A vascular suture device

Abstract

The present invention provides a vascular suturing device. The vascular suturing device comprises a handle, a main body and an end actuator, wherein the end actuator comprises a nail support seat connected to the main body, a nail magazine assembly rotatably connected to the nail support seat, and a nail pushing piece and a rod member capable of sliding along the axial direction of the main body, wherein the rod member is rotatably and slidably connected to the nail magazine assembly, so as to facilitate the control of the opening and closing of the nail magazine assembly; the nail support seat and the nail magazine assembly are designed in an arc shape, so as to facilitate the end actuator to enter a narrow space for operation; the nail pushing piece is designed in an arc shape and the nail support block in the traditional stapler is eliminated, so that the structure is simple and more suitable for suturing the arc nail magazine assembly, and a cable structure is also included in order to cooperate with the nail pushing piece to have a better driving force, so that the vascular suturing device is more convenient to use through the cooperation of the above components, and the size can be greatly reduced compared with the traditional stapler.

Description

Technical Field

[0001] The invention relates to the field of medical devices, and in particular to a vascular suturing device. Background Art

[0002] At present, the medical devices used for suturing blood vessels on the market are mainly vascular clamps and cutting staplers. Because vascular clamps cannot penetrate blood vessels, there is a risk of lateral slippage, and they are short in length and cannot clamp some free, unclean, and thick blood vessels. Cutting staplers suturing and cutting are performed simultaneously. If the suturing cannot be confirmed to be intact, there will be a risk of bleeding. In addition, the size of the head is too large, making it difficult to operate in some narrow spaces. Since the structure of this type of stapler is relatively complex, it is actually difficult to make it suitable for vascular suturing only by reducing its size. Moreover, this type of stapler is mostly designed in a straight line, which is not convenient for entering a narrow space. For example, Patent Document 1 (CN202950705U) discloses an arc-shaped cutting stapler, which uses an arc-shaped stapler magazine when suturing, and uses a semicircular stapler pusher to drive the suturing staples, so that it cannot be used in a narrow space. For example, Patent Document 2 (CN104490436A) discloses a cutting stapler, which uses a left-side curved stapler magazine and uses a push plate for pushing. Although such a stapler can also enter a narrow space, since the push plate is arc-shaped, it will get stuck during the sliding process, which is inconvenient to operate. Finally, Patent Document 3 (CN204723115U) discloses a vascular stapler, which also has only a suturing function. It sets the stapler magazine to be inclined relative to the bracket, but the stapler is a straight structure stapler and does not have a curvature. In summary, the prior art does not provide a vascular suturing device that has a nail magazine with an upward curvature, a nail pushing piece with the same upward curvature for driving suturing, and can be operated in a narrow space. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide a new type of vascular suture device, which only sutures but does not cut. Cutting can be performed after confirming that the suture is intact to avoid the risk of bleeding. At the same time, the vascular suture device has a simple structure and can be greatly reduced in size, so it is easy to operate in a narrow space and is very convenient to use.

[0004] In order to achieve the above object, the technical solution adopted by the present invention is:

[0005] A vascular suturing device comprises a handle, an end actuator and a main body connected therebetween, wherein the end actuator comprises a nail support seat connected to the main body, a nail magazine assembly rotatably connected to the nail support seat and openable and closable, and a nail pushing piece and a rod member disposed in the main body and capable of axial movement along the main body, wherein the nail pushing piece and the rod member are respectively connected to the handle, and the handle is operated so that the nail pushing piece and the rod member can move independently, and the nail magazine assembly is rotatably and slidably connected to the rod member and can be opened or closed under the drive of the rod member.

[0006] The nail magazine assembly includes a shell, a nail magazine detachably arranged in the shell, and a suture nail and a nail pusher particle movably arranged in the nail magazine. A guide groove extending along the length direction is opened in the middle area of ​​the shell and the nail magazine. When the nail pusher moves toward the distal end of the end actuator, the nail pusher is inserted into the guide groove and pushes the nail pusher particle to move with the suture nail in a direction close to the nail support.

[0007] The nail support, the nail magazine assembly and the nail pushing piece are bent upward in an arc shape, and the curvatures of the three are the same.

[0008] Preferably, the nail pushing piece includes a nail pushing piece body, and a nail pushing piece distal end portion and a nail pushing piece proximal end portion which are integrally formed with the nail pushing piece body and are respectively located at the distal end and proximal end of the nail pushing piece body, the curvature of the lower end surface of the nail pushing piece body is the same as that of the nail magazine assembly and is smaller than the lower end surface of the distal end portion of the nail pushing piece, the proximal end portion of the nail pushing piece is connected to the handle and extends in the same direction as the body. The lower end surfaces of the nail pushing piece body and the distal end portion of the nail pushing piece are nail pushing surfaces.

[0009] Preferably, the proximal end and the distal end of the abutment surface of the staple-pushing particle facing away from the suture staple are bent in a direction opposite to the bending direction of the staple cartridge assembly, and the middle portion of the abutment surface is a plane.

[0010] Further preferably, the length of the middle portion of the abutment surface accounts for 25-45% of the total length of the nail-pushing particle.

[0011] In some embodiments, the proximal end and the distal end of the abutting surface are inclined surfaces, and the abutting surface is symmetrically arranged along its width direction.

[0012] Preferably, the nail pushing particles include two groups which are staggeredly arranged on both sides of the guide groove, and the suture nails are arranged in a one-to-one correspondence with the nail pushing particles.

[0013] Preferably, both sides of the proximal end portion of the nail support seat have upwardly extending limit protrusions, and the nail magazine assembly has a limit groove that is compatible with the limit protrusions. When the nail magazine assembly is switched from an open state to a closed state, the limit protrusions are stuck in the limit grooves and prevent the nail magazine assembly from continuing to rotate downward to maintain the closed state; when the nail magazine assembly is switched from a closed state to an open state, the proximal end surface of the limit protrusions is pressed against the nail magazine assembly and prevents the nail magazine assembly from continuing to rotate upward to maintain an open state at a certain angle.

[0014] Preferably, the shell is rotatably connected to the dowel seat and the rotation center line is located above the rotation center line of the shell and the rod.

[0015] Preferably, the lower end surfaces on both sides of the shell are respectively provided with first recessed areas recessed upward, and the inner side walls are respectively provided with second recessed areas recessed outward;

[0016] The nail magazine has a first convex portion matching the first concave area and a second convex portion matching the second concave area on both sides, and the first convex portion and the second convex portion are detachably clamped in the first concave area and the second concave area respectively.

[0017] Preferably, the width of the distal end of the nail support and the nail magazine assembly gradually decreases from near to far.

[0018] Preferably, the nail magazine comprises a left nail wall, a right nail wall and a nail bottom plate, a closed nail head is arranged at the distal end of the nail magazine, the left nail wall and the right nail wall are respectively arranged at the left and right ends of the nail bottom plate, a nail pushing groove is formed between the left nail wall and the right nail wall, the nail pushing groove is for the nail pushing piece to slide through, a plurality of left nail accommodating cavities are opened in the left nail wall, a plurality of right nail accommodating cavities are opened in the right nail wall, two adjacent right nail accommodating cavities are separated by a right partition column, and two adjacent left nail accommodating cavities are separated by a left partition column, nail pushing particles are accommodated in the left nail accommodating cavities and the right nail accommodating cavities, a left through hole is opened in the left partition column, and a right through hole is opened in the right partition column, and a cable is also arranged in the nail magazine, a cable fixing end is opened at the distal end of the left nail wall close to the closed nail head, and a cable fixing end is opened at the proximal end away from the closed nail head. A cable turning channel 1 is provided, a cable turning channel 2 is opened at the proximal end of the right nail wall away from the closed nail head, and a cable fixing end 2 is opened at the distal end of the right nail wall close to the closed nail head. After one end of the cable is fixedly arranged at the cable fixing end 1, it repeatedly passes through the left nail accommodating cavity, the left through hole 1, and finally passes through the cable turning channel 1. The cable turning channel 1 allows the cable in the left nail wall to pass out and pass through the nail pushing groove. The cable turning channel 2 guides the cable passing through the nail pushing groove into the right nail wall, and then repeatedly passes through the right nail accommodating cavity and the right through hole 1. The other end is fixedly arranged at the cable fixing end 2. The cable is close to the upper end of the nail pushing particle. The nail pushing piece is provided with a hook rope groove at the first arc section. The hook rope groove can hook the cable in the nail pushing groove when the nail pushing piece is extended.

[0019] Preferably, the left nail wall further includes a through channel one and a left through hole two in sequence between the cable fixing end one and the left through hole two, the cable turning channel one includes a left through hole three, a through channel two, a through channel three and a through channel four which are arranged in sequence, and a through channel five is also arranged at the upper end of the through channel four, and the through channel five extends from the left nail wall to the nail pushing groove; the right nail wall further includes a through channel six and a right through hole two in sequence between the cable fixing end two and the right nail accommodating cavity, the cable turning channel two includes a right through hole three, a through channel seven, a through channel eight and a through channel nine which are arranged in sequence, and a through channel ten is also arranged at the upper end of the through channel nine, and the through channel ten extends from the right nail wall to the nail pushing groove.

[0020] Preferably, the cable comprises a first cable free end, a first oblique segment, a second arc segment, a third oblique segment, a fourth arc segment, a fifth upward segment, a sixth horizontal segment, a seventh downward segment, an eighth arc segment, a ninth oblique segment, a tenth arc segment, an eleventh oblique segment and a second cable free end, the first cable free end is fixedly arranged at one of the cable fixed ends, the second cable free end is fixedly arranged at two of the cable fixed ends, the first oblique segment passes through the first channel and the second left through hole respectively, the second arc segment repeatedly passes through the left nail receiving cavity and the first left through hole in sequence, and the second arc segment is pressed At the top of the nail pushing particle, the third oblique segment passes through the left through hole and through channel two in sequence, the fourth arc segment passes through through channel three, the fifth ascending segment passes through through channel four, the sixth horizontal segment passes through through channel five, the nail pushing groove and through channel ten respectively, the seventh descending segment passes through through channel nine, the eighth arc segment passes through through channel eight, the ninth oblique segment passes through through channel seven and right through hole three, the tenth arc segment repeats passing through the right nail accommodating cavity and the right through hole one in sequence, the eleventh oblique segment passes through the right through hole two and through channel six, and the free end two of the cable is fixed to the fixed end two of the cable.

[0021] Preferably, a cable through hole is provided at the top block of the nail-pushing particle, and the cable passes through the cable through hole.

[0022] Preferably, the cable is disconnected at the sixth horizontal section, and the two disconnected ends are connected by a cable connecting tube, the length of the cable connecting tube is greater than or equal to the thickness of the nail pushing piece, and the diameter of the cable connecting tube is less than or equal to the width of the guiding oblique groove.

[0023] Due to the application of the above technical solution, the present invention has the following advantages compared with the prior art:

[0024] 1. The vascular suturing device of the present invention comprises a handle, a main body and an end actuator, wherein the end actuator comprises a nail anvil, a nail magazine assembly, a nail pushing piece and a rod, and the rod is rotatably and slidably connected to the nail magazine assembly, so as to facilitate the control of the opening and closing of the nail magazine assembly; the nail anvil and the nail magazine assembly are designed in an arc shape, so as to facilitate the end actuator to enter a narrow space for operation; the nail pushing piece is designed in an arc shape and eliminates the nail anvil block in the traditional stapler, so that the structure is simple and more suitable for suturing the arc-shaped nail magazine assembly. Through the cooperation of the above components, the vascular suturing device is more convenient to use and its size can be greatly reduced compared with the traditional stapler;

[0025] 2. The vascular suturing device of the present invention includes a cable, which is arranged in the nail magazine, and part of the cable is exposed in the nail pushing groove through which the nail pushing piece passes. The nail pushing piece is also provided with a hooking rope groove structure capable of hooking the cable. When the nail pushing piece slides to drive the nail pushing particle, the cable enters the hooking rope groove, so that the nail pushing piece is combined with the cable. The tightened cable can provide a pulling force for the nail pushing piece to approach the nail magazine, thereby avoiding the defect that the arc-shaped nail pushing piece cannot provide sufficient driving force for the nail pushing particle when performing the nail pushing action;

[0026] 3. The cable of the present invention is a closed winding structure, which passes through the left nail accommodating cavity and the right nail accommodating cavity in the left nail wall and the right nail wall, and the cable contacts the upper end of the nail pushing particle. When the nail pushing piece hooks the sixth horizontal section of the cable and slides toward the distal end, the cable contacting the nail pushing particle slides toward the proximal end, so that the first arc section of the nail pushing piece contacts the proximal end area of ​​the abutment surface of the nail pushing particle, so that the nail pushing particle has a tendency to rotate counterclockwise, and the cable provides the nail pushing particle with a force opposite to the counterclockwise rotation, which eventually reduces or even eliminates the rotation tendency of the nail pushing particle, so that the nail pushing particle can slide more smoothly, overcoming the defect that the suture needle is stuck or the firing force is insufficient when the suture needle in the arc nail bin is pushed by the nail pushing piece;

[0027] 4. The cable of the present invention specifically includes a free end of a cable, a first oblique segment, a second arc segment, a third oblique segment, a fourth arc segment, a fifth upward segment, a sixth horizontal segment, a seventh downward segment, an eighth arc segment, a ninth oblique segment, a tenth arc segment, an eleventh oblique segment and a free end of a cable. The free end of the cable is fixedly arranged at one fixed end of the cable, and the free end of the cable is fixedly arranged at two fixed ends of the cable. The free end of the cable and / or the free end of the cable include a drum, which is engaged with a rotating shaft. The length and tension of the cable can be adjusted by controlling the rotation of the rotating shaft. The cable can be adjusted in real time according to the action state of the suturing device to achieve a better suturing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 This is a schematic structural diagram of the vascular suture device of Example 1;

[0029] Figure 2 is a top view of the vascular suture device of Example 1;

[0030] Figure 3 for Figure 1 A magnified schematic diagram of part A;

[0031] Figure 4 This is a structural schematic diagram of the end effector of Example 1 in an open state;

[0032] Figure 5 This is a structural schematic diagram of the end effector of Example 1 in an open state without a staple cartridge installed;

[0033] Figure 6 It is a schematic structural diagram of the end effector and the main body of Example 1, wherein the end effector is in a closed state;

[0034] Figure 7 It is a schematic diagram of the structure of the end effector and the main body of Example 1, wherein the end effector is in an open state;

[0035] Figure 8 is a cross-sectional view of the end effector of Example 1;

[0036] Fig. 9 This is a front view of the nail pushing piece of Example 1;

[0037] Fig.10 It is a bottom view of the nail pushing sheet of Example 1;

[0038] Fig.11 This is a schematic structural diagram of the anvil of Example 1;

[0039] Fig.12 This is a schematic diagram of the structure of the housing of Example 1;

[0040] Fig.13 It is a bottom view of the housing of Example 1;

[0041] Fig.14 The structure of the nail magazine in Example 1 is shown in FIG. Figure 1 ;

[0042] Fig.15 The structure of the nail magazine in Example 1 is shown in FIG. Figure 2 ;

[0043] Fig.16 This is a schematic diagram of the structure of a nail magazine cover plate of the nail magazine in Example 1;

[0044] Fig.17 This is a schematic diagram of the structure of the nail magazine in Example 1 after removing the nail magazine cover plate;

[0045] Fig.18 The top view and cross-sectional view of the nail magazine of Example 1 after removing the nail magazine cover plate;

[0046] Fig.19 It is a schematic diagram of the structure of the nail magazine of Example 1 after removing the nail magazine cover plate, cut away from the middle section;

[0047] Fig. 20 for Fig.19 A cross-sectional view of

[0048] Fig.21 This is a schematic diagram of the structure of the nail-pushing particle in Example 1;

[0049] Fig. 22 This is a schematic diagram of the nail magazine structure of Example 2;

[0050] Fig.23 This is a schematic diagram of a nail magazine of Example 2 cut through a cross section through the left partition column;

[0051] Fig.24 for Fig.23 A cross-sectional view of

[0052] Fig.25 This is a schematic diagram of a nail magazine of Example 2 cut through a cross section through the right partition column;

[0053] Fig.26 for Fig.25 A cross-sectional view of

[0054] Fig. 27 This is an enlarged schematic diagram of a portion of the structure of the staple cartridge of Example 2;

[0055] Fig.28 Schematic diagram of cable structure;

[0056] Fig.29 This is a schematic structural diagram of the nail pushing piece of Example 2;

[0057] Fig.30 for Fig.29 A magnified view of

[0058] Fig.31 This is a schematic diagram of the structure of the nail-pushing particle in Example 2;

[0059] Fig.32 This is a schematic diagram of the cable structure of Example 3.

[0060] Among them, 1. end actuator; 11. nail magazine assembly; 111. shell; 1111. limiting groove; 1112. first recessed area; 1113. second recessed area; 1114. rotating shaft; 112. nail magazine; 1121. first convex part; 1122. second convex part; 1123. nail magazine cover plate; 1124. left nail wall; 1125. right nail wall; 1126. nail bottom plate; 1127. nail pushing groove; 1128. right nail containing cavity; 1129. left nail containing cavity; 11231. cover plate head end; 11232. cover plate left leg; 11233. cover plate right leg; 11234. first clamping column; 11235. second clamping column; 11236. third clamping column; 113. nail pushing particle; 1130. right spacer column; 113 1. Middle area of ​​the abutment surface; 1132. Proximal area of ​​the abutment surface; 1133. Anchor groove; 1134. Distal area of ​​the abutment surface; 1135. Left partition column; 1136. Closed nail head; 1137. First clamping hole; 1138. Second clamping hole; 1139. Third clamping hole; 114. Suture nail; 1140. Left clamping groove; 1141. Right clamping groove; 1142. Top block; 1143. Bottom foot; 1144. Left guide block; 1145. Right guide block; 1146. Nail hole; 1147. Right through hole 1; 1148. Left through hole 1; 1149. Right through hole 2; 115. Guide groove; 1150. Left through hole 2; 1151. Cable fixing end 1; 1152. Through channel 1; 1153. Left through hole 3 ; 1154, through channel two; 1155, through channel three; 1156, through channel four; 1157, through channel five; 1158, cable fixed end two; 1159, right through hole three; 1160, through channel six; 1161, through channel seven; 1162, through channel eight; 1163, through channel nine; 1164, through channel ten; 12, nail support; 121, limiting protrusion; 122, connecting part; 123, limiting groove; 124, hole; 13, nail pusher; 131, nail pusher body; 1311, lower end surface of nail pusher body; 132, distal end of nail pusher; 1321, lower end surface of distal end of nail pusher; 133, proximal end of nail pusher; 134, first straight section; 135, first arc section; 136, third arc segment; 137, fourth straight segment; 138, fifth arc segment; 139, sixth arc segment; 14, rod; 140, oblique segment; 141, hook rope groove; 1411, retention hole; 1412, guide oblique groove; 1143, cable through hole; 15, cable; 151, cable free end 1; 152, cable free end 2; 153, first oblique segment; 154, second arc segment; 155, third oblique segment; 156, fourth arc segment; 157, fifth upward segment; 158, sixth horizontal segment; 159, seventh downward segment; 160, eighth arc segment; 161, ninth oblique segment; 162, tenth arc segment; 163, eleventh oblique segment; 164, cable connecting pipe; 165, receiving hole;166, rotating shaft; 167, reel; 168, through hole;

[0061] 2. Subject;

[0062] 3. Handle;

[0063] x, first rotation center line; P1, middle section; P2, left partition column passing through the section; P3, right partition column passing through the section. DETAILED DESCRIPTION

[0064] The present invention is further described below in conjunction with the examples. However, the present invention is not limited to the following examples. The implementation conditions used in the examples can be further adjusted according to the different requirements of specific use, and the implementation conditions not specified are conventional conditions in the industry. The technical features involved in each embodiment of the present invention can be combined with each other as long as they do not conflict with each other.

[0065] In the following, only some exemplary embodiments are briefly described. As those skilled in the art will appreciate, the described embodiments may be modified in various ways without departing from the spirit or scope of the embodiments of the present invention. Therefore, the drawings and descriptions are considered to be exemplary and non-restrictive in nature.

[0066] In the description of the present invention, it should be understood that the distal end refers to the end of the instrument or component away from the operator, and the proximal end refers to the end of the instrument or component close to the operator; the axial direction refers to the direction parallel to the line connecting the distal end and the proximal end of the instrument or component; the inside and the outside are positions defined by the distance relative to the center of the instrument or component, wherein the inside is the position close to the center of the instrument or component, and the outside is the position away from the center of the instrument or component; the upper and the lower refer to the orientation of the instrument in actual use or working state. The description of the above-mentioned orientation words is only for the convenience of describing the embodiments of the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the embodiments of the present invention. The middle section P1 refers to the section passing vertically through the central axis of the nail magazine; the section passing through the left septum column P2 refers to the section passing vertically through the center of the left through hole 1148 of the nail magazine; the section passing through the right septum column P3 refers to the section passing vertically through the center of the right through hole 1147 of the nail magazine.

[0067] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0068] The disclosure below provides many different embodiments or examples to implement different structures of the embodiments of the present invention. In order to simplify the disclosure of the embodiments of the present invention, the parts and settings of specific examples are described below. Of course, they are only examples, and the purpose is not to limit the embodiments of the present invention. In addition, the embodiments of the present invention can repeat reference numbers and / or reference letters in different examples, and this repetition is for the purpose of simplification and clarity, which itself does not indicate the relationship between the various embodiments and / or settings discussed.

[0069] The embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0070] Example 1

[0071] like Figure 1-2 As shown, a vascular suturing device includes a handle 3, an end effector 1 and a main body 2 connected therebetween. The handle 3 can adopt a commonly used structure in the prior art, which will not be described in detail in the present invention. The main body 2 is a hollow pipe, which is rotatably arranged on the handle 3 around its axis.

[0072] like Figures 3 to 8 As shown, the end effector 1 includes a nail support 12 connected to the main body 2, a nail magazine assembly 11 that is rotatably connected to the nail support 12 around a first rotation center line x and can be opened and closed, and a nail pusher 13 and a rod 14 that are axially slidably arranged in the main body 2. Among them, the nail magazine assembly 11 includes a shell 111, a nail magazine 112 arranged in the shell 111, and a suture nail 114 and a nail pusher 113 that are movably arranged in the nail magazine 112. The middle area of ​​the shell 111 and the nail magazine 112 is provided with a guide groove 115 extending along the length direction thereof, and the nail magazine assembly 11 is rotatably and slidably connected to the distal end of the rod 14. The nail pusher 13 and the rod 14 are connected to the handle 3 and can move independently under the control of the handle 3. When the rod 14 moves along the axial direction of the main body 2 and toward the proximal end, it can drive the nail magazine assembly 11 to rotate around the first rotation center line x, so that the nail magazine assembly 11 and the nail support 12 are close to clamp the tissue to be sutured in the middle; when the rod 14 moves along the axial direction of the main body 2 and toward the distal end, it can drive the nail magazine assembly 11 to rotate around the first rotation center line x, so that the nail magazine assembly 11 and the nail support 12 are far away; when the nail pusher 13 moves along the axial direction of the shell and toward the distal end of the end actuator 1, the nail pusher 13 is inserted into the guide groove 115 and pushes the nail pusher 113 to move with the suture nail 114 in the direction close to the nail support 12, so as to sew. The end actuator 1 of the present invention only sews but does not cut. Cutting can be performed after confirming that the suturing is intact to avoid the risk of bleeding.

[0073] The nail support 12, the nail magazine assembly 11 and the nail pusher 13 are curved upward and the curvature of the three is roughly the same. The curved design is more convenient for entering a narrow space for operation, and the curved design has a smoother transition than the bent straight line design. The invention has no specific limitation on the curvature, and it can be designed according to actual needs.

[0074] like Fig. 9 and Fig.10 As shown, the nail pushing piece 13 includes a nail pushing piece body 131 and a nail pushing piece distal end portion 132 and a nail pushing piece proximal end portion 133 respectively located at the distal end and the proximal end of the nail pushing piece body 131. The nail pushing piece body 131, the nail pushing piece distal end portion 132 and the nail pushing piece proximal end portion 133 are integrally formed. The lower end surface 1311 of the nail pushing piece body 2 forms a first arc segment 135, and the curvature of the first arc segment 135 is the same as that of the nail magazine assembly 11, so that each nail pushing particle 113 is evenly stressed. The lower end surface 1321 of the nail pushing piece distal end portion forms a third arc segment 136, and the curvature of the third arc segment 136 is greater than that of the first arc segment 135. The lower end of the nail pushing piece proximal end portion 133 forms a first straight segment 134, and the left end of the first straight segment 134 and the right end of the first arc segment 135 are smoothly transitioned. The nail pushing piece proximal end portion 133 is connected to the handle 3 and the extension direction is consistent with the main body 2.

[0075] A fourth straight segment 137 is formed at the upper end of the proximal portion 133, a fifth arc segment 138 is formed at the upper end of the main body 131, and a sixth arc segment 139 is formed at the upper end of the distal portion 132. The curvature of the fifth arc segment 138 is the same as that of the first arc segment 135, and the bending direction of the sixth arc segment 139 is opposite to that of the fifth arc segment 138.

[0076] The first arc segment 135, the third arc segment 136 and the fifth arc segment 138 are arcs that gradually move away from the axis of the first straight segment 134 from the proximal end to the distal end; the sixth arc segment 139 is an arc that gradually moves toward the axis of the first straight segment 134 from the proximal end to the distal end.

[0077] An oblique segment 140 is further provided on the left side of the third arc segment 136, and chamfers are provided on the left sides of the oblique segment 140 and the sixth arc segment 139. In this embodiment, the nail pushing sheet 13 is a sheet-like structure.

[0078] Furthermore, the curvature of the nail support 12 and the nail magazine assembly 11 is the same as the curvature of the first arc segment 135 .

[0079] The nail-pushing particles 113 are arranged in two groups staggered on both sides of the guide groove 115. Take one of the nail-pushing particles 113 as an example. Fig.21As shown, the proximal and distal ends of the abutment surface that is opposite to the suture staple 114 (i.e., the abutment surface distal end region 1134 and the abutment surface proximal end region 1132) are bent in the direction opposite to the bending direction of the staple cartridge assembly 11. Preferably, the abutment surface proximal end region 1132 is an inclined plane. The design of the inclined plane makes it easier for the pusher sheet 13 to push the pusher grain 113 when it moves. The middle region 1131 of the abutment surface is a plane. The inventor found that when the length of the middle region 1131 of the abutment surface is too long, the length of the proximal end region 1132 of the abutment surface is correspondingly shortened. When the pusher sheet 13 acts on the proximal end region 1132 of the abutment surface, the pusher grain 113 will be stuck in the groove of the staple cartridge 112 and cannot be pushed up, that is, the suture staple 114 cannot be pushed out; and when the length is too short, it is easy to wear and affect the height of the staple. Preferably, the length of the middle region 1131 of the abutment surface accounts for 25-45% of the total length of the pusher grain 113. Furthermore, the abutting surfaces are symmetrically arranged along the width direction thereof.

[0080] In order to facilitate the nail pushing piece 13 to simultaneously push the two groups of nail pushing particles 113 located on both sides of the guide groove 115, the nail pushing particles 113 include a bottom foot 1143 and a top block 1142, the thickness of the top block 1142 is greater than the bottom foot 1143, and a left guide block 1144 and a right guide block 1145 are respectively arranged on both sides of the nail pushing particles 113.

[0081] The surfaces of the staple pushers 113 in contact with the suture staples 114 are recessed inward to form staple anvil grooves 1133 , and the suture staples 114 are disposed in the staple anvil grooves 1133 . The suture staples 114 and the staple pushers 113 are disposed in a one-to-one correspondence.

[0082] like Figures 11 to 13 As shown, the anvil 12 includes an anvil body and a connecting portion 122 connected to the proximal end of the anvil body. The proximal end of the anvil body has upwardly extending limiting protrusions 121 on both sides, and the housing 111 has limiting grooves 1111 adapted to the limiting protrusions 121. When the nail magazine assembly 11 switches from the open state to the closed state, the limiting protrusion 121 is clamped in the limiting groove 1111 and prevents the nail magazine assembly 11 from continuing to rotate downward to maintain the closed state; when the nail magazine assembly 11 switches from the closed state to the open state, the proximal end surface of the limiting protrusion 121 is abutted against the housing 111 and prevents the nail magazine assembly 11 from continuing to rotate upward to maintain the open state at a certain angle. The connecting portion 122 has a limiting groove 123 that runs through it along its length direction, and the nail pushing piece 13 and the rod 14 are slidably arranged in the limiting groove 123. The connection portion 122 has a hole 124 above it, and the inner wall of the housing 111 is provided with a rotating shaft 1114 matching the hole 124, and the rotating shaft 1114 is rotatably disposed in the hole 124 around the first rotation center line x. The housing 111 is rotatably and slidably connected to the rod 14, and the rotation center line is located below the first rotation center line x.

[0083] In the present invention, the housing 111 is detachably connected to the nail magazine 112. Specifically, the lower end surfaces on both sides of the housing 111 are respectively provided with first recessed areas 1112 recessed upward, and the inner side walls are respectively provided with second recessed areas 1113 recessed outward; the nail magazine 112 has first convex parts 1121 matched with the first recessed areas 1112 and second convex parts 1122 matched with the second recessed areas 1113 on both sides, and the first convex parts 1121 and the second convex parts 1122 are respectively detachably clamped in the first recessed areas 1112 and the second recessed areas 1113.

[0084] like Figure 14-20 As shown, the nail magazine 112 includes a nail magazine cover plate 1123 which is detachably covered on the upper end of the nail magazine 112, and the nail magazine 112 includes a left nail wall 1124, a right nail wall 1125 and a nail bottom plate 1126. A closed nail head 1136 is provided at the distal end of the nail magazine 112. The left nail wall 1124 and the right nail wall 1125 are respectively provided at the left and right ends of the nail bottom plate 1126. A nail pushing groove 1127 is formed between the left nail wall 1124 and the right nail wall 1125. The nail pushing groove 1127 is for the nail pushing sheet 13 to slide through. A plurality of left and right storage spaces are provided in the left nail wall 1124. Nail cavity 1129, a plurality of right nail accommodating cavities 1128 are provided in the right nail wall 1125, two adjacent right nail accommodating cavities 1128 are separated by a right partition column 1130, and two adjacent left nail accommodating cavities 1129 are separated by a left partition column 1135, and nail pushing particles 113 are accommodated in both the left nail accommodating cavity 1129 and the right nail accommodating cavity 1128, and the left nail accommodating cavity 1129 and the right nail accommodating cavity 1128 are arranged alternately, and a plurality of nail outlet holes 1146 are provided on the nail bottom plate 1126, and the suture nails 114 located below the nail pushing particles 113 can pass through the nail outlet holes 1146.

[0085] The nail magazine cover plate 1123 includes a cover plate head end 11231 and a left cover plate leg 11232 and a right cover plate leg 11233 respectively fixed to one end of the cover plate head end 11231, a sliding groove for the nail pusher 13 to pass through is formed between the left cover plate leg 11232 and the right cover plate leg 11233, a third clamping column 11236 is arranged on the side of the left cover plate leg 11232 in contact with the nail magazine 112, and a third clamping column 11236 is arranged on the side of the right cover plate leg 11233 in contact with the nail magazine 112. There are a first clamping column 11234 and a second clamping column 11235, and a first clamping hole 1137 and a second clamping hole 1138 are respectively provided at the upper end of the left nail wall 1124, and a third clamping hole 1139 is provided at the upper end of the right nail wall 1125. The first clamping column 11234, the second clamping column 11235 and the third clamping column 11236 are respectively inserted into the first clamping hole 1137, the second clamping hole 1138 and the third clamping hole 1139 to fix the nail magazine cover 1123.

[0086] like Fig.18As shown, the top block 1142 of the nail-pushing particle 113 extends from the left nail wall 1124 or the right nail wall 1125 to the nail-pushing groove 1127, and the bottom foot 1143 of the nail-pushing particle 113 is located in the left nail wall 1124 or the right nail wall 1125, so that one nail-pushing piece 13 can conveniently drive two groups of nail-pushing particles 113. A left guide block 1144 and a right guide block 1145 are also arranged on both sides of the nail-pushing particle 113, and a left clamping groove 1140 and a right clamping groove 1141 are respectively arranged on both sides of the left nail-accommodating cavity 1129 and the right nail-accommodating cavity 1128, and the left guide block 1144 and the right guide block 1145 are respectively clamped in the left clamping groove 1140 or the right clamping groove 1141.

[0087] In order to facilitate entry into narrow areas, the width of the distal end of the nail support 12 and the nail magazine 112 gradually decreases from near to far.

[0088] The working principle of the stapler of Example 1 is described as follows:

[0089] Initially, the staple cartridge assembly 11 is in an open state, and the handle 3 is operated to move the rod 14 axially toward the proximal end along the main body 2 , and the rod 14 drives the staple cartridge assembly 11 to rotate downward around the first rotation axis to a closed state, clamping the blood vessel.

[0090] The handle 3 is operated to make the nail pushing piece 13 move axially along the main body 2 toward the distal end of the end actuator 1. Under the action of the nail pushing piece 13, the nail pushing particle 113 moves toward the direction close to the nail support 12 and pushes out the suture nail 114. After the head of the suture nail 114 penetrates the blood vessel, it enters the nail support 12 and is bent into a B shape by force, thereby suturing the blood vessel.

[0091] The handle 3 is operated to move the rod 14 in the reverse direction, thereby driving the staple cartridge assembly 11 to rotate around the first rotation center line x to an open state, and the stapler is withdrawn.

[0092] The nail magazine 112 can be replaced and the above steps can be repeated.

[0093] Example 2

[0094] By the attached Figure 8It can be seen that when the nail pushing piece 13 slides from left to right, due to the upward curvature of the nail magazine, the arrangement of the plurality of nail pushing particles 113 in the nail magazine is also arranged with a certain curvature. When the nail pushing piece 13 slides horizontally from right to left, the first arc section 135 of the nail pushing piece 13 contacts the abutment surface proximal area 1132 of the nail block 1142 of the nail pushing particle 113, thereby driving the nail pushing particle to slide downward. This driving mode first causes the nail pushing particle 113 to rotate counterclockwise relative to the nail magazine, thereby causing the nail pushing particle 113 to slide unsmoothly in the left nail accommodating cavity 1129 or the right nail accommodating cavity 1128, affecting the suture nail 1 14; another convenience, as the push nail piece 13 continues to slide to the left, since only the right end of the push nail piece 13 is subject to a limiting force, it is completely in a suspended state at the left end, and the setting of the upwardly curved nail magazine will make the push nail piece 13 slide to the left continuously. The upward reaction force received by the push nail piece 13 is greater, and finally, the push nail particle 113 closer to the closed nail head 1136 is received by the push nail piece 13. The smaller the push force of the push nail piece 13, the end of the suture nail 114 may eventually fail to fire, or the firing effect is not good; for this reason, embodiment 2 is specifically aimed at the above situation, and the push nail piece 13 and the nail magazine 112 are improved. Specifically, embodiment 2 is as follows:

[0095] like Figure 22-31 As shown, the left partition column 1135 is provided with a left through hole 1148, the right partition column 1130 is provided with a right through hole 1147, the left nail wall 1124 is provided with a cable fixing end 1151, a through channel 1152 and a left through hole 2 1150 in sequence at the far end near the closed nail head 1136, and the left through hole 3 1153, a through channel 2 1154, a through channel 3 1155 and a through channel 4 1156 are provided in sequence at the proximal end away from the closed nail head 1136, and a through channel 5 1157 is also provided at the upper end of the through channel 4 1156. A fifth through-channel 1157 extends from the left nail wall 1124 to the nail pushing groove 1127; a cable fixing end 2 1158, a through-channel 6 1160 and a right through-hole 2 1149 are sequentially arranged at the far end of the right nail wall 1125 near the closed nail head 1136, a right through-hole 3 1159, a through-channel 7 1161, a through-channel 8 1162 and a through-channel 9 1163 are sequentially arranged at the near end away from the closed nail head 1136, and a through-channel 10 1164 is further arranged at the upper end of the through-channel 9 1163, and the through-channel 10 1164 extends from the right nail wall 1125 to the nail pushing groove 1127. The through-channel 5 1157 and the through-channel 10 1164 have the same height.

[0096] A cable 15 is also wound in the nail magazine 112, and the cable 15 includes a cable free end 151, a first oblique segment 153, a second arc segment 154, a third oblique segment 155, a fourth arc segment 156, a fifth upward segment 157, a sixth horizontal segment 158, a seventh downward segment 159, an eighth arc segment 160, a ninth oblique segment 161, a tenth arc segment 162, an eleventh oblique segment 163 and a cable free end 152. The cable free end 151 is fixedly disposed at the cable fixed end 1151, and the cable free end 152 is fixedly disposed at the cable fixed end 1158. The first oblique segment 153 passes through the channel 1152 and the left through hole 1150 respectively, and the second arc segment 154 passes through the left nail accommodating cavity 1129 and the left through hole 1 repeatedly in sequence.

[0097] 1148, and the second arc segment 154 is pressed at the top of the nail pushing particle 113, the third oblique segment 155 passes through the left through hole 1153 and the through channel 2 1154 in sequence, the fourth arc segment 156 passes through the through channel 3 1155, the fifth upward segment 157 passes through the through channel 4 1156, the sixth horizontal segment 158 ​​passes through the through channel 5 1157, the nail pushing groove 1127 and the through channel 10 1164 respectively, and the seventh downward segment 159 passes through the through channel Channel nine 1163, the eighth arc segment 160 passes through channel eight 1162, the ninth oblique segment 161 passes through channel seven 1161 and right through hole three 1159, the tenth arc segment 162 repeatedly passes through the right nail receiving cavity 1128 and the right through hole one 1147 in sequence, the eleventh oblique segment 163 passes through the right through hole two 1149 and through channel six 1160, and the free end two 152 of the cable is fixed to the fixed end two 1158 of the cable.

[0098] like Figure 29-30 As shown, the nail pushing piece 13 is provided with a hooking rope groove 141 at the first arc segment 135, and the hooking rope groove 141 includes a guiding oblique groove 1412 and a retaining hole 1411. The outer end of the guiding oblique groove 1412 starts from the first arc segment 135, and the inner end is connected to the retaining hole 1411. The edge of the guiding oblique groove 1412 forms an angle α with the edge of the first arc segment 135, and the size of the angle α is (0°, 90°), and the size of the angle is preferably 30°. The diameter of the retaining hole 1411 is greater than the width of the guiding oblique groove 1412. Such a setting enables the cable 15 to stay in the retaining hole 1411 through the guiding oblique groove 1412 when the nail pushing piece 13 is extended and slid, and the cable 15 can slide out of the retaining hole 1411 when it is retracted and slid. The width of the guiding oblique groove 1411 is not less than the diameter of the cable 15 so that the cable 15 can enter the guiding oblique groove 1411 .

[0099] Not shown, the heights through channel five 1157 and channel ten 1164 are both equal to or higher than the height of the lowest end of the guiding oblique groove 1412, so that when the nail pushing piece is extended, the cable 15 can smoothly enter the retaining hole 1411 along the guiding oblique groove 1412.

[0100] The cable fixed end 1151 and the cable fixed end 2 1158 have the same structure, both including a receiving hole 165 and a rotating shaft 166 disposed in the receiving hole 165. The cable free end 151 and the cable free end 2 152 have the same structure, both including a drum 167, a through hole 168 is provided in the drum 167, and the cable 15 is wound around the drum 167. The drum 167 is disposed in the receiving hole 165, and the rotating shaft 166 is clamped in the through hole 168. The rotating shaft 166 is rotatably disposed in the left nail wall 1124 and / or the right nail wall 1125, and the length of the cable 15 can be adjusted by a rotating drive mechanism, such as a rotating drive mechanism configured as a motor or a torsion spring. When the torsion spring is rotated, one end of the torsion spring is connected to the rotating shaft, and the other end is connected to the left nail wall or the right nail wall.

[0101] In addition, if Fig.31 As shown, a cable through hole 1143 is provided at the top block 1142 of the nail-pushing particle 113, and the cable 15 passes through the cable through hole 1143. The diameter of the cable through hole 1143 is greater than or equal to the diameter of the cable 15.

[0102] The cable 15 is made of a biocompatible material with a certain flexibility, and the specific material may be polyester.

[0103] Furthermore, the uppermost positions of the left through hole 2 1520, the left through hole 1 148, the left through hole 3 1153, the right through hole 1 147, the right through hole 2 1149 and the right through hole 3 1159 are the heights of the upper ends of the nail pushing particles 113 when the nail pushing particles 113 are not fired; and the lowermost positions are the heights of the upper ends of the nail pushing particles 113 when the nail pushing particles 113 are fired by the nail pushing sheet.

[0104] The working principle of the stapler pusher of the second embodiment is described as follows:

[0105] After the suture nail 114 and the cable 15 are installed, the nail pushing piece 13 slides forward. When the nail pushing piece 13 passes through the sixth horizontal section 158 of the cable 15 passing through the channel five 1157 and the channel ten 1164, the cable 15 passes through the guiding oblique groove 1412 and enters the retaining hole 1411. As the nail pushing piece 13 continues to advance, it tightens the cable 15, and the portion of the cable 15 that is not exposed to the nail pushing groove 1127 slides in the direction opposite to the movement direction of the nail pushing piece 13, thereby driving the nail pushing particle 113 to rotate clockwise relative to the nail magazine. In this way, the force exerted by the nail pushing piece 13 on the nail pushing particle 113 when sliding to the left, which causes the nail pushing particle to rotate counterclockwise relative to the nail magazine, can be offset. The nail-pushing particle 113 can slide smoothly in the left nail-accommodating cavity 1129 or the right nail-accommodating cavity 1128; in addition, as the nail-pushing piece 13 extends, the cable 15 exposed in the nail-pushing groove 1127 becomes longer, and the cable arranged in the left nail wall 1124 and the right nail wall 1125 becomes shorter, which can also provide a force for the nail-pushing particle 113 to move downward to a certain extent; finally, since the cable 15 is always retained in the retention hole 1411, the cable is equivalent to always giving a pulling force to the nail-pushing piece 13 close to the nail magazine 112, thereby overcoming the reaction force that the nail-pushing piece 13 is subjected to when driving the nail-pushing particle 113 in the arc-shaped nail magazine, so that the suture staples at the distal end or the proximal end can obtain sufficient driving force.

[0106] When the tension on the cable 15 is too large, the rotating shaft 166 at the first cable fixed end 1151 and / or the second cable fixed end 1158 rotates to prevent the cable 15 from being broken or the push nail piece 13 from being blocked when being pushed out. Specifically, a preset tension value can be set. If the cable tension is greater than the preset value, the rotating shaft is controlled to rotate. When the tension is less than the preset value, the rotating shaft rotates in the opposite direction to collect the rope. For example, when the rotational power driving the rotating shaft is a torsion spring, the rotating shaft will rotate only when the tension received by the cable 15 is greater than the torsion spring. In addition, when the tension on the cable 15 is too small, the rotating shaft can also rotate in the opposite direction to collect the rope. The specific driving device can also be driven by a motor, which will not be described in detail here.

[0107] Example 3

[0108] like Fig.32 As shown, in order to facilitate the installation of the cable 15 and to prevent the cable 15 from being worn when entering or sliding out of the nail pushing piece 13, the cable 15 is disconnected at the sixth horizontal section 158, and the two disconnected ends are connected by a cable connecting tube 164, and the length of the cable connecting tube 164 is greater than or equal to the thickness of the nail pushing piece 13. The diameter of the cable connecting tube 164 is less than or equal to the width of the guiding oblique groove 1412.

[0109] The above detailed description of the present invention is intended to enable persons familiar with the art to understand the contents of the present invention and implement them. It does not limit the protection scope of the present invention. Any equivalent changes or modifications made according to the spirit of the present invention should be included in the protection scope of the present invention.

Claims

1. A vascular suturing device, comprising a handle, an end effector and a body connected therebetween, characterized in that: The end actuator comprises a nail support seat connected to the main body, a nail magazine assembly rotatably connected to the nail support and capable of opening and closing, and a nail pushing piece and a rod member disposed in the main body and capable of axially moving along the main body. The nail pushing piece and the rod member are respectively connected to the handle. When the handle is operated, the nail pushing piece and the rod member can move independently. The nail magazine assembly is rotatably and slidably connected to the rod member and can be opened or closed under the drive of the rod member. The nail magazine assembly includes a shell, a nail magazine detachably arranged in the shell, and a suture nail and a nail pusher particle movably arranged in the nail magazine. A guide groove extending along the length direction is opened in the middle area of ​​the shell and the nail magazine. When the nail pusher moves toward the distal end of the end actuator, the nail pusher is inserted into the guide groove and pushes the nail pusher particle to move with the suture nail in a direction close to the nail support. The nail anvil, the nail magazine assembly and the nail pushing piece are bent upward in an arc shape, and the curvatures of the three are substantially the same; The nail magazine comprises a left nail wall, a right nail wall and a nail bottom plate, a closed nail head is arranged at the far end of the nail magazine, the left nail wall and the right nail wall are respectively arranged at the left and right ends of the nail bottom plate, a nail pushing groove is formed between the left nail wall and the right nail wall, the nail pushing groove is for the nail pushing piece to slide through, a plurality of left nail accommodating cavities are opened in the left nail wall, a plurality of right nail accommodating cavities are opened in the right nail wall, two adjacent right nail accommodating cavities are separated by a right partition column, and two adjacent left nail accommodating cavities are separated by a left partition column, nail pushing particles are accommodated in the left nail accommodating cavities and the right nail accommodating cavities, a left through hole is opened in the left partition column, and a right through hole is opened in the right partition column, and a cable is also arranged in the nail magazine, a cable fixing end is opened at the far end of the left nail wall close to the closed nail head, and a cable fixing end is opened at the proximal end away from the closed nail head. A cable turning channel 1 is provided, a cable turning channel 2 is provided at the proximal end of the right nail wall away from the closed nail head, and a cable fixing end 2 is provided at the distal end of the right nail wall close to the closed nail head. One end of the cable is fixedly arranged at the cable fixing end 1 and then repeatedly passes through the left nail accommodating cavity, the left through hole 1, and finally passes through the cable turning channel 1. The cable turning channel 1 allows the cable in the left nail wall to pass out and pass through the nail pushing groove. The cable turning channel 2 guides the cable passing through the nail pushing groove into the right nail wall, and then repeatedly passes through the right nail accommodating cavity and the right through hole 1. The other end is fixedly arranged at the cable fixing end 2. The cable is tightly attached to the upper end of the nail pushing particle. The nail pushing piece is provided with a hook rope groove at the first arc section. The hook rope groove can hook the cable in the nail pushing groove when the nail pushing piece is extended.

2. The vascular suture device according to claim 1, characterized in that: The nail pushing piece includes a nail pushing piece body, and a distal end portion and a proximal end portion of the nail pushing piece which are integrally formed with the nail pushing piece body and are respectively located at the distal end and proximal end of the nail pushing piece body. The lower end surface of the nail pushing piece body forms a first arc segment, and the bending curvature of the first arc segment is the same as that of the nail magazine assembly. The lower end surface of the distal end portion of the nail pushing piece forms a third arc segment, and the bending curvature of the third arc segment is greater than that of the first arc segment. The proximal end portion of the nail pushing piece is connected to the handle and its extension direction is consistent with that of the nail pushing piece body.

3. The vascular suture device according to claim 1, characterized in that: The proximal end and the distal end of the abutment surface of the staple-pushing particle which are away from the suturing staple are bent in a direction opposite to the bending direction of the staple cartridge assembly, and the middle part of the abutment surface is a plane.

4. The vascular suture device according to claim 3, characterized in that: The length of the middle portion of the abutting surface accounts for 25-45% of the total length of the nail-pushing particle.

5. The vascular suture device according to claim 3, characterized in that: The proximal end and the distal end of the abutting surface are inclined surfaces, and the abutting surface is symmetrically arranged along the width direction thereof.

6. The vascular suture device according to claim 1, characterized in that: The two sides of the proximal end of the nail support are provided with upwardly extending limit protrusions, and the nail magazine assembly has a limit groove matched with the limit protrusions. When the nail magazine assembly is switched from an open state to a closed state, the limit protrusions are stuck in the limit grooves and prevent the nail magazine assembly from continuing to rotate downward to maintain the closed state; when the nail magazine assembly is switched from a closed state to an open state, the proximal end surface of the limit protrusion is pressed against the nail magazine assembly and prevents the nail magazine assembly from continuing to rotate upward to maintain an open state at a certain angle.

7. The vascular suture device according to claim 1, characterized in that: The width of the distal end of the nail support and the nail magazine assembly gradually decreases from near to far.

8. The vascular suture device according to any one of claims 1 to 7, characterized in that: The left nail wall also includes a through channel 1 and a left through hole 2 in sequence between the cable fixing end 1 and the left through hole 2, and the cable turning channel 1 includes a left through hole 3, a through channel 2, a through channel 3 and a through channel 4 arranged in sequence, and a through channel 5 is also arranged at the upper end of the through channel 4, and the through channel 5 extends from the left nail wall to the nail pushing groove; the right nail wall also includes a through channel 6 and a right through hole 2 in sequence between the cable fixing end 2 and the right nail accommodating cavity, and the cable turning channel 2 includes a right through hole 3, a through channel 7, a through channel 8 and a through channel 9 arranged in sequence, and a through channel 10 is also arranged at the upper end of the through channel 9, and the through channel 10 extends from the right nail wall to the nail pushing groove.

9. The vascular suture device according to any one of claims 1 to 7, characterized in that: The cable comprises a free end 1 of the cable, a first oblique segment, a second arc segment, a third oblique segment, a fourth arc segment, a fifth upward segment, a sixth horizontal segment, a seventh downward segment, an eighth arc segment, a ninth oblique segment, a tenth arc segment, an eleventh oblique segment and a free end 2 of the cable, the free end 1 of the cable is fixedly arranged at one of the fixed ends of the cable, the free end 2 of the cable is fixedly arranged at the second fixed end of the cable, the first oblique segment passes through the through channel 1 and the left through hole 2 respectively, the second arc segment repeatedly passes through the left nail receiving cavity and the left through hole 1 in sequence, and the second arc segment is pressed on the push At the top of the nail particle, the third oblique segment passes through the left through hole and through channel two in sequence, the fourth arc segment passes through through channel three, the fifth ascending segment passes through through channel four, the sixth horizontal segment passes through through channel five, the nail pushing groove and through channel ten respectively, the seventh descending segment passes through through channel nine, the eighth arc segment passes through through channel eight, the ninth oblique segment passes through through channel seven and right through hole three, the tenth arc segment repeats passing through the right nail accommodating cavity and the right through hole one in sequence, the eleventh oblique segment passes through the right through hole two and through channel six, and the free end two of the cable is fixed to the fixed end two of the cable.

Images