Jaw mechanism, jaw closure and release mechanism, and hemostatic clip

Abstract

The present disclosure relates to the technical field of hemostatic clips, and particularly to a jaw mechanism, a jaw closure and release mechanism, and a hemostatic clip. The jaw mechanism in the present disclosure comprises: clip pieces, and a connecting base, wherein a multi-stage locking member is arranged on the clip pieces or the connecting base, and the multi-stage locking member is used for locking the clip pieces at different positions. By means of the design of the multi-stage locking member, the present disclosure can achieve the locking of the clip pieces at different clip closure degrees, so as to meet clip closure requirements in different situations; moreover, the present disclosure has better practicability and operational convenience.

Description

Clamping mechanism, clamping and releasing mechanism and hemostatic clamp Technical Field

[0001] This disclosure relates to the field of hemostatic clip technology, specifically to clip mechanisms, clamping mechanisms, and hemostatic clips. Background Technology

[0002] With the development of endoscopic technology and other related technologies, endoscopic hemostasis has become the preferred treatment method for gastrointestinal bleeding. Commonly used endoscopic hemostasis methods include laser coagulation, electrocoagulation, local injection of hemostatic agents, drug spraying, and suture clipping. Among these, suture clipping has become the most effective and clinically valuable non-surgical treatment for gastrointestinal bleeding due to its minimal invasiveness, rapid hemostasis, low rebleeding rate, few complications, and definite efficacy.

[0003] Currently, hemostatic clips on the market are mainly divided into two types: sliding type and spring type. Both types of hemostatic clips consist of a clamp tube, a clamping plate, and a retaining pin. However, the current structural design of hemostatic clips has not achieved a good integration of clamping and release operations. The structures that enable clamping and release operations often interfere with each other, leading to misoperation during surgery.

[0004] For example, the technical solution disclosed in CN118356226A is "a clamp assembly and hemostatic clamp for use with an endoscope". In this technical solution, the first hook claw on the first hook cooperates with the first hook mounting hole, tear groove and release platform deformation hole on the clamping plate to realize the driving action of the first hook on the clamping plate and the disengagement action of the first hook from the clamping plate. In this method, the first hook claw needs to connect with the first hook mounting hole first, and then the tear groove is broken to make the first hook mounting hole and the release platform deformation hole connected, so that the first hook claw has sufficient disengagement space.

[0005] However, in this design, the first hook claw needs to control the clamping clip to close when it is still in place, and also needs to break the tear groove and slide into the deformation hole of the release platform when it is released. This makes the movement behavior of the first hook complex, resulting in greater difficulty in control during surgical operation and increasing the risk of operator error. Furthermore, this method requires two through holes—a first hook mounting hole and a release platform deformation hole—on a very small first hook, which significantly reduces the strength of the clip's tail. Although a tear groove is initially provided between the first hook mounting hole and the release platform deformation hole, this tear groove itself has low structural strength to ensure tearing effect, and cannot guarantee the strength of the clip's tail. This makes the clip prone to deformation or even damage during use, thus affecting surgical operation. In addition, this structural form also increases the manufacturing difficulty and cost.

[0006] Clearly, the current design of hemostatic clips does not achieve a good integration of clamping and release operations. The structures that enable clamping and release operations often interfere with each other, leading to misoperation during surgery.

[0007] Furthermore, hemostatic clips similar to those mentioned in the above documents, while capable of locking after clamping, only achieve this locking when the clip is at a specific degree of closure. In other words, locking is only possible when the clip is closed to a certain extent. This design has a certain drawback because the degree of closure varies when clamping lesions of different sizes, while the degree of closure is fixed when the clip is locked, leading to a conflict.

[0008] For example, when clamping smaller lesions, the clamp needs to be more tightly closed. However, since the clamp can only be locked at a specific degree of closure, the clamp may not close tightly enough, failing to guarantee sufficient clamping force and thus failing to adequately clamp smaller lesions, thereby affecting the effectiveness of hemostasis. Conversely, when clamping larger lesions, the clamp does not need to be particularly tight; the opening needs to be relatively larger to accommodate the larger lesion. However, since the clamp can only be locked at a specific degree of closure, the clamp may not close to the required degree of locking, failing to adequately clamp larger lesions. Forcing closure could result in excessive clamping force, potentially causing the clamp to spring open or deform, further affecting the effectiveness of hemostasis.

[0009] Including the hemostatic clips listed above, existing hemostatic clips also have other drawbacks, namely, the generation of fragments after release and the excessive number of parts remaining in the body. This poses a challenge for medical staff performing wound closure with hemostatic clips, requiring them to perform additional work to remove fragments and foreign bodies. The generation of fragments increases the workload of medical staff and also increases the surgical costs for patients. Sometimes, due to the patient's digestive peristalsis, fragments may shift with the patient's digestive tract before removal, and some debris may not be completely removed, creating potential uncertainties as it remains in the patient's body. Summary of the Invention

[0010] To address the technical problems of existing hemostatic clips, this disclosure provides a clamping mechanism, a clamping and releasing mechanism, and a hemostatic clip. It improves the structure of the clip by creating a three-way integrated hole at the tail of the clip. This integrated hole connects with the ball end of a metal wire, combining the clamping control of the clip with the release control between the wire and the clip. This reduces the complexity of the wire's movement, improves the ease of operation of the hemostatic clip, and prevents the clamping and release operations from interfering with each other during surgery. The multi-level locking design allows for locking of the clip at different clamping levels to meet the clamping needs of various situations, resulting in superior practicality and ease of operation. Furthermore, this technical solution does not generate foreign objects such as debris, avoiding potential uncertainties caused by foreign objects remaining in the patient's body and eliminating the need for additional foreign object removal operations during surgery.

[0011] To solve the above problems, the technical solution provided in this disclosure is as follows: a clamping mechanism, including a connecting seat, a metal wire, and two clamping plates; the two clamping plates intersect and are hinged to the connecting seat at the intersection; each clamping plate includes a clamping arm, a clamping tooth is fixedly provided on the clamping arm, and a clamping boss is fixedly provided at the end of the clamping arm; the clamping arm is inclined towards the side where the clamping tooth is located; the tail of each clamping plate is provided with a deformation hole and a connecting hole, the deformation hole and the connecting hole communicating to form a three-way integral hole, so that the tail of the clamping plate forms a first deformation wall and a second deformation wall; the connecting seat is provided with a guide hole, the metal wire passes through the guide hole, the metal wire includes two connecting segments, and a ball head is fixedly provided at the end of each of the two connecting segments; the diameter of the ball head is larger than the through size of the connecting hole, and the diameter of the ball head is smaller than the through size of the deformation hole; the two connecting segments respectively pass through the two connecting segments. The clamp has a connecting hole, and the ball head is located within the deformation hole. A stop locking platform is fixedly provided on the clamp near the connecting hole, and the stop locking platform includes a stop side and a non-stop side. Limit locking platforms are provided on both sides of the connecting seat, and the limit locking platforms include a limiting side and a non-limiting side. The non-stop side is used to abut against the non-limiting side, and the stop side is used to abut against the limiting side. A multi-level locking part is provided on the clamp or the connecting seat, and the multi-level locking part is used to lock the clamp at different positions. When the multi-level locking part is provided on the clamp, the multi-level locking part is located on the side where the non-stop side of the stop locking platform is located, and the multi-level locking part is used to abut against the limit locking platform. When the multi-level locking part is provided on the connecting seat, the multi-level locking part is located on the side where the non-limiting side of the limit locking platform is located, and the multi-level locking part is used to abut against the stop locking platform.

[0012] Optionally, when the multi-level locking part is disposed on the clip, the multi-level locking part includes n sub-level locking platforms, and the n sub-level locking platforms are continuously arranged along the non-stop side in a direction away from the stop side; the n sub-level locking platforms are connected to each other, and the termination locking platform is connected to the adjacent sub-level locking platform to form a stop groove, the stop groove being used to engage with the limiting locking platform; wherein, n≥1, and n∈N.

[0013] Optionally, the volume of the sub-level locking station is less than or equal to the volume of the termination locking station.

[0014] Optionally, when the multi-level locking part is disposed on the connecting seat, the multi-level locking part includes i sub-level limiting platforms, the i sub-level limiting platforms are continuously arranged along the non-limiting side in a direction away from the limiting side; limiting grooves are formed between the i sub-level limiting platforms and between the sub-level limiting platforms and the adjacent limiting locking platforms, the limiting grooves being used to engage with the termination locking platform; wherein, i≥1, and i∈N.

[0015] Optionally, the volume of the sub-level limiting stage is less than or equal to the volume of the limiting lock stage.

[0016] Optionally, the tilt angle A of the clamping arm is 0° to 30°.

[0017] Optionally, the clamping bosses located on the two clamping arms are staggered.

[0018] Optionally, the clips and connectors are made of non-magnetic elastic materials or non-magnetic absorbable materials.

[0019] A hemostatic clip includes the aforementioned clamping mechanism, and further includes a rotating base, a first rotating ring, a second rotating ring, and a hook. The rotating base is located on one side of the connecting base, and a limiting platform is fixedly provided on the rotating base. The first rotating ring is located inside the rotating base, and both ends of the first rotating ring abut against the limiting platform. The outer wall of the second rotating ring is fixedly connected to the inner wall of the first rotating ring, and an extension boss is fixedly provided on the second rotating ring. A first release hole is provided on the extension boss, and a second release hole is provided on the connecting base. A hook is fixedly provided at the end of the hook, and the hook passes through the first release hole and inserts into the second release hole.

[0020] Optionally, it also includes a handle, a sliding handle, a rotating wheel, a spindle, and a plastic-coated spring tube; the end of the handle is provided with a finger ring, and the hook is provided with a through hole; the plastic-coated spring tube is sleeved on the outside of the spindle, one end of the plastic-coated spring tube is fixedly connected to the end of the handle, and the other end of the plastic-coated spring tube is fixedly connected to the rotating ring seat; the sliding handle is slidably disposed on the handle; one end of the spindle is fixedly connected to the sliding handle through a fixing tube, and the other end of the spindle passes through the through hole and is fixedly connected to the metal wire through a connecting tube; the rotating wheel is rotatably connected to the handle, and a flat part is provided inside the rotating wheel; the spindle passes through the flat part and is engaged with the flat part through a guide tube.

[0021] The technical solution provided in this disclosure is as follows: a clamp assembly, including a connecting seat, a metal wire, and two clamping plates; the two clamping plates intersect and are hinged to the connecting seat, and the tail of each clamping plate is provided with a deformation hole and a connecting hole, the deformation hole and the connecting hole communicating to form a three-way integral hole, so that the tail of the clamping plate forms a first deformation wall and a second deformation wall; the connecting seat is provided with a guide hole, the metal wire passes through the guide hole, the metal wire includes two connecting segments, and each end of the two connecting segments is fixedly provided with a ball head, the through size of the connecting hole is smaller than the diameter of the ball head, the two connecting segments respectively pass through the connecting holes on the two clamping plates, and the ball head is located in the deformation hole; a stop lock is fixedly provided on the clamping plate near the connecting hole. The platform includes a termination lock platform with a stop side and a non-stop side; the connecting seat has limit lock platforms on both sides, each limit lock platform having a limiting side and a non-limiting side; the non-stop side is used to abut against the non-limiting side, and the stop side is used to abut against the limiting side; the clamping piece or the connecting seat has a multi-level locking part, which is used to lock the clamping piece at different positions; when the multi-level locking part is provided on the clamping piece, the multi-level locking part is located on the side where the non-stop side of the termination lock platform is located, and the multi-level locking part is used to abut against the limit lock platform; when the multi-level locking part is provided on the connecting seat, the multi-level locking part is located on the side where the non-limiting side of the limit lock platform is located, and the multi-level locking part is used to abut against the termination lock platform.

[0022] Optionally, when the multi-level locking part is disposed on the clip, the multi-level locking part includes n sub-level locking platforms, and the n sub-level locking platforms are continuously arranged along the non-stop side in a direction away from the stop side; the n sub-level locking platforms are connected to each other, and the termination locking platform is connected to the adjacent sub-level locking platform to form a stop groove, the stop groove being used to engage with the limiting locking platform; wherein, n≥1, and n∈N.

[0023] Optionally, the volume of the sub-level locking station is less than or equal to the volume of the termination locking station.

[0024] Optionally, when the multi-level locking part is disposed on the connecting seat, the multi-level locking part includes i sub-level limiting platforms, the i sub-level limiting platforms are continuously arranged along the non-limiting side in a direction away from the limiting side; limiting grooves are formed between the i sub-level limiting platforms and between the sub-level limiting platforms and the adjacent limiting locking platforms, the limiting grooves being used to engage with the termination locking platform; wherein, i≥1, and i∈N.

[0025] Optionally, the volume of the sub-level limiting stage is less than or equal to the volume of the limiting lock stage.

[0026] Optionally, the clip includes a clamping arm, wherein for any one of the clips, the head end of the clamping arm is tilted toward the side where the clamping arm is located on the other clip.

[0027] Optionally, the tilt angle A of the clamping arm is 0° to 30°.

[0028] Optionally, the clips and connectors are made of non-magnetic elastic materials or non-magnetic absorbable materials.

[0029] A clamping and releasing mechanism includes the aforementioned clamp assembly, comprising a rotating ring seat, a first rotating ring, a second rotating ring, and a hook; the rotating ring seat is located on one side of the connecting seat, and a limiting platform is fixedly provided on the rotating ring seat; the first rotating ring is located inside the rotating ring seat, and both ends of the first rotating ring abut against the limiting platform respectively; the outer wall of the second rotating ring is fixedly connected to the inner wall of the first rotating ring, and an extending boss is fixedly provided on the second rotating ring; a first release hole is provided on the extending boss; a second release hole is provided on the connecting seat; a hook is fixedly provided at the end of the hook; the hook passes through the first release hole and inserts into the second release hole; and a through hole is also provided on the hook.

[0030] A hemostatic clip includes the aforementioned clamping and releasing mechanism, and further includes a handle, a sliding handle, a rotating wheel, a plastic-coated spring tube, and a mandrel; the end of the handle is provided with a finger ring; the plastic-coated spring tube is sleeved on the outside of the mandrel, one end of the plastic-coated spring tube is fixedly connected to the end of the handle, and the other end of the plastic-coated spring tube is fixedly connected to the rotating ring seat; the sliding handle is slidably disposed on the handle; one end of the mandrel is fixedly connected to the sliding handle through a fixing tube, and the other end of the mandrel passes through the through hole and is fixedly connected to the metal wire through a connecting tube; the rotating wheel is rotatably connected to the handle, and a flat part is provided inside the rotating wheel; the mandrel passes through the flat part and is engaged with the flat part through a conduit.

[0031] This disclosure also provides a solution: a clamping mechanism, including a connecting seat, a metal wire, and two clamping plates; the two clamping plates intersect and are hinged to the connecting seat at the intersection; each clamping plate includes a clamping arm, a clamping tooth is fixedly provided on the clamping arm, and a clamping boss is fixedly provided at the end of the clamping arm; the clamping arm is inclined towards the side where the clamping tooth is located; a hanging platform is fixedly provided at the tail of each clamping plate, and locking platforms are provided on both sides of the connecting seat, the hanging platform being used to engage with the locking platform; a deformation hole and a connecting through hole are provided on the clamping plate near the hanging platform, the deformation hole and the connecting through hole... A three-way integrated hole is formed so that the tail of the clamping piece near the mounting platform forms a first deformation wall and a second deformation wall; a guide hole is provided on the connecting seat, and a metal wire passes through the guide hole. The metal wire includes a first segment and a second segment, and a ball head is fixedly provided at the end of each of the first segment and the second segment; the diameter of the ball head is larger than the through size of the connecting through hole, and the diameter of the ball head is smaller than the through size of the deformation hole; the first segment and the second segment respectively pass through the connecting through holes on the two clamping pieces, and the ball head is located in the deformation hole.

[0032] Optionally, the tilt angle A of the clamping arm is 0° to 30°.

[0033] Optionally, the clamping bosses located on the two clamping arms are staggered.

[0034] Optionally, the diameter of the guide hole is greater than or equal to the sum of the diameters of the ball heads.

[0035] Optionally, there is a length difference ΔL between the first segment and the second segment, wherein ΔL is greater than or equal to the diameter of the ball head.

[0036] Optionally, the distance D between the boundary of the first deformable wall and the boundary of the second deformable wall on the side near the deformable hole and the boundary on the other side is 0.3 to 1.5 mm.

[0037] Optionally, the clips and connectors are made of non-magnetic elastic materials or non-magnetic absorbable materials.

[0038] A hemostatic clip includes the aforementioned clamping mechanism, and further includes a rotating base, a first rotating ring, a second rotating ring, and a hook. The rotating base is located on one side of the connecting base, and a limiting platform is fixedly provided on the rotating base. The first rotating ring is located inside the rotating base, and both ends of the first rotating ring abut against the limiting platform. The outer wall of the second rotating ring is fixedly connected to the inner wall of the first rotating ring, and an extension boss is fixedly provided on the second rotating ring. A first release hole is provided on the extension boss, and a second release hole is provided on the connecting base. A hook is fixedly provided at the end of the hook, and the hook passes through the first release hole and inserts into the second release hole.

[0039] Optionally, it also includes a handle, a sliding handle, a rotating wheel, a spindle, and a plastic-coated spring tube; the end of the handle is provided with a finger ring, and the hook is provided with a through hole; the plastic-coated spring tube is sleeved on the outside of the spindle, one end of the plastic-coated spring tube is fixedly connected to the end of the handle, and the other end of the plastic-coated spring tube is fixedly connected to the rotating ring seat; the sliding handle is slidably disposed on the handle; one end of the spindle is fixedly connected to the sliding handle through a fixing tube, and the other end of the spindle passes through the through hole and is fixedly connected to the metal wire through a connecting tube; the rotating wheel is rotatably connected to the handle, and a flat part is provided inside the rotating wheel; the spindle passes through the flat part and is engaged with the flat part through a guide tube.

[0040] The technical solution provided in this disclosure is as follows: a clamp assembly, including a connecting seat, a metal wire, and two clamping plates; the two clamping plates intersect and are hinged to the connecting seat, a hanging platform is fixedly provided at the tail of each clamping plate, and locking platforms are provided on both sides of the connecting seat, the hanging platform being used to engage with the locking platform; a deformation hole and a connecting through hole are provided near the hanging platform of each clamping plate, the deformation hole and the connecting through hole are connected to form a three-way integral hole, so that the tail of the clamping plate forms a first deformation wall and a second deformation wall; a guide hole is provided on the connecting seat, the metal wire passes through the guide hole, the metal wire includes a first segment and a second segment, the ends of the first segment and the second segment are fixedly provided with ball heads, the through-hole size is smaller than the diameter of the ball head, the first segment and the second segment respectively pass through the connecting through holes on the two clamping plates, and the ball head is located in the deformation hole.

[0041] Optionally, the clip includes a clamping arm, wherein for any one of the clips, the head end of the clamping arm is tilted toward the side where the clamping arm is located on the other clip.

[0042] Optionally, the tilt angle A of the clamping arm is 0° to 30°.

[0043] Optionally, the diameter of the guide hole is greater than or equal to the sum of the diameters of the ball heads.

[0044] Optionally, the clips and connectors are made of non-magnetic elastic materials or non-magnetic absorbable materials.

[0045] A clamping and releasing mechanism includes the aforementioned clamping assembly, and further includes a rotating ring seat, a first rotating ring, a second rotating ring, and a hook. The rotating ring seat is located on one side of the connecting seat, and a limiting platform is fixedly provided on the rotating ring seat. The first rotating ring is located inside the rotating ring seat, and both ends of the first rotating ring abut against the limiting platform. The outer wall of the second rotating ring is fixedly connected to the inner wall of the first rotating ring. An extending boss is fixedly provided on the second rotating ring, and a first release hole is provided on the extending boss. A second release hole is provided on the connecting seat. A hanging claw is fixedly provided at the end of the hook, and the hanging claw passes through the first release hole and inserts into the second release hole. A through hole is also provided on the hook.

[0046] A hemostatic clip includes the aforementioned clamping and releasing mechanism, and further includes a handle, a sliding handle, a rotating wheel, a plastic-coated spring tube, and a mandrel; the end of the handle is provided with a finger ring; the plastic-coated spring tube is sleeved on the outside of the mandrel, one end of the plastic-coated spring tube is fixedly connected to the end of the handle, and the other end of the plastic-coated spring tube is fixedly connected to the rotating ring seat; the sliding handle is slidably disposed on the handle; one end of the mandrel is fixedly connected to the sliding handle through a fixing tube, and the other end of the mandrel passes through the through hole and is fixedly connected to the metal wire through a connecting tube; the rotating wheel is rotatably connected to the handle, and a flat part is provided inside the rotating wheel; the mandrel passes through the flat part and is engaged with the flat part through a conduit.

[0047] In addition, this disclosure also provides a solution: a clamping mechanism, including: a clamping piece; and a connecting seat, wherein the clamping piece or the connecting seat is provided with a multi-level locking part, the multi-level locking part being used to lock the clamping piece at different positions.

[0048] Optionally, the clamp is provided with a stop lock, the stop lock includes a stop side and a non-stop side, and the connecting seat is provided with a limit lock, the limit lock includes a limit side and a non-limit side.

[0049] Optionally, when the multi-level locking part is disposed on the clamping piece, the multi-level locking part is located on the non-stop side of the termination locking platform, and the multi-level locking part is used to abut against the limiting locking platform.

[0050] Optionally, the multi-level locking unit includes n sub-level locking platforms, where n is an integer greater than or equal to 1. The n sub-level locking platforms are continuously arranged along the non-stop side in a direction away from the stop side, and stop grooves are provided between the n sub-level locking platforms and between the stop locking platform and the adjacent sub-level locking platform. The stop grooves are used to engage with the limit locking platform.

[0051] Optionally, the volume of the sub-level locking station is less than or equal to the volume of the termination locking station.

[0052] Optionally, when the multi-level locking part is disposed on the connecting seat, the multi-level locking part is located on the non-restricted side of the limiting lock table, and the multi-level locking part is used to abut against the termination lock table.

[0053] Optionally, the multi-level locking unit includes i sub-level limiting platforms, where i is an integer greater than or equal to 1. The i sub-level limiting platforms are continuously arranged along the non-limiting side in a direction away from the limiting side, and limiting grooves are provided between the i sub-level limiting platforms and between the sub-level limiting platforms and the adjacent limiting locking platform. The limiting grooves are used to engage with the termination locking platform.

[0054] Optionally, the volume of the sub-level limiting stage is less than or equal to the volume of the limiting lock stage.

[0055] Optionally, the clip and / or the connector are made of a non-magnetic elastic material or a non-magnetic absorbable material.

[0056] A clamping and releasing mechanism includes the clamping mechanism described above. Optionally, the clamping and releasing mechanism further includes: a rotating ring seat, on which a limiting platform is fixedly disposed; a first rotating ring located within the rotating ring seat, with both ends of the first rotating ring abutting against the limiting platform; a second rotating ring, the outer wall of which is fixedly connected to the inner wall of the first rotating ring, and an extending protrusion fixedly disposed on the second rotating ring; and a hook, the end of which is fixedly disposed with a hanging claw, wherein a first release hole is disposed on the extending protrusion, a second release hole is disposed on the connecting seat, and the hanging claw passes through the first release hole and inserts into the second release hole.

[0057] A hemostatic clip includes the aforementioned clamping and releasing mechanism. Optionally, the hemostatic clip further includes: a handle, the end of which is provided with a finger ring; a sliding handle slidably disposed on the handle; a rotating wheel rotatably connected to the handle; a mandrel, one end of which is fixedly connected to the sliding handle via a fixing tube, and the other end of which passes through a through hole provided on the hook and is fixedly connected to a metal wire in the clamping mechanism via a connecting tube; and a spring tube sleeved on the outside of the mandrel, one end of which is fixedly connected to the end of the handle, and the other end of which is fixedly connected to the rotating ring seat, wherein the rotating wheel is provided with a flat section, and the mandrel passes through the flat section and is engaged with the flat section via a conduit.

[0058] Compared with the prior art, the technical solution provided in this disclosure has the following beneficial effects: Addressing the technical problems of defects in existing hemostatic clips, this disclosure proposes a clip mechanism and hemostatic clip, improving the structure of the clip. A three-way integrated hole is opened at the tail of the clip, which is connected to the ball end of the metal wire, thereby combining the clamping control of the clip and the disengagement control between the metal wire and the clip. This avoids the clamping and disengagement operations of the clip affecting each other during surgery. Furthermore, a deformation hole and a connecting through hole are integrated at the tail of the clip, which are connected to the ball end of the metal wire. This single mating structure combines the clamping control and disengagement control of the clip, reducing the complexity of the metal wire movement, improving the ease of operation of the hemostatic clip, and preventing the clamping and disengagement operations of the clip from affecting each other during surgery.

[0059] Most importantly, this disclosure, through the design of a multi-level locking mechanism, enables the clamping piece to be locked at different clamping degrees to meet the clamping requirements of different situations, and has superior practicality and ease of operation.

[0060] Furthermore, in this technical solution, the deformation hole and the connecting hole are designed as an integrated three-way hole, which can not only avoid the impact on the strength of the clamping piece due to the opening of multiple holes, and prevent the clamping piece from deforming or even being damaged during use, but also ensure that the first deformation wall and the second deformation wall have sufficient deformation to meet the locking action of the clamping piece and the disengagement action of the metal wire from the clamping piece.

[0061] In addition, this integrated hole structure can greatly reduce the processing difficulty, as there is no need to consider the relative positioning relationship between the deformation hole and the connecting hole, and the precision requirements for design and manufacturing can be greatly reduced.

[0062] In addition, this technical solution does not produce foreign objects such as debris, avoiding the potential uncertainties caused by foreign objects remaining in the patient's body, and also avoiding additional foreign object removal operations during surgery. Attached Figure Description

[0063] Figure 1 is one of the structural schematic diagrams of the clamping mechanism proposed in Embodiment 1 of this disclosure.

[0064] Figure 2 is one of the structural schematic diagrams of the clip proposed in Embodiment 1 of this disclosure.

[0065] Figure 3 is a second schematic diagram of the clip structure proposed in Embodiment 1 of this disclosure.

[0066] Figure 4 is a third schematic diagram of the clip structure proposed in Embodiment 1 of this disclosure.

[0067] Figure 5 is a fourth schematic diagram of the clip structure proposed in Embodiment 1 of this disclosure.

[0068] Figure 6 is one of the structural schematic diagrams of the connector proposed in Embodiment 1 of this disclosure.

[0069] Figure 7 is a second schematic diagram of the connecting seat proposed in Embodiment 1 of this disclosure.

[0070] Figure 8 is a third structural schematic diagram of the connector proposed in Embodiment 1 of this disclosure.

[0071] Figure 9 is one of the schematic diagrams of the clamping mechanism proposed in Embodiment 1 of this disclosure.

[0072] Figure 10 is a second schematic diagram of the clamping mechanism proposed in Embodiment 1 of this disclosure.

[0073] Figure 11 is one of the structural schematic diagrams of the clamping and releasing mechanism proposed in Embodiment 1 of this disclosure.

[0074] Figure 12 is a second schematic diagram of the clamping and releasing mechanism proposed in Embodiment 1 of this disclosure.

[0075] Figure 13 is a third schematic diagram of the clamping and releasing mechanism proposed in Embodiment 1 of this disclosure.

[0076] Figure 14 is one of the structural schematic diagrams of the clamping mechanism proposed in Embodiment 2 of this disclosure.

[0077] Figure 15 is one of the structural schematic diagrams of the clip proposed in Embodiment 2 of this disclosure.

[0078] Figure 16 is an enlarged schematic diagram of the tail structure of the clip proposed in Embodiment 2 of this disclosure.

[0079] Figure 17 is a second schematic diagram of the clip structure proposed in Embodiment 2 of this disclosure.

[0080] Figure 18 is a third schematic diagram of the clip structure proposed in Embodiment 2 of this disclosure.

[0081] Figure 19 is the fourth schematic diagram of the clip structure proposed in Embodiment 2 of this disclosure.

[0082] Figure 20 is a schematic diagram of the working mechanism of the clamping mechanism proposed in Embodiment 2 of this disclosure.

[0083] Figure 21 is one of the closed schematic diagrams of the clamping mechanism proposed in Embodiment 2 of this disclosure.

[0084] Figure 22 is a second schematic diagram of the closure of the clamping mechanism proposed in Embodiment 2 of this disclosure.

[0085] Figure 23 is a second schematic diagram of the chuck mechanism proposed in Embodiment 2 of this disclosure.

[0086] Figure 24 is a third schematic diagram of the chuck mechanism proposed in Embodiment 2 of this disclosure.

[0087] Figure 25 is a schematic diagram of the connecting seat proposed in Embodiment 2 of this disclosure.

[0088] Figure 26 is a schematic diagram of the structure of the first rotating ring proposed in Embodiment 3 of this disclosure.

[0089] Figure 27 is a schematic diagram of the structure of the second rotating ring proposed in Embodiment 3 of this disclosure.

[0090] Figure 28 is a schematic diagram of the hook structure proposed in Embodiment 3 of this disclosure.

[0091] Figure 29 is a schematic diagram of the hemostatic clip proposed in Embodiment 4 of this disclosure.

[0092] Figure 30 is one of the working schematic diagrams of the hemostatic clip proposed in Embodiment 4 of this disclosure.

[0093] Figure 31 is a second schematic diagram of the working of the hemostatic clip proposed in Embodiment 4 of this disclosure.

[0094] Figure 32 is a third schematic diagram of the working of the hemostatic clip proposed in Embodiment 4 of this disclosure. Detailed Implementation

[0095] To further understand the contents of this disclosure, a detailed description of this disclosure will be provided in conjunction with the accompanying drawings and embodiments.

[0096] The present application will be further described in detail below with reference to the accompanying drawings and embodiments. It is understood that the specific embodiments described herein are merely for explaining the relevant disclosure and not for limiting the disclosure. Furthermore, it should be noted that, for ease of description, only the parts related to the disclosure are shown in the accompanying drawings. The terms "first," "second," etc., used in this disclosure are for the convenience of describing the technical solutions of this disclosure and have no specific limiting effect; they are all general terms and do not constitute a limitation on the technical solutions of this disclosure. It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of this application can be combined with each other. In the description of this disclosure, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this disclosure and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this disclosure. In addition, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this disclosure based on the specific circumstances. Multiple technical solutions in the same embodiment, as well as multiple technical solutions in different embodiments, can be arranged and combined to form new technical solutions that do not contradict or conflict, all of which are within the scope of protection claimed in this disclosure.

[0097] Example 1

[0098] Referring to Figures 1 to 13, this embodiment proposes a clamping mechanism, including a connecting seat 1, a metal wire, and two clamping plates 3. The two clamping plates 3 intersect, and the intersection is hinged to the connecting seat 1. Each clamping plate 3 includes a clamping arm 35, on which a clamping tooth 36 is fixedly provided. A clamping boss 37 is fixedly provided at the end of the clamping arm 35, and the clamping arm 35 is inclined toward the side where the clamping tooth 36 is located.

[0099] The tail of the clip 3 is provided with a deformation hole 31 and a connecting hole 32. The deformation hole 31 and the connecting hole 32 are connected to form a three-way integral hole, so that the tail of the clip 3 forms a first deformation wall 33 and a second deformation wall 34. The connecting seat 1 is provided with a guide hole 11. The metal wire passes through the guide hole 11. The metal wire includes two connecting segments 20. The ends of the two connecting segments 20 are fixedly provided with ball heads 23. The diameter of the ball head 23 is larger than the passage size of the connecting hole 32 and smaller than the passage size of the deformation hole 31. The two connecting segments 20 pass through the connecting holes 32 on the two clips 3 respectively, and the ball heads 23 are located in the deformation holes 31.

[0100] A stop lock plate 30 is fixedly provided on the clamping plate 3 near the connecting hole 32. The stop lock plate 30 includes a stop side 301 and a non-stop side 302. Limit lock plates 10 are provided on both sides of the connecting seat 1. The limit lock plates 10 include a limiting side 101 and a non-limiting side 102. The non-stop side 302 is used to abut against the non-limiting side 102, and the stop side 301 is used to abut against the limiting side 101.

[0101] The clamping plate 3 or the connecting seat 1 is provided with a multi-level locking part, which is used to lock the clamping plate 3 in different positions. When the multi-level locking part is provided on the clamping plate 3, the multi-level locking part is located on the side where the non-stop side 302 of the stop lock table 30 is located, and the multi-level locking part is used to abut against the limit lock table 10; when the multi-level locking part is provided on the connecting seat 1, the multi-level locking part is located on the side where the non-limiting side 102 of the limit lock table 10 is located, and the multi-level locking part is used to abut against the stop lock table 30.

[0102] The clamping mechanism of this embodiment is a component of the hemostatic clamp. Its connecting seat 1 needs to be connected to other parts of the hemostatic clamp, and the metal wire also needs to be connected to the traction mechanism in the hemostatic clamp. For the sake of simplicity, this embodiment will not elaborate on the other parts of the hemostatic clamp, but it should be noted that the metal wire will be pulled along the axial direction of the connecting seat 1 by the traction action of the traction mechanism in the hemostatic clamp.

[0103] The clamping mechanism of this embodiment operates in three stages: opening and closing of the clamping piece 3, locking of the clamping piece 3 at different degrees of clamping, and disengagement of the metal wire from the clamping piece 3 after locking. The clamping of the clamping piece 3 and the disengagement of the clamping piece 3 from the metal wire are achieved through a three-way integrated hole formed by the connection between the deformation hole 31 and the connecting hole 32, which engages with the ball end 23 of the metal wire. The locking of the clamping piece 3 at different degrees of clamping is achieved through the cooperation between the stop locking platform 30, the limit locking platform 10, and the multi-stage locking part. In summary, the clamping mechanism of this embodiment combines the clamping and disengagement control of the clamping piece 3 by connecting the deformation hole 31 and the connecting hole 32 with the ball end 23 of the metal wire.

[0104] The opening and closing process of the clamp 3 mainly refers to the control of the opening and closing of the clamp 3. Its working principle is as follows: the metal wire is pushed or pulled along the axis. Since the ball head 23 at the end of the connecting segment 20 is connected to the deformation hole 31 and the connecting hole 32, and the through size of the connecting hole 32 is smaller than the diameter of the ball head 23, the clamp 3 will move with the movement of the metal wire, thereby realizing the opening and closing of the clamp 3.

[0105] During hemostasis using the clamping method, once the clamp 3 has clamped the lesion tissue, it is necessary to maintain the clamping of the lesion tissue with the clamp 3. It is conceivable that in actual operation, since the volume of the lesion tissue to be clamped by the clamping method varies, the opening size between the clamps 3 will also vary, meaning the clamping degree of the clamping mechanism will not be uniform. When clamping a larger volume of lesion tissue, the opening size between the clamps 3 will be relatively larger, while when clamping a smaller volume of lesion tissue, the opening size between the clamps 3 will be relatively smaller. Therefore, locking the clamps 3 at a certain degree of clamping is crucial.

[0106] The locking principle of the clamp 3 is closely related to the structure of the connector assembly, that is, it is closely related to the setting form of the multi-level locking part. It can be roughly divided into two cases: one is that the multi-level locking part is located on the clamp 3, that is, the multi-level locking is achieved by the multi-level locking part on the clamp 3 or the stop locking plate 30 abutting against the limit locking plate 10 on the connecting seat 1; the other is that the multi-level locking part is located on the connecting seat 1, that is, the multi-level locking is achieved by the multi-level locking part on the connecting seat 1 or the limit locking plate 10 abutting against the stop locking plate 30 on the clamp 3.

[0107] Taking the multi-level locking part disposed on the clamping piece 3 as an example, in this embodiment, the multi-level locking part includes n sub-level locking platforms 303, which are continuously arranged along the non-stopping side 302 in a direction away from the stopping side 301; the n sub-level locking platforms 303 are connected to each other, and the termination locking platform 30 is connected to the adjacent sub-level locking platform 303 to form a stop groove 304, which is used to engage with the limiting locking platform 10; wherein, n≥1, and n∈N.

[0108] Based on this implementation, after the clamping piece 3 clamps the lesion tissue, by continuing to pull the metal wire, the sub-level locking platform 303 comes into contact with and is squeezed against the limiting locking platform 10. Due to the presence of the deformation hole 31, the first deformation wall 33 and the second deformation wall 34 will be fully deformed, causing part of the sub-level locking platform 303 to cross the limiting locking platform 10. At this time, because the lesion tissue will exert a reaction force on the clamping piece 3, the clamping piece 3 cannot be pulled further at a certain degree of clamping. At this time, the sub-level locking platform 303 that crosses the limiting locking platform 10 and is adjacent to the limiting locking platform 10 will abut against the limiting side 101 of the limiting locking platform 10. It can also be understood that the limiting locking platform 10 is stuck in the corresponding stop groove 304 at this time. At this time, the deformation hole 31 has also been reset, causing the clamping piece 3 to be unable to rotate back to reset. At this time, the locking of the clamping mechanism at a certain degree of opening is achieved.

[0109] Of course, if the volume of the lesion tissue to be clamped is large enough, it is possible that after only one sub-level locking platform 303 crosses the limiting locking platform 10, the clamping piece 3 will be unable to continue rotating. The locking principle in this case is the same as described above and will not be repeated. If the volume of the lesion tissue to be clamped is small enough, it is possible that all n sub-level locking platforms 303 cross the limiting locking platform 10. In this case, the clamping piece 3 is locked by the cooperation of the terminating locking platform 30 and the limiting locking platform 10. That is, the terminating locking platform 30 also crosses the limiting locking platform 10, and the stop side 301 of the terminating locking platform 30 abuts against the limiting side 101 of the limiting locking platform 10, thereby achieving clamping and locking in the minimum closed state of the clamping piece 3.

[0110] As can be imagined, the number of sub-level locking platforms 303 can be arbitrary. Taking Figures 1, 2, and 4 as examples, in the embodiments shown in these figures, there is only one sub-level locking platform. There is a stop groove 304 between a sub-level locking platform and a stop locking platform 30, which can provide an additional level of locking. With the locking cooperation between the stop locking platform 30 and the limit locking platform 10, a total of two levels of locking can be achieved, that is, a total of two opening degrees of locking of the clip 3 can be achieved.

[0111] Generally, the volume of the sub-locking stage 303 can be the same as the volume of the terminating locking stage 30. However, to ensure the tightness of the clamping, more sub-locking stages 303 need to extend beyond the limiting locking stage 10. Therefore, in a preferred embodiment, the volume of the sub-locking stage 303 can be smaller than the volume of the terminating locking stage 30. In short, the volume of the sub-locking stage 303 should be less than or equal to the volume of the terminating locking stage 30.

[0112] As can be imagined, similar to the principle of the above-described embodiments, the multi-level locking part can also be a plurality of grooves, a plurality of hooks 7, or other forms of locking structure provided at the tail of the clamping piece 3 and continuously arranged along the swing direction of the clamping piece 3. In short, the multi-level locking part can ensure that when the clamping piece 3 swings to different amplitudes, the tail of the clamping piece 3 can cooperate with the limiting locking platform 10 on the connecting seat 1. Relying on the locking action between the multi-level locking part and the limiting locking platform 10, the clamping mechanism can be locked under different clamping degrees.

[0113] Another embodiment takes the multi-level locking part being provided on the connecting seat 1 as an example. In this embodiment, the multi-level locking part includes i sub-level limiting platforms 103, which are continuously arranged along the non-limiting side 102 in a direction away from the limiting side 101. Limiting grooves 104 are formed between the i sub-level limiting platforms 103 and between the sub-level limiting platforms 103 and the adjacent limiting locking platform 10. The limiting grooves 104 are used to engage with the termination locking platform 30. Wherein, i≥1 and i∈N.

[0114] Similar to the aforementioned sub-level locking platform 303, this embodiment proposes to set i sub-level limiting platforms 103 on the connecting seat 1. The locking of the clamping mechanism at a certain opening degree is achieved by the engagement of the termination locking platform 30 at the tail of the clamping piece 3 with the limiting groove 104 in this embodiment.

[0115] The specific principle is as follows: When the clamping piece 3 rotates, the presence of the deformation hole 31 causes the termination locking stage 30 to pass through one or more sub-level limiting stages 103. When it reaches a suitable clamping degree, the reaction force exerted by the diseased tissue on the clamping piece 3 prevents it from continuing to swing. At this time, the termination locking stage 30 will lock into a corresponding limiting groove 104, thus restricting the movement of the clamping piece 3 and preventing it from rotating back to its original position. Locking into different limiting grooves 104 means that the clamping mechanism is locked at different opening degrees.

[0116] Similar to the aforementioned implementation, if the volume of the diseased tissue to be clamped is small enough, it is possible that the termination locking stage 30 may extend beyond all i-level limiting stages 103. In this case, the clamping piece 3 is locked by the cooperation of the termination locking stage 30 and the limiting locking stage 10. That is, the termination locking stage 30 will eventually extend beyond the limiting locking stage 10, and the stop side 301 of the termination locking stage 30 will abut against the limiting side 101 of the limiting locking stage 10, thereby achieving clamping and locking when the clamping piece 3 is in its minimum closed state.

[0117] As can be imagined, the number of sub-level limiting platforms 103 can be arbitrary. Taking Figures 6 and 7 as examples, in the embodiments of these figures, there is only one sub-level limiting platform 103. There is a limiting groove 104 between a sub-level limiting platform 103 and a limiting lock platform 10, which can provide an additional level of locking. With the locking cooperation between the termination lock platform 30 and the limiting lock platform 10, a total of two levels of locking can be achieved, that is, a total of two opening degrees of locking of the clamping piece 3 can be achieved.

[0118] Generally, the volume of the sub-level limiting stage 103 can be the same as the volume of the limiting locking stage 10. However, in order to ensure the clamping tightness as much as possible, the terminating locking stage 30 needs to pass over as many sub-level limiting stages 103 as possible. Therefore, in a preferred embodiment, the volume of the sub-level limiting stage 103 can be smaller than the volume of the limiting locking stage 10. In short, the volume of the sub-level limiting stage 103 is less than or equal to the volume of the limiting locking stage 10.

[0119] Combining the two different implementations of the aforementioned multi-level locking parts, it can be seen that the limit travel of the clip 3 when it is not locked is the position of the clip 3 when the multi-level locking part on the clip 3 just abuts against the non-limiting side 102 of the limit lock table 10, or the position of the clip 3 when the multi-level locking part on the connecting seat 1 just abuts against the non-stopping side 302 of the termination lock table 30.

[0120] The separation of the metal wire from the clamp 3 occurs after the clamp 3 is locked. The principle is as follows: Continuing to pull the metal wire prevents the clamp 3 from moving further, causing the ball head 23 to continue exerting force on the first deformable wall 33 and the second deformable wall 34. The first and second deformable walls 33 and 34 continue to deform until the diameter of the connecting hole 32 exceeds the diameter of the ball head 23. The ball head 23 is then pulled out, and the metal wire separates from the clamp 3. The metal wire then passes through the guide hole 11 and leaves the clamping mechanism. At this point, the remaining parts of the clamping mechanism, except for the metal wire, remain in the body to ensure the closure of the lesion.

[0121] The primary purpose of the clamping process of the aforementioned clip 3 is to achieve clamping of the lesion. To ensure the clamping effect on the lesion, the clip 3 in this embodiment is provided with clamping teeth 36 and clamping protrusions 37. The clamping teeth 36 and clamping protrusions 37 further enhance the clamping effect of the clamping mechanism on the lesion. Simultaneously, this design also allows the clamping mechanism to possess superior clamping performance.

[0122] Based on the above description, compared with the prior art, the clamping mechanism proposed in this embodiment improves the structure of the clamp 3. A three-way integrated hole is opened at the tail of the clamp 3. The integrated hole is connected to the ball head 23 of the metal wire, thereby combining the clamping control of the clamp 3 and the disengagement control between the metal wire and the clamp 3. This can avoid the clamping operation and disengagement operation of the clamp 3 from affecting each other during the operation, reduce the complexity of the metal wire movement, and improve the ease of operation of the hemostatic clamp.

[0123] Most importantly, this disclosure, through the design of a multi-level locking mechanism, enables the clamping piece 3 to be locked at different degrees of clamping, thereby meeting the clamping requirements of different situations and possessing superior practicality and ease of operation.

[0124] Furthermore, in this technical solution, the deformation hole 31 and the connecting hole 32 are designed as an integral three-way hole, which can not only avoid the impact on the strength of the clamping piece 3 due to the opening of multiple holes, and prevent the clamping piece 3 from deforming or even being damaged during use, but also ensure that the first deformation wall 33 and the second deformation wall 34 have sufficient deformation to meet the locking action of the clamping piece 3 and the disengagement action of the metal wire from the clamping piece 3.

[0125] In addition, this integrated hole structure can greatly reduce the processing difficulty, and there is no need to pay special attention to the relative positioning relationship between the deformation hole 31 and the connecting hole 32, which can greatly reduce the precision requirements of design and manufacturing.

[0126] In addition, this technical solution does not produce foreign objects such as debris, avoiding the potential uncertainties caused by foreign objects remaining in the patient's body, and also avoiding additional foreign object removal operations during surgery.

[0127] As described above, the clamping mechanism needs to be delivered along the endoscope channel to the vicinity of the lesion. If there are clamping teeth 36 and clamping protrusions 37, the width of the end of the clamping mechanism may still be too large even when the clamp 3 is fully closed, making it inconvenient to insert into the endoscope channel. Therefore, in this embodiment, the clamping arm 35 is further designed to tilt towards the side where the clamping teeth 36 are located. In one embodiment, the clamp 3 includes a clamping arm 35. For any clamp 3, the head end of the clamping arm 35 tilts towards the side where the clamping arm 35 of the other clamp 3 is located. At this time, when the clamp 3 is fully closed, the clamping arms 35 are all tilted inward, the distance between the head ends of adjacent clamping arms 35 will be greatly reduced, and the width of the end of the clamping mechanism will be greatly reduced, thus making it easier for the clamping mechanism to be inserted into the endoscope channel. In a preferred embodiment, the tilt angle A of the clamping arm 35 is 0° to 30°. Therefore, another advantage of the clamping mechanism in this embodiment is that it can be more convenient to enter the endoscope forceps channel compared to other hemostatic clamps with interlocking structures.

[0128] Furthermore, in a further improvement, the clamping bosses 37 on the two clamping arms 35 are staggered. Compared to the situation where the clamping bosses 37 on the two clamping plates 3 directly abut each other, which would hinder closure, in this embodiment, when the clamping plates 3 are closed, the width dimension of the end of the clamping mechanism does not increase much because the clamping bosses 37 are staggered, thus making it easier for the clamping mechanism to be inserted into the endoscope channel.

[0129] In one specific embodiment, two clamping bosses 37 are provided on one side of the clamping arm 35, respectively located on both sides of the end of the clamping arm 35, forming a gap between the two clamping bosses 37. On the other side of the clamping arm 35, one clamping boss 37 is provided, and this clamping boss 37 is located at the middle position of the end of that side of the clamping arm 35. When the clamping plates 3 on both sides are closed, the clamping boss 37 on one side can precisely fit into the gap between the two clamping bosses 37 on the other side of the clamping arm 35, thereby achieving a better engagement effect and avoiding an excessive increase in the width dimension of the end of the clamping mechanism.

[0130] Because current clamping mechanisms, such as the clamping plate 3, are mostly made of stainless steel or other metals, the clamping mechanism itself may contain magnetism. This could prevent patients who have undergone endoscopic minimally invasive treatment from undergoing MRI scans for a short period of time, and could also cause them to fail security checks when traveling. Therefore, in a preferred embodiment, both the clamping plate 3 and the connecting seat 1 are made of non-magnetic elastic materials or non-magnetic absorbable materials. These include pure titanium, magnesium alloy, zinc alloy, polylactic acid, polyglycolic acid, polyglycolic acid, polyglycolic acid-trimethylene carbonate, polyetheretherketone, polyamide, polyoxymethylene, ultra-high molecular weight polyethylene, and polycarbonate. In a preferred embodiment, pure titanium or polyetheretherketone can be selected as needed. This ensures that the clamping mechanism remains in the body and is compatible with MRI scans, meaning it does not affect the patient's MRI examination or security checks.

[0131] Example 2

[0132] Referring to Figures 14 to 25, this embodiment proposes a clamping mechanism, including a connecting seat 1, a metal wire, and two clamping plates 3. The two clamping plates 3 intersect and are hinged to the connecting seat 1 at the intersection. Each clamping plate 3 includes a clamping arm 35, on which a clamping tooth 36 is fixedly disposed. A clamping boss 37 is fixedly disposed at the end of the clamping arm 35, and the clamping arm 35 is inclined towards the side where the clamping tooth 36 is located.

[0133] The tail of the clip 3 is fixedly provided with a hanging platform 30, and the two sides of the connecting seat 1 are provided with locking platforms 10. The hanging platform 30 is used to engage with the locking platform 10. The clip 3 is provided with a deformation hole 31 and a connecting through hole 32 near the hanging platform 30. The deformation hole 31 and the connecting through hole 32 are connected to form a three-way integrated hole, so that the tail of the clip 3 near the hanging platform 30 forms a first deformation wall 33 and a second deformation wall 34.

[0134] The connector 1 is provided with a guide hole 11, through which a metal wire passes. The metal wire includes a first segment 21 and a second segment 22, and a ball head 23 is fixedly provided at the end of each of the first segment 21 and the second segment 22. The diameter of the ball head 23 is larger than the through size of the connecting through hole 32, and smaller than the through size of the deformation hole 31. The first segment 21 and the second segment 22 respectively pass through the connecting through holes 32 on the two clamps 3, and the ball head 23 is located inside the deformation hole 31.

[0135] The working process of the clamping mechanism in this embodiment can be roughly divided into the clamping process of the clamping piece 3 and the disengagement process of the metal wire from the clamping piece 3. The clamping mechanism in this embodiment realizes the connection between the ball head 23 at the end of the metal wire through the deformation hole 31 and the connecting through hole 32, thereby combining the clamping control and disengagement control of the clamping piece 3.

[0136] The clamping mechanism of this embodiment is a component of the hemostatic clamp. Its connecting seat 1 needs to be connected to other parts of the hemostatic clamp, and the metal wire also needs to be connected to the traction mechanism in the hemostatic clamp. For the sake of simplicity, this embodiment will not elaborate on the other parts of the hemostatic clamp, but only to say that the metal wire will be pulled along the axial direction of the connecting seat 1 by the traction action of the traction mechanism in the hemostatic clamp.

[0137] The clamping process of the clamping piece 3 is as follows: when the metal wire is pulled or pushed, since the diameter of the ball head 23 is larger than the through size of the connecting through hole 32, the ball head 23 will not directly disengage from the connecting through hole 32, but will drive the clamping pieces 3 on both sides to rotate, thereby realizing the clamping or opening of the clamping piece 3.

[0138] When clamping and locking of clip 3 is not required, the fully closed state of clip 3 is the state in which clip 3 is exactly in contact with the locking platform 10. Maintaining this fully closed state allows the clamping mechanism to be easily inserted into the endoscope channel. Referring to Figures 30 and 31, after the clamping mechanism is advanced along the endoscope channel to the vicinity of the lesion, the traction mechanism can push or pull the wire to reopen or close clip 3, thereby clamping the lesion. After clamping the lesion, clip 3 needs to be locked.

[0139] When clamping and locking of clip 3 is required, the metal wire needs to be continuously pulled back. When the hanging platform 30 on clip 3 comes into contact with the locking platform 10, the metal wire continues to be pulled, causing the hanging platform 30 and the locking platform 10 to be squeezed. Since the deformation hole 31 and the connecting through hole 32 form a three-way integrated hole, the first deformation wall 33 and the second deformation wall 34 will deform, and the deformation hole 31 will also deform synchronously. It is understandable that the existence of the deformation hole 31 constitutes the premise for the first deformation wall 33 and the second deformation wall 34 to achieve deformation. Obviously, the diameter of the ball head 23 needs to be smaller than the passage size of the deformation hole 31 in order to provide a margin for the deformation of the first deformation wall 33 and the second deformation wall 34 and avoid the ball head 23 getting stuck in the deformation hole 31 and interfering with the deformation of the first deformation wall 33 and the second deformation wall 34. Once the mounting platform 30 passes the locking platform 10, the mounting platform 30 and the locking platform 10 no longer compress each other, and the deformation of the first deformation wall 33, the second deformation wall 34, and the deformation hole 31 is restored. At this time, the locking platform 10 can block the mounting platform 30, prevent the clamping piece 3 from opening, and thus ensure that the clamping piece 3 is in a clamped and locked state.

[0140] The process of separating the metal wire from the clamp 3 is as follows: After the hanging platform 30 passes the locking platform 10, when the clamp 3 is in a clamped and locked state, the metal wire is pulled continuously. The ball heads 23 on the first segment 21 and the second segment 22 will continue to exert force on the first deformable wall 33 and the second deformable wall 34. The first deformable wall 33 and the second deformable wall 34 will continue to deform until the through-hole 32 is larger than the diameter of the ball head 23. The ball head 23 is then pulled out, and the metal wire and the clamp 3 are separated. Subsequently, the metal wire will pass through the guide hole 11 and leave the clamping mechanism. As shown in Figure 32, the rest of the clamping mechanism, except for the metal wire, will remain in the body to ensure the clamping of the lesion.

[0141] The primary purpose of the clamping process of the aforementioned clip 3 is to achieve clamping of the lesion. To ensure the clamping effect on the lesion, the clip 3 in this embodiment is provided with clamping teeth 36 and clamping protrusions 37. The clamping teeth 36 and clamping protrusions 37 further enhance the clamping effect of the clamping mechanism on the lesion. Simultaneously, this design also allows the clamping mechanism to possess superior clamping performance.

[0142] Based on the above description, compared with the prior art, the clamping mechanism proposed in this embodiment improves the structure of the clamping piece 3. A deformation hole 31 and a connecting through hole 32 are formed as a whole at the tail of the clamping piece 3. The deformation hole 31 and the connecting through hole 32 are used to connect with the ball head 23 at the end of the metal wire. That is, through a single mating structure, the clamping control and release control of the clamping piece 3 are combined, which reduces the complexity of the movement of the metal wire, improves the operability of the hemostatic clip, and can avoid the clamping operation and release operation of the clamping piece 3 from affecting each other during the operation.

[0143] Furthermore, in this technical solution, the deformation hole 31 and the connecting through hole 32 are designed as an integral three-way hole, which can not only avoid the impact on the strength of the clamping piece 3 due to the opening of multiple holes, and prevent the clamping piece 3 from deforming or even being damaged during use, but also ensure that the first deformation wall 33 and the second deformation wall 34 have sufficient deformation to meet the locking action of the clamping piece 3 and the disengagement action of the metal wire from the clamping piece 3.

[0144] Furthermore, this integrated hole structure can greatly reduce the processing difficulty, eliminating the need to consider the relative positioning relationship between the deformation hole 31 and the connecting through hole 32, and greatly reducing the precision requirements for design and manufacturing.

[0145] Furthermore, this technical solution does not generate foreign objects such as debris, avoiding potential uncertainties caused by foreign objects remaining in the patient's body, and also avoiding additional foreign object removal procedures during surgery. It should be noted that the foreign object here refers to the foreign object generated due to the detachment of the clip 3 from the metal wire (there is no foreign object in this embodiment), but the rest of the clip assembly, except for the metal wire, will remain in the body to ensure the closure of the lesion wound. This is a necessary operation for the hemostatic clip closure method treatment.

[0146] Referring to Figure 21 and the foregoing description, the clamping mechanism needs to be delivered along the endoscope channel to the vicinity of the lesion. If there are clamping teeth 36 and clamping protrusions 37, the width of the end of the clamping mechanism may still be too large even when the clamp 3 is fully closed, making it inconvenient to insert into the endoscope channel. Therefore, in this embodiment, the clamping arm 35 is further designed to tilt towards the side where the clamping teeth 36 are located. In a further embodiment, the clamp 3 includes a clamping arm 35. For any clamp 3, the head end of the clamping arm 35 tilts towards the side where the clamping arm 35 of the other clamp 3 is located. At this time, when the clamp 3 is fully closed, the clamping arms 35 are all tilted inward, and the distance between the head ends of adjacent clamping arms 35 will be greatly reduced. Therefore, the width of the end of the clamping assembly will be greatly reduced, which makes it easier for the clamping mechanism to be inserted into the endoscope channel. Referring to Figures 15 and 21, in a preferred embodiment, the tilt angle A of the clamping arm 35 is 0° to 30°. Therefore, another advantage of the clamping mechanism in this embodiment is that it can be more convenient to enter the endoscope forceps channel compared to other hemostatic clamps with interlocking structures.

[0147] Furthermore, in a further improvement, the clamping bosses 37 on the two clamping arms 35 are staggered. Compared to the situation where the clamping bosses 37 on the two clamping plates 3 directly abut each other, which would hinder closure, in this embodiment, when the clamping plates 3 are closed, the width dimension of the end of the clamping mechanism does not increase much because the clamping bosses 37 are staggered, thus making it easier for the clamping mechanism to be inserted into the endoscope channel.

[0148] In one specific embodiment, referring to Figures 18 to 21, two clamping bosses 37 are provided on one side of the clamping arm 35, respectively located on both sides of the end of the clamping arm 35, forming a gap between the two clamping bosses 37. On the other side of the clamping arm 35, one clamping boss 37 is provided, and this clamping boss 37 is located at the middle position of the end of that side of the clamping arm 35. When the clamping plates 3 on both sides are closed, the clamping boss 37 on one side can precisely fit into the gap between the two clamping bosses 37 on the other side of the clamping arm 35, thereby achieving a better engagement effect and avoiding an excessive increase in the width dimension of the end of the clamping mechanism.

[0149] As explained above, the metal wire will eventually pass through the guide hole 11 and leave the chuck mechanism. However, due to the presence of the ball head 23, it may interfere with the inner wall of the guide hole 11, causing the metal wire to detach unsmoothly. Therefore, in an improved embodiment, the diameter of the guide hole 11 is greater than or equal to the sum of the diameters of the ball heads 23. In this case, the ball heads 23 located on the first segment 21 and the second segment 22 can pass through the guide hole 11 simultaneously, avoiding jamming.

[0150] Furthermore, in another improved embodiment, there is a length difference ΔL between the first segment 21 and the second segment 22, where ΔL is greater than or equal to the diameter of the ball head 23. Therefore, the ball heads 23 of the first segment 21 and the second segment 22 will be staggered and will not pass through the guide hole 11 simultaneously, thereby preventing the ball head 23 from getting stuck in the guide hole 11.

[0151] In the foregoing description, both the first deformable wall 33 and the second deformable wall 34 need to deform during the process of the hanging platform 30 passing over the locking platform 10 and during the process of the metal wire separating from the clamp 3. Referring to Figure 16, in order to ensure the deformation performance of the first deformable wall 33 and the second deformable wall 34, in a preferred embodiment, the distance D between the boundary of the first deformable wall 33 and the second deformable wall 34 on the side near the deformation hole 31 and the boundary on the other side is 0.3 to 1.5 mm. Obviously, the distance D represents the thickness of the first deformable wall 33 and the second deformable wall 34. The smaller the distance D between the first deformable wall 33 and the second deformable wall 34, the easier it is for deformation to occur, but correspondingly, its structural strength will also decrease; conversely, if the distance D between the first deformable wall 33 and the second deformable wall 34 is larger, its structural strength will increase, but its deformation will be more difficult to occur. Therefore, in this embodiment, the distance D is set to be within the range of 0.3 to 1.5 mm, such as 0.3 mm, 0.5 mm, 0.7 mm, 0.9 mm, 1.1 mm, 1.3 mm and 1.5 mm, etc. More preferably, the distance D should be kept between 0.9 and 1 mm.

[0152] Furthermore, current clamping mechanisms, particularly the clamping plates (3), are often made of stainless steel or other metals, which may result in the clamping mechanism itself being magnetic. This could prevent patients who have undergone endoscopic minimally invasive surgery from undergoing MRI scans for a short period and from passing security checks. Therefore, in a preferred embodiment, the clamping plates (3) and the connecting seat (1) are made of non-magnetic elastic materials or non-magnetic absorbable materials. These include pure titanium, magnesium alloys, zinc alloys, polylactic acid, polyglycolic acid, polyglycolic acid, polyglycolic acid-trimethylene carbonate, polyetheretherketone (PEEK), polyamide, polyoxymethylene (POM), ultra-high molecular weight polyethylene (UHMWPE), and polycarbonate. In a preferred embodiment, pure titanium or PEEK can be selected as needed. This ensures that the clamping mechanism remains in the body and is compatible with MRI scans, meaning it does not affect the patient's MRI examination or security checks.

[0153] Example 3

[0154] Referring to Figures 26 to 28, this embodiment proposes a clamping and releasing mechanism, including the clamping mechanism of Embodiment 1, and further including a rotating ring seat 4, a first rotating ring 5, a second rotating ring 6, and a hook 7. The rotating ring seat 4 is located on one side of the connecting seat 1, and a limiting platform 40 is fixedly provided on the rotating ring seat 4. The first rotating ring 5 is located inside the rotating ring seat 4, and both ends of the first rotating ring 5 abut against the limiting platform 40. The outer wall of the second rotating ring 6 is fixedly connected to the inner wall of the first rotating ring 5. An extension boss 60 is fixedly provided on the second rotating ring 6, and a first release hole 61 is provided on the extension boss 60. A second release hole 12 is provided on the connecting seat 1. A hanging claw 71 is fixedly provided at the end of the hook 7. The hanging claw 71 passes through the first release hole 61 and is inserted into the second release hole 12. A through hole 72 is also provided on the hook 7.

[0155] The clamping mechanism is part of the hemostatic clamp. During the surgical procedure, it is necessary to detach the clamping mechanism from the rest of the hemostatic clamp, that is, to release the clamping mechanism. As described in Example 1, the detachment of the metal wire from the clamp 3 has been explained. Therefore, this example is designed with a mechanism related to the connection and release between the clamping mechanism and the rest of the hemostatic clamp.

[0156] The clamping and releasing mechanism of this embodiment can further realize the connection and release of the clamp assembly and the rest of the hemostatic clamp in Embodiment 1. Its principle is as follows: the through hole 72 provides a channel for the metal wire to connect with the traction mechanism in the hemostatic clamp; the rotating ring seat 4 assembles the first rotating ring 5 inside it through the limiting platform 40, but still ensures that the first rotating ring 5 can rotate; the inner wall of the first rotating ring 5 and the outer wall of the second rotating ring 6 are fixedly connected by welding or bonding, or the two are integrally formed. The claw 71 on the hook 7 passes through both the first release hole 61 on the extending boss 60 and the second release hole 12 on the connecting seat 1, realizing the connection between the second rotating ring 6 and the connecting seat 1.

[0157] The release process of the clamp mechanism occurs after the metal wire separates from the clamp piece 3. After separation, the metal wire continues to move axially until it abuts against the hook 7, exerting a force on the hook 7. This force causes the claw 71 to disengage from the second release hole 12 on the connecting seat 1. Clearly, since the clamp mechanism relies solely on the cooperation of the first release hole 61 and the second release hole 12 with the claw 71 for connection, when the claw 71 disengages from the second release hole 12, the connecting seat 1 and its clamp piece 3, among other structures, can be released, thus remaining in the body to clamp the lesion. The rotating seat 4, the first rotating ring 5, the second rotating ring 6, and the hook 7 below the connecting seat 1 can all leave the body along with the rest of the hemostatic clamp.

[0158] Example 4

[0159] Referring to Figures 29 to 31, this embodiment proposes a hemostatic clip, which, combined with the clamping and releasing mechanism of Embodiment 3, further constitutes a complete hemostatic clip structure. The hemostatic clip of this embodiment also includes a handle 80, a sliding handle 81, a rotating wheel 82, a spindle 83, and a plastic-coated spring tube 88; the end of the handle 80 is provided with a finger ring 84, and the hook 7 is also provided with a through hole 72. The plastic-coated spring tube 88 is sleeved on the outside of the spindle 83, one end of the plastic-coated spring tube 88 is fixedly connected to the end of the handle 80, and the other end of the plastic-coated spring tube 88 is fixedly connected to the rotating ring seat 4. The sliding handle 81 is slidably disposed on the handle 80, one end of the spindle 83 is fixedly connected to the sliding handle 81 through a fixing tube 85, and the other end of the spindle 83 passes through the through hole 72 and is fixedly connected to a metal wire through a connecting tube 86. The rotating wheel 82 is rotatably connected to the handle 80, and a flat section is provided inside the rotating wheel 82. The spindle 83 passes through the flat section and is engaged with the flat section through a conduit 87.

[0160] This embodiment, combining embodiments 1 and 2, constitutes a complete hemostatic clip. The handle 80, plastic-coated spring tube 88, rotating seat 4, and connecting seat 1 are sequentially connected, forming the main structure of the hemostatic clip. The sliding handle 81 and spindle 83, among other related structures, constitute a traction mechanism capable of pulling a metal wire. That is, the sliding of the sliding handle 81 relative to the handle 80 drives the axial movement of the metal wire via the spindle 83, realizing the opening, closing, locking, and releasing operations of the clamp mechanism. The rotating wheel 82, through its internal flat portion cooperating with the spindle 83, transmits its rotation to the clamping plate 3, thereby controlling the rotation of the clamping plate 3. The finger ring 84 at the end of the handle 80 improves the ease of operation of the hemostatic clip, accommodating more gripping methods. The above description is illustrative of this disclosure and its embodiments; this description is not restrictive, and the figures shown are only one embodiment of this disclosure. The actual structure is not limited to this. Therefore, if a person skilled in the art is inspired by this and designs a similar structure and embodiment without departing from the spirit of this disclosure, such design should fall within the scope of protection of this disclosure.

[0161] This disclosure also includes, but is not limited to, the following technical solutions.

[0162] Technical solution A1: A clamping mechanism, characterized in that it includes a connecting seat (1), a metal wire, and two clamping plates (3);

[0163] The two clamping pieces (3) intersect and are hinged to the connecting seat (1) at the intersection. The clamping piece (3) includes a clamping arm (35), a clamping tooth (36) is fixedly provided on the clamping arm (35), and a clamping boss (37) is fixedly provided at the end of the clamping arm (35). The clamping arm (35) is inclined to the side where the clamping tooth (36) is located.

[0164] The tail of the clip (3) is provided with a deformation hole (31) and a connecting hole (32). The deformation hole (31) and the connecting hole (32) are connected to form a three-way integrated hole, so that the tail of the clip (3) forms a first deformation wall (33) and a second deformation wall (34).

[0165] The connecting seat (1) is provided with a guide hole (11), and the metal wire passes through the guide hole (11). The metal wire includes two connecting segments (20), and a ball head (23) is fixedly provided at the end of each of the two connecting segments (20). The diameter of the ball head (23) is larger than the through size of the connecting hole (32), and the diameter of the ball head (23) is smaller than the through size of the deformation hole (31). The two connecting segments (20) pass through the connecting holes (32) on the two clamps (3) respectively, and the ball head (23) is located in the deformation hole (31).

[0166] A termination lock platform (30) is fixedly provided on the clamp (3) near the connection hole (32). The termination lock platform (30) includes a stop side (301) and a non-stop side (302). Limit lock platforms (10) are provided on both sides of the connecting seat (1). The limit lock platform (10) includes a limiting side (101) and a non-limiting side (102). The non-stop side (302) is used to abut against the non-limiting side (102), and the stop side (301) is used to abut against the limiting side (101).

[0167] The clamp (3) or the connecting seat (1) is provided with a multi-level locking part, which is used to lock the clamp (3) in different positions;

[0168] When the multi-level locking part is disposed on the clip (3), the multi-level locking part is located on the side where the non-stop side (302) of the termination lock table (30) is located, and the multi-level locking part is used to abut against the limiting lock table (10);

[0169] When the multi-level locking part is disposed on the connecting seat (1), the multi-level locking part is located on the side where the non-restricted side (102) of the limiting lock table (10) is located, and the multi-level locking part is used to abut against the termination lock table (30).

[0170] Technical Solution A2: A clamping mechanism according to Technical Solution A1, characterized in that, when the multi-level locking part is disposed on the clamping piece (3), the multi-level locking part includes n sub-level locking platforms (303), the n sub-level locking platforms (303) are continuously arranged along the non-stop side (302) in a direction away from the stop side (301); the n sub-level locking platforms (303) are connected to each other, and the termination locking platform (30) is connected to the adjacent sub-level locking platform (303) to form a stop groove (304), the stop groove (304) is used to engage with the limiting locking platform (10); wherein, n≥1, and n∈N.

[0171] Technical solution A3: A clamping mechanism according to technical solution A2, characterized in that the volume of the sub-level locking platform (303) is less than or equal to the volume of the termination locking platform (30).

[0172] Technical Solution A4. A clamping mechanism according to any one of technical solutions A1-A3, characterized in that, when the multi-level locking part is disposed on the connecting seat (1), the multi-level locking part includes i sub-level limiting platforms (103), the i sub-level limiting platforms (103) are continuously arranged along the non-limiting side (102) in a direction away from the limiting side (101); the i sub-level limiting platforms (103) form a limiting groove (104) between each other and between each sub-level limiting platform (103) and the adjacent limiting locking platform (10), the limiting groove (104) is used to engage with the termination locking platform (30); wherein, i≥1, and i∈N.

[0173] Technical solution A5: A clamping mechanism according to technical solution A4, characterized in that the volume of the sub-level limiting platform (103) is less than or equal to the volume of the limiting locking platform (10).

[0174] Technical solution A6. A clamping mechanism according to any one of technical solutions A1-A5, characterized in that the tilt angle A of the clamping arm (35) is 0° to 30°.

[0175] Technical solution A7. A clamping mechanism according to any one of technical solutions A1-A6, characterized in that the clamping bosses (37) located on the two clamping arms (35) are staggered.

[0176] Technical solution A8. A clamping mechanism according to any one of technical solutions A1-A7, characterized in that the clamping piece (3) and the connecting seat (1) are made of non-magnetic elastic material or non-magnetic absorbable material.

[0177] Technical solution A9, a hemostatic clip, comprising a clamping mechanism as described in any one of technical solutions A1-A8, characterized in that it further comprises a rotating ring seat (4), a first rotating ring (5), a second rotating ring (6) and a hook (7);

[0178] The rotating seat (4) is located on one side of the connecting seat (1). A limiting platform (40) is fixedly provided on the rotating seat (4). The first rotating ring (5) is located inside the rotating seat (4), and the two ends of the first rotating ring (5) abut against the limiting platform (40) respectively.

[0179] The outer wall of the second rotating ring (6) is fixedly connected to the inner wall of the first rotating ring (5). An extension boss (60) is fixedly provided on the second rotating ring (6). A first release hole (61) is provided on the extension boss (60). A second release hole (12) is provided on the connecting seat (1). A hanging claw (71) is fixedly provided at the end of the hook (7). The hanging claw (71) passes through the first release hole (61) and is inserted into the second release hole (12).

[0180] Technical solution A10, a hemostatic clip according to technical solution A9, characterized in that it further includes a handle (80), a sliding handle (81), a rotating wheel (82), a spindle (83) and a plastic-coated spring tube (88); the end of the handle (80) is provided with a finger ring (84), and the hook (7) is provided with a through hole (72);

[0181] The plastic-coated spring tube (88) is sleeved on the outside of the mandrel (83). One end of the plastic-coated spring tube (88) is fixedly connected to the end of the handle (80), and the other end of the plastic-coated spring tube (88) is fixedly connected to the rotating seat (4). The sliding handle (81) is slidably disposed on the handle (80). One end of the mandrel (83) is fixedly connected to the sliding handle (81) through the fixing tube (85), and the other end of the mandrel (83) passes through the through hole (72) and is fixedly connected to the metal wire through the connecting tube (86).

[0182] The rotating wheel (82) is rotatably connected to the handle (80). A flat part is provided inside the rotating wheel (82). The spindle (83) passes through the flat part and is engaged with the flat part through a conduit (87).

[0183] In addition, this disclosure also includes, but is not limited to, the following technical solutions.

[0184] Technical solution B1: A clamping mechanism, characterized in that it includes a connecting seat (1), a metal wire, and two clamping plates (3);

[0185] The two clamping pieces (3) intersect and are hinged to the connecting seat (1) at the intersection. The clamping piece (3) includes a clamping arm (35), a clamping tooth (36) is fixedly provided on the clamping arm (35), and a clamping boss (37) is fixedly provided at the end of the clamping arm (35). The clamping arm (35) is inclined to the side where the clamping tooth (36) is located.

[0186] The tail of the clip (3) is fixedly provided with a hanging platform (30), and the two sides of the connecting seat (1) are provided with locking platforms (10). The hanging platform (30) is used to engage with the locking platform (10). The clip (3) is provided with a deformation hole (31) and a connecting through hole (32) near the hanging platform (30). The deformation hole (31) and the connecting through hole (32) are connected to form a three-way integrated hole, so that the tail of the clip (3) near the hanging platform (30) forms a first deformation wall (33) and a second deformation wall (34).

[0187] The connecting seat (1) is provided with a guide hole (11), and the metal wire passes through the guide hole (11). The metal wire includes a first segment (21) and a second segment (22). The ends of the first segment (21) and the second segment (22) are both fixedly provided with ball heads (23). The diameter of the ball head (23) is larger than the through size of the connecting through hole (32), and the diameter of the ball head (23) is smaller than the through size of the deformation hole (31). The first segment (21) and the second segment (22) respectively pass through the connecting through holes (32) on the two clamps (3), and the ball head (23) is located in the deformation hole (31).

[0188] Technical solution B2, a clamping mechanism according to technical solution B1, characterized in that the tilt angle A of the clamping arm (35) is 0° to 30°.

[0189] Technical solution B3, a clamping mechanism according to technical solution B1 or B2, characterized in that the clamping bosses (37) located on the two clamping arms (35) are staggered.

[0190] Technical solution B4, a chuck mechanism according to any one of technical solutions B1-B3, characterized in that the diameter of the guide hole (11) is greater than or equal to the sum of the diameters of the ball head (23).

[0191] Technical solution B5, a clamping mechanism according to any one of technical solutions B1-B4, characterized in that there is a length difference ΔL between the first segment (21) and the second segment (22), wherein ΔL is greater than or equal to the diameter of the ball head (23).

[0192] Technical solution B6. A chuck mechanism according to any one of technical solutions B1-B5, characterized in that the first deformable wall (33) and the second deformable wall (34) are located at the boundary of the side near the deformable hole (31), and the distance D between them and the boundary of the other side is 0.3 to 1.5 mm.

[0193] Technical solution B7. A clamping mechanism according to any one of technical solutions B1-B6, characterized in that the clamping piece (3) and the connecting seat (1) are made of non-magnetic elastic material or non-magnetic absorbable material.

[0194] Technical solution B8, a hemostatic clip, comprising a clamping mechanism as described in any one of technical solutions B1-B7, characterized in that it further comprises a rotating ring seat (4), a first rotating ring (5), a second rotating ring (6) and a hook (7);

[0195] The rotating seat (4) is located on one side of the connecting seat (1). A limiting platform (40) is fixedly provided on the rotating seat (4). The first rotating ring (5) is located inside the rotating seat (4), and the two ends of the first rotating ring (5) abut against the limiting platform (40) respectively.

[0196] The outer wall of the second rotating ring (6) is fixedly connected to the inner wall of the first rotating ring (5). An extension boss (60) is fixedly provided on the second rotating ring (6). A first release hole (61) is provided on the extension boss (60). A second release hole (12) is provided on the connecting seat (1). A hanging claw (71) is fixedly provided at the end of the hook (7). The hanging claw (71) passes through the first release hole (61) and is inserted into the second release hole (12).

[0197] Technical solution B9. A hemostatic clip according to technical solution B8, characterized in that it further includes a handle (80), a sliding handle (81), a rotating wheel (82), a spindle (83) and a plastic-coated spring tube (88); the end of the handle (80) is provided with a finger ring (84), and the hook (7) is provided with a through hole (72);

[0198] The plastic-coated spring tube (88) is sleeved on the outside of the mandrel (83). One end of the plastic-coated spring tube (88) is fixedly connected to the end of the handle (80), and the other end of the plastic-coated spring tube (88) is fixedly connected to the rotating seat (4). The sliding handle (81) is slidably disposed on the handle (80). One end of the mandrel (83) is fixedly connected to the sliding handle (81) through the fixing tube (85), and the other end of the mandrel (83) passes through the through hole (72) and is fixedly connected to the metal wire through the connecting tube (86).

[0199] The rotating wheel (82) is rotatably connected to the handle (80). A flat part is provided inside the rotating wheel (82). The spindle (83) passes through the flat part and is engaged with the flat part through a conduit (87).

[0200] In addition, this disclosure also includes, but is not limited to, the following technical solutions.

[0201] Technical solution C1, a clamp assembly, characterized in that it includes a connecting seat (1), a metal wire and two clamping pieces (3);

[0202] The two clamping pieces (3) intersect and are hinged to the connecting seat (1). The tail of the clamping piece (3) is provided with a deformation hole (31) and a connecting hole (32). The deformation hole (31) and the connecting hole (32) are connected to form a three-way integral hole, so that the tail of the clamping piece (3) forms a first deformation wall (33) and a second deformation wall (34).

[0203] The connecting seat (1) is provided with a guide hole (11), the metal wire passes through the guide hole (11), the metal wire includes two connecting segments (20), the ends of the two connecting segments (20) are fixedly provided with ball heads (23), the through size of the connecting hole (32) is smaller than the diameter of the ball head (23), the two connecting segments (20) respectively pass through the connecting holes (32) on the two clamps (3), and the ball head (23) is located in the deformation hole (31);

[0204] A termination lock platform (30) is fixedly provided on the clamp (3) near the connection hole (32). The termination lock platform (30) includes a stop side (301) and a non-stop side (302). Limit lock platforms (10) are provided on both sides of the connecting seat (1). The limit lock platform (10) includes a limiting side (101) and a non-limiting side (102). The non-stop side (302) is used to abut against the non-limiting side (102), and the stop side (301) is used to abut against the limiting side (101).

[0205] The clamp (3) or the connecting seat (1) is provided with a multi-level locking part, which is used to lock the clamp (3) in different positions;

[0206] When the multi-level locking part is disposed on the clip (3), the multi-level locking part is located on the side where the non-stop side (302) of the termination lock table (30) is located, and the multi-level locking part is used to abut against the limiting lock table (10);

[0207] When the multi-level locking part is disposed on the connecting seat (1), the multi-level locking part is located on the side where the non-restricted side (102) of the limiting lock table (10) is located, and the multi-level locking part is used to abut against the termination lock table (30).

[0208] Technical solution C2. A clamp assembly according to technical solution C1, characterized in that, when the multi-level locking part is disposed on the clamp piece (3), the multi-level locking part includes n sub-level locking platforms (303), the n sub-level locking platforms (303) are continuously arranged along the non-stop side (302) in a direction away from the stop side (301); the n sub-level locking platforms (303) are connected to each other, and the termination locking platform (30) is connected to the adjacent sub-level locking platform (303) to form a stop groove (304), the stop groove (304) is used to engage with the limiting locking platform (10); wherein, n≥1, and n∈N.

[0209] Technical solution C3, a clamp assembly according to technical solution C2, characterized in that the volume of the sub-level locking platform (303) is less than or equal to the volume of the termination locking platform (30).

[0210] Technical solution C4. A clamp assembly according to any one of technical solutions C1-C3, characterized in that, when the multi-level locking part is disposed on the connecting seat (1), the multi-level locking part includes i sub-level limiting platforms (103), the i sub-level limiting platforms (103) are continuously arranged along the non-limiting side (102) in a direction away from the limiting side (101); the i sub-level limiting platforms (103) form a limiting groove (104) between each other and between each sub-level limiting platform (103) and the adjacent limiting locking platform (10), the limiting groove (104) is used to engage with the termination locking platform (30); wherein, i≥1, and i∈N.

[0211] Technical solution C5: A clamp assembly according to technical solution C4, characterized in that the volume of the sub-level limiting stage (103) is less than or equal to the volume of the limiting lock stage (10).

[0212] Technical solution C6. A clamp assembly according to any one of technical solutions C1-C5, characterized in that the clamping piece (3) includes a clamping arm (35), and for any clamping piece (3), the head end of the clamping arm (35) is inclined toward the side where the clamping arm (35) is located on the other clamping piece (3).

[0213] Technical solution C7, a clamp assembly according to technical solution C6, characterized in that the tilt angle A of the clamp arm (35) is 0° to 30°.

[0214] Technical solution C8. A clamp assembly according to any one of technical solutions C1-C7, characterized in that the clamp (3) and the connecting seat (1) are made of non-magnetic elastic material or non-magnetic absorbable material.

[0215] Technical solution C9, a clamping and releasing mechanism, comprising the clamping assembly described in any one of technical solutions C1-C8, characterized in that it further comprises a rotating ring seat (4), a first rotating ring (5), a second rotating ring (6) and a hook (7);

[0216] The rotating seat (4) is located on one side of the connecting seat (1). A limiting platform (40) is fixedly provided on the rotating seat (4). The first rotating ring (5) is located inside the rotating seat (4), and the two ends of the first rotating ring (5) abut against the limiting platform (40) respectively.

[0217] The outer wall of the second rotating ring (6) is fixedly connected to the inner wall of the first rotating ring (5). An extension boss (60) is fixedly provided on the second rotating ring (6). A first release hole (61) is provided on the extension boss (60). A second release hole (12) is provided on the connecting seat (1). A hanging claw (71) is fixedly provided at the end of the hook (7). The hanging claw (71) passes through the first release hole (61) and is inserted into the second release hole (12). A through hole (72) is also provided on the hook (7).

[0218] Technical solution C10, a hemostatic clip, including the clamping and releasing mechanism described in technical solution C9, characterized in that it further includes a handle (80), a sliding handle (81), a rotating wheel (82), a plastic-coated spring tube (88), and a spindle (83); the end of the handle (80) is provided with a finger ring (84);

[0219] The plastic-coated spring tube (88) is sleeved on the outside of the mandrel (83). One end of the plastic-coated spring tube (88) is fixedly connected to the end of the handle (80), and the other end of the plastic-coated spring tube (88) is fixedly connected to the rotating seat (4). The sliding handle (81) is slidably disposed on the handle (80). One end of the mandrel (83) is fixedly connected to the sliding handle (81) through the fixing tube (85), and the other end of the mandrel (83) passes through the through hole (72) and is fixedly connected to the metal wire through the connecting tube (86).

[0220] The rotating wheel (82) is rotatably connected to the handle (80). A flat part is provided inside the rotating wheel (82). The spindle (83) passes through the flat part and is engaged with the flat part through a conduit (87).

[0221] In addition, this disclosure also includes, but is not limited to, the following technical solutions.

[0222] Technical solution D1, a clamp assembly, characterized in that it includes a connecting seat (1), a metal wire and two clamping pieces (3);

[0223] The two clamping pieces (3) intersect and are hinged to the connecting seat (1). A hanging platform (30) is fixedly provided at the tail of the clamping piece (3). Locking platforms (10) are provided on both sides of the connecting seat (1). The hanging platform (30) is used to engage with the locking platform (10). A deformation hole (31) and a connecting through hole (32) are provided near the hanging platform (30). The deformation hole (31) and the connecting through hole (32) are connected to form a three-way integrated hole, so that the tail of the clamping piece (3) forms a first deformation wall (33) and a second deformation wall (34).

[0224] The connecting seat (1) is provided with a guide hole (11), and the metal wire passes through the guide hole (11). The metal wire includes a first segment (21) and a second segment (22). The ends of the first segment (21) and the second segment (22) are fixedly provided with ball heads (23). The through size of the connecting through hole (32) is smaller than the diameter of the ball head (23). The first segment (21) and the second segment (22) pass through the connecting through holes (32) on the two clamps (3) respectively. The ball head (23) is located in the deformation hole (31).

[0225] Technical solution D2: A clamp assembly according to technical solution D1, characterized in that the clamping piece (3) includes a clamping arm (35), and for any clamping piece (3), the head end of the clamping arm (35) is inclined toward the side where the clamping arm (35) is located on the other clamping piece (3).

[0226] Technical solution D3, a clamp assembly according to technical solution D2, characterized in that the tilt angle A of the clamp arm (35) is 0° to 30°.

[0227] Technical solution D4, a chuck assembly according to any one of technical solutions D1-D3, characterized in that the diameter of the guide hole (11) is greater than or equal to the sum of the diameters of the ball head (23).

[0228] Technical solution D5, a clamp assembly according to any one of technical solutions D1-D4, characterized in that the clamp (3) and the connecting seat (1) are made of non-magnetic elastic material or non-magnetic absorbable material.

[0229] Technical solution D6, a clamping and releasing mechanism, comprising a clamping assembly as described in any one of technical solutions D1-D5, characterized in that it further comprises a rotating ring seat (4), a first rotating ring (5), a second rotating ring (6) and a hook (7);

[0230] The rotating seat (4) is located on one side of the connecting seat (1). A limiting platform (40) is fixedly provided on the rotating seat (4). The first rotating ring (5) is located inside the rotating seat (4), and the two ends of the first rotating ring (5) abut against the limiting platform (40) respectively.

[0231] The outer wall of the second rotating ring (6) is fixedly connected to the inner wall of the first rotating ring (5). An extension boss (60) is fixedly provided on the second rotating ring (6). A first release hole (61) is provided on the extension boss (60). A second release hole (12) is provided on the connecting seat (1). A hanging claw (71) is fixedly provided at the end of the hook (7). The hanging claw (71) passes through the first release hole (61) and is inserted into the second release hole (12). A through hole (72) is also provided on the hook (7).

[0232] Technical solution D7, a hemostatic clip, including the clamping and releasing mechanism described in technical solution D6, characterized in that it further includes a handle (80), a sliding handle (81), a rotating wheel (82), a plastic-coated spring tube (88) and a spindle (83); the end of the handle (80) is provided with a finger ring (84);

[0233] The plastic-coated spring tube (88) is sleeved on the outside of the mandrel (83). One end of the plastic-coated spring tube (88) is fixedly connected to the end of the handle (80), and the other end of the plastic-coated spring tube (88) is fixedly connected to the rotating seat (4). The sliding handle (81) is slidably disposed on the handle (80). One end of the mandrel (83) is fixedly connected to the sliding handle (81) through the fixing tube (85), and the other end of the mandrel (83) passes through the through hole (72) and is fixedly connected to the metal wire through the connecting tube (86).

[0234] The rotating wheel (82) is rotatably connected to the handle (80). A flat part is provided inside the rotating wheel (82). The spindle (83) passes through the flat part and is engaged with the flat part through a conduit (87).

Claims

1. A chuck mechanism, comprising: Clip (3); and Connector (1), The clamp (3) or the connecting seat (1) is provided with a multi-level locking part, which is used to lock the clamp (3) in different positions.

2. The chuck mechanism according to claim 1, wherein, The clamp (3) is provided with a stop lock platform (30), the stop lock platform (30) includes a stop side (301) and a non-stop side (302), and The connecting seat (1) is provided with a limit locking platform (10), which includes a limiting side (101) and a non-limiting side (102).

3. The chuck mechanism according to claim 2, wherein, When the multi-level locking part is disposed on the clamp (3), the multi-level locking part is located on the non-stop side (302) of the termination locking platform (30), and the multi-level locking part is used to abut against the limiting locking platform (10).

4. The chuck mechanism according to claim 2, wherein, The multi-level locking unit includes n sub-level locking units (303), where n is an integer greater than or equal to 1. The n sub-level locking platforms (303) are continuously arranged along the non-stop side (302) in a direction away from the stop side (301), and A stop groove (304) is provided between the n sub-level locking platforms (303) and between the termination locking platform (30) and the adjacent sub-level locking platform (303), the stop groove (304) being used to engage with the limiting locking platform (10).

5. The chuck mechanism according to claim 4, wherein, The volume of the sub-level locking platform (303) is less than or equal to the volume of the termination locking platform (30).

6. The chuck mechanism according to claim 2, wherein, When the multi-level locking part is disposed on the connecting seat (1), the multi-level locking part is located on the non-restricted side (102) of the limiting lock table (10), and the multi-level locking part is used to abut against the termination lock table (30).

7. The chuck mechanism according to claim 6, wherein, The multi-level locking unit includes i sub-level limiting stations (103), where i is an integer greater than or equal to 1. The i-th sub-level limiting platforms (103) are continuously arranged along the unrestricted side (102) in a direction away from the limiting side (101), and Limiting grooves (104) are provided between the i-th sub-level limiting platforms (103) and between the limiting locking platform (10) and the adjacent sub-level limiting platform (103), the limiting grooves (104) being used to engage with the termination locking platform (30).

8. The chuck mechanism according to claim 7, wherein, The volume of the sub-level limiting stage (103) is less than or equal to the volume of the limiting lock stage (10).

9. The chuck mechanism according to any one of claims 1 to 8, wherein, The clip (3) and / or the connector (1) are made of non-magnetic elastic material or non-magnetic absorbable material.

10. A clamping release mechanism, comprising a clamping mechanism according to any one of claims 1 to 9.

11. The clamping and releasing mechanism according to claim 10, further comprising: A rotating ring seat (4) is fixedly provided with a limiting stage (40); The first rotating ring (5) is located inside the rotating ring seat (4), and the two ends of the first rotating ring (5) abut against the limiting platform (40) respectively; The second rotating ring (6) has its outer wall fixedly connected to the inner wall of the first rotating ring (5), and an extension boss (60) is fixedly provided on the second rotating ring (6). as well as A hook (7) is provided with a claw (71) fixedly at its end. The extension boss (60) is provided with a first release hole (61), the connecting seat (1) is provided with a second release hole (12), and the claw (71) passes through the first release hole (61) and is inserted into the second release hole (12).

12. A hemostatic clip, comprising the clamping and releasing mechanism according to claim 11.

13. The hemostatic clip according to claim 12, further comprising: A handle (80), the end of which is provided with a finger ring (84); A sliding handle (81) is slidably mounted on the handle (80); A rotating wheel (82) is rotatably connected to the handle (80); A mandrel (83), one end of which is fixedly connected to the sliding handle (81) via a fixing tube (85), and the other end passing through a through hole (72) on the hook (7) and fixedly connected to the metal wire in the chuck mechanism via a connecting tube (86); and A spring tube (88) is sleeved on the outside of the spindle (83). One end of the spring tube (88) is fixedly connected to the end of the handle (80), and the other end is fixedly connected to the swivel seat (4). The rotating wheel (82) has a flat section inside, and the spindle (83) passes through the flat section and is engaged with the flat section through a conduit (87).

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