Clamp instrument and control method thereof

Abstract

A clip instrument (10) and a method of controlling the same. The clip instrument (10) comprises a clip device (300), a conveying device (200) and a control device (100), the clip device (300) is arranged at the far end of the conveying device (200) in a releasable mode, the control device (100) comprises control lines (110), and the control lines (110) comprise a first control line (110-1) and a second control line (110-2); the clamp device (300) comprises a clamp seat (320) and two clamping parts (310), the two clamping parts (310) comprise a first clamping part (310-1) and a second clamping part (310-2), the far end of the first control line (110-1) is in releasable connection with the first clamping part (310-1), and the far end of the second control line (110-2) is in releasable connection with the second clamping part (310-2); the two clamping parts (310) are configured to be capable of deflecting in the same direction around the axis under the action of the first control line (110-1) and / or the second control line (110-2), and the axis is perpendicular to the plane where the two clamping parts (310) are located.

Description

A clamp device and a control method thereof

[0001] Cross-references

[0002] This application claims priority to Chinese application No. 2023111898489, filed on September 14, 2023, the entire contents of which are incorporated herein by reference. Technical Field

[0003] This specification relates to the field of medical devices, and in particular to a clamp device and a control method thereof. Background Art

[0004] In recent years, endoscopic technology has developed rapidly, and various surgeries using endoscopes have emerged. In endoscopic surgery, a clip device is needed to close the wound and stop bleeding. In clinical operations, when the distal end of the endoscope reaches the vicinity of the wound, the clamping direction of the clip device may deviate from the opening direction of the wound, so it is necessary to adjust the clip device to face the wound to achieve effective clamping. Usually, the clamping direction of the clip device is changed by adjusting the distal swing of the endoscope (or sheath), but this method is difficult to operate and the positioning is inaccurate, which leads to prolonged operation time and increased surgical risks. In addition, existing clip devices usually do not have sufficient clamping force to clamp large spans of tissue.

[0005] Based on this, it is necessary to propose a clamping instrument with stable clamping, which can be positioned more conveniently and accurately to the position opposite the wound and can clamp large-span tissues to simplify surgical operations and reduce surgical risks.

[0006] Summary of the Invention

[0007] One or more embodiments of the present specification provide a clamp instrument, which includes a clamp device, a conveying device and a control device, wherein the clamp device is releasably arranged at the distal end of the conveying device, the control device includes a control line, and the control line includes a first control line and a second control line; the clamp device includes a clamp seat and two clamping parts, and the two clamping parts include a first clamping part and a second clamping part, the distal end of the first control line is releasably connected to the first clamping part, and the distal end of the second control line is releasably connected to the second clamping part; the two clamping parts are configured to be able to deflect in the same direction around an axis under the action of the first control line and / or the second control line, and the axis is perpendicular to the plane where the two clamping parts are located.

[0008] One or more embodiments of the present specification provide a clamp instrument, including a clamp device, wherein the clamp device includes a clamp seat and two clamping parts, the two clamping parts include a first clamping part and a second clamping part, at least one of the first clamping part and the second clamping part includes a puncture member, the puncture member includes a puncture rod and a puncture head connected to each other, and the puncture head includes a hanging part arranged toward the puncture rod.

[0009] One or more embodiments of the present specification provide a control method for a clamp instrument, which is applied to a clamp instrument, wherein the clamp instrument includes a clamp device, a conveying device and a control device, wherein the clamp device is releasably arranged at the distal end of the conveying device, and the control device includes a control line, which includes a first control line and a second control line; the clamp device includes a clamp seat and two clamping parts, and the two clamping parts include a first clamping part and a second clamping part, the distal end of the first control line is releasably connected to the first clamping part, and the distal end of the second control line is releasably connected to the second clamping part; the control method includes: controlling the first control line to move from the proximal end to the distal end, so that the first control line drives the first clamping part to deflect around the axis; controlling the second control line to move from the distal end to the proximal end, so that the second control line drives the second clamping part to deflect around the axis; wherein the deflection directions of the first clamping part and the second clamping part are the same, and the clamp device deflects as a whole.

[0010] One or more embodiments of the present specification provide a control method for a clamp instrument, which is applied to the clamp instrument, wherein the clamp instrument includes a clamp device, a conveying device and a control device, wherein the clamp device is releasably arranged at the distal end of the conveying device, and the control device includes a control line, which includes a first control line and a second control line; the clamp device includes a clamp seat and two clamping parts, and the two clamping parts include a first clamping part and a second clamping part, the distal end of the first control line is releasably connected to the first clamping part, and the distal end of the second control line is releasably connected to the second clamping part; the control method includes: controlling the first control line to move toward the distal end so that the clamp instrument is in a side-opening state; when the side-opening angle of the clamp instrument reaches a maximum value, continuing to control the first control line to move toward the distal end, and the first clamping part and the second clamping part deflect in the same direction.

[0011] One or more embodiments of the present specification provide a control method for a clamp instrument, which is applied to a clamp instrument, wherein the clamp instrument includes a clamp device, a conveying device and a control device, wherein the clamp device is releasably arranged at the distal end of the conveying device, and the control device includes a control line, which includes a first control line and a second control line; the clamp device includes a clamp seat and two clamping parts, and the two clamping parts include a first clamping part and a second clamping part, the distal end of the first control line is releasably connected to the first clamping part, and the distal end of the second control line is releasably connected to the second clamping part; at least one of the first clamping part and the second clamping part includes a puncture member; the control method includes: controlling the clamp instrument to clamp a first target object at a first target position and causing the puncture member to penetrate the first target object; controlling at least a portion of the clamp device to move to a second target position, and the puncture member drives the first target object to move synchronously; and controlling the clamp instrument to clamp the first target object and the second target at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] This specification will be further described in the form of exemplary embodiments, which will be described in detail with reference to the accompanying drawings. These embodiments are not limiting, and in these embodiments, like numbers represent like structures, wherein:

[0013] FIG1 is a schematic structural diagram of a clip device according to some embodiments of the present specification;

[0014] FIG2 is a schematic structural diagram of a clamp device according to some embodiments of this specification;

[0015] FIG3 is a schematic structural diagram of a clamping portion according to some embodiments of this specification;

[0016] FIG4 is a schematic structural diagram of a clamping base according to some embodiments of this specification;

[0017] FIG5A is a schematic diagram of a clamp device and a delivery device according to some embodiments of the present specification;

[0018] FIG5B is an exploded schematic diagram of a clamp device and a delivery device according to some embodiments of the present specification;

[0019] FIG6 is a schematic diagram of the structure of a control line according to some embodiments of this specification;

[0020] FIG7 is a schematic diagram of a clip instrument deflection according to some embodiments of the present specification;

[0021] FIG8A is a schematic diagram illustrating deflection of a clip instrument according to some embodiments of the present specification;

[0022] FIG8B is a partially enlarged schematic diagram of the clip device according to some embodiments of FIG8A ;

[0023] FIG8C is a partially enlarged schematic diagram of a clip device according to other embodiments of FIG8A ;

[0024] FIG8D is a simplified cross-sectional view of the clip device according to some embodiments of FIG8A taken along line CC;

[0025] FIG8E is a second simplified cross-sectional view of the clip device according to some embodiments of FIG8A taken along line CC;

[0026] FIG9 is a schematic diagram of a control device according to some embodiments of the present specification;

[0027] FIG10 is a schematic diagram of a control device according to some embodiments of the present specification;

[0028] FIG11 is a partially enlarged schematic diagram of a clip device according to some embodiments of the present specification;

[0029] FIG12 is a schematic structural diagram of a connecting pin according to some embodiments of this specification;

[0030] FIG13 is a schematic diagram of an open state of a clip device according to some embodiments of the present specification;

[0031] FIG14 is a schematic diagram of a clip device in a deflected state according to some embodiments of the present specification;

[0032] FIG15 is a schematic diagram of a deflected state of a clip device according to other embodiments of the present specification;

[0033] FIG16A is a schematic diagram of a clip device in a clamping state according to some embodiments of the present specification;

[0034] FIG16B is a partially enlarged schematic diagram of the clip device according to some embodiments of FIG16A;

[0035] 17A is a schematic diagram of a clip device in a locked state and a released state of a clamping portion and a control line according to some embodiments of the present specification;

[0036] FIG17B is a partially enlarged schematic diagram of the clip device according to some embodiments of FIG17A;

[0037] FIG18A is a schematic diagram of a clamp device and a delivery device in a released state according to some embodiments of the present specification;

[0038] FIG18B is a partially enlarged schematic diagram of the clip device according to some embodiments of FIG18A;

[0039] FIG19A is a schematic structural diagram of a first clamping portion according to some embodiments of this specification;

[0040] FIG19B is a schematic structural diagram of a second clamping portion according to some embodiments of this specification;

[0041] FIG19C is a schematic diagram of a clip device in a closed state according to some embodiments of the present specification;

[0042] FIG19D is a partially enlarged schematic diagram of the clip device according to some embodiments of FIG19C ;

[0043] FIG19E is a schematic diagram of a clamp device in a released state according to some embodiments of the present specification;

[0044] FIG19F is a partially enlarged schematic diagram of the clip device according to some embodiments of FIG19E;

[0045] FIG20 is a schematic structural diagram of a clamp device according to other embodiments of this specification;

[0046] FIG21A is a schematic structural diagram of a puncture member according to other embodiments of this specification;

[0047] FIG21B is a schematic structural diagram of a puncture member according to other embodiments of this specification;

[0048] FIG21C is a schematic structural diagram of a puncture member according to yet other embodiments of this specification;

[0049] FIG21D is a schematic structural diagram of a puncture member according to some other embodiments of this specification;

[0050] FIG22 is a schematic diagram showing the height relationship between the piercing member and the first clamp according to some embodiments of this specification;

[0051] FIG23 is a schematic structural diagram of a puncture table according to some embodiments of this specification;

[0052] FIG24 is a schematic diagram showing the height relationship between the puncture member and the first chuck, and between the puncture platform and the second chuck according to some embodiments of this specification;

[0053] FIG25 is a schematic diagram showing the length relationship between the piercing member and the clamping portion according to some embodiments of this specification;

[0054] FIG26 is a schematic diagram of a clip device in an open state according to other embodiments of the present specification;

[0055] FIG27A is a schematic diagram of a clip device in a deflected state according to other embodiments of the present specification;

[0056] FIG27B is a schematic diagram of the control handle in a deflected state according to some embodiments of FIG27A ;

[0057] FIG27C is a schematic diagram of a control handle in a deflected state according to other embodiments of FIG27A ;

[0058] FIG28A is a schematic diagram of a clip device according to other embodiments of the present specification, after opening laterally and clamping tissue;

[0059] FIG28B is a schematic diagram of a control handle in the state shown in FIG28A according to some embodiments;

[0060] FIG29A is a schematic diagram of a clip device in a secondary open state according to other embodiments of the present specification;

[0061] FIG29B is a schematic diagram of a control handle in the state shown in FIG29A according to some embodiments;

[0062] FIG29C is a schematic diagram of a clip device in a secondary open state according to yet other embodiments of the present specification;

[0063] FIG30A is a schematic diagram of a clip in a secondary clamping state according to other embodiments of the present specification;

[0064] FIG30B is a schematic diagram of a control handle in the state shown in FIG30A according to some embodiments;

[0065] FIG31A is a schematic diagram of a clamp device and a delivery device in a released state according to other embodiments of the present specification;

[0066] FIG31B is a schematic diagram of a control handle in the state shown in FIG31A according to some embodiments. DETAILED DESCRIPTION

[0067] To more clearly illustrate the technical solutions of the embodiments of this specification, the following briefly describes the drawings required for describing the embodiments. Obviously, the drawings described below are merely examples or embodiments of this specification. Those skilled in the art can apply this specification to other similar scenarios based on these drawings without inventive effort. Unless otherwise apparent from the context or otherwise noted, the same reference numerals in the figures represent the same structure or operation.

[0068] It should be understood that the terms "system," "device," "unit," and / or "module" used herein are a method for distinguishing different components, elements, parts, portions, or assemblies at different levels. However, if other terms can achieve the same purpose, the terms may be replaced by other expressions.

[0069] As used in this specification and claims, unless the context clearly indicates otherwise, the words "a," "an," "an," and / or "the" do not refer to the singular but also include the plural. Generally speaking, the terms "comprises" and "include" only indicate the inclusion of the steps and elements specifically identified, and these steps and elements do not constitute an exclusive list. A method or apparatus may also include other steps or elements.

[0070] FIG1 is a schematic structural diagram of a clip device 10 according to some embodiments of the present disclosure.

[0071] As shown in FIG1 , a clip device 10 can be used in a medical endoscope to perform operations such as clamping, hemostasis, and suturing during endoscopic surgery. In some embodiments, the clip device 10 includes a control device 100, a delivery device 200, and a clip device 300. The clip device 300 and the delivery device 200 are releasably connected. In some embodiments, the clip device 300 is releasably disposed at the distal end of the delivery device 200. The delivery device 200 is used to deliver the clip device 300 through the endoscope channel into the human body. After the control device 100 controls the clip device 300 to complete the opening, closing, locking, and release operations, the clip device 300 remains in the human body. After the delivery device 200 is separated from the clip device 300, the delivery device 200 is withdrawn from the endoscope channel.

[0072] In some embodiments, the clamp device 300 includes a clamping portion 310 (see FIG. 2 ). To effectively close the wound 410 in the tissue 400, the clamping portion 310 must be oriented directly toward the wound 410. During clinical surgery, the clamping portion 310 is aligned with the scope by adjusting the angle of the distal end of the scope. However, this operation is difficult and results in inaccurate positioning, which increases surgical time and risks.

[0073] In view of this, some embodiments of the present specification provide a clamp device 10, wherein the clamping portion 310 of the clamp device 10 is configured to rotate in the same direction relative to the clamping base 320. By adjusting the deflection of the clamping portion 310 relative to the distal end of the scope, the clamping portion 310 can be more conveniently positioned to face the tissue 400, thereby reducing operational difficulty. In some embodiments, the clamping base 320 includes a limiter 323, which can limit the deflection angle of the clamping portion 310, preventing the clamping portion 310 from excessively deflecting in a direction D1 approaching the central axis BB of the clamping base 320, preventing the clamping direction of the two clamping portions 310 from being misaligned with the wound 410, and preventing the clamping from failing. This improves the positioning accuracy of the position of the clamping portion 310 facing the wound 410 during the deflection process.

[0074] The "proximal end" and "distal end" involved in some embodiments of this specification may refer to the endpoint, end face, end, part close to the end and having a certain length, etc. of the clamp instrument 10 or its components, and accordingly, "towards the proximal end" and "towards the distal end" refer to the direction toward the corresponding endpoint. For example, the end of the clamp instrument 10 that extends into the human body is the "distal end"; accordingly, "towards the distal end" refers to the direction along the axial direction of the clamp instrument 10, toward the end that extends into the human body; the other end opposite to the distal end of the clamp instrument 10 (the endpoint, end face, end, part close to the end and having a certain length, etc.) is the "proximal end"; accordingly, "towards the proximal end" refers to the direction along the axial direction of the clamp instrument 10, away from the end that extends into the human body.

[0075] Figure 2 is a structural diagram of a clamp device 300 according to some embodiments of this specification; Figure 3 is a structural diagram of a clamping portion 310 according to some embodiments of this specification; Figure 4 is a structural diagram of a clamping seat 320 according to some embodiments of this specification.

[0076] As shown in FIG2 , in some embodiments, the clamp instrument 10 includes a clamp device 300, which includes two clamping parts 310. The clamping parts 310 refer to components used to clamp the wound 410 of the tissue 400. In some embodiments, the two clamping parts 310 may include a first clamping part 310-1 and a second clamping part 310-2. In some embodiments, the clamping parts 310 deflect around an axis A under the action of the control device 100, wherein the axis A is perpendicular to the plane where the two clamping parts 310 are located. For example, the axis A in FIG2 extends inward and outward from the paper. In some embodiments, the control device 100 refers to a component used to control the deflection of the clamping parts 310. The control device 100 includes but is not limited to structures such as a control line 110 and a control handle 120. In some embodiments, the control line 110 may include a first control line 110-1 and a second control line 110-2.

[0077] In some embodiments, the clamping portions 310 deflect in a clockwise or counterclockwise direction about the axis A. For example, the two clamping portions 310 can deflect in opposite directions about the axis A, i.e., one clamping portion 310 deflects clockwise about the axis A while the other clamping portion 310 deflects counterclockwise about the axis A, enabling the clamping portions 310 to perform opening and closing operations, thereby achieving a clamping function. For another example, the two clamping portions 310 can deflect in the same direction about the axis A, i.e., both clamping portions 310 deflect clockwise or counterclockwise about the axis A, thereby enabling the clamping portions 310 to perform an overall deflection operation, thereby achieving the function of positioning the clamping portions 310 in the direction facing the wound 410 of the tissue 400.

[0078] During clinical operation, after the two clamping parts 310 are opened, the operating clamping parts 310 are deflected in the same direction to the direction of the wound 410 facing the tissue 400, which is conducive to achieving effective clamping of the wound 410 of the tissue 400 and ensuring the clamping effect; and, after the operator operates the clamping parts 310 to open, there is no need to replace the control handle 120, and then operate the clamping parts 310 to rotate through the control device 100. Compared with replacing the endoscope handle, operating the distal end rotation of the endoscope is more convenient, simpler, and more accurately positioned, thereby saving operation time and reducing operation risks.

[0079] As shown in Figures 2 to 4, in some embodiments, the clamp device 300 further includes a clamping seat 320. The clamping seat 320 is a structure for mounting the clamping portion 310, and the clamping portion 310 is rotatably engaged with the clamping seat 320. In some embodiments, one of the clamping portion 310 and the clamping seat 320 includes a pin, and the other includes a pin hole. The pin and the pin hole rotatably engage with each other, thereby rotatably connecting the clamping portion 310 and the clamping seat 320. For example, the clamping portion 310 includes a pin hole 311, and the clamping seat 320 includes a pin 321. The clamping portion 310 engages with the pin 321 of the clamping seat 320 through the pin hole 311, thereby rotatably connecting the clamping portion 310 and the clamping seat 320. In some embodiments, the clamping base 320 includes a mounting hole 322 and a pin 321. When the clamping portion 310 and the clamping base 320 are connected, the mounting hole 322 of the clamping base 320 is aligned with the pin hole 311 of the clamping portion 310. The pin 321 is removably inserted into the mounting hole 322 and the pin hole 311, thereby facilitating the mounting of the clamping portion 310 on the clamping base 320. In other embodiments, the clamping portion 310 is rotationally engaged with the clamping base 320 through other structures.

[0080] In some embodiments, the axis of the pin 321 is perpendicular to the plane where the two clamping portions 310 are located, and the two clamping portions 310 deflect around the axis of the pin 321 .

[0081] In some embodiments, the two clamping portions 310 can be hingedly connected to the clamping base 320, with the hinge point located between the proximal and distal ends of the clamping portion 310. The hinge point is the location of the axis A about which the clamping portion 310 deflects. In some embodiments, the hinge points at which the two clamping portions 310 are hinged to the clamping base 320 are the same, thereby reducing assembly difficulty and ensuring a secure connection between the two clamping portions 310.

[0082] In some embodiments, the first control line 110-1 is connected to the proximal end of the first clamping portion 310-1, and the second control line 110-2 is connected to the proximal end of the second clamping portion 310-2. In some embodiments, the proximal end and distal end of the first clamping portion 310-1 are respectively located on either side of the central axis BB of the clamping base 320, and the proximal end and distal end of the second clamping portion 310-2 are respectively located on either side of the central axis BB of the clamping base 320, and the proximal end of the first clamping portion 310-1 and the proximal end of the second clamping portion 310-2 are respectively located on either side of the central axis BB of the clamping base 320.

[0083] By arranging the hinge point between the distal end and the proximal end of the clamping portion, the hook at the proximal end of the clamping portion can achieve a locking function. For more information about the hook, see the relevant description of Figures 3-6 below.

[0084] As shown in FIG2 , in some embodiments, the clamping base 320 includes a limiting portion 323. The limiting portion 323 is configured to limit the deflection angle of at least one of the two clamping portions 310 (e.g., the first clamping portion 310-1 and the second clamping portion 310-2) relative to the clamping base 320. For example, the limiting portion 323 is configured to limit the deflection angle of the first clamping portion 310-1 and / or the second clamping portion 310-2. In some embodiments, the limiting portion 323 forms a stop by contact during the process of the clamping portion 310 deflecting toward the direction D1 approaching the central axis BB of the clamping base 320 and / or deflecting in the direction D2 away from the central axis BB of the clamping base 320, thereby preventing the clamping portion 310 from further deflecting, thereby limiting the deflection angle of the clamping portion 310. The clamping base 320 limits the deflection angle of the clamping portion 310 through the limiter 323. When the two clamping portions 310 deflect in the same direction, the clamping portion 310 is prevented from deflecting too much and exceeding the target deflection angle range, thereby preventing the clamping portion 310 from accurately aligning with the wound 410 in the tissue 400. Furthermore, by limiting the deflection of the clamping portion 310 to a specific angle range, the limiter 323 prevents accidents such as scratching the endoscope channel or other unexpected accidents.

[0085] As shown in Figures 2 to 4, in some embodiments, the stopper 323 is located between the two clamping portions 310. Each of the two clamping portions 310 includes a stopper 312. When the clamping portion 310, which is deflected in the direction D1 approaching the central axis BB of the clamping base 320, reaches a predetermined position, the stopper 312 contacts the stopper 323 and stops. In some embodiments, the predetermined position includes the position of the central axis BB of the clamping base 320. When the clamping portion 310 is deflected in the direction D1 approaching the central axis BB of the clamping base 320 to a position collinear with the central axis BB of the clamping base 320, the stopper 312 contacts the stopper 323 and stops. In some embodiments, the predetermined position includes a position at a predetermined angle relative to the central axis BB of the clamping base 320. The predetermined angle ranges from 0 to 30 degrees. For example, the preset angle is 10°. When the clamping portion 310 deflects in the direction D1 approaching the central axis BB of the clamping base 320 to a position 10° from the central axis BB of the clamping base 320, the stop portion 312 contacts the limiting portion 323 to stop the position. By positioning the limiting portion 323 between the two clamping portions 310 and contacting the clamping portion 310 to stop the position when the clamping portions 310 deflect inward, the clamping portions 310 can be prevented from excessively deflecting in the direction D1 approaching the central axis BB of the clamping base 320. This prevents the clamping directions of the two clamping portions 310 from being misaligned with the wound 410, thereby preventing the clamping from failing. This improves the positioning accuracy of the clamping portions 310 facing the wound 410 during deflection. Furthermore, the limiting portion 323 prevents the angle between the two clamping portions 310 from decreasing, thereby preventing the wound 410 from being effectively clamped.

[0086] In some embodiments, a limiting portion 323 is disposed between the two clamping portions 310. When either clamping portion 310 deflects to the position of the limiting portion 323, the limiting portion 323 can restrict further deflection. In some embodiments, the limiting portion 323 is disposed at a predetermined angle relative to the central axis BB of the clamping base 320. The limiting portion 323 only limits deflection of one of the two clamping portions 310. For example, when one of the two clamping portions 310 deflects to the position of the limiting portion 323, it abuts against the limiting portion 323 and stops deflecting. When the other clamping portion 310 deflects toward the limiting portion 323, due to certain factors (constraints of the control line or obstruction of tissue), the other clamping portion 310 stops deflecting before contacting the limiting portion 323. Therefore, the limiting portion only limits the position of one of the two clamping portions 310.

[0087] In some embodiments, a stopper 323 is provided at the distal end of the clamping base 320. In some embodiments, the distal end of the clamping base 320 includes a mounting slot 324. The stopper 323 is constructed as a sheet-like structure and is removably secured within the mounting slot 324. In some embodiments, the mounting slot 324 communicates with the mounting hole 322 of the clamping base 320, allowing the pin 321 connecting the clamping portion 310 and the clamping base 320 to pass through the mounting slot 324 and into the mounting hole 322, thereby reducing assembly difficulty. In some embodiments, the stopper 323 may be a protrusion or other structure at the distal end of the clamping base 320.

[0088] Figure 5A is a schematic diagram of the clamp device 300 and the conveying device 200 shown in some embodiments of the present specification; Figure 5B is a decomposed schematic diagram of the clamp device 300 and the conveying device 200 shown in some embodiments of the present specification; Figure 6 is a structural schematic diagram of the control line 110 shown in some embodiments of the present specification.

[0089] As shown in Figures 5A and 5B, in some embodiments, the clip device 10 further includes a delivery device 200, which includes a sheath 210 and a control wire 110 disposed within the sheath 210. The control wire 110 is a metal wire used to operate the clamping portion 310. In some embodiments, the control wire 110 includes a first control wire 110-1 and a second control wire 110-2. The two clamping portions 310 include a first clamping portion 310-1 and a second clamping portion 310-2. The first control wire 110-1 is releasably connected to the first clamping portion 310-1, and the second control wire 110-2 is releasably connected to the second clamping portion 310-2. "Releasably connected" refers to the state in which two components remain connected when a preset requirement is met (e.g., when the external force is less than a preset threshold), and release and separate when the preset requirement is not met (e.g., when the external force is greater than a preset threshold). The first control line 110-1 referred to in this specification refers to one of the two control lines 110, and the second control line 110-2 refers to the other of the two control lines 110. These are not limited to the specific control lines indicated in the accompanying drawings. Similarly, the first clamping portion 310-1 refers to one of the two clamping portions 310, and the second clamping portion 310-2 refers to the other of the two clamping portions 310. These are not limited to the specific clamping portions indicated in the accompanying drawings.

[0090] In some embodiments, the first control line moves from the distal end to the proximal end, controlling the first clamping portion to deflect in a direction away from the central axis BB of the clamp seat 320, and the second control line moves from the distal end to the proximal end, controlling the second clamping portion to deflect in a direction close to the central axis BB of the clamp seat, and the clamping portion is in an open state. In some embodiments, the maximum angle α formed after the first clamping portion and the second clamping portion are opened is less than 170° to avoid the first clamping portion 310-1 and the second clamping portion 310-2 from opening too wide and damaging the endoscope channel (or forceps channel, etc.). For example, the maximum angle α formed after the first clamping portion 310-1 and the second clamping portion 310-2 are deflected includes but is not limited to 120°, 130°, 145°, 150°, 160°, etc.

[0091] As shown in Figures 3 to 6, in some embodiments, the clamping portion 310 includes a hook 313 disposed at the proximal end of the clamping portion 310, and the control line 110 includes a hook 111 disposed at the distal end of the control line 110. The hook 313 cooperates with the hook 111, and the clamping portion 310 and the control line 110 are releasably connected. In some embodiments, when the control line 110 moves from the distal end to the proximal end, causing the hook 313 to deform, displace, or break, the connection between the hook 111 and the hook 313 is released, and the connection between the control line 110 and the clamping portion 310 is released.

[0092] In some embodiments, the clamping portion 310 includes a locked portion 315, and the clamping seat 320 includes a locking portion 326. The locked portion 315 is configured such that when the control line 110 moves from the distal end to the proximal end to close the two clamping portions 310, the locked portion 315 extends axially to mate with the locking portion 326, thereby locking the clamping device 300. In some embodiments, the clamping portion 310 includes a hook 313 provided at its proximal end. The hook 313 constitutes the locked portion 315, and the distal end of the clamping seat 320 constitutes the locking portion 326. When the control line 110 moves from the distal end to the proximal end to close the two clamping portions 310, a portion of the hook 313 deforms, causing its axial length to increase to the interior of the clamping seat 320, thereby forming a mate with the clamping seat 320, thereby locking the clamping device 300. The locking of the locked portion 315 and the locking portion 326 is controlled by axial force, without the need for additional force and action in other directions, which simplifies the structure and operation of the clip device 300 and reduces the probability of failure during the locking process.

[0093] In some embodiments, the control line 110 and the hook 313 are releasably connected. After the clip device 300 is locked, the control line 110 and the hook 313 are released.

[0094] FIG. 7 is a schematic diagram illustrating the deflection of the clip instrument 10 according to some embodiments of the present disclosure.

[0095] As shown in FIG7 , in some embodiments, the two clamping portions 310 deflect in the same direction about an axis A under the action of the first control line 110-1 and the second control line 110-2, wherein the axis A is perpendicular to the plane in which the two clamping portions 310 are located. In some embodiments, the first control line 110-1 pushes the first clamping portion 310-1 from the proximal end to the distal end to deflect it in a direction D2 away from the central axis BB of the clamping base 320, and the second control line 110-2 pulls the second clamping portion 310-2 from the distal end to the proximal end to deflect it in a direction D1 toward the central axis BB of the clamping base 320. As a result, the first clamping portion 310-1 and the second clamping portion 310-2 deflect in the same direction about the axis A. Specifically, the distal end of the first control line 110-1 is connected to the proximal end of the first clamping portion 310-1. When the first control line 110-1 moves from the proximal end to the distal end, the proximal end of the first clamping portion 310-1 is subjected to a thrust, causing the first clamping portion 310-1 to deflect around the pin 321 in a direction D2 away from the central axis BB of the clamping seat 320. The distal end of the second control line 110-2 is connected to the proximal end of the second clamping portion 310-2. When the second control line 110-2 moves from the distal end to the proximal end, the proximal end of the second clamping portion 310-2 is subjected to a tensile force, causing the second clamping portion 310-2 to deflect around the pin 321 in a direction D1 toward the central axis BB of the clamping seat 320. Controlling the deflection of the first clamping portion 310-1 by the first control line 110-1 and the deflection of the second clamping portion 310-2 by the second control line 110-2 makes operation simple and quick. Furthermore, the movements of the first clamping portion 310-1 and the second clamping portion 310-2 do not interfere with each other, so the operator can adjust the first clamping portion 310-1 and the second clamping portion 310-2 to deflect in sequence or synchronously according to actual conditions, making the operation more flexible.

[0096] In some embodiments, the first control line 110-1 can control the deflection angle of the first clamping portion 310-1, and the second control line 110-2 can control the deflection angle of the second clamping portion 310-2. In some embodiments, the deflection angles of the first clamping portion 310-1 and the second clamping portion 310-2 are the same. In some embodiments, the deflection angles of the first clamping portion 310-1 and the second clamping portion 310-2 are different. By adjusting the deflection angles of the first clamping portion 310-1 and the second clamping portion 310-2 respectively, the operator can make the clamping space between the first clamping portion 310-1 and the second clamping portion 310-2 closer to the size of the wound 410, thereby achieving more precise clamping of the wound 410.

[0097] In some embodiments, the maximum angle β formed by the first clamping portion 310-1 and the second clamping portion 310-2 after deflection is less than 170° to prevent the first clamping portion 310-1 and the second clamping portion 310-2 from opening too wide and damaging the endoscope channel or the sheath 210. For example, the maximum angle β formed by the first clamping portion 310-1 and the second clamping portion 310-2 after deflection includes but is not limited to 120°, 130°, 145°, 150°, 160°, etc.

[0098] In some embodiments, the control device 100 includes a control handle 120, which is used for an operator to manipulate the control wire 110. For example, by moving the control handle 120, the control wire 110 is pulled to move the control wire 110 from the distal end to the proximal end and / or from the proximal end to the distal end relative to the sheath 210. In some embodiments, the control device 100 includes two control handles 120, with a first control wire 110-1 and a second control wire 110-2 being controlled by the two control handles 120, respectively. For more embodiments of the two control handles 120, see FIG9 and its related description.

[0099] FIG. 8A is a schematic diagram illustrating the deflection of a clip instrument 10 according to some embodiments of the present specification.

[0100] As shown in FIG8A , in some embodiments, the two clamping portions 310 deflect in the same direction around the axis A under the action of the first control line 110-1 or the second control line 110-2, wherein the axis A is perpendicular to the plane where the two clamping portions 310 are located. In some embodiments, when the distal end of the first clamping portion 310-1 is subjected to an external force, it deflects in a direction D2 away from the central axis BB of the clamping seat 320, driving the second clamping portion 310-2 to deflect in a direction D1 toward the central axis BB of the clamping seat 320, while causing the second control line 110-2 to deform, causing the first clamping portion 310-1 and the second clamping portion 310-2 to deflect in the same direction around the axis A. The central axis BB of the clamping seat 320 refers to a line that passes through the center of the clamping seat cross section and extends in the axial direction. When the distal end of the first clamping portion 310-1 is subjected to an external force and deflects in a direction D2 away from the central axis BB of the clamping base 320, the first clamping portion 310-2 can be directly or indirectly driven to deflect in a direction D1 toward the central axis BB of the clamping base 320. For example, after the first clamping portion 310-1 is deflected, it abuts against the second clamping portion 310-2, thereby directly driving the deflection of the second clamping portion 310-2. For another example, after the first clamping portion 310-1 is deflected, it abuts against the second control line 110-2, and the second control line 110-2 drives the second clamping portion 310-2 to deflect, thereby indirectly driving the deflection of the second clamping portion 310-2.

[0101] Specifically, when the distal end of the first clamping portion 310-1 abuts against an external object, the sheath 210 or the clamping portion 310 is controlled to move distally, so that the distal end of the first clamping portion 310-1 is subjected to pressure and deflected in a direction D2 away from the central axis BB of the clamping seat 320. The external object includes but is not limited to human tissue 400, a tissue 400 model, or other structures. When the first clamping portion 310-1 deflects in the direction D2 away from the central axis BB of the clamping seat 320, it can cause the second control line 110-2 to deform and drive the second clamping portion 310-2 to deflect in a direction D1 close to the central axis BB of the clamping seat 320, wherein the second control line 110-2 is deformed by abutting against the first clamping portion 310-1. By applying force to the first clamping portion 310-1 with an external object, the first clamping portion 310-1 deflects, and the deflection of the first clamping portion 310-1 drives the deflection of the second clamping portion 310-2. The operator does not need to manipulate the first and second clamping portions 310-1, 310-2; they can simply adjust the endoscope to achieve deflection of both clamping portions 310, simplifying the operation. Furthermore, the first clamping portion 310-1 can be deflected after contacting the edge of the wound 410, more accurately aligning the clamping space of the clamping portion 310 toward the wound 410, achieving precise positioning.

[0102] Similarly, in some embodiments, when the distal end of the second clamping portion 310-2 is subjected to external force, it deflects away from the central axis BB of the clamping base 320, causing the first control line 110-1 to deform and drive the first clamping portion 310-1 to deflect toward the central axis BB of the clamping base 320.

[0103] In some embodiments, the maximum angle β formed by the first clamping portion 310-1 and the second clamping portion 310-2 after deflection is less than 170° to prevent the first clamping portion 310-1 and the second clamping portion 310-2 from opening too wide and damaging the endoscope channel or the sheath 210. For example, the maximum angle β formed by the first clamping portion 310-1 and the second clamping portion 310-2 after deflection includes but is not limited to 120°, 130°, 145°, 150°, 160°, etc.

[0104] FIG8B is a partially enlarged schematic diagram of the clip instrument 10 according to some embodiments of FIG8A .

[0105] As shown in Figures 3, 6, and 8B, in some embodiments, the clamping portion 310 includes a contact portion 314. In some embodiments, the contact portion 314 includes, but is not limited to, a protrusion or depression provided on the outside of the clamping portion 310, or a local structure of the clamping portion 310 itself. The outside of the clamping portion 310 can refer to the side indicated by the arrow in the drawings.

[0106] In some embodiments, the distal ends of the control lines 110 each include a mating portion 112. In some embodiments, the mating portion 112 includes but is not limited to a depression or protrusion provided at the distal end of the control line 110 or a local structure of the control line 110 itself.

[0107] In some embodiments, when the first clamping portion 310-1 deflects in a direction D2 away from the central axis BB of the clamping base 320, the contact portion 314 of the first clamping portion 310-1 abuts the mating portion 112 of the second control line 110-2, causing the second control line 110-2 to deform. Specifically, the contact portion 314 of the first clamping portion 310-1 abuts the mating portion 112 of the second control line 110-2, and the first clamping portion 310-1 continues to deflect in a direction D2 away from the central axis BB of the clamping base 320, causing at least a portion of the distal end of the second control line 110-2 to be squeezed and deformed. After the second control line 110-2 is deformed, it drives the second clamping portion 310-2 to deflect in a direction D1 toward the central axis BB of the clamping base 320.

[0108] In some embodiments, after the first clamping portion 310-1 abuts the second control line 110-2 or the second clamping portion 310-2, the angle between the first clamping portion 310-1 and the second clamping portion 310-2 remains unchanged. Thus, the first clamping portion 310-1 and the second clamping portion 310-2 deflect as a whole while maintaining the same angle, so that the clamping space between the first clamping portion 310-1 and the second clamping portion 310-2 is aligned with the wound 410.

[0109] In some embodiments, the force range for deformation of the second control line 110 - 2 is 0.5 to 2 N. In some embodiments, the force range for deformation of the second control line 110 - 2 is 0.8 to 1.5 N. In some embodiments, the force range for deformation of the second control line 110 - 2 includes but is not limited to 0.5 N, 0.8 N, 1.0 N, 1.2 N, 1.5 N, 2 N, etc.

[0110] FIG8C is a partially enlarged schematic diagram of the clip device 10 according to other embodiments of FIG8A .

[0111] 8C , in some embodiments, the clamping portion 310 includes a contact portion 314 and a mating portion 112 . In some embodiments, the contact portion 314 is located at a shoulder of the clamping portion 310 , and the mating portion 112 is located at a hook 313 of the clamping portion 310 .

[0112] In some embodiments, when the first clamping portion 310-1 deflects in the direction D2 away from the central axis BB of the clamping seat 320, the contact portion 314 of the first clamping portion 310-1 abuts against the mating portion 112 of the second clamping portion 310-2, and / or the contact portion 314 of the second clamping portion 310-2 abuts against the mating portion 112 of the first clamping portion 310-1, so that the first clamping portion 310-1 pushes the second clamping portion 310-2 to deflect in the direction D2 away from the central axis BB of the clamping seat 320, and the second clamping portion 310-2 pushes the second control line 110-2 to be squeezed and deformed, thereby achieving overall deflection of the clamping portion 310.

[0113] In some embodiments, similar to the relevant description of Figure 8B, after the first clamping portion 310-1 forms abutment with the second control line 110-2 or the second clamping portion 310-2, the angle between the first clamping portion 310-1 and the second clamping portion 310-2 remains unchanged.

[0114] 8D is a simplified cross-sectional view 1 of the clip instrument 10 according to some embodiments of FIG. 8A taken along line CC; FIG. 8E is a simplified cross-sectional view 2 of the clip instrument 10 according to some embodiments of FIG. 8A taken along line CC.

[0115] As shown in Figures 8A to 8D, in some embodiments, the sheath 210 includes a storage space 220 for accommodating the deformed second control line 110-2. In some embodiments, the sheath 210 has a hollow channel 213, at least a portion of which constitutes the storage space 220. The second control line 110-2 is not constrained within the storage space 220 and can deform under force. After the second control line 110-2 is deformed, it can be bent and stored within the storage space 220. In some embodiments, the sheath 210 includes a lubrication tube 221. The first control line 110-1 and the second control line 110-2 are accommodated within the lubrication tube 221. The hollow channel of the lubrication tube 221 constitutes the aforementioned storage space 220. The lubrication tube 221 can reduce the friction experienced by the control line 110 during movement.

[0116] In some embodiments, the radial dimension of the first control line 110-1 is φ1, the radial dimension of the second control line 110-2 is φ2, and the radial dimension of the accommodating space 220 is φ3. The ratio of the sum of the radial dimensions of the first control line 110-1 and the second control line 110-2 to the radial dimension of the accommodating space 220 is (φ1+φ2) / φ3=0.5. In some embodiments, the accommodating space 220 is formed within the sheath tube 210, and the radial dimension of the accommodating space 220 is equal to the inner diameter of the sheath tube 210. In other embodiments, the accommodating space 220 is formed within the lubricating tube 221, and the radial dimension of the accommodating space 220 is equal to the inner diameter of the lubricating tube 221.

[0117] In some embodiments, the radial dimension of the first control wire 110-1 is in the range of 0.2mm≤φ1≤1.0mm, the radial dimension of the second control wire 110-2 is in the range of 0.2mm≤φ2≤1.0mm, and the radial dimension of the accommodating space 220 is in the range of 0.4mm≤φ3≤2.0mm. In some embodiments, the radial dimension φ1 of the first control wire 110-1 is 0.3mm, the radial dimension φ2 of the second control wire 110-2 is 0.3mm, and the radial dimension φ3 of the accommodating space 220 is 1.2mm. Under these dimensional conditions, the first control wire 110-1 or the second control wire 110-2 has sufficient space to deform, and the deformed and bent first control wire 110-1 or second control wire 110-2 can be accommodated within the accommodating space 220.

[0118] In some embodiments, the control device 100 includes a control handle 120, and the first control line 110-1 and the second control line 110-2 are simultaneously controlled by the control handle 120. In some embodiments, the control device 100 includes two control handles 120, and the first control line 110-1 and the second control line 110-2 are respectively controlled by the two control handles 120. For more embodiments of the control handle 120, please refer to Figures 9 and 10 and the related descriptions.

[0119] FIG9 is a schematic diagram of a control device 100 according to some embodiments of the present specification.

[0120] As shown in Figures 7 to 9, in some embodiments, the control device 100 includes a first control handle 120-1 and a second control handle 120-2. The first control handle 120-1 is connected to the distal end of the first control wire 110-1, and the second control handle 120-2 is connected to the distal end of the second control wire 110-2. During clinical operation, the operator controls the two control wires 110 separately through the first control handle 120-1 and the second control handle 120-2, so that the movement of the two control wires 110 is independent of each other. The operator further controls the two clamping parts 310 separately through the two control wires 110, so that the deflection of the two clamping parts 310 does not interfere with each other, thereby performing operations such as opening, overall deflection, locking, closing, and releasing, and the operation method is more flexible.

[0121] In some embodiments, a first catheter 211 and a second catheter 212 are independently provided within the sheath 210. The first catheter 211 extends from the first control handle 120-1 to the distal end of the sheath 210 (e.g., to the proximal end of the accommodation space 220), and the second catheter 212 extends from the second control handle 120-2 to the distal end of the sheath 210 (e.g., to the proximal end of the accommodation space 220). The first control wire 110-1 is movably disposed within the first catheter 211, and the second control wire 110-2 is movably disposed within the second catheter 212. The first control handle 120-1 controls the movement of the first control wire 110-1 within the first catheter 211, and the second control handle 120-2 controls the movement of the second control wire 110-2 within the second catheter 212. The first control line 110 - 1 and the second control line 110 - 2 are separated by providing the first catheter 211 and the second catheter 212 , thereby preventing the first control line 110 - 1 and the second control line 110 - 2 from being entangled during movement, thereby ensuring a smooth operation.

[0122] In some embodiments, the first control handle 120-1 controls the first clamping portion 310-1 to deflect about the axis A via the first control wire 110-1. For example, when the first control handle 120-1 moves from the distal end to the proximal end, the first control wire 110-1 moves from the distal end to the proximal end, thereby causing the first clamping portion 310-1 to deflect toward the central axis BB of the clamping base 320. For another example, when the first control handle 120-1 moves from the proximal end to the distal end, the first control wire 110-1 moves from the proximal end to the distal end, thereby causing the first clamping portion 310-1 to deflect away from the central axis BB of the clamping base 320.

[0123] In some embodiments, the second control handle 120-2 controls the second clamping portion 310-2 to deflect about the axis A via the second control wire 110-2. For example, when the second control handle 120-2 moves from the distal end to the proximal end, the second control wire 110-2 moves from the distal end to the proximal end, thereby causing the second clamping portion 310-2 to deflect toward the central axis BB of the clamping base 320. For another example, when the second control handle 120-2 moves from the proximal end to the distal end, the second control wire 110-2 moves from the proximal end to the distal end, thereby causing the second clamping portion 310-2 to deflect away from the central axis BB of the clamping base 320.

[0124] FIG10 is a schematic diagram of a control device 100 according to some embodiments of the present specification.

[0125] As shown in FIG10 , in some embodiments, the delivery device 200 includes a control handle 120, which is connected to a first control line 110-1 and a second control line 110-2. During clinical operation, when the operator moves the control handle 120, the first control line 110-1 and the second control line 110-2 move synchronously, causing the first clamping portion 310-1 and the second clamping portion 310-2 to deflect synchronously, making operation easier. When the clamping portion 310 is operated by a single control handle 120, the clamping portion 310 can be opened, locked, closed, and released. The same-direction deflection of the two clamping portions 310 can be caused by the distal end of the clamping portion 310 contacting the tissue 400 and receiving force.

[0126] In some embodiments, a first catheter 211 and a second catheter 212 are disposed within the sheath 210, and the proximal ends of the first catheter 211 and the second catheter 212 are merged into a single channel 213. The proximal ends of the first control line 110-1 and the second control line 110-2 are merged together and accommodated within the channel 213. The remaining portion of the first control line 110-1 is movably disposed within the first catheter 211, and the remaining portion of the second control line 110-2 is movably disposed within the second catheter 212 to prevent entanglement during control.

[0127] In some embodiments, the control handle 120 simultaneously controls the first clamping portion 310-1 to deflect about the axis A via the first control line 110-1 and the second control line 110-2. For example, when the control handle 120 moves from the proximal end to the distal end, the first control line 110-1 and the second control line 110-2 simultaneously move from the proximal end to the distal end, thereby causing the first clamping portion 310-1 and the second clamping portion 310-2 to simultaneously deflect in a direction away from the central axis BB of the clamping base 320, and the two clamping portions 310 are opened. For another example, when the control handle 120 moves from the distal end to the proximal end, the first control line 110-1 and the second control line 110-2 simultaneously move from the distal end to the proximal end, thereby causing the first clamping portion 310-1 and the second clamping portion 310-2 to simultaneously deflect in a direction toward the central axis BB of the clamping base 320, and the two clamping portions 310 are closed.

[0128] Figure 11 is a partially enlarged schematic diagram of a clip device 10 according to some embodiments of the present specification. Figure 12 is a structural schematic diagram of a connecting pin 230 according to some embodiments of the present specification.

[0129] As shown in Figures 4, 11, and 12, in some embodiments, the clamping base 320 is rotatable about the axis of the sheath tube 210. The axis of the sheath tube 210 refers to the central axis of the sheath tube 210 in its extending direction. The clamping base 320 is rotatably connected to the sheath tube 210. By adjusting the rotation angle of the clamping base 320, the closing direction of the two clamping portions 310 can be aligned with the closing direction of the wound 410 in the tissue 400, thereby effectively clamping the wound 410 in the tissue 400.

[0130] In some embodiments, the delivery device 200 further includes a connecting pin 230, a connecting recess (not shown) is provided at the distal end of the sheath tube 210, and the clamp seat 320 is provided with a connecting hole 325. The distal end of the connecting pin 230 passes through the connecting hole 325 and extends into the connecting recess, thereby connecting the clamp seat 320 to the sheath tube 210 and limiting the axial displacement between the clamp seat 320 and the sheath tube 210. In some embodiments, the connecting recess can be an annular groove on the inner wall of the sheath tube 210. After the distal end of the connecting pin 230 extends into the connecting recess, it can slide relative to the annular groove, thereby enabling the clamp seat 320 to rotate around the axis of the sheath tube 210. In other embodiments, the connecting recess can also be a through hole or a dot-shaped groove on the side wall of the sheath tube 210.

[0131] In some embodiments, the connecting pin 230 includes at least two arms 231, the proximal ends of the arms 231 of the connecting pin 230 are connected as a whole, and the distal ends of the arms 231 are independent of each other and form a bending portion 232, and the bending portion 232 is used to pass through the connecting hole 325 of the clamp seat 320 and the connecting recess of the sheath tube 210 to connect the clamp seat 320 and the sheath tube 210.

[0132] In some embodiments, after the control line 110 is disconnected from the clamping portion 310, it continues to move from the distal end to the proximal end. During this movement, the hook 111 of the control line 110 hooks onto the proximal end of the connecting pin 230, thereby pulling the connecting pin 230 out of the connecting recess and the connecting hole 325, thereby separating the clamp base 320 from the sheath tube 210. In some embodiments, the distal end of the connecting pin 230 is separated from the connecting recess or the connecting hole 325 by deformation, displacement, or fracture, thereby separating the clamp base 320 from the sheath tube 210.

[0133] Figure 13 is a schematic diagram of the open state of the clip instrument 10 according to some embodiments of the present specification. Figure 14 is a schematic diagram of the deflected state of the clip instrument 10 according to some embodiments of the present specification. Figure 15 is a schematic diagram of the deflected state of the clip instrument 10 according to other embodiments of the present specification.

[0134] In some embodiments, the clamp instrument 10 includes an open state. The open state is a state in which the distal ends of the two clamping parts 310 of the clamp device 300 are separated. Among them, the open state can include a straight-open state and a side-open state. In the straight-open state, the two clamping parts 310 are not deflected, and the two clamping parts 310 can be axially symmetrical with the central axis BB of the clamp seat as the symmetry axis, as shown in Figure 13. In the side-open state, the two clamping parts 310 deflect in the same direction around the axis A, as shown in Figures 14 and 15. For the description of the two clamping parts 310 deflecting in the same direction around the axis A, please refer to the relevant description of Figure 8A above.

[0135] In some embodiments, since the movements of the two control handles 120 are relatively independent, the movements of the corresponding two control lines 110 are also independent of each other, and thus the movements of the two clamping parts 310 are also independent of each other. When the control handle 120 moves toward the distal end, it drives its corresponding control line 110 to move toward the distal end, and the corresponding clamping part 310 deflects around the axis A in a direction away from the center axis BB of the clamp seat. When the control handle 120 moves toward the proximal end, it drives its corresponding control line 110 to move toward the proximal end, and the corresponding clamping part 310 deflects around the axis A in a direction close to the center axis BB of the clamp seat. When forces of different sizes and directions are applied to the control handle 120, the clamping part 310 can rotate around the axis A, thereby enabling the clamp instrument 10 to achieve a transition between a straight-open state, a side-open state, and a closed state.

[0136] In some embodiments, when the first control line 110-1 and / or the second control line 110-2 act on the two clamping portions 310 in a first predetermined manner, the clamp device 10 switches from a straight-open state to a sideways-open state. The first predetermined manner includes at least one of the first control line 110-1 and the second control line 110-2 moving distally. For example, the distal movement of the first control line 110-1 causes the first clamping portion 310-1 to deflect in a direction D2 away from the central axis BB of the clamp base 320. The distal movement of the second control line 110-2 is similar and will not be further described.

[0137] In some embodiments, the first preset manner includes: one of the first control line 110-1 and the second control line 110-2 moves distally, and the other of the first control line 110-1 and the second control line 110-2 moves proximally, thereby driving the first clamping portion 310-1 and the second clamping portion 310-2 to deflect in the same direction about the axis A. For example, when the first control line 110-1 moves distally, driving the first clamping portion 310-1 to deflect in a direction D2 away from the central axis BB of the clamping base 320, at the same time, the second control line 110-2 moves proximally, driving the second clamping portion 310-2 to deflect in a direction D1 toward the central axis BB of the clamping base 320, thereby driving the first clamping portion 310-1 and the second clamping portion 310-2 to deflect in the same direction about the axis A, thereby switching the clamp instrument 10 to the side-open state.

[0138] In some embodiments, when the first control line 110-1 and / or the second control line 110-2 acts on the two clamping parts 310 in a second preset manner, the clamp instrument 10 switches from the side-opening state to the straight-opening state. The second preset manner includes: the other of the first control line 110-1 and the second control line 110-2 moves distally. For example, the first control line 110-1 moves distally to control the clamp instrument 10 to switch from the straight-opening state to the side-opening state; the second control line 110-2 moves distally to switch the clamp instrument 10 from the side-opening state to the straight-opening state. The second control line 110-2 moves distally, driving the second clamping part 310-2 to deflect in the opposite direction D1 away from the central axis BB of the clamp seat 320.

[0139] FIG. 16A is a schematic diagram of the clip instrument 10 in a clamped state according to some embodiments of the present specification.

[0140] In some embodiments, as shown in FIG16A , the clip device 10 further includes a closed state. The closed state refers to the state in which the distal ends of the two clamping portions 310 of the clip device 300 are in contact, and may also be referred to as the clamped state. In some embodiments, when the first control line 110-1 and / or the second control line 110-2 act on the two clamping portions 310 in a third predetermined manner, the clip device 10 switches from the side-open state to the closed state. The third predetermined manner includes the distal ends of the first control line 110-1 and the second control line 110-2 moving toward the proximal end, whichever is more distal. For example, as shown in Figure 14, the distal end of the first control line 110-1 is located further distally than the distal end of the second control line 110-2. The first control line 110-1 moves proximally, driving the first clamping portion 310-1 to deflect in the opposite direction D2 of the direction close to the central axis BB of the clamp seat 320, so that the distal end of the first clamping portion 310-1 can move to the second clamping portion 310-2, so that the clamp instrument 10 is in a closed state.

[0141] In some embodiments, the third preset mode further includes: the distal ends of the first control line 110-1 and the second control line 110-2, which are located closer to the proximal end, also move proximally. For example, as shown in FIG14 , the distal end of the second control line 110-2 is located closer to the proximal end than the distal end of the first control line 110-1. The second control line 110-2 moves proximally, driving the second clamping portion 310-2 to deflect in a direction D1 closer to the central axis BB of the clamping base 320, thereby causing the first clamping portion 310-1 and the second clamping portion 310-2 to move relative to each other until their distal ends contact, thereby placing the clamp device 10 in a closed state.

[0142] In some embodiments, as shown in FIG16A , the clip device 10 also includes a closed state. In some embodiments, when the first control line 110-1 and the second control line 110-2 act on the two clamping portions 310 in a fourth predetermined manner, the clip device 10 switches from the open state to the closed state. The fourth predetermined manner includes proximal movement of the first control line 110-1 and the second control line 110-2. For example, the proximal movement of the first control line 110-1 causes the first clamping portion 310-1 to deflect in a direction opposite to the direction D2 approaching the central axis BB of the clamping base 320. The proximal movement of the second control line 110-2 causes the second clamping portion 310-2 to deflect in a direction D1 approaching the central axis BB of the clamping base 320. As a result, the first clamping portion 310-1 and the second clamping portion 310-2 move relative to each other until their distal ends contact, placing the clip device 10 in the closed state.

[0143] In some embodiments, as shown in FIG16A , the clip device 10 further includes a closed state. In some embodiments, when the first control line 110-1 and / or the second control line 110-2 act on the two clamping portions 310 in a fifth preset manner, the clip device 10 switches from the closed state to the sideways-open state. The fifth preset manner includes: one of the first control line 110-1 and the second control line 110-2 moves distally. For example, the clip device 10 is in the closed state, with the distal ends of the two clamping portions 310 in contact. Subsequently, the first control line 110-1 moves distally, causing the first clamping portion 310-1 to deflect in a direction D2 away from the central axis BB of the clamp base 320, causing the distal end of the first clamping portion 310-1 to separate from the distal end of the second clamping portion 310-2, thereby switching the clip device 10 from the closed state to the sideways-open state.

[0144] In some embodiments, the fifth preset method also includes: one of the first control line 110-1 and the second control line 110-2 moves distally by a first movement amount, and the other of the first control line 110-1 and the second control line 110-2 moves distally by a second movement amount, and the first movement amount is greater than the second movement amount. For example, the clamp instrument 10 is in a closed state, and the two clamping parts 310 are in contact at the distal ends. Then, the first control line 110-1 moves distally by a first amount, driving the first clamping part 310-1 to deflect in the direction D2 away from the central axis BB of the clamp seat 320. The second control line 110-2 moves distally by a second amount, driving the second clamping part 310-2 to deflect in the opposite direction of the direction D1 away from the central axis BB of the clamp seat 320. Since the first amount of movement is greater than the second amount of movement, the deflection angle of the first clamping part 310-1 can be greater than the deflection angle of the second clamping part 310-2, thereby separating the distal end of the first clamping part 310-1 from the distal end of the second clamping part 310-2, and the clamp instrument 10 switches from a closed state to a side-open state.

[0145] For more details on how the control line 110 drives the clamping portion 310 to achieve deflection, please refer to the relevant descriptions of Figures 7 to 8C above.

[0146] Figure 16B is a partially enlarged schematic diagram of the clamp instrument 10 shown in some embodiments of Figure 16A. Figure 17A is a schematic diagram of the locked state of the clamp instrument 10 and the released state of the clamping part and the control line shown in some embodiments of this specification. Figure 17B is a partially enlarged schematic diagram of the clamp instrument 10 shown in some embodiments of Figure 17A. Figure 18A is a schematic diagram of the released state of the clamp device 300 and the conveying device 200 shown in some embodiments of this specification. Figure 18B is a partially enlarged schematic diagram of the clamp instrument 10 shown in some embodiments of Figure 18A. Figures 13 to 18B are schematic diagrams of the movement process of the clamp instrument 10 shown in some embodiments of this specification. The following will introduce the operation steps of the clamp instrument 10 performing opening, overall deflection, closing, locking, and release in conjunction with Figures 13 to 18B, but the following operation steps are only for illustration, and the operation process is not limited to only following the following steps.

[0147] Step 1, as shown in Figure 13, after the clamping portion 310 is transported to the target position (for example, near the wound 410 of the tissue 400) by the transport device 200, the first clamping portion 310-1 and the second clamping portion 310-2 are opened. In some embodiments, the first control line 110-1 is connected to the first hook 313 of the first clamping portion 310-1, and the first control line 110-1 moves from the proximal end to the distal end, thereby driving the first clamping portion 310-1 to deflect around the axis A in a direction away from the central axis BB of the clamping seat 320. Correspondingly, the second control line 110-2 is connected to the second hook 313 of the second clamping portion 310-2, and the second control line 110-2 moves from the proximal end to the distal end, thereby driving the second clamping portion 310-2 to deflect around the axis A in a direction away from the central axis BB of the clamping seat 320. At this time, the first clamping portion 310-1 and the second clamping portion 310-2 are away from each other and are in an open state. A clamping space is formed between the first clamping portion 310 - 1 and the second clamping portion 310 - 2 , which can clamp the wound 410 of the tissue 400 .

[0148] In step 2, after the clamping portion 310 is opened, the relative position between the wound 410 of the tissue 400 and the clamping space is determined, and the clamping portion 310 is controlled to deflect as a whole to a position facing the wound 410 according to the relative position.

[0149] As shown in FIG14 , in some embodiments, the control device 100 includes two control handles 120. When the first control handle 120-1 controls the first control line 110-1 to move from the proximal end to the distal end, the proximal end of the first clamping portion 310-1 is pushed, causing the first clamping portion 310-1 to deflect around the pin 321 in a direction D2 away from the central axis BB of the clamping base 320. The distal end of the second control line 110-2 is connected to the proximal end of the second clamping portion 310-2. When the second control line 110-2 moves from the distal end to the proximal end, the proximal end of the second clamping portion 310-2 is pulled, causing the second clamping portion 310-2 to deflect around the pin 321 in a direction D1 toward the central axis BB of the clamping base 320. After the overall deflection, the clamping direction of the clamping portion 310 can be directly facing the wound 410, achieving effective clamping.

[0150] As shown in FIG15 , in other embodiments, the position of the clamp device 300 is adjusted so that one of the clamping portions 310 of the clamp device 300 abuts against the edge of the wound 410 in the tissue 400. When the distal end of the first clamping portion 310-1 abuts the tissue 400, the sheath 210 or the clamping portion 310 is controlled to move distally, causing the distal end of the first clamping portion 310-1 to be compressed and deflected in a direction D2 away from the central axis BB of the clamp base 320. As the first clamping portion 310-1 deflects in the direction D2 away from the central axis BB of the clamp base 320, the contact portion 314 of the first clamping portion 310-1 abuts against the mating portion 112 of the second control wire 110-2. The first clamping portion 310-1 continues to deflect in the direction D2 away from the central axis BB of the clamp base 320, causing at least a portion of the distal end of the second control wire 110-2 to be squeezed and deformed. After the second control line 110-2 is deformed, it drives the second clamping portion 310-2 to deflect in the direction D1 close to the central axis BB of the clamping base 320. After the overall deflection, the clamping direction of the clamping portion 310 can face the wound 410, achieving effective clamping.

[0151] In some embodiments of Figures 14 and 15, when the second clamping portion 310-2 deflects in the direction D1 close to the central axis BB of the clamping seat 320 until it abuts against the limiting portion 323, the second clamping portion 310-2 stops deflecting to avoid excessive deflection of the second clamping portion 310-2 resulting in clamping failure.

[0152] In step three, as shown in FIG. 16A and FIG. 16B , the clamping portion 310 is converted from an open state to a closed state to clamp the tissue 400 .

[0153] If the second clamping portion 310-2 abuts against the limiting portion 323, the first control line 110-1 is controlled by the control handle 120 to move from the distal end to the proximal end, so that the first clamping portion 310-1 deflects toward the direction close to the central axis BB of the clamping seat 320 until the first clamping portion 310-1 and the second clamping portion 310-2 form a closed state.

[0154] If the second clamping portion 310-2 is not in contact with the limiting portion 323, the control handle 120 is used to control the first control line 110-1 and the second control line 110-2 to move from the distal end to the proximal end, so that the first clamping portion 310-1 and the second clamping portion 310-2 are both deflected in the direction close to the central axis BB of the clamping seat 320 until the first clamping portion 310-1 and the second clamping portion 310-2 are closed.

[0155] When the first clamping portion 310 - 1 and the second clamping portion 310 - 2 are closed, the distal ends of the first clamping portion 310 - 1 and the second clamping portion 310 - 2 can receive a portion of the tissue 400 into the clamping space, thereby closing the wound 410 .

[0156] In step 4, as shown in Figures 17A and 17B, after the clamping portion 310 is closed, the control wire 110 continues to move from the distal end to the proximal end, causing the locked portion 315 of the clamping portion 310 to extend axially until it mates with the locking portion 326 of the clamping seat 320, thereby locking the clamping portion 310 within the clamping seat 320. In some embodiments, the movement of the control wire 110 from the distal end to the proximal end causes the hooks 313 of the two clamping portions 310 to deform, thereby increasing their axial length to the interior of the clamping seat 320 and mating with the locking portion 326 of the clamping seat 320, thereby locking the clamping portion 310 within the clamping seat 320.

[0157] After the clamping portion 310 is locked, the control line 110 continues to move from the distal end to the proximal end, thereby releasing the connection between the control line 110 and the clamping portion 310. In some embodiments, the movement of the control line 110 from the distal end to the proximal end causes the hook 313 to deform, displace, or break, thereby releasing the connection between the hook 111 and the hook 313, and releasing the connection between the control line 110 and the clamping portion 310.

[0158] Step five, as shown in Figures 18A and 18B, after the control line 110 is connected and released from the clamping portion 310, the control line 110 continues to move from the distal end to the proximal end. After the hook 111 at the distal end of the control line 110 cooperates with the connecting pin 230, it drives the bent portion 232 at the distal end of the connecting pin 230 to disengage from the connecting hole 325 of the clamp seat 320 and the connecting recess of the sheath tube 210. The connection between the clamp seat 320 and the sheath tube 210 is released. At this time, the connection between the clamp device 300 and the conveying device 200 is released.

[0159] Figure 19A is a schematic diagram of the structure of a first clamping portion according to some embodiments of the present specification. Figure 19B is a schematic diagram of the structure of a second clamping portion according to some embodiments of the present specification. Figure 19C is a schematic diagram of a clamping device in a closed state according to some embodiments of the present specification. Figure 19D is a partially enlarged schematic diagram of the clamping device according to some embodiments of Figure 19C. Figure 19E is a schematic diagram of a clamping device in a released state according to some embodiments of the present specification. Figure 19F is a partially enlarged schematic diagram of the clamping device according to some embodiments of Figure 19E.

[0160] In some embodiments, one of the first clamping portion 310-1 and the second clamping portion 310-2 includes a locking portion 350, and the other includes a locked portion 360. The locking portion 350 and the locked portion 360 are respectively disposed on opposite sides of the two clamping portions 310. The locking portion 350 has a locked state and a released state. In some embodiments, when the clamping device 300 is connected to the control line 110, the locking portion 350 and the locked portion 360 are able to move relative to each other, and the locking portion 350 is in the released state. When the connection between the clamping device 300 and the control line 110 is released, the locking portion 350 and the locked portion 360 engage and connect, and the locking portion 350 is in the locked state.

[0161] For example, as shown in Figures 19A and 19B, the first clamping portion 310-1 includes a locking portion 350, which may be groove-shaped, and the second clamping portion 310-2 includes a locked portion 360, which may be a boss-shaped structure that can match the groove-shaped locking portion 350, and the boss-shaped locked portion 360 can be inserted into the groove-shaped locking portion 350.

[0162] In some embodiments, when the clamp device 300 is connected to the control line 110, the clamp instrument 10 can perform operations such as opening, overall deflection, and closing through the control line 110. At this time, the locking portion 350 is in a released state, that is, the boss-shaped locked portion 360 can be inserted into the groove-shaped locking portion 350 or withdrawn from the groove-shaped locking portion 350, as shown in Figures 19C and 19D.

[0163] In some embodiments, when the connection between the clamp device 300 and the control line 110 is released, the locking portion is in a locked state, that is, the boss-shaped locked portion 360 can be engaged and connected in the groove-shaped locking portion 350, so that the first clamping portion 310-1 and the second clamping portion 310-2 are locked to each other and can no longer be opened, as shown in Figures 19E and 19F.

[0164] In some embodiments, the locking portion 350 includes a locking space for accommodating the locked portion 360, such as a groove, a through hole, or a blind hole. In some embodiments, when the clip device 300 is connected to the control line 110, the opening size of the locking space is larger than the size of the locked portion 360, so that the locked portion 360 can enter and exit the locking portion 350 without hindrance and will not interfere with each other, ensuring that the clip device 10 can open and close freely within a predetermined range without hindrance; when the connection between the clip device 300 and the control line 110 is released, the opening size of the locking space is smaller than the size of the locked portion 360, so that the locked portion 360 is engaged with the locking space, and the locked portion 360 and the locking portion 350 cannot move relative to each other, thereby maintaining the clip device 10 in a closed state.

[0165] In some embodiments, the surfaces that contact the locking portion 350 and the locked portion 360 when they are engaged can be set to matching inclined surfaces or smooth curved surfaces. The inclined surfaces or smooth curved surfaces can play a guiding role, thereby guiding the relative movement of the locking portion 350 and the locked portion 360.

[0166] In some embodiments, as shown in Figure 19F, during the release of the clamp device 300, the first control line 110-1 and the second control line 110-2 move proximally, and the proximal ends of the first clamping portion 310-1 and the second clamping portion 310-2 are deformed under the action of external force. During this deformation, the gap between the locking portion 350 on the first clamping portion 310-1 and the locked portion 360 on the second clamping portion 310-2 will gradually decrease, that is, the opening of the locking space of the locking portion 350 will gradually become smaller; when this deformation reaches a certain extent, the gap will completely disappear. At this time, it can be considered that the opening size of the locking space is smaller than the size of the locked portion 360, and the locking portion 350 and the locked portion 360 are tightly clamped together, thereby forming a stable locking state, effectively preventing the clamping portion 310 from further movement or loosening.

[0167] By providing a locking portion and a locked portion, the clamping portions will not easily separate during use, even if affected by external forces, thereby improving the stability and reliability of the clamp. The tight fit between the locking and locked portions allows the two clamping portions to remain in a fixed position in both the pre-closed and fully closed states, enhancing the clamping force while preventing potential safety hazards caused by accidental opening.

[0168] FIG20 is a schematic structural diagram of a clamp device 300 according to other embodiments of the present disclosure.

[0169] In some embodiments, at least one of the first clamping portion 310-1 and the second clamping portion 310-2 includes a piercing member 330. The piercing member 330 is a structure that enhances the clamping force by puncturing. In some embodiments, the piercing member 330 includes a piercing rod 332 and a piercing head 331 that are connected to each other. The piercing head 331 is connected to at least one of the first clamping portion 310-1 and the second clamping portion 310-2 via the piercing rod 332. When the clamp device 300 switches from an open state to a closed state, the piercing head 331 can contact the tissue clamped by the clamp device 300 before the clamp device 300 closes and pierce into the tissue, thereby enhancing the firm connection between the clamp device 300 and the tissue and preventing the clamped tissue from slipping when the clamp device 300 is closed and deflected.

[0170] In some embodiments, the puncturing head 331 includes a hook portion disposed toward the puncturing rod 332. For example, the hook portion may be a barb or a barbed structure. The hook portion is used to hook tissue toward the puncturing rod 332 to prevent the tissue from slipping out of the puncturing member 330, thereby further enhancing the clamping force of the clamp device 300.

[0171] In some embodiments, for any piercing member 330, the end of the piercing rod 332 away from the piercing head 331 is connected to one of the two clamping parts 310, and the piercing head 331 also includes a piercing portion, which faces the other of the two clamping parts 310. For example, the piercing portion can be provided on the first clamping part 310-1, which has a sharp end, and the end faces the second clamping part 310-2.

[0172] In some embodiments, the insertion portion includes a tip and a curved surface extending from the tip toward the hook portion. In some embodiments, the insertion portion includes a tip and multiple inclined surfaces extending from the tip toward the hook portion. This arrangement allows the insertion portion and the hook portion to smoothly connect, improving puncture effectiveness. Furthermore, the increased surface area in contact with tissue facilitates penetration, more evenly distributes force, and reduces the risk of tissue tearing.

[0173] Figure 21A is a schematic diagram of the structure of a piercing member 330 according to other embodiments of this specification. Figure 21B is a schematic diagram of the structure of a piercing member 330 according to other embodiments of this specification. Figure 21C is a schematic diagram of the structure of a piercing member 330 according to still other embodiments of this specification. Figure 21D is a schematic diagram of the structure of a piercing member 330 according to still other embodiments of this specification.

[0174] In some embodiments, the piercing member 330 may be disposed near the axis CC of the clamping portion 310 , ie, the piercing member 330 is disposed near the axis CC in the middle of the clamping portion 310 .

[0175] In some embodiments, as shown in FIG21A and FIG21B , on the same projection plane, the projection of the puncture head 331 along the first direction Z is located in a first region of the projection of the clamping portion 310 (e.g., the second clamping portion 310-2) along the first direction Z. The first region is a central region of the projection of the clamping portion 310 (e.g., the second clamping portion 310-2) along the first direction Z in a second direction Y. The second direction Y is the minor axis direction of the clamping portion 310 (e.g., the second clamping portion 310-2). The first direction Z is perpendicular to the minor and major axes of the clamping portion 310 (e.g., the second clamping portion 310-2). The major axis direction can be denoted as the third direction X. The central region refers to a predetermined range on both sides of the axis CC of the clamping portion 310 (e.g., the second clamping portion 310-2). For example, the width of the predetermined range in the second direction Y accounts for 30% to 50% of the width of the clamping portion 310 in the second direction Y.

[0176] In some embodiments, the end of the puncture rod 332 away from the puncture head 331 is connected to the middle region of the clamping portion 310 (such as the second clamping portion 310-2) along the second direction Y. It should be noted that the middle region connected to the puncture rod 332 is the middle region of the clamping portion 310, not the middle region of the projection of the clamping portion 310 mentioned above.

[0177] In some embodiments, as shown in Figures 21C and 21D , the end of the puncture rod 332 distal from the puncture head 331 is connected to a lateral region of the clamping portion 310 (e.g., the second clamping portion 310-2) along the second direction Y. The lateral region refers to a predetermined region on two lateral sides of the clamping portion 310 distributed along the second direction Y. This predetermined region may extend along the third direction X, with the length of this predetermined region in the third direction X accounting for 30-50% of the length of the clamping portion 310 in the third direction X. This predetermined region may be located closer to the distal end of the clamping portion 310. In some embodiments, the puncture rod 332 may be configured as a curve, such as a curve including at least one bend, which can be deformed appropriately to better conform to tissue contours. For more information, please refer to the description of Figure 21D .

[0178] In some embodiments, on the same projection plane, the projection of the puncture head 331 along the first direction Z is located in the second region of the projection of the clamping portion 310 (e.g., the second clamping portion 310-2) along the first direction Z. The second region is the lateral region of the projection of the clamping portion 310 (e.g., the second clamping portion 310-2) along the first direction Z in the second direction. The second direction Y is the minor axis of the clamping portion, and the first direction Z is perpendicular to both the minor and major axes of the clamping portion. The major axis can be referred to as the third direction X. For details on the lateral regions, please refer to the previous description.

[0179] In some embodiments, the end of the puncture rod 332 away from the puncture head 331 is connected to the side area of ​​the clamping portion 310 along the second direction Y. Therefore, the puncture member 330 can be made independently and then connected to the clamping portion 310, which is easy to process and manufacture.

[0180] In some embodiments, as shown in FIG21A , the piercing member 330-1 is disposed inside the clamping portion 310 (e.g., the second clamping portion 310-2) and near the distal end of the clamping portion 310. The piercing head 331 includes two symmetrically arranged hooking portions, giving the piercing head 331 an arrow shape. The hooking portions are distributed along the axis CC of the clamping portion 310. In some embodiments, the piercing member 330-1 may further include multiple hooking portions, which may be evenly or unevenly distributed along the circumference of the piercing rod 332, giving the distal end of the piercing member 330-1 a pyramidal shape.

[0181] In some embodiments, the piercing member 330-1 can be processed by a laser cutting machine with high molding stability; the second clamping portion 310-2 can be formed by stamping, and a punched hole can be punched near its distal end, and the piercing member 330-1 can be welded to the punched hole as a whole.

[0182] In some embodiments, the puncture member 330-1 can be manufactured independently and then connected to the clamping portion 310, which is easy to process; once the puncture member 330-1 passes through the tissue, the structure of its hooking portion can engage with the tissue more effectively, providing a stronger fixing force than a needle-shaped puncture device, reducing the risk of postoperative displacement.

[0183] In some embodiments, as shown in FIG21B , piercing member 330-2 is disposed inside clamping portion 310 (e.g., second clamping portion 310-2) and near the distal end of clamping portion 310. Piercing member 330 is also disposed near a side edge of clamping portion 310. Piercing head 331 includes two symmetrically arranged hooking portions, giving piercing head 331 an arrow shape. The hooking portions are distributed in a direction perpendicular to axis CC of clamping portion 310. In some embodiments, piercing member 330-2 may further include multiple hooking portions, which may be evenly or unevenly distributed circumferentially along piercing rod 332.

[0184] In some embodiments, the outer contour of the piercing member 330 - 2 can be formed on the second clamping portion 310 - 2 by stamping; and then the angle of the piercing member 330 - 2 can be bent from 180° to 90° using a bending tool.

[0185] In some embodiments, the puncture member 330-2 can be streamlined, with a sharp front end to ensure good penetration, and its side profile is a relatively smooth curve, thereby reducing resistance and tissue damage during insertion; the streamlined puncture member 330-2 can better disperse the force, reduce local pressure, and improve patient comfort through optimized mechanical design.

[0186] In some embodiments, as shown in FIG21C , piercing member 330-3 is disposed on the side of clamping portion 310 to facilitate manufacturing. Piercing head 331 may include a single hooking portion, giving piercing head 331 a barb shape. In some embodiments, piercing member 330-3 may also include two or more symmetrically arranged hooking portions, giving piercing member 330-3 an arrowhead or pyramidal shape. The two or more hooking portions may be distributed along axis CC of clamping portion 310 or in other directions. For example, the two or more hooking portions may be evenly or unevenly distributed around the circumference of piercing rod 332.

[0187] In some embodiments, the shape of the puncture member 330 - 3 may be reserved in the second clamping portion 310 - 2 ; and then the angle of the puncture member 330 - 3 may be bent from 180° to 90° using a bending tool.

[0188] In some embodiments, the piercing member 330-3 is formed on the side of the second clamping portion 310-2 and has a triangular pyramid shape with three inclined surfaces converging to a tip. This design increases the surface area in contact with the tissue, while the tip facilitates penetration. The triangular pyramid structure can distribute force more evenly when fixed, reducing the risk of tissue tearing.

[0189] In some embodiments, as shown in FIG. 21D , the piercing member 330 - 4 is disposed on a side of the clamping portion 310 , and the piercing rod 332 may be bent to form a hanging portion.

[0190] In some embodiments, the shape of the piercing member 330-3 is reserved in the second clamping portion 310-2; the angle of the piercing member 330-4 is then bent from 180° in the plane to 90° using a bending tool, and finally the piercing member 330-4 is corrected using a correction tool so that it fits closely to the contour of the second clamping portion 310-2.

[0191] In some embodiments, the piercing member 330-4 with a bent structure can be unfolded along the side wall of the second clamping portion 310-2, with a larger contact area with the tissue. At the same time, according to the different thickness or elasticity of the tissue, the piercing member 330-4 with a bent structure can be deformed appropriately to better fit the tissue contour.

[0192] FIG. 22 is a schematic diagram illustrating the height relationship between the piercing member 330 and the first clamping head 311 - 2 according to some embodiments of this specification.

[0193] In some embodiments, as shown in FIG22 , the first clamping portion 310-1 includes a first clamping arm 311-1 and a first clamping head 311-2, which are interconnected. The first clamping head 311-2 is disposed at the distal end of the first clamping arm 311-1. The free end of the first clamping head 311-2 extends radially inwardly of the clamp device 300. The piercing member 330 is disposed on the first clamping arm 311-1. In some embodiments, the ratio of the height H1 of the piercing member 330 to the height H of the first clamping head 311-2 is in a range of 1.2 to 3. In some embodiments, the ratio of the height H1 of the piercing member 330 to the height H of the first clamping head 311-2 is in a range of 1.5 to 2.5. In some embodiments, the ratio of the height H1 of the piercing member 330 to the height H of the first clamping head 311-2 is in a range of 1.8 to 2. Where H1 is the distance from the end of the piercing member 330 to the inner surface of the first clamping portion 310-1, and H is the distance from the end of the first clamping head 311-2 to the inner surface of the first clamping portion 310-1. In some embodiments, the second clamping portion 310-2 may include a second clamping arm and a second clamping head connected to each other, with the free end of the second clamping head extending radially inwardly along the clamp device. The piercing member 330 is disposed on the second clamping arm. In some embodiments, the ratio of the height of the piercing member 330 to the height of the second clamping head is in a range of 1.2 to 3. In some embodiments, the ratio of the height of the piercing member 330 to the height of the second clamping head is in a range of 1.5 to 2.5. In some embodiments, the ratio of the height of the piercing member 330 to the height of the second clamping head is in a range of 1.8 to 2. Arranging the piercing member 330 and the first clamping head 311-2 according to the ratio of the height of the piercing member 330 to the height of the first clamping head 311-2 can effectively reduce the risk of tissue slipping when the clamp device 300 is closed and clamped.

[0194] FIG. 23 is a schematic structural diagram of a puncture table 340 according to some embodiments of the present specification.

[0195] In some embodiments, as shown in FIG20 , at least one of the first clamping portion 310-1 and the second clamping portion 310-2 (e.g., the first clamping portion 310-1) includes a puncture platform 340. The puncture platform 340 is a structure that cooperates with the puncture member 330. The puncture platform 340 provides a support platform for the tissue before the puncture member 330 punctures, while also providing a fulcrum for the puncture member 330 and providing a certain positioning function to facilitate smooth penetration of the puncture member 330 into the tissue. In some embodiments, the surface of the puncture platform 340 can be flat or convex to provide support for the tissue.

[0196] In some embodiments, one of the first clamping portion 310-1 and the second clamping portion 310-2 may be provided with a puncture member 330, and the other may be provided with a puncture platform 340. In some embodiments, the first clamping portion 310-1 may be provided with a puncture member 330 and a puncture platform 340, while the second clamping portion 310-2 may also be provided with another puncture member 330 and another puncture platform 340.

[0197] For example, the first clamping portion 310-1 is provided with a first puncture member, and the first clamping portion 310-1 is provided with a first puncture platform, the second clamping portion 310-2 is provided with a second puncture platform, and the second clamping portion 310-2 is provided with a second puncture member. When the clamp device 300 is in a closed state, the position of the first puncture member on the first clamping portion 310-1 can overlap with the position of the second puncture platform on the second clamping portion 310-2, and the position of the first puncture platform on the first clamping portion 310-1 can overlap with the position of the second puncture member on the second clamping portion 310-2. That is, the first puncture member cooperates with the second puncture platform, thereby stably connecting the first clamping portion 310-1 and the second clamping portion 310-2 to the tissue at that position; similarly, the second puncture member cooperates with the first puncture platform, thereby stably connecting the first clamping portion 310-1 and the second clamping portion 310-2 to the tissue at that position.

[0198] In some embodiments, as shown in FIG23 , puncture platform 340 is provided with a puncture space 341. When first clamping portion 310-1 and second clamping portion 310-2 are closed, puncture member 330 can penetrate puncture space 341. When first clamping portion 310-1 and second clamping portion 310-2 are opened, puncture member 330 can exit puncture space 341. In some embodiments, puncture space 341 can be a through hole or a blind hole provided in puncture platform 340.

[0199] In some embodiments, the outer diameter of puncturing member 330 can be smaller than the entrance diameter of puncturing space 341, that is, the outer diameter of puncturing member 330 can be smaller than the inner diameter of the through hole or blind hole provided on puncturing platform 340, so that puncturing member 330 can smoothly puncture tissue. It should be noted that puncturing member 330 and puncturing space 341 are not interlocked; puncturing member 330 only needs to pass through puncturing space 341.

[0200] FIG. 24 is a schematic diagram illustrating the height relationship between the puncture member 330 and the first clamp 311 - 2 , and between the puncture platform 340 and the second clamp 311 - 4 , according to some embodiments of this specification.

[0201] In some embodiments, the first clamping portion 310-1 includes a first clamping arm 311-1 and a first clamping head 311-2 connected to each other, and the second clamping portion 310-2 includes a second clamping arm 311-3 and a second clamping head 311-4 connected to each other. The free ends of the first clamping head 311-2 and the second clamping head 311-4 extend radially inwardly of the clamp device 300. In some embodiments, as shown in FIG24 , the puncturing member 330 is disposed on the first clamping arm 311-1, and the puncturing platform 340 is disposed on the second clamping arm 311-3. The ratio of the height H1 of the puncturing member 330 to the height H of the first clamping head 311-1 is in the range of 0.8 to 1.2, and the ratio of the height L1 of the puncturing platform 340 to the height L of the second clamping head 311-4 is in the range of 0.8 to 1.2. Wherein, H1 is the distance from the end of the puncturing element 330 to the inner surface of the first clamping portion 310-1, H is the distance from the end of the first clamping head 311-2 to the inner surface of the first clamping portion 310-1, L1 is the distance from the surface of the puncturing platform 340 to the inner surface of the second clamping portion 310-2, and L is the distance from the second clamping head 311-4 to the inner surface of the second clamping portion 310-2. In some embodiments, the puncturing element 330 is disposed on the second clamping arm 311-3, and the puncturing platform 340 is disposed on the first clamping arm 311-1. The ratio of the height of the puncturing element 330 to the height of the second clamping head 311-4 ranges from 0.8 to 1.2, and the ratio of the height of the puncturing platform 340 to the height of the first clamping head 311-2 ranges from 0.8 to 1.2. By arranging the puncture member 330, the first clamp 311-2, the puncture platform 340 and the second clamp 311-4 according to the aforementioned height ratio relationship, the risk of tissue slipping when the clamp device 300 is closed and clamped can be effectively reduced.

[0202] FIG. 25 is a schematic diagram illustrating the length relationship between the piercing member 330 and the clamping portion 310 according to some embodiments of this specification.

[0203] In some embodiments, as shown in Figure 25 , the ratio of the distance M1 between the piercing member 330 and the proximal end of the clamping portion 310 to the length M of the clamping portion 310 is in the range of 0.6 to 0.9. M1 is the distance from the centerline of the piercing member 330 to the proximal end of the clamping portion 310, and M is the distance from the distal end of the clamping portion to its proximal end. Positioning the piercing member 330 relative to the clamping portion 310 within this distance range can better achieve the piercing effect of the piercing member 330 and enhance the clamping force.

[0204] Some embodiments of the present specification also provide a method for controlling a clamp instrument, which is applied to the clamp instrument 10 of any of the above embodiments. The clamp instrument includes a clamp device 300, a conveying device 200, and a control device 100. The clamp device 300 is releasably disposed at the distal end of the conveying device 200. The control device 100 includes a control line 110, which includes a first control line 110-1 and a second control line 110-2. The clamp device 300 includes a clamp seat 320 and two clamping portions 310, which include a first clamping portion 310-1 and a second clamping portion 310-2. The distal end of the first control line 110-1 is releasably connected to the first clamping portion 310-1, and the distal end of the second control line 110-2 is releasably connected to the second clamping portion 310-2. In some embodiments, the control method is performed by the control device 100. The operations of the process shown below are for illustrative purposes only. In some embodiments, a process may be accomplished with one or more additional operations not described above and / or without one or more of the operations discussed. Additionally, the order in which the operations of the processes described below are not intended to be limiting.

[0205] In some embodiments, the control method includes: the control device 100 controls the first control line 110 - 1 to move from the proximal end to the distal end, so that the first control line 110 - 1 drives the first clamping portion 310 - 1 to deflect around the axis.

[0206] In some embodiments, the control device 100 includes two control handles 120. The distal end of the first control wire 110-1 is connected to the proximal end of the first clamping portion 310-1. When the first control handle 120-1 controls the first control wire 110-1 to move from the proximal end to the distal end, the proximal end of the first clamping portion 310-1 is pushed, causing the first clamping portion 310-1 to deflect about the axis of the pin 321 in a direction D2 away from the central axis BB of the clamping base 320.

[0207] In some embodiments, the control method includes: the control device 100 controls the second control line 110-2 to move from the distal end to the proximal end, so that the second control line 110-2 drives the second clamping part 310-2 to deflect around the axis A; wherein the deflection directions of the first clamping part 310-1 and the second clamping part 310-2 are the same, and the clamp device 300 deflects as a whole.

[0208] In some embodiments, the distal end of the second control line 110-2 is connected to the proximal end of the second clamping portion 310-2. When the second control handle 120-2 controls the second control line 110-2 to move from the distal end to the proximal end, the proximal end of the second clamping portion 310-2 is subjected to tension, causing the second clamping portion 310-2 to deflect around the axis of the pin 321 in the direction D1 close to the center axis BB of the clamping base 320.

[0209] Among them, the first clamping part 310-1 deflects toward the direction D2 away from the central axis BB of the clamping base 320, and the second clamping part 310-2 deflects toward the direction D1 close to the central axis BB of the clamping base 320. The two deflection directions are the same, thereby achieving the overall deflection of the clamping part 310. After the overall deflection, the clamping direction of the clamping part 310 can face the wound 410 to achieve effective clamping.

[0210] Some embodiments of the present specification also provide a method for controlling a clamp instrument, which is applied to the clamp instrument 10 of any of the above embodiments. The clamp instrument includes a clamp device 300, a conveying device 200, and a control device 100. The clamp device 300 is releasably disposed at the distal end of the conveying device 200. The control device 100 includes a control line 110, which includes a first control line 110-1 and a second control line 110-2. The clamp device 300 includes a clamp seat 320 and two clamping portions 310, which include a first clamping portion 310-1 and a second clamping portion 310-2. The distal end of the first control line 110-1 is releasably connected to the first clamping portion 310-1, and the distal end of the second control line 110-2 is releasably connected to the second clamping portion 310-2. In some embodiments, the control method is performed by the control device 100. The operations of the process shown below are for illustrative purposes only. In some embodiments, a process may be accomplished with one or more additional operations not described above and / or without one or more of the operations discussed. Additionally, the order in which the operations of the processes described below are not intended to be limiting.

[0211] In some embodiments, a method for controlling a clip device includes: controlling the first control line 110-1 to move distally, thereby placing the clip device 10 in a side-opening state. For details on controlling the side-opening state of the clip device 10 by controlling the first control line 110-1 to move distally, see the description of Figures 13-15 above.

[0212] In some embodiments, the control method of the clamp instrument further includes: when the side opening angle of the clamp instrument 10 reaches a maximum value, continuing to control the first control line 110-1 to move distally, and the first clamping portion 310-1 and the second clamping portion 310-2 deflect in the same direction.

[0213] In some embodiments, when the side opening angle of the clamp device 10 reaches its maximum value, the first control line 110-1 is continuously controlled to move distally, driving the first clamping portion 310-1 to deflect in a direction D2 away from the central axis BB of the clamp base 320. This can cause the second control line 110-2 to deform, driving the second clamping portion 310-2 to deflect in a direction D1 toward the central axis BB of the clamp base 320, thereby achieving the same-direction deflection of the first clamping portion 310-1 and the second clamping portion 310-2. The second control line 110-2 is deformed by contact with the first clamping portion 310-1. For more information, please refer to the relevant descriptions of Figures 7-8C.

[0214] In some embodiments, the control method further includes: controlling the first clamping portion 310-1 to deflect around the axis A in a direction D2 away from the central axis BB of the clamping base 320 to a position where the first clamping portion 310-1 abuts against the second control line 110-2 or the second clamping portion 310-2.

[0215] In some embodiments, the control device 100 includes one or two control handles 120. The control device 100 adjusts the position of the clamp device 300 by adjusting the position of the delivery device or the sheath, so that one of the clamping portions 310 of the clamp device 300 abuts against the edge of the wound 410 in the tissue 400. When the distal end of the first clamping portion 310-1 abuts against the tissue 400, the sheath 210 or the clamping portion 310 is controlled to move distally, causing the distal end of the first clamping portion 310-1 to be deflected in a direction D2 away from the central axis BB of the clamp base 320 under pressure. The control device 100 continuously controls the deflection of the first clamping part 310-1 until it deflects to a position where the first clamping part 310-1 abuts against the second control line 110-2 or the second clamping part 310-2. At this time, the contact part 314 of the first clamping part 310-1 abuts against the matching part 112 of the second control line 110-2, or the contact part 314 of the first clamping part 310-1 abuts against the matching part 112 of the second clamping part 310-2.

[0216] In some embodiments, the control method of the clamp instrument also includes: controlling the first clamping part 310-1 to continue deflecting around the axis A in the direction D2 away from the central axis BB of the clamp seat 320, and driving the second clamping part 310-2 to deflect around the axis A while causing the second control line 110-2 to deform.

[0217] In some embodiments, when the first clamping portion 310-1 deflects in a direction D2 away from the central axis BB of the clamping base 320, the contact portion 314 of the first clamping portion 310-1 abuts the mating portion 112 of the second control wire 110-2. The first clamping portion 310-1 continues to deflect in the direction D2 away from the central axis BB of the clamping base 320, squeezing and deforming at least a portion of the distal end of the second control wire 110-2. The deformation of the second control wire 110-2 drives the second clamping portion 310-2 to deflect in the direction D1 toward the central axis BB of the clamping base 320.

[0218] In some embodiments, when the first clamping portion 310-1 deflects in the direction D2 away from the central axis BB of the clamping seat 320, the contact portion 314 of the first clamping portion 310-1 abuts against the mating portion 112 of the second clamping portion 310-2, and the first clamping portion 310-1 continues to deflect in the direction D2 away from the central axis BB of the clamping seat 320, driving the second clamping portion 310-2 to deflect in the direction D1 close to the central axis BB of the clamping seat 320. When the second clamping portion 310-2 deflects, at least a portion of the distal end of the second control line 110-2 is squeezed and deformed.

[0219] Among them, the first clamping part 310-1 deflects toward the direction D2 away from the central axis BB of the clamping base 320, and the second clamping part 310-2 deflects toward the direction D1 close to the central axis BB of the clamping base 320. The two deflection directions are the same, thereby achieving the overall deflection of the clamping part 310. After the overall deflection, the clamping direction of the clamping part 310 can face the wound 410 to achieve effective clamping.

[0220] In some embodiments, the control method further includes: the control device 100 controls the first control line 110 - 1 to move from the proximal end to the distal end, so that the first control line 110 - 1 drives the first clamping portion 310 - 1 to deflect around the axis.

[0221] In some embodiments, the first control handle 120-1 is connected to the proximal end of the first control wire 110-1, which is in turn connected to the first hook 313 of the first clamping portion 310-1. In some embodiments, after the clamping portion 310 is delivered to a target location (e.g., near the wound 410 in the tissue 400) via the delivery device 200, the first control handle 120-1 controls the first control wire 110-1 to move from the proximal end to the distal end, thereby causing the first clamping portion 310-1 to deflect about the axis A in a direction away from the central axis BB of the clamping base 320.

[0222] In some embodiments, the control method also includes: the control device 100 controls the second control line 110-2 to move from the proximal end to the distal end, so that the second control line 110-2 drives the second clamping part 310-2 to deflect around the axis; wherein, the first clamping part 310-1 and the second clamping part 310-2 deflect in a direction away from each other, and the clamp device 300 opens.

[0223] In some embodiments, the second control handle 120-2 is connected to the proximal end of the second control line 110-2, which is in turn connected to the second hook 313 of the second clamping portion 310-2. The second control line 110-2 moves from the proximal end to the distal end, causing the second clamping portion 310-2 to deflect about axis A away from the central axis BB of the clamping base 320. At this point, the first clamping portion 310-1 and the second clamping portion 310-2 move away from each other, assuming an open state. A clamping space is formed between the first clamping portion 310-1 and the second clamping portion 310-2, capable of clamping the wound 410 of the tissue 400.

[0224] In some embodiments, the control device 100 is further used to control the clamp device to perform closing, locking, releasing, etc. The following embodiments will describe the closing, locking, and releasing control methods involved in the clamp device.

[0225] In some embodiments, when the clamping portion 310 is opened or deflected as a whole, the control handle 120 controls the first control line 110-1 to move from the distal end to the proximal end, so that the first control line 110-1 drives the first clamping portion 310-1 to deflect around the axis; controls the second control line 110-2 to move from the distal end to the proximal end, so that the second control line 110-2 drives the second clamping portion 310-2 to deflect around the axis; wherein the first clamping portion 310-1 and the second clamping portion 310-2 deflect toward each other, and the clamp device 300 is closed.

[0226] In some embodiments, when the second clamping portion 310-2 abuts against the limiting portion 323, the first control line 110-1 is controlled by the control handle 120 to move from the distal end to the proximal end, so that the first clamping portion 310-1 deflects around the axis A toward the direction close to the central axis BB of the clamp seat 320 until the first clamping portion 310-1 and the second clamping portion 310-2 form a closed state.

[0227] If the second clamping portion 310-2 is not in contact with the limiting portion 323, the control handle 120 is used to control the first control line 110-1 and the second control line 110-2 to move from the distal end to the proximal end, so that the first clamping portion 310-1 and the second clamping portion 310-2 are both deflected around the axis A toward the direction close to the central axis BB of the clamping seat 320 until the first clamping portion 310-1 and the second clamping portion 310-2 are closed.

[0228] When the first clamping portion 310 - 1 and the second clamping portion 310 - 2 are closed, the distal ends of the first clamping portion 310 - 1 and the second clamping portion 310 - 2 can receive a portion of the tissue 400 into the clamping space, thereby closing the wound 410 .

[0229] In some embodiments, when the clamping portion 310 is closed, the first control handle 120 controls the first control line 110-1 to move from the distal end to the proximal end, so that the first control line 110-1 drives the first clamping portion 310-1 to form a limited fit with the clamping seat 320, and the first control line 110-1 and the first clamping portion 310-1 are released; the second control handle 120-2 controls the second control line 110-2 to move from the distal end to the proximal end, so that the second control line 110-2 drives the second clamping portion 310-2 to form a limited fit with the clamping seat 320, and the second control line 110-2 and the second clamping portion 310-2 are released; wherein, the first clamping portion 310-1 and the second clamping portion 310-2 are both locked with the clamping seat 320, the clamp device 300 is locked, and the control line 110 and the clamping portion 310 are released.

[0230] In some embodiments, after the clamping portion 310 is closed, the control wire 110 continues to move from the distal end to the proximal end, causing the locked portion 315 of the clamping portion 310 to extend axially until it mates with the locking portion 326 of the clamping seat 320, thereby locking the clamping portion 310 within the clamping seat 320. In some embodiments, the movement of the control wire 110 from the distal end to the proximal end causes the hooks 313 of the two clamping portions 310 to deform, thereby increasing their axial length to the interior of the clamping seat 320 and mating with the locking portion 326 of the clamping seat 320, thereby locking the clamping portion 310 within the clamping seat 320.

[0231] After the clamping portion 310 is locked, the control line 110 continues to move from the distal end to the proximal end, thereby releasing the connection between the control line 110 and the clamping portion 310. In some embodiments, the movement of the control line 110 from the distal end to the proximal end causes the hook 313 to deform, displace, or break, thereby releasing the connection between the hook 111 and the hook 313, and releasing the connection between the control line 110 and the clamping portion 310.

[0232] In some embodiments, the clamp seat 320 and the sheath 210 can be releasably connected through the connecting pin 230; the control line 110 continues to move from the distal end to the proximal end, so that the control line 110 drives the connecting pin 230 to release the clamp seat 320 and the sheath 210, and the clamp device 300 and the conveying device 200 are released.

[0233] In some embodiments, after the control line 110 is connected and released from the clamping portion 310, the control line 110 continues to move from the distal end to the proximal end. After the hook 111 at the distal end of the control line 110 cooperates with the connecting pin 230, it drives the bent portion 232 at the distal end of the connecting pin 230 to disengage from the connecting hole 325 of the clamp seat 320 and the connecting recess of the sheath tube 210. The connection between the clamp seat 320 and the sheath tube 210 is released. At this time, the connection between the clamp device 300 and the conveying device 200 is released.

[0234] Some embodiments of the present specification also provide a control method for a clip instrument, which is applied to the clip instrument 10 of any of the above embodiments. The clip instrument includes a clip device 300, a conveying device 200, and a control device 100. The clip device 300 is releasably disposed at the distal end of the conveying device 200. The control device 100 includes a control line 110, which includes a first control line 110-1 and a second control line 110-2. The clip device 300 includes a clamping seat 320 and two clamping portions 310. The two clamping portions 310 include a first clamping portion 310-1 and a second clamping portion 310-2. The distal end of the first control line 110-1 is releasably connected to the first clamping portion 310-1, and the distal end of the second control line 110-2 is releasably connected to the second clamping portion 310-2. At least one of the first clamping portion 310-1 and the second clamping portion 310-2 includes a puncture member 330. In some embodiments, the control method is executed by the control device 100 .

[0235] In some embodiments, the control method of the clamp device 10 includes: controlling the clamp device 10 to clamp the first target at a first target position and causing the piercing member 330 to penetrate the first target; controlling at least a portion of the clamp device 300 to move to a second target position, causing the piercing member 330 to move synchronously with the first target; and controlling the clamp device 10 to simultaneously clamp the first target and the second target. The first target and the second target are both tissues, but because tissues may have a large span, different positions of the tissue are considered to be the first target and the second target, respectively. That is, the tissue at the first target position can be considered the first target, and the tissue at the second target position can be considered the second target.

[0236] In some embodiments, controlling at least a portion of the clamp device 300 to move to the second target position may refer to moving the two clamping portions 310 of the clamp device 300 to the second target position, or to moving one of the two clamping portions 310 to the second target position, so that the clamp device 10 can clamp the second target object when closed at the second target position. In some embodiments, controlling at least a portion of the clamp device 300 to move to the second target position may refer to moving the entire clamp device 300 to the second target position. This can correspond to a situation where the tissue span is extremely large, and the second target position cannot be reached by the movement of the clamping portion 310 alone, and the entire clamp device 300 needs to be moved. In some embodiments, in the process of controlling at least a portion of the clamp device 300 to move to the second target position, the puncture member 330 drives the first target object to move synchronously.

[0237] In some embodiments, controlling the clamp instrument 10 to clamp the first target object at the first target position and causing the puncture member 330 to penetrate the first target object includes: controlling the first control line 110-1 and the second control line 110-2 to move from the proximal end to the distal end, so that the clamp instrument 10 is in an open state; controlling the clamp instrument 10 to move to the first target position; controlling the first control line 110-1 and the second control line 110-2 to move toward the proximal end, so that the clamp instrument 10 clamps the first target object.

[0238] In some embodiments, the initial state of the clamp instrument 10 can be a closed state, and then the first control line 110-1 and the second control line 110-2 are controlled to move from the proximal end to the distal end, driving the first clamping part 310-1 to deflect in the direction D2 away from the central axis BB of the clamp seat 320, and the second control line 110-2 moves from the proximal end to the distal end, driving the second clamping part 310-2 to deflect in the opposite direction of the direction D1 away from the central axis BB of the clamp seat 320, and the clamp instrument 10 opens; after controlling the clamp instrument 10 to move to the first target position, the first control line 110-1 is controlled to move proximally, driving the first clamping part 310-1 to deflect in the direction D2 close to the central axis BB of the clamp seat 320, and the second control line 110-2 moves proximally, driving the second clamping part 310-2 to deflect in the direction D1 close to the central axis BB of the clamp seat 320, and the clamp instrument 10 is closed, and the clamp instrument 10 clamps the first target object.

[0239] In some embodiments, before the clamp device 10 is controlled to clamp the first object at the first target position, the clamp device 10 is controlled to switch to the side-open state. In some embodiments, after the piercing member 330 penetrates the first object, the clamp device 10 is controlled to switch to the side-open state.

[0240] In some embodiments, controlling the clamp device 10 to switch to the side-opening state includes controlling one of the first control line 110-1 and the second control line 110-2 to move distally. In some embodiments, controlling the clamp device 10 to switch to the side-opening state also includes controlling the other of the first control line 110-1 and the second control line 110-2 to also move distally, with the movement of the other less than the movement of one of the first control line and the second control line. For more information on switching the clamp device 10 to the side-opening state, please refer to the relevant description of Figures 13-15 above.

[0241] In some embodiments, controlling the clamp device 10 to simultaneously clamp the first and second objects includes controlling the distal ends of the first control wire 110-1 and the second control wire 110-2, whichever is more distal, to move proximally, thereby closing the clamp device 10 and achieving clamping. In some embodiments, controlling the clamp device 10 to simultaneously clamp the first and second objects also includes controlling the distal ends of the first control wire 110-1 and the second control wire 110-2, whichever is more proximal, to move proximally, thereby closing the clamp device 10 and achieving clamping. For more information, please refer to the descriptions of Figures 13-15 above.

[0242] In some embodiments, the clamping base 320 includes a limit portion 323 located between the first clamping portion 310-1 and the second clamping portion 310-2. The first clamping portion 310-1 and the second clamping portion 310-2 each include a stop portion 312. For an explanation of the stop portion 312, please refer to the relevant descriptions of Figures 2-4. In some embodiments, controlling the clamping device 10 to switch to the side-open state further includes: controlling the first clamping portion 310-1 or the second clamping portion 310-2 to deflect toward the limit portion 323 to a preset position, whereby the stop portion 312 contacts the limit portion 232 to stop. In some embodiments, the preset position includes the position of the central axis BB of the clamping base 320. When the clamping portion 310 deflects in a direction D1 approaching the central axis BB of the clamping base 320 to a position collinear with the central axis BB of the clamping base 320, the stop portion 312 contacts the limit portion 323 to stop. In some embodiments, the preset position includes a position at a preset angle relative to the central axis BB of the clamping base 320, wherein the preset angle is in the range of 0 to 30 degrees. For example, when the preset angle is 10 degrees, when the clamping portion 310 deflects in the direction D1 approaching the central axis BB of the clamping base 320 to a position at a 10-degree angle relative to the central axis BB of the clamping base 320, the stop portion 312 contacts the limiting portion 323 to stop the position.

[0243] In some embodiments, at least one of the first clamping portion 310-1 and the second clamping portion 310-2 includes a puncture platform 340, which includes a puncture space 341. For an explanation of the puncture platform 340, see the relevant descriptions of Figures 23 and 24. In some embodiments, controlling the clamp device 10 to clamp the first target object at the first target position and causing the puncture member 330 to penetrate the first target object includes: controlling the puncture platform 340 or the puncture member 330 to abut the first target object; controlling the puncture platform 340 and the puncture member 330 to approach each other until the puncture platform 340 and the puncture member 330 simultaneously abut the first target object; and controlling the clamp device 10 to close, causing the puncture member 330 to penetrate the first target object and penetrate the puncture space 341.

[0244] The operational flow of the control method is described below with reference to Figures 26-31B . For details regarding controlling deflection, refer to the aforementioned control method. The operations of the process shown below are for illustrative purposes only. In some embodiments, the process may utilize one or more additional operations not described and / or may be performed without one or more of the operations discussed. Furthermore, the order of the operations in the process described below is not intended to be limiting.

[0245] Figure 26 is a schematic diagram of the open state of the clamp instrument 10 shown in other embodiments of this specification. At this time, the clamp instrument 10 does not clamp the tissue and is in the open state. In some embodiments, the span of the clamp instrument 10 can be 10-24 mm. In some embodiments, the span of the clamp instrument 10 can be 12-24 mm. In some embodiments, the span of the clamp instrument 10 can be 12-22 mm. In some embodiments, the span of the clamp instrument 10 can be 15-20 mm. In some embodiments, the span of the clamp instrument 10 can be 17-20 mm. In some embodiments, the span of the clamp instrument 10 can be 17.5-18.5 mm. In some embodiments, the span of the clamp instrument 10 can be 18 mm. The span is the distance between the distal ends of the two clamping portions 310.

[0246] Figure 27A is a schematic diagram of a clip device 10 in a deflected state according to other embodiments of the present disclosure. Figure 27B is a schematic diagram of the control handle in the deflected state according to some embodiments of Figure 27A. As shown in Figure 27B, when the first control handle 120-1 is moved distally, the first control wire 110-1 moves distally. Simultaneously, when the second control handle 120-2 is moved proximally, the first control wire 110-2 moves proximally. The first clamping portion 310-1 opens, achieving deflection (see Figure 27A). Figure 27C is a schematic diagram of the control handle in the deflected state according to other embodiments of Figure 27A. As shown in Figure 27C, when the control handle 120 is moved distally, the clip device 10 opens (see Figure 26), abutting the first clamping portion 310 against tissue, clamping the tissue, and allowing the piercing member 330 to penetrate the tissue. The clip device 10 is then opened again, pushing the control mechanism 100 distally, achieving deflection (see Figure 27A).

[0247] FIG28A is a schematic diagram of a clip instrument 10 shown in some embodiments of this specification, shown with the clip instrument 10 laterally opened and clamping tissue. FIG28B is a schematic diagram of the control handles in some embodiments of FIG28A . As shown in FIG28B , by moving the first control handle 120-1 proximally, the clip instrument 10 is closed (see FIG28A ).

[0248] FIG29A is a schematic diagram of a clip device 10 in a second open position according to other embodiments of the present disclosure. FIG29B is a schematic diagram of control handles in the position shown in FIG29A according to some embodiments. As shown in FIG29B , by distally moving at least one control handle 120 (e.g., first control handle 120-1), the clip device 10 reopens, with the tissue now hooked onto the piercing member 330 (see FIG28A ).

[0249] Figure 29C is a schematic diagram of the clamp device 10 in a second open position according to yet another embodiment of the present disclosure. As shown in Figure 29C , when a large span of tissue (e.g., tissue greater than 18 mm) needs to be clamped, the piercing member 330 pierces the tissue and pushes the sheath 210, causing the second clamping portion 310-2 to move the tissue toward the other side of the wound until both sides of the wound are within the space between the two clamping portions 310.

[0250] Figure 30A is a schematic diagram of a clip device 10 in a secondary clamping state according to other embodiments of this specification. Figure 30B is a schematic diagram of the control handles in the state shown in Figure 30A according to some embodiments. As shown in Figure 30B, by moving the first control handle 120-1 proximally, the clip device 10 is closed, and both sides of the wound tissue are clamped by the clamping portion 310 (see Figure 30A).

[0251] Figure 31A is a schematic diagram of a clamp device 300 and a delivery device 200 in a released state, according to other embodiments of the present disclosure. Figure 31B is a schematic diagram of the control handles in the state shown in Figure 31A , according to some embodiments. As shown in Figure 31B , both the first control handle 120-1 and the second control handle 120-2 are moved proximally, and the clamp device 300 is released and separated from the delivery device 200 (see Figure 31A ).

[0252] The beneficial effects that may be brought about by the embodiments of the present application include but are not limited to:

[0253] (1) During clinical operation, after the two clamping parts are opened, the clamping parts are deflected in the same direction to the direction facing the wound of the tissue, which is conducive to achieving effective clamping of the wound of the tissue and ensuring the clamping effect; and the operator does not need to replace the control handle after the clamping parts are opened, and then operate the clamping parts to rotate through the control device. Compared with replacing the endoscope handle, it is more convenient and simpler to operate the distal end of the endoscope, thereby saving operation time and reducing operation risks.

[0254] (2) The limiter of the clamping seat limits the deflection angle of the clamping portion. When the two clamping portions deflect in the same direction, the limiter can prevent the clamping portion from deflecting too much and exceeding the target deflection angle range, thereby avoiding the situation where the wound cannot be accurately aligned with the tissue. In addition, the limiter limits the deflection of the clamping portion within a specific angle range to avoid accidents such as scratching the endoscope channel or other accidents.

[0255] (3) The first control line controls the deflection of the first clamping part, and the second control line controls the deflection of the second clamping part, making operation simple and quick. In addition, the movements of the first clamping part and the second clamping part do not interfere with each other, so the operator can adjust the deflection of the first clamping part and the second clamping part in sequence or synchronously according to actual conditions, making the operation more flexible.

[0256] (4) By applying force to the first clamping part with the aid of an external object, the first clamping part is deflected, and the deflection of the first clamping part drives the deflection of the second clamping part. The operator does not need to operate the first clamping part and the second clamping part, but only needs to adjust the endoscope to achieve the deflection of the two clamping parts, which simplifies the operation. In addition, the first clamping part can be deflected after contacting the edge of the wound, which can more accurately direct the clamping space of the clamping part toward the wound, thereby achieving precise positioning.

[0257] (5) The operator controls the two control lines separately through the first control handle and the second control handle, so that the movements of the two control lines are independent of each other, and further controls the two clamping parts separately through the two control lines, so that the deflections of the two clamping parts do not interfere with each other, thereby performing operations such as opening, overall deflection, locking, closing and releasing, and the operation method is more flexible.

[0258] (6) The clamp seat is rotatably connected to the sheath tube, and the closing direction of the two clamping parts can be made consistent with the closing direction of the tissue wound by adjusting the rotation angle of the clamp seat, thereby effectively clamping the tissue wound;

[0259] (7) By providing a puncture member with a hook portion, the tissue can be stably clamped between the clamping parts, thereby improving the clamping stability of the clamp instrument and preventing tissue slippage;

[0260] (8) By combining the puncture member with the deflectable clamp portion, the clamping device is made more flexible and can achieve clamping over a large span.

[0261] It should be noted that different embodiments may produce different beneficial effects. In different embodiments, the beneficial effects that may be produced may be any one or a combination of the above, or any other possible beneficial effects.

[0262] While the basic concepts have been described above, it will be apparent to those skilled in the art that the detailed disclosure is merely illustrative and does not limit this specification. Although not explicitly stated herein, various modifications, improvements, and revisions to this specification may be made by those skilled in the art. Such modifications, improvements, and revisions are suggested in this specification and remain within the spirit and scope of the exemplary embodiments of this specification.

[0263] This specification also uses specific terms to describe the embodiments of this specification. For example, "one embodiment," "an embodiment," and / or "some embodiments" refer to a feature, structure, or characteristic associated with at least one embodiment of this specification. Therefore, it should be emphasized and noted that references to "one embodiment," "an embodiment," or "an alternative embodiment" two or more times in different locations in this specification do not necessarily refer to the same embodiment. Furthermore, certain features, structures, or characteristics of one or more embodiments of this specification may be appropriately combined.

[0264] Similarly, it should be noted that, in order to simplify the presentation of this specification and thus facilitate understanding of one or more embodiments of the invention, the foregoing descriptions of the embodiments of this specification sometimes combine multiple features into a single embodiment, figure, or description thereof. However, this disclosure method does not imply that the subject matter of this specification requires more features than those recited in the claims. In fact, an embodiment may have fewer features than all of the features of a single disclosed embodiment.

[0265] In some embodiments, numbers are used to describe the quantity of components and attributes. It should be understood that such numbers used in the description of the embodiments are modified by the modifiers "about", "approximately" or "substantially" in some examples. Unless otherwise stated, "about", "approximately" or "substantially" indicate that the numbers are allowed to vary by ±20%. Accordingly, in some embodiments, the numerical parameters used in the description and claims are approximate values, which may change according to the required characteristics of individual embodiments. In some embodiments, the numerical parameters should take into account the specified significant digits and adopt the general method of retaining digits. Although the numerical domains and parameters used to confirm the breadth of their range in some embodiments of this specification are approximate values, in specific embodiments, the settings of such numerical values ​​are as accurate as possible within the feasible range.

[0266] Finally, it should be understood that the embodiments described in this specification are intended only to illustrate the principles of the embodiments of this specification. Other variations may also fall within the scope of this specification. Therefore, by way of example and not limitation, alternative configurations of the embodiments of this specification may be considered consistent with the teachings of this specification. Accordingly, the embodiments of this specification are not limited to the embodiments explicitly described and illustrated in this specification.

Claims

1. A clamp device, characterized in that: It comprises a clamp device, a conveying device and a control device, wherein the clamp device is releasably arranged at the distal end of the conveying device, and the control device comprises a control line, wherein the control line comprises a first control line and a second control line; The clamp device comprises a clamp seat and two clamping parts, wherein the two clamping parts comprise a first clamping part and a second clamping part, the distal end of the first control line is releasably connected to the first clamping part, and the distal end of the second control line is releasably connected to the second clamping part; The two clamping parts are configured to be able to deflect in the same direction around an axis under the action of the first control line and / or the second control line, and the axis is perpendicular to the plane where the two clamping parts are located.

2. The clamp device according to claim 1, characterized in that: The clamp seat includes a limiting portion, and the limiting portion is configured to limit a deflection angle of the first clamping portion and / or the second clamping portion.

3. The clip device according to claim 2, characterized in that: The limiting portion is located between the first clamping portion and the second clamping portion, and the first clamping portion and the second clamping portion respectively include a stop portion. When the clamping portion deflected toward the limiting portion deflects to a preset position, the stop portion contacts the limiting portion and stops.

4. The clip device according to claim 1, characterized in that: When the first control line pushes the first clamping part to deflect in a direction away from the central axis of the clamp seat, and the second control line pulls the second clamping part to deflect in a direction close to the central axis of the clamp seat, the two clamping parts deflect in the same direction around the axis.

5. The clip device according to claim 1, characterized in that: When the distal end of the first clamping part is subjected to external force, it deflects in a direction away from the central axis of the clamping seat, driving the second clamping part to deflect in a direction close to the central axis of the clamping seat, and at the same time causing the second control line to deform, and the two clamping parts deflect in the same direction around the axis.

6. The clip device according to claim 5, characterized in that After the first clamping portion deflects in a direction away from the central axis of the clamping seat until the first clamping portion abuts against the second control line or the second clamping portion, the first clamping portion drives the second clamping portion to deflect in a direction close to the central axis of the clamping seat, and at the same time causes the second control line to deform.

7. The clip device according to claim 6, characterized in that After the first clamping portion abuts against the second control line or the second clamping portion, the angle between the first clamping portion and the second clamping portion remains unchanged.

8. The clip device according to claim 5, characterized in that: The sheath tube includes an accommodating space for accommodating the deformed second control wire; a ratio of a sum of radial dimensions of the first control wire and the second control wire to a radial dimension of the accommodating space is 0.

5.

9. The clip device according to claim 1, characterized in that: The conveying device includes a first control handle and a second control handle, the first control handle is connected to the first control line, the second control handle is connected to the second control line, the first control handle controls the first clamping part to deflect around the axis through the first control line, and the second control handle controls the second clamping part to deflect around the axis through the second control line.

10. The clip device according to claim 1, characterized in that: The conveying device includes a control handle, which is connected to the first control line and the second control line. The control handle controls the first clamping part and the second clamping part to deflect around the axis simultaneously through the first control line and the second control line.

11. The clip device according to claim 3, characterized in that: The clamp seat is rotatable around the axis of the sheath tube.

12. The clip device according to claim 1, characterized in that The clip apparatus includes an open state, and the open state includes a straight open state and a side open state; When the first control line and / or the second control line acts on the two clamping parts in a first preset manner, the clamp device switches from the straight-open state to the side-open state; The first preset manner at least includes: one of the first control line and the second control line moves toward the distal end.

13. The clip device according to claim 12, characterized in that The first preset manner includes: one of the first control line and the second control line moves toward the distal end, and the other of the first control line and the second control line moves toward the proximal end.

14. The clip device according to claim 12, characterized in that When the first control line and / or the second control line acts on the two clamping parts in a second preset manner, the clamp device switches from the side-opening state to the straight-opening state; The second preset manner includes: the other of the first control line and the second control line moves toward the distal end.

15. The clip device according to claim 12, characterized in that The clip apparatus also includes a closed state; When the first control line and / or the second control line acts on the two clamping parts in a third preset manner, the clamp device switches from the side-open state to the closed state; The third preset manner includes: the distal ends of the first control line and the second control line move toward the proximal end when the distal ends are at the more distal ends.

16. The clip device according to claim 15, characterized in that The third preset manner also includes: the distal ends of the first control line and the second control line that are located closer to the proximal end also move toward the proximal end.

17. The clip device of claim 12, wherein: The clip apparatus also includes a closed state; When the first control line and the second control line act on the two clamping parts in a fourth preset manner, the clamp device switches from the open state to the closed state; The fourth preset mode includes: the first control line and the second control line move toward the proximal end.

18. The clip device of claim 12, wherein: The clip apparatus also includes a closed state; When the first control line and / or the second control line acts on the two clamping parts in a fifth preset manner, the clamp device switches from the closed state to the side-open state; The fifth preset manner includes: one of the first control line and the second control line moves toward the distal end.

19. The clip device according to claim 18, characterized in that The fifth preset method also includes: one of the first control line and the second control line moves distally by a first movement amount, the other of the first control line and the second control line moves distally by a second movement amount, and the first movement amount is greater than the second movement amount.

20. The clip device of claim 1, wherein: One of the first clamping part and the second clamping part includes a locking part, and the other includes a locked part, and the locking part includes a locked state and a released state; when the clamp device is connected to the control line, the locking part and the locked part can move relative to each other, and the locking part is in a released state; when the connection between the clamp device and the control line is released, the locking part and the locked part are engaged and connected, and the locking part is in a locked state.

21. The clip device of claim 20, wherein: The locking portion includes a locking space for accommodating the locked portion; when the clip device is connected to the control line, the opening size of the locking space is larger than the size of the locked portion; When the connection between the clip device and the control line is released, the opening size of the locking space is smaller than the size of the locked portion, and the locked portion is clamped in the locking space.

22. The clip device of claim 1, wherein: At least one of the first clamping part and the second clamping part includes a puncture member, the puncture member includes a puncture rod and a puncture head connected to each other, and the puncture head includes a hanging part arranged toward the puncture rod.

23. The clip device of claim 22, wherein: The first clamping portion includes a first clamping arm and a first clamping head connected to each other, the free end of the first clamping head extends radially inwardly along the clamp device, the piercing member is arranged on the first clamping arm, and the ratio of the height of the piercing member to the height of the first clamping head is in the range of 1.2 to 3.

24. The clip device of claim 22, wherein: At least one of the first clamping part and the second clamping part includes a puncture platform, and the puncture platform is provided with a puncture space; when the first clamping part and the second clamping part are closed, the puncture member penetrates into the puncture space; when the first clamping part and the second clamping part are opened, the puncture member withdraws from the puncture space.

25. The clip device of claim 24, wherein: The outer diameter of the puncture member is smaller than the entrance diameter of the puncture space.

26. The clip device of claim 24, wherein: The first clamping part includes a first clamping arm and a first clamping head connected to each other, the second clamping part includes a second clamping arm and a second clamping head connected to each other, the free ends of the first clamping head and the second clamping head extend radially inwardly along the clamp device, the puncture member is arranged on the first clamping arm, and the puncture platform is arranged on the second clamping arm, the ratio of the height of the puncture member to the height of the first clamping head is in the range of 0.8 to 1.2, and the ratio of the height of the puncture platform to the height of the second clamping head is in the range of 0.8 to 1.

2.

27. The clip device of claim 22, wherein: The ratio of the distance between the puncture member and the proximal end of the clamping portion to the length of the clamping portion is in the range of 0.6 to 0.

9.

28. The clip device of claim 22, wherein: For any of the puncture members, one end of the puncture rod away from the puncture head is connected to one of the two clamping parts, and the puncture head further includes a puncture portion, which faces the other of the two clamping parts.

29. The clip device of claim 22, wherein: The piercing member is arranged close to the axis of the clamping portion, or the piercing member is arranged at the side edge of the clamping portion.

30. The clip device of claim 28, wherein: The piercing portion includes a tip and a curved surface and / or a plurality of inclined surfaces extending from the tip to the hanging portion.

31. A clamp device, characterized in that: The invention comprises a clamp device, wherein the clamp device comprises a clamp seat and two clamping parts, wherein the two clamping parts comprise a first clamping part and a second clamping part, wherein at least one of the first clamping part and the second clamping part comprises a piercing member, wherein the piercing member comprises a piercing rod and a piercing head connected to each other, and wherein the piercing head comprises a hanging part arranged toward the piercing rod.

32. The clip device of claim 31, wherein: It also includes a conveying device and a control device, wherein the clamp device is releasably arranged at the distal end of the conveying device, and the control device includes a control line, and the control line includes a first control line and a second control line. The distal end of the first control line is releasably connected to the first clamping part, and the distal end of the second control line is releasably connected to the second clamping part.

33. The clip device of claim 31, wherein: The first clamping portion includes a first clamping arm and a first clamping head which are connected to each other, the free end of the first clamping head extends radially inwardly along the clamp device, the puncture member is arranged on the first clamping arm, and the ratio of the height of the puncture member to the height of the first clamping head is in the range of 1.2 to 3; and / or, the second clamping portion includes a second clamping arm and a second clamping head which are connected to each other, the free end of the second clamping head extends radially inwardly along the clamp device, the puncture member is arranged on the second clamping arm, and the ratio of the height of the puncture member to the height of the second clamping head is in the range of 1.2 to 3.

34. The clip device of claim 31, wherein: For any of the puncture members, one end of the puncture rod away from the puncture head is connected to one of the two clamping parts, and the puncture head further includes a puncture portion, which faces the other of the two clamping parts.

35. The clip apparatus of claim 31, wherein: The piercing member is arranged close to the axis of the clamping portion, or the piercing member is arranged at the side edge of the clamping portion.

36. The clip device of claim 34, wherein: The piercing portion includes a tip and a curved surface and / or a plurality of inclined surfaces extending from the tip to the hanging portion.

37. The clip device of claim 31, wherein: At least one of the first clamping part and the second clamping part includes a puncture platform, and the puncture platform is provided with a puncture space; when the first clamping part and the second clamping part are closed, the puncture member penetrates into the puncture space; when the first clamping part and the second clamping part are opened, the puncture member withdraws from the puncture space.

38. The clip device of claim 37, wherein: The outer diameter of the puncture member is smaller than the entrance diameter of the puncture space.

39. The clip device of claim 37, wherein: The first clamping part includes a first clamping arm and a first clamping head connected to each other, and the second clamping part includes a second clamping arm and a second clamping head connected to each other, and the free ends of the first clamping head and the second clamping head extend radially inwardly along the clamp device; wherein the puncture member is arranged on the first clamping arm, and the puncture platform is arranged on the second clamping arm, and the ratio of the height of the puncture member to the height of the first clamping head is in the range of 0.8 to 1.2, and the ratio of the height of the puncture platform to the height of the second clamping head is in the range of 0.8 to 1.2, and / or, the puncture member is arranged on the second clamping arm, and the puncture platform is arranged on the first clamping arm, and the ratio of the height of the puncture member to the height of the second clamping head is in the range of 0.8 to 1.2, and the ratio of the height of the puncture platform to the height of the first clamping head is in the range of 0.8 to 1.

2.

40. The clip instrument of claim 31, wherein: The ratio of the distance between the puncture member and the proximal end of the clamping portion to the length of the clamping portion is in the range of 0.6 to 0.

9.

41. The clip device of claim 31, wherein: The clamp seat includes a limiting portion, and the limiting portion is configured to limit a deflection angle of the first clamping portion and / or the second clamping portion.

42. The clip device of claim 41, wherein: The limiting portion is located between the first clamping portion and the second clamping portion, and the first clamping portion and the second clamping portion respectively include a stop portion. When the clamping portion deflected toward the limiting portion deflects to a preset position, the stop portion contacts the limiting portion and stops.

43. The clip device of claim 32, wherein: When the first control line pushes the first clamping part to deflect in a direction away from the central axis of the clamp seat, and the second control line pulls the second clamping part to deflect in a direction close to the central axis of the clamp seat, the two clamping parts deflect in the same direction around the axis.

44. The clip instrument of claim 32, wherein: When the proximal end of the first clamping part is subjected to external force, it deflects in the direction away from the central axis of the clamping seat, driving the second clamping part to deflect in the direction close to the central axis of the clamping seat, and at the same time causing the second control line to deform, and the two clamping parts deflect in the same direction around the axis.

45. The clip device of claim 44, wherein: After the first clamping portion deflects in a direction away from the central axis of the clamping seat until the first clamping portion abuts against the second control line or the second clamping portion, the first clamping portion drives the second clamping portion to deflect in a direction close to the central axis of the clamping seat, and at the same time causes the second control line to deform.

46. ​​The clip device of claim 45, wherein: After the first clamping portion abuts against the second control line or the second clamping portion, the angle between the first clamping portion and the second clamping portion remains unchanged.

47. The clip device of claim 44, wherein: The sheath tube includes an accommodating space for accommodating the deformed second control wire; a ratio of a sum of radial dimensions of the first control wire and the second control wire to a radial dimension of the accommodating space is 0.

5.

48. The clip instrument of claim 32, wherein: The conveying device includes a first control handle and a second control handle, the first control handle is connected to the first control line, the second control handle is connected to the second control line, the first control handle controls the first clamping part to deflect around the axis through the first control line, and the second control handle controls the second clamping part to deflect around the axis through the second control line.

49. The clip instrument of claim 32, wherein: The conveying device includes a control handle, which is connected to the first control line and the second control line. The control handle controls the first clamping part and the second clamping part to deflect around the axis simultaneously through the first control line and the second control line.

50. A method for controlling a clamp device, characterized in that: Applied to a clip instrument, the clip instrument comprises a clip device, a conveying device and a control device, the clip device is releasably arranged at the distal end of the conveying device, the control device comprises a control line, and the control line comprises a first control line and a second control line; the clip device comprises a clip seat and two clamping parts, the two clamping parts comprise a first clamping part and a second clamping part, the distal end of the first control line is releasably connected to the first clamping part, and the distal end of the second control line is releasably connected to the second clamping part; The control method comprises: Controlling the first control line to move from the proximal end to the distal end, so that the first control line drives the first clamping portion to deflect around the axis; Controlling the second control line to move from the distal end to the proximal end, so that the second control line drives the second clamping portion to deflect around the axis; The first clamping portion and the second clamping portion have the same deflection direction, and the clamp device deflects as a whole.

51. A method for controlling a clamp device, characterized in that: Applied to a clip instrument, the clip instrument comprises a clip device, a conveying device and a control device, the clip device is releasably arranged at the distal end of the conveying device, the control device comprises a control line, and the control line comprises a first control line and a second control line; the clip device comprises a clip seat and two clamping parts, the two clamping parts comprise a first clamping part and a second clamping part, the distal end of the first control line is releasably connected to the first clamping part, and the distal end of the second control line is releasably connected to the second clamping part; The control method comprises: Controlling the first control line to move toward the distal end so that the clip device is in a side-opening state; When the side opening angle of the clip instrument reaches a maximum value, the first control line is continuously controlled to move toward the distal end, and the first clamping portion and The second clamping parts deflect in the same direction.

52. A method for controlling a clamp device, characterized in that: Applied to a clip instrument, the clip instrument comprises a clip device, a conveying device and a control device, the clip device is releasably arranged at the distal end of the conveying device, the control device comprises a control line, and the control line comprises a first control line and a second control line; the clip device comprises a clip seat and two clamping parts, the two clamping parts comprise a first clamping part and a second clamping part, the distal end of the first control line is releasably connected to the first clamping part, and the distal end of the second control line is releasably connected to the second clamping part; at least one of the first clamping part and the second clamping part comprises a puncture member; The control method comprises: Controlling the clamping device to clamp a first target object at a first target position, and allowing the piercing member to penetrate the first target object; Controlling at least a portion of the clamp device to move to a second target position, and the piercing member drives the first target object to move synchronously; The clamping device is controlled to clamp the first object and the second object simultaneously.

53. The control method according to claim 52, characterized in that: The control method further comprises: Before controlling the clamp device to clamp the first target object at the first target position, the clamp device is controlled to switch to the side-open state; or, after the puncture member penetrates the first target object, the clamp device is controlled to switch to the side-open state.

54. The control method according to claim 53, characterized in that: The clamp seat includes a limiting portion, the limiting portion is located between the first clamping portion and the second clamping portion, and the first clamping portion and the second clamping portion respectively include a stopper portion; The controlling the clamp device to switch to the side-opening state includes: when the first clamping part or the second clamping part is controlled to deflect to a preset position in the direction of the limiting part, the stop part contacts the limiting part and stops.

55. The control method according to claim 52, characterized in that: The controlling the clamping device to clamp the first target object at the first target position and causing the piercing member to penetrate the first target object comprises: Controlling the first control line and the second control line to move from the proximal end to the distal end, so that the clip device is in an open state; Controlling the clamp device to move to a first target position; The first control line and the second control line are controlled to move toward the proximal end, and the clamp instrument clamps the first target object.

56. The control method according to claim 52, characterized in that: At least the other of the first clamping portion and the second clamping portion includes a puncture table, and the puncture table includes a puncture space; The controlling the clamping device to clamp the first target object at the first target position and causing the piercing member to penetrate the first target object comprises: Controlling the puncture platform or the puncture member to abut against the first target object; Controlling the puncture platform and the puncture member to approach each other until the puncture platform and the puncture member abut against the first target object at the same time; The clamp device is controlled to close so that the puncture member passes through the first target object and pierces the puncture space.

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