CN118303944A - Clamping assembly and endoscope tissue clamp - Google Patents

Abstract

The invention relates to the field of medical equipment, in particular to a clamping assembly and an endoscope tissue clamp, wherein the clamping assembly comprises a linkage clamp, a clamp seat and a middle plate; the linkage clip at least comprises an outer clamping piece and an inner clamping piece; the linkage clamps are two and are respectively arranged at two sides of the middle plate; the outer clamping piece and the inner clamping piece of the same linkage clamp can synchronously reciprocate relative to the inside of the clamping seat, so that the outer clamping piece and the inner clamping piece are mutually close to or far away from each other, and the linkage clamp is opened and closed; in addition, the device also comprises a separation sheet, wherein a spacer position is arranged between the linkage clip and the middle plate, a buckling structure is arranged on the linkage clip, and the middle plate is provided with a limiting structure matched with the buckling structure of the linkage clip; when the separation sheet is in place, the middle plate and the linkage clip are separated by the separation sheet, and the buckling structure on the linkage clip cannot be limited by the limiting structure of the middle plate; after the separation sheet is pulled away, the buckling structure on the linkage clip can be buckled with the limiting structure of the middle plate and form a locking state when moving to the clamping piece tightening position, so that the linkage clip maintains the clamping state.

Description

Clamping assembly and endoscope tissue clamp

Technical Field

The invention relates to the field of medical instruments, in particular to a clamping assembly and an endoscope tissue clamp.

Background

The endoscope tissue clamp (TTSC) is a common consumable material for the digestive endoscope, and is widely applied to closed operations such as hemorrhage and perforation of digestive tract tissues due to the fact that a clamping component can be separated and fall off, the operation is simple and convenient and the cost is low. Most of the current endoscope tissue clamps adopt a design of simultaneously opening and closing two clamp arms, the grabbing range of the clamps depends on the maximum opening span of the clamp arms, and when the wound surface of the tissue is too large, other methods are generally needed to shrink the wound surface and clamp the tissue by the tissue clamps, so that the operation time is increased, and the operation difficulty is increased. In addition, because the lumen of the alimentary canal is narrow and the two clamp arms are designed to be opened simultaneously, when one clamp arm hooks the tissue, the other clamp arm can be caught by the opposite clamp arm when the other clamp arm is used for hooking the tissue at the other side, and the grabbing of the clamp to the opposite tissue is affected.

CN111481304a discloses a three-arm clamp capable of being grasped at two sides, the main structure of the three-arm clamp is two hinged movable arms and a fixed arm, the movable arms are provided with non-parallel sliding grooves, sliding groove pins are arranged in the sliding grooves, and the sliding groove pins slide back and forth in the sliding grooves to control the opening and closing of the movable clamp arms; after the movable arm clamps the tissues, the elastic sheet at the tail end of the movable arm enters the inner cavity of the clamping seat through the avoidance groove on the clamping seat and is matched with the side wall of the clamping seat so as to lock the position of the movable arm. In the scheme, the magnitude of the friction force between the elastic sheet and the side wall of the clamping seat can directly influence the operation effect, when the friction force between the elastic sheet and the side wall of the clamping seat is too large, the movement of the release piece can be seriously influenced, so that the release piece is not smooth to operate when the movable arm needs to be opened and closed, and meanwhile, serious abrasion or clamping between the elastic sheet of the movable arm and the release piece is easy to occur; when the friction force is too small, the elastic sheet structure cannot be effectively locked with the side wall of the clamping seat, and when the elastic sheet structure is subjected to larger tissue tension, particularly when a traction action exists by an operator, the elastic sheet can slide out of the clamping seat, so that the clamping function of the clamp is lost; in addition, in the actual clinical use process, the tissue clamp may be soaked in human body environments such as blood, mucus and the like, and the actual friction force between the elastic sheet and the side wall of the clamp seat is influenced by various factors, so that the performance of the three-arm clamp is unstable, and the clinical requirements cannot be met stably and effectively.

CN111084647a discloses an endoscope double-arm closing clamp for closing perforation of alimentary canal, which pulls a side clamp head to stretch and retract relative to a tightening pipe and a guide pin arranged at the front part of the tightening pipe through a pulling wire, so that the side clamp head can be opened and closed relative to a fixed clamp head by utilizing the inner wall of the tightening pipe and the acting force of the guide pin on the side clamp head, but the side clamp head can be withdrawn relative to the front end of the fixed clamp head due to the fact that the side clamp head depends on withdrawal of the side clamp head relative to the tightening pipe in the closing process, and tissue clamping cannot be stably and effectively realized in the practical process; in addition, the side binding clip is fixed through the barb through the limiting hole, and in the actual use process, when a large area of tissue is clamped, the barb can not reach the limiting hole, and the effective clamping can not be realized; when the tissue with a smaller area is clamped, excessive acting force of an operator is easy to occur, so that the barbs directly enter the limiting holes, and repeated grabbing and adjusting cannot be performed; therefore, the method is narrow in applicable scene, inconvenient to operate and difficult to stably and effectively meet clinical requirements.

CN110141295A discloses an endoscope duct suture clip, which has two clamping portions and a clamping core, and the two clamping portions are respectively controlled to be opened or closed separately relative to the clamping core to realize a separate clamping function, but the technical scheme can be subdivided into the following steps in clinical use: 1. firstly, hooking tissues near the wound surface of the defect by using a hook at the far end of the clamping part; 2. controlling the clamping part to rotate around the rotating shaft to pull the defect wound surface tissue, and enabling the distance between the clamping part and the clamping core to be reduced until the tissue near the defect wound surface is clamped; 3. opening the other clamping part, and repeating the steps 1 and 2 to clamp the other side of the defect wound surface. Because the steps 1 and 2 can be simplified into three steps of hooking, pulling and clamping wound accessory tissues, the wound tissues only depend on hooking in the hooking, pulling and clamping processes to realize pulling displacement, the process often is difficult to hook the tissues near the defective wound or the tissues near the defective wound fall off from the clamping part in the pulling displacement process, so that repeated clamping situations are caused by unstable clamping, and clinical requirements cannot be stably and effectively met.

In order to solve the problems, the invention provides a stable and effective endoscope tissue clamp which can be grasped independently at two sides, so as to solve the problem of closing a large wound surface and the problem of difficult grasping of tissues in a narrow space.

Disclosure of Invention

In view of the above analysis, the present invention proposes an endoscopic tissue clip to solve the deficiencies of the prior art. The invention is realized mainly by the following technical scheme:

in one exemplary embodiment of the invention, a clamping assembly comprises a linkage clamp, a clamping seat and a middle plate; the linkage clip at least comprises an outer clamping piece and an inner clamping piece; the linkage clamps are two and are respectively arranged at two sides of the middle plate; the outer clamping piece and the inner clamping piece of the same linkage clamp can synchronously reciprocate relative to the inside of the clamping seat, so that the outer clamping piece and the inner clamping piece are mutually close to or far away from each other, and the linkage clamp is opened and closed.

In one exemplary embodiment of the invention, the clamping assembly further comprises a separator sheet disposed between the ganged clip and the intermediate plate; when the separation sheet is positioned between the middle plate and the linkage clip, the separation sheet is in an in-place state, namely, the separation sheet is in place. At this time, the linkage clip is separated from the middle plate by the separation sheet, and the fastening structure on the linkage clip cannot be limited by the limiting structure of the middle plate. When the separation sheet is pulled away, the linkage clip can be locked by the middle plate, for example, when the buckling structure on the linkage clip moves to the clamping piece tightening position, the linkage clip can be buckled with the limiting structure of the middle plate, and at the moment, the linkage clip is in the locking position and limited by the middle plate to form a locking state.

In an exemplary embodiment of the invention, the proximal end of the outer clip is curved outwardly and the distal end of the outer clip is curved inwardly; the outer clamping piece is fixedly connected with the proximal end of the inner clamping piece.

In an exemplary embodiment of the present invention, the fastening structure is disposed on the inner clip, and the fastening structure is any one of a tongue-shaped elastic sheet, a barb, a buckle, and a boss; the limiting structure is any one of a hole, a groove, a step and a boss which can be matched with the buckling structure for limiting.

In an exemplary embodiment of the present invention, the separator is a sheet structure.

In an exemplary embodiment of the invention, the separator sheet is detachably connected to the intermediate plate.

In an exemplary embodiment of the present invention, the detachable connection is any one of welding, gluing, setting a breaking piece or a breaking notch or a combination thereof, and the detachment is correspondingly realized through any one of detachment, degumming, self-breaking and breaking notch or a combination thereof.

In an exemplary embodiment of the present invention, the clip seat is provided with a detent structure to prevent the linkage clip from being separated from the clip seat.

In an exemplary embodiment of the invention, the intermediate plate is fixedly connected to the holder. Further, the middle plate is of a plate-shaped structure with the same thickness or different thicknesses; preferably, the middle plate has a plate-shaped structure with the same thickness, and the middle plate part is inserted and fixed in the clamping seat to divide the inner part of the clamping seat into two channels.

In an exemplary embodiment of the present invention, the middle plate is provided with a spacer mounting limiting hole, and the distal end of the spacer is bent and then inserted into the spacer mounting limiting hole, and the spacer mounting limiting hole facilitates mounting the spacer.

In one exemplary embodiment of the invention, a clip connection tab is provided that is connected to a ganged clip, the ganged clip and the clip connection tab being detachably connected. Optionally, the linkage clip and the clip connecting piece are of an integral structure or a split structure. Preferably, the linkage clip and the clip connecting piece are of an integrated structure provided with a notch easy to break; or alternatively, the linkage clip and the clip connecting piece are of a clamping split structure.

In an exemplary embodiment of the invention, a control steel wire is connected with the clamping piece connecting piece, and the control steel wire can push and pull the clamping piece connecting piece so as to control the outer clamping piece and the inner clamping piece of the linkage clamp to synchronously reciprocate relative to the clamping seat, so that the outer clamping piece and the inner clamping piece are mutually close to or far away from each other, and the linkage clamp is opened and closed.

In an exemplary embodiment of the invention, the clip connecting piece is at least partially disposed through the clip seat.

In one exemplary embodiment of the invention, the control wire may be single-ended to effect movement of a single linked clip along the clip seat.

In an exemplary embodiment of the present invention, the control wire may also be configured to move together along the clip seat by a single linkage clip.

In an exemplary embodiment of the invention, the ganged clip and the clip connecting piece are detachably connected. Optionally, the linkage clip is connected with the clip connecting piece by a deformation piece, when the clip connecting piece is subjected to a large tensile force, the deformation piece is deformed in a molding way, and the linkage clip is separated from the clip connecting piece; alternatively, the linkage clip and the connecting piece may be separated based on an operation, for example, when the driving clip connecting piece rotates by a certain angle relative to the linkage clip, the linkage clip is separated from the clip connecting piece.

In an exemplary embodiment of the present invention, the clip seat is provided with a detent structure to prevent the interlocking clip from being detached from the clip seat. Optionally, the clamping structure is a clamping seat retainer ring.

In an exemplary embodiment of the invention, the separator is connected to a release wire; optionally, the separation sheet is directly connected with the release pull wire, the section of the separation sheet is U-shaped, the separation sheet gap can clamp the middle plate, and a connecting piece for connecting the clamping seat and the butt joint pipe is further arranged on the separation sheet; or alternatively, the separation sheet is connected with the stay wire through a middle piece, and a connecting piece for connecting the clamping seat with the butt joint pipe is arranged on the middle piece.

In an exemplary embodiment of the present invention, the holder and the docking sleeve are connected by a socket, and the holder and the docking sleeve are provided with alignment holes at the connection positions.

In an exemplary embodiment of the present invention, the connecting piece may be a pin or a boss, and the connecting piece is inserted or clamped into the alignment hole, when the force applied on the pull wire is too large, the connecting piece is deformed or broken, the separation sheet is pulled away from the corresponding position between the limiting structure and the buckling structure of the linking clip and the middle plate while the clamping seat and the butt joint pipe are separated, the buckling structure on the linking clip is buckled with the limiting structure of the middle plate, and the clamping state locking of the linking clip is completed.

The invention also provides an endoscope tissue clamp which comprises the clamping assembly.

Compared with the prior art, the invention has at least the following beneficial effects:

the clamping pieces are designed by adopting the linkage clamps, each linkage clamp is designed by adopting the double clamping pieces, and tissues near the defect wound surface can be clamped by the inner clamping piece and the outer clamping piece of the linkage clamp in clinical use, so that the defect that the tissues near the defect wound surface are hooked and pulled again to be clamped and are easy to be separated in the prior art is overcome, and stable and effective clamping is realized; in addition, the linkage clip can be used for singly or jointly completing the clamping, and when the large-area wound surface is handled, the large-scale traction and translation tissue is not easy to unhook, the clamping is stable and the wide application can be realized.

The invention is provided with the separating sheet, when the separating sheet is in place, the middle plate and the linkage clip are separated by the separating sheet, and the buckling structure on the linkage clip cannot be limited by the limiting structure of the middle plate; after the separation sheet is pulled away, the buckling structure on the linkage clip can be buckled with the limiting structure of the middle plate and form a locking state when moving to the clamping piece tightening position, so that the clip clamping state is maintained; the repeated grabbing can be realized in an unlocked state through the arrangement, and the device is flexible and effective; when the clamping is in place, the locking state can be changed, so that the stability of the clamping state can be maintained, and the clamping effect is improved.

Other features and advantages of the invention are not limited thereto, and may be apparent from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the appended claims as well as the appended drawings.

Drawings

The drawings are only for purposes of illustrating particular embodiments and are not to be construed as limiting the invention, like reference numerals being used to refer to like parts throughout the several views.

Fig. 1 is an exploded view of a clamping assembly according to a first embodiment of the present invention.

Fig. 2 is a cross-sectional view of a clamping assembly according to a first embodiment of the present invention.

Fig. 3 is a cross-sectional view showing the structure of a clamp assembly in accordance with a first embodiment of the present invention when the linked clamp is opened.

Fig. 4 is a cross-sectional view showing a structure of a clamp assembly in which a linked clamp is closed according to a first embodiment of the present invention.

Fig. 5 is a schematic diagram of an intermediate member structure of a clamping assembly according to a first embodiment of the present invention.

Fig. 6 is a schematic structural diagram of a clamping assembly according to a second embodiment of the invention.

Fig. 7 is a schematic structural diagram of a clamping assembly according to a third embodiment of the present invention.

FIG. 8 is a schematic view of the structure of an endoscopic tissue clip of the present invention.

FIG. 9 is a schematic view of the use of the endoscopic tissue clip of the present invention.

Reference numerals: 1. the linkage clamp comprises a linkage clamp body 1a, an outer clamping piece, a clamping piece 1b, an inner clamping piece 1c, a fixing pin 1d and a buckling structure; 2. the clamping seat, 2a, the retainer ring, 2b and the clamping seat sleeve connecting pipe; 3. the middle plate, 3a, the separation sheet are provided with limit holes, 3b and limit structures; 4. a separator sheet; 5. a clip connecting piece; 6. controlling the steel wire; 7. a middleware; 8. releasing the pull wire; 9. a butt joint pipe; 10. a spring tube.

Detailed Description

The invention will be described in detail below with respect to certain specific embodiments thereof in order to better understand the invention and thereby to more clearly define the scope of the invention as claimed. It should be noted that the following description is only some specific embodiments of the inventive concept and represents only a part of examples of the present invention, wherein the specific and direct description of the related structures is only for facilitating understanding of the present invention, and the specific features do not naturally and directly limit the implementation scope of the present invention. Conventional selections and substitutions made by those skilled in the art under the guidance of the inventive concept should be considered as being within the scope of the claimed invention.

As used herein, "proximal" generally refers to the side that is closest to the operator during the actual procedure, and "distal" generally refers to the side that is closest to the patient, where the distal and proximal are relative, and do not refer to a particular component.

Example 1

FIGS. 1-5 show a specific structure of a clamping assembly, which comprises a linkage clamp 1, a clamp seat 2, an intermediate plate 3 and a separation sheet 4; the linkage clip 1 consists of an outer clip 1a and an inner clip 1b, wherein the outer clip 1a is of a double-bending arc structure, as shown in fig. 1, the proximal end of the outer clip 1a is of an outer-bending arc shape, and the distal end of the outer clip 1a is of an inner-bending arc shape, so that the proximal end of the linkage clip 1 is easy to penetrate into the clip seat 2, and the outer side of the outer clip 1a can be abutted by the clip seat 2 by pulling the linkage clip 1 to be retracted, so that the outer clip 1a is stressed and deformed and realizes a stable clamping effect with the inner clip 1 b; the proximal ends of the outer clip 1a and the inner clip 1b are fixedly connected by a pin 1 c. The proximal end of the linkage clip 1 is provided with a tenon, and the distal ends of the outer clamping piece 1a and the inner clamping piece 1b are respectively provided with a hook tooth so as to improve tissue grabbing capacity.

The inner clamping piece 1b is further provided with a buckling structure 1d, the near end of the buckling structure 1d is an elastic back-off buckle, when the elastic back-off buckle is buckled with the limiting structure 3b on the middle plate 3, the linkage clamp 1 is clamped and fixed on the middle plate, and the limiting structure 3b is shown as a limiting hole in fig. 4.

The proximal end of the linkage clip 1 is detachably connected with the distal end of the clip connecting piece 5, fig. 1 shows that the linkage clip 1 is connected with the clip connecting piece 5 through a mortise and tenon structure, the proximal end of the clip connecting piece 5 is fixedly connected with the control steel wire 6, and the control steel wire 6 is used for controlling the linkage clip 1 to move relative to the clip seat 2 through pushing and pulling the clip connecting piece 5, so that the opening and closing of the linkage clip 1 are realized. When the clamping piece connecting piece 5 receives a large tensile force, the mortise and tenon structure is subjected to plastic deformation separation or fracture, and the linkage clip 1 is separated from the clamping piece connecting piece 5.

The clamping seat 2 is of a tubular structure, and a retainer ring 2a is arranged at the far end of the clamping seat 2 and used for realizing limit so as to prevent the linkage clamp from being separated from the clamping seat. The proximal end of the holder 2 is a holder nipple 2b for connection with a docking tube 9. The holder 2 is provided with an internal step 2c to limit the detachment of the ganged clip 1 from the proximal opening of the holder 2. Specifically, when the linkage clip 1 and the clip connecting piece 5 are assembled, the clip is arranged in the clip seat 2, and the retainer ring 2a on the clip seat 2 has a limiting effect on the pin 1c on the linkage clip 1, so that the linkage clip 1 is prevented from being separated from the far end of the clip seat 2; the sleeve pipe 2b is sleeved with the butt joint pipe 9, the sleeve pipe 2b and the butt joint pipe 9 are respectively provided with an alignment hole so as to be convenient for positioning and sleeving, and two side bulges or gripping teeth on the middle piece 7 are embedded in the alignment holes to fixedly connect the sleeve pipe 2b and the butt joint pipe 9.

The proximal end part of the middle plate 3 is inserted into the clamping seat 2 to divide the interior of the clamping seat 2 into two channels so as to respectively penetrate the control steel wires 6 and prevent the control steel wires 6 from winding; a separation sheet 4 is arranged between the linkage clip 1 and the middle plate 3, when the separation sheet 4 is positioned between the middle plate 3 and the linkage clip 1, the separation sheet 4 is in a position state, at the moment, the separation sheet 4 separates the buckling structure 1d from the limiting structure 3b, and the buckling structure 1d on the linkage clip 1 cannot be limited by the limiting structure 3d of the middle plate 3; after the separation sheet 4 is pulled away from the corresponding position of the limiting structure 3b and the buckling structure 1d, the buckling structure 3d on the linkage clip 1 can be buckled with the limiting structure 3b of the middle plate 3 and form a locking state when moving to the tightening position of the linkage clip 1, so that the linkage clip maintains the clamping state.

The proximal end of the separation sheet 4 is connected with the distal end of the intermediate piece 7, and when the linkage clip 1 is driven to move relative to the intermediate plate 3 and the separation sheet 4 by the control steel wire 6, the separation sheet 4 and the intermediate plate 3 do not move relatively. Further, the middle plate 3 is provided with a spacing plate mounting and limiting hole 3a, which may also be a groove or tooth structure, and the front end of the corresponding spacing plate 4 may be provided with a protrusion, a hook or a tooth, and is matched with the spacing plate mounting and limiting hole 3a, so as to limit the movement of the middle plate 3 relative to the spacing plate 4 when the linkage clip 1 moves relative to the middle plate 3 and the spacing plate 4; when enough force is applied to pull the release pull wire 8, the protrusions or gripping teeth on two sides of the middle piece 7 are separated from the alignment holes 2b of the clamping seat 2, the separation sheet 4 is driven to be pulled away from the separation sheet installation limit holes 3a, the middle plate 3 is in direct contact with the linkage clamp 1, then the control steel wire 6 is further pulled to enable the buckling structure 3d on the linkage clamp 1 to move to the tightening position of the linkage clamp 1, and the buckling structure 1d on the linkage clamp 1 is buckled with the limit structure 3b of the middle plate 3, so that the linkage clamp 1 maintains a locking state.

When the linkage clip 1 moves proximally along the clamping seat 2 to be tightened to a locking position by pulling the control steel wire 6, the pin 1c on the linkage clip is limited by the step 2c in the clamping seat and cannot move backwards any more, and then the control steel wire 6 is applied with larger pulling force to deform or break the mortise-tenon joint part of the linkage clip 1 and the clamping piece connecting piece 5, so that the linkage clip 1 and the clamping piece connecting piece 5 are separated, and the clamping assembly is separated.

Example two

As shown in fig. 6, a clamping assembly includes a linkage clip 1, a clip seat 2, a middle plate 3, and a separation sheet 4, where the linkage clip 1 has a similar structure as that of the first embodiment, and includes an outer clip 1a and an inner clip 1b, and the rest of the same parts are not repeated. The difference is that the buckling structure 1d on the inner clamping piece 1b is a tongue-shaped back-off extending from the inner clamping piece 1b, and the tail end of the tongue-shaped back-off is provided with a grabbing tooth. The middle plate intermediate position is provided with a limit structure 3b, the limit structure 3b is a step surface, after the separation sheet 4 is pulled away, the linkage clip 1 is pulled, and the grabbing teeth of the tongue-shaped back-off on the linkage clip 1 are clamped with the step surface of the middle plate 3 when moving to the clamping piece tightening position, and at the moment, the linkage clip 1 is positioned at a locking position and limited by the middle plate 3 to form a locking state.

Example III

As shown in fig. 7, a clamping assembly includes a linkage clip 1, a clip seat 2, a middle plate 3, and a separation sheet 4, where the linkage clip 1 has a similar structure as that of the first embodiment, and includes an outer clip 1a and an inner clip 1b, and the rest of the same parts are not repeated. The difference is that the outer clamping piece 1a, the inner clamping piece 1b and the clamping piece connecting piece 5 (not shown in fig. 7, refer to the clamping piece connecting piece 5 of fig. 2) of the linkage clamp 1 are of an integrated structure, the proximal end of the linkage clamp 1 is the clamping piece connecting piece 5, the distal end is the outer clamping piece 1a or the inner clamping piece 1b, and the middle joint is provided with a fracture-prone notch. The buckling structure 1d on the inner clamping piece 1b is a limiting hole, the middle plate 3 is provided with a limiting structure 3b, the limiting structure 3b is a protruding back-off, and after the separation sheet 4 is pulled away, the protruding back-off on the middle plate 3 can buckle the limiting hole on the inner clamping piece 1b, so that the locking of the linkage clamp 1 is realized. And then exerting a strong force to break the joint of the clamping piece connecting piece 5 and the linkage clamp, so that the clamping assembly is separated.

Example IV

As shown in fig. 8, an endoscopic tissue clip includes the above-mentioned clamping assembly for achieving gripping and clamping of tissue, and an operation handle for achieving operation control of the clamping assembly. The operating handle at least comprises an operating ring and a release pull wire 8, wherein the operating ring and the release pull wire 8 can respectively control the opening and closing of the linkage clip 1, and the opening and closing of the linkage clip can be realized through the operating ring linkage control steel wire 6; the separation sheet 4 can be controlled to be in place or withdrawn by releasing the pull wire 8. To further facilitate understanding, fig. 9 shows a clinical use process of the endoscope tissue clamp with the clamping assembly, firstly, the endoscope tissue is clamped to a focus position through an endoscope instrument channel, one side of a focus wound surface is firstly gripped by the one side linkage clamp 1, then the other side of the other side linkage clamp 1 is gripped by the other side linkage clamp 1 by deflecting the front end part of the endoscope, the process can not be gripped in place in one step, after the process is adjusted to be repeatedly gripped until tissues on two sides are gripped in place, the release wire 8 is pulled to draw the middle piece 7 and the separation sheet 4 away, then the control wire 6 is further pulled to lock the position of the linkage clamp 1, and the linkage clamp 1 and the clamping sheet connecting sheet 5 are separated by tensioning the control wire 6 by force, so that the clamping assembly is separated, and the wound surface is clamped.

The above description is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions easily contemplated by those skilled in the art within the scope of the present invention should be covered by the present invention.

Claims (10)

1. A clamping assembly comprises a linkage clamp (1), a clamp seat (2) and a middle plate (3); the linkage clip (1) is characterized by at least comprising an outer clip piece (1 a) and an inner clip piece (1 b); the linkage clamps (1) are two and are respectively arranged at two sides of the middle plate (3); the outer clamping piece (1 a) and the inner clamping piece (1 b) of the same linkage clamp (1) can synchronously reciprocate relative to the inside of the clamping seat (2), so that the outer clamping piece (1 a) and the inner clamping piece (1 b) are enabled to be close to or far away from each other, and the linkage clamp (1) is opened and closed.

2. The clamping assembly according to claim 1, further comprising a separator sheet (4), the separator sheet (4) being arranged between the ganged clip (1) and the intermediate plate (3); when the separation sheet (4) is in place, the linkage clip (1) is separated from the middle plate (3); when the separation sheet (4) is pulled away, the linkage clip can be limited by the middle plate (3) when being in a locking position.

3. The clamping assembly according to claim 2, the outer clip (1 a) being bent outwardly at a proximal end and inwardly at a distal end; the outer clamping piece (1 a) is fixedly connected with the proximal end of the inner clamping piece (1 b).

4. A clamping assembly according to any one of claims 2-3, wherein a buckling structure (1 d) is arranged on the linkage clip (1), and a limiting structure (3 b) matched with the buckling structure (1 d) is arranged at a corresponding position on the middle plate (3).

5. The clamping assembly according to claim 4, wherein the buckling structure (1 d) is arranged on the inner clamping piece (1 b), and the buckling structure (1 d) is any one of a tongue-shaped elastic piece, a barb, a buckle and a boss; the limiting structure (3 b) is any one of a hole, a groove, a step and a boss which can be matched with the buckling structure (1 d) for limiting.

6. The clamping assembly according to claim 2, the separator sheet (4) being of sheet construction.

7. A clamping assembly according to claim 2, the separator sheet (4) being detachably connected to the intermediate plate (3).

8. The clamping assembly of claim 7, wherein the detachable connection is any one or combination of welding, gluing, fracture piece setting or fracture notch setting, and the detachment is realized by any one or combination of detachment, degumming, self fracture and fracture notch.

9. The clamping assembly according to claim 1, wherein the clamping seat (2) is provided with a clamping structure for preventing the linkage clamp (1) from being separated from the clamping seat (2).

10. An endoscopic tissue clip comprising the clipping assembly of any one of claims 1-9.