A push clip and clip pocket device

Abstract

The application provides a pushing and clamping device, wherein the pushing and clamping piece comprises a pushing and clamping piece body and a pushing and clamping piece head part connected in sequence and used for pushing a to-be-entered forceps ligature clamp, the pushing and clamping piece head part has at least two pushing pieces arranged in a bifurcated manner from top to bottom, and the connecting end end portions of all the pushing pieces are located on the same plane parallel to the pushing and clamping piece body, and the free ends of all the pushing pieces are used for abutting against the closed tail part of the to-be-entered forceps ligature clamp. The pushing and clamping stability of the pushing and clamping piece head part to the closed tail part of the ligature clamp is improved.

Description

Technical Field

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

[0002] During surgical procedures, to fully expose the surgical field, it is necessary to ligate the blood vessels surrounding the target tissue to stop bleeding. Hemostasis has become one of the core basic surgical techniques. Almost every surgical procedure on any part of the human body involves bleeding and hemostasis, and generally, a clamping device is used to ligate and close the wound to stop the bleeding.

[0003] To improve surgical efficiency, a clip applicator capable of continuous clip delivery has been developed. This continuous clip applicator stores multiple ligation clips in its clip chamber. After the applicator fires one ligation clip and closes the clip, it can immediately deliver the next ligation clip to the jaws for the next firing, thus enabling continuous firing of ligation clips by the applicator.

[0004] Continuous clip applicators include polymer ligation clip applicators. Currently, the polymer ligation clips used in polymer ligation clip applicators have the following structure: Figure 1 As shown, the polymer ligation clip generally includes a first clamping arm 11 and a second clamping arm 12 connected to each other. One end of the two clamping arms is connected to form the closed tail of the ligation clip, and the other end is a free end. The free ends of the two clamping arms are far apart from each other, forming a V-shaped opening. The first clamping arm 11 is an arc shape protruding outward from the V-shaped opening, and the second clamping arm 12 is an arc shape protruding inward from the V-shaped opening. The free end of the first clamping arm 11 forms a locking hook 111 that bends inward from the V-shaped opening, and the free end of the second clamping arm 12 forms a hook groove 121 that matches the locking hook 111. To facilitate the clamping of the ligation clip by the clamping jaws, two first clamping posts 21 are provided on the first clamping arm 11 near the locking hook 111 (i.e., near the free end). The height direction of the first clamping posts 21 is perpendicular to the side plane of the ligation clip. The two first clamping posts 21 are symmetrically located on both sides of the first clamping arm 11. Two second clamping posts 22 are provided on the second clamping arm 12 near the hook groove 121 (i.e., near the free end). The height direction of the second clamping posts 22 is perpendicular to the side plane of the ligation clip. The two second clamping posts 22 are symmetrically located on both sides of the second clamping arm 12.

[0005] The current structure of the clamping device of polymer ligation clip applicators is as follows: Figures 2 to 4As shown, the clamping device includes a clamping chamber 3 for accommodating multiple ligation clips and a pusher clip 4 for pushing the ligation clips. The multiple ligation clips include a ligation clip 3 (the clip to be inserted into the clamp jaws) located at the farthest end, and ligation clips arranged and stored near the ligation clip 3. The multiple ligation clips are placed flat on the bottom plate 31 of the clamping chamber with their openings facing the clamping direction. The first clamping arm 11 of the ligation clip is attached to the first side wall of the clamping chamber 3, and the second clamping arm 12 of the ligation clip is attached to the second side wall of the clamping chamber 3. Multiple clips that curve upwards along the clamping direction are evenly spaced on the bottom plate 31. The first elastic locking position; the push clip 4 includes a push clip body 41 and a push clip head 42 connected in sequence. The push clip head 42 is bent to one side relative to the push clip body 41. The push clip body 41 covers the ligation clips other than the ligation clip to be inserted. The push clip head 42 extends into the clamping chamber 3 and is set close to the closed tail of the ligation clip 3 to be inserted. Multiple second elastic locking positions 411 are evenly spaced on the push clip body 41, which are inclined downward along the clamping direction.

[0006] Before the clamping device delivers the clamps, the first elastic locking position of the clamping clamp 3 is closer to the far end of the clamping chamber 3 than the farthest first elastic locking position. The clamping posts of the clamping clamps other than the clamping clamp 3 are located between two adjacent first elastic locking positions, and the second elastic locking position 411 is located between the clamping posts of adjacent clamping clamps other than the clamping clamp 3. When the clamping device delivers the clamps, the push clamp 4 moves towards the far end of the clamping chamber, and the raised part of the second elastic locking position 411 gradually abuts against the first clamping post 21 and / or the second clamping post 22 of all clamping clamps other than the clamping clamp 3. At the same time, the head 42 of the push clamp abuts against the closed tail of the clamping clamp 3. As the push clip 4 continues to advance towards the distal end of the clamping chamber 3, it pushes all the ligation clips towards the distal end of the clamping chamber 3 until the ligation clip 3 to be inserted enters the jaws. At this point, the push clip 4 stops advancing towards the distal end of the clamping chamber 3. During this process, all the ligation clips except the ligation clip 3 to be inserted will pass over their adjacent first elastic locking position on the distal side. Then, the push clip 4 advances towards the proximal end of the clamping chamber 3. The push clip head 42 and the second elastic locking plate 411 will drive all the ligation clips except the ligation clip 3 to advance towards the proximal end of the clamping chamber 3. When all the ligation clips except the ligation clip 3 to be inserted contact the first elastic locking position, the first elastic locking position will prevent all the ligation clips except the ligation clip 3 to continue advancing towards the proximal end of the clamping chamber 3. Because the push clip head 42 and the second elastic plate 411 are elastic, the push clip head 42 and the second elastic plate 411 will pass over their adjacent ligation clips on the proximal side. After that, the push clip 4 stops advancing towards the proximal end of the clamping chamber 3. The pusher clip 4 moves back and forth, sequentially delivering the ligation clips to the jaws.

[0007] In practical use, the aforementioned polymer ligation clip applicator often experiences problems such as mechanism jamming and clip delivery failure, ultimately leading to prolonged operation time and delayed hemostasis. The applicant's research revealed that the main factors causing mechanism jamming and clip delivery failure include: the push clip head is a single-piece structure. During the process of pushing the ligation clip to the jaws, the push clip head and the tail of the ligation clip are in line-surface contact, resulting in unstable support. During the delivery of the ligation clip to the jaws, the wobbling and swaying of the ligation clip (mostly the up-and-down swaying of the closed tail) can easily cause the closed tail of the ligation clip to disengage from the effective support position of the push clip head, or even disengage from the support of the push clip head altogether. This instability in clip delivery leads to mechanism jamming and clip delivery failure.

[0008] Therefore, there is an urgent need for an improved pusher and clamping device. Summary of the Invention

[0009] (a) Technical problems to be solved

[0010] In view of the problems existing in the above-mentioned technologies, the present invention provides solutions to at least some extent. To this end, the present invention proposes a push clip that improves the clamping stability of the push clip head towards the closing tail of the ligation clip.

[0011] The present invention also proposes a clamping device having the above-mentioned push clamp plate.

[0012] (II) Technical Solution

[0013] To achieve the above objectives, the main technical solutions adopted by the present invention include:

[0014] On one hand, the present invention provides a push clip, including a push clip body and a push clip head for pushing the clamp ligation clip to be inserted, which are connected in sequence. The push clip head has at least two push clips arranged in a forked manner from top to bottom. The connecting ends of all push clips are located on the same plane parallel to the push clip body. The free ends of all push clips are used to abut against the closed tail of the clamp ligation clip to be inserted.

[0015] Optionally, the push clip body is a flat sheet, and the connecting end of all push clips is connected to the distal end of the push clip body. The free end of all push clips is used to hold the closed tail of the clamp to be inserted.

[0016] Optionally, at least two pushers include an uppermost pusher for holding the upper part of the closing tail of the ligation clamp and a lowermost pusher for holding the lower part of the closing tail of the ligation clamp.

[0017] Optionally, the push clip head has a bent portion and a pushing portion arranged sequentially from near to far. The bent portion connects the push clip body and the pushing portion, so that the pushing portion is located on one side of the push clip body. The pushing portion consists of at least two pushing clips arranged in a forked shape and arranged sequentially from top to bottom. The connecting end of all the pushing clips is connected to the far end of the bent portion, and the free end of all the pushing clips is used to abut against the closed tail of the clamp to be inserted.

[0018] Optionally, at least two pushers include an uppermost pusher and a lowermost pusher. The free end of the uppermost pusher is inclined toward the pusher clip body to abut against the upper part of the closing tail of the clamping clip to be inserted, and the free end of the lowermost pusher is inclined away from the pusher clip body to abut against the lower part of the closing tail of the clamping clip to be inserted.

[0019] Optionally, the free end of the pusher is formed with a V-shaped end that matches the shape of the closed tail of the ligation clip.

[0020] Optionally, the first push piece and the second push piece are adjacent to each other. The far end of the side of the first push piece facing the second push piece is provided with at least one first protrusion. The far ends of all the first protrusions are flush with the free end of the first push piece. The second push piece is provided with a first slot for accommodating each first protrusion.

[0021] Optionally, the first pusher piece and the second pusher piece are adjacent to each other. A first protrusion is punched at the distal end of the first pusher piece in a first direction, and a second protrusion is punched at the distal end of the second pusher piece in a first direction at a position corresponding to the first protrusion. The distal end of the first protrusion is flush with the free end of the first pusher piece, and the distal end of the second protrusion is flush with the free end of the second pusher piece. The protruding side of the second protrusion faces the concave side of the first protrusion, and the concave side of the first protrusion can accommodate the protruding side of the second protrusion.

[0022] Optionally, the push clamp head has a bent portion and a pushing portion arranged sequentially from near to far. The bent portion connects the push clamp body and the pushing portion, so that the pushing portion is located on one side of the push clamp body. The pushing portion has a first pushing piece and a second pushing piece arranged in a bifurcated manner in the vertical direction. The free end of the first pushing piece and the free end of the second pushing piece are used to clamp the closed tail of the clamp to be inserted.

[0023] Optionally, the second push piece has a slot at the center of its left-right direction corresponding to the first push piece for accommodating the first push piece.

[0024] On the other hand, the present invention provides a clamping device having a pusher clamp as described above.

[0025] Optionally, the clamping device also includes a clamping chamber for accommodating multiple ligation clips; at least one clamping boss is provided in the middle of the left and right direction of the clamping chamber bottom plate, and during the process of the clamping clip being delivered to the clamping jaws, the top of the clamping boss always supports the closed tail of the clamping clip to be inserted, so that the closed tail of the clamping clip to be inserted is parallel to the clamping chamber bottom plate; the pushing part of the clamping pusher is arranged parallel to the clamping chamber bottom plate.

[0026] (III) Beneficial Effects

[0027] The beneficial effects of this invention are:

[0028] The push clip provided by this invention has at least two forked push plates whose free ends are used to hold the closed tail of the clamp ligation clip to be inserted. The push clip head has a multi-piece structure, and there are at least two line-surface contacts between the push clip head and the closed tail of the clamp ligation clip to be inserted (its holding and pushing effect is similar to that of surface-to-surface contact). The holding is stable, and during the process of the clamp ligation clip to be inserted into the jaws, the wobbling and swaying of the clamp ligation clip to be inserted is unlikely to cause the closed tail of the clamp ligation clip to disengage from the push clip head. Furthermore, because the pushing effect is similar to that of surface-to-surface contact, the clip insertion is more stable. Moreover, when the push plates are elastic, the push clip head can be deformed under pressure during the reset process of the push clip to push the next clamp ligation clip to be inserted. Attached Figure Description

[0029] The present invention is described with reference to the following figures:

[0030] Figure 1 This is a schematic diagram of the structure of the ligation clip according to the background art of the present invention;

[0031] Figure 2 This is a schematic diagram of the structure of a clamping chamber containing a ligation clip according to the background art of the present invention;

[0032] Figure 3 This is a schematic diagram of the mating structure between the pusher clip and the clamping chamber according to the background technology of the present invention;

[0033] Figure 4 for Figure 3 Enlarged schematic diagram of the far end of the middle compartment;

[0034] Figure 5 This is a schematic diagram of the overall structure of the clamping device according to Embodiment 5 of the present invention;

[0035] Figure 6 for Figure 5 Enlarged schematic diagram of the far end of the middle clamping unit;

[0036] Figure 7 This is a cross-sectional schematic diagram of the clamping device according to Embodiment 5 of the present invention from a first perspective;

[0037] Figure 8 for Figure 7 Enlarged schematic diagram of the far end of the middle clamping unit;

[0038] Figure 9 This is a cross-sectional schematic diagram of the clamping device according to Embodiment 5 of the present invention from a second perspective;

[0039] Figure 10 for Figure 9 Enlarged schematic diagram of the far end of the middle clamping unit.

[0040] [Explanation of Labels in the Attached Image]

[0041] 11: First clamping arm; 12: Second clamping arm; 13: Ligating clamp to be inserted;

[0042] 111: Locking hook;

[0043] 121: Hook groove;

[0044] 21: First clamping post; 22: Second clamping post;

[0045] 3: Mid-section;

[0046] 31: Compartment bottom plate;

[0047] 312: Boss;

[0048] 4: Push the clip;

[0049] 41: Push clip body; 42: Push clip head;

[0050] 411: Second flexible slot;

[0051] 421: First push piece; 422: Second push piece; 423: First protrusion; 424: First slot. Detailed Implementation

[0052] It should be noted that in this article, "near" refers to the side closer to the operator, and "far" refers to the side closer to the patient. The directional terms "upper," "lower," "front," "back," "left," and "right" used in this article are... Figure 2 Using the orientation as a reference, the direction from front to back is also the direction from far to near.

[0053] Example 1

[0054] like Figure 6 , Figure 8 and Figure 10As shown, this embodiment provides a push clip 4. The push clip 4 includes a push clip body 41 connected in sequence and a push clip head 42 for pushing the clamp ligation clip 13 to be inserted. The push clip head 42 has at least two push clips arranged in a forked manner from top to bottom. The connecting ends of all push clips are located on the same plane parallel to the push clip body 41. The free ends (i.e., the ends opposite to the connecting ends) of all push clips are used to abut against the closed tail of the clamp ligation clip 13 to be inserted.

[0055] The push clip 4, configured in this way, has at least two forked pusher blades whose free ends are used to hold the closed tail of the clamp ligation clip 13 to be inserted. The pusher blade head 42 has a multi-piece structure, and there are at least two line-to-surface contacts between the pusher blade head 42 and the closed tail of the clamp ligation clip 13 to be inserted (its holding and pushing effect is similar to that of surface-to-surface contact). The holding is stable, and during the process of the clamp ligation clip 13 to be inserted into the jaws, the wobbling and swaying of the clamp ligation clip 13 will not easily cause the closed tail of the clamp ligation clip 13 to disengage from the pusher blade head 42. Furthermore, because the pushing effect is similar to that of surface-to-surface contact, the insertion of the clip is more stable. Moreover, when the pusher blades are elastic, during the reset process of the pusher blade 4, the pusher blade head 42 can be deformed by pressure to push past its adjacent clamp to the next clamp ligation clip 13 to be inserted.

[0056] Preferably, in this embodiment, the push clip body 41 is a flat sheet, and the connecting ends of all push clips are connected to the far end of the push clip body 41.

[0057] Preferably, the at least two pusher pieces include an uppermost pusher piece and a lowermost pusher piece. The free end of the uppermost pusher piece is used to abut against the upper part of the closed tail of the clamp ligation clip 13, and the free end of the lowermost pusher piece is used to abut against the lower part of the closed tail of the clamp ligation clip 13. The angle between the uppermost pusher piece and the pusher clip body 41 is 5 to 15 degrees, and the angle between the lowermost pusher piece and the pusher clip body 41 is 20 to 30 degrees. This angled arrangement of the pusher pieces facilitates the at least two forked pusher pieces, during the repositioning process of the pusher clip 4, to pass over their adjacent ligation clips through elastic deformation under pressure.

[0058] More preferably, the length of the pusher in the front-to-back direction is 5-12 mm. A pusher of this length allows for easy elastic deformation so that the pusher clip 4 can pass over its adjacent ligation clip during repositioning, while also possessing sufficient strength to stably transmit the pushing force to the ligation clip 13 to be inserted.

[0059] Specifically, in this embodiment, the push clip head 42 has two push clips, namely the uppermost push clip and the lowermost push clip. The angle between the uppermost push clip and the push clip body 41 is 10 degrees, and the angle between the lowermost push clip and the push clip body 41 is 25 degrees. The length of the uppermost push clip 4 in the front-back direction is 8 mm, and the length of the lowermost push clip 4 in the front-back direction is 9 mm.

[0060] Preferably, the free end of the pusher tab is formed with a V-shaped end that matches the shape of the closed tail of the ligation clip. In this way, the V-shaped end facilitates the alignment of the pusher tab head 42 with the closed tail of the ligation clip and makes the contact between the pusher tab head 42 and the closed tail of the ligation clip more stable.

[0061] Example 2

[0062] This embodiment provides a push clip 4. The push clip 4 includes a push clip body 41 connected in sequence and a push clip head 42 for pushing the clamp ligation clip 13 to be inserted. The push clip head 42 has a bent portion and a pushing portion arranged in sequence from near to far. The bent portion connects the push clip body 41 and the pushing portion, so that the pushing portion is located on one side of the push clip body 41. The pushing portion consists of at least two pushing pieces arranged in a forked shape from top to bottom. The connecting end of all the pushing pieces is connected to the far end of the bent portion. The free end (i.e. the end opposite to the connecting end) of all the pushing pieces is used to abut against the closed tail of the clamp ligation clip 13 to be inserted.

[0063] The push clip 4 is configured in this way, with the push clip head 42 having a multi-piece structure. There are at least two line-surface contacts between the push clip head 42 and the closed tail of the clamp ligation clip 13 to be inserted (its supporting and pushing effect is similar to that of surface-to-surface contact), ensuring stable support. During the process of the clamp ligation clip 13 being delivered to the jaws, the wobbling or swaying of the clamp ligation clip 13 is unlikely to cause the closed tail of the clamp ligation clip 13 to disengage from the push clip head 42. Furthermore, because the pushing effect is similar to that of surface-to-surface contact, the clamp delivery is more stable. Moreover, with at least two push clips arranged in a forked shape, when the push clips are elastic, during the reset process of the push clip 4, the push clip head 42 can be compressed and deformed to pass over its adjacent ligation clip to push the next clamp ligation clip 13 to be inserted.

[0064] Preferably, the at least two pusher pieces include an uppermost pusher piece and a lowermost pusher piece. The free end of the uppermost pusher piece is inclined towards the pusher clip body 41 to abut against the upper part of the closed tail of the clamping clip 13. The free end of the lowermost pusher piece is inclined away from the pusher clip body 41 to abut against the lower part of the closed tail of the clamping clip 13. The angle between the uppermost pusher piece and the pusher clip body 41 is 5 to 20 degrees, and the angle between the lowermost pusher piece and the pusher clip body 41 is 5 to 20 degrees. This angled arrangement of the pusher pieces facilitates the elastic deformation of the at least two forked pusher pieces during the repositioning process of the pusher clip 4, allowing them to pass over their adjacent ligation clips.

[0065] More preferably, the length of the pusher in the front-to-back direction is 5-9 mm. A pusher of this length allows for easy elastic deformation so that the pusher clip 4 can pass over its adjacent ligation clip during repositioning, while also possessing sufficient strength to stably transmit the pushing force to the ligation clip 13 to be inserted.

[0066] The rest of the content is the same as in Example 1, and will not be repeated here.

[0067] Example 3

[0068] Based on the push clamp 4 proposed in Embodiment 1 or Embodiment 2, this embodiment also proposes the following improvements:

[0069] The first push piece 421 and the second push piece 422 are adjacent to each other. The far end of the side of the first push piece 421 facing the second push piece 422 is provided with at least one first protrusion 423. The far ends of all the first protrusions 423 are flush with the free end of the first push piece 421. The second push piece 422 is provided with a first slot 424 for accommodating each first protrusion 423.

[0070] Thus, by providing at least one first protrusion 423 on the first pusher piece 421, and having the distal end of the first protrusion 423 flush with the free end of the first pusher piece 421, both the distal end of the first protrusion 423 and the free end of the first pusher piece 421 can be used to abut against the closed tail of the receiving clamp ligation clip 13, widening the abutment surface and making the clamping action of the pusher piece head 42 more stable; by providing a first slot 424 for accommodating the first protrusion 423 on the second pusher piece 422 corresponding to each first protrusion 423, during the reset of the pusher piece 4, the first pusher piece 421 can be compressed and elastically deformed, causing the first protrusion 423 to fall into the first slot 424, preventing the volume of at least two pusher pieces after compression deformation from being too large to smoothly pass over their adjacent ligation clips.

[0071] Preferably, the far end of the side of the first push piece 421 facing the second push piece 422 is provided with three first protrusions 423, the first protrusion 423 is located in the middle of the V-shaped end of the push piece, the second first protrusion 423 is located on the left side of the V-shaped end of the push piece, and the third first protrusion 423 is located on the right side of the V-shaped end of the push piece.

[0072] Preferably, the distal end of the side of the second pusher piece 422 facing the first pusher piece 421 is provided with at least one second protrusion, and the distal ends of all the second protrusions are flush with the free end of the second pusher piece 422. The first pusher piece 421 is provided with a second slot for accommodating each second protrusion, and the first protrusion 423 and the second protrusion are staggered. In this way, the abutment surface of the pusher head 42 is further widened, and the feeding stability of the pusher head 42 is improved.

[0073] More preferably, the far end of the side of the second push piece 422 facing the first push piece 421 is provided with three second protrusions, the first second protrusion is located in the middle of the V-shaped end of the push piece, the second second protrusion is located in the left part of the V-shaped end of the push piece, and the third second protrusion is located in the right part of the V-shaped end of the push piece.

[0074] Specifically, such as Figure 10 As shown, in this embodiment, the push clip head 42 has two push clips, namely a first push clip 421 (i.e., the uppermost push clip) and a second push clip 422 (i.e., the lowermost push clip). The first push clip 421 has a first protrusion 423 at its far end facing the second push clip 422. The far end of the first protrusion 423 is flush with the free end of the first push clip 421. The second push clip 422 has a first slot 424 for accommodating the first protrusion 423 corresponding to the first protrusion 423. The first protrusion 423 is located in the middle of the V-shaped end of the push clip.

[0075] Example 4

[0076] Based on the push clamp 4 proposed in Embodiment 1 or Embodiment 2, this embodiment also proposes the following improvements:

[0077] The first pusher piece 421 and the second pusher piece 422 are adjacent to each other. A first convex bulge is punched at the distal end of the first pusher piece 421 in a first direction (the first direction can be upward or downward). A second convex bulge is punched at the distal end of the second pusher piece 422 in the first direction corresponding to the position of the first convex bulge. The distal end of the first convex bulge is flush with the free end of the first pusher piece 421, and the distal end of the second convex bulge is flush with the free end of the second pusher piece 422. The protruding side of the second convex bulge faces the concave side of the first convex bulge, and the concave side of the first convex bulge can accommodate the protruding side of the second convex bulge.

[0078] Thus, by setting the first convex bulge, both the distal end of the first convex bulge and the free end of the first pusher piece 421 can be used to abut the closed tail of the receiving clamp ligation clip 13. By setting the second convex bulge, both the distal end of the second convex bulge and the free end of the second pusher piece 422 can be used to abut the closed tail of the receiving clamp ligation clip 13, widening the abutment surface and making the clamping action of the pusher piece head 42 more stable. Since the concave side of the first convex bulge can accommodate the protruding side of the second convex bulge, during the reset process of the pusher piece 4, the second pusher piece 422 can be compressed and elastically deformed, causing the protruding side of the second convex bulge to fall into the concave side of the first convex bulge. This prevents the volume of at least two pusher pieces after compression deformation from becoming too large to smoothly pass over their adjacent ligation clips.

[0079] Specifically, in this embodiment, the push clip head 42 has two push clips, namely a first push clip 421 (i.e., the uppermost push clip) and a second push clip 422 (i.e., the lowermost push clip). The first push clip 421 is provided with a first convex bulge, and the second push clip 422 is provided with a second convex bulge. Both the first convex bulge and the second convex bulge are located in the middle of the V-shaped end of the push clip.

[0080] Example 5

[0081] This embodiment provides a push clip 4, which includes a push clip body 41 connected in sequence and a push clip head 42 for pushing the clamp ligation clip 13 to be inserted. The push clip head 42 has a bent portion and a pushing portion arranged in sequence from near to far. The bent portion connects the push clip body 41 and the pushing portion, so that the pushing portion is located on one side of the push clip body 41. The pushing portion has a first pushing piece and a second pushing piece arranged in a bifurcated shape in the vertical direction. The free end of the first pushing piece has a first working portion near its end, and the free end of the second pushing piece has a second working portion near its end. The free ends of the first pushing piece and the second pushing piece are used to clamp the closed tail of the clamp ligation clip 13 to be inserted. The first working portion and the second working portion are used to abut against the closed tail of the clamp ligation clip 13 to be inserted.

[0082] The push clip 4 is configured in this way, with the push clip head 42 having a two-piece structure. There are at least two line-surface contacts between the push clip head 42 and the closed tail of the clamp ligation clip 13 to be inserted (the pushing effect of the first and second acting parts is similar to the pushing effect of surface-to-surface contact), ensuring stable support. During the process of the clamp ligation clip 13 being delivered to the jaws, the wobbling or swaying of the clamp ligation clip 13 is unlikely to cause the closed tail of the clamp ligation clip 13 to disengage from the push clip head 42. Furthermore, because the pushing effect is similar to the pushing effect of surface-to-surface contact, the clamp delivery is more stable. Moreover, the two push clips are arranged in a forked shape. When the push clips are elastic, during the reset process of the push clip 4, the push clip head 42 can be compressed and deformed to pass over its adjacent clamp to push the next clamp ligation clip 13 to be inserted.

[0083] Preferably, the second pusher piece has a slot at its center in the left-right direction, corresponding to the first pusher piece, for receiving the first pusher piece. With this pusher part of this shape, the first and second pusher pieces can be manufactured by punching a single steel sheet, making the manufacturing process simple, convenient, and low-cost.

[0084] It should be noted that in this embodiment, the free end of the pusher does not need to abut against the closed tail of the clamp ligator 13 to be inserted. Therefore, the free end of the first pusher and the free end of the second pusher can be set as straight ends instead of V-shaped ends.

[0085] The remaining similarities to those in Example 1 will not be repeated here.

[0086] Example 6

[0087] like Figures 5 to 10 As shown, this embodiment provides a clamping device, which includes a clamping chamber 3 for accommodating multiple ligation clips and a pusher clip 4 as described in any of embodiments 1 to 5 for pushing the ligation clips. At least one clamping boss is provided in the middle of the left-right direction of the clamping chamber bottom plate 31. During the process of the ligation clip 13 being delivered to the clamp jaws, the top of the clamping boss always supports the closed tail of the ligation clip 13, making the closed tail of the ligation clip 13 parallel to the clamping chamber bottom plate 31.

[0088] In this way, the insertion protrusion supports the closed tail of the clamp 13 to be inserted, reducing the up-and-down swing of the closed tail of the clamp during the clamping process, ensuring the stable engagement between the push clamp head 42 and the closed tail of the clamp 13, making the clamping stable and reducing the possibility of clamp jamming.

[0089] Preferably, a boss 312 extending from the proximal end to the distal end of the clamping chamber 3 is provided in the middle of the clamping chamber base plate 31 in the left-right direction. The distal end of the boss 312 serves as an insertion boss. During clamping, the top of the proximal end of the boss 312 supports the closed tail of the ligation clip proximal to the clamping clamp 13, making the closed tail of the ligation clip proximal to the clamping clamp 13 parallel to the clamping chamber base plate 31. In this way, the boss 312 not only improves the clamping stability of the clamping clamp 13, but also improves the clamping stability of the ligation clip proximal to the clamping clamp 13.

[0090] In the description of this invention, it should be understood that 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 indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0091] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0092] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first and second features are in direct contact, or that they are in indirect contact through an intermediate medium. Furthermore, "above," "over," or "on top" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," or "beneath" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0093] In the description of this specification, the terms "one embodiment," "some embodiments," "embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0094] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make modifications, alterations, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A push clip, characterized in that, It includes a push clip body (41) connected in sequence and a push clip head (42) for pushing the clamp clamp (13) to be inserted. The push clip head (42) has at least two push clips arranged in a bifurcated manner from top to bottom. The connecting ends of all push clips are located on the same plane parallel to the push clip body (41). The free ends of all push clips are used to hold the closed tail of the clamp clamp (13) to be inserted. At least two pushers include an uppermost pusher for holding the upper part of the closed tail of the ligation clamp (13) and a lowermost pusher for holding the lower part of the closed tail of the ligation clamp (13); the free end of the pusher is formed with a V-shaped end that matches the shape of the closed tail of the ligation clamp; at least two pushers are elastic sheets.

2. The push clamp piece according to claim 1, characterized in that, The push clip body (41) is a flat plate. The connecting ends of all the push clips are connected to the far end of the push clip body (41). The free ends of all the push clips are used to hold the closed tail of the clamp clamp (13) to be inserted.

3. The push clamp piece according to claim 1, characterized in that, The push clip head (42) has a bent portion and a pushing portion arranged from near to far. The bent portion connects the push clip body (41) and the pushing portion, so that the pushing portion is located on one side of the push clip body (41). The pushing portion consists of at least two pushing pieces arranged from top to bottom in a forked manner. The connecting end of all the pushing pieces is connected to the far end of the bent portion. The free end of all the pushing pieces is used to hold the closed tail of the clamp clamp (13) to be inserted.

4. The push clamp piece according to claim 3, characterized in that, At least two pushers include an uppermost pusher and a lowermost pusher. The free end of the uppermost pusher is inclined toward the pusher clip body (41) to abut against the upper part of the closed tail of the clamping clamp (13). The free end of the lowermost pusher is inclined away from the pusher clip body (41) to abut against the lower part of the closed tail of the clamping clamp (13).

5. The push clamp according to claim 2 or 3, characterized in that, The push clip head (42) has two push clips, namely the first push clip (421) and the second push clip (422). The first push clip (421) and the second push clip (422) are adjacent to each other. The far end of the side of the first push clip (421) facing the second push clip (422) is provided with at least one first protrusion (423). The far ends of all the first protrusions (423) are flush with the free end of the first push clip (421). The second push clip (422) is provided with a first slot (424) for accommodating the first protrusion (423) for each first protrusion (423).

6. The push clamp according to claim 2 or 3, characterized in that, The push clip head (42) has two push clips, namely a first push clip (421) and a second push clip (422). The first push clip (421) and the second push clip (422) are adjacent to each other. A first convex bulge is punched at the far end of the first push clip (421) in a first direction. A second convex bulge is punched at the far end of the second push clip (422) in a first direction at the position corresponding to the first convex bulge. The far end of the first convex bulge is flush with the free end of the first push clip (421), and the far end of the second convex bulge is flush with the free end of the second push clip (422). The protruding side of the second convex hull faces the concave side of the first convex hull, and the concave side of the first convex hull can accommodate the protruding side of the second convex hull.

7. The push clamp piece according to claim 1, characterized in that, The push clamp head (42) has a bent portion and a pushing portion arranged from near to far. The bent portion connects the push clamp body (41) and the pushing portion, so that the pushing portion is located on one side of the push clamp body (41). The pushing portion has a first pushing piece and a second pushing piece arranged in a bifurcated manner in the vertical direction. The free end of the first pushing piece and the free end of the second pushing piece are used to clamp the closed tail of the clamp clamp (13) to be inserted.

8. The push clamp piece according to claim 7, characterized in that, The second push piece has a slot in the middle of its left and right sides corresponding to the first push piece, which is used to accommodate the first push piece.

9. A clamping device, characterized in that, It has a push clamp as described in any one of claims 1 to 6.

10. The clamping device according to claim 9, characterized in that, It also includes a clamping chamber (3) for accommodating multiple ligation clips; At least one clamping boss is provided in the middle of the left and right directions of the clamping chamber bottom plate (31). During the process of the clamping clamp (13) being sent to the jaws, the top of the clamping boss always supports the closed tail of the clamping clamp (13) to be clamped, so that the closed tail of the clamping clamp (13) to be clamped is parallel to the clamping chamber bottom plate (31); the pushing part of the clamping plate is set parallel to the clamping chamber bottom plate (31).

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