Clamping forceps device

Abstract

Disclosed in the present application is a clamping forceps device, which comprises a magazine. A first clamping head and a second clamping head are mounted along a longitudinal direction of the magazine, and a U-shaped elastic piece is mounted on front faces of tail ends of the first clamping head and the second clamping head. A small wing structure extends from an inner side of the U-shaped elastic piece connected to the first clamping head, the small wing structure and the first clamping head form a feature groove on the magazine, and the function of the small wing structure is to prevent the U-shaped elastic piece from falling into the feature groove when the U-shaped elastic piece is in a compressed state during operation, so as to ensure the lateral stability of the U-shaped elastic piece. The front faces of the tail ends of the first clamping head and the second clamping head are respectively provided with a first welding spot and a second welding spot, which are used for ensuring that the U-shaped elastic piece will not fall off when compressed and rebounded during its movement.

Description

Clamping device

[0001] This application claims priority to two patent applications filed with the Chinese Patent Office on August 27, 2024, with application number CN202411179156.0 entitled "A clamping device for preventing deflection and rapid firing" and on August 21, 2025, with application number CN202511177518.7 entitled "Clamping device", the entire contents of which are incorporated herein by reference. Technical Field

[0002] This application belongs to the field of medical device technology, and in particular relates to a clamping forceps device. Background Technology

[0003] Modern surgical procedures are shifting from traditional large-area surgical wounds to minimally invasive surgeries with smaller incisions and localized procedures. Clips are being applied in this field. During surgery, ruptured blood vessels are clamped to close and stop bleeding, preventing continued bleeding that could lead to a drop in blood pressure and further blood loss. Compared to traditional hemostatic forceps, these clips can quickly close ruptured blood vessels, significantly reducing bleeding and lowering surgical risks.

[0004] Existing clip-applying forceps, when firing the ligation clip, use a reciprocating motion of the clip's spring to push the clip forward and clamp the blood vessel for closure. However, existing repeating clip-applying forceps are subject to repeated use during surgery, such as when medical staff change surgical positions, shake the instrument back and forth, or bump it on the sterile operating table before picking it up again. This repeated use during surgery can cause the forceps head and U-shaped spring to shift or detach during excessive impact, ultimately leading to problems such as flying clips or clip misalignment after firing the ligation clip, resulting in failure to close the blood vessel, increasing the operation time, and reducing the surgeon's efficiency. Technical issues

[0005] This application provides a clamping device that ensures the U-shaped spring and clamping head of the clamping device are stable and secure and do not fall off during the firing of the ligation clamp, ensuring that it is in the correct posture and position. The spring and the ligation clamp maintain a fixed distance of free travel during the movement, effectively preventing the driving spring from falling off the tail end of the ligation clamp after the ligation clamp is misaligned. The head end structure of the driving spring effectively prevents the ligation clamp from deflecting. Solution

[0006] To solve the above problems, the technical solution provided in this application is as follows:

[0007] This application provides a clamping device, which includes a magazine. A first clamping head and a second clamping head are mounted on the magazine along the longitudinal direction. A U-shaped spring is mounted on the front of the tail end of the first clamping head and the second clamping head. A small wing structure extends from the inner side of the U-shaped spring connecting to the first clamping head. The small wing structure and the first clamping head form a feature groove on the magazine. The function of the small wing structure is to prevent the U-shaped spring from falling into the feature groove when it is in a compressed state during operation, so as to ensure the lateral stability of the U-shaped spring.

[0008] The first clamping head and the second clamping head are respectively provided with a first solder point and a second solder point on the front of their tail ends to ensure that the U-shaped spring will not fall off after compression and rebound during the movement; a paddle is installed on the reverse side of the tail ends of the first clamping head and the second clamping head, and the paddle serves to open the first clamping head and the second clamping head.

[0009] In some embodiments of this application, a double-sided pusher clip is installed on the top of the magazine, a ligating clip is installed between the magazines, and the ligating clip is connected to the end of the double-sided pusher clip.

[0010] In some embodiments of this application, a first inclined plate and a second inclined plate are provided on both sides of the end of the double-sided push clamp, and an inclined groove is provided at the middle position of the end of the double-sided push clamp. The end of the inclined groove is connected to a first bending spring, a protruding structure and a second bending spring.

[0011] In some embodiments of this application, the ligation clip is provided with a first cylindrical structure and a second cylindrical structure, and the ligation clip is connected to the first bent spring and the second bent spring through two elastic elements.

[0012] In some embodiments of this application, the double-sided push clips reciprocate parallel to the axial direction of the magazine to push the ligation clip in the magazine to make a linear movement parallel to the magazine. Each time the double-sided push clips reciprocate, the ligation clip moves one pitch in a direction parallel to the magazine. The pitch is determined by the spacing of the array of springs of the double-sided push clips. During the return process of the double-sided push clips, the first and second bent springs at their ends will push the ligation clip at the ends to correct the position of the next ligation clip, so that the position of the next ligation clip in the magazine is not skewed or offset, and the installation position of the ligation clip in the magazine is reset.

[0013] In some embodiments of this application, the protruding structure has the function of pressing the ligation clip at the front end of the double-sided push clip, so that the tail of the ligation clip does not warp during the forward movement of the ligation clip, ensuring that the ligation clip moves smoothly in a straight line during the forward movement of the magazine, and preventing the ligation clip from protruding from the tail side in the forward direction of the ligation clip when the double-sided push clip pushes the ligation clip, which would cause the ligation clip to fail to close; the first inclined plate and the second inclined plate correspondingly push the first cylindrical structure and the second cylindrical structure, synchronously and symmetrically pushing the ligation clip forward, so as to ensure the stability of the ligation clip during the forward movement.

[0014] This application also provides a clamping device, including:

[0015] A magazine has a first surface and a second surface that are disposed opposite to each other;

[0016] The first clamping head includes a first clamping end and a first clamping arm and a second clamping arm that are fixedly connected to the first clamping end and disposed opposite to each other;

[0017] The second clamping head includes a second clamping end and a third clamping arm and a fourth clamping arm that are fixedly connected to the second clamping end and disposed opposite to each other; the first clamping arm and the third clamping arm are rotatably connected to the first surface, and the second clamping arm and the fourth clamping arm are rotatably connected to the second surface.

[0018] A spring sheet is disposed on the first surface and is respectively connected to the ends of the first clamping arm and the third clamping arm that are away from the first clamping end;

[0019] A paddle is disposed on the second surface and is slidably connected to the ends of the second clamping arm and the fourth clamping arm that are away from the second clamping end.

[0020] In some embodiments of this application, the clamping device further includes:

[0021] Multiple ligature clips are spaced apart inside the magazine;

[0022] A double-sided push clip is located on the top of the magazine and connected to the paddle.

[0023] The bilateral push clips reciprocate along the length of the magazine under the action of external force, and push the ligature clip forward as the bilateral push clips advance, so as to complete the firing of the ligature clip.

[0024] In some embodiments of this application, the paddle includes a first sub-paddle and a second sub-paddle;

[0025] One end of the first sub-paddle and the second sub-paddle has a sliding portion, and the sliding portion is slidably connected to the end of the second clamping arm and the fourth clamping arm away from the first clamping end, respectively;

[0026] The first sub-paddle and the second sub-paddle slide synchronously.

[0027] In some embodiments of this application, the paddle includes a paddle body, and the first sub-paddle and the second sub-paddle are respectively fixedly connected to the paddle body;

[0028] The paddle body is connected to the double-sided push clip.

[0029] In some embodiments of this application, the paddle body has a through groove, and the paddle further includes a third connector, one end of which is fixedly connected to the inner wall of the through groove, and the other end is bent and extends from the through groove toward the double-sided push clip.

[0030] The double-sided push clip also has a slot, and the third connector engages with the slot.

[0031] In some embodiments of this application, the bilateral push clip includes:

[0032] The main body of the push clip extends along the length of the magazine;

[0033] An extension structure is connected to the end of the push clip body; the extension structure is used to press down the tail end of the ligation clip;

[0034] The double-sided push clip has multiple first inclined plates and multiple second inclined plates on both sides. The multiple first inclined plates are spaced apart and connected to one side of the push clip body, and the multiple second inclined plates are spaced apart and connected to the other side of the push clip body. The first inclined plates and the second inclined plates are used to push the ligation clip forward.

[0035] In some embodiments of this application, the ligation clip is provided with a first limiting structure and a second limiting structure located on both sides of the ligation clip and connected to the ligation clip;

[0036] During the forward movement of the ligation clip, the first inclined plate abuts against the first limiting structure, and the second inclined plate abuts against the second limiting structure.

[0037] In some embodiments of this application, the first clamping end has a first limiting groove and the second clamping end has a second limiting groove. When the double-sided push clip pushes the ligation clip at the far end to the designated position, the first limiting structure and the second limiting structure enter the first limiting groove and the second limiting groove respectively and abut against the inner wall at the far end of the first limiting groove and the second limiting groove respectively.

[0038] In some embodiments of this application, the bilateral push clamp further includes a plurality of first support arms and a plurality of second support arms;

[0039] Multiple first inclined plates are respectively connected to one side of the push clamp body through multiple first support arms, and the first inclined plates are inclined relative to the corresponding first support arms;

[0040] Multiple second inclined plates are respectively connected to the other side of the push clamp body through multiple second support arms, and the multiple second inclined plates are inclined relative to the corresponding second support arms.

[0041] In some embodiments of this application, the first inclined plate and the second inclined plate are spring sheets.

[0042] In some embodiments of this application, the end of the push clip body is connected to a first bent spring and a second bent spring; the first bent spring and the second bent spring are respectively connected to both sides of the protruding structure;

[0043] As the bilateral push clips push the ligation clip at its far end forward, the first bent spring and the second bent spring abut against the outer wall of the elastic element at the tail of the ligation clip, and push the ligation clip forward under the action of elastic force.

[0044] In some embodiments of this application, the spring includes a first elastic arm, a second elastic arm, and a first connecting portion. The first elastic arm and the second elastic arm are disposed opposite to each other and are respectively connected to both ends of the first connecting portion. The first connecting portion is connected to the first surface of the magazine.

[0045] The first elastic arm and the second elastic arm are respectively engaged with the first clamping arm and the third clamping arm.

[0046] In some embodiments of this application, the first clamping arm has a first connecting groove, and the third clamping arm has a second connecting groove;

[0047] The end of the first elastic arm away from the first connecting portion has a first connecting member. The first connecting member extends from the first elastic arm in a direction perpendicular to the first surface. The first connecting member is received in the first connecting groove and engages with the first connecting groove.

[0048] The second elastic arm has a second connector at one end away from the first connecting portion. The second connector extends from the second elastic arm in a direction perpendicular to the first surface. The second connector is received in a second connecting groove and engages with the second connecting groove.

[0049] In some embodiments of this application, the tail ends of the first clamping arm and the third clamping arm are fixedly connected to the first elastic arm and the second elastic arm at a first connection point and a second connection point, respectively.

[0050] In some embodiments of this application, the first surface of the magazine has a feature groove;

[0051] The inner sidewall of the first elastic arm is provided with a limiting part, which is fixedly connected to the inner sidewall of the first elastic arm and extends from the inner sidewall of the first elastic arm toward the second elastic arm.

[0052] At least a portion of the end of the limiting portion away from the first elastic arm projects onto the first surface of the magazine and falls outside the feature groove. Beneficial effects

[0053] Compared with the prior art, the embodiments of this application provide a clamping device with the following advantages: 1) The pusher clip pushes the ligation clip in the track, and the left and right clamping heads hold the ligation clip, effectively maintaining the pre-tension of the ligation clip within the clamping heads during continuous firing. 2) The clamping heads and U-shaped spring clips use a novel structure to cooperate, and during instrument movement, the first and second clamping heads can press down on the U-shaped spring clips to prevent them from falling off when opening and closing. 3) After the first and second clamping heads press down on the U-shaped spring clips, spot welding is added at the tail of the first and second clamping heads and the two arms of the U-shaped spring clips to further increase the firmness of the instrument components. 4) This solves the problem of the instrument failing during operation due to vibration, drops, or impacts to the operating table when changing surgical positions during storage, transportation, and use by medical personnel, which can cause the clamping heads and U-shaped spring clips to detach. 5) The front end of the pusher clip has the function of pressing down on the ligation clip, preventing the tail of the ligation clip from warping during its forward movement. 6) During the process of pushing the ligation clip forward, the double rows of spring clips on both sides should be used to prevent deformation and failure of one side of the spring clip and insufficient thrust, which would cause the ligation clip to fail to reach the designated position. Attached Figure Description

[0054] To more clearly illustrate the technical solutions in the embodiments or prior art, the drawings used in the description of the embodiments or prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0055] Figure 1 is a schematic diagram of the assembly and mating of a clamping device provided in an embodiment of this application.

[0056] Figure 2 is a schematic diagram of the compression of the U-shaped spring after it is combined with the magazine and the paddle provided in the embodiment of this application.

[0057] Figure 3 is a schematic diagram of the U-shaped spring clip provided in the embodiment of this application after it is combined with the magazine and the paddle.

[0058] Figure 4 is a schematic diagram of the original state of the U-shaped spring after it is engaged with the magazine and the paddle provided in the embodiment of this application.

[0059] Figure 5 is a schematic diagram of the original state of the U-shaped spring clip provided in the embodiment of this application after it is engaged with the magazine and the paddle.

[0060] Figure 6 is a schematic diagram of the cooperation between the double-sided push clip, the ligation clip, and the magazine provided in the embodiment of this application.

[0061] Figure 7 is an enlarged view of point A in Figure 6.

[0062] Figure 8 is a schematic diagram of the double-sided push clamp provided in an embodiment of this application.

[0063] Figure 9 is an enlarged view of point B in Figure 8.

[0064] Figure 10 is a schematic diagram of the installation of the first clamping head, the second clamping head, and the double-sided push clamping plates in a clamping device provided in an embodiment of this application.

[0065] Figure 11 is a three-dimensional schematic diagram of the first clamping head in Figure 1.

[0066] Figure 12 is a three-dimensional schematic diagram of the second clamping head in Figure 1.

[0067] Figure 13 is a top view of the double-sided push clamp shown in Figure 8.

[0068] Figure 14 is a schematic diagram of the double-sided push clamp shown in Figure 13 from another angle.

[0069] Figure 15 is an enlarged view of point C in Figure 14.

[0070] Figure 16 is a schematic diagram of the double-sided push clip (with ligation clip) shown in Figure 8.

[0071] Figure 17 is an enlarged view of point D in Figure 16.

[0072] Figure 18 is a schematic diagram of the double-sided push clip (with ligation clip) shown in Figure 16 from another angle.

[0073] Figure 19 is an enlarged view of point E in Figure 18.

[0074] Figure 20 is a schematic diagram of the ligation clip being pushed to the first clamping head and the second clamping head by the bilateral push clips and being clamped by the first clamping head and the second clamping head.

[0075] Figure 21 is a schematic diagram of the paddle shown in Figure 3 and the double-sided push clip shown in Figure 8.

[0076] Figure 22 is an enlarged view of point F in Figure 21.

[0077] The attached figures are labeled as follows:

[0078] 100. Clamping device; 1. First clamping head; 2. Feature groove; 3. Limiting part; 4. Spring piece; 5. Second clamping head; 6. First connecting post; 7. Second connecting post; 8. Paddle; 9. Magazine; 10. First tail end; 11. Second tail end; 23. Double-sided push clamping piece; 15. First inclined plate; 18. Second inclined plate; 20. Inclined groove; 19. First bent spring piece; 21. Extending structure; 22. Second bent spring piece; 13. First limiting structure; 17. Second limiting structure; 14. Elastic element; 141. Arc groove;

[0079] 111. First clamping end; 110. First clamping arm; 120. Second clamping arm; 91. Second connecting portion; 92. First surface; 93. Second surface; 94. Receiving groove; 140. First receiving space; 540. Second receiving space; 130. First limiting groove; 530. Second limiting groove; 112. First connecting end; 113. First connecting groove; 116. First connecting post; 52. Second connecting end; 53. Second connecting groove; 117. Second connecting post;

[0080] 41. First elastic arm; 42. Second elastic arm; 43. Connecting part; 46. Connecting groove; 81. First sub-paddle; 82. Second sub-paddle; 80. Paddle body; 83. Sliding part; 84. Through groove; 85. Third connecting piece; 230. Push clamp body; 231. Multiple first support arms; 232. Second support arm; 233. Slot.

[0081] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0082] As shown in Figures 1, 2, 3, 4, and 5, this embodiment of the invention provides an anti-skewed rapid-fire clamping device, including a magazine 9. A first clamping head 1 and a second clamping head 5 are mounted longitudinally on the magazine 9. The first clamping head 1 and the second clamping head 5 cannot move back and forth within the magazine 9, but can rotate around a preset fulcrum. A U-shaped spring piece 4 is mounted on the front of the rear end of the first clamping head 1 and the second clamping head 5. A small wing structure 3 extends from the inner side of the U-shaped spring piece 4 connected to the first clamping head 1. The small wing structure 3 and the first clamping head 1 form a feature groove 2 on the magazine 9. The function of the small wing structure 3 is to prevent the U-shaped spring piece 4 from falling into the feature groove 2 when it is in a compressed state during operation, thereby ensuring the lateral stability of the U-shaped spring piece 4.

[0083] The first clamping head 1 and the second clamping head 5 are respectively provided with a first connection point 6 and a second connection point 7 on their front ends. These are used to ensure that the U-shaped spring 4 will not fall off after compression and rebound during movement, thus ensuring the stability of the instrument's movement and preventing the instrument from flying nails. The first connection point 6 and the second connection point 7 can be a first connection weld point and a second connection weld point, that is, the tail ends of the first clamping head 1 and the second clamping head 5 are welded to the U-shaped spring 4. A lever 8 is installed on the reverse side of the tail of the first clamping head 1 and the second clamping head 5. The lever 8 serves to open the first clamping head 1 and the second clamping head 5. In this embodiment, the lever 8 is installed on the tail end 10 of the first clamping head 1 and the tail end 11 of the second clamping head 5. Compared with the traditional U-shaped spring design, the U-shaped spring 4 of this invention adopts a 180° flip assembly. During movement, the first clamping head 1 and the second clamping head 5 press down on the U-shaped spring 4 and will not pop out vertically, causing the instrument firing ligation clip to fail.

[0084] As shown in Figures 6, 7, 8, 9, and 10, the clamping device 100 also includes double-sided push-clamp plates 23. The magazine 9 has a recessed receiving groove formed from the second surface 93 towards the first surface. Both the ligation clip 16 and the double-sided push-clamp plates 23 are disposed within the receiving groove. The ligation clip 16 is close to the first surface 92, meaning the double-sided push-clamp plates 23 are located above the ligation clip 16. The double-sided push-clamp plates 23 are structural features formed by stamping, bending, and plastic deformation of stainless steel. The two sides of the double-sided push-clamp plates 23 are composed of double spring pieces, with an array of equidistant spring pieces along their axis. The ligation clip 16 is installed between the magazines 9, and the ligation clip 16 is connected to the end of the double-sided push-clamp plates 23. In this embodiment, the first clamping head 1 and the second clamping head 5 are mounted on the magazine 9. The position of the double-sided push-clamp plates 23 in Figure 10 is its initial position, and the double-sided push-clamp plates 23 move back and forth.

[0085] As shown in Figure 9, the two sides of the end of the double-sided push clip 23 are provided with a first inclined plate 15 and a second inclined plate 18. The middle position of the end of the double-sided push clip 23 is provided with an inclined groove 20. The end of the inclined groove 20 is connected to a first bent spring 19, a protruding structure 21 and a second bent spring 22. As shown in Figure 7, the ligation clip 16 is provided with a first cylindrical structure 13 and a second cylindrical structure 17. The ligation clip 16 is connected to the first bent spring 19 and the second bent spring 22 through two elastic elements 14.

[0086] The inclined groove 20 at the end of the double-sided push clip 23 ensures that it can slide back to the rear. It is necessary to push the tail of the ligation clip 16 and effectively push the ligation clip 16 forward under the action of elastic force. The first bent spring 19 and the second bent spring 22 connected on both sides of the head of the push clip 16 have the function of pushing the ligation clip 16, which is offset from the axial position, to the center position and correcting its installation position in the magazine 9, thus achieving the function of resetting.

[0087] Specifically, the double-sided push clip 23 reciprocates axially in the magazine 9 to push the ligating clip 16 to move in a straight line parallel to the magazine 9. Each time the double-sided push clip 23 reciprocates, the ligating clip 16 moves one pitch in a direction parallel to the magazine 9. The pitch is determined by the spacing of the array of springs of the double-sided push clip 23. During the return process, the first bent spring 19 and the second bent spring 22 at the end of the double-sided push clip 23 will push the ligating clip 16 at the end to correct the position of the next ligating clip 16, so that the position of the next ligating clip 16 in the magazine is not skewed or offset, and the ligating clip 16 is reset in the installation position of the magazine 9.

[0088] The protruding structure 21 has the function of pressing down on the ligation clip 16 at the front end of the double-sided push clip 23, so that the tail of the ligation clip 16 does not warp during the forward movement, ensuring that the ligation clip 16 moves smoothly in a straight line during the forward movement of the magazine 9, and preventing the ligation clip 16 from protruding from the tail side in the forward direction when the double-sided push clip 23 pushes the ligation clip 16, which would cause the ligation clip 16 to fail to close. The first inclined plate 15 and the second inclined plate 18 push the first cylindrical structure 13 and the second cylindrical structure 17 respectively, and push the ligation clip 16 forward synchronously and symmetrically, so as to ensure the stability of the ligation clip 16 during the forward movement.

[0089] In the above-described process of firing the ligation clips in the clamping device of the present invention, the first clamping head 1 and the second clamping head 5 are fixed on the magazine 9. The first clamping head 1 and the second clamping head 5 are opened by the rotation of the first clamping head 1 and the second clamping head 5 controlled by the sliding of the lever 8 on the tail end 10 of the first clamping head 1 and the tail end 11 of the second clamping head 5. When the lever 8 slides to the tail end of the first clamping head 1 and the second clamping head 5, the first clamping head 1 and the second clamping head 5 are opened to their maximum angle. At the same time, the U-shaped spring 4 is in a compressed state. Immediately afterwards, the clamping device moves to the front end of the first clamping head 1 and the second clamping head 5. At this time, the first clamping head 1 and the second clamping head 5 return to their original initial state under the rebound of the compressive force of the U-shaped spring 4, as shown in Figure 4. This cycle repeats until all ligation clips 16 are fired. During the movement of the device, the U-shaped spring 4 and the lever 8 repeatedly move, causing the U-shaped spring 4 to undergo plastic deformation. This reduces the width of the two spring arms, making the U-shaped spring easy to fall off. Adding a first weld point 6 and a second weld point 7 to the tail end 10 of the first clamping head 1 and the tail end 11 of the second clamping head 5 with the U-shaped spring 4 can ensure that the U-shaped spring 4 will not fall off after compression and rebound during the movement, thus ensuring the stability of the clamping device.

[0090] Please refer to Figures 1 to 22. This application also provides a clamping device 100, which includes: a magazine 9 having a first surface 92 and a second surface 93 disposed opposite to each other; a first clamping head 1 including a first clamping end 111 and a first clamping arm 110 and a second clamping arm 120 respectively fixedly connected to and disposed opposite to the first clamping end 111; a second clamping head 5 including a second clamping end 511 and a third clamping arm 510 and a fourth clamping arm 520 respectively fixedly connected to and disposed opposite to the second clamping end 511; the first clamping... The holding arm 110 and the third clamping arm 510 are rotatably connected to the first surface 92, and the second clamping arm 120 and the fourth clamping arm 520 are rotatably connected to the second surface 93; the spring piece 4 is disposed on the first surface 92 and is respectively connected to the ends of the first clamping arm 110 and the third clamping arm 510 away from the first clamping end 111; the paddle 8 is disposed on the second surface 93 and is respectively slidably connected to the ends of the second clamping arm 120 and the fourth clamping arm 520 away from the second clamping end 511. This application prevents the first clamping head 1, the second clamping head 5, and the spring 4 from shifting or falling off during excessive impact by having the first clamping arm 110 of the first clamping head 1 and the third clamping arm 510 of the second clamping head 5 rotatably connected to the magazine 9 and the spring 4, respectively, and by having the second clamping arm 120 of the first clamping head 1 and the fourth clamping arm 520 of the second clamping head 5 rotatably connected to the second surface 93 of the magazine 9 and the spring 8 slidably connected to the lever 8. This reduces the probability of flying nails or misalignment of the ligation clip after the instrument fires the ligation clip, thereby improving the surgeon's efficiency.

[0091] Specifically, the first clamping head 1 and the second clamping head 5 cannot move back and forth in the magazine 9, but can rotate around a preset fulcrum. A spring piece 4 is mounted on the front of the tail of the first clamping head 1 and the second clamping head 5. The spring piece 4 can be U-shaped or other shapes. A limiting part 3 extends from the inner side of the spring piece 4 connected to the first clamping head 1. The limiting part 3 is fixedly connected to the inner wall of the first elastic arm 41 and extends from the inner wall of the first elastic arm 41 toward the second elastic arm 42. A feature groove 2 is formed on the magazine 9. The feature groove 2 is recessed from the first surface 92 of the magazine 9. At least a portion of the end of the limiting part 3 away from the first elastic arm 110 (see below) projected onto the first surface of the magazine 9 falls outside the feature groove 2. The function of the limiting part 3 is to prevent the spring piece 4 from falling into the feature groove 2 when it is in a compressed state during operation, thus ensuring the lateral stability of the spring piece 4. When the spring piece 4 switches from the normal state shown in Figure 1 to the compressed state shown in Figure 2, if the limiting part 3 is not present, the clamping arm connected to the first clamping head 1 may fall into the feature groove 2, and the lateral stability of the spring piece 4 will be affected.

[0092] In some embodiments of this application, the limiting part 3 may be a limiting part in the shape of a small wing.

[0093] In some embodiments of this application, the limiting part 3 is preferably configured as a triangular cross-section with a gradually increasing width along the length direction of the first elastic arm 110 from the front end near the first elastic arm 110 to the rear end away from the first elastic arm 110. This is so that when the first elastic arm 110 and the third elastic arm 510 move towards each other, the front end of the limiting part 3 is narrower and the rear end is relatively wider, which will prevent the front and rear ends of the limiting part 3 on the first elastic arm 110 from colliding with the third elastic arm 510. Moreover, the distance after moving towards each other will not be too large, which will cause the compression degree of the spring piece 4 to be too small, and the released elastic force will not be sufficient to drive the first clamping head 1 and the second clamping head 5 back to the initial closed state. At the same time, the width of the tail end of the limiting part 3 is configured to be greater than the width of the feature groove 2, so that the first elastic arm 110 will not fall into the feature groove 2 of the magazine 9 and the flying nail phenomenon will not occur.

[0094] In some embodiments, the limiting part 3 and the first elastic arm 110 are an integrated structure, so that the limiting part 3 and the first elastic arm 110 form a structurally stable whole.

[0095] In some embodiments, the limiting part 3 and the first elastic arm 110 are separate structures that cooperate with each other, so that the limiting part 3 can be easily removed and replaced from the first elastic arm 110.

[0096] Please refer to Figures 1 and 11. In some embodiments of this application, a first clamping arm 110 and a second clamping arm 120 extend from the first clamping end 111 and are disposed opposite to each other. The first clamping arm 110 is disposed on the first surface 92 of the magazine 9, and the second clamping arm 120 is disposed on the second surface 93 of the magazine 9. The first surface 92 and the second surface 93 are opposite surfaces of the magazine 9. A first receiving space 140 is provided between the first clamping end 111, the first clamping arm 110, and the second clamping arm 120, and one end of the magazine 9 is received in the first receiving space 140. The first clamping end 111 has a first limiting groove 130, which is used to limit the position of the first limiting structure 13 (see below) of the end clamping clip 16 (see below). The first clamping arm 110 has a first connecting end 112, and the first connecting end 112 has a first connecting groove 113. The first connecting groove 113 is used to cooperate with the spring 4 to connect the first clamping arm 110 and the spring 4. The first clamping arm 110 and the second clamping arm 120 each have a first connecting post 116. The first clamping arm 110 and the second clamping arm 120 are rotatably connected to the first surface 92 and the second surface 93 of the magazine 9 through the first connecting post 116, respectively.

[0097] Please refer to Figures 1 and 12. In some embodiments of this application, the third clamping arm 510 and the fourth clamping arm 520 extend from the second clamping end 511 and are disposed opposite to each other. The third clamping arm 510 is disposed on the first surface 92 of the magazine 9, and the fourth clamping arm 520 is disposed on the second surface 93 of the magazine 9. A second receiving space 540 is provided between the second clamping end 511, the third clamping arm 510, and the fourth clamping arm 520, and one end of the magazine 9 is received in the second receiving space 540. The second clamping end 511 has a second limiting groove 530, which is used to limit the position of the second limiting structure 17 of the end clamping clip 16 (see below). The third clamping arm 510 has a second connecting end 52, and the second connecting end 52 has a second connecting groove 53, which is used to cooperate with the spring 4 to connect the third clamping arm 510 and the spring 4. Both the third clamping arm 510 and the fourth clamping arm 520 have a second connecting post 117. The third clamping arm 510 and the fourth clamping arm 520 are rotatably connected to the first surface 92 and the second surface 93 of the magazine 9 through the second connecting post 117, respectively.

[0098] The spring clip 4 includes a first elastic arm 41, a second elastic arm 42, and a first connecting portion 43. The first elastic arm 41 and the second elastic arm 42 are arranged opposite to each other and are respectively connected to both ends of the first connecting portion 43. The first connecting portion 43 has a connecting groove 46. A second connecting portion 91 protruding from the magazine 9 is received in the connecting groove 46 to connect the spring clip 4 to the magazine 9 and to limit the position of the spring clip 4 on the magazine 9. The first elastic arm 41 and the second elastic arm 42 are respectively connected to the first clamping arm 110 and the third clamping arm 510. Specifically, the end of the first elastic arm 41 away from the first connecting portion 43 has a first connecting member 44. The first connecting member 44 extends from the first elastic arm 41 in a direction perpendicular to the first surface 92. The first connecting member 44 is received in the first connecting groove 113 and engages with the first connecting groove 113 to complete the initial connection between the first elastic arm 41 and the first clamping arm 110. The second elastic arm 42 has a second connector 45 at the end away from the first connecting portion 43. The second connector 45 extends from the second elastic arm 42 in a direction perpendicular to the first surface 92. The second connector 45 is received in the second connecting groove 53 and engages with the second connecting groove 53 so that the second elastic arm 42 and the third clamping arm 510 complete the initial connection.

[0099] In some embodiments of this application, since the openings of the first connecting groove 113 and the second connecting groove 53 are arranged opposite to each other in the direction of movement of the first elastic arm 41, the first connecting member 44 enters the first connecting groove 113 from the opening position of the first connecting groove 113, and the second connecting member 45 enters the second connecting groove 53 from the opening position of the second connecting groove 53. When the spring piece 4 switches from the normal state to the compressed state, the first connecting member 44 is easily dislodged from the first connecting groove 113, and the second connecting member 45 is easily dislodged from the second connecting groove 53. Therefore, the tail ends of the first clamping head 1 and the second clamping head 5 (i.e., the tail ends of the first clamping arm 110 and the third clamping arm 510) are respectively provided with a first connecting point 6 and a second connecting point 7. The tail ends of the first clamping arm 110 and the third clamping arm 510 are fixedly connected to the first elastic arm 41 and the second elastic arm 42 at the first connecting point 6 and the second connecting point 7, respectively, to ensure that the spring piece 4 will not fall off after compression and rebound during movement, to ensure the stability of the instrument movement, and to prevent the instrument from flying nails.

[0100] A lever 8 is installed on the reverse side of the tail of the first clamping head 1 and the second clamping head 5. The lever 8 serves to open the first clamping head 1 and the second clamping head 5. In this embodiment, the lever 8 is installed on the first tail end 10 of the first clamping head 1 and the second tail end 11 of the second clamping head 5. Compared with the traditional U-shaped spring clip design, the spring clip 4 in this application is assembled by flipping 180°. During the movement, the first clamping head 1 and the second clamping head 5 press down on the spring clip 4 and will not pop out vertically, causing the instrument firing ligation clip to fail.

[0101] Please refer to Figures 3, 5, 20, and 21. The paddle 8 includes a first sub-paddle 81, a second sub-paddle 82, and a paddle body 80. The first sub-paddle 81 and the second sub-paddle 82 are fixedly connected to the paddle body 80. In this embodiment, the first sub-paddle 81 and the second sub-paddle 82 extend from one end of the paddle body 80. The ends of the first sub-paddle 81 and the second sub-paddle 82 away from the paddle body 80 have sliding portions 83, which are slidably connected to the first tail end 10 of the second clamping arm 120 and the second tail end 11 of the fourth clamping arm 520, respectively. The fixed connection of the first sub-paddle 81 and the second sub-paddle 82 to the paddle body 80 facilitates the synchronous movement of the first sub-paddle 81 and the second sub-paddle 82.

[0102] As shown in Figures 6 to 15, the clamping device 100 also includes a double-sided push clamp 23. The magazine 9 has a recessed receiving groove 94 formed from the second surface 93 towards the first surface. Both the ligation clip 16 and the double-sided push clamp 23 are disposed within the receiving groove 94. The ligation clip 16 is close to the first surface 92, meaning the double-sided push clamp 23 is located above the ligation clip 16. The double-sided push clamp 23 is a structural feature formed by stamping, bending, and plastic deformation of stainless steel. The two sides of the double-sided push clamp 23 are composed of double spring pieces (i.e., the first inclined plate 15 and the second inclined plate 18 below), with an array of equidistant spring pieces along its axis. Multiple ligation clips 16 are installed inside the magazine 9, and one of the ligation clips 16 is connected to the end of the double-sided push clamp 23. In this embodiment, the first clamping head 1 and the second clamping head 5 are mounted on the magazine 9. The position of the double-sided push clamp 23 in Figure 10 is its initial position. The double-sided push clamp 23 moves back and forth along the length of the magazine 9.

[0103] As shown in Figures 9 and 13 to 15, the double-sided push clip 23 includes a push clip body 230, a plurality of first support arms 231, a plurality of second support arms 232, and an extension structure 21. The push clip body 230 extends along the length of the magazine 9. The plurality of first support arms 231 are spaced apart and connected to one side of the push clip body 230, and the plurality of second support arms 232 are spaced apart and connected to the other side of the push clip body 230. One first support arm 231 and one second support arm 232 are arranged opposite to each other. In some embodiments, the plurality of first support arms 231 and the plurality of second support arms 232 extend from opposite sides of the push clip body 230. A plurality of first inclined plates 15 and a plurality of second inclined plates 18 are provided on both sides of the double-sided push clip 23. The plurality of first inclined plates 15 are connected to a corresponding first support arm 231. The first inclined plate 15 is inclined relative to the corresponding first support arm 231, and the end of the first inclined plate 15 away from the first support arm 231 is lower than the end connected to the first support arm 231. Multiple second inclined plates 18 are respectively connected to a corresponding first support arm 231. The multiple second inclined plates 18 are inclined relative to the corresponding second support arm 232, and the end of the multiple second inclined plates 18 away from the second support arm 232 is lower than the end connected to the second support arm 232. The protruding structure 21 is fixedly connected to one end of the push clamp body 230. The protruding structure 21 and the push clamp body 230 are connected by an inclined groove 20, so that the height of the protruding structure 21 is lower than the height of the push clamp body 230.

[0104] The inclined groove 20 is located at the middle of the end of the push clip body 230, and the end of the inclined groove 20 is connected to a first bent spring 19 and a second bent spring 22. The first bent spring 19 and the second bent spring 22 are respectively connected to both sides of the protruding structure 21 and are integrally formed with the protruding structure 21. As shown in Figure 7, the ligation clip 16 is provided with a first limiting structure 13 and a second limiting structure 17. The ligation clip 16 is connected to the first bent spring 19 and the second bent spring 22 through two elastic members 14. The ligation clip 16 and the two elastic members 14 can be set separately or integrally. The two elastic members 14 can be regarded as part of the ligation clip 16. The tails of the two elastic members 14 are connected and have an arc-shaped groove 141.

[0105] Please refer to Figures 7 and 16 to 19. As the bilateral push-clamp plates 23 push the ligation clip 16 at its far end forward, the protruding structure 21 at the end of the bilateral push-clamp plates 23 presses against the tail of the ligation clip 16 and partially inserts into the arc-shaped groove 141. The first bent spring piece 19 and the second bent spring piece 22 abut against the outer walls of the tails of the two elastic members 14, and under the action of elastic force, effectively push the ligation clip 16 forward. The first limiting structure 13 and the second limiting structure 17 corresponding to the remaining ligation clips 16 abut against the corresponding first inclined plates 15 and second inclined plates 18, respectively, to push the ligation clip 16 forward.

[0106] Please refer to Figures 11, 12, and 20. When the double-sided push clip 23 pushes the end clamp 16 to the designated position, that is, the first limiting structure 13 and the second limiting structure 17 of the clamp 16 enter the first limiting groove 130 and the second limiting groove 530 respectively and abut against the inner wall of the front end of the first limiting groove 130 and the second limiting groove 530 respectively. The protruding structure 21 at the end of the double-sided push clip 23 disengages from the tail of the clamp 16. The protruding structure 21 moves back with the double-sided push clip 23 to the tail of the elastic member 14 of the next clamp 16 and presses against the tail of the elastic member 14 of the next clamp 16. The remaining first inclined plate 15 and second inclined plate 18 disengage from the first limiting structure 13 and the second limiting structure 17 corresponding to the corresponding clamp 16 and move back to abut against the first limiting structure 13 and the second limiting structure 17 corresponding to the next clamp 16. During the retraction of the bilateral push clip 23, since the first inclined plate 15 and the second inclined plate 18 are essentially spring clips, when they retract to the vicinity of the first limiting structure 13 and the second limiting structure 17 corresponding to the next ligation clip 16, the first inclined plate 15 and the second inclined plate 18 will pass over the first limiting structure 13 and the second limiting structure 17 corresponding to the next ligation clip 16, until they are removed from the top of the first limiting structure 13 and the second limiting structure 17 corresponding to the next ligation clip 16, at which point the bilateral push clip 23 stops retracting. When the bilateral push clip 23 advances again, the first inclined plate 15 and the second inclined plate 18 will abut against the first limiting structure 13 and the second limiting structure 17 of the corresponding ligation clip 16.

[0107] During the return process, the first bent spring clip 19 and the second bent spring clip 22 connected to both sides of the head of the double-sided push clip 23 have the function of pushing the ligature clip 16, which is offset from the axial position, to the center position and correcting its installation position in the magazine 9, thereby achieving a reset function.

[0108] Specifically, the double-sided push clip 23 reciprocates axially in the magazine 9 to push the ligating clip 16 to move in a straight line parallel to the magazine 9. Each time the double-sided push clip 23 reciprocates, the ligating clip 16 moves one pitch in a direction parallel to the magazine 9. The pitch is determined by the spacing of the array of springs of the double-sided push clip 23. During the return process, the first bent spring 19 and the second bent spring 22 at the end of the double-sided push clip 23 will push the ligating clip 16 at the end to correct the position of the next ligating clip 16, so that the position of the next ligating clip 16 in the magazine is not skewed or offset, and the ligating clip 16 is reset in the installation position of the magazine 9.

[0109] The extension structure 21 has the function of pressing the ligation clip 16 at the front end of the double-sided push clip 23, so that the tail of the ligation clip 16 does not warp during the forward movement, ensuring that the ligation clip 16 moves smoothly in a straight line during the forward movement of the magazine 9, and preventing the ligation clip 16 from extending from the tail side in the forward direction when the double-sided push clip 23 pushes the ligation clip 16, which would cause the ligation clip 16 to fail to close. The first inclined plate 15 and the second inclined plate 18 push the first limiting structure 13 and the second limiting structure 17 respectively, and push the ligation clip 16 forward synchronously and symmetrically, so as to ensure the stability of the ligation clip 16 during the forward movement.

[0110] Please refer to Figures 21 and 22. The end of the paddle body 80 of the paddle 8 away from the first sub-paddle 81 and the second sub-paddle 82 has a through groove 84. The paddle 8 also includes a third connector 85. One end of the third connector 85 is fixedly connected to the inner wall of the through groove 84, and the other end is bent and extends out from the through groove 84 toward the double-sided push clip 23.

[0111] Please refer to Figures 15, 19 and 22. The push-clamp body 230 of the double-sided push-clamp 23 also has a slot 233. The third connector 85 engages with the slot 233 to realize the connection between the paddle 8 and the double-sided push-clamp 23.

[0112] In other embodiments, the connection between the paddle 8 and the double-sided push clip 23 can also be achieved through other connection methods, and is not limited to the connection method shown in Figures 21 and 22.

[0113] In the above-mentioned clamping device of this application, during the firing and ligation clamping motion, the first clamping head 1 and the second clamping head 5 are fixed on the magazine 9. The double-sided push clamping plate 23 drives the paddle 8 to slide synchronously on the first tail end 10 of the first clamping head 1 and the second tail end 11 of the second clamping head 5, controlling the first clamping end 111 of the first clamping head 1 and the second clamping end 511 of the second clamping head 5 to rotate and open. When the paddle 8 slides to the tail end of the first clamping head 1 and the second clamping head 5, the first clamping head 1 and the second clamping head 5 are opened to the maximum angle. At the same time as the paddle 8, the spring plate 4 is in a compressed state, the first elastic arm 41 and the second elastic arm 42 approach each other, and the limiting part 3 approaches the second elastic arm 42. The clamping device 100 then moves as follows: The first elastic arm 41 and the second elastic arm 42 of the spring 4 return to their initial state under the compressive force of the spring 4, as shown in Figures 1 and 4. During this process, the first elastic arm 41 and the second elastic arm 42 respectively drive the first clamping arm 110 and the third clamping arm 510 to move towards each other. The first clamping arm 110 and the third clamping arm 510 respectively drive the second clamping arm 120 and the fourth clamping arm 420 to move towards each other. The first tail end 10 of the second clamping arm 120 and the second tail end 11 of the fourth clamping arm 420 open. The first sub-paddle 81 and the second sub-paddle 82 move along the direction close to the first clamping end 111 and the second clamping end 511 on the first tail end 10 of the second clamping arm 120 and the second tail end 11 of the fourth clamping arm 420. This cycle repeats until all ligation clamps 16 are fired. During the movement of the device, due to the continuous repetitive movement of the spring 4 and the lever 8, the spring 4 is prone to plastic deformation during the movement, and the width of the two spring arms will decrease, causing the U-shaped spring to easily fall off. By adding a first connection point 6 and a second connection point 7 to the U-shaped spring 4 at the first tail end 10 of the first clamping head 1 and the second tail end 11 of the second clamping head 5, it can be ensured that the spring 4 will not fall off after compression and rebound during the movement, thus ensuring the stability of the clamping device.

[0114] Compared with the prior art, the embodiments of this application provide an anti-deviation continuous firing clamp device, which has the following beneficial effects: 1) The push clamp plate pushes the ligation clamp in the track, and the left and right clamp heads of the clamping head hold the ligation clamp, which can effectively keep the ligation clamp pre-tightened in the clamp head and prevent it from flying out during continuous firing. 2) The clamping head and the U-shaped spring are matched with a new structure. During the movement of the instrument, the clamp head will press down on the U-shaped spring when it opens and closes to prevent it from falling off. 3) After the clamp head presses down on the U-shaped spring, spot welding is added at the tail of the clamp head and the two arms of the U-shaped spring to further increase the firmness of the instrument components. 4) It solves the problem that the instrument may become detached from the clamp head and the U-shaped spring during storage, transportation and use by medical staff due to vibration, drops, or collisions with the operating table when changing surgical positions, which could lead to instrument failure during operation. 5) The front end of the push clamp plate has the function of pressing down on the ligation clamp, so that the tail of the ligation clamp does not bend during the forward movement. 6) During the process of pushing the ligation clip forward, the double rows of spring clips on both sides should be used to prevent deformation and failure of one side of the spring clip and insufficient thrust, which would cause the ligation clip to fail to reach the designated position.

[0115] In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more features. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0116] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0117] The above are merely specific embodiments of this application, but the scope of protection of this application is not limited thereto. Any modifications, equivalent substitutions, and improvements made by those skilled in the art within the scope of the technology disclosed in this application, and within the spirit and principles of this application, should be included within the scope of protection of this application. Those skilled in the art can make various modifications and refinements without departing from the spirit and scope of this application. Therefore, the scope of protection of this application shall be determined by the scope defined in the claims.

Claims

1. A clamping device, wherein, The magazine includes a first clamping head and a second clamping head mounted longitudinally. A U-shaped spring is mounted on the front of the tail end of the first clamping head and the second clamping head. A small wing structure extends from the inner side of the U-shaped spring connecting to the first clamping head. The small wing structure and the first clamping head form a feature groove on the magazine. The function of the small wing structure is to prevent the U-shaped spring from falling into the feature groove when it is in a compressed state during operation, so as to ensure the lateral stability of the U-shaped spring. The first clamping head and the second clamping head are respectively provided with a first solder point and a second solder point on the front of their tail ends to ensure that the U-shaped spring will not fall off after compression and rebound during the movement; a paddle is installed on the reverse side of the tail ends of the first clamping head and the second clamping head, and the paddle serves to open the first clamping head and the second clamping head.

2. The clamping device according to claim 1, wherein, The top of the magazine is equipped with a double-sided pusher clip, and a ligating clip is installed between the magazines, with the ligating clip connected to the end of the double-sided pusher clip.

3. The clamping device according to claim 2, wherein, The two sides of the end of the double-sided push clamp are provided with a first inclined plate and a second inclined plate, and the middle position of the end of the double-sided push clamp is provided with an inclined groove. The end of the inclined groove is connected to a first bending spring, an extension structure and a second bending spring. The ligation clip is provided with a first cylindrical structure and a second cylindrical structure, and the ligation clip is connected to the first bent spring and the second bent spring through two elastic elements.

4. The clamping device according to claim 3, wherein, The double-sided push clips are capable of reciprocating in parallel along the axial direction of the magazine, thereby pushing the ligation clips to move linearly within the magazine parallel to the magazine. Each time the double-sided push clips reciprocate, the ligation clips move one pitch in a direction parallel to the magazine. The pitch is determined by the spacing of the array of springs on the double-sided push clips. During the return process, the first and second bent springs at the ends of the double-sided push clips will deflect the ligation clips at the ends, correcting the position of the next ligation clip, ensuring that the position of the next ligation clip in the magazine is not skewed or offset, and resetting the ligation clips to their original mounting position in the magazine.

5. The clamping device according to claim 4, wherein, The protruding structure has the function of pressing down on the ligation clip at the front end of the double-sided push clip, so that the tail of the ligation clip does not warp during the forward movement of the ligation clip, ensuring that the ligation clip moves smoothly in a straight line during the forward movement of the magazine, and preventing the ligation clip from protruding from the tail side in the forward direction of the ligation clip when the double-sided push clip pushes the ligation clip, which would cause the ligation clip to fail to close; the first inclined plate and the second inclined plate correspondingly push the first cylindrical structure and the second cylindrical structure, synchronously and symmetrically pushing the ligation clip forward, so as to ensure the stability of the ligation clip during the forward movement.

6. A clamping device, wherein, include: A magazine has a first surface and a second surface that are disposed opposite to each other; The first clamping head includes a first clamping end and a first clamping arm and a second clamping arm that are fixedly connected to the first clamping end and disposed opposite to each other; The second clamping head includes a second clamping end and a third clamping arm and a fourth clamping arm that are fixedly connected to the second clamping end and disposed opposite to each other; the first clamping arm and the third clamping arm are rotatably connected to the first surface, and the second clamping arm and the fourth clamping arm are rotatably connected to the second surface. A spring sheet is disposed on the first surface and is respectively connected to the ends of the first clamping arm and the third clamping arm that are away from the first clamping end; A paddle is disposed on the second surface and is slidably connected to the ends of the second clamping arm and the fourth clamping arm that are away from the second clamping end.

7. The clamping device as claimed in claim 6, wherein, The clamping device further includes: Multiple ligature clips are spaced apart inside the magazine; A double-sided push clip is located on the top of the magazine and connected to the paddle. The bilateral push clips reciprocate along the length of the magazine under the action of external force, and push the ligature clip forward as the bilateral push clips advance, so as to complete the firing of the ligature clip.

8. The clamping device as claimed in claim 7, wherein, The paddle includes a first sub-paddle and a second sub-paddle; One end of the first sub-paddle and the second sub-paddle has a sliding portion, and the sliding portion is slidably connected to the end of the second clamping arm and the fourth clamping arm away from the first clamping end, respectively; The first sub-paddle and the second sub-paddle slide synchronously.

9. The clamping device as claimed in claim 6, wherein, The paddle includes a paddle body, and the first sub-paddle and the second sub-paddle are respectively fixedly connected to the paddle body; The paddle body is connected to the double-sided push clip.

10. The clamping device as claimed in claim 9, wherein, The paddle body has a through groove, and the paddle also includes a third connector. One end of the third connector is fixedly connected to the inner wall of the through groove, and the other end is bent and extends from the through groove toward the double-sided push clip. The double-sided push clip also has a slot, and the third connector engages with the slot.

11. The clamping device as claimed in claim 8, wherein, The bilateral push-clamp plate includes: The main body of the push clip extends along the length of the magazine; An extension structure is connected to the end of the push clip body; the extension structure is used to press down the tail end of the ligation clip; The double-sided push clip has multiple first inclined plates and multiple second inclined plates on both sides. The multiple first inclined plates are spaced apart and connected to one side of the push clip body, and the multiple second inclined plates are spaced apart and connected to the other side of the push clip body. The first inclined plates and the second inclined plates are used to push the ligation clip forward.

12. The clamping device as claimed in claim 11, wherein, The ligation clip is provided with a first limiting structure and a second limiting structure located on both sides of the ligation clip and connected to the ligation clip; During the forward movement of the ligation clip, the first inclined plate abuts against the first limiting structure, and the second inclined plate abuts against the second limiting structure.

13. The clamping device as claimed in claim 12, wherein, The first clamping end has a first limiting groove, and the second clamping end has a second limiting groove. When the double-sided push clamp pushes the ligation clip at the far end to the designated position, the first limiting structure and the second limiting structure enter the first limiting groove and the second limiting groove respectively and abut against the inner wall at the far end of the first limiting groove and the second limiting groove respectively.

14. The clamping device as claimed in claim 11, wherein, The bilateral push clamp also includes multiple first support arms and multiple second support arms; Multiple first inclined plates are respectively connected to one side of the push clamp body through multiple first support arms, and the first inclined plates are inclined relative to the corresponding first support arms; Multiple second inclined plates are respectively connected to the other side of the push clamp body through multiple second support arms, and the multiple second inclined plates are inclined relative to the corresponding second support arms.

15. The clamping device as claimed in claim 14, wherein, The first inclined plate and the second inclined plate are both spring plates.

16. The clamping device as claimed in claim 14, wherein, The end of the push clip body is connected to a first bending spring and a second bending spring; the first bending spring and the second bending spring are respectively connected to both sides of the protruding structure; As the bilateral push clips push the ligation clip at its far end forward, the first bent spring and the second bent spring abut against the outer wall of the elastic element at the tail of the ligation clip, and push the ligation clip forward under the action of elastic force.

17. The clamping device according to any one of claims 6-16, wherein, The spring includes a first elastic arm, a second elastic arm, and a first connecting part. The first elastic arm and the second elastic arm are arranged opposite to each other and are respectively connected to both ends of the first connecting part. The first connecting part is connected to the first surface of the magazine. The first elastic arm and the second elastic arm are respectively engaged with the first clamping arm and the third clamping arm.

18. The clamping device as claimed in claim 17, wherein, The first clamping arm has a first connecting groove, and the third clamping arm has a second connecting groove; The end of the first elastic arm away from the first connecting portion has a first connecting member. The first connecting member extends from the first elastic arm in a direction perpendicular to the first surface. The first connecting member is received in the first connecting groove and engages with the first connecting groove. The second elastic arm has a second connector at one end away from the first connecting portion. The second connector extends from the second elastic arm in a direction perpendicular to the first surface. The second connector is received in a second connecting groove and engages with the second connecting groove.

19. The clamping device as claimed in claim 18, wherein, The tail ends of the first clamping arm and the third clamping arm are fixedly connected to the first elastic arm and the second elastic arm at the first connection point and the second connection point, respectively.

20. The clamping device as claimed in claim 17, wherein, The first surface of the magazine has a feature groove; The inner sidewall of the first elastic arm is provided with a limiting part, which is fixedly connected to the inner sidewall of the first elastic arm and extends from the inner sidewall of the first elastic arm toward the second elastic arm. At least a portion of the end of the limiting portion away from the first elastic arm projects onto the first surface of the magazine and falls outside the feature groove.

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