JP2019216947A - Hemostatic device - Google Patents

Abstract

To provide a hemostatic device capable of stopping bleeding from a puncture site in a hand by pressing the site within a necessary minimum range.SOLUTION: A hemostatic device 100 according to the present invention is a hemostatic device for stopping bleeding from a puncture site in a hand H, and includes a compression force application part 10 capable of applying a compression force at least to the puncture site, and a contact part 20 that is installed on the compression force application part, is so configured that it can come into contact with the puncture site, and has a tapered shape.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a hemostatic device.

  As one of the catheter procedures, a patient's arm blood vessel (for example, a radial artery) is punctured, and various medical elongated bodies are introduced into the blood vessel through a puncture site formed in the patient's arm blood vessel, and a lesion is introduced. Techniques for performing treatment and treatment on a site are known.

  After the puncture, generally, a compressive force is applied to the puncture site or the vicinity thereof to stop the bleeding. As a conventional device for applying a compressive force, there is disclosed a hemostatic device including a band that can be wrapped around an arm on which a radial artery or the like travels, an expansion portion that can press a site to be stopped, and the like (Patent Documents). 1).

JP 2017-47039 A

  The device of Patent Document 1 is for compressing the arm, and is not configured to compress the distal radial artery or the snuff box of the hand. In addition, there are bones and tendons around the distal radial artery and the snuff box of the hand. Therefore, even if a compression force is applied using the device of Patent Literature 1, the device contacts an unnecessary portion such as a bone or a tendon and applies the compression force, and the compression force is not applied to the puncture site. There is a risk.

  Therefore, an object of the present invention is to provide a hemostasis device capable of compressing a hemostasis when a puncture site is formed in a hand in a minimum necessary range.

  The present invention that achieves the above object is a hemostasis device that stops a puncture site in a hand, wherein the puncture device is provided in the compression force application unit that can apply a compression force to at least the puncture site, And an abutting portion configured to be able to abut on the part and having a tapered shape.

  ADVANTAGE OF THE INVENTION According to the hemostatic device which concerns on this invention, since the taper shape of an abutting part is similar to the puncture site | part surrounded by bones, tendons, etc. in a hand and the shape of the periphery, the hemostasis when a puncture site | part is formed in a hand. Can be compressed in the minimum necessary range.

It is a perspective view showing the hemostatic device concerning a 1st embodiment of the present invention. FIG. 2 is a side view showing the hemostatic device according to FIG. 1. FIG. 2 is a plan view showing the hemostatic device according to FIG. 1. It is a figure which shows the example of use of the hemostatic device which concerns on FIG. It is a perspective view showing the hemostatic device concerning modification 1 of a 1st embodiment. FIG. 6 is a side view showing the hemostatic device according to FIG. 5. FIG. 8 is a plan view showing the hemostatic device according to FIG. 7. It is a fragmentary perspective view showing the hemostatic instrument concerning modification 2 of a 1st embodiment. It is a perspective view showing a hemostatic device concerning a 2nd embodiment of the present invention. FIG. 10 is a side view showing the hemostatic device according to FIG. 9. FIG. 10 is a plan view showing the hemostatic device according to FIG. 9. It is a side view showing a hemostatic device concerning a modification of a 2nd embodiment. It is a partial perspective view which shows the modification of the hemostatic device which concerns on FIG. FIG. 14 is a partial perspective view illustrating a modification of the hemostatic device according to FIG. 13. It is a perspective view which shows the modification of the hemostatic device which concerns on FIG. It is a perspective view which shows the modification of the hemostatic device which concerns on FIG. FIG. 17 is a plan view showing the hemostatic device according to FIG. 16. It is a perspective view showing other hemostatic devices concerning the present invention. FIG. 19 is a side view showing the hemostatic device according to FIG. 18.

  Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. Note that the following description does not limit the technical scope and the meaning of terms described in the claims. In addition, the dimensional ratios in the drawings are exaggerated for convenience of description, and may be different from the actual ratios. In the following description, the length direction of the hemostatic device is referred to as a length direction X. The width direction of the hemostatic device is referred to as a width direction Y. The direction in which the compression force is applied by the hemostatic device is referred to as a compression direction Z. Further, along the length direction X of the hemostatic device, the hemostatic portion side is referred to as a distal end, and the hand side for operation is referred to as a hand.

(1st Embodiment)
FIGS. 1 to 4 are views for explaining a hemostatic device 100 according to a first embodiment of the present invention.

  As shown in FIG. 4, the hemostatic device 100 includes a radial artery of an artery running on the back side of the hand H (for example, a puncture site P2 related to a radial artery in a snuff box or a distal radial artery on the fingertip side of the snuff box). Is used for hemostasis at the time of puncturing the puncture site P1) with a puncture needle. FIG. 4 shows an example in which the hemostatic device 100 is used in the right hand, but the hemostatic device 100 can also be applied to the above-described site in the left hand. In addition, the radial artery in the snuff box is the radial artery at the site located between the extensor tendon extensor tendon and the extensor pollicis longus on the distal side of the radial artery (Netter, 4th edition, anatomical key). Radial artery in a cigarette holder), hereinafter referred to as s-RA. The distal radial artery is a dorsal carpal branch of the radial artery, a radial artery located between the extensor pollicis longus tendon and the extensor carpi radialis longus tendon, and is hereinafter referred to as d-RA.

  The hemostatic device 100 has an abutting portion 20, a pressing force applying portion 10, and an operation portion 30 from the tip toward the hand, as generally described with reference to FIGS. The details will be described below.

(Compression force application section)
As shown in FIG. 1 and the like, the pressing force applying unit 10 has a clamp shape attached so as to sandwich at least the puncturing unit near the wrist of the patient, and applies a pressing force to the puncturing site. As shown in FIG. 2, the pressing force applying unit 10 includes clamping portions 11 and 12 attached to the contact pieces 21 and 22 of the contacting portion 20, respectively, and a biasing force for biasing the clamping portions 11 and 12. A unit 13. The compression force applying unit 10 includes a rotating shaft 14 that allows the holding units 11 and 12 to relatively approach and separate by operating the operation unit 30.

  The holding portions 11 and 12 are attached to the contact portion 20 and can be opened and closed by moving the holding portions 11 and 12 toward and away from each other about the rotation shaft 14. As shown in FIGS. 1 and 2, in the present embodiment, the sandwiching portions 11 and 12 are formed such that an intermediate portion in the length direction X has a substantially planar shape, and a distal end portion has an outwardly convex curved shape. However, the specific shape of the holding portions 11 and 12 is not limited to the above as long as the holding portions 20 can be attached and can be opened and closed. In addition to the above, the holding portion may be formed in a flat shape not only at the intermediate portion but also at the tip portion.

  The holding portions 11 and 12 are configured as a pair of members so that the contact portion 20 can contact the puncture site. That is, the holding portions 11 and 12 are configured as substantially the same member. However, as long as the contact portion 20 can contact at least the puncture site, the two holding portions need not be substantially the same member.

  The urging unit 13 applies an urging force to close the holding units 11 and 12. The urging portion 13 is formed in an arc shape as shown in FIG. 1 and includes an elastic member that can be elastically deformed.

  The elastic member of the urging portion 13 has an end 15 attached to the holding portion 11 as shown in FIG. The end 16 is attached to the holding portion 12. When the operation portions 30 are operated to open the holding portions 11, 12, the interval between the end portions 15, 16 increases, and the elastic member of the urging portion 13 is deformed accordingly.

  The elastic member of the urging portion 13 is shaped so that the end portion 15 and the end portion 16 approach each other in a state where no external force is applied, and when the operation force by the operation portion 30 is released, the holding portions 11 and 12 are released. The urging force is applied so as to approach. The elastic member of the urging portion 13 is configured to include a metal material in the present embodiment. However, the specific material is not limited to the above as long as it can be urged to close the holding portions 11 and 12 in a state where no external force is applied by the operation portion 30.

  The rotating shaft 14 is provided to support the holding portions 11 and 12 so that the holding portions 11 and 12 can be opened and closed. The holding portions 11 and 12 configured as a pair are configured to open and close (approach and separate) from the rotation shaft 14 as a starting point.

(Abutment part)
The contact portion 20 is provided in the pressing force applying portion 10 and is formed in a substantially polygonal shape so as to be able to contact at least a puncture site. The contact portion 20 includes contact pieces 21 and 22 as shown in FIG. The contact piece 21 has edges 23, 24, 25 and corners 26, 27, 28 as shown in FIG.

  The contact piece 21 is configured such that the edges 23 and 24 intersect at a sharp angle (tapered shape) at the corner 26. Here, the “taper (shape) shape” means that when the contact portion 20 is arranged at the puncture site, the edge portion 23, 24 means that the angle is smaller.

  The edges 23 and 24 are formed symmetrically in the left-right direction so that the sides of the edges 23 and 24 are substantially equal when viewed in a plan view from the compression direction Z in which the compression force is applied in the present embodiment. I have. The contact piece 21 has a substantially equilateral triangle when viewed from the compression direction Z as shown in FIG. However, if the edge 23 and the edge 24 can be configured to have substantially the same length when viewed from the compression direction Z, the contact piece 21 may be configured to be an isosceles triangle other than an equilateral triangle. In addition, two sides of the edge part 23 and the edge part 24 may be a straight line, and the edge part 25 may be a curve.

  As shown in FIG. 3, the corner 26 is provided at a portion where the edge 23 and the edge 24 corresponding to two sides forming a tapered shape expanding from the tip toward the hand when viewed in a plan view from the compression direction Z intersect. The corner 27 is provided at a portion where the edge 25 and the edge 23 intersect. The corner 28 is provided at a portion where the edge 24 and the edge 25 intersect.

  The contact piece 21 is formed to have a polygonal shape when viewed in plan from the compression direction Z as shown in FIG. As shown in FIG. 2, the contact piece 21 has a triangular shape on both the surface of the contact surface A and the surface of the opposite surface B. The polygonal shape of the contact piece 21 is not limited to the case where the tips of the corners 26, 27, and 28 are pointed like a needle as shown in FIG. Or, a case where a chamfered shape is formed is also included. Note that the polygonal shape may be a polygonal shape other than the triangle as shown in FIG. 3 as long as an unnecessary portion is not pressed when the polygonal shape is brought into contact with the puncture site.

  As shown in FIG. 2 and FIG. 3, the contact piece 21 has a thickness in the compression direction Z of a corner 26 where the edge 23 and the edge 24 intersect with each other, such as the edge 25 and the corners 27 and 28. That is, the tip side is thicker than the hand side. That is, as shown in FIG. 2, the contact piece 21 inclines the contact surface A that contacts the body surface such as the puncture site with respect to the opposite surface B so that the corner 26 is thicker than other portions. It is composed. Thereby, when the contact piece 21 of the hemostatic device 100 is brought into contact with the body surface of the puncture site P1 such as d-RA as shown in FIG. Compression force can be applied.

  The contact piece 21 has a contact surface A that is a flat surface. However, the specific shape is not limited to a plane as long as a compression force can be effectively applied to the puncture site.

  The contact piece 21 is made of one kind of material such as silicon, rubber, gel, metal, and ceramics in the present embodiment. The contact piece 21 applies a compressive force to the puncture site by being made of the above material. The hardness of the contact piece 21 is not particularly limited as long as a compressive force can be applied to the puncture site. For example, the contact piece 21 is softer than human skin or has approximately the same hardness as human skin to fit the puncture site. It is configured to be easy. According to the hardness index, the contact piece 21 can have an Asker C hardness (JIS K7312) of about 0 to about 10.

  The contact piece 22 is configured in the same manner as the contact piece 21, and a description thereof will be omitted. In the hemostatic device, the contact portion does not have to have the contact piece 22 as long as a compressive force can be applied to the puncture site. That is, the abutting pieces constituting the abutting portion need not be configured in pairs. When the hemostatic device has the contact piece 22, the contact piece 22 may have a shape different from that of the contact piece 21. For example, when the contact piece 22 having a substantially triangular shape is brought into contact with the puncture site on the back side of the hand H, the contact piece 22 may not have a tapered shape, and may be circular or square. .

(Operation unit)
The operation unit 30 is configured to open the holding units 11 and 12 against the urging force of the urging unit 13. The operation unit 30 includes grippers 31 and 32 that are gripped by fingers of a user as illustrated in FIG. The grip part 31 and the grip part 32 are configured to be a pair in the present embodiment.

  Further, as shown in FIG. 2, the grip portion 31 is formed integrally with the holding portion 12 of the pressing force applying portion 10, and the operation of the grip portion 31 is configured to interlock with the holding portion 12. The grip portion 32 is formed integrally with the holding portion 11 similarly to the grip portion 31, and the operation of the holding portion 32 is configured to interlock with the holding portion 11. As a result, when the user grips the grippers 31 and 32 and applies a grip force from the fingers, the grippers 11 and 12 operate so as to be relatively separated from each other.

(Example of use)
Next, a usage example of the hemostatic device 100 according to the present embodiment will be described. In the present embodiment, as an example, a case will be described in which the d-RA of the hand H (see the puncture site P1) is nipped and a compression force is applied as shown in FIG.

  First, a user such as a doctor or a nurse checks a puncture site P1 of a patient and prepares a medical device such as a puncture needle.

  Next, a user such as a doctor punctures the patient using a puncture needle or the like. When the puncture is completed, the doctor or the like introduces a medical instrument such as a guide wire or an introducer sheath necessary for the procedure from the puncture site P1 into the living body lumen of the patient, and performs the procedure. When the procedure is completed, the doctor or the like removes the medical device outside the living body.

  Next, a user such as a doctor checks the position of the puncture site P1 or the like as a hemostatic site in the patient. Next, the user places the contact portion 20 of the hemostatic device 100 at the puncture site P1. In this usage example, the hemostatic device 100 is directed from the direction d1 between the thumb and the index finger and between the direction in which the thumb extends and the direction in which the index finger extends in the angular direction (azimuth) toward the puncture site P1 as shown in FIG. Placed.

  Next, the user grips the grippers 31 and 32 of the operation unit 30 and applies a gripping force from the fingers, and widens the interval between the grippers 11 and 12 with the rotation shaft 14.

  Next, the user releases the gripping force applied to the gripping portions 31 and 32 and causes the gripping portions 11 and 12 to grip the corresponding portion.

  When the grip force applied to the operation unit 30 is released, the contact unit 20 holds the puncture site P <b> 1 of the patient by the urging force of the urging unit 13.

  When puncturing d-RA or the like of hand H, there are many bones, muscles, tendons, etc. around puncturing site P1 or the like. For this reason, when a hemostatic device used for the forearm or the like is used (diverted) to the above site, the contacting portion of the hemostatic device may contact bones, muscles, tendons, or the like, and may not apply a compressive force to the puncture site P1 or the like. On the other hand, the angle of the contact portion 20 of the hemostatic device 100 is smaller than the angle formed by the bones, muscles, tendons, and the like existing around the puncture site P1 when the edges 23 and 24 are viewed in a plan view from the compression direction Z. (Tapered shape).

  By forming in this manner, it is easy to make the contact portion 20 fit into the puncture site P1 between the thumb and the index finger of the hand H, and it is possible to suppress the application of a compressive force to an extra site other than the puncture site P1. . The puncture site P1 is stopped by bringing the contact unit 20 into contact with the puncture site P1 and maintaining the state in which the compression force is applied by the compression force application unit 10 for a predetermined time.

  In the above description, the hemostatic device 100 is arranged from the direction d1 shown in FIG. 4 toward the puncture site P1, but is not limited to this. In addition to the above, the hemostatic device 100a may be arranged from the direction d2 (see FIG. 4) toward the puncture site P1 from the base side of the patient's arm toward the puncture site P1.

  In this case, the corner 26a having a higher height in the compression direction Z in the contact portion 20a of the hemostatic device 100a can be appropriately changed according to the positional relationship with the puncture site P1, and may be, for example, the position shown in FIG. Can be. The hemostatic device 100a has the same configuration as the hemostatic device 100 except for the corners 26a. (The planar shape of the contact portion 20a is a substantially equilateral triangle in FIG. 4, but the shape is a puncture site. It should be changed as appropriate in accordance with the arrangement of the surrounding bones, muscles, tendons, etc.).

  As described above, the hemostatic device 100 according to the present embodiment stops the puncture site P1 of the hand H. The hemostatic device 100 has a pressing force applying unit 10 and an abutting unit 20. The compression force applying unit 10 is configured to be able to apply a compression force to at least the puncture site P1 of the patient. The contact portion 20 is provided in the compression force applying portion 10 and is configured to be able to contact the puncture site P1 and includes tapered edges 23 and 24.

  When stopping the puncture site such as d-RA of the hand H, there are many bones, muscles, tendons and the like around the site, and the balloon does not fit the puncture site even when using a forearm balloon type hemostatic device. It compresses to an unnecessary part, and it is difficult to stop and bleed the puncture site.

  On the other hand, by providing the abutment portion 20 of the hemostatic device 100 according to the present embodiment with the tapered edges 23 and 24 as described above, hemostasis occurs at the puncture site P1 between the thumb and the index finger of the hand H and the like. The device 100 can be easily fitted. Therefore, in the hemostasis when the puncture site is formed in the hand H, a pressing force can be applied within a minimum necessary range. Further, if the abutting portion 20 has a tapered shape corresponding to the angle between the thumb and the forefinger, a compressive force can be applied stably even in a place where bones are unstable.

  Further, the contact portion 20 is configured to be symmetrical with respect to the left-right line when viewed in a plan view from the compression direction Z in which the compression force is applied. Therefore, one type (one specification) of the hemostatic device can be used for both the right-hand hemostatic device and the left-hand hemostatic device without different specifications.

  The contact portion 20 includes a corner 26 where two edges 23 and 24 of a tapered shape intersect when viewed in a plan view from the compression direction Z in which the compression force is applied. The corner 26 is configured to be thicker than other portions such as the edge 25 and the corners 27 and 28 in the contact portion 20. Therefore, the puncture site can be easily pressed by the corner 26 as in the case where the hemostatic device 100 is used for the puncture site P1 or the like located on the body surface of the d-RA between the thumb and the index finger, whereby the puncture can be performed. Compression force can be effectively applied to the site P1 and the like. Alternatively, the corner may be formed such that the proximal corner of the contact portion 20a is thicker than the distal corner of the contact portion 20a like the hemostatic device 100a.

  Further, the pressing force applying unit 10 includes holding units 11 and 12 and an urging unit 13. The holding parts 11, 12 are attached to the contact part 20, and are configured to be openable and closable. The urging portion 13 urges the holding portions 11 and 12 to close. By configuring the compression force applying unit 10 in this manner, a compression force can be applied by the urging unit 13 to the puncture site P1 or the like through the contact unit 20.

(Modification 1 of the first embodiment)
FIGS. 5, 6, and 7 are a perspective view, a side view, and a plan view showing a hemostatic device 100b according to a first modification of the first embodiment. In the first embodiment, it has been described that in the contact pieces 21 and 22 of the contact portion 20 of the hemostatic device 100, the corner 26 has a higher height in the compression direction Z than the edge 25 and the corners 27 and 28, It is not limited to this.

  In addition to the above, as shown in FIGS. 5 to 7, in the contact pieces 21 b and 22 b of the contact part 20 b, the thickness of the corner 26 b is the same as that of the corners 27 b and 28 b on the edge 25 b side of the contact part 20 b. The height may be lower (thinner) than other parts. Note that the other configuration is the same as that of the first embodiment, and a description thereof will be omitted.

  With this configuration, when the hemostasis site includes the puncture site P2 such as s-RA shown in FIG. 4, a compression force can be effectively applied to these sites. Note that, in this case, the direction in which the hemostatic device 100b is arranged may be from the direction d1 shown in FIG. 4 or the direction d2 as in the first embodiment. When the hemostatic device 100b is arranged from the direction d2, the position of the corner having a lower height than the other portions may be appropriately changed with respect to the position with the compression force applying unit.

(Modification 2 of the first embodiment)
FIG. 8 is a partial perspective view showing a hemostatic device 100c according to Modification 2 of the first embodiment. FIG. 8 illustrates the lower half of the hemostatic device 100c similar to FIG. 1 for convenience of description. FIG. 1 illustrates an embodiment in which the shape of the contact surface side of the contact portion 20 that comes into contact with the puncture site P1 in the hemostatic device 100 is a flat surface, but is not limited thereto. In addition to the above, as shown in FIG. 8, a projecting shape 29c capable of contacting the puncture site may be provided on the contact surface side of the contact piece 22c constituting the contact portion 20c, which contacts the puncture site. The other configuration is the same as that of the first embodiment, and the description is omitted. With this configuration, it is possible to effectively apply a pressing force to the puncture site by the projection shape 29c.

(2nd Embodiment)
9 to 11 are a perspective view, a side view, and a plan view showing a hemostatic device 100d according to the second embodiment. In the above description, the hemostatic device 100 has been described as including the compression force applying unit 10 including the urging unit 13 and the rotating shaft 14 and the operation unit 30, but may be configured as follows.

  The hemostatic device 100d has a pressing force applying portion 10d and a contact portion 20d as shown in FIGS. 9 to 11.

(Compression force application section)
As shown in FIG. 9, the pressing force applying unit 10d includes a holding unit 11d and a holding unit 12d. The holding portions 11d and 12d have different shapes from each other, unlike the holding portions 11 and 12 of the first embodiment. The holding portion 11d is attached to the contact portion 20d as shown in FIGS. 9 and 10, and has a thin plate-like curved shape that urges the ends of the holding portions 11d and 12d to close. I have. The holding portion 11d is configured to be elastically deformable like a leaf spring by being configured as described above.

  The holding portion 12d is configured to have a substantially flat planar shape. As shown in FIG. 10, the holding portion 11d is formed by separating one substantially band-shaped member from the holding portion 12d by a bent portion 13d.

  By configuring the holding section 11d as described above, the holding section 13, the rotating shaft 14, and the operation section 30 are omitted, and the holding section 11d urges to close the contact section 20d. Further, the user of the hemostatic device 100d can use the holding portions 11d and 12d as a handle like the operation unit 30 of the first embodiment. For this reason, it is possible to reduce the number of parts and reduce the cost.

(Abutment part)
The contact portion 20d includes contact pieces 21d and 22d as shown in FIG. The contact piece 21d includes edges 23d, 24d, 25d and corners 26d, 27d, 28d, 29d as shown in FIGS. The shape when the contact piece 21d is viewed in a plan view from the compression direction Z is the same as that of the first embodiment, and the description is omitted.

  Unlike the first embodiment, the contact piece 21d is different from the first embodiment in that the size of the compression direction Z at the corner 26d is not larger than that of the other parts as shown in FIGS. Is configured to have the largest size. That is, the contact piece 21d has a substantially triangular pyramid shape with the corner 29d as the apex in the present embodiment. Further, the contact piece 21d is configured to have a shape larger than the cross section of the holding portion 11d of the pressing force applying portion 10d as shown in FIGS.

  The contact piece 22d includes edges 23d, 24d, 25d and corners 26d, 27d, 28d as shown in FIG. The contact piece 22d is connected to the substantially flat holding portion 12d as shown in FIG. 9 and the like, and is formed substantially flat like the holding portion 12d. The shapes of the edges 23d and 24d of the contact piece 22d when viewed in a plan view are the same as the edges 24 and 25 in the first embodiment, and a description thereof will be omitted.

  Unlike the edge 25d of the contact piece 21d, the edge 25d of the contact piece 22d is formed so as to be connected to the holding portion 12d. The corners 26d, 27d, and 28d are the same as the corners 26, 27, and 28 in the first embodiment, and a description thereof will be omitted.

(Example of use)
Next, a usage example of the hemostatic device 100d according to the present embodiment will be described. Note that the insertion of the puncture needle and the procedure using the medical device are the same as those in the first embodiment, and thus the description thereof is omitted.

  First, a user such as a doctor or a nurse grasps a hemostatic site in a patient.

  Next, the user grips the holding portions 11d and 12d of the compression force applying portion 10d of the hemostatic device 100d with fingers or the like to separate the holding portions 11d and 12d.

  Next, the user places the contact portion 20d of the hemostatic device 100d at the puncture site P1. The direction in which the hemostatic device 100d is arranged at the puncture site P1 may be from the direction d1 shown in FIG. 4 or may be from the direction d2.

  When the contact portion 20d of the hemostatic device 100d is disposed at the puncture site P1, the holding portion 11d and the holding portion 12d are approached from each other while being separated. Then, the puncture site P1 is held between the contact pieces 21d and 22d of the contact portion 20d.

  The hemostatic device 100d is configured such that the holding portion 11d is formed in a curved shape so that the holding portion 11d approaches the holding portion 12d in a state where no external force is applied. Thereby, the puncture site P1 can be held by the contact portion 20d. Of course, the user may hold the holding portions 11d and 12d and apply an external force so that the holding portions 11d and 12d approach each other. By maintaining this state for a predetermined time, hemostasis of the puncture site P1 is performed.

  As described above, in the present embodiment, the pressing force applying portion 10d is attached to the contact portion 20d, and has a thin plate-like curved shape which urges the ends of the holding portions 11d and 12d to close. It is configured to include a portion 11d. Therefore, a pressing force can be easily applied to the puncture site from the contact portion 20d by the curved shape of the holding portion 11d.

(Modification of the second embodiment)
FIG. 12 is a side view showing a hemostatic device 100e according to a modification of the second embodiment. In the second embodiment, as shown in FIG. 10, the embodiment in which the contact piece 21d forming the contact part 20d is configured to be larger than the cross section of the holding part 11d of the pressing force applying part 10d is described. However, the present invention is not limited to this, and the size of the contact portion 20e may be substantially the same as the cross section of the holding portion 11e constituting the pressing force applying portion 10e as shown in FIG. Alternatively, if the hole formed by puncturing is small, the contact portion 20e may be smaller than the end face of the holding portion 11e. Note that the other configuration is the same as that of the hemostatic device 100d according to the second embodiment, and a description thereof will not be repeated.

  Note that the present invention is not limited to the above-described embodiment, and various changes can be made within the scope of the claims.

  FIG. 13 is a partial perspective view showing a hemostatic device 100f according to a modification of FIG. In the first embodiment, the abutment pieces 21 and 22 of the abutment portion 20 are configured so that the height in the compression direction Z is increased at the corner 26, but the invention is not limited thereto. In addition to the above, in the case where the hemostatic device 100f has the compression force applying unit 10 and the operating unit 30 as in the first embodiment, as shown in FIG. You may comprise so that it may be provided. In this case, the other abutting piece (not shown) may have a corner 29f similarly to the abutting piece 22f, or may be configured to be substantially flat without being paired as shown in FIG. . Note that the contact piece 22f of the contact portion 20f is configured to include one type of material as in the first embodiment. Alternatively, the contact piece 22f may be made of a gel-like flexible material, and may be deformed so as to conform to the shape of the puncture site and the periphery to improve the adhesion and hemostasis.

  FIG. 14 is a partial perspective view showing a hemostatic device 100g according to a modification of FIG. In FIG. 13, it has been described that the contact piece 22f related to the contact portion 20f is configured to include one type of member, but the present invention is not limited to this. In addition to the above, the contact piece 22g of the contact portion 20g may be configured to include a first member 23g and a second member 24g as shown in FIG. The second member 24g is disposed adjacent to the puncture site than the first member 23g in the compression direction Z for applying a compression force, and is made of a material having a lower hardness than the first member 23g.

  The hardness of the second member 24g can be the same as that of the contact portion 20 of the first embodiment. The hardness of the first member 23g is not particularly limited as long as the hardness is higher than the second member 24g. For example, the Asker C hardness can be about 10 to 20 as an example. With this configuration, it is possible to easily fit the contact portion to the puncture site as in the first embodiment and the like.

  The contact piece 22g has a similar shape to the second member 24g, but does not have to be similar. The first member 23g may be a triangular pyramid, and the second member 24g may be provided so as to cover the apex. In that case, the vertex of the second member 24g may be located on a vertical extension line extending from the triangular pyramid bottom surface of the first member 23g toward the vertex, and the vertex of the second member 24g may be located away from the vertical line. It may be. Alternatively, the contact piece 22g may have a truncated triangular pyramid shape. The truncated triangular pyramid may or may not be parallel to the bottom surface.

  When stopping the d-RA, the distance from the surface of the hand to the blood vessel is short. Therefore, it is preferable that the tip of the contact piece 22g is thin and the hand side is thick. In the case of d-RA, since the thickness of the hand increases in the direction d1, the shape formed by the tendon or the bone in the hemostatic portion matches the angle formed by the bottom surface of both the contact pieces 22g of the contact pieces 22g. is there.

  When stopping s-RA, it is preferable that the tip of the contact piece 22g is thick and the hand side is thin. In the case of s-RA, the hemostatic portion is located deeper than the hand surface, so that when the thickness of the abutment piece 22g on the hand side increases, it matches the shape formed by tendons and bones.

  In addition, what changed the shape of the 1st member 23g and the 2nd member 24g of the contact piece 22g according to the position of a blood vessel and the shape of a bone or tendon may be prepared.

  FIG. 15 is a perspective view showing a hemostatic device 100h according to a modification of FIG. In the present invention, in addition to the above, in order to enhance the hemostatic effect, as shown in FIG. 15, a plurality of projections are provided as a heat radiation shape on a portion opposite to the contact surface side like the contact piece 21h of the contact portion 20h. be able to.

  With this configuration, it is possible to cool the contact piece 21h that applies the compressive force, thereby contracting the blood vessel and enhancing the hemostatic effect. The configuration for cooling the contact portion is not limited to the plurality of protrusions. In addition to the above, the material of the contact portion 20h may be made of a material having higher thermal conductivity than the material of the pressing force applying portion 10h. It may be substituted. Alternatively, the contact portion may be cooled by providing a Peltier element on the contact piece of the contact portion instead of the plurality of protrusions, or by providing a flow path of cooling water inside the contact piece.

  FIGS. 16 and 17 are a perspective view and a plan view showing a hemostatic device 100k according to a modification of FIG. In the first embodiment, the shapes of the contact surface A and the opposite surface B (on the bottom surface) of the contact pieces 21 and 22 of the contact portion 20 are all configured as triangles, but are not limited thereto. If the contact portion does not come into contact with a site such as a bone, a muscle, a tendon, or the like near the puncture site in the hand H, as shown in FIGS. 16 and 17, in addition to the above, in the contact pieces 21 k and 22 k of the contact portion 20 k The contact surface A may be formed as a triangle, and the shape of the opposite surface B may be formed as a substantially circle. Further, the triangle of the contact surface A of the contact portion 20k and the circle of the opposite surface B may be reversed.

  18 and 19 are a perspective view and a side view showing a hemostatic device 100m according to a modification of the present invention. In the above, the embodiment in which the pressing force is generated by opening and closing the holding portions 11 and 12 of the pressing force applying portion 10 as illustrated in FIG. 1 and the like has been described.

  However, the present invention is not limited to this. As shown in FIGS. 18 and 19, a band-shaped member 11m, a metal fitting 12m, an insertion metal fitting 13m, a hole 14m, and a contact part 20m, which constitute the pressing force applying part 10m, The puncture site may be stopped by the hemostatic device 100m provided with.

  As shown in FIGS. 18 and 19, the belt-shaped member 11m is formed of an elongated and flexible member. The metal fitting 12m is attached to the band-shaped member 11m at both ends in the width direction near one end in the longitudinal direction of the band-shaped member 11m, and is configured by a member having a substantially U-shape.

  The insertion fitting 13m is provided substantially at the center in the width direction near one end in the longitudinal direction of the strip-shaped member 11m, similarly to the fitting 12m. As shown in FIG. 18, a plurality of holes 14m are provided at intervals in the longitudinal direction of the band-shaped member 11m near the end opposite to the metal fitting 12m or the insertion metal fitting 13m in the longitudinal direction as shown in FIG. The contact portion 20m is configured so as to provide one having a tapered shape like the contact portion 20e of FIG.

  The method of using the hemostatic device 100m will be described. The end opposite to the metal fitting 12m in the longitudinal direction of the band-shaped member 11m is connected to the metal fitting 12m so that the contact part 20m abuts on the puncture site of the patient's hand H. Then, the hemostatic device 100m is wound around the hand H. Then, the insertion fitting 13m is inserted into an appropriate place in the hole 14m, and in this state, the band-shaped member 11m is deformed outward in the radial direction of the hand H, and the engagement between the insertion metal 13m and the hole 14m in the band-shaped member 11m is achieved. Generates clamping force. As described above, the compressive force is applied to the puncture site from the contact portion 20m by the fastening force of the band-shaped member 11m, and hemostasis can be performed. In addition, as long as a fastening force can be generated in the belt-shaped member, the present invention is not limited to the engagement between the insertion fitting and the hole, and may be fixed with a hook-and-loop fastener or an adhesive.

  Further, in the hemostatic device 100 and the like shown in FIG. 1 and the like, the contact portion 20 may be configured to be rotatable with respect to the pressing force applying portion 10. This makes it possible to more easily position a portion that is high in the compression direction Z, such as the corner 26 shown in FIG.

100, 100a-100h, 100k, 100m hemostatic device,
10, 10d, 10e, 10h, 10m Compression force applying unit,
11, 12 clamping part,
11d, 11e clamping portion (curved shape),
13 urging unit,
20, 20a-20h, 20k, 20m contact part,
23, 24, 25, 23b, 24b, 25b, 23d, 24d, 25d edge,
23g first member,
24g second member,
26 corners,
29c projection shape,
H hand,
P1, P2 puncture site,
Z Compression direction.

Claims (8)

A hemostatic device for stopping a puncture site of a hand,
A compression force application unit that can apply compression force to at least the puncture site,
A hemostatic device provided at the compression force applying unit, the abutment unit being configured to be able to abut on the puncture site and having a tapered shape.   2. The hemostatic device according to claim 1, wherein the abutting portion is formed symmetrically with respect to a left-right line when viewed in a plan view from a compression direction for applying a compression force. The contact portion includes a corner portion where two sides forming the tapered shape intersect when viewed in a plan view from a compression direction for applying a compression force,
The hemostatic device according to claim 1, wherein a thickness of the corner portion is formed to be thicker than other portions in the contact portion. The contact portion includes a corner portion where two sides forming the tapered shape intersect when viewed in a plan view from a compression direction for applying a compression force,
The hemostatic device according to claim 1, wherein a thickness of the corner portion is formed to be thinner than other portions in the contact portion.   4. The pressure force applying unit according to claim 1, further comprising a holding unit that is attached to the contact unit and that can be opened and closed, and a pressing unit that presses the holding unit to close the holding unit. 5. The hemostatic device according to Item.   The hemostatic device according to any one of claims 1 to 4, wherein the compression force applying portion has a thin plate-like curved shape attached to the contact portion and biasing the end portion to close.   The hemostatic device according to any one of claims 1 to 6, wherein the abutting portion has a projection shape that can contact the puncture site.   The contact portion is formed of a first member and a material having a lower hardness than the first member, which is disposed adjacent to the puncture site than the first member in a compression direction for applying a compression force. The hemostatic device according to any one of claims 1 to 7, comprising a second member.