Hemostatic clip for endoscope

Abstract

The utility model discloses a hemostatic clip for an endoscope, and belongs to the technical field of medical instruments, in the hemostatic clip for the endoscope, a guide groove of a clip piece extends along a straight line and has a closing position and a locking position which are arranged in sequence and spaced from each other, and when the clip piece is driven by a movable pin to move relative to a clip seat along a first direction, the closing position and the locking position are locked. The clamping pieces can move relative to the fixing pin, then the clamping pieces can move along the guide grooves, when the fixing pin moves to the closing position, the at least two clamping pieces can be closed mutually, and in the process that the fixing pin moves to the locking position from the closing position, the at least two clamping pieces can be always in a mutually closed state. Therefore, the clamping piece can be in a stable closed state more easily, and operation of a doctor is facilitated.

Description

Technical Field

[0001] The present application belongs to the technical field of medical devices, and specifically relates to a hemostatic clip for an endoscope. Background Art

[0002] At present, with the continuous development of endoscopic technology, minimally invasive surgery is being accepted and favored by more and more doctors and patients for its advantages of small trauma, fast recovery, and little pain. In general minimally invasive surgery, endoscopes are used as carriers. In actual use, the instruments required for the operation (generally different instruments will be selected according to the type of operation and the actual clinical situation, such as hemostatic clips for hemostasis, etc.) are passed through the forceps channel of the endoscope into the lesion site, and then the instrument is used to treat the lesion. Affected by the aperture size of the endoscope forceps channel, the outer diameter of the inserted instrument is relatively small, or the instrument is kept in a smaller outer diameter state during insertion so that it can be safely passed through the endoscope forceps channel.

[0003] For general hemostatic clip products, the instrument needs to be opened when in use in order to clamp and close the wound tissue. However, when inserting the instrument into the endoscope clamp channel, the instrument is usually closed, and a force is applied to the handle end of the instrument to keep the front end of the hemostatic clip in a closed state. However, in actual clinical operation, it will be affected by the size of the operating force. If the force is too large, the instrument may be released prematurely, resulting in instrument failure; if the force is too small, the instrument may be in an open state, thereby scratching the inner wall of the endoscope clamp channel. Therefore, it is very important for both the operator and the endoscope itself to keep the instrument in a stable closed state when passing through the endoscope clamp channel. Utility Model Content

[0004] Purpose of the utility model: The embodiment of the present application provides a hemostatic clip for an endoscope, aiming to overcome the technical problem that existing hemostatic clip products cannot be stably controlled in a closed state.

[0005] Technical solution: An endoscope hemostatic clip according to an embodiment of the present application comprises:

[0006] The clamping seat has a channel extending through the first direction;

[0007] At least two clips are movably arranged in the channel, the clips have guide grooves inclined to the first direction, the guide grooves extend along a straight line, and the guide grooves have a closed position and a locked position which are sequentially arranged and spaced from each other along the extension direction thereof;

[0008] A fixing pin connected to the clamping seat and arranged in the channel, wherein the fixing pin passes through the guide groove;

[0009] A movable pin, movably disposed in the channel and connected to the clip;

[0010] Wherein, the movable pin can move relative to the clamp seat along the first direction, and drive the clamping piece to move relative to the clamp seat along the first direction, so that the fixing pin can move along the guide groove to the closed position and the locked position;

[0011] When the fixing pin is located at the closed position, the at least two clips are closed to each other; when the fixing pin is located at the locked position, the at least two clips are closed to each other, and the position of the clip relative to the clamp seat is fixed.

[0012] In some embodiments, the clamp seat includes a first limiting portion, and the first limiting portion is disposed in the channel;

[0013] When the fixing pin is located at the locking position, the clip is connected to the first limiting portion, so that the position of the clip relative to the clip seat is fixed.

[0014] In some embodiments, the clip includes a second limiting portion, and when the fixing pin is located at the locking position, the second limiting portion is connected to a side of the first limiting portion away from the fixing pin.

[0015] In some embodiments, when the fixing pin is located at the locking position, the clip abuts against the first limiting portion.

[0016] In some embodiments, the clip includes a clamping portion, a main body portion and an operating portion, the main body portion is connected to the clamping portion and is provided with the guide groove, and the operating portion is connected to a side of the main body portion away from the clamping portion;

[0017] The operating portion has a first assembly hole and a first through slot communicating with the first assembly hole, the first through slot extending from the first assembly hole toward a side away from the main body, and the movable pin is inserted through the first assembly hole;

[0018] When the fixed pin moves to the locking position, the movable pin moves to the first through slot and presses the operating portion, so that the operating portion is deformed to abut against the first limiting portion.

[0019] In some embodiments, the operating portion includes a third limiting portion, and the third limiting portion is disposed in the first through slot, and the third limiting portion is used to limit the movable pin when the movable pin is located in the first through slot.

[0020] In some embodiments, the endoscopic hemostatic clip further comprises:

[0021] A control line connected to the movable pin, the control line being used to drive the movable pin to move relative to the clamping seat;

[0022] When the fixed pin is located at the locking position, the control line moves along the first direction, and can pull the movable pin out of the first through slot, so that the movable pin is separated from the clip.

[0023] In some embodiments, the clip has a first assembly hole, and the movable pin is inserted through the first assembly hole to be connected with the clip; the endoscope hemostatic clip further includes:

[0024] The control line has a second assembly hole and a second through slot connected to the second assembly hole, the movable pin is passed through the second assembly hole, and the second through slot extends from the second assembly hole toward a side close to the fixed pin; the control line is used to drive the movable pin to move relative to the clamp seat;

[0025] When the fixed pin is located at the locking position, the control line can move relative to the movable pin along the first direction, so that the movable pin is separated from the control line via the second through groove.

[0026] In some embodiments, the width of the second through slot is smaller than the width of the movable pin, so that when the movable pin is located in the second through slot, the movable pin squeezes the control line to deform the control line, so that the movable pin can detach from the second through slot and separate from the control line.

[0027] In some embodiments, at least one of the clips includes a limiting protrusion, and at least another of the clips includes a limiting groove;

[0028] When the fixing pin is located at the locking position, the limiting protrusion of at least one of the clips is embedded in the limiting groove of at least another clip, so that at least two clips are locked with each other.

[0029] Beneficial effect: The hemostatic clip for endoscope in the embodiment of the present application comprises: a clamp seat, having a channel extending through along a first direction; at least two clips movably arranged in the channel, the clips having a guide groove inclined to the first direction, the guide groove extending along a straight line, the guide groove having a closed position and a locked position arranged in sequence and spaced apart from each other along its extension direction; a fixed pin connected to the clamp seat and arranged in the channel, the fixed pin passing through the guide groove; a movable pin movably arranged in the channel and connected to the clip; wherein the movable pin can move relative to the clamp seat along the first direction, and drive the clip to move relative to the clamp seat along the first direction, so that the fixed pin can move along the guide groove to the closed position and the locked position; when the fixed pin is in the closed position, at least two clips are closed to each other; when the fixed pin is in the locked position, at least two clips are closed to each other, and the position of the clip relative to the clamp seat is fixed. In the present application, the guide groove of the clip extends along a straight line and has a closed position and a locked position arranged in sequence and spaced apart from each other. When the clip is driven by the movable pin to move along a first direction relative to the clip seat, the clip can move relative to the fixed pin, and then the clip can move along the guide groove. When the fixed pin moves to the closed position, at least two clips can be closed to each other, and in the process of the fixed pin moving from the closed position to the locked position, at least two clips can always be in a closed state with respect to each other, making it easier for the clip to be in a stable closed state, preventing the clip from opening, facilitating the doctor's operation, and effectively preventing delayed bleeding caused by insufficient clamping force of the clip. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without paying any creative work.

[0031] Figure 1 A schematic diagram of a partial three-dimensional structure of a hemostatic clip for an endoscope provided in an embodiment of the present application;

[0032] Figure 2 A schematic diagram of a partial side view of the structure of a hemostatic clip for an endoscope provided in an embodiment of the present application;

[0033] Figure 3 The hemostatic clip for endoscope according to the first embodiment of the present application is Figure 2 Schematic diagram of the cross-sectional structure along the AA line;

[0034] Figure 4 This is a schematic diagram of a partial structure in which the fixing pin is located in a closed position in the first embodiment of the present application;

[0035] Figure 5This is a partial structural diagram of the fixing pin in the first embodiment of the present application being located in the locking position;

[0036] Figure 6 The hemostatic clip for endoscope according to the second embodiment of the present application is Figure 2 Schematic diagram of the three-dimensional structure after sectioning along the AA line;

[0037] Figure 7 The hemostatic clip for endoscope according to the second embodiment of the present application is Figure 2 Schematic diagram of the partial main structure after sectioning along the AA line;

[0038] Figure 8 This is a schematic diagram of a partial structure of a control line in some embodiments of the present application;

[0039] Fig. 9 This is a schematic diagram of the main structure of the control line in some embodiments of the present application;

[0040] Fig.10 This is a schematic diagram of the structure when the control line is deformed in some embodiments of the present application;

[0041] Fig.11 The hemostatic clip for endoscope of the third embodiment of the present application is arranged along the Figure 2 Schematic diagram of the cross-sectional structure along the AA line;

[0042] Fig.12 The hemostatic clip for endoscope according to the third embodiment of the present application is arranged along the locking position when the fixing pin is in the locking position. Figure 2 Schematic diagram of the cross-sectional structure along the AA line;

[0043] Fig.13 This is a schematic diagram of the main structure of the control line in some other embodiments of the present application;

[0044] Fig.14 This is a schematic diagram of a three-dimensional structure of a clip in the fourth embodiment of the present application;

[0045] Fig.15 This is a schematic diagram of the three-dimensional structure of another clip in the fourth embodiment of the present application;

[0046] Fig.16 A schematic diagram of the structure of a hemostatic clip for an endoscope provided in an embodiment of the present application;

[0047] Figure markings: 100-clamp seat; 110-channel; 120-first limiting portion; 200-clamp; 210-guide groove; 220-second limiting portion; 230-clamping portion; 240-main body; 250-operating portion; 251-third limiting portion; 260-first assembly hole; 270-first through groove; 280-limiting protrusion; 290-limiting groove; 300-fixing pin; 400-movable pin; 500-control line; 510-second assembly hole; 520-second through groove; 600-sheath tube; 700-handle. DETAILED DESCRIPTION

[0048] The technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present application.

[0049] In the description of the present application, it should be understood that the terms "proximal end" and "distal end" are used as reference objects by the surgical operator (doctor), wherein the "proximal end" is the end of the surgical tool closer to the operator, and the "distal end" is the end farther away from the operator relative to the "proximal end", that is, the end closer to the patient. The orientation or positional relationship indicated by the terms "upper", "lower", "top", "bottom", "inside", "outside", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. In the description of the present application, the meaning of "multiple" is two or more, and at least one refers to one, two or more, unless otherwise clearly and specifically defined.

[0050] It should also be noted that in the drawings of the embodiments of the present application, the arrow marked with X represents the first direction X. The first direction X is introduced in the description of the present application in order to more clearly describe the structure and relative position relationship of the components in the endoscopic hemostatic clip. In actual applications, the first direction X can point to any direction in space.

[0051] The embodiment of the present application provides a hemostatic clip for an endoscope, which can improve the operating efficiency of clinical surgery, reduce the risk of instrument failure, and reduce the operating difficulty of the surgical operator.

[0052] Please combine Figures 1 to 5The hemostatic clip for endoscope of the embodiment of the present application mainly comprises a clip seat 100, a clip 200, a fixed pin 300 and a movable pin 400. The clip 200 is assembled in the clip seat 100 through the fixed pin 300, and the clip 200 is controlled by the movable pin 400 to realize the opening, closing, locking of the clip 200 and the release of the hemostatic clip.

[0053] Specifically, the clamp seat 100 has a channel 110 extending through the first direction X, and the clip 200 is movably arranged in the channel 110. The number of the clips 200 is at least two, that is, the hemostatic clip for endoscope can have only two clips 200, or more clips 200 can be arranged according to actual application requirements. It can be understood that in the hemostatic clip for endoscope, at least two clips 200 can cooperate with each other to achieve mutual opening and closing. The clip 200 has a guide groove 210 inclined to the first direction X, the guide groove 210 extends along a straight line, and has a closed position and a locked position arranged in sequence and spaced from each other along the extension direction of the guide groove 210. The fixing pin 300 is arranged in the channel 110 and connected to the clamp seat 100. The fixing pin 300 is inserted into the guide groove 210 so as to be able to move in the guide groove 210. The clip 200 moves relative to the fixing pin 300 to achieve the opening and closing of the clip 200. The movable pin 400 is movably disposed in the channel 110 , and the movable pin 400 is connected to the clip 200 .

[0054] The movable pin 400 can move relative to the clamping seat 100 along the first direction X, and drive the clip 200 to move relative to the clamping seat 100 along the first direction X, so that the fixed pin 300 can move to the closed position and the locked position along the guide groove 210. When the fixed pin 300 is in the closed position, at least two clips 200 are closed to each other; when the fixed pin 300 is in the locked position, at least two clips 200 are closed to each other, and the clip 200 is connected to the clamping seat 100, so that the position of the clip 200 relative to the clamping seat 100 is fixed.

[0055] It can be understood that in the hemostatic clip for endoscope of the embodiment of the present application, the closed position and the locked position are sequentially arranged and spaced from each other along the extension direction of the guide groove 210, and the movable pin 400 moves relative to the clamp seat 100 along the first direction X, which can drive the clip 200 to move relative to the clamp seat 100 along the first direction X, so that the clip 200 can move relative to the fixed pin 300, and then the clip 200 can move along the guide groove 210. When the fixed pin 300 moves to the closed position, at least two clips 200 can be closed to each other, and in the process of the fixed pin 300 moving from the closed position to the locked position, at least two clips 200 can always be in a closed state with each other, so that the clip 200 is more likely to be in a stable closed state, preventing the clip 200 from opening, facilitating the operation of doctors during clinical use, and after clamping the tissue, it can effectively prevent delayed bleeding caused by insufficient clamping force of the clip 200.

[0056] Please refer to the Figure 3 , Figure 4 and Figure 5 When the fixed pin 300 is in the closed position, the movable pin 400 moves relative to the clamp seat 100 along the first direction X, which can drive the clip 200 to move along the first direction X, so that the two matching clips 200 can be further clamped, and the fixed pin 300 can gradually move to the locking position, so that the clip 200 is connected to the clamp seat 100, so that the position of the clip 200 relative to the clamp seat 100 is fixed. When the fixed pin 300 is in the closed position, the movable pin 400 moves relative to the clamp seat 100 in the opposite direction of the first direction X, which can drive the clip 200 to move in the opposite direction of the first direction X, and the fixed pin 300 moves along the guide groove 210, so that the clip 200 can rotate around the movable pin 400, and the hemostatic clip is opened.

[0057] Please also read Figure 3 , Figure 6 , Figure 7 and Fig.12 In some embodiments, the clamp seat 100 includes a first limiting portion 120, which is disposed in the channel 110. Specifically, the first limiting portion 120 may be a boss disposed toward the channel 110. When the fixing pin 300 is located at the locking position, the clip 200 is connected to the first limiting portion 120, so that the position of the clip 200 relative to the clamp seat 100 is fixed, and the clip 200 and the clamp seat 100 are relatively fixed. The difficulty of clinical operation is reduced, and the occurrence of instrument failure due to operator negligence is reduced.

[0058] For further information, please refer to Figure 3 , Figure 4 and Figure 5In the first embodiment, the clip 200 includes a second limiting portion 220. When the fixing pin 300 is in the locking position, the second limiting portion 220 is connected to the side of the first limiting portion 120 away from the fixing pin 300, so that the position of the clip 200 relative to the clamping seat 100 is fixed. Specifically, the second limiting portion 220 can be a protruding barb structure, hooked on the boss formed by the first limiting portion 120.

[0059] Please refer again Figure 6 , Figure 7 and Fig.12 In some embodiments, when the fixing pin 300 is located at the locking position, the clip 200 abuts against the first limiting portion 120 , so that the position of the clip 200 relative to the clamping base 100 is fixed.

[0060] In some embodiments, the clip 200 includes a clamping portion 230, a main body portion 240 and an operating portion 250. The clamping portion 230 is the main structure of the clip 200 for clamping tissue. Generally speaking, at least a portion of the clamping portion 230 is located outside the channel 110 to facilitate clamping of tissue. In some embodiments, the clamping portion 230 may be completely outside the channel 110, or may be partially inside the channel 110 and partially outside the channel 110. The main body portion 240 is connected to the clamping portion 230, the guide groove 210 is provided on the main body portion 240, and the operating portion 250 is connected to the side of the main body portion 240 away from the clamping portion 230. By applying a driving force to the operating portion 250, the entire clip 200 is driven to move relative to the clamp seat 100. For details, please refer to Fig.11 and Fig.12 In the third embodiment, the operating portion 250 has a first assembly hole 260 and a first through slot 270 communicating with the first assembly hole 260. The first through slot 270 extends from the first assembly hole 260 toward a side away from the main body 240, and the movable pin 400 is inserted through the first assembly hole 260. When the fixing pin 300 moves to the locking position along the guide slot 210, the movable pin 400 moves from the first assembly hole 260 to the first through slot 270 and presses the operating portion 250, so that the operating portion 250 is deformed to abut against the first limiting portion 120. Thus, the position of the clip 200 relative to the clip seat 100 can be fixed under the action of the abutting force.

[0061] For details, please refer to Fig.11As shown, the width of the movable pin 400 is d1mm, and the width of the first through slot 270 is d2mm, d2<d1, so when the movable pin 400 moves into the first through slot 270, due to the wider size of the movable pin 400, it can squeeze the side wall of the first through slot 270, thereby squeezing the operating part 250 to deform it. Among them, the width d2 of the first through slot 270 is the median of the measured width of the first through slot 270 when the movable pin 400 is located in the first assembly hole 260, that is, when the operating part 250 is not deformed by the squeezing of the movable pin 400. In some embodiments, the widths of various positions of the first through slot 270 may be inconsistent, and the corresponding position of the movable pin 400 in the first through slot 270 when the fixed pin 300 is in the locking position can be determined first. The above-mentioned width d2 is the width obtained by measuring the corresponding position when the operating part 250 is not deformed by the squeezing of the movable pin 400.

[0062] Further, in the third embodiment, the operating part 250 includes a third limiting part 251, which is arranged on the first through slot 270, and is used to limit the movable pin 400 when the movable pin 400 is located in the first through slot 270. Specifically, the third limiting part 251 can be a protruding structure arranged toward the first through slot 270, and the width of the first through slot 270 is reduced by the protruding structure, so that the position of the movable pin 400 can be limited to a certain extent. Only when the driving force acting on the movable pin 400 is large enough, the movable pin 400 squeezes the third limiting part 251, and the operating part 250 generates a large enough deformation, can the movable pin 400 be separated from the first through slot 270. This reduces the possibility of premature release of the hemostatic clip and instrument failure due to operator negligence.

[0063] Specifically, when the movable pin 400 drives the clip 200 to move relative to the clamp seat 100, the fixed pin 300 can be moved from the closed position to the locked position along the guide groove 210. In this process, the movable pin 400 moves to the third limit portion 251, squeezes the third limit portion 251, and causes the third limit portion 251 to be stretched and deformed to both sides, thereby causing the operating portion 250 to deform to both sides, abut against the clamp seat 100, and friction lock. Continuing to pull the movable pin 400 can make the movable pin 400 pass over the third limit portion 251, complete the release, and at the same time, the operating portion 250 continues to deform and completely locks with the clamp seat 100.

[0064] For further information, please also refer to Fig.13 and Fig.16The endoscope hemostatic clip also includes a control line 500, which is connected to the movable pin 400 and is used to drive the movable pin 400 to move relative to the clamp seat 100, so as to complete a series of actions such as opening, closing and releasing of the hemostatic clip. When the fixed pin 300 is in the locked position, the control line 500 moves along the first direction X, and can pull the movable pin 400 out of the first through groove 270, so that the movable pin 400 is separated from the clip 200, and the hemostatic clip is released.

[0065] Please also read Figures 3 to 10 In some embodiments, the clip 200 has a first assembly hole 260, and the movable pin 400 is inserted into the first assembly hole 260 to connect with the clip 200. The endoscope hemostatic clip also includes a control line 500, the control line 500 has a second assembly hole 510 and a second through slot 520 connected to the second assembly hole 510, and the movable pin 400 is inserted into the second assembly hole 510 to achieve assembly connection with the control line 500. The second through slot 520 extends from the second assembly hole 510 to the side close to the fixed pin 300; the control line 500 is used to drive the movable pin 400 to move relative to the clamp seat 100. When the fixed pin 300 is in the locked position, the control line 500 can move relative to the movable pin 400 along the first direction X, so that the movable pin 400 is separated from the control line 500 via the second through slot 520, thereby releasing the hemostatic clip.

[0066] For details, please refer to Fig.12 The width d3 of the second through slot 520 is smaller than the width d1 of the movable pin 400, so that when the movable pin 400 is located in the second through slot 520, the movable pin 400 squeezes the control line 500 to deform the control line 500, so that the movable pin 400 can be separated from the second through slot 520 and separated from the control line 500, thereby releasing the hemostatic clip. The width d3 of the second through slot 520 is the median value of the measured width of the second through slot 520 when the movable pin 400 is located in the second assembly hole 510, that is, when the control line 500 is not deformed due to squeezing by the movable pin 400.

[0067] Please also read Fig.14 and Fig.15 In the fourth embodiment, at least one clip 200 includes a limiting protrusion 280, and at least another clip 200 has a limiting groove 290; when the fixing pin 300 is in the locking position, the limiting protrusion 280 of at least one clip 200 is embedded in the limiting groove 290 of at least another clip 200, so that at least two clips 200 are locked with each other, further enhancing the stability of the hemostatic clip closure.

[0068] See also Fig.16The endoscopic hemostatic clip of the embodiment of the present application may also include a sheath tube 600 and a handle 700. The sheath tube 600 is arranged between the handle 700 and the clamp seat 100. The control line 500 is arranged inside the sheath tube 600 and connected to the handle 700. By operating the handle 700 at the proximal end and using the control line 500 to transmit the driving force, a series of actions such as opening, closing, locking and releasing of the distal end of the hemostatic clip are achieved, which greatly improves the efficiency of clinical surgery and reduces the risk of instrument failure.

[0069] It should be noted that, in clinical applications, by applying a force in the first range through the handle 700, the hemostatic clamp can be gradually switched from the open state to the closed state, that is, the fixed pin 300 gradually moves to the closed position, so that the clips 200 are closed to each other; by applying a force in the second range through the handle 700, the hemostatic clamp can be gradually switched from the closed state to the locked state, that is, the fixed pin 300 gradually moves to the locked position, so that the position of the clip 200 relative to the clip seat 100 is fixed; by applying a force in the third range through the handle 700, the hemostatic clamp can be switched from the locked state to the released state, that is, the control line 500 and the movable pin 400 are separated, or the movable pin 400 and the clip 200 are separated. Among them, the magnitudes of the force in the first range, the force in the second range, and the force in the third range are different. Generally, the force in the first range is smaller than the force in the second range, which is smaller than the force in the third range. Or, the force in the first range is smaller than the force in the second range and the force in the third range, and the force in the second range is smaller than the force in the third range.

[0070] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0071] The above is a detailed introduction to the endoscopic hemostatic clip provided in the embodiments of the present application, and the principles and implementation methods of the present application are explained using specific examples. The description of the above embodiments is only used to help understand the technical solution and its core idea of ​​the present application. Ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some of the technical features therein with equivalents; and these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the present application.

Claims

1. A hemostatic clip for endoscope, characterized in that: include: The clamping seat (100) has a channel (110) extending through the first direction (X); At least two clips (200) are movably arranged in the channel (110), the clips (200) having a guide groove (210) inclined to the first direction (X), the guide groove (210) extending along a straight line, and the guide groove (210) having a closed position and a locked position arranged in sequence and spaced apart from each other along the extension direction thereof; A fixing pin (300) connected to the clamping seat (100) and arranged in the channel (110), wherein the fixing pin (300) passes through the guide groove (210); A movable pin (400) is movably disposed in the channel (110) and connected to the clip (200); The movable pin (400) is capable of moving relative to the clamp seat (100) along the first direction (X), and drives the clamping piece (200) to move relative to the clamp seat (100) along the first direction (X), so that the fixing pin (300) can move along the guide groove (210) to the closed position and the locked position; When the fixing pin (300) is located at the closed position, the at least two clips (200) are closed to each other; When the fixing pin (300) is located at the locking position, the at least two clips (200) are closed to each other, and the position of the clips (200) relative to the clip seat (100) is fixed.

2. The hemostatic clip for endoscope according to claim 1, characterized in that: The clamping seat (100) comprises a first limiting portion (120), wherein the first limiting portion (120) is arranged on the channel (110); When the fixing pin (300) is located at the locking position, the clip (200) is connected to the first limiting portion (120), so that the position of the clip (200) relative to the clip seat (100) is fixed.

3. The hemostatic clip for endoscope according to claim 2, characterized in that: The clip (200) comprises a second limiting portion (220), and when the fixing pin (300) is located at the locking position, the second limiting portion (220) is connected to a side of the first limiting portion (120) away from the fixing pin (300).

4. The hemostatic clip for endoscope according to claim 2, characterized in that: When the fixing pin (300) is located at the locking position, the clip (200) abuts against the first limiting portion (120).

5. The hemostatic clip for endoscope according to claim 4, characterized in that: The clip (200) comprises a clamping portion (230), a main body (240) and an operating portion (250), wherein the main body (240) is connected to the clamping portion (230) and is provided with the guide groove (210), and the operating portion (250) is connected to a side of the main body (240) away from the clamping portion (230); The operating portion (250) has a first assembly hole (260) and a first through slot (270) communicating with the first assembly hole (260), the first through slot (270) extending from the first assembly hole (260) toward a side away from the main body (240), and the movable pin (400) is inserted into the first assembly hole (260); When the fixed pin (300) moves to the locking position, the movable pin (400) moves to the first through slot (270) and presses the operating portion (250), causing the operating portion (250) to deform and abut against the first limiting portion (120).

6. The hemostatic clip for endoscope according to claim 5, characterized in that: The operating portion (250) comprises a third limiting portion (251), wherein the third limiting portion (251) is arranged in the first through slot (270), and the third limiting portion (251) is used to limit the movable pin (400) when the movable pin (400) is located in the first through slot (270).

7. The hemostatic clip for endoscope according to claim 5 or 6, characterized in that: The endoscope hemostatic clip also includes: A control line (500) connected to the movable pin (400), the control line (500) being used to drive the movable pin (400) to move relative to the clamping seat (100); When the fixed pin (300) is located at the locking position, the control line (500) moves along the first direction (X), and can pull the movable pin (400) out of the first through slot (270), so that the movable pin (400) is separated from the clip (200).

8. The hemostatic clip for endoscope according to claim 1, characterized in that: The clip (200) has a first assembly hole (260), and the movable pin (400) is inserted into the first assembly hole (260) to be connected to the clip (200); the hemostatic clip for endoscope further includes: The control line (500) has a second assembly hole (510) and a second through slot (520) connected to the second assembly hole (510), the movable pin (400) is inserted into the second assembly hole (510), and the second through slot (520) extends from the second assembly hole (510) toward a side close to the fixed pin (300); the control line (500) is used to drive the movable pin (400) to move relative to the clamping seat (100); When the fixed pin (300) is located at the locking position, the control line (500) can move relative to the movable pin (400) along the first direction (X), so that the movable pin (400) is separated from the control line (500) via the second through slot (520).

9. The hemostatic clip for endoscope according to claim 8, characterized in that: The width of the second through groove (520) is smaller than the width of the movable pin (400), so that when the movable pin (400) is located in the second through groove (520), the movable pin (400) squeezes the control line (500) to cause the control line (500) to deform, so that the movable pin (400) can be disengaged from the second through groove (520) and separated from the control line (500).

10. The hemostatic clip for endoscope according to claim 1, characterized in that: At least one of the clips (200) comprises a limiting protrusion (280), and at least another of the clips (200) has a limiting groove (290); When the fixing pin (300) is located at the locking position, the limiting protrusion (280) of at least one of the clips (200) is embedded in the limiting groove (290) of at least another of the clips (200), so that at least two of the clips (200) are locked with each other.

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