CN111202555A

CN111202555A - Endoscopic tunnel suture clip

Info

Publication number: CN111202555A
Application number: CN202010193722.9A
Authority: CN
Inventors: 张强; 金鸿雁; 沈正华; 马小军
Original assignee: Micro Tech Nanjing Co Ltd
Current assignee: Micro Tech Nanjing Co Ltd
Priority date: 2020-03-18
Filing date: 2020-03-18
Publication date: 2020-05-29
Also published as: WO2021184969A1

Abstract

The invention provides an endoscope channel suture clip, and belongs to the technical field of interventional medical equipment. The clamping mechanism comprises a clamping core and two clamping parts which are arranged opposite to the clamping core respectively, a first locking part and a second locking part which can be locked mutually, wherein the two clamping parts can move respectively to be closed with the clamping core, the near end of each clamping part is also connected with a control component, the drive control component moves relative to the clamping core, the clamping parts can be driven to be closed relative to the clamping core, the second locking part and the first locking part are driven to be locked, the closed state of the clamping parts and the clamping core is locked, therefore, acting force can be transmitted to the clamping parts through the operation of the control component, the clamping parts and the clamping core are enabled to be closed or opened, and under the closed state of the clamping parts and the clamping core, the closed state of the clamping parts and the clamping core is locked through the locking of the first locking part and the second locking part.

Description

Endoscopic tunnel suture clip

Technical Field

The invention relates to the technical field of interventional medical equipment, in particular to an endoscope channel suturing clamp.

Background

The description of the background of the invention pertaining to the related art related to the present invention is provided for illustration only and for the purpose of facilitating an understanding of the summary of the invention, and should not be construed as an admission that the inventors are explicitly aware or presumed to be prior art at the time of the invention first set forth.

With the development of minimally invasive endoscopic techniques, some digestive tract diseases, such as early stage tumors of the digestive tract, which previously need surgical laparotomy or laparoscopic treatment, can be treated with minimally invasive endoscopic techniques. Suturing of gastrointestinal mucosal defects, including gastrointestinal bleeding and perforation, is the most common problem during endoscopic minimally invasive surgery. Currently, the predominant defect suturing methods used are endoscopic clips, nylon cords in combination with endoscopic clip purse string sutures and endoscopic suturing devices (OTSCs). The endoscope clip is easy to use and inexpensive, but it is difficult to repair a large defect or a defect at a difficult site. OTSC was invented by foreign experts, is expensive, complex to operate, and requires early training to use.

Disclosure of Invention

The invention provides an endoscope pore canal suture clip which can be used for simply, quickly and effectively clamping and closing large mucosal defects and defects of parts difficult to operate in an operation so as to effectively solve the problem of minimally invasive suture of gastrointestinal mucosal defects.

The embodiment of the invention provides an endoscope pore canal suture clip which comprises a clamping core, two clamping parts, a first locking part and a second locking part, wherein the two clamping parts are respectively arranged opposite to the clamping core, the first locking part and the second locking part can be mutually locked, the two clamping parts can be respectively and movably closed with the clamping core, the near end of each clamping part is also connected with a control component, the control component is driven to move relative to the clamping core, the clamping parts can be driven to be closed relative to the clamping core, and the second locking part and the first locking part are driven to be locked, so that the closed states of the clamping parts and the clamping core are locked.

Optionally, a casing covering the clamping core and the control assembly is further extended from the clamping core, and the clamping portion is rotatably connected to the clamping core so as to be rotatably closed or opened relative to the clamping core under the driving action of the control assembly.

Optionally, the control assembly includes a moving part and a control part that are connected to each other, a first sliding groove is axially arranged on the housing, the first locking part is arranged on the housing, a second sliding groove is arranged on the clamping portion, the moving part respectively passes through the first sliding groove and the second sliding groove, the control part is pulled to enable the moving part to slide in the second sliding groove, the clamping portion is driven to rotate around a rotating shaft on the housing and to be closed with the clamping core, and the moving part slides in the first sliding groove, so that the first locking part and the second locking part are locked with each other.

Optionally, the first locking element is a first hook arranged on the inner wall of the shell and extending into the shell; the second locking piece is a second hook which is arranged on the movable piece and extends towards the shell; the second hook interferes with the housing in a radial movement within the housing.

Optionally, the first locking element is a first hook arranged on the inner wall of the shell and extending into the shell; the second locking piece is a second hook; an avoiding space is arranged on the second clamping hook, the control element penetrates through the avoiding space to be connected with the moving element between the moving element and the shell, and the first clamping hook can be hooked with the second clamping hook.

Optionally, the housing comprises a shell and a spacer fixed in the shell, the spacer divides the inner space of the housing into two channels for controlling the movement of the clamping part respectively; first closure is the boss that sets up respectively on the spacer surface towards two passageways, and the second closure is for setting up buckle or the card that just stretches out towards the spacer on the moving part, and the moving part drives buckle or card motion in order to block with the boss.

Optionally, the second locking piece is a buckle arranged between the spacer and the clamping part, an avoidance space is arranged on the buckle, and the control piece penetrates through the avoidance space and is connected with the moving piece; the boss sets up the near-end at the spacer, and the spacer is formed with the third spout respectively along the shell axial on facing the surface of two passageways, and the moving part moves in the third spout so that the buckle hook is on the boss.

Optionally, the second closure member is a card, and the control member is disposed between the card and the spacer; the card is provided with an avoiding space, the control piece penetrates through the avoiding space to be connected with the moving piece, the boss is arranged at the far end of the spacer, third sliding grooves are formed in the surfaces, facing the two channels, of the spacer along the axial direction of the shell respectively, and the moving piece moves in the third sliding grooves to enable the card to be hooked on the boss.

Optionally, the far end of the card is further provided with an avoiding groove, the clamping part is opened relative to the clamping core, and the rotating shaft penetrates into the avoiding groove.

Optionally, the second locking piece is a buckle arranged between the spacer and the clamping part, an avoidance space is arranged on the buckle, and the control piece penetrates through the avoidance space and is connected with the moving piece; the control piece drives the moving part to move, and the buckle can be hooked on the boss.

Optionally, the second locking piece is connected with the movable piece, and two side faces of the control piece, which are arranged along the movement direction of the control piece, are respectively abutted against the side walls of the avoiding space.

Optionally, the first locking piece is the arch that sets up in first spout both sides along the extending direction symmetry of first spout, and the second locking piece is the first end that the moving part stretched into in the first spout, and the first end of moving part is used for with protruding looks block.

Optionally, the housing is provided with two deformation holes, and the two deformation holes are symmetrically arranged on two sides of the first sliding groove along the length direction of the first sliding groove and are adjacent to the protrusion.

Optionally, a deformation gap is provided on the housing, the deformation gap is communicated with the first sliding groove and is located at one end of the first sliding groove adjacent to the protrusion.

Optionally, the endoscopic tunnel suture clip of the present embodiment further comprises: the handle is symmetrically provided with two guide rails, the two control pieces are respectively connected with the two guide rails and can slide along the guide rails, and the guide rails are provided with limiting parts; the control piece is also provided with a lock catch, and the lock catch can slide on the control piece; the clamping part clamps the target object, and the lock catch abuts against the limiting part; the lock catch slides on the control piece to be separated from the limiting part, and the control piece can control the clamping part to continue moving, so that the clamping part is locked.

Optionally, the second spout includes the arc wall and the direction locking groove of end to end connection, and the axial setting along the casing of direction locking groove, the clamping part presss from both sides tight target object, and when parallel with the axis of casing, the control piece control moving part slides in the direction locking groove to lock first closure and second closure mutually.

The endoscope channel suture clip provided by the embodiment of the invention at least has the following beneficial effects: 1. the endoscope channel suture clip has simple structure, firmness and reliability; and the number of the related parts is less, so that the difficulty of part assembly is reduced, and the processing and manufacturing cost is greatly reduced.

2. The double-side clamping parts of the endoscope channel suture clip are designed, the double-side clamping parts can independently clamp the mucosa tissue, and the large mucosa defect including perforation can be effectively sutured.

3. The second locking element of the endoscopic tunnel suturing clamp is disposed on the movable member, which enables the size of the head end of the suturing clamp to be reduced.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

FIG. 1 is a schematic, fragmentary, pictorial illustration of a first embodiment of an endoscopic port suturing clip of the present invention;

FIG. 2 is an exploded view of a first embodiment of the endoscopic tunnel suture clip of FIG. 1;

FIG. 3a is a schematic cross-sectional view of the housing of FIG. 1;

FIG. 3b is a cross-sectional schematic view of the first embodiment of the endoscopic tunnel suture clip of FIG. 1;

FIG. 4 is an enlarged view of portion A of FIG. 3 b;

FIG. 5 is a schematic view of a portion of the handle of an endoscopic tunnel suturing clip provided in accordance with the present invention;

FIG. 6 is a partial schematic structural view of the handle of FIG. 5;

FIG. 7a is an exploded view of a second embodiment of the endoscopic tunnel suture clip of FIG. 1;

fig. 7b is a partial structural schematic view of the combined relationship of the control member, the second hook and the movable member in fig. 7 a;

fig. 8 is a structural diagram of the second hook in fig. 7 a;

FIG. 9a is a schematic cross-sectional view of a second alternative embodiment of the endoscopic tunnel suture clip of FIG. 1;

FIG. 9B is an enlarged schematic view of portion B of FIG. 9 a;

FIG. 10 is a schematic view of a portion of a second embodiment of an endoscopic tunnel suturing clip in accordance with the present invention;

FIG. 11 is an exploded view of a first embodiment of the endoscopic tunnel suture clip of FIG. 10;

FIG. 12a is an exploded view of the housing of FIG. 11;

FIG. 12b is a schematic view of the combination of the control member, the clip and the clip of FIG. 11;

FIG. 12c is a schematic view of the clasp of FIG. 11;

FIG. 13 is a cross-sectional view of a first embodiment of the endoscopic tunnel suture clip of FIG. 10;

FIG. 14 is an enlarged schematic view of the portion C of FIG. 13;

FIG. 15 is an exploded view of a second embodiment of the endoscopic tunnel suture clip of FIG. 10;

FIG. 16 is a cross-sectional view of a second embodiment of the endoscopic tunnel suture clip of FIG. 10;

FIG. 17a is a schematic view of the combination of the control member, the locking member, the movable member and the clamping member shown in FIG. 15;

FIG. 17b is a schematic view of the structure of the card of FIG. 15;

FIG. 17c is an exploded view of the housing of FIG. 15;

FIG. 18 is an enlarged schematic view of the portion D of FIG. 16;

FIG. 19 is an exploded view of a third embodiment of the endoscopic tunnel suture clip of FIG. 10;

FIG. 20a is an exploded view of the housing of FIG. 19;

FIG. 20b is a schematic view of the clasp of FIG. 19;

FIG. 21a is a schematic cross-sectional view of a third alternative embodiment of the endoscopic tunnel suture clip of FIG. 10;

FIG. 21b is an enlarged schematic view of section E of FIG. 21 a;

FIG. 22 is a schematic view of a portion of a third embodiment of an endoscopic tunnel suturing clip in accordance with the present invention;

FIG. 23 is an exploded view of the tunnel suture clip of the endoscope of FIG. 22;

FIG. 24 is a schematic structural view of the housing of FIG. 22;

FIG. 25 is a schematic structural view of the housing and movable member of FIG. 22 in an assembled state;

FIG. 26 is a schematic view, partially in section, of a fourth embodiment of an endoscopic tunnel suturing clip in accordance with the present invention;

FIG. 27 is an exploded view of the tunnel suture clip of the endoscope of FIG. 26;

FIG. 28 is a schematic structural view of the housing of FIG. 26;

fig. 29 is a schematic structural view of the housing and the movable member of fig. 26.

Icon: 100-a housing; 11-a first runner; 12-a housing; 13-a first spacer; 14-a second spacer; 15-deformation holes; 16-deformation gap; 17-a third runner; 110-a clamping core; 120-a clamping portion; 121-a second chute; 1211-guide locking groove; 1212-an arc-shaped slot; 130-a rotating shaft; 140-a first locking member; 141-a first hook; 142-a boss; 143-bumps; 150-a second locking element; 151-second hook; 152-buckling; 153-card; 1531-avoidance slots; 160-avoidance space; 200-a control component; 211-moving parts; 212-a control member; 213-locking; 300-a handle; 31-a guide rail; 32-a limiting part.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some embodiments of the present invention and not all embodiments. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or the orientations or positional relationships that the products of the present invention are conventionally placed in use, and are only used for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Fig. 1 and 2 are schematic structural views of an endoscopic duct suturing clip according to the present invention, and referring to fig. 1, an embodiment of the present invention provides an endoscopic duct suturing clip, which includes a clamping core 110, two clamping portions 120 respectively disposed opposite to the clamping core 110, and a first locking member 140 and a second locking member 150 (not shown in fig. 1, see the exploded structural view of fig. 2) capable of locking with each other, the two clamping portions 120 are respectively movable to close with the clamping core 110, the proximal end of the clamping portion 120 is further connected with a control assembly 200, the driving control assembly 200 moves relative to the clamping core 110 to open and close the clamping portions 120 relative to the clamping core 110, and the second locking member 150 and the first locking member 140 are locked to lock the clamping portions 120 and the clamping core 110 in a closed state.

First, it can be understood by those skilled in the art that when the endoscopic tunnel suture clip according to the embodiment of the present invention is used in an operation, the holding core 110 and the holding portion 120 are inserted into a human body to perform a holding operation, and the components on the handle side are operated by a doctor. Thus, in contrast, in the endoscopic tunnel suture clip of the present embodiment, for each component, the side near the operation into the human body is referred to as the distal end of the component, and the side near the operation by the surgeon is referred to as the proximal end of the component.

Secondly, the proximal end of the clamping portion 120 is connected to the control assembly 200, which means that the control assembly 200 and the clamping portion 120 have a generalized mutual connection relationship, and the movement of the control assembly 200 can drive the movement of the clamping portion 120 connected thereto, in the embodiment of the present invention, the connection manner between the clamping portion 120 and the control assembly 200 is not particularly limited, and the connection manner between the control assembly 200 and the clamping portion 120, for example, detachable connection, hinge connection, abutting connection, sliding connection, and the like, may be specifically set according to the specific structure of the control assembly 200 and the transmission of the movement relationship between the control assembly 200 and the clamping portion 120.

For example, as shown in fig. 1, the control component 200 (which can be understood as an integral structure including the movable member 211 and the control member 212 in fig. 1) is slidably connected to the clamping portion 120, the clamping portion 120 is rotatably connected to the clamping core 110 through the rotating shaft 130, when the driving control component 200 moves relative to the clamping core 110, the movable member 211 moves in the second sliding slot 121 of the clamping portion 120, and the clamping portion 120 is rotatably connected to the rotating shaft 130, so that the clamping portion 120 can only rotate around the rotating shaft 130 under the driving of the movable member 211, thereby being rotatably closed with the clamping core 110, and the movable member 211 is continuously driven to move relative to the clamping core 110, as shown in fig. 2, the first locking member 140 and the second locking member 150 are mutually locked, thereby locking the closed states of the clamping portion 120 and the clamping core 110, and avoiding that the clamping portion 120 and the clamping core 110 are in a closed state of clamping objects in use, the closed state is opened due to improper operation or interference of external factors, so that the clamped object is lost.

The embodiment of the invention provides an endoscope pore canal suture clip which comprises a clamping core 110 and two clamping parts 120 which are respectively arranged opposite to the clamping core 110, wherein the two clamping parts 120 respectively move and are closed with the clamping core 110 to clamp a target object. The clamping device further comprises a first locking piece 140 and a second locking piece 150 which can be locked with each other, the two clamping parts 120 can be respectively and movably closed with the clamping core 110, the proximal end of the clamping part 120 is further connected with a control component 200, the drive control component 200 moves relative to the clamping core 110 to drive the clamping part 120 to be closed relative to the clamping core 110 and drive the second locking piece 150 to be locked with the first locking piece 140 to lock the closed state of the clamping part 120 and the clamping core 110, therefore, acting force can be transmitted to the clamping part 120 through operation of the control component 200 to enable the clamping part 120 and the clamping core 110 to be closed or opened, and the closed state of the clamping part 120 and the clamping core 110 is locked through locking of the first locking piece 140 and the second locking piece 150 under the closed state of the clamping part 120 and the clamping core 110. The endoscope channel suture clip provided by the embodiment of the invention has the advantages of simple structure, firmness and reliability, fewer parts, high preparation yield and lower processing cost, when the endoscope channel suture clip provided by the embodiment of the invention is applied to a clinical interventional operation, the clamping parts 120 on two sides can be operated to respectively work relative to the clamping core 110 on the basis of simple structure, firmness and reliability, the clamping of mucosa tissues in a patient body can be independently carried out, and the large mucosa defects including perforation can be effectively sutured.

When the endoscope channel suture clip provided by the embodiment of the invention is applied to clinical interventional operation treatment, the endoscope channel suture clip needs to be inserted into a patient body to clamp a target object, in order to achieve a minimally invasive effect, usually, a natural cavity of a human body or an operation channel which is necessary for enabling the endoscope channel suture clip to be inserted into the body is only opened on the human body of the patient, and the operation of a doctor needs to be carried out outside the patient body, so that a certain space distance is required between an operation end and a working end of a surgical instrument, and good force transmission capacity is required.

For the convenience of the endoscope aperture suture clip of the embodiment of the present invention, as shown in fig. 1, the control assembly 200 includes a control member 212 extending from the proximal end of the movable member 211, and a housing 100 extending from the clamping core 110 and disposed outside the clamping core 110 and the movable member 211, wherein the clamping portion 120 is rotatably connected to the rotating shaft 130, so that the clamping portion 120 can be rotated to close or open relative to the clamping core 110 under the driving action of the control assembly 200.

It should be noted that, when the control element 212 is further extended from the proximal end of the movable element 211 to form the control element 200, as shown in fig. 1 and fig. 2, the structure where the movable element 211 and the control element 212 are connected to each other may be understood as the control element 200, and the control operation of the control element 200 is that the movable element 211 and the control element 212 are linked to each other to operate and control the clamping portion 120.

The arrangement of the housing 100 can make the endoscope tunnel suture clip compact in structure and smooth in outer surface, which is beneficial to surgical operation, in the housing 100, the control element 212 is extended from the proximal end of the movable element 211 to form a structure of the control assembly 200, the structure of the control assembly 200 is convenient for a doctor to control the movable element 211 through the control element 212, as shown in fig. 1, the housing 100 is provided with a rotating shaft 130, the clamping portion 120 is rotatably connected to the rotating shaft 130, an opening for avoiding when the clamping portion 120 is rotatably opened is reserved on the housing 100, and the flexibility of operation is ensured. In addition, the rotation between the clamping portion 120 and the clamping core 110 is opened or closed by the rotation shaft 130, so that the operation is relatively convenient, the opening and closing range of the clamping portion 120 relative to the clamping core 110 is increased as much as possible in a limited space, and the accuracy of the operation can be relatively well guaranteed.

In the embodiment of the present invention, the shape of the housing 100 extending from the clamping core 110 is not specifically limited, the housing 100 may be a complete cylindrical structure that is sleeved on the periphery of the internal integral structure such as the clamping core 110 and the movable element 211 as shown in fig. 1, or may be an other shape structure that extends from the upper portion of the clamping core 110, and the housing 100 extending from the clamping core 110 may be an extension structure that is formed by being fixed, detachably connected, or integrally formed with the clamping core 110. This kind of structure can provide stable and accurate relative rotation relation between centre gripping core 110 and clamping part 120, moreover, when adopting as shown in fig. 1, the cover locates the clamping part 120 and the moving part 211 outside and to the casing 100 that clamping part 120's activity has corresponding dodge relation, the setting of casing 100 can play the limiting displacement to clamping part 120, avoids clamping part 120 turned angle too big or clamping part 120 to take place to rock in the direction except that the direction of rotation.

As shown in fig. 3a, a first sliding groove 11 is axially disposed on the housing 100, the first locking member 140 is disposed on the housing 100, as shown in fig. 2, a second sliding groove 121 is disposed on the clamping portion 120, the movable member 211 respectively passes through the first sliding groove 11 and the second sliding groove 121, the control member 212 is pulled to slide the movable member 211 in the second sliding groove 121, the clamping portion 120 is driven to rotate around the rotating shaft 130 to close the clamping core 110, and the movable member 211 slides in the first sliding groove 11, so that the first locking member 140 and the second locking member 150 are locked with each other. Accordingly, the control member 212 is pushed to make the movable member 211 reversely slide in the second sliding slot 121, and the mutual locking state of the first locking member 140 and the second locking member 150 is firstly released, and then the clamping portion 120 is further driven to reversely rotate around the rotating shaft 130, so that the clamping portion 120 can be opened relative to the clamping core 110.

By the aid of the mode, the structural volume of the endoscope tunnel suture clip can be greatly saved under the condition that the movement accuracy of the control piece 212 and the moving piece 211 is guaranteed, and the endoscope tunnel suture clip corresponding to different operation requirements can be conveniently and adaptively adjusted by adjusting the arrangement positions of the first sliding groove 11 and the second sliding groove 121 and the structural shapes of the sliding grooves, so that the endoscope tunnel suture clip is higher in adaptability.

According to the endoscope channel suture clip provided by the invention, after the clamping part 120 clamps the target object (defect wound surface), the operator continues to pull the control element 212 backwards, so that the first locking element 140 and the second locking element 150 are locked, and the large-size alimentary canal mucosa defect wound surface can be closed.

Embodiments according to the inventive concept are specifically described below with reference to the accompanying drawings.

Example 1

As shown in fig. 1 to 4, an endoscopic tunnel suture clip according to an embodiment of the present invention includes: the clamping device comprises a shell 100, a clamping core 110, two clamping parts 120, two first locking pieces 140, two second locking pieces 150 and two groups of control components 200, wherein the control components 200 comprise control pieces 212 and movable pieces 211 which are connected with each other.

As shown in fig. 3a, the first locking element 140 is a first hook 141 symmetrically disposed on the inner wall of the casing 100 and extending into the casing 100, and the casing 100 is symmetrically provided with a first sliding slot 11, and the first sliding slot 11 is disposed along the axial direction of the casing 100. The second locking element 150 is a second hook 151 disposed on the movable element 211 and extending toward the housing 100, and the clamping core 110 is fixedly connected to the housing 100.

As shown in fig. 2, two clamping portions 120 are mounted on the housing 100 through a rotating shaft 130 and can rotate relative to the housing 100, and a second sliding slot 121 is disposed on the clamping portion 120.

As shown in fig. 3b and fig. 4, the second hook 151 is disposed on the movable element 211 and extends toward the housing 100, the second hook 151 interferes with the housing 100 in the radial direction of the housing 100, the interference can prevent the second hook 151 from swinging during the moving process, and the first hook 141 can be hooked with the second hook 151.

As shown in fig. 3b, two sets of control members 212 and two moving members 211 connected to each other are respectively connected to the two clamping portions 120 through the moving members 211, the moving members 211 can slide in the second sliding slots 121, and the two control members 212 respectively drive the moving members 211 to drive the two clamping portions 120 to move, so that the clamping portions 120 are respectively opened or closed relative to the clamping core 110 to clamp the target object.

As shown in fig. 3b, a first end of the movable member 211 is disposed in the first sliding slot 11 and can slide in the first sliding slot 11, and a second end of the movable member 211 is disposed in the second sliding slot 121 and can slide in the second sliding slot 121.

As shown in fig. 3b, one end of the control member 212 is connected to the movable member 211, and the other end extends out of the housing 100; after the holding portion 120 holds the object and is parallel to the axis of the housing 100, the control element 212 controls the holding portion 120 to move continuously, so as to lock the first hook 141 and the second hook 151.

According to the endoscope pore canal suture clip provided by the embodiment of the invention, after the clamping part 120 clamps the target object (defect wound surface), the operator continues to pull the control element 212 backwards, so that the clamping part 120 and the clamping core 110 are in a closed locking state, and the first clamping hook 141 and the second clamping hook 151 are locked, and the target object can be stably and firmly clamped and moved. The second hook 151 has a simple structure, and on one hand, the production and the manufacture are easy, so that the production and the manufacture cost of the product are reduced; on the other hand, the assembly is easy, and the movable part/shaft is directly connected in series, so that the production efficiency of the product is improved, and the production and manufacturing cost of the product is reduced.

As shown in fig. 2, in an embodiment of the present invention, the first hooks 141 may be formed by stamping the side wall of the housing 100, or the first hooks 141 and the housing 100 are manufactured by an integral casting process, so as to ensure the connection strength between the first hooks 141 and the housing 100, improve the production efficiency of the product, and further reduce the production cost of the product.

As shown in fig. 1 and fig. 2, in an embodiment of the present invention, the second sliding slot 121 includes an arc-shaped slot 1212 and a guiding locking slot 1211, the guiding locking slot 1211 is disposed along an axial direction of the housing 100, and when the holding portion 120 holds the object and is parallel or approximately parallel to the axial direction of the housing 100 (in general, the object to be held in the patient during the operation is small in size, soft and elastic, and when the holding portion 120 and the holding core 110 are closed to hold and clamp the object, the holding portion 120 and the axial direction of the housing 100 are parallel or parallel to each other, which will be described in the following, and will not be described in detail), the control element 212 controls the second end of the movable element 211 to slide in the guiding locking slot 1211 to lock the first hook 1211 and the second hook 151.

In this embodiment, the control member 212 controls the movable member 211 to slide in the arc-shaped slot 1212, so as to control the two clamping portions 120 to open or close relative to the clamping core 110, so as to clamp the target object; when the operator confirms that the clamped defective wound surface is not correct, the control element 212 controls the movable element 211 to slide into the guide locking groove 1211 and slide in the guide locking groove 1211, so that the first hook 141 and the second hook 151 are locked with each other, and the clamping portion 120 and the clamping core 110 are in a closed and locked state.

In one embodiment of the present invention, as shown in fig. 5 and 6, the endoscopic tunnel suture clip further comprises: a handle 300. The handle 300 is symmetrically provided with two guide rails 31, the two control members 212 are respectively connected with the two guide rails 31 and can slide along the guide rails 31, and the guide rails 31 are provided with limit parts 32. The other end of the control member 212 is provided with a latch 213, and the latch 213 can slide on the control member 212.

When the clamping portion 120 clamps the target object and rotates to be parallel to the axis of the housing 100, the lock 213 abuts against the limiting portion 32; the lock catch 213 slides on the control member 212, the lock catch 213 is separated from the position-limiting portion 32, and the control member 212 can control the holding portion 120 to continue moving.

The arrangement of the guide locking groove 1211 of the clamping part 120 of the endoscopic tunnel suture clip, the lock catch 213 at one end of the control member 212 and the limiting part 32 on the handle 300 prevents the clamping part 120 from being locked in advance and the suture clip from being released when the pulling force is too large.

In this embodiment, the arrangement of the lock 213 and the limiting portion 32 plays a role of prompting, when the lock 213 abuts against the limiting portion 32, the operator is prompted that the first hook 141 and the second hook 151 will be locked if the operator continues to pull the control element 212; when the operator confirms that the clamped defective wound surface is correct, the lock catch 213 can be controlled to slide on the control element 212, so that the lock catch 213 is separated from the limiting part 32, the control element 212 is continuously pulled, and the first hook 141 and the second hook 151 are locked, so that the clamping part 120 and the clamping core 110 are in a closed and locked state.

Example 2

As shown in fig. 7a to 9b, an endoscopic tunnel suture clip according to an embodiment of the present invention is different from embodiment 1 in that: as shown in fig. 8, the second hook 151 is provided with an escape space 160, and as shown in fig. 7a, 9a and 9b, the control member 212 passes through the escape space 160 to be connected to the movable member 211, and the first hook 141 can be hooked with the second hook 151. The control member 212 is disposed between the second hook 151 and the first hook 141. The avoidance space 160 may be in the form of a hole, slot, etc.

When the holding portion 120 holds the target object (defect wound surface), the operator continues to pull the control member 212 backward, so that the first hook 141 and the second hook 151 are locked, and the holding portion 120 and the holding core 110 are in a closed and locked state. The structure of the hook is simple, on one hand, the production and the manufacture are easy, thereby reducing the production and the manufacture cost of the product; on the other hand, the assembly is easy, thereby improving the production efficiency of the product and further reducing the production and manufacturing cost of the product. In addition, the avoiding space 160 is arranged, so that the control element 212 passes through the avoiding space 160 and is positioned between the first hook 141 and the second hook 151, thereby increasing the distance between the second hook 151 and the first hook 141, even if the first hook 141 and the second hook 151 have larger installation spaces, the second hook 151 and the first hook 141 can be made larger, further increasing the overall strength of the second hook 151 and the first hook 141, reducing the probability of damage, and increasing the market competitiveness of the product.

The design of the avoiding space 160 on the second locking part 150 of the endoscope channel suture clip and the matching arrangement of the avoiding space and the control part 212 can well fix the second locking part 150 and increase the stability of the suture. Meanwhile, due to the fixing function, one end of the second locking piece 150 is directly connected with the movable piece 211, welding and fixing are not needed, and the difficulty of assembling parts is reduced.

As shown in fig. 7b, in an embodiment of the present invention, the second hook 151 is connected to the movable member 211, and two side surfaces of the control member 212 disposed along the moving direction of the control member 212 respectively abut against the side walls of the avoiding space 160.

In this embodiment, as shown in fig. 7b, one end of the second hook 151 is connected by the movable element 211 to form a first fixed point, two side surfaces of the other end of the second hook 151 respectively abut against the side wall of the avoidance space 160 to form a second fixed point and a third fixed point, and the second hook 151 forms a stable fixing manner of a triangle through the first fixed point, the second fixed point and the third fixed point, which is simple in structure, and on the one hand, the production and manufacturing are easy, thereby reducing the production and manufacturing cost of the product; on the other hand, the assembly is easy, thereby improving the production efficiency of the product and further reducing the production and manufacturing cost of the product.

Example 3

The difference between the endoscope pore canal suture clip related to the embodiment of the invention and the embodiments 1 and 2 is that: as shown in fig. 10 to 21b, the housing 100 includes a housing 12 and a spacer fixed in the housing 12, and in this embodiment, the spacer is a first spacer 13 shown in fig. 10, and the first spacer 13 divides an inner space of the housing 100 into two passages for controlling movement of the clamping portion 120, respectively. The first locking element 140 is a boss 142 respectively disposed on the surface of the first spacer 13 facing the two channels, the second locking element 150 is a buckle 152 or a card 153 disposed on the moving element 211 and extending toward the first spacer 13, and the control element 212 drives the buckle 152 or the card 153 to move to engage with the boss 142.

The inner space of the housing 100 is divided into two channels for controlling the movement of the clamping portion 120 by the first spacer 13, so that the first spacer 13 is provided with the bosses 142 on the surfaces facing the two channels to serve as the first locking members 140 engaged with the two second locking members 150, and the two second locking members 150 are provided with the fasteners 152 or the locking pieces 153 arranged on the movable member 211 and extending toward the first spacer 13.

The scheme in this embodiment may specifically include at least three specific embodiments of the mutual cooperation operation, and the following explanation is made one by one.

Example 4

As shown in fig. 10 to 14, an endoscopic tunnel suture clip according to an embodiment of the present invention includes: the clamping device comprises a shell 100, a clamping core 110, two clamping parts 120, two first locking pieces 140, two second locking pieces 150, two groups of control pieces 212 and a movable piece 211 (a control component 200) which are connected with each other.

In the present embodiment, the spacer is the first spacer 13, and as shown in fig. 12a, the housing 100 includes: a housing 12 and a first spacer 13. The first partition 13 is fixed in the housing 12, third slide grooves 17 are formed on surfaces of the first partition 13 facing the two passages in the axial direction of the housing 12, the first partition 13 divides the inner space of the housing 100 into two symmetrical passages, and the movable member 211 is located in the third slide grooves 17. The first septum 13 is provided with a boss 142, and the boss 142 is provided at the proximal end of the first septum 13.

As shown in fig. 12b and 12c, the latch 152 is disposed between the first spacer 13 and the clamping portion 120, as shown in fig. 12c, an avoiding space 160 is disposed on the latch 152, the control member 212 passes through the avoiding space 160 to be connected to the movable member 211, and the latch 152 can be hooked on the boss 142. The avoidance space 160 may be in the form of a hole, slot, etc. Control member 212 is disposed between boss 142 and catch 152. As shown in fig. 13, the two clamping portions 120 are rotatably connected to the housing 100 via a rotating shaft 130 and can rotate relative to the housing 100, and the clamping portions 120 are provided with second sliding grooves 121.

The two sets of control assemblies 200 are respectively connected with the two clamping portions 120 through the two moving members 211 and can slide in the second sliding grooves 121, and the two sets of control assemblies 200 respectively drive the two clamping portions 120 to move, so that the clamping portions 120 are opened or closed relative to the clamping core 110 to clamp the target object.

The first end of the movable member 211 is disposed in the first sliding slot 11 and can slide in the first sliding slot 11, and the second end of the movable member 211 is disposed in the second sliding slot 121 and can slide in the second sliding slot 121. One end of the control member 212 is connected to the movable member 211, and the other end extends out of the housing 100; after the clamping portion 120 clamps the object and is parallel or approximately parallel to the axis of the housing 100, the control member 212 controls the clamping portion 120 to continue moving, so as to lock the boss 142 with the buckle 152.

According to the endoscope channel suture clip provided by the invention, after the clamping part 120 clamps the target object (defect wound surface), the operator continues to pull the control element 212 backwards, so that the buckle 152 is hooked on the boss 142 and locked with the boss 142, and the clamping part 120 and the clamping core 110 are in a closed locking state. The buckle 152 has a simple structure, and on one hand, the production and the manufacture are easy, so that the production and the manufacture cost of the product are reduced; on the other hand, the assembly is easy, thereby improving the production efficiency of the product and further reducing the production and manufacturing cost of the product. In addition, the setting of the avoiding space 160 enables the control element 212 to be located between the first hook 141 and the second hook 151, thereby increasing the distance between the boss 142 and the buckle 152, even if the boss 142 and the buckle 152 have larger installation space, the boss 142 and the buckle 152 can be made larger, further increasing the overall strength of the boss 142 and the buckle 152, reducing the probability of damage, and increasing the market competitiveness of the product.

As shown in fig. 11, in one embodiment of the present invention, the protrusion 143 (not labeled in fig. 11) and the first separator 13 may be formed by a one-piece casting process, thereby securing the coupling strength between the protrusion 143 and the first separator 13.

After the clamping portion 120 clamps the target object and is parallel or approximately parallel to the axis of the housing 100, the lock 213 abuts against the limiting portion 32; the lock catch 213 slides on the control member 212, the lock catch 213 is separated from the position-limiting portion 32, and the control member 212 can control the holding portion 120 to continue moving. In this embodiment, the arrangement of the lock 213 and the position-limiting portion 32 plays a role in prompting that the operator will lock the boss 142 and the buckle 152 if the operator continues to drag the control member 212 when the lock 213 abuts against the position-limiting portion 32; when the operator confirms that the clamped defective wound surface is correct, the lock catch 213 can be controlled to slide on the control member 212, so that the lock catch 213 is separated from the limiting part 32, the operator continues to pull the control member 212, and the boss 142 is locked with the buckle 152, so that the clamping part 120 and the clamping core 110 are in a closed and locked state.

As shown in fig. 10 and 11, in an embodiment of the present invention, the second sliding groove 121 includes an arc-shaped groove 1212 and a guiding locking groove 1211, the guiding locking groove 1211 is disposed along an axial direction of the housing 100, and after the clamping portion 120 clamps the object and is parallel to the axial direction of the housing 100, the control member 212 controls the second end of the movable member 211 to slide in the guiding locking groove 1211, so as to lock the boss 142 and the latch 152.

In this embodiment, the control member 212 controls the movable member 211 to slide in the arc-shaped slot 1212, so as to control the two clamping portions 120 to open or close relative to the clamping core 110 to clamp the target object; when the operator confirms that the clamped defective wound surface is correct, the control element 212 controls the movable element 211 to slide into the guide locking groove 1211 and slide in the guide locking groove 1211 to lock the boss 142 and the buckle 152, so that the clamping part 120 and the clamping core 110 are in a closed and locked state without the application of force by the operator, and the large-size alimentary tract mucosa defective wound surface can be closed.

Example 5

As shown in fig. 15 to 18, an endoscopic tunnel suture clip according to an embodiment of the present invention is different from embodiment 4 in that: as shown in fig. 15 and 16, the endoscopic tunnel suture clip includes: two cards 153. The card 153 is disposed between the first spacer 13 and the clamping portion 120, as shown in fig. 17a and 17b, an avoiding space 160 is disposed on the card 153, and the control member 212 passes through the avoiding space 160 and is connected to the movable member 211. As shown in fig. 17c, a boss 142 is provided at the distal end of the first septum 13; as shown in fig. 18, the card 153 can be snapped onto the boss 142. The control member 212 is disposed between the boss 142 and the card 153. The avoidance space 160 may be in the form of a hole, slot, etc.

According to the endoscope channel suture clip provided by the invention, after the clamping part 120 clamps a target object (defect wound surface), an operator continues to pull the control part 212 backwards, so that the clamping piece 153 is clamped on the boss 142 and locked with the boss 142, thereby closing the large-size alimentary canal mucosa defect wound surface, and the clamping part 120 and the clamping core 110 are in a closed and locked state. The card 153 has simple structure, on one hand, the production and the manufacture are easy, thereby reducing the production and the manufacture cost of the product; on the other hand, the assembly is easy, thereby improving the production efficiency of the product and further reducing the production and manufacturing cost of the product. In addition, the control part 212 is arranged between the boss 142 and the card 153 due to the arrangement of the avoiding space 160, so that the distance between the boss 142 and the card 153 is increased, even if the boss 142 and the card 153 have larger installation space, the boss 142 and the card 153 can be made larger, the overall strength of the boss 142 and the card 153 is increased, and the market competitiveness of a product is increased.

As shown in fig. 17a and 17b, in one embodiment of the present invention, the distal end of the card 153 is provided with an escape slot 1531, and the shaft 130 passes through the escape slot 1531 to be connected to the housing 100. In this embodiment, the contact area between the card 153 and the boss 142 can be increased by the arrangement of the avoiding groove 1531, so that the connection strength between the boss 142 and the card 153 is increased, and the connection strength between the card 153 and the boss 142 is further ensured.

Example 6

As shown in fig. 19 to 21b, an endoscopic tunnel suture clip according to an embodiment of the present invention includes: the clamping device comprises a shell 100, a clamping core 110, two clamping parts 120, two buckles 152, two groups of control members 212 and a movable member 211 (a control component 200) which are connected with each other.

As shown in fig. 19 and 20a, the case 100 includes: a housing 12 and a second spacer 14. In this embodiment, the second separator 14 is different from the embodiments 4 and 5. The second separator 14 shown in fig. 19 and 20a is the first separator 13 described in embodiment 4, and the shape and structure of the first separator 13 is slightly different from that of the second separator 14, and the second separator 14 is illustrated in this embodiment in order to make the representation clear and not to make any ambiguity in the different embodiments and the corresponding drawings. A second spacer 14 is fixed inside the casing 12, the second spacer 14 dividing the casing 12 into two symmetrical channels, two control members 212 being located in the two channels, respectively; the second separator 14 is provided with a boss 142.

As shown in fig. 19, the latch 152 is disposed between the second spacer 14 and the clamping portion 120, as shown in fig. 20b, an escape space 160 is disposed on the latch 152, the control member 212 passes through the escape space 160 to connect with the movable member 211, and the latch 152 can be hooked on the boss 142. The control member 212 is disposed between the catch 152 and the boss 142. The avoidance space 160 may be in the form of a hole, slot, etc.

It should be noted that, for example, in the present embodiment, in order to provide a certain guarantee for the rotational stability of the clamping portion 120 on the rotating shaft 130, a gasket or a washer may be respectively disposed between the two clamping portions 120 and the clamping core 110, so as to prevent the clamping portion 120 from shifting on the rotating shaft 130 when rotating relative to the clamping core 110, thereby affecting the operation accuracy of the endoscopic tunnel suture clip according to the embodiment of the present invention.

According to the endoscope channel suture clip provided by the invention, after the clamping part 120 clamps the target object (defect wound surface), the operator continuously pulls the control part 212 backwards to enable the buckle 152 to be hooked on the boss 142 and locked with the boss 142, so that the clamping part 120 and the clamping core 110 are in a closed and locked state under the condition that the operator does not need to apply force, and the large-size alimentary canal mucosa defect wound surface can be closed. The buckle 152 has a simple structure, and on one hand, the production and the manufacture are easy, so that the production and the manufacture cost of the product are reduced; on the other hand, the assembly is easy, thereby improving the production efficiency of the product and further reducing the production and manufacturing cost of the product. In addition, dodge the setting of space 160, make control 212 be located buckle 152 hook between boss 142 to increased the distance between boss 142 and the buckle 152, even boss 142 has great installation space with buckle 152, make boss 142 and buckle 152 can do great, and then increased the bulk strength of boss 142 and buckle 152, reduced the probability of damage, increased the market competition of product.

As shown in fig. 19 and 20a, in an embodiment of the present invention, the boss 142 and the second separator 14 may be manufactured by a one-piece casting process, thereby ensuring the coupling strength between the boss 142 and the second separator 14.

In one embodiment of the present invention, as shown in fig. 5 and 6, the endoscopic tunnel suture clip further comprises: a handle 300. The handle 300 is symmetrically provided with two guide rails 31, the two control members 212 are respectively connected with the two guide rails 31 and can slide along the guide rails 31, and the guide rails 31 are provided with limit parts 32. The other end of the control member 212 is provided with a latch 213, and the latch 213 can slide on the control member 212. After the clamping portion 120 clamps the target object and is parallel or approximately parallel to the axis of the housing 100, the lock 213 abuts against the limiting portion 32; the lock catch 213 slides on the control member 212, the lock catch 213 is separated from the position-limiting portion 32, and the control member 212 can control the holding portion 120 to continue moving.

In this embodiment, the arrangement of the lock 213 and the position-limiting portion 32 plays a role in prompting that the operator will lock the boss 142 and the buckle 152 if the operator continues to drag the control member 212 when the lock 213 abuts against the position-limiting portion 32; when the operator confirms that the clamped defective wound surface is correct, the lock catch 213 can be controlled to slide on the control member 212, so that the lock catch 213 is separated from the limiting part 32, the operator continues to pull the control member 212, and the boss 142 is locked with the buckle 152, so that the clamping part 120 and the clamping core 110 are in a closed and locked state.

As shown in fig. 19, in an embodiment of the present invention, the second sliding groove 121 includes an arc-shaped groove 1212 and a guiding locking groove 1211, the guiding locking groove 1211 is disposed along the axial direction of the housing 100, and after the holding portion 120 holds the object and is parallel to the axial direction of the housing 100, the control member 212 controls the second end of the movable member 211 to slide in the guiding locking groove 1211, so as to lock the boss 142 with the latch 152.

Example 7

As shown in fig. 22 to 25, an endoscopic tunnel suture clip according to an embodiment of the present invention includes: the clamping device comprises a shell 100, a clamping core 110, two clamping parts 120, and two sets of control members 212 and movable members 211 (control components 200) which are connected with each other.

As shown in fig. 22 to 24, the housing 100 is symmetrically provided with the first sliding grooves 11, the first sliding grooves 11 are arranged along the axial direction of the housing 100, and the protrusions 143 are symmetrically arranged in the first sliding grooves 11. As shown in fig. 22 and 23, the two clamping portions 120 are mounted on the housing 100 through a rotating shaft 130 and can rotate relative to the housing 100, and the clamping portions 120 are provided with second sliding grooves 121.

The two sets of control assemblies 200 are respectively connected with the two clamping portions 120 and can slide in the second sliding groove 121, and the two sets of control assemblies 200 respectively drive the two clamping portions 120 to move, so that the clamping portions 120 are opened or closed relative to the clamping core 110 to clamp the target object.

As shown in fig. 25, the first end of the movable member 211 is disposed in the first sliding slot 11 and can slide in the first sliding slot 11, and the first end of the movable member 211 can be clamped on the protrusion 143; the second end of the movable member 211 is disposed in the second sliding slot 121 and can slide in the second sliding slot 121. One end of the control member 212 is connected to the movable member 211, and the other end extends out of the housing 100; after the clamping portion 120 clamps the object and is parallel to the axis of the housing 100, the control element 212 controls the clamping portion 120 to continue moving, so as to lock the movable element 211 with the protrusion 143. The housing 100 is further provided with a deformation gap 16, and the deformation gap 16 is communicated with the first sliding slot 11 and is located at one end of the first sliding slot 11 adjacent to the protrusion 143.

According to the endoscope pore canal suture clip provided by the invention, after the clamping part 120 clamps the target object (defect wound surface), the operator continuously pulls the control element 212 backwards to enable the movable element 211 to abut against the protrusion 143 and be locked with the protrusion 143, so that the clamping part 120 and the clamping core 110 are in a closed and locked state under the condition that the operator does not need to apply force, and the large-size alimentary canal mucosa defect wound surface can be closed. The matching structure of the protrusion 143 and the movable piece 211 is simple, on one hand, the production and the manufacture are easy, thereby reducing the production and the manufacture cost of products; on the other hand, the assembly is easy, thereby improving the production efficiency of the product and further reducing the production and manufacturing cost of the product. In addition, when the movable piece 211 slides over the protrusion 143, the movable piece 211 presses the protrusion 143 to deform the housing 12, and the deformation gap 16 provides a deformation space for the deformation of the housing 12, so that the housing 12 is more easily subjected to the pressing deformation, thereby reducing the resistance of the movable piece 211 when sliding over the protrusion 143, facilitating the operation of a user, further improving the use comfort of the product, and increasing the market competitiveness of the product.

Example 8

As shown in fig. 26 to 29, an endoscopic tunnel suture clip according to an embodiment of the present invention includes: the clamping device comprises a shell 100, a clamping core 110, two clamping parts 120, and two sets of control members 212 and movable members 211 (control components 200) which are connected with each other.

As shown in fig. 26 to 28, the housing 100 is symmetrically provided with the first sliding grooves 11, the first sliding grooves 11 are arranged along the axial direction of the housing 100, and the protrusions 143 are symmetrically arranged in the first sliding grooves 11. The two clamping portions 120 are mounted on the housing 100 through a rotating shaft 130 and can rotate relative to the housing 100, and the clamping portions 120 are provided with second sliding grooves 121. The two sets of control assemblies 200 are respectively connected with the two clamping portions 120 and can slide in the second sliding groove 121, and the two sets of control assemblies 200 respectively drive the two clamping portions 120 to move, so that the clamping portions 120 are opened or closed relative to the clamping core 110 to clamp the target object.

As shown in fig. 29, the first end of the movable member 211 is disposed in the first sliding slot 11 and can slide in the first sliding slot 11, and the first end of the movable member 211 can be clamped on the protrusion 143; the second end of the movable member 211 is disposed in the second sliding slot 121 and can slide in the second sliding slot 121. One end of the control member 212 is connected to the movable member 211, and the other end extends out of the housing 100; after the clamping portion 120 clamps the object and is parallel or approximately parallel to the axis of the housing 100, the control element 212 controls the clamping portion 120 to continue moving, so as to lock the movable element 211 with the protrusion 143. The housing 100 is further provided with two deformation holes 15, the two deformation holes 15 are symmetrical with respect to the first sliding slot 11, and the deformation holes 15 are arranged along the length direction of the first sliding slot 11 and adjacent to the protrusion 143.

According to the endoscope pore canal suture clip provided by the invention, after the clamping part 120 clamps the target object (defect wound surface), the operator continuously pulls the control element 212 backwards to enable the movable element 211 to abut against the protrusion 143 and be locked with the protrusion 143, so that the clamping part 120 and the clamping core 110 are in a closed and locked state under the condition that the operator does not need to apply force, and the large-size alimentary canal mucosa defect wound surface can be closed. The matching structure of the protrusion 143 and the movable piece 211 is simple, on one hand, the production and the manufacture are easy, thereby reducing the production and the manufacture cost of products; on the other hand, the assembly is easy, thereby improving the production efficiency of the product and further reducing the production and manufacturing cost of the product. In addition, when the movable piece 211 slides over the protrusion 143, the movable piece 211 presses the protrusion 143 to deform the housing 12, and the deformation hole 15 provides a deformation space for the deformation of the housing 12, so that the housing 12 is more easily subjected to the pressing deformation, thereby reducing the resistance of the movable piece 211 when sliding over the protrusion 143, facilitating the operation of a user, further improving the use comfort of the product, and increasing the market competitiveness of the product.

It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. This need not be exhaustive. And obvious variations or modifications therefrom are within the scope of the invention.

Claims

1. The endoscope pore canal suture clamp is characterized by comprising a clamping core, two clamping parts, a first locking part and a second locking part, wherein the two clamping parts are respectively arranged opposite to the clamping core, the first locking part and the second locking part can be locked with each other, the two clamping parts can respectively move to be closed with the clamping core, the near ends of the clamping parts are further connected with a control component, the control component is driven to move relative to the clamping core, the clamping parts can be driven to be closed relative to the clamping core, and the second locking part and the first locking part are driven to be locked, so that the clamping parts and the clamping core are locked in a closed state.

2. The endoscopic duct suturing clip according to claim 1, wherein a housing is further extended from the clamping core and covers the control assembly, and the clamping portion is rotatably connected to the clamping core so as to be rotated to close or open relative to the clamping core under the driving action of the control assembly.

3. The endoscopic duct suturing clip according to claim 2, wherein the control assembly comprises a moving member and a control member connected to each other, a first sliding slot is axially disposed on the housing, the first locking member is disposed on the housing, a second sliding slot is disposed on the clamping portion, the moving member respectively passes through the first sliding slot and the second sliding slot, the control member is pulled to slide the moving member in the second sliding slot, the clamping portion is driven to rotate around the rotating shaft on the housing to close the clamping core, and the moving member slides in the first sliding slot, so that the first locking member and the second locking member are locked to each other.

4. The endoscopic tunnel suturing clip of claim 3 wherein the first locking element is a first hook disposed on an inner wall of the housing and extending into the housing;

the second locking piece is a second clamping hook which is arranged on the movable piece and extends towards the shell; the second hook interferes with the housing in a radial movement within the housing.

5. The endoscopic tunnel suturing clip of claim 3 wherein the first locking element is a first hook disposed on an inner wall of the housing and extending into the housing;

the second locking piece is a second clamping hook; an avoiding space is arranged on the second hook, the control piece penetrates through the avoiding space to be connected with the moving piece between the moving piece and the shell, and the first hook can be hooked with the second hook.

6. The endoscopic tunnel suture clip according to claim 3, wherein the housing comprises a shell and a spacer fixed inside the shell, the spacer dividing an inner space of the housing into two channels for controlling movement of the clamping portion, respectively;

the first locking piece is the spacer is towards the boss that sets up respectively on the surface of two passageways, the second locking piece is for setting up on the moving part and towards buckle or card that the spacer stretches out, the moving part drives buckle or card motion in order with the boss block.

7. The endoscopic tunnel suturing clip according to claim 6, wherein the second locking member is a buckle disposed between the spacer and the clamping portion, the buckle having an avoidance space disposed thereon, the control member being connected to the movable member through the avoidance space; the boss is arranged at the near end of the spacer, third sliding grooves are formed in the surfaces, facing the two channels, of the spacer along the axial direction of the shell respectively, and the movable piece moves in the third sliding grooves to enable the buckle to be hooked on the boss.

8. The endoscopic tunnel suturing clip of claim 6 wherein the second locking element is a card and the control member is disposed between the card and the spacer; the card is provided with an avoiding space, the control piece penetrates through the avoiding space to be connected with the movable piece, the boss is arranged at the far end of the spacer, third sliding grooves are formed in the surfaces, facing the two channels, of the spacer along the axial direction of the shell respectively, and the movable piece moves in the third sliding grooves to enable the card to be hooked on the boss.

9. The endoscopic tunnel suturing clip of claim 8 wherein the distal end of the retaining plate is further provided with an escape slot, the retaining portion being open relative to the clamping core, the shaft passing into the escape slot.

10. The endoscopic tunnel suturing clip according to claim 6, wherein the second locking member is a buckle disposed between the spacer and the clamping portion, the buckle having an avoidance space disposed thereon, the control member being connected to the movable member through the avoidance space; the control piece drives the movable piece to move, and the buckle can be hooked on the boss.

11. The endoscopic tunnel suturing clip according to any one of claims 5, 7, 8 and 10, wherein the second locking member is connected to the movable member, and wherein two side surfaces of the control member disposed along the moving direction of the control member are respectively abutted against side walls of the avoidance space.

12. The endoscopic duct suturing clip according to claim 3, wherein the first locking member is a protrusion symmetrically disposed on both sides of the first sliding slot along the extending direction of the first sliding slot, the second locking member is a first end of the movable member extending into the first sliding slot, and the first end of the movable member is adapted to engage with the protrusion.

13. The endoscopic tunnel suturing clip according to claim 12, wherein two deformation holes are provided on the housing, and the two deformation holes are symmetrically provided on both sides of the first sliding groove along the length direction of the first sliding groove and adjacent to the protrusion.

14. The endoscopic tunnel suturing clip of claim 12 wherein a deformation gap is provided in the housing in communication with the first runner at an end of the first runner adjacent the protrusion.

15. The endoscopic tunnel suture clip of claim 3, further comprising: the handle is symmetrically provided with two guide rails, the two control pieces are respectively connected with the two guide rails and can slide along the guide rails, and the guide rails are provided with limiting parts;

the control piece is also provided with a lock catch, and the lock catch can slide on the control piece; the clamping part clamps the target object, and the lock catch abuts against the limiting part; the lock catch slides on the control piece to be separated from the limiting part, and the control piece can control the clamping part to move continuously, so that the clamping part is locked.

16. The endoscopic duct suturing clamp according to claim 3, wherein the second sliding slot comprises an arc-shaped slot and a guiding locking slot connected end to end, the guiding locking slot is disposed along the axial direction of the housing, the clamping portion clamps the object, and when the clamping portion is parallel to the axis of the housing, the control member controls the movable member to slide in the guiding locking slot to lock the first locking member and the second locking member.