JP2018047043A - Heating tool for milking and milking tool using heating tool for milking - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a brest heating tool capable of being heated quickly, keeping such temperature as mush as possible, and further alleviating feeling of tension when a milking port is applied to a breast, and to provide a milking tool using the breast heating tool.SOLUTION: A heating tool for milking 10 includes a heat generating part 15 connected to a milking port 18 covering a breast in milking and generating heat at a higher temperature than the milking port 18. The heat generating part 15 includes a ferrite absorbing microwave energy and generating heat. The heating tool for milking includes a cover part 12 covering the heat generating part 15 with thermoset resin and thereby reducing a temperature transmitted from the heat generating part 15 to a breast such that a contact temperature via the milking port 18 or directly with a breast in milking is equal to or higher than a temperature of a breast and equal to or lower than a temperature preventing a low temperature burn.SELECTED DRAWING: Figure 5

Description

  The present invention relates to a heating device for milking that warms a breast during milking, and a milking device using the same.

A breast pump that removes breast milk is used when it is difficult to give breast milk directly to an infant, when the nipple is damaged, or when mastitis is prevented.
This milking machine has a funnel-shaped hood part having a milking mouth that covers the breast, a milking machine main body to which the hood part is connected and a container for storing milked milk, and a milking machine main body. And a pump unit for applying or releasing negative pressure to the space surrounded by the milking mouth.

  When milking using such a breast pump, the user uses the breast in close contact with the milking mouth, so the cold milking mouth cools the breast. This coldness of the breast worsens blood circulation and reduces the amount of blood, which makes the milk output worse, and suddenly touches the breast with a cold milking mouth, creating tension, which causes breast milk It has also been found that the hormones used to release the drug decrease. For this reason, when milking, it is preferable that the milking mouth is warmed moderately.

Conventionally, as an apparatus for heating a milking mouth, there is a breast cap shown in patent documents 1, for example. That is, as shown in FIG. 1 of Patent Document 1, a pad 16 in which a gel-like resistance heating element, which is a heat storage material such as medicinal paraffin, is accommodated on the inner surface of the breast cap (hood portion) in contact with the breast. Is provided. Therefore, the user warms the pad 16 with hot water before milking, thereby eliminating the cooling during milking.
In Patent Document 1, as shown in FIG. 2, the breast cap has not only the pad 16 but also a heater 9 made of a resistance heating wire. Thereby, even if the pad 16 is cooled, electric power is supplied to the heater 9 to generate heat, thereby eliminating the cooling of the breast even during milking. In addition, about the conventional milking machine which heats a breast only with the heater which consists of resistance heating wires, there exists patent document 2, for example.

Japanese Patent No. 4431583 Special table 2009-520524 gazette

By the way, in the heat storage material method by the pad 16 in which the medicinal paraffin etc. which were shown in FIG. 1 of patent document 1 were accommodated, it is necessary to heat the pad 16 with hot water etc., and it takes time to warm, and the operation | work is difficult. . In addition, since the pad 16 cools down immediately, it is necessary to provide a heater composed of a resistance heating wire in the hood portion as shown in FIG.
However, this electric heater type using a resistance heating wire needs to energize the milking mouth during milking and cannot be used for a manual breast pump that does not require a power source. In addition, with regard to the electric milking machine, the user is tense just by seeing the resistance heating wire, and this slight tension leads to the cause of worsening the milk output. Breast milk output depends considerably on the mental state (Patent Document 2 is also of the electric heater type and has the same problem). Furthermore, the chemical heater and boiling sterilization cannot be performed with the electric heater type.
In addition, the inventor tried various other methods such as a steaming towel, hot water bottle, and warmer method, all of which have problems such as the time required for heating and the temperature dropping immediately. I understood.

  The present invention has been made in view of the above circumstances, can be warmed immediately, can maintain the temperature as much as possible, and can further reduce the tension when the milking mouth is applied to the breast. It aims at providing a warming tool and a milking machine using the same.

  According to the present invention, the above-described problem is a milking warming device that is connected to a milking mouth that covers a breast at the time of milking and includes a heat generating part that generates heat at a temperature higher than that of the milking mouth. By having ferrite that absorbs microwave energy and generating heat, and covering the heat generating part with a thermosetting resin, the temperature of contact with the breast through the milking mouth or directly during milking is reduced. This is solved by a milking warming device having a covering portion that lowers the temperature transmitted from the heat generating portion to the breast so as to be equal to or higher than the temperature and equal to or lower than the temperature at which low temperature burns are not caused.

According to the configuration of the present invention, the milking warming device including the heat generating portion that generates heat at a temperature higher than the milking mouth is connected to the milking mouth that covers the breast at the time of milking. If connected, the milking mouth can be warmed and the cooling of the breast can be prevented. Moreover, if it connects to the inner peripheral surface side of a milking opening, the warming heating tool for milking can be made to contact a breast directly and cooling of a breast can be prevented. In addition, the connection structure to the milking opening of the heating device for milking of the present invention may be either a detachable type or a fixed type.
Here, the heat generating part has ferrite (iron oxide) that absorbs microwave energy and generates heat. Therefore, the user can heat the heat generating portion with a microwave oven in a short time. Moreover, the exothermic part with which this ferrite was mix | blended can also prevent the situation where temperature falls at least for a long time (for example, about 10 minutes for one breast) corresponding to milking time.
By the way, ferrite is used in many ways, such as heating food, and the temperature is too high in a heat generating part containing general ferrite. However, according to the configuration of the present invention, the temperature transmitted from the heating part to the breast through the milking mouth or directly at the time of milking is such that the temperature at which the breast does not cause low-temperature burns. It has the coating part which lowers. Therefore, even if milking for a long time, this covering part can be used as a cushioning material to prevent low-temperature burns of the breast (for example, if the covering part is thickened so that the contact temperature is 46 ° C., about 30 minutes) Even if it keeps coming into contact with the skin, it does not cause low-temperature burns, and even if the milking time is long due to the safety factor, low-temperature burns can be reliably prevented).
Further, if the contact temperature is equal to or higher than the temperature of the breast, it is possible to avoid a decrease in hormone secretion by avoiding at least tension generated when the milking mouth is brought into contact with the breast. Speaking of tension, there is no resistance heating wire, so that it can alleviate the tension of the user.
In addition, since this covering portion is a thermosetting resin, it does not deform or melt when the heating portion is heated in a microwave oven.For example, when connecting removably to the milking mouth, A suitable shape can be maintained.
Furthermore, since the heating device for milking is covered with a resin coating, the connection structure to the milking mouth of the heating device for milking is either removable or stationary, You can also do it.
The “contact temperature to the breast” is preferably a temperature at which the breast is first contacted, but may be slightly different. In addition, the milking mouth is removed from the breast for a long time during milking, and the contact temperature when it comes into contact with the breast again is excluded.

Moreover, Preferably, the said coating | coated part is arrange | positioned at the outer peripheral surface on the opposite side to the internal peripheral surface where the said breast of the said milking mouth contacts.
If it does so, since the heat | fever of the heat generating part of the heating tool for milking arrange | positioned at the outer peripheral surface of a milking mouth will be transmitted to a breast via a milking mouth, not only a coating | coated part but a milking mouth will also become a thermal buffer material. Accordingly, the thickness of the covering portion can be suppressed by the amount that the milking mouth becomes a cushioning material, the weight of the heating tool for milking can be suppressed, and fatigue caused by milking of the user can be reduced.

Preferably, the surface temperature of the covering portion on the side opposite to the milking mouth side is equal to or higher than the contact temperature, and the milking warming tool that has appropriately generated heat is touched by a low temperature. It is characterized by being at a temperature that does not cause burns.
Therefore, the temperature of the heated milking warming device can be easily felt by hand before milking, and burns can be prevented.
That is, if the thickness from the heating part to the surface opposite to the milking mouth of the covering part is increased and the heat is not felt by touching the surface, the overheated heating part is noticed. Without touching the breast through the milking mouth, there is a risk of burns. In addition, this is the same also when the connection structure to the milking opening of the heating tool for milking is a detachable type or a fixed type.
Therefore, for example, without increasing the dimension in the thickness direction of the surface opposite to the milking mouth of the covering part and the heat generating part, the user dares to make the temperature of the surface equal to or higher than the contact temperature to the breast. The temperature of the heated milking heating tool was easily felt by hand before milking. Therefore, for example, if the milking warming device is a detachable type, it is possible to prevent the breast from being burned by making the overheating milking warming device worn on the milking mouth. In addition, even with the fixed type, it is possible to prevent the burn of the breast in advance by feeling an overheated temperature before applying the milking mouth to the breast.
In addition, the surface temperature of the covering portion is set to a temperature that does not cause low-temperature burns when a properly heated milking warming device is attached to the milking mouth. For example, the milking heating device is detachable. But you can put it on the milking mouth without burning your hands. In addition, the above-mentioned “appropriate heat generation” is intended to exclude abnormal usage that violates the specification, and the heating device for milking is heated in a microwave oven according to the specification, and the milking heating device is passed through the milking mouth. It refers to fever in a state where the temperature of contact with the breast is below the temperature at which low temperature burns do not occur.

Preferably, the covering portion is made of a silicone resin, and a dimension in a thickness direction from the heat generating portion to the surface on the outer peripheral surface side is about 1 to 2 mm. Is a plate-like body having a thickness of about 0.5 to 1 mm, and the weight ratio of the silicone resin and the ferrite constituting the heat generating portion is about 6: 1 to 9: 1. .
With such a configuration, effective heating can be performed quickly by a microwave oven (for example, around 60 seconds for a 500 W microwave oven), and the contact temperature to the breast via the milking mouth is made comfortable. Can promote the delivery of breast milk.
That is, if only low-temperature burns of the breast are to be prevented, for example, the weight ratio of the silicone resin in the heat generating part to ferrite is set to 2 or more, so that the contact temperature to the breast through the milking mouth is suppressed to about 46 ° C. (46 ° C is a temperature that does not cause low-temperature burns even if it is kept in contact with the skin for about 30 minutes, and it is usually a long milking time in view of the safety factor of the milking time that requires about 10 minutes for one chest. Even so, it is a temperature that can effectively prevent low-temperature burns). However, in order to promote milking more positively, it is preferable not only to prevent low-temperature burns but also to give comfort to the user. Thus, as a result of the experiment, if the heating device is appropriately heated, the breast of the milking mouth comes into contact with the appropriately heated milking heating tool so as to be in close contact with the outer peripheral surface of the milking mouth made of general polypropylene or the like. It has been found that the temperature on the inner peripheral surface side can be approximately 37 to 42 ° C. This 37 ° C. is slightly higher than the normal body temperature, and 42 ° C. is a slightly higher hot water temperature at the time of bathing, so if the contact temperature is within this range, only low-temperature burns are prevented. Rather, it can give comfort to the user. Therefore, milking can be promoted effectively.

Preferably, the covering portion includes a through-hole through which a cylindrical portion that is attached to and detached from the breast pump main body of the substantially funnel-shaped hood portion having the milking mouth can be inserted, and an extended portion that extends outward from the through-hole. And the extended portion has a shape corresponding to the outer peripheral surface of the milking mouth.
For this reason, the hood part can be removed from the breast pump body, and the tubular part of the hood part can be passed through the through hole of the milking warming tool, or removed from the through hole, so that the milking heating tool can be attached to and detached from the milking mouth. Can be connected to. Accordingly, the milking heating tool can be independently heated in the microwave oven separately from the hood portion, and the risk of deformation and melting due to heating in the microwave oven of the hood portion (including the milking mouth) can be prevented.
In addition, since the extended portion extending outward from the through hole has a shape corresponding to the outer peripheral surface of the milking mouth, the extended portion is in close contact with the outer peripheral surface of the milking mouth even if the milking mouth is formed of a resin having low flexibility. Can be made.

Preferably, positioning means for locking and positioning with the covering portion is formed on the outer peripheral surface of the milking mouth.
Therefore, even if it is the structure where the heating tool for milking is attached to or removed from the milking mouth, the possibility that the heating tool for milking may come off from the milking mouth can be effectively prevented.

Preferably, the extended portion is arranged along a substantially trumpet-shaped circumferential direction of the milking mouth, and a part of the circumferential direction is interrupted.
That is, the extended portion has a notch from the through hole to a part of the peripheral edge (periphery of the opening opposite to the through hole), so that the extended portion expands the interrupted notch. Thus, the circumferential dimension can be changed. Therefore, even if the hood part which connects it is large, the heating tool for milking can be connected by changing the dimension of the circumferential direction.

Moreover, Preferably, the said coating | coated part is an elastic body, Comprising: It arrange | positions at the internal peripheral surface of the said milking mouth, It is characterized by the above-mentioned.
When it does so, the breast inserted in the milking mouth at the time of breastfeeding and the covering part arranged on the inner peripheral surface of the milking mouth will be in direct contact.
Here, as described above, since the milking warming device is configured to contact the breast so as to prevent low-temperature burns, the thickness of the covering portion has a predetermined size. And since this thick coating | coated part is an elastic body, when a breast is suck | inhaled by the breast pump at the time of milking, a coating | coated part becomes a cushion and can relieve pain. Further, even if the shape of the milking mouth and the shape of the breast do not match somewhat, the breast and the covering portion are brought into close contact with each other, and the space around the nipple is made negative pressure, so that milking can be performed reliably.

And the said subject is a milking machine which has the said milking opening to which the heating tool for milking in any one mentioned above was connected, and the breast pump main body for making the space enclosed by the said milking opening into a negative pressure. It is solved by.
According to this configuration, as described above, since the heat generating portion has ferrite, it can be heated in a short time in a microwave oven, and a situation in which the temperature greatly decreases during the milking time can also be prevented.
Moreover, even if the temperature of the heat generating part is high, the covering part can be thermally cushioned to prevent low-temperature burns on the breast, and at least avoid the tension caused by the sensation when the milking mouth is applied to the breast. This can also prevent a decrease in hormone secretion.
And since this coating | coated part is a thermosetting resin, it can hold | maintain the suitable shape suitable for the milking mouth connected, without deform | transforming and fuse | melting.

Preferably, the milking warming device is connected to the milking mouth inseparably.
Therefore, there is no need to connect the milking heating tool to the milking mouth, and milking can be started more easily and quickly.

Preferably, the milking mouth has a temperature sensor in an area to which the heating device for milking is connected, and based on a detection result of the temperature sensor, the milking mouth is at or above a temperature that causes a low-temperature burn of the breast. An informing unit for informing the user of the above is provided.
Therefore, even if the user uses the specification different from the specification and the heating device for milking is heated too much in the microwave, the temperature sensor detects it and informs the user of it in the notification section. Can prevent burns.

  As described above, according to the present invention, a breast heating device that can be warmed immediately and can maintain the temperature as much as possible, and further relieves tension when the milking mouth is applied to the breast, and the same are used. A milking machine can be provided.

The general | schematic center longitudinal cross-sectional view of the milking machine which connected the heating tool for milking which concerns on 1st Embodiment of this invention. The perspective view of the heating tool for milking of FIG. The perspective view of the food | hood part to which the heating tool for milking of FIG. 1 was connected. The disassembled perspective view of the heating tool for milking of FIG. 1, and a food | hood part. It is the perspective view of the food | hood part to which the warming tool for milking of FIG. 1 was connected, and the figure by which a part of warming tool for milking was notched. FIG. 6A shows the measurement conditions when the thickness of the heat generating portion and the ferrite blending ratio are changed, and FIG. 6B shows the test results (temperature of the inner peripheral surface of the milking mouth). FIG. 7A shows the measurement conditions when the output of the microwave oven and the heating time are changed. FIG. 7B shows the measurement conditions, and FIG. 7B shows the test results (temperature of the inner peripheral surface of the milking mouth). FIG. 8A shows the measurement conditions when the thickness of the covering portion is changed, and FIG. 8B shows the test results (temperature of the inner peripheral surface of the milking mouth). FIG. 9A shows the measurement conditions of the surface temperature of the covering portion, FIG. 9A shows the measurement conditions, and FIG. 9B shows the test results (temperature of the surface temperature of the covering portion). The transition data of the temperature of the internal peripheral surface of the milking mouth before and after connecting the heating tool for milking of FIG. 1 heated with the microwave oven to the milking mouth. It is a modification of the heating tool for milking which concerns on 1st Embodiment of this invention, FIG. 11 (A) is the fragmentary figure showing the cross section of the 1st modification, FIG.11 (B) is the cross section of a 2nd modification. FIG. The perspective view of the food | hood part which connected the heating tool for milking which concerns on the 3rd modification of 1st Embodiment of this invention. The perspective view which concerns on the modification of the milking machine which connected the heating tool for milking of FIG. The perspective view of the food | hood part which has the heating tool for milking which concerns on 2nd Embodiment of this invention. AA sectional drawing of FIG. The schematic longitudinal cross-sectional view which connected the heating tool for milking which concerns on 3rd Embodiment of this invention to the food | hood part, and cut | disconnected longitudinally.

Preferred embodiments of the present invention will be described below in detail with reference to the accompanying drawings.
The embodiments described below are preferable specific examples of the present invention, and thus various technically preferable limitations are given. However, the scope of the present invention particularly limits the present invention in the following description. As long as there is no description of the effect, it is not restricted to these aspects. Moreover, the same code | symbol attached | subjected in each figure has the same structure.

[First Embodiment]
FIG. 1 is a schematic central longitudinal sectional view of a milking warming device 10 according to a first embodiment of the present invention and a milking machine 20 using the same. In addition, about the part of the food | hood part 16 and the heating tool 10 for milking, the parallel oblique line showing a cross section is abbreviate | omitted and illustrated.
First, the milking machine 20 will be described.
The breast pump 20 in FIG. 1 is used when it is difficult to feed breast milk directly to an infant, when the nipple is damaged, when preventing mastitis, and the like, and a manual type is shown as an example of the present invention.
This manual milking machine 20 is an instrument that can be manually operated by a user, and can be operated by the user, so that it is lightweight and can be operated with one hand to reduce fatigue. Those are preferred.
The breast pump 20 in FIG. 1 includes a “hood part 16” applied to the breast, a “milker body 21” having a communication part S3 that is a space communicated with the space S1 surrounded by the hood part 16, and the main body 21. A "diaphragm 30" that is a negative pressure generating member that generates a negative pressure in the communication portion S3, a "handle 61" that is an operation portion that deforms the diaphragm 30, and a "bottle 11" for storing milked milk. ing.
Although the food | hood part 16, the diaphragm 30, the handle | steering_wheel 61, and the bottle 11 of this embodiment are detachable with respect to the breast pump main body 21 as a preferable aspect, this invention is not necessarily restricted to this, The main body 21 is attached. It may be fixed to.

The “hood portion 16” is also called a funnel or a breast cap, and is formed of a relatively light and hard synthetic resin material and hardly deformed. For example, it is generally made of polypropylene which is a thermoplastic member. It is.
The hood portion 16 is generally funnel-shaped and extends from a substantially trumpet-shaped or substantially dome-shaped milking port 18 that covers the breast during milking and a reduced diameter portion 18A having the smallest diameter of the milking port 18. And has a cylindrical part 19 that is detachably connected to the breast pump main body 21.

The milking mouth 18 is a portion into which a breast is inserted, and has a space S1 surrounded by an inner peripheral surface 18B having a shape corresponding to the breast. Then, the breast is inserted from the enlarged diameter portion 18C having the largest diameter, the breast is accommodated in the space S1, and the breast is substantially in close contact with the inner peripheral surface 18B, whereby the nipple area disposed near the reduced diameter portion 18A is It is a sealed space. In the case of the milking machine 20 in the figure, the structure is such that milking is performed by making the sealed space around the nipple negative pressure. The milking mouth 18 is transparent or translucent.
The cylindrical portion 19 extends along a substantially center line CL of the milking mouth 18, and an end 19 </ b> A opposite to the milking mouth 18 side is inserted into the breast pump main body 21, and comes off from the breast pump main body 21 during milking. It is not fitted. Although the cylindrical part 19 of this embodiment is made into a substantially cylindrical body, this invention is not limited to this, For example, a regular triangle body, a regular square body, a regular polygon body, etc. may be sufficient.

The “milker body 21” is formed of a relatively light and hard synthetic resin material, and is formed of, for example, polypropylene, polycarbonate, polycycloolefin, polyethersulfone, polyphenylsulfone, or the like. .
The mounting portion 17 to which the hood portion 16 of the breast pump main body 21 is attached has a cylindrical shape, and has an air passage 23 serving as a passage for the aerated and milked breast milk. The air passage 23 is spatially connected to the communication portion S3 via an internal space S2 formed at a substantially central portion in the main body 21.
The communication portion S3 is a region where a negative pressure is applied, and the diaphragm 30 is connected so as to cover and seal the communication portion S3. When the communication portion S3 is brought into a negative pressure state by the deformation of the diaphragm 30, the space S1 surrounded by the hood portion 16 can be made negative pressure via the internal space S2 and the air passage 23.

  A lower side of the internal space S2 of the main body 21 opens toward the bottle 11, and a valve 26 is provided in the opened portion. The valve 26 is formed of an elastic body such as silicone rubber and has a slit 26a at the tip. The slit 26a is closed when the communicating portion S3 is in a negative pressure state, and is opened when the communication portion S3 is released from the negative pressure state. Thereby, when the communicating part S3 is brought into a negative pressure state, the breast milk is drawn into the internal space S2, and when the negative pressure state is released, the slit 26a is opened, and the breast milk in the internal space S2 can be dropped into the bottle 11.

In the upper part of the main body 21, an arm 48 extends at a position opposite to the hood part 16. A support shaft 49 for attaching the handle 61 is formed at the upper end of the arm 48.
As a result, the handle 61 is rotatable about the support shaft portion 49 of the main body 21 around the support shaft portion 49 (Y direction in the figure), and the diaphragm is deformed by this rotation operation.

  The “diaphragm 30” is a negative pressure generating member for generating a negative pressure. The diaphragm 30 is deformed in response to the operation of the handle 61 and changes the volume of the space of the communication portion S3. Is supposed to be granted. Specifically, the diaphragm 30 is connected to the handle 61 via the coupling portion 70. The coupling portion 70 protrudes upward and is made of a hard synthetic resin such as polypropylene or polycarbonate. The diaphragm 30 is made of a flexible deformable material, such as silicone rubber or isoprene rubber, which is relatively elastic as a whole.

The “handle 61” has a long shape and is formed of a relatively hard and lightweight synthetic resin such as polypropylene, polycarbonate, polycycloolefin, polyethersulfone, or the like.
The handle 61 is disposed above the diaphragm 30 and is connected to the coupling portion 70 to lift the diaphragm 30. The lever 61 is bent from the lift portion 61A and is positioned corresponding to the side surface of the breast pump main body 21. Part 61B.
By moving the finger FG arranged on the outer surface side of the lever portion 61B so as to approach the main body 21, the handle 61 rotates about the support shaft portion 49, and the lift portion 61A moves the diaphragm 30 via the coupling portion 70. Lifting up, the space of the communication portion S3 becomes large and a negative pressure state is obtained, and the breast milk is sucked. On the other hand, when the force of the finger FG is weakened, the elastic force of the diaphragm 30 is exerted, the diaphragm 30 returns to the original state, the negative pressure state of the communication portion S3 is canceled, and the valve 26 is opened. The sucked breast milk falls into the bottle.

  The “bottle 11” has a male screw portion (not shown) formed around the bottle mouth, and is screwed with a female screw portion (not shown) formed on the lower inner surface of the breast pump main body 21. It is detachable with. The bottle 11 may be a dedicated product for the breast pump 20, a baby bottle adapted to the above-described attachment / detachment structure, etc. may be used, and may be a bag shape instead of a molded container. .

Here, the milking mouth 18 described above is connected to the milking warming device 10 including a heat generating portion 15 that generates heat at a temperature higher than that of the milking mouth 18 and heats the milking mouth 18.
Hereinafter, this heating device 10 for milking is demonstrated using FIG. 1 mentioned above, and FIGS.
FIG. 2 is a perspective view of the milking warming device 10, and FIG. 3 is an outer peripheral surface (surface opposite to the inside where the breast is inserted) 18D side of the hood portion 16 in a state where the milking warming device 10 is connected. 4 is an exploded perspective view of the milking warming tool 10 and the hood part 16, and FIG. 5 is a perspective view of the hood part 16 to which the milking warming tool 10 is connected. It is the figure where a part of was cut away. In addition, the figure enclosed with the circle | round | yen of FIG. 5 is the figure which expanded the cross-section vicinity of the heating tool 10 for milking.

In the case of the present embodiment, the milking warming device 10 is disposed on the outer peripheral surface 18D of the milking mouth 18, and transmits the heat generation temperature to the breast via the milking mouth 18, and the heating portion 15 and the heat generation. A covering portion 12 that covers the portion 15 is provided.
The heat generating part 15 is blended with ferrite (Fe ₂ O ₄ ) that absorbs microwave energy and generates heat. The ferrite is MgCuZn-based ferrite and has, for example, a spinel structure. The heat generating portion 15 is formed by adding powdered MgCuZn-based ferrite to a silicone resin as a base material, kneading, and firing the resultant. The weight ratio of silicone resin to ferrite is suitably about 2: 1 to 9: 1 of silicone resin: ferrite, and preferably about 6: 1 to 9: 1. This point will be described later in detail using the results of the measurement test.

  The heat generating portion 15 made of this ferrite-containing silicone resin is formed by forming a thin plate (sheet) into a ring shape, and the thickness D2 shown in FIG. 5 can be about 0.5 to 3 mm, preferably about 0. .5 to 1.0 mm is recommended. Thus, since the heat generating part 15 has a small thickness dimension and blends ferrite with a soft silicone resin, it has predetermined elasticity and flexibility. For this reason, the heat generating portion 15 has a generally flat ring shape when no force is applied, but when it is covered by the covering portion 12, it is flexible and becomes a substantially conical cylinder shape (the shape of this conical cylinder is the covering shape). Part 12). The conical cylinder-shaped heat generating portion 15 has a size that fits on the outer peripheral surface 18D when arranged on the outer peripheral surface 18D of the milking mouth 18 via the covering portion 12, and in the case of the figure, the width W1 is about 15 mm, the circumference The length of is approximately 250 mm. With the heat generating portion 15 having the above size, the weight does not increase as much as the left, and the burden on the arm having the breast pump does not increase so much.

The covering portion 12 is a cushioning material that covers the entire heat generating portion 15 so that the heat generating portion 15 is not exposed and reduces the temperature transmitted from the heat generating portion 15 to the breast. That is, the heat generating part 15 is likely to be heated to a high temperature when exposed to microwaves in a microwave oven (although depending on the blending ratio of silicone and ferrite, it increases immediately up to 100 degrees at a normal blending ratio). For this reason, the coating | coated part 12 which covers the heat generating part 15 is the temperature to the breast of the milking mouth 18 which attached the heating tool 10 for milking at the time of milking (it is the temperature of the internal peripheral surface 18B of the milking mouth 18 of FIG. The material and thickness are devised so that the temperature of the first contact with the breast is preferably equal to or higher than the temperature of the breast and the breast does not burn.
Furthermore, milking takes a considerable amount of time, and although there are individual differences, it often takes about 10 minutes even for one breast, so that the covering portion 12 has a low temperature caused by the milking mouth 18 coming into contact with the breast for a long time. A structure that prevents burns is preferable. At this time, since the low temperature burn may occur in 46 minutes at a contact time of 30 minutes, the contact temperature during the contact with the breast is preferably 46 ° C. or less in view of the safety factor.

  In the case of the present embodiment, the covering portion 12 is formed separately from the heat generating portion 15, and is formed of a silicone resin having a relatively low thermal conductivity and high heat resistance. That is, apart from the silicone resin that serves as the base material of the heat generating portion 15, the heat generating portion 15 is further covered with a silicone resin to form a heat insulating layer having a predetermined thickness where no ferrite is present. The temperature of the part 15 is lowered. Note that the silicone resin of the covering portion 12 may be either millable silicone or liquid silicone.

In addition, the silicone resin of the covering portion 12 is a thermosetting resin excellent in heat resistance, and therefore, it can be prevented from being deformed / melted even if it is placed in a microwave oven and the heat generating portion 15 inside thereof is heated. .
The covering portion 12 made of the silicone resin shown in FIG. 5 can have a thickness D1 from the heat generating portion 15 to the outer peripheral surface 18D side surface (inner surface) 12D of the milking mouth of 0.5 to 3 mm, preferably 1 to 1 mm. It should be 2 mm. Thereby, the contact temperature to the breast through the milking opening 18 of the heating tool 10 for milking can be made to be not less than the temperature of the breast and at least not to a temperature at which low-temperature burns are not caused. The temperature can be comfortable for a person.

Moreover, the coating | coated part 12 is when the temperature of the surface 12E on the opposite side to the milking opening 18 is equal to or higher than the contact temperature to the breast, and the milking warming device 10 that has appropriately heated is touched by hand. The temperature is set so as not to cause low temperature burns. Accordingly, the temperature of the heated milking heating tool 10 can be easily felt by hand before milking, and the overheating of the heating milking heating tool 10 is made to be attached to the milking mouth 18 so that the breast burns. It can be prevented beforehand. In addition, the temperature of the surface 12E of the covering portion 12 is equal to or lower than a temperature at which low temperature burns are not caused when the milking warming tool 10 is attached to the milking mouth 18, and the milking warming tool 10 is removable. It can be attached to the hood 16 without burning the hand.
In the case of the figure, the heat generating portion 15 is disposed at the center in the thickness direction of the covering portion 12, and the thickness D3 from the heat generating portion 15 to the surface 12E of the covering portion 12 is made the same as the thickness D1, and heat is appropriately generated. The temperature of the surface 12E of the heating tool 10 for milking is about 50 to 53 ° C. If the surface temperature is 50 to 53 ° C., it is possible to detect danger by feeling heat by hand. Further, even if the surface 12E is kept in direct contact with the hand for approximately 2 minutes, there is no low-temperature burn, and the warming tool 10 for milking can be attached to the hood 16 within 2 minutes.

  In the present embodiment, the heat generating portion 15 and the covering portion 12 are formed separately and combined to form them, but they may be integrated. For example, as shown in a diagram surrounded by a one-dot chain line in FIG. 5, a layer of a heat generating portion 2 in which ferrite powder is arranged on a silicone resin is formed in the central portion, and a covering portion 3 made of a silicone resin having no ferrite above and below it. The entire circumference of the heat generating part 2 may be surrounded by the covering part 3 so as to form the above layer.

As shown in FIGS. 1-4, the coating | coated part 12 makes the outer shape of the heating tool 10 for milking as it is, The characteristic in the external shape of the coating | coated part 12 is the characteristic of the outer shape of the heating tool 10 for milking. It becomes.
The outer shape of the covering portion 12 in the figure corresponds to the outer peripheral surface 18 </ b> D of the milking mouth 18, and is a ring shape having a conical cylinder shape or a dome shape as a whole. That is, the covering portion 12 has a through hole 8 through which the cylindrical portion 19 of the hood portion 16 can be inserted in the center portion. The through hole 8 has a circular shape that is slightly larger than the outer diameter of the cylindrical portion 19, and its diameter L is about 50 mm. Thereby, the heating device 10 for milking becomes detachable with respect to the food | hood part 16 removed from the breast pump main body 21, Therefore, it is thermoplastics, such as a polypropylene, The food | hood part 16 which may deform | transform and melt | dissolve with heat. Can be removed and heated in a microwave oven.

As shown in FIGS. 2 and 3, the covering portion 12 has an extended portion 12 </ b> B that extends outward from the through hole 8. The extended portion 12B is a portion connected to the milking mouth 18, and forms the outer shape of the covering portion 12. In the case of this embodiment, the outer peripheral surface is arranged so as to be in close contact with the outer peripheral surface 18D of the milking mouth 18. It is a ring shape with a conical cylinder shape and a dome shape corresponding to 18D.
Accordingly, in the covering portion 12, the expanded portion 12B is in close contact with the outer peripheral surface 18D of the milking mouth 18, and since the silicone resin that is the material has an elastic force, the outer peripheral surface 18D of the milking mouth 18 by the grip force. It is difficult to shift the position.

Furthermore, as shown in FIGS. 3-5, in order to maintain the appropriate arrangement | positioning of the expansion part 12B with respect to outer peripheral surface 18D of the milking mouth 18, it is locked with the coating | coated part 12 and positioned on outer peripheral surface 18D. Positioning means 77 is provided. The positioning means 77 in the figure is located at the position of the edge 8A of the through hole 8 when the extended portion 12B is disposed on the outer peripheral surface 18D of the milking port 18, and is formed so as to protrude from the outer peripheral surface 18D of the milking port 18. This degree of protrusion (the height of the positioning means 77) is a predetermined flexibility when the extended portion 12B is disposed on the outer peripheral surface 18D of the milking port 18 after passing the cylindrical portion 19 of the hood portion 16 through the through hole 8. The height is low enough to allow the extended portion 12B to be overcome.
Thus, even if the positioning means 77 is low, the extension portion 12B is made of silicone resin and has a predetermined elastic force. Therefore, once the extension portion 12B gets over the positioning means 77, the extension portion 12B and the positioning means 12B. 77 is locked. A plurality of positioning means 77 shown in the figure are provided at the same interval, and each is bent similarly to the edge 8A of the through hole 8.
In addition, as for the extended part 12B shown in FIG. 2, the outer edge part 24 of the opening part 12C on the opposite side to the through-hole 8 has the convex part 29 formed in the diameter-expanded part 18C side of the milking port 18, as shown in FIG. , Thereby preventing the milking heating device 10 from being displaced more effectively at the time of milking. The engagement of 28 is not always necessary.

[About measurement test]
6 to 10, as in the above-described embodiment, a milking warming tool is brought into close contact with the outer peripheral surface of a milking mouth made of polypropylene having a thickness of about 1 mm, and the temperature of the inner peripheral surface of the milking mouth (this is (It is a contact temperature to the breast) and the like (for reference numerals shown in the following description of FIGS. 6 to 10, refer to the reference numerals shown in FIG. 5).
By this measurement test, the dimension D1 in the thickness direction from the heat generating portion 15 of the covering portion 12 to the outer peripheral surface side surface (inner surface) 12D of the milking mouth is approximately 1 to 2 mm, and the heat generating portion 15 applies ferrite to the silicone resin. It is appropriate that the weight ratio of the blended plate-like body having a thickness of about 0.5 to 1 mm, the silicone resin and the ferrite of the heat generating part 12 is about 3: 1 to 9: 1, and further, the heat generating part 15 It can be seen that it is more preferable that the weight ratio of the silicone resin to ferrite is approximately 6: 1 to 9: 1. Hereinafter, it demonstrates for every figure.

FIG. 6 is a measurement test when the thickness D2 of the heat generating part 15 and the ferrite blending ratio are changed, FIG. 6 (A) shows the measurement conditions, and FIG. 6 (B) shows the test result (milking mouth's result). Maximum temperature of the inner peripheral surface).
As shown in FIG. 6 (A), the measurement test is performed by heating for milking in which the dimension D1 from the heat generating portion 15 of the covering portion 12 to the inner side surface 12D (hereinafter referred to as “the thickness of the covering portion 12”) is 2 mm. The tool was heated in a microwave oven with an output of 500 W for 60 seconds. As shown in FIG. 6B, when the thickness D2 of the heat generating part 15 is 0.5 to 1 mm, the weight ratio of the silicone resin and the ferrite of the heat generating part 12 is in the range of 3: 1 to 9: 1. The temperature of the inner peripheral surface of the milking mouth could be 37-42 degreeC. 37 ° C is a slightly higher temperature than normal body temperature, and 42 ° C is a slightly higher hot water temperature at the time of bathing. Therefore, a contact temperature within this range not only prevents low-temperature burns but also actively The comfort can be given to the user and milking can be effectively promoted. If only low-temperature burns are to be prevented, the weight ratio of the silicone resin and ferrite constituting the heat generating portion 15 can be about 2: 1.

FIG. 7 is a measurement test when the output of the microwave oven and the heating time are changed, FIG. 7 (A) is the measurement condition, and FIG. 7 (B) is the test result (maximum temperature of the inner peripheral surface of the milking mouth). is there.
As can be seen from FIG. 7, the milking warming device in which the thickness D2 of the heat generating portion 15 is 1 mm, the thickness D1 of the covering portion 12 is 2 mm, and the weight ratio of the silicone resin and ferrite of the heat generating portion 15 is 6: 1. Regardless of whether the microwave oven has an output of 500 W or 1000 W, the temperature of the inner peripheral surface of the milking mouth can be set to 37 to 42 ° C. by making the heating time correspond.
For example, when the measurement condition is changed from 6: 1 to 9: 1 in FIG. 7 for the weight ratio of the silicone resin and ferrite in the heat generating part 15, the temperature decreases by 1 to 2 ° C. as shown in FIG. It can be seen that if the heating time is increased accordingly, the temperature of the inner peripheral surface of the milking mouth can be set to 37 to 42 ° C. Even when the measurement condition is changed to 3: 1, the temperature rises by 2 to 3 ° C. as shown in FIG. 6. Therefore, if the heating time is reduced by that amount, the temperature of the inner peripheral surface of the milking mouth is 37. It can also be seen that it can be -42 ° C.
In addition, as for the thickness D2 of the heat generating portion 15, when the measurement condition is changed from 1 mm to 0.5 mm in FIG. 7, there is a decrease of 1 to 2 ° C. compared to 1 mm as shown in FIG. It can also be seen that if the heating time is increased, the temperature of the inner peripheral surface of the milking mouth can be 37-42 ° C.
Also, with respect to the thickness D1 of the covering portion 12, when the measurement condition is changed from 2 mm to 1 mm in FIG. 7, the temperature rises by about 2 ° C. as shown in FIG. It can also be seen that the temperature of the inner peripheral surface of the milking mouth can be 37-42 ° C.
As described above, the output value and the heating time of the microwave oven are such that the thickness D1 of the covering portion 12 is about 1 to 2 mm, the thickness D2 of the heat generating portion 15 is 0.5 to 1 mm, and the silicone resin and ferrite of the heat generating portion 15 When the weight ratio is in the range of 3: 1 to 9: 1, it can be seen that the temperature of the inner peripheral surface of the milking mouth can be 37 to 42 ° C. without greatly changing the heating time. Thus, since the output value and heating time of the microwave oven can be changed and determined according to various conditions, first, the temperature of the inner peripheral surface of the milking mouth (contact temperature to the breast) is determined, and then Then, the thickness D2 of the heat generating part 15, the thickness D1 of the covering part 12, and the weight ratio of the silicone resin and the ferrite of the heat generating part 15 are specified, and finally the use conditions on the user side so as to satisfy these conditions What is necessary is just to decide the output value and heating time of a microwave oven.

FIG. 8 is a measurement test when the thickness D1 of the covering portion 12 is changed, FIG. 8 (A) is the measurement condition, and FIG. 8 (B) is the test result (maximum temperature of the inner peripheral surface of the milking mouth). is there.
As shown in FIG. 8, when the weight ratio of the silicone resin and the ferrite in the heat generating portion 15 is 6: 1 and the thickness D2 of the heat generating portion 15 is 1 mm, the thickness D1 of the covering portion 12 is 1. Within the range of ˜2 mm, the temperature of the inner peripheral surface of the milking mouth could be 40 to 42 ° C.
In this respect, when the weight ratio of the silicone resin and the ferrite of the heat generating portion 15 is 9: 1, the temperature of the inner peripheral surface of the milking mouth is lower than when the weight ratio is 6: 1 (for example, as shown in FIG. The ratio is reduced by 1 to 2 ° C. compared to when the ratio is 6: 1. Therefore, even when the weight ratio is 9: 1, the thickness D1 of the covering portion 12 is similarly within the range of 1 to 2 mm. It turns out that it can be in the range of 37-42 degreeC which gives.
However, when the weight ratio is 3: 1, on the contrary, the temperature of the inner peripheral surface of the milking mouth rises. Therefore, when the thickness D1 of the covering portion 12 is 1 mm, the test result shown in FIG. It can be seen that the temperature exceeds 42 ° C.
Therefore, if the thickness D1 of the covering portion 12 is 1 to 2 mm, the weight ratio of the silicone resin and the ferrite of the heat generating portion 15 is approximately 6: 1 to 9: 1. It can be seen that it is preferable.
In the case of simply preventing low-temperature burns, it is sufficient if the temperature of the inner peripheral surface of the milking mouth is about 46 ° C. or less, and the thickness of the covering portion 12 is considered in combination with FIG. 6 and FIG. The thickness D1 is about 1-2 mm, the thickness D2 of the heat generating part 15 is about 0.5-1 mm, and the weight ratio of the silicone resin and ferrite of the heat generating part 15 is about 2: 1 (at least 3: 1) to 9: 1. You can see what is possible.

FIG. 9 shows a measurement test of the surface temperature of the covering portion 12, FIG. 9A shows the measurement conditions, and FIG. 9B shows the test result (maximum temperature of the surface temperature of the covering portion).
As shown in FIG. 9, when the thickness D1 of the covering portion 12 is 2 mm, the thickness D2 of the heat generating portion 15 is 1 mm, and the weight ratio of the silicone resin and ferrite of the heat generating portion 15 is 6: 1, the covering portion 12 The surface temperature of itself is 53 ° C.
In this respect, 53 ° C. is a temperature at which low temperature burns continue to be touched by hand for about 2 minutes, and if it is 2 minutes, a removable milking heating tool can be connected to the milking opening, thus preventing low temperature burns. be able to. In addition, when the weight ratio is 9: 1, it can be seen that the surface temperature of the covering portion 12 itself is less than 53 ° C., and thus low temperature burns can be similarly prevented. However, when the weight ratio of the silicone resin to the ferrite is less than 6, in some cases, it is assumed that the heating device for milking cannot be connected to the milking mouth within a time during which low temperature burns can be prevented. . Therefore, it is more preferable that the weight ratio of the silicone resin and the ferrite of the heat generating portion 15 is approximately 6: 1 to 9: 1 also in that the heating device for milking is connected to the milking mouth.
In addition, even if it touches the surface temperature of coating | coated part 12 itself in this way, since the temperature can fully be sensed, when it overheats, a user should mount | wear the milking mouth with the heating tool for milking. It can be let down to prevent breast burns.

  FIG. 10 shows that the thickness D1 of the covering portion 12 is 2 mm, the thickness D2 of the heat generating portion 15 is 1 mm, the weight ratio of the silicone resin and ferrite of the heat generating portion 15 is 6: 1, and heating is performed for 60 seconds in a microwave oven with an output of 500 W. When it does, it is transition data of the temperature of the internal peripheral surface of the milking mouth before and after connecting the heating tool for milking to the milking mouth. In FIG. 10, the breast is actually applied to the milking mouth, and the temperature of the inner peripheral surface of the milking mouth is measured. In addition, point A in FIG. 10 is when a heated milking heater is attached to the milking mouth, point B is when the milking mouth is applied to the breast, and point C is when the milking mouth is temporarily removed from the breast. Point D is when the milking mouth is again applied to the breast, and point E is when milking is finished and the milking mouth is removed from the breast.

  As shown in FIG. 10, the temperature of the inner peripheral surface of the milking mouth before attaching the milking warming tool to the milking mouth was about 25 ° C., but about 60 seconds after heating the milking warming tool The temperature is about 40 ° C. at point B after about 90 seconds from point A attached to the outer peripheral surface of the milking mouth (when the milking mouth is applied to the breast and after about 150 seconds after heating). Then, immediately after the point B when the milking mouth is put on the breast, the temperature is suddenly lowered, so that the temperature of the inner peripheral surface of the milking mouth is taken away by the breast. This is nothing less than a cold feeling when the milking mouth first comes into contact with the breast. In addition, after using the heating device for milking heated at the milking mouth even in usage scenes other than experiments, to start milking by attaching the hood part to the milking machine body or turning the clothes, etc. Since it takes a considerable amount of work time, when the breast is first brought into contact with the milking mouth, the temperature of the inner peripheral surface of the milking mouth (of course, depending on the work speed of the user) is about 36 degrees to the maximum temperature. It can be estimated that the temperature has approximated to. Therefore, when the milking mouth first comes into contact with the breast, it is possible to prevent a feeling of coldness.

Furthermore, as shown in FIG. 10, after the temperature has suddenly dropped from point B where the milking mouth is applied to the breast, the temperature of the inner peripheral surface of the milking mouth rises slightly, and thereafter the inside of the milking mouth It can be seen that the temperature of the peripheral surface decreases slightly as long as it is in contact with the breast, but there is no significant change to the left.
In addition, the C point of FIG. 10 is a point which removed the milking mouth from the breast temporarily, and the temperature of the internal peripheral surface of a milking mouth falls from the C point to the D point which again applied the milking mouth to the breast. Yes. From this, it can be seen that in an actual use situation, the temperature of the breast is also related to the temperature of the inner peripheral surface of the milking mouth. From the point D where the milking mouth is again applied to the breast to the point E where milking is completed, the temperature of the inner peripheral surface of the milking mouth is slightly recovered, and the temperature is generally maintained. In the usage scene other than the experiment, the milking mouth may be temporarily removed from the breast several times as in FIG. 10, but the number of times is small, and the milking mouth is basically kept on the breast. Like the test shown, it rarely falls below the temperature of the breast until milking is complete. At least when the milking mouth is first applied to the breast, the temperature of the inner peripheral surface of the milking mouth has risen to at least the temperature close to the breast, so that no cold feeling is given.

  From the above experimental results, according to the configuration of the first embodiment of the present invention, the heating device 10 for milking heated by the microwave oven shown in FIG. 1 can be connected so as to be in close contact with the outer peripheral surface 18D of the milking port 18. For example, when milking, it can be seen that the contact temperature of the inner peripheral surface 18B of the milking opening 18 to the breast is equal to or higher than the temperature of the breast and the breast does not cause low-temperature burns.

By the way, although the coating | coated part 12 of embodiment mentioned above is formed in the shape corresponding to outer peripheral surface 18D of the milking opening 18 using a silicone resin, this invention is not necessarily restricted to this, For example, FIG. 11 and FIG. 12 showing the first to third modifications of the first embodiment of the present invention may be used.
FIG. 11A is a partial view showing a cross section of the milking warming device 100 according to the first modification of the first embodiment, and corresponds to the circled diagram in FIG. 5.
The covering portion 40 of the milking warming device 100 is formed not only by the member 41 made of silicone resin but also in combination with other components.
That is, the covering portion 40 has a hollow space 42 between its surface (in the figure, the surface on the outer peripheral surface side of the milking mouth) 40 </ b> A and the heat generating portion 15. Since the hollow space 42 is a layer of air and has a thermal conductivity smaller than that of the silicone resin, it exhibits a heat insulation effect and reliably lowers the surface temperature of the covering portion 40, and the temperature at which the breast does not cause low-temperature burns, preferably The contact temperature to the breast can be 37-42 ° C.
And since the hollow space 42 becomes a heat insulating material, the amount of the member 41 made of silicone resin can be reduced, and the weight of the entire covering portion 40 can be reduced.
11A is a combination of silicone resin and air, but the present invention is not limited to this. For example, by increasing the hollow space 42, the thermal conductivity is higher than that of the silicone resin. A combination of a good thermosetting resin (for example, epoxy resin) and the hollow space 42 may be used.

FIG. 11B is a partial view showing a cross section of the milking warming device 101 according to the second modification of the first embodiment, and corresponds to the circled diagram in FIG. 5.
The covering portion 43 of the heating device 101 for milking has a convex portion 45 and a surface 43 </ b> A on the outer peripheral surface 18 </ b> D side of the milking mouth substantially corresponding to the outer peripheral surface 18 </ b> D of the milking mouth. By having the recess 46, a space S is formed between the milking mouth and the outer peripheral surface 18D in a state where the recess 46 is connected.
Therefore, this space S exhibits a heat insulating effect, and the heat transmitted from the heat generating part 15 to the hood part 16 can be reliably reduced. Accordingly, the amount of the silicone resin can be reduced by the amount that the space S has a heat insulating effect, and the weight of the entire covering portion 43 can be reduced.

FIG. 12 is a perspective view of the hood portion 16 to which the milking warming device 102 according to the third modification of the first embodiment is connected.
Although this heating device 102 for milking has the expansion part 12B which spreads outside from the through-hole 8 similarly to embodiment mentioned above, and is arrange | positioned along the substantially trumpet-shaped circumferential direction R of the milking opening 18. The extended portion 12B of FIG. 12 has a discontinuous portion 80 in which a part of the circumferential direction R is discontinuous. This discontinuous portion 80 can be said to be a cutout portion extending from the through hole 8 of the expansion portion 12B to a part of the outer edge portion 24, and is formed at one location.
Then, since the extended portion 12B is formed on the basis of a silicone resin that is an elastic body having flexibility, the dimension in the circumferential direction R of the interrupted portion 80 can be increased by hand. Therefore, even if the food | hood part 16 which is going to connect it is somewhat large, the heating tool 102 for milking can be connected by changing the dimension of the circumferential direction R largely.
Moreover, since the extension part 12B also has elastic force, after connecting the breast pumping mouth by temporarily enlarging the dimension of the circumferential direction R of the interrupting part 80 by hand, the adhesiveness to the milking mouth 18 is enhanced by the elastic force. be able to.
12 is a gap, the present invention is not limited to this. For example, the region of the interrupted portion 80 has higher elasticity than the silicone resin of the covering portion 12. An elastic body may be provided.

[Variation of the breast pump of the first embodiment]
FIG. 13 is a perspective view according to a modification on the milking machine 103 side using the milking warming tool 10 of FIG. 1. In FIG. 13, a part of the milking warming tool 10 is cut out.
In FIG. 13, the portions denoted by the same reference numerals as those used in FIGS. 1 to 12 have a common configuration, and therefore, a duplicate description will be omitted, and the following description will focus on differences.
In this milking machine 103, although the milking warming tool 10 is the same as 1st Embodiment mentioned above, the structure by the side of the milking machine which connected this is different.

That is, the breast pump 103 in FIG. 13 is an electric type, and includes a milking unit 55 and a pump unit 57 as pressure changing means connected to the milking unit 55 by the pipe 44.
The milking unit 55 includes the bottle 11, the hood portion 16, and the breast pump main body 21 to which these can be attached and detached. Since these configurations have already been described except for a temperature sensor 59 provided in the hood portion 16 described later, a description thereof will be omitted.
A pressure transmission unit 54 to which the pressure adjusted by the pump unit 57 is transmitted is detachably connected to the upper portion of the breast pump main body 21. An elastic diaphragm (not shown) is accommodated in the sealed inner space of the pressure transmission part 54. The movement of the diaphragm makes the inside of the hood part 16 negative or releases the negative pressure state. It is.

The pump unit 57 is connected to the pressure transmission unit 54 via a flexible pipe 44. When the switch SW is turned on as a vacuum pump, the pump unit 57 pulls the space in the pressure transmission unit 54 of the milking unit 50 to a negative pressure, or returns the pressure from the negative pressure state to the atmospheric pressure state. Are continuously performed (this becomes a pulsation), thereby moving the diaphragm in the pressure transmission unit 54.
Further, the pump unit 57 shown in the figure is provided with a cycle knob 38 for adjusting the period of pulsation in forming negative pressure and a knob 37 for adjusting the pressure of negative pressure.
The switch SW, the cycle knob 38, and the knob 37 are electrically connected to a control unit 60 in the pump unit 57. The control unit 60 is a vacuum pump (not shown) according to the operation of the switches SW, 37, and 38. Is to control.
The control unit 60 controls the overall operation, and uses, for example, a one-chip microcomputer, and has a ROM (Read Only Memory), a RAM (Random Access Memory), a nonvolatile memory, and a clock. ing.

Here, the hood part 16 has a temperature sensor 59 in a region to which the milking warming tool 10 is connected (in the case of the drawing, the outer peripheral surface 18D of the milking port 18 and the region facing the heat generating part). Yes. The temperature sensor 59 is a thermometer that measures the temperature of the surface on the milking mouth 18 side of the heating device 10 for milking (that is, the inner surface 12D of the covering portion 12 shown in FIG. 5), and is a thermistor thin film temperature sensor. It is possible to use a known sensor such as.
And the milking machine 103 is provided with the alerting | reporting part 22 which alert | reports to a user that it is more than the temperature which causes the low-temperature burn of a breast based on the signal SG from the temperature sensor 59. FIG. In the drawing, the notification unit 22 is a display unit made of an LED, liquid crystal, or the like provided in the pump unit 57.
Specifically, the signal SG from the temperature sensor 59 is transmitted to the control unit 60 in the pump unit 57 (not shown, but the data signal SG passes through the signal line in the pipe 44. Transmitted to the control unit 60). The control unit 60 that has received the signal SG determines whether to drive the notification unit 22 based on the data table written in the ROM. In the data table, “temperature of the inner surface of the covering portion” in FIG. 6 and data corresponding to “temperature of the inner peripheral surface of the milking mouth” in FIG. 6 are stored. When the “temperature of the inner surface of the covering part” exceeds 59 ° C., it is judged that the “temperature of the inner peripheral surface of the milking mouth” exceeds 46 ° C. A signal is sent to the display unit driver 69 so as to be displayed on the 13 display units 37, and the display unit driver 69 drives the notification unit 22 based on the command.

The milking device 103 of this modification is configured as described above, and the heating device 10 for milking can be used not only for the manual type but also for the electric type milking device. Even if the breast heating device 10 is heated too much, the temperature sensor 59 can detect it and notify the user by the notification unit 22. That is, in order for the contact temperature to the breast through the milking mouth to be equal to or lower than the temperature causing low-temperature burns, as described above, the plate-like heat generating portion is obtained by blending ferrite with silicone resin. The weight ratio of ferrite to ferrite is about 2: 1 to 9: 1, the thickness of the heat generating part is 0.5 to 3 mm, and the thickness from the heat generating part to the inner surface of the covering part is 0.5 to 3 mm. . In this regard, in order to prevent low-temperature burns with this configuration, for example, in the case of a 500 W microwave oven, it is necessary to set the heating time to about 30 to 90 seconds. However, this usage condition may not be able to be observed depending on the user, in which case there is a risk of low temperature burns (including burns). Therefore, when the temperature sensor 59 reaches a required temperature that causes low-temperature burns, the notification unit 22 notifies the user of this fact.
In addition, although the alerting | reporting part 22 is made into the display part in FIG. 13, this invention is not restricted to this, The alerting | reporting part 22 is made into a buzzer or a speaker, and a user is sounded based on the detection result of the temperature sensor 59. You may be informed of the danger.

[Second Embodiment]
14 is a perspective view of the hood 104 having the milking warming device 10 according to the second embodiment of the present invention, and FIG. 15 is a cross-sectional view taken along line AA of FIG.
In these drawings, the portions denoted by the same reference numerals as those used in FIG. 1 to FIG. 13 have the same configuration, and therefore, a duplicate description will be omitted, and the differences will be mainly described below.
14 and 15 is different from the embodiment described above in that the milking warming tool 10 is fixed.

That is, the hood part 104 integrally forms the “milking opening 18 and the cylindrical part 19” and the “milking heating tool 10”, which are different materials, by two-color molding, so that the milking heating tool 10 is formed. Is connected to the milking mouth 18 inseparably.
Specifically, the milking warming device 10 is similar to the configuration described in the first embodiment, in which the heat generating portion 15 is a silicone resin blended with ferrite and a thermosetting resin (for example, covering the entire heat generating portion 15). (Silicone resin) covering portion 12, and the portion of the covering portion 12 is formed by milking mouth 18 and two-color molding. For the heat generating part 15, for example, a space capable of accommodating the heat generating part 15 in the covering part 12 and a cut (not shown) connected to the space are formed, and the heat generating part 15 is connected to the inside of the covering part 12 from the cut. After being inserted into the space, the cut may be closed by bonding or the like.
The milking mouth 18 and the cylindrical portion 19 may be a thermoplastic resin such as polypropylene as in the first embodiment. However, if the heating device 10 for milking is heated too much, the thermoplastic resin melts. There is also a fear. For this reason, it is preferable to form the milking mouth 18 and the cylindrical part 19 from a thermosetting resin.

This 2nd Embodiment is comprised as mentioned above, Therefore, the effort which connects the heating tool 10 for milking to the food | hood part 104 is not required, and milking can be started more simply and rapidly. Moreover, the positioning means 77 shown in FIG. 1 is unnecessary in the hood part 104 of the second embodiment.
In addition, in FIG. 15, although the heating tool 10 for milking and the milking opening 18 are being fixed by two-color molding, you may fix with an adhesive (in the case of using an adhesive, of the coating | coated part 12 mentioned above) No break is needed).

[Third Embodiment]
FIG. 16 is a schematic longitudinal sectional view in which the milking warming device 105 according to the third embodiment of the present invention is connected to the hood portion 16 and cut in the longitudinal direction. 16 is an enlarged cross-sectional view around the heat generating portion 65 and the covering portion 66. Except for this enlarged cross-sectional view, the parallel oblique lines indicating the cross-section are omitted in FIG.
In FIG. 16, the portions denoted by the same reference numerals as those used in FIG. 1 to FIG. 15 have a common configuration, and thus a duplicate description will be omitted, and the following description will focus on the differences.
The milking warming device 105 of FIG. 16 is different from the above-described embodiment in that it is arranged on the inner peripheral surface 18B of the milking mouth 18.

That is, the material of the heat generating part 65 and the covering part 66 in the heating device 105 for milking in FIG. 16 is basically the same as that of the heat generating part 15 and the covering part 12 in FIGS. Is different.
Specifically, the heat generating portion 65 in FIG. 16 is made of a flexible member in which ferrite is blended based on a silicone resin, and the covering portion 66 is made of a flexible elastic body made of silicone resin. The milking warming device 105 including 65 and the covering portion 66 has a structure arranged on the inner peripheral surface 18B of the milking opening 18 so that the breast directly contacts the covering portion 66.
In the milking warming device 105 of FIG. 16, the milking mouth 18 has a substantially trumpet shape generally along the shape of the inner peripheral surface 18 </ b> B of the milking mouth 18 on the enlarged diameter portion 18 </ b> C side of the milking mouth 18. It is attached so that it may enter inside milking mouth 18 so that it may have predetermined space S4 between.
Further, the milking warming device 105 is provided on the side of the areola with the through hole 75 into which the nipple is inserted and the enlarged diameter portion 18C side than the through hole 75 in a state where the breast of the user is brought into contact. A concentric projecting portion that protrudes toward the breast, and is provided on the side of the enlarged diameter portion 18C from the areola contact portion 78 that contacts the user's areola, and protrudes toward the breast. It has a concentric protrusion that is a breast contact portion 79 that is in close contact with the breast of the user.

  Therefore, the milking warming device 105 can also serve as a milking mouth cover. That is, when the breast is sucked into the breast pump, it becomes a cushion and can relieve pain. Further, even if the milking mouth 18 and the shape of the breast do not match, the breast and the covering portion 66 of the milking warming device 105 are surely brought into close contact with each other so that the space around the nipple is made negative pressure and milking is performed. it can. In addition, in the case of the present embodiment, since the areola is in contact with the areola in the state where the breast is received in the covering portion 66, the breast milk is sucked out by the suction force due to the negative pressure. When the areola contact portion 78 effectively pushes the areola, the milk can be improved. Then, the breast contact portion 80 is in close contact with the breast in a planar shape and sealed, thereby preventing leakage of negative pressure to the outside and effectively preventing leakage of breast milk to the outside.

  Such a milking warming device 105 is detachably connected to the outer edge 24 of the milking port 18. In the case of the figure, a mounting portion 76 having a narrow groove-shaped portion 74 is provided on the outer surface of the covering portion 66, and the outer edge portion 24 opened in a trumpet shape of the milking mouth 18 is fitted into the groove-shaped portion 74. Installed. In addition, since the coating | coated part 66 has predetermined | prescribed flexibility and elasticity, it is possible to turn this attachment part 74 outward with a finger | toe, and, thereby, the heating tool 105 for milking can be turned off from the milking mouth 18. Can be removed.

Here, in the covering portion 66, the dimension D4 in the thickness direction from the heat generating portion 65 to the inner surface 80 in contact with the breast is larger than the dimension D1 in the thickness direction in FIG. 5, for example, about 4 mm or more. Further, the dimension D5 in the thickness direction of the heat generating portion 65 in FIG. 16 is equal to or less than the dimension D2 in FIG. 5 and is 0.5 mm or less. In this manner, the inner surface 80 of the covering portion 66 in FIG. 16 is set to a temperature (about 46 ° C.) or lower that does not cause low-temperature burns even if it directly contacts the breast, and further enhances cushioning when the breast contacts. ing.
Note that the dimension D4 from the heat generating portion 65 to the inner surface 80 of the covering portion 66 is not limited to the above dimensions. For example, the heat generating portion 65 is heated by setting the weight ratio of the silicone resin and ferrite of the heat generating portion 65 to 9: 1. By making it difficult, the dimension D4 may be suppressed to prevent an increase in weight. However, since reducing the dimension D4 reduces the cushioning property of the covering portion 66, it is preferable to reduce the dimension D4 in the thickness direction from the outer surface 81 opposite to the inner surface 80 of the covering portion 66 to the heat generating portion 65. The dimension D6 is preferably made smaller than the dimension D4, thereby preventing a significant increase in the weight of the milking warming device 105 even if the dimension D4 is large.
In addition, it is preferable to use a silicone resin having a JIS hardness of about 20 to 80 for the covering portion 66, so that a preferable elasticity can be exhibited when the breast comes into contact.

By the way, this invention is not limited to the said embodiment, The separate structure of the above-mentioned embodiment may be abbreviate | omitted as needed, or may be combined with the other structure which is not demonstrated.
For example, the milking warming device 105 of FIG. 16 may be connected and fixed to the hood portion 18.
In the above-described embodiment, the covering portion is a member for preventing low temperature burns, but of course, burns other than low temperature burns can also be prevented.

  10, 100, 101, 102, 104, 105 ... heating device for milking, 12, 40, 43, 66 ... covering portion, 8 ... through hole, 12B ... expansion portion, 15, 65 ... Heat generating part, 16 ... Food part, 18 ... Milking mouth, 18B ... Inner peripheral surface of milking mouth, 18D ... Outer peripheral surface of milking mouth, 19 ... Cylindrical part, 21 ... Milking machine body, 59 ... Temperature sensor

Claims (11)

A milking warming device that is connected to a milking mouth that covers the breast during milking and has a heating part that generates heat at a temperature higher than the milking mouth,
The heat generating part has a ferrite that absorbs microwave energy and generates heat,
By coating the heat generating part with a thermosetting resin, the temperature of contact with the breast through the milking mouth or directly during milking is equal to or higher than the temperature of the breast and does not cause low-temperature burns. A heating unit for milking, characterized in that it has a covering part that reduces the temperature transmitted from the heat generating part to the breast.   The milking warming device according to claim 1, wherein the covering portion is disposed on the outer peripheral surface of the milking mouth opposite to the inner peripheral surface with which the breast comes into contact. The surface temperature of the covering portion on the side opposite to the milking mouth side is equal to or higher than the contact temperature, and is not more than a temperature at which the milking heating tool that has generated heat appropriately does not cause low-temperature burns by touching the hand. The milking warming device according to claim 2, wherein: The covering portion is made of silicone resin, and the dimension in the thickness direction from the heat generating portion to the surface on the outer peripheral surface side is approximately 1 to 2 mm.
The heat generating part is a plate-like body having a thickness of about 0.5 to 1 mm in which the ferrite is blended with a silicone resin.
The milking warming device according to claim 2 or 3, wherein a weight ratio of the silicone resin and the ferrite constituting the heat generating portion is approximately 6: 1 to 9: 1. The covering portion has a through-hole through which a cylindrical portion that is attached to and detached from the breast pump main body of the substantially funnel-shaped hood portion having the milking mouth, and an extended portion that extends outward from the through-hole,
The said expansion part is made into the shape corresponding to the outer peripheral surface of the said milking opening. The heating tool for milking in any one of Claims 1-4 characterized by the above-mentioned.   The milking warming device according to claim 5, wherein positioning means for locking and positioning with the covering portion is formed on an outer peripheral surface of the milking mouth.   The said expansion part is arrange | positioned along the substantially trumpet-shaped circumferential direction of the said milking opening, and a part of the said circumferential direction has interrupted, The heating for milking of Claim 5 or 6 characterized by the above-mentioned. Ingredients.   The said heating part is an elastic body, Comprising: It arrange | positions at the internal peripheral surface of the said milking opening, The heating tool for milking of Claim 1 characterized by the above-mentioned. The milking mouth to which the heating device for milking according to any one of claims 1 to 8 is connected,
A breast pump body having a breast pump body for making the space surrounded by the milking mouth a negative pressure.   The milking device according to claim 9, wherein the milking warming device is connected to the milking port so as not to be separated. The milking mouth has a temperature sensor in a region where the heating device for milking is connected,
The breast pump according to claim 9 or 10, wherein a notifying unit is provided for notifying a user that the temperature is higher than a temperature causing a low-temperature burn of the breast based on a detection result of the temperature sensor. .

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