Distribution feed mechanism for continuous feed forceps

Abstract

The application belongs to the technical field of medical devices, and particularly relates to a distributed feeding mechanism applied to a continuous clip applier. The application comprises a continuous clip applier main body, the continuous clip applier main body is provided with a pipe rod barrel, the pipe rod barrel is provided with a ligature clip conveying element and a distributed feeding type clamp head assembly. In the natural state during use, the distributed feeding type clamp head assembly is in a semi-closed state, the natural state of the clamp head in the structural design is semi-closed, the opening of the clamp head during loading is opened by the ligature clip, the clamp head and the ligature clip always maintain contact during the opening process, and the mechanism for driving the clamp head to close does not retreat again during one clip application process, does not have additional system impact, is reasonable in structure, and is relatively strong in practicality.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of medical devices, and relates to a distributed feeding mechanism applied to a continuous firing clip applier. BACKGROUND

[0002] The existing technologies such as patents 202111376487.X and 202111376475.7 disclose that the natural state of the clamp head is fully open, and the corresponding mechanism is needed to compress the clamp head to a semi-closed state, then the ligature clip is filled, and after the filling is completed, the compression mechanism is retracted, the clamp head is opened, the filled ligature clip is opened, and the blood vessel is closed. However, in the implementation process, the second opening of the clamp head and the opening of the ligature clip are completed at the same time in a very short time, which is too high a requirement for the response speed of the whole system, and the retraction of the compression mechanism during the second opening of the clamp head will cause a certain impact on the whole device, affecting the operation comfort and actual use experience.

[0003] In order to overcome the shortcomings of the prior art, people have explored various solutions, such as a continuous firing clip applier disclosed in Chinese patent [application number: 202111376487.X], which comprises a clip applier shell, a clamp head push rod connected to the clip applier shell and provided with a clamp head at one end of the clamp head push rod, the clamp head push rod can drive the clamp head to open or clamp, the clip applier shell is provided with a clip mounting structure, and a first feeding mechanism and a second feeding mechanism are further provided, the driving handle pushes the push structure into the first feeding space through the first feeding mechanism, and the driving handle pushes the push structure into the second feeding space through the second feeding mechanism. SUMMARY

[0004] The purpose of the present application is to provide a distributed feeding mechanism applied to a continuous firing clip applier to solve the above problems.

[0005] In order to achieve the above purpose, the following technical scheme is adopted:

[0006] A distributed feeding mechanism applied to a continuous firing clip applier, comprising a continuous firing clip applier main body, a pipe rod barrel is arranged on the continuous firing clip applier main body, a ligature clip conveying piece and a distributed feeding type clamp head assembly are arranged in the pipe rod barrel, a trigger that can rotate is arranged in the continuous firing clip applier main body, a clamp head feeding angle adjusting piece is arranged on the trigger, and the distributed feeding type clamp head assembly is connected with the clamp head feeding angle adjusting piece.

[0007] In the above-mentioned distributed feeding mechanism applied to a continuous firing clip applier, the distributed feeding type clamp head assembly comprises a clamp head arranged in the pipe rod barrel, a connecting bracket is arranged at the tail of the clamp head, a sliding connecting piece is arranged in the pipe rod barrel, and the connecting bracket is in sliding cooperation with the sliding connecting piece.

[0008] In the distribution feeding mechanism applied to the continuous firing clip applier, the sliding connecting piece comprises a sliding sleeve arranged in the pipe rod barrel, a guide groove is arranged in the sliding sleeve, a protruding block is arranged on the connecting support, the protruding block extends into the guide groove and the protruding block and the guide groove are in sliding fit.

[0009] In the distribution feeding mechanism applied to the continuous firing clip applier, the protruding block is in cylindrical shape, an inclined surface is arranged on the jaw, the inclined surface on the jaw is oppositely arranged with the sliding sleeve, a stop rod connecting piece is arranged between the sliding sleeve and the main body of the continuous firing clip applier, and the stop rod connecting piece is in abutting fit with the sliding sleeve.

[0010] In the distribution feeding mechanism applied to the continuous firing clip applier, the stop rod connecting piece comprises a sliding sleeve stop rod arranged between the sliding sleeve and the main body of the continuous firing clip applier, the sliding sleeve stop rod is located in the pipe rod barrel, and the sliding sleeve stop rod is in abutting fit with the sliding sleeve.

[0011] In the distribution feeding mechanism applied to the continuous firing clip applier, a middle fixing seat is arranged in the main body of the continuous firing clip applier, a stop rod connecting barrel is arranged in the middle fixing seat, the sliding sleeve stop rod penetrates through the stop rod connecting barrel, and the middle fixing seat and the stop rod connecting barrel are in rotary fit with the main body of the continuous firing clip applier.

[0012] In the distribution feeding mechanism applied to the continuous firing clip applier, a horizontal reciprocating linear motion pushing seat is arranged in the main body of the continuous firing clip applier, the sliding sleeve stop rod is fixedly connected with the pushing seat, a side portion of the pushing seat is connected with a jaw feeding angle adjusting piece, the pushing seat and the stop rod connecting barrel are connected through a spring, one end of the spring is connected with the pushing seat, and the other end of the spring is connected with the stop rod connecting barrel.

[0013] In the distribution feeding mechanism applied to the continuous firing clip applier, the jaw feeding angle adjusting piece comprises a trigger connecting rod arranged on a trigger, a cam groove is arranged in the trigger connecting rod, a cylindrical pin is arranged on a side portion of the pushing seat, the cylindrical pin extends into the cam groove and the cylindrical pin and the cam groove are in sliding fit.

[0014] In the distribution feeding mechanism applied to the continuous firing clip applier, a bottom connecting block is arranged on the bottom of the pushing seat, an abutting pushing block is arranged on the trigger, the abutting pushing block corresponds to the position of the bottom connecting block, and the abutting pushing block and the trigger connecting rod are staggered.

[0015] In the distribution feeding mechanism applied to the continuous firing clip applier, the ligature clip conveying piece comprises a ligature clip feeding unit arranged in the pipe rod barrel, and the ligature clip feeding unit corresponds to the position of the jaw.

[0016] Compared with the prior art, the present application has the advantages of:

[0017] 1、The distributed feeding type forceps head assembly is in a semi-closed state in a natural state during use, at this time, the trigger is pulled, the distributed feeding type forceps head assembly is closed through the forceps head feeding angle adjusting piece on the trigger, at the same time, the ligature clip is sent into the distributed feeding type forceps head assembly through the ligature clip conveying piece, and the distributed feeding type forceps head assembly is opened by the ligature clip, and the blood vessels or tissues are clamped, the trigger is continuously pulled, the distributed feeding type forceps head assembly is closed through the forceps head feeding angle adjusting piece, and finally the ligature clip is closed, after the trigger is released, the system is automatically reset, the natural state of the forceps head in the structure design is semi-closed, the opening of the forceps head during loading is opened by the ligature clip, the forceps head and the ligature clip always maintain contact during the opening process, and the mechanism for driving the forceps head to close does not retreat again in the process of one clamping operation, there is no additional system impact, the structure is reasonable, and the practicality is high.

[0018] 2、The forceps head in the present application is opened by the corresponding guide groove in the initial state of the clamping device, and the structure is reasonable and compact.

[0019] Other advantages, objects and features of the present application will be embodied in part by the following description, and will be understood by those skilled in the art through research and practice of the present application. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 is a structural schematic diagram of the present application.

[0021] Figure 2 is a structural schematic diagram of the present application.

[0022] Figure 3 is a structural schematic diagram of the present application.

[0023] Figure 4 is a structural schematic diagram of the present application.

[0024] Figure 5 is a structural schematic diagram of the present application.

[0025] In the figure: the continuous clamping forceps main body 1, the pipe rod barrel 2, the ligature clip conveying piece 3, the distributed feeding type forceps head assembly 4, the trigger 5, the forceps head feeding angle adjusting piece 6, the forceps head 7, the connecting support 8, the sliding connecting piece 9, the sliding sleeve 10, the guide groove 11, the resistance rod connecting piece 111, the protruding block 12, the sliding sleeve resistance rod 122, the middle fixed seat 13, the resistance rod connecting barrel 14, the pushing seat 15, the spring 16, the trigger connecting rod 17, the cam groove 18, the cylindrical pin 19, the bottom connecting block 20, the resistance pushing block 21, and the ligature clip feeding unit 22. DETAILED DESCRIPTION

[0026] The application will be further described in conjunction with the drawings.

[0027] As Figures 1-5 shown, a distribution feeding mechanism applied to a continuous application clip applier, comprising a continuous application clip body 1, the continuous application clip body 1 is provided with a tube rod barrel 2, the tube rod barrel 2 is provided with a ligature clip conveying element 3 and a distribution feeding type jaw assembly 4, the continuous application clip body 1 is provided with a rotatable trigger 5, the trigger 5 is provided with a jaw feeding angle adjusting element 6, the distribution feeding type jaw assembly 4 is connected with the jaw feeding angle adjusting element 6.

[0028] In this embodiment, in the natural state during use, the distribution feeding type jaw assembly 4 is in a semi-closed state, at this time, the trigger 5 is pulled, the distribution feeding type jaw assembly 4 is closed by the jaw feeding angle adjusting element 6 on the trigger 5, at the same time, the ligature clip is sent into the distribution feeding type jaw assembly 4 by the ligature clip conveying element 3, and the distribution feeding type jaw assembly 4 is opened by the ligature clip, waiting for the clip to close the blood vessels or tissues, the trigger 5 is continuously pulled, the distribution feeding type jaw assembly 4 is closed by the jaw feeding angle adjusting element 6, and finally the ligature clip is closed, after the trigger 5 is released, the system is automatically reset, the natural state of the jaw in the structure design is semi-closed, the opening of the jaw during loading is opened by the ligature clip, the jaw and the ligature clip always maintain contact during opening, and the mechanism for driving the jaw to close does not retreat twice in the process of a clip application, there is no additional system impact, the structure is reasonable, and the practicality is relatively strong.

[0029] As Figures 1-5 shown, the distribution feeding type jaw assembly 4 comprises a jaw 7 arranged in the tube rod barrel 2, the tail of the jaw 7 is provided with a connecting bracket 8, the tube rod barrel 2 is provided with a sliding connecting element 9, and the connecting bracket 8 and the sliding connecting element 9 are in sliding fit.

[0030] Specifically, in use, the head 7 is in a semi-closed state in a natural state, at this time, pull the trigger 5, the head 7 is closed by the head feeding angle adjusting member 6 on the trigger 5, at the same time, the ligature clip is sent into the head 7 by the ligature clip conveying member 3, and the head 7 is opened by the ligature clip, and the ligature clip is closed, the trigger 5 is continuously pulled, the head 7 is closed by the head feeding angle adjusting member 6, and the ligature clip is finally closed, after the trigger 5 is released, the system is automatically reset, the head 7 in the structure design is in a semi-closed state in a natural state, the opening of the head 7 in the loading process is opened by the ligature clip, the head 7 and the ligature clip are in contact during the opening process, and the mechanism for driving the head 7 to close does not retreat again in the process of one time clamping work, there is no additional system impact, the structure is reasonable, and the practicability is high, the sliding connecting member 9 is used to connect the connecting support 8, and the opening and closing adjustment of the head 7 is facilitated.

[0031] In combination with Figure 2 , Figure 4 It is shown that the sliding connecting member 9 comprises a sliding sleeve 10 arranged in the pipe rod barrel 2, the sliding sleeve 10 is provided with a guide groove 11, the connecting support 8 is provided with a protruding block 12, the protruding block 12 extends into the guide groove 11, and the protruding block 12 and the guide groove 11 are in sliding fit.

[0032] In this embodiment, when the clamping is in an initial (reset) state, the head 7 is strongly pulled open by the protruding block 12 on the connecting support 8 in cooperation with the guide groove 11 on the sliding sleeve 10.

[0033] The protruding block 12 is in a cylindrical shape, the head 7 is provided with an inclined surface, the inclined surface on the head 7 is oppositely arranged with the sliding sleeve 10, the sliding sleeve 10 and the connecting support 1 are provided with a stop rod connecting member 111, and the stop rod connecting member 111 is in abutting fit with the sliding sleeve 10.

[0034] In this embodiment, when it is necessary to completely close the head 7, the sliding sleeve 10 is moved to the end close to the head 7, the sliding sleeve 10 can close the head 7 by cooperation of the inclined surface, the stop rod connecting member 111 is used to connect the sliding sleeve 10, and the movement of the sliding sleeve 10 is facilitated.

[0035] In combination with Figures 2-3 It is shown that the stop rod connecting member 111 comprises a sliding sleeve stop rod 122 arranged between the sliding sleeve 10 and the connecting support 1, the sliding sleeve stop rod 122 is located in the pipe rod barrel 2, and the sliding sleeve stop rod 122 is in abutting fit with the sliding sleeve 10.

[0036] In this embodiment, the sliding sleeve stop rod 122 is used to connect the sliding sleeve 10, and the movement of the sliding sleeve 10 is facilitated.

[0037] The continuous firing clip applier body 1 is provided with a middle fixed seat 13, the middle fixed seat 13 is provided with an abutment rod connecting barrel 14, the sliding sleeve abutment rod 122 penetrates through the abutment rod connecting barrel 14, and the middle fixed seat 13 and the abutment rod connecting barrel 14 are rotationally matched with the continuous firing clip applier body 1.

[0038] In the embodiment, the middle fixed seat 13 is used to install and fix the abutment rod connecting barrel 14, the sliding sleeve abutment rod 122 penetrates through the abutment rod connecting barrel 14, and when the sliding sleeve abutment rod 122 needs to be moved, the sliding sleeve abutment rod 122 can be moved, and the sliding sleeve abutment rod 122 can slide horizontally along the axial direction of the abutment rod connecting barrel 14.

[0039] The continuous firing clip applier body 1 is provided with a push seat 15 capable of reciprocating linearly in the horizontal direction, the sliding sleeve abutment rod 122 is fixedly connected with the push seat 15, the push seat 15 is connected with the jaw feeding angle adjusting piece 6, the push seat 15 is connected with the abutment rod connecting barrel 14 through the spring 16, one end of the spring 16 is connected with the push seat 15, and the other end of the spring 16 is connected with the abutment rod connecting barrel 14.

[0040] In the embodiment, the sliding sleeve abutment rod 122 is fixedly connected with the push seat 15, when the sliding sleeve abutment rod 122 needs to be moved, the trigger 5 is pulled, the push seat 15 is moved through the jaw feeding angle adjusting piece 6, and then the sliding sleeve abutment rod 122 is moved, and the spring 16 can automatically reset the push seat 15 after the trigger 5 returns to the initial position, so that manual resetting is not needed, and the operation is simple and convenient.

[0041] In combination Figure 2 As shown, the jaw feeding angle adjusting piece 6 includes a trigger connecting rod 17 arranged on the trigger 5, the trigger connecting rod 17 is provided with a cam groove 18, the push seat 15 is provided with a cylindrical pin 19, the cylindrical pin 19 extends into the cam groove 18, and the cylindrical pin 19 is slidably matched with the cam groove 18.

[0042] In the embodiment, during the pulling of the trigger, the cylindrical pin 19 is pushed to move forward through the cam groove 18 in the trigger connecting rod 17, and then the sliding sleeve 10 is pushed, so that the sliding sleeve 10 is separated from the jaw 7, and the jaw returns to the natural state.

[0043] In combination Figure 2 , Figure 3 As shown, the push seat 15 is provided with a bottom connecting block 20, the trigger 5 is provided with an abutment pushing block 21, the abutment pushing block 21 corresponds to the position of the bottom connecting block 20, and the abutment pushing block 21 is staggered with the trigger connecting rod 17.

[0044] In this embodiment, the trigger 5 is continuously pulled, the position of the sliding sleeve 10 is maintained through the cam groove 18 in the trigger connecting rod 17, and the jaw 7 is maintained in the natural state. At this time, the ligature clip is sent into the jaw 7, and the jaw 7 is opened by the ligature clip. The blood vessels or tissues are closed, and the trigger 5 is continuously pulled. The advancing seat 15 is pushed forward by abutting the pushing block 21, and the sliding sleeve 10 is moved forward to close the jaw 7. Finally, the ligature clip is closed.

[0045] In combination Figure 1 、 Figure 5 As shown in the figure, the ligature clip conveying part 3 includes a ligature clip feeding unit 22 arranged in the pipe rod barrel 2, and the ligature clip feeding unit 22 corresponds to the position of the jaw 7.

[0046] In this embodiment, the ligature clip feeding unit 22 can send the ligature clips in the pipe rod barrel 2 into the jaw 7 one by one to realize cooperation. Those skilled in the art should understand that the ligature clip conveying part 3 and the ligature clip feeding unit 22 are upper concepts, and the expanded structures of lower concepts are prior art. For reference, the patent with the application number CN202111376487.X and the patent name Continuous Application of Clip Applier can be referred to. Moreover, this structure is not the focus of the present application, and therefore will not be expanded again.

[0047] The working principle of the present application is:

[0048] When the clip applier is in the initial (reset) state, the jaw 7 is pulled open by the protruding block 12 on the connecting bracket 8, and the jaw 7 is pulled open by the protruding block 12 on the connecting bracket 8.

[0049] When it is necessary to completely close the jaw 7, the sliding sleeve 10 is moved towards the end close to the jaw 7, and the sliding sleeve 10 can fold and close the jaw 7 through the cooperation of the inclined surface. The sliding sleeve abutting rod 122 is used to connect the sliding sleeve 10, so as to facilitate the driving of the sliding sleeve 10 to move,

[0050] The middle fixed seat 13 is used to install and fix the abutting rod connecting barrel 14. When it is necessary to move the sliding sleeve abutting rod 122, the sliding sleeve abutting rod 122 can be moved. The sliding sleeve abutting rod 122 can slide horizontally along the axial direction of the abutting rod connecting barrel 14,

[0051] When it is necessary to move the sliding sleeve abutting rod 122, the trigger 5 is pulled, the advancing seat 15 is moved by the jaw feeding angle adjusting part 6, and the sliding sleeve abutting rod 122 is moved. The spring 16 can automatically reset the advancing seat 15 after the trigger 5 returns to the initial position, without manual resetting. The operation is simple and convenient,

[0052] During the trigger pulling process, the cylindrical pin 19 is pushed forward by the cam groove 18 in the trigger connecting rod 17, which in turn pushes the sliding sleeve 10 to separate from the jaw 7, so that the jaw returns to the natural state,

[0053] Continuously pulling the trigger 5, the position of the sliding sleeve 10 is maintained by the cam groove 18 in the trigger connecting rod 17, which in turn keeps the jaw 7 in the natural state. At this time, the ligature clip is sent into the jaw 7, and the jaw 7 is opened by the ligature clip. After the blood vessel or tissue is clamped, the trigger 5 is continuously pulled, the pusher seat 15 is pushed forward by the abutting push block 21, which in turn pushes the sliding sleeve 10 to move forward to close the jaw 7, and finally the ligature clip is closed,

[0054] The ligature clip feeding unit 22 can send the ligature clips in the pipe rod barrel 2 one by one into the jaw 7 to realize cooperation. The natural state of the jaw 7 in the structure design is half-closed. The opening of the jaw 7 during the loading process is opened by the ligature clip. The jaw 7 and the ligature clip always maintain contact during the opening process, and the mechanism for driving the jaw 7 to close does not retreat again in the process of one clamping operation, without additional system impact. The structure is reasonable and has strong practicability.

[0055] The specific embodiments described herein are merely illustrative of the spirit of the present application. Those skilled in the art of the present application can make various modifications or supplements to the described specific embodiments or use similar ways to replace them without deviating from the spirit of the present application.

[0056] Although the terms such as continuous clamping forceps body 1, pipe rod barrel 2, ligature clip conveying piece 3, distributed feeding type jaw assembly 4, trigger 5, jaw feeding angle adjusting piece 6, jaw 7, connecting bracket 8, sliding connecting piece 9, sliding sleeve 10, guide groove 11, abutting rod connecting piece 111, protruding block 12, sliding sleeve abutting rod 122, middle fixed seat 13, abutting rod connecting barrel 14, pusher seat 15, spring 16, trigger connecting rod 17, cam groove 18, cylindrical pin 19, bottom connecting block 20, abutting push block 21, ligature clip feeding unit 22, etc. are used more frequently in this paper, but the possibility of using other terms is not excluded. The use of these terms is only to facilitate the description and explanation of the essence of the present application. Any additional limitation by interpreting them is contrary to the spirit of the present application.

Claims

1. A distributed feed mechanism for a continuous-fire clamp, comprising a continuous-fire clamp body (1), wherein a tubular rod cylinder (2) is provided on the continuous-fire clamp body (1), characterized in that, The tube tube (2) is provided with a ligation clamp conveyor (3) and a distributed feed type clamp head assembly (4). The main body (1) of the continuous clamp is provided with a rotatable trigger (5). The trigger (5) is provided with a clamp head feed angle adjustment component (6). The distributed feed type clamp head assembly (4) is connected to the clamp head feed angle adjustment component (6). The distributed feed type clamp head assembly (4) includes a clamp head (7) disposed in the tube cylinder (2), the tail of the clamp head (7) is provided with a connecting bracket (8), the tube cylinder (2) is provided with a sliding connector (9), and the connecting bracket (8) and the sliding connector (9) are slidably engaged; The sliding connector (9) includes a sliding sleeve (10) disposed in the tube cylinder (2). The sliding sleeve (10) is provided with a guide groove (11). The connecting bracket (8) is provided with a protrusion (12). The protrusion (12) extends into the guide groove (11) and the protrusion (12) slides and engages with the guide groove (11). In a natural state, the pliers (7) are forcibly pulled open to a semi-closed state. When the trigger (5) is pulled, the pliers feed angle adjustment component (6) on the trigger (5) drives the distributed feed pliers assembly (4) to close. The ligation clip is sent into the distributed feed pliers assembly (4) through the ligation clip conveyor (3). The distributed feed pliers assembly (4) is opened by the ligation clip. When the trigger (5) is pulled continuously, the distributed feed pliers assembly (4) is closed by the pliers feed angle adjustment component (6).

2. The distributed feed mechanism for a continuous-fire clamp according to claim 1, characterized in that, The protrusion (12) is cylindrical, and the clamp head (7) is provided with an inclined surface. The inclined surface on the clamp head (7) is opposite to the sliding sleeve (10). A stop rod connector (111) is provided between the sliding sleeve (10) and the main body (1) of the continuous-fire clamp. The stop rod connector (111) abuts and cooperates with the sliding sleeve (10).

3. The distributed feed mechanism for a continuous-fire clamp according to claim 2, characterized in that, The abutment connector (111) includes a sliding sleeve abutment rod (122) disposed between the sliding sleeve (10) and the main body (1) of the continuous firing clamp. The sliding sleeve abutment rod (122) is located inside the tube cylinder (2) and abuts against the sliding sleeve (10).

4. The distributed feed mechanism for a continuous-fire clamp according to claim 3, characterized in that, The main body (1) of the continuous firing clamp is provided with a central fixing seat (13), and the central fixing seat (13) is provided with a connecting cylinder (14) for abutting rod. The sliding sleeve abutting rod (122) passes through the connecting cylinder (14). The central fixing seat (13) and the connecting cylinder (14) are respectively rotatably engaged with the main body (1) of the continuous firing clamp.

5. The distributed feed mechanism for a continuous-fire clamp according to claim 4, characterized in that, The main body (1) of the continuous-fire clamp is provided with a push seat (15) that can reciprocate linearly in the horizontal direction. The sliding sleeve abutment rod (122) is fixedly connected to the push seat (15). The side of the push seat (15) is connected to the clamp head feed angle adjustment component (6). The push seat (15) and the abutment rod connecting cylinder (14) are connected by a spring (16). One end of the spring (16) is connected to the push seat (15), and the other end is connected to the abutment rod connecting cylinder (14).

6. The distributed feed mechanism for a continuous-fire clamp according to claim 5, characterized in that, The clamp head feed angle adjustment component (6) includes a trigger link (17) provided on the trigger (5), a cam groove (18) provided in the trigger link (17), and a cylindrical pin (19) provided on the side of the push seat (15). The cylindrical pin (19) extends into the cam groove (18) and the cylindrical pin (19) slides in cooperation with the cam groove (18).

7. The distributed feed mechanism for a continuous-fire clamp according to claim 6, characterized in that, The bottom of the push base (15) is provided with a bottom connecting block (20), and the trigger (5) is provided with an abutting push block (21). The abutting push block (21) is positioned opposite to the bottom connecting block (20), and the abutting push block (21) is staggered with the trigger linkage (17).

8. The distributed feed mechanism for a rapid-fire clamp according to claim 7, characterized in that, The ligation clip delivery component (3) includes a ligation clip feeding unit (22) disposed inside the tube cylinder (2), and the position of the ligation clip feeding unit (22) corresponds to that of the clamp head (7).

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