Insertion-type tissue clamping device and its clamping components

Abstract

An insertable tissue clamping device and its clamping component (100) are disclosed. The insertable tissue clamping device includes an integrally formed clamping component (100). The clamping component (100) includes a clamping body (110) and a release body (120). The clamping arm (111) of the clamping body (110) includes a clamping head (1111) and a flexible portion (1112), the flexible portion (1112) having a deformable structure capable of bending in the closing direction of the clamping body (110) and / or bending in the opening direction of the clamping body (110). A moving rod (200) directly drives the clamping body (110), and in conjunction with the deformation state of the flexible portion (1112), the clamping body (110) opens and closes. At the same opening, the length of this integral clamping body (110) is shorter than the combination of clamping arm and sleeve in the prior art. Moreover, the clamping body (110) and the detaching body (120) are connected as one piece through the first tear portion (130), and can be manufactured as a single piece.

Description

Technical Field

[0001] This application relates to the field of medical devices, specifically to the structure of an insertable tissue clip device for surgical procedures. Background Technology

[0002] An insertable tissue clip is an insertable medical device used to clamp tissues in the human or animal body to achieve hemostasis or closure. It includes hemostatic clips, tissue clips, etc.

[0003] For example, in minimally invasive treatment of gastrointestinal diseases, tissue clips are often inserted through the instrument channel of an endoscope to achieve therapeutic goals. Hemostatic clips (or tissue clips) are widely used to stop bleeding or close wounds at the site of gastrointestinal bleeding or trauma.

[0004] In existing technology, a type of hemostatic clip (or tissue clip) mainly achieves opening and clamping through the cooperation of clamping arms and a sleeve. Specifically, the left and right clamping arms are loosely assembled together by a pin. When the clamping arm assembly is pulled proximally, the clamping arm gradually retracts into the sleeve and engages with the front edge of the sleeve. Due to the limitation of the outer diameter of the sleeve, the sleeve applies a reverse compressive force to the clamping arm, causing the clamping arm to elastically deform inward and close. When the clamping arm assembly moves distally, it pushes the clamping arm out of the sleeve, and the clamping arm automatically reopens due to its elastic restoring force, thus enabling the clamping device to repeatedly open and close. Because this structure utilizes the axial space of the sleeve to achieve clamping arm closure, a portion of the clamping arm must retract within the sleeve. This results in a relatively long overall length of the hemostatic clip remaining in the patient's body after separation, making it more prone to causing injury and discomfort to the patient.

[0005] In another type of hemostatic clip (or tissue clip), the clamping arms are mainly connected by a pivot, and there is a sliding track inside the sleeve along which the pivot can slide. There is also a fixed pivot at the upper end of the sleeve, and the clamping arms have elongated holes through which the fixed pivot passes. Pushing and pulling the sliding pivot moves the two clamping arms up and down. When obstructed by the fixed pivot, the clamping arms are forced to move along the path of the elongated holes, thus opening and closing. This structure improves control precision and makes the clip smaller, but it has more parts, making the structure more complex and costly. The overall length of the clip remains relatively large even with the same opening width. Therefore, the overall size of the clip is longer, which is not conducive to passing through endoscopic instrument channels, and the entire clip causes a noticeable foreign body sensation when in contact with the body. Invention Overview

[0007] Technical issues

[0008] This application provides an insertable tissue clamping device and its clamping element to demonstrate a novel opening and clamping structure.

[0009] Solution to the problem

[0010] Technical solutions

[0011] To achieve the above objectives, one embodiment of this application provides an insertable tissue clamping device, comprising:

[0012] A clamping component, which is an integrally formed structure, includes a clamping body and a release body. The clamping body includes at least two clamping arms connected to each other. Each set of clamping arms includes a clamping head and a flexible portion. The flexible portion has a deformable structure that can be bent in the closing direction of the clamping body and / or in the opening direction of the clamping body. The clamping body and the release body are connected by a structure that can separate under the action of an external force applied by an operator.

[0013] A moving rod, which is connected to the clamping body, to drive the clamping body to open and close;

[0014] A transmission assembly, comprising a sleeve assembly and a transmission component passing through the sleeve assembly, the transmission component being connected to the moving rod, and the detachment body being rotatably connected to the sleeve assembly so that the clamping member can rotate as a whole relative to the sleeve assembly.

[0015] The sleeve assembly is connected to the control handle, and the control handle and the transmission component form a linkage structure to control the movement of the moving rod and the clamping component.

[0016] The moving rod has a first stroke, a second stroke, and a third stroke; in the first stroke, the moving rod drives the clamping heads away from each other to open the clamping heads; in the second stroke, the moving rod drives the clamping heads closer to each other, and the clamping body moves to a clamping state to clamp the target object; in the third stroke, the clamping body remains in the clamping state and separates from the moving rod, and the detaching body disconnects from the clamping body.

[0017] In one embodiment, the deformable structure includes a plurality of first contraction seams, which are arranged sequentially along the longitudinal direction of the clamping body.

[0018] In one embodiment, the first shrinkage joint is divided into several groups, and each group of the first shrinkage joint has at least one first shrinkage joint; the flexible part has a plurality of second shrinkage joints extending along its circumference, and the second shrinkage joints are arranged along the longitudinal direction; the two ends of each group of the first shrinkage joints respectively extend into the space between two longitudinally adjacent second shrinkage joints, and the overlapping area between the first shrinkage joint and the second shrinkage joint forms a torsional deformation section, so that the flexible part can be bent and torsional deformed.

[0019] In one embodiment, each of the limiting structures includes a plurality of limiting units arranged longitudinally along the clamping body. Each limiting unit includes a first limiting block and a second limiting block disposed opposite to each other. There is a gap between the first limiting block and the second limiting block disposed longitudinally. The second shrinkage seam communicates with the gap. During the bending process of the flexible portion in the opening direction, the first limiting block and the second limiting block approach each other and form a fastening structure.

[0020] In one embodiment, the initial state of the clamping body is a clamping state; the second contraction seam has a gap in the longitudinal direction, and the second contraction seam forms an adaptive floating structure that can deform in the clamping direction, so that when the clamping body clamps the target object, the flexible part can adaptively bend and deform in the closing direction according to the volume of the target object.

[0021] Based on the above objectives, one embodiment of this application provides a clamping component of an insertable tissue clamping device, including a clamping body and a release body, wherein the clamping body and the release body are integrally formed, the clamping body includes at least two clamping arms connected to each other, each set of clamping arms includes a clamping head and a bendable portion; the bendable portion has a deformable structure capable of bending in the closing direction of the clamping arm and / or bending in the opening direction of the clamping arm, and the clamping body and the release body are connected by a structure capable of separating under the action of an external force applied by an operator.

[0022] In one embodiment, the deformable structure includes a plurality of first contraction seams, which are arranged sequentially along the longitudinal direction of the clamping body.

[0023] In one embodiment, the flexible portion has a plurality of second contraction slits extending circumferentially thereon, and the second contraction slits are arranged longitudinally between each other; the two ends of each group of first contraction slits respectively extend into the space between two longitudinally adjacent second contraction slits, and the overlapping area between the first contraction slits and the second contraction slits forms a torsional deformation segment, so that the flexible portion can be bent and torsional deformed.

[0024] In one embodiment, each of the limiting structures includes a plurality of limiting units arranged longitudinally along the clamping body. Each limiting unit includes a first limiting block and a second limiting block disposed opposite to each other. There is a gap between the first limiting block and the second limiting block disposed longitudinally. The second shrinkage seam communicates with the gap. During the bending process of the flexible portion in the opening direction, the first limiting block and the second limiting block approach each other and form a fastening structure.

[0025] In one embodiment, the initial state of the clamping body is a clamping state; the second contraction seam has a gap in the longitudinal direction, and the second contraction seam of the limiting structure forms an adaptive floating structure that can deform in the clamping direction, so that when the clamping body clamps the target object, the flexible part can adaptively bend and deform in the closing direction according to the volume of the target object.

[0026] Beneficial effects of the invention

[0027] Beneficial effects

[0028] The insertable tissue clamping device according to the above embodiment includes an integrally molded clamping member. The clamping member includes a clamping body and a release body. The clamping body has a clamping arm including a clamping head and a flexible portion, the flexible portion having a deformable structure capable of bending in the closing direction of the clamping body and / or bending in the opening direction of the clamping body. In this structure, the sleeve in the existing structure is omitted; the clamping body is directly driven by a moving rod, and the opening and closing of the clamping body is achieved by combining the deformation state of the flexible portion. Under the same opening requirement, the length of this integral clamping body is shorter than the combination of the clamping arm and sleeve in the prior art. Furthermore, the clamping body and the release body are connected integrally by a first tear portion, allowing for integral molding. By adopting this integrally molded clamping member, the entire tissue clamping device has fewer parts, a simpler structure, lower assembly requirements, and significantly reduced costs.

[0029] Brief description of the accompanying drawings Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the structure of an insertable tissue clamping device in one embodiment of this application, wherein the transmission components are drawn in an abbreviated manner;

[0031] Figure 2 This is a partial cross-sectional view of the connection structure between the clamping member and the transmission assembly in one embodiment of this application;

[0032] Figure 3 This is a schematic diagram of the structure of the clamping body in a clamping state in one embodiment of this application;

[0033] Figure 4 This is a schematic diagram of the structure of the clamping body in the open state in one embodiment of this application;

[0034] Figure 5 This is a schematic diagram of the structure of the insertable tissue clamping device in the open state (the moving rod moves within the first stroke) in one embodiment of this application;

[0035] Figure 6 for Figure 5 A schematic diagram of the structure of the clamping component after partial cross-section in the state shown;

[0036] Figure 7 This is a schematic diagram of the structure of the insertable tissue clamping device in the clamping state (the moving rod moves within the second stroke) in one embodiment of this application;

[0037] Figure 8 for Figure 7 A schematic diagram of the structure of the clamping component after partial cross-section in the state shown;

[0038] Figure 9 This is a schematic diagram of the structure of an embodiment of the present application where the insertable tissue clamping device is in a clamping state and the clamping arm is locked in the locking structure (the moving rod moves within the third stroke).

[0039] Figure 10 for Figure 9 A schematic diagram of the structure of the clamping component after partial cross-section in the state shown;

[0040] Figure 11 This is a schematic diagram of the structure of the insertable tissue clamping device in one embodiment of the present application when the retaining section and the separating section on the moving rod break from the second tear (the moving rod moves within the third stroke) in the clamping state;

[0041] Figure 12 for Figure 11 A schematic diagram of the structure of the clamping component after partial cross-section in the state shown;

[0042] Figure 13 This is a schematic diagram of the structure of an insertable tissue clamping device in one embodiment of this application when the clamping body and the detaching body break from the first tear (the moving rod moves within the third stroke).

[0043] Figure 14 This is a schematic diagram of the unfolded shape of the clamping member in one embodiment of this application;

[0044] Figure 15 for Figure 14 Enlarged schematic diagram of the deformable structure of the bendable portion in the embodiment shown;

[0045] Figure 16 This is an enlarged schematic diagram of the deformable structure of the bendable portion in another embodiment of this application;

[0046] Figure 17 This is an enlarged schematic diagram of the deformable structure of the bendable portion in another embodiment of this application;

[0047] Figure 18 This is a schematic diagram of the deformation structure of the bendable portion when the clamping member clamps a thin tissue in one embodiment of this application;

[0048] Figure 19This is a schematic diagram of the deformation structure of the bendable portion when the clamping member clamps a thicker tissue in one embodiment of this application;

[0049] Figure 20 This is a schematic diagram of the deformable structure of the bendable portion in another embodiment of this application;

[0050] Figure 21 This is a schematic diagram of the structure of an integrally formed motion rod in one embodiment of this application;

[0051] Figure 22 This is a schematic diagram of the structure of the clamping head in an open self-locking state in one embodiment of this application;

[0052] Figure 23 This is a schematic diagram of the structure of an integrally formed motion rod breaking off from the second tear in one embodiment of this application;

[0053] Figure 24 This is a schematic diagram of the structure of the second tear portion on the integrally formed motion rod in one embodiment of this application;

[0054] Figure 25 This is a schematic diagram showing the connection between the moving rod and the clamping body in one embodiment of this application, with the clamping body in an open state.

[0055] Figure 26 This is a schematic diagram showing the connection between the moving rod and the clamping body in one embodiment of this application, with the clamping body in a clamping state.

[0056] Figure 27 This is a schematic diagram of the structure of the clamping body and the detaching body breaking through the first tear in one embodiment of this application;

[0057] Figure 28 This is a schematic diagram of the structure of the first tear portion in an embodiment of this application when it is in an unbroken state;

[0058] Figure 29 This is a schematic diagram of the structure when the first tear is in a fractured state in one embodiment of this application.

[0059] Invention Embodiments

[0060] Embodiments of the present invention

[0061] The present invention will now be described in further detail with reference to specific embodiments and accompanying drawings. Similar elements in different embodiments are referred to by associated similar element reference numerals. In the following embodiments, many details are described to facilitate a better understanding of this application. However, those skilled in the art will readily recognize that some features may be omitted in different situations, or may be replaced by other elements, materials, or methods. In some cases, certain operations related to this application are not shown or described in the specification. This is to avoid obscuring the core parts of this application with excessive description. For those skilled in the art, detailed description of these related operations is not necessary; they can fully understand the related operations based on the description in the specification and general technical knowledge in the art.

[0062] Furthermore, the features, operations, or characteristics described in the specification can be combined in any suitable manner to form various embodiments. At the same time, the steps or actions in the method description can be rearranged or adjusted in a manner obvious to those skilled in the art. Therefore, the various orders in the specification and drawings are only for the clear description of a particular embodiment and do not imply a necessary order, unless otherwise stated that a particular order must be followed.

[0063] The serial numbers assigned to components in this document, such as "first" and "second," are used only to distinguish the described objects and have no sequential or technical meaning. The terms "connection" and "linkage" used in this application, unless otherwise specified, include both direct and indirect connections (linkages).

[0064] This embodiment provides an insertable tissue clamping device (hereinafter referred to as a clamping device for ease of description), which is used to clamp tissues (collectively referred to as target objects) in human or animal bodies to achieve hemostasis or closure. It may include, but is not limited to, hemostatic clips, tissue clips, etc.

[0065] Please refer to Figure 1-13 The clamping device includes a clamping element 100, a moving rod 200, a transmission assembly 300, and a control handle 400.

[0066] Unlike existing technologies that utilize a combination of clamping arms and sleeves to achieve clamping structures, in this embodiment, the clamping component 100 is a one-piece molded structure. This one-piece molded structure means that the entire clamping component 100 is machined from a single material, rather than being assembled from two or more parts. One-piece molded structures (including other one-piece molded structures described below) can be manufactured using, but is not limited to, injection molding, laser cutting, and other machining processes. In particular, when laser cutting is used, extremely small gaps can be achieved, which is beneficial for miniaturization of the overall structure and improving structural compactness.

[0067] Please refer to Figure 2-4 The clamping member 100 includes a clamping body 110 and a disengaging body 120. The clamping body 110 and the disengaging body 120 form an integral structure, and are connected by a structure that allows them to be separated under external force applied by the operator, such as the first tear 130 shown in the figure or other structures. The first tear 130 allows the operator to separate the clamping body 110 and the disengaging body 120 by external force.

[0068] The clamping body 110 includes at least two clamping arms 111. The clamping arms 111 are connected as a single unit. Each set of clamping arms 111 includes a clamping head 1111 and a flexible portion 1112. The clamping arms 111 are arranged in a claw-like structure to clamp a target object. This claw-like structure is designed to firmly grasp the target object, for example in... Figure 1-13 In the case where there are two sets of clamping arms 111, the two clamping arms 111 are arranged opposite each other, and when they are as follows... Figure 3 When the object is closed (in a clamping state), it can be grasped, such as... Figure 18 and 19 As shown. In other embodiments, when there are different numbers of gripping arms 111, they may have different gripper structures. For example, when there are three gripping arms 111, the three gripping arms 111 may be arranged in a triangle to grasp the target object.

[0069] Please refer to Figure 3 and 4 In one embodiment, the flexible portion 1112 is a semi-cylindrical structure, which can be formed into a cylindrical structure when the clamping body 110 is closed. This semi-cylindrical shape refers to a non-complete cylindrical shape; it does not necessarily have to be half of the cylindrical structure, but can also be one-third of the entire cylindrical structure or other sizes. Furthermore, in other embodiments, the flexible portion 1112 can also be other structures, such as a sheet, and is not limited to this semi-cylindrical structure.

[0070] Unlike existing technologies where the clamping arm is opened and closed by limiting its position with a sleeve, in this embodiment, the opening and closing of the clamping arm 111 mainly relies on the deformation of the flexible portion 1112. The flexible portion 1112 has a deformable structure capable of bending in the closing direction of the clamping body 110 and / or in the opening direction of the clamping body 110. Please refer to... Figure 1-4 In the illustrated embodiment, the initial state of the clamping body 110 is a clamping state, meaning the flexible portion 1112 is in a clamping state without deformation. At this time, the flexible portion 1112 has at least a deformable structure capable of bending the clamping body 110 in the opening direction, thereby... Figure 4 As shown, the clamping body 110 is opened. Of course, in other embodiments, the initial state of the clamping body 110 may also be an open state; for example, the flexible portion 1112 may be in a bent state without deformation. Figure 4 The open state is shown. At this time, the flexible portion 1112 has at least a deformable structure capable of bending in the closing direction of the clamping body 110, thereby enabling it to move to the position shown. Figure 3 The state shown achieves the closure of the clamping body 110. In other embodiments, the flexible portion 1112 may simultaneously have a deformable structure capable of bending in both the closing direction and the opening direction of the clamping body 110, thereby allowing the clamping body 110 to change more flexibly during opening and closing.

[0071] The clamping head 1111 has a higher resistance to bending deformation than the flexible portion 1112, ensuring that the clamping arm 111 provides a better gripping effect on the target object. The bending deformation of the flexible portion 1112 is achieved through its integral structure. For example, it can be achieved by providing a shrinkage slit on the flexible portion 1112 that allows for contraction and deformation, or by varying the material thickness of the flexible portion 1112. Of course, it can also be achieved through other integral structures, which will be described in more detail later. This bending deformation of the flexible portion 1112 is reversible; that is, the flexible portion 1112 is elastic and can spring back to its original position when the external force is removed, thus this bending deformation can be repeated.

[0072] The lever 200 is used to control the opening and clamping states of the clamping member 100. Figure 1-13 In this configuration, the moving rod 200 is a pull rod. The moving rod 200 is connected to the clamping body 110, and its movement controls the clamping body 110's movement in the opening direction and the clamping direction. The transmission assembly 300 supports the clamping member 100 and transmits motion and force to the moving rod 200. Please refer to [reference needed]. Figure 1 and 2 The transmission assembly 300 includes a sleeve assembly 310 and a transmission member 320 passing through the sleeve assembly 310. The transmission member 320 is connected to the moving rod 200. The detachment body 120 of the clamping member 100 is rotatably connected to the sleeve assembly 310, for example, by means of a rotating seat 500, so that the clamping member 100 can rotate as a whole relative to the sleeve assembly 310. The sleeve assembly 310 is connected to a control handle 400, which forms a linkage structure with the transmission member 320 to control the movements of the transmission member 320, the moving rod 200, and the clamping member 100. For example, the operator can use the control handle 400 to rotate the clamping member 100 relative to the sleeve assembly 310, and can also use the control handle 400 to control the opening and closing of the clamping member 100.

[0073] The movement of the moving rod 200 can be along its axis or rotational, etc. For example, please refer to... Figure 5-6In one embodiment, when the moving rod 200 moves axially away from the control handle 400 and closer to the clamping body 110 (moving to the right as shown in the figure), the moving rod 200 can drive the clamping body 110 to open outward, thereby moving the clamping body 110 to the open state. Please refer to... Figure 7-8 In one embodiment, when the moving rod 200 moves axially towards the control handle 400 and away from the clamping body 110 (moving to the left as shown in the figure), the moving rod 200 can drive the clamping bodies 110 to move inward towards each other, thereby moving the clamping bodies 110 into a clamping state. Of course, in other embodiments, the movement relationship between the moving rod 200 and the clamping body 110 can be... Figure 5-8 The difference is as shown. For example, when the motion lever 200 moves toward the control handle 400, the clamping body 110 is driven to open, and when it moves toward the clamping body 110, the clamping body 110 is driven to close.

[0074] Regardless of its movement, the moving rod 200 has three strokes: a first stroke, a second stroke, and a third stroke. In the first stroke, the moving rod 200 moves the clamping heads 1111 away from each other to open them. In the second stroke, the moving rod 200 moves the clamping heads 1111 closer together, and the clamping body 110 moves to a clamping state to clamp the target object. In the third stroke, the clamping body 110 remains in the clamping state and separates from the moving rod 200, with the detachment body 120 separating from the clamping body 110 at the first tear 130. The separation of the clamping body 110 from the moving rod 200 and the detachment body 120 from the clamping body 110 during the third stroke can occur simultaneously, or one action can precede the other.

[0075] The first, second, and third strokes constitute three parts of the entire movement of the moving rod 200. These three strokes can be in the same direction, or at least two strokes can be in different directions. The strokes can be completely separate and unrelated, or at least two strokes can be continuous or overlapping; for example, the third stroke can be closely connected to the second stroke. Of course, the second and third strokes can also be two separate, non-continuous parts.

[0076] As an example, please refer to Figure 5-6 At this time, the moving rod 200 is in the first stroke. When the moving rod 200 moves away from the control handle 400 along its axis and moves closer to the clamping body 110 (moving to the right as shown in the figure), the moving rod 200 can drive the clamping body 110 to open outward, thereby moving the clamping body 110 to the open state.

[0077] Please refer to Figure 7-8At this time, the moving rod 200 is in the second stroke. When the moving rod 200 moves towards the control handle 400 along its axis and moves away from the clamping body 110 (moving to the left as shown in the figure), the moving rod 200 can drive the clamping body 110 to move inward towards each other, thereby moving the clamping body 110 to the clamping state.

[0078] Please refer to Figure 9-13 At this point, the moving rod 200 is in its third stroke. As the moving rod 200 approaches the control handle 400 along its axial direction and moves away from the clamping body 110 (moving to the left as shown in the diagram), this third stroke is in the same direction as the second stroke and is closely connected. That is, when the clamping body 110 moves to the clamping state, the moving rod 200 switches from the second stroke to the third stroke. This third stroke can be further divided into multiple sub-strokes, including a locking stroke, an inner release stroke, and an outer release stroke.

[0079] Please refer to Figure 9-10 When the moving rod 200 switches to the third stroke and moves to the position shown in the figure, the clamping body 110 is locked, and the moving rod 200 cannot move in the opposite direction to open the clamping body 110. During this process, the movement stroke of the moving rod 200 is the locking stroke.

[0080] Please refer to Figure 11-12 After the moving rod 200 completes its locking stroke, it enters the inner release stroke. When the moving rod 200 moves to the position shown in the figure, the clamping body 110 separates from the moving rod 200. The moving rod 200 can no longer move the clamping body 110, losing control of the clamping body 110, and the clamping body 110 remains in the locked state. During this process, the movement stroke of the moving rod 200 is the inner release stroke.

[0081] Please refer to Figure 13 After completing the inner release stroke, the moving rod 200 enters the outer release stroke. When the moving rod 200 moves to the position shown in the figure, the clamping body 110 and the release body 120 break off from the first tear 130. At this point, the clamping body 110 remains on the target object it is holding. The release body 120, the moving rod 200, and the transmission assembly 300 can be pulled out from the target object. The movement stroke of the moving rod 200 during this process is the outer release stroke.

[0082] certainly, Figure 9-13 Only one embodiment of the third stroke is shown. In other embodiments, the locking stroke, inner disengagement stroke, and outer disengagement stroke may overlap, for example, the inner disengagement stroke and the outer disengagement stroke may overlap, and the inner disengagement and outer disengagement may be performed simultaneously.

[0083] In the structures shown in the above embodiments, the sleeve in the existing structure is omitted. The clamping body 110 is directly driven by the moving rod 200, and the opening and closing of the clamping body 110 is achieved by combining the deformation state of the flexible part 1112. Since the limiting effect of the sleeve on the clamping arm 111 is eliminated, the clamping body 110 deforms from the flexible part 1112, and its deformation area is closer to the bottom of the entire clamping body 110. Therefore, under the same opening requirement, the length of this one-piece clamping body 110 is shorter than the combination of clamping arm 111 and sleeve in the prior art. At the same length, the one-piece clamping body 110 can open to a larger angle than the combination of clamping arm 111 and sleeve in the prior art, making it easier to grip the tissue of the target object. After the clamping body 110 disengages from the release body 120, this shorter clamping body 110 remains temporarily inside the target object. This reduces discomfort caused by excessively long clamp heads left by hemostatic clips (or tissue clips) and minimizes excessive wear on the target object caused by excessively long clamp heads left by hemostatic clips (or tissue clips). In addition, this integrated structure avoids the clearance required for component mating in shaft-hole fitting or sliding displacement, thus resulting in higher bending repeatability of the clamping arm 111.

[0084] Furthermore, in addition to the clamping body 110 itself being manufactured as a single piece, in this embodiment, the detachment body 120, which needs to be detached from the surgical object, is also manufactured as a single piece with the clamping body 110. The entire clamping component 100 is simple to manufacture. Compared to the multi-part assembly structure of existing hemostatic clips (or tissue clips), the use of this single-piece manufactured clamping component 100 results in fewer parts, a simpler structure, lower assembly requirements, significantly reduced costs, and higher control precision. Similarly, the length of the entire clamping component 100 is also shorter than that of existing hemostatic clips (or tissue clips). Since the inner diameter of the endoscopic instrument channel is very limited, this shorter clamping component 100 can more easily pass through the endoscopic instrument channel.

[0085] Furthermore, as described above, the bending deformation of the bendable portion 1112 is achieved through its integral structure. Please refer to... Figure 3 , 4 14-17 In some embodiments, the end of the clamping body 110 closest to the detachment body 120 is the proximal end, and the end away from the detachment body 120 is the distal end. The direction from the proximal end to the distal end of the clamping body 110 is the longitudinal direction of the clamping body 110. To achieve this integrated deformable structure, the deformable structure includes a plurality of first contraction slits 1113, which are arranged sequentially along the longitudinal direction.

[0086] In one embodiment, such as Figure 3 As shown, the clamping body 110 remains in the clamping state in the initial state, the first contraction slits 1113 remain in the initial state, and the flexible portion 1112 does not deform. Figure 4As shown, when the clamping body 110 needs to be opened, the flexible part 1112 deforms outward, and the first contraction slit 1113 contracts and deforms, thereby causing the outer side of the flexible part 1112 (the side of the clamping arms 111 that are opposite to each other) to contract, so that the entire clamping head 1111 opens.

[0087] Please refer to Figure 3 , 4 14-17, In one embodiment, the first contraction joint 1113 extends circumferentially around the flexible portion 1112. The first contraction joints 1113 are arranged in parallel. Of course, the first contraction joints 1113 can be arranged in other non-parallel arrangements besides being parallel to each other. By arranging the first contraction joints 1113 uniformly in parallel circumferentially along the flexible portion 1112, the bending deformation direction of each first contraction joint 1113 can be unified, making the bending deformation of the clamping body 110 smoother and more stable.

[0088] To achieve smoother bending changes, in one embodiment, the first contraction joint 1113 is divided into several groups, and each group of first contraction joints 1113a has at least one first contraction joint 1113. For example... Figure 3 , 4 as well as Figure 14-15 As shown, in this embodiment, each group of first contraction joints 1113a has two first contraction joints 1113. As... Figure 16 and 17 As shown, in this embodiment, each group of first shrinkage seams 1113a has one first shrinkage seam 1113. The contraction of each first shrinkage seam 1113 allows the flexible portion 1112 to have a certain bending angle. With the combination of multiple groups of first shrinkage seams 1113, the flexible portion 1112 can have a larger opening and closing angle. The length formed by the combination of all the first shrinkage seams 1113 in the longitudinal direction determines the bending deformation area of ​​the entire flexible portion 1112. The number of first shrinkage seam groups 1113a, the longitudinal gap between adjacent first shrinkage seam groups 1113a, and the number of first shrinkage seams 1113 within a first shrinkage seam group 1113a can be flexibly set according to actual needs. For example, there can be 4-6 groups of first shrinkage seams 1113a.

[0089] Please refer to Figure 17 In one embodiment, the first contraction slot 1113 is an elongated groove, with two opposing raised arc-shaped edges 1113a in the middle. When the clamping member 100 is opened to a predetermined position, the arc-shaped edges 1113a contact each other, thereby determining the maximum opening angle. When the clamping member 100 is in a clamping state, the arc-shaped edges 1113a contact each other, thereby providing support for the clamping member 100.

[0090] Considering the needs of minimally invasive surgery, clamping devices are typically very delicate and compact structures. Therefore, while maintaining a small size, the clamping component 100 should generally not be made of a thick material. However, a thinner material requirement may weaken the strength of the flexible portion 1112. Specifically, for example... Figure 4 As shown, when the operator applies excessive force, causing the clamping arm 111 to bend outward at an excessive angle, the clamping arm 111 may break from the bendable portion 1112. Based on this, in one embodiment, as... Figure 4 As shown, the bendable portion 1112 has a limiting structure 1114, which limits the maximum angle at which the bendable portion 1112 bends in the opening direction. That is, within the maximum angle, the bendable portion 1112 can be bent freely. When its bending angle reaches the maximum angle, the limiting structure 1114 begins to function, limiting the bendable portion 1112 from continuing to bend outward, thus protecting the bendable portion 1112 and the clamping body 110. This limiting structure 1114 mainly achieves the limitation of the maximum angle by limiting the clamping body 110 in the longitudinal direction.

[0091] Please refer to Figure 3 , 4 as well as Figure 14-17 In one embodiment, each limiting structure 1114 includes a plurality of limiting units 1114a arranged longitudinally along the clamping body 110. Each limiting unit 1114a includes a first limiting block 1115 and a second limiting block 1116 disposed opposite to each other. Figure 15 As shown in the two enlarged partial views a and b, there is a longitudinally arranged gap 1117 between the first limiting block 1115 and the second limiting block 1116. During the bending of the flexible portion 1112 in the opening direction, the first limiting block 1115 and the second limiting block 1116 approach each other and form a fastening structure (see...). Figure 15 (See enlarged view shown in b). That is, in the initial state, the first limiting block 1115 and the second limiting block 1116 are as follows: Figure 15 As shown in Figure a, a gap 1117 is left. When the clamping body 110 gradually opens outward, the first limiting block 1115 and the second limiting block 1116 move relative to each other in the longitudinal direction, and the gap 1117 gradually decreases. Finally, when the flexible part 1112 reaches its maximum angle, at this time... Figure 15 As shown in Figure b, the first limiting block 1115 and the second limiting block 1116 are fitted together to form a limit.

[0092] like Figure 14-17 In one embodiment, the first limiting block 1115 and the second limiting block 1116 are two interlocking limiting hook structures. This limiting hook structure can also be replaced with other structures having similar functions. Figure 3 , 4In one embodiment, the first contraction seam 1113 is located in the middle of the circumference of the bendable portion 1112, and there are at least two sets of limiting structures 1114. On the circumference of the bendable portion 1112, limiting structures 1114 are respectively provided on both sides of the bendable portion 1112, which can further ensure that the entire bendable portion 1112 can bend and be limited synchronously.

[0093] Please refer to Figure 3 , 4 as well as Figure 14-17 In one embodiment, within the same limiting unit 1114a, the first limiting block 1115 and the second limiting block 1116 are formed by dividing the sidewall of the flexible portion 1112 located on the side of the first contraction slit 1113. The first limiting block 1115 and the second limiting block 1116 are connected at one end near the first contraction slit 1113, while the other ends are separated. When the clamping body 110 opens outwards, the first limiting block 1115 and the second limiting block 1116 also open along with the clamping body 110.

[0094] like Figure 3 , 4 as well as Figure 14-15 As shown, each group of first shrinkage seams 1113a can be aligned with a limiting unit 1114a in the circumferential direction, thereby ensuring that the limiting effect of the limiting unit 1114a can be accurately applied to the corresponding first shrinkage seam 1113, so as to prevent the first shrinkage seam 1113 from continuing to shrink and deform after bending to the maximum angle, thus preventing the breakage of the bendable part 1112.

[0095] The number of limiting units 1114a can be greater than the number of first shrinkage joint groups 1113a, thereby completely covering all first shrinkage joints 1113 in the longitudinal direction to achieve a better limiting effect. Of course, the number of limiting units 1114a can also be less than or equal to the number of first shrinkage joint groups 1113a.

[0096] Further, please refer to Figure 14-17 In one embodiment, a second contraction joint 1118 is provided between the first limiting block 1115 and the second limiting block 1116, with at least a portion of the contraction joint 1112 circumferentially disposed. The second contraction joint 1118 can separate the first limiting block 1115 and the second limiting block 1116, thereby allowing them to move relative to each other. The second contraction joint 1118 communicates with the gap 1117 between the first limiting block 1115 and the second limiting block 1116.

[0097] Considering that the bending motion of the clamping body 110 in the opening direction and the bending motion in the clamping direction are often accompanied by torsional motion around its circumference, please refer to... Figure 14-17In one embodiment, the two ends of each set of first contraction slits 1113a respectively extend into the space between the second contraction slits 1118 of two longitudinally adjacent limiting units 1114a. The overlapping area between the first contraction slits 1113 and the second contraction slits 1118 forms a twisted deformation section 1119, enabling the flexible portion 1112 to bend and twist. With the twisted deformation section 1119 provided, the bending deformation of the clamping body 110 is smoother, and the flexible portion 1112 is prevented from breaking due to torsion. By adjusting the circumferential length and longitudinal height of the twisted deformation section 1119, the maximum opening angle, bending flexibility, or support of the flexible portion 1112 can be further changed, which can be flexibly set according to actual needs.

[0098] exist Figure 15 and 17 In the illustrated embodiment, the second contraction joint 1118 is arranged in a straight line. Figure 16 In the illustrated embodiment, the second contraction joint 1118 is U-shaped.

[0099] Furthermore, as mentioned above, after the clamping body 110 clamps the target object 1, the moving rod 200 needs to move together with the clamping body 110 to the predetermined locking structure for locking. However, in actual use, when the clamping body 110 clamps human tissue with different hardness or thickness (e.g., Figure 18 and 19 As shown, this limits the closing angle of the clamping body 110. Because the closing angle is related to the stroke of the moving rod 200, the clamping body 110 and the moving rod 200 cannot move to the position of the locking structure, and the clamping body 110 cannot remain in the clamping state.

[0100] For this question, please refer to... Figure 18 and 19 The second contraction joint 1118 has a gap in the longitudinal direction. The second contraction joint 1118 of the limiting structure 1114 forms an adaptive floating structure that can deform in the clamping direction, so that when the clamping body 110 clamps the target object 1, the flexible part 1112 can adaptively bend and deform in the closing direction according to the volume of the target object 1, providing an adaptive stroke range for the moving rod 200 and the clamping body 110, increasing the rigid deformation margin of the moving rod 200, and always allowing the moving rod 200 and the clamping body 110 to move to the locking position of the locking structure, so as to achieve accurate and reliable locking.

[0101] For details, please refer to Figure 18 When the clamping body 110 clamps a thinner target object 1, the clamping body 110 can close normally, and the second contraction slit 1118 maintains a normal gap (e.g., Figure 18(As shown in the enlarged view in section a) the moving rod 200 and the clamping body 110 can move precisely to the position of the locking structure as shown in the locking stroke above, locking the clamping body 110 in the clamping state. Please refer to... Figure 19 When the clamping body 110 clamps a relatively thick target object 1, the clamping bodies 110 cannot close together as shown. Figure 18 As shown, if the moving rod 200 is pulled further, the second contraction slot 1118 can deform in the closing direction of the clamping body 110 (e.g., Figure 19 (Partial enlarged view shown in a) For example, in one embodiment, each second contraction joint 1118 can provide 0.02-0.05 mm of compression in the longitudinal direction. With the number of second contraction joints 1118 shown in the figure, the cumulative amount of multiple second contraction joints 1118 can provide a deformation of approximately 0.1-0.2 mm, thereby allowing the bendable portion 1112 to... Figure 19 The inward bending deformation is shown. Figure 19 The flexible portion 1112 protrudes slightly outward on both sides to compensate for the lost stroke on the clamping body 110, so that the clamping body 110 can finally be locked onto the locking structure.

[0102] The above embodiment illustrates a structure in which the bendable portion 1112 achieves bending deformation by opening a contraction joint. However, the deformation structure of the bendable portion 1112 in this embodiment is not limited to this, and can also be achieved in other ways. For example, please refer to... Figure 20 In one embodiment, the thickness of the bendable portion 1112 in the clamping body 110 may be set to be thinner than other portions, for example, thinner than the clamping head 1111 and the connecting portion 112 (described in detail below), so that when the moving rod 200 drives the clamping body 110 to move, the bendable portion 1112 can be bent and deformed preferentially.

[0103] Furthermore, to reduce mutual interference between the clamping bodies 110 when closed, in one embodiment, the opposite ends of the clamping bodies 110 are provided with a clearance structure 1110 to allow them to avoid each other when closed. Please refer to... Figure 16 In this embodiment, the opposite ends of the clamping bodies 110 retract inward to form a clearance structure 1110, and a clearance groove is formed between the two opposite clamping bodies 110 through the retracted area. The width of the clearance groove gradually increases along the longitudinal direction of the clamping bodies 110, wherein the end of the clearance groove near the clamping head 1111 is wider than the other end. Of course, the clearance structure 1110 can also be other structures that can perform clearance functions, and is not limited to the structure shown in the figure.

[0104] Furthermore, the moving rod 200 can be connected to the clamping body 110 through various structures, as long as it can drive the clamping body 110 to move in the opening direction and the clamping direction. The moving rod 200 can be directly connected to the clamping body 110, or it can be connected to the clamping body 110 through the clamping body connecting structure 600.

[0105] Please refer to Figure 6 , 21 In one embodiment, the clamping body connection structure 600 includes two connecting rods 610. One end of each connecting rod 610 is connected to the distal end of the moving rod 200 and can rotate around an axis 620. The other ends are connected to the horizontal axis on the clamping head 1111 and can also rotate around the horizontal axis. The connecting rod 610 assembly is Y-shaped, which is intended to effectively transmit the pushing and pulling forces of the moving rod 200 to the clamping head 1111, thereby realizing the opening and closing control of the clamping head 1111.

[0106] Please refer to Figure 22 When the moving rod 200 moves during its first stroke, as the moving rod 200 moves away from the end of the control handle 400, the clamping body 110 can open in the opening direction. The rotation center A of the connecting rod 610 and the moving rod 200 can cross the line B connecting the two rotation centers between the connecting rod 610 and the clamping head 1111, thus forming a self-locking mechanism. This keeps the clamping body 110 in the open state, preventing it from being easily closed by external force; the clamping head 1111 can only be retracted by controlling the control handle 400.

[0107] Of course, the clamping body connection structure 600 can also be connected using other structures, such as various clamping arm and pull rod connection methods disclosed in the prior art.

[0108] Further, please refer to Figure 3 and 4 In one embodiment, the clamping body 110 includes a connecting portion 112. The connecting portion 112, the flexible portion 1112, and the clamping head 1111 are sequentially connected as a single unit. A first tearing portion 130 is connected between the connecting portion 112 and the detaching body 120.

[0109] Please refer to Figure 3-13 The connecting portion 112 has the aforementioned locking structure 1121, which is used to lock the clamping body 110 in a clamping state. Of course, in other embodiments, the clamping body 110 may not include the connecting portion 112, and the locking structure 1121 may be directly provided on the flexible portion 1112 or other structures.

[0110] As described above, the locking structure 1121 is used to lock the clamping body 110 in a clamping state. The locking structure 1121 at least prevents the clamping body 110 from moving in the opening direction, ensuring that the clamping body 110 remains in a clamping state. Of course, the locking structure 1121 can also simultaneously prevent the clamping body 110 from moving towards the control handle 400, which facilitates the disengagement of the clamping body 110 from the moving rod 200. To achieve this locking effect, the locking structure 1121 can lock in conjunction with the moving rod 200, the clamping body connecting structure 600, and the clamping body 110 itself.

[0111] In one embodiment, the moving rod 200 or the clamping body connecting structure 600 has a locking engagement portion 210. When the moving rod 200 moves along the third stroke, the locking structure 1121 is located on the moving path of the locking engagement portion 210. When the locking engagement portion 210 moves to the locking structure 1121, the two form a locking engagement, keeping the clamping body 110 in the clamping state.

[0112] Please refer to Figure 6 , 10 In one embodiment, the clamping body 110 forms a cylindrical structure. One end of the moving rod 200 extends into the cylindrical structure and connects to the clamping body 110. The locking engagement portion 210 includes an elastic body protruding towards the clamping body 110, and the locking structure 1121 includes a groove capable of engaging with the elastic body. The elastic body is located within the clamping body 110 and is in a compressed deformation state, enabling it to engage with the groove under elastic force.

[0113] Please refer to the following: Figure 6 , 10 21 and 22, the third stroke of the moving rod 200 moves from the clamping body 110 to the disengaging body 120. The elastic body is a spring piece integrally formed on the moving rod 200, and the spring piece is inclined towards the distal end of the clamping body 110 along its protruding direction. Figure 6 As shown, the inclined spring can move along the inner wall of the clamping body 110 towards the control handle 400 when the moving rod 200 moves along the third stroke, preventing the spring from getting stuck in other parts of the clamping body 110. Figure 10 As shown, when the spring moves to the slot position, the spring can be inserted into the slot under the elastic force to prevent the moving rod 200 and the clamping body 110 from retracting and opening the clamping state.

[0114] Of course, the spring shown in the figure is only one example of the locking engagement part 210. In other embodiments, other structures that may achieve the locking function may be used, such as the locking method of clamping arm or pull rod and sleeve disclosed in the prior art.

[0115] There is one or more locking structures 1121 and locking mating parts 210. For a more stable locking of the clamping body 110, please refer to... Figure 21 and 22 In one embodiment, there are two or more locking structures 1121 and locking engagement portions 210 (two are shown in the figure). To ensure even force distribution, in one embodiment, the locking structures 1121 are evenly distributed around the clamping body 110 (i.e., adjacent locking structures 1121 are spaced at the same angle), and the locking engagement portions 210 are positioned opposite to the clamping body 110, for example, they can also be evenly distributed around the moving rod 200.

[0116] Furthermore, in order to achieve the internal disengagement of the clamping body 110 from the moving rod 200, please refer to... Figure 21 In one embodiment, the motion rod 200 is a one-piece molded structure having a retaining section 220 and a separating section 230. The retaining section 220 and the separating section 230 are connected by a second tear 240.

[0117] The retaining section 220 is connected to the clamping body 110 via the clamping body connecting structure 600. The locking engagement part 210 is located on the retaining section 220 or on the clamping body connecting structure 600. Figure 12 As shown, when the moving rod 200 is in the inner disengagement stroke, the second tear 240 breaks, and the retaining section 220 and the separating section 230 separate. The retaining section 220 remains in the surgical patient's body along with the clamping body 110, while the separating section 230 is removed from the surgical patient's body along with the detaching body 120.

[0118] In this embodiment, the retaining section 220 and the separating section 230 are integrally formed, meaning the entire moving rod 200 is machined from the same material, rather than being assembled from two or more parts. Furthermore, the locking engagement part 210 can also be integrally formed with the retaining section 220 and the separating section 230. This moving rod 200 is easy to manufacture, requires no secondary assembly, has lower costs, and better stability. The width of the second tear section 240 can be reserved as needed, and multiple second tear sections 240 can be provided according to functional requirements, making the structure more reliable and stable.

[0119] To assist the movement bar 200 in disengaging from the inside, please refer to... Figure 22 and 24 In one embodiment, the disengaging body 120 has a stop structure 121 located on the movement path of the retaining segment 220. As the moving rod 200 moves along its third stroke, specifically when the moving rod 200 is in its inner disengagement stroke, the stop structure 121 prevents the retaining segment 220 from continuing to move with the separating segment 230, thereby facilitating the separation of the retaining segment 220 and the separating segment 230.

[0120] exist Figure 24 In the embodiment shown, the moving rod 200 has a slot 260 arranged along its axial direction. The stop structure 121 protrudes from the moving rod 200 and extends into the slot 260 so as to abut against the groove wall of the slot 260 when the moving rod 200 moves along its inner disengagement stroke.

[0121] Further, please refer to Figure 24 In one embodiment, the end of the retaining section 220 opposite to the separating section 230 has a concave region 241, and the second tear portion 240 is disposed within the concave region 241. Figure 23 and 24 As shown, this design allows the fracture surface of the second tear 240 to be contained within the concave region 241 after it breaks, preventing the sharp burrs from being exposed and avoiding damage to the surgical subject.

[0122] In the figure, the concave region 241 has an arc-shaped end face. In other embodiments, the concave region 241 may also have an end face of other shapes.

[0123] Of course, besides achieving internal separation through the aforementioned one-piece molding structure, the 200-bar can also achieve internal separation through other structures. Please refer to [reference needed]. Figure 25 and 26 In one embodiment, the moving rod 200 achieves internal disengagement through a split-assembly structure. Specifically, the moving rod 200 has a snap-fit ​​groove 281 with an opening 282 smaller than its cavity. The moving rod 200 is snapped into the clamping body connecting structure 600 through the snap-fit ​​groove 281, specifically connected to the mounting shaft 620 of the connecting rod 610. When the moving rod 200 moves along the first and second strokes, due to the blocking effect of the opening 282, the clamping body connecting structure 600 and the clamping body 110 can move together with the moving rod 200 to achieve the opening and clamping of the clamping body 110. Figure 25 As shown, when the moving rod 200 is in the inner disengagement stroke, the clamping body 110 and the clamping body connecting structure 600 are blocked and cannot continue to move towards the control handle 400. At this time, under the action of external force, the clamping body connecting structure 600 disengages from the opening 282 of the snap-fit ​​groove 281, and the moving rod 200 disengages from the clamping body connecting structure 600, thus achieving inner disengagement.

[0124] The above are just two examples of internal disengagement structures. In other embodiments, the moving rod 200 and the clamping body 110 can also be separated by other internal disengagement structures, such as the internal disengagement structure of the pull rod and the clamping arm in the prior art.

[0125] Further, please refer to Figure 27-29In the external detachment structure, there is at least one first tear portion 130. The ends of the clamping body 110 and the detachment body 120 opposite each other have concave regions 1122. The first tear portion 130 is disposed within the concave region 1122, and the detachment body 120 and the clamping body 110 are connected only through the first tear portion. In order to distribute the force evenly, in one embodiment, the first tear portion 130 is evenly distributed around the circumference of the clamping body 110 and the detachment body 120.

[0126] Please refer to Figure 13 , 27 -29, In ​​one embodiment, the detachment body 120 includes a cylindrical body 122 and a suspension portion 124. The sidewall of the body 122 has a suspension cavity 123, and the suspension portion 124 is placed inside the suspension cavity 123. The suspension portion 124 is aligned with the first tear portion 130.

[0127] Please refer to Figure 5 , 6 11-13, the suspension part 124 is provided with a follower 125, for example, the follower 125 is a follower shaft fixedly mounted on the suspension part 124, which passes through the suspension part 124. The follower 125 is used to drive the suspension part 124 and the movement rod 200 together to move closer to the control handle 400 when the movement rod 200 moves along the third stroke. Specifically, as... Figure 5 and 6 As shown, the moving rod 200 may also have a groove 250, and the follower 125 is placed at the bottom of the groove 250. Figure 11-13 As shown, as the moving rod 200 moves toward the control handle 400, when the moving rod 200 enters the outer disengagement stroke, the top of the slide 250 moves to the follower 125, thereby starting to drive the follower 125 and the suspension part 124 to move toward the control handle 400, thereby causing the disengaging body 120 to separate from the clamping body 110.

[0128] Please refer to Figure 28 and 29 The two sides of the suspension part 124 are connected to the main body 122 via cantilever arms 127, allowing the suspension part 124 to deform more easily relative to the main body 122. Specifically, when the moving rod 200 moves along the outer disengagement stroke, the disengagement body 120 as a whole, supported by the rotating seat 500 and the sleeve assembly 310, cannot move independently toward the control handle 400. When the moving rod 200 pulls the suspension part 124, the main body 122 of the disengagement body 120 remains stationary, while the cantilever arms 127 of the suspension part 124 deform under the pulling force of the moving rod 200. During the deformation of the suspension part 124, the main body 122 of the disengagement body 120 provides reverse support to the clamping body 110, thereby gradually elongating the material of the suspension arm and the first tear portion 130. Figure 28As shown, when the yield limit is reached, fracture occurs, and the suspension part 124 is externally detached from the clamping body 110. Subsequently, the detachment body 120, the moving rod 200, and the transmission assembly 300 can be removed from the surgical patient's body together.

[0129] To prevent the suspension part 124 from deforming in an undesirable direction when the moving rod 200 pulls it, please refer to... Figure 28 and 29 In one embodiment, the suspension cavity 123 has a guide groove 126 arranged along the axial direction of the detachment body 120, and the suspension part 124 is placed in the guide groove 126 to guide the suspension part 124 to move into the guide groove 126. The guide direction defined by the guide groove 126 is aligned with the first tear 130, thereby making it easier for the suspension part 124 to break off from the first tear 130.

[0130] Further, please refer to Figure 1 and 2 Regarding the transmission assembly 300, the sleeve assembly 310 typically includes a spring support sleeve 311, in which the transmission element 320 (e.g., a traction control line) is disposed. The moving rod 200 can be fixedly connected to the transmission element 320 via a reducing adapter 321 or other structure. An adapter tube 312 is fixedly disposed outside the spring support sleeve 311, which is rotatably connected to the rotating seat 500. A clamping element 100 is mounted on the rotating seat 500, allowing the entire clamping element 100 to rotate relative to the transmission assembly 300 along with the rotating seat 500.

[0131] The above examples illustrate the present invention only to aid in understanding it and are not intended to limit the scope of the invention. Those skilled in the art can make various simple deductions, modifications, or substitutions based on the principles of this invention.

Claims

1. An insertable tissue clip closure device, comprising: include: A clamping component, which is an integrally formed structure, includes a clamping body and a release body. The clamping body includes at least two clamping arms connected to each other. Each set of clamping arms includes a clamping head and a flexible portion. The flexible portion has a deformable structure capable of bending in the closing direction of the clamping body and / or bending in the opening direction of the clamping body. The clamping body and the release body are connected by a structure that allows them to separate under the action of an external force applied by an operator. The clamping component includes a connecting portion, through which the clamping body is connected to the release body. The connecting portion, the flexible portion, and the clamping head are sequentially integrated. A moving rod, which is connected to the clamping body, to drive the clamping body to open and close; A transmission assembly, comprising a sleeve assembly and a transmission component passing through the sleeve assembly, the transmission component being connected to the moving rod, and the detachment body being rotatably connected to the sleeve assembly so that the clamping member can rotate as a whole relative to the sleeve assembly. The sleeve assembly is connected to the control handle, and the control handle and the transmission component form a linkage structure to control the movement of the moving rod and the clamping component. The moving rod has a first stroke, a second stroke, and a third stroke; in the first stroke, the moving rod drives the clamping heads away from each other to open the clamping heads; in the second stroke, the moving rod drives the clamping heads closer to each other, and the clamping body moves to a clamping state to clamp the target object; in the third stroke, the clamping body remains in the clamping state and separates from the moving rod, and the detaching body disconnects from the clamping body.

2. The insertable tissue closure device of claim 1, wherein, The deformable structure includes several first contraction joints, which are arranged sequentially along the longitudinal direction of the clamping body.

3. The insertable tissue closure device of claim 2, wherein the at least one tissue engaging member comprises a plurality of tissue engaging members. The first shrinkage joint is divided into several groups, and each group of the first shrinkage joint has at least one first shrinkage joint; the flexible part has a plurality of second shrinkage joints extending along its circumference, and the second shrinkage joints are arranged along the longitudinal direction; the two ends of each group of the first shrinkage joints respectively extend into the space between two longitudinally adjacent second shrinkage joints, and the overlapping area between the first shrinkage joint and the second shrinkage joint forms a torsional deformation section so that the flexible part can be bent and torsional deformed.

4. The insertable tissue closure device of claim 3, wherein the at least one tissue engaging member comprises a plurality of tissue engaging members. The first shrinkage seam extends circumferentially around the flexible portion.

5. The insertable tissue closure device of claim 4, wherein the at least one tissue engaging member comprises a plurality of tissue engaging members. The bendable portion has a limiting structure, which limits the maximum angle at which the bendable portion bends in the opening direction.

6. The insertable tissue closure device of claim 5, wherein, Each of the limiting structures includes a plurality of limiting units arranged longitudinally along the clamping body. Each limiting unit includes a first limiting block and a second limiting block disposed opposite to each other. There is a gap between the first limiting block and the second limiting block disposed longitudinally. The second contraction seam communicates with the gap. During the bending process of the flexible part in the opening direction, the first limiting block and the second limiting block approach each other and form a fastening structure.

7. The insertable tissue closure device of claim 6, wherein the at least one tissue engaging member comprises a plurality of tissue engaging members. In the same limiting unit, the first limiting block and the second limiting block are formed by the sidewall of the flexible part located on the side of the first shrinkage seam through the second shrinkage seam. The first limiting block and the second limiting block are connected as one piece at one end near the first shrinkage seam, and the other end is separated from each other.

8. The insertable tissue closure device of claim 7, wherein the at least one tissue engaging member comprises a plurality of tissue engaging members. The initial state of the clamping body is the clamping state; the second contraction joint has a gap in the longitudinal direction, and the second contraction joint forms an adaptive floating structure that can deform in the clamping direction, so that when the clamping body clamps the target object, the flexible part can adaptively bend and deform in the closing direction according to the volume of the target object.

9. The insertable tissue closure device of any one of claims 1-8, wherein, The opposite ends of the clamping bodies are provided with a clearance structure so that they can avoid each other when the clamping bodies are closed.

10. The insertion tissue clip closure device of any one of claims 1-8, wherein, The connecting part has a locking structure, which is used to lock the clamping body in the clamping state.

11. The insertable tissue closure device of claim 10, wherein the at least one tissue engaging member comprises a plurality of tissue engaging members. The clamping body forms a cylindrical structure, and one end of the moving rod extends into the cylindrical structure and is connected to the clamping body. The moving rod has a locking engagement part, which includes an elastic body protruding towards the clamping body. The locking structure includes a groove that can engage with the elastic body. The elastic body is located inside the clamping body and is in a state of compression deformation. The elastic body can engage with the groove under the action of elastic force.

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