JP2017047039A - Hemostatic device - Google Patents

Abstract

An object of the present invention is to prevent numbness and pain caused by pressing of the ulnar artery by suppressing the decrease in the blood flow volume of the radial artery and enhancing the hemostatic effect and enabling the appropriate pressing force to be applied to the ulnar artery. Provide a hemostatic device that can be alleviated. A hemostatic device 10 has a flexible band body 20 capable of being wound around an arm 200 on which a radial artery 210 and an ulnar artery 230 run, and a fixing portion for fixing the band body around the arm. 30 and an expansion part 50 that is connected to the band body and expands by injecting fluid to press the site 220 to be hemostatic of the radial artery, and is arranged at a position different from the expansion part in the longitudinal direction of the band body, A pressing member 60 capable of pressing the ulnar artery. The pressing member includes a main body portion 61 and a convex portion 62 that is disposed on the main body portion and has a shape protruding from the main body portion. [Selection] Figure 2

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 around the puncture site, and expanding by injecting a fluid to press the puncture site There is known a hemostatic device provided with a possible extension (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 Ultimate 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, a pressing member for pressing the ulnar artery is further provided in the hemostatic device described above, 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, since such a hemostatic device is attached to the arm for a long time, if the area of the pressing member that contacts the arm is large, the pressing member presses a wider area than necessary, and not only the ulnar artery but also the surrounding tendons And nerves may be pressed. In such a case, the pressing member causes numbness or pain to the patient. In contrast to the above, in order to effectively press the ulnar artery, if the size of the entire pressing member is made small, the pressing member may be displaced with respect to the ulnar artery, or the ulnar artery of the pressing member There is a case where the pressing force against is reduced.

  The present invention has been made to solve the above-described problems, and can suppress the decrease in the blood flow volume of the radial artery to enhance the hemostasis effect and provide an appropriate pressing force to the ulnar artery. Thus, an object of the present invention is to provide a hemostatic device that can reduce numbness and pain caused by pressing of the ulnar artery.

  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, An expansion part connected to the band body and inflated by injecting a fluid to press the site to be hemostatic of the radial artery, arranged in a position different from the expansion part in the longitudinal direction of the band body, A pressing member capable of pressing the ulnar artery. The pressing member includes a main body portion and a convex portion that is disposed on the main body portion and has a shape protruding from the main body portion.

  According to the hemostatic device configured as described above, a sufficient pressing force can be applied to the ulnar artery by the convex portion that receives the pressing force from the main body portion, and the pressing direction of the convex portion can be adjusted by the main body portion. This restricts the pressing of parts other than the ulnar artery such as tendons and nerves around the ulnar artery, suppresses the positional displacement of the part that presses the arm by the convex part, and causes numbness and pain in the arm by pressing for a long time Can be reduced.

It is the top view which looked at the hemostatic device concerning a 1st 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 which mounted | wore with the hemostatic device which concerns on 1st Embodiment. 4A is a cross-sectional view taken along line BB in FIG. 3, and FIG. 4B is a perspective view schematically showing the pressing member. It is sectional drawing which follows the CC line of FIG. It is sectional drawing which follows the DD line | wire of FIG. FIG. 7 (A) is a view showing a state in which the hemostatic device according to the modification of the first embodiment is mounted, and is a cross-sectional view corresponding to FIG. 4 (A). FIG. It is the perspective view which showed the member typically. It is a figure which shows the state equipped with the hemostatic device which concerns on 2nd Embodiment, Comprising: It is sectional drawing corresponding to FIG. FIG. 9 (A) is a view showing a state in which the hemostatic device according to the second embodiment is mounted, and is a cross-sectional view corresponding to FIG. 4 (A), and FIG. 9 (B) schematically shows the pressing member. FIG.

  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.

(First embodiment)
As shown in FIG. 4 (A), the hemostatic device 10 according to the first embodiment of the present invention is a radial artery of the wrist 200 (corresponding to an arm) for the purpose of inserting a catheter or the like for performing treatment or examination into a blood vessel. After the introducer sheath placed in the puncture site 220 (corresponding to the site to be hemostatic) formed in 210 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, The curved plate 40, the expansion part 50, the pressing member 60, the marker 70, the first injection part 80, and the second injection part 81 are included.

  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 will be referred to as “outside side”.

  Further, in the drawing, the longitudinal direction of the belt body 20 is indicated by an arrow X, the width direction orthogonal to the longitudinal direction of the belt body 20 is indicated by an arrow Y, and the direction orthogonal to the arrow Y and the arrow X is indicated by an arrow Z. Yes.

  The band 20 is a band-shaped member having flexibility. As shown in FIG. 4A, the belt 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 4A, 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 has a long shape in the longitudinal direction (arrow X direction) of the band body 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.

  An extension 50 and a pressing member 60 are connected to the band 20. The expansion part 50 and the pressing member 60 expand by injecting a fluid (a gas such as air or a liquid). The expansion part 50 presses the puncture site 220 located in the radial artery 210 of the wrist 200. The pressing member 60 presses the ulnar artery 230 by pressing the body surface of the wrist 200.

  As shown in FIG. 2, the extended portion 50 is positioned so as to overlap with the vicinity between the first curved portion 42 and the central portion 41.

  The constituent material of the extended portion 50 is not particularly limited as long as it is a flexible material, and for example, the same constituent material as that of the band 20 described above can be used.

  The extended portion 50 is preferably substantially transparent, like the band 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 extended 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. Can be. As shown in FIG. 1, the outer shape of the expansion unit 50 is a quadrangle when not expanded.

  As shown in FIG. 2, the expansion part 50 is connected to the band body 20 via a flexible first holding part 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 that of the extension part 50. Thereby, joining with the belt | band | zone body 20 by melt | fusion can be performed easily, and it can manufacture easily.

  As shown in FIG. 2, the pressing member 60 is located at a position different from the expansion portion 50 in the longitudinal direction of the band body 20 and overlaps with the vicinity between the second bending portion 43 and the central portion 41. .

  The pressing member 60 is configured to be expandable by injecting a fluid. The pressing member 60 includes a main body portion 61 that forms a main body portion of the pressing member 60 and a convex portion 62 that communicates with the main body portion 61 so as to expand as fluid is injected. In a state in which the main body 61 and the convex 62 are expanded, the convex 62 is constituted by a portion protruding from the main body 61. The main body portion 61 and the convex portion 62 are made of the same material, and are formed integrally.

  As shown in FIGS. 1 and 2, the length L <b> 2 of the convex portion 62 along the longitudinal direction of the belt body 20 is shorter than the length L <b> 1 of the main body portion 61 along the longitudinal direction of the belt body 20. More preferably, the length L2 of the convex portion 62 along the longitudinal direction of the belt body 20 is less than or equal to half of the length L1 of the main body portion 61 along the longitudinal direction of the belt body 20. Thus, since the length L1 of the main body portion 61 disposed on the outer surface side is formed to be longer than the length L2 of the convex portion 62, the length of the main body portion 61 is pushed to the convex portion 62 over the entire width direction of the band body 20. Pressure can be applied. Therefore, when the pressing member 60 is expanded, the convex portion 62 is held on the inner surface side of the main body portion 61, and the pressing direction of the convex portion 62 is defined based on the pressing direction of the main body portion 61. Thereby, it can prevent that the convex part 62 presses the wrist 200 in the direction which is not intended.

  The convex portion 62 is formed in a convex shape as shown in FIGS. 2 and 4A, and is along the width direction (arrow Y direction) of the band 20 as shown in FIGS. 1 and 4B. And has a continuously extending shape. Thereby, the part of the convex portion 62 that contacts the wrist 200 has a shape extending along the travel of the ulnar artery 230.

  Further, as shown in FIG. 1, the length W <b> 2 of the protrusion 62 along the width direction of the band 20 is equal to or less than the length W <b> 1 of the main body 61. Thus, since the length W2 of the convex part 62 is comparatively short, the area of the convex part 62 which contacts the wrist 200 becomes small correspondingly, and the press range by the press member 60 can be narrowed. As a result, it is possible to limit the pressing of parts other than the ulnar artery 230 such as tendons and nerves around the ulnar artery 230, and to reduce the occurrence of numbness and pain in the wrist 200 due to the pressing for a long time.

  As shown in FIG. 2, the pressing member 60 is connected to the belt 20 through a flexible second holding portion 63. Note that the second holding portion 63 is preferably provided on the second bending portion 43 side of the bending plate 40. The second holding part 63 is preferably made of the same material as the pressing member 60. 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 pressing member 60 is preferably a material having flexibility like the expansion portion 50, and for example, the same constituent material as that of the band 20 described above can be used. The pressing member 60 is preferably substantially transparent, like the band body 20, the curved plate 40, and the extended portion 50.

  The structure of the pressing member 60 is the same as the extended portion 50, in which two sheet materials made of the material as described above are overlapped and the edges are joined together by a method such as fusion or adhesion, and formed into a bag shape. can do. As shown in FIG. 1, the outer shape of the pressing member 60 is a quadrangle when not expanded.

  As shown in FIG. 2, a marker 70 is provided on the outer surface side of the extended portion 50, that is, the surface that does not face the body surface of the wrist 200 in the extended portion 50. By providing such a marker 70 in the expansion part 50, the expansion part 50 can be easily aligned with respect to the puncture site 220, so that the positional deviation of the 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 portion of the expansion 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 that can align the extended portion 50 with the puncture site 220, but a green color is preferable. By using the green system, the marker 70 can be easily visually recognized on the blood or skin, so that it becomes easier to align the extended 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 extension 50 is not particularly limited. For example, a method of printing the marker 70 on the extension 50, a method of fusing the marker 70 to the extension 50, and applying an adhesive on one side of the marker 70 For example, a method of pasting on the extended portion 50 may be used.

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

  The first injection part 80 and the second injection part 81 are parts for injecting fluid into the extension part 50 and the pressing member 60, respectively, and are connected to the extension part 50 and the pressing member 60, respectively, as shown in FIG. Has been.

  The first injection part 80 has a flexible first tube 82 whose base end is connected to the expansion part 50 and whose lumen communicates with the inside of the expansion part 50, and the lumen of the first tube 82. The 1st bag body 84 arrange | positioned at the front-end | tip part of the 1st tube 82 so that it may communicate, and the tubular 1st connector 86 each connected to the 1st bag body 84 are provided. The first connector 86 includes a check valve (not shown).

  Similarly, the second injection portion 81 has a base end portion connected to the pressing member 60 and a flexible second tube 83 having a lumen communicating with the inside of the pressing member 60, and an inner portion of the second tube 83. A second bag body 85 disposed at the distal end of the second tube 83 so as to communicate with the cavity, and a tubular second connector 87 respectively connected to the second bag body 85 are provided. The second connector 87 includes a check valve (not shown). The second tube 83 is preferably disposed on the same side as the side on which the first tube 82 is disposed with respect to the band 20. Thereby, the fluid can be injected into the first tube 82 and the second tube 83 from the same side. For this reason, when the same syringe is used for the first tube 82 and the second tube 83, the operation of inserting and removing the syringe can be easily performed.

  When the expansion part 50 is expanded (expanded), the front tube part of a syringe (not shown) is inserted into the first connector 86 to open the check valve, and the pusher of the syringe is pushed to Is injected into the expansion part 50 via the first injection part 80. When the expansion portion 50 expands, the first bag body 84 communicating with the expansion portion 50 via the first tube 82 also expands, and it is visually confirmed that the expansion portion 50 can be pressurized without fluid leaking. I can confirm. After injecting the fluid into the expansion portion 50, when the front tube portion of the syringe is removed from the first connector 86, the check valve built in the first connector 86 is closed to prevent the fluid from leaking. The expanded state is maintained. If the same operation is performed on the second injection portion 81 connected to the pressing member 60, the state in which the pressing member 60 is expanded is maintained. Thereby, as shown to FIGS. 4-6, the expansion part 50 and the press member 60 expand.

  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 expansion part 50 and the pressing member 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 body 20 is wrapped around the wrist 200 in a state where the introducer sheath is indwelled, and the expansion section 50 and the band body 20 are aligned so that the marker 70 provided on the expansion section 50 overlaps the puncture site 220. Then, 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 such that the first injection part 80 and the second injection part 81 are directed to the downstream side of the blood flow of the radial artery 210. Thereby, the operation of the first injection unit 80 and the second injection unit 81 can be performed without interfering with a procedure on the upstream side of the wrist and an instrument (for example, a blood pressure monitor) positioned on the upstream side. . In addition, by attaching the hemostatic device 10 to the wrist 200 of the right hand so that the first injection part 80 and the second injection part 81 face the downstream side, the expansion part 50 is offset toward the thumb side of the wrist 200. Located in the radial artery 210, the pressing member 60 is located in 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 first connector 86 of the first injection portion 80, and fluid is injected into the expansion portion 50 as described above. As shown in A) and FIG. 5, the expansion part 50 is expanded and the puncture site 220 is pressed. The degree of expansion of the expansion part 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.

  After the expansion part 50 is expanded, the syringe is detached from the first connector 86. Then, the introducer sheath is removed from the puncture site 220. Thereby, the expansion part 50 maintains an expanded state, and the press state to the puncture site | part 220 is maintained.

  Next, a syringe is connected to the second connector 87 of the second injection portion 81, and the fluid is injected into the pressing member 60 as described above to expand the pressing member 60. The degree of expansion of the pressing member 60, that is, the pressing force on the ulnar artery 230 can be easily adjusted by the amount of fluid injected at this time. Further, the fluid injection amount can be appropriately adjusted according to the progress of hemostasis and the elapsed time.

  When the expansion part 50 and the pressing member 60 are expanded, the curved plate 40 is separated from the body surface of the wrist 200 and becomes difficult to contact the wrist 200. Moreover, when the expansion part 50 and the pressing member 60 are expanded after mounting the hemostatic device 10, the curved plate 40 suppresses the expansion of the expansion part 50 and the pressing member 60 in the direction away from the body surface of the wrist 200. The pressing force of the part 50 and the pressing member 60 is concentrated on the wrist 200 side. For this reason, since the pressing force from the expansion part 50 concentrates and acts on the periphery of the puncture site | part 220, the hemostatic effect can be improved.

  Moreover, when the expansion part 50 presses the radial artery 210, the excessive increase of the blood flow which flows into the ulnar artery 230 is prevented by pressing the ulnar artery 230, and the reduction of the blood flow volume of the radial artery 210 is suppressed. Can do. Thereby, the occlusion of the blood vessel is prevented, and the amount of platelets or the like is suppressed from decreasing, whereby hemostasis of the puncture site 220 can be performed in a relatively short time.

  When the hemostasis is completed, the pressing force to the puncture site 220 of the expansion part 50 is further reduced, and the hemostatic device 10 is removed.

  When the hemostasis of the puncture site 220 is completed and the hemostatic device 10 is removed, after the expansion portion 50 is contracted, the male side 31 and the female side 32 of the hook-and-loop fastener 30 are peeled off and the hemostatic device 10 is removed from the wrist 200. In addition, when removing the hemostatic device 10, the expansion part 50 does 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, an 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, and the longitudinal direction of the band body 20 And a pressing member 60 that is disposed at a different position from the expansion portion 50 and can press the ulnar artery 230. The pressing member 60 includes a main body portion 61 and a convex portion 62 that is disposed on the main body portion 61 and has a shape protruding from the main body portion 61.

  According to the hemostatic device 10 configured as described above, a sufficient pressing force is applied to the ulnar artery 230 by the convex portion 62 that receives the pressing force from the main body portion 61, and the pressing direction of the convex portion 62 is adjusted by the main body portion 61. can do. This restricts pressing of parts other than the ulnar artery 230 such as tendons and nerves around the ulnar artery 230, suppresses the positional deviation of the part that presses the wrist 200 by the convex portion 62, and causes the wrist by pressing for a long time. The occurrence of numbness or pain in 200 can be reduced.

  The main body 61 can be expanded by injecting a fluid, and the convex portion 62 communicates with the main body 61 so as to expand as the fluid is injected, and the main body 61 and the convex 62 are connected to each other. In the expanded state, the convex portion 62 is configured by a portion that protrudes with respect to the main body portion 61. Thereby, since the main-body part 61 and the convex part 62 can be expanded by one expansion work, expansion work becomes easy.

  Further, the length L2 of the convex portion 62 along the longitudinal direction of the belt body 20 is shorter than the length L1 of the main body portion 61 along the longitudinal direction of the belt body 20. Thereby, a pressing force can be applied to the outer surface of the convex part 62 over the whole longitudinal direction of the strip 20. Therefore, when the pressing member 60 is expanded, the convex portion 62 is held on the inner surface side of the main body portion 61, and the pressing direction of the convex portion 62 is defined based on the pressing direction of the main body portion 61. Can prevent the wrist 200 from being pressed in an unintended direction.

  Further, the length W2 of the convex portion 62 along the width direction (arrow Y direction) of the band body 20 is equal to or shorter than the length W1 of the main body portion 61. Thereby, since the length W2 of the convex part 62 is comparatively short, the press range by the press member 60 can be narrowed. As a result, it is possible to limit the pressing of parts other than the ulnar artery 230 such as tendons and nerves around the ulnar artery 230, and to reduce the occurrence of numbness and pain in the wrist 200 due to the pressing for a long time.

  Moreover, the convex part 62 has the shape extended continuously along the width direction (arrow Y direction) of the strip | belt body 20. As shown in FIG. Thereby, the part of the convex portion 62 that contacts the wrist 200 has a shape extending along the travel of the ulnar artery 230. As a result, the ulnar artery 230 can be suitably pressed. For this reason, it is possible to further reduce the occurrence of numbness and pain in the wrist 200 due to the pressing for a long time.

(Modification)
The hemostatic device 11 according to the modification of the first embodiment is different from the first embodiment only in the shape of the pressing member 160, and other configurations are substantially the same as those of the first embodiment described above. Hereinafter, the same components as those in the first embodiment described above are denoted by the same reference numerals, and description thereof is omitted.

  Similar to the first embodiment, the pressing member 160 expands and deforms together with the main body portion 161 that forms the main body portion and the main body portion 161 as the fluid is injected, and protrudes from a part of the surface on the inner surface side of the main body portion 161. And a convex portion 162. The main body portion 161 is made of the same material as the convex portion 162 and is integrally formed.

  As shown in FIG. 7A, when expanded, the cross-sectional shape of the pressing member 160 according to the modification is a triangle, and as shown in FIG. 7B, the three-dimensional shape is a shape that approximates a triangular prism. It is. The convex portion 162 is formed by a tapered tip of a triangle and its peripheral portion (tip portion) (portion surrounded by a broken line in FIG. 7A), and extends along the width direction (arrow Y direction) of the band 20. And has a continuously extending shape. For this reason, when the hemostatic device 11 is attached to the wrist 200, the portion of the pressing member 160 that comes into contact with the wrist 200 has a shape that extends along the travel of the ulnar artery 230. Therefore, it is possible to suitably press the ulnar artery 230 by the pressing member 160, while it is possible to reduce the pressing range of a part (tendon, nerve, etc.) other than the ulnar artery 230. As a result, it is possible to reduce the occurrence of numbness or pain in the wrist 200 when the hemostatic device 11 is attached.

  Further, as shown in FIG. 7B, the length L12 of the convex portion 162 along the longitudinal direction of the belt body 20 is the length of the main body portion 161 along the longitudinal direction of the belt body 20, as in the first embodiment. It is formed to be shorter than the length L11. Further, the length W12 of the convex portion 162 along the width direction of the band body 20 is formed to be equal to or shorter than the length W11 of the main body portion 161.

  As shown in FIG. 7A, when the pressing member 160 is expanded and deformed, the length of the outer periphery R gradually decreases from the outer surface side to the inner surface side (arrow Z direction) of the band body 20. It is configured. Here, the outer periphery R means around the Z (arrow Z) axis of the pressing member 160 as shown by a broken line in FIG.

  According to the hemostatic device 11 according to the modified example, the pressing member 160 has a shape in which the length of the outer periphery R decreases from the outer surface side to the inner surface side (arrow Z direction) when the pressing member 160 is expanded and deformed. Have. Thereby, the outer surface side of the band 20 has a relatively large outer periphery R of the pressing member 160, that is, has a large area when viewed in plan from the arrow Z direction. Therefore, the area where the pressing member 160 contacts the inner surface of the band 20 on the outer surface side is increased accordingly. Thereby, the fixing force of the pressing member 160 by the band 20 increases. As a result, the pressing member 160 becomes more stable when mounted on the wrist 200, so that it is possible to prevent a position shift of a portion that presses the wrist 200 by the pressing member 160.

(Second Embodiment)
As shown in FIG. 8, FIG. 9A and FIG. 9B, the hemostatic device 12 according to the second embodiment includes a main body portion 261 and a convex portion 262 provided in the pressing member 260 as separate members. Other configurations are substantially the same as those of the first embodiment described above. Hereinafter, the same components as those in the first embodiment described above are denoted by the same reference numerals, and description thereof is omitted.

  As shown in FIG. 9A, the main body portion 261 is made of a flexible material and expands by injecting a fluid to press the convex portion 262.

  The convex part 262 is made of a material harder than the main body part 261, and presses the ulnar artery 230 by receiving a pressing force from the main body part 261. In the present embodiment, as shown in FIG. 9B, the convex portion 262 has a circular cross section and continuously extends along the width direction (arrow Y direction) of the band body 20. Has the shape. That is, the convex part 262 is formed by a cylindrical rod-shaped member. The convex portion 262 is disposed on the surface of the main body portion 261 on the inner surface side of the main body portion 261. The convex portion 262 may be fixed to the main body portion 261 by adhesion, an adhesive tape, or the like.

  As shown in FIG. 8, similarly to the first embodiment, the length L22 of the convex portion 262 along the longitudinal direction of the band body 20 is shorter than the length L21 of the main body portion 261 along the longitudinal direction of the band body 20. It is formed to become. Further, as shown in FIG. 9B, the length W22 of the convex portion 262 along the width direction (arrow Y direction) of the band body 20 is formed to be equal to or less than the length W21 of the main body portion 261. . That is, the main body portion 261 is disposed between the convex portion 262 and the band 20 so as to cover the surface on the outer surface side of the convex portion 262. Thereby, when the main body part 261 is expanded, the convex part 262 is held on the inner surface side of the main body part 261, and the pressing direction of the wrist 200 by the convex part 262 can be adjusted.

  The constituent material of the main body 261 is not particularly limited as long as it is a flexible material, and for example, the same constituent material as that of the band 20 described above can be used.

  The material of the convex part 262 is not particularly limited as long as it is a material harder than the main body part 261. For example, an elastic material such as a sponge-like substance, an aggregate of fibers such as cotton, metal, plastic Or a combination of these can be used.

  As described above, according to the hemostatic device 12 according to the second embodiment, the main body portion 261 can be expanded by injecting fluid, and the convex portion 262 is formed of a material harder than the main body portion 261. And attached to the outer surface of the main body 261. Thereby, the shape of the convex part 262 hardly changes depending on the degree of expansion of the main body part 261. Therefore, since the change of the press range of the wrist 200 by the convex part 262 is comparatively small, the dispersion | variation in the press range for every procedure can be suppressed. As a result, it is possible to limit the pressing of parts other than the ulnar artery 230 such as tendons and nerves around the ulnar artery 230, and to reduce the occurrence of numbness and pain in the wrist 200 due to the pressing for a long time.

  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 outer shape of the extended portion is not limited to a quadrangle when not expanded, and may be, for example, a polygon such as a circle, an ellipse, or a pentagon. In this case, the center part of the extension part is the center of the shape forming the outer shape of the extension part.

  In addition, the marker may be provided on the band or the curved plate, not on the extended portion. Further, it is more preferable that the marker is provided so as to overlap the central portion of the extension portion.

  Moreover, 1st Embodiment demonstrated the structure which can be expanded when a press member injects a fluid. In 2nd Embodiment, the structure by the main-body part which can be expanded when a press member injects a fluid, and the convex part formed with the material harder than a main-body part was demonstrated. The pressing member according to the present invention is not limited to these configurations as long as the ulnar artery can be pressed. For example, the entire pressing member may be formed of a sponge-like substance or an elastic material. Or you may comprise so that it may have a main-body part formed with sponge-like substance, an elastic material, etc., and the convex part which can be expanded by inject | pouring a fluid.

10, 11, 12 hemostatic device,
20 belts,
30 hook-and-loop fastener (fixing part),
40 curved plate,
50 extensions,
51 1st holding | maintenance part,
60, 160, 260 pressing member,
61, 161, 261 body,
62, 162, 262 convex part,
63 second holding part,
70 markers,
80 the first injection part,
81 the second injection part,
161 second holding part,
200 wrist (arm),
210 radial artery,
220 Puncture site (site to be hemostatic),
230 Ulnar artery.

Claims (7)

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
An expansion part that is connected to the belt body and expands by injecting a fluid to press the site to be hemostatic of the radial artery;
A pressing member that is disposed at a position different from the expansion portion in the longitudinal direction of the band body and is capable of pressing the ulnar artery,
The hemostatic device, wherein the pressing member includes a main body portion and a convex portion disposed on the main body portion and having a shape protruding from the main body portion. The body portion is expandable by injecting fluid;
The convex portion communicates with the main body portion so as to expand with fluid injection,
2. The hemostatic device according to claim 1, wherein, in a state in which the main body portion and the convex portion are expanded, the convex portion is configured by a portion protruding with respect to the main body portion.   The hemostatic device according to claim 2, wherein the pressing member has a shape in which an outer peripheral length is shortened from an outer surface side to an inner surface side of the band body when expanded and deformed. The body portion is expandable by injecting fluid;
The hemostatic device according to claim 1, wherein the convex portion is formed of a material harder than the main body portion, and is attached to an outer surface of the main body portion.   The length of the said convex part along the longitudinal direction of the said strip is shorter than the length of the said main-body part along the longitudinal direction of the said strip, The Claim 1 characterized by the above-mentioned. Hemostatic device.   The length of the convex part along the width direction orthogonal to the longitudinal direction of the band is equal to or less than the length of the main body part along the width direction. The hemostatic device according to item 1.   The hemostatic device according to any one of claims 1 to 6, wherein the convex portion has a shape extending continuously along a direction orthogonal to the longitudinal direction of the band.