JP2021153717A - Hemostatic device - Google Patents

Abstract

To provide a hemostatic device which allows an operator to visually understand an expansion state of an expansion member and to easily confirm a rough indication of oppression force applied to a puncture site by the expansion member.SOLUTION: A deformation member 140 equipped by a hemostatic device 100 includes a first surface 141 facing an expansion member 110, a second surface 142 opposed to the first surface, and a side wall 143 positioned between the first surface and the second surface. The side wall includes a side wall marker section 150 positioned between the first surface and the second surface. The side wall marker section is configured that a shape visually recognized varies by the deformation of the deformation member accompanying expansion and contraction of the expansion member while the expansion member is arranged in a puncture site.SELECTED DRAWING: Figure 5

Description

The present invention relates to a hemostatic device.

Conventionally, there has been known a technique of introducing various medical long bodies (for example, catheters) into a blood vessel through a puncture site formed on a limb such as a patient's hand or arm to treat or treat the lesion site. ing. When such a procedure is performed, the surgeon or the like stops bleeding at the puncture site when removing the medical long body from the puncture site.

As a hemostatic device used to stop bleeding at the puncture site, a band for wrapping around the limb and an expansion member such as a balloon that is connected to the band and expands by injecting fluid to press the puncture site. , Are proposed (see Patent Document 1).

Japanese Unexamined Patent Publication No. 2010-131296

In the hemostatic method using the hemostatic device of Patent Document 1, when expanding the balloon, the operator or the like adjusts the amount of fluid to be injected into the balloon according to the hemostatic state of the puncture site of the patient. As a result, the surgeon or the like adjusts the compression force applied to the puncture site by the balloon. At this time, the operator or the like injects a predetermined amount of fluid according to the expansion amount of the balloon into the balloon so that the balloon can be expanded by a desired expansion amount.

However, the compressive force exerted by the balloon on the puncture site also depends on the holding force that holds the balloon in the patient's limb during hemostasis. For example, when comparing the case where the hemostatic device band is tightly wrapped around the patient's limb and the case where it is weakly wrapped, even if the amount of fluid injected into the balloon is the same, the balloon is applied to the puncture site. There is a difference in the magnitude of the compressive force applied.

Therefore, even when a predetermined amount of fluid corresponding to the desired compression force is injected into the balloon, the surgeon or the like may not actually be able to apply the desired compression force to the puncture site. If the compression force applied to the puncture site by the balloon becomes excessively large, the blood vessel may be overpressurized and the blood vessel may be occluded. On the other hand, if the pressure applied by the balloon to the puncture site becomes excessively small, hemostasis may not be sufficiently performed.

In view of the above problems, the present invention provides a hemostatic device capable of visually grasping the expanded state of the expansion member and easily confirming a guideline of the compression force applied to the puncture site by the expansion member. The purpose is to do.

A hemostatic device that achieves the above object has an expansion member arranged at a site of the limb to be hemostatic, and a deformable member fixed to the expansion member and deformable with expansion and contraction of the expansion member. The deformable member has a first surface facing the expansion member, a second surface facing the first surface, and a side wall located between the first surface and the second surface. The side wall includes a side wall marker portion located between the first surface and the second surface, and the side wall marker portion is a state in which the expansion member is arranged at a site to be hemostasis. The shape to be visually recognized changes due to the deformation of the deforming member due to the expansion and contraction of the member.

According to the hemostatic device of the present invention, the surgeon or the like visually recognizes a change in the shape of the side wall marker portion of the deformed member when the expansion member is expanded and contracted while the expansion member is arranged at the puncture site. It is possible to grasp the expanded state of the expansion member. Thereby, the surgeon or the like can easily confirm the standard of the pressing force applied to the puncture site by the expansion member when the puncture site is stopped by the hemostatic device.

It is a figure which shows the hemostatic device which concerns on 1st Embodiment, and is the top view seen from the outer surface side of a band body. It is a figure which shows the hemostatic device which concerns on 1st Embodiment, and is the top view seen from the inner surface side of a band body. It is a top view which shows the part of the hemostatic device seen from the inner surface side of a band body enlarged. It is sectional drawing of the hemostatic device along the arrow 4A-4A shown in FIG. It is a perspective view of a deforming member. It is a figure which shows the use example of the hemostatic device which concerns on 1st Embodiment simply. It is a figure which shows the use example of the hemostatic device which concerns on 1st Embodiment simply. It is a figure which shows the use example of the hemostatic device which concerns on 1st Embodiment simply. It is a figure which shows the side wall marker part in the state before the expansion member expands. It is a perspective view which shows the deformed member in the state before the expansion member expands. It is a figure which shows the side wall marker part in the state which the expansion member expanded. It is a perspective view which shows the deformed member in the expanded state of the expansion member. It is a figure which shows the side wall marker part which concerns on the modification 1, and is the figure which shows the state before the expansion member expands. It is a figure which shows the side wall marker part which concerns on the modification 1, and is the figure which shows the state when the expansion member is expanded. It is a figure which shows the side wall marker part which concerns on the modification 2, and is the figure which shows the state before the expansion member expands. It is a figure which shows the side wall marker part which concerns on the modification 2, and is the figure which shows the state when the expansion member is expanded. It is a perspective view of the deforming member which concerns on modification 1. FIG. It is a perspective view of the deforming member which concerns on modification 2. FIG. It is a perspective view of the deforming member which concerns on modification 3. It is a perspective view of the deformation member which concerns on the modification 4. It is a figure which shows the use example of the hemostatic device which concerns on 2nd Embodiment simply.

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

(First Embodiment)
1 to 5 are views for explaining the configuration of each part of the hemostatic device 100 according to the first embodiment, and FIGS. 6 to 8 are views for explaining a usage example of the hemostatic device 100, FIGS. 9 to 9 to FIG. FIG. 12 is a diagram for explaining a deforming member 140 of the hemostatic device 100.

<Hemostatic device>
As shown in FIGS. 6 to 8, for example, the hemostatic device 100 is a palmar artery (deep palm artery) running on the instep Hb side of the hand (for example, the left hand) H located on the finger side of the patient's forearm A. The puncture site p (corresponding to the "site to stop bleeding") formed on the radial artery side (for example, the artery around the anatomical snuff box or the distal radial artery running on the fingertip side of the snuff box). ) Is a medical device that can be used to stop bleeding at the puncture site p when the sheath tube 410 of the introducer 400 is removed. The anatomical snuff box is a depression of the hand located on the radial side of the forearm A when the patient spreads the thumb f1 of the hand H.

In this embodiment, the hand H is illustrated as a limb to which the hemostatic device 100 is attached. However, the limb to which the hemostatic device is attached may be, for example, the forearm A of the patient, as described in the embodiments described later (see FIG. 21).

The hemostatic device 100 is outlined with reference to FIGS. 1 to 4 and 8, and is fixed to the expansion member 110 arranged at the puncture site p of the hand H and the expansion member 110 to expand and contract the expansion member 110. It has a deformable member 140 that can be deformed accordingly.

As shown in FIGS. 1, 2, 6 to 8, the hemostatic device 100 further has a band 210 for fixing the expansion member 110 to the hand H.

FIG. 1 shows a plan view of the hemostatic device 100 seen from the outer surface side of the band 210, and FIG. 2 shows a plan view of the hemostatic device 100 seen from the inner surface side of the band 210. The inner surface of the band 210 is the side surface that is arranged so as to face the skin surface layer of the patient's hand H when the hemostatic device 100 is attached to the patient's hand H. The outer surface of the band 210 is the surface opposite to the inner surface.

As shown in FIGS. 1, 2, and 3, the band 210 has a first arm portion 250 extending in the first direction from the position where the expansion member 110 is arranged in the band 210, and a second arm portion 250 different from the first direction. A second arm portion 260 extending in a direction and a third arm portion 270 extending in a direction different from the first direction and the second direction are provided.

As shown in FIGS. 1 and 4, the expansion member 110 is arranged on the main body 230 included in the band 210.

Each arm portion 250, 260, 270 is composed of a strip-shaped member having a predetermined width and length. In the present embodiment, the band 210 has a plurality of arm portions 250, 260, 270, each extending in a different direction with respect to the main body portion 230. However, as shown in the embodiment (see FIG. 21) described later, the specific shape and structure of the band can be changed according to the product specifications of the hemostatic device and the like. Further, even when the band has a plurality of arm portions as in the present embodiment, the number of arm portions, the extending direction, the specific shape, and the like are not particularly limited.

As shown in FIG. 3, the first arm portion 250 is arranged at a position where it overlaps with the slit portion 147 of the deforming member 140 (the position where the extending direction of the first arm portion 250 and the slit portion 147 overlap in FIG. 3). There is. The width W1 of the slit portion 147 of the deformable member 140 is formed to be larger than the width W2 of the first arm portion 250. The slit portion 147 will be described later.

As shown in FIGS. 1 and 2, a plurality of fixing members 281, 282, 283, 284, and 285 for fixing the expansion member 110 to the hand H are attached to the arm portions 250, 260, and 270 of the band 210. It is arranged.

As shown in FIG. 1, the first fixing member 281 is arranged on an outer surface near one end of the second arm portion 260 (the end located on the opposite side of the other end located on the main body 230 side). .. The second fixing member 282 is arranged on the outer surface of the intermediate portion located between one end portion and the other end portion of the second arm portion 260. The third fixing member 283 is arranged on the outer surface of the third arm portion 270.

As shown in FIG. 2, the fourth fixing member 284 is arranged on the inner surface near one end of the first arm portion 250 (the end located on the opposite side of the other end located on the main body 230 side). ..

As shown in FIG. 2, the fifth fixing member 285 is arranged on the inner surface of the main body portion 230 and each arm portion 250, 260, 270.

Each fixing member 281, 282, 283, 284, 285 can be composed of, for example, a hook-and-loop fastener. In the present embodiment, the first fixing member 281, the third fixing member 283, and the fourth fixing member 284 are configured on the male side of the hook-and-loop fastener. Further, in the present embodiment, the second fixing member 282 and the fifth fixing member 285 are configured on the female side of the hook-and-loop fastener.

An example of the mounting procedure of the hemostatic device 100 using the fixing members 281, 282, 283, 284, 285 will be described.

When the hemostatic device 100 is attached to the patient's hand H, the surgeon or the like arranges the main body 230 to which the expansion member 110 is connected to the puncture site p of the patient's hand H, as shown in FIG. As shown in FIG. 7, the surgeon or the like winds the second arm portion 260 in a left-handed manner along the outer circumference of the patient's hand H. Then, the surgeon or the like winds the second arm portion 260 from the back Hb side of the hand to the palm side of the hand, and attaches the fifth fixing member 285 arranged on the inner surface of the second arm portion 260 to the outer surface of the third arm portion 270. It is brought into contact with the arranged third fixing member 283. In this way, the operator or the like can connect the second arm portion 260 and the third arm portion 270.

As shown in FIG. 8, the surgeon or the like removes a surplus portion (near one end of the second arm portion 260 in which the first fixing member 281 is arranged) that was not wound around the hand H in the second arm portion 260. The first fixing member 281 can be connected to the second fixing member 282 by winding the hand H so as to fold back to the palm side.

As shown in FIG. 8, the surgeon or the like winds the first arm portion 250 around the palm side of the hand H through the interdigital portion fb between the thumb f1 and the index finger f2. Thereby, the operator or the like can connect the fourth fixing member 284 arranged on the inner surface of the first arm portion 250 to the second fixing member 282 arranged on the outer surface of the second arm portion 260. In this way, the operator or the like can connect the first arm portion 250 and the second arm portion 260.

The surgeon or the like can firmly fix the hemostatic device 100 to the patient's hand H by connecting the arm portions 250, 260, 270 to each other on the patient's hand H by the procedure described above. In particular, since the hemostatic device 100 has a first arm portion 250 arranged in the interfinger portion fb between the two fingers f1 and f2, the holding force of the hemostatic device 100 with respect to the hand H can be effectively enhanced. can.

The structure of each fixing member 281, 282, 283, 284, 285 is not particularly limited as long as it is possible to maintain the state in which the hemostatic device 100 is attached to the patient's hand H. Each fixing member may be composed of, for example, a surface fastener other than the surface fastener. Further, even when each fixing member is composed of a hook-and-loop fastener as in the present embodiment, the female side and the male side can be arbitrarily replaced. Further, it is also possible to appropriately change the position or the like of arrangement in each arm portion.

As shown in FIG. 4, an expansion member 110 is connected to the inner surface of the main body 230. As will be described later, in the present embodiment, the expansion member 110 is composed of a first expansion unit 120 and a second expansion unit 130. Note that FIG. 4 shows a partial cross-sectional view of the hemostatic device 100 when the expansion member 110 is expanded.

As shown in FIG. 4, the base end portion of the main body portion 230 (the end portion on the side opposite to the tip portion side on which the first arm portion 250 is arranged and the left end portion in FIG. 4) is the first expansion portion. It is fixed at 120. The tip of the main body 230 is connected to the other end of the first arm 250 (the end located on the expansion member 110 side) via a predetermined support member 240. The other end of the first arm portion 250 is connected to the support member 240 and the second expansion portion 130.

As shown in FIGS. 1 and 4, a window portion 231 is provided at a substantially central position in the surface direction of the main body portion 230.

The window portion 231 can be formed of, for example, a through hole formed in the main body portion 230. By looking into the window portion 231 from the outer surface side of the main body portion 230, the operator or the like can visually recognize the marker portion 170 arranged in the second expansion portion 130 and the side wall marker portion 150 of the deforming member 140.

If the side wall marker portion 150 of the deforming member 140 can be visually recognized when the operator or the like looks into the window portion 231 from the outer surface side of the main body portion 230, the window portion 231 has a specific position. The outer shape, structure, etc. are not particularly limited. The window portion 231 may be made of, for example, a transparent, translucent, colored transparent member or the like. Further, the support member 240 is, for example, a transparent, translucent, colored transparent member or the like so that the side wall marker portion 150 of the deformable member 140 can be visually visually recognized via the window portion 231 and the support member 240. It is preferable to configure it.

<Expansion member>
As shown in FIGS. 2, 3 and 4, an expansion member 110 is arranged on the inner surface side of the main body 230. The expansion member 110 of the present embodiment has a first expansion portion 120 that is expanded by injecting a fluid, and a second expansion portion 130 that has a smaller outer shape than the first expansion portion 120 and is deformable.

As shown in FIG. 4, the first expansion portion 120 has a space portion 121 into which a fluid can be injected, and a communication hole 123 formed at a position facing the second expansion portion 130.

As shown in FIG. 4, the second expansion portion 130 has a space portion 131 into which a fluid can be injected, and a communication hole 133 that communicates with the communication hole 123 of the first expansion portion 120.

The space portion 121 of the first expansion portion 120 and the space portion 131 of the second expansion portion 130 communicate with each other through the communication holes 123 and 133. The first expansion unit 120 and the second expansion unit 130 are connected to each other around the communication holes 123 and 133. The first expansion portion 120 and the second expansion portion 130 can be connected by, for example, fusion or adhesive.

As shown in FIG. 4, the second expansion portion 130 is located on the first arm portion 250 side (the tip end side of the main body portion 230).

The first expansion portion 120 and the second expansion portion 130 are, for example, two sheet-shaped members in a state where the space portions 121 and 131 are formed between the two sheet-shaped members formed in a substantially rectangular shape. It can be formed by joining the edges. The specific configurations of the expansion portions 120 and 130 are not particularly limited as long as they can be configured to expand and contract with the injection and discharge of the fluid.

Each of the expansion portions 120 and 130 can form, for example, a substantially rectangular outer shape in a plan view. However, the specific outer shape of each of the expansion portions 120 and 130 is not particularly limited.

The space portion 121 of the first expansion portion 120 communicates with the lumen of the tube 303 included in the injection portion 300 (see FIGS. 1 and 2) described later. The tube 303 may be connected to the space portion 131 of the second expansion portion 130.

As shown in FIG. 4, the operator or the like injects a fluid (for example, air) into the space 121 of the first expansion 120 through the tube 303, so that the first expansion 120 and the second expansion 130 Can be extended.

The surgeon or the like can apply a compressive force to the puncture site p by expanding the dilation portions 120 and 130 while the hemostatic device 100 is attached to the patient's hand H. Further, when the operator or the like expands each of the expansion portions 120 and 130, the second expansion portion 130 applies a force F (see FIG. 4) in an oblique direction toward the central portion side of the first expansion portion 120. .. The first expansion portion 120 receives the compression force from the second expansion portion 130 in a state where the first expansion portion 120 applies a compression force to the puncture site p, so that the center of gravity of the first expansion portion 120 is centered. Prevents inadvertent displacement. Therefore, the surgeon or the like can prevent the first expansion portion 120 from being displaced from the puncture site p. As a result, the operator or the like can maintain a state in which the pressing force is stably applied to the puncture site p.

The expansion member 110 may be composed of only one expansion portion (first expansion portion 120). Further, when the expansion member 110 is composed of another member such as the first expansion portion 120 and the second expansion portion 130 that assists the compression as in the present embodiment, the other member that assists the compression is, for example, an expansion. It is also possible to use a member other than the deformable balloon.

As shown in FIGS. 3, 4, and 5, a marker portion 170 for aligning the expansion member 110 with respect to the puncture site p is arranged in the second expansion portion 130.

The marker portion 170 can be provided, for example, so as to be located at the center of the window portion 231 in a state where the expansion member 110 is contracted. The central portion of the window portion 231 is, for example, a central portion in a plan view when the expansion member 110 shown in FIG. 3 is not expanded. In the present embodiment, the central portion of the window portion 231 is substantially the same position as the central portion of the first expansion portion 120.

The marker portion 170 is arranged at the base end portion (the left end portion in FIG. 4) of the second expansion portion 130. Further, the marker portion 170 is arranged on the outer surface of the surface of the second expansion portion 130 opposite to the surface of the first expansion portion 120.

The marker portion 170 is, for example, an inner surface of a surface (inner surface) 120a on the side of the first expansion portion 120 facing the deforming member 140, and a surface (outer surface) opposite to the inner surface of the first expansion portion 120. ) Can be arranged on the inner surface or the outer surface thereof, or on the inner surface or the outer surface of the support member 240.

The marker portion 170 is formed of a rectangular marker in which the entire marker portion 170 is colored. However, the marker portion 170 may be composed of, for example, a transparent central portion and a colored linear frame portion surrounding the central portion. The specific shape and color of the marker portion 170, the method of forming the hemostatic device 100 on each portion, and the like are not particularly limited.

<Injection part>
As shown in FIGS. 1 and 2, the hemostatic device 100 has an injection unit 300 for injecting a fluid into the expansion member 110.

The injection portion 300 includes a connector 301 having a built-in check valve (not shown), a flexible bag portion 302 having a space formed inside, and a space portion 121 of the bag portion 302 and the first expansion portion 120. It has a tube 303 for communicating with the tube 303.

While the check valve of the connector 301 is closed, the communication between the inside of the connector 301 and the space of the bag portion 302 is cut off. When expanding the expansion portions 120 and 130, the surgeon or the like inserts the tip cylinder portion of a syringe (not shown) into the connector 301 to open the check valve. The surgeon or the like can inject the air in the syringe into the space 121 of the first expansion portion 120 by pushing the pusher of the syringe with the check valve of the connector 301 open.

The surgeon or the like can expand the first expansion portion 120 by injecting air into the space portion 121 of the first expansion portion 120. Further, the air injected into the space portion 121 of the first expansion portion 120 by the operator or the like flows into the space portion 131 of the second expansion portion 130 through the communication holes 123 and 133. As a result, the operator or the like can expand the second expansion unit 130. When the operator or the like expands the expansion portions 120 and 130, the bag portion 302 communicating with the first expansion portion 120 via the tube 303 expands. The operator or the like can confirm that the expansion portions 120 and 130 have expanded by visually confirming that the bag portion 302 expands.

When contracting the expansion portions 120 and 130, the surgeon or the like inserts the tip cylinder portion of the syringe into the connector 301 and pulls the pusher of the syringe. The surgeon or the like can move air from the expansion portions 120 and 130 to the syringe by performing the above operation. When the operator or the like moves air from the expansion portions 120 and 130 to the syringe, the bag portion 302 contracts.

For example, the bag portion 302 can be provided with an arrow-shaped marker indicating the direction in which the syringe is inserted into the connector 301.

<Deformation member>
FIG. 5 shows the deformed member 140 in the state before the expansion member 110 is expanded. FIG. 5 is a perspective view of the deforming member 140 as seen from the first surface 141 side. The deformable member 140 shown in FIG. 5 shows a natural state in which no external force is applied to the deformable member 140.

9 and 10 show the deformed member 140 in a state before the expansion member 110 is expanded. FIG. 9 is a front view of the inner wall 143a of the deformable member 140, and FIG. 10 is a perspective view of the main body 230 as viewed from the outside. 11 and 12 show the deformed member 140 when the expansion member 110 is expanded. FIG. 11 is a front view of the inner wall 143a of the deformable member 140, and FIG. 12 is a perspective view of the main body 230 as viewed from the outside.

As shown in FIG. 5, the deformable member 140 includes a first surface 141 facing the expansion member 110 (first expansion portion 120), a second surface 142 facing the first surface 141, and a first surface 141 and a first surface. It has a side wall 143 located between the two surfaces 142.

The side wall 143 includes a side wall marker portion 150 located between the first surface 141 and the second surface 142.

As shown in FIGS. 9 to 12, the side wall marker portion 150 has a shape that can be visually recognized due to deformation of the deforming member 140 due to expansion and contraction of the expansion member 110 in a state where the expansion member 110 is arranged at the puncture site p. It is configured to change.

The deformable member 140 can be composed of, for example, a porous member 160 containing bubbles 161 (see FIG. 4) that are deformed as the expansion member 110 expands and contracts inside the deformation member 140. As the porous member 160 constituting the deformable member 140, for example, a natural sponge, a synthetic sponge (for example, urethane sponge), a gel material, or the like can be used.

The deformable member 140 is, for example, to the extent that the deformable member 140 is deformed and the shape of the side wall marker portion 150 does not change in the state before the band 210 is wound around the hand H and fixed and the expansion member 110 is expanded. It is preferable to have hardness. By configuring the deformable member 140 in this way, the shape of the side wall marker portion 150 changes with the deformation of the deformable member 140 in the state before the hemostatic device 100 is attached to the hand H and the expansion of the expansion member 110 is started. It is possible to prevent this from happening. As a result, it becomes possible for the operator or the like to clearly grasp the change in the shape of the side wall marker portion 150 before and after the expansion member 110 is expanded and deformed. Therefore, the surgeon or the like can more easily confirm the expansion amount of the expansion member 110 on the side wall marker portion 150.

The material of the deformable member 140 is not particularly limited as long as the shape of the side wall marker portion 150 can be changed as the expansion member 110 expands and contracts.

As shown in FIG. 4, the first surface 141 of the deformable member 140 is connected to the outer surface of the inner surface 120a of the first expansion portion 120. The second surface 142 of the deforming member 140 is arranged so as to come into contact with the skin surface layer of the hand H when the hemostatic device 100 is placed on the hand H.

As shown in FIG. 5, the deformable member 140 has a substantially C-shaped outer shape.

As shown in FIGS. 5, 9, and 11, the side wall marker portion 150 includes an upper region 151 located on the first surface 141 side and a lower region 152 located on the second surface 142 side of the upper region 151. Have.

As shown in FIG. 5, the side wall marker portion 150 further includes an intermediate portion 153 connecting the upper region 151 and the lower region 152. The intermediate portion 153 is inclined with respect to the perpendicular line H1 connecting the first surface 141 and the second surface 142.

In the present embodiment, the upper region 151 is a point-shaped marker located in the vicinity of the first surface 141. Further, the lower region 152 is a dot-shaped marker located in the vicinity of the second surface 142. Further, the intermediate portion 153 is a linear marker connecting the upper region 151 and the lower region 152.

The side wall marker portion 150 further includes a plain portion 154 surrounded by an intermediate portion 153.

The upper region 151, the lower region 152, and the intermediate portion 153 are regions (parts) with a predetermined color. The plain portion 154 is an uncolored portion of the deformable member 140. When the side wall marker portion 150 is visually observed, the operator or the like can visually distinguish the upper region 151, the lower region 152, the intermediate portion 153, and the plain portion 154.

The color of the portion constituting the upper region 151, the lower region 152, and the intermediate portion 153 is, for example, green or blue, which can be easily distinguished from blood. However, the color is not particularly limited as long as the operator or the like can visually confirm the upper region 151, the lower region 152, and the intermediate portion 153. Further, the thickness of the linear marker forming the intermediate portion 153, the angle of inclination with respect to the perpendicular line H1, and the like are not particularly limited.

As shown in FIGS. 5, 9, and 11, in the side wall marker portion 150 of the present embodiment, the upper region 151, the lower region 152, and the intermediate portion 153 are arranged at equal intervals in the circumferential direction of the inner wall 143a. There is. In the intermediate portion 153, adjacent intermediate portions 153 intersect each other between the first surface 141 and the second surface 142. The plain portion 154, which is an area surrounded by the intersecting intermediate portions 153, has a rhombic shape.

Similar to the plain portion 154, a substantially triangular plain portion that is not colored is formed in the vicinity of the first surface 141 and the vicinity of the second surface 142.

As shown in FIG. 5, the deforming member 140 has a through hole 145 connecting the first surface 141 and the second surface 142.

The side wall 143 has an inner wall 143a located on the through hole 145 side and an outer wall 143b located on the opposite side of the inner wall 143a (located outside the deformable member 140).

The side wall marker portion 150 is arranged on the inner wall 143a of the deforming member 140.

As shown in FIG. 3, the deformable member 140 is fixed to the expansion member 110 with the through hole 145 arranged at the center of the expansion member 110. The central portion of the expansion member 110 (the central portion of the first expansion portion 120) is substantially the same as the position where the marker portion 170 is arranged in the present embodiment. Therefore, as shown in FIG. 5, the deformable member 140 is fixed to the expansion member 110 at a position where the inner wall 143a surrounds the marker portion 170.

As shown in FIG. 5, the side wall marker portion 150 is formed over the entire range of the inner wall 143a excluding the portion where the slit portion 147 of the deforming member 140 is formed. However, the side wall marker portion 150 may be formed on at least a part of the side wall 143. For example, the side wall marker portion 150 may be further formed on the first surface 141, the second surface 142, and the outer wall 143b.

As shown in FIG. 5, the deformable member 140 has a slit portion 147 extending in the radial direction from the central portion side of the deformable member 140. As described above, the slit portion 147 is arranged at a position overlapping the first arm portion 250 of the band 210. That is, the first arm portion 250 is arranged at a position overlapping the slit portion 147 in the thickness direction of the deforming member 140 (direction from the first surface 141 to the second surface 142). Further, the width W1 of the slit portion 147 is formed to be larger than the width W2 of the first arm portion 250.

A change in the shape of the side wall marker portion 150 of the deforming member 140 will be described with reference to FIGS. 9 to 12.

9 and 10 show a state in which the hemostatic device 100 is attached to the patient's hand H and the expansion member 110 (first expansion portion 120 and second expansion portion 130) is not expanded.

In the state where the expansion member 110 is not expanded, the angle formed by the intermediate portion 153 on the upper region 151 side with the perpendicular line H1 of the deformation member 140 is set to θ1. Further, the angle formed by the intermediate portion 153 on the lower region 152 side with the perpendicular line H1 of the deforming member 140 is set to θ2. Further, the distance between the upper region 151 and the lower region 152 is L1. L1 is substantially the same as the thickness of the deformable member 140.

When the hemostatic device 100 is attached to the patient's hand H and the hemostatic device 100 is fixed by each arm portion 250, 260, 270, the deforming member 140 is attached to the hand H by each arm portion 250, 260, 270 and the main body portion 230. It is pressed against the surface of the skin. Therefore, when the operator or the like expands the expansion member 110 while the hemostatic device 100 is attached to the patient's hand H, the shape of the side wall marker portion 150 that is visually recognized changes as shown in FIGS. 11 and 12.

When the expansion member 110 expands in a state where the movement of the hand H in the direction away from the skin surface layer is suppressed by the arm portions 250, 260, 270 and the main body portion 230, the deformable member 140 with respect to the skin surface layer of the hand H. When pressed, the first surface 141 and the second surface 142 contract so as to be relatively close to each other. As a result, as shown in FIG. 11, the distance L1 between the upper region 151 and the lower region 152 becomes smaller. Further, the angle θ1 at which the intermediate portion 153 is inclined with respect to the perpendicular line H1 of the deforming member 140 on the upper region 151 side and the angle θ2 at which the intermediate portion 153 is inclined with respect to the perpendicular line H1 of the deforming member 140 on the lower region 152 side are small. Become. Therefore, the side wall marker portion 150 changes from the shape before the expansion member 110 shown in FIGS. 9 and 10 to the shape shown in FIGS. 11 and 12.

The surgeon or the like looks into the window portion 231 provided in the main body portion 230 of the hemostatic apparatus 100 while performing the hemostatic apparatus using the hemostatic instrument 100. The operator or the like can visually recognize the change in the shape of the side wall marker portion 150 by looking into the window portion 231. The operator or the like can grasp the expanded state of the expansion member 110 by visually recognizing the change in the shape of the side wall marker portion 150. The arrow E shown in FIGS. 10 and 12 illustrates the direction of the line of sight when the operator or the like looks into the window portion 231.

The shape of the side wall marker portion 150 continuously changes according to the amount of expansion of the expansion member 110. That is, the distance L1, the angles θ1 and θ2 change continuously according to the change in the expansion amount of the expansion member 110. Therefore, the surgeon or the like visually recognizes the shape of the side wall marker portion 150 that continuously changes according to the amount of fluid sent to the expansion member 110 using the injection portion 300 and the amount of fluid discharged from the expansion member 110. Therefore, the expanded state of the expansion member 110 can be easily grasped.

<Example of using hemostatic device>
Next, an example of using the hemostatic device 100 will be described with reference to FIGS. 6 to 9. The method of using the hemostatic device 100 of the present invention is not limited to the contents described below.

As shown in FIG. 6, the surgeon or the like arranges the main body 230 and the expansion member 110 of the hemostatic device 100 to overlap the puncture site p with the sheath tube 410 of the introducer 400 inserted into the puncture site p. do.

The operator or the like arranges the marker portion 170 at the puncture site p. In the hemostatic device 100 of the present embodiment, the inner wall 143a of the deforming member 140 is arranged so as to surround the marker portion 170 (see FIG. 5). Therefore, the surgeon or the like can arrange the inner wall 143a so as to surround the periphery of the puncture site p by arranging the marker portion 170 at the puncture site p.

The surgeon or the like arranges the first arm portion 250 in the interdigital portion fb between the thumb f1 and the index finger f2. In the present embodiment, the slit portion 147 of the deforming member 140 is provided at a position overlapping the first arm portion 250 in the thickness direction of the deforming member 140. Therefore, the surgeon or the like arranges the sheath tube 410 of the introducer 400 led out to the first arm portion 250 side in the slit portion 147 of the deforming member 140 so that the sheath tube 410 interferes with the deforming member 140. While preventing the deformation member 140, the deformable member 140 can be arranged at a position surrounding the puncture site p.

As shown in FIGS. 7 and 8, the operator or the like attaches the hemostatic device 100 to the patient's hand H by fixing each arm portion 250, 260, 270 to the hand H. After attaching the hemostatic device 100 to the patient's hand H, the surgeon or the like removes the sheath tube 410 of the introducer 400 from the puncture site p.

As described above, the width W1 of the slit portion 147 of the deforming member 140 is larger than the width W2 of the first arm portion 250 (see FIG. 3). Therefore, when the sheath tube 410 of the introducer 400 is removed from the puncture site p, it is possible to prevent the sheath tube 410 from coming into contact with the first arm portion 250. Therefore, the surgeon or the like can easily remove the sheath tube 410 from the puncture site p.

Further, the deforming member 140 is provided with a slit portion 147. Therefore, if blood leaks from the puncture site p during hemostasis using the hemostasis device 100, the blood is transferred from the inside of the deforming member 140 (the region surrounded by the inner wall 143a) through the slit portion 147. It can be discharged to the outside of 140. Therefore, the hemostatic device 100 can prevent the blood from staying inside the deformable member 140 and the visibility of the side wall marker portion 150 from being lowered even when the blood leaks from the puncture site p.

The surgeon or the like removes the sheath tube 410 from the puncture site p with the hemostatic device 100 attached to the patient's hand H, and then expands the expansion member 110. The surgeon or the like applies a pressing force to the puncture site p by expanding the expansion member 110. The surgeon or the like can easily grasp the expanded state of the expansion member 110 by checking the shape of the side wall marker portion 150 while hemostasis is performed at the puncture site p. The operator or the like appropriately performs an operation of adjusting the expansion amount of the expansion member 110 to a desired size while confirming the hemostasis state of the puncture site p.

The specific timing for starting the expansion of the expansion member 110 is not particularly limited. For example, expansion of the expansion member 110 may be started before the sheath tube 410 is removed from the puncture site p.

As described above, the hemostatic device 100 according to the present embodiment has an expansion member 110 arranged at the puncture site p of the hand H and a deformable member 140 fixed to the expansion member 110 and deformable as the expansion member 110 expands and contracts. And have. The deformable member 140 has a first surface 141 facing the expansion member 110, a second surface 142 facing the first surface 141, and a side wall 143 located between the first surface 141 and the second surface 142. Have. The side wall 143 includes a side wall marker portion 150 located between the first surface 141 and the second surface 142. The side wall marker portion 150 is configured such that the shape to be visually recognized changes due to the deformation of the deforming member 140 due to the expansion and contraction of the expansion member 110 in a state where the expansion member 110 is arranged at the puncture site p.

According to the hemostatic device 100 configured as described above, when the operator or the like expands and contracts the expansion member 110 with the expansion member 110 arranged at the puncture site p, the side wall marker portion 150 of the deformation member 140 By visually recognizing the shape, the expanded state of the expansion member 110 can be easily grasped. As a result, the surgeon or the like can easily confirm the guideline of the pressing force applied to the puncture site p by the expansion member 110 when the puncture site p is stopped by the hemostatic device 100.

Further, the deformable member 140 can be composed of a porous member 160 including bubbles 161 that are deformed as the expansion member 110 expands and contracts inside the deformable member 140.

According to the hemostatic device 100 configured as described above, the shape of the side wall marker portion 150 can be easily deformed by expanding and contracting the bubbles 161 of the porous member 160 as the expansion member 110 expands and contracts. Can be done. Therefore, the operator or the like can more easily visually recognize the change in the shape of the side wall marker portion 150.

Further, the side wall marker portion 150 has an upper region 151 located on the first surface 141 side and a lower region 152 located on the second surface 142 side of the upper region 151. In the side wall marker portion 150, the distance L1 between the upper region 151 and the lower region 152 changes due to the deformation of the deforming member 140 due to the expansion and contraction of the expansion member 110 in a state where the expansion member 110 is arranged at the puncture site p. do.

According to the hemostatic device 100 configured as described above, the operator or the like visually recognizes the change in the distance L1 between the upper region 151 and the lower region 152 before and after expanding and contracting the expansion member 110. The expanded state of the expansion member 110 can be easily grasped.

Further, the side wall marker portion 150 has an intermediate portion 153 connecting the upper region 151 and the lower region 152. The intermediate portion 153 is inclined with respect to the perpendicular line H1 connecting the first surface 141 and the second surface 142.

According to the hemostatic device 100 configured as described above, the operator or the like visually recognizes changes in angles θ1 and θ2 in which the intermediate portion 153 is inclined with respect to the perpendicular line H1 before and after expanding and contracting the expansion member 110. As a result, the expanded state of the expansion member 110 can be easily grasped.

The deformable member 140 has a through hole 145 that connects the first surface 141 and the second surface 142. The side wall 143 has an inner wall 143a located on the through hole 145 side and an outer wall 143b located on the opposite side of the inner wall 143a. The side wall marker portion 150 is arranged on the inner wall 143a. The deformable member 140 is fixed to the expansion member 110 with the through hole 145 arranged at the center of the expansion member 110.

According to the hemostatic device 100 configured as described above, the operator or the like can easily visually recognize the side wall marker portion 150 by looking into the through hole 145 while the hemostatic device 100 is attached to the patient's hand H. can do. Further, since the through hole 145 is arranged in the central portion of the expansion member 110, it is possible to prevent the deforming member 140 from being arranged so as to overlap the puncture site p with the hemostatic device 100 attached to the patient's hand H. Therefore, the surgeon or the like can prevent the deforming member 140 from coming into contact with the puncture site p while hemostasis is performed using the hemostasis device 100.

Further, the expansion member 110 has a marker portion 170 for aligning the expansion member 110 with the puncture site p. The deformable member 140 is fixed to the expansion member 110 at a position where the inner wall 143a surrounds the marker portion 170.

According to the hemostatic device 100 configured as described above, when the operator or the like arranges the expansion member 110 at the puncture site p, the expansion member 110 is arranged at the puncture site p with reference to the marker portion 170. In the work, the deformable member 140 can be arranged so as to surround the puncture site p. Therefore, the operator or the like can arrange the deforming member 140 at an appropriate position with a simple operation.

Further, the deformable member 140 has a slit portion 147 extending in the radial direction from the central portion side of the deformable member 140.

When the hemostatic device 100 configured as described above leaks blood from the puncture site p while the hemostatic device 100 is performing hemostasis, the blood is transferred from the inside of the deforming member 140 through the slit portion 147 to the deforming member 140. Can be discharged to the outside of. Therefore, even when the hemostatic device 100 leaks from the puncture site p, it is possible to prevent blood from staying inside the deforming member 140 and reducing the visibility of the side wall marker portion 150.

In addition, the hemostatic device 100 has a band 210 for fixing the expansion member 110 to the hand H. The band 210 includes a first arm portion 250 extending in the first direction from the position where the expansion member 110 is arranged in the band 210, and a second arm portion 260 extending from the expansion member 110 in a second direction different from the first direction. A third arm portion 270 extending from the expansion member 110 in a direction different from the first direction and the second direction is provided. The first arm portion 250 is arranged at a position overlapping the position where the slit portion 147 is arranged in the thickness direction of the deforming member 140.

According to the hemostatic device 100 configured as described above, by using each arm portion 250, 260, 270, the expansion member 110 is arranged in the puncture site p formed on the patient's hand H and is expanded. The member 110 can be firmly fixed to the patient's hand. Further, when the hemostatic device 100 is attached to the patient's hand H, the surgeon or the like arranges the sheath tube 410 of the introducer 400 in the slit portion 147 to prevent the deforming member 140 and the sheath tube 410 from interfering with each other. can.

Further, the width W1 of the slit portion 147 is larger than the width W2 of the first arm portion 250.

According to the hemostatic device 100 configured as described above, when the sheath tube 410 of the introducer 400 is removed from the puncture site p with the hemostatic device 100 attached to the patient's hand H, the sheath tube 410 is the first. It is possible to prevent contact with the arm portion 250. Therefore, the surgeon or the like can easily remove the sheath tube 410 from the puncture site p.

Next, each modification of the above-described embodiment will be described. In the description of the modified example, the description of the content that overlaps with the content already described in the above-described embodiment will be omitted. In addition, the contents not particularly explained in the description of the modified example can be the same as those in the above-described embodiment.

<Modification example 1 of the side wall marker portion>
13 and 14 show a modification 1 of the side wall marker portion 150A. FIG. 13 shows the deformed member 140 in a state before the expansion member 110 is expanded. FIG. 14 shows a deforming member 140 in a state where the expansion member 110 is expanded.

As shown in FIG. 13, the side wall marker portion 150A has an upper region 151 and a lower region 152.

The side wall marker portion 150A has an intermediate portion 153 connecting the upper region 151 and the lower region 152. The plain portion 154 surrounded by the upper region 151, the lower region 152, and the intermediate portion 153 has a triangular shape.

In the side wall marker portion 150A of this modification, the upper region 151 and the lower region 152 are not located on the perpendicular line H1 connecting the first surface 141 and the second surface 142.

As shown in FIG. 14, when the expansion member 110 is expanded, the distance L1 between the first surface 141 and the second surface 142 becomes smaller than before the expansion member 110 is expanded. Further, the angle θ1 at which the intermediate portion 153 is inclined with respect to the perpendicular line H1 is smaller than that before the expansion member 110 is expanded. By visually recognizing the change in the shape of the side wall marker portion 150A before and after the expansion of the expansion member 110, the operator or the like can confirm the guideline of the compression force applied to the puncture site p by the expansion member 110.

As described in the first modification, the positional relationship between the upper region 151 and the lower region 152 is not particularly limited as long as the operator or the like can visually recognize the change in the shape of the deformation member 140 before and after the expansion of the expansion member 110.

<Modification example 2 of the side wall marker portion>
15 and 16 show a modification 2 of the side wall marker portion 150B. FIG. 15 shows the deformed member 140 in a state before the expansion member 110 is expanded. FIG. 15 shows a deforming member 140 in a state where the expansion member 110 is expanded.

As shown in FIG. 15, the side wall marker portion 150B of the modified example 2 has two curved linear marker portions 156 and 157 and curved portions arranged closer to the second surface 142 than the respective marker portions 156 and 157. It has a linear marker portion 158. The side wall marker portion 150B forms a so-called pictogram-like pattern that imitates a human face.

The side wall marker portion 150B does not have an upper region 151 and a lower region 152.

As shown in FIG. 16, when the expansion member 110 is expanded, the distance L1 between the first surface 141 and the second surface 142 becomes smaller than before the expansion member 110 is expanded. Further, each marker portion 156, 157, 158 extends slightly in the left-right direction in the figure orthogonal to the perpendicular line H1. As described above, when the expansion member 110 is expanded, the shapes (patterns) represented by the marker portions 156, 157, and 158 change as compared with those before the expansion of the expansion member 110. By visually recognizing the change in the shape of the side wall marker portion 150B before and after the expansion of the expansion member 110, the operator or the like can confirm the guideline of the compression force applied to the puncture site p by the expansion member 110. Further, in the side wall marker portion 150B, when the pressing force applied by the expansion member 110 to the puncture site p is not uniform, the pictograms representing the human faces represented by the marker portions 156, 157, and 158 are tilted, and the face is tilted. The expression changes. Therefore, the surgeon or the like visually recognizes a change in the shape of the side wall marker portion 150B (change in facial expression) before and after the expansion of the expansion member 110, thereby exerting a pressing force on the puncture site p by the expansion member 110. You can also check the bias of.

As described in the second modification, the side wall marker portion 150B may not include the upper region 151 and the lower region 152. That is, the specific shape of the side wall marker portion 150B is not particularly limited as long as the operator or the like can visually confirm the change in the shape of the deformable member 140 before and after the expansion of the expansion member 110.

<Transformation example 1 of deforming member>
FIG. 17 shows a modification 1 regarding the shape of the deformation member.

As shown in FIG. 17, the deforming member 140A according to the first modification does not include the slit portion 147 (see FIG. 5). Therefore, the deformable member 140A has a ring-shaped outer shape. When the deforming member 140A does not have the slit portion 147 as in this modification, the side wall marker portion 150 can be provided on the entire circumference of the deformation member 140A. In this modification, the side wall marker portion 150 is arranged on the entire circumference of the inner wall 143a of the side wall 143.

When the side wall marker portion 150 is arranged on the entire circumference of the deformable member 140A as in the deformable member 140A, the operator or the like can visually recognize the side wall marker portion 150 from any angle. .. That is, the deforming member 140A does not have a portion where the side wall marker portion 150 formed by providing the slit portion 147 does not exist. Therefore, the operator or the like can more reliably visually recognize the side wall marker portion 150.

<Transformation example 2 of deforming member>
FIG. 18 shows a modification 2 regarding the shape of the deformation member 140.

As shown in FIG. 18, the deformable member 140B can be formed, for example, in a U-shape. In this modification, the side wall marker portion 150 is arranged on the inner wall 143a of the side wall 143. As illustrated in this modification, the outer shape of the deformation member 140 is not limited to an annular shape or a C-shape. Further, the deforming member may have, for example, a rectangular outer shape in which the slit portion 147 is not provided in the U-shape shown in FIG. 18, or a frame-shaped outer shape in which a through hole is formed in the rectangle. .. When the deforming member has a frame-shaped outer shape in which a through hole is formed in a rectangle without a slit portion, the side wall marker portion may be provided on the entire circumference of the inner wall of the side wall.

<Transformation example 3 of deforming member>
FIG. 19 shows a modification 3 regarding the structure of the deformation member.

The deforming member 140C of the modified example 3 is composed of a plurality of deforming members 148a and 148b.

Specifically, the deformable member 140C has a first deformable member 148a and a second deformable member 148b facing the first deformable member 148a.

The side wall is located on the outer surface side of the inner wall 143a and the inner wall 143a, which are composed of a portion of the first deformable member 148a facing the second deformable member 148b and a portion of the second deformable member 148b facing the first deformable member 148a. It is provided with an outer wall 143b. That is, each of the deforming members 148a and 148b includes an inner wall 143a and an outer wall 143b. The first deformable member 148a and the second deformable member 148b have substantially the same outer shape. In the present embodiment, the first deformable member 148a and the second deformable member 148b have inner walls 143a extending in the longitudinal direction of the respective members 148a and 148b arranged substantially in parallel with each other.

The side wall marker portion 150 is arranged on the inner wall 143a. The first deformable member 148a and the second deformable member 148b are fixed to the expansion member 110 in a state of being arranged at a position sandwiching the central portion (position where the marker portion 170 is provided) of the expansion member 110 (FIG. 4). reference).

A gap 149a is provided between the deforming members 148a and 148a. The surgeon or the like can arrange the sheath tube 410 of the introducer 400 in the gap 149a. Further, in the region sandwiched between the deforming members 148a and 148a, a space 149b having the same function as the through hole 145 is formed.

As described in the above modification, the deformation member can be composed of a plurality of members. Even when the deformable member is composed of a plurality of members, the operator or the like can easily grasp the expanded state of the expansion member 110 by visually recognizing the change in the shape of the side wall marker portion provided on the deformable member. can. The number of members constituting the deformable member is not limited to two. For example, it may be composed of three or more members. Further, when the deformable member is composed of a plurality of members, the outer shape of each member is not limited to the rectangular parallelepiped shape shown in FIG.

<Transformation example 4 of deforming member>
FIG. 20 shows a modified example 4 relating to the structure of the deformable member.

The deformable member 140D according to the fourth modification has a portion S to be cut so that a part of the deformable member 140D can be cut. The surgeon or the like can remove a part of the deformable member 140D along the excised portion S by pulling an arbitrary portion of the deformable member 140D.

The surgeon or the like can remove a part of the deformable member 140D according to the difference in the position of the puncture site p (for example, the difference between the left and right hands to be hemostasis), the insertion direction of the introducer 400, and the like. The surgeon or the like can form a slit portion 147 (see FIG. 5) in the deformable member 140D by removing a part of the deformable member 140D. Therefore, when the hemostatic device 100 is attached to the patient, the surgeon or the like prevents the sheath tube 410 and the deforming member 140 from interfering with each other regardless of the position where the puncture site p is formed or the insertion direction of the introducer 400. can.

The portion S to be cut can be formed of, for example, a notch formed in the deformable member 140D. The number of cut portions S formed on one deformable member 140D is not limited. Further, the position where the excised portion S is formed, the shape of the excised portion S (extending shape), and the like are not particularly limited.

(Second Embodiment)
FIG. 21 shows an example of using the hemostatic device 100A according to the second embodiment. In the description of the second embodiment, the description of the content that overlaps with the content already described in the first embodiment will be omitted. In addition, the contents not particularly explained in the description of the second embodiment can be the same as those of the first embodiment.

In the first embodiment, a hemostatic device 100A is described in which the puncture site p formed in the patient's hand (for example, the right hand) H is configured to be able to stop bleeding. The hemostatic device 100A of the second embodiment described below has a configuration capable of stopping bleeding at the puncture site p formed on the forearm portion (right forearm portion) A of the patient.

The hemostatic device 100A has a band 210A that can be wrapped around the forearm A. An expansion member 110 and a deformation member 140 are arranged on the inner surface of the band 210A (the surface on the side facing the forearm portion A). The band 210A can be composed of, for example, transparent, translucent, and colorless and transparent. With this configuration, when the band 210A is wound around the forearm A with the expansion member 110 arranged at the puncture site p, the operator or the like can visually recognize the side wall marker portion 150. .. The band 210A may be provided with a window portion 231 (see FIG. 4) having holes as in the band 210 according to the first embodiment.

A fixing member (for example, a hook-and-loop fastener) for fixing the band 210A in a state of being wound around the forearm A can be arranged on the band 210A.

When stopping bleeding at the puncture site p (perforation) leading to the radial artery running on the patient's forearm A, the surgeon or the like attaches the hemostatic device 100A to the patient's forearm A as shown in FIG. While the puncture site p is stopped by the operator using the hemostatic device 100A, the operator or the like changes the shape of the side wall marker portion 150 as in the case of using the hemostatic device 100 according to the first embodiment described above. By visually recognizing, the expanded state of the expansion member 110 can be easily grasped.

Although the hemostatic device according to the present invention has been described above through a plurality of embodiments and a plurality of modifications, the present invention is not limited to the contents described in the specification, but is based on the description of the scope of claims. It can be changed as appropriate.

The body part of the patient to be stopped by a hemostasis device is not particularly limited as long as it is a limb. For example, in the description of the first embodiment, a hemostatic device for stopping bleeding at the puncture site formed on the back of the left hand has been exemplified, but the hemostatic device includes a puncture site formed on the back of the right hand, a puncture site formed on the palm of the right hand, and the like. It is also possible to configure the puncture site formed on the palm of the left hand as a device to stop bleeding. Further, in the description of the second embodiment, a hemostatic device for stopping bleeding at the puncture site formed on the right forearm of the patient was illustrated, but the hemostatic device is configured as a device for stopping bleeding at the puncture site formed on the left forearm. It is also possible to do.

Further, the outer shape of the deformable member is not limited to the shape described by the illustration, and may be, for example, a polygon other than a rectangle, an ellipse, or another geometric shape. Further, regardless of the outer shape of the deformable member, the presence / absence of the slit portion and the presence / absence of the through hole can be arbitrarily selected.

In addition, the hemostatic devices described in each embodiment and each modification can be arbitrarily combined as long as the effects of the present invention can be exhibited.

In addition, regarding the shape, dimensions, structure, etc. of each part of the hemostatic device, it is possible to apply a compressive force to the puncture site by the expansion member while the hemostatic device is attached to at least a part of the limb including the hand and the forearm. As much as possible, there is no particular limitation.

100, 100A Hemostasis device 110 Expansion member 120 First expansion part 120a Inner surface 130 of the first expansion member Second expansion part 140, 140A, 140B, 140C, 140D Deformation member 141 First surface 142 Second surface 143 Side wall 143a Inner wall 143b Outer wall 145 Through hole 147 Slit part 148a First deforming member 148b Second deforming member 150, 150A, 150B Side wall marker part 151 Upper area 152 Lower area 153 Intermediate part 154 Plain part 160 Porous member 161 Bubble 170 Marker part 210, 210A Band 230 Main body 231 Window 250 1st arm 260 2nd arm 270 3rd arm 281 1st fixing member 282 2nd fixing member 283 3rd fixing member 284 4th fixing member 285 5th fixing member 300 Injection part 400 Introducer 410 Sheath tube A Forearm (limb)
H hand (limb)
S Excision site p Puncture site (site to stop bleeding)

Claims (12)

An expansion member placed at the site where bleeding should be stopped in the limb,
It has a deformable member that is fixed to the expansion member and can be deformed as the expansion member expands and contracts.
The deformable member has a first surface facing the expansion member, a second surface facing the first surface, and a side wall located between the first surface and the second surface.
The side wall includes a side wall marker portion located between the first surface and the second surface.
The side wall marker portion is configured such that the shape to be visually recognized changes due to the deformation of the deforming member due to the expansion and contraction of the expansion member in a state where the expansion member is arranged at the site to be hemostasis. Hemostatic device. The hemostatic device according to claim 1, wherein the deformable member is composed of a porous member containing bubbles that are deformed with expansion and contraction of the expansion member inside the deformable member. The side wall marker portion has an upper region located on the first surface side and a lower region located on the second surface side of the upper region.
In the side wall marker portion, the distance between the upper region and the lower region is reduced due to the deformation of the deforming member due to the expansion and contraction of the expansion member in a state where the expansion member is arranged at the site to be hemostasis. The hemostatic device according to claim 1 or 2, which is variable. The side wall marker portion has an intermediate portion connecting the upper region and the lower region.
The hemostatic device according to claim 3, wherein the intermediate portion is inclined with respect to a perpendicular line connecting the first surface and the second surface. The hemostatic device according to claim 3 or 4, wherein the upper region and the lower region are not located on a perpendicular line connecting the first surface and the second surface. The deformable member has a through hole connecting the first surface and the second surface.
The side wall has an inner wall located on the through hole side and an outer wall located on the opposite side of the inner wall.
The side wall marker portion is arranged on the inner wall and
The hemostatic device according to any one of claims 1 to 5, wherein the deformable member is fixed to the expansion member in a state where the through hole is arranged at the center of the expansion member. The deformable member includes a first deformable member and a second deformable member facing the first deformable member.
The side wall is located on the outer surface side of the inner wall and the inner wall composed of the portion of the first deformable member facing the second deformable member and the portion of the second deformable member facing the first deformable member. With an outer wall,
The side wall marker portion is arranged on the inner wall and
The first deformable member and the second deformable member are fixed to the expansion member in a state of being arranged at a position sandwiching a central portion of the expansion member, according to any one of claims 1 to 5. Hemostatic device. The expansion member has a marker portion for aligning the expansion member with the site to be hemostasis.
The hemostatic device according to claim 6 or 7, wherein the deformable member is fixed to the expansion member at a position where the inner wall surrounds the marker portion. The hemostatic device according to any one of claims 1 to 8, wherein the deformable member has a slit portion extending in the radial direction from the central portion side of the deformable member. It has a band for fixing the expansion member to the limb,
The band includes a first arm portion extending in a first direction from a position where the expansion member is arranged in the band.
A second arm portion extending from the expansion member in a second direction different from the first direction,
A third arm portion extending from the expansion member in the first direction and a direction different from the second direction is provided.
The hemostatic device according to claim 9, wherein the first arm portion is arranged at a position overlapping the position where the slit portion is arranged in the thickness direction of the deformable member. The hemostatic device according to claim 10, wherein the width of the slit portion is larger than the width of the first arm portion. The hemostatic device according to any one of claims 1 to 6, wherein the side wall marker portion is arranged on the entire circumference of the deformable member.

Images