Disassembling and assembling structure and clamp device capable of being loaded repeatedly

Abstract

The invention discloses a dismounting and mounting structure and a repeatable loading clamp device, and belongs to the technical field of medical instruments. The dismounting and mounting structure comprises a clamp seat and a conveying seat which are detachably connected; the conveying seat is connected with a sheath tube of the conveying device, a moving channel is arranged in the conveying seat, an inner core is arranged in the moving channel, the near end of the inner core is connected with an inhaul cable, and a connecting plug is arranged at the far end of the inner core and comprises an expansion section and a necking section; a mounting channel is formed in the clamp seat, a connecting pull piece is arranged in the mounting channel, the far end of the connecting pull piece is connected with the hemostatic clamping piece, an insertion opening is formed in the near end of the connecting pull piece, a mounting area, a limiting area and a releasing area are arranged in the mounting channel, the mounting area and the releasing area allow the insertion opening to be opened in the radial direction for the expansion section to pass through, and the limiting area is used for limiting the insertion opening; the repeatable loading clip device comprises a hemostatic clip piece, a conveying device and a disassembly and assembly structure. In different positions, the clamp can be quickly mounted and released, and the hemostatic clamping piece can reliably clamp and close tissues with larger wounds, harder tissues and scabbed tissues.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, and in particular to a disassembly and assembly structure and a reloadable clamp device. Background Technology

[0002] In many surgeries, such as gastrointestinal and respiratory surgeries, hemostatic clips are required to control bleeding. Clip devices are common surgical instruments, typically consisting of a hemostatic clip and a delivery device. The delivery device inserts the hemostatic clip (composed of clip plates and clip base) into the body, where it clamps the blood vessel or tissue to achieve hemostasis.

[0003] Existing clamp devices are divided into integrated and separate structures. The integrated structure means the clamp assembly and delivery device are a single unit for single use. While this design is simple and convenient, in practical use, the cost is high because both the clamp assembly and delivery device are disposable, hindering large-scale product deployment. The separate structure consists of two parts: the delivery seat of the delivery device and the clamp seat of the clamp assembly are detachably connected. The cable of the delivery device connects to the insertion interface of the hemostatic clamp via a connector. In use, guided by the endoscopic forceps channel, the delivery device inserts the clamp assembly into the patient's digestive tract, positioning it at the predetermined surgical location. Pulling the connector with the cable moves the hemostatic clamp backward to close it, thus completing the tissue clamping operation. Afterward, the connector is removed from the insertion interface, and the delivery seat is detached from the clamp seat.

[0004] In practice, it has been found that when applying a hemostatic clip to the human body, it may encounter large wounds, scabs, or hard tissues, where the resistance is too great to continue the action. If the operator does not notice the abnormality of the hemostatic clip in time and continues to apply a large force to the hemostatic clip through the cable, the connector may disengage from the connector before the hemostatic clip is fully locked, resulting in the failure of the clamping action.

[0005] For example, existing technology (CN109640841B) discloses a detachable extended end of a cable that is inserted into a yoke in a clamping assembly. During assembly, the clamping assembly is placed in a box to fix the position of the clamping clip, facilitating the insertion of the extended end of the cable into the open end of the yoke. During tissue clamping, the clamping arm connected to the yoke completes the opening or closing action when the extended end moves axially. When the hemostatic clip needs to be locked after tissue clamping, the extended end is pulled proximally, at which point the yoke drives the clamping arm to lock the clamping arm. During surgery, it was found that, in order to meet the requirement that the extended end can be relatively easily assembled into the yoke during assembly, the existing reassembleable structure has a technical problem: the extended end of the cable is very easy to detach from the yoke during the clamping arm locking process, thus failing to complete the effective clamping action of the hemostatic clip. Summary of the Invention

[0006] The purpose of this invention is to solve the above-mentioned technical problems and provide a disassembly and assembly structure and a reloadable clamp device. Within the installation channel, an installation area, a restriction area, and a release area are provided for the connector of the connecting puller. During the process of switching the hemostatic clip from a closed state to a locked state, the connector enters the restriction area. Under the radial limiting constraint of the restriction area, the connector cannot open radially, thus preventing the connector from detaching from the connector even when a large force is applied. This ensures that the hemostatic clip can pass the locking position and switch from a closed state to a locked state, thereby ensuring that it can clamp larger wounds, harder tissues, and scab-covered tissues.

[0007] To achieve the above objectives, the present invention provides the following solution: The present invention discloses a disassembly and assembly structure, including a detachably connected clamp seat and a conveyor seat; The clip holder is provided with an installation channel, and the distal end of the installation channel is used for the movable installation of the hemostatic clip; The conveying seat is used to connect to the sheath of the conveying device; Also includes: A movable channel is provided within the conveyor seat, and a movable inner core is provided within the movable channel. The proximal end of the inner core is used to connect with the cable inside the sheath, and the distal end of the inner core is provided with a connector, which includes an enlarged section and a constricted section arranged sequentially from the distal end to the proximal end. The installation channel includes a connecting pull member, the distal end of which is used to connect with the hemostatic clip, and the proximal end of which is provided with a radially opening insertion interface. The installation channel is provided with an installation area, a restriction area, and a release area from the distal end to the proximal end. Both the installation area and the release area allow the insertion interface to open radially to allow the enlarged section of the insertion connector to pass through. The restriction area is used to radially constrain the insertion interface to clamp the constricted section. During the process of switching from a closed state to a locked state, the insertion interface of the hemostatic clip is located within the restricted area.

[0008] Preferably, the installation channel is provided with a locking position, and the hemostatic clip can switch from a closed state to a locked state as it moves from the distal end to the proximal end of the installation channel past the locking position. On the movement path of the hemostatic clip after passing the locking position, the insertion interface can be located at least within the release area.

[0009] Preferably, the connecting member is an elastic member that can expand radially at its proximal end.

[0010] Preferably, the connecting member includes two symmetrical U-shaped members spaced apart. Each U-shaped member includes a proximal web and two arms extending from the web to the distal end. The distal ends of the corresponding arms of the two U-shaped members are connected as a whole by a connecting piece. The connecting piece is connected to the hemostatic clip by a movable pivot. The movable pivot is slidably connected within the installation channel. The space formed by the two U-shaped members can accommodate and constrain the enlarged section of the connector.

[0011] Preferably, the webs of the two U-shaped members are provided with corresponding snap-fit ​​grooves on their opposite surfaces, and the snap-fit ​​grooves of the two U-shaped members form the insertion interface, which can restrict and constrain the necked section of the insertion connector.

[0012] Preferably, the outer surfaces of the webs of the two U-shaped members are provided with corresponding lugs, and the lugs correspond to the positions of the snap-fit ​​grooves. Here, the outer surface refers to the side of the web facing the inner wall of the clip seat.

[0013] Preferably, the proximal end of the hemostatic clip and the connecting piece are hinged by a movable pivot, the first circular hole and the second circular hole are hinged by a movable pivot, and the movable pivot is slidably connected within the mounting channel.

[0014] Preferably, the installation channel includes a first stepped channel and a second stepped channel arranged sequentially from the distal end to the proximal end. The diameter of the second stepped channel is larger than that of the first stepped channel. The distal end of the first stepped channel is provided with a movement groove for the hemostatic clip to expand outward, and the proximal end of the first stepped channel is provided with a through hole for the lug to extend outward. When the connector is within the installation area, the lug can extend outward to the through hole; When the insertion interface is within the release area, the second stepped channel can provide release space for the outward expansion of the lug; When the connector is within the restricted area, the first stepped channel can radially constrain the connector to prevent the connector from detaching from the connector.

[0015] Preferably, either the hemostatic clip or the connecting piece has a strip-shaped hole, and the other has a circular hole. The strip-shaped hole extends along the axial direction of the mounting channel, and the strip-shaped hole and the circular hole are connected by a movable pivot, which is slidably connected within the mounting channel. When the hemostatic clip is in the open state, the movable pivot moves relative to the proximal end of the strip hole, and the lug is located in the installation area; When the hemostatic clip is in the locked state, the movable pivot moves relative to the distal end of the strip hole, and the lug is located in the release area.

[0016] Preferably, the installation channel includes a first stepped channel and a second stepped channel arranged sequentially from the distal end to the proximal end, the diameter of the second stepped channel is larger than that of the first stepped channel, and the distal end of the first stepped channel is provided with a movement groove for the hemostatic clip to expand outward; When the connector is within the installation area, the lug can extend outward to the position of the movement groove; When the insertion interface is within the release area, the second stepped channel can provide release space for the outward expansion of the lug; When the connector is within the restricted area, the first stepped channel can radially constrain the connector to prevent the connector from detaching from the connector.

[0017] Preferably, the first stepped channel is provided with a first sliding groove for the U-shaped component to slide and connect, and the first sliding groove is provided with a second sliding groove for the movable pivot to slide and connect.

[0018] Preferably, the enlarged section of the connector is a conical head, the small-diameter end of the conical head extends distally, and the diameter of the large-diameter end of the conical head is larger than that of the constricted section.

[0019] Preferably, the near end of the installation channel is provided with a locking groove, the far end of the conveying seat can extend into the installation channel, the moving channel is provided with an extension opening, the extension opening can correspond to the locking groove during the process of the conveying seat extending into the installation channel, the moving channel is provided with an elastic clip that can be lifted by the inner core, and the far end of the elastic clip is provided with an outward bend that can extend out of the extension opening after being lifted.

[0020] Preferably, the conveying seat is provided with a limiting protrusion, which is used to fit against the proximal end of the clamp seat when the protrusion corresponds to the locking groove.

[0021] Preferably, the inner core has a plug hole at its proximal end for inserting the cable.

[0022] The present invention also discloses a reloadable clamp device, including a hemostatic clamp, a delivery device, and the above-mentioned disassembly and assembly structure. The hemostatic clamp is installed on the mounting channel of the clamp seat of the disassembly and assembly structure. The sheath of the delivery device is connected to the proximal end of the delivery seat of the disassembly and assembly structure, and the cable of the delivery device is connected to the proximal end of the inner core of the delivery seat.

[0023] Preferably, the hemostatic clip includes two clamping arms, the proximal ends of the two clamping arms are hinged to each other, the clamping arms are provided with a moving groove, a fixed pivot is fixedly connected in the installation channel, the moving groove is slidably connected to the fixed pivot, the moving groove is provided with an anti-dislodgement protrusion, the anti-dislodgement protrusion is close to the distal end of the moving groove; when the fixed pivot moves back and forth between the proximal end of the moving groove and the anti-dislodgement protrusion, the hemostatic clip completes the opening or closing action; when the fixed pivot overcomes the locking force generated by the clamping of the anti-dislodgement protrusion and slides relative to the distal end of the moving groove, the hemostatic clip switches from the closed state to the locked state.

[0024] Preferably, the motion groove includes a first groove segment and a second groove segment arranged sequentially from the distal end to the proximal end, with an included angle between the first groove segment and the second groove segment, and the anti-detachment protrusion is located at the inflection point of the first groove segment and the second groove segment.

[0025] The present invention achieves the following technical effects compared to the prior art: In this invention, the connector for the connecting puller is provided with an installation area, a restriction area, and a release area in the installation channel of the clip base, arranged sequentially from far to near. When the connector needs to be inserted into the connector, the connecting puller is moved to the installation area, which allows the connector to open radially, thus facilitating easy insertion. When the hemostatic clip needs to be closed and locked, the connector is pulled back. During the transition from the closed state to the locked state, the connector remains within the restriction area. Under the constraint of the restriction area, the connector cannot open, and even with a large force, the connector will not detach from the connector, ensuring that the hemostatic clip can be closed and locked. This ensures that it can clamp larger wounds, harder tissues, and scabs, preventing the hemostatic clip from failing to clamp or breaking off.

[0026] As can be seen, the disassembly and assembly structure of the hemostatic clip device and the hemostatic clip device with the disassembly and assembly structure in this invention effectively solve the dual requirements of existing reusable hemostatic clips: both to meet the requirements of rapid and easy insertion and removal of the connector during assembly and release, and to meet the requirement of reliable connection between the connector and the connecting pull when the clip arm is locked. Through the design of this invention, the wear of the connector interface on the distal connector of the cable is effectively reduced during repeated assembly, ensuring the effectiveness and reliability of the connector's control over the hemostatic clip in each use. At the same time, it greatly reduces the probability of undesirable connector dislodgement during the locking process, which could lead to hemostatic clip closure failure, thus increasing surgical risk and improving surgical efficiency and safety. Attached Figure Description

[0027] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained by analyzing these drawings without creative effort.

[0028] Figure 1 This is a schematic diagram of the overall structure of the reusable clamp device in Embodiments 1, 2, 3 or 4 of the present invention; Figure 2 This is a schematic diagram of the disassembly and assembly structure in the reusable clamp device of Embodiments 1, 2, 3 or 4 of the present invention; Figure 3 This is a structural schematic diagram of the disassembly and assembly structure in the reusable clamp device of Embodiments 1, 2, 3 or 4 of the present invention from another perspective; Figure 4 This is a schematic diagram of the internal structure of the disassembly and assembly structure in Embodiment 1 or 3 of the present invention; Figure 5 This is a schematic diagram of the mating structure of the hemostatic clip, connecting puller, and inner core in Embodiment 1 or 3 of the present invention; Figure 6 This is a schematic diagram of the connecting pull member in Embodiment 1 or 3 of the present invention; Figure 7 This is a schematic diagram of the structure of the connector of the inner core in one of the embodiments of Example 1 or 3 of the present invention; Figure 8 This is a schematic diagram showing the connection relationship between the delivery seat, sheath, and cable in Embodiment 1 or 3 of the present invention; Figure 9 This is a cross-sectional view of the conveyor seat in Embodiment 1 or 3 of the present invention; Figure 10 This is a structural schematic diagram of the insertion process of the connector and connecting puller in Embodiment 1 or 3 of the present invention; Figure 11 This is a schematic diagram of the opening process of the hemostatic clip in Embodiment 1 or 3 of the present invention; Figure 12 This is a schematic diagram of the hemostatic clip locking closure process in Embodiment 1 or 3 of the present invention; Figure 13 This is a schematic diagram of the structure of the connecting puller and the plug when they reach the release area (the hemostatic clip reaches the locking state) in Embodiment 1 or 3 of the present invention; Figure 14 This is a schematic diagram of the structure when the connector is detached from the connecting pull member in Embodiment 1 or 3 of the present invention; Figure 15This is a schematic diagram of the structure of the conveyor seat and clamp seat before they are separated in Embodiment 1 or 3 of the present invention; Figure 16 This is a schematic diagram of the structure during the disengagement process of the conveyor seat and the clamp seat in Embodiment 1 or 3 of the present invention; Figure 17 This is a schematic diagram of the structure after the conveyor seat and clamp seat are detached in Embodiment 1 or 3 of the present invention; Figure 18 This is a schematic diagram of the internal structure of the clip holder in Embodiment 1 or 3 of the present invention; Figure 19 This is a schematic diagram of the internal structure of the disassembly and assembly structure after the through hole is moved forward (the restricted area grows) in Embodiment 1 of the present invention; Figure 20 This is a schematic diagram of the internal structure of the disassembly and assembly structure in Embodiment 2 or 4 of the present invention; Figure 21 This is a structural schematic diagram of the insertion process of the connector and connecting puller in Embodiment 2 or 4 of the present invention; Figure 22 This is a schematic diagram of the structure of the connecting member when the hemostatic clip is pulled back before closure in Embodiment 2 or 4 of the present invention; Figure 23 This is a schematic diagram of the hemostatic clip locking closure process in Embodiment 3 or 4 of the present invention; Figure 24 This is a schematic diagram of the structure after the hemostatic clip is locked and closed in Embodiment 3 or 4 of the present invention; Figure 25 This is a schematic diagram showing the positional relationship between the motion groove and the anti-detachment protrusion in Embodiment 3 or 4 of the present invention.

[0029] Explanation of reference numerals in the attached figures: 1. Clip base; 11. Connecting pull piece; 12. Moving pivot; 13. First step channel; 14. Second step channel; 15. Moving groove; 16. Locking groove; 17. First slide groove; 18. Second slide groove; 111. U-shaped piece; 112. Connecting piece; 113. Lug; 114. Snap-fit ​​groove; 115. Strip hole; 131. Through hole; 2. Conveyor seat; 21. Moving channel; 22. Inner core; 23. Plug connector; 24. Elastic clip; 25. Limiting protrusion; 211. Protrusion opening; 222. Plug hole; 223. Fixing hole; 231. Expanding section; 232. Necked section; 241. Outer bend; 3. Hemostatic clip; 31. Movement groove; 32. Fixation pivot; 33. Anti-dislodgement protrusion; 311. First groove segment; 312. Second groove segment; 4. Conveying device; 41. Sheath; 42. Cable. Detailed Implementation

[0030] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments analyzed and obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0031] The purpose of this invention is to provide a detachable and reloadable clamp device to solve the problems existing in the prior art. When the hemostatic clip is closed and locked, and pulled back to switch from a closed to a locked state, the connector of the connecting member remains within the restricted area. Under the constraint of the restricted area, the connector cannot open, and even with a large force, the connector will not detach from the connector, thus ensuring that the hemostatic clip can close and lock smoothly. This ensures that it can clamp larger wounds, harder tissues, and scabs, preventing situations where the hemostatic clip cannot clamp or breaks, thus improving the reliability of clamping.

[0032] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0033] Note: In the entire text, "proximal" refers to the end closer to the practitioner, and "distal" refers to the end farther from the practitioner; "axial" refers to the direction of the central axis of the hemostatic clip (or clip base), and "radial" refers to the direction perpendicular to that axis.

[0034] Example 1 like Figures 1 to 19 As shown, this embodiment provides a detachable structure, including a clamp base 1 and a conveyor base 2. The clamp base 1 and the conveyor base 2 are detachably connected. Wherein: The clip base 1 has an installation channel, the distal end of which allows for the movable installation of the hemostatic clip 3, meaning the hemostatic clip 3 can move along the axis of the installation channel. A connecting pull member 11 is provided within the installation channel; the distal end of the connecting pull member 11 is used to connect with the hemostatic clip 3, and the proximal end of the connecting pull member 11 has a radially opening insertion interface. An installation area is provided within the installation channel from the distal end to the proximal end (see reference). Figure 10 and Figure 21 The shown connector is located in the installation area, and the restricted area is (reference). Figure 12 and Figure 23 The interface shown is located in the restricted area and the release area (see reference). Figure 13 and Figure 24 The connector shown is located in the release region. Both the mounting and release regions allow the connector to open radially, while the restraining region is used to radially constrain the connector.

[0035] The delivery seat 2 has a moving channel 21 for connecting to the sheath 41 of the delivery device 4. The moving channel 21 has a movable inner core 22. The proximal end of the inner core 22 is connected to the cable 42 inside the sheath 41, and the distal end of the inner core 22 has a connector 23 for insertion into the insertion port. The connector 23 includes an enlarged section 231 and a constricted section 232 arranged sequentially from the distal end to the proximal end. The enlarged section 231 can open the insertion port, and the constricted section 232 allows the insertion port to retract. The constricted section 232 is clamped by the insertion port. When the connector 23 is clamped, it can drive the connecting pull member 11 to rotate together, thereby realizing the rotation of the hemostatic clip 3. The rotation angle is adjusted to align with the opening of the tissue to be clamped.

[0036] During the transition from the closed to the locked state, the insertion interface of the hemostatic clip 3 is located within the restricted area (see reference). Figure 12 and Figure 23 (As shown); On the path of the hemostatic clip 3 continuing to move proximally to the installation channel after locking, the insertion interface must be located at least within the release area (see reference). Figure 13 and Figure 24 (As shown).

[0037] Working principle: During the processing and assembly of the reusable clamp device: the hemostatic clip 3 is pre-installed on the clamp seat 1, and the connecting pull piece 11 and the hemostatic clip 3 are connected. The delivery seat 2 is connected to the sheath 41 of the delivery device 4, and the proximal end of the inner core 22 is connected to the cable 42.

[0038] Reloadable clamp devices during treatment: First, assemble the conveyor seat 2 and the clamp seat 1. During the assembly process, first insert the far end of the conveyor seat 2 into the installation channel of the clamp seat 1, and then push the cable 42 to move the inner core 22 into the installation channel of the clamp seat 1. As the inner core 22 moves, the inner core 22 will radially push up the elastic clip 24 inside the conveyor seat 2. The outer bend 241 of the elastic clip 24 is radially pushed out of the protrusion 211 of the conveyor seat 2 and is inserted into the locking groove 16 at the near end of the clamp seat 1, thus completing the assembly of the clamp seat 1 and the conveyor seat 2. Then, push the cable 42 to move the connector 23 toward the insertion interface of the connecting pull member 11, positioning the hemostatic clip 3 (by hand, tool, or a special limiting shell, etc.), keeping the connecting pull member 11 within the installation area, and continue pushing the cable 42 to insert the connector 23 into the insertion interface of the connecting pull member 11 (see reference). Figure 10 and Figure 21 As shown, the resistance value of inserting the connector 23 into the connecting pull member 11 is recorded as F1; Then, guided by the endoscopic forceps channel, the hemostatic clip 3 and clip seat 1 are delivered into the patient's digestive tract using the delivery device 4, so that the hemostatic clip 3 reaches the predetermined surgical position in the patient's body. The inner core 22 is moved away from the surgeon by the forward push cable 42, and the connector 23 pushes the connecting pull piece 11 and the hemostatic clip 3 forward to open them. Rotating the pull cable 42 causes the inner core 22 to rotate, thereby causing the clip seat 1 and the hemostatic clip 3 to rotate together through the connector 23, thus clamping the clip. After positioning the clip at the wound site, pull the cable 42 backward, causing the inner core 22 to move towards the surgeon. The connector 23 pulls the connecting piece 11 and the hemostatic clip 3 backward, gradually closing the wound. As the hemostatic clip 3 is pulled, it gradually closes, at which point the connector 11's insertion point initially enters the restricted area. Continuing to pull the hemostatic clip 3 causes it to switch from a closed state to a locked state. Throughout this process, the connector 11's insertion point remains within the restricted area (see reference). Figure 12 and Figure 23 As shown), the tension force on the connector 23 during the process of the hemostatic clip 3 crossing the locking position from the far end to the proximal end of the installation channel is recorded as F2. Because the connector is limited by the restricted area, the connector will not open, and thus the connector 23 will not detach from the connector until the closure and locking are completed. After the locking is completed, continue pulling the connector 23. As the hemostatic clip 3 moves, the connector will enter the release area along its movement path. Because it is no longer restricted by the restricted area, the connector 23 can be disengaged from the connector of the connecting puller 11 with a small force (see reference). Figure 14 As shown in the figure, the maximum tensile force on the connector 23 during the process of disengaging the connector 23 from the connecting pull member 11 is denoted as F3; Then, pull the cable 42 back, and the inner core 22 retracts into the moving channel 21 of the delivery seat 2. As the connector 23 retracts to the proximal side of the protrusion 211, the elastic clip 24 in the delivery seat 2 resets under the elastic action, and the outer bend 241 retracts from the protrusion 211 and disengages from the locking groove 16 at the proximal end of the clamp seat 1, thereby releasing the clamp seat 1. The operator pulls the delivery seat 2 proximally to remove the delivery seat 2 from the clamp seat 1, thus achieving complete separation of the delivery device 4 and the hemostatic clip 3. The delivery seat 2 can be pulled out through the endoscopic forceps channel.

[0039] During the installation and release process of the connecting member 11 and the plug 23, the forces acting on the plug 2 have the following corresponding relationship: F3 > F1; F2 > F1. In actual installation, F2 is usually between 20N and 50N; F3 is usually no more than 100N.

[0040] In one embodiment, the connecting member 11 is an elastic member capable of radial expansion at its proximal end.

[0041] In one embodiment, the connecting member 11 includes two symmetrically spaced U-shaped members 111, the spacing of which is sufficient to accommodate the constrained expansion section 231. Each U-shaped member 111 includes a web and two arms, the web being located at the proximal end, and the proximal ends of the two arms being connected to the web and extending distally from the web. The spacing between the two arms of each U-shaped member 111 is also sufficient to accommodate the constrained expansion section 231. The distal ends of the corresponding arms of the two U-shaped members 111 are connected together by connecting pieces 112, that is, the two arms on the same side of the two U-shaped members 111 are connected together by one connecting piece 112, and the two arms on opposite sides are connected together by another connecting piece 112. The two connecting pieces 112 are connected to the hemostatic clip 3 via a movable pivot 12, the movable pivot 12 being slidably connected within the installation channel.

[0042] In one embodiment, a locking position is provided within the installation channel. The hemostatic clip 3 moves from the distal end to the proximal end of the installation channel and gradually closes under the pull of the connecting puller 11. When the fixing pivot 32 reaches the anti-dislodgement protrusion 33, the hemostatic clip 3 reaches the locking position within the installation channel. When the hemostatic clip 3 passes this locking position from the distal end to the proximal end, the hemostatic clip 3 switches from the closed state to the locked state (see reference). Figure 12 and Figure 23 (As shown). During the process of switching the hemostatic clip 3 from the closed state to the locked state, it is necessary to ensure that the insertion interface at the proximal end of the connecting pull piece 11 is within the restricted area of ​​the mounting channel of the clip base 1 (refer to...). Figure 12 and Figure 23 As shown, when the hemostatic clip 3 passes the locking position from the distal end to the proximal end (i.e., during the process of the fixing pivot 32 passing the anti-disengagement protrusion 33), the connector 23 is most likely to detach from the connector interface at the proximal end of the connecting pull member 11. However, this invention, by setting a limiting area between the installation area and the release area, effectively restricts the radial opening of the connector interface at the proximal end of the connecting pull member 11 during the process of the hemostatic clip 3 switching from the closed state to the locked state, thereby ensuring a reliable connection between the connector 23 and the connecting pull member 11.

[0043] Of course, the connector can also be positioned so that it enters the restricted area earlier. For example, when the hemostatic clip 3 has finished clamping the tissue, it may not yet be near the locking position. At this time, there is still a risk that the connector and the plug 23 will disengage. Therefore, when setting the restricted area, the length of the restricted area setting can be increased so that when the hemostatic clip 3 is in its current position, the connector has already entered the restricted area (e.g., Figure 19 As shown, if the through hole 131 is positioned closer to the distal end, the first stepped channel 13 grows in the area between the through hole 131 and the second stepped channel 14 (i.e., the growth of the restricted area); on the movement path of the hemostatic clip 3 from the distal end to the proximal end after passing the locking position, the insertion interface of the connecting puller 11 can at least be located within the release area (refer to...). Figure 13and Figure 24 (As shown).

[0044] As can be seen from the above description, in this invention, during the process of the practitioner pulling the hemostatic clip 3 from the closed state to the locked state, the insertion interface is always located within the restricted area (see reference). Figure 12 and Figure 23 As shown), the connector will not open, and therefore the connector 23 will not detach from the connector until the hemostatic clip 3 passes the locking position from the distal to the proximal end and completes the closure locking. In the subsequent movement path, the connector will enter the release area. Because it is no longer restricted by the clamp seat 1, as long as a force greater than or equal to that required for the connector 23 to detach under natural conditions is applied, the connector 23 and the connecting pull piece 11 can be detached (see reference). Figure 14 (As shown).

[0045] In one embodiment, the connecting member 11 is an elastic member capable of radial expansion at its proximal end.

[0046] In one embodiment, the connecting member 11 includes two symmetrically spaced U-shaped members 111, the spacing of which is sufficient to accommodate the constrained expansion section 231. Each U-shaped member 111 includes a web and two arms, the web being located at the proximal end, and the proximal ends of the two arms being connected to the web and extending distally from the web. The spacing between the two arms of each U-shaped member 111 is also sufficient to accommodate the constrained expansion section 231. The distal ends of the corresponding arms of the two U-shaped members 111 are connected together by connecting pieces 112, that is, the two arms on the same side of the two U-shaped members 111 are connected together by one connecting piece 112, and the two arms on opposite sides are connected together by another connecting piece 112. The two connecting pieces 112 are connected to the hemostatic clip 3 via a movable pivot 12, the movable pivot 12 being slidably connected within the installation channel.

[0047] In one embodiment, the webs of the two U-shaped members 111 are respectively provided with snap-fit ​​grooves 114 on their opposite surfaces, and the snap-fit ​​grooves 114 of the two U-shaped members 111 form an insertion interface. During the insertion of the connector 23 into the insertion interface, the enlarged section 231 first passes through the snap-fit ​​grooves 114 and spreads the webs of the two U-shaped members 111 apart, so that the snap-fit ​​grooves 114 of the two U-shaped members 111 move away from each other, thereby opening the insertion interface. Then, the necked section 232 reaches the snap-fit ​​grooves 114. Since the diameter of the necked section 232 is smaller than the diameter of the enlarged section 231, the snap-fit ​​grooves 114 of the two U-shaped members 111 move closer together again, so that the insertion interface closes and clamps the necked section 232.

[0048] In one embodiment, lugs 113 are correspondingly provided on the outer surfaces of the webs of the two U-shaped members 111, and the lugs 113 correspond to the positions of the snap-fit ​​grooves 114. The outer surface of the web of the U-shaped member 111 refers to the side facing the mounting channel of the clip seat 1, and the side of the webs of the two U-shaped members 111 facing each other is the inner surface. When the lugs 113 are within the mounting area, the connector 23 can be inserted into the connector interface. When the lugs 113 are within the restricted area, the connector interface cannot be opened. When the lugs 113 are within the release area, the connector 23 can disengage from the connector interface.

[0049] In one embodiment, the proximal end of the hemostatic clip 3 and the connecting piece 112 are hinged by a movable pivot 12, which is slidably connected within the mounting channel. Pulling or pushing the connecting pull member 11 will synchronously move the connecting piece 112, causing the hemostatic clip 3 to move.

[0050] In one embodiment, the installation channel includes a first stepped channel 13 and a second stepped channel 14, which are arranged sequentially from the distal end to the proximal end of the installation channel along its axial direction. The distal end of the first stepped channel 13 has a movement groove 15 for the hemostatic clip 3 to extend outwards. The proximal end of the first stepped channel 13 has a through hole 131. When the connector 23 is inserted into the connector 11, the two U-shaped pieces 111 gradually open. During this opening process, the lug 113 gradually extends out of the through hole 131, allowing the connector to open. Within the installation area, the lug 113 corresponds to the through hole 131, meaning the through hole 131 is the location of the installation area (see reference). Figure 10 (As shown). The diameter of the second-step channel 14 is larger than that of the first-step channel 13, and the second-step channel 14 is provided with a release area (see reference). Figure 13 As shown), within the release area, the second stepped channel 14 provides release space for the connecting pull member 11 (the lugs 113 on the two U-shaped members 111 expand). The first stepped channel 13 has a restrictive area between the through hole 131 and the second stepped channel 14 (see reference). Figure 12 As shown), within the restricted area, the first stepped channel 13 restricts the connecting pull member 11 to the area between the through hole 131 and the second stepped channel 14, that is, the lugs 113 on the two U-shaped members 111 cannot expand.

[0051] In one embodiment, different sizes of through holes 131 can be provided according to different tissue thicknesses. This size mainly refers to the length of the through hole 131 in the direction of the mounting channel axis, which can accommodate the clamping of tissues of different thicknesses. For example, when clamping tissue of normal thickness, the hemostatic clip 3 usually reaches the locking position when clamping the tissue. At this time, the size of the through hole 131 needs to be set to ensure that when the hemostatic clip 3 reaches the locking position, the lug 113 just passes through the through hole 131 and enters the restricted area. When clamping thicker tissue, the hemostatic clip 3 may clamp the tissue before reaching the locking position. If the pull is continued, the connector 23 may disengage from the connector puller 11 before the hemostatic clip 3 reaches the locking position due to the lug 113 corresponding to the through hole 131. Therefore, the position of the through hole 131 in the axial direction of the installation channel can be moved forward, that is, the position is closer to the far end of the installation channel. This way, when the hemostatic clip 3 clamps the tissue, before reaching the locking position, the lug 113 has already passed the through hole 131 and entered the restricted area. At this time, regardless of whether the locking position is reached, the radial constraint of the restricted area can ensure that the connector 23 will not disengage from the connector puller 11.

[0052] In one embodiment, a first groove 17 is provided in the first stepped channel 13 for sliding connection of the U-shaped member 111. A second groove 18 is provided on the first groove 17 for sliding connection of the movable pivot 12. Under the action of the first groove 17 and the second groove 18, the connecting pull member 11 can be stably slid along the axial direction of the installation channel.

[0053] In one embodiment, the enlarged section 231 of the connector 23 is a conical head, with the small-diameter end of the conical head extending distally away from the constricted section 232, and the large-diameter end of the conical head having a diameter larger than that of the constricted section 232. Preferably, the constricted section 232 is a circular section, and the matching locking groove 114 is semi-circular, with the two forming an interference fit.

[0054] In one embodiment, the length of the necked section 232 is greater than the thickness of the web of the U-shaped member 111, ensuring that the necked section 232 can be fitted in.

[0055] In one embodiment, the diameter of the inner core 22 is larger than that of the constricted section 232, so that an annular groove is formed between the expanded section 231 and the inner core 22 at the constricted section 232.

[0056] In one embodiment, a locking groove 16 is provided at the proximal end of the installation channel (e.g., the second-step channel 14). The distal end of the conveyor 2 can extend into the installation channel. An extension 211 is provided on the moving channel 21, which corresponds to the locking groove 16 during the extension of the conveyor 2 into the installation channel. An elastic retainer 24 is provided inside the moving channel 21, which can be lifted by the inner core 22. The distal end of the elastic retainer 24 is provided with an outer bend 241, which extends out of the extension 211 after the elastic retainer 24 is lifted.

[0057] The principle of detachable connection between clamp seat 1 and conveyor seat 2: Insert the far end of the conveyor seat 2 into the installation channel so that the protrusion 211 corresponds to the locking groove 16 of the clamp seat 1. Then push the cable 42 to move the inner core 22 into the installation channel of the clamp seat 1. As the inner core 22 moves, it will push up the elastic clip 24. The outer bend 241 of the elastic clip 24 is pushed out of the protrusion 211 and locked into the locking groove 16, thus completing the assembly of the clamp seat 1 and the conveyor seat 2.

[0058] Pull the cable 42 back, and the inner core 22 retracts into the moving channel 21 of the conveyor seat 2. As the connector 23 exceeds the position of the protrusion 211, the elastic clip 24 resets under the action of elasticity, the outer bend 241 retracts into the protrusion 211, disengages from the locking groove 16, and the conveyor seat 2 is pulled out, thus completing the disassembly of the clamp seat 1 and the conveyor seat 2.

[0059] In one embodiment, there are at least two elastic clips 24, which are circumferentially arranged on the moving channel 21, and the inner core 22 is located between the multiple elastic clips 24.

[0060] In one embodiment, the moving channel 21 is provided with an installation port, and the proximal end of the elastic clip 24 is provided with a folded section, which is interference-fitted into the installation port.

[0061] In one embodiment, the elastic clip 24 is an elastic sheet with a rectangular cross-section. Of course, depending on the actual use, the cross-section of this elastic clip 24 can also be a square or a circular elastic rod.

[0062] In one embodiment, the conveyor seat 2 is provided with a limiting protrusion 25, which is used to fit against the proximal end of the clamp seat 1 when the protrusion 211 corresponds to the locking groove 16.

[0063] In one embodiment, the inner core 22 has a plug hole 222 at its proximal end. The plug hole 222 is coaxially arranged with the inner core 22 and is used for the insertion of the cable 42.

[0064] In one embodiment, a fixing hole 223 may be provided near the inner core 22. The fixing hole 223 is perpendicular to the insertion hole 222, and the fixing hole 223 is used to press the cable 42 together with a fastener. The fastener may be a bolt or a pin. When the fastener is a bolt, the fixing hole 223 is a threaded hole.

[0065] Example 2 like Figure 1 , Figure 2 , Figure 3 as well as Figures 20 to 22 As shown, this embodiment provides a disassembly and assembly structure, most of which is the same as that of Embodiment 1. The difference lies in that the hemostatic clip 3 has a circular hole. The connecting piece 112 has a strip-shaped hole 115 extending along the axial direction of the installation channel. The strip-shaped hole 115 and the circular hole are connected by a movable pivot 12. The strip-shaped hole 115 is slidably connected to the movable pivot 12. At the same time, the movable pivot 12 is slidably connected within the installation channel.

[0066] The insertion process of connector 23 and connector 11: When the hemostatic clip 3 and the delivery device 4 need to be assembled, the plug 23 is moved toward the insertion interface of the connecting pull 11. Under the push of the plug 23, the connecting pull 11 will first continue to move to the distal end. When the proximal end of the strip hole 115 moves to the moving pivot 12, the plug 23 is pushed again, and the hemostatic clip 3 will start to move to the distal end. After the lug 113 (insertion interface) of the connecting pull 11 is in the installation area, the lug 113 (insertion interface) will open radially, so that the plug 23 is inserted into the insertion interface. When the hemostatic clip 3 needs to be closed, there are two scenarios: 1. If it is unloaded, the hemostatic clip 3 is not under force, and the connector 23 can easily pull the lug 113 (insertion interface) of the connecting pull member 11 into the restricted area. 2. If there is a wound to be clamped, the connecting pull member 11 first moves a certain distance (the length of the strip hole 115) to ensure that the lug 113 (insertion interface) of the connecting pull member 11 enters the restricted area. Under the constraint of the restricted area, the wound can be closed, and the locking position can be crossed to complete the closure and locking.

[0067] When it is necessary to release the hemostatic clip 3, continue to pull the connector 23. After pulling the connector 23 and the lug 113 (insertion interface) of the connecting pull member 11 into the release area, continue to pull the connector 23 to disengage the connector 23 from the lug 113 (insertion interface) of the connecting pull member 11, thus completing the release of the hemostatic clip 3.

[0068] In one embodiment, the installation channel includes a first stepped channel 13 and a second stepped channel 14, which are arranged sequentially from distal to proximal along the axis of the installation channel. The distal end of the first stepped channel 13 is provided with a movement groove 15 for the hemostatic clip 3 to expand outwards. The movement groove 15 is provided with an installation area (see reference). Figure 21 As shown), when the lug 113 moves to the motion groove 15, and the connector 23 is inserted into the connector interface of the connecting pull member 11, the lugs 113 on both sides of the connecting pull member 11 will be opened and extend out of the motion groove 15, thereby allowing the connector interface to open and the connector 23 to be inserted into the connector interface. The diameter of the second step channel 14 is larger than that of the first step channel 13, and the second step channel 14 is provided with a release area (see reference). Figure 24 (As shown). The first stepped channel 13 has a restricted area between the motion groove 15 and the second stepped channel 14 (see reference). Figure 23 (As shown).

[0069] Example 3 like Figure 1 , Figure 2 , Figure 3 as well as Figures 23 to 25 As shown, this embodiment provides a disassembly and assembly structure, most of which is the same as that in embodiment 2. The difference from embodiment 2 is that the strip hole on the connecting piece 112 is replaced with a circular hole, and the circular hole on the hemostatic clip 3 is replaced with a strip hole. That is, the shapes of the holes on the connecting piece 112 and the hemostatic clip 3 for pivoting with the moving pivot 12 are interchanged. In this embodiment, the interchange of hole shapes can also realize the mutual cooperation process between the plug 23 and the connecting pull piece 11 as described in embodiment 2. That is, the plug-in process of the plug 23 and the connecting pull piece 11, the closing / locking process of the hemostatic clip 3, and the release process of the hemostatic clip 3 in this embodiment can all refer to embodiment 2.

[0070] Example 4 like Figures 1 to 25 As shown, this embodiment provides a reusable clamp device, including a hemostatic clip 3, a delivery device 4, and a disassembly / assembly structure. The disassembly / assembly structure adopts the disassembly / assembly structure of Embodiment 1, Embodiment 2, or Embodiment 3. The hemostatic clip 3 is installed on the mounting channel of the clamp seat 1 of the disassembly / assembly structure, and the hemostatic clip 3 and the clamp seat 1 form a complete hemostatic clip. The sheath 41 of the delivery device 4 is connected to the proximal end of the delivery seat 2 of the disassembly / assembly structure, and the cable 42 of the delivery device 4 is connected to the proximal end of the inner core 22 of the delivery seat 2. The delivery device 4 and the delivery seat 2 form a complete delivery system.

[0071] In one embodiment, the hemostatic clip 3 includes two clamping arms, the proximal ends of which are hinged together (e.g., via a movable pivot 12). A movable groove 31 is provided on the clamping arms. A fixed pivot 32 is fixedly connected within the mounting channel, and the movable groove 31 is slidably connected to the fixed pivot 32. An anti-dislodgement protrusion 33 is provided on the movable groove 31. The anti-dislodgement protrusion 33 is located near the distal end of the movable groove 31. When the fixed pivot 32 reciprocates relative to the anti-dislodgement protrusion 33 at the proximal end of the movable groove 31, the hemostatic clip 3 completes the opening or closing action; when the fixed pivot 32 overcomes the locking force generated by the anti-dislodgement protrusion 33 and slides relative to the distal end of the movable groove 31, the hemostatic clip 3 completes the switch from a closed state to a locked state, realizing the closed and locked state of the hemostatic clip 3. Specifically: as shown... Figures 22 to 24 As shown, when the fixed pivot 32 is at the distal end of the moving slide 31, the two clamping arms of the hemostatic clip 3 are in a locked state. When the fixed pivot 32 moves to the proximal end of the moving slide 31, the two clamping arms of the hemostatic clip 3 are in an open state. When the fixed pivot 32 passes the anti-dislodgement protrusion 33 and moves towards the distal end of the moving slide 31, the hemostatic clip 3 is in a locked state, completing the closed locking. That is, the position on the installation channel corresponding to the fixed pivot 32 passing the anti-dislodgement protrusion 33 is the locked position.

[0072] In one embodiment, the motion groove 31 includes a first groove segment 311 and a second groove segment 312 arranged sequentially from the distal end to the proximal end (e.g., Figure 25 As shown), the first groove segment 311 and the second groove segment 312 have an included angle, and the anti-detachment protrusion 33 is located at the inflection point of the first groove segment 311 and the second groove segment 312. Specifically: as shown... Figures 20 to 25 As shown, when the fixing pivot 32 moves relative to the first groove 311 from the second groove 312, the two clamping arms of the hemostatic clip 3 gradually change from an open state to a closed state. When the fixing pivot 32 moves relative to the first groove 311 and passes the anti-dislodgement protrusion 33, the two clamping arms of the hemostatic clip 3 lock, changing from a closed state to a locked state. With the combined action of the inflection point of the first groove 311 and the second groove 312 and the anti-dislodgement protrusion 33, the fixing pivot 32 can be effectively limited, preventing it from sliding back to the second groove 312 and causing the hemostatic clip 3 to open when the hemostatic clip 3 is normally clamping the tissue, thus ensuring the stability of the hemostatic clip 3.

[0073] Specific examples have been used to illustrate the principles and implementation methods of this invention. The descriptions of the above embodiments are only for the purpose of helping to understand the method and core ideas of this invention. Furthermore, those skilled in the art will recognize that, based on the ideas of this invention, there will be changes in the specific implementation methods and application scope. Therefore, the content of this specification should not be construed as a limitation of this invention.

Claims

1. A disassembly and assembly structure, comprising a detachably connected clamp seat and a conveyor seat; The clip holder is provided with an installation channel, and the distal end of the installation channel is used for the movable installation of the hemostatic clip; The conveying seat is used to connect to the sheath of the conveying device; Its features are, Also includes: A movable channel is provided within the conveyor seat, and a movable inner core is provided within the movable channel. The proximal end of the inner core is used to connect with the cable inside the sheath, and the distal end of the inner core is provided with a connector, which includes an enlarged section and a constricted section arranged sequentially from the distal end to the proximal end. The installation channel includes a connecting pull member, the distal end of which is used to connect with the hemostatic clip, and the proximal end of which is provided with a radially opening insertion interface. The installation channel is provided with an installation area, a restriction area, and a release area from the distal end to the proximal end. Both the installation area and the release area allow the insertion interface to open radially to allow the enlarged section of the insertion connector to pass through. The restriction area is used to radially constrain the insertion interface to clamp the constricted section. During the process of switching from a closed state to a locked state, the insertion interface of the hemostatic clip is located within the restricted area.

2. The disassembly and assembly structure according to claim 1, characterized in that, The installation channel is provided with a locking position. As the hemostatic clip passes the locking position from the far end to the proximal end of the installation channel, it can switch from a closed state to a locked state. On the movement path of the hemostatic clip after passing the locking position, the insertion interface can be located at least within the release area.

3. The disassembly and assembly structure according to claim 1, characterized in that, The connecting member is an elastic component that can expand radially at its proximal end.

4. The disassembly and assembly structure according to claim 3, characterized in that, The connecting member includes two symmetrical U-shaped members spaced apart. Each U-shaped member includes a proximal web and two arms extending distally from the web. The distal ends of the corresponding arms of the two U-shaped members are connected as a whole by a connecting piece. The connecting piece is connected to the hemostatic clip via a movable pivot. The movable pivot is slidably connected within the installation channel. The space formed by the two U-shaped members can accommodate and constrain the enlarged section of the connector.

5. The disassembly and assembly structure according to claim 4, characterized in that, The webs of the two U-shaped pieces are provided with corresponding snap-fit ​​grooves on their opposite surfaces, and the snap-fit ​​grooves of the two U-shaped pieces form the insertion interface, which can restrict and constrain the necked section of the insertion connector.

6. The disassembly and assembly structure according to claim 5, characterized in that, Lugs are provided on the outer sides of the webs of the two U-shaped pieces, and the lugs correspond to the positions of the snap-fit ​​grooves.

7. The disassembly and assembly structure according to claim 6, characterized in that, The proximal end of the hemostatic clip and the connecting piece are hinged by a movable pivot, which is slidably connected within the mounting channel.

8. The disassembly and assembly structure according to claim 7, characterized in that, The installation channel includes a first stepped channel and a second stepped channel arranged sequentially from the distal end to the proximal end. The diameter of the second stepped channel is larger than that of the first stepped channel. The distal end of the first stepped channel is provided with a movement groove for the hemostatic clip to expand outward, and the proximal end of the first stepped channel is provided with a through hole for the lug to extend outward. When the connector is within the installation area, the lug can extend outward to the through hole; When the insertion interface is within the release area, the second stepped channel can provide release space for the outward expansion of the lug; When the connector is within the restricted area, the first stepped channel can radially constrain the connector to prevent the connector from detaching from the connector.

9. The disassembly and assembly structure according to claim 6, characterized in that, One of the hemostatic clip and the connecting piece is provided with a strip-shaped hole, and the other is provided with a circular hole. The strip-shaped hole extends along the axial direction of the installation channel. The strip-shaped hole and the circular hole are connected by a movable pivot, and the movable pivot is slidably connected within the installation channel. When the hemostatic clip is in the open state, the movable pivot moves relative to the proximal end of the strip hole, and the lug is located in the installation area; When the hemostatic clip is in the locked state, the movable pivot moves relative to the distal end of the strip hole, and the lug is located in the release area.

10. The disassembly and assembly structure according to claim 9, characterized in that, The installation channel includes a first stepped channel and a second stepped channel arranged sequentially from the distal end to the proximal end. The diameter of the second stepped channel is larger than that of the first stepped channel. The distal end of the first stepped channel is provided with a movement groove for the hemostatic clip to expand outward. When the connector is within the installation area, the lug can extend outward to the position of the movement groove; When the insertion interface is within the release area, the second stepped channel can provide release space for the outward expansion of the lug; When the connector is within the restricted area, the first stepped channel can radially constrain the connector to prevent the connector from detaching from the connector.

11. The disassembly and assembly structure according to claim 8 or 10, characterized in that, The first stepped channel is provided with a first sliding groove for the U-shaped component to slide and connect, and the first sliding groove is provided with a second sliding groove for the movable pivot to slide and connect.

12. The disassembly and assembly structure according to claim 1, characterized in that, The enlarged section of the connector is a conical head, with the small-diameter end of the conical head extending distally, and the large-diameter end of the conical head having a diameter greater than that of the constricted section.

13. The disassembly and assembly structure according to claim 1, characterized in that, The near end of the installation channel is provided with a locking groove, the far end of the conveyor seat can extend into the installation channel, the moving channel is provided with an extension opening, the extension opening can correspond to the locking groove during the process of the conveyor seat extending into the installation channel, the moving channel is provided with an elastic clip that can be lifted by the inner core, and the far end of the elastic clip is provided with an outward bend that can extend out of the extension opening after being lifted.

14. The disassembly and assembly structure according to claim 13, characterized in that, The conveyor seat is provided with a limiting protrusion, which is used to fit against the proximal end of the clamp seat when the protrusion corresponds to the locking groove.

15. The disassembly and assembly structure according to claim 1, characterized in that, The inner core has a plug hole at its proximal end for inserting the cable.

16. A reusable clamping device, characterized in that, The device includes a hemostatic clip, a delivery device, and a disassembly and assembly structure as described in any one of claims 1-15. The hemostatic clip is installed on the mounting channel of the clip seat of the disassembly and assembly structure. The sheath of the delivery device is connected to the proximal end of the delivery seat of the disassembly and assembly structure, and the cable of the delivery device is connected to the proximal end of the inner core of the delivery seat.

17. The reusable clamp device according to claim 16, characterized in that, The hemostatic clip includes two clamping arms, the proximal ends of which are hinged together. Each clamping arm has a movable groove. A fixed pivot is fixedly connected within the installation channel. The movable groove is slidably connected to the fixed pivot. The movable groove has anti-dislodgement protrusions, which are located near the distal end of the movable groove. When the fixed pivot reciprocates between the proximal end of the movable groove and the anti-dislodgement protrusions, the hemostatic clip completes the opening or closing action. When the fixed pivot overcomes the locking force generated by the anti-dislodgement protrusions and slides relative to the distal end of the movable groove, the hemostatic clip switches from a closed state to a locked state.

18. The reusable clamp device according to claim 17, characterized in that, The motion chute includes a first chute segment and a second chute segment arranged sequentially from the distal end to the proximal end, with an included angle between the first chute segment and the second chute segment, and the anti-detachment protrusion is located at the inflection point of the first chute segment and the second chute segment.

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