JP2004041599A - Hemostatic tool - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a hemostatic tool which obtains an excellent hemostatic effect. <P>SOLUTION: The hemostatic tool 1 includes a flexible band 2 wound on a site which should be subjected to a hemostasis of a wrist 500 (limbs), a surface fastener 3 for fixing the band 2 in a state that the band 2 is wound on the wrist 500, a bendable plate 4 formed of a material harder than the band 2 and bent at least at a part toward an inner peripheral side, a balloon 5 installed at the inside of the plate 4 and expanding by filling a fluid, and an auxiliary balloon 6 installed between the plate 4 and the balloon 5 in such a manner that the part is superposed with the balloon 5 to press the balloon 5. The interior of the balloon 5 communicates with that of the auxiliary balloon 6 through a communicating part 12. Both the balloon 5 and the auxiliary balloon 6 expand by filling fluids in the balloon 5 and the auxiliary balloon 6. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a hemostatic device.
[0002]
[Prior art]
When a catheter or the like is percutaneously inserted into a blood vessel to perform treatment, examination, or the like, it is necessary to stop the puncture site after removing the catheter or the like. There is known a hemostatic device which is used to perform this hemostasis, is attached so as to be wrapped around a part of the arm or leg having a puncture site, and presses a puncture site to be stopped.
[0003]
However, in the conventional hemostatic device, the pressing direction of the portion to be stopped is almost vertically downward from the top, but the pressing direction is not sufficient in the hemostatic effect, and the hemostasis is not completely stopped or the hemostasis is not completed. It took a long time to do so.
[0004]
In addition, in the conventional hemostatic device, since not only the puncture site to be stopped but also the surrounding area is compressed, other blood vessels and nerves are compressed, which may cause numbness and poor circulation. there were.
[0005]
[Problems to be solved by the invention]
An object of the present invention is to provide a hemostatic device that can obtain an excellent hemostatic effect.
[0006]
[Means for Solving the Problems]
Such an object is achieved by the present invention described in the following (1) to (15).
[0007]
(1) a flexible band which is wrapped around a part of the limb where hemostasis is to be performed;
Fixing means for fixing the band in a state wound around the limb,
A curved plate made of a material harder than the band body, at least a part of which is curved toward an inner peripheral side,
A balloon that is installed inside the curved plate and expands by injecting a fluid,
A hemostatic device comprising: a pressing member that is provided between the curved plate and the balloon so that at least a part thereof overlaps the balloon, and that presses the balloon.
[0008]
(2) The hemostatic device according to (1), wherein the pressing member presses the balloon toward a substantially central portion of the limb.
[0009]
(3) The hemostatic device according to (1) or (2), wherein the pressing member includes an auxiliary balloon configured to press the balloon by a pressure of a fluid filled therein.
[0010]
(4) The hemostatic device according to (3), wherein the auxiliary balloon is expanded by injecting a fluid.
[0011]
(5) The hemostatic device according to the above (4), further comprising a communication portion that communicates the inside of the balloon with the inside of the auxiliary balloon.
[0012]
(6) The hemostatic device according to any one of (1) to (5), wherein the pressing member is smaller than the balloon.
[0013]
(7) The hemostatic device according to any one of (1) to (6), wherein the pressing member is located near one end of the curved plate in a longitudinal direction of the band.
[0014]
(8) The hemostatic device according to any one of (1) to (7), wherein the balloon is located at a position closer to one end of the curved plate in the longitudinal direction of the band.
[0015]
(9) The hemostatic device according to the above (8), wherein the curved plate has a portion having a radius of curvature smaller than a central portion thereof at least on a side where the balloon is biased.
[0016]
(10) The hemostatic device according to any one of (1) to (9), wherein the balloon has only one side connected to the band.
[0017]
(11) The hemostatic device according to any one of (1) to (10), wherein the pressing member has only one side connected to the band.
[0018]
(12) a flexible band which is wound around a part of the limb where hemostasis is to be performed;
Fixing means for fixing the band in a state wound around the limb,
A curved plate made of a material harder than the band body, at least a part of which is curved toward an inner peripheral side,
A hemostatic device including a balloon installed inside the curved plate and expanding by injecting a fluid,
The hemostatic device according to claim 1, wherein only one side of the balloon is connected to the band.
[0019]
(13) The hemostatic device according to the above (12), wherein the balloon is located on one side of the curved plate in a longitudinal direction of the band, and only one end is connected to the band.
[0020]
(14) The hemostatic device according to the above (13), wherein the curved plate has a portion having a smaller radius of curvature than a central portion thereof, at least on a side where the balloon is biased.
[0021]
(15) The hemostatic device according to any one of (1) to (14), wherein the band and the balloon are made of the same or the same material.
[0022]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, a hemostatic device of the present invention will be described in detail based on a preferred embodiment shown in the accompanying drawings.
[0023]
<First embodiment>
FIG. 1 is a bottom view showing the first embodiment of the hemostatic device of the present invention (a state in which the inner surface side is visible when worn on a wrist), and FIG. 2 is a cross-sectional view showing a use state of the hemostatic device shown in FIG. .
[0024]
The hemostatic device 1 shown in FIGS. 1 and 2 removes a catheter or the like percutaneously inserted into an artery from a puncture hole formed in a wrist 500 (limb) for the purpose of treatment, examination, diagnosis, etc. The band 2 is used to stop the bleeding of the blood, and the band 2 is wound around the wrist 500; the hook-and-loop fastener 3 is a fixing means for fixing the band 2 around the wrist 500; the curved plate 4; And an auxiliary balloon 6.
[0025]
The band 2 is a flexible band-shaped member. As shown in FIG. 2, the band 2 is wound around the outer periphery of the wrist 500, and is attached to the wrist 500 such that portions near both ends are overlapped with each other. The overlapping portion of the band 2 is fixed (joined) by a surface fastener 3 described later.
[0026]
The constituent material of the belt 2 is not particularly limited. For example, polyvinyl chloride, polyethylene, polypropylene, polybutadiene, polyolefin such as ethylene-vinyl acetate copolymer (EVA), polyethylene terephthalate (PET), polybutylene terephthalate Various thermoplastic elastomers such as polyester, polyvinylidene chloride, silicone, polyurethane, polyamide elastomer, polyurethane elastomer, polyester elastomer such as (PBT), or any combination thereof (blended resin, polymer alloy, laminate, etc.) Is mentioned.
[0027]
Further, the band 2 is preferably substantially transparent. Thereby, the affected part can be visually recognized from the outside.
[0028]
A curved plate holding portion 21 for holding a curved plate 4 described later is formed at the center of the band 2. The curved plate holding portion 21 has a separate band-shaped member on the outer surface side (or the inner surface side) such as fusion (heat fusion, high frequency fusion, ultrasonic fusion, or the like) or adhesion (adhesion with an adhesive or a solvent). By being joined by the method, it is doubled and holds the curved plate 4 inserted in those gaps.
[0029]
A male side (or female side) 31 of a hook-and-loop fastener 3 generally called a Velcro (registered trademark) is installed on an inner surface side (front side of the paper surface of FIG. 1) of a portion near the left end in FIG. The female side (or male side) 32 of the hook-and-loop fastener 3 is installed (fixed) on the outer surface side (the back side of the paper surface in FIG. 1) of the portion near the right end in FIG. Have been. As shown in FIG. 2, the male body 31 and the female side 32 of the hook-and-loop fastener 3 are joined, so that the band 2 is attached to the wrist 500. The fixing means for fixing the band 2 wound around the wrist 500 is not limited to the hook-and-loop fastener 3, but may be, for example, a snap, a button, a clip, or a frame member through which the end of the band 2 passes. Good.
[0030]
The curved plate 4 is held by the band 2 by being inserted between the doubly formed curved plate holding portions 21 of the band 2.
[0031]
The curved plate 4 has a shape in which at least a part thereof is curved toward the inner peripheral side. The curved plate 4 is made of a material harder than the band 2 and keeps a substantially constant shape.
[0032]
As shown in FIG. 1, in the present embodiment, the curved plate 4 has a shape that is long in the longitudinal direction of the band 2. As shown in FIG. 2, a central portion 41 in the longitudinal direction of the curved plate 4 has a substantially flat shape without being curved, and is provided on both sides of the central portion 41 toward the inner peripheral side, respectively. In addition, a curved portion 42 that is curved along the longitudinal direction of the band 2 (the circumferential direction of the wrist 500) is formed. That is, the radius of curvature _{R 2} of the curved portion 42, the curvature of the central portion 41 radius _{R 1} (in the illustrated configuration, _{R 1} is nearly infinite) smaller.
[0033]
The constituent material of the curved plate 4 is not particularly limited. For example, acrylic resin, polyvinyl chloride (particularly hard polyvinyl chloride), polyethylene, polypropylene, polyolefin such as polybutadiene, polystyrene, poly- (4-methylpentene- 1), polycarbonate, ABS resin, polymethyl methacrylate (PMMA), polyacetal, polyarylate, polyacrylonitrile, polyvinylidene fluoride, ionomer, acrylonitrile-butadiene-styrene copolymer, polyethylene terephthalate (PET), polybutylene terephthalate (PBT) And butadiene-styrene copolymers, aromatic or aliphatic polyamides, and fluorine-based resins such as polytetrafluoroethylene.
[0034]
Further, the curved plate 4 is preferably substantially transparent. Thereby, the affected part can be visually recognized from the outside.
[0035]
Note that the curved plate 4 may not have an uncurved portion such as the central portion 41, that is, may be curved over its entire length.
[0036]
The method of installing the curved plate 4 on the band 2 is not limited to the configuration shown in the figure, and may be bonded to the inner surface or the outer surface of the band 2 by a method such as fusion or adhesion. Further, the band 2 does not have to go around the wrist 500, and may be, for example, connected to both ends of the curved plate 4 respectively. That is, the band 2 does not need to be present in a portion overlapping the curved plate 4.
[0037]
A balloon 5 made of a flexible material is provided inside the curved plate 4. The balloon 5 is expanded by injecting a fluid (a gas or a liquid such as air), and presses the puncture site 510 of the wrist 500.
[0038]
The balloon 5 is positioned to be offset to one end of the curved plate 4 in the longitudinal direction. That is, in the illustrated configuration, the balloon 5 is positioned so as to substantially overlap the right half of the curved plate 4 in FIG.
[0039]
The constituent material of the balloon 5 is not particularly limited, and for example, the same material as the constituent material of the band 2 described above can be used. The balloon 5 is preferably made of the same or the same material as the band 2. Thereby, joining with the belt 2 by fusion can be easily performed, and it can be manufactured easily.
[0040]
Also, the balloon 5 is preferably substantially transparent. Thereby, the affected part can be visually recognized from the outside.
[0041]
The structure of the balloon 5 may be, for example, a bag formed by sealing the edges of a sheet material made of the above-described material by a method such as fusion or adhesion. In the illustrated configuration, the balloon 5 is substantially square when not expanded.
[0042]
Such a balloon 5 is connected to the band 2 via a flexible connecting portion 11. In the present embodiment, the balloon 5 is connected to the band 2 via the connecting portion 11 only on the side offset to the curved plate 4, that is, only on the right side in FIG. The connecting portion 11 has a relatively short substantial length, so that the balloon 5 is anchored at a position offset with respect to the curved plate 4. The connecting portion 11 is preferably made of the same material as the balloon 5.
[0043]
In the present embodiment, since the balloon 5 is connected to the band 2 on only one side by the connecting portion 11, the balloon 5 assumes a slightly inclined posture in the state shown in FIG. The pressure F acts in an inclined direction.
[0044]
As shown in FIG. 1, an injection section 7 for injecting a fluid into the balloon 5 is connected to the balloon 5. The injection section 7 has a flexible tube 71 whose base end is connected to the balloon 5 and whose lumen communicates with the inside of the balloon 5, a bag 72 installed at the distal end of the tube 71, And a tubular connector 73 joined to the bag body 72.
[0045]
To expand (inflate) the balloon 5, a distal end protruding portion of a syringe (not shown) is inserted into the connector 73, and a pusher of the syringe is pressed to cause the fluid in the syringe to flow through the injecting portion 7 through the balloon 5. Inject into. After injecting the fluid into the balloon 5, when the distal end protrusion of the syringe is removed from the connector 73, the check valve incorporated in the connector 73 closes to prevent leakage of the fluid, and the balloon 5 is maintained in an expanded state. .
[0046]
As shown in FIG. 2, an auxiliary balloon 6 made of a flexible material is installed between the curved plate 4 and the balloon 5 so that all or a part of the auxiliary balloon 6 overlaps the balloon 5. I have. The auxiliary balloon 6 functions as a pressing member that presses the balloon 5.
[0047]
The auxiliary balloon 6 presses the balloon 5 in a direction substantially toward the center 520 of the wrist 500 as indicated by an arrow f in FIG. 2 due to the pressure of the fluid filled therein. By receiving such a pressing force from the auxiliary balloon 6, the balloon 5 moves the puncture site 510 from top to bottom in the vertical direction (perpendicular to the surface of the wrist 500) as shown by the arrow F in FIG. Direction), but in an inclined direction (direction toward the center 520 of the wrist 500). As a result, in the present invention, a better hemostatic effect can be obtained and hemostasis can be more reliably performed as compared with the case where the puncture site 510 is pressed (compressed) vertically from above to below.
[0048]
In the illustrated configuration, the balloon 5 is not in contact with the curved plate 4 (via the band 2) in the state shown in FIG. 2, but a part of the balloon 5 is in contact with the curved plate 4 (with the band 2 Contact).
[0049]
The constituent material of the auxiliary balloon 6 is not particularly limited, and for example, the same material as the constituent material of the above-described band 2 can be used. Further, the auxiliary balloon 6 is preferably substantially transparent. Thereby, the affected part can be visually recognized from the outside. The structure of the auxiliary balloon 6 can be the same as the structure of the balloon 5.
[0050]
In the present embodiment, the width of the auxiliary balloon 6 in the longitudinal direction of the band 2 is smaller than that of the balloon 5, so that the size of the auxiliary balloon 6 is smaller than that of the balloon 5. Press. Thereby, the direction of the pressing force F from the balloon 5 to the puncture site 510 can be more reliably inclined.
[0051]
In the present embodiment, the auxiliary balloon 6 is located near the right end in FIG. 2 in the longitudinal direction of the curved plate 4. Thereby, the direction of the pressing force f from the auxiliary balloon 6 to the balloon 5 can be more reliably directed to the center portion 520 of the wrist 500, and as a result, the pressing force from the balloon 5 to the puncture site 510 The direction of F can be inclined more reliably.
[0052]
Further, in the present embodiment, as described above, the curved plate 4 has the curved portion 42 having a smaller radius of curvature than the central portion 41 on the side where the balloon 5 is biased (the right side in FIG. 2). . Then, the auxiliary balloon 6 comes into contact with the curved portion 42 of the curved plate 4 or a portion on the right side thereof in FIG. 2 (via the band 2). Thereby, the direction of the force that the auxiliary balloon 6 receives from the curved plate 4, in other words, the normal direction of the curved plate 4 where the auxiliary balloon 6 contacts (via the band 2) is the center of the wrist 500. It will be inclined in a direction toward 520. As a result, the direction of the pressing force f or the pressing force F can be more reliably inclined.
[0053]
In this embodiment, a part of the balloon 5 and a part of the auxiliary balloon 6 are joined to each other by a method such as fusion or adhesion. A communication part (opening) 12 that connects the inside of the balloon 5 and the inside of the auxiliary balloon 6 is formed at the joint. As a result, when the fluid is injected into the balloon 5 as described above, a part of the injected fluid flows into the auxiliary balloon 6 via the communication portion 12, and the auxiliary balloon 6 expands as the balloon 5 expands. I do. Thereby, both can be expanded by one operation, and the operability is excellent.
[0054]
The auxiliary balloon 6 may be further joined to the balloon 5 at a portion near the connecting portion 11 (right end in FIG. 2) in addition to a portion near the communicating portion 12. Thereby, the balloon 5 can be pressed more reliably, and the force for pushing up the curved plate 4 is increased, so that the curved plate 4 is more easily separated from the wrist 500.
[0055]
The configuration is not limited to the illustrated configuration, and the auxiliary balloon 6 may be configured to expand by injecting a fluid separately from the balloon 5.
[0056]
Further, the auxiliary balloon 6 is not limited to the one that is expanded by injecting a fluid at the time of use as in the present embodiment, but may be one that is filled and expanded from the beginning.
[0057]
In the present invention, the pressing member that presses the balloon 5 is not limited to the auxiliary balloon 6, and may be, for example, a sponge-like substance, an elastic material, an aggregate of fibers such as cotton, or a combination thereof. It may be a member such as a configured pad.
[0058]
Next, a method of using the hemostatic device 1 will be described.
[1] Before attaching the hemostatic device 1 to the wrist, the balloon 5 and the auxiliary balloon 6 are in an unexpanded state. In the case of the wrist 500, the puncture site 510 into the artery is usually located at a position on the inside of the wrist 500 (on the side where the tendon is present), which is offset toward the thumb. While pressing the puncture site 510 with a finger or the like, the balloon 5 is wound around the wrist 500 such that the balloon 5 is positioned on the puncture site 510, and the vicinity of both ends of the band 2 is fixed with the hook-and-loop fastener 3 ( Bonding).
[0059]
[2] When the hemostatic device 1 is mounted on the wrist 500, a syringe (not shown) is connected to the connector 73 of the injection section 7, and fluid is injected into the balloon 5 and the auxiliary balloon 6 as described above. And the auxiliary balloon 6 is expanded. According to the present invention, the degree of expansion of the balloon 5 and the auxiliary balloon 6, that is, the pressing force on the puncture site 510 can be easily adjusted depending on the case by the injection amount of the fluid at this time, and the operability is excellent. .
[0060]
[3] After the balloon 5 and the auxiliary balloon 6 are expanded, the syringe is detached from the connector 73. Thereby, the balloon 5 and the auxiliary balloon 6 maintain the expanded state, and the state of pressing the puncture site 510 is maintained (see FIG. 2). In this state, the balloon 5 locally presses the puncture site 510 (and its surroundings), and the curved plate 4 is separated from the surface of the wrist 500 by the expansion of the balloon 5 and the auxiliary balloon 6, so that the curved plate 4 is attached to the wrist 500. It becomes difficult to contact. As a result, the puncture site 510 (and its surroundings) is concentrated and receives a compressive force, so that the hemostatic effect is high and it is possible to avoid compressing other blood vessels and nerves that do not require hemostasis. Numbness and poor circulation can be effectively prevented.
[0061]
<Second embodiment>
FIG. 3 is a cross-sectional view illustrating a use state of the hemostatic device according to the second embodiment of the present invention.
[0062]
Hereinafter, a second embodiment of the hemostatic device of the present invention will be described with reference to this drawing, but the description will be focused on the differences from the above-described embodiment, and description of the same items will be omitted.
[0063]
The hemostatic device 1 ′ of the present embodiment is the same as that of the first embodiment except that the auxiliary balloon 6 is fixed (connected) to the band 2 via a flexible fixing portion (connecting portion) 13. Is the same as
[0064]
That is, in the present embodiment, the auxiliary balloon 6 is fixed (connected) to the band 2 on the same side (the right side in FIG. 3) as the connecting part 11 of the balloon 5 via the fixing part 13, The auxiliary balloon 6 is more easily and reliably inclined. Thereby, in the hemostatic device 1 'of the present embodiment, the pressing force f against the balloon 5 is more likely to act in the inclined direction (direction in which the balloon 5 is directed substantially toward the center portion 520 of the wrist 500), and therefore, more. Excellent hemostatic effect can be obtained.
[0065]
<Third embodiment>
FIG. 4 is a cross-sectional view showing a use state of the hemostatic device according to the third embodiment of the present invention.
[0066]
Hereinafter, a third embodiment of the hemostatic device of the present invention will be described with reference to FIG.
[0067]
The hemostatic device 1 ″ of the present embodiment is the same as the first embodiment except that it does not have the auxiliary balloon 6.
[0068]
That is, in the present embodiment, there is no auxiliary balloon 6, and the balloon 5 is in contact with the curved plate 4 (via the band 2). Since the balloon 5 is connected to the band 2 on only one side by the connecting portion 11, the balloon 5 assumes a slightly inclined posture in the state shown in FIG. Thereby, in the hemostatic device 1 ″ of the present embodiment, the pressing force F against the puncture site 510 acts in an inclined direction (a direction toward the center portion 520 of the wrist 500), and as a result, the first embodiment An excellent hemostatic effect can be obtained as well.
[0069]
Further, similarly to the first embodiment, the balloon 5 is positioned to be offset toward the connecting portion 11 (the right side in FIG. 4) with respect to the curved plate 4. In addition, the curved plate 4 has a curved portion 42 having a smaller radius of curvature than the central portion 41 on the side (right side in FIG. 4) where the balloon 5 is offset. Accordingly, on the right side of the bending portion 42 in FIG. 4, the bending plate 4 presses the balloon 5 in a direction toward the center portion 520 of the wrist 500 (via the band 2). For this reason, in the present embodiment, the pressing force F acts more reliably in the inclined direction.
[0070]
As described above, the hemostatic device of the present invention has been described with respect to the illustrated embodiment, but the present invention is not limited to this, and each part constituting the hemostatic device has an arbitrary configuration capable of exhibiting the same function. Can be replaced by Further, an arbitrary component may be added.
[0071]
In addition, the hemostatic device of the present invention is not limited to a device used by being worn on a wrist, and is used by being worn on any part of an arm or a leg (in the present specification, these are collectively referred to as “limbs”). It can also be applied to appliances.
[0072]
【The invention's effect】
As described above, according to the present invention, an excellent hemostatic effect can be obtained. Further, it is possible to effectively prevent the occurrence of numbness and poor blood circulation on the peripheral side from the site where the hemostatic device is mounted.
[0073]
Further, when the balloon is configured to be located at a position offset to one end in the longitudinal direction of the band of the curved plate, or further, the curved plate has a radius of curvature that is closer to the side where the balloon is offset than the central portion thereof. When a small portion is provided, a better hemostatic effect can be obtained.
[Brief description of the drawings]
FIG. 1 is a bottom view showing the first embodiment of the hemostatic device of the present invention (a state in which the inner surface side when worn on a wrist is visible).
FIG. 2 is a sectional view showing a use state of the hemostatic device shown in FIG.
FIG. 3 is a sectional view showing a use state of a hemostatic device according to a second embodiment of the present invention.
FIG. 4 is a sectional view showing a use state of a hemostatic device according to a third embodiment of the present invention.
[Explanation of symbols]
1, 1 ', 1''hemostatic device 11 connecting portion 12 communicating portion 13 fixing portion 2 band 21 curved plate holding portion 3 surface fastener 31 male side 32 female side 4 curved plate 41 central portion 42 curved portion 5 balloon 6 auxiliary balloon 7 injection part 71 tube 72 bag 73 connector 500 wrist 510 puncture site 520 central part

Claims (15)

A flexible band wound around a part of the limb to be stopped,
Fixing means for fixing the band in a state wound around the limb,
A curved plate made of a material harder than the band body, at least a part of which is curved toward an inner peripheral side,
A balloon that is installed inside the curved plate and expands by injecting a fluid,
A hemostatic device comprising: a pressing member that is provided between the curved plate and the balloon so that at least a part thereof overlaps the balloon, and that presses the balloon. The hemostatic device according to claim 1, wherein the pressing member presses the balloon toward a substantially central portion of the limb. The hemostatic device according to claim 1, wherein the pressing member is configured by an auxiliary balloon that presses the balloon by a pressure of a fluid filled therein. The hemostatic device according to claim 3, wherein the auxiliary balloon is expanded by injecting a fluid. The hemostatic device according to claim 4, further comprising a communication portion that communicates between the inside of the balloon and the inside of the auxiliary balloon. The hemostatic device according to claim 1, wherein the pressing member is smaller than the balloon. The hemostatic device according to claim 1, wherein the pressing member is located near one end of the curved plate in a longitudinal direction of the band. The hemostatic device according to any one of claims 1 to 7, wherein the balloon is located on one side of the curved plate in a longitudinal direction of the band. The hemostatic device according to claim 8, wherein the curved plate has a portion having a radius of curvature smaller than a central portion thereof, at least on a side where the balloon is offset. The hemostatic device according to claim 1, wherein only one side of the balloon is connected to the band. The hemostatic device according to claim 1, wherein only one side of the pressing member is connected to the band. A flexible band wound around a part of the limb to be stopped,
Fixing means for fixing the band in a state wound around the limb,
A curved plate made of a material harder than the band body, at least a part of which is curved toward an inner peripheral side,
A hemostatic device including a balloon installed inside the curved plate and expanding by injecting a fluid,
The hemostatic device according to claim 1, wherein only one side of the balloon is connected to the band. 13. The hemostatic device according to claim 12, wherein the balloon is positioned on one side of the curved plate in a longitudinal direction of the band, and only one end of the balloon is connected to the band. 14. The hemostatic device according to claim 13, wherein the curved plate has a portion having a smaller radius of curvature than a central portion thereof, at least on a side where the balloon is biased. The hemostatic device according to any one of claims 1 to 14, wherein the band and the balloon are made of the same or the same material.

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