WO2023218513A1

WO2023218513A1 - Suture aid

Info

Publication number: WO2023218513A1
Application number: PCT/JP2022/019742
Authority: WO
Inventors: 宇佐美　潤
Original assignee: 宇佐美　潤
Priority date: 2022-05-09
Filing date: 2022-05-09
Publication date: 2023-11-16

Abstract

Provided is a suture aid with which it is possible to reliably suture two blood vessels easily and in a short period of time, regardless of operator skill.　This suture aid (1) is for suturing two blood vessels together with a suture thread, the suture aid (1) being provided with a trunk part (30), a first suture part (10) that can be attached to/detached from the trunk part (30), and a second suture part (20) that can be attached to/detached from the trunk part (30).　The suture aid (1) makes it possible to suture two blood vessels (100, 110) together merely by feeding a single suture thread (200) into a suture thread passage (50), making it possible to reliably suture the two blood vessels (100, 110) easily and in a short period of time regardless of operator skill. The suture aid (1) is provided with a thread removal part (80), making it possible, after suturing the two blood vessels (100, 110) together, to remove the first suture part (10), the second suture part (20), and the trunk part (30) from the blood vessels (100, 110).

Description

Suture aid

The present invention relates to a suturing aid.

Patent Document 1 discloses a suturing vascular anastomosis device used for suturing two blood vessels. This blood vessel anastomosis device for suturing includes a pair of circular tubes, and a plurality of targeting and tightening protrusions are provided on the outer surface of each circular tube so as to alternate in the circumferential direction. According to this, each blood vessel is passed through each circular tube, its ends are turned over, and each target/tightening protrusion of each circular tube is placed in a state where the round tubes are brought together so that the turned ends are brought together. The two vessels are sutured at their everted ends by passing the suture alternately through them with the suture turning point between them.

Special Publication No. 34-7395

However, with this suturing vascular anastomosis device, the operator passes the suture thread between each of the target and tightening protrusions in order, which takes time and effort. Furthermore, the operator may incorrectly pass the suture thread between the target and tightening protrusions, and the two blood vessels may not be sufficiently sutured. Furthermore, since the ends of the blood vessels are turned over and sutured, the sutured portion of the two blood vessels becomes flange-like, making it impossible to suture the two blood vessels neatly.

An object of the present invention is to provide a suturing aid that can reliably suture two blood vessels easily and in a short time, regardless of the skill of the operator.

The suturing aid of the present invention is for suturing two blood vessels with a suture thread, and includes a body, a first suture part that is detachable from the body, and a second suture part that is detachable from the body. It is equipped with The first suture section includes one or more first passages through which a suture thread can pass. The second suture section includes one or more second passages through which a suture thread can pass. The body includes one or more third passageways through which sutures can be passed. The first suture section, the second suture section, or the body section is a passage for introducing a suture thread, and is provided with an introduction passage that substantially communicates with the first passage, second passage, or third passage and the outside. The first suture part, the second suture part, or the body part is a passage for leading out the suture thread, and is provided with a lead-out passage that substantially communicates with the first passage, the second passage, or the third passage and the outside. The first passage, the second passage, and the third passage are each provided with a thread removal portion that allows the suture passed through the passage to be removed from the side of the passage. The third passage includes one or more first passages and one or more second passages that approximately communicate with two adjacent or nearby passages. The introduction passage, the first passage, the second passage, the third passage, and the outlet passage are a substantially continuous line in which the suture sent from the introduction passage passes through the first passage, the second passage, and the third passage and is sent out from the extraction passage. A suture passageway is formed that extends in a meandering or substantially spiral manner around a predetermined direction.

According to the suturing aid of the present invention, two blood vessels can be sutured by simply feeding one suture thread into the suture passage, so regardless of the skill of the operator, two blood vessels can be sutured easily and in a short time. can be sutured securely.

FIG. 2 is a perspective view showing a suturing aid according to an example of the first embodiment. FIG. 2 is an exploded perspective view showing the suturing aid of the example of the first embodiment. It is a figure which shows a 1st suture part, Comprising: (A) is a bottom view, (B) is a side view, and (C) is a top view. FIG. 3C is a cross-sectional view taken along the line IV-IV in FIG. 3(C). FIG. 3B is a sectional view taken along the line VV in FIG. 3(B). FIG. 7 is a sectional view showing another aspect of the regulating passage and the movement regulating portion of the first sutured portion. It is a figure which shows a 2nd suture part, Comprising: (A) is a top view, (B) is a side view, (C) is a bottom view. It is a figure which shows a trunk|drum, Comprising: (A) is a top view, (B) is a front view. It is a figure which shows the planar positional relationship of the 1st passage, the 2nd passage, the 3rd passage, and the introduction/exit passage in the state where the 1st suture part and the 2nd suture part were attached to the trunk|drum. (A) is a plan view showing the state where the side of the blood vessel is incised, (B) is a plan view showing the state where the first suture portion is inserted into the blood vessel, and (C) is a plan view showing the state where the first suture portion is inserted into the blood vessel. FIG. 3 is a front view showing a state in which the first seam portion and the second seam portion are attached to the torso. FIG. 3 is an exploded perspective view showing how the sides (openings) of two blood vessels are sutured using a suturing aid. FIG. 3 is an exploded perspective view showing a state in which the trunk, the first sutured portion, and the second sutured portion are removed from the blood vessel and the suture. It is a perspective view showing a state in which two blood vessels are sutured. It is a perspective view which shows the suturing aid of the example of 2nd Embodiment. FIG. 7 is an exploded perspective view showing a suturing aid according to an example of the second embodiment. It is a figure which shows a trunk|drum, Comprising: (A) is a top view, (B) is a front view, and (C) is a side view. It is a figure which shows the 1st suture part, Comprising: (A) is a top view, (B) is a front view, (C) is a side view (left side view) which shows an outer peripheral surface, (D) shows an inner peripheral surface. A side view (right side view), and (E) is a sectional view taken along the line XVII-XVII of (D). It is a figure which shows the 2nd suture part, Comprising: (A) is a top view, (B) is a front view, (C) is a side view (right side view) which shows an outer peripheral surface, (D) shows an inner peripheral surface. A side view (left side view), (E) is a sectional view taken along the line XVIII-XVIII of (D). FIG. 3 is a diagram showing a regulating passage and a movement regulating part, in which (A) is a diagram showing the inner circumferential surface of the first sutured part developed on a plane, and (B) is a diagram showing the inner circumferential surface of the second sutured part developed in a plane. This is a diagram. FIG. 14 is a plan view of each circumferential surface viewed from the outside in the horizontal direction toward the center of the torso, and (A) is the inner circumferential surface of the first seam portion and the second seam portion. , (B) shows the outer circumferential surface of the trunk, and (C) is a superimposed view of (A) and (B). FIG. 2 is a diagram illustrating a restriction passage and a movement restriction portion, and is a plan view of the outer circumferential surface of the body. (A) is a diagram showing how the torso is inserted into two blood vessels, and (B) is a diagram showing how the first suture part and the second suture part are attached to the torso inserted into the blood vessels. FIG. 3C is a diagram showing how the suture thread is inserted into the introduction/exit path of the suturing aid. FIG. 20 is a schematic diagram showing the path of the suture using FIGS. 20(A) and 20(B). (A) is a diagram showing the state in which the first sutured part and the second sutured part are removed from the body after passing the suture through the suturing aid, and (B) is a diagram showing the state in which the body is removed from the two blood vessels. It is a figure which shows the state which removed, and (C) is a figure which shows the state in which two blood vessels were sutured.

The suturing aid 1 is for suturing two

blood vessels

100 and 110 with a suture thread 200, and includes a body part 30, a first suture part 10 that is detachable from the body part 30, and a first suture part 10 that is detachable from the body part 30. A possible second suture portion 20 is provided. The first suture section 10 includes one or more first passages 11 through which the suture thread 200 can pass. The second suture section 20 includes one or more second passages 21 through which the suture thread 200 can pass. The trunk 30 includes one or more third passages 31 through which the suture thread 200 can pass. The first suture section 10, the second suture section 20, or the body section 30 is a passage for introducing the suture thread 200, and is approximately in communication with the first passage 11, the second passage 21, or the third passage 31 and the outside. An introduction path 40 is provided. The first suture section 10, the second suture section 20, or the body section 30 is a passage for leading out the suture thread 200, and is approximately in communication with the first passage 11, the second passage 21, or the third passage 31 and the outside. A lead-out path 40 is provided. The first passage 11, the second passage 21, and the third passage 31 are provided with a thread removal part 80 that can remove the suture thread 200 passed through the passage from the side of the passage. The third passage 31 includes one that approximately communicates with two adjacent or nearby passages among the one or more first passages 11 and the one or more second passages 21. The suture thread 200 fed from the introduction path 40 passes through the first path 11 , the second path 21 , and the third path 31 . One suture passage 50 is formed which is a substantially continuous passage sent out from the lead-out passage 40 and extends in a meandering (wavy) or substantially spiral shape around a predetermined direction.

The thread removal portion 80 is, for example, a slit, groove, or opening provided on the side of each passage along the passage direction (longitudinal direction of the passage) and connects the passage to the outside. The predetermined direction is, for example, the vertical direction (height direction) or the axial direction of the body 30, and these may be the same as the circumference (outer circumference, side circumference) of the body 30. Two adjacent or nearby first passages 11 and one or more second passages 21 include two adjacent or nearby first passages 11, two adjacent or nearby first passages 11, and one or more second passages 21, which are adjacent or nearby. Two second passages 21 and adjacent or neighboring first passages 11 and second passages 21 are included. In the suture thread passage 50, for example, the introduction passage 40, the first passage 11, the second passage 21, the third passage 31, and the lead-out passage 40, which are generally in communication, are generally in communication at the ends in the respective passage directions. In addition, if the suture thread 200 sent in from the introduction path 40 is sent out from the lead-out path 40, the suture path 50 is connected to the introduction path 40, the first path 11, the second path 21, the third path 31, and the like. The lead-out paths 40 may be in contact with each other, or there may be a gap between them.

Since the suturing aid 1 can suture two

blood vessels

100 and 110 by simply feeding one suture thread 200 into the suture thread passage 50, it is possible to suture two

blood vessels

100 and 110 easily and in a short time regardless of the skill of the operator.

Blood vessels

100 and 110 can be sutured reliably. In addition, the suturing aid 1 includes a thread removal section 80, so that after suturing the two

blood vessels

100, 110, the first suture section 10, the second suture section 20, and the body section 30 are removed from the

blood vessels

100, 110. be able to.

<First embodiment>
The suturing aid 1 of the first embodiment is for suturing two

blood vessels

100 and 110 on their sides. The suturing aid 1 of the first embodiment includes a body portion 30, a first suturing portion 10, and a second suturing portion 20. The first stitched portion 10 is removably attached to the body portion 30. The second stitched portion 20 faces the first stitched portion 10 and is detachable from the trunk 30 . The first suture section 10 includes a plurality of first passages 11 through which the suture thread 200 can pass. Further, the second suture section 20 includes a plurality of second passages 21 through which the suture thread 200 can pass. Further, the body portion 30 includes a plurality of third passages 31 through which the suture thread 200 can pass. The first passage 11 is provided on the surface of the first stitched portion 10 that faces the second stitched portion 20 . Further, the second passage 21 is provided on the surface of the second stitched portion 20 that faces the first stitched portion 10 . Further, the third passage 31 substantially communicates with each first passage 11 and each second passage 21 located nearby. For example, the third passage 31, each of the first passages 11, and each of the second passages 21 substantially communicate with each other at the ends of the passages in the passage direction. The first suture section 10, the second suture section 20, or the body section 30 is a passage for introducing the suture thread 200, and is an introduction passageway that communicates with the first passage 11, the second passage 21, or the third passage 31 and the outside. 40. Further, the first suture section 10, the second suture section 20, or the body section 30 is a passage for leading out the suture thread 200, and is connected to the first passage 11, the second passage 21, or the third passage 31 and the outside. A lead-out path 40 is provided. The first passage 11, the second passage 21, and the third passage 31 allow the suture thread 200 passed through the passages to be removed from the thread removal section 80. The suture thread 200 fed from the introduction path 40 passes through the first path 11 , the second path 21 , and the third path 31 . A suture thread passage 50 is formed which is a substantially continuous passage sent out from the lead-out passage 40 and extends in a meandering (winding) manner around a predetermined direction.

The first suture section 10 and the second suture section 20 connect the first passage 11 and the second passage 21 to each

blood vessel

100, 110 from an opening (cut) provided in the side surface (side peripheral surface) of each

blood vessel

100, 110. It is attached to the

blood vessel

100, 110 by inserting it into the

blood vessel

100, 110 toward the

openings

102, 112 of the tube. The first suture section 10 and the second suture section 20 attached to the

blood vessels

100 and 110 are attached to the trunk 30 facing each other. When the first suture section 10 and the second suture section 20 are attached to the trunk 30, when the suture thread 200 for suturing the

blood vessels

100 and 110 is inserted and fed through the introduction path 40, the suture thread 200 rotates around a predetermined direction. The suture thread is passed through the suture passageway 50 while meandering, stitched together around the edges of the openings provided on the sides of the two

blood vessels

100 and 110, and then sent out from the lead-out passageway 40. The first passage 11, the second passage 21, and the third passage 31 are capable of removing the suture thread 200 passed through the passages from the thread removal section 80, and the introduction passage 40 and the extraction passage 40 are Since it is possible to remove the suture thread 200 from the passageway by pulling the suture thread 200 passed through the passageway in the direction of the passageway, after passing the suture thread 200 through the suture aid 1, The two sutures 20 and body 30 can be removed from the two

blood vessels

100, 110 and the suture 200 threaded between them.

The suturing aid 1 of this embodiment is capable of suturing two

blood vessels

100 and 110 through the side openings of these by simply feeding one suture thread 200 into the suture thread passage 50, so it does not require the skill of the operator. Therefore, the two

blood vessels

100 and 110 can be easily and reliably sutured on their sides in a short time. In addition, the suturing aid 1 includes a thread removal section 80, so that after suturing the two

blood vessels

100, 110. be able to.

The introduction path 40 and the exit path 40 may include a thread removal section 80 that can remove the suture thread 200 passed through the path from the side of the path.

According to this, the suture thread 200 passed through the suture thread passage 50 (introduction passage 40, first passage 11, second passage 21, third passage 31, and lead-out passage 40) can be removed more easily and in a shorter time. I can do it. As a result, after the two

blood vessels

100, 110 are sutured, the first sutured part 10, the second sutured part 20, and the body part 30 can be removed from the

blood vessels

100, 110 in a shorter time.

The first passages 11 may be provided at intervals in the circumferential direction of an imaginary closed line, and may intersect with the imaginary closed line. Further, each of the second passages 21 may be provided at intervals in the circumferential direction of an imaginary closed line, and may intersect with the imaginary closed line. The imaginary closed line is, for example, a line that is closed in the vertical direction (height direction) or around the axial direction of the first sutured portion 10 and the second sutured portion 20, in other words, in the vertical direction (height direction) of the trunk 30. It is a closed line around the axial direction) or the axial direction. Further, each first passage 11 may extend in a direction different from that of the adjacent first passage 11. Further, each second passage 21 may extend in a direction different from that of the adjacent second passage 21. In addition, each first passage 11 and each second passage 21 located nearby, in other words, each first passage 11 and each second passage adjacent to each other when viewed from the direction in which the first sutured portion 10 and the second sutured portion 20 face each other. The passages 21 may extend in different directions. Furthermore, when viewed from the direction in which the first sutured portion 10 and the second sutured portion 20 oppose each other, one of the first passage 11 and the second passage 21 may extend between the other adjacent passage.

According to this, the two

blood vessels

100 and 110 can be sutured together more reliably through the openings on these sides.

It is preferable that the angle between the extending direction of each first passage 11 and the tangent at the intersection with the imaginary closed line is the same. Moreover, it is preferable that the angle between the extending direction of each second passage 21 and the tangent at the intersection with the imaginary closed line is the same. Further, the angles of each first passage 11 and each second passage 21 may be the same angle.

According to this, when suturing the

blood vessels

100 and 110, the angles of the suture thread 200 with respect to the

openings

102 and 112 of the

blood vessels

100 and 110 are approximately the same in the circumferential direction of the

openings

102 and 112 of the

blood vessels

100 and 110. Therefore, the two

blood vessels

100 and 110 can be sutured more reliably and neatly at the openings on these sides.

Additionally, the virtual closed line may be a circle.

According to this, the two

blood vessels

100 and 110 can be sutured more neatly and reliably at the openings on these sides.

Each first passage 11 may be point symmetric with respect to a predetermined target point. The predetermined target point is a predetermined point on the surface of the first sutured portion 10 that faces the second sutured portion 20, and is, for example, the center of the surface. Moreover, each first passage 11 is located at the end of each of the first sutured parts 10 that is reversed at the end of two adjacent first passages 11 when viewed from the direction in which the first sutured part 10 and the second sutured part 20 oppose each other. The ends of one passage 11 may be arranged so as to overlap. Further, the second sutured portion 20 is the same as the first sutured portion 10, and the first sutured portion 10 and the second sutured portion 20 are inverted with respect to one so that the target points overlap in opposite directions. It may also be attached to and detached from the trunk 30.

According to this, the first suture portion 10 and the second suture portion 20 are the same, so the manufacturing cost of the suture aid 1 can be suppressed. Further, the two

blood vessels

100 and 110 can be sutured more neatly and reliably through these side openings.

The body portion 30 may include a body 36 and a plurality of arm portions 37 extending from the body 36 in a direction substantially perpendicular to the direction in which the first seam portion 10 and the second seam portion 20 oppose each other. . Further, the third passage 31 may be provided in the arm tip 37b on the tip side of the arm 37, and in the arm 37 or the body 36 on the opposite side of the arm tip 37b in the direction in which the arm extends. good.

According to this, after passing the suture thread 200 through the suture thread passage 50, it becomes easy to take out the trunk 30 from between the two

blood vessels

100, 110 and the suture thread 200 passed through them.

The introduction path 40 and the exit path 40 are preferably provided in the body 30, and it is more preferable that one end of these is provided on the distal end surface of the arm distal end portion 37b.

According to this, when the suturing aid 1 is attached to the two

blood vessels

100, 110, the trunk 30 is exposed from the two

blood vessels

100, 110, so it becomes easier to insert the suture thread 200 into the introduction path 40, and It becomes easier to take out the suture thread 200 coming out of the lead-out path 40. As a result, it becomes easier to ligate the end of the suture thread 200 that enters the introduction path 40 and the end that exits from the exit path 40. Furthermore, if one end of the introduction path 40 and the one end of the exit path 40 is provided on the tip end face of the arm tip portion 37b, the entrance of the introduction path 40 and the exit of the exit path 40 are closer to the outside, so this becomes even more so.

The introduction path 40 may communicate with one of a pair of adjacent first passages 11 and second passages 21. Moreover, the lead-out path 40 may communicate with the other of the first passage 11 and the second passage 21 in this pair of adjacent passages. In this case, each third passage 31 substantially communicates with the first passage 11 and the second passage 21 located in the vicinity other than this pair.

According to this, the suture thread 200 sent from the introduction path 40 to the suture thread passage 50 can be sent out from the lead-out path 40 more reliably.

It is preferable that the first passage 11, the second passage 21, the third passage 31, the introduction passage 40, and the output passage 40 are grooves.

According to this, the opening of the groove becomes the thread removal section 80, and each passage and the thread removal section 80 can be constructed easily and at low cost.

The bottoms of the first passage 11 and the second passage 21 are preferably curved in a convex shape toward the inner side of the groove.

According to this, when passing the suture thread 200 through the suture thread passage 50, the suture thread 200 can be passed through the first passage 11 and the second passage 21 even more smoothly.

In the first passage 11 and the second passage 21, both longitudinal ends of the groove and the bottoms of the grooves connected to the both ends become

passage bodies

12 and 22 whose groove width increases. It is preferable that the

passage bodies

12 and 22 of the passage 11 and the second passage 21 substantially communicate with each other at their ends.

According to this, when feeding the suture thread 200 into the suture thread passage 50, the suture thread 200 can be passed through the first passage 11 and the second passage 21 even more smoothly.

The first passage 11 and the second passage 21 each include a movement restriction part 60 that restricts movement of the suture thread 200 passed through the passage from the thread removal part 80 to the outside of the passage. It may also be possible to remove restrictions on movement. The restriction of the movement restriction section 60 may be lifted by any method as long as the restriction on movement of the suture thread 200 can be canceled, and examples thereof include removal or cutting of the movement restriction section 60.

According to this, it is possible to restrict the suture thread 200 passed through the first passage 11 and the second passage 21 from moving outside the passage (outside) from the thread removal section 80. The suture thread 200 passed through 21 can be prevented from coming off the passage. In addition, by releasing the restriction on movement of the suture thread 200 by the movement restriction section 60, the suture thread 200 passed through the first passage 11 and the second passage 21 can be moved from the side of the first passage 11 and the second passage 21. In other words, since they can be removed from the thread removal section 80, the first suture section 10 and the second suture section 20 can be taken out from the two

blood vessels

100, 110 and the suture thread 200 passed through them.

The movement regulating section 60 is preferably a linear body that can be cut and crosses the thread removal section 80 or the vicinity of the thread removal section 80 of the first passage 11 and the second passage 21, respectively. Further, it is preferable that the groove crosses the vicinity of one end and the vicinity of the other end of each of the first passage 11 and the second passage 21 in the passage direction.　

According to this, the movement restriction section 60 can be configured with a simple configuration. Further, the suture thread 200 can be smoothly passed through the first passage 11 and the second passage 21. Furthermore, the restriction on movement of the suture thread 200 by the movement restriction section 60 can be easily released.

The first sutured portion 10 and the second sutured portion 20 may each have one or more regulating passages 70 that are approximately closed (approximately annular) passages. Further, the regulation passage 70 of the first sutured part 10 is provided so as to cross the thread removal part 80 of each first passage 11 or the vicinity of the thread removal part 80, and the regulation passage 70 of the second sutured part 20 is provided so as to cross the thread removal part 80 of each first passage 11 or the vicinity of the thread removal part 80. It may be provided so as to cross the thread removal section 80 of the passage 21 or the vicinity of the thread removal section 80. The regulation passage 70 preferably crosses the vicinity of one end and the vicinity of the other end of each of the first passage 11 and the second passage 21 in the passage direction. The movement regulating portion 60 may be endlessly passed through the regulating passage 70 across each first passage 11 or each second passage 21. For example, the regulation passage 70 may be configured with two substantially closed passages, a passage that crosses near one end of each first passage 11 and each second passage 21 in the passage direction, and a passage that crosses near the other end. Moreover, the regulation passage 70 may be one substantially closed passage that crosses the vicinity of both ends of each first passage 11 and each second passage 21 in the passage direction.

In this case, the movement regulating part 60 (linear body) is sent from one side of the part of the regulating passage 70 that crosses the first passage 11 or the second passage 21, and the end of the movement regulating part 60 on the sending side and the passage are fed. By tying the other end of the traversing portion to the end on the side to be sent out, the movement regulating portion 60 can be made to cross the first passage 11 or the second passage 21 and become endless within each regulating passage 70. can.

According to this, the suture thread 200 can be smoothly passed through the first passage 11 and the second passage 21. Furthermore, the movement regulating portion 60 can be constructed for each of the plurality of first passages 11 and the plurality of second passages 21, and if the movement regulating portion 60 is cut, the movement of the suture thread 200 can be collectively restricted. Therefore, the movement restriction section 60 can be constructed and canceled easily and in a short time.
Moreover, if each of the regulation passages 70 of the first sutured part 10 and the second sutured part 20 is made into one substantially closed passage, construction of the movement restriction part 60 and release of the restriction can be made easier and in a shorter time. be able to.

In the direction in which the first sutured portion 10 and the second sutured portion 20 substantially face each other, the first sutured portion 10, the second sutured portion 20, and the body portion 30 may include

penetration portions

13, 23, and 33 that penetrate therethrough. .

According to this, when attaching the first suture section 10, the second suture section 20, and the body section 30 to the

blood vessels

100, 110, or when removing them from the

blood vessels

100, 110, the penetration section , 23, 33 can be grasped or hung on the

penetration parts

13, 23, 33, so that the first sutured part 10, the second sutured part 20, and the body part 30 can be attached to the

blood vessels

100, 110, and the blood vessels 100 can be attached. , 110 can be removed more easily and in a shorter time. Further, according to this, the volumes of the first suture section 10, the second suture section 20, and the body section 30 can be reduced, so that the manufacturing cost of the suture aid 1 can be reduced.

Furthermore, the opposing surfaces of the first sutured portion 10 and the second sutured portion 20 may be, for example, flat surfaces. Further, the surface of the body portion 30 that faces the first stitched portion 10 and the second stitched portion 20, that is, the surface on which the first stitched portion 10 and the second stitched portion 20 are attached and detached, may be a flat surface. Furthermore, among the opposing surfaces of the first stitched portion 10 and the second stitched portion 20 and the body portion 30, the surface that faces the first stitched portion 10 and the second stitched portion 20 is The two stitched portions 20 may be perpendicular to opposing directions.

<Example of the first embodiment>
The suturing aid 1 of the example of the first embodiment includes a first suturing part 10, a second suturing part 20, and a body part 30, as shown in FIGS. 1 and 2.

As shown in FIGS. 1 to 3, the first sutured portion 10 has a shape like a sphere cut into two parallel surfaces, and the upper surface is a substantially circular flat surface. The first sutured part 10 is provided with a through part 13 that is a hole that penetrates in the vertical direction (first direction) centering on the axis thereof. The penetrating portion 13 has a circular cross section and a shape in which the hole expands downward in a curved manner. On the upper surface of the first stitched portion 10, four protruding portions 14 that protrude upward are provided around the penetration portion 13 as attachment/detachment portions for attaching and detaching the first stitched portion 10 to and from the body portion 30. Each of the protrusions 14 has a cylindrical shape, and is arranged at a predetermined pitch of 90° on the circumference of an imaginary circle centered on the center of the upper surface of the first sutured portion 10 (the axis of the first sutured portion 10). It is set on a pitch. For convenience of explanation, each protrusion 14 is assumed to be located on the front, rear, right and left sides of the center of the upper surface of the first sutured section 10.

As shown in FIGS. 2 and 3, four first passages 11 are provided on the upper surface of the first sutured portion 10. Each first passage 11 is a groove extending linearly. The first passages 11 are provided at equal intervals in the circumferential direction (around the vertical direction) of a virtual circle (virtual closed line) centered on the center of the upper surface of the first sutured portion 10, when viewed from the vertical direction. It is being Further, each first passage 11 is provided so as to intersect with an imaginary circle. Further, each first passage 11 has the same angle with the tangent to the virtual circle at the intersection with the virtual circle. Here, each first passage 11 is inclined with respect to the front-rear direction and the left-right direction. Further, the extending directions of the adjacent first passages 11 differ by 90° around the center of the upper surface of the first sutured portion 10 (the axis of the first sutured portion 10). Further, each of the first passages 11 is arranged point-symmetrically with respect to the center of the upper surface of the first sutured portion 10 (the axis of the first sutured portion 10). Note that the imaginary circle regarding the first passage 11 is concentric with the imaginary circle regarding the protrusion 14, and has a larger diameter than this.

As shown in FIGS. 3(C) and 4, each first passage 11 is a groove and includes a passage main body 12 and a thread removal part 80. The passage main body 12 includes both ends of the groove and a bottom portion of the groove connected to both ends, and the groove width is wider than other parts. The passage main body 12 has a substantially circular cross-sectional shape. The passage main body 12 is curved in a convex shape toward the inner side of the groove. The passageway body 12 serves as a passageway through which the suture thread 200 is fed. The thread removal part 80 is a part of the groove surrounded by the passage main body 12, is connected to the side of the passage main body 12 and the outside, and has a groove width narrower than the passage main body 12. The thread removal section 80 can also be regarded as a slit provided on the side of the passage main body 12. During suturing of

blood vessels

100, 110, suture thread 200 is passed through channel body 12. The suture thread 200 passed through each of the first passages 11 can be removed from the thread removal section 80, or in other words, from the side of the passage main body 12 to the outside of the passage without taking it in or out from the end of the passage main body 12 in the passage direction. can.

As shown in FIG. 5, two regulating passages 70 are provided inside the first sutured portion 10. One of the regulation passages 70 is a substantially closed passage (a substantially annular passage) that crosses the vicinity of the outer (outward) end of each first passage 11 in the passage direction of the passage main body 12 . The other regulation passage 70 is a substantially closed passage (approximately annular passage) that crosses near the inner (inner) end of each first passage 11 in the passage direction of the passage main body 12 . Further, each regulation passage 70 crosses each first passage 11 near the thread removal section 80, in other words, near the side edge of the passage main body 12. A movement regulating portion 60, which is an endless cuttable linear body, passes through each regulating passage 70. Here, as the movement regulating portion 60, a cuttable fiber thread is used. The movement regulating part 60 (linear body) is fed in from one of the parts of the regulating passage 70 that crosses the first passage 11, and the feeding side end of the movement regulating part 60 and the part of the regulating passage 70 that crosses the first passage 11 are connected. By tying the ends sent out from the other end, the movement regulating section 60 can be made endless within the regulating passage 70.

The regulation passage 70 crosses the first passage 11 at or near the thread removal part 80, and the movement regulation part 60 is passed through this, thereby ensuring that the suture thread 200 is placed in the first passage 11 (passage body 12). And it can be passed smoothly. Further, by providing the movement regulating section 60, the suture thread 200 passed through each of the first passages 11 cannot move out of the passage from the thread removal section 80. The suture thread 200 passed through the suture thread 200 can be prevented from coming off the first passage 11. Furthermore, if each movement regulating section 60 is cut, the regulation of the suture threads 200 passed through each of the first passages 11 is released all at once, and the suture threads 200 passed through each of the first passages 11 are removed from each of the first passages 11. It becomes possible to remove the thread from the thread removal section 80 without taking it in or out from the end in the path direction.

As shown in FIG. 6, the regulation passage 70 and the movement regulation part 60 are formed into one substantially closed structure that extends near both ends of the first passage 11 in the passage direction of the passage main body 12 inside the first sutured part 10. It may also be a circular passageway (approximately annular passageway). Further, the movement regulating portion 60 may be an endless cuttable linear body passed through the regulating passage 70. The movement regulating portion 60 is a fiber thread similarly to the above. By forming the restriction passage 70 and the movement restriction part 60 in such a manner, the movement restriction part 60 can also be made to cross the vicinity of both ends of each first passage 11. According to this example, since there is one restriction passage 70 and one movement restriction part 60, the movement restriction part 60 is constructed within the restriction passage 70, and the suture thread passed through the first passage 11 by the movement restriction part 60. 200 restrictions can be lifted more efficiently.

The movement regulating section 60 may regulate the movement of the suture thread 200 passed through the first passage 11 so that it does not come off the thread removal section 80 of the first passage 11, and may be capable of releasing the regulation. It can be anything. For example, the movement restriction section 60 may not provide the restriction passage 70 and may directly span the cuttable linear body or the like over the first passage 11 near both ends of the first passage 11; 11 may be a removable lid.

The second suture section 20 shown in FIGS. 1, 2, and 7 includes a penetrating section 23, a protruding section 24, a second passage 21, a regulating passage 70, and a movement regulating section 60. The second sutured portion 20 is the same as the first sutured portion 10, and a description thereof will be omitted here. The second passage 21 corresponds to the first passage 11. When attached to the torso 30, which will be described later, the second stitched portion 20 corresponds to the first stitched portion 10 reversed in the front-back direction or the left-right direction. Therefore, FIG. 7(C) showing the bottom surface of the second stitched portion 20 is line symmetrical in the front-back direction or the left-right direction with respect to FIG. 3(C) showing the top surface of the first stitched portion 10.

As shown in FIGS. 1, 2, and 8, the body portion 30 has a flat top and bottom surface, and includes a body 36 and a plurality of arm portions 37. The body 36 is composed of four edges whose outer edges are connected at right angles when viewed from the top and bottom direction (height direction). Each outer edge of the body 36 has a shape in which two parallel, offset sides are connected. The body 36 is provided with a through portion 33 that is a hole that penetrates in the vertical direction centering on the axis. The penetrating portion 33 of the body 36 has a circular cross section. Further, the diameter of the penetrating portion 33 of the body 36 is approximately the same as the diameter of the penetrating

portions

13 and 23 on the top surface of the first seam portion 10 and the bottom surface of the second seam portion 20.

The body 36 is provided with four attachment/detachment holes 34, which are holes penetrating in the vertical direction, around the penetration part 33 as attachment/detachment parts for attaching/detaching the first stitched part 10 and the second stitched part 20 to/from the body 30. It is being Each attachment/detachment hole 34 has a circular cross section, and each of the

protrusions

14 and 24 of the first sutured portion 10 and the second sutured portion 20 are inserted thereinto and fitted together. Further, each attachment/detachment hole 34 is formed at an angle of 90° on the circumference of an imaginary circle centered on the axis of the body 36 so that the

protrusions

14, 24 of the first suture portion 10 and the second suture portion 20 can be attached and detached. It is set on a pitch. It is assumed that each attachment/detachment hole 34 is located at the front, rear, left and right sides of the axis of the body 36.

By fitting each protrusion 14 of the first sutured part 10 into each attachment/detachment hole 34 from below the body part 30 and fitting each protrusion 24 of the second suture part 20 into each attachment/detachment hole 34 from above the body part 30, As shown in FIG. 1, the first suture section 10 and the second suture section 20 are coaxially attached to the trunk section 30. Each protrusion 14 of the first sutured portion 10 and each protrusion 24 of the second sutured portion 20 may be fitted into any attachment/detachment hole 34 . In other words, the first suture section 10 and the second suture section 20 can be attached to the trunk section 30 by rotating multiples of 90 degrees about the axis thereof. The first suture section 10 and the second suture section 20 attached to the trunk 30 have a surface (top surface) where the first passage 11 is provided and a surface (bottom surface) where the second passage 21 is provided, and these surfaces are opposite to each other. Their centers (axes) overlap in the vertical direction. The first sutured portion 10, the second sutured portion 20, and the penetrating

portions

13, 23, 33 of the body portion 30 are flush with each other when the first sutured portion 10 and the second sutured portion 20 are attached to the body portion 30. This will be the next hole.
When the first stitched portion 10 and the second stitched portion 20 are pulled out from the body 30, the

protrusions

14 and 24 are removed from the attachment/detachment holes 34 and removed from the body 30.

Returning to the explanation of the body section 30, four arm sections 37 are provided. Each arm portion 37 includes an arm main body 37a and an arm tip portion 37b. Each arm main body 37a extends on an extension of the side peripheral surface (outer edge) of the body 30. Adjacent arm bodies 37a extend in different directions by 90 degrees. The arm tip portion 37b is provided at the tip of the arm body 37a. When the first sutured portion 10 and the second sutured portion 20 are attached to the body 30, a portion of the side circumferential surface of each arm body 37a and the body 36 connected thereto is connected to each first passage 11 or each arm body 37a. Along one longitudinal side of the second passage 21. Further, the arm tip portion 37b overlaps the outer (outer) end portions of the first passage 11 and the second passage 21, in other words, the outer (outer) passage

main bodies

12, 22. Further, the distal end surface of the arm distal end portion 37b is arranged to substantially follow the outer edges of the first sutured portion 10 and the second sutured portion 20 when viewed from the top and bottom directions.

As shown in FIGS. 2 and 8, the body portion 30 is provided with a plurality of third passages 31 around the vertical direction of the body portion 30 (around the outer circumferential surface (side circumferential surface)). Each third passage 31 is provided in the arm tip 37b and the body 36. The third passages 31 provided in the arm tip portions 37b are provided in three of the four arm tip portions 37b. Moreover, four third passages 31 provided in the body 36 are provided around the outer peripheral surface of the body 36. Each third passage 31 is a groove and includes a passage main body 32 and a thread removal part 80. The passage main body 32 is a portion through which the suture thread 200 is passed. The passage main body 32 passes through the arm tip 37b or the body 36 in the vertical direction. A thread removal section 80, which is an opening extending along the passage direction (vertical direction) of the passage main body 32, is provided on the side of the passage main body 32. The thread removal portion 80 of each third passage 31 provided in the body 36 is open in the direction in which the arm body 37a extends. The thread removal portions 80 of the third passage 31 provided in the arm tip portion 37b and the body 36 have openings facing each other in the direction in which the arm extends, except for a portion.

When the first sutured portion 10 and the second sutured portion 20 are attached to the trunk 30, the third passages 31 provided in the arm tip 37b are adjacent to each other (nearby) when viewed from above, as shown in FIG. The outer (outward) ends (ends of the passage bodies 12 and 22) of each of the first passages 11 and the second passages 21 in the passage direction overlap each other, and the passage bodies 32 The upper end is connected to the outer end of the second passage 21 , and the lower end of the passage main body 32 is connected to the outer end of the first passage 11 . Furthermore, when viewed from above, each of the third passages 31 provided in the body 36 is located at an inner (inward) end of each of the adjacent (nearby) first passages 11 and second passages 21 in the respective passage directions. The upper end of the passage main body 32 is connected to the inner end of the second passage 21, and the lower end of the passage main body 32 is connected to the inner end of the second passage 21. is connected to the inner end of the first passage 11 .

As shown in FIGS. 1, 2, and 8, the first arm tip 37b, which is not provided with the third passage 31, has an introduction path 40 for introducing the suture 200 and an introduction path 40 for introducing the suture 200. Two inlet/outlet passages 40 are provided, which serve as lead-out passages 40. Each inlet/outlet path 40 is a groove. One introduction/outlet passage 40 extends from the distal end surface of the arm distal end portion 37b to the upper surface, and the other extends from the distal end surface of the arm distal end portion 37b to the lower surface. A removal section 80 is provided. The thread removal section 80 is provided across the distal end surface and the upper or lower surface of the arm distal end section 37b. When the first sutured part 10 and the second sutured part 20 are attached to the body part 30, one of the introduction/outlet passages 40 has an end in the passage direction located at the outer end of the second passage 21 (the end of the passage main body 22). The other inlet/outlet passage 40 has its end in the passage direction connected to the outer end of the first passage 11 (the end of the passage main body 12). Both of the two inlet/outlet paths 40 can be used as the inlet path 40 and the outlet path 40, and if one is set as the inlet path 40, the other becomes the outlet path 40.

The materials of the first sewn portion 10, second sewn portion 20, body portion 30, and the structures provided thereon are not particularly limited, but may be, for example, synthetic resin.

When the first sutured part 10 and the second sutured part 20 are attached to the body part 30, one of the first sutured part 10 and the second sutured part 20 is reversed in the front-back direction or the left-right direction, or further in the up-down direction. This corresponds to rotation at a pitch of 90 degrees. The positional relationship among the first passage 11, the second passage 21, the third passage 31, and the introduction/outlet passage 40 is as shown in FIG. 9 when viewed from above. This positional relationship will be explained below based on a plan view. Adjacent first passages 11 have different passage directions (longitudinal directions). Further, each first passage 11 is point symmetrical with respect to the center of the upper surface of the first sutured portion 10 (the axis of the first sutured portion 10). Further, the adjacent second passages 21 also have different passage directions (longitudinal directions). Further, each second passage 21 is also point symmetrical with respect to the center of the bottom surface of the second sutured portion 20 (the axis of the second sutured portion 20). The first passage 11 and the second passage 21 extend between one adjacent passage. Moreover, the first passage 11 and the second passage 21 which are located in the vicinity (adjacent) extend in different directions. Each first passage 11 and each second passage 21 have their respective outer (outer) ends (ends of the passage bodies 12, 22) overlapping each other, and their respective inner (inner) ends (the passage bodies 12 and 22) overlap. One of the overlapping outer ends of each first passage 11 and each second passage 21 (the ends of the passage bodies 12 and 22) is the outer end of the first passage 11 (the end of the passage body 12). communicates with one introduction/outlet passage 40 , and the outer end of the second passage 21 (end of the passage main body 22 ) communicates with the other introduction/outlet passage 40 . Further, the remaining overlapping outer ends (passage bodies 12, 22) of each first passage 11 and each second passage 21 are connected via a passage body 32 of a third passage 31 extending in the vertical direction. . Further, the overlapping inner ends (passage bodies 12 and 22) of each first passage 11 and each second passage 21 are connected via a passage body 32 of a third passage 31. By connecting these two introduction/

outlet passages

40, 40 with the first passage 11 and second passage 21 which are adjacent therebetween via the third passage 31, one introduction/output passage 40 can be connected to the introduction passage 40. One suture passage 50 is a substantially continuous passage that extends meanderingly (windingly) around the body 30 in the vertical direction. It is formed.

Next, a method of using the suturing aid 1 of the example of the first embodiment will be described. First, as shown in FIG. 10(A), each side of each

blood vessel

100, 110 is incised using a scalpel or the like.

Next, as shown in FIG. 10(B), the first sutured portion 10 is inserted into the blood vessel 100 from the incised portion of one of the blood vessels 100, with the surface where the first passage 11 is provided (the upper surface) facing backward. and attach the first suture section 10 to the blood vessel 100. When the first suture section 10 is inserted into the blood vessel 100, the incised portion of the blood vessel 100 is expanded to form an opening 102. Further, the first suture section 10 is disposed within the blood vessel 100 such that each protrusion 14 is located within the opening 102 of the blood vessel 100 and each first passage 11 crosses the opening 102 of the blood vessel 100. The second suture section 20 is also attached to the other blood vessel 110 in the same manner as the first suture section 10.

Next, as shown in FIG. 10(C), the first suture section 10 and the second suture section 20 attached to each

blood vessel

100, 110 are attached to the trunk 30. This prepares the two

blood vessels

100, 110 to be sutured at the

openings

102, 112 provided on their respective sides.

Next, as shown in FIG. 10(C), the suture thread 200 with the needle 202 attached to its tip is fed into the suture thread passage 50 from one of the two introduction/

outlet passages

40, 40. Since the needle 202 passes the suture thread 200 through the meandering suture thread passage 50, a flexible linear needle is preferably used. Here, as such needle 202, a wire capable of penetrating the walls of

blood vessels

100 and 110 is used. Further, as the suture thread 200, a thread commonly used for suturing

blood vessels

100 and 110 is used. The length of needle 202 is preferably longer than suture channel 50, which is the length of needle 202 here. By setting the length of the needle 202 in this way, the needle 202 can be smoothly passed through the suture passage 50, and the needle 202 and the suture attached thereto can be fed out from one introduction/output passage 40 to the suture passage 50. The thread 200 can be reliably taken out from the other introduction/output path 40.

When the suture 200 with the needle 202 attached thereto is fed into the suture passage 50 from one of the introduction and exit passages 40, the suture 200 passes through the third passage 31 and into each of the first passages 11 and each of the suture passages 50, as shown in FIG. It passes through the two passages 21 alternately and is sent out from the other introduction/output passage 40. When the suture 200 is passed through the suture passage 50 in this manner, the suture 200 is passed inside and outside the

blood vessels

100, 110 while meandering around the edges of the

openings

102, 112 of the two

blood vessels

100, 110. . At this time, the suture thread 200 passed through each first passage 11 and each second passage 21 is prevented from coming out from the thread removal part 80 by the movement regulating part 60.

After threading the suture thread 200 through the suturing aid 1 as described above, the body portion 30 is first removed from the

blood vessels

100, 110 and the suture thread 200, and then the first suture section 10 and the second suture section 20 are removed.

To remove the body part 30, first, the first suture part 10 and the second suture part 20 attached to the

blood vessels

100 and 110 are pulled out and removed from the body part 30, and the sutures are removed from each third passage 31 and each introduction/output passage 40. Remove thread 200. The suture thread 200 passed through each third passage 31 and each introduction/output passage 40 can be removed from the thread removal portion 80 (groove opening) of each third passage 31 and each introduction/output passage 40. Next, the trunk 30 is removed from between the suture 200 passed between the two

blood vessels

100 and 110.

To remove the first suture section 10 and the second suture section 20, first, the movement restriction section 60 is cut, the movement restriction section 60 is removed from the restriction passage 70, and the restriction of the suture thread 200 by the movement restriction section 60 is released. When the restriction of the suture thread 200 by the movement restriction part 60 is released, the suture thread 200 passed through each of the first passages 11 and the second passages 21 can be removed from the thread removal parts 80 (groove openings) of these passages. become able to. Next, the suture thread 200 passed through each of the first passage 11 and the second passage 21 is removed from the thread removal section 80 of these passages, and the suture thread 200 is passed between the

blood vessels

100, 110 and the two

blood vessels

100, 110. The first suture section 10 and the second suture section 20 are removed from between the suture threads 200. FIG. 12 shows a state in which the trunk 30, the first sutured part 10, and the second sutured part 20 are removed from the

blood vessels

100, 110 and the suture 200.

Next, by pulling both ends of the suture thread 200 with the needle 202 removed to tighten the two

blood vessels

100 and 110 and ligating the suture thread 200, the two

blood vessels

100 and 110 are attached to these sides, as shown in FIG. The provided

openings

102 and 112 are sutured together.

<Second embodiment>
The suturing aid 1 of the second embodiment is for suturing two

blood vessels

100 and 110 at their ends. The suturing aid 1 of the second embodiment includes a body portion 30, a first suturing portion 10, and a second suturing portion 20. The first stitched portion 10 is removably attached to the outer circumferential surface of the body portion 30. Further, the second stitched portion 20 is removably attached to the outer circumferential surface of the body portion 30, facing the first stitched portion 10. The first passage 11 is a passage through which the suture thread 200 can pass, and one or more first passages 11 are provided on the surface of the first suture section 10 that faces the outer circumferential surface of the body section 30. Further, the second passage 21 is a passage through which the suture thread 200 can pass, and one or more second passages 21 are provided on the surface of the second suture section 20 that faces the outer circumferential surface of the body section 30. Further, the third passage 31 is a passage through which the suture thread 200 can pass, and one or more third passages 31 are provided on the outer circumferential surface of the trunk 30. Further, the third passage 31 is a passage through which the suture thread 200 can pass, and one or more third passages 31 are provided on the outer peripheral surface of the trunk 30, and include one or more first passages 11 and one or more second passages. It includes passages 21 that approximately communicate with two adjacent passages. The first suture section 10, the second suture section 20, or the body section 30 is a passage for introducing the suture thread 200, and is an introduction passageway that communicates with the first passage 11, the second passage 21, or the third passage 31 and the outside. 40. Further, the first suture section 10, the second suture section 20, or the body section 30 is a passage for leading out the suture thread 200, and is connected to the first passage 11, the second passage 21, or the third passage 31 and the outside. A lead-out path 40 is provided. Further, the third passage 31 has its ends (both ends) connected to two adjacent passages among one or more of the first passages 11 , one or more of the second passages 21 , the inlet passage 40 and the outlet passage 40 . Contains a portion that approximately leads to the end. The first passage 11, the second passage 21, and the third passage 31 allow the suture thread 200 passed through the passages to be removed from the thread removal section 80. The suture thread 200 fed from the introduction path 40 passes through the first path 11 , the second path 21 , and the third path 31 . A suture thread passage 50 is formed which is a substantially continuous passage sent out from the lead-out passage 40 and extends spirally around a predetermined direction.

Among the above, two adjacent passages among one or more first passages 11 and one or more second passages 21 include two adjacent first passages 11, two adjacent second passages 21, and two adjacent passages. A first passage 11 and a second passage 21 that meet are included.

In the suturing aid 1, the body 30 is attached to each

blood vessel

100, 110 by inserting each end of the body 30 into the

blood vessel

100, 110 from the end of each

blood vessel

100, 110. Further, the first suture section 10 and the second suture section 20 are attached to the outer peripheral surface of the body section 30 attached to the

blood vessels

100 and 110 so as to face each other. When the suture thread 200 for suturing the

blood vessels

100 and 110 is fed through the introduction path 40 with the first suture section 10 and the second suture section 20 attached to the torso section 30, the suture thread 200 is passed through the suture passage 50 to the torso section. It is passed spirally around the outer periphery (side circumference) of the blood vessel 30, straddles the ends of the two

blood vessels

100 and 110, and stitches the inside and outside of the two

blood vessels

100 and 110, and is sent out from the lead-out path 40. Furthermore, the first passage 11, the second passage 21, and the third passage 31 allow the suture thread 200 passed through the passages to be removed from the thread removal section 80, and the introduction passage 40 and the outlet passage 40 Since it is possible to remove the suture 200 from the passage by pulling the suture 200 passed through the passage in the direction of the passage, after passing the suture 200 through the two

blood vessels

100 and 110, the first suture The section 10, the second suture section 20 and the body section 30 can be removed from the two

blood vessels

100, 110 and the suture 200 threaded between them.

According to this, two

blood vessels

100 and 110 can be sutured at their ends simply by feeding one suture thread 200 into the suture thread passage 50, so it can be done easily and in a short time regardless of the skill of the operator. Thus, the two

blood vessels

100 and 110 can be reliably sutured at their ends.

The first passage 11 and the second passage 21 are provided at intervals along the circumferential direction of the outer circumferential surface of the body 30, and the third passage 31 is provided at intervals in the circumferential direction of the outer circumferential surface of the body 30. May be provided.

According to this, the ends of the two

blood vessels

100, 110 can be sewn together in the circumferential direction using the suture thread 200, so that the two

blood vessels

100, 110 can be sutured at these ends more reliably and neatly. I can do it.

The first passage 11, the second passage 21, and the third passage 31 may intersect a virtual plane perpendicular to the outer circumferential surface of the body portion 30 at a predetermined position. In this case, the predetermined position may be the center of the trunk 30 (the center in the longitudinal direction of the trunk 30).

According to this, the suture thread 200 can be reliably passed through the ends of the two

blood vessels

100, 110, so the two

blood vessels

100, 110 can be sutured at these ends more reliably and neatly.

The first passage 11 and the second passage 21 may extend in substantially parallel directions.

According to this, the directions in which the suture thread 200 is passed through the two

blood vessels

100 and 110 are aligned, so that the two

blood vessels

100 and 110 can be sutured more neatly.

The introduction path 40 is a through hole that penetrates the first sutured part 10 or the second sutured part 20, and the lead-out path 40 is a through hole that penetrates the first sutured part 10 or the second sutured part 20. 40 and the first passage 11 or the second passage 21 adjacent thereto, the third passage 31 communicates with the outlet passage 40 and the first passage 11 or the second passage 21 adjacent thereto. good. Further, it is preferable that the ends of the introduction path 40 and the exit path 40 that communicate with the outside are provided on the surface of the first sutured portion 10 or the second sutured portion 20 that is exposed to the outside.

According to this, it is possible to more reliably feed the suture thread 200 from the introduction path 40 to the suture thread path 50 and to send the suture thread 200 out from the lead-out path 40, and also to remove the suture thread 200 from the introduction path 40 and the lead-out path 40. be able to. Furthermore, by providing the ends of the introduction path 40 and the exit path 40 that communicate with the outside on the outer surface of the first sutured portion 10 or the second sutured portion 20, it becomes easier to insert and remove the suture thread 200 into and out of the suture passageway 50.

The introduction path 40 and the exit path 40 may include a thread removal section 80 that can remove the suture thread 200 passed through the path to the outside from the side of the path.

According to this, the suture thread 200 passed through the suture thread passage 50 (introduction passage 40, first passage 11, second passage 21, third passage 31, and lead-out passage 40) can be removed more easily and in a shorter time. be able to.

In one of the first sutured portion 10 and the second sutured portion 20, one of the other first passage 11 or second passage 21 may be replaced with the introduction passage 40 and the output passage 40.

According to this, the manufacturing cost of the suturing aid 1 can be suppressed.

It is preferable that the first passage 11, the second passage 21, and the third passage 31 are grooves.

In the longitudinal direction of the first passage 11, the second passage 21, and the third passage 31, the bottoms of the grooves are preferably curved in a convex shape toward the inner side of the grooves.

According to this, when passing the suture thread 200 through the suture thread passage 50, the suture thread 200 can be passed through the first passage 11, the second passage 21, and the third passage 31 even more smoothly.

The first passage 11, the second passage 21, and the third passage 31 have

passage bodies

12, 22, and 32 whose groove widths are widened at both ends in the longitudinal direction and at the bottoms of the grooves connected to these ends. 11, the second passage 21, and the third passage 31 are preferably substantially in communication at the ends of the

passage bodies

12, 22, and 32.

According to this, when feeding the suture thread 200 into the suture thread passage 50, the suture thread 200 can be passed through the first passage 11, the second passage 21, and the third passage 31 even more smoothly.

The first passage 11, the second passage 21, and the third passage 31 each include a movement restriction part 60 that restricts movement of the suture thread 200 passed through the passage from the thread removal part 80 to the outside of the passage. , it may be possible to release the restriction on movement of the suture thread 200. The restriction of the movement restriction section 60 may be lifted by any method as long as the restriction on movement of the suture thread 200 can be canceled, and examples thereof include removal or cutting of the movement restriction section 60.

According to this, movement of the suture thread 200 passed through the first passage 11, the second passage 21, and the third passage 31 from the thread removal part 80 to the outside of the passage (outside) is regulated. , the suture thread 200 passed through the second passage 21 and the third passage 31 is prevented from coming off from the passage, and the suture thread 200 is passed through the first passage 11, the second passage 21, and the third passage 31 more reliably and smoothly. Can pass. In addition, by releasing the restriction on movement of the suture thread 200 by the movement restriction section 60, the suture thread 200 passed through the first passage 11, the second passage 21, and the third passage 31 can be moved from the side of each passage. Since they can be removed from the thread removal section 80 of each passage, the first suture section 10, the second suture section 20, and the body section 30 can be taken out from the two

blood vessels

100, 110 and the suture thread 200 passed through them. It becomes possible.

The movement restricting part 60 is a linear body that can be cut, and is located at or near the thread removing part 80 of the first passage 11, the second passage 21, and the third passage 31. One that crosses the passage 21 and the third passage 31 is preferred. Further, the position where the movement restricting portion 60 crosses the first passage 11, the second passage 21, and the third passage 31 is preferably near the end (opening) of each passage in the passage direction.

The first sutured portion 10, the second sutured portion 20, and the body portion 30 may each have one or more regulating passages 70, which are approximately closed (approximately annular) passages, inside each of them. Further, the regulation passage 70 of the first sutured part 10 is provided so as to cross the thread removal part 80 of each first passage 11 or the vicinity of the thread removal part 80, and the regulation passage 70 of the second sutured part 20 is provided so as to cross the thread removal part 80 of each first passage 11 or the vicinity of the thread removal part 80. The regulating passage 70 of the trunk section 30 is provided to cross the thread removing part 80 of each third passage 31 or the vicinity of the thread removing part 80. It's okay to be hit. The regulation passage 70 preferably crosses the vicinity of one end and the vicinity of the other end of the first passage 11, the second passage 21, and the third passage 31 in the passage direction. Even if the regulation passage 70 crosses one passage of the first passage 11, the second passage 21, and the third passage 31, it crosses a plurality of passages of the first passage 11, the second passage 21, and the third passage 31. It may be something that crosses. Further, the movement restriction section 60 may be endlessly passed through each restriction passage 70 across the first passage 11, the second passage 21, or the third passage 31.

In this case, the movement regulating section 60 (linear body) is fed from one side of the portion of the regulating passage 70 that crosses the first stitching section 10, the second stitching section 20, and the body section 30, and the movement regulating section 60 is fed from the feeding side of the movement regulating section 60. By tying the end of the section and the end of the section that is sent out from the other side of the passage, the movement regulating section 60 can be moved across the first stitched section 10, the second stitched section 20, or the body section 30, and each The regulating passage 70 can be made endless.

According to this, the suture thread 200 can be smoothly passed through the first passage 11, the second passage 21, and the third passage 31. Furthermore, the movement regulating section 60 can be constructed for each of the first passage 11, the second passage 21, and the third passage 31, and if the movement regulating section 60 is cut, the movement of the suture thread 200 can be controlled at once. Since the restriction can be canceled, the movement restriction section 60 can be constructed and canceled easily and in a short time. Moreover, if the regulation passage 70 is one substantially closed passage that crosses both ends of all the passages in the passage direction for each of the first passage 11, the second passage 21, or the third passage 31, the first passage 11, the third passage 31, One movement regulating section 60 for each of the second passage 21 and the third passage 31 can collectively regulate the movement of the suture thread 200 in that passage, and if the movement regulating part 60 is cut, the movement of the suture thread 200 in that passage can be restricted at once. Since the restriction on the suture thread 200 can be released, construction of the movement restriction section 60 and removal of the restriction can be performed more easily and in a shorter time.

The body portion 30 may include a penetrating portion 33 that penetrates the body portion 30 in a direction substantially parallel to the outer circumferential surface of the body portion 30.

According to this, the volume of the body portion 30 can be reduced, so the manufacturing cost of the suturing aid 1 can be reduced.

The inner circumferential surfaces of the first stitched portion 10 and the second stitched portion 20 may have a shape that matches (follows) the outer circumferential surface of the trunk portion 30. Further, the outer circumferential surface of the body portion 30 may have a substantially circular cross section.

<Example of second embodiment>
The suturing aid 1 of the example of the second embodiment includes a body section 30, a first suture section 10, and a second suture section 20, as shown in FIGS. 14 and 15.

As shown in FIGS. 14 to 16, the body 30 has a cylindrical shape, and the inside thereof has a through portion 33 that penetrates in the vertical direction. The penetrating portion 33 has a circular cross section, and has a shape in which the hole gradually narrows toward the center in the vertical direction.

Four protrusions 35 protruding from the outer peripheral surface are provided on the outer peripheral surface (side peripheral surface) of the trunk portion 30 as attachment/detachment portions for attaching and detaching the first stitched portion 10 and the second stitched portion 20. Each of the protrusions 35 has a substantially cylindrical shape, and is provided on the outer circumferential surface of the body 30 at a pitch of 90° around the outer circumference of the body 30, in the front, back, left and right of the center of the body 30.

As shown in FIGS. 14, 15, and 17, the first suture section 10 has a semi-cylindrical shape and is approximately at the same height as the trunk section 30. The outer circumferential surface of the first sutured portion 10 is curved so as to swell outward in the vertical direction. Further, the inner circumferential surface of the first stitched portion 10 is curved so as to fit (along) the outer circumferential surface of the trunk portion 30 . An attachment/detachment hole 15 is provided on the inner circumferential surface of the first stitched portion 10 as a detachable portion for attaching/detaching the first stitched portion 10 to/from the body portion 30. ing. Further, at both circumferential ends of the first sutured portion 10, recessed portions 16 are provided as removable portions, into which the vertical half of the protruding portion 35 of the body portion 30 is fitted.

As shown in FIGS. 15 and 17, two first passages 11 are provided on the inner circumferential surface of the first sutured portion 10 at intervals in the circumferential direction of the inner circumferential surface. Each of the first passages 11 is a groove and extends substantially parallel to each other. Furthermore, each of the first passages 11 is inclined at the same angle with respect to the circumferential direction and the vertical direction of the inner circumferential surface of the first sutured portion 10, respectively. Each first passage 11 includes a passage main body 12 and a thread removal section 80, similar to the example of the first embodiment. Similar to the example of the first embodiment, the passage main body 12 includes both ends of the groove and the bottom portion of the groove connected to the both ends, and the groove width is wider than the other portions. The passage main body 12 has a substantially circular cross-sectional shape. The passage main body 12 is curved in a convex shape toward the inner side of the groove. The passageway body 12 serves as a passageway through which the suture thread 200 is fed. The thread removal part 80 is a part of the groove surrounded by the passage main body 12, is connected to the side of the passage main body 12 and the outside, and has a groove width narrower than that of the passage main body 12. The thread removal section 80 can also be regarded as a slit provided on the side of the passage main body 12. When suturing

blood vessels

As shown in FIGS. 17(E) and 19(A), inside the first sutured portion 10, there is a substantially closed passage (approximately annular passage) that crosses the vicinity of both ends of the passage main body 12 of each first passage 11. ) is provided. The regulation passage 70 crosses each first passage 11 near the thread removal part 80, in other words, near the side edge of the passage main body 12. A movement regulating portion 60 that is an endless cuttable linear body passes through the regulating passage 70 . Here, as the movement regulating portion 60, a cuttable fiber thread is used. The movement regulating part 60 (linear body) is fed in from one of the parts of the regulating passage 70 that crosses the first passage 11, and the feeding side end of the movement regulating part 60 and the part of the regulating passage 70 that crosses the first passage 11 are connected. By tying the ends sent out from the other end, the movement regulating section 60 can be made endless within the regulating passage 70.

The regulation passage 70 crosses the first passage 11 at or near the thread removal part 80, and the movement regulation part 60 is passed through this, thereby ensuring that the suture thread 200 is placed in the first passage 11 (passage body 12). And it can be passed smoothly. Further, by providing the movement regulating section 60, the suture thread 200 passed through each of the first passages 11 cannot move out of the passage from the thread removal section 80. The suture thread 200 passed through can be restricted from coming off the first passage 11. Furthermore, if each movement regulating section 60 is cut, the regulation of the suture threads 200 passed through each of the first passages 11 is released all at once, and the suture threads 200 passed through each of the first passages 11 are removed from each of the first passages 11. It becomes possible to remove the thread from the thread removal section 80 without pulling it out from the end in the path direction.

The second suture section 20 shown in FIGS. 15 and 18 includes an attachment/detachment hole 25, a recess 26, a second passage 21 having a passage main body 22, a regulation passage 70, and a movement regulation part 60. The second suture section 20 is different from the first suture section 10 in that one of the two first passages 11 is replaced with an introduction/output passage 40 through which the suture thread 200 enters and exits, and that the number of passages crossed by the regulation passage 70 is different. They are the same except for There is one second passage 21, which corresponds to the other of the two first passages 11.

Compared to the first sutured part 10, the introduction/outlet passage 40 of the second sutured part 20 is provided in place of one of the two first passages 11. Two inlet/outlet paths 40 are provided. Each introduction/outlet path 40 is a hole that penetrates from the outer circumferential surface to the inner circumferential surface of the second sutured portion 20. Explaining the introduction/outlet passage 40 of the second sutured part 20 in terms of the first sutured part 10 , the end on the inner circumferential surface side of one of the introduction/outlet passages 40 is located at one end of the passage main body 12 of the first passage 11 that replaces the introduction/output passage 40 . The end is provided at a certain position, and the end on the inner peripheral surface side of the other introduction/outlet passage 40 is provided at a position where the other end of the other passage main body 12 of the first passage 11 replacing the introduction/output passage 40 is provided. It is being Both of the two inlet/outlet paths 40 can be used as the inlet path 40 and the outlet path 40, and if one is set as the inlet path 40, the other becomes the outlet path 40.

Inside the second sutured portion 20, as shown in FIG. 19(B), a regulating passage 70 is provided, which is a substantially closed passage (approximately annular passage) that crosses the vicinity of both ends of the passage main body 22 of each second passage 21. is provided. The regulation passage 70 crosses each second passage 21 near the thread removal section 80, in other words, near the side edge of the passage main body 22. A movement regulating portion 60 that is an endless cuttable linear body passes through the regulating passage 70 . The regulating passage 70 and the movement regulating section 60 of the second stitching section 20 are basically the same as those of the first stitching section 10.

The first suture section 10 is constructed by inserting the protruding part 35 of the body part 30 into the attachment/detachment hole 15, and inserting the vertical half of the protrusion part 35 adjacent to the protruding part 35 into each recess 16, so that the inner peripheral surface of the body part 30 is inserted into the recessed part 16. It is attached to the trunk 30 by aligning (along) the outer peripheral surface. The second stitched portion 20 is mounted on the trunk 30 in the same way as the first stitched portion 10, facing the first stitched portion 10 on the opposite side of the first stitched portion 10. The attachment/detachment holes 15 and 25 and the

recesses

16 and 26 of the first sutured portion 10 and the second sutured portion 20 may be attached to any of the protrusions 35. In other words, the first stitched portion 10 and the second stitched portion 20 can be attached to the front and back of the trunk 30 as well as to the left and right sides. As shown in FIG. 14, when the first sutured part 10 and the second sutured part 20 are attached to the torso 30, the outer peripheral surface of the torso 30 is covered by the first sutured part 10 and the second sutured part 20. . In addition, the first passage 11, the second passage 21, and the introduction/outlet passage 40 are connected to the inner circumferential surface of the first sutured portion 10 and the second sutured portion 20 (the outer circumferential surface of the body portion 30), as shown in FIG. 20(A). are provided at equal intervals in the circumferential direction. Note that FIG. 20(A) is a plan view of the inner circumferential surfaces of the first sutured portion 10 and the second sutured portion 20 viewed from the outside in the horizontal direction toward the center of the body portion 30, so that 19, it is inverted.
When the first sutured portion 10 and the second sutured portion 20 are pulled out from the body 30, the attachment/detachment holes 15, 25 and the

respective recesses

16, 26 are disengaged from the protrusion 35, and are removed from the body 30.

Returning to the description of the body part 30, as shown in FIGS. 15 and 16, third passages 31 are provided at equal intervals in the circumferential direction (side circumferential direction) on the outer circumferential surface (side circumferential surface) of the body part 30. There are four available. Each third passage 31 is a groove and includes a passage main body 32 and a thread removal part 80. The passage main body 32 includes both ends of the groove and a bottom portion of the groove connected to both ends, and the groove width is wider than other parts. The passage main body 32 has a substantially circular cross-sectional shape. The passage main body 32 is curved in a convex shape toward the inner side of the groove. The passageway body 32 serves as a passageway through which the suture thread 200 is fed. The thread removal part 80 is a part of the groove surrounded by the passage main body 32, is connected to the side of the passage main body 32 and the outside, and has a groove width narrower than the passage main body 32. When suturing

blood vessels

100, 110, suture thread 200 is passed through channel body 32. The suture thread 200 passed through each third passage 31 can be removed from the thread removal section 80, or in other words, from the side of the passage main body 32 to the outside of the passage without being taken out or inserted from the end of the passage main body 32 in the passage direction. can.

When the first sutured part 10 and the second sutured part 20 are attached to the trunk 30, each third passage 31 is connected to the adjacent one of the first passage 11, the second passage 21, and the inlet/outlet passage 40, as shown in FIG. It extends to connect the two that fit together. These two adjacent ones include the adjacent first passages 11, and if a plurality of second passages 21 are provided, the adjacent second passages 21 are also included, but the two adjacent introduction/outlet passages 40 are not included. Not possible. Each of the third passages 31 extends obliquely at substantially the same angle with respect to the circumferential direction and the vertical direction of the outer circumferential surface of the body portion 30 . In each of the third passages 31, when viewed from the horizontal direction, the upper end of the passage main body 32 is the upper end of the passage

main body

12, 22 of each first passage 11 and each second passage 21, or the upper inlet/outlet. 40, and the end of the lower passage main body 32 is the lower end of the passage

main body

12, 22 of each first passage 11 and each second passage 21, or the end of the lower inlet/outlet passage 40. It leads to the department.

Inside the body 30, as shown in FIG. 21, a regulating passage 70 is provided which is a substantially closed passage (approximately annular passage) that crosses the vicinity of both ends of the passage main body 32 of all the third passages 31. There is. The regulation passage 70 of the third sutured portion is basically the same as that of the first sutured portion 10. A movement regulating portion 60 that is an endless cuttable linear body passes through the regulating passage 70 . The movement restricting portion 60 is a fiber thread here, and is passed through the restricting passage 70 and tied at both ends, so that the yarn is passed through the restricting passage 70 and becomes endless.

In addition, regarding the movement restriction part 60 and restriction passage 70 of the first sutured part 10, the second sutured part 20, and the body part 30, the passage

main bodies

12, 22 of the first passage 11, the second passage 21, and the third passage 31, A continuous substantially closed regulating passage 70 that crosses only one end of the 32 and a continuous substantially closed regulating passage 70 that crosses only the other end are provided separately, and an endless movement regulating portion 60 is passed through each regulating passage 70. It may be something that is currently in use. Furthermore, the movement restriction section 60 is configured such that the restriction passage 70 is not provided, and the movement restriction section 60 is spanned across the first passage 11, the second passage 21, and the third passage 31 near both ends thereof. Alternatively, there may be lids that can be attached and removed from the openings of these passages.

The centers of each first passage 11, each second passage 21, and each third passage 31 overlap and intersect with a virtual plane perpendicular to the outer circumferential surface of the body portion 30 at a predetermined position. The virtual plane perpendicular to the outer circumferential surface of the trunk 30 at a predetermined position is a horizontal plane at the center of the trunk 30 here.

When the first sutured part 10 and the second sutured part 20 are mounted on the body part 30, the first passage 11, the second passage 21, the third passage 31, and the introduction/outlet passage 40 are connected to each other. (inlet), and the other inlet/outlet passage 40 is an outlet passage 40 (outlet), which is a substantially continuous passage spirally extending around the vertical direction of the body 30 (circumferential direction of the outer circumferential surface (side circumferential surface)). A suture passageway 50 is formed.

Next, a method of using the suturing aid 1 of the example of the second embodiment will be described. First, as shown in FIG. 22(A), one end of the body 30 is inserted into one blood vessel 100 from the end, and the other end of the body 30 is inserted into the end of the other blood vessel 110. The trunk section 30 is then inserted into the body and attached to the two

blood vessels

100 and 110. Next, as shown in FIG. 22(B), the first sutured portion 10 and the second sutured portion 20 are attached to the trunk 30. This prepares the two

blood vessels

100, 110 to be sutured at their ends. When the first sutured portion 10 and the second sutured portion 20 are attached to the torso 30, the ends of the

blood vessels

100 and 110 are located between the torso 30 and the first sutured portion 10 and the second sutured portion 20. To position. Next, as shown in FIG. 22(C), the suture thread 200 with the needle 202 attached to its tip is fed into the suture thread passageway 50 from one side of the introduction/outlet passageway 40. Needle 202 and suture 200 are the same as in the first embodiment example.

When the suture 200 is fed into the suture passage 50 from one of the introduction and exit passages 40, the suture 200 alternately passes into the first passage 11 or the second passage 21 and the third passage 31 leading thereto, as shown in FIG. It is passed through and sent out from the other side of the inlet/outlet path 40. When the suture 200 is passed through the suture passage 50 in this manner, the two sutures 200 spiral in and out of each

blood vessel

100, 110 around the ends of the

blood vessels

100, 110, as shown in FIG. Passed. At this time, the suture thread 200 passed through each first passage 11 and each second passage 21 is prevented from coming out from the thread removal part 80 by the movement regulating part 60.

After passing the suture thread 200 through the suturing aid 1, the suturing aid 1 is removed from the

blood vessels

100, 110 and the suture thread 200. To remove the suturing aid 1, first, the first suture section 10 and the second suture section 20 are removed, and then the body section 30 is removed.

To remove the first suture section 10 and the second suture section 20, first, the movement restriction section 60 is cut, the movement restriction section 60 is removed from the restriction passage 70, and the restriction of the suture thread 200 by the movement restriction section 60 is released. When the restriction of the suture thread 200 by the movement restriction part 60 is released, the suture thread 200 passed through each of the first passages 11 and the second passages 21 can be removed from the thread removal parts 80 (groove openings) of these passages. become able to. Next, the suture threads 200 passed through each of the first passages 11 and the second passages 21 are removed from the thread removal parts 80 of these passages, and the first suture parts 10 and the second suture parts 20 are removed from the trunk 30. The suture thread 200 passed through each introduction/output path 40 of the second suture section 20 can be removed from each introduction/output path 40 by pulling out the second suture section 20 along the suture thread 200. FIG. 24(A) shows a state in which the first stitched portion 10 and the second stitched portion 20 are removed from the body portion 30.

To remove the trunk 30 from the

blood vessels

100 and 110, as in the case of removing the first sutured portion 10 and the second sutured portion 20, first cut the movement restriction portion 60 and remove the movement restriction portion 60 from the restriction passage 70. The restriction of the suture thread 200 by the movement restriction section 60 is released. When the restriction of the suture thread 200 by the movement restriction section 60 is released, the suture thread 200 passed through each of the third passages 31 can be removed from the thread removal parts 80 of these passages. Next, the suture thread 200 passed through each of the third passages 31 is removed from the thread removal section 80, and the trunk section 30 is pulled out from each

blood vessel

100, 110, and the suture thread 200 passed through the two

blood vessels

100, 110 is removed. Take it out. FIG. 24(B) shows a state in which the trunk 30 is removed from the

blood vessels

100, 110.

blood vessels

100 and 110 and ligating the suture thread 200, the two

blood vessels

100 and 110 are ligated, as shown in FIG. 24(C). The ends are sutured together.

The present invention is not limited to the embodiments and examples described above, and can be modified as appropriate within the scope of the invention described in the claims and inventions equivalent thereto.

1 Suturing aid 10 First suture part 11 First passage 12 Passage body 13 Penetrating part 14 Projection part 15 Attachment hole 16 Recess 20 Second suture part 21 Second passage 22 Passage body 23 Penetration part 24 Projection part 25 Attachment hole 26 Recess 30 Body part 31 Third passage 32 Passage body 33 Penetrating part 34 Attachment/detachment hole 35 Projection part 36 Body 37 Arm part 37a Arm body 37b Arm tip part 40 Introductory/outlet path (introduction path, lead-out path)
50 suture passage 60 movement regulating section 70 regulating passage 80

thread removal section

100, 110

blood vessel

102, 112 opening 200 suture 202 needle

Claims

A suturing aid for suturing two blood vessels with a suture thread,
The torso and
a first suture part that is detachable from the body;
a second suture part that is detachable from the body;
Equipped with
The first suture section includes one or more first passages through which the suture thread can pass,
The second suture section includes one or more second passages through which the suture thread can pass,
The body portion includes one or more third passages through which the suture thread can pass;
The first suture portion, the second suture portion, or the body portion is a passage for introducing the suture thread, and the first passage, the second passage, or the third passage substantially communicates with the outside. Equipped with an introduction path,
The first suture portion, the second suture portion, or the body portion is a passage for leading out the suture thread, and the first passage, the second passage, or the third passage substantially communicates with the outside. Equipped with a lead-out path,
The first passage, the second passage, and the third passage each include a thread removal portion capable of removing the suture thread passed through the passage from a side of the passage.
The third passage includes one that substantially communicates with two adjacent or nearby passages among the one or more first passages and one or more second passages,
The introduction path, the first path, the second path, the third path, and the lead-out path are such that the suture fed from the introduction path passes through the first path, the second path, and the third path. A suturing auxiliary tool that forms a suture thread passage that is a substantially continuous passage that is sent out from the lead-out passage and that extends in a meandering or substantially spiral manner around a predetermined direction.
A suturing aid for suturing two blood vessels on their sides, the suturing aid comprising:
The second seam part is removable from the body part opposite to the first seam part,
A plurality of the first passages, the second passages, and the third passages are each provided,
The first passage is provided on a surface of the first sutured portion that faces the second sutured portion,
The second passage is provided on a surface of the second sutured portion facing the first sutured portion,
The third passage substantially communicates with each of the first passage and each of the second passage in the vicinity,
The suturing aid of claim 1, wherein the suture passage extends in a meandering manner.
The suturing aid according to claim 2, wherein the introduction path and the exit path include a thread removal part that allows the suture passed through the path to be removed from the side of the path.
The suturing aid according to claim 2 or 3, wherein each of the first passages and each of the second passages are provided at intervals in the circumferential direction of an imaginary closed line, and intersect with the imaginary closed line.
The suturing aid according to any one of claims 2 to 4, wherein the introduction path and the exit path are provided in the trunk.
The suturing aid according to any one of claims 2 to 5, wherein the first passage, the second passage, the third passage, the introduction passage, and the exit passage are grooves.
The first passage and the second passage each include a movement restriction part that restricts movement of the suture passed through the passage from the thread removal part to the outside of the passage,
The suturing aid according to any one of claims 2 to 6, wherein the movement restriction section is capable of releasing restriction on movement of the suture thread.
The suturing aid according to claim 7, wherein the movement restriction part is a cuttable linear body and crosses the thread removal part or the vicinity of the thread removal part of the first passage and the second passage.
The first suture portion and the second suture portion each include one or more regulating passages that are substantially closed passages,
The regulating passage of the first sutured part is provided so as to cross the thread removal part or the vicinity of the thread removal part of each of the first passages,
The regulating passage of the second sutured part is provided so as to cross the thread removal part or the vicinity of the thread removal part of each of the second passages,
9. The suturing aid according to claim 8, wherein the movement restricting portion extends endlessly through the restricting passage across each of the first passage or the second passage.
A suturing aid for suturing two blood vessels at their ends, the suturing aid comprising:
The first suture portion is removable from the outer circumferential surface of the torso,
The second seam portion is removable from the outer circumferential surface of the trunk, facing the first seam portion,
One or more of the first passages are provided on a surface of the first seam portion that faces the outer circumferential surface of the torso,
One or more of the second passages are provided on a surface of the second seam portion that faces the outer circumferential surface of the torso,
One or more of the third passages are provided on the outer circumferential surface of the body, and include passages that substantially communicate with two adjacent passages among the one or more of the first passages and the one or more of the second passages,
The suturing aid of claim 1, wherein the suture passage extends in a helical manner.
The suturing aid according to claim 10, wherein the first passage and the second passage are provided at intervals along the circumferential direction of the outer peripheral surface of the trunk.
The introduction path is a through hole passing through the first sutured portion or the second sutured portion,
The lead-out path is a through hole passing through the first sutured portion or the second sutured portion,
The third passage communicates with the introduction passage and the first passage or the second passage adjacent thereto,
The suturing aid according to claim 10 or 11, wherein the third passage communicates with the first passage or the second passage adjacent to the lead-out passage.
The suturing aid according to any one of claims 10 to 12, wherein the first passage, the second passage, and the third passage are grooves.
The first passage, the second passage, and the third passage each include a movement restriction part that restricts movement of the suture passed through the passage from the thread removal part to the outside of the passage,
The suturing aid according to any one of claims 10 to 13, wherein the movement restriction section is capable of releasing restriction on movement of the suture thread.
The suturing aid according to claim 14, wherein the movement restriction part is a cuttable linear body and crosses the thread removal part or the vicinity of the thread removal part of the first passage, the second passage, and the third passage. Ingredients.
The first sutured portion, the second sutured portion, and the body portion each include one or more regulating passages that are substantially closed passages,
The regulating passage of the first sutured part is provided so as to cross the thread removal part or the vicinity of the thread removal part of the first passage,
The regulating passage of the second sutured part is provided so as to cross the thread removal part or the vicinity of the thread removal part of the second passage,
The regulation passage of the trunk section is provided so as to cross the thread removal part or the vicinity of the thread removal part of the third passage,
16. The suturing aid according to claim 15, wherein the movement restricting portion extends endlessly through the restricting passage across each of the first passage, each of the second passage, or each of the third passage.