Clip conveyor and hemostatic clip

Abstract

The utility model discloses a clip conveyor and a hemostatic clip, and belongs to the field of medical instruments.In the clip conveyor, the length of each convex tongue part extending out of a lateral hole is forcibly limited to be the same fixed value through abutting fit between a convex shoulder and the inner side edge of the lateral hole; therefore, the extension length difference of each convex tongue part caused by elastic fluctuation or external interference is eliminated; meanwhile, due to the uniform extending state of the convex tongue parts arranged at intervals in the circumferential direction, the conveying deflection of the clamp assembly caused by single-side deflection is reduced, it is ensured that the clamp assembly is always subjected to multi-direction balance constraint in the conveying and releasing process, and the conveying stability and the rotating reliability are remarkably improved. In addition, the fixed extension length simplifies the synchronous control requirement for the connecting assembly in operation, and is particularly suitable for clip delivery in a high-precision medical scene.

Description

Technical Field

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

[0002] Hemostatic clips are common surgical instruments used in many surgeries, such as gastrointestinal and respiratory surgeries, to control bleeding. They are inserted into the body and then controlled to clamp blood vessels or tissues, thereby achieving hemostasis. Currently, the clip assembly is connected to the distal end of a clip delivery system, which delivers the assembly through the endoscopic forceps channel into the patient's body. However, during surgery, the clip assembly lacks sufficient rotational stability relative to the delivery system, significantly increasing the difficulty of the procedure. Utility Model Content

[0003] The purpose of this utility model is to provide a clamp conveyor to solve the technical problem of insufficient rotational stability of the clamp assembly relative to the clamp conveyor; another purpose of this application is to provide a hemostatic clamp.

[0004] Technical solution: The clamp conveyor described in this application includes:

[0005] The sheath assembly has multiple lateral holes on its circumferential sidewall;

[0006] Multiple connecting components are arranged circumferentially within the sheath assembly. Each connecting component includes a connected elastic portion and a tongue portion, and the tongue portion is provided with a shoulder that protrudes outward from its surface.

[0007] The tongue is movably inserted into the corresponding lateral hole, and when the connecting assembly is in the first position, the shoulder abuts against the inner edge of the lateral hole, such that the length of each tongue extending out of the lateral hole is limited to the same fixed value.

[0008] In some embodiments, the shoulders are disposed on opposite sides of the tongue, or the shoulders are disposed around the outer periphery of the tongue.

[0009] In some embodiments, the clamp conveyor further includes:

[0010] A support sleeve is disposed between the plurality of connecting components, the support sleeve being in contact with the elastic portion, for supporting the connecting components at the first position.

[0011] In some embodiments, the clamp conveyor further includes:

[0012] A connecting seat is disposed inside the sheath assembly and located on the side of the support sleeve near the proximal end of the sheath assembly. A plurality of connecting components are arranged at intervals around the connecting seat, and each connecting component is fixed to the connecting seat by the elastic part.

[0013] In some embodiments, the connecting component is configured to move between a first position and a second position when the elastic portion is compressed; in the second position, the tongue is closer to the central axis O of the sheath assembly than in the first position.

[0014] In some embodiments, the elastic portion has a fixed end and a movable end disposed opposite to each other. The fixed end is fixed inside the sheath assembly, and the protruding tongue is connected to the movable end and extends from the movable end toward the lateral hole. When the elastic portion is compressed, it can generate elastic deformation so that the movable end drives the protruding tongue to move.

[0015] In some embodiments, the sheath assembly further has an assembly hole, and the connecting assembly 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.

[0016] In some embodiments, the connecting component is configured in the second position when the elastic portion is not compressed.

[0017] In some embodiments, the clamp conveyor further includes:

[0018] A cable assembly extending through the sheath assembly, the cable assembly including a coupling head movable toward the distal end of the sheath assembly and compressing the elastic portion to move the tongue portion from the second position to the first position.

[0019] In some embodiments, the coupling head can also move toward the proximal end of the sheath assembly, and when the coupling head moves toward the proximal end, the tongue can move from the first position to the second position.

[0020] In some embodiments, the connecting component is configured at the first position when the elastic portion is not compressed.

[0021] In some embodiments, the sheath assembly includes:

[0022] A transition cap, wherein the lateral hole is disposed on the transition cap, and the transition cap is further provided with a first guide groove extending along its axial direction;

[0023] A control ring is movably fitted onto the transition cap, and the control ring has a first protrusion, which is disposed in the first guide groove;

[0024] The elastic portion is disposed in the channel of the transition cap and partially disposed in the first guide groove. When the control ring moves toward the proximal end of the sheath assembly, the first protrusion can compress the elastic portion.

[0025] In some embodiments, the transition cap is provided with a first limiting step;

[0026] The sheath assembly also includes a reset elastic element fitted onto the transition cap. The reset elastic element is located on the side of the control ring near the proximal end and is positioned between the first limiting step and the control ring.

[0027] In some embodiments, the transition cap further has a second guide groove extending axially thereon, and the control ring further has a second protrusion passing through the second guide groove and partially disposed in the channel; the clamp conveyor further includes:

[0028] A cable assembly, passing through the channel, is movable toward the proximal end of the sheath assembly and abuts against the second protrusion to push the control ring toward the proximal end.

[0029] Accordingly, the hemostatic clip described in the embodiments of this application includes:

[0030] The clamp conveyor as described in any of the above embodiments, and,

[0031] A clamp assembly, wherein the clamp conveyor is used to transport the clamp assembly.

[0032] In some embodiments, the clamp assembly includes a clamp seat with a mating portion. When the connecting assembly of the clamp conveyor is in a first position, the tongue of the connecting assembly can engage with the mating portion to connect with the clamp seat.

[0033] In some embodiments, the clamp assembly and the clamp conveyor are configured as separate structures.

[0034] Beneficial Effects: The clamp conveyor provided in this application includes: a sheath assembly with multiple lateral holes on its circumferential sidewall; multiple connecting assemblies arranged circumferentially at intervals within the sheath assembly, each connecting assembly including a connected elastic part and a tongue, the tongue having a shoulder protruding outward from its surface; the tongue is movably inserted into the corresponding lateral hole, and when the connecting assembly is in a first position, the shoulder abuts against the inner edge of the lateral hole, thus limiting the length of each tongue extending out of the lateral hole to the same fixed value. In the clamp conveyor of this application embodiment, the abutting cooperation between the shoulder and the inner edge of the lateral hole forcibly limits the length of each tongue extending out of the lateral hole to the same fixed value, thereby eliminating the difference in extension length caused by elastic fluctuations or external interference; at the same time, the uniform extension state of the tongues arranged circumferentially at intervals reduces the conveying skew of the clamp assembly caused by unilateral offset, so that the clamp assembly is always subject to multi-directional balanced constraint during conveying and releasing, significantly improving the stability and rotational reliability of the connection and conveying. In addition, the fixed extension length simplifies the synchronous control requirements of the connecting components during operation, making it particularly suitable for clip delivery in high-precision medical scenarios.

[0035] The hemostatic clip of this application embodiment can have all the technical features and effects of the above-mentioned clip delivery device, which will not be repeated here. Attached Figure Description

[0036] 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.

[0037] Figure 1 This is a schematic diagram of the hemostatic clip provided in the embodiments of this application;

[0038] Figure 2 This is a partial structural diagram of the clamp conveyor provided in Embodiment 1 of this application;

[0039] Figure 3 for Figure 2 Another perspective view of the partial structure of the clamp conveyor;

[0040] Figure 4 This is a partial structural diagram of the clamp conveyor provided in Embodiment 1 of this application;

[0041] Figure 5 for Figure 4 Another perspective view of the partial structure of the clamp conveyor;

[0042] Figure 6 for Figure 4 A side view of a partial structure of the middle clamp conveyor;

[0043] Figure 7 for Figure 6 A schematic cross-sectional view of the central structure along line AA;

[0044] Figure 8 This is a partial structural diagram of the clamp conveyor provided in Embodiment 2 of this application;

[0045] Figure 9 for Figure 8 A magnified schematic diagram of a portion of region A in the middle;

[0046] Figure 10 for Figure 9 A schematic cross-sectional view of the central structure along line BB;

[0047] Figure 11 This is a schematic diagram of the connection assembly of the clamp conveyor provided in Embodiment 2 of this application;

[0048] Figure 12 This is a partial structural diagram of the connection between the clamp conveyor and the clamp assembly provided in Embodiment 2 of this application;

[0049] Figure 13 for Figure 12 A cross-sectional view of the central structure along line CC.

[0050] Figure 14 for Figure 12 A cross-sectional view of the middle structure along the CC line in another state;

[0051] Figure 15 A schematic diagram of a coupling head in a clamp conveyor provided in an embodiment of this application;

[0052] Figure 16 This is a partial structural diagram of the connection between the clamp conveyor and the clamp assembly provided in Embodiment 3 of this application;

[0053] Figure 17 for Figure 16 A schematic cross-sectional view of the central structure along line DD;

[0054] Figure 18 The clamp conveyor provided in Embodiment 3 of this application is along Figure 16 A partial structural cross-sectional view of the middle DD line;

[0055] Figure 19 This is a partial structural diagram of the clamp conveyor provided in Embodiment 3 of this application;

[0056] Figure 20This is a schematic diagram of the transition cap in the clamp conveyor provided in Embodiment 3 of this application;

[0057] Figure 21 This is a schematic diagram of the control ring structure in the clamp conveyor provided in Embodiment 3 of this application;

[0058] Figure 22 This is a schematic diagram of the structure of the coupling head in the clamp conveyor provided in Embodiment 3 of this application;

[0059] Figure 23 This is a schematic diagram of the connecting assembly in the clamp conveyor provided in Embodiment 3 of this application;

[0060] Figure 24 for Figure 19 A schematic cross-sectional view of the central structure along line EE.

[0061] Figure 25 This is one of the partial cross-sectional schematic diagrams of the cable assembly in the clamp conveyor provided in Embodiment 3 of this application during the process of moving towards the proximal end;

[0062] Figure 26 This is a second partial cross-sectional schematic diagram showing the cable assembly in the clamp conveyor provided in Embodiment 3 of this application moving towards the proximal end;

[0063] Figure 27 This is a schematic diagram of the clip assembly in the hemostatic clip provided in the embodiments of this application;

[0064] Figure 28 for Figure 27 Cross-sectional view of the middle structure along line GG

[0065] Figure 29 A partial structural schematic diagram of a hemostatic clip provided in another embodiment of this application;

[0066] Figure 30 for Figure 29 Cross-sectional view of the middle structure;

[0067] Reference numerals: 100-Clamp conveyor; 110-Sheath assembly; 111-Sheath body; 112-Transition cap; 1121-Circumferential sidewall; 1122-Second limiting step; 1123-First guide groove; 1124-Second guide groove; 1125-First limiting step; 113-Channel; 114-Side hole; 115-Proximal end; 116-Distal end; 117-Assembly hole; 1171-Hole wall; 118-Reset elastic element; 119-Control ring; 1191-First protrusion; 1192-Second protrusion; 120-Connecting assembly; 121-Elastic part; 1211-Fixed end; 1212-Moving end; 1213- Extension section; 1214-Arched section; 122-Protruding tongue; 1221-Protruding shoulder; 123-Connecting seat; 1231-Through hole; 124-Bending part; 130-Cable assembly; 131-Cable body; 132-Connecting head; 1321-Conical head; 1322-Connecting part; 1323-Protruding ridge; 1324-Extension part; 140-Handle mechanism; 150-Support sleeve; 200-Clamp assembly; 210-Clamp; 211-Clamping piece; 212-Pull buckle; 2121-Outer peripheral surface; 2122-Receiving groove; 220-Clamping seat; 221-Inner peripheral surface; 222-Matching part; 223-First section; 224-Second section. Detailed Implementation

[0068] 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.

[0069] In the description of this application, it should be understood that the terms "proximal" and "distal" are relative to the operator (medical personnel). "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., the end closer to the patient during use. 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.

[0070] As an introduction to this application, a hemostatic clip is first described, which consists of a clip assembly and a clip delivery device. The clip assembly is connected to the distal end of the clip delivery device, and its rotation is not flexible, making it relatively difficult for doctors to control during surgical procedures. Furthermore, the clip assembly and clip delivery device are a single unit, intended for single use. While this design is simple and convenient, in practical use, the cost is high because both the clip assembly and delivery device are disposable, hindering large-scale product deployment. Moreover, since the clip assembly and delivery device are integrated, if the clip assembly is damaged during use, the entire hemostatic clip needs to be replaced, undoubtedly increasing medical costs. Additionally, because the clip assembly and delivery device are integrated, they require significant space for transportation and storage, further increasing transportation and storage costs.

[0071] In view of this, the clamp delivery device 100 and the hemostatic clamp having the clamp delivery device 100 provided in the embodiments of this application are intended to solve the above-mentioned technical problems.

[0072] Please see Figure 1 The hemostatic clip includes a clip delivery device 100 and a clip assembly 200, and in Figure 1In the illustrated hemostatic clip, the clip delivery device 100 and the clip assembly 200 are connected together. In some embodiments, the clip delivery device 100 and the clip assembly 200 can be configured as a single unit, connected together, and stored and transported together. During surgical use, the clip delivery device 100 is operated to deliver the clip assembly 200 into the patient's body via the endoscopic forceps channel, and the handle mechanism 140 of the clip delivery device 100 is operated to control the clip assembly 200 to perform actions such as opening, clamping, locking, and releasing tissue. Alternatively, in other embodiments, the clip delivery device 100 and the clip assembly 200 can also be configured as separate structures, that is, the clip delivery device 100 and the clip assembly 200 are two relatively independent parts that can be transported and stored separately. When needed, the clamp delivery device 100 can be operated to connect with the clamp assembly 200. The clamp assembly 200 can then be delivered into the patient's body via the endoscopic forceps channel using the clamp delivery device 100. The clamp delivery device 100 can then be operated to control the clamp assembly 200 to perform actions such as opening, clamping, locking, and releasing. After the clamp assembly 200 is released, the clamp delivery device 100 can be connected to another clamp assembly 200 in the same way, enabling repeated use and reducing operating costs. Designing them as separate units also solves the problem of needing to replace the entire hemostatic clamp when the clamp assembly 200 is damaged. By making the clamp assembly 200 and the clamp delivery device 100 two independent parts, only the clamp assembly 200 needs to be replaced when it is damaged, instead of replacing the entire hemostatic clamp, thus reducing medical costs. Furthermore, it also solves the problem of the clamp assembly 200 and the clamp delivery device 100 occupying a large amount of space during transportation and storage when they are integrated. By making the clamp assembly 200 and the clamp conveyor 100 two separate parts, they can be transported and stored separately, thereby reducing transportation and storage costs.

[0073] Please combine them together Figure 2 , Figure 3 and Figure 4 In the first embodiment of this application, the clamp conveyor 100 includes a sheath assembly 110 and a plurality of connecting assemblies 120.

[0074] like Figure 2 As shown, one end of the sheath assembly 110 is its proximal end 115, and the other end is its distal end 116. Please refer to... Figure 1The sheath assembly 110 has a proximal end 115 for connection to the handle mechanism 140 and a distal end 116 for connection to the clamp assembly 200. The sheath assembly 110 is used to deliver the clamp assembly 200, assembled at its distal end 116, through the endoscopic forceps channel into the patient. The sheath assembly 110 has a channel 113 and multiple lateral holes 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. The lateral holes 114 communicate with the channel 113 and are formed on the circumferential sidewall 1121 of the sheath assembly 110, penetrating the circumferential sidewall 1121. The multiple lateral holes 114 are arranged circumferentially along the sheath assembly 110. Optionally, the lateral hole 114 may extend generally radially along the sheath assembly 110, or it may be extended at a desired angle. The "circumferential direction" of the sheath assembly 110 refers to the circumferential distribution direction along its own extending direction (i.e., the longitudinal axis), and is independent of the cross-sectional shape of the sheath assembly 110. For example, when the sheath assembly 110 is cylindrical, the circumferential direction is a circular circumferential direction; when the sheath assembly 110 is polygonal (such as hexagonal), the circumferential direction is the circumferential direction in which its sides are connected sequentially.

[0075] Specifically, in Example 1, as Figure 3 As shown, the sheath assembly 110 includes a sheath body 111 and a transition cap 112 arranged sequentially and connected to each other from its proximal end 115 to its distal end 116. A lateral hole 114 is formed on the transition cap 112. 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 the handle mechanism 140, and the end connected to the handle mechanism 140 corresponds to the proximal end 115. The other end is connected to the transition cap 112. The transition cap 112 can be made of materials such as metal or medical-grade plastic, and its end away from the sheath body 111 can correspond to the distal end 116. A channel 113 extends from the proximal end 115 to the distal end 116, penetrating 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.

[0076] Please refer to the following: Figure 4 and Figure 5As shown, multiple connecting components 120 are arranged circumferentially within the sheath assembly 110. Each connecting component 120 includes an elastic portion 121 and a tongue portion 122, with the tongue portion 122 connected to the elastic portion 121. The tongue portion 122 is generally tongue-shaped, extending from the elastic portion 121 toward the lateral hole 114, and is movably inserted into the corresponding lateral hole 114. It should be noted that "movable" means that the tongue portion 122 can be displaced within the lateral hole 114 under the action of the elastic portion 121 or an externally applied force, and this displacement is a passive responsive movement, rather than an autonomous movement of the tongue portion 122. In Embodiment 1, when the operator releases the clamp assembly 200, the tongue portion 122 deforms due to the force applied by the operator, thus being able to displace within the lateral hole 114. The tongue 122 has a shoulder 1221 located within the sheath assembly 110, which protrudes outward relative to the surface of the tongue 122.

[0077] In Embodiment 1, the connecting component 120 is used to connect the sheath assembly 110 to the clamp seat 220 of the clip assembly 200, and in the connected state, the connecting component 120 is configured in a first position. Please refer to [the relevant documentation] for details. Figure 6 and Figure 7 When the connecting assembly 120 is in the first position, the tongue 122 penetrates the lateral hole 114, and the shoulder 1221 abuts against the circumferential sidewall 1121 at the inner edge of the lateral hole 114, thereby achieving a limit so that the length L of each tongue 122 extending out of the lateral hole 114 is limited to the same fixed value.

[0078] Thus, by abutting against the inner edge of the side hole 114, the length of each tongue 122 extending out of the side hole 114 is forcibly limited to the same fixed value, thereby eliminating the difference in extension length caused by elastic fluctuations or external interference among the tongues. At the same time, the uniform extension state of the tongues 122 arranged in a circumferential interval reduces the conveying skew of the clamp assembly 200 caused by unilateral offset, ensuring that the clamp assembly 200 is always subject to multi-directional balanced constraint during release, significantly improving the connection conveying stability and rotational reliability. In addition, the fixed extension length design simplifies the synchronous control requirements of the connection assembly 120 during operation, and is especially suitable for clamp delivery in high-precision medical scenarios.

[0079] like Figure 28 As shown, the clamp base 220 of the clamp assembly 200 is provided with a mating part 222. By abutting the shoulder 1221 against the inner edge of the side hole 114, the length of each tongue 122 extending out of the side hole 114 is forcibly limited to the same fixed value. This limits the depth of the tongue 122 embedded in the mating part 222, so that each tongue 122 can be balanced in multiple directions with the mating part 222, improving rotational reliability.

[0080] In some embodiments, the mating portion 222 can be a limiting groove formed on the inner peripheral surface 221 of the clamp 220. By limiting the length of the front end of the tongue 122 extending out of the lateral hole 114, there is a gap between the front end of the tongue 122 and the bottom wall of the groove of the mating portion 222, reducing the possibility of the tongue 122 abutting against the bottom wall of the groove of the mating portion 222, reducing the friction between the tongue 122 and the clamp 220, thereby greatly improving the rotational reliability when the clamp assembly 200 and the clamp delivery device 100 are connected, and effectively reducing the difficulty of surgical operation.

[0081] It is understandable that the "first position" is a specific working state of the connecting component 120 within the sheath assembly 110. Through the abutment relationship between the shoulder 1221 and the inner edge of the side hole 114, the length of the tongue 122 extending out of the side hole 114 is mechanically limited to the same fixed value, thereby ensuring that the ends of all the tongues 122 form a stable connection interface that precisely mates with the mating part 222 of the clamp 220 in the clamp assembly 200. The definition of the "first position" is based solely on the contact state between the shoulder 1221 and the circumferential sidewall 1121 at the inner edge of the lateral hole 114, and is unrelated to whether it is the initial position, the duration, or whether there are other positions. In some embodiments, the connecting component 120 may only have the first position, such as the full-connection state in Embodiment 1. In other embodiments, the connecting component 120 may be disengaged from the first position and moved to the second position, such as the retracted state, by external operation or deformation of the elastic part 121. However, the core technology is that the extension length of the tongue 122 is forcibly constrained to a fixed value to achieve a reliable connection only when it is in the first position.

[0082] Please refer to the following: Figures 2 to 4 In Embodiment 1, the tongue portion 122 has shoulders 1221 on both sides. When the connecting component 120 is in the first position, the shoulders 1221 on both sides abut against the circumferential sidewalls 1121 at the edges of the lateral holes 114 on both sides, providing a balanced support effect and improving the stability of the limit.

[0083] In other embodiments, the shoulder 1221 may also be a protruding structure such as a protrusion or a boss. Alternatively, the shoulder 1221 may also be a flange structure surrounding the outer periphery of the tongue 122. By setting the shoulder 1221 to surround the tongue 122, a balanced support effect can also be provided, and the stability of the limit can be improved.

[0084] Please refer to the following: Figure 2 and Figure 7In Embodiment 1, the clamp conveyor 100 further includes a support sleeve 150, which is disposed between multiple connecting components 120. The support sleeve 150 contacts the elastic portion 121 of each connecting component 120 to support each connecting component 120 in a first position. By uniformly abutting against the elastic portions 121 of the multiple connecting components 120, the support sleeve 150 provides a reverse support force to each elastic portion 121, counteracting the retraction tendency of the elastic portion 121 due to its own deformation. This forces all connecting components 120 to remain stably in the first position, ensuring that the shoulder 1221 always fits tightly against the edge of the side hole 114, preventing the tongue 122 from accidentally retracting due to elastic fluctuations or external interference. At the same time, the circumferential distribution characteristics of the support sleeve 150 make the force on each connecting component 120 uniform, further eliminating the difference in the extension length of the tongue 122 caused by the deviation of the support force on one side, and improving the synchronicity and alignment of the cooperation between the multiple tongues 122 and the clamp 220.

[0085] Please refer to the following: Figure 5 and Figure 7 The clamp conveyor 100 also includes a connecting seat 123, which is disposed within the sheath assembly 110 and located on the side of the support sleeve 150 near the proximal end 115 of the sheath assembly 110. Multiple connecting components 120 are spaced around the connecting seat 123, and each connecting component 120 is fixed to the connecting seat 123 by an elastic portion 121. By fixing the elastic portions 121 of the multiple connecting components 120 to the same base, the connecting seat 123 forms a radially symmetrical connection structure centered on the connecting seat 123, forcibly constraining the circumferential relative position of each connecting component 120. This, in conjunction with the support sleeve 150, ensures that all connecting components 120 are stably positioned in the first position under the support of the support sleeve 150, guaranteeing a high degree of consistency in the extension length of the tongue 122 and reducing the deviation or local retraction of the tongue 122. In addition, the integrated design of the connector 123 simplifies the assembly process, reduces the cumulative tolerance caused by the independent fixing of multiple connecting components 120, and further enhances the overall structural rigidity and motion accuracy of the clamp conveyor 100.

[0086] In Embodiment 1, the clamp conveyor 100 and the clamp assembly 200 are connected as a whole, such as... Figure 1 As shown, the clamp conveyor 100 also includes a handle mechanism 140 and a cable assembly 130. Figure 1 Not shown, please refer to Figure 8 (Illustrative image) The handle mechanism 140 is connected to the proximal end 115 of the sheath assembly 110 and is connected to the cable assembly 130. The cable assembly 130 is connected to the clamp 210 of the clip assembly 200 (see [reference]). Figure 28The sheath assembly 110 is connected to the clamp seat 220 of the clamp assembly 200 via the connecting assembly 120. The cable assembly 130 can be driven by the operating handle mechanism 140 to move towards the proximal end 115 or the distal end 116, thereby enabling the clamp 210 of the clamp assembly 200 to open, close, and lock, and also enabling the release of the clamp assembly 200. The cable assembly 130 is disposed within the channel 113 and passes through the through hole 1231 of the connecting seat 123 and the support sleeve 150.

[0087] In some other embodiments, the clamp conveyor 100 and the clamp assembly 200 can also be configured as separate structures. The connecting assembly 120 is configured to allow the tongue 122 to move between a first position and a second position when the elastic part 121 is compressed, with the second position being closer to the central axis O of the sheath assembly 110 than the first position. Thus, the tongue 122 can move under the influence of the elastic part 121, connecting with the clamp seat 220 at the first position and disengaging from the clamp seat 222 at the second position. By configuring the connecting assembly 120 as described above, the clamp conveyor 100 and the clamp assembly 200 can be configured as separate structures, allowing for separate transportation and storage of the clamp conveyor 100 and the clamp assembly 200, reducing space occupation and transportation and storage costs.

[0088] Please refer to the following: Figure 8 , Figure 9 and Figure 10 In embodiment two, the cable assembly 130 includes a cable body 131 and a connecting head 132. The cable body 131 is configured to drive the connecting head 132 to move along the sheath assembly 110. The connecting head 132 is configured to connect with the clamp 210 of the clamp assembly 200 to control the clamp 210 to open, close, and lock. Specifically, one end of the cable body 131 can be connected to the handle mechanism 140. Figure 1 The hemostatic clip is shown to have a handle mechanism 140 connected to it, and a coupling head 132 connected to the other end of the cable body 131. The coupling head 132 is provided with a structure for cooperating with the clamp 210 of the clip assembly 200.

[0089] exist Figure 10 In the indicated state, the coupling head 132 of the cable assembly 130 does not compress the elastic portion 121 of the connecting assembly 120. In this case, the connecting assembly 120 is in the second position, and the tongue portion 122 is retracted into the lateral hole 114. Figure 13In the indicated state, the connecting head 132 presses against the elastic portion 121, causing the connecting assembly 120 to move to the first position. At this time, the protruding tongue 122 penetrates through the side hole 114 and extends outside the side hole 114. The length of each protruding tongue 122 extending out of the side hole 114 is limited to the same fixed value, enabling balanced constraint on the clamp 220 in multiple directions. The first position is farther from the central axis O of the sheath assembly 110 than the second position.

[0090] The distal end 116 of the sheath assembly 110 is inserted into the clamp 220. The operating handle mechanism 140 drives the cable body 131 to move along the sheath assembly 110 towards its distal end 116, and drives the connecting head 132 to extend into the clamp 220 and connect with the clamp 210. Thus, by controlling the cable body 131 to move via the operating handle mechanism 140, the clamp 210 can be controlled to perform opening, clamping, and locking actions, and the clamp assembly 200 can also be released.

[0091] Optionally, such as Figure 15 As shown, the front end of the head 132 is provided with a bullet-shaped cone 1321, which is inserted into the receiving groove 2122 provided at the tail of the clamp 210 pull buckle 212 to achieve mutual locking connection. Specifically, Figure 15 The connecting head 132 shown includes a cone head 1321, a connecting portion 1322, and an extension 1324. The cone head 1321 is generally tapered and can be inserted into the latch 212 of the clamp 210 for connection with the clamp 210. The extension 1324 is connected to the cable body 131 and spaced apart from the cone head 1321. The connecting portion 1322 is disposed between the extension 1324 and the cone head 1321, and the extension 1324 is connected to the cone head 1321 through the connecting portion 1322. The cross section of the connecting portion 1322 perpendicular to the axial direction of the cable assembly 130 (i.e., perpendicular to the central axis O) is non-circular. When the cone head 1321 is inserted into the clamp 210, at least a portion of the clamp 210 is located between the cone head 1321 and the extension 1324 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.

[0092] Please refer to the following: Figure 10 and Figure 11As shown, in Embodiment 2, the elastic part 121 has a fixed end 1211 and a movable end 1212 disposed opposite to each other. The fixed end 1211 is fixed inside the sheath assembly 110, and the protruding tongue 122 is connected to the movable end 1212 and extends from the movable end 1212 toward the lateral hole 114. The elastic part 121 can generate elastic deformation when squeezed by the coupling head 132, so that the movable end 1212 drives the protruding tongue 122 to move to the first position. The fixed end 1211 is the end of the elastic part 121 that is fixed relative to the sheath assembly 110, and the movable end 1212 is the end that can move when the elastic part 121 is squeezed by the coupling head 132. The protruding tongue 122 extends from the movable end 1212 toward the lateral hole 114. Optionally, when the elastic part 121 is not compressed, the protruding tongue 122 may be located inside the channel 113 and toward the lateral hole 114, that is, the protruding tongue 122 is completely located on the side of the lateral hole 114 near the channel 113; or a part of the structure of the protruding tongue 122 is located inside the channel of the lateral hole 114; or a part of the structure of the protruding tongue 122 is located on the side of the lateral hole 114 away from the channel 113, that is, slightly protruding outside the lateral hole 114.

[0093] Optionally, the elastic part 121 can be an elastic spring structure, which can be made of medical metal material or other medical elastic material.

[0094] Optionally, the elastic part 121 and the tongue part 122 can be an integral structure, formed by integral bending of an elastic material.

[0095] In Embodiment 2, the shoulder 1221 is provided on the opposite sides of the tongue 122 and protrudes to both sides relative to the surface of the tongue 122.

[0096] like Figure 10 As shown, the elastic portion 121 extends in a curved manner from the fixed end 1211 to the movable end 1212. Specifically, the distance between the fixed end 1211 and the central axis O is less than the distance between the movable end 1212 and the central axis O.

[0097] like Figure 10As shown, in Embodiment 2, the sheath assembly 110 also has an assembly hole 117 communicating with the channel 113. Optionally, the assembly hole 117 can be formed on the transition cap 112. The connecting assembly 120 also includes a bending portion 124, which is connected to the fixed end 1211. The bending portion 124 is disposed within the assembly hole 117 and abuts against the hole wall 1171 of the assembly hole 117. By providing the bending portion 124 at the fixed end 1211 and utilizing the bending portion 124 to abut against the hole wall 1171 of the assembly hole 117, the assembly of the elastic portion 121 is made more stable. The bending portion 124 can be a U-shaped structure formed by bending, which, through its own elasticity, can more stably hold the assembly portion 1171 against the hole wall 1171 of the assembly hole 117, thereby improving the stability of the assembly.

[0098] Please combine Figure 28 As shown, the internal space of the clamp 220 has a first section 223 and a second section 224 arranged sequentially along its axial direction. The first section 223 is located on the side of the second section 224 away from the clamp piece 211, and the radial dimension R of the first section 223 is greater than the radial dimension r of the second section 224. Figure 12 With the clamp assembly 200 in a closed state, it can be fixedly placed inside the protective housing (not shown). Then, the clamp conveyor 100 is inserted into the protective housing, causing the distal end 116 of the transition cap 112 of its sheath assembly 110 to insert into the internal space of the clamp base 220. (As shown...) Figure 10 and Figure 13 The cable body 131 drives the coupling head 132 to move along the sheath assembly 110 toward the clamp 220. The coupling head 132 can contact and squeeze the elastic part 121 to cause elastic deformation, thereby displacing the protruding tongue 122 to move to the first position, so that the protruding tongue 122 and the mating part 222 of the clamp 220 engage with each other. In this state, at least a portion of the buckle 212 is located in the first section 223. Since the radial dimension of the first section 223 is large, the coupling head 132 can squeeze the buckle 212 to expand the portion of it within the first section 223, so the coupling head 132 can be more easily inserted into the receiving groove 2122 of the buckle 212.

[0099] When the clip 211 is locked and the clip assembly 200 is released, at least a portion of the pull tab 212 is also located within the first section 223. The cable assembly 130 moves toward the proximal end 115 of the sheath assembly 110, which can compress the pull tab 212, causing it to elastically deform and expand. Therefore, the cone head 1321 of the coupling head 132 can disengage from the pull tab 212, releasing the clip assembly 200. Furthermore, the cone head 1321 is designed with a tapered structure. When the coupling head 132 is inserted into the pull tab 212, the tapered surface of the cone head 1321 contacts the pull tab 212 first, which can play a guiding role. Therefore, the force required to insert the pull tab 212 is very small, and it is relatively easy to insert the pull tab 212. When the coupling head 132 is pulled out of the pull tab 212, there is no tapered surface to guide it, so the force required to pull it out is larger. This ensures that the clip 211 enters the locked state.

[0100] Here, "radial dimension" refers to the dimension of the inner contour of the structure along a direction perpendicular to the central axis of the clip assembly 200; this radial dimension is independent of the cross-sectional shape of the clip assembly 200 (such as circular, polygonal, or irregular shape), and is based solely on its central axis. For example, when the internal space is cylindrical, the radial dimension is the length in the diameter direction; when the internal space is polygonal, the radial dimension is twice the vertical distance from the central axis to any side wall.

[0101] like Figure 14 The pull tab 212 is located outside the first section 223 and at least partially within the second section 224. In this state, the outer peripheral surface 2121 of the pull tab 212 is constrained by the inner peripheral surface 221 of the clamp 220, making it difficult to generate sufficient deformation. This results in a larger connection force between the connecting head 132 and the pull tab 212, making it difficult for the cone head 1321 of the connecting head 132 to detach from the pull tab 212. Therefore, it is difficult for the connecting head 132 to detach from the pull tab 212 prematurely, thus effectively solving the clinical pain point problem—the clamp 211 failing to clamp or breaking, improving the reliability of clamping, ensuring that the clamp 211 can clamp larger wounds, and ensuring the stability of surgical operations. When releasing the clamp assembly 200, it is also as follows... Figure 13 In the state shown, the buckle 212 is located within the first section 223. This part is not constrained by the inner circumferential surface 221, making it easier to generate outward expansion deformation. In this state, the connection force between the coupling head 132 and the buckle 212 is smaller, making it easier to release.

[0102] Please refer to the following: Figure 4 , Figure 10 and Figure 13As shown, 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 is provided with a second limiting step 1122, and the lateral hole 114 is located on the side of the second 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 second limiting step 1122 is opposite to the edge of the clamp 220. The edge of the clamp 220 is... Figure 13 The end face of the clamp 220 near the transition cap 112 has a second limiting step 1122. This second limiting step 1122, in conjunction with the edge of the clamp 220, limits the distance the distal end 116 of the transition cap 112 can be inserted into the cavity of the clamp 220. This allows the lateral hole 114 to be aligned and positioned with the corresponding assembly structure within the clamp 220. For example… Figure 13 The clamp 220 is shown to have a mating part 222 on its inner side. The second limiting step 1122 and the edge of the clamp 220 are mated and limited, so that the position of the lateral hole 114 entering the inner cavity of the clamp 220 corresponds to the mating part 222, thereby improving the accuracy of the assembly of the clamp conveyor 100 and the clamp assembly 200.

[0103] Please refer to the following: Figure 16 , Figure 17 and Figure 18 In Embodiment 3 of this application, the difference from Embodiment 2 is that when the connecting component 120 is not compressed, it is configured in a first position, in which the tongue 122 of the connecting component 120 can cooperate with the mating part 222 of the clamp seat 220 to connect the clamp conveyor 100 and the clamp assembly 200 together.

[0104] like Figure 19 As shown, in Embodiment 3, the sheath assembly 110 includes a transition cap 112 and a control ring 119, the control ring 119 being movably fitted onto the transition cap 112.

[0105] like Figure 20 As shown, the channel 113 passes through the transition cap 112 and is used to pass through the cable assembly 130. The lateral hole 114 is provided on the transition cap 112. The transition cap 112 is also provided with a first guide groove 1123 extending along its axial direction. The first guide groove 1123 is provided on the circumferential sidewall 1121 of the transition cap 112 and communicates with the channel 113.

[0106] like Figure 21 As shown, the control ring 119 has a first protrusion 1191. Specifically, the first protrusion 1191 is located on the inner side of the control ring 119 and extends radially inward. Please refer to... Figure 18The first protrusion 1191 is disposed in the first guide groove 1123. The control ring 119 is configured to move along the axial direction of the transition cap 112 and drive the first protrusion 1191 to move along the first guide groove 1123.

[0107] Alternatively, the physician may manually manipulate the control ring 119 directly to move it axially on the transition cap 112, or in some embodiments, the physician may drive the control ring 119 to move by manipulating the handle mechanism 140 and using the movement of the cable assembly 130 (described in detail below).

[0108] like Figure 18 As shown, the elastic portion 121 of the connecting assembly 120 is disposed in the channel 113 of the transition cap 112, and part of it protrudes into the first guide groove 1123, thus partially disposed within the first guide groove 1123. When the control ring 119 moves toward the proximal end 115 of the sheath assembly 110, the first protrusion 1191 can compress the elastic portion 121, allowing the connecting assembly 120 to move from a first position to a second position. In the second position, the distance between the connecting assembly 120 and the central axis O is less than the distance in the first position, that is, the tongue portion 122 retracts into the lateral hole 114.

[0109] Specifically, in combination Figure 18 and Figure 23 As shown, the elastic part 121 includes an arched section 1214 and an extension section 1213. The arched section 1214 is disposed in the first guide groove 1123, and the extension section 1213 is disposed in the channel 113 of the transition cap 112 and connects the arched section 1214 and the protruding tongue 122. The first protrusion 1191 can squeeze the arched section 1214 to move the connecting assembly 120 from the first position to the second position.

[0110] like Figure 20 As shown, the transition cap 112 is provided with a first limiting step 1125; the sheath assembly 110 also includes a reset elastic element 118 sleeved on the transition cap 112. The reset elastic element 118 is located on the side of the control ring 119 near the proximal end 115, and is positioned between the first limiting step 1125 and the control ring 119. When the control ring 119 moves toward the proximal end 115, it can compress the reset elastic element 118, causing it to undergo elastic deformation. The resulting elastic restoring force can compress the transition cap 112 and the control ring 119 respectively, thereby causing the control ring 119 to move toward the distal end 116 and return to its initial position, and then the connecting assembly 120 returns to the first position. Providing the first limiting step 1125 on the transition cap 112 also facilitates processing and assembly.

[0111] like Figure 20As shown, the transition cap 112 also has a second guide groove 1124 extending along its axial direction, and the second guide groove 1124 and the first guide groove 1123 are arranged circumferentially on the transition cap 112. Figure 21 As shown, the control ring 119 also has a second protrusion 1192, which passes through the channel 113 of the second guide groove 1124 and the transition cap 112. Please refer to the diagram. Figure 24 , Figure 25 as well as Figure 26 As shown, during the movement of the cable assembly 130 along the sheath assembly 110 toward its proximal end 115 ( Figure 25 and Figure 26 (As shown by the right arrow), the cable assembly 130 can abut against the second protrusion 1192 to push the control ring 119 toward the proximal end 115, so that the first protrusion 1191 of the control ring 119 can squeeze the arched section 1214 of the connecting assembly 120, causing the connecting assembly 120 to move to the second position.

[0112] In Embodiment 3, there are multiple first guide grooves 1123 and multiple second guide grooves 1124, which are arranged circumferentially along the transition cap 112. Correspondingly, there are multiple first protrusions 1191 and multiple first guide grooves 1123, and they correspond one-to-one; there are also multiple second protrusions 1192 and multiple second guide grooves 1124, which also correspond one-to-one. The first protrusions 1191 and second protrusions 1192 are arranged alternately circumferentially, as are the first guide grooves 1123 and second guide grooves 1124. This arrangement improves the stability of the movement of each component, thereby ensuring operational stability.

[0113] In Example 3, please refer to Figure 22As shown, the coupling head 132 of the cable assembly 130 can be an integral structure, comprising a conical head 1321, a coupling portion 1322, a protruding ridge portion 1323, an extension portion 1324, and a connecting portion 1325 connected in sequence. The conical head 1321 is cone-shaped, similar to a bullet head structure, and can be inserted into the clamp 210 of the clamp assembly 200. The protruding ridge portion 1323 is spaced apart from the conical head 1321, and when the protruding ridge portion 1323 moves toward the proximal end 115, it can abut against the second protrusion 1192. The coupling portion 1322 connects the protruding ridge portion 1323 and the conical head 1321, and the cross section of the coupling portion 1322 perpendicular to the axial direction of the cable assembly 130 is non-circular; when the conical head 1321 is inserted into the clamp 210, at least a portion of the clamp 210 is located between the conical head 1321 and the protruding ridge portion 1323, and is in contact with the coupling portion 1322. The non-circular joint 1322 allows for smooth torque transmission with the clamp 210, facilitating the rotation of the clamp assembly 200 and simplifying operation. The extension 1324 is set to an appropriate length as needed, and the maximum radial dimension of the protruding ridge 1323 is larger than that of the extension 1324. The connecting portion 1325 is used to connect with the cable body 131.

[0114] During the connection of the clamp conveyor 100 and the clamp assembly 200, the pull cable assembly 130 is first moved towards the proximal end 115 via the handle mechanism. The coupling head 132 of the pull cable assembly 130 pushes the control ring 119 towards the proximal end 115, causing the first protrusion 1191 to press against the elastic part 121, moving the protruding tongue 122 to the second position. Then, the distal end 116 of the sheath assembly 110 is inserted into the clamp seat 220. The pull cable assembly 130 is then moved towards the proximal end 115 via the handle mechanism again, causing the control ring 119 to reset, releasing the elastic part 121. This allows the protruding tongue 122 to return to its initial first position, where it can be inserted into the mating part 222, thus connecting the sheath assembly 110 and the clamp seat 220 together. Simultaneously, as the pull cable assembly 130 moves towards the proximal end 115, its coupling head 132 can be inserted into the pull buckle 212 of the clamp 210, completing the assembly. The connection between the sheath assembly 110 and the clamp 220, and between the cable assembly 130 and the clamp 210, is completed synchronously, making operation simpler. The clamp 210 can be opened and closed by driving the cable assembly 130 through the handle mechanism, and the clamp assembly 200 can be released by driving the cable assembly 130 to move towards the proximal end 115.

[0115] It is understood that the number of connecting components 120 is the same as the number of side holes 114. Optionally, this number can be 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. Here, "circumferential" refers to any closed loop around the center line of the sheath assembly 110 in a plane perpendicular to the extension direction of the sheath assembly 110.

[0116] 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 each connecting component 120 being installed in one mounting hole 117.

[0117] Accordingly, such as Figure 1 , Figure 27 and Figure 28 As shown, this application embodiment also provides a hemostatic clip, which includes a clip conveyor 100 as in any of the above embodiments, and a clip assembly 200, wherein the clip conveyor 100 is used to convey the clip assembly 200.

[0118] Optionally, the clamp assembly 200 and the clamp delivery device 100 in the hemostatic clamp can be configured as a single unit or as separate structures.

[0119] 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 a cable assembly 130 of the clamp conveyor 100, and the clamp seat 220 is configured to connect to a connection assembly 120 of the clamp conveyor 100.

[0120] The clamp 220 is provided with a mating part 222. When the connecting assembly 120 of the clamp conveyor 100 is in the first position, the protruding tongue 122 of the connecting assembly 120 can engage with the mating part 222 to connect with the clamp 220. Optionally, the mating part 222 can be a limiting groove provided on the inner peripheral surface 221 of the clamp 220, and the protruding tongue 122 can be embedded in the mating part 222 to connect with the clamp 220; or, as... Figure 29 and Figure 30 As shown, the mating part 222 can also be a limiting hole provided on the clamp 220. The limiting hole penetrates the side wall of the clamp 220, and the protruding tongue 122 is embedded in the mating part 222 to connect with the clamp 220.

[0121] In some embodiments, the clamp 210 includes a clamping piece 211 and a pull buckle 212 connected to each other. The pull buckle 212 has a receiving groove 2122. When a portion of the structure of the pull buckle 212 is located in the first section 223, the cable assembly 130 can be inserted into the receiving groove 2122 to connect with the pull buckle 212. Upon release, as the clamping piece 211 closes, the cable assembly 130 is further pulled to lock the clamping piece 211. In this state, a portion of the structure of the pull buckle 212 is located in the first section 223. The engaging head 132 can cause the portion of the pull buckle 212 located in the first section 223 to expand and deform outward, so that the engaging head 132 of the cable assembly 130 can be separated from the pull buckle 212 with a small force. Further pulling the cable assembly 130 towards the proximal end 115 causes the tongue 122 of the connecting assembly 120 to move to the second position, thereby completing the separation of the clamp assembly 200 from the clamp conveyor 100.

[0122] 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 of other embodiments.

[0123] The clamp delivery device 100 and hemostatic clamp provided in the embodiments of this application have been described in detail above, and specific examples have been used to illustrate the principle and implementation 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 conveyor, characterized in that, include: The sheath assembly has multiple lateral holes on its circumferential sidewall; Multiple connecting components are arranged circumferentially within the sheath assembly. Each connecting component includes a connected elastic portion and a tongue portion, and the tongue portion is provided with a shoulder that protrudes outward from its surface. The tongue is movably inserted into the corresponding lateral hole, and when the connecting assembly is in the first position, the shoulder abuts against the inner edge of the lateral hole, such that the length of each tongue extending out of the lateral hole is limited to the same fixed value.

2. The clamp conveyor according to claim 1, characterized in that, The shoulders are disposed on opposite sides of the tongue, or the shoulders are disposed around the outer periphery of the tongue.

3. The clamp conveyor according to claim 1, characterized in that, The clamp conveyor also includes: A support sleeve is disposed between the plurality of connecting components, the support sleeve being in contact with the elastic portion, for supporting the connecting components at the first position.

4. The clamp conveyor according to claim 3, characterized in that, The clamp conveyor also includes: A connecting seat is disposed inside the sheath assembly and located on the side of the support sleeve near the proximal end of the sheath assembly. A plurality of connecting components are arranged at intervals around the connecting seat, and each connecting component is fixed to the connecting seat by the elastic part.

5. The clamp conveyor according to claim 1, characterized in that, When the elastic portion is compressed, the connecting assembly is able to move between a first position and a second position; in the second position, the protruding tongue is closer to the central axis O of the sheath assembly than in the first position.

6. The clamp conveyor according to claim 5, characterized in that, The elastic part has a fixed end and a movable end that are arranged opposite to each other. The fixed end is fixed inside the sheath assembly. The protruding tongue is connected to the movable end and extends from the movable end toward the lateral hole. When the elastic part is squeezed, it can generate elastic deformation so that the movable end drives the protruding tongue to move.

7. The clamp conveyor according to claim 6, characterized in that, The sheath assembly also has an assembly hole, and the connecting assembly further includes a bending portion connected to the fixed end. The bending portion is disposed in the assembly hole and abuts against the hole wall of the assembly hole.

8. The clamp conveyor according to claim 5, characterized in that, The connecting component is positioned in the second position when the elastic portion is not compressed.

9. The clamp conveyor according to claim 8, characterized in that, The clamp conveyor also includes: A cable assembly extending through the sheath assembly, the cable assembly including a coupling head movable toward the distal end of the sheath assembly and compressing the elastic portion to move the tongue portion from the second position to the first position.

10. The clamp conveyor according to claim 9, characterized in that, The coupling head can also move toward the proximal end of the sheath assembly, and when the coupling head moves toward the proximal end, the tongue can move from the first position to the second position.

11. The clamp conveyor according to claim 5, characterized in that, The connecting component is positioned at the first position when the elastic portion is not compressed.

12. The clamp conveyor according to claim 11, characterized in that, The sheath assembly includes: A transition cap, wherein the lateral hole is disposed on the transition cap, and the transition cap is further provided with a first guide groove extending along its axial direction; A control ring is movably fitted onto the transition cap, and the control ring has a first protrusion, which is disposed in the first guide groove; The elastic portion is disposed in the channel of the transition cap and partially disposed in the first guide groove. When the control ring moves toward the proximal end of the sheath assembly, the first protrusion can compress the elastic portion.

13. The clamp conveyor according to claim 12, characterized in that, The transition cap is provided with a first limiting step; The sheath assembly also includes a reset elastic element fitted onto the transition cap. The reset elastic element is located on the side of the control ring near the proximal end and is positioned between the first limiting step and the control ring.

14. The clamp conveyor according to claim 12, characterized in that, The transition cap also has a second guide groove extending along its axial direction, and the control ring also has a second protrusion, which passes through the second guide groove and is partially disposed in the channel; the clamp conveyor further includes: A cable assembly, passing through the channel, is movable toward the proximal end of the sheath assembly and abuts against the second protrusion to push the control ring toward the proximal end.

15. A hemostatic clip, characterized in that, include: The clamp conveyor as claimed in any one of claims 1 to 14, and, A clamp assembly, wherein the clamp conveyor is used to transport the clamp assembly.

16. The hemostatic clip according to claim 15, characterized in that, The clamp assembly includes a clamp seat with a mating part. When the connecting assembly of the clamp conveyor is in the first position, the tongue of the connecting assembly can engage with the mating part to connect with the clamp seat.

17. The hemostatic clip according to claim 15, characterized in that, The clamp assembly and the clamp conveyor are configured as separate structures.

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