Clip conveying device and clip apparatus

Abstract

The application discloses a clip conveying device and a clip device, and belongs to the field of medical instruments. In the embodiment of the application, the sheath assembly has a lateral hole, and a connecting assembly is arranged in the sheath assembly. When the pull cable assembly moves along the channel into the distal clip holder, the connecting assembly can be extruded, the connecting assembly is extruded by the pull cable assembly, part of the connecting assembly can protrude out of the sheath assembly from the lateral hole, and the connecting assembly is connected with the clip holder. That is, by controlling the action of the pull cable assembly, the clip conveying device and the clip assembly can be smoothly connected, so that the clip conveying device and the clip assembly can be arranged in a split structure, the clip conveying device and the clip assembly can be transported and stored respectively, the space occupation and the transportation and storage cost are reduced. After the clip assembly is released, the clip conveying device can be connected with another clip assembly through the same connection mode, so that the clip conveying device can be repeatedly used, and the use cost is reduced.

Description

Technical Field

[0001] This application belongs to the field of medical device technology, specifically relating to a clamp delivery device and clamp equipment. Background Technology

[0002] In the field of medical devices, especially surgical instruments, endoscopic technology is being used more and more widely. An endoscope is a medical device with illumination and observation functions. By inserting it into the body, doctors can observe the internal condition, thereby enabling diagnosis or treatment. In many surgeries, such as gastrointestinal and respiratory surgeries, hemostatic clips are needed to control bleeding. Hemostatic clips are common surgical instruments; by inserting the clip into the body and then controlling it to clamp blood vessels or tissues, hemostasis is achieved.

[0003] Currently, hemostatic clips are single-use, one-piece structures. While this design is simple and convenient, it is also costly and does not help reduce surgical costs. Utility Model Content

[0004] The purpose of this utility model is to provide a clamp delivery device to solve the technical problem of high disposable cost of hemostatic clamps with current integrated structures; another purpose of this application is to provide a clamp device.

[0005] Technical solution: An embodiment of this application describes a clamp conveying device for conveying clamp assemblies, wherein the clamp assembly and the clamp conveying device are configured as separate structures; the clamp conveying device includes: A sheath assembly having a channel and a lateral aperture, the channel extending through the proximal and distal ends of the sheath assembly, and the lateral aperture communicating with the channel; A connecting component is disposed within the channel and connected to the sheath assembly; A cable assembly is threaded through the channel; The cable assembly is capable of moving along the channel toward the distal end; When the cable assembly moves toward the distal end, the cable assembly can compress the connecting assembly so that a portion of the connecting assembly protrudes from the lateral hole to the outside of the sheath assembly to connect the clip assembly. In some embodiments, the cable assembly is also movable along the channel toward the proximal end of the sheath assembly; As the cable assembly moves toward the proximal end of the sheath assembly, the connecting assembly retracts toward the lateral hole.

[0006] In some embodiments, the connection component includes: The elastic part has a fixed end and a movable end that are disposed opposite to each other, and the fixed end is fixed to the sheath assembly; A protruding tongue is connected to the movable end and extends from the movable end toward the lateral hole; When the cable assembly moves toward the clamp, the cable assembly can compress the elastic part to cause it to elastically deform, thereby causing the tongue to protrude from the lateral hole to the outside of the sheath assembly.

[0007] In some embodiments, the sheath assembly has a central axis O; The distance between the fixed end and the central axis O is greater than the distance between the movable end and the central axis O.

[0008] In some embodiments, the tongue has a shoulder located within the sheath assembly; The shoulder can contact the sidewall of the sheath assembly.

[0009] In some embodiments, the sheath assembly further has a mounting hole communicating with the channel; The connecting component further includes a bending portion connected to the fixed end, the bending portion being disposed within the assembly hole and abutting against the hole wall of the assembly hole.

[0010] In some embodiments, the sheath assembly has a plurality of said lateral holes arranged circumferentially thereon; The clamp conveying device includes a plurality of the connecting components, and the tongue of each connecting component is provided corresponding to a lateral hole.

[0011] In some embodiments, the sheath assembly further has clearance grooves communicating with the channel, the clearance grooves being located on opposite sides of the sheath assembly in its radial direction and extending along the extension direction of the sheath assembly; the clamp delivery device further includes: An auxiliary assembly is configured to move along the extension direction of the sheath assembly. The auxiliary assembly has a clamping part, which is disposed opposite to the clearance groove. The clamping part is configured to be able to enter the channel through the clearance groove when squeezed, so as to clamp the cable assembly.

[0012] In some embodiments, the auxiliary fitting includes a main body that is sleeved on the sheath assembly and movable along the extension direction of the sheath assembly, and the clamping part is connected to the main body. The main body has a clearance groove, and the clearance groove is provided correspondingly to the avoidance groove; At least a portion of the clamping part is disposed within the clearance groove, and the clamping part is configured such that when compressed, at least a portion of it can pass through the clearance groove and enter the avoidance groove.

[0013] In some embodiments, the clamping portion includes: A drive arm has a connecting end and a free end disposed opposite to each other, the connecting end being connected to the main body; from the connecting end to the free end, at least a portion of the drive arm extends in a direction gradually moving away from the cable assembly; A pressure head is connected to the free end and extends from the free end toward the cable assembly.

[0014] In some embodiments, the sheath assembly includes a sheath body and a transition cap arranged sequentially from its proximal end to its distal end and connected to each other, the cable assembly passing through the sheath body and the transition cap, the lateral hole being formed on the transition cap, and at least a portion of the connecting assembly being located within the transition cap.

[0015] In some embodiments, the end of the transition cap away from the sheath body is the distal end of the sheath assembly, the transition cap is provided with a limiting step, and the lateral hole is located on the side of the limiting step near the distal end. In some embodiments, the cable assembly includes a connected cable and a drive head, the cable being configured to drive the drive head to move along the channel, the drive head being configured to compress the connecting assembly.

[0016] In some embodiments, the transmission head includes: The cone-shaped tip is configured to be inserted into the clamp of the clamp assembly; The base is connected to the cable and spaced apart from the cone. The connecting part connects the base and the cone head; When the cone is inserted into the clamp, at least a portion of the clamp is located between the cone and the base, and is in contact with the connecting portion.

[0017] Accordingly, the clamping device described in this application embodiment includes: The clamp conveying device as described in any of the above embodiments, and, A clamp assembly and a protective housing, the protective housing being used to assemble the clamp assembly and the clamp conveying device, the protective housing including a positioning component; The clamp assembly can be housed within the protective housing, and the clamp delivery device can be inserted into the protective housing and positioned in conjunction with the positioning assembly to connect with the clamp assembly.

[0018] In some embodiments, the clamp assembly includes a clamp and a clamp seat that houses at least a portion of the clamp, the clamp being configured to connect to a cable assembly of the clamp conveying device, the clamp seat having an inner circumferential surface with a limiting groove, and a connecting assembly of the clamp conveying device being able to be embedded in the limiting groove to connect to the clamp seat. In some embodiments, the clamp includes a clamping element and a pull buckle connected together, the pull buckle including at least two retaining units arranged about its central axis M, the retaining unit having a retaining portion at one end away from the clamping element; The drive head of the cable assembly can be inserted between the at least two retaining units, and the retaining part is used to limit the drive head so that the drive head is connected to the buckle.

[0019] In some embodiments, the internal space of the clamp has a first segment and a second segment arranged sequentially along its axial direction, the first segment being located on the side of the second segment away from the clamping element, and the radial dimension R of the first segment being greater than the radial dimension r of the second segment; When the holding part is located within the first section, the holding parts of the at least two holding units can be moved away from each other by the squeezing force of the transmission head; When the retaining part is located within the second section, the inner circumferential surface of the clamp can contact the retaining unit to prevent the retaining parts of the at least two retaining units from moving away from each other.

[0020] In some embodiments, a receiving groove is formed between the at least two retaining units, and the transmission head can be inserted into the receiving groove; the retaining part is disposed at the opening of the receiving groove and protrudes radially inward.

[0021] In some embodiments, the pull tab further includes a hinge seat hinged to the clip element, and the retaining unit is disposed on the side of the hinge seat away from the clip element; The retaining unit further includes a first retaining arm and a second retaining arm that are respectively connected to the hinge seat. The retaining part is disposed on the side of the first retaining arm and the second retaining arm away from the hinge seat and connects the first retaining arm and the second retaining arm.

[0022] In some embodiments, when the drive head is inserted between the at least two retaining units, the retaining portion is located between the cone and the base of the drive head and fits against the connecting portion.

[0023] In some embodiments, the drive head is capable of rotating the clamp assembly relative to the connecting assembly.

[0024] In some embodiments, the pull tab is configured as an elastic structure.

[0025] In some embodiments, the clip element includes a first clip and a second clip hinged to the pull buckle, both the first clip and the second clip being provided with a sliding groove; a pin is provided in the clamping seat, and the pin passes through the sliding groove; The slide has an open position A, a closed position B, and a locked position C. The cable assembly drives the clamping element to move through the buckle, so that the pin can reciprocate between the open position A and the closed position B. In the open position A, the first clamping piece and the second clamping piece are open, and in the closed position B, the first clamping piece and the second clamping piece are closed. The locking position C is located on the side of the closed position B away from the open position A. The first clip has a first protrusion in its groove, and the second clip has a second protrusion in its groove opposite to the first protrusion. The first protrusion and the second protrusion are located between the locking position C and the closed position B. The cable assembly drives the clip element to move towards the proximal end through the buckle, so that the pin presses the first protrusion and the second protrusion and moves to the locking position C. In the locking position C, the first clip and the second clip are locked.

[0026] In some embodiments, the first clip is provided with a first clearance notch, and the second clip is provided with a second clearance notch. The pin presses the first protrusion and the second protrusion, which can cause the first protrusion to deform toward the first clearance notch and the second protrusion to deform toward the second clearance notch.

[0027] In some embodiments, the protective shell further includes: The housing assembly has an internal receiving slot and an assembly slot, the receiving slot for holding the clamp assembly, and the assembly slot for the clamp conveying device to be inserted into the receiving slot therethrough; The positioning component is connected to the shell component and includes a first positioning part and a second positioning part disposed opposite to each other. The first positioning part and the second positioning part are disposed between the receiving groove and the assembly groove. The first positioning part and the second positioning part are used to cooperate with the sheath assembly in the clamp conveying device to position the sheath assembly when the clamp conveying device is inserted into the receiving groove.

[0028] Beneficial Effects: The clamp conveying device provided in this application embodiment is used to convey clamp assemblies. The clamp conveying device and the clamp assembly are configured as separate structures. The clamp conveying device includes: a sheath assembly having a channel and a lateral hole, the channel penetrating the proximal and distal ends of the sheath assembly, and the lateral hole communicating with the channel; a connecting assembly disposed within the channel and connected to the sheath assembly; and a cable assembly passing through the channel. The cable assembly is capable of moving along the channel toward the distal end. When the cable assembly moves toward the distal end, it can compress the connecting assembly, causing a portion of the connecting assembly to protrude from the lateral hole to the outside of the sheath assembly, thereby connecting the clamp assembly. In other words, by controlling the movement of the cable assembly, the clamp conveying device and the clamp assembly can be smoothly connected. Therefore, the clamp conveying device and the clamp assembly can be configured as separate structures, allowing for separate transportation and storage, reducing space occupation and transportation and storage costs. After releasing the clamp assembly, the clamp conveying device can be connected to another clamp assembly using the same connection method to achieve repeated use and reduce operating costs.

[0029] The clamping device of this application embodiment can have all the technical features and effects of the above-mentioned clamping conveying device, which will not be repeated here. Attached Figure Description To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0030] Figure 1 A schematic diagram of the structure of the clamp assembly and clamp conveying device in a clamping device provided in an embodiment of this application; Figure 2 This is a schematic diagram of the clip assembly in one embodiment of this application; Figure 3 for Figure 2 A cross-sectional view of the middle clip assembly along line EE; Figure 4 A partial structural schematic diagram of a clamp conveying device provided in an embodiment of this application; Figure 5 for Figure 4 A magnified schematic diagram of a portion of region A in the middle; Figure 6 for Figure 5 A schematic cross-sectional view of the central structure along line AA; Figure 7 A partial cross-sectional view of the connecting assembly of a clamp conveying device provided in an embodiment of this application in an extended state; Figure 8This is a partial structural diagram of the clamp conveying device and clamp assembly connected to the clamp seat in an embodiment of this application. Figure 9 for Figure 8 A cross-sectional view of the middle structure along line CC when the retaining part is located in the first section. Figure 10 for Figure 8 A cross-sectional view of the middle structure along line CC when the retaining part is located in the second section. Figure 11 A partial structural diagram of a clamping device provided in an embodiment of this application in the clamping assembly open state; Figure 12 for Figure 11 A schematic cross-sectional view of the central structure along line BB; Figure 13 This is a schematic diagram of the connecting component in a clamp conveying device according to an embodiment of this application; Figure 14 This is a schematic diagram of the connecting assembly in a clamp conveying device according to another embodiment of this application; Figure 15 A partial structural schematic diagram of the connecting assembly of a clamp conveying device provided in an embodiment of this application in an extended state; Figure 16 for Figure 15 Side view of the middle structure; Figure 17 for Figure 16 A schematic cross-sectional view of the central structure along line DD; Figure 18 This is a partial structural schematic diagram of a clamp conveying device provided in an embodiment of this application; Figure 19 for Figure 18 A partial side view of the auxiliary assembly in the embodiment; Figure 20 for Figure 19 A partial structural diagram of the sheath assembly after removing auxiliary components in the embodiment; Figure 21 This is a partial cross-sectional view of the cable assembly and clamp assembly of the clamp conveying device in a clamp connection state according to an embodiment of this application; Figure 22 This is a schematic diagram of the structure of the transmission head in one embodiment of this application; Figure 23 This is a schematic diagram of the clip assembly in one embodiment of this application; Figure 24 This is a schematic diagram of the connection structure between the transmission head and the pull buckle in one embodiment of this application; Figure 25 for Figure 24 A schematic diagram of the connection structure between the central drive head and the pull buckle from another perspective; Figure 26 for Figure 24 A side view of the connection structure between the central drive head and the pull buckle; Figure 27 For along Figure 26 A schematic diagram of a cross-sectional structure of the FF line; Figure 28 For along Figure 26 Another cross-sectional view of the FF line; Figure 29 For along Figure 26 A schematic diagram of the third cross-sectional structure of the FF line; Figure 30 For along Figure 26 A schematic diagram of the fourth cross-sectional structure of the middle FF line; Figure 31 For along Figure 26 Schematic diagram of the fifth sectional view structure of the middle FF line; Figure 32 This is a schematic diagram of a pull tab structure according to another embodiment of this application; Figure 33 This is a partial cross-sectional view of the cable assembly and clamp assembly of the clamp conveying device according to an embodiment of this application, in the clamp connection state. Figure 34 This is a schematic diagram of the protective shell structure of the clamp device in the embodiments of this application; Figure 35 This is a schematic diagram of the exploded structure of the parts of the clamp device during the assembly process in the embodiments of this application; Explanation of reference numerals in the attached drawings: 100 - Clamp conveying device; 110 - Sheath assembly; 111 - Sheath body; 112 - Transition cap; 1121 - Side wall; 1122 - Limiting step; 1123 - Limiting recess; 113 - Channel; 114 - Lateral hole; 115 - Proximal end; 116 - Distal end; 117 - Assembly hole; 1171 - Hole wall; 118 - Clearance groove; 120 - Connecting assembly; 121 - Elastic part; 1211 - Fixed end; 1212-Moving end; 122-Protruding tongue; 123-Bending part; 1221-Protruding shoulder; 130-Cable assembly; 131-Cable; 132-Transmission head; 1321-Conical head; 1322-Joint part; 1323-Base; 140-Auxiliary assembly; 141-Clamping part; 1411-Drive arm; 1412-Pressure head; 1413-Connecting end; 1414-Free end; 142-Main body; 1421-Relief groove; 150 - Handle mechanism; 200 - Clip assembly; 210 - Clamp; 211 - Clamping element; 211a - First clamping piece; 211b - Second clamping piece; 212 - Pull buckle; 2121 - Outer peripheral surface; 2122 - Receiving groove; 2123 - Groove; 213 - Holding unit; 2131 - Holding part; 2132 - First holding arm; 2133 - Second holding arm; 217 - Hinge seat; 214 - Slide groove; 215a - First protrusion; 215b - Second protrusion; 216a - First clearance notch; 216b - Second clearance notch; 220 - Clamp; 221 - Inner circumferential surface; 222 - Limiting groove; 223 - First section; 224 - Second section; 225 - Pin; 300 - Protective shell; 310 - Shell assembly; 311 - Receiving groove; 312 - Assembly groove; 3121 - Guide surface; 320 - Positioning assembly; 321 - First positioning part; 322 - Second positioning part. Detailed Implementation

[0031] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0032] In the description of this application, it should be understood that the terms "proximal" and "distal" are relative to the operator (doctor). "Proximal" refers to the end closer to the operator, and "distal" refers to the end further away from the operator relative to the "proximal," i.e., closer to the patient. The terms "upper," "lower," "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 application and simplifying the description, and do not indicate or imply that the device or apparatus 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 application. "Multiple" means two or more, and "at least one" can mean one, two, or more, unless otherwise explicitly specified. The terms "installed," "connected," and "linked" should be interpreted broadly, for example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two devices or the interaction between two devices, unless otherwise explicitly specified. The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.

[0033] As an introduction to this application, a hemostatic clip is first described, which consists of a clip assembly and a clip delivery device, both of which are a single unit for single use. While this design is simple and convenient, in practical use, the high cost due to the single-use nature of both the clip assembly and delivery device hinders large-scale application. Furthermore, because the clip assembly and delivery device are integrated, damage to the clip assembly necessitates replacement of the entire hemostatic clip, undoubtedly increasing medical costs. Moreover, the integrated design requires significant space for transportation and storage, further increasing transportation and storage costs.

[0034] Furthermore, current solutions for modular hemostatic clips also have several problems, such as patent CN100475165C, which has several issues: 1) In this technology, during the assembly of the clamp assembly, the protective shell needs to be pressed by hand to fix the clamp delivery device to the clamp assembly, and then the connector is pushed to complete the assembly. This method is relatively complicated, especially in the tense surgical environment, which makes it more difficult to operate and increases the difficulty of assembly. 2) The clips in this design cannot be repeatedly opened and closed (because there are no spring clips to connect the clip delivery device and the clip assembly in this design), which will greatly increase the difficulty and inconvenience of the operation in actual use.

[0035] 3) The clips in this design cannot be rotated, which will greatly increase the difficulty of the surgery and reduce the efficiency of the surgery in actual use.

[0036] 4) When replacing the second clip assembly, the clip assembly left from the previous one still remains at the front end of the connector, so it needs to be removed manually. Only after removal can the next clip assembly be assembled, which increases the difficulty of assembly and reduces the efficiency of the operation. In addition, as shown in patent CN103989500B, this solution has several problems: 1) The clamp assembly cannot be reloaded, which contradicts the concept of sustainable development in the current context of advocating green environmental protection. In particular, the EU's PPWR regulation requires reducing packaging waste and promoting the recycling and reuse of packaging materials. Therefore, if the solution described in CN103989500B is implemented, the remaining clamp delivery device will be discarded after the clamp assembly is used. This not only contradicts sustainable development but also increases the burden on patients.

[0037] In view of this, embodiments of this application provide a clamping device that can be used in endoscopic surgery to clamp and close tissues and wounds. Figure 1 As shown, the clamp device mainly includes a clamp conveying device 100 and a clamp assembly 200. The clamp conveying device 100 and the clamp assembly 200 are separate structures, and the clamp conveying device 100 is configured to connect to the clamp assembly 200, thereby enabling the conveying of the clamp assembly 200. Specifically, by treating the clamp assembly 200 and the clamp conveying device 100 as two independent parts, where the clamp assembly 200 is for single use and the clamp conveying device 100 is for reuse, product costs can be significantly reduced. Furthermore, it solves the problem of needing to replace the entire clamp device when the clamp assembly 200 is damaged. By making the clamp assembly 200 and the clamp conveying device 100 two independent parts, only the clamp assembly 200 needs to be replaced when it is damaged, instead of replacing the entire clamp device, allowing the clamp conveying device 100 to continue to be used, thereby reducing medical costs. Furthermore, it also solves the problem of the large space occupied during transportation and storage caused by the clamp assembly 200 and the clamp conveying device 100 being integrated. By setting the clamp assembly 200 and the clamp conveying device 100 as two independent parts, they can be transported and stored separately, thereby reducing transportation and storage costs.

[0038] Specifically, Figure 1The image shows the clamp delivery device 100 connected to the clamp assembly 200. The clamp delivery device 100 and clamp assembly 200 can also be separated for storage and transport. When needed, the clamp delivery device 100 and clamp assembly 200 are connected. For example, the clamp assembly 200 is housed and secured within a protective housing, and the clamp delivery device 100 is inserted into the housing to connect with the clamp assembly 200. Once connected, the clamp delivery device 100 can deliver the clamp assembly 200 through the endoscopic forceps channel into the patient's body to clamp the wound / tissue requiring treatment.

[0039] Please refer to the following first. Figure 2 and Figure 3 The clamp assembly 200 includes a clamp 210 and a clamp base 220, at least a portion of the clamp 210 being housed within the clamp base 220. The clamp 210 includes a clip element 211 for clamping tissue / wound and a pull tab 212 connected to the clip element 211.

[0040] Please refer to the following: Figure 4 , Figure 5 and Figure 6 This application also provides a clamp conveying device 100 for conveying clamp assemblies 200. In one embodiment of this application, the clamp conveying device 100 mainly includes a sheath assembly 110, a connecting assembly 120, and a cable assembly 130.

[0041] The sheath assembly 110 has a proximal end 115 and a distal end 116. The sheath assembly 110 is used to deliver the assembled clamp assembly 200, located at its distal end 116, through the endoscopic forceps channel into the patient. The sheath assembly 110 has a channel 113 and a lateral port 114. The channel 113 is a cavity formed within the sheath assembly 110, penetrating both the proximal end 115 and the distal end 116, giving the sheath assembly 110 a generally tubular structure. Thus, the channel 113 of the sheath assembly 110 can be used to pass through the cable assembly 130, and the sheath assembly 110 can guide and protect the cable assembly 130 passing through its channel 113. The lateral port 114 is formed on the sidewall 1121 of the sheath assembly 110 and can extend generally radially along the sheath assembly 110, or it can be extended at a desired angle. The lateral hole 114 communicates with the channel 113 and is disposed through the side wall 1121 of the sheath assembly 110.

[0042] The connecting component 120 is disposed within the channel 113 and is connected to the sheath assembly 110, meaning the connecting component 120 is mounted on the sheath assembly 110 and can move with the sheath assembly within the endoscopic forceps channel. The connecting component 120 is used to engage with the clamp seat 220 of the clamp assembly 200 to connect the clamp assembly 200 to the distal end 116 of the sheath assembly 110. Specifically, a portion of the connecting component 120 (such as the tongue 122) can protrude through the lateral hole 114 and extend beyond the sheath assembly 110 to engage with the clamp seat 220.

[0043] Please combine them together Figure 6 , Figure 7 , Figure 9 and Figure 10 The distal end 116 of the sheath assembly 110 can be inserted into the clamp 220, and the cable assembly 130 can move along the channel 113 toward the clamp 220 so that one end of the cable assembly 130 is connected to the clamp 210 of the clamp assembly 200. As the cable assembly 130 moves toward the clamp 220, it can compress the connecting assembly 120 so that a portion of the connecting assembly 120 protrudes from the lateral hole 114 out of the sheath assembly 110 and connects to the clamp 220.

[0044] Specifically, please refer to the following: Figure 6 and Figure 7 By driving the cable assembly 130, it can be moved along the channel 113 towards the proximal end 115 or the distal end 116 of the sheath assembly 110. As the cable assembly 130 moves towards the distal end 116, its front end can gradually move outside the channel 113, compressing the connecting assembly 120 located within the channel 113 in the process. Figure 7 As shown, the connecting assembly 120 is subjected to radial compressive force, and its tongue 122 can move radially outward and protrude through the lateral hole 114, thereby protruding outside the sheath assembly 110. Please refer to [further details omitted]. Figure 8 and Figure 9When assembling the clamp conveying device 100 and the clamp assembly 200, the distal end 116 of the sheath assembly 110 can be inserted into the clamp seat 220. The cable assembly 130 moves towards the side where the distal end 116 is located, pressing the connecting assembly 120 so that its protruding tongue 122 protrudes from the lateral hole 114 to the outside of the sheath assembly 110 and engages with the clamp seat 220. Optionally, as the distal end 116 of the sheath assembly 110 is inserted into the clamp seat 220, the lateral hole 114 also enters the inner cavity of the clamp seat 220. The protruding tongue 122 can be embedded into the limiting groove 222 provided on the inner circumferential surface 221 of the clamp seat 220 to achieve engagement with the clamp seat 220; or it can be engaged with the limiting boss provided on the clamp seat 220; or it can be inserted into the limiting hole opened on the clamp seat 220 to achieve engagement with the clamp seat 220. Please refer to the following: Figure 9 and Figure 10 As the cable assembly 130 moves toward the side where the distal end 116 is located, its front end gradually moves into the clamp 220, enabling it to connect with the clamp 210 of the clamp assembly 200. This allows the clamp 210 to be driven to open and close, completing the operations required for the surgery.

[0045] It is understood that in this embodiment, when the cable assembly 130 moves along the channel 113 into the distal end 116 clamp 220, it compresses the connecting assembly 120. The connecting assembly 120, under the compression of the cable assembly 130, allows a portion of its structure to protrude from the lateral hole 114 to the outside of the sheath assembly 110 and connect with the clamp 220. In other words, when connecting the clamp conveying device 100 to the clamp assembly 200, by controlling the movement of the cable assembly 130 towards the distal end 116, the clamp conveying device 100 and the clamp assembly 200 can be smoothly connected. Therefore, the clamp conveying device 100 and the clamp assembly 200 can be configured as separate structures, and then connected together when needed. The clamp conveying device 100 and the clamp assembly 200 can be transported and stored separately, reducing space occupation and transportation and storage costs. After the clamp assembly 200 is released, the clamp conveying device 100 can be connected to another clamp assembly 200 in the same way to enable the clamp conveying device 100 to be reused and reduce the cost of use.

[0046] Please refer to the following in order. Figure 12 , Figure 10 and Figure 9 In some embodiments, the cable assembly 130 is also movable along the channel 113 toward the proximal end 115 of the sheath assembly 110 to disengage from the clamp 210. Specifically, please refer to... Figure 12 , Figure 11 , Figure 10 , Figure 9 and Figure 8As the cable assembly 130 moves along the channel 113 toward the proximal end 115 of the sheath assembly 110, it drives the clamp 210 from an open state to a closed state, achieving clamping of the tissue / wound. Then, as the cable assembly 130 continues to move toward the proximal end 115, it gradually separates from the clamp 210 and gradually disengages from the inner cavity of the clamp seat 220, retracting from the distal end 116 back into the channel 113. As the cable assembly 130 moves toward the proximal end 115 of the sheath assembly 110, the compressive force on the connecting assembly 120 gradually decreases, causing the connecting assembly 120 to gradually retract into the sheath assembly 110 to separate from the clamp seat 220, completing the release of the clamp assembly 200. For details, please refer to the following sections. Figure 7 and Figure 6 As the cable assembly 130 moves toward the proximal end 115, the pressure it exerts on the connecting assembly 120 gradually decreases. This allows the tongue 122 of the connecting assembly 120 to move through the lateral hole 114 toward the side where the channel 113 is located, gradually approaching the central axis O and gradually retracting into the lateral hole 114 or even into the channel 113, thereby separating from the clamp 220. This allows the connected clamp assembly 200 to be released, enabling the clamp conveying device 100 to be reused and connected to another clamp assembly 200 for conveying that other clamp assembly 200.

[0047] like Figure 1 As shown, in some embodiments, the clamp delivery device 100 further includes a handle mechanism 150, which is connected to the proximal end 115 of the sheath assembly 110 and to the cable assembly 130. By manipulating the handle mechanism 150, the cable assembly 130 can be driven to move towards the proximal end 115 or towards the distal end 116. Thus, by manipulating the handle mechanism 150, the clamp delivery device 100 can be connected to the clamp assembly 200, and the clamp assembly 200 can be delivered into the patient's body along the endoscopic forceps channel, further enabling actions such as opening, closing, locking, and releasing the clamp assembly 200.

[0048] Please refer to it again. Figure 4 , Figure 5 and Figure 6In some embodiments, the sheath assembly 110 includes a sheath body 111 and a transition cap 112 arranged sequentially and interconnected from its proximal end 115 to its distal end 116. The sheath body 111 can be a spring tube, i.e., a tube structure formed by spirally winding metal wire. One end is connected to a handle mechanism 150, corresponding to the proximal end 115, and the other end is connected to the transition cap 112. The transition cap 112 can be made of metal or medical plastic, with its end furthest from the sheath body 111 corresponding to the distal end 116. A channel 113 extends from the proximal end 115 to the distal end 116 through the sheath body 111 and the transition cap 112; that is, the channel 113 has at least two parts: one part is the internal space of the sheath body 111, and the other part is the internal space of the transition cap 112, which are interconnected to form the channel 113. A cable assembly 130 passes through the sheath body 111 and the transition cap 112. In this embodiment, the lateral hole 114 is formed on the transition cap 112, and at least a portion of the connecting component 120 is located within the transition cap 112. By forming the lateral hole 114 on the transition cap 112, making it closer to the distal end 116, the connecting component 120 extending from the lateral hole 114 can be more easily connected to the clamp 220 when the distal end 116 is inserted into the clamp 220. Furthermore, the transition cap 112 is generally more rigid than the sheath body 111, and forming the lateral hole 114 on the transition cap 112 is easier than on the sheath body 111, significantly reducing the difficulty of processing.

[0049] Optionally, please combine them together. Figure 6 and Figure 9 The end of the transition cap 112 furthest from the sheath body 111 is the distal end 116 of the sheath assembly 110. The transition cap 112 has a limiting step 1122, and a lateral hole 114 is located on the side of the limiting step 1122 near the distal end 116. When the distal end 116 of the sheath assembly 110 is inserted into the clamp 220, the lateral hole 114 is located within the clamp 220, and the limiting step 1122 is opposite to the edge of the clamp 220. The edge of the clamp 220 is... Figure 9 The end face of the clamp 220 near the transition cap 112 has a limiting step 1122. This limiting step 1122, in conjunction with the edge of the clamp 220, restricts the distance the distal end 116 of the transition cap 112 is inserted into the cavity of the clamp 220. This allows for the alignment and positioning of the lateral hole 114 with the compatible assembly structure within the clamp 220. For example… Figure 9 The clamp 220 is shown to have a limiting groove 222 on its inner side. The limiting step 1122 and the edge of the clamp 220 are used to limit the movement, so that the position of the lateral hole 114 entering the inner cavity of the clamp 220 corresponds to the limiting groove 222, thereby improving the accuracy of the clamp conveying device 100 and the clamp assembly 200 assembly.

[0050] Please see Figure 6 In some embodiments, the cable assembly 130 includes a cable 131 and a drive head 132 connected together. The cable 131 is configured to drive the drive head 132 to move along the channel 113. The drive head 132 is configured to compress the connecting assembly 120 and to connect with the clamp 210. One end of the cable 131 can be connected to a handle mechanism 150, which drives the cable 131 to move. The drive head 132 is connected to the other end of the cable 131 and has structures for connecting with the clamp 210 and for compressing the connecting assembly 120. Optionally, the peripheral wall of the transmission head 132 is provided with a protruding portion (with a larger radial dimension) protruding towards the side wall 1121 of the sheath assembly 110. This protruding portion is used to press the connecting assembly 120. When the cable 131 moves towards the distal end 116, it pushes the transmission head 132 to move towards the distal end 116 together. The protruding portion on its peripheral wall contacts the connecting assembly 120 and presses the connecting assembly 120 as it moves, causing part of its structure to protrude outward from the side hole 114. Optionally, the front end of the transmission head 132 is provided with a bullet-shaped connecting structure, which is embedded into the receiving groove 2122 provided at the tail of the clamp 210 buckle 212 to achieve mutual locking connection.

[0051] Optionally, please combine Figure 21 and Figure 22 In some embodiments, the drive head 132 includes a cone 1321, a connecting portion 1322, and a base 1323. The cone 1321 is generally tapered and can be inserted into the latch 212 of the clamp 210 for connection with the clamp 210. The base 1323 is connected to the cable 131 and spaced apart from the cone 1321. The connecting portion 1322 is disposed between the base 1323 and the cone 1321, and the base 1323 is connected to the cone 1321 through the connecting portion 1322. The cross-section of the connecting portion 1322 perpendicular to the axial direction of the cable assembly 130 is non-circular. In some embodiments, the cross-section of the connecting portion 1322 perpendicular to the axial direction of the cable assembly 130 may also be circular. When the cone 1321 is inserted into the clamp 210, at least a portion of the clamp 210 is located between the cone 1321 and the base 1323 and is in contact with the connecting portion 1322. Because the joint 1322 is non-circular, and at least a portion of the clamp 210 is attached to the joint 1322, the cable assembly 130 can transmit torque to the clamp 210, thereby driving the clamp 210 to rotate and improving the ease and flexibility of operation. Specifically, the non-circular shape can be polygonal, such as square, triangle, hexagon, etc., or it can be D-shaped, elliptical, star-shaped, multi-toothed, etc., as long as it can cooperate with the clamp 210 to transmit torque. For example, Figure 27 As shown, the cross-section of the joint 1322 is rectangular; Figure 28 As shown, the cross-section of the joint 1322 is pentagonal; Figure 29 As shown, the cross-section of the joint 1322 is triangular; Figure 30 As shown, the cross-section of the joint 1322 is "+" shaped; Figure 31 As shown, the cross-section of the joint 1322 is gear-shaped.

[0052] Please refer to the following: Figure 6 , Figure 13 and Figure 14 In some embodiments, the connecting assembly 120 includes an elastic portion 121 and a protruding tongue portion 122. The elastic portion 121 has a fixed end 1211 and a movable end 1212 disposed opposite to each other. The fixed end 1211 is fixed to the sheath assembly 110, and the protruding tongue portion 122 is connected to the movable end 1212 and extends from the movable end 1212 toward the lateral hole 114. The fixed end 1211 is the end of the elastic portion 121 that is fixedly connected to the sheath assembly 110, and the movable end 1212 is the end that can move when the elastic portion 121 is compressed by the drive head 132 of the cable assembly 130. When the elastic portion 121 is not compressed, the movable end 1212 is closest to the central axis O. When the elastic portion 121 is compressed, the movable end 1212 moves radially away from the central axis O, causing the protruding tongue portion 122 to protrude outside the lateral hole 114. When the elastic portion 121 is not compressed, the protruding tongue 122 can be completely located within the channel 113, partially located within the lateral hole 114, or slightly protruding outside the lateral hole 114. In this embodiment, when the cable assembly 130 moves toward the clamp 220, the cable assembly 130 can compress the elastic portion 121 to cause elastic deformation, so that the movable end 1212 moves radially away from the central axis O, causing the protruding tongue 122 to protrude from the lateral hole 114 to the outside of the sheath assembly 110 and connect with the clamp 220. When the cable assembly 130 moves toward the side where the proximal end 115 is located, its compressive force on the elastic portion 121 gradually decreases, and the elastic deformation of the elastic portion 121 gradually recovers, causing the movable end 1212 to gradually approach the central axis O, thereby causing the protruding tongue 122 to retract toward the lateral hole 114, thus separating from the clamp 220. This way, the connection and separation of the clamp delivery device 100 and the clamp assembly 200 can be achieved simply by driving the cable assembly 130, making it easier for doctors to operate.

[0053] Optionally, the elastic part 121 can be a spring-like structure, which can be made of medical-grade metal or other medical-grade elastic materials. Furthermore, the elastic part 121 and the tongue part 122 can be an integral structure, that is, the two are integrally processed and formed.

[0054] Optionally, such as Figure 6 and Figure 13As shown, the elastic portion 121 extends in a curved manner from the fixed end 1211 to the movable end 1212. Specifically, from the fixed end 1211 to the movable end 1212, the elastic portion 121 extends in a curved manner with a tendency to approach the central axis O of the sheath assembly 110.

[0055] Optionally, the distance between the fixed end 1211 and the central axis O is greater than the distance between the movable end 1212 and the central axis O.

[0056] Optionally, such as Figure 14 As shown, the elastic part 121 extends in a straight line from the fixed end 1211 to the movable end 1212.

[0057] Please refer to it again. Figure 6 In some embodiments, the sheath assembly 110 further has a mounting hole 117 communicating with the channel 113, which can be formed on the transition cap 112. The connecting assembly 120 also includes a bending portion 123, which is connected to the fixed end 1211. The bending portion 123 is disposed within the mounting hole 117 and abuts against the hole wall 1171 of the mounting hole 117. By providing the bending portion 123 at the fixed end 1211 and utilizing the bending portion 123 to abut against the hole wall 1171 of the mounting hole 117, the assembly of the connecting assembly 120 and the sheath assembly 110 is simpler and the structure is more stable. The bending portion 123 can be a U-shaped structure formed by bending, which can more stably hold the mounting hole 1171 of the mounting hole 117 using its own elasticity, thereby improving the stability of the assembly. Optionally, the elastic portion 121, the tongue portion 122, and the bending portion 123 can be an integral structure, that is, the three are integrally formed.

[0058] Please refer to the following: Figure 13 , Figure 15 , Figure 16 and Figure 17 In some embodiments, the tongue 122 has a shoulder 1221 located inside the sheath assembly 110, i.e., within the channel 113. The shoulder 1221 can contact the sidewall 1121 of the sheath assembly 110 to limit the tongue 122. It can be understood that, as Figure 16 as well as Figure 17 As shown, the shoulder 1221 can limit the dimension L of the tongue 122 protruding from the lateral hole 114 to the outside of the sheath assembly 110. Specifically, the shoulder 1221 is a protruding structure provided on the periphery of the tongue 122, located within the channel 113. When the elastic part 121 is compressed and undergoes elastic deformation, the tongue 122 protrudes outward from the lateral hole 114, and the shoulder 1221 thereon can abut against the side wall 1121 of the sheath assembly 110, thereby limiting the dimension L of the tongue 122 protruding. Please refer again. Figure 9By limiting the size of the protruding tongue 122 by the shoulder 1221, the depth of the tongue 122 inserted into the limiting groove 222 is limited, which can reduce friction with the clamp 220 and improve the rotational freedom of the clamp assembly 200.

[0059] Please refer to it again. Figure 13 The tongue portion 122 has shoulders 1221 on both sides, which can abut against the opposite sides of the side hole 114 to improve the stability of the limiting. Optionally, the shoulders 1221 can also be configured as flange structures that surround the tongue portion 122 in the circumference.

[0060] In some embodiments, the sheath assembly 110 has a plurality of lateral holes 114 arranged circumferentially thereon, and the clamp delivery device 100 includes a plurality of connecting assemblies 120, each connecting assembly 120 corresponding to one lateral hole 114. When the cable assembly 130 moves toward the clamp seat 220, the elastic portion 121 of each connecting assembly 120 is compressed by the cable assembly 130 and undergoes elastic deformation. By providing a plurality of lateral holes 114 circumferentially in the sheath assembly 110, the plurality of connecting assemblies 120 can be connected to the clamp seat 220 by passing through the corresponding lateral holes 114 respectively, thereby improving the stability of the connection between the clamp delivery device 100 and the clamp assembly 200. Furthermore, each connecting component 120 corresponds to a side hole 114, meaning that the multiple connecting components 120 are also arranged circumferentially along the sheath assembly 110. This way, when the cable assembly 130 moves, it can simultaneously apply compressive force to the elastic portions 121 of the multiple circumferentially arranged connecting components 120, making the interaction force between the elastic portions 121 and the cable assembly 130 more balanced in the axial direction, maintaining the moving path of the cable assembly 130, reducing its deviation, and thereby improving the accuracy of the connection between the cable assembly 130 and the clamp 210.

[0061] It is understood that the number of connecting components 120 and side holes 114 is the same. Optionally, this number can be 1, 2, 3, 4 or even more, and can be specifically set as needed. Optionally, multiple connecting components 120 and multiple side holes 114 can be evenly arranged along the circumference of the sheath assembly 110.

[0062] In conjunction with the above embodiments, a plurality of mounting holes 117 can be provided on the sheath assembly 110, the plurality of mounting holes 117 being arranged in the circumferential direction of the sheath assembly 110, and the bent portion 123 of each connecting component 120 being installed in one mounting hole 117.

[0063] Please see Figure 18 , Figure 19 and Figure 20In some embodiments, the sheath assembly 110 further has clearance grooves 118 communicating with the channel 113. The clearance grooves 118 are located on opposite sides of the sheath assembly 110 in its radial direction and extend along the extension direction of the sheath assembly 110. Optionally, the clearance grooves 118 are formed on opposite sides of the sheath body 111. In this embodiment, the clamp conveying device 100 further includes an auxiliary assembly 140, which is movable along the extension direction of the sheath assembly 110. The auxiliary assembly 140 has a clamping portion 141, which is disposed opposite to the clearance grooves 118. It is understood that the clamping portion 141 includes two opposing parts, each corresponding to one clearance groove 118. The clamping portion 141 is configured to be able to enter the channel 113 through the clearance grooves 118 when compressed, to clamp the cable assembly 130.

[0064] Understandably, after the clamp 220 is fixed to the transition cap 112 of the sheath assembly 110, the slider on the handle mechanism 150 needs to be pushed to move the cable assembly 130 to the distal end 116, thereby squeezing the connecting assembly 120 and connecting the clamp conveying device 100 and the clamp 220 together. However, during the process of pushing the slider, because the sheath assembly 110 and the cable assembly 130 are relatively long, the slider is far from the distal end 116, making operation inconvenient. By setting the auxiliary assembly 140, the cable assembly 130 can be clamped through the clearance groove 118 by its clamping part 141, and the effect of moving the cable assembly 130 can be achieved by moving the auxiliary assembly 140, which greatly reduces the assembly difficulty and improves the assembly convenience.

[0065] For details, please refer to the following document again. Figure 19 The auxiliary assembly 140 includes a main body 142, which is sleeved on the sheath assembly 110 and can move along the extension direction of the sheath assembly 110. The clamping part 141 is connected to the main body 142. By providing the main body 142 sleeved on the sheath assembly 110, the sheath assembly 110 can guide the main body 142, thereby making the pushing direction of the auxiliary assembly 140 on the cable assembly 130 more accurate when moving, and making it easier to complete the assembly of the clamp conveying device 100 and the clamp assembly 200.

[0066] Optionally, such as Figure 19The main body 142 has a clearance groove 1421, which corresponds to the clearance groove 118. At least a portion of the clamping portion 141 is disposed within the clearance groove 1421, and the clamping portion 141 is configured such that at least a portion of it can pass through the clearance groove 1421 and enter the clearance groove 118 when compressed. By disposing at least a portion of the clamping portion 141 within the clearance groove 1421, a portion of the main body 142 is located at the front end of the clamping portion 141, and another portion is located at the rear end of the clamping portion 141. This allows the sheath assembly 110 to be fitted onto both the front and rear sides of the clamping portion 141, improving its movement stability. Furthermore, the clamping portion 141 and clearance groove 1421 can be directly stamped onto the main body 142 during processing.

[0067] In some embodiments, such as Figure 19 The clamping part 141 includes a drive arm 1411 and a pressure head 1412. The drive arm 1411 has a connecting end 1413 and a free end 1414 disposed opposite to each other. The connecting end 1413 is connected to the main body 142. From the connecting end 1413 to the free end 1414, at least a portion of the drive arm 1411 extends in a direction gradually away from the cable assembly 130. The pressure head 1412 is connected to the free end 1414 and extends from the free end 1414 toward the cable assembly 130. By pressing the drive arm 1411, the pressure head 1412 can be pressed onto the cable assembly 130 to clamp the cable assembly 130.

[0068] Accordingly, the clamping device provided in this application embodiment includes a clamp conveying device 100 and a clamp assembly 200, wherein the clamp conveying device 100 is used to convey the clamp assembly 200. This clamping device may have all the technical features and technical effects of the clamp conveying device 100 in the above embodiments, and will not be repeated here.

[0069] It should be noted that in the clamp device of this application embodiment, the clamp assembly 200 and the clamp conveying device 100 are configured as separate structures, and the two are connected together for use when needed.

[0070] For assembling the clamp assembly 200 and the clamp conveying device 100, the clamp device also includes, for example, Figure 34 The protective housing 300 shown is used to assemble the clamp assembly 200 and the clamp conveying device 100. The protective housing 300 includes a positioning component 320. The clamp assembly 200 can be housed within the protective housing 300, and the clamp conveying device 100 can be inserted into the protective housing 300 and positioned in cooperation with the positioning component 320 so as to be connected to the clamp assembly 200.

[0071] In some embodiments, please refer to the following: Figure 34 and Figure 35The protective shell 300 further includes: a shell assembly 310, the shell assembly 310 having a receiving groove 311 and an assembly groove 312 inside, the receiving groove 311 for placing the clamp assembly 200, and the assembly groove 312 for the clamp conveying device 100 to be inserted into the receiving groove 311 via it; a positioning assembly 320 connected to the shell assembly 310 and including a first positioning part 321 and a second positioning part 322 disposed opposite to each other, the first positioning part 321 and the second positioning part 322 being disposed between the receiving groove 311 and the assembly groove 312, the first positioning part 321 and the second positioning part 322 being used to cooperate with the sheath assembly 110 in the clamp conveying device 100 to position the sheath assembly 110 when the clamp conveying device 100 is inserted into the receiving groove 311.

[0072] In some embodiments, the groove wall of the assembly groove 312 near the opening of the shell assembly 310 is configured as a guide surface 3121. The guide surface 3121 is generally conical and can accurately guide the clamp conveying device 100 so that the clamp conveying device 100 can be accurately inserted into the protective shell 300.

[0073] In some embodiments, the transition cap 112 of the sheath assembly 110 is provided with a mating structure. The positioning of the sheath assembly 110 is achieved by the mating of the first positioning part 321 and the second positioning part 322 of the mating structure. Optionally, the mating structure can be a limiting recess 1123 provided on the transition cap 112.

[0074] Please refer to the following: Figure 2 and Figure 3 The clamp assembly 200 includes a clamp 210 and a clamp seat 220 that houses at least a portion of the clamp 210. The clamp 210 is configured to connect to the cable assembly 130. The inner circumferential surface 221 of the clamp seat 220 is provided with a limiting groove 222. The connecting assembly 120 can be embedded in the limiting groove 222 to connect with the clamp seat 220. By providing a shoulder 1221 on the tongue 122 of the connecting assembly 120, the depth of the tongue 122 extending out of the lateral hole 114 can be controlled by the shoulder 1221. This reduces the contact area between the tongue 122 and the groove wall of the limiting groove 222, lowers friction, and makes the clamp assembly 200 rotate more flexibly.

[0075] Please refer to it again. Figure 2 and Figure 3 In some embodiments, the clamp 210 includes a clamping element 211 and a pull tab 212 connected together. Please refer to... Figure 32 The pull tab 212 includes at least two retaining units 213 arranged around its central axis M, each retaining unit 213 having a retaining portion 2131 at its end away from the clip element 211. For example... Figure 9As shown, the drive head 132 of the cable assembly 130 can be inserted between at least two retaining portions 2131 of at least two retaining units 213, the retaining portions 2131 being used to limit the drive head 132 so that the drive head 132 is connected to the buckle 212.

[0076] Optionally, in Figure 32 In the illustrated embodiment, the pull tab 212 includes a hinge base 217 and three retaining units 213 connected to one end of the hinge base 217. The hinge base 217 is hinged to the clip element 211, and each retaining unit 213 has a retaining portion 2131. The three retaining units 213 are arranged at intervals around the central axis M, and a receiving groove 2122 is formed between the three retaining units 213, into which the conical head 1321 of the transmission head 132 can be inserted. The retaining portion 2131 is disposed at the opening 2123 of the receiving groove 2122, and all three retaining portions 2131 protrude radially inward along the pull tab 212. Please refer to... Figure 9 When the cone 1321 is inserted into the receiving groove 2122, the retaining part 2131 can be locked on the side of the cone 1321 near the base 1323 to limit the cone 1321.

[0077] Optionally, in Figures 21 to 27 In the illustrated embodiment, the pull tab 212 includes a hinge base 217 and two retaining units 213 connected to one end of the hinge base 217. The hinge base 217 is hinged to the clamping element 211. The two retaining units 213 are respectively disposed on both sides of the central axis M and spaced apart from each other. Each retaining unit 213 also includes a first retaining arm 2132 and a second retaining arm 2133 respectively connected to the hinge base 217. A retaining part 2131 is disposed on the side of the first retaining arm 2132 and the second retaining arm 2133 away from the hinge base 217 and connects the first retaining arm 2132 and the second retaining arm 2133. The hinge base 217 includes two sheet-like structures with pin holes, which are hinged to the clamping element 211. One sheet-like structure connects the first retaining arm 2132 of the two retaining units 213, and the other sheet-like structure connects the second retaining arm 2133 of the two retaining units 213.

[0078] like Figure 26 and Figure 27When the transmission head 132 is inserted between at least two retaining units 213, the retaining portion 2131 is located between the cone 1321 and the base 1323 of the transmission head 132 and is in contact with the connecting portion 1322. The cross section of the connecting portion 1322 perpendicular to the axial direction of the transmission head 132 is non-circular. In some embodiments, the cross section of the connecting portion 1322 perpendicular to the axial direction of the cable assembly 130 may also be circular. This allows the cable assembly 130 to transmit torque to the clamp 210, thereby driving the clamp assembly 200 to rotate. Specifically, the transmission head 132 drives the clamp assembly 200 to rotate relative to the connecting assembly 120, improving the convenience and flexibility of operation. Furthermore, the shoulder 1221 controls the depth of the tongue 122 extending out of the lateral hole 114, further improving the flexibility of rotation. Specifically, a gap for accommodating the mating portion 1322 is formed between the holding portions 2131 of the multiple holding units 213. The shape of this gap is generally non-circular, but it can also be circular and achieve torque transmission through an interference fit. The specific shape can be selected according to actual use. The non-circular shape can be polygonal, such as square, triangle, hexagon, etc., or it can be D-shaped, elliptical, star-shaped, multi-toothed, etc., as long as it can cooperate with the clamp 210 to transmit torque. For example, Figure 27 As shown, the cross-section of the joint 1322 is rectangular; Figure 28 As shown, the cross-section of the joint 1322 is pentagonal; Figure 29 As shown, the cross-section of the joint 1322 is triangular; Figure 30 As shown, the cross-section of the joint 1322 is "+" shaped; Figure 31 As shown, the cross-section of the joint 1322 is gear-shaped.

[0079] Please refer to it again. Figure 3 The internal space of the clamp 220 has a first segment 223 and a second segment 224 arranged sequentially along its axial direction. The first segment 223 is located on the side of the second segment 224 away from the clamping element 211, and the radial dimension R of the first segment 223 is greater than the radial dimension r of the second segment 224. Here, "radial dimension" refers to the dimension of the inner contour of the structure along a direction perpendicular to the central axis of the clamp assembly 200; this radial dimension is independent of the cross-sectional shape of the clamp assembly 200 (such as circular, polygonal, or irregular shape), and is based solely on its central axis. For example, if the internal space is cylindrical, the radial dimension is the length in the diameter direction; if the internal space is polygonal, the radial dimension is twice the vertical distance from the central axis to any side wall.

[0080] Please combine Figure 9 , Figure 21 and Figure 33 When the holding portion 2131 is located within the first section 223, the holding portions 2131 of at least two holding units 213 can be moved away from each other by the pressing force of the transmission head 132. When the clamp assembly 200 is in the position of... Figure 9 and Figure 33 When the device is in the closed state and fixed within the protective housing 300, the retaining part 2131 is located within the first section 223. The cable assembly 130 moves towards the distal end 116 of the sheath assembly 110, compressing the retaining part 2131 and causing the retaining units 213 to elastically deform. The retaining parts 2131 then move away from each other, allowing the cone 1321 of the transmission head 132 to engage with the retaining units 213 and connect to the pull tab 212. When the clip element 211 is locked, the retaining part 2131 is also located within the first section 223. The cable assembly 130 moves towards the proximal end 115 of the sheath assembly 110, compressing the retaining part 2131 and causing the retaining units 213 to elastically deform. The retaining parts 2131 then move away from each other, allowing the cone 1321 of the transmission head 132 to disengage from the pull tab 212 and release the clamp assembly 200. Furthermore, the cone head 1321 is designed with a tapered structure. When the transmission head 132 is inserted into the pull buckle 212, the tapered surface of the cone head 1321 contacts the pull buckle 212 first, which can play a guiding role. Therefore, the force required to insert the pull buckle 212 is very small, and it is relatively easy to insert the pull buckle 212. When the transmission head 132 is pulled out of the pull buckle 212, there is no tapered surface to guide it, so the pulling force is larger. This can ensure that the clamping element 211 enters the locking state.

[0081] exist Figure 33 In the embodiment shown, the transition cap 112 is also provided with a limiting recess 1123. When the clamp conveying device 100 is inserted into the protective shell 300, it can be positioned by the limiting recess 1123 of the transition cap 112 cooperating with the structure inside the protective shell 300.

[0082] Please combine Figure 10 When the retaining part 2131 is located within the second section 224, the inner circumferential surface 221 of the clamp 220 can contact the outer circumferential surface 2121 of the retaining unit 213 to prevent the retaining parts 2131 of at least two retaining units 213 from moving away from each other. In this state, the pull buckle 212 is constrained by the inner circumferential surface 221 of the clamp 220 and is difficult to deform sufficiently. Therefore, the cone head 1321 of the transmission head 132 is not easy to disengage from the pull buckle 212, thus making it difficult for the transmission head 132 to disengage from the pull buckle 212 prematurely. This effectively solves the clinical pain point problem—the clamping element 211 failing to clamp or breaking, improving the reliability of clamping, ensuring that the clamping element 211 can clamp larger wounds, and ensuring the stability of surgical operations. The same applies when releasing the clamp assembly 200. Figure 9 In the state shown, the retaining part 2131 of the buckle 212 is located in the first section 223. This part is not constrained by the inner circumferential surface 221, and is more likely to produce outward expansion deformation, that is, to move away from each other. In this state, the connection force between the transmission head 132 and the buckle 212 is smaller, and it is easier to release.

[0083] The buckle 212 is designed as an elastic structure, which allows it to undergo elastic deformation during the process of the cone 1321 being inserted into the buckle 212, thereby confining the cone 1321 within the buckle 212.

[0084] like Figure 2 As shown, the clip assembly 200 includes a first clip 211a and a second clip 211b hinged to the pull tab 212, both of which have a sliding groove 214. Figure 33 As shown, a pin 225 is provided inside the clamp 220, and the pin 225 passes through the slide groove 214. The slide groove 214 has an open position A, a closed position B, and a locked position C. When the pin 225 is in the open position A, the first clamping piece 211a and the second clamping piece 211b are open, that is, the clamping piece element 211 is in the open state; when the pin 225 is in the closed position B, the first clamping piece 211a and the second clamping piece 211b are closed, that is, the clamping piece element 211 is in the closed state; when the pin 225 is in the locked position C, the first clamping piece 211a and the second clamping piece 211b are locked.

[0085] Specifically, the cable assembly 130 moves the clip element 211 via the buckle 212, allowing the pin 225 to reciprocate between the open position A and the closed position B. The locking position C is located on the side of the closed position B away from the open position A. The first clip 211a has a first protrusion 215a in its groove 214, and the second clip 211b has a second protrusion 215b opposite to the first protrusion 215a in its groove 214. The first protrusion 215a and the second protrusion 215b are located between the locking position C and the closed position B. The cable assembly 130 moves the clip element 211 towards the proximal end 115 via the buckle 212, causing the pin 225 to press against the first protrusion 215a and the second protrusion 215b and move to the locking position C.

[0086] In some embodiments, the first clip 211a is provided with a first clearance notch 216a, and the second clips 211b are each provided with a second clearance notch 216b. The pin 225 presses against the first protrusion 215a and the second protrusion 215b, causing the first protrusion 215a to deform toward the first clearance notch 216a and the second protrusion 215b to deform toward the second clearance notch 216b. This makes it easier for the pin 225 to engage in the locking position C. When the pin 225 engages in the locking position C, the retaining portion 2131 of the latch 212 moves to the first section 223. The force required for the pin 225 to pass through the first protrusion 215a and the second protrusion 215b and engage in the locking position C is less than the force required for the transmission head 132 to disengage from the latch 212.

[0087] This application also provides an assembly method for the clamp device as described in any of the above embodiments, the assembly method comprising: Insert the clamp conveying device 100 into the protective housing 300 so that the positioning component 320 of the protective housing 300 cooperates with the clamp conveying device 100 to position the clamp conveying device 100. The handle mechanism 150 of the clamp conveying device 100 is operated so that the cable assembly 130 of the clamp conveying device 100 is inserted into the clamp seat 220 of the clamp assembly 200 and connected to the clamp 210. The clamp assembly 200 is housed in the protective shell 300 in a closed state. Assembly is completed by pulling the clamp delivery device 100 out of the protective housing 300, along with the clamp assembly 200. The clamp assembly 200 is housed in a closed state within the protective housing 300 to facilitate connection between the pull tab 212 and the drive head 132. Specifically, during the insertion of the sheath assembly 110 and the pull cable assembly 130 of the clamp delivery device 100 into the protective housing 300, the transition cap 112 of the sheath assembly 110 presses against the first positioning part 321 and the second positioning part 322, causing them to elastically deform and move away from each other. When the distal end 116 of the transition cap 112 is inserted into the receiving groove 311, the first positioning part 321 and the second positioning part 322 clamp the transition cap 112 due to the elastic restoring force, thus positioning it. Optionally, a limiting recess 1123 is provided on the transition cap 112, and the first positioning part 321 and the second positioning part 322 engage with the limiting recess 1123 for positioning.

[0088] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0089] The clamp conveying device 100 and clamp equipment provided in the embodiments of this application have been described in detail above, and specific examples have been used to illustrate the principles and implementation methods of this application. The description of the above embodiments is only for the purpose of helping to understand the technical solutions and core ideas of this application. Those skilled in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or make equivalent substitutions for some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A clamp conveying device, characterized in that, For conveying clamp assemblies, the clamp assembly and the clamp conveying device are configured as separate structures; the clamp conveying device includes: A sheath assembly having a channel and a lateral aperture, the channel extending through the proximal and distal ends of the sheath assembly, and the lateral aperture communicating with the channel; A connecting component is disposed within the channel and connected to the sheath assembly; A cable assembly is threaded through the channel; The cable assembly is capable of moving along the channel toward the distal end; When the cable assembly moves toward the distal end, the cable assembly can compress the connecting assembly so that a portion of the connecting assembly protrudes from the lateral hole to the outside of the sheath assembly to connect the clip assembly.

2. The clamp conveying device according to claim 1, characterized in that, The cable assembly is also capable of moving along the channel toward the proximal end of the sheath assembly; As the cable assembly moves toward the proximal end of the sheath assembly, the connecting assembly retracts toward the lateral hole.

3. The clamp conveying device according to claim 1 or 2, characterized in that, The connection component includes: The elastic part has a fixed end and a movable end that are disposed opposite to each other, and the fixed end is fixed to the sheath assembly; A protruding tongue is connected to the movable end and extends from the movable end toward the lateral hole; When the cable assembly moves toward the clamp, the cable assembly can compress the elastic part to cause it to elastically deform, thereby causing the tongue to protrude from the lateral hole to the outside of the sheath assembly.

4. The clamp conveying device according to claim 3, characterized in that, The sheath assembly has a central axis O; The distance between the fixed end and the central axis O is greater than the distance between the movable end and the central axis O.

5. The clamp conveying device according to claim 3, characterized in that, The tongue portion has a shoulder located within the sheath assembly; The shoulder can contact the sidewall of the sheath assembly.

6. The clamp conveying device according to claim 3, characterized in that, The sheath assembly also has an assembly hole communicating with the channel; The connecting component further includes a bending portion connected to the fixed end, the bending portion being disposed within the assembly hole and abutting against the hole wall of the assembly hole.

7. The clamp conveying device according to claim 3, characterized in that, The sheath assembly has a plurality of said lateral holes arranged circumferentially thereon; The clamp conveying device includes a plurality of the connecting components, and the tongue of each connecting component is provided corresponding to a lateral hole.

8. The clamp conveying device according to claim 1 or 2, characterized in that, The sheath assembly also has clearance grooves communicating with the channel, the clearance grooves being located on opposite sides of the sheath assembly in its radial direction and extending along the extension direction of the sheath assembly; the clamp conveying device further includes: An auxiliary assembly is configured to move along the extension direction of the sheath assembly. The auxiliary assembly has a clamping part, which is disposed opposite to the clearance groove. The clamping part is configured to be able to enter the channel through the clearance groove when squeezed, so as to clamp the cable assembly.

9. The clamp conveying device according to claim 8, characterized in that, The auxiliary assembly includes a main body that is fitted onto the sheath assembly and is movable along the extension direction of the sheath assembly; the clamping part is connected to the main body. The main body has a clearance groove, and the clearance groove is provided correspondingly to the avoidance groove; At least a portion of the clamping part is disposed within the clearance groove, and the clamping part is configured such that when compressed, at least a portion of it can pass through the clearance groove and enter the avoidance groove.

10. The clamp conveying device according to claim 9, characterized in that, The clamping part includes: A drive arm has a connecting end and a free end disposed opposite to each other, the connecting end being connected to the main body; from the connecting end to the free end, at least a portion of the drive arm extends in a direction gradually moving away from the cable assembly; A pressure head is connected to the free end and extends from the free end toward the cable assembly.

11. The clamp conveying device according to claim 1 or 2, characterized in that, The sheath assembly includes a sheath body and a transition cap arranged sequentially from its proximal end to its distal end and connected to each other. The cable assembly passes through the sheath body and the transition cap. The lateral hole is opened on the transition cap. At least a portion of the connecting assembly is located inside the transition cap.

12. The clamp conveying device according to claim 11, characterized in that, The end of the transition cap away from the sheath body is the distal end of the sheath assembly. The transition cap is provided with a limiting step, and the lateral hole is located on the side of the limiting step closer to the distal end.

13. The clamp conveying device according to claim 11, characterized in that, The cable assembly includes a connected cable and a drive head, the cable being configured to drive the drive head to move along the channel, and the drive head being configured to compress the connecting assembly.

14. The clamp conveying device according to claim 13, characterized in that, The transmission head includes: The cone-shaped tip is configured to be inserted into the clamp of the clamp assembly; The base is connected to the cable and spaced apart from the cone. The connecting part connects the base and the cone head; When the cone is inserted into the clamp, at least a portion of the clamp is located between the cone and the base, and is in contact with the connecting portion.

15. A clamping device, characterized in that, include: The clamp conveying device as claimed in any one of claims 1 to 14, and, A clamp assembly and a protective housing, the protective housing being used to assemble the clamp assembly and the clamp conveying device, the protective housing including a positioning component; The clamp assembly can be housed within the protective housing, and the clamp delivery device can be inserted into the protective housing and positioned in conjunction with the positioning assembly to connect with the clamp assembly.

16. The clamping device according to claim 15, characterized in that, The clamp assembly includes a clamp and a clamp seat that houses at least a portion of the clamp. The clamp is configured to connect to a cable assembly of the clamp conveying device. The inner circumferential surface of the clamp seat has a limiting groove, and a connecting assembly of the clamp conveying device can be embedded in the limiting groove to connect to the clamp seat.

17. The clamping device according to claim 16, characterized in that, The clamp includes a clamping element and a pull buckle connected to each other. The pull buckle includes at least two retaining units arranged around its central axis M. The retaining unit has a retaining portion at one end away from the clamping element. The drive head of the cable assembly can be inserted between the at least two retaining units, and the retaining part is used to limit the drive head so that the drive head is connected to the buckle.

18. The clamping device according to claim 17, characterized in that, The internal space of the clamp has a first section and a second section arranged sequentially along its axial direction. The first section is located on the side of the second section away from the clamping element, and the radial dimension R of the first section is greater than the radial dimension r of the second section. When the holding part is located within the first section, the holding parts of the at least two holding units can be moved away from each other by the squeezing force of the transmission head; When the retaining part is located within the second section, the inner circumferential surface of the clamp can contact the retaining unit to prevent the retaining parts of the at least two retaining units from moving away from each other.

19. The clamping device according to claim 17, characterized in that, A receiving groove is formed between the at least two holding units, and the transmission head can be inserted into the receiving groove; the holding part is disposed at the opening of the receiving groove and protrudes radially inward.

20. The clamping device according to claim 17, characterized in that, The pull tab also includes a hinge seat that is hinged to the clip element, and the retaining unit is disposed on the side of the hinge seat away from the clip element; The retaining unit further includes a first retaining arm and a second retaining arm that are respectively connected to the hinge seat. The retaining part is disposed on the side of the first retaining arm and the second retaining arm away from the hinge seat and connects the first retaining arm and the second retaining arm.

21. The clamping device according to claim 17, characterized in that, When the transmission head is inserted between the at least two retaining units, the retaining portion is located between the cone and the base of the transmission head and fits against the connecting portion.

22. The clamping device according to claim 21, characterized in that, The drive head can drive the clamp assembly to rotate relative to the connecting assembly.

23. The clamping device according to any one of claims 17 to 22, characterized in that, The buckle is configured as an elastic structure.

24. The clamping device according to claim 17, characterized in that, The clip element includes a first clip and a second clip that are hinged to the pull buckle, and both the first clip and the second clip are provided with a sliding groove; the clamp seat is provided with a pin, and the pin passes through the sliding groove; The slide has an open position A, a closed position B and a locked position C. The cable assembly drives the clamping element to move through the buckle, so that the pin can reciprocate between the open position A and the closed position B. In the open position A, the first clip and the second clip are open; in the closed position B, the first clip and the second clip are closed. The locking position C is located on the side of the closed position B away from the open position A. The first clip has a first protrusion in its groove, and the second clip has a second protrusion in its groove opposite to the first protrusion. The first protrusion and the second protrusion are located between the locking position C and the closed position B. The cable assembly drives the clip element to move towards the proximal end through the buckle, so that the pin presses the first protrusion and the second protrusion and moves to the locking position C. In the locking position C, the first clip and the second clip are locked.

25. The clamping device according to claim 24, characterized in that, The first clip has a first clearance notch, and the second clips each have a second clearance notch. The pin presses the first protrusion and the second protrusion, which can cause the first protrusion to deform toward the first clearance notch and the second protrusion to deform toward the second clearance notch.

26. The clamping device according to claim 15, characterized in that, The protective shell also includes: The housing assembly has an internal receiving slot and an assembly slot, the receiving slot for holding the clamp assembly, and the assembly slot for the clamp conveying device to be inserted into the receiving slot therethrough; The positioning component is connected to the shell component and includes a first positioning part and a second positioning part disposed opposite to each other. The first positioning part and the second positioning part are disposed between the receiving groove and the assembly groove. The first positioning part and the second positioning part are used to cooperate with the sheath assembly in the clamp conveying device to position the sheath assembly when the clamp conveying device is inserted into the receiving groove.

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