Clamping forceps device

Abstract

The invention provides a clamping pincer device. The clamping pincer device comprises a magazine and a clamping device, the first clamping head comprises a first clamping end, a first clamping arm and a second clamping arm; the second clamping head comprises a second clamping end, a third clamping arm and a fourth clamping arm; the first clamping arm and the third clamping arm are rotationally connected to the first surface, and the second clamping arm and the fourth clamping arm are rotationally connected to the second surface. The elastic piece is arranged on the first surface and connected with the ends, away from the first clamping end, of the first clamping arm and the third clamping arm. The shifting piece is arranged on the second surface and is in sliding connection with the ends, away from the second clamping end, of the second clamping arm and the fourth clamping arm. By means of the clamping forceps device, the probability that after a ligature clip is triggered by an instrument, a flying nail is generated or the ligature clip deviates from the top can be reduced.

Description

Technical Field

[0001] This application relates to the field of medical device technology, and in particular to a clamping forceps device. Background Technology

[0002] 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.

[0003] 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.

[0004] To address the aforementioned issues, existing technologies urgently need improvement. Summary of the Invention

[0005] In view of this, embodiments of this application provide a method to reduce the probability of flying spikes or clip misalignment after the instrument fires the ligation clip.

[0006] To achieve the above objectives, this application provides a clamping device, comprising: a magazine having a first surface and a second surface disposed opposite to each other; a first clamping head including a first clamping end and a first clamping arm and a second clamping arm respectively fixedly connected to the first clamping end and disposed opposite to each other; a second clamping head including a second clamping end and a third clamping arm and a fourth clamping arm respectively fixedly connected to the second clamping end and disposed opposite to each other; the first clamping arm and the third clamping arm are respectively rotatably connected to the first surface, and the second clamping arm and the fourth clamping arm are respectively rotatably connected to the second surface; a spring piece disposed on the first surface and respectively connected to the ends of the first clamping arm and the third clamping arm away from the first clamping end; and a lever disposed on the second surface and respectively slidably connected to the ends of the second clamping arm and the fourth clamping arm away from the second clamping end.

[0007] In some embodiments of this application, the clamping device further includes: a plurality of ligature clips spaced apart inside the magazine; and a double-sided pusher clip disposed on the top of the magazine and connected to the paddle; wherein the double-sided pusher clip reciprocates along the length direction of the magazine under the action of an external force, and pushes the ligature clip forward as the double-sided pusher clip moves forward to complete the firing of the ligature clip.

[0008] In some embodiments of this application, 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; wherein the first sub-paddle and the second sub-paddle slide synchronously.

[0009] 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; wherein, the paddle body is connected to the double-sided push clip.

[0010] In some embodiments of this application, the paddle body has a through groove, and the paddle further 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.

[0011] In some embodiments of this application, the bilateral push clip includes: a push clip body extending along the length of the magazine; an extension structure connected to the end of the push clip body; the extension structure is used to press down the tail end of the ligation clip; wherein, a plurality of first inclined plates and a plurality of second inclined plates are provided on both sides of the bilateral push clip, the plurality of first inclined plates are spaced apart and connected to one side of the push clip body, the plurality of second inclined plates are spaced apart and connected to the other side of the push clip body, and the first inclined plates and the second inclined plates are used to push the ligation clip forward.

[0012] 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; 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.

[0013] 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.

[0014] 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; the plurality of first inclined plates are respectively connected to one side of the push clamp body through the plurality of first support arms, and the first inclined plates are inclined relative to the corresponding first support arms; the plurality of second inclined plates are respectively connected to the other side of the push clamp body through the plurality of second support arms, and the plurality of second inclined plates are inclined relative to the corresponding second support arms.

[0015] In some embodiments of this application, the first inclined plate and the second inclined plate are spring sheets.

[0016] In some embodiments of this application, the end of the push clip body is connected to a first bent spring 19 and a second bent spring 19; the first bent spring 19 and the second bent spring 19 are respectively connected to both sides of the protruding structure; when the double-sided push clip pushes the ligation clip at the far end forward, the first bent spring 19 and the second bent spring 19 abut against the outer wall of the elastic member at the tail of the ligation clip, and push the ligation clip forward under the action of elastic force.

[0017] 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. The first elastic arm and the second elastic arm are respectively engaged with the first clamping arm and the third clamping arm.

[0018] 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; 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, and the first connecting member is received in the first connecting groove and engaged with the first connecting groove; the end of the second elastic arm away from the first connecting portion has a second connecting member, the second connecting member extends from the second elastic arm in a direction perpendicular to the first surface, and the second connecting member is received in the second connecting groove and engaged with the second connecting groove.

[0019] 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.

[0020] In some embodiments of this application, the first surface of the magazine has a feature groove; the inner wall of the first elastic arm is provided with a limiting portion, the limiting portion is fixedly connected to the inner wall of the first elastic arm and extends from the inner wall 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 projected onto the first surface of the magazine falls outside the feature groove.

[0021] This application provides a clamping device, comprising: a magazine having a first surface and a second surface disposed opposite to each other; a first clamping head including a first clamping end and a first clamping arm and a second clamping arm respectively fixedly connected to the first clamping end and disposed opposite to each other; a second clamping head including a second clamping end and a third clamping arm and a fourth clamping arm respectively fixedly connected to the second clamping end and disposed opposite to each other; the first clamping arm and the third clamping arm are respectively rotatably connected to the first surface, and the second clamping arm and the fourth clamping arm are respectively rotatably connected to the second surface; a spring piece disposed on the first surface and respectively connected to the ends of the first clamping arm and the third clamping arm away from the first clamping end; and a lever disposed on the second surface and respectively slidably connected to the ends of the second clamping arm and the fourth clamping arm away from the second clamping end. This application prevents the first clamping head, the second clamping head, and the spring from shifting or falling off during excessive impact by having the first clamping arm of the first clamping head and the third clamping arm of the second clamping head rotatably connected to the magazine and the spring clip, respectively, and having the second clamping arm of the first clamping head and the fourth clamping arm of the second clamping head rotatably connected to the second surface of the magazine and slidably connected to the lever, thereby reducing the probability of flying nails or misalignment of the ligation clip after the instrument fires the ligation clip and improving the surgeon's efficiency. Attached Figure Description

[0022] Figure 1 This is a schematic diagram illustrating the assembly and mating of a clamping device provided in an embodiment of this application.

[0023] Figure 2 This is a schematic diagram of the compression of the U-shaped spring after it is engaged with the magazine and the paddle, as provided in the embodiments of this application.

[0024] Figure 3 This is a schematic diagram of the U-shaped spring clip provided in the embodiments of this application, after it is engaged with the magazine and the paddle.

[0025] Figure 4 This is a schematic diagram of the original state of the U-shaped spring after it is engaged with the magazine and the paddle, as provided in the embodiments of this application.

[0026] Figure 5 This is a schematic diagram of the original state of the U-shaped spring clip provided in the embodiments of this application after it is engaged with the magazine and the paddle.

[0027] Figure 6 A schematic diagram showing the cooperation between the double-sided push clip, the ligature clip, and the magazine provided in the embodiments of this application.

[0028] Figure 7 for Figure 6 Enlarged diagram of point A in the diagram.

[0029] Figure 8 This is a schematic diagram of a double-sided push clamp provided in an embodiment of this application.

[0030] Figure 9 for Figure 8 Enlarged diagram of point B in the image.

[0031] Figure 10 This is a schematic diagram showing the installation of a first clamping head, a second clamping head, and a double-sided push clamp in a clamping device provided in an embodiment of this application.

[0032] Figure 11 yes Figure 1 A three-dimensional schematic diagram of the first clamping head in the process.

[0033] Figure 12 yes Figure 1 A three-dimensional schematic diagram of the second clamping head.

[0034] Figure 13 yes Figure 8 The top view of the double-sided push clip shown.

[0035] Figure 14 yes Figure 13 A schematic diagram showing another angle of the bilateral push clamp.

[0036] Figure 15 yes Figure 14 Enlarged view of point C in the image.

[0037] Figure 16 yes Figure 8 The diagram shows a double-sided push clip (with a ligation clip).

[0038] Figure 17 yes Figure 16 Enlarged view of point D in the image.

[0039] Figure 18 yes Figure 16 A schematic diagram of another angle of the bilateral push clip (with ligation clip).

[0040] Figure 19 yes Figure 18 Enlarged view of point E in the image.

[0041] Figure 20It is a schematic diagram of the ligation clip being pushed to the first clamping head and the second clamping head by the double-sided push clip and being clamped by the first clamping head and the second clamping head.

[0042] Figure 21 yes Figure 3 The pick shown is Figure 8 The diagram shows a double-sided push clamp.

[0043] Figure 22 yes Figure 21 Enlarged view of point F in the image.

[0044] The attached figures are labeled as follows:

[0045] 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; 12. Top; 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;

[0046] 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;

[0047] 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. Detailed Implementation

[0048] 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.

[0049] like Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, this application embodiment provides a clamping device, including a magazine 9. A first clamping head 1 and a second clamping head 5 are mounted on the magazine 9. The first clamping head 1 and the second clamping head 5 cannot move back and forth on 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. 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 (see below) and extends from the inner wall of the first elastic arm 41 toward the second elastic arm 42 (see below). 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 U-shaped spring piece 4 from falling into the feature groove 2 when it is in a compressed state during operation, so as to ensure the lateral stability of the U-shaped spring piece 4. When the U-shaped shrapnel 4 is... Figure 1 The normal state shown is switched to that is Figure 2 In the compressed state shown, if the limiting part 3 is not present, the clamping arm connected to the first clamping head 1 of the spring piece 4 may fall into the feature groove 2, and the lateral stability of the spring piece 4 will be affected.

[0050] In some embodiments of this application, the limiting part 3 may be a limiting part in the shape of a small wing.

[0051] 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 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 will not produce a flying nail phenomenon.

[0052] 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.

[0053] 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.

[0054] Please see Figure 1 and Figure 11 In some embodiments of this application, the first clamping head 1 includes a first clamping end 111, a first clamping arm 110, and a second clamping arm 120. The first clamping arm 110 and the 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 U-shaped 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.

[0055] Please see Figure 1 and Figure 12 In some embodiments of this application, the second clamping head 5 includes a second clamping end 511, a third clamping arm 510, and a fourth clamping arm 520. 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. The second connecting groove 53 is used to cooperate with the U-shaped spring 4 to connect the third clamping arm 510 and the spring 4. The third clamping arm 510 and the fourth clamping arm 520 each 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.

[0056] Among them, the shrapnel 4 can be U-shaped or not.

[0057] In this embodiment, the spring 4 can be U-shaped. The U-shaped spring 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. The second connecting portion 91 protruding on the magazine 9 is received in the connecting groove 46 to connect the U-shaped spring 4 to the magazine 9 and to limit the position of the U-shaped spring 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 so that the first elastic arm 41 and the first clamping arm 110 are initially connected. 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.

[0058] 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 U-shaped spring 4 switches from the normal state to the compressed state, the first connecting member 44 can easily disengage from the first connecting groove 113, and the second connecting member 45 can easily disengage 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 connection point 6 and a second connection 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 connection point 6 and the second connection point 7, respectively, to ensure that the U-shaped spring 4 will not fall off after compression and rebound during the movement, to ensure the stability of the instrument movement, and to prevent the instrument from flying nails.

[0059] 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 U-shaped spring clip 4 in this application is assembled by flipping 180°. During the movement of the first clamping head 1 and the second clamping head 5, the U-shaped spring clip 4 is pressed down and will not pop out vertically, causing the instrument firing ligation clip to fail.

[0060] Please see Figure 3 , Figure 5 , Figure 20 and Figure 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.

[0061] like Figures 6 to 15 As shown, the clamping device 100 also includes double-sided push clips 23. The magazine 9 has a recessed receiving groove 94 formed from the second surface 92 towards the first surface. Both the ligation clip 16 and the double-sided push clip 23 are disposed within the receiving groove 94. The ligation clip 16 is close to the first surface 92, that is, the double-sided push clip 23 is located above the ligation clip 16. The double-sided push clip 23 is a structural feature formed by stamping, bending, and plastic deformation of stainless steel. The two sides of the double-sided push clip 23 are composed of double spring clips (i.e., the first inclined plate 15 and the second inclined plate 18 below), with an array of equidistant spring clips 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 clip 23. In this embodiment, the first clamping head 1 and the second clamping head 5 are mounted on the magazine 9, and the double-sided push clip 23 is mounted on... Figure 10 The position in the middle is its initial position, and the double-sided push clip 23 moves back and forth along the length of the magazine 9.

[0062] like Figure 9 and Figures 13 to 15As shown, 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.

[0063] The inclined groove 20 is located at the middle of the end of the push clamp body 230, and a first bent spring piece 19 and a second bent spring piece 22 are connected to the end of the inclined groove 20. The first bent spring piece 19 and the second bent spring piece 22 are respectively connected to both sides of the protruding structure 21 and are integrally formed with the protruding structure 21. Figure 7 As shown, 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 a first bent spring piece 19 and a second bent spring piece 22 via two elastic elements 14. The ligation clip 16 and the two elastic elements 14 can be separately provided or integrated as one piece. The two elastic elements 14 can be regarded as part of the ligation clip 16. The tail ends of the two elastic elements 14 are connected and have an arc-shaped groove 141.

[0064] Please see Figure 7 and Figures 16 to 19As the bilateral push clips 23 push the ligation clip 16 at the far end forward, the protruding structure 21 at the end of the bilateral push clips 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 wall of the tail of the two elastic members 14, and under the action of elastic force, they can 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 plate 15 and the corresponding second inclined plate 18, respectively, to push the ligation clip 16 forward.

[0065] Please see Figure 11 , Figure 12 and Figure 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, and the protruding structure 21 retreats with the double-sided push clip 23 to above 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 retreat 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.

[0066] 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.

[0067] 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.

[0068] 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.

[0069] Please see Figure 21 and Figure 22 The paddle body 80 of the paddle 8 has a through groove 84 at the end away from the first sub-paddle 81 and the second sub-paddle 82. The paddle 8 also includes a third connector 85, one end of which is fixedly connected to the inner wall of the through groove 84, and the other end is bent and extends from the through groove 84 toward the double-sided push clip 23.

[0070] Please see Figure 15 , Figure 19 and Figure 22 The push-clamp body 230 of the double-sided push-clamp 23 also has a slot 233, and the third connector 85 is engaged with the slot 233 to realize the connection between the paddle 8 and the double-sided push-clamp 23.

[0071] 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 these methods. Figure 21 and Figure 22 This is the connection method shown.

[0072] In the above-described process of firing the ligation clamp in the clamping device of this application, 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 lever 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 rotation of the first clamping end 111 of the first clamping head 1 and the second clamping end 511 of the second clamping head 5 to open. 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 as the lever 8 slides, the U-shaped spring 4 is in a compressed state, the first elastic arm 41 and the second elastic arm 42 move closer to each other, and the limiting part 3 moves closer to the second elastic arm 42. Immediately afterwards, the clamping device 100 moves as follows: the first elastic arm 41 and the second elastic arm 42 of the U-shaped spring 4 return to their original initial state under the rebound of the compressive force of the U-shaped spring 4. Figure 1 and Figure 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 clips 16 are fired. During the movement of the instrument, 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. 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 U-shaped spring 4 will not fall off after compression and rebound during the movement, thus ensuring the stability of the clamping device.

[0073] Compared with the prior art, the embodiments of this application provide an anti-deviation continuous firing clamp device with 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 maintain the pre-tightness of the ligation clamp 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 to prevent it from falling off when it opens and closes. 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 supporting 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.

[0074] 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.

[0075] 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.

[0076] The above are merely preferred embodiments of this application, intended only to aid in understanding the technical solutions and core ideas of this application, and are not intended to limit this application in any way. Those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions in the embodiments of this application.

Claims

1. A clamping forceps device, characterized in that, The device comprises: a cartridge having a first surface and a second surface arranged oppositely; a first clamping head comprising a first clamping end and a first clamping arm and a second clamping arm fixedly connected to the first clamping end and arranged oppositely; a second clamping head comprising a second clamping end and a third clamping arm and a fourth clamping arm fixedly connected to the second clamping end and arranged oppositely; 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 plate arranged on the first surface and connected to one end of the first clamping arm and the third clamping arm away from the first clamping end; a push plate arranged on the second surface and slidably connected to one end of the second clamping arm and the fourth clamping arm away from the second clamping end.

2. The forceps device of claim 1, wherein, The clamping forceps device further comprises: a plurality of ligature clips arranged at intervals in the cartridge; a double-sided push clip arranged on the top of the cartridge and connected to the push plate; wherein the double-sided push clip reciprocates along the length direction of the cartridge under the action of external force, and when the double-sided push clip advances, it pushes the ligature clip to advance to complete the firing of the ligature clip.

3. The forceps device of claim 2, wherein, The push plate comprises a first sub-push plate and a second sub-push plate; one end of the first sub-push plate and the second sub-push plate has a sliding part, which is slidably connected to one end of the second clamping arm and the fourth clamping arm away from the first clamping end, respectively; wherein the first sub-push plate and the second sub-push plate slide synchronously.

4. The forceps device of claim 3, wherein, The push plate comprises a push plate main body, and the first sub-push plate and the second sub-push plate are fixedly connected to the push plate main body, respectively; wherein the push plate main body is connected to the double-sided push clip.

5. The forceps device of claim 4, wherein, The push plate main body has a through slot, and the push plate further comprises a third connecting piece, one end of which is fixedly connected to the inner wall of the through slot, and the other end is bent and extends from the through slot to the double-sided push clip; the double-sided push clip also has a clamping groove, and the third connecting piece is clamped with the clamping groove.

6. The forceps device of claim 3, wherein, The double-sided push clip comprises: a push clip main body extending along the length direction of the cartridge; an extension structure connected to the end of the push clip main body; the extension structure is used to press the tail end of the ligature clip; wherein the double-sided push clip is provided with a plurality of first inclined plates and a plurality of second inclined plates on both sides, a plurality of the first inclined plates are arranged at intervals and connected to one side of the push clip main body, a plurality of the second inclined plates are arranged at intervals and connected to the other side of the push clip main body, and the first inclined plates and the second inclined plates are used to push the ligature clip to advance.

7. The forceps device of claim 6, wherein, The ligature clip is provided with a first limiting structure and a second limiting structure on both sides of the ligature clip and connected to the ligature clip; during the advancement of the ligature clip, the first inclined plate abuts against the first limiting structure, and the second inclined plate abuts against the second limiting structure.

8. The forceps device of claim 7, wherein, The first clamping end has a first limiting groove, and the second clamping end has a second limiting groove; when the double-side pushing clamping piece pushes the ligature clip at the end to a specified position, the first limiting structure and the second limiting structure respectively enter the first limiting groove and the second limiting groove and respectively abut against the inner walls of the front ends of the first limiting groove and the second limiting groove.

9. The forceps device of claim 6, wherein, The double-side pushing clamping piece further comprises a plurality of first supporting arms and a plurality of second supporting arms; The plurality of first inclined plates are respectively connected to one side of the pushing clamping piece body through the plurality of first supporting arms, and the first inclined plates are inclined relative to the corresponding first supporting arms. The plurality of second inclined plates are respectively connected to the other side of the pushing clamping piece body through the plurality of second supporting arms, and the plurality of second inclined plates are inclined relative to the corresponding second supporting arms.

10. The forceps device of claim 9, wherein, The first inclined plates and the second inclined plates are respectively elastic sheets.

11. The forceps device of claim 9, wherein, The end of the pushing clamping piece body is connected with a first bent elastic sheet 19 and a second bent elastic sheet 22; the first bent elastic sheet and the second bent elastic sheet are respectively connected to the two sides of the protruding structure. When the double-side pushing clamping piece pushes the ligature clip at the end to advance, the first bent elastic sheet and the second bent elastic sheet abut against the outer walls of the elastic members of the tail of the ligature clip and push the ligature clip to advance under the action of the elastic force.

12. The forceps device of any one of claims 1-11, wherein, The elastic sheet comprises a first elastic arm, a second elastic arm and a first connecting part, the first elastic arm and the second elastic arm are oppositely arranged and respectively connected with the two ends of the first connecting part, and the first connecting part is connected to the first surface of the magazine. The first elastic arm and the second elastic arm are respectively clamped with the first clamping arm and the third clamping arm.

13. The forceps device of claim 12, wherein, The first clamping arm has a first connecting groove, and the third clamping arm has a second connecting groove. One end of the first elastic arm away from the first connecting part has a first connecting piece, the first connecting piece extends from the first elastic arm to a direction perpendicular to the first surface, the first connecting piece is accommodated in the first connecting groove and clamped with the first connecting groove. One end of the second elastic arm away from the first connecting part has a second connecting piece, the second connecting piece extends from the second elastic arm to a direction perpendicular to the first surface, the second connecting piece is accommodated in the second connecting groove and clamped with the second connecting groove.

14. The forceps device of claim 13, wherein, The tail ends of the first clamping arm and the third clamping arm are respectively fixedly connected with the first elastic arm and the second elastic arm at a first connecting point and a second connecting point.

15. The forceps device of claim 12, wherein, The first surface of the magazine has a characteristic groove. The inner side wall of the first elastic arm is provided with a limiting part, the limiting part is fixedly connected with the inner side wall of the first elastic arm and extends from the inner side wall of the first elastic arm towards the second elastic arm; The end of the limiting part away from the first elastic arm is projected on the first surface of the magazine, and at least part of the projection falls outside the characteristic groove.

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