WO2007148661A1

WO2007148661A1 - Air bag for pressing living body

Info

Publication number: WO2007148661A1
Application number: PCT/JP2007/062259
Authority: WO
Inventors: Takashi Nakanishi
Original assignee: Citizen Holdings Co., Ltd.
Priority date: 2006-06-20
Filing date: 2007-06-19
Publication date: 2007-12-27
Also published as: CN101472521A; JP5068260B2; CN101472521B; JPWO2007148661A1

Abstract

An air bag for pressing a living body, in which a problem that an arm of the user is non-uniformly pressed to give uncomfortable feeling to the user is prevented and in which measurement accuracy is increased. These are achieved by supplying air in a generally uniform way to the entire part of the air bag to totally and uniformly press the arm. The air bag (2) has a substantially rectangular air bag (22), a pipe (21) connected to the air bag (22), and a net-like sheet (23) contained in the air bag (22). The net-like sheet (23) has an upper folded part (231), a lower folded part (232), a right folded part (233), and a left folded part (234).

Description

Specification

Biological compression air bag

Technical field

[0001] The present invention relates to an air bag for compressing a living body. In particular, the air bag for living body compression according to the present invention is used for an arm band for a blood pressure meter and supplies air almost uniformly to the entire air bag. In this way, the arm is compressed overall and evenly. Therefore, it is possible to prevent a problem that the pressure is biased and give an uncomfortable feeling, and it is possible to improve the measurement accuracy.

Background

In recent years, sphygmomanometers are widely used not only in hospitals and the like but also for general households for the purpose of health management. These sphygmomanometers for general home use are usually composed of a measuring unit for automatically measuring and displaying blood pressure and an arm band for sphygmomanometer having an air bag or the like. The measurement unit can measure blood pressure in a short time and easily. However, in order to measure blood pressure with high accuracy, the air bag for living body compression needs to press the arm almost uniformly.

[0003] In general, air bags for blood pressure monitors that are widely used are made of resin. This air bag is manufactured, for example, by overlapping resin sheets and welding the end portions. When the air bag is not used, the inner wall surfaces of the opposing resin sheets may be in close contact with each other. In such a case, when inflating the air bag by inflating the air, first, a force is required to peel off the inner wall surfaces of the closely attached resin sheets. Therefore, little in the discharge pressure can not injecting air, sometimes force ^s inability to inflate the air bag easy.

For this reason, various techniques related to the air bag for living body compression have been developed.

[0004] (Conventional example)

For example, Patent Document 1 discloses a technology of a rubber bag for a sphygmomanometer in which fine irregularities are provided on the inner surface of an air bag. According to this technique, even if the material of the air bag has adhesiveness, it is possible to avoid a problem that occurs when the contacting inner surfaces adhere to each other. Therefore, when inflating the air bag by injecting air, the force S can be generated smoothly and without causing noise. [0005] Patent Document 2 discloses a technique of a pressure band for blood pressure measurement including an air bag in which a rectangular flat plate-like open cell sponge is inserted. According to this technology, the air bag can be inhaled by using the swelling force of the sponge itself, and the sponge functions as a cushioning material that softens body movement. A sponge is housed inside the air bag. Thus, when air flows into the air bag, an air flow path is formed between the sponge and the air bag, and the air easily flows. In addition, since countless holes are formed on the surface of the sponge, the contact area between the sponge and the inner wall surface of the air bag is reduced. Therefore, it is possible to avoid the problem of close contact with each other.

Patent Document 1: Japanese Utility Model Publication No. 55-122702

Patent Document 2: Real Fair 4 48163 Publication

Disclosure of the invention

Problems to be solved by the invention

[0006] The air bags described in Patent Documents 1 and 2 have improved air supply efficiency and can supply air smoothly and in a short time compared to air bags without fine irregularities or sponges. However, at the ends of the air bag in the longitudinal direction and the short direction, air may not be supplied smoothly due to the viscous effect of the air, and the arm may not be compressed as a whole and uniformly. When force is applied, the arm is biased and pressed, causing discomfort to the user and inability to measure accurately.

Further, when the air bag for living body compression is wound around the arm, wrinkles in the arm direction are generated in the air bag for living body compression. If the movement of air is blocked by this wrinkle, the arm may not be able to press the entire arm evenly.

[0007] The present invention has been proposed in order to solve the problems of the conventional techniques as described above. By supplying air almost uniformly to the entire air bag, the arm is made uniform and overall. An object of the present invention is to provide an air bag for compressing a living body, which can prevent a problem of being compressed and causing uncomfortable feeling due to partial pressure and improving measurement accuracy.

Means for solving the problem

[0008] In order to achieve the above object, a living body compressing air bag of the present invention is a living body compressing air bag in which a spacer is housed inside an air bag, wherein the air bag has an edge portion inside the air bag. The thickness of the spacer is configured to be thicker than the thickness of the central portion of the spacer.

If it does in this way, air can be supplied to the whole air bag substantially uniformly, and an arm is compressed as a whole and uniformly. Therefore, it is possible to prevent a problem that the pressure is biased and cause discomfort, and it is possible to improve the measurement accuracy.

[0009] Preferably, the spacer is either a mesh sheet or a porous sheet.

If it does in this way, when sending in air, a minute and many space | gap will be formed between an air bag inner surface and a spacer. Therefore, air can be supplied to the air bag as a whole without being affected by the adhesiveness of the inner surface of the air bag. As a result, it is possible to more reliably avoid problems such as V where the air bag is partially inflated.

[0010] Preferably, the mesh sheet or the porous sheet has a bent portion in the vicinity of the edge inside the air bag, and the opposed bent portions are separated from each other.

In this way, a spacer can be produced simply by cutting and bending the mesh sheet or porous sheet. Therefore, the manufacturing cost can be reduced.

[0011] Preferably, the mesh sheet or the porous sheet is formed in a rectangular shape, and the bent portion is formed on each side of the mesh sheet or the porous sheet.

If it does in this way, since a shape can be simplified, it can manufacture easily.

[0012] Preferably, a predetermined gap may be provided between an end portion inside the air bag and an outer peripheral side end portion of the bent portion.

If it does in this way, a predetermined gap will function as a channel which supplies air. Therefore, air can be supplied more efficiently to the edge of the air bag.

[0013] Preferably, the corner and the central portion of the mesh sheet or porous sheet are formed by using the bent portion at the corner of the rectangular mesh sheet or porous sheet. Form a flow path that communicates.

If it does in this way, air will be supplied to the corner | angular part from the center part of a mesh-like sheet | seat or a porous sheet | seat via a flow path. Therefore, there is a problem that the four corners of the air bag do not expand. It can be avoided reliably.

[0014] Further, in order to achieve the above object, the living body compression air bag of the present invention is a living body compression air bag in which a spacer is housed in an air bag, and the spacer is disposed from above. In this configuration, a through hole penetrating to the lower surface is formed in a vertical and horizontal direction.

In this case, the contact area between the spacer and the inner wall surface of the air bag is reduced, and the spacer and the inner wall surface of the air bag can be prevented from coming into close contact with each other. Furthermore, since the hole formed in the spacer is a through hole, the air resistance can be made as small as possible. Therefore, the air can be smoothly flowed in. Further, since the through holes are formed in the vertical and horizontal directions (in the vertical and horizontal directions), the air flow can be made uniform. As a result, it is possible to supply air almost uniformly to the entire air bag. Therefore, it is possible to prevent a problem that the arm is pressed evenly and uniformly, and the arm is biased and uncomfortable, and the measurement accuracy is improved.

[0015] Preferably, the sheet is a mesh sheet.

In this way, the contact area between the spacer and the inner wall surface of the air bag can be further reduced.

Here, the net-like sheet refers to a sheet in which fibers are woven vertically and horizontally and a gap (through hole) is formed between the fibers. In addition, examples of the shape of the gap include a square, a rectangle, a turtle shell shape, a rhombus, and a circle.

[0016] Preferably, the thickness of the spacer at the edge of the air bag is larger than the thickness of the central portion of the spacer.

If it does in this way, air can flow smoothly into the edge of an air bag. In other words, the air bag edge has a hinge function, and it is necessary to apply a force to expand it. By increasing the thickness of the spacer at the edge of the air bag, the air bag edge can be expanded in advance. Therefore, the air is smoothly flowed into the edge of the air bag.

[0017] Preferably, the spacer has a bent portion in the vicinity of the edge inside the air bag, and the corresponding bent portions are separated from each other.

If it does in this way, a bending part will have spring nature, and this spring force will spread an air bag. And Therefore, as the air flows into the air bag, the bent portion pushes the air bag edge and expands the air more efficiently.

Brief Description of Drawings

[0018] FIG. 1 is a schematic perspective view of a wrist band for a sphygmomanometer in which the first embodiment of the air bag for living body compression of the present invention is used.

[FIG. 2] FIG. 2 is a schematic view for explaining the first embodiment of the air bag for living body compression of the present invention, (a) shows a reduced plan view, and (b) shows A-A. The cross-sectional enlarged view is shown.

[Fig. 3] Fig. 3 is a schematic view for explaining a mesh sheet according to the first embodiment of the air bag for biological compression of the present invention, (a) shows a reduced development view, (b ) Shows a reduced plan view of the folded sheet.

FIG. 4 is a schematic enlarged view for explaining a sheet used in the second embodiment of the air bag for living body compression of the present invention, and (a) shows a plan view of the first example. (B) shows a perspective view of the second example, (c) shows a plan view of the third example, and (d) shows a plan view of the fourth example.

FIG. 5 is a schematic reduced plan view for explaining an application example of the biocompression air bag of the present invention.

BEST MODE FOR CARRYING OUT THE INVENTION

[First embodiment of air bag for living body compression]

Hereinafter, a first embodiment of an air bag for living body compression according to the present invention will be described with reference to the drawings.

FIG. 1 is a schematic perspective view of a sphygmomanometer wrist band in which the first embodiment of the air bag for living body compression of the present invention is used.

In FIG. 1, an air bag 2 for compressing a living body is used for an arm band 1 for a sphygmomanometer. The sphygmomanometer arm band 1 includes a living body compression air bag 2, a flexible arm band 11, a fastening means 3, and the like.

[0020] <Blood compression air bag>

FIG. 2 is a schematic diagram for explaining the first embodiment of the air bag for living body compression according to the present invention, wherein (a) shows a reduced plan view, and (b) shows an AA cross-sectional enlarged view. Show. FIG. 3 is a schematic view for explaining the mesh sheet according to the first embodiment of the air bag for living body compression of the present invention, (a) shows a reduced development view, and (b) shows Show the reduced plan view of the folded sheet.

In FIGS. 2 and 3, the living body compression air bag 2 includes a substantially rectangular air bag 22, a pipe 21 connected to the air bag 22, and a mesh sheet 23 stored in the air bag 22.

[0021] The air bag 22 is formed in a bag shape having airtightness by welding the peripheral portions of two sheets cut into a substantially rectangular shape. Further, the air bag 22 has a mesh sheet 23 stored therein, and a pipe 21 for sending air into the upper end is attached. Usually, a thermoplastic soft synthetic resin is used as the material for the two sheets, and a thermoplastic synthetic resin is used as the material for the pipe 21.

Note that the air bag 22 of the present embodiment is not limited to force S, which is composed of two sheets welded on four sides. For example, a nearly square sheet is folded in half and welded on three sides.

The mesh sheet 23 is provided as a spacer that is accommodated in the air bag 22. The mesh sheet 23 of the present embodiment is a resin sheet having a substantially regular hexagonal mesh having a side of about 2 mm. In this way, when air is fed from the pipe 21, minute and many voids (not shown) are formed between the inner surface of the air bag 22 and the mesh sheet 23. Accordingly, it is possible to supply air to the air bag 22 as a whole without being affected by the adhesiveness of the inner surface of the air bag 22. As a result, it is possible to reliably avoid the problem that the air bag 22 does not partially inflate.

In the present embodiment, the force using the mesh sheet 23 is not limited to this. For example, a porous sheet such as a sponge sheet may be used.

[0023] Further, the mesh sheet 23 has a substantially rectangular shape as shown in FIG. 3 (a). The mesh-like sheet 23 has a strip-like upper bent portion 231, a lower bent portion 232, a right bent portion 233, and a left bent portion 234 on each side. In this way, since the shape is simplified, it can be easily cut from the same sheet material.

As shown in FIG. 3 (b), the cut mesh sheet 23 is folded into the respective bent portions 231, 232, 23. 3, 234 is folded inward. The mesh sheet 23 is folded so that it can be stored in the air bag 22. In this embodiment, it can be folded without applying heat, but it can be folded while applying heat.

[0024] When the mesh sheet 23 is stored in the air bag 22, as shown in FIG. 2 (a), an upper bent portion 231, a lower bent portion 232, a right bent portion 233, and a left bent portion 234, Air bag 22 Located near the edge of the interior. Further, the opposing bent portions (the upper bent portion 231 and the lower bent portion 232, and the right bent portion 233 and the left bent portion 234) are separated. That is, the edge of the mesh sheet 23 has a thickness equivalent to two sheets, and the central part has a thickness equivalent to one sheet. Therefore, the edge is thicker than the center. As a result, when the aerodynamic force fed from the pipe 21 is supplied to the central portion, it can move by itself within the central portion. That is, air can be supplied almost uniformly to the entire air bag 22, and the arm is compressed as a whole and uniformly. Therefore, it is possible to prevent a problem that the pressure is biased and cause discomfort, and it is possible to improve the measurement accuracy.

[0025] Further, since the edge portion of the air bag 22 has a hinge function, it is necessary to increase the force in order to expand it. As described above, the air bag 22 can be expanded in advance by making the thickness of the mesh sheet 23 at the edge of the air bag 22 thicker than the central portion. As a result, air can flow smoothly into the edge of the air bag 22.

Further, the mesh-like sheet 23 of the present embodiment can be made thicker at the peripheral edge than at the center by simply cutting and bending the sheet. Therefore, it can be manufactured easily, and the manufacturing cost can be reduced compared to a spacer manufactured by injection molding or the like.

[0026] Here, preferably, there is a predetermined gap between the end portion in the air bag 22 and the outer end portions of the upper bent portion 231, the lower bent portion 232, the right bent portion 233, and the left bent portion 234. It is good to provide a gap. In this way, the upper flow path 241, the lower flow path 242, the right flow path 243, and the left flow path 244 (rectangular annular shape in which each flow path is communicated with the inner peripheral edge of the air bag 22 by the predetermined gap. Are formed). Therefore, air can be efficiently supplied to the peripheral edge portion of the air bag 22. In the present embodiment, the mesh sheet 23 is not fixed to the air bag 22, but the present invention is not limited to this. For example, upper channel 241 In order to secure the lower flow path 242, the right flow path 243, and the left flow path 244, the mesh sheet 23 may be fixed to the air bag 22 by partially bonding or the like.

[0027] In the present embodiment, since the mesh sheet 23 has a restoring force, the lower side and the center of the upper side bent portion 231, the lower side bent portion 232, the right side bent portion 233, and the left side bent portion 234 are provided. A gap is formed between the upper surface of the mesh sheet 23. These gaps function as flow paths. Therefore, the force S can be used to supply air to the edge of the air bag 22 more efficiently.

Here, it is preferable that the mesh sheet 23 has suitable elasticity. In this way, when the mesh sheet 23 is stored in the air bag 22, each of the bent portions 231, 23 2, 233, and 234 described above has a spring property, and this spring force causes the air bag 22 to move. Try to spread. Therefore, as the air flows into the air bag 22, each bend is attempted to further expand the edge of the air bag 22 by the folds 231, 232, 233 and 234 forces. Thereby, the inflow of air is performed more efficiently.

In the present embodiment, !! mesh-like sheet 23 is used; however, two or more mesh-like sheets 23 may be overlapped and used. At that time, the edge of the mesh sheet 23 may be bent.

[0028] <Flexible armband>

In FIG. 1, a flexible armband 11 is made of a resin sheet having flexibility. The flexible arm band 11 is formed in a cylindrical shape in a state where the outer end portion is wrapped around the inner end portion. Further, the flexible arm band 11 of the present embodiment is thinned in order to improve the followability to the arm shape. As a result, the shape restoring force of the flexible armband 11 is very small.

Furthermore, the flexible armband 11 has a cylindrical body-compressing air bag 2 attached to the inner surface. The living body-compressing air bag 2 has a pipe 21 protruding in the arm direction, and air is fed through the pipe 21 when measuring blood pressure.

[0029] <Tightening means>

The tightening means 3 of this embodiment includes a belt 31 as a tightening belt, a metal fitting 32, a hook-and-loop fastener 33 and a handle 34. Benoleto 31 is a foldable cloth belt. The This benolet 31 is wound around the flexible arm band 11. A portion of the benolet 31 is sewn to the flexible armband 11 so as not to come out of the flexible armband 11. Further, the belt 31 has a rectangular annular metal fitting 32 into which the other end is inserted at one end. Further, the belt 31 is provided with a hook-and-loop fastener 33 as a fixing means on the surface corresponding to the other end and the measurable diameter d. Further, a handle 34 that is engaged with the metal fitting 32 is attached to the other tip.

Here, preferably, the handle 34 is locked to the metal fitting 32 when the flexible armband 11 is expanded to the maximum diameter. That is, the length of the belt 31 may be set in this way. In this way, the tightening means 3 maintains the inner end of the flexible armband 11 in a state of being wound inside the outer end. That is, it is possible to prevent a problem that the inner end portion is out of a predetermined position (a position where the inner end portion is wound inside the outer end portion), for example, located outside the outer end portion. Therefore, when the tightening means 3 is released, the flexible arm band 11 is always in a state where tightening can be started (the arm can be easily inserted and tightened normally using the tightening means 3). Is done. As a result, the operability when inserting the arm into the flexible armband 11 can be improved.

[0031] The usage method and operation of the sphygmomanometer wristband 1 having the above-described configuration will be described.

First, the sphygmomanometer armband 1 of the present embodiment is maintained in a state where the flexible armband 11 is expanded to the maximum diameter by the rigidity of the flexible armband 11 and the fastening means 3. Yes. Therefore, the user of the sphygmomanometer armband 1 for measuring blood pressure can easily insert the arm used for measurement into the sufficiently expanded flexible armband 11.

[0032] Next, the user places the sphygmomanometer armband 1 on a desk or the like so that the handle 34 faces upward, and pulls the handle 34 in the tightening direction. When the handle 34 is pulled in the tightening direction, the belt 31 wound around the flexible arm band 11 tightens the flexible arm band 11 from the entire circumferential direction.

Subsequently, when the user feels an appropriate feeling of pressure necessary for the measurement, the belt 31 is folded back with the metal fitting 32 as a fulcrum, and the belt fastener 33 is brought into contact with each other to fix the belt 31. Thereby, the clamped state of the flexible armband 11 to the arm is maintained.

Next, air is sent into the air bag 22 through the pipe 21. Sent to air bag 22 Air is efficiently supplied to the edge of the air bag 22 via the center of the mesh sheet 23, the upper flow path 241, the lower flow path 242, the right flow path 243, and the left flow path 244. be able to. As a result, the air is supplied to the entire air bag 22 almost uniformly, and the arms are pressed uniformly and uniformly. Therefore, it is possible to prevent problems such as uneven pressure and uncomfortable feeling, and to improve measurement accuracy.

[0034] Next, when the blood pressure measurement result is displayed and the air is removed from the living body compression air bag 2, the user lifts the handle 34, releases the joined state between the hook-and-loop fasteners 33, Release the force with handle 34. At this time, when the joined state between the hook-and-loop fasteners 33 is released, the flexible armband 11 is surely and automatically expanded by the restoring force of the flexible armband 11. As a result, the belt 31 moves in the opening direction so as to be pulled, and is expanded to the maximum diameter D. Then, the handle 34 is locked to the metal fitting 32. At this time, the flexible arm band 11 is maintained in a state in which the arm can be easily inserted and the tightening means 3 can be normally tightened.

Yes

Subsequently, the user takes out the left arm from the air bag 2 for compressing the living body, returns the sphygmomanometer arm band 1 to the original place, and ends the blood pressure measurement.

Thus, according to the air bag 2 for compressing a living body of the present embodiment, the central portion of the mesh sheet 23, the upper channel 241, the lower channel 242, the right channel 243, and the left channel 244 are provided. Air can be efficiently supplied to the edge of the air bag 22 via the air bag 22. As a result, the air is supplied to the entire air bag 22 almost uniformly, and the arm is squeezed as a whole and uniformly. Therefore, it is possible to prevent the problem of uncomfortable feelings due to partial pressure, and to measure the blood pressure accurately.

The present embodiment corresponds to claims 1 to 5 and has a first feature that the edge of the mesh sheet 23 is thicker than the center. On the other hand, the first feature may be that the spacer is a sheet in which through holes penetrating from the upper surface to the lower surface are formed vertically and horizontally.

Next, a second embodiment (corresponding to claims 7 to 10) of a biocompression air bag characterized in that the spacer is a sheet having a through-hole formed therein is a drawing. This will be explained with reference to. [0036] [Second Embodiment of Air Bag for Living Body Compression]

The first feature of the air bag for living body compression of the present embodiment is that the spacer is a sheet in which through holes are formed, as compared to the air bag 2 for living body compression of the first embodiment. No. Other structures are almost the same as those in the first embodiment (see FIGS. 2 and 3).

[0037] The living body compression air bag 2 of the first embodiment uses a mesh sheet 23 having a substantially regular hexagonal gap as a spacer. However, also in this embodiment, the mesh sheet 23 can be used as a spacer.

Further, the spacer of the present embodiment is not limited to the mesh sheet 23. In other words, a sheet having various structures can be used as long as it is a sheet in which through holes (including gaps) penetrating from the upper surface to the lower surface are formed vertically and horizontally.

Next, the sheets having various structures will be described with reference to the drawings.

FIG. 4 is a schematic enlarged view for explaining a sheet used in the second embodiment of the air bag for living body compression of the present invention, (a) is a plan view of the first example, (b) ) Is a perspective view of the second example, (c) is a plan view of the third example, and (d) is a plan view of the fourth example.

In the rectangular mesh sheet 201 shown in FIG. 4a), fibers are woven in the vertical direction and the horizontal direction, and a substantially square gap is formed between the fibers.

Further, in the rhombus mesh sheet 202 shown in FIG. 4 (b), a substantially rhombic gap is formed between the woven fibers. Further, for example, a hemispherical projection 203 is disposed at the intersection of the fibers. In this way, the contact area between the spacer and the air bag inner wall surface is further reduced by the protrusion 203, and it is possible to avoid contact with each other. Further, the plate-like sheet 204 shown in FIG. 4 (c) has circular holes 205 arranged in a staggered pattern. In addition, the plate-like sheet 206 shown in FIG. 4 (d) has a large circular hole 207 arranged in a parallel shape, and further has a small circular hole 208 in the center of the four large circular holes 207 adjacent to each other. It is arranged.

As described above, according to the air bag for compressing a living body of this embodiment, the air resistance can be made as small as possible, and air can be smoothly flowed in. Further, since the through holes are formed vertically and horizontally (in the vertical direction and the horizontal direction), the air flow can be made uniform. As a result, air can be supplied almost uniformly to the entire air bag, and the arm is compressed uniformly and uniformly. Therefore, to prevent problems such as unbalanced pressure and discomfort In both cases, measurement accuracy can be improved.

[0040] The biological compression air bag of the present invention has been described with reference to the preferred embodiment. However, the biocompression air bag according to the present invention is not limited to the embodiment described above. That is, it goes without saying that various modifications can be made within the scope of the present invention.

For example, as shown in FIG. 5, the corners of the upper bent portion 231a, the lower bent portion 232a, the right bent portion 233a, and the left bent portion 234a are cut to about 45 °, and the upper left channel 251 The air bag 2a for body compression may be formed with the path 252, the lower right channel 253, and the upper right channel 254. In this way, air is supplied from the center of the mesh sheet 23a to the corner via the upper left channel 251, the lower left channel 252, the lower right channel 253, and the upper right channel 254. . Therefore, it is possible to more reliably avoid the problem that the four corners of the air bag 22 do not expand. This modified embodiment corresponds to claim 6.

Industrial applicability

[0041] As described above, the air bag for living body compression of the present invention is not limited to the case where it is used for an arm band for a sphygmomanometer. For example, it can be effectively used as an air bag for living body compression for hemostasis. Can be applied.

Claims

The scope of the claims

[1] A living body compression air bag in which a spacer is housed inside an air bag,

An air bag for compressing a living body, wherein a thickness of the spacer at an edge portion inside the air bag is made thicker than a thickness of a central portion of the spacer.

[2] The air bag for biocompression according to claim 1, wherein the spacer is either a mesh sheet or a porous sheet.

[3] The mesh sheet or porous sheet according to claim 2, wherein the mesh sheet or the porous sheet has a bent portion in the vicinity of the edge inside the air bag, and the bent portions facing each other are separated from each other. Air bag for body compression.

[4] The living body compression according to claim 3, wherein the mesh sheet or porous sheet has a rectangular shape, and the bent portions are formed on each side of the mesh sheet or porous sheet. Air bag.

5. The biocompression air bag according to claim 4, wherein a predetermined gap is provided between an end portion inside the air bag and an outer peripheral side end portion of the bent portion.

[6] A flow path that connects the corner portion and the central portion of the mesh sheet or porous sheet by using the bent portion at the corner portion of the rectangular mesh sheet or porous sheet. The air bag for living body compression according to claim 4 or 5, wherein the air bag is formed.

[7] An air bag for living body compression in which a spacer is housed inside an air bag,

The living body compression air bag according to claim 1, wherein the spacer is a sheet in which through holes penetrating from the upper surface to the lower surface are formed vertically and horizontally.

[8] The air bag for compressing a living body according to [7], wherein the sheet is a mesh sheet.

[9] The air bag for biocompression according to claim 7 or 8, wherein a thickness of the spacer at an edge portion of the air bag is made thicker than a thickness of a central portion of the spacer. .

10. The living body compression air according to claim 9, wherein the spacer has a bent portion in the vicinity of an edge inside the air bag, and the corresponding bent portions are separated from each other. bag.