hemostatic instruments

Abstract

Provided is a hemostatic instrument (100) that can effectively apply compression force to a puncture site (p1-p4) for hemostasis even when the puncture site (p1-p4) is formed at a predetermined location avoiding the metacarpal bone (B1) of the index finger of a hand (H) and the metacarpal bone (B2) of the thumb of the hand. This hemostatic instrument (100) comprises: a support member (110) configured to cover a first puncture site (p1); a fixation member (120) configured to fix the support member (110) to the first puncture site (p1); and an expansion member (180) connected to the support member (110) and configured to compress the first puncture site (p1). The support member (110) has a greater stiffness than that of the expansion member (180). The support member (110) has a width (W) that decreases from an upper end (111) toward a lower end (112). A side part (113) of the support member (110) has a thickness that decreases from the upper end (111) toward the lower end (112).

Description

Technical Field

[0001] The present invention relates to a hemostatic device.

Background Art

[0002] As one of the catheter techniques, a technique is known in which various medical long members are introduced into a blood vessel through a puncture site formed by puncturing a blood vessel in a limb such as a patient's arm or hand, and treatment or therapy for a lesion site is performed. For example, Patent Document 1 discloses a hemostatic device for stopping bleeding at a puncture site formed in a blood vessel (including the distal radial artery) that the hand travels through.

[0003] The hemostatic device of Patent Document 1 includes a pressing member that applies a pressing force to a puncture site (hereinafter, also simply referred to as "puncture site") formed in a patient's hand, a band for fixing the pressing member to the patient's hand, and a support member that is disposed on the band and presses the pressing member against the patient's hand. The band includes a first band disposed between the patient's fingers and a second band wound around a position on the forearm side of the patient's hand.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0005] When forming a puncture site in the hand, an operator such as a doctor (hereinafter, referred to as "operator") may set the puncture site at a predetermined position avoiding the middle phalanges of the index finger and the middle phalanges of the thumb of the hand. By setting the puncture site at such a predetermined position, the operator can prevent a puncture instrument such as an indwelling needle from interfering with the middle phalanges of each finger when forming the puncture site.

[0006] However, when a puncture site is formed at a predetermined location avoiding the metacarpal bones of the index finger and thumb, the following problems arise when hemostasis is performed using the hemostatic device described in Patent Document 1.

[0007] When the surgeon attempts to stop bleeding at a puncture site, they position the pressing member and support member of the hemostatic device described in Patent Document 1 so as to overlap the puncture site. When the surgeon positions the hemostatic device described in Patent Document 1 on the patient's hand, the support member may end up resting on the metacarpal bones of the index finger and thumb. With the hemostatic device described in Patent Document 1, if the support member is positioned on the patient's hand as described above and the second band is wrapped around the patient's hand, a gap is created between the pressing member and the hand, and the second band no longer fits along the outer circumference of the patient's hand. In such a situation, the pressing member and support member can be firmly fixed to the patient's hand by tightening the first band of the hemostatic device described in Patent Document 1. On the other hand, in such cases, it is necessary to tighten the first band of the hemostatic device described in Patent Document 1, which may cause pain to the patient. Therefore, with the hemostatic device described in Patent Document 1, if the first band cannot be tightened strongly due to the patient's pain, the support member ends up being positioned at an angle from the fingertips towards the forearm, closer to the surface of the hand. In the hemostatic device described in Patent Document 1, when the support member is arranged as described above, the pressing member becomes unable to apply compressive force perpendicular to the puncture site. As a result, the hemostatic device described in Patent Document 1 becomes unable to effectively apply compressive force to the puncture site.

[0008] In view of the above problems, the present invention aims to provide a hemostatic device that can effectively apply compressive force to a puncture site even when stopping bleeding at a puncture site formed at a predetermined position avoiding the metacarpal bones of the index finger and the thumb. [Means for solving the problem]

[0009] The hemostatic device according to the present invention comprises a support member configured to cover a puncture site formed on a patient, and a fixing member configured to fix the support member to the puncture site on the patient. The support member comprises a pressing member connected to the support member and configured to compress the puncture site of the patient, and the support member is When the hemostatic device is attached to the patient's hand, the part located on the fingertip side of the hand Located on the tip side of the pressing member, and The upper end portion that forms the end of the support member, When the hemostatic device is attached to the patient's hand, it is located on the patient's forearm side. Located on the base end side of the pressing member, and The fixing member has a lower end that forms the end opposite to the upper end, and a side portion that connects the upper end and the lower end, and has greater rigidity than the pressing member, and is configured to be positioned between the fingers of the patient, and comprises a first band portion extending in a first direction, and a second band portion extending in a second direction different from the first direction, and the support member is configured such that the width of the support member decreases from the upper end to the lower end, and the thickness of the side portion decreases from the upper end to the lower end, the first band portion extends from the upper end side in the first direction, and the second band portion extends from the side portion side in the second direction. [Effects of the Invention]

[0010] The hemostatic device described above has a support member that has greater rigidity than the pressing member. The support member is positioned to cover the puncture site, which is formed at a predetermined location avoiding the metacarpal bones of the patient's index finger and thumb, when stopping bleeding. The support member can prevent the pressing member from lifting away from the patient's hand by pressing it against the patient's hand. In addition, the width of the support member decreases from the upper end to the lower end. Therefore, when the support member is placed on the patient's hand, it can be positioned along the metacarpal bones of the index finger and thumb. As a result, the hemostatic device described above can tightly wrap the second band around the outer circumference of the patient's hand. Furthermore, the thickness of the side surface of the support member decreases from the upper end to the lower end. In addition, the first band, which is configured to be positioned between the patient's fingers, extends from the upper end of the support member and is configured to press the upper end of the support member against the patient's hand. As a result, the pressing member can apply force to one end of the support member when starting hemostasis with the hemostatic device attached to the patient's hand. The support member is lifted at one end by the force applied by the pressing member. As a result, the lower surface of the support member is positioned approximately parallel to the surface of the patient's hand. Therefore, by fixing the first and second band sections of the hemostatic device to the patient's hand with the pressing member and support member positioned at the puncture site, the compressive force of the pressing member can be directed perpendicular to the puncture site. This allows the hemostatic device to effectively apply compressive force to the puncture site. [Brief explanation of the drawing]

[0011] [Figure 1] This figure shows a hemostatic device according to the first embodiment, and is a plan view of each band portion as seen from the outer surface. [Figure 2] This figure shows a hemostatic device according to the first embodiment, and is a plan view as seen from the inner surface of each band portion. [Figure 3] This diagram shows a magnified view of a portion of the hemostatic device as seen from the outer surface of each band. [Figure 4] This diagram shows a magnified view of a portion of the hemostatic device as seen from the inner surface of each band. [Figure 5] It is a plan view showing an enlarged part of the hemostatic instrument as seen from the outer surface side of each belt part. [Figure 6] It is a partial cross-sectional view of the hemostatic instrument along the arrow 6A-6A shown in FIG. 5, and is a view showing the state when the pressing member (expansion member) expands. [Figure 7] It is a perspective view of the support member according to the first embodiment. [Figure 8] It is a plan view of the support member according to the first embodiment. [Figure 9] It is a side view of the support member according to the first embodiment as viewed from the direction of the arrow 9A in FIG. 8. [Figure 10] It is a view showing the hand (right hand) of a patient to be the use target of the hemostatic instrument according to the first embodiment. [Figure 11] It is a view simply showing the first usage example of the hemostatic instrument according to the first embodiment. [Figure 12] It is a view simply showing the first usage example of the hemostatic instrument according to the first embodiment. [Figure 13] It is a view simply showing the first usage example of the hemostatic instrument according to the first embodiment. [Figure 14] It is a partial cross-sectional view along the arrow 14A-14A shown in FIG. 13. [Figure 15] It is a view simply showing the second usage example of the hemostatic instrument according to the first embodiment. [Figure 16] It is a view simply showing the third usage example of the hemostatic instrument according to the first embodiment. [Figure 17] It is a view simply showing the fourth usage example of the hemostatic instrument according to the first embodiment. [Figure 18] It is a view showing the hemostatic instrument according to a modification of the first embodiment, and is a plan view as seen from the outer surface side of each belt part. [Figure 19] It is a view showing the hemostatic instrument according to the second embodiment, and is a plan view as seen from the outer surface side of each belt part. [Figure 20] It is a view showing a modification example of the support member. [Figure 21] It is a view showing a modification example regarding the shape of the support member. [Figure 22] This figure shows a modified example of the shape of the support member. [Figure 23] This figure shows a modified example of the shape of the support member. [Figure 24] This figure shows a modified example of the shape of the support member. [Modes for carrying out the invention]

[0012] Embodiments of the present invention will be described below with reference to the attached drawings. The following description is not intended to limit the technical scope or the meaning of terms as defined in the claims. Furthermore, the dimensional ratios in the drawings are exaggerated for illustrative purposes and may differ from the actual ratios.

[0013] <First Embodiment> Figures 1 to 9 are diagrams illustrating the hemostatic device 100 according to this embodiment, and Figures 10 to 17 are diagrams illustrating examples of use and effects of the hemostatic device 100.

[0014] The hemostatic device 100 can be used, for example, to stop bleeding at a puncture site when removing the sheath tube of an introducer 300 that has been placed at a puncture site (for example, each of the puncture sites p1, p2, p3, p4 described later) located distal to the patient's forearm A on the hand H, as shown in Figures 10, 13 to 17.

[0015] The specific location of the puncture site targeted for hemostasis by the hemostatic device 100 is not particularly limited, but in this embodiment, the following first puncture site p1, second puncture site p2, third puncture site p3, and fourth puncture site p4 are given as examples.

[0016] The first puncture site p1 is located in the distal radial artery (hereinafter also referred to as "vascular V1"), distal to the snuffbox of the palmar artery running along the back of the right hand H1 (hand H), distal to the patient's forearm A, as shown in Figures 10, 13, and 14. The first puncture site p1 is located between the metacarpal bone B1 of the index finger and the metacarpal bone B2 of the thumb, in a predetermined position that avoids the metacarpal bones B1 of the index finger and B2 of the thumb. The snuffbox is a cavity in the hand located near the radius when the patient extends the thumb of hand H.

[0017] The second puncture site p2 is located in artery V2, which is situated in the snuffbox of the palmar artery running along the back of the right hand H1, as shown in Figures 10 and 15. The second puncture site p2 is located on the A side of the patient's forearm than the first puncture site p1, and is situated between the extensor pollicis longus tendon T1 and the extensor pollicis brevis tendon T2 on the back of the patient's right hand H1. Furthermore, the second puncture site p2 is positioned in a predetermined location that avoids the positions of the metacarpal bone B1 of the index finger and the metacarpal bone B2 of the thumb.

[0018] The third puncture site p3 is a puncture site formed on the patient's left hand H2 (hand H) at a position corresponding to the first puncture site p1 exemplified on the patient's right hand H1, as shown in Figure 16.

[0019] The fourth puncture site p4 is a puncture site formed on the patient's left hand H2 (hand H) at a position corresponding to the second puncture site p2 exemplified on the patient's right hand H1, as shown in Figure 17.

[0020] In the description of the specification, the first puncture site p1 formed on the patient's right hand H1 is also referred to simply as "first puncture site p1," and the second puncture site p2 formed on the patient's right hand H1 is also referred to simply as "second puncture site p2." Furthermore, the third puncture site p3 formed on the patient's left hand H2 is also referred to simply as "third puncture site p3," and the fourth puncture site p4 formed on the patient's left hand H2 is also referred to simply as "fourth puncture site p4."

[0021] The following provides a detailed description of the hemostatic device 100.

[0022] <Hemostatic device> The hemostatic device 100, in general terms, as shown in Figures 1, 2, 13, and 14, includes a support member 110 configured to cover the first puncture site p1, a fixing member 120 configured to fix the support member 110 to the first puncture site p1, and a pressing member 180 connected to the support member 110 and configured to compress the first puncture site. The phrase "connected to the support member 110" above includes the fact that the pressing member 180 is indirectly connected to the support member 110. For example, as shown in Figures 1, 5, and 6, the fact that the pressing member 180 (expansion member 180) is connected to the support member 110 via a connecting member 190 is included in the phrase "connected to the support member 110".

[0023] <Pressing member> The pressing member 180 can be configured as an expansion member such as a balloon, which has a lumen 183 into which a fluid such as air can flow, as shown in Figure 6. In this embodiment, an example in which the pressing member 180 is configured as an expansion member will be described below.

[0024] The expansion member 180 is composed of, for example, a single membrane-like member formed in a bag shape to have a lumen 183. However, the expansion member 180 may also be formed by joining the edges of two sheet-like membrane materials with a lumen 183 formed between them, with the two sheet-like membrane materials formed in a substantially rectangular shape.

[0025] The expansion member 180 expands when a fluid such as air is supplied to the lumen 183, and contracts when the fluid supplied to the lumen 183 is discharged. Figure 6 shows a cross-sectional view of the expansion member 180 when fluid is supplied to it and the expansion member 180 is expanded.

[0026] The membrane material constituting the expansion member 180 can be made of, for example, a resin material having a predetermined thickness. A tube 203 (see Figures 1 and 2), which will be described later, is connected to the lumen 183 of the expansion member 180.

[0027] The material of the film-like member constituting the expansion member 180 is not particularly limited, but for example, polyolefins such as polyvinyl chloride, polyethylene, polypropylene, polybutadiene, and ethylene-vinyl acetate copolymer (EVA), polyesters such as polyethylene terephthalate (PET) and polybutylene terephthalate (PBT), polyvinylidene chloride, silicone, polyurethane, polyamide elastomer, polyurethane elastomer, polyester elastomer, nylon, nylon elastomer, or any combination thereof (blended resin, polymer alloy, laminate, etc.) can be used.

[0028] As shown in Figure 6, the extension member 180 is positioned on the inner surface 130a side of the covering portion 130 provided by the fixing member 120.

[0029] The inner surface 130a of the covering portion 130 is the surface that is positioned on the body surface side of the patient's right hand H1 when the hemostatic device 100 is attached to the patient's right hand H1 (see Figure 14). The outer surface 130b of the covering portion 130 is the surface located on the opposite side of the inner surface 130a.

[0030] As shown in Figure 6, a connecting member 190 is placed on the inner surface 130a of the covering portion 130. The expansion member 180 can be connected to the support member 110 via the connecting member 190. The outer edge of the expansion member 180 can be connected to the connecting member 190, for example, by adhesive or fusion.

[0031] The connecting member 190 is positioned to form a space 191 between itself and the covering portion 130. The support member 110 is positioned in the space 191.

[0032] The connecting member 190 can be made of, for example, a resin material. The outer edge of the connecting member 190 can be connected to the covering portion 130 by, for example, adhesive or fusion.

[0033] The expansion member 180 has a circular shape in the plan view shown in Figures 1 to 5. However, the shape of the expansion member 180 in the plan view is not limited to a circle. Furthermore, there are no particular restrictions on the cross-sectional shape of the expansion member 180 before and after expansion, or on the specific structure of the expansion member 180.

[0034] As shown in Figures 6, 13, and 14, the expansion member 180 is equipped with a marker portion 185 for aligning the expansion member 180 with the first puncture site p1.

[0035] As shown in Figure 6, the marker portion 185 is positioned on the outer surface of the expansion member 180. Alternatively, the marker portion 185 may be positioned on the inner surface of the expansion member 180 facing the lumen 183.

[0036] The marker portion 185 can be formed, for example, as a rectangular marker with the entire marker portion 185 formed in color. The specific shape, color, formation method, and position on the extension member 180 of the marker portion 185 are not particularly limited. For example, the marker portion 185 may consist of a transparent central part and a colored linear frame surrounding the central part.

[0037] <Support member> As shown in Figures 5, 6, 7, 8, and 9, the support member 110 has an upper end portion 111 located on the tip side of the extension member 180 and forming the end of the support member 110, a lower end portion 112 located on the base side of the extension member 180 and forming the end opposite to the upper end portion 111, and a side portion 113 connecting the upper end portion 111 and the lower end portion 112.

[0038] "The tip end of the expansion member 180" refers to the end of the expansion member 180 that is positioned towards the patient's fingertips when the hemostatic device 100 is attached to the patient's right hand H1 (the upper side in Figures 5 and 13). "The proximal end of the expansion member 180" refers to the end of the expansion member 180 that is positioned towards the patient's forearm A when the hemostatic device 100 is attached to the patient's right hand H1 (the lower side in Figures 5 and 13).

[0039] As shown in Figure 8, the support member 110 is configured such that its width W decreases from the upper end 111 to the lower end 112.

[0040] Furthermore, as shown in Figure 9, the support member 110 is configured such that the thickness of the side portion 113 decreases from the upper end 111 to the lower end 112. In other words, in the cross-sectional view shown in Figure 6 and the cross-sectional view shown in Figure 9, the upper surface 110b of the support member 110 is inclined toward the lower surface 110a from the upper end 111 to the lower end 112.

[0041] The lower surface 110a is the side on which the expansion member 180 is placed, and the upper surface 110b is the side on which the covering portion 130 is placed.

[0042] As shown in Figure 5, the support member 110 has a shape that is symmetrical with respect to the long axis (axis along the extension direction) C of the first band portion 140. Specifically, as shown in Figure 8, the support member 110 has a roughly triangular planar shape. The corners 115a, 115b, and 115c located on the outer circumferential surface of the support member 110 have a rounded shape.

[0043] As shown in Figure 7, the support member 110 has a hole 117 that penetrates the support member 110 in the thickness direction. As shown in Figure 6, the hole 117 can be positioned to overlap with the expansion member 180. In this embodiment, the hole 117 is positioned to overlap with the marker portion 185 placed on the expansion member 180.

[0044] In the hemostatic device 100, the portion of the expansion member 180 where the marker portion 185 is provided, the portion of the connecting member 190 that overlaps with the marker portion 185, and the portion of the covering portion 130 that overlaps with the marker portion 185 can be made transparent. When the members 130, 180, and 190 are configured in this way, the surgeon can easily visually confirm the position of the marker portion 185 on the expansion member 180 and / or the first puncture site p1 when attaching the hemostatic device 100 to the patient's right hand H1, as shown in Figures 11 to 13, through the hole 117 of the support member 110 and the transparent portions of the members 130, 180, and 190. Note that the above term "transparent" includes colored transparent, colorless transparent, and translucent.

[0045] The support member 110 can be made of a material having greater rigidity than the expansion member 180. With this configuration, when the expansion member 180 applies compressive force to the first puncture site p1, as shown in Figure 14, the support member 110 can press the expansion member 180 against the patient's right hand H1. This prevents the expansion member 180 from lifting away from the patient's right hand H1.

[0046] When the expansion member 180 is constructed from the aforementioned materials, the supporting member 110 can be constructed from materials such as acrylic resin, polyvinyl chloride (especially rigid polyvinyl chloride), polyethylene, polypropylene, polyolefins such as polybutadiene, polystyrene, poly-(4-methylpentene-1), polycarbonate, ABS resin, polymethyl methacrylate (PMMA), polyacetal, polyacrylate, polyacrylonitrile, polyvinylidene fluoride, ionomer, acrylonitrile-butadiene-styrene copolymer, polyethylene terephthalate (PET), etc.

[0047] <Fixing components> As shown in Figures 1, 2, 3, 4, and 13, the fixing member 120 has a covering portion 130, a first strip portion 140, a second strip portion 150, and a third strip portion 160.

[0048] The covering portion 130 constitutes the main body portion to which the strip portions 140, 150, and 160 are connected. As shown in Figures 5 and 6, a support member 110, an expansion member 180, and a connecting member 190 are arranged on the covering portion 130.

[0049] The fixing member 120 may be formed integrally with the covering portion 130 and the strip portions 140, 150, and 160, or the members constituting the strip portions 140, 150, and 160 may be connected to the members constituting the covering portion 130. Alternatively, the fixing member 120 may not have a covering portion 130, and the strip portions 140, 150, and 160 may be directly connected to the support member 110.

[0050] The first band portion 140 is configured to be positioned between the patient's fingers. The first band portion 140 extends in a predetermined first direction.

[0051] As shown in Figures 1 and 2, the first band portion 140 comprises one end 141 located on the support member 110 side, another end 143 located on the opposite side of the one end 141, and a main body portion 145 extending between the one end 141 and the other end 143.

[0052] The first band portion 140 can be positioned, for example, as shown in Figure 13, so as to hook onto the interdigital portion fb located between the thumb and index finger of the patient's right hand H1, with the expansion member 180 positioned at the first puncture site p1.

[0053] The second strip portion 150 extends in a second direction different from the first direction in which the first strip portion 140 extends. Specifically, as shown in Figure 5, the second strip portion 150 extends from one side (the left side in Figure 5) of the side portion 113 of the support member 110.

[0054] As shown in Figures 1 and 2, the second band portion 150 comprises one end 151 located on the support member 110 side, another end 153 located on the opposite side of the one end 151, and a main body portion 155 extending between the one end 151 and the other end 153.

[0055] The third strip portion 160 extends in a third direction different from the first direction, which is the extending direction of the first strip portion 140, and the second direction, which is the extending direction of the second strip portion 150. Specifically, as shown in Figure 5, the third strip portion 160 extends from the other side (right side in Figure 5) of the side portion 113, which is located on the opposite side from the second strip portion 150 with the support member 110 in between.

[0056] As shown in Figures 1 and 2, the third band portion 160 comprises one end 161 located on the side of the support member 110, another end 163 located on the opposite side of the one end 161, and a main body portion 165 extending between the one end 161 and the other end 163.

[0057] As shown in Figures 11, 12, and 13, the second band portion 150 and the third band portion 160 can be positioned to wrap around the outer circumference of the right hand H1 when attaching the hemostatic device 100 to the patient's right hand H1.

[0058] The constituent materials of each strip portion 140, 150, and 160 are not particularly limited, but can be made of, for example, polyvinyl chloride resin, polyurethane resin, polyester resin, etc. Furthermore, there are no particular restrictions on the shape, length, thickness, etc., of each strip portion 140, 150, and 160.

[0059] As shown in Figures 1 and 2, the fixing member 120 has four fixing parts: a first fixing part 171, a second fixing part 172, a third fixing part 173, and a fourth fixing part 174, which allow each band portion 140, 150, and 160 to be fixed to the patient's right hand H1.

[0060] As shown in Figure 1, the first fixing part 171 is positioned on the outer surface of the main body 155 of the second band portion 150. The second fixing part 172 is positioned on the outer surface of the main body 165 of the third band portion 160.

[0061] As shown in Figure 2, a third fixing part 173 is positioned on the inner surface of the main body 155 of the second band portion 150. A fourth fixing part 174 is positioned on the inner surface of the main body 145 of the first band portion 140.

[0062] The first fixing part 171 and the second fixing part 172 are made up of the male side of the hook-and-loop fastener. The third fixing part 173 and the fourth fixing part 174 are made up of the female side of the hook-and-loop fastener. The hook-and-loop fastener in this specification is a fastener that can be attached and detached on a surface, such as Magic Tape® or Velcro®.

[0063] The main body portion 155 of the second band portion 150 and the main body portion 165 of the third band portion 160 are configured to be detachable via the third fixing portion 173 and the second fixing portion 172. In addition, the main body portion 145 of the first band portion 140 and the main body portion 145 of the second band portion 150 are configured to be detachable via the first fixing portion 171 and the fourth fixing portion 174.

[0064] As shown in Figure 1, the second fixing portion 172 located on the main body portion 165 of the third band portion 160 branches into multiple parts, a first branch portion 172a and a second branch portion 172b, at the end located on the other end 163 side of the third band portion 160. Each branch portion 172a and 172b extends in a substantially straight line from the starting point of the branch formed on the one end 161 side of the third band portion 160 toward the other end 163 side.

[0065] The specific structure of each fixing part 171, 172, 173, and 174 is not limited as long as the support member 110 and the expansion member 180 can be fixed to the patient's right hand H1 by connecting the band parts 140, 150, and 160 with the hemostatic device 100 placed on the patient's right hand H1. For example, the installation of some fixing parts can be omitted or the position of the fixing parts on each band part 140, 150, and 160 can be changed as desired. Also, if each fixing part 171, 172, 173, and 174 is made of hook-and-loop fasteners, the male and female sides of the hook-and-loop fasteners can be swapped. Furthermore, each fixing part 171, 172, 173, and 174 may be made of, for example, snaps, buttons, clips, or a connecting mechanism having a frame part with holes or protrusions and an engaged part with holes that can engage with the frame part.

[0066] <Injection part> As shown in Figures 1 and 2, the hemostatic device 100 has an injection section 201 for injecting fluid into the expansion member 180.

[0067] The injection section 201 consists of a connector with a built-in check valve (not shown). A syringe (not shown) can be connected to the injection section 201.

[0068] A buffer member 202 having an expandable space is positioned between the injection section 201 and the expansion member 180. The buffer member 202 is made up of a flexible, bag-shaped member with an internal space. The buffer member 202 may also be provided with an arrow-shaped marker indicating the direction of syringe insertion into the injection section 201.

[0069] An injection section 201 is connected to one end of the buffer member 202. The lumen of the injection section 201 is in communication with the space of the buffer member 202. However, while the check valve built into the injection section 201 is closed, communication between the lumen of the injection section 201 and the space of the buffer member 202 is blocked.

[0070] A flexible tube 203 is connected to the other end of the cushioning member 202. The lumen of the tube 203 communicates with the space of the cushioning member 202. In addition, the other end of the tube 203, opposite to the end connected to the cushioning member 202, is connected to the expansion member 180. The lumen of the tube 203 communicates with the lumen 183 of the expansion member 180.

[0071] When expanding the expansion member 180, the surgeon inserts the tip of a syringe (not shown) into the injection port 201 and opens the check valve. With the check valve of the injection port 201 open, the surgeon pushes the plunger of the syringe to inject air from inside the syringe into the lumen 183 of the expansion member 180.

[0072] When air is injected into the lumen 183 of the expansion member 180, the expansion member 180 expands. When the expansion member 180 expands, the buffer member 202, which communicates with the lumen 183 of the expansion member 180 via the tube 203, also expands. By visually confirming the expansion of the buffer member 202, the operator can easily confirm that the expansion member 180 has expanded without any air leakage.

[0073] When the surgeon deflates the expansion member 180, he inserts the tip of the syringe into the injection section 201 and pulls the plunger of the syringe. By performing the above operation, the surgeon can expel the air from the lumen 183 of the expansion member 180 into the syringe.

[0074] The injection section 201, the buffer member 202, and the tube 203 may be prepared and provided connected to the expansion member 180, or they may be prepared and provided separately from the expansion member 180.

[0075] <Examples of hemostatic device use> Next, with reference to Figures 10 to 14, a first example of use of the hemostatic device 100 will be described.

[0076] In the first example of use, the procedure for using the hemostatic device 100 to stop bleeding at the first puncture site p1 formed on the patient's right hand H1, as shown in Figure 10, will be explained.

[0077] Figure 11 shows the state after various procedures have been completed using the sheath tube of the introducer 300 inserted into the first puncture site p1.

[0078] When the surgeon attaches the hemostatic device 100 to the patient's right hand H1, he positions the expansion member 180 and the support member 110 so that they overlap at the first puncture site p1, as shown in Figure 11. At this time, the surgeon can visually confirm the position of the marker portion 185 placed on the expansion member 180 through the hole 117 (see Figure 7) formed in the support member 110, and by positioning the marker portion 185 at the first puncture site p1, the expansion member 180 and the support member 110 can be appropriately positioned at the first puncture site p1.

[0079] When the surgeon attaches the hemostatic device 100 to the patient's right hand H1, the surgeon positions the support member 110 so that it overlaps with the metacarpal bone B1 of the index finger and the metacarpal bone B2 of the thumb. As shown in Figure 10, the distance between the metacarpal bone B1 of the index finger and the metacarpal bone B2 of the thumb gradually narrows from the fingertip side toward the forearm A side. As mentioned above, the width W of the support member 110 shortens from the upper end 111 side toward the lower end 112 side (see Figure 8). Therefore, the surgeon can position the support member 110 so that it follows the metacarpal bone B1 of the index finger and the metacarpal bone B2 of the thumb. By positioning the support member 110 so that it follows the metacarpal bone B1 of the index finger and the metacarpal bone B2 of the thumb, the surgeon can prevent a gap from forming between the expansion member 180 and the right hand H1.

[0080] As shown in Figure 12, the surgeon wraps the second band portion 150 and the third band portion 160 around the outer circumference of the patient's right hand H1. The surgeon can connect the second band portion 150 and the third band portion 160 via the fixation points 172 and 173 by bringing the third fixation point 173 (see Figure 2), which is located on the inner surface of the second band portion 150, into contact with the second fixation point 172 (see Figure 1), which is located on the outer surface of the third band portion 160. The surgeon can securely wrap each band portion 150 and 160 around the outer circumference of the right hand H1 by connecting the band portions 150 and 160 together with the support member 110 overlapping with the metacarpal bone B1 of the index finger and the metacarpal bone B2 of the thumb.

[0081] When stopping bleeding at the first puncture site p1, the surgeon can connect the third fixation site 173, which is positioned on the inner surface of the second band portion 150, to the second bifurcation 172b of the second fixation site 172. The first puncture site p1 is located closer to the fingertips of the patient's right hand H1 than the second puncture site p2 (see Figure 10). Therefore, when stopping bleeding at the first puncture site p1, the surgeon can narrow the range over which each band portion 150 and 160 restrains the patient's right hand H1 by connecting the second band portion 150 and the third band portion 160 via the second bifurcation 172b, which is located closer to the forearm A of the patient's right hand H1 than the first bifurcation 172a.

[0082] Furthermore, the second fixation point 172 is located on the main body 165 of the third band portion 160. Therefore, a portion of the main body 165 exists between the second fixation point 172 and one end 161 of the third band portion 160. When the surgeon wraps the third band portion 160 around the patient's right hand H1, by pulling the main body 165 with one end 161 of the third band portion 160 as the pivot point, the surgeon can prevent the first branch portion 172a, which is not used to connect the second band portion 150 and the third band portion 160, from lifting away from the patient's right hand H1. For the reasons described above, when the surgeon connects the second band portion 150 and the third band portion 160 via the second branch portion 172b, the surgeon can prevent the first branch portion 172a from lifting away (see Figures 15 and 17).

[0083] It is also possible to adopt a configuration in which the third band portion 160 itself is divided into multiple parts, without providing the first branch portion 172a and the second branch portion 172b at the second fixation portion 172 (see Figure 19). However, if the third band portion 160 is divided at one end 161 located on the covering portion 130 side, when the surgeon wraps the third band portion 160 around the patient's right hand H1, the entire area (edge) where the third band portion 160 is connected to the covering portion 130 cannot be held down by the second band portion 150. As a result, the adhesion between the covering portion 130 and the third band portion 160 to the right hand H1 is reduced. Furthermore, if the third band portion 160 is divided, the part of the third band portion 160 that is not connected to the second band portion 150 will hang down from the hemostatic device 100 while the hemostatic device 100 is in use. As a result, the third band portion 160 will get in the way when attaching the hemostatic device 100. Furthermore, if the third band portion 160 is divided, the width of the third band portion 160 must be increased. As a result, it becomes difficult to make the widths of the second band portion 150 and the third band portion 160 approximately the same. In addition, when the hemostatic device 100 is attached to the patient's right hand H1, it becomes difficult to apply force evenly to the positions where the second band portion 150 is wrapped and where the third band portion 160 is wrapped.

[0084] As shown in Figure 13, the surgeon places the first band portion 140 through the interdigital space fb located between the thumb and index finger of the patient's right hand H1, while positioning a portion of the first band portion 140 on the palm side of the patient's right hand H1. At this time, the surgeon can connect the first band portion 140 and the second band portion 150 via the fixation points 172 and 174 by bringing the fourth fixation point 174 (see Figure 2), located on the inner surface of the first band portion 140, into contact with the first fixation point 171 (see Figure 1), located on the outer surface of the second band portion 150.

[0085] The support member 110 has a roughly triangular shape with three sides. The hemostatic device 100 has three band portions 140, 150, and 160 that are arranged to extend from each side of the support member 110. Therefore, by connecting the band portions 140, 150, and 160 to each other, the hemostatic device 100 can fix the support member 110 to the patient's right hand H1 while applying equal force to each side of the support member 110.

[0086] Furthermore, the support member 110 has a shape that is symmetrical with respect to the long axis C of the first band portion 140. Therefore, the hemostatic device 100 can apply force evenly to the support member 110 in the left-right direction by wrapping the band portions 150 and 160, which extend in the left-right direction with respect to the first band portion 140, around the patient's right hand H1. As a result, the hemostatic device 100 can prevent the support member 110 from shifting position when it is positioned on the patient's right hand H1.

[0087] The surgeon expands the expansion member 180 by injecting air into it while the syringe is connected to the injection port 201. As shown in Figure 14, when the expansion member 180 expands, the hemostatic device 100 applies a compressive force to the first puncture site p1.

[0088] When the hemostatic device 100 is attached to the patient's right hand H1 and the expansion member 180 expands, the support member 110 presses the expansion member 180 against the patient's right hand H1. This prevents the hemostatic device 100 from lifting away from the patient's right hand H1.

[0089] When the surgeon uses the hemostatic device 100 to stop bleeding, they can tighten the first band portion 140, which is positioned in the interdigital portion fb, more strongly in order to increase the fixation force of the support member 110 to the patient's right hand H1. By tightening the first band portion 140 as described above, the surgeon can firmly fix the support member 110 to the patient's right hand H1 even if the support member 110 is positioned in an unstable manner on the patient's right hand H1. However, tightening the first band portion 140 as described above may cause pain to the patient. Therefore, if the surgeon is unable to tighten the first band portion 140 strongly due to the patient's pain or other reasons, the hemostatic device 100 may be positioned with the lower surface 110a of the support member 110 tilted relative to the body surface of the patient's right hand H1.

[0090] To address the above-mentioned issues, the hemostatic device 100 is configured such that the thickness of the side portion 113 of the support member 110 decreases from the upper end 111 to the lower end 112. In addition, the first band portion 140, which is configured to be positioned in the interdigital portion fb located between the patient's fingers, extends from the upper end 111 side of the support member 110 and is configured to press the upper end 111 side of the support member 110 against the patient's right hand F. Therefore, when the hemostatic device 100 is attached to the patient's right hand H1 and the expansion member 180 begins to expand, the expansion member 180 applies force to the upper end 111 of the support member 110. The upper end 111 side of the support member 110 lifts up due to the force applied by the expansion member 180. As a result, as shown in Figure 14, the lower surface 110a of the support member 110 is positioned approximately parallel to the body surface of the patient's right hand H1. Therefore, when the expansion member 180 of the hemostatic device 100 is expanded, it can apply a compressive force perpendicular to the first puncture site p1.

[0091] The support member 110 has rounded corners 115a, 115b, and 115c (see Figure 8). Therefore, when the hemostatic device 100 expands the expansion member 180 and applies compressive force to the puncture site p1, the corners 115a, 115b, and 115c of the support member 110 are prevented from digging into the patient's right hand H1.

[0092] By following the above procedure, the surgeon can use the hemostatic device 100 to stop bleeding at the first puncture site p1 formed on the patient's right hand H1.

[0093] Next, the second to fourth uses of the hemostatic device 100 will be explained with reference to Figures 15 to 17. In the explanation of the second to fourth uses, the content already explained in the first use will be omitted as appropriate.

[0094] Figure 15 shows a second example of the hemostatic device 100. The second example of use is a method of stopping bleeding at the second puncture site p2 (see Figure 10) using the hemostatic device 100. In the second example of use, the surgeon can connect the second band portion 150 and the third band portion 160 via the fixation points 172 and 173 by bringing the third fixation point 173 (see Figure 2), which is located on the inner surface of the second band portion 150, into contact with the first branch portion 172a (see Figure 1) of the second fixation point 172, which is located on the outer surface of the third band portion 160.

[0095] When stopping bleeding at the second puncture site p2, the surgeon can reduce the extent to which the patient's right hand H1 is restrained by each of the bands 150 and 160 by connecting the second band 150 and the third band 160 via the first band 172a, which is located closer to the patient's fingertip than the first band 172a.

[0096] Figure 16 shows a third example of the hemostatic device 100.

[0097] The third use case is a method of stopping bleeding at a third puncture site p3 formed on the patient's left hand H2 using the hemostatic device 100. In the third use case, the operator can connect the second band 150 and the third band 160 via the respective fixing parts 172 and 173 by bringing the third fixing part 173 (see Figure 2), which is located on the inner surface of the second band 150, into contact with the second branch portion 172b (see Figure 1) of the second fixing part 172, which is located on the outer surface of the third band 160.

[0098] When stopping bleeding at the third puncture site p3, the surgeon can narrow the range in which the patient's left hand H2 is restrained by each of the bands 150 and 160 by connecting the second band 150 and the third band 160 via the second band 172b, which is located on the forearm A side of the patient's left hand H2 than the first band 172a.

[0099] Figure 17 shows a fourth example of the hemostatic device 100's use.

[0100] The fourth use case is a method of stopping bleeding at a fourth puncture site p4 formed on the patient's left hand H2 using the hemostatic device 100. In the fourth use case, the operator can connect the second band 150 and the third band 160 via the respective fixing parts 172 and 173 by bringing the third fixing part 173 (see Figure 2), which is located on the inner surface of the second band 150, into contact with the first branch portion 172a (see Figure 1) of the second fixing part 172, which is located on the outer surface of the third band 160.

[0101] When stopping bleeding at the fourth puncture site p4, the surgeon can narrow the range in which the patient's left hand H2 is restrained by each of the bands 150 and 160 by connecting the second band 150 and the third band 160 via the first band 172a, which is located closer to the fingertips of the patient's left hand H2 than the second band 172b.

[0102] As described above, the hemostatic device 100 according to this embodiment includes a support member 110 configured to cover the first puncture site p1, a fixing member 120 configured to fix the support member 110 to the first puncture site p1, and an expansion member 180 connected to the support member 110 and configured to compress the first puncture site p1. The support member 110 has an upper end portion 111 located on the tip side of the expansion member 180 and forming the end of the support member 110, a lower end portion 112 located on the base end side of the expansion member 180 and forming the end opposite to the upper end portion 111, and a side portion 113 connecting the upper end portion 111 and the lower end portion 112, and has greater rigidity than the expansion member 180. The fixing member 120 is configured to be placed between the fingers of the patient and includes a first band portion 140 extending in a first direction and a second band portion 150 extending in a second direction different from the first direction. The support member 110 is configured such that the width W of the support member 110 decreases from the upper end 111 to the lower end 112, and the thickness of the side portion 113 decreases from the upper end 111 to the lower end 112. The first band portion 140 extends in a first direction from the upper end 111 side, and the second band portion 150 extends in a second direction from the side portion 113 side.

[0103] The hemostatic device 100 configured as described above has a support member 110 which has greater rigidity than the expansion member 180. The support member 110 is positioned together with the expansion member 180 to cover the first puncture site p1, which is formed at a predetermined position avoiding the metacarpal bone B1 of the index finger and the metacarpal bone B2 of the thumb of the patient's right hand H1, when stopping bleeding. The support member 110 can prevent the expansion member 180 from lifting away from the patient's right hand H1 by pressing the expansion member 180 against the patient's right hand H1. In addition, the width W of the support member 110 decreases from the upper end 111 to the lower end 112. Therefore, when the support member 110 is placed on the patient's right hand H1, the support member 110 can be positioned along the metacarpal bone B1 of the index finger and the metacarpal bone B2 of the thumb. Therefore, the second band portion 150 can be tightly wrapped around the outer circumference of the patient's right hand H1. Furthermore, the support member 110 has a side portion 113 that is thinner from the upper end 111 to the lower end 112. In addition, the first band portion 140, which is configured to be positioned in the interdigital portion fb located between the patient's fingers, extends from the upper end 111 side of the support member 110 and is configured to press the upper end 111 side of the support member 110 against the patient's right hand H1. Therefore, when hemostasis is initiated with the hemostatic device 100 attached to the patient's right hand H1, the expansion member 180 can apply force to the upper end 111 of the support member 110. The upper end 111 side of the support member 110 lifts up due to the force applied by the expansion member 180. As a result, the lower surface 110a of the support member 110 is positioned approximately parallel to the body surface of the patient's right hand H1. Therefore, by positioning the expansion member 180 and the support member 110 at the first puncture site p1 and fixing the first band portion 140 and the second band portion 150 to the patient's right hand H1, the hemostatic device 100 can direct the compressive force of the expansion member 180 perpendicular to the first puncture site p1. As a result, the hemostatic device 100 can effectively apply compressive force to the first puncture site p1.

[0104] Furthermore, the support member 110 has an outer shape that is symmetrical with respect to the long axis C of the first band portion 140.

[0105] In the hemostatic device 100 having the above configuration, the support member 110 has an outer shape that is symmetrical with respect to the long axis C of the first band portion 140. Therefore, by wrapping the band portions 150 and 160, which extend in the left-right direction with respect to the first band portion 140 as the reference, around the patient's right hand H1, an even tensile force can be applied to the support member 110 in the left-right direction. As a result, the hemostatic device 100 can prevent the support member 110 from shifting position when it is positioned on the patient's right hand H1.

[0106] Furthermore, the fixing member 120 includes a third band portion 160 that extends in a third direction different from the first and second directions. The third band portion 160 extends in the third direction from a side portion 113 located on the opposite side of the second band portion 150, with the support member 110 in between. The third band portion 160 includes one end portion 161 located on the support member 110 side, another end portion 163 located on the opposite side of the one end portion 161, and a main body portion 165 extending between the one end portion 161 and the other end portion 163. The main body portion 165 includes a second fixing portion 172 that is detachably configured to be attached to the second band portion 150. The end portion of the second fixing portion 172 located on the other end portion 163 side is branched into a plurality of portions 172a, 172b.

[0107] With the hemostatic device 100 configured as described above, when wrapping the third band portion 160 around the patient's right hand H1, the main body portion 165 can be pulled using one end portion 161 of the third band portion 160 as a pivot point, thereby preventing the first branch portion 172a (or second branch portion 172b) of the second fixation portion 172, which is not used to connect the second band portion 150 and the third band portion 160, from lifting away from the patient's right hand H1. Furthermore, when connecting the second band portion 150 and the third band portion 160, the surgeon can selectively connect the third fixation portion 173, which is located on the inner surface of the second band portion 150, to the first branch portion 172a and the second branch portion 172b. As a result, when the hemostatic device 100 is attached to the patient's right hand H1, the range over which each band portion 150, 160 restrains the patient's right hand H1 can be narrowed.

[0108] Furthermore, the corners 115a, 115b, and 115c located on the outer circumferential surface of the support member 110 have a rounded shape.

[0109] Because the hemostatic device 100 has the above configuration, when the expansion member 180 expands and applies compressive force to the first puncture site p1, the corners 115a, 115b, and 115c of the support member 110 are prevented from digging into the patient's right hand H1.

[0110] Furthermore, the support member 110 has a hole 117 at a position that overlaps with the expansion member 180.

[0111] Because the hemostatic device 100 has the above configuration, when the surgeon places the expansion member 180 and the support member 110 at the first puncture site p1, the position of the marker portion 185 placed on the expansion member 180 can be visually confirmed through the hole 117 formed in the support member 110. Therefore, the hemostatic device 100 can appropriately position the expansion member 180 at the first puncture site p1 based on the marker portion 185.

[0112] Next, a hemostatic device according to a modified version of the first embodiment and a hemostatic device according to the second embodiment will be described. In the following description, explanations of the components and the procedure for using the hemostatic device, etc., which have already been described in the first embodiment, will be omitted as appropriate. Also, in the modified version and the second embodiment, any content not specifically described can be the same as in the first embodiment.

[0113] <Variation> The shape of the second fixing portion 172, which is positioned on the third band portion 160, can be arbitrarily changed. For example, as shown in Figure 18, the second fixing portion 172 can be configured in a heart-like shape with two branching portions 172a and 172b formed on the other end 163 side of the third band portion 160.

[0114] <Second Embodiment> As shown in Figure 19, the hemostatic device 100A according to the second embodiment includes a third band portion 160 in which the fixing member 120 extends in a third direction different from the first and second directions.

[0115] The third band portion 160 extends in a third direction from the side portion 113 (see Figure 8) located on the opposite side from the second band portion 150, with the support member 110 in between.

[0116] The third band portion 160 comprises one end 161 located on the support member 110 side, another end 163 located on the opposite side of the one end 161, and a main body portion 165 extending between the one end 161 and the other end 163.

[0117] The third band portion 160 is branched into a first portion 160a and a second portion 160b at the main body portion 165.

[0118] A second fixing portion 172 can be placed in each of the first portion 160a and the second portion 160b.

[0119] In the hemostatic device 100A according to the second embodiment, when the surgeon connects the second band portion 150 and the third band portion 160, the third fixing portion 173 (see Figure 2) located on the inner surface of the second band portion 150 can be selectively connected to the first portion 160a and the second portion 160b. As a result, the hemostatic device 100A according to the second embodiment, like the hemostatic device 100 according to the first embodiment, can narrow the range over which each band portion 150, 160 restrains the patient's right hand H1 when the hemostatic device 100A is attached to the patient's hand H.

[0120] <Variations of support members> The following describes modified examples of the support member with reference to Figures 20 to 24.

[0121] As shown in Figure 20, the support member 110A does not have a hole 117 (see Figure 7). Thus, it is not necessary to form a hole 117 in the support member 110A. In the case where the hole 117 is not provided, as in the support member 110A, the portion of the support member 110A that overlaps with the marker portion 185 (see Figure 6) or the entire support member 110A can be made transparent.

[0122] As shown in Figures 21 to 24, the planar shape of the support member is not particularly limited, as long as the width of the support member is formed to decrease from the upper end 111 to the lower end 112. Support member 110B may have a triangular shape with rounded corners, as shown in Figure 21. Support member 110C may have a pentagonal shape, as shown in Figure 22. Support member 110D may have a trapezoidal shape, as shown in Figure 23. Support member 110E may have a hexagonal shape, as shown in Figure 24.

[0123] Furthermore, the formation of the holes 117 may be omitted in each of the support members 110B, 110C, 110D, and 110E shown in Figures 21 to 24. Also, the corners of each of the support members 110C, 110D, and 110E shown in Figures 22 to 24 may be rounded.

[0124] Although the hemostatic device according to the present invention has been described above through embodiments and modifications, the present invention is not limited to what has been described in the specification and can be modified as appropriate based on the claims.

[0125] The shape and dimensions of each part of the hemostatic device are not particularly limited and can be changed as appropriate, as long as they can compress the puncture site and stop bleeding by the pressure member placed at the puncture site.

[0126] This application is based on Japanese Patent Application No. 2021-057231, filed on 30 March 2021, the disclosures of which are cited in their entirety by reference. [Explanation of Symbols]

[0127] 100, 100A hemostatic devices 110, 110A, 110B, 110C, 110D, 110E Support members 110a Lower surface of support member 110b Upper surface of support member 111 Upper end of support member 112 Lower end of support member 113 Side portion of the support member 115a, 115b, 115c Corner of the support member 120 Fixing member 130 Covering part 130a Inner surface of the coated portion 130b Outer surface of the coated portion 140 First Belt Section 141 One end of the first band 143 Other end of the first band 145 Main body of the first band 150 Second belt section 151 One end of the second band 153 Other end of the second band 155 Main body of the second band 160 Third Belt Section 160a Part 1 160b 2nd part 161 One end of the third band 163 Other end of the third band 165 Main body of the third belt section 171 1st fixation site 172 Second fixation site 172a First branch 172b Second branch 173 Third fixation site 174 4th fixation site 180 Expansion member (pressing member) 183 Luminus of the expansion member 185 Marker section 190 Connecting Member 191 Spatial part A Forearm B1 Metacarpal bone of the index finger B2 Metacarpal bone of the thumb C Long axis of the first band H hand H1 right hand H2 left hand T1 extensor pollicis longus tendon T2 extensor hallucis brevis tendon V1 blood vessel (distal radial artery) V2 artery fb between fingers p1 First puncture site p2 Second puncture site p3 Third puncture site p4 Fourth puncture site

Claims

1. A support member configured to cover the puncture site formed on the patient, A fixing member configured to fix the support member to the puncture site of the patient, It has a pressing member connected to the support member and configured to compress the puncture site of the patient, The support member has an upper end that is located on the tip side of the pressing member, which is located on the fingertip side of the hand when the hemostatic device is attached to the patient's hand, and forms the end of the support member; a lower end that is located on the base end side of the pressing member, which is located on the forearm side of the patient when the hemostatic device is attached to the patient's hand, and forms the end opposite to the upper end; and a side portion that connects the upper end and the lower end, and has greater rigidity than the pressing member. The fixing member is configured to be positioned between the fingers of the patient and comprises a first band portion extending in a first direction and a second band portion extending in a second direction different from the first direction. The support member is configured such that the width of the support member decreases from the upper end to the lower end, and the thickness of the side portion decreases from the upper end to the lower end. The first band portion extends from the upper end side in the first direction, The second band portion is a hemostatic device extending in the second direction from the side portion.

2. The hemostatic device according to claim 1, wherein the support member has an outer shape that is symmetrical with respect to the long axis of the first band portion.

3. The fixing member comprises a third strip portion extending in a third direction different from the first and second directions, The third band portion extends in a third direction from the side portion located on the opposite side of the second band portion with respect to the support member, The third band portion comprises one end located on the support member side, another end located on the opposite side of the one end, and a main body portion extending between the one end and the other end. The main body portion is equipped with a fixing portion that is detachably configured to be attached to the second band portion, The hemostatic device according to claim 1 or claim 2, wherein the fixing portion has an end located on the other end side that is branched into multiple parts.

4. The fixing member comprises a third strip portion extending in a third direction different from the first and second directions, The third band portion extends in a third direction from the side portion located on the opposite side of the second band portion with respect to the support member, The third band portion comprises one end located on the support member side, another end located on the opposite side of the one end, and a main body portion extending between the one end and the other end. The hemostatic device according to claim 1 or claim 2, wherein the third band portion is branched at the main body portion.

5. The hemostatic device according to any one of claims 1 to 4, wherein the corners located on the outer surface of the support member have a rounded shape.

6. The hemostatic device according to any one of claims 1 to 5, wherein the support member has a hole in a position that overlaps with the pressing member.

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