JP5955477B1 - Body fluid collector and body fluid collection and discharge method - Google Patents

Abstract

A body fluid collected by a body fluid collector is made available for a plurality of uses. A body fluid collector 100 is infused into a suction part 1 having a communication suction path 14 for sucking body fluid and an open suction path 15, and a communication suction path 14 for discharging the body fluid sucked by the suction part 1. The main body part 2 has a ventilation path 21 through which gas passes and a hole 24 that opens one end of the open suction path 15. [Selection] Figure 1

Description

  The present invention relates to a body fluid collector and a body fluid collection and discharge method for collecting body fluid.

  2. Description of the Related Art Conventionally, a body fluid collector for collecting body fluids such as blood and urine used for a test for diagnosing a human health condition is known. Patent Document 1 discloses a bodily fluid collector that can discharge bodily fluids by injecting gas into a suction path in which bodily fluids collected using capillary action are accumulated.

International Publication No. 2015/034009

  In recent years, techniques for cancer diagnosis, blood analysis, biochemical analysis, and the like have been developed using extremely small amounts of blood and urine. Then, at the pharmacy store or home, the subject who undergoes the blood test can collect blood, discharge the collected blood into a transport container, and send the transport container containing the blood to the inspection organization for inspection. The blood test service is becoming popular. In addition, a service is also provided in which a transport container containing blood is centrifuged by an inexpensive centrifuge installed in a store such as a pharmacy and the transport container containing the blood after centrifugation is sent to an inspection organization. Furthermore, there is a need for preserving blood in order to ensure the identity of the subject. Thus, there is an increasing need to use body fluid collected by a body fluid collector for various purposes.

  However, in the case of using the conventional body fluid collector, the user has to collect the body fluid a plurality of times using the plurality of body fluid collectors in order to use the body fluid for a plurality of uses. As a result, there is a problem that the cost required for the body fluid collector increases and the time for collecting the body fluid becomes longer.

  Therefore, the present invention has been made in view of these points, and an object of the present invention is to provide a bodily fluid collector that makes it possible to use bodily fluids collected by one bodily fluid collector for a plurality of uses.

  The bodily fluid collecting device according to the first aspect of the present invention is a bodily fluid collecting device that collects bodily fluids, and includes a suction part having a communication suction path and an open suction path for sucking the body fluid, and the body fluid sucked by the suction part A main body portion having a vent path through which the gas injected into the communication suction path passes and a hole that opens one end of the open suction path.

  The bodily fluid collector may further include a relay unit including a communication relay path that relays the communication suction path and the ventilation path, and an open relay path that relays the open suction path and the hole. Good.

  The suction part may include a storage part that stores the relay part, and one end of the communication suction path and the open suction path may be opened in the storage part.

  The communication relay path may have a tapered shape in which an inner diameter on a side in contact with the ventilation path is larger than an inner diameter on a side in contact with the communication suction path.

The suction unit may include a plurality of communication suction paths that communicate with the ventilation path.
The suction unit may include a plurality of the open suction paths communicating with the hole.

  The body fluid collecting and discharging method according to the second aspect of the present invention is a body fluid collecting and discharging method using a body fluid collecting device for collecting body fluid, wherein the body fluid is discharged via a communication suction path and an open suction path of the body fluid collecting device. And a step of selectively discharging the bodily fluid sucked into the communication suction path by injecting gas into the communication suction path without injecting gas into the open suction path. .

  According to the present invention, there is an effect that the body fluid collected by one body fluid collector can be used for a plurality of uses.

It is a figure which shows a part of external appearance and internal structure of the bodily fluid collector 100 which concerns on 1st Embodiment. It is a figure which shows the structure of the state which the suction part 1 and the main-body part 2 which comprise the bodily fluid collector 100 isolate | separated. FIG. 4 is a top view of the upper suction part 13. 3 is a cross-sectional view of a main body 2. FIG. It is a figure which shows the structure of the relay member 4a. It is a figure which shows the structure of the bodily fluid collector 200 which concerns on 2nd Embodiment. It is a figure which shows the structure of the relay member 4b of 2nd Embodiment. It is a figure which shows the structure of the bodily fluid collector 300 which concerns on 3rd Embodiment. It is a figure which shows the structure of the relay member 4c of 3rd Embodiment. It is a top view by the side of the upper suction part 13 of the suction part 1 of 4th Embodiment.

<First Embodiment>
[Outline of body fluid collector 100]
FIG. 1 is a diagram illustrating an appearance and a part of an internal structure of a body fluid collector 100 according to the first embodiment. FIG. 2 is a diagram illustrating a configuration in a state where the suction unit 1 and the main body unit 2 which are part of the body fluid sampling device 100 are separated. The solid line in FIG.1 and FIG.2 shows an external appearance, and the broken line has shown the internal structure.

  1A is a front view of the body fluid collector 100, and FIG. 1B is a right side view of the body fluid collector 100. FIG. The body fluid collector 100 includes a suction part 1, a main body part 2, a cover part 3, and a relay member 4. The body fluid sampler 100 is in the state shown in FIG. 1 by inserting the main body 2 into the suction part 1 shown in FIG.

First, an outline of the body fluid collector 100 will be described with reference to FIG.
When a user (for example, a person inspecting body fluid or a person to be inspected) immerses the tip of the body fluid collector 100 in body fluid, the communication suction path 14 and the open suction path 15 formed in the suction unit 1 are formed by capillary action. Filled with body fluids. Thereafter, when the user presses the cover portion 3, gas is injected into the ventilation path 21 communicating with the communication suction path 14 via the communication relay path 41, so that the body fluid filled in the communication suction path 14 is externally supplied. Can be discharged. At this time, since the open suction path 15 is not in communication with the ventilation path 21, the body fluid filled in the open suction path 15 is not discharged to the outside but remains in the open suction path 15.

  In this way, the user can discharge some of the other body fluids while leaving some of the body fluids aspirated using the body fluid collector 100. The user, for example, puts the suction part 1 in a state where the body fluid remains in the centrifuge transport container, and puts the centrifuge transport container containing the suction part 1 in the centrifuge to centrifuge the body fluid. The body fluid component can be analyzed. The user can also store the discharged body fluid in a storage container and store it in a storage, or mail it to another inspection organization for inspection.

  In addition, when putting a suction part 1 in the conveyance container for centrifuges, a user tilts the main-body part 2 after putting the bodily fluid collector 100 in the conveyance container for centrifuges. 2 can be easily separated. By doing so, the user can store the suction part 1 containing the body fluid in the transport container for the centrifuge without touching the body fluid and inspect it with the centrifuge, or separate the separator into another inspection organization. The transport container can be sent.

[Detailed Configuration of Body Fluid Collector 100]
Hereinafter, the configuration of each unit will be described in detail with reference to FIG.
The suction unit 1 includes a lower suction unit 11, an intermediate suction unit 12, and an upper suction unit 13. The lower suction part 11, the intermediate suction part 12, and the upper suction part 13 are integrally formed of, for example, hard resin.
The lower suction part 11 has a truncated cone shape or a truncated pyramid shape, and has a communication suction path 14 and an open suction path 15 inside. One end of the communication suction path 14 and the open suction path 15 is opened at the distal end surface of the lower suction section 11, and the other end is opened at the upper suction section 13 side of the intermediate suction section 12.

  The intermediate suction part 12 has a convex part 121 with which the tip of the main body part 2 contacts in a state where the suction part 1 and the main body part 2 are coupled. When the suction part 1 is inserted into the centrifuge transport container, the position of the suction part 1 is determined by the convex part 121. The intermediate suction unit 12 shown in FIG. 2 has a shape in which a plurality of cylinders having different diameters are combined, but the shape of the intermediate suction unit 12 is arbitrary, and the lower suction unit 11 functions as the intermediate suction unit 12. It may also serve as.

The upper suction part 13 has a hollow cylindrical shape, and is an accommodation part in which the relay member 4a can be detachably accommodated.
FIG. 3 is a top view of the upper suction portion 13. As shown in FIG. 3, the inner wall of the upper suction portion 13 is substantially cylindrical, but has a flat wall h at least partially. Since the upper suction portion 13 has such a wall surface h, the direction in which the relay member 4a is accommodated can be fixed. When the intermediate suction part 12 is viewed from the open end of the upper suction part 13 in a state where the relay member 4a is not accommodated in the upper suction part 13, the communication suction path 14 and the open suction path 15 can be visually recognized. That is, one end of the communication suction path 14 and the open suction path 15 is opened at the boundary surface between the intermediate suction section 12 and the upper suction section 13.

  The communication suction path 14 and the open suction path 15 are paths for sucking and accumulating body fluid. When the tip of the lower suction part 11 is immersed in the body fluid, the body fluid is taken into the communication suction path 14 and the open suction path 15 by capillary action, and is held in the taken-in state. The communication suction path 14 and the open suction path 15 are tapered so that the inner diameter on the side in contact with the communication relay path 41 and the open relay path 42 is larger than the inner diameter on the tip side.

  The main body 2 includes a main body 20, a ventilation path 21, a cover mounting portion 22, a housing portion 23, and a hole 24. The cover portion 3 is a rubber dome-shaped member and is attached to the main body portion 2. The cover part 3 is formed with a hole (not shown) for allowing the gas in the air passage 21 to escape to the outside of the cover part 3.

  The main body 20 has a cylindrical shape and has an air passage 21 inside. When the user collects bodily fluid, the gas in the air passage 21 moves to the outside of the cover portion 3 by opening the hole formed in the cover portion 3, so that the bodily fluid is removed by capillary action. It can be taken into the communication suction path 14.

  In addition, the air passage 21 allows gas injected into the communication suction passage 14 to discharge the body fluid sucked by the suction portion 1. When the user discharges the bodily fluid that has entered the communication suction path 14, the user presses the cover portion 3 in a state where the hole formed in the cover portion 3 is closed, so that the space between the cover portion 3 and the main body portion 2 is reduced. A gas (for example, air) in the space can be injected into the air passage 21. As a result, the body fluid held in the communication suction path 14 communicating with the ventilation path 21 can be discharged to the outside.

  The ventilation path 21 communicates with the communication suction path 14 via the communication relay path 41, and has a tapered shape in which the inner diameter becomes smaller as the suction section 1 is approached. Since the ventilation path 21 has such a taper shape, the pressure of the gas injected into the communication suction path 14 increases, so that the body fluid does not easily remain in the communication suction path 14.

The cover mounting portion 22 is a convex portion provided at the end of the main body 2 opposite to the side coupled to the suction portion 1. One end of the air passage 21 is open at the end face of the cover mounting portion 22.
The accommodating part 23 has a cylindrical shape and accommodates the upper suction part 13. The inner diameter of the accommodating part 23 is slightly larger than the outer diameter of the upper suction part 13.

  The hole 24 is formed at a boundary position with the accommodating portion 23 in the main body 20. The hole 24 faces one end of the open relay path 42 and is formed to open one end of the open suction path 15 via the open relay path 42. Since the hole 24 is formed, the gas in the open suction path 15 can be discharged, so that body fluid can be taken into the open suction path 15 by capillary action.

  FIG. 4 is a cross-sectional view of the main body 2. 4A is a cross-sectional view taken along the line AA in FIG. 2B, and FIG. 4B is a cross-sectional view taken along the line BB in FIG. 2B. In FIG. 4A, the boundary 25 of the hole 24 is shown. The hole 24 communicates with the outside of the body fluid collector 100 and one end of the open suction path 15 by facing one end of the open relay path 42, but does not face one end of the communication relay path 41, The communication suction path 14 does not have a function of communicating with the outside of the body fluid collector 100.

  The shape of the hole 24 is arbitrary as long as one end of the open suction path 15 can communicate with the outside, and one end of the communication suction path 14 does not communicate with the outside. For example, as shown in FIG. The hole 24 has, for example, a cross-sectional shape surrounded by two arcs. Since the hole 24 has such a shape, it is possible to secure a large area where one end of the open suction path 15 can be exposed while maintaining strength within a range in which one end of the communication suction path 14 does not communicate with the outside.

  FIG. 5 is a view showing the structure of the relay member 4a. FIG. 5A is a side view of the relay member 4a corresponding to the right side view shown in FIG. FIG. 5B is a top view of the relay member 4a. FIG. 5B is a bottom view of the relay member 4a.

  As shown in FIG. 5, the outer periphery of the relay member 4 a has the same shape as the inner periphery of the upper suction portion 13. The relay member 4 a is formed with a communication relay path 41 and an open relay path 42, and the communication relay path 41 has an inner diameter on the side in contact with the ventilation path 21 larger than an inner diameter on the side in contact with the communication suction path 14. Has a tapered shape. Since the communication relay path 41 has such a shape, the pressure at the time of discharging the body fluid accumulated in the communication suction path 14 is increased, so that the body fluid can be easily discharged. Although the shape of the open relay path 42 is arbitrary, in the example shown in FIG. 5, the open relay path 42 has a tapered shape like the communication relay path 41.

  As is apparent from FIGS. 1 and 2, the inner diameter of the communication relay path 41 on the side in contact with the communication suction path 14 is smaller than the inner diameter of the communication suction path 14 on the side in contact with the communication relay path 41. Similarly, the inner diameter of the open relay path 42 on the side in contact with the open suction path 15 is smaller than the inner diameter of the open suction path 15 on the side in contact with the open relay path 42. Since the relationship between the inner diameter of the communication suction path 14 and the inner diameter of the communication relay path 41 and the relationship between the inner diameter of the open suction path 15 and the inner diameter of the open relay path 42 are as described above, the communication suction path is caused by capillary action. 14 and the body fluid that has risen along the open suction path 15 do not rise above the position where the communication suction path 14 and the communication relay path 41 contact each other and the position where the open suction path 15 and the open relay path 42 contact each other. As a result, the amount of collected body fluid can be made equal to the volume of the communication suction path 14 and the open suction path 15. In this way, even a person who has not undergone specialized training can collect a small amount of a certain amount of body fluid.

  The broken lines shown in FIG. 5B and FIG. 5C indicate the position of the boundary 25 of the hole 24. It can be seen that the communication relay path 41 and the open relay path 42 are arranged on opposite sides of the boundary 25. Since the relay member 4a has the communication relay path 41 and the open relay path 42 in such a positional relationship, the user presses the cover unit 3 to communicate with the ventilation path 21 via the communication relay path 41. Gas is injected into the communicating suction path 14, but no gas is injected into the open suction path 15, so that the body fluid accumulated in the communicating suction path 14 can be selectively discharged. Then, the user can remain in the open suction path 15 without discharging the body fluid accumulated in the open suction path 15.

  In addition, the horizontal cross-sectional shape of the communication suction path 14, the open suction path 15, the communication relay path 41, and the open relay path 42 is arbitrary. These horizontal cross-sectional shapes may be circular or polygonal, and the communication suction path 14, the open suction path 15, the communication relay path 41, and the open relay path 42 may be conical or pyramidal. There may be.

[Effects of the body fluid collector 100 of the first embodiment]
As described above, the bodily fluid collector 100 according to the first embodiment includes the vent path 21 through which the gas injected into the communication suction path 14 passes and the open suction path to discharge the bodily fluid sucked by the suction unit 1. 15 and a hole 24 that opens one end. Since the body fluid collector 100 has such a configuration, the user operates the cover unit 3 to inject gas into the ventilation path 21, so that the body fluid accumulated in the communication suction path 14 among the collected body fluids. Can be selectively discharged, and the body fluid accumulated in the open suction path 15 can be held continuously.

<Second Embodiment>
FIG. 6 is a diagram showing a configuration of the body fluid collector 200 according to the second embodiment. 6A corresponds to FIG. 2A, and FIG. 6B corresponds to FIG. Since the main body 2 and the cover 3 shown in FIG. 6 are the same as the main body 2 and the cover 3 shown in FIG. In the bodily fluid collector 200 shown in FIG. 6, the suction unit 1 has an open suction path 16 and an open suction path 17 instead of the open suction path 15 in the bodily fluid collector 100, and the relay member 4 a in the bodily fluid collector 100. Is different from the body fluid collector 100 in that the relay member 4b is accommodated in the upper suction part 13 instead of the body fluid collector 100.

  FIG. 7 is a diagram illustrating the structure of the relay member 4b according to the second embodiment. The relay member 4b differs from the relay member 4a shown in FIG. 2 in that it has an open relay path 43 and an open relay path 44 instead of the open relay path 42, and is the same in other points. The open relay path 43 communicates with the open suction path 16, and the open relay path 44 communicates with the open suction path 17.

  As shown in FIG. 7A, the shapes of the open relay path 43 and the open relay path 44 are equivalent to the shape of the open relay path 42 shown in FIG. As illustrated in FIG. 7B, the open relay path 43, the open relay path 44, and the communication relay path 41 are disposed on the opposite sides with respect to the boundary 25. That is, the open relay path 43 and the open relay path 44 are provided in a region where the hole 24 is formed.

  Since the suction part 1 has the open suction path 16 and the open suction path 17, and the relay member 4a has the open relay path 43 and the open relay path 44, the user discharges only the body fluid filled in the communication suction path 14. The body fluid filled in the open suction path 16 and the body fluid filled in the open suction path 17 can be left without being discharged.

[Effects of the body fluid collector 200 of the second embodiment]
As described above, the body fluid sampling device 200 has a plurality of open suction paths that are not in communication with the ventilation path 21. When the body fluid collector 200 has such a configuration, the body fluid collector 200 can hold more body fluid than the body fluid collector 100 according to the first embodiment.

<Third Embodiment>
FIG. 8 is a diagram illustrating a configuration of the body fluid collector 300 according to the third embodiment. FIG. 8A corresponds to FIG. 2A, and FIG. 8B corresponds to FIG. The main body 2 and the cover 3 shown in FIG. 8 are the same as the main body 2 and the cover 3 shown in FIG. In the body fluid sampling device 300 shown in FIG. 8, the suction unit 1 has a communication suction channel 18 and a communication suction channel 19 instead of the communication suction channel 14 in the body fluid sampling device 100, and the relay member 4 a in the body fluid sampling device 100. Is different from the body fluid collector 100 in that the relay member 4c is accommodated in the upper suction portion 13 instead of the body fluid collector 100.

  FIG. 9 is a diagram illustrating the structure of the relay member 4c according to the third embodiment. The relay member 4 c is different from the relay member 4 a shown in FIG. 2 in that the relay member 4 c includes a communication relay path 45 and a communication relay path 46 instead of the communication relay path 41. The relay member 4c is different from the relay member 4a in that the relay member 4c further includes a groove 47 for communicating the communication relay path 45 and the communication relay path 46 with the ventilation path 21. The communication relay path 45 communicates with the communication suction path 18, and the communication relay path 46 communicates with the communication suction path 19.

  As shown in FIG. 9A, the communication relay path 45 and the communication relay path 46 are different from the communication relay path 41 shown in FIG. Yes. As shown in FIG. 9B, the communication relay path 45 and the communication relay path 46 are formed at positions separated from the positions corresponding to the ventilation paths 21.

  The suction part 1 has the communication suction path 18 and the communication suction path 19, and the relay member 4 c has the communication relay path 45, the communication relay path 46 and the groove 47, so that the user can connect the communication suction path 18 and the communication suction path 19. After the body fluid is filled, the gas output from the ventilation path 21 can be injected into the communication suction path 18 and the communication suction path 19 via the communication relay path 45, the communication relay path 46, and the groove 47. As a result, the user can discharge the body fluid filled in the communication suction path 18 and the communication suction path 19.

[Effects of the body fluid collector 300 of the third embodiment]
As described above, the body fluid collector 300 has a plurality of communication suction paths that communicate with the ventilation path 21. Since the body fluid collector 300 has such a configuration, it is possible to collect and discharge more body fluid than the body fluid collector 100 according to the first embodiment.

<Fourth Embodiment>
In 1st Embodiment-3rd Embodiment, according to the kind of the relay member 4, the suction part 1 had the communication suction path and the open suction path in the different position, but in 4th Embodiment Is different from the first to third embodiments in that the suction part 1 has a number of communication suction paths and open suction paths that can be used by a plurality of types of relay members 4.

  FIG. 10 is a top view of the suction unit 1 according to the fourth embodiment on the upper suction unit 13 side. As illustrated in FIG. 10, the suction unit 1 of the fourth embodiment includes a communication suction path 14, an open suction path 15, an open suction path 16, an open suction path 17, a communication suction path 18, and a communication suction path 19.

[Effects of the body fluid collector according to the fourth embodiment]
As described above, the bodily fluid collecting device according to the fourth embodiment is configured so that the suction part 1 can be connected to the communication relay path and the open relay path of the plurality of types of relay members 4, and the communication suction path and the open suction path. Have Since the suction unit 1 has such a configuration, the user only changes the type of the relay member 4 according to the amount of body fluid that has been collected and discharged and the amount of body fluid that has been collected and stored. Thus, an appropriate body fluid can be collected and discharged and stored.

<Modification>
In the above description, an example in which the relay member 4 is separable from the suction unit 1 has been described, but any one of the relay member 4a, the relay member 4b, and the relay member 4c may be integrated with the suction unit 1. In this case, by exchanging the relay member 4a, the relay member 4b, and the relay member 4c, the amount of collecting body fluid and the amount of remaining body fluid cannot be changed, but otherwise the same as the above embodiment. The effect of can be obtained.

  As mentioned above, although this invention was demonstrated using embodiment, the technical scope of this invention is not limited to the range as described in the said embodiment. It will be apparent to those skilled in the art that various modifications or improvements can be added to the above embodiment. It is apparent from the scope of the claims that the embodiments added with such changes or improvements can be included in the technical scope of the present invention.

DESCRIPTION OF SYMBOLS 1 Suction part 2 Main body part 3 Cover part 4 Relay member 11 Lower suction part 12 Intermediate suction part 13 Upper suction part 14, 18, 19 Communication suction path 15, 16, 17 Open suction path 21 Ventilation path 22 Cover mounting part 23 Storage part 24 hole 25 boundary 41, 45, 46 communication relay path 42, 43, 44 open relay path 47 groove 100 body fluid collector 121 convex part 200 body fluid collector 300 body fluid collector

Claims (7)

A body fluid collector for collecting body fluid,
A suction part having a communicating suction path and an open suction path for sucking the body fluid by capillary action ;
A main body connected to the suction part on the opposite side of the suction part from the side for sucking the body fluid;
With
The main body is
A ventilation path through which the gas injected into the communication suction path from the opposite side of the suction part to discharge the body fluid sucked by the suction part ;
A hole that opens so that the opposite end of the suction part in the open suction path communicates with outside air ;
A body fluid collector. A communication relay path that relays between the communication suction path and the ventilation path;
An open relay path that relays between the open suction path and the hole;
A relay unit having
The bodily fluid collector according to claim 1. The suction part has an accommodation part for accommodating the relay part,
In the housing portion, one end of the communication suction path and the open suction path is open.
The bodily fluid collector according to claim 2. The communication relay path has a tapered shape in which an inner diameter on a side in contact with the ventilation path is larger than an inner diameter on a side in contact with the communication suction path.
The body fluid collector according to claim 2 or 3. The suction part has a plurality of the communication suction paths communicating with the ventilation path.
The bodily fluid collector according to any one of claims 1 to 4. The suction part has a plurality of the open suction paths communicating with the hole,
The bodily fluid collector according to any one of claims 1 to 5. A method for collecting and discharging body fluid using a body fluid collector for collecting body fluid,
Aspirating the bodily fluid by capillary action through the communication suction path and the open suction path of the bodily fluid collector; and
By injecting gas into the communication suction path without injecting gas into the open suction path, the body fluid sucked into the open suction path communicated with outside air is held in the state accumulated in the open suction path. And discharging the bodily fluid sucked into the communication suction path;
A method for collecting and discharging body fluids.

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