JP3974467B2 - Hemostatic device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a hemostatic device.
[0002]
[Prior art]
When a catheter or the like is inserted percutaneously into a blood vessel for treatment or examination, it is necessary to stop the puncture site after removing the catheter or the like. There is known a hemostatic device that is used to perform hemostasis, is attached to be wound around a portion of the puncture site of the arm or leg, and compresses the puncture site to be hemostatic.
[0003]
However, in the conventional hemostatic device, the pressing direction with respect to the portion to be stopped is almost vertically directed from the top to the bottom. However, the pressing direction does not have a sufficient hemostatic effect, and is not completely stopped. Sometimes it took a long time to do.
[0004]
In addition, the conventional hemostatic device compresses not only the puncture site to be stopped but also the entire periphery thereof, so that other blood vessels and nerves may be compressed, resulting in numbness and poor blood circulation. there were.
[0005]
[Problems to be solved by the invention]
An object of the present invention is to provide a hemostatic device capable of obtaining an excellent hemostatic effect.
[0006]
[Means for Solving the Problems]
Such an object is achieved by the present inventions (1) to (10) below.
[0007]
(1) a flexible band wound around a portion of the limb that should be hemostatic;
Fixing means for fixing the belt body around the limb body;
A curved plate made of a material harder than the belt, and at least a part of which is curved toward the inner peripheral side;
A balloon that is installed inside the curved plate and expands by injecting a fluid;
Between the curved plate and the balloon, at least a portion thereof is installed so as to overlap the balloon, and includes a pressing member that presses the balloon ,
The hemostatic device according to claim 1, wherein the balloon is located at one end of the curved plate in the longitudinal direction of the band .
[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 that presses the balloon with the 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 (4), further including a communication portion that communicates the inside of the balloon and 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 the longitudinal direction of the band.
[0015]
(8) The hemostatic device according to any one of (1) to (7), wherein the curved plate has a portion having a radius of curvature smaller than that of a central portion at least on a side where the balloon is offset.
[0016]
(9) The hemostatic device according to any one of (1) to (8) , wherein only one side of the balloon is connected to the band.
[0017]
(10) The hemostatic device according to any one of (1) to (9) , wherein only one side of the pressing member is connected to the belt body.
[0022]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, the hemostatic device of the present invention will be described in detail based on preferred embodiments shown in the accompanying drawings.
[0023]
<First Embodiment>
FIG. 1 is a bottom view showing a first embodiment of the hemostatic device of the present invention (a state in which the inner surface side can be seen when worn on the wrist), and FIG. 2 is a cross-sectional view showing a usage state of the hemostatic device shown in FIG. .
[0024]
The hemostatic device 1 shown in FIG. 1 and FIG. 2 has a puncture site after removing a catheter or the like inserted into the artery percutaneously from a puncture hole formed in the wrist 500 (limb) for the purpose of treatment, examination, diagnosis, etc. 510 is used for hemostasis, the band 2 wound around the wrist 500, the hook-and-loop fastener 3 as a fixing means for fixing the band 2 around the wrist 500, the curved plate 4, and the balloon 5. And an auxiliary balloon 6.
[0025]
The band 2 is a band-shaped member having flexibility. As shown in FIG. 2, the band 2 is wound around the wrist 500 so as to make a round, and is attached to the wrist 500 so that portions near both ends thereof are overlapped with each other. Then, the band 2 is fixed (joined) at the overlapping portion by a surface fastener 3 described later.
[0026]
The constituent material of the band 2 is not particularly limited. For example, polyolefin such as polyvinyl chloride, polyethylene, polypropylene, polybutadiene, ethylene-vinyl acetate copolymer (EVA), polyethylene terephthalate (PET), polybutylene terephthalate. Polyesters such as (PBT), polyvinylidene chloride, silicones, polyurethanes, polyamide elastomers, polyurethane elastomers, polyester elastomers and other thermoplastic elastomers, or any combination thereof (blend resins, polymer alloys, laminates, etc.) Is mentioned.
[0027]
Moreover, it is preferable that the band 2 is substantially transparent. Thereby, an affected part can be visually recognized from the outside.
[0028]
A curved plate holding portion 21 that holds a curved plate 4 to be described later is formed at the center of the band 2. In the curved plate holding portion 21, a separate belt-like member is fused (thermal fusion, high frequency fusion, ultrasonic fusion, etc.) or adhesion (adhesion with an adhesive or a solvent) on the outer surface side (or inner surface side). By joining by the method, it becomes double and holds the curved plate 4 inserted in the gap between them.
[0029]
A male side (or female side) 31 of a hook-and-loop fastener 3 generally called Velcro (registered trademark) or the like is installed on the inner surface side (the front side of the paper surface of FIG. 1) of the band 2 near the left end in FIG. A 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 of FIG. 1) of the band 2 near the right end in FIG. Has been. As shown in FIG. 2, the band 2 is attached to the wrist 500 by joining the male side 31 and the female side 32 of the hook-and-loop fastener 3. The fixing means for fixing the belt 2 in a state of being wound around the wrist 500 is not limited to the hook-and-loop fastener 3, and may be, for example, a snap, a button, a clip, a frame member that passes the end of the belt 2, or the like. Good.
[0030]
The curved plate 4 is held by the belt 2 by being inserted between the double curved plate holding portions 21 of the belt 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 that is harder than the band 2 and maintains 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, the central portion 41 in the longitudinal direction of the curved plate 4 has a flat plate shape with almost no curvature, and both sides of the central portion 41 are directed toward the inner peripheral side. And the curved part 42 curved along the longitudinal direction (circumferential direction of the wrist 500) of the strip | belt body 2 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, and examples thereof include acrylic resins, polyvinyl chloride (particularly hard polyvinyl chloride), polyolefins such as polyethylene, polypropylene, and polybutadiene, polystyrene, and 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 fluorinated resins such as polyester, butadiene-styrene copolymer, aromatic or aliphatic polyamide, and polytetrafluoroethylene.
[0034]
Moreover, it is preferable that the curved plate 4 is substantially transparent. Thereby, an affected part can be visually recognized from the outside.
[0035]
Note that the curved plate 4 may be one that does not have an uncurved portion like the central portion 41, that is, one that is curved over its entire length.
[0036]
Moreover, the method of installing the curved plate 4 on the band 2 is not limited to the configuration shown in the figure. For example, the curved plate 4 may be bonded to the inner surface side or the outer surface side of the band member 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 one connected to both ends of the curved plate 4, for example. That is, the band 2 does not have to exist in the portion overlapping the curved plate 4.
[0037]
Inside the curved plate 4, a balloon 5 made of a flexible material is installed. The balloon 5 is expanded by injecting a fluid (a gas such as air or a liquid) and compresses the puncture site 510 of the wrist 500.
[0038]
The balloon 5 is positioned so as to be offset toward one end in the longitudinal direction of the curved plate 4. That is, in the illustrated configuration, the balloon 5 is positioned so as to overlap with the substantially right half side of the curved plate 4 in FIG.
[0039]
The constituent material of the balloon 5 is not particularly limited, and for example, the same constituent material as that of the band 2 described above can be used. The balloon 5 is preferably made of the same or the same kind of material as that of the band 2. Thereby, joining with the strip | belt body 2 by melt | fusion can be performed easily, and it can manufacture easily.
[0040]
The balloon 5 is preferably substantially transparent. Thereby, an affected part can be visually recognized from the outside.
[0041]
The structure of the balloon 5 can be formed into a bag shape by sealing the edge 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 belt body 2 through a connecting part 11 having flexibility. In the present embodiment, the side of the balloon 5 that is offset from the curved plate 4, that is, the right side in FIG. As for this connection part 11, the substantial length is made comparatively short, and, thereby, the balloon 5 is tethered in the position offset with respect to the curved board 4. FIG. 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 only on one side by the connecting portion 11, the balloon 5 assumes a slightly inclined posture in the state shown in FIG. 2, and as a result, the puncture site 510 is pushed. The pressure F acts in the inclined direction.
[0044]
As shown in FIG. 1, the balloon 5 is connected to an injection portion 7 that injects a fluid into the balloon 5. The injection portion 7 has a flexible tube 71 whose base end portion is connected to the balloon 5 and whose lumen communicates with the inside of the balloon 5, a bag body 72 installed at the distal end portion of the tube 71, It is comprised with the tubular connector 73 joined to the bag body 72. FIG.
[0045]
When the balloon 5 is expanded (expanded), a distal end protruding portion of a syringe (not shown) is inserted into the connector 73, and a pusher of the syringe is pushed, so that the fluid in the syringe is passed through the injecting portion 7. Inject into. After injecting the fluid into the balloon 5, if the tip of the syringe is removed from the connector 73, the check valve built in the connector 73 is closed to prevent the fluid from leaking, 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 part of the auxiliary balloon 6 overlaps the balloon 5. Yes. The auxiliary balloon 6 functions as a pressing member that presses the balloon 5.
[0047]
The auxiliary balloon 6 presses the balloon 5 substantially in the direction toward the center portion 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 in a vertical direction from the top to the bottom (perpendicular to the surface of the wrist 500) as shown by an arrow F in FIG. 2. It is pressed (compressed) in an inclined direction (a direction toward the central portion 520 of the wrist 500), not in the direction). Thereby, in this invention, compared with the case where the puncture site | part 510 is pressed (pressed) in the perpendicular | vertical direction from the top to the bottom, the more superior hemostatic effect is acquired and it can stop hemostasis more reliably.
[0048]
In the configuration shown in FIG. 2, the balloon 5 is not in contact with the curved plate 4 (via the band 2) in the state shown in FIG. Contact).
[0049]
The constituent material of the auxiliary balloon 6 is not particularly limited, and for example, the same constituent material as that of the band 2 described above can be used. The auxiliary balloon 6 is preferably substantially transparent. Thereby, an affected part can be visually recognized from the outside. The auxiliary balloon 6 can have the same structure as the balloon 5.
[0050]
In the present embodiment, the auxiliary balloon 6 has a width in the longitudinal direction of the band 2 that 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 inclined more reliably.
[0051]
In the present embodiment, the auxiliary balloon 6 is positioned 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 surely directed to the central portion 520 of the wrist 500, and as a result, the pressing force from the balloon 5 to the puncture site 510 is achieved. The direction of F can be inclined more reliably.
[0052]
Furthermore, in this 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 offset (the right side in FIG. 2). . Then, the auxiliary balloon 6 contacts the curved portion 42 of the curved plate 4 or a portion on the right side in FIG. 2 (via the belt 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 and the pressing force F can be tilted more reliably.
[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 portion (opening portion) 12 that connects the inside of the balloon 5 and the inside of the auxiliary balloon 6 is formed at the joint portion. Thereby, when the fluid is injected into the balloon 5 as described above, a part of the injected fluid flows into the auxiliary balloon 6 through the communication portion 12, and the auxiliary balloon 6 is expanded as the balloon 5 is expanded. To do. Thereby, both can be expanded by one operation and it is excellent in operativity.
[0054]
The auxiliary balloon 6 may be further joined to the balloon 5 at a portion close to the connecting portion 11 (right end portion in FIG. 2) in addition to the portion near the communication portion 12. Thereby, since the balloon 5 can be pressed more reliably and the force for pushing up the curved plate 4 becomes stronger, the curved plate 4 is more easily separated from the wrist 500.
[0055]
The auxiliary balloon 6 may be configured to be expanded by injecting a fluid separately from the balloon 5.
[0056]
Further, the auxiliary balloon 6 is not limited to being 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 for using the hemostatic device 1 will be described.
[1] Before the hemostatic device 1 is attached to the wrist, the balloon 5 and the auxiliary balloon 6 are not expanded. In the case of the wrist 500, the puncture site 510 to the artery is usually at a position offset toward the thumb side inside the wrist 500 (the side where the tendon is present). While pressing the puncture site 510 with a finger or the like, the band 5 is wrapped around the wrist 500 so 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 ( Join).
[0059]
[2] When the hemostatic device 1 is attached to the wrist 500, a syringe (not shown) is connected to the connector 73 of the injection unit 7, and the fluid is injected into the balloon 5 and the auxiliary balloon 6 as described above. And the auxiliary balloon 6 is expanded. In 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 according to the case by the fluid injection amount at this time, and the operability is excellent. .
[0060]
[3] When 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 an expanded state, and the compression state to the puncture site | part 510 is maintained (refer FIG. 2). In this state, the balloon 5 locally presses the puncture site 510 (and its surroundings), and due to the expansion of the balloon 5 and the auxiliary balloon 6, the curved plate 4 is separated from the surface of the wrist 500 and applied to the wrist 500. It becomes difficult to touch. As a result, the puncture site 510 (and its surroundings) concentrates and receives a compressive force, so that the hemostasis effect is high and it is possible to avoid pressing other blood vessels or nerves that do not require hemostasis. It is possible to effectively prevent numbness or poor circulation.
[0061]
Second Embodiment
FIG. 3 is a cross-sectional view showing a usage state in the second embodiment of the hemostatic device of the present invention.
[0062]
Hereinafter, the second embodiment of the hemostatic device of the present invention will be described with reference to this figure, but the description will focus on differences from the above-described embodiment, and the description of the same matters 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 belt body 2 via a flexible fixing portion (connecting portion) 13. It is the same.
[0064]
That is, in this embodiment, the auxiliary balloon 6 is fixed (connected) to the band body 2 on the same side (right side in FIG. 3) as the connecting portion 11 of the balloon 5 via the fixing portion 13. The auxiliary balloon 6 is inclined more easily and reliably. Thereby, in the hemostatic device 1 ′ of the present embodiment, it becomes easier to act in a direction in which the pressing force f against the balloon 5 is inclined (a direction in which the balloon 5 is directed substantially toward the center part 520 of the wrist 500), and thus Excellent hemostatic effect is obtained.
[0070]
As mentioned above, although the hemostatic device of this invention was demonstrated about embodiment of illustration, this invention is not limited to this, Each part which comprises a hemostatic device of the arbitrary structures which can exhibit the same function Can be substituted. Moreover, arbitrary components may be added.
[0071]
In addition, the hemostatic device of the present invention is not limited to one used by wearing on the wrist, but is used by attaching to any part of the arm or leg (herein, these are collectively referred to as “limbs”). It can also be applied to instruments.
[0072]
【The invention's effect】
As described above, according to the present invention, an excellent hemostatic effect can be obtained. In addition, it is possible to effectively prevent numbness or poor circulation on the peripheral side from the site where the hemostatic device is attached.
[0073]
In addition, when the curved plate is configured such that the balloon is positioned at a position offset to one end side in the longitudinal direction of the belt body, and further, the curved plate has a radius of curvature more than the central portion on the side where the balloon is offset. When it has a small portion, a more excellent hemostatic effect can be obtained.
[Brief description of the drawings]
FIG. 1 is a bottom view showing a hemostatic device according to a first embodiment of the present invention (a state in which an inner surface side can be seen when worn on a wrist).
FIG. 2 is a cross-sectional view showing a usage state of the hemostatic device shown in FIG.
[Figure 3] Ru sectional view showing a use state in a second embodiment of the hemostatic device of the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1, 1 ' Hemostatic instrument 11 Connection part 12 Communication part 13 Adhering part 2 Band 21 Curved plate holding part 3 Surface fastener 31 Male side 32 Female side 4 Curved plate 41 Central part 42 Curved part 5 Balloon 6 Auxiliary balloon 7 Injection part 71 Tube 72 Bag body 73 Connector 500 Wrist 510 Puncture site 520 Center part

Claims (10)

A flexible band that wraps around the area of the limb that should be hemostatic;
Fixing means for fixing the belt body around the limb body;
A curved plate made of a material harder than the belt, and at least a part of which is curved toward the inner peripheral side;
A balloon that is installed inside the curved plate and expands by injecting a fluid;
Between the curved plate and the balloon, at least a portion thereof is installed so as to overlap the balloon, and includes a pressing member that presses the balloon ,
The hemostatic device according to claim 1, wherein the balloon is located at one end of the curved plate in the longitudinal direction of the band .   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 or 2, wherein the pressing member includes an auxiliary balloon that presses the balloon by the 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 the inside of the balloon with the inside of the auxiliary balloon.   The hemostatic device according to any one of claims 1 to 5, wherein the pressing member is smaller than the balloon.   The hemostatic device according to any one of claims 1 to 6, wherein the pressing member is positioned in the vicinity of one end of the curved plate in the longitudinal direction of the band. The hemostatic device according to any one of claims 1 to 7, wherein the curved plate has a portion having a radius of curvature smaller than that of a central portion at least on a side where the balloon is offset. The hemostatic device according to any one of claims 1 to 8 , wherein only one side of the balloon is connected to the band. The hemostatic device according to any one of claims 1 to 9 , wherein only one side of the pressing member is connected to the band.

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