JPH08308870A - Medical cooling system and cooling mat for use in this system - Google Patents

Abstract

PURPOSE: To automatically and stably perform continuous cooling, and eliminate labor of a nurse by forming a cooling water circulating passage by connecting cooling water passages in cooling mats and a water tank housing cooling water to each other by a passage means, and forcedly circulating the cooling water by a water pump. CONSTITUTION: When a medical cooling system 2 is used, cooling mats 24 and 26 are contacted with a cooling object part of the human body, and for example, the cooling mat 24 is wound round and installed on a head part, and the cooling mat 26 is wound round and installed on a neck, respectively. Next, when a water pump 14 is driven in rotation, cooling water in a water tank 10 is forcedly circulated in a cooling water circulating passage and a cooling water circulating branch passage. The cooling water whose temperature is adjusted by a water cooler 12 is continuously flowed in cooling water passages 32 and 38 in the cooling mats 24 and 26, and the cooling mats 24 and 26 are not influenced by a bodily temperature, and are held at an almost constant temperature. Therefore, even if the cooling object part is continuously cooled, the cooling water can be prevented from rising in the temperature by a bodily temperature.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a medical cooling device and a cooling mat used in the device, which are applied when continuously cooling a desired part to be cooled in a human body.

[0002]

2. Description of the Related Art When continuously cooling a desired part to be cooled in the human body, such as the head (forehead, temple, etc.), neck, arm, etc., conventionally, at home or in a hospital, a water pillow or an ice pillow is used. , Cooling bags for medical use such as ice sac, Icenon (trademark) are used.

[0003]

SUMMARY OF THE INVENTION These cooling tools are
Although the low temperature is maintained at the beginning of use, the temperature rises due to body temperature over time. That is, since none of these cooling tools can keep the cooling temperature constant during use, stable cooling cannot be continuously performed. Further, the cooling tools cannot adjust their own cooling temperature to a desired temperature before use. Therefore, also in this aspect, it can be said that stable cooling is extremely difficult.

As described above, since the temperature of each cooling tool rises with the lapse of usage time, the content of the cooling medium (water, ice, etc.) is replaced at a certain point after use, Or it had to be replaced with a spare cooling tool, which required a lot of labor for the nurse. Particularly in a medical institution such as a hospital, many patients need to be cared for, so that the labor and burden of the nurse becomes even greater. Further, it is necessary to cool the used cooling tool again to prepare for the next use, which requires time and effort. In a hospital or the like, it is necessary to prepare a large number of spare cooling tools and to cool them so that they can be used at all times, and the burden on management is not small.

A first object of the present invention is to provide a novel medical cooling device which can automatically and stably carry out continuous cooling and can significantly save labor of a nurse. .

A second object of the present invention is to provide a cooling mat for use in a novel medical cooling device, which can be suitably used in the medical cooling device for achieving the first object. is there.

[0007]

In order to achieve the first object, in the present invention, a cooling water flow path in a cooling mat and a water tank containing cooling water are connected by a flow path means for cooling. A water circulation channel is formed and cooling water is forcedly circulated by a water pump. That is, according to the present invention, a water tank containing cooling water and a cooling mat for cooling a cooled portion of a human body having a cooling water passage having a cooling water inlet and a cooling water outlet formed therein are provided. A cooling water circulating flow in which the cooling water inlet of the cooling mat and the water tank are connected by a cooling water supply flow path, and the cooling water outlet of the cooling mat and the water tank are connected by a cooling water discharge flow path. There is provided a medical cooling device, characterized in that a channel is formed and cooling water is forcedly circulated by a water pump provided in the cooling water circulation channel.

In the above structure, a second cooling mat having therein a cooling water passage having a cooling water inlet and a cooling water outlet is provided, and the cooling water inlet of the second cooling mat is supplied to the cooling water. A cooling water circulation branch flow connected to a cooling water supply branch flow path branched from the flow path and connecting the cooling water outlet of the second cooling mat to a cooling water discharge branch flow path that joins the cooling water discharge flow path. It is preferable that the passage is formed in parallel with the cooling water circulation passage.

In the above structure, it is preferable that the cooling water is adjusted to a predetermined temperature by a water cooler.

In the above structure, it is preferable that a plurality of partition walls are formed at intervals in the cooling water flow path of each of the cooling mats.

In order to achieve the second object, in the present invention, a plurality of synthetic resin sheet members are superposed and welded to each other to form a cooling water flow path between the surface layer sheet member and the second layer sheet member. To do. That is, according to the present invention, a cooling mat for cooling a cooled portion of a human body, which includes a plurality of synthetic resin sheet members integrally formed by welding a predetermined welded portion on top of each other, is formed. The predetermined weld portion includes a peripheral weld portion that defines a peripheral portion of the cooling mat, and a surface layer sheet member exposed to the outside of the sheet member, and a second layer sheet member superposed on the surface layer sheet member. And a cooling water flow path is defined by a space substantially surrounded by the peripheral welding portion, and the cooling water flow passage has a cooling water inlet and a cooling water outlet formed through the peripheral welding portion. A cooling mat for use in a medical cooling device is provided.

In the above structure, the predetermined welded portion includes a plurality of inner welded portions surrounded by the peripheral welded portion and spaced from each other, and a plurality of partition walls are formed in the cooling water flow path. Preferably, each of the partition walls is defined by each of the inner welds. Each of the partition walls extends substantially parallel to one virtual straight line that crosses the cooling mat when the cooling mat is viewed from a plane, and the cooling water inlet and the cooling water outlet are parallel to the virtual straight line. It is preferred that they extend substantially parallel.

In the above structure, it is convenient that the main body includes a substantially rectangular main body and a pair of overhanging portions that extend laterally outwardly from one side portion in the width direction of the main body portion. is there.

In the above structure, the sheet members welded to each other include a third layer sheet member polymerized with the second layer sheet member, and the surface layer sheet member and the second layer sheet member are each made of soft vinyl chloride. Formed of a film, the third layer sheet member is formed of a foamed vinyl chloride film, and the fourth layer sheet member is superposed on the third layer sheet member.
It is preferable that the fourth layer sheet member is adhered and the fourth layer sheet member is formed of a foamed polyethylene sheet. The thickness of each of the surface layer sheet member and the second layer sheet member is 0.2 mm, and the thickness of the third layer sheet member is 0.4 mm.
mm, and the thickness of the fourth layer sheet member is 2.0 mm to
It is preferably 3.0 mm. The cooling water inlet and the cooling water outlet are defined by tubes that penetrate between the surface layer sheet member and the second layer sheet member and are welded to them, and the tubes are made of soft vinyl chloride. , Is convenient.

[0015]

According to the apparatus of the present invention for achieving the first object, the cooling water in the cooling water flow passage in the cooling mat can be forcedly circulated between the cooling tank and the water tank. Even if the desired cooled portion of the human body is continuously cooled by utilizing it, the cooling water in the cooling mat is prevented from rising due to the body temperature. Therefore, continuous cooling can be automatically and stably performed. Moreover, since it is no longer necessary to replace the cooling mat one by one as in the conventional case, the labor of nursing is significantly reduced. Further, since the cooling mat is cooled only by operating the water pump, there is no need to cool a cooling tool as in the conventional case, and labor saving can be achieved in this respect as well. Further, in a hospital or the like, it is not necessary to prepare a large number of cooling tools as in the conventional case, and the management load is reduced.

The apparatus of the present invention is provided with a second cooling mat having therein a cooling water passage having a cooling water inlet and a cooling water outlet, and the cooling water inlet of the second cooling mat is connected to the cooling water supply passage. From the cooling water supply branch passage and the cooling water outlet of the second cooling mat is connected to a cooling water discharge branch passage which joins the cooling water discharge passage, and the cooling water circulation branch passage is connected to the cooling water outlet branch passage. When it is configured to be formed in parallel with the water circulation flow path, each cooling mat is used to
Where it is possible to cool the head and neck at the same time,
Efficient cooling can be achieved. The basic operation and effect of the present invention, which is provided with two cooling mats in parallel, is as follows.
It is clear that the cooling mat described above is substantially the same as one device, so the description is omitted.

In the apparatus of the present invention, when the cooling water is adjusted to a predetermined temperature by the water cooler,
The temperature of the cooling water can be adjusted as needed, and continuous cooling can be performed more stably.

In the apparatus of the present invention, when a plurality of partition walls are formed at intervals in the cooling water flow path of the cooling mat, a large number of flow paths are formed between the partition walls, so that cooling is performed. The performance is improved, and even if a load, for example, a load by the head acts, the flow path is prevented from being blocked thereby, and the cooling function is secured. Therefore, continuous cooling is stably performed.

According to the cooling mat of the present invention for achieving the above-mentioned second object, since it includes a plurality of synthetic resin sheet members integrally formed by being overlapped with each other and welded to each other, the whole is relatively It can be thinly formed, is lightweight, flexible, and easy to bend, has excellent conformability to the shape of a desired cooled portion (cooled portion) of the human body, and is convenient to handle. Also, due to the welding, the molding is easy and the sealing property against water leakage is high. Since the surface layer sheet member in which the cooling water flows inside can be used in a form of directly contacting the cooled portion of the human body, cooling can be efficiently performed. Therefore, the cooling mat of the present invention can be suitably used for the medical cooling device.

The predetermined welded portion includes a plurality of inner welded portions which are surrounded by the peripheral welded portions and are spaced apart from each other, and a plurality of partition walls are formed in the cooling water passage, each partition wall being an inner welded portion. In the case of the configuration defined by each of the parts, a large number of flow paths are formed between each partition wall (inner welding portion) and the partition wall, so that the cooling performance is improved and the load is applied. As a result, the flow path is not blocked and the cooling function is ensured. Therefore, continuous cooling is stably performed. The presence of the plurality of inner welded portions improves the strength of the entire cooling mat. Further, in this configuration, each of the partition walls (inside welded portion) extends substantially parallel to one virtual straight line that crosses the cooling mat when the cooling mat is viewed from a plane, and the cooling water inlet and the cooling water outlet are virtual. When the cooling mat is configured to extend substantially parallel to the straight line, it becomes easy to bend the cooling mat around the axis in the direction in which each of the partition walls extends. That is, each of the partition walls also has a function of giving the cooling mat a curved direction. For this reason, it is extremely easy to put on the human body and is practically convenient.

The cooling mat of the present invention is configured so as to include a substantially rectangular main body portion and a pair of overhanging portions which extend laterally outwardly from one side portion in the width direction of the main body portion. In this case, the main body can be used for cooling the forehead, and the pair of overhanging portions can be used for cooling the temples, and the head can be efficiently cooled by one cooling mat. .

In the cooling mat of the present invention, the sheet members welded to each other include the third layer sheet member polymerized to the second layer sheet member, and the surface layer sheet member and the second layer sheet member are each made of a soft vinyl chloride film. Formed 3
When the first layer sheet member is formed of a foamed vinyl chloride film, the fourth layer sheet member is polymerized and adhered to the third layer sheet member, and the fourth layer sheet member is formed of a foamed polyethylene sheet In this case, since the surface soft vinyl chloride film through which the cooling water flows can be used in the form of directly contacting the cooled portion of the human body, cooling can be efficiently performed. In addition, the third layer sheet member is formed of a foamed vinyl chloride film,
Condensation due to cooling is reliably prevented by forming the layered sheet member from a foamed polyethylene sheet. Therefore, the surroundings are not wetted, and the time and effort for wiping can be saved, and the handling becomes easy. The thickness of the surface layer sheet member and the thickness of the second layer sheet member are each 0.2
mm, the thickness of the third layer sheet member is 0.4 mm, and the thickness of the fourth layer sheet member is 2.0 mm to 3.0 mm.
With such a configuration, the various effects described above can be achieved more reliably. Since the fourth layer sheet member is formed to be considerably thicker than other sheet members,
The shape of the entire cooling mat is firmly retained while maintaining flexibility, which makes handling significantly easier. Further, the cooling water inlet and the cooling water outlet are defined by the tubes penetrating between the surface layer sheet member and the second layer sheet member and welded thereto, and the tube is formed of soft vinyl chloride. The cooling water inlet and the cooling water outlet can be easily integrally formed, and the cooling water can be surely prevented from leaking.

[0023]

EXAMPLES Examples and uses of the medical cooling device improved according to the present invention and the cooling mat used in the device will be described below with reference to FIGS. 1 to 9
In the above, the same parts are denoted by the same symbols. Referring to FIG.
In the medical cooling device indicated by the whole number 2, 4 is a mobile water chiller unit, and the whole has a box shape,
A plurality of wheels 6 are mounted on the bottom portion thereof. Inside the chiller unit 4, a water tank 10 containing cooling water is provided.
The water cooler 12 and the water pump 14 are arranged.
A water cooler 12 known to those skilled in the art can cool the cooling water in the water tank 10 and can adjust the temperature of the cooling water within a predetermined range, for example, 5 ° to 13 °. 16 is a suction pipe, one end of which is a water tank 1
It opens in 0 and the other end is connected to the suction port 14 a of the water pump 14. The discharge port 14b of the water pump 14 is connected to a cooling water inlet 22a of a branch joint 22 provided in the manifold 20 via a cooling water supply tube 18.

The medical cooling device 2 is a cooling mat 24 which is a first cooling mat for cooling the cooled part of the human body.
And a cooling mat 26 which is a second cooling mat. A cooling water passage 32 having a cooling water inlet 28 and a cooling water outlet 30 is formed inside the cooling mat 24. In the cooling water channel 32, a plurality of partition walls 33 are formed at intervals. In addition, the cooling mat 26,
A cooling water passage 38 having a cooling water inlet 34 and a cooling water outlet 36 is formed therein. In the cooling water channel 38, a plurality of partition walls 39 are formed at intervals. The structure of the cooling mats 24 and 26 will be described in detail later.

Branch joint 2 of the manifold 20
One of the cooling water outlets 22b of 2 and the cooling water inlet 28 of the cooling mat 24 are connected via a cooling water supply tube 40, and the other cooling water outlet 22c of the branch joint 22 and the cooling water inlet 34 of the cooling mat 26 are connected. Are connected via a cooling water supply tube 42. Further, the cooling water outlet 30 of the cooling mat 24 and one cooling water inlet 44a of the other branch joint 44 provided in the manifold 20 are connected via a cooling water discharge tube 46, and the cooling water outlet 36 of the cooling mat 26 is connected. And manifold 20 branch joint 4
The other side 44b of the cooling water inlet 4 is the cooling water discharge tube 4
8 are connected. The cooling water outlet 44c of the branch joint 44 of the manifold 20 and the water tank 10 are connected via a cooling water discharge tube 49. One end of the cooling water discharge tube 49 opens into the water tank 10.

The water tank 10, the water pump 14, the cooling water supply tube 18, the branch joint 22, the cooling water supply tube 40, the cooling mat 24 (the cooling water flow passage 32), the cooling water discharge tube 46, the branch joint 44 and the cooling water. A cooling water circulation flow path is formed by the discharge tube 49 and the like.
In this circulation passage, the cooling water supply tube 18, the branch joint 22, the cooling water supply tube 40, and the like define the cooling water supply passage. Also, the cooling water discharge tube 4
6, the branch joint 44, the cooling water discharge tube 49, etc. define the cooling water discharge flow path.

On the other hand, the branch joint 22, the cooling water supply tube 42, the cooling mat 26 (the cooling water flow path 38 thereof), the cooling water discharge tube 48, the branch joint 44, etc.
A cooling water circulation branch channel is formed. The cooling water circulation branch passage is parallel to the cooling water circulation passage. In this branch channel, the branch joint 22 and the cooling water supply tube 42 form a cooling water supply branch channel. The cooling water discharge tube 48, the branch joint 44, and the like define a cooling water discharge branch flow path.

In using the medical cooling device 2, first, the cooling mats 24 and 26 are brought into contact with the part to be cooled of the human body. For example, the cooling mat 24 is attached around the head and the cooling mat 24 is attached around the neck. Next, when the water pump 14 is driven to rotate, the cooling water in the water tank 10 is forcibly circulated in the cooling water circulation passage and the cooling water circulation branch passage. Cooling water, the temperature of which is adjusted by the water cooler 12, is continuously flowed through the cooling water passages 32 and 38 in the cooling mats 24 and 26, respectively. Therefore,
The cooling mats 24 and 26 are maintained at a substantially constant temperature without being affected by the body temperature. Further, since a large number of partition walls 33 and 39 are formed in the respective cooling water flow paths 32 and 38, and a large number of flow paths are formed thereby, the cooling performance is improved.

Next, the structure of the cooling mats 24 and 26 will be described in detail. In this embodiment, cooling mat 24 is used to cool the head and cooling mat 26 is used to cool the neck. Although the cooling mats 24 and 26 have different shapes due to the difference in the use place, the cooling mats 24 and 26 have substantially the same configuration. Therefore, the configuration of the cooling mat 24 will be described below with reference to FIGS. 2 to 8.

First, referring to FIG. 2, the cooling mat 24 is
The main body 50 having a substantially rectangular shape when viewed from a plane, and the main body 50
A pair of overhanging portions 52 and 54 extending laterally outward from one side portion in the width direction (vertical direction in FIG. 2) with a gap in the longitudinal direction (horizontal direction in FIG. 2) from each other. Referring to FIGS. 3 and 4 together with FIG. 2, a plurality of (three in the embodiment) synthetic resin sheets, which are integrally formed by superposing the cooling mats 24 and welding predetermined welding portions, to each other. Members 60, 62 and 64, and 1 further polymerized and adhered thereto
And a sheet member 66 made of synthetic resin. In FIG. 4, reference numeral 68 indicates an adhesive portion between the sheet members 64 and 66, and the adhesive portion 68 is a double-sided adhesive tape in the embodiment. Of the sheet members, the three sheet members integrally welded to each other are the surface layer sheet members 6 exposed to the outside.
0, the second layer sheet member 62 superposed on the surface layer sheet member 60, and the third layer sheet member superposed on the second layer sheet member 62. 3 and 4, for convenience of explanation, illustration of the welded portion between the sheet members 60, 62 and 64 is omitted, and only the laminated state is shown.

The surface layer sheet member 60 and the second layer sheet member 62 are each made of a soft vinyl chloride film having a thickness of 0.2 mm, which is sold by Maruto Chemical Co., Ltd. under the trade name "Gang". . The third layer sheet member 64 is a foamed vinyl chloride film having a thickness of 0.4 mm, which is sold by Maruki Chemical Co., Ltd. under the trade name “Tornado”. These sheet members are integrally welded in a predetermined welding portion in a state where they are superposed on each other. The predetermined welded portions include a peripheral welded portion 70 (see FIG. 2) that defines a peripheral edge portion of the cooling mat 24, and a peripheral welded portion 7.
Inner welds 7 surrounded by 0s and spaced from one another
Includes 2 and. Each of the inner weld portions 72 extends substantially parallel to one virtual straight line L that traverses the cooling mat 24 when the cooling mat 24 is seen in a plan view, as can be easily understood from FIG. 2.

Surface layer sheet member 60 and second layer sheet member 6
The cooling water passage 32 is defined by the space (gap) between the cooling water passage 32 and the peripheral welding portion 70 substantially surrounded by the peripheral welding portion 70.
Is a cooling water inlet 28 formed by penetrating the peripheral edge welded portion 70.
And a cooling water outlet 30. The cooling water inlet 28 and the cooling water outlet 30 are defined by tubes 74 and 76 penetrating between the surface layer sheet member 60 and the second layer sheet member 62 and welded thereto. Each tube 7
4 and 76 are sold under the trade name "transparent vinyl tube" by Plastec Co., Ltd. and have an outer diameter of 9.0.
A soft vinyl chloride tube having a diameter of 7.0 mm and an inner diameter of 7.0 mm is used. Each of the inner welded portions 72 of the cooling water channel 32 has a partition wall 33 (FIG. 1) that partially blocks the cooling water channel 32.
See also). In other words, a plurality of partition walls 33 are formed in the cooling water flow channel 32, and each partition wall 33 is defined by each inner weld portion 72. The tubes 74 and 76 that define the cooling water inlet 28 and the cooling water outlet 30 extend substantially parallel to the virtual straight line L, respectively. Three
A fourth layer sheet member 66 is attached to the lower surface of the fourth layer sheet member 64 (see also FIGS. 7 and 8). The fourth layer sheet member 66 is sold by Inoac Corporation under the trade name “PE light” and has a thickness of 2.0.
A foamed polyethylene sheet of mm to 3.0 mm is used. As shown in FIGS. 2 to 4, Velcro tapes M are attached to both ends of the cooling mat 24 in the longitudinal direction and the lower surface of the fourth layer sheet member 66 in each of the projecting portions 52 and 54. ing. As the magic tape, one sold under the trade name "Magic Tape" by Kuraray Co., Ltd. is used.

Next, an embodiment of the method for manufacturing the cooling mat 24 will be briefly described. Referring to FIGS. 5 and 6, the surface layer sheet member 60, the second layer sheet member 62, and the third layer sheet member 64, which are cut into a predetermined shape, are superposed on each other on a flat base 80. Placed on. A predetermined peripheral edge portion 2 between the surface layer sheet member 60 and the second layer sheet member 62
Tubes 74 and 76 are arranged at the locations. A band 78 made of soft vinyl chloride is arranged on the upper portion of each of the tubes 74 and 76 with the surface layer sheet member 60 interposed therebetween. It is preferable that these welding target members are temporarily bonded in advance to required positions in order to maintain their set positions. Next, the electrode 82 of the high-frequency sealer is dropped from the upper part, and the members to be welded in the stacked state are stopped while being pressed against the upper surface of the base 80. Although not shown, an insulator made of, for example, a synthetic resin film is arranged on the upper surface of the base in advance. The lower end portion of the electrode 82 has a shape corresponding to the peripheral welding portion 70 and the inner welding portion 72, which are predetermined welding portions. By applying a high frequency voltage to the electrode 82, the predetermined welded portion is welded and sealed. After the application of the high frequency voltage is stopped, the electrode 82 is raised. This completes the welding process. Next, the fourth layer sheet member 66 is bonded to the lower surface of the third layer sheet member 64. That is, a double-sided adhesive tape is attached to the entire upper surface of the fourth-layer sheet member 66 cut into a predetermined shape, and the lower surface of the third-layer sheet member 64 is superposed and pressed on the upper surface of the double-sided adhesive tape to be adhered to each other. (See FIGS. 7 and 8).
Velcro tapes M are attached to the predetermined locations on the lower surface of the fourth layer sheet member 66, respectively. With the above, the manufacturing process is completed together with the bonding process.

The cooling mat 26 is also the cooling mat 24 described above.
And has substantially the same configuration. 4 of cooling mat 26
One end in the longitudinal direction on the lower surface of the layer sheet member 66,
And a position near the other end of the velcro M
Is attached (not shown). Cooling mats 24 and 2
Reference numeral 6 denotes a form shown in FIG. 1, which is incorporated in the medical cooling device 2 and is preferably used in a form shown in FIG. 9 as an example.
Referring to FIG. 9 together with FIG. 1, reference numeral 90 indicates a medical bed, and the water chiller unit 4 is arranged near the end of the bed 90 (not shown). A dome 92 is provided on the top of the bed 90. The dome 92 is a part of a thermotherapy device (not shown) for treating the affected area by heating the lower part of the human body from the neck.
The neck and lower part of the person lying at 0 is covered by the dome 92. The inside of the dome 92 is heated to a predetermined temperature by blowing hot air, which is a heating medium, for example. Although the thermotherapy device raises the temperature of the blood of the human body, in order to prevent the temperature of the blood of the head from rising excessively, the cooling mat 24 cools the head, that is, the forehead and temples, and also cools it. The mat 26 is applied for cooling around the neck.

The cooling mats 24 and 26 are mounted around the head and neck so that the surface layer sheet member 60 contacts the human body side. The cooling mat 24 is mounted so as to be wound around the head so that the main body 50 of the cooling mat 24 contacts the forehead and the projecting portions 52 and 54 contact the temples. The fourth layer sheet member 66 of the cooling mat 24 is exposed to the front side, and the magic tapes attached to both ends thereof are detachably connected by bands (not shown) having the magic tapes at both ends. In addition, each overhang portion 52 and 54
The velcro tapes attached to the above are detachably connected by another band (not shown) having velcro tapes at both ends. The cooling mat 26 is attached so as to be wrapped around the neck. On the other hand, the fourth layer sheet member 66 of the cooling mat 26 has a form exposed on the front side, and there is another band (not shown) provided with velcro tapes at both ends between the velcro tapes attached at positions near one end and the other end. Is detachably connected.

By turning on an operation switch (not shown) provided in association with the water cooler unit 4, the water pump 14 is rotationally driven. The cooling water in the water tank 10 which has been cooled to a predetermined temperature by the water cooler 12 is forcedly circulated in the cooling water circulation passage and the cooling water circulation branch passage shown in FIG. Cooling water, the temperature of which is adjusted by the water cooler 12, is continuously flowed through the cooling water passages 32 and 38 in the cooling mats 24 and 26, respectively. Cooling mat 2
4 and 26 are maintained at a substantially constant temperature without being affected by body temperature. The cooling water is the cooling mats 24 and 2.
In the process of flowing in the cooling water flow paths 32 and 38 of 6, heat is taken away from the head and neck around which the thin surface layer sheet member 60 contacts. To finish the cooling of the head and neck performed as described above, turn off the operation switch.
And it is sufficient. As a result, the rotation of the water pump 14 is stopped and the circulation of the cooling water is stopped. By releasing the connection of the cooling mats 24 and 26 with the band, they can be easily removed from the head and neck. The cooling mats 24 and 26 may be kept in a standby state before use. In the subsequent use, the same operation as described above is merely repeated, and it is not necessary to replace the cooling mats 24 and 26 after each use.

Although the embodiments of the medical cooling device and the cooling mat used in the device according to the present invention have been described above, the present invention is not limited to the above-mentioned embodiments, and deviates from the scope of the present invention. Various variations or modifications are possible without any. For example, although two cooling mats are used in the above embodiment, one cooling mat may be used, or three cooling mats may be used as needed.
It holds even if it is more than one.

[0038]

According to the medical cooling device of the present invention,
Even when the desired cooled portion of the human body is continuously cooled by using the cooling mat, the cooling water in the cooling mat is prevented from rising due to the body temperature. Therefore, continuous cooling can be automatically and stably performed. Moreover, since it is no longer necessary to replace the cooling mat one by one as in the conventional case, the labor of nursing is significantly reduced. Further, since the cooling mat is cooled only by operating the water pump, there is no need to cool a cooling tool as in the conventional case, and labor saving can be achieved in this respect as well. Further, in a hospital or the like, it is not necessary to prepare a large number of cooling tools as in the conventional case, and the management load is reduced. Therefore, when the present invention is used in a hospital or the like, cooling can be performed very efficiently, which is useful.

According to the cooling mat used in the medical cooling device according to the present invention, the entire structure can be formed to be relatively thin, lightweight, flexible, and easy to be curved, excellent in conformability to the shape of the desired cooling portion of the human body, and easy to handle. It is convenient. Also, due to the welding, the molding is easy and the sealing property against water leakage is high. Since the surface layer sheet member in which the cooling water flows inside can be used in a form of directly contacting the cooled portion of the human body, cooling can be efficiently performed.
Therefore, the cooling mat of the present invention can be suitably used for the medical cooling device.

[Brief description of drawings]

FIG. 1 is a schematic diagram of a medical cooling device constructed in accordance with the present invention.

FIG. 2 is a plan view showing an embodiment of a cooling mat used in the medical cooling device shown in FIG.

FIG. 3 is a side view showing the arrow A of FIG. 2 with a part omitted.

FIG. 4 is an enlarged view of part B in FIG.

5 is a cross-sectional view taken along the line C-C of FIG. 2, in which the fourth layer sheet member is omitted and a part of the electrodes of the high-frequency sealer is schematically illustrated.

6 is a cross-sectional view taken along the line D-D in FIG. 2, schematically showing a part of the electrodes of the high-frequency sealer.

FIG. 7 is a cross-sectional view taken along the line C-C of FIG. 2, in which the fourth layer sheet member is not omitted.

8 is a cross-sectional view taken along the line EE of FIG.

9 is a perspective schematic view conceptually showing a usage example of the medical cooling device and its cooling mat shown in FIG. 1. FIG.

[Explanation of symbols]

 2 Medical Cooling Device 4 Chiller Unit 10 Water Tank 12 Chiller 14 Water Pump 18, 40 and 42 Cooling Water Supply Tube 20 Manifold 24 First Cooling Mat 26 Second Cooling Mat 28 and 34 Cooling Water Inlet 30 and 36 Cooling water outlet 32 and 38 Cooling water flow path 33 and 39 Partition walls 46, 47 and 48 Cooling water discharge tube 50 Main body 52 and 54 Overhang 60 Surface layer sheet member 62 Second layer sheet member 64 Third layer sheet member 664 4 layers Eye sheet member 68 Adhesive part 70 Peripheral weld part 72 Inner weld part 74 and 76 Tube 80 Base 82 Electrode 90 Bed 92 Dome

Claims (11)

[Claims] 1. A water tank containing cooling water, and a cooling mat having a cooling water channel having a cooling water inlet and a cooling water outlet formed therein for cooling a cooled part of a human body. The cooling water inlet of the cooling mat and the water tank are connected by a cooling water supply passage, and the cooling water outlet of the cooling mat and the water tank are connected by a cooling water discharge passage to form a cooling water circulation passage. A medical cooling device, wherein the cooling water is formed and forcedly circulates cooling water by a water pump provided in the cooling water circulation passage. 2. A second cooling mat having a cooling water flow passage having a cooling water inlet and a cooling water outlet formed therein is provided, and the cooling water inlet of the second cooling mat is connected to the cooling water supply flow passage. Connected to a cooling water supply branch passage branched from the first cooling mat and connecting the cooling water outlet of the second cooling mat to a cooling water discharge branch passage which joins the cooling water discharge passage to form a cooling water circulation branch passage. The cooling water circulation passage is formed in parallel with the cooling water circulation passage.
The medical cooling device described. 3. The medical cooling device according to claim 1, wherein the cooling water is adjusted to a predetermined temperature by a water cooler. 4. The medical cooling device according to claim 1 or 2, wherein a plurality of partition walls are formed at intervals in the cooling water flow path of the cooling mat. 5. A cooling mat for cooling a cooled part of a human body, comprising a plurality of synthetic resin sheet members integrally formed by superposing each other and welding a predetermined welding part, The predetermined welded portion includes a peripheral welded portion that defines a peripheral edge portion of the cooling mat, and includes a surface layer sheet member exposed to the outside of the sheet member and a second layer sheet member superposed on the surface layer sheet member. A cooling water passage is defined by a space substantially surrounded by the peripheral weld portion, and the cooling water passage has a cooling water inlet and a cooling water outlet formed through the peripheral weld portion. A cooling mat used for medical cooling devices. 6. The predetermined welded portion includes a plurality of inner welded portions surrounded by the peripheral welded portion and spaced apart from each other, and a plurality of partition walls are formed in the cooling water flow path. 6. The cooling mat for use in a medical cooling device according to claim 5, wherein each of the above is defined by each of the inner welded portions. 7. The partition walls extend substantially parallel to an imaginary straight line that traverses the cooling mat when the cooling mat is viewed from a plane, and the cooling water inlet and the cooling water outlet are The cooling mat used in the medical cooling device according to claim 6, which extends substantially parallel to the virtual straight line. 8. The medical device according to claim 5, comprising a substantially rectangular main body, and a pair of overhanging portions that extend laterally outwardly from one side portion in the width direction of the main body portion. Cooling mat used in the cooling system for automobiles. 9. The sheet member fused together comprises a third layer sheet member polymerized to the second layer sheet member, wherein the surface layer sheet member and the second layer sheet member are each made of a soft vinyl chloride film. The third layer sheet member is formed of a foamed vinyl chloride film, the fourth layer sheet member is polymerized and adhered to the third layer sheet member, and the fourth layer sheet member is formed of a foamed polyethylene sheet. The cooling mat used in the medical cooling device according to claim 5. 10. The surface layer member and the second layer sheet member each have a thickness of 0.2 mm, the third layer sheet member have a thickness of 0.4 mm, and the fourth layer sheet member has a thickness of 0.4 mm. The cooling mat used in the medical cooling device according to claim 9, which has a thickness of 2.0 mm to 3.0 mm. 11. The cooling water inlet and the cooling water outlet are defined by tubes penetrating between the surface layer sheet member and the second layer sheet member and welded thereto,
The cooling mat used in the medical cooling device according to claim 9, wherein the tube is formed of soft vinyl chloride.