Clamping suture system

Abstract

A clamping suture system is disclosed, wherein each clamping device has a clamping separation head with a thread-locking structure. After the clamping separation head clamps and fixes the corresponding tissue, the operator can manipulate the traction thread and / or the clamping separation head. This allows the traction thread to be locked within the thread-locking structure of one of the clamping separation heads after pulling at least two clamping separation heads closer together. The thread-locking structure of the clamping separation head itself secures the traction thread, thus holding these close-to-each clamping separation heads in a proximal position. Simultaneously, when the clamping separation heads are pulled together, excess traction thread can be cut off using a cutting device. The pre-existing traction thread, locked to each clamping separation head, keeps these clamping separation heads in a close-to-each-head state, promoting wound closure and healing. This structure is simpler, easier to manufacture, and more convenient to operate compared to existing structures.

Description

Technical Field

[0001] This application relates to the field of medical devices, specifically to a clamping suture system. Background Technology

[0002] With the iterative advancements in endoscopic technology, minimally invasive treatment methods have gradually replaced some traditional open surgeries. Early gastrointestinal lesions that previously required open surgery or laparoscopy can now be precisely intervened through minimally invasive endoscopic techniques. Their core advantages lie in controllable tissue damage, shorter postoperative recovery periods, and improved efficiency in the utilization of medical resources. However, reliable closure of defects / wounds during surgery remains a key bottleneck restricting the widespread adoption of this technology, as its effectiveness directly impacts the incidence of postoperative complications and the overall applicability of the technique.

[0003] Existing clamping devices, when dealing with special wounds such as large wounds or wounds with special shapes, often require the use of multiple clamping devices in combination to clamp and fix the tissues on both sides of the wound. These clamping devices are then pulled together by traction wires to maintain the wound in a closed state and promote healing. However, in current technologies, fixing these clamping devices typically involves first using traction wires to pull them close to their corresponding fixators, and then relying on the fixators to achieve mutual proximity and positional fixation of multiple clamping devices. This results in a complex overall structure and is difficult to manufacture. Utility Model Content

[0004] This application provides a clamping suture system to demonstrate a system for clamping and suturing a wound using multiple clamping devices.

[0005] To achieve the above objectives, one embodiment of this application provides a clamping suture system, comprising:

[0006] At least two clamping devices are provided, each having a clamping and separating head and a clamping control assembly for an operator to operate the clamping device. The clamping and separating head is used to clamp and fix tissue on one or both sides of a wound within a target object. The clamping control assembly is detachably connected to the clamping and separating head. The clamping and separating head has a wire locking structure, which allows the operator to control a traction wire to lock with the wire locking structure after the clamping and separating head has clamped and fixed the corresponding tissue.

[0007] And a shearing device for cutting excess traction wires within the target object.

[0008] In one embodiment, the wire locking structure includes a threading groove through which the pull wire passes. The space inside the threading groove is at least divided into an active area for the pull wire to move and a locking area for locking the pull wire. The active area and the locking area are connected so that the pull wire can move from the active area into the locking area under the control of the operator. The threading groove is arranged transversely along the clamping and separating head.

[0009] In one embodiment, the active area is located in front of the locking area, so that the pull line can be moved from the active area into the locking area from front to back under the pull of the operator.

[0010] In one embodiment, the width of the active area is greater than the outer diameter of the corresponding pull wire, so that the pull wire can move within the active area;

[0011] And / or, the width of the locking zone is smaller than the outer diameter of the corresponding pull line, so that the pull line can be locked within the locking zone.

[0012] In one embodiment, at least one sidewall of the active area has a first elastic arm that is deformable in the width direction. The first elastic arm extends to the entrance of the locking area and, in the reset state, blocks the exit of the locking area to prevent the pull line from returning from the locking area to the active area.

[0013] In one embodiment, the locking area has a receiving portion for accommodating the pull line and an anti-detachment portion for preventing the pull line from detaching from the movable area. At least one sidewall of the anti-detachment portion forms a second elastic arm. The anti-detachment portion has an oblique guide surface for guiding the pull line to move towards the middle channel of the anti-detachment portion, thereby driving the second elastic arm to move in a direction that can widen the middle channel. The side of the anti-detachment portion facing the receiving portion has a stop surface, which forms a right angle or an obtuse angle with the detachment direction of the pull line, and / or, the stop surface forms an acute angle or a right angle with the inner sidewall of the receiving portion.

[0014] In one embodiment, the clamping and separating head further has a guide groove for the pull wire to pass through. The guide groove and the wire-passing groove are arranged opposite to each other in the clamping direction of the clamping and separating head, and the guide groove provides a limiting guide for the pull wire.

[0015] In one embodiment, in the front-rear direction of the clamping separation head, the rearmost end of the guide groove is located behind the rearmost end of the threading groove.

[0016] In one embodiment, the clamping and separating head includes at least two clamping arms, which are arranged opposite to each other. One clamping arm is provided with the wire-passing groove, and the other clamping arm is provided with a guide groove opposite to the wire-passing groove.

[0017] In one embodiment, the shearing device includes a shearing control component and a shearing component. The shearing component includes a scissor seat, an elastic element, and a shearing member. The shearing member is movably mounted on the scissor seat. The shearing control component is connected to the shearing member to drive the shearing member to move relative to the scissor seat and form a shearing structure to cut the pull wire. The elastic element acts on the shearing member to drive the shearing member to move in a direction that can release the shearing structure.

[0018] In one embodiment, the scissor seat is provided with a limiting part, which is used to limit the extreme position of the scissor when the scissor moves in the direction of releasing the scissor structure.

[0019] In one embodiment, the scissor seat has a first cable routing port, and the shearing member has a second cable routing port. The first cable routing port and the second cable routing port are connected to each other for the pull cable to pass through the scissor seat and the shearing member via the first cable routing port and the second cable routing port. The wall of the first cable routing port has a first scissor portion, and the wall of the second cable routing port has a second scissor portion. The first scissor portion can form the shearing structure with the second scissor portion when the shearing member moves relative to the scissor seat.

[0020] In one embodiment, the scissor seat is a cylindrical structure, the shearing member is installed inside the cylindrical structure, the first wiring port is located on the side wall of the cylindrical structure, and the shearing member moves from front to back in the cylindrical structure under the control of the shearing control assembly to form the shearing structure. The elastic member is located at the rear end of the shearing member, and its elastic force drives the shearing member to move forward.

[0021] In one embodiment, the shearing control assembly includes an insertion tube assembly, a shearing control member, an adapter, and a transmission member. The adapter is installed at the front end of the insertion tube assembly and limits the front end of the internal cavity of the insertion tube assembly. The scissor seat is installed at the front end of the adapter and limits the rear end of the internal cavity of the scissor seat. One end of the transmission member is connected to the shearing control member, and the other end extends forward from the internal cavity of the insertion tube assembly, passes through the adapter, and connects to the shearing member to drive the shearing member to move to the rear end. The elastic member is disposed in the space between the adapter and the shearing member.

[0022] In one embodiment, the limiting part is a limiting groove provided on the side wall of the scissor seat, the limiting groove is provided in the front-back direction, the shearing member has a limiting shaft, and the limiting shaft is slidably disposed in the limiting groove.

[0023] In one embodiment, a pull line is further included, which is used to pull at least two clamping and separating heads in the target object body to one place and lock them together.

[0024] In the clamping suture system shown in the above embodiments, each clamping device has a clamping separation head with a thread-locking structure. After the clamping separation head clamps and fixes the corresponding tissue, the operator can manipulate the traction thread and / or the clamping separation head. Thus, after the traction thread pulls at least two clamping separation heads closer together, the traction thread is locked in the thread-locking structure of one of the clamping separation heads. The thread-locking structure of the clamping separation head itself is used to fix the traction thread, thereby keeping these clamping separation heads in a close position through the traction thread. Simultaneously, when each clamping separation head is pulled to one point, the excess traction thread outside the clamping separation head can be cut off by a cutting device. The pre-reserved traction thread and the locking of each clamping separation head keep these clamping separation heads in a close-to-each-other state, promoting wound closure and healing. This structure is simpler, easier to manufacture, and more convenient to operate than existing structures. Attached Figure Description

[0025] Figure 1 This is a schematic diagram illustrating the wound clamping process when two clamping devices are used in combination in one embodiment of this application.

[0026] Figure 2 This is a schematic diagram of the structure of the clamping device through which the pull wire passes in one embodiment of this application;

[0027] Figure 3 This is a schematic diagram of the wire-passing groove and guide groove on the clamping and separating head in one embodiment of this application;

[0028] Figure 4-6 These are schematic diagrams showing the structure of two clamping and separating heads being pulled together in several embodiments of this application;

[0029] Figure 7 This is a schematic diagram of a wire-threading groove being inclinedly arranged on a clamping arm in one embodiment of this application;

[0030] Figure 8 This is a schematic diagram of the pull wire being engaged in the locking area by deformation in one embodiment of this application;

[0031] Figure 9 This is a schematic diagram of a pull wire being confined in the locking area by the anti-detachment part and the receiving part in one embodiment of this application;

[0032] Figure 10 This is an exploded view of a portion of the clamping device structure in one embodiment of this application;

[0033] Figure 11This is a schematic diagram of the clamping device in the open state in one embodiment of this application;

[0034] Figure 12 This is a schematic diagram of the internal structure of the clamping component in an open state according to one embodiment of this application;

[0035] Figure 13 This is a schematic diagram of the card head and release lever after separation in one embodiment of this application;

[0036] Figure 14 This is a schematic diagram of the shearing device in one embodiment of this application;

[0037] Figure 15 This is a cross-sectional view of the shearing device along the front-back direction in one embodiment of this application;

[0038] Figure 16 This is an exploded view of a portion of the structure of the shearing device in one embodiment of this application. Detailed Implementation

[0039] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments. Similar elements in different embodiments are referred to by related similar element reference numerals. In the following embodiments, many details are described to facilitate a better understanding of the present 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 the present application are not shown or described in the specification. This is to avoid obscuring the core parts of the present 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.

[0040] 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.

[0041] 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).

[0042] In closure procedures for specific wounds within a target object (human or animal), such as large wounds (i.e., wound size less than or approximately equal to the opening distance of a single clamping device) or wounds with special shapes (i.e., special shapes that make it difficult for a single clamping device to completely clamp the tissues on both sides of the wound), at least two clamping devices can be used in combination. That is, the same wound is clamped separately using two or more clamping devices, and then these clamping devices are pulled to the closure point using traction sutures (also known as sutures or other names), ultimately forming a closed state of the wound to promote healing.

[0043] Please refer to Figure 1 In one embodiment, taking the combined use of two clamping devices as an example, when closing wound A, firstly, the clamping and separating head 110a of one clamping device is fixed to the traction line 200 (it can be fixed by the locking area described later, or by welding, bonding or other existing fixing methods), and the clamping and separating head 110a clamps and fixes the tissue B on one side of wound A. Then, the clamping and separating head 110a is separated and kept in a clamped state on the tissue. Then, the clamping and separating head 110b of the other clamping device is placed on the traction line 200, and the clamping and separating head 110b is sent to wound A along the traction line 200 to clamp and fix the tissue B on one side of wound A. By pulling the traction wire 200, the first clamping head 110a and the tissue it clamps can be moved towards the second clamping head 110b and the tissue it clamps. After the two clamping heads approach each other, the traction wire 200 is fixed to the second clamping head 110b, ultimately creating a clamping effect on both sides of wound A. Afterward, the clamping head 110b of the second clamping device can be disengaged from other parts. Then, the excess traction wire 200 beyond the second clamping head 110b is cut off by the cutting device 300, ultimately forming a taut and fixed structure with each clamping head 110 and the remaining traction wire 200, keeping wound A closed and promoting healing. Figure 1 In the illustrated embodiment, these clamping and separating heads 110 are used to clamp one side of tissue B on wound A. The opening angle of the clamping and separating heads 110 is relatively small, so some clamping and separating heads 110 with small opening angles and small volumes can be selected. Of course, in other embodiments, each clamping and separating head 110 can also clamp tissue B on opposite sides of wound A from different positions on wound A, thus achieving partial clamping of different areas of wound A. Then, through the traction action of the traction line 200, these clamping and separating heads 110 are pulled together to achieve closure of the entire wound A.

[0044] In the combined use of at least two clamping devices 100, how to pull the clamping and separating heads 110 of these clamping devices 100 together in one place using the pull line 200 is a rather tricky problem. Typically, clamping devices 100 used in combination achieve this through an internal pull structure, but these pull structures are complex, difficult to manufacture, and cumbersome to operate. To address this problem, some embodiments of this application provide a new structure for the clamping device 100 and the pull line 200 to work together.

[0045] Please refer to Figure 1 In some embodiments of this application, a clamping suture system is provided, comprising clamping devices 100, traction sutures 200, and a cutting device 300 that can be used in combination. Of course, in other embodiments, the clamping suture system may not include traction sutures, which can be purchased externally. The clamping devices 100 can be used in combination in two or more units to clamp specific wounds A. The traction sutures 200 are used to pull the clamping and separating heads of at least two clamping devices 100 within the target body to one location and lock the clamping and separating heads. The cutting device 300 is used to cut excess traction sutures 200 within the target body.

[0046] Please refer to Figure 2 In some embodiments, the clamping device 100 includes a clamping separation head 110 and a control component 120 for an operator to control the clamping device 100. Figure 2 The clamping and separating head 110 and the control component 120 are merely examples. The clamping and separating head 110 is typically a combined structure that can open and close under the control of the control component 120, thereby clamping tissue on one side or opposite sides of wound A, and can self-lock to maintain the clamped state after clamping the tissue and separating from the control component 120. The control component 120 is detachably connected to the clamping and separating head 110 to control the clamping and separating head 110 to clamp the tissue, such as controlling the rotation, opening, and closing of the clamping and separating head 110. The control component 120 may include a control handle for operator operation and a transmission component, such as a wire rope, that detachably connects the control handle to the clamping and separating head 110. After the clamping and separating head 110 clamps the corresponding tissue, it can be separated from the control component 120 under the control of the control component 120. After separation, the clamping and separating head 110 can self-lock to maintain the clamped state, such as forming... Figure 1 The state shown is illustrated below. The specific structures of the clamping separation head 110 and the control component 120 will be described exemplarily below. Of course, the clamping separation head 110 and the control component 120 shown in this application are not limited to these examples. The clamping separation head 110 can adopt various clamping forms and structures found in existing clamping devices, while the control component 120 can adopt various control forms and structures found in existing clamping devices.

[0047] To simplify the locking structure of the pull wire 200, in some embodiments, the clamping and separating head 110 has a wire locking structure that allows the operator to lock the pull wire 200 to the wire locking structure after the clamping and separating head 110 has clamped and fixed the corresponding tissue. Besides the first clamping and separating head (e.g., Figure 1 110a) can be fixed to the pull wire 200 before insertion into the target object (this fixing can be achieved through the wire locking structure thereon, or through other means, such as welding, snap-fitting of other structures, etc.), other clamping and separating heads (such as Figure 1 110b) Before the tissue clamping and fixation are completed and the tissues are pulled closer together, the traction wire 200 is not locked to the traction wire 200. After the clamping and separating head 110 clamps and fixes the corresponding tissue, the operator can manipulate the traction wire 200 and / or the clamping and separating head 110 (e.g., manipulating the traction wire 200 to move towards the wire locking structure of the clamping and separating head 110, and / or manipulating the wire locking structure of the clamping and separating head 110 to move towards the traction wire 200), thereby locking the traction wire 200 to a certain clamping and separating head (usually the last clamping and separating head, such as...) after the traction wire 200 pulls at least two clamping and separating heads 110 closer together. Figure 1 In the suture locking structure of 110b), the traction suture 200 is fixed by the suture locking structure of the clamping and separating head 110 itself. This, in turn, keeps the clamping and separating heads 110 close together in a near-close position, promoting wound closure and healing. This structure eliminates the need for additional fixation devices; the traction suture 200 and the clamping and separating head 110 can be locked and fixed solely through the structure of the clamping and separating head 110 itself and the operator's control. Compared to existing structures, this is simpler, easier to manufacture, and more convenient to operate.

[0048] This line locking structure is a structure capable of locking and fixing the pull line 200. It can employ at least one of, but is not limited to, a snap-fit ​​structure, a winding structure, a hook structure, and a limit structure for the pull line to achieve locking and fixing of the pull line 200. Specific examples of this line locking structure will be given later, but the line locking structure is not limited to the following examples.

[0049] Please refer to Figure 3-6In some embodiments, the wire locking structure of the clamping separation head 110 includes a threading groove 111 through which the pull wire 200 passes. The pull wire 200 is pulled and controlled by the operator, and can pass through the clamping separation head 110 through the threading groove 111. The space inside the threading groove 111 is at least divided into an active area 1111 for the pull wire 200 to move and a locking area 1112 for locking the pull wire 200. The active area 1111 allows the pull wire 200 to move within it, allowing the pull wire 200 to pass freely through the clamping separation head 110, ensuring that when the operator pulls the pull wire 200, the pull wire 200 will not easily get stuck in the threading groove 111, thus affecting the control of the pull wire 200. Furthermore, the movable area 1111 can also restrict the movement of the pull line 200 to a certain extent when it is pulled, preventing the pull line 200 from interfering with other structures of the clamping separation head 110 when it is pulled. This movable area 1111 communicates with the locking area 1112, allowing the pull line 200 to move from the movable area 1111 into the locking area 1112 under the operator's pulling. The locking area 1112 is used to lock the clamping separation head 110 to the pull line 200, so that the clamping separation head 110, locked by the pull line 200, can be pulled to other clamping separation heads by pulling the pull line 200. For example, as... Figure 1 As shown, when two or more clamping heads 110 are threaded onto the traction wire 200, the first clamping head 110a can be pre-fixed to the traction wire 200 (it can be fixed through the locking area 1112 or by other means). Then, by pulling the traction wire 200, the first clamping head 110a can be pulled towards the second clamping head 110b, bringing adjacent clamping heads 110 closer together and arranging them sequentially. Once the adjacent clamping heads 110 are close together, pulling the traction wire 200 again will prevent them from moving further. At this point, the traction wire 200 can move within the thread groove 111 of the second clamping head 110b, entering the locking area 1112 from the movable area 1111 and locking, thereby locking the two adjacent clamping heads 110 and keeping them close to each other, thus keeping the wound A closed and promoting healing.

[0050] The threading groove 111 is arranged transversely (i.e., perpendicular to the axial direction of the clamping and separating head 110) along the separating head 110. This allows the pull wire 200 to pull the clamping and separating head 110 as transversely as possible, so that the pull wire 200 can pull the preceding clamping and separating head (e.g., 110a) to the adjacent subsequent clamping and separating head (e.g., 110b) as transversely as possible, so that all clamping and separating heads 110 are arranged transversely with the same orientation as much as possible. Figure 4-6 As shown.

[0051] In the clamping device 100 shown in the above embodiment, the pull wire 200 can be used to pull and fix each clamping and separating head 110 through a simple wire groove 111. This structure is simpler and easier to manufacture than existing structures. Moreover, the operator can pull each clamping and separating head 110 together by pulling the pull wire 200 and lock the pull wire 200 to the clamping and separating head 110, making the operation more convenient.

[0052] Throughout the entire clamping and separating head 110, which is retained within the target object, the pull wire 200 can pass through and be locked in place by the threading groove 111. This threading groove 111 can be located at any position within the clamping and separating head 110, such as the clamping arm 112 shown later, the sleeve 113 of the clamping and separating head 110, or the moving part 114 or the conversion part 115 inside the clamping and separating head 110. There can be one or more threading grooves 111. When a clamping and separating head 110 has at least two wire-passing slots 111, the pulling direction and path of the pulling wire 200 can be more accurately defined because the pulling wire 200 must pass through at least two wire-passing slots 111 simultaneously. This makes path planning of the pulling wire 200 easier, reduces interference with other structures, and allows all wire-passing slots 111 to be fixed, resulting in a better locking effect between the pulling wire 200 and the clamping and separating head 110. However, the operator needs to operate the locking area 1112 of multiple wire-passing slots 111 to lock the pulling wire 200, making the operation more difficult and cumbersome. Therefore, the number of wire-passing slots 111 can be flexibly selected according to actual locking and control requirements.

[0053] Please refer to Figure 2 and 3For ease of description, this application defines the end of the entire clamping device 100 closest to the operator as rear (B) and the other end as front (F). In some embodiments, the active area 1111 is located in front of the locking area 1112 so that the pull line 200 can be moved from the active area 1111 into the locking area 1112 from front to back under the operator's pull. The operator's control of the pull line 200 is mostly from front to back. In this embodiment, the active area 1111 and the locking area 1112 are arranged front and back, thus consistent with the operator's control of the pull line 200 from front to back. Under normal downward conditions, the operator can pull the preceding clamping separation head 110 towards the adjacent proximal clamping separation head 110b, and the pull line 200 passes through the active area 1111 of the proximal clamping separation head 110. Once the preceding clamping and separating head 110 approaches the adjacent proximal clamping and separating head 110b and can no longer move, pulling the pull line 200 further will allow it to enter the locking zone 1112 from front to back, achieving locking with the proximal clamping and separating head 110b. Of course, this front-to-back arrangement includes both axial arrangement along the clamping and separating head 110 (e.g.,...) Figure 7 As shown), it may also include a setting that is tilted at a certain angle in the front-back direction (such as...). Figure 3 As shown, the tilt angle can be flexibly set according to the pulling direction of the pull wire 200 on the clamping separation head 110. In addition, the wire groove 111 can be set not only along the front and back, but also along the circumference of the separation clamping separation head 110.

[0054] Furthermore, please refer to Figure 3 In some embodiments, the threading groove 111 is an elongated groove arranged along the front-rear direction of the clamping and separating head 110. The movable area 1111 may be located at the front end of the elongated groove, and the locking area 1112 may be located at the rear end of the elongated groove. Of course, the elongated groove refers to the threading groove 111 having a larger overall size in the front-rear direction than its width direction, and its specific shape is not limited, for example, it may be teardrop-shaped, wavy, etc.

[0055] Regarding the setting of the active area 1111 and the locking area 1112, the active area 1111 can be configured in terms of size, shape and structure to allow the pull line 200 to move within it, and the locking area 1112 can also be configured in terms of size, shape and structure to lock the pull line 200 within it.

[0056] Specifically, in some embodiments, please refer to Figure 8 The width of the active area 1111 is greater than the outer diameter of the corresponding pull line 200, so that the pull line 200 can move within the active area 1111, and this movement includes a certain degree of free movement in the length and width directions.

[0057] In some embodiments, please refer to Figure 8The width of the locking area 1112 is smaller than the outer diameter of the corresponding pull line 200. When the operator applies a pulling force exceeding the threshold, the pull line 200 deforms and gets stuck in the locking area 1112, so that the pull line 200 can be locked in the locking area 1112. That is, the pull line 200 is locked by limiting the width dimension, and the pull line 200 will be stuck in the locking area 1112 and cannot be easily removed.

[0058] For details, please refer to Figure 8 The width spacing of the locking zones 1112 is smaller than the diameter of the tension wire 200. When the tension wire 200 is pulled into the locking zones 1112, the two sides of the locking zones 1112 exert an inward squeezing force on it, causing the tension wire 200 to deform (when the tension wire 200 is pulled into the locking zones 1112, the pulled part is compressed and its diameter decreases due to the squeezing force, while the unpulled part remains unchanged). Various tension wires commonly used in the medical device industry can be selected, such as, but not limited to, nylon wire, polypropylene wire, polyester wire, polybutylene ester wire, medical silk thread, polyester braided thread, stainless steel wire, knotless suture (barbed thread), polyglycolic acid (PGA), polyglycolic acid (PGLA), polylactic acid (PLA), etc.

[0059] Please refer to Figure 8 In some embodiments, the active area 1111 and the locking area 1112 are directly or indirectly connected, and the pull line 200 can move from the active area 1111 to the locking area 1112 and be locked. For easier access of the pull line 200 to the locking area 1112, please refer to [reference needed]. Figure 8 In some embodiments, the active area 1111 has a guide channel 1113 that narrows from wide to narrow, and the locking area 1112 is connected to the narrow end of the guide channel 1113. The guide channel 1113 can form a guide structure, so that when the pull line 200 is pulled, the pull line 200 can more easily enter the locking area 1112 along the guide channel 1113.

[0060] In order to prevent the pull wire 200 from retracting from the locking area 1112 to the moving area 1111, in some embodiments, please refer to [reference needed]. Figure 8 At least one sidewall of the guide channel 1113 is a first elastic arm 1114 that can deform along the width direction. The first elastic arm 1114 extends to the entrance of the locking area 1112 and blocks the exit of the locking area 1112 in the reset state to prevent the pull line 200 from returning from the locking area 1112 to the active area 1111.

[0061] Specifically, after wound A is sutured in place, the operator needs to apply a certain tension to the traction suture 200, causing it to exert pressure on the surface of the first elastic arm 1114, thus deforming it and providing space for the traction suture 200 to enter the locking zone 1112. Because the operator applies a tension exceeding a threshold, the traction suture 200 pushes the first elastic arm 1114 to deform, resulting in slight deformation and compression, causing it to become lodged in the locking zone 1112. Since the width of the locking zone 1112 is less than the diameter of the traction suture 200, the traction suture 200 will be stuck within the locking zone 1112 and unable to escape. Meanwhile, the first elastic arm 1114 returns to its original position after the traction suture 200 passes through, no longer maintaining its original pressure. The lower edge of its arm also restricts the traction suture 200 from exiting the locking zone 1112, thereby achieving a double locking function for the traction suture 200. Since the first elastic arm 1114 can deform along the width direction, it will not affect the movement of the pull line 200 in the active area 1111, and can also ensure that the pull line 200 smoothly enters the locking area 1112 from the active area 1111. It can also prevent the pull line 200 from exiting the locking area 1112, thereby improving the locking effect.

[0062] In some embodiments, please refer to Figure 7 The first elastic arm 1114 may be located only on one side of the guide channel 1113. Alternatively, in some embodiments, please refer to... Figure 8 The first elastic arm 1114 can be provided in pairs on both sides of the guide channel 1113. Of course, in other embodiments, the number of the first elastic arms 1114 can be more than two.

[0063] In some embodiments, the threading groove 111 and the first elastic arm 1114 can be integrally formed on the clamping and separating head 110, for example, by being cut (e.g., laser-cut) on the same clamping arm 112 or sleeve 113, thereby reducing manufacturing difficulty and improving structural strength. In other embodiments, the first elastic arm 1114 can also be a separate part and fixed inside or around the threading groove 111.

[0064] Of course, in other embodiments, the locking area 1112 may be provided with some limiting structure, clamping structure, hook structure or other structure that can lock and fix the pull line 200 in addition to being limited by the width dimension.

[0065] For example, please refer to Figure 9 In some embodiments, the locking area 1112 has an anti-detachment portion 1112a and a receiving portion 1112b, the receiving portion 1112b being used to receive the pull wire 200. In some embodiments, the width of the receiving portion 1112b may be smaller than the diameter of the pull wire 200, thereby increasing the locking effect by deforming the pull wire 200, as shown in the aforementioned embodiments. Figure 9In the illustrated embodiment, the traction wire 200 can be selected from traction wires commonly used in the medical device industry, such as, but not limited to, nylon wire, polypropylene wire, polyester wire, polybutylene ester wire, medical thread, polyester braided wire, stainless steel wire, knotless suture (barbed thread), polyglycolic acid (PGA), polyglycolic acid (PGLA), polylactic acid (PLA), etc.

[0066] Furthermore, in some embodiments, such as Figure 9 As shown, when at least one sidewall of the receiving portion 1112b is an elastic arm ( Figure 9 When both sides of the middle accommodating portion 1112b are elastic arms (such as the second elastic arm 1115), the tension wire 200 can also be clamped by the elastic force of the elastic arm. In this case, the width of a part of the accommodating portion 1112b can also be greater than or equal to the wire diameter of the tension wire 200.

[0067] Please continue to refer to this. Figure 9 The anti-detachment part 1112a is located between the receiving part 1112b and the active area 1111. It can both allow the pull line 200 to pass through the anti-detachment part 1112a from the active area 1111 and enter the receiving part 1112b, and prevent the pull line 200 from detaching from the receiving part 1112b when the pull line 200 is located in the receiving part 1112b.

[0068] In some embodiments, the anti-detachment portion 1112a has a central channel and may have a width-adjustable structure. This means that the width of the central channel can increase as the pull line 200 moves from the active area 1111 to the receiving portion 1112b, allowing the pull line 200 to pass through the anti-detachment portion 1112a. This width-adjustable structure can be implemented using an elastic structure or other structures.

[0069] In some embodiments, under normal conditions, the middle area of ​​the anti-detachment part 1112a can also be completely closed, without forming a middle channel, and only opens to form a middle channel when the pull line 200 moves from the active area 1111 to the receiving part 1112b.

[0070] Please refer to Figure 9 In some specific embodiments, in order to form an adjustable width structure, at least one sidewall of the anti-slip portion 1112a is formed with a second elastic arm 1115, for example, by cutting a slit in the sidewall of the anti-slip portion 1112a. Figure 9In this embodiment, the anti-detachment part 1112a has second elastic arms 1115 formed on both side walls, forming a set of mutually cooperating second elastic arms 1115. Of course, in other embodiments, the anti-detachment part 1112a may also have a second elastic arm 1115 formed on only one side wall. The inner wall of the anti-detachment part 1112a may have an oblique guide surface 1112c. When the pull line 200 moves to the guide surface 1112c, it can push the second elastic arm 1115 to move in a direction that can expand the width of the middle channel of the anti-detachment part 1112a. For example, the two second elastic arms 1115 shown in the figure can move to the left and right respectively to open the middle channel for the pull line 200 to pass through the middle channel.

[0071] To prevent the pull line 200 from detaching from the anti-detachment part 1112a into the active area 1111, a stop surface 1112d can be formed on the side of the anti-detachment part 1112a facing the receiving part 1112b to stop the pull line 200. Figure 9 In the illustrated embodiment, the separation direction of the stop surface 1112d from the pull line 200 is ( Figure 9 The angle between the arrow (the opposite direction of the middle arrow is the detachment direction) and the stop surface 1112d is obtuse or right. This angle limits the force exerted by the pull line 200 on the stop surface 1112d when it abuts against it. The force is primarily used to push the anti-detachment part 1112a to close the intermediate channel or maintain its existing size, preventing the anti-detachment part 1112a from opening excessively and causing the pull line 200 to detach. Alternatively, in other embodiments, the angle c between the stop surface 1112d and the inner wall of the accommodating part 1112b can be acute or right. Similarly, this structure ensures that when the pull line 200 abuts against the stop surface 1112d, the force is primarily used to push the anti-detachment part 1112a to close the intermediate channel or maintain its existing size, preventing the anti-detachment part 1112a from opening excessively and causing the pull line 200 to detach.

[0072] In some embodiments, please refer to Figure 9 The second elastic arm 1115 serves to form both the anti-detachment portion 1112a and the receiving portion 1112b; that is, the deformation of the second elastic arm 1115 simultaneously affects the changes in both the anti-detachment portion 1112a and the receiving portion 1112b. In other embodiments, the second elastic arm 1115 may only have the anti-detachment portion 1112a, meaning the second elastic arm 1115 only drives the change in the anti-detachment portion 1112a.

[0073] Furthermore, in Figure 9 In the illustrated embodiment, the anti-slip portion 1112a is a protrusion on the inner wall of the locking area 1112, and the protrusion is provided with the aforementioned guide surface 1112c and stop surface 1112d. Each anti-slip portion 1112a may have one or at least two protrusions. Figure 9 (The two protrusions are arranged opposite each other). The receiving part 1112b has a cavity that can accommodate the pull wire 200.

[0074] For more specific details, please refer to Figure 9 In this embodiment, the locking area 1112 may simultaneously have multiple sets of anti-detachment portions 1112a and accommodating portions 1112b. Each set of anti-detachment portions 1112a and accommodating portions 1112b is sequentially connected, thereby forming accommodating areas and anti-detachment structures for multiple pull lines 200. Thus, the operator can select accommodating portions 1112b and anti-detachment portions 1112a of different depths to lock the pull lines 200 according to the distance required for clamping and fixing the separating head 110. In some embodiments, the dimensions of each set of anti-detachment portions 1112a and accommodating portions 1112b may be the same or different. For example, multiple equal-width grooves (each groove may also be of unequal width) can be directly cut into the inner wall of the locking area. The protruding portion of the groove forms the anti-detachment portion 1112a, and the groove cavity forms the accommodating portion 1112b. The inner wall of the equal-width groove may have an undulating structure, for example... Figure 9 The formation shown can also be a wave-like or other undulating structure.

[0075] Meanwhile, when multiple sets of anti-detachment parts 1112a and receiving parts 1112b are provided, each set of anti-detachment parts 1112a and receiving parts 1112b can be provided in the same set or the same second elastic arm 1115. For example, please refer to [reference needed]. Figure 9 In this embodiment, the second elastic arm 1115 is at least one set, and the two second elastic arms 1115 in each set are arranged opposite to each other, and multiple sets of anti-detachment parts 1112a and accommodating parts 1112b are formed on the two second elastic arms 1115.

[0076] Furthermore, the clamping separation head 110 may only have a wire-passing groove 111. After the pull wire 200 passes through the wire-passing groove 111 from the outside to the inside, it can pass through the original gap of the clamping separation head 110. For example, there are usually gaps between the clamping arms 112 of the clamping separation head 110, so the pull wire 200 can pass through these gaps without having to start an additional wire routing port on the clamping separation head 110.

[0077] In other embodiments, please refer to Figure 3 and 4The clamping and separating head 110 also has a guide groove 116 through which the pull wire 200 passes. The guide groove 116 and the wire-passing groove 111 are arranged opposite to each other in the clamping direction of the clamping and separating head 110, and the guide groove 116 provides a limiting guide for the pull wire 200. The guide groove 116 reserves space for the movement trajectory of the pull wire 200 and limits it to prevent the pull wire 200 from deviating from the movement trajectory when tightened by the operator, which would cause the pull wire 200 to get stuck in the gaps of other parts of the clamping and separating head 110 and cause locking failure. Moreover, when the guide groove 116 and the wire-passing groove 111 are arranged opposite to each other in the clamping direction of the clamping and separating head 110, the extension of the pull wire 200 in the clamping and separating head 110 along the clamping direction is restricted. Therefore, when the clamping and separating head 110 is pulled, each clamping and separating head 110 can be made to abut against each other in the clamping direction, such as Figure 4-6 As shown, the mutually abutting clamping and separating heads 110 can also form a mutual restriction to prevent the clamping and separating heads 110 from reopening.

[0078] Of course, the relative positions of the guide groove 116 and the wire-threading groove 111 can also be set for other purposes, and are not limited to... Figure 3 As shown.

[0079] Furthermore, such as Figure 2 As shown, in some embodiments, in the pulling direction of the pull line 200, the threading groove 111 is closer to the operator than the guide groove 116. This makes it easy for the operator to pull the pull line 200 and make it lock into the locking area 1112, even if the position of the guide groove 116 is higher than or flush with the front end of the locking area 1112 of the threading groove 111.

[0080] Of course, in some embodiments, please refer to Figure 7 In the front-to-back direction of the clamping and separating head 110, the rear end of the guide groove 116 can also be located behind the rear end of the wire threading groove 111. For example... Figure 7 As shown, in the pulling direction of the pull wire 200, when the guide groove 116 is closer to the operator than the threading groove 111, this structure ensures that the pull wire 200 is positioned below the locking area 1112 of the threading groove 111 in the guide groove 116. Therefore, when the pull wire 200 is pulled, it is easier for it to move towards the locking area 1112. Of course, in other embodiments, the rear end of the guide groove 116 may be higher than or flush with the rear end of the threading groove 111.

[0081] The guide groove 116 can take various shapes to restrict the direction of the pull wire 200 together with the threading groove 111. However, in some embodiments, please refer to Figure 5 , 67. The guide groove 116 is an elongated groove arranged along the front-rear direction of the clamping and separating head 110. This elongated groove means that the overall dimension of the guide groove 116 in the front-rear direction is greater than its width dimension. Its specific shape is not limited; for example, it can be, but is not limited to, a waist-shaped hole, an elliptical hole, a rectangular hole, etc. Of course, this front-rear arrangement includes axial arrangement along the clamping and separating head 110 (see reference...). Figure 7 The guide groove 116 shown may also be inclined at a certain angle in the front-to-back direction. In addition, the guide groove 116 may be arranged not only in the front-to-back direction, but also in the circumferential direction of the separation clamping head.

[0082] The following further describes some specific structures of the clamping separation head 110 and the control assembly 120. It is understood that, in addition to the structures shown in this application, the clamping separation head 110 and the control assembly 120 of this application may also employ other existing clamping devices, such as various clamping separation heads and control assemblies.

[0083] Please refer to Figure 2 , 5 In some embodiments, such as 6, the clamping and separating head 110 includes at least two clamping arms 112, which can open and close relative to each other under the control of the control component 120, thereby clamping the tissue. In these embodiments, the threading groove 111 may be provided on the clamping arm 112. In the illustrated embodiments, there are two clamping arms 112, and the threading groove 111 may be provided on one or two of the clamping arms 112. Of course, in other embodiments, there may be three or more clamping arms 112, and at least one of these clamping arms 112 may also be provided with the threading groove 111.

[0084] More specifically, in some embodiments, please refer to Figure 2 , 5 6. Two clamping arms 112 are arranged opposite to each other, and one of the clamping arms 112 is provided with a wire-passing groove 111. In this embodiment where the clamping arms 112 are arranged opposite to each other, the relative direction of the clamping arms 112 is the clamping direction. Therefore, by providing the wire-passing groove 111 on the clamping arm 112, the clamping separation head 110 can be pulled to move and approach in the clamping direction more effectively, thereby reducing the risk of the clamping separation head 110 opening during the pulling process.

[0085] In some embodiments, please continue to refer to Figure 2 , 5 6. When a guide groove 116 is required, the other clamping arm 112 of the two clamping arms 112 is provided with a guide groove 116 opposite to the wire threading groove 111, so as to better limit the extension and pulling of the pull wire 200 in the clamping separation head 110 along the clamping direction.

[0086] In some embodiments, please continue to refer to Figure 2 , 56. The clamping separation head 110 includes at least two clamping arms 112 and a sleeve 113, wherein the clamping arms 112 and the sleeve 113 are integrally formed, or the clamping arms 112 partially extend into the sleeve 113. Based on Figure 2 , 5 In some embodiments of the modified structure shown in Figure 6, the threading groove 111 may also be provided on the side wall of the sleeve 113 instead of on the clamping arm 112.

[0087] Correspondingly, in some embodiments, when a guide groove 116 is required, the side wall of the sleeve 113 opposite to the wire-threading groove 111 is provided with a guide groove 116 opposite to the wire-threading groove 111. Of course, the arrangement direction of the wire-threading groove 111 and the guide groove 116 can be arranged either along the clamping direction of the clamping arm 112 or along the non-clamping direction.

[0088] Of course, in addition to the wire-threading groove 111 and guide groove 116 being provided in the clamping arm 112 and / or sleeve 113 as shown in the above embodiments, the wire-threading groove 111 and guide groove 116 can also be provided in other components or structures in the clamping separation head 110, such as in the moving part 114, the conversion part 115, etc. The complete structure of the clamping separation head 110 and the control assembly 120 is described below by way of example.

[0089] Please refer to Figure 10 and 11 In some embodiments, the clamping arms 112 are interconnected to form a clamping assembly. This connection can be a one-piece structure or the two can be manufactured separately and connected. The clamping arm 112 has a bendable portion 1121, which can bend under the action of the retention portion, so that the clamping arm 112 can open and close relative to the clamping arm 112.

[0090] In some embodiments, please refer to Figure 10 The clamping assembly is a one-piece structure that can be laser-cut. This clamping assembly and sleeve 113 can be integrally formed, or they can be manufactured separately and then fixedly connected.

[0091] Furthermore, the bendable portion 1121 can be made of a material or structure that is more easily bent and deformed than other parts. For example, a slit can be cut into the clamping arm 112 by laser cutting or other cutting processes, and the portion between the slits can form the bendable portion 1121 under the action of external force. The bendable portion 1121 has better bending deformation capability and restoring capability. Of course, in some other embodiments, the bendable portion 1121 can also be manufactured separately and then fixedly connected to other parts of the clamping arm 112.

[0092] Of course, the above embodiments are only one example of the bendable portion 1121. The bendable portion 1121 shown in this application can also adopt various existing forms of bendable deformable structures.

[0093] In order to drive the clamping arm 112 with the bendable portion 1121 to bend, please refer to Figure 10-11 In some embodiments, the clamping and separating head 110 may further include a moving member 114 and a conversion member 115. The moving member 114 is connected to the control component 120 in a manner that allows it to disengage from the control component 120 during rearward movement. One end of the conversion member 115 is rotatably connected to the moving member 114, and the other end is connected to the clamping arm 112, so as to drive the bendable portion 1121 to bend and reset when the moving member 114 moves in the front-back direction.

[0094] Please refer to Figure 10-12 In some embodiments, the moving element 114 may have a mounting shaft, and the conversion element 115 may specifically be a rocker arm, the rear end of which is assembled with the mounting shaft through an elliptical hole 1151 and is capable of circumferential oscillation. The front end of the conversion element 115 may be connected to the clamping arm 112; this connection may be a fixed connection or a movable connection. The clamping assembly may form a cylindrical structure, and the moving element 114 is disposed within the assembly cavity of the cylindrical structure. When the moving element 114 moves in the back-and-forth direction within the clamping assembly, it can drive the conversion element 115 to oscillate around the mounting shaft, thereby controlling the bending and resetting of the clamping arm 112. For example, as Figure 11 As shown, when the moving part 114 moves forward, the switching part 115 can drive the clamping arm 112 to open. Conversely, when the moving part 114 moves backward, it can drive the clamping arm 112 to close, as shown. Figure 2 As shown.

[0095] Please refer to Figure 10 In some embodiments, the moving component 114 may specifically be a sliding block, which can be divided into a first block 1141 and a second block 1142. The first block 1141 and the second block 1142 are interlocked and fixed together, which reduces manufacturing difficulty and facilitates the installation of the conversion component 115 on the moving component 114. The mounting shaft can be located on either the first block 1141 or the second block 1142 and blocked by the other, so that the conversion component 115 located on the mounting shaft will not fall off.

[0096] Furthermore, in order to limit the motion conversion assembly 200 to its extreme forward position, in some embodiments, the clamping assembly is a cylindrical structure, with the motion conversion assembly 200 at least partially located within the cylindrical structure, which has a forward limiting portion. This forward limiting portion is located on the forward path of the motion conversion assembly 200 to limit its extreme forward position.

[0097] Please refer to Figure 10 and 11 In some embodiments, the forward limiting portion is a limiting shaft 117, which is fixedly mounted on the clamping assembly, for example, it can be mounted in the support arm 118 of the clamping assembly, which can be located between the fixed arm 110 and the movable arm 120. The support arm 118 can be fixed to the fixed arm 110 and the movable arm 120, for example, as an integrally formed structure or manufactured separately and fixedly connected. The front end of the moving member 114 may have a limiting groove that mates with the limiting shaft 117. When the moving member 114 moves forward until the limiting groove contacts the limiting shaft 117, the moving member 114 stops moving forward. Of course, these are just some examples of limiting the forward position of the motion conversion assembly 200. In other embodiments, other existing forward limiting structures can also be used.

[0098] certainly, Figure 10-12 This is merely one example of the opening and closing of the clamping arm 112 in the clamping separation head 110. In reality, the opening and closing of the clamping separation head 110 can also be achieved using other existing structures. For example, please refer to... Figure 5 The document describes an opening and closing structure for a clamping arm 112. The clamping arm 112 and the sleeve 113 are separate components. One end of the clamping arm 112 is driven by a conversion element 115 within the sleeve 113 to achieve opening and closing. For another example, please refer to... Figure 6 The invention provides an opening and closing structure for a clamping arm 112, which is a separate component from the sleeve 113. One end of the clamping arm 112 is driven by a conversion element 115 in the sleeve 113 to achieve opening and closing. Furthermore, the clamping closing structure of the clamping arm 112 in the clamping separation head 110 can also refer to the structures of other existing patents, such as the clamping structure provided in patent (title: A hemostatic clip, publication number: CN103989500B), or the clamping structure mentioned in patent (title: Device and method for throughthe scope endoscopic hemostatic clipping, publication number: US7094245B2).

[0099] In addition, this application also provides some examples of the control component 120; please refer to them for further details. Figure 10-12In some embodiments, the clamping and separating head 110 further includes a locking head 119, which is connected to the moving member 114 and moves back and forth together. The control assembly 120 includes a release lever 121, which has a main body 1211, a head 1212, and a neck 1213 connecting the head 1212 and the main body 1211. The locking head 119 has deformable legs 1191. The legs 1191 form a locking cavity 1192 with an opening, the head 1212 is accommodated in the locking cavity 1192, and the neck 1213 passes through the opening, thereby ensuring that under normal conditions, the release lever 121 can drive the locking head 119 and the entire clamping and separating head 110 to move in the back and forth direction. During the rearward movement of the release lever 121, especially when the release lever 121 reaches the position where the clamping head 119 can no longer move backward (as the control component 120 moves backward, the clamping component tightens its grip on the tissue; when the clamped tissue prevents the clamping component from closing further, the clamping head 119 also cannot move backward), please refer to [the relevant documentation / reference]. Figure 13 At this point, the release lever 121 continues to move backward under the operator's control. The head 1212 can push the support leg 1191 to deform outward, causing the release lever 121 to separate from the locking head 119. In this embodiment, the locking head 119 and the release lever 121 can be a single integrally formed part. A small amount of material can be left between the support leg 1191 and the main body 1211 and / or between the cavity wall of the locking cavity 1192 and the head 1212 to form a narrow connecting rib 1214. This connecting rib 1214 not only ensures the connection between the locking head 119 and the release lever 121, but can also be gradually stretched under certain conditions. When the yield limit is reached, the connecting rib 1214 will break, thus achieving the separation of the locking head 119 and the release lever 121. Of course, the detachable connection of the release lever 121 and the locking head 119 can also adopt other structures in the prior art, and is not limited to the one shown in this embodiment.

[0100] After the clamping head 119 and the release lever 121 disengage, in order to keep the clamping assembly in the clamped state, it is undesirable for the clamping head 119 to move forward under the reaction force of the tissue and open the clamping assembly. Therefore, in some embodiments, the clamping assembly has a locking portion, and the outer side of the support leg 1191 has a locking engagement portion. When the head 1212 pushes the support leg 1191 to deform outward, the locking engagement portion and the locking portion form a lock to keep the clamping assembly in the closed state. This locking effect can be achieved before, during, or after the release lever 121 separates from the clamping head 119. More specifically, in Figure 13 In the illustrated embodiment, the locking engagement part is a locking plate 1193, and the locking part is a locking window 1131. Of course, in other embodiments, the locking engagement part and the locking part may also adopt other implementation methods in the prior art, and are not limited to the structure described in this embodiment.

[0101] In order to keep the clamping assembly inside the patient's body, some embodiments also require external disengagement, i.e., disengagement of the control assembly 120 and the sleeve 113. Please refer to... Figure 12 In some embodiments, the control assembly 120 has a release spring 122 and a traction line 123 (such as a steel wire, steel rope, or other existing traction line) for connection to a control handle. The traction line 123 is connected to a release lever 121. The release spring 122 is connected to the traction line 123. The clamping assembly has a window 1132 to which the release spring 122 is hooked to connect the clamping assembly to the control assembly 120. This connection ensures that the control assembly 120 can control the back-and-forth movement of the clamping assembly before release, and also allows the release spring 122 to separate from the window 1132 during the rearward movement of the traction line 123, thereby separating the clamping assembly from the control assembly 120. Specifically, when the clamping assembly clamps tissue, it cannot move rearward with the control assembly 120, thus causing the release spring 122 to disengage from the window 1132 of the clamping assembly. Of course, this is only an example of a clamping component and a control component 120 being detachable. This detachable connection can also be implemented in other ways in the prior art and is not limited to the structure described in this embodiment.

[0102] Furthermore, only the structure related to the control component 120 and the clamping separation head 110 is described here. For other embodiments, please refer to [the relevant documentation]. Figure 12 The control assembly 120 may also include a rotating sleeve 124 and an outer tube 125. The traction cable 123 is inserted inside the outer tube 125. The rotating sleeve 124, the release spring 122, and the clamping separation head 110 are connected as a whole structure. Under the control of the traction cable 123, the whole structure can rotate relative to the outer tube 125 to adjust the clamping direction. The outer tube 125 protects the traction cable 123 and other components inside. After disengagement, the outer tube 125, the rotating sleeve 124, the traction cable 123, and the release rod 121 are moved out of the body of the patient.

[0103] In some embodiments, the control component 120 may also include a control handle located at the rear end of the entire device, which is used by an operator to control the clamping component at the front end.

[0104] Furthermore, this application also provides some examples of shearing devices. Of course, the shearing devices mentioned in this application are not limited to the examples shown in this application, and can also be the shearing devices in existing clamping suture systems.

[0105] Please refer to Figure 14-16In some embodiments, the shearing device 300 includes a shearing control assembly 310 and a shearing assembly 320. The shearing assembly 320 includes a shear seat 321 and a shearing element 322. The shearing assembly 320 is located at the front end of the entire shearing device 300, in the front-rear direction as follows: Figure 14 As indicated by the arrow. The scissor seat 321 is a mounting base, and the shearing component 322 is movably mounted on the scissor seat 321. Its movement can be sliding, rotating, or other methods.

[0106] The shearing control component 310 is used to control the shearing component 320. This control includes, but is not limited to, controlling the shearing action of the shearing component 320 and the rotation of the entire shearing component 320. The specific structure can be implemented based on the shearing control component in the existing clamping suture system.

[0107] Specifically, the shearing control assembly 310 is connected to the shearing member 322 to drive the shearing member 322 to move relative to the scissor seat 321 and form a shearing structure to cut the pull wire 200. The shearing structure can be a structure capable of generating shearing force, for example, but not limited to, the shearing member 322 and the scissor seat 321 being relatively close to each other to apply a shearing force to the pull wire 200 located between them, thereby cutting the pull wire 200.

[0108] In existing clamping suture systems, the shearing device is usually directly controlled by the shearing control component to cut the traction suture and open the shearing structure. This operation requires the shearing control component to simultaneously control the shearing component to move in the direction of forming the shearing structure (such as moving backward) and in the direction of opening and releasing the shearing structure (such as moving forward). Therefore, the structural requirements of the entire shearing control component and the shearing component are more complex, and the operation is more cumbersome.

[0109] To simplify the structure and operation of the shearing device 300, please refer to... Figure 15 and 16 In some embodiments, the shearing assembly 320 further includes an elastic element 323, which acts on the shearing member 322 and can be directly or indirectly connected to the shearing member 322 to drive the shearing member 322 to move in a direction that can release the shearing structure. In this structure, the operator only needs to manipulate the shearing assembly 320 to overcome the elastic element 323 through the shearing control assembly 310 to form a shearing structure. When the force applied by the operator to form the shearing structure disappears, the elastic element 323 can automatically drive the shearing member 322 to return to the state of opening and releasing the shearing structure. The elastic element 323 can be a spring, a sheet spring, a torsion spring, or any other feasible elastic structure.

[0110] like Figure 15As shown, in some embodiments, the pull wire 200 is located in the middle of the shearing structure, and the pull wire 200 can be cut by the closure of the shear member 322 and the scissor seat 321. To ensure that the pull wire 200 is both located in the middle of the shearing structure and can be cut, please refer to... Figure 15 and 16 In some embodiments, the scissor holder 321 has a first cable routing opening 3211, and the shearing member 322 has a second cable routing opening 3221. The first cable routing opening 3211 and the second cable routing opening 3221 communicate with each other to allow the pull wire 200 to pass through the scissor holder 321 and the shearing member 322 via the first cable routing opening 3211 and the second cable routing opening 3221. Correspondingly, both the scissor holder 321 and the shearing member 322 may have cable routing channels for the pull wire 200, and the first cable routing opening 3211 and the second cable routing opening 3221 are respectively connected to the corresponding cable routing channels.

[0111] The first cable routing opening 3211 has a first scissor portion 3212 on its opening wall, and the second cable routing opening 3221 has a second scissor portion 3222 on its opening wall. The first scissor portion 3212 can form a shearing structure with the second scissor portion 3222 when the shearing member 322 moves relative to the scissor seat 321, thereby cutting the pull wire 200. The first scissor portion 3212 is located on one side of the movement trajectory of the second scissor portion 3222, wherein the movement trajectories of the first scissor portion 3212 and the second scissor portion 3222 are as close as possible. When the second scissor portion 3222 moves to the position of the first scissor portion 3212, it can fit into the first scissor portion 3212, thereby forming a sharper shearing structure.

[0112] Please refer to Figure 15 and 16 In some embodiments, both the first scissor portion 3212 and the second scissor portion 3222 are planar, and when no shearing structure is formed, the two planes are parallel to each other. The direction of movement of the second scissor portion 3222 relative to the first scissor portion 3212 is perpendicular to the two planes. When the planes of the first scissor portion 3212 and the second scissor portion 3222 are flush or nearly flush, a shearing structure is formed. Of course, in other embodiments, the first scissor portion 3212 and the second scissor portion 3222 can also complete the shearing in other ways, such as by using a rotation method similar to that of conventional scissors.

[0113] Further, please refer to Figure 14-16In some embodiments, the shear seat 321 is a cylindrical structure, and the shearing member 322 is installed inside the cylindrical structure. This cylindrical structure allows the shearing member 322 to slide relative to the shear seat 321 and also provides protection for the periphery of the shearing member 322, preventing tissue within the cavity from affecting it. The first wiring port 3211 is located on the side wall of the cylindrical structure, and the second wiring port 3221 is located on the side of the shearing member 322. Under the control of the shearing control assembly 310, the shearing member 322 moves from front to back within the cylindrical structure to form a shearing structure. The wiring channel of the shearing member 322 extends from the front end of the shearing member 322 to the second wiring port 3221, so that the pulling wire 200 can enter the wiring channel from the front end of the shearing member 322 and extend from the first wiring port 3211 via the second wiring port 3221. In this structure, the elastic element 323 is located at the rear end of the shearing element 322, and its elastic force drives the shearing element 322 forward to open the shearing structure. Of course, in other embodiments, the shear seat 321 can also be a slide or other form, and is not limited to this cylindrical structure. The shearing element 322 is slidably or rotatably mounted on the shear seat 321.

[0114] To simultaneously achieve both rotation of the shearing assembly 320 and shearing control of the shearing assembly 320, please refer to... Figure 14-16 In some embodiments, the shearing control assembly 310 includes an insertion tube assembly 311, a shearing control member 312, an adapter 313, and a transmission member 314 (such as a wire rope or other transmission member 314). The insertion tube assembly 311 is used to insert into the cavity of a target object. The adapter 313 is mounted at the front end of the insertion tube assembly 311, and the shear seat 321 is mounted at the front end of the adapter 313. The insertion tube assembly 311 may have a single or tubular member inside which the transmission member 314 is inserted, as described in the prior art. One end of the transmission member 314 is connected to the shearing control member 312, and the other end extends forward from the internal cavity of the insertion tube assembly 311 and passes through the adapter 313 to connect with the shearing member 322, thereby driving the shearing member 322 to move rearward. The adapter 313 can connect the insertion tube assembly 311 and the shear seat 321, and can also limit the front end of the internal cavity of the insertion tube assembly 311 to facilitate the installation of other components inside the internal cavity of the insertion tube assembly 311. The adapter 313 can also limit the rear end of the internal cavity of the scissor seat 321. The elastic element 323 is disposed in the space between the adapter 313 and the shearing element 322. That is, by using the original adapter 313, it is not necessary to add an elastic element fixing structure, thus simplifying the overall structure. Of course, in other embodiments, the scissor seat 321 can also be directly connected to the insertion tube assembly 311 without the adapter 313.

[0115] Furthermore, in some embodiments, to limit the distance by which the elastic member 323 pushes the shear member 322, a limiting portion is provided on the shear seat 321. This limiting portion is used to limit the extreme position of the shear member 322 when it moves in the direction of releasing the shearing structure. For example, in Figure 15 In the illustrated embodiment, the elastic member 323 drives the shearing member 322 to move forward, so the limiting part can be used to limit the distance the shearing member 322 moves forward.

[0116] More specifically, in some embodiments, please refer to Figure 14 and 16 The limiting part is a limiting groove 3213 provided on the side wall of the cylindrical structure, and the limiting groove 3213 is arranged in the front-back direction. The shearing member 322 has a limiting shaft 323, which is slidably disposed in the limiting groove 3213 to limit the movement distance of the shearing member 322. In addition, in this structure, the structure of the limiting shaft 323 and the limiting groove 3213 can also prevent the shearing member 322 from rotating circumferentially relative to the shear seat 321, so that the second shear seat 321 moves in a set direction, so as to better form a shearing structure with the first shear seat 321.

[0117] In addition, in some embodiments, please refer to Figure 14 and 15 The shearing control assembly 310 may also include a thumb ring 315, a rotating head 316, and a slide bar 317. The thumb ring 315, rotating head 316, and slide bar 317 are directly or indirectly fixedly connected to the insertion tube assembly 311 as a single unit. By rotating the rotating head 316, the entire unit and the front-end shearing assembly 320 can be rotated to adjust the angle. The shearing control element 312 can be fixed to the transmission element 314 via a snap-fit. Specifically, the shearing control element 312 can be a sliding ring, which is slidably mounted on the slide bar 317. In use, the operator inserts their thumb into the thumb ring 315, and their index and middle fingers can grip the shearing control element 312. By pulling the shearing control element 312 rearward with their index and middle fingers, the operator can move the shearing element 322 rearward to shear the pull wire 200.

[0118] Of course, the shearing control component 310 can also adopt other existing structures besides the structure of this example.

[0119] In addition to closing specific wounds A, the clamping suture system shown in this application can also be applied to closing non-specific wounds A.

[0120] The above-described specific examples are for illustrative purposes only and are not intended to limit the scope of this invention. Those skilled in the art to which this invention pertains can make various simple deductions, modifications, or substitutions based on the concept of this invention.

Claims

1. A clamping suture system, characterized in that, include: At least two clamping devices are provided, each having a clamping and separating head and a clamping control assembly for an operator to operate the clamping device. The clamping and separating head is used to clamp and fix tissue on one or both sides of a wound within a target object. The clamping control assembly is detachably connected to the clamping and separating head. The clamping and separating head has a wire locking structure, which allows the operator to control a traction wire to lock with the wire locking structure after the clamping and separating head has clamped and fixed the corresponding tissue. And a shearing device for cutting excess traction wires within the target object.

2. The clip applier of claim 1, wherein the clip applier is configured to: The wire locking structure includes a threading groove through which the pull wire passes. The space inside the threading groove is divided into an active area for the pull wire to move and a locking area for locking the pull wire. The active area and the locking area are connected so that the pull wire can move from the active area into the locking area under the control of the operator. The threading groove is arranged transversely along the clamping and separating head.

3. The clip applier of claim 2, wherein the clip applier is configured to: The active area is located in front of the locking area so that the pull line can be moved from the active area into the locking area from front to back under the pull of the operator.

4. The clip applier of claim 3, wherein the clip applier is configured to: The width of the active area is greater than the outer diameter of the corresponding pull line, so that the pull line can move within the active area; And / or, the width of the locking zone is smaller than the outer diameter of the corresponding pull line, so that the pull line can be locked within the locking zone.

5. The clip applier of claim 3, wherein the clip applier is configured to: At least one sidewall of the active area has a first elastic arm that can deform along the width direction. The first elastic arm extends to the entrance of the locking area and, in the reset state, blocks the exit of the locking area to prevent the pull line from returning from the locking area to the active area.

6. The clip applier of claim 2, wherein the clip applier is configured to: The locking area has a receiving portion for accommodating the pull line and an anti-detachment portion for preventing the pull line from detaching from the movable area. At least one sidewall of the anti-detachment portion forms a second elastic arm. The anti-detachment portion has an oblique guide surface for guiding the pull line to move towards the middle channel of the anti-detachment portion, thereby driving the second elastic arm to move in a direction that can widen the middle channel. The side of the anti-detachment portion facing the receiving portion has a stop surface, which is perpendicular or obtuse to the detachment direction of the pull line, and / or the stop surface forms an acute or right angle with the inner sidewall of the receiving portion.

7. The clip applier of claim 2, wherein the clip applier is configured to: The clamping and separating head also has a guide groove for the pull wire to pass through. The guide groove and the wire-passing groove are arranged opposite to each other in the clamping direction of the clamping and separating head, and the guide groove provides a limiting guide for the pull wire.

8. The clip applier of claim 7, wherein the clip applier is configured to: The clamping and separating head includes at least two clamping arms, which are arranged opposite to each other. One clamping arm is provided with the wire-passing groove, and the other clamping arm is provided with a guide groove opposite to the wire-passing groove.

9. The clip applier of claim 1, wherein the clip applier is configured to apply the clip to the tissue in a manner that is substantially similar to a manner in which a surgeon would apply the clip to the tissue. The shearing device comprises a shearing operation assembly and a shearing assembly, the shearing assembly comprises a shearing seat, an elastic member and a shearing member, the shearing member is movably installed on the shearing seat, the shearing operation assembly is connected with the shearing member to drive the shearing member to move relative to the shearing seat and form a shearing structure to shear the pulling line; The elastic member acts on the shearing member to drive the shearing member to move in a direction capable of releasing the shearing structure.

10. The clip applier of claim 9, wherein the clip applier is configured to: The shearing seat is provided with a limiting part, which is used to limit the limit position of the shearing member when the shearing member moves in the direction capable of releasing the shearing structure.

11. The clip applier of claim 10, wherein the clip applier is configured to: The shearing seat has a first wire passing port, the shearing member has a second wire passing port, the first wire passing port and the second wire passing port are communicated to pass the pulling line through the shearing seat and the shearing member, the port wall of the first wire passing port has a first shearing part, the port wall of the second wire passing port has a second shearing part, and the first shearing part can form the shearing structure with the second shearing part when the shearing member moves relative to the shearing seat.

12. The clip applier of claim 11, wherein the clip applier is configured to: The shearing seat is a cylindrical structure, the shearing member is installed in the cylindrical structure, the first wire passing port is arranged on the side wall of the cylindrical structure, the shearing member moves forward in the cylindrical structure under the control of the shearing operation assembly to form the shearing structure, and the elastic member is arranged at the rear end of the shearing member and drives the shearing member to move forward by the elastic force.

13. The clip applier of claim 12, wherein the clip applier is configured to: The shearing operation assembly comprises an insertion tube assembly, a shearing operation tool, an adapter and a transmission member, the adapter is installed at the front end of the insertion tube assembly and limits the front end of the internal cavity of the insertion tube assembly, the shearing seat is installed at the front end of the adapter, the adapter limits the rear end of the internal cavity of the shearing seat, one end of the transmission member is connected with the shearing operation tool, the other end extends forward from the internal cavity of the insertion tube assembly and passes through the adapter to be connected with the shearing member to drive the shearing member to move to the rear end, and the elastic member is arranged in the space between the adapter and the shearing member.

14. The clip applier of claim 10, wherein the clip applier is configured to: The limiting part is a limiting groove arranged on the side wall of the shearing seat, the limiting groove is arranged in the front-rear direction, the shearing member has a limiting shaft, and the limiting shaft is slidably arranged in the limiting groove.

15. The clip applier of any one of Claims 1-14, wherein, The shearing device further comprises a pulling line, which is used to pull at least two clamping and separating heads in a target object to one place and lock with the clamping and separating heads.

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