JP2018171081A - Hemostatic instrument - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a hemostatic instrument improving hemostatic effects by suppressing decrease in a blood flow rate of a radial artery and having excellent convenience capable of facilitating and quickening work until hemostatic treatment is started.SOLUTION: A hemostatic instrument 10 includes: a belt body 20 having flexibility to be wound around an arm in which a radial artery 210 and an ulnar artery 230 travel; a fixing part 30 for fixing the belt body with it wound around the arm; a first expansion part 50 that is connected to the belt body, and expanded by injection of fluid to press a site of the radial artery at which hemorrhage is to be arrested; and a second expansion part 60 that is disposed at a position different from the first expansion part in the longitudinal direction of the belt body and expanded by injection of the fluid to press the ulnar artery. The first expansion part and second expansion part spaced from each other in the longitudinal direction of the belt body are communicated to each other via a communication path 170 configured to allow the fluid to flow.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a hemostatic device for pressing a punctured site to stop bleeding.

  In recent years, a blood vessel such as the radial artery of the arm is punctured, an introducer sheath is introduced into the puncture site, and a catheter or the like is inserted into a lesioned portion such as a blood vessel through the lumen of the introducer sheath to treat percutaneously.・ Inspection is carried out. When such a method is performed, it is necessary to stop bleeding at the puncture site after removing the introducer sheath. In order to perform this hemostasis, a band for wrapping around the puncture site of the arm, a fixing portion for fixing the band in a state of being wound around the puncture site, and a flexible body that is expanded by injecting fluid. In addition, a hemostasis device including an expansion portion that can press a puncture site is known (see, for example, Patent Document 1). This hemostatic device performs hemostasis by directly applying a pressing force acting from the expansion portion to the puncture site.

JP 2004-154413 A

Ivo Bernat, MD et al. , “Efficacy and Safety of Transient Universal Arterial Compression to Recanalize Acctual Radial Occlusion After Transcatalylization” (American 107 in the United States). 1698-1701

  By the way, the radial artery and the ulnar artery branch off from the brachial artery in the vicinity of the elbow and are connected to each other in the palm. For this reason, when only the radial artery is pressed (compressed) for a long time, blood hardly flows into the radial artery, and the blood flow rate of the ulnar artery may excessively increase. As a result, the blood flow volume of the radial artery is reduced, the blood vessel is blocked, and the amount of platelets or the like is reduced, so that it takes a long time to stop bleeding at the puncture site. For this reason, for example, after hemostasis of the puncture site of the radial artery, it is known to press the ulnar artery in order to resume the blocked radial artery (see, for example, Non-Patent Document 1 above).

  For such a problem, for example, the above-described hemostatic device is further provided with an expansion portion for pressing the ulnar artery, and when the radial artery is pressed, excessive blood flow flowing into the ulnar artery by pressing the ulnar artery It is thought that it is possible to prevent a decrease in blood flow in the radial artery.

  However, when the hemostatic device is provided with an expansion portion for pressing the radial artery and an expansion portion for pressing the ulnar artery, when performing hemostasis, an operation of individually injecting fluid into each expansion portion is performed. Therefore, the work up to the start of the hemostatic treatment becomes complicated.

  The present invention has been made to solve the above-described problem, and suppresses a decrease in the blood flow of the radial artery to enhance the hemostasis effect, and easily and quickly perform the work until the hemostasis treatment is started. An object of the present invention is to provide a hemostatic device with excellent convenience.

  A hemostatic device that achieves the above-described object includes a flexible belt body that can be wound around an arm on which the radial artery and the ulnar artery run, and a fixing portion that fixes the belt body in a state of being wound around the arm, A first expansion part that is connected to the band body and expands by injecting a fluid to press the site to be hemostasis of the radial artery, and a position different from the first expansion part in the longitudinal direction of the band body And a second dilatation part that can be expanded by injecting a fluid to press the ulnar artery, and the first dilation part and the first dilation part spaced apart from each other in the longitudinal direction of the band The two expansion portions are communicated with each other via a communication path configured to allow the fluid to flow therethrough.

  According to the hemostatic instrument configured as described above, the second expansion part for pressing the ulnar artery is provided, so that the hemostatic effect can be enhanced by suppressing the decrease in the blood flow volume of the radial artery. Furthermore, since the first expansion portion for pressing the hemostasis site of the radial artery and the second expansion portion for pressing the ulnar artery are communicated via the communication path, fluid is supplied to one expansion portion. By performing the operation of injecting, the fluid can be injected into the other extension portion. That is, since each expansion part can be expanded by the operation | work which inject | pours the fluid once, the operation | work until a hemostatic treatment is started can be performed easily and rapidly.

It is the top view which looked at the hemostatic device concerning an embodiment from the inner surface side. It is sectional drawing which follows the AA line of FIG. It is a perspective view which shows the state equipped with the hemostatic device which concerns on embodiment. It is sectional drawing which follows the BB line of FIG. It is sectional drawing which follows the CC line of FIG. It is sectional drawing which follows the DD line | wire of FIG. It is the top view which looked at the hemostatic device which concerns on the modification 1 of embodiment from the inner surface side. It is sectional drawing of the hemostatic device which concerns on the modification 2 of embodiment. It is sectional drawing of the hemostatic device which concerns on the modification 3 of embodiment. It is sectional drawing of the hemostatic device which concerns on the modification 4 of embodiment. It is sectional drawing of the hemostatic device which concerns on the modification 5 of embodiment.

  Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. In addition, the following description does not limit the technical scope and terms used in the claims. In addition, the dimensional ratios in the drawings are exaggerated for convenience of explanation, and may differ from actual ratios.

  As shown in FIG. 4, the hemostatic device 10 according to the embodiment of the present invention is formed on the radial artery 210 of the wrist 200 (corresponding to an arm) for the purpose of inserting a catheter or the like for performing treatment / examination into the blood vessel. After the introducer sheath placed at the puncture site 220 (corresponding to the site to be hemostatic) is removed, the puncture site 220 is used for hemostasis.

  As shown in FIGS. 1 and 2, the hemostatic device 10 includes a belt body 20 for winding around the wrist 200, a hook-and-loop fastener 30 (corresponding to a fixing portion) that fixes the belt body 20 in a state of being wound around the wrist 200, A curved plate 40 (corresponding to a support member), a first expansion portion 50, a second expansion portion 60, a communication path 170 connected to the first expansion portion 50 and the second expansion portion 60, a marker 70, And an injection portion 80.

  In the present specification, when the belt 20 is wound around the wrist 200, the side facing the body surface of the wrist 200 (the mounting surface side) in the belt 20 is referred to as an “inner surface side”, and the opposite side is referred to as “the inner surface”. This is referred to as the “outer surface side”.

  In the drawing, the longitudinal direction of the band 20 is indicated by an arrow X, and the direction orthogonal to the longitudinal direction of the band 20 is indicated by an arrow Y.

  The band 20 is a band-shaped member having flexibility. As shown in FIG. 4, the band 20 is wound around the wrist 200 so as to make one round. As shown in FIG. 2, a curved plate holding portion 21 that holds the curved plate 40 is formed in the central portion of the band body 20. 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 the curved plate 40 inserted in these gaps is held.

  A male side (or female side) 31 of a hook-and-loop fastener 30 generally called a velcro tape (registered trademark) or the like is disposed on the outer surface side of the band body 20 near the left end in FIG. A female side (or male side) 32 of the hook-and-loop fastener 30 is disposed on the inner surface side of the portion near the right end in FIG. As shown in FIGS. 3 and 4, the band body 20 is wound around the wrist 200, and the male side 31 and the female side 32 are joined, whereby the band body 20 is attached to the wrist 200. The means for fixing the band 20 in a state of being wound around the wrist 200 is not limited to the hook-and-loop fastener 30, and may be a snap, a button, a clip, or a frame member through which the end of the band 20 passes.

  The constituent material of the band 20 is not particularly limited as long as it is a flexible material. For example, polyvinyl chloride, polyethylene, polypropylene, polybutadiene, polyolefin such as ethylene-vinyl acetate copolymer (EVA), polyethylene Various thermoplastic elastomers such as polyesters such as terephthalate (PET), polybutylene terephthalate (PBT), polyvinylidene chloride, silicone, polyurethane, polyamide elastomer, polyurethane elastomer, polyester elastomer, or any combination thereof (blend resin) , Polymer alloys, laminates, etc.).

  The band 20 is preferably substantially transparent, but is not limited to being transparent, and may be translucent or colored and transparent. Thereby, the puncture site | part 220 can be visually recognized from the outer surface side, and the marker 70 mentioned later can be easily aligned with the puncture site | part 220. FIG.

  As shown in FIG. 2, the curved plate 40 is held by the band body 20 by being inserted between the curved plate holding portions 21 formed in double of the band body 20. The curved plate 40 is made of a material that is harder than the band 20 and maintains a substantially constant shape.

  The curved plate 40 extends along the longitudinal direction (arrow X direction) of the band 20. The central portion 41 in the longitudinal direction of the curved plate 40 is almost flat and has a flat plate shape. Both sides of the central portion 41 are directed toward the inner peripheral side and the longitudinal direction of the band body 20. A first bending portion 42 (left side in FIG. 2) and a second bending portion 43 (right side in FIG. 2) that are curved along the direction (the circumferential direction of the wrist 200) are formed.

  The constituent material of the curved plate 40 is not particularly limited as long as it can visually recognize the puncture site 220. For example, acrylic resin, polyvinyl chloride (especially hard polyvinyl chloride), polyethylene, polypropylene, polyolefin such as polybutadiene, polystyrene, etc. , Poly- (4-methylpentene-1), polycarbonate, ABS resin, polymethyl methacrylate (PMMA), polyacetal, polyacrylate, polyacrylonitrile, polyvinylidene fluoride, ionomer, acrylonitrile-butadiene-styrene copolymer, polyethylene terephthalate ( PET), polyesters such as polybutylene terephthalate (PBT), butadiene-styrene copolymers, aromatic or aliphatic polyamides, fluorine-based resins such as polytetrafluoroethylene, etc. And the like.

  The curved plate 40 is preferably substantially transparent, like the band 20, but is not limited to transparent, and may be translucent or colored transparent. Thereby, the puncture site 220 can be reliably recognized from the outer surface side, and the marker 70 described later can be easily aligned with the puncture site 220. The curved plate 40 may not have a portion that is not curved like the central portion 41, that is, may be curved over the entire length thereof.

  A first extension portion 50 and a second extension portion 60 are connected to the band body 20. The first extension portion 50 and the second extension portion 60 are separated from each other in the longitudinal direction (X direction) of the band body 20. The first expansion unit 50 and the second expansion unit 60 expand by injecting a fluid (a gas such as air or a liquid). The first expansion unit 50 presses the puncture site 220 located in the radial artery 210 of the wrist 200. The second expansion unit 60 presses the ulnar artery 230 by pressing the body surface of the wrist 200.

  The constituent material of the 1st expansion part 50 will not be specifically limited if it is a material provided with flexibility, For example, the thing similar to the constituent material of the strip | belt body 20 mentioned above can be used. Moreover, it is preferable that the 1st expansion part 50 is comprised with the material of the same quality or the same kind as the strip | belt body 20. FIG.

  The first extended portion 50 is preferably substantially transparent, like the band body 20 and the curved plate 40. Thereby, the puncture site | part 220 can be visually recognized from the outer surface side, and the marker 70 mentioned later can be easily aligned with the puncture site | part 220. FIG.

  For example, as shown in FIG. 2, the structure of the first extension portion 50 is formed in a bag shape by stacking two sheet materials made of the materials described above and joining the edges by a method such as fusion or adhesion. It can be formed. As shown in FIG. 1, the outer shape of the first expansion unit 50 is a quadrangle when not expanded.

  As shown in FIG. 2, the first extension portion 50 is connected to the band body 20 via a flexible first holding portion 51. The first holding part 51 is preferably provided on the first bending part 42 side of the bending plate 40. The first holding part 51 is preferably made of the same material as the first extension part 50. Thereby, joining with the belt | band | zone body 20 by melt | fusion can be performed easily, and it can manufacture easily.

  The constituent material of the second extension portion 60 is preferably a flexible material, like the first extension portion 50, and for example, the same constituent material as that of the band body 20 described above can be used. . The second extended portion 60 is preferably substantially transparent, like the band body 20, the curved plate 40, and the first extended portion 50.

  The structure of the second expansion portion 60 is similar to the first expansion portion 50, in which two sheet materials made of the materials described above are stacked and the edges are joined by a method such as fusion or adhesion to form a bag shape. It can be formed. As shown in FIG. 1, the outer shape of the second expansion portion 60 is a quadrangle when not expanded.

  As shown in FIG. 2, a marker 70 is provided on the outer surface side of the first extension portion 50, that is, on the surface of the first extension portion 50 that does not face the body surface of the wrist 200. By providing such a marker 70 on the first expansion part 50, the first expansion part 50 can be easily aligned with the puncture site 220, and thus displacement of the first expansion part 50 is suppressed. .

  The shape of the marker 70 is not particularly limited, and examples thereof include a circle, a triangle, and a quadrangle. In the present embodiment, the marker 70 has a quadrangle.

  Although the magnitude | size of the marker 70 is not specifically limited, For example, when the shape of the marker 70 has comprised the rectangle, it is preferable that the length of the one side is the range of 1-4 mm. When the length of one side is 5 mm or more, the size of the marker 70 is larger than the size of the puncture site 220, so that it is difficult to align the center of the first extension portion 50 with the puncture site 220.

  The material of the marker 70 is not particularly limited, and examples thereof include oily colorants such as ink, and resins kneaded with pigments.

  The color of the marker 70 is not particularly limited as long as it is a color capable of aligning the first extension 50 with the puncture site 220, but a green color is preferable. By making it green, the marker 70 can be easily visually recognized on the blood or skin, so that it is easier to align the first extension portion 50 with the puncture site 220.

  The marker 70 is preferably translucent or colored and transparent. Thereby, the puncture site 220 can be visually recognized from the outer surface side of the marker 70.

  The method of providing the marker 70 on the first extension 50 is not particularly limited. For example, a method of printing the marker 70 on the first extension 50, a method of fusing the marker 70 to the first extension 50, and one side of the marker 70. For example, a method of applying an adhesive and sticking the adhesive to the first extension 50 may be used.

  The marker 70 may be provided on the inner surface side of the first extension portion 50. At this time, the marker 70 is preferably provided on the inner surface or the like in the first extension portion 50 so as not to directly contact the puncture site 220.

  The injection part 80 is a part for injecting fluid into the first extension part 50 and the second extension part 60, and as shown in FIG. 1, the first extension part via a tube 82 (corresponding to a fluid path). 50.

  The injection unit 80 includes a tube 82, a bag body 84, and a tubular connector 86 connected to the bag body 84. The connector 86 includes a check valve (not shown).

  The tube 82 has one end 82 a connected to the first expansion portion 50 and the other end 82 b connected to the bag body 84. The one end portion 82 a is disposed inside the first expansion portion 50, and the other end portion 82 b is disposed inside the bag body 84. The tube 82 can be comprised by the hollow member provided with the flexibility comprised with the well-known resin material, for example.

  As shown in FIGS. 1 and 2, the first expansion portion 50 and the second expansion portion 60 are communicated with each other via a communication path 170 configured to allow fluid to flow therethrough. For example, the communication path 170 can be formed of a flexible tube (hollow member) in the same manner as the tube 82.

  The communication path 170 is attached so as to be positioned on the inner surface side of the band body 20. One end portion 170 a of the communication passage 170 is connected to the first extension portion 50, and the other end portion 170 b of the communication passage 170 is connected to the second extension portion 60. In addition, one end portion 170 a of the communication path 170 is disposed inside the first expansion portion 50, and the other end portion 170 b of the communication path 170 is disposed inside the second expansion portion 60. Each of the one end portion 170a and the other end portion 170b of the communication path 170 can be fixed to each of the expansion portions 50 and 60 by, for example, fusion, welding, adhesive, or the like.

  One end portion 170a of the communication path 170 is connected to the vicinity of the center position in the thickness direction (left and right direction in FIG. 2) of the first expansion portion 50, and the other end portion 170b of the communication path 170 is connected to the second expansion portion 60. Near the center position in the thickness direction (vertical direction in FIG. 4). As shown in FIG. 4, when each expansion part 50, 60 is expanded, the communication path 170 is stored in a space defined between the inner surface of the band 20 and the wrist 200. Therefore, it is possible to prevent the communication path 170 from interfering with each part of the hemostatic device 10 or contacting the wrist 200 when the hemostatic device 10 is used. In addition, since the space allowing the expansion of the expansion portions 50 and 60 between the inner surface of the belt 20 and the wrist 200 can be secured relatively wide, the expansion of the expansion portions 50 and 60 is performed by the communication path 170. It can be prevented from being disturbed.

  The channel diameter of the one end portion 170 a of the communication path 170 is formed larger than the channel diameter of the other end portion 82 b connected to the first expansion portion 50 in the tube 82. In this embodiment, since the cross-sectional shape of the communication path 170 and the cross-sectional shape of the tube 82 are circular, the inner diameter of the one end 170a of the communication path 170 is formed larger than the inner diameter of the other end 82b of the tube 82. Yes.

  The first extended portion 50 is disposed in the vicinity of the first curved portion 42 located on one end portion side of the curved plate 40, and the second extended portion 60 is a second curved portion located on the other end portion side of the curved plate 40. It is arranged near the portion 43. When the first expansion portion 50 is expanded, the first expansion portion 50 is supported by the first bending portion 42 so that the expansion direction (pressing direction) is directed toward the center of the wrist. Similarly, when the second expansion portion 60 is expanded, the second expansion portion 60 is supported by the second bending portion 43 so that the expansion direction (pressing direction) is directed toward the center of the wrist. Therefore, when each expansion part 50 and 60 expands, the vector in which the 1st expansion part 50 presses the wrist 200 and the vector in which the 2nd expansion part 60 presses the wrist 200 cross | intersect each other.

  When expanding (expanding) the first expansion portion 50 and the second expansion portion 60, the front tube portion of a syringe (not shown) is inserted into the connector 86, and the check valve is opened. By pushing, the fluid in the syringe is injected into the first expansion part 50 via the injection part 80. The fluid injected into the first extension 50 flows into the second extension 60 through the communication path 170. When the first expansion part 50 and the second expansion part 60 are expanded, the bag body 84 communicating with the first expansion part 50 via the tube 82 is also expanded. Thereby, it can confirm visually that each expansion part 50 and 60 can be pressurized, without making a fluid leak. After injecting the fluid into the first expansion portion 50 and the second expansion portion 60, when the front tube portion of the syringe is removed from the connector 86, the check valve built in the connector 86 is closed and fluid leakage is prevented. The expanded portions 50 and 60 are maintained in an expanded state.

  Next, a method for using the hemostatic device 10 according to the present embodiment will be described.

  Before the hemostatic device 10 is attached to the wrist 200, the first expansion portion 50 and the second expansion portion 60 are not expanded. When puncturing the wrist 200, the puncture site 220 to the radial artery 210 is usually at a position offset to the thumb side of the wrist 200 of the right hand. Usually, an introducer sheath is placed at the puncture site 220. The band 20 is wrapped around the wrist 200 in a state where the introducer sheath is indwelled, and the first extension 50 and the band 20 are placed so that the marker 70 provided on the first extension 50 overlaps the puncture site 220. Are aligned, the male side 31 and the female side 32 of the hook-and-loop fastener 30 are brought into contact with each other, and the band 20 is attached to the wrist 200.

  The hemostatic device 10 is attached to the wrist 200 so that the injection part 80 faces the downstream side of the blood flow of the radial artery 210. Thereby, the operation of the injection unit 80 can be performed without interfering with a procedure on the upstream side of the wrist or an instrument (for example, a blood pressure monitor) located on the upstream side. In addition, by attaching the hemostatic device 10 to the wrist 200 of the right hand so that the injection portion 80 faces the downstream side, the first expansion portion 50 is located in the radial artery 210 that is located offset to the thumb side of the wrist 200. The second dilator 60 is located around the ulnar artery 230. In the case of an artery, the upstream side of the blood vessel refers to a direction approaching the heart of the blood vessel. Further, the downstream side of the blood vessel refers to a direction away from the heart of the blood vessel.

  After the hemostatic device 10 is attached to the wrist 200, a syringe (not shown) is connected to the connector 86 of the injection unit 80, and fluid is injected into the first expansion unit 50 as described above. 4 and 5, when the fluid is injected into the second expansion portion 60, the first expansion portion 50 expands and presses the puncture site 220, and the second expansion portion 50 expands. The ulnar artery 230 and its peripheral part are pressed. The degree of expansion of the first expansion unit 50, that is, the pressing force to the puncture site 220 located in the radial artery 210 can be easily adjusted according to the case by the amount of fluid injected at this time. Similarly, the degree of expansion of the second expansion unit 60 can be adjusted.

  After the expansion portions 50 and 60 are expanded, the syringe is detached from the connector 86. Then, the introducer sheath is removed from the puncture site 220. Thereby, each expansion part 50 and 60 maintains an expanded state, and the pressing state of the puncture site | part 220 and the ulnar artery 230 is maintained.

  When the first extension portion 50 and the second extension portion 60 are extended, the curved plate 40 is separated from the body surface of the wrist 200 and is difficult to contact the wrist 200. Moreover, when the 1st expansion part 50 and the 2nd expansion part 60 are expanded after mounting | wearing the hemostatic device 10, the expansion to the direction away from the body surface of the wrist 200 will be suppressed by the curved board 40, and the 1st expansion part 50 will be suppressed. And the pressing force of the 2nd expansion part 60 concentrates on the wrist 200 side. For this reason, since the pressing force from the 1st expansion part 50 concentrates and acts on the circumference | surroundings of the puncture site | part 220, the hemostatic effect can be improved.

  Furthermore, excessive increase in the blood flow flowing to the ulnar artery 230 can be prevented by the second dilating portion 60 pressing the ulnar artery 230 and its peripheral portion, and a decrease in blood flow in the radial artery 210 can be suppressed. Thereby, occlusion of the blood vessel is prevented, and hemostasis of the puncture site 220 can be performed in a relatively short time by suppressing the decrease in the amount of platelets and the like.

  When the hemostasis is completed, the hemostatic device 10 is removed by reducing the pressing force of the first expansion portion 50 on the puncture site 220 and the pressing force of the second expansion portion 60 on the ulnar artery 230. At this time, the syringe is connected to the connector 86 of the injection unit 80, and the fluid injected into the first expansion unit 50 is discharged. The fluid injected into the second expansion part 60 is discharged to the outside through the communication path 170.

  When the hemostasis device 10 is removed after hemostasis of the puncture site 220 is completed, the first expansion portion 50 is contracted, and then the male side 31 and the female side 32 of the hook-and-loop fastener 30 are peeled off to remove the hemostasis device 10 from the wrist 200. Remove. In addition, when removing the hemostatic device 10, the 1st expansion part 50 and the 2nd expansion part 60 do not need to be contracted.

  As described above, the hemostatic device 10 according to the present embodiment has the flexible band body 20 that can be wound around the wrist 200 on which the radial artery 210 and the ulnar artery 230 run, and the band body 20 around the wrist 200. A hook-and-loop fastener 30 that is fixed in a wound state, a first expansion portion 50 that is connected to the band body 20 and can be expanded by injecting a fluid to press the site to be hemostatic of the radial artery 210, A second expansion portion 60 that is arranged at a position different from the first expansion portion 50 in the longitudinal direction and that can be expanded by injecting fluid to press the ulnar artery 230, and in the longitudinal direction of the band body 20 The first extension part 50 and the second extension part 60 that are separated from each other are communicated with each other via a communication path 170 configured to allow fluid to flow therethrough.

  According to the hemostatic device 10 configured as described above, the second expansion portion 60 for pressing the ulnar artery 230 is provided, thereby suppressing a decrease in blood flow in the radial artery 210 and enhancing the hemostatic effect. Can do. Furthermore, the first dilatation part 50 for pressing the hemostatic site of the radial artery 210 and the second dilation part 60 for pressing the ulnar artery 230 are communicated with each other via the communication path 170. By performing the operation of injecting the fluid into the extension portion 50, the fluid can be injected into the second extension portion 60. That is, since it becomes possible to expand each expansion part 50 and 60 by the operation | work which injects the fluid once, the operation | work until a hemostatic treatment is started can be performed easily and rapidly.

  In addition, the hemostatic device 10 has an injection part 80 for injecting fluid into the first extension part 50 and the second extension part 60. The injection unit 80 is connected to the first expansion unit 50 via a tube 82 through which fluid can flow. The communication path 170 has one end 170 a connected to the first extension 50 and the other end 170 b connected to the second extension 60. One end portion 170 a of the communication passage 170 is disposed inside the first expansion portion 50, and the other end portion 170 b of the communication passage 170 is disposed inside the second expansion portion 60.

  Since the hemostatic device 10 has the above-described configuration, the fluid can smoothly flow between the first expansion portion 50 and the second expansion portion 60 via the communication passage 170, and further, the first expansion It is possible to more reliably prevent fluid leakage from the communication passage 170 at the connection position between the portion 50 and the second expansion portion 60.

  Further, the channel diameter of the one end portion 170 a of the communication path 170 is formed larger than the channel diameter of the one end portion 82 a connected to the first expansion portion 50 in the tube 82. Thereby, per unit time of the fluid injected into the second expansion portion 60 via the communication path 170 with respect to the flow rate per unit time of the fluid injected into the first expansion portion 50 via the tube 82. The flow rate increases. Accordingly, the fluid injected into the first expansion unit 50 can be quickly fed into the second expansion unit 60, and the time until the first expansion unit 50 expands and the second expansion unit 60 expands. The time difference from the time until the time can be shortened, and the pressing of the radial artery 210 and the pressing of the ulnar artery 230 can be started simultaneously.

  In addition, the hemostatic device 10 includes a curved plate 40 that adjusts the direction in which the first extension 50 presses the wrist 200 and the direction in which the second extension 60 presses the wrist 200. The curved plate 40 extends along the longitudinal direction of the band 20. The first expansion portion 50 and the second expansion portion 60 are in communication with each other via the communication path 170 in a state where the first expansion portion 50 and the second expansion portion 60 are disposed on both ends 42 and 43 in the longitudinal direction of the curved plate 40. Since the hemostatic device 10 has such a configuration, it is possible to suitably maintain the communication state of each of the expansion portions 50 and 60 in a state where the hemostatic device 10 is supported by the curved plate 40.

  Next, a modified example of the communication path 170 described in the above-described embodiment will be described. In the description of the modification, the description of components having substantially the same functions as those already described will be omitted. In addition, configurations that are not particularly mentioned in the description of the modification examples can be configured in the same manner as in the above-described embodiment.

(Modification 1)
FIG. 7 shows the hemostatic device 10 including the communication path 310 according to the first modification.

  As shown in FIG. 7, for example, the communication path 310 is arranged to be drawn out of the band body 20 from the end side in the width direction of the band body 20 (direction orthogonal to the longitudinal direction of the band body). be able to. One end portion 310 a of the communication passage 310 is disposed inside the first expansion portion 50, and the other end portion 310 b of the communication passage 310 is disposed inside the second expansion portion 60.

  The communication path 310 is disposed on the same side as the side on which the tube 82 is disposed with respect to the belt body 20. Thereby, when using the hemostatic device 10, it is possible to easily confirm the position of the communication path 310, and to prevent a finger or the like from being caught in the communication path 310.

  Even when the communication path 310 is provided as shown in the present modification, the communication path 310 is prevented from interfering with each part of the hemostatic device 10 or contacting the wrist 200 when the hemostatic device 10 is used. Can do. In addition, since a space allowing the expansion of the expansion portions 50 and 60 between the inner surface of the belt 20 and the wrist 200 can be secured relatively wide, the expansion of the expansion portions 50 and 60 is performed by the communication path 310. It can be prevented from being disturbed.

(Modification 2)
In FIG. 8, the cross section of the hemostatic device 10 provided with the communicating path 320 which concerns on the modification 2 is shown.

  As shown in FIG. 8, for example, the communication path 320 passes through each of the band body 20, the curved plate 40, and the curved plate holding portion 21 in the thickness direction (left and right direction in FIG. 8), and is outside the band body 20. It can be pulled out and arranged. One end portion 320 a of the communication passage 320 is disposed inside the first expansion portion 50, and the other end portion 320 b of the communication passage 320 is disposed inside the second expansion portion 60.

  Even when the communication path 320 is provided as shown in the present modification, the communication path 320 is prevented from interfering with each part of the hemostatic device 10 or coming into contact with the wrist 200 when the hemostatic device 10 is used. Can do. In addition, since a space allowing the expansion of each expansion portion 50, 60 can be secured between the inner surface of the band 20 and the wrist 200, the expansion of each expansion portion 50, 60 is performed by the communication path 320. It can be prevented from being disturbed.

(Modification 3)
In FIG. 9, the cross section of the hemostatic device 10 provided with the communicating path 330 which concerns on the modification 3 is shown.

  As shown in FIG. 9, the communication path 330 includes, for example, a path (cavity part) 331 formed inside the curved plate 40, a first tube 331 a that communicates the path 331 and the inside of the first expansion part 50, and A second tube 331b that allows the passage 331 and the inside of the second expansion portion 60 to communicate with each other can be configured. Each tube 331a, 332b can be comprised using the thing similar to the tube 82 mentioned above, for example.

  The first tube 331a that constitutes one end portion of the communication path 330 is disposed inside the first expansion portion 50, and the second tube 331b that constitutes the other end portion 320b of the communication passage 320 is the second expansion portion 60. Is placed inside.

  Even when the communication path 330 is configured as shown in the present modification, it is possible to prevent the communication path 330 from interfering with each part of the hemostatic device 10 or contacting the wrist 200 when the hemostatic device 10 is used. it can. Further, when the hemostatic device 10 is used, the communication path 330 is not disposed in the space formed between the band 20 and the wrist 200, so that a wider space for allowing the expansion portions 50 and 60 to be expanded is secured. It is possible to prevent the expansion of the respective expansion portions 50 and 60 from being obstructed by the communication passage 330 more reliably.

  In the third modification, the expansion portions 50 and 60 and the passage 331 in the curved plate 40 are communicated with each other via the first tube 331a and the second tube 331b. For example, the tubes 331a and 331b are connected. It is good also as a structure which connected each extended part 50 and 60 and the channel | path 331 in the curved board 40 directly without using.

(Modification 4)
In FIG. 10, the cross section of the hemostatic device 10 provided with the communicating path 340 which concerns on the modification 4 is shown. FIG. 10 shows a state in which the first expansion unit 50 and the second expansion unit 60 are expanded.

  As shown in FIG. 10, the communication path 340 can be configured by, for example, a flexible sheet material that is a constituent member of the first expansion portion 50 and the second expansion portion 60. The communication path 340 is configured by a space partitioned by a sheet material, and the first expansion part 50 and the second expansion part 60 are integrally communicated via the communication path 340.

  When the communication path 340 is configured as shown in the present modification, the number of parts for configuring the communication path 340 can be reduced, so that the cost can be reduced and the manufacturing process can be facilitated.

(Modification 5)
In FIG. 11, the cross section of the hemostatic device 10 provided with the communicating path 350 which concerns on the modification 5 is shown. FIG. 11 shows a state in which the first expansion unit 50 and the second expansion unit 60 are expanded.

  In the present modification, the first expansion unit 50 includes a first balloon 50a that is in contact with the wrist 200 and a first auxiliary balloon 150a that controls the pressing direction (expansion direction) of the first balloon 50a. Yes. When fluid is injected into the first auxiliary balloon 150a to expand it, the first auxiliary balloon 150a presses the first balloon 50a toward the puncture site 220.

  The second expansion part 60 includes a second balloon 60a that comes into contact with the wrist 200 and a second auxiliary balloon 160a that controls the pressing direction (expansion direction) of the second balloon 60a. When fluid is injected into the second auxiliary balloon 160a and expanded, the second auxiliary balloon 160a presses the second balloon 60a toward the ulnar artery 230.

  The first auxiliary balloon 150a is disposed between the first balloon 50a and the curved plate 40. The second auxiliary balloon 160a is disposed between the second balloon 60a and the curved plate 40. Although not shown, the injection unit 80 is connected to the first auxiliary balloon 150a via a predetermined tube 82.

  The communication path 350 is disposed so as to communicate the first balloon 50a and the second auxiliary balloon 160a. One end 350a of the communication passage 350 is disposed inside the first balloon 50a, and the other end 350b of the communication passage 350 is disposed inside the second auxiliary balloon 160a.

  The inside of the first auxiliary balloon 150a communicates with the inside of the first balloon 50a. For this reason, when fluid is injected from the injection part 80 into the first auxiliary balloon 150a, the first balloon 50a expands together with the first auxiliary balloon 150a. The communication path 350 injects the fluid injected into the first balloon 50a into the second auxiliary balloon 160a. The inside of the second auxiliary balloon 160a communicates with the inside of the second balloon 60a. Therefore, when fluid is injected into the second auxiliary balloon 160a, the second balloon 60a expands together with the second auxiliary balloon 160a.

  As shown in this modification, the first dilatation part 50 is constituted by the first balloon 50a and the first auxiliary balloon 150a, and the second dilation part 60 is constituted by the second balloon 60a and the second auxiliary balloon 160a. Even in such a case, it is possible to expand all the balloons by one injection operation by communicating the expansion portions 50 and 60 through the communication passage 350. In other words, by providing the communication path 350, it is possible to complete the injection operation at one time regardless of the number of balloons, and thus it is possible to provide the hemostatic base 10 with improved hemostatic performance and improved convenience. become.

  As described above, the hemostatic device according to the present invention has been described through the embodiment and the modification. However, the present invention is not limited only to each configuration described above, and can be appropriately changed based on the description of the claims. It is.

  For example, each part which comprises a hemostatic device can be substituted with the thing of the arbitrary structures which can exhibit the same function. Moreover, arbitrary components may be added.

  In addition, the present invention is not limited to the hemostatic device used by wearing on the wrist, but can also be applied to the hemostatic device used by attaching to any part of the arm where the radial artery and ulnar artery run.

  Further, the connection target of the injection part is not limited to the first extension part. For example, an injection part may be connected to the second extension part. Moreover, even when each expansion part is comprised with a some expansion member (balloon), the connection object of an injection | pouring part is not specifically limited, You may connect to any expansion member.

  Further, the outer shapes of the first extension portion and the second extension portion are not limited to a quadrangle when not extended, and may be, for example, a polygon such as a circle, an ellipse, or a pentagon.

  In addition, the marker may be provided on the band, the curved plate, and the auxiliary compression part instead of being provided on the first extension part. Further, it is more preferable that the marker is provided so as to overlap the center portion of the first extension portion.

10 hemostatic devices,
20 belts,
30 hook-and-loop fastener (fixing part),
40 Curved plate (support plate),
50 first extension,
60 second extension,
70 markers,
80 injection part,
82 Tube (fluid path),
170, 310, 320, 330, 340, 350 communication path,
170a, 310a, 320a, 330a, 350a, one end of the communication path,
170b, 310b, 320b, 330b, 350b, the other end of the communication path,
200 wrist (arm),
210 radial artery,
220 puncture site,
230 Ulnar artery.

Claims (4)

A flexible band capable of being wrapped around the arm on which the radial and ulnar arteries run;
A fixing portion for fixing the belt body around the arm; and
A first expansion portion connected to the band body and expanded by injecting a fluid, and capable of pressing the hemostatic site of the radial artery;
A second expansion portion that is disposed at a position different from the first expansion portion in the longitudinal direction of the band and that can be expanded by injecting a fluid to press the ulnar artery,
The hemostatic device, wherein the first extension part and the second extension part that are separated from each other in the longitudinal direction of the belt body are communicated with each other via a communication path configured to allow the fluid to flow therethrough. An injection part for injecting fluid into the first extension part and the second extension part;
The injection part is connected to the first extension part via a fluid path through which the fluid can flow.
The communication path has one end connected to the first extension and the other end connected to the second extension.
The one end portion of the communication path is disposed inside the first extension portion,
The hemostatic device according to claim 1, wherein the other end portion of the communication path is disposed inside the second expansion portion.   The hemostatic device according to claim 2, wherein a flow path diameter at the one end of the communication path is larger than a flow path diameter at an end connected to the first expansion part in the fluid path. A support member for adjusting a direction in which the first extension portion presses the arm and a direction in which the second extension portion presses the arm;
The support member extends along the longitudinal direction of the strip,
2. The first extension part and the second extension part are in communication with each other via the communication path in a state of being arranged on both ends in the longitudinal direction of the support member. The hemostatic device of any one of -3.