CN114533168A - Interlink clip suturing device - Google Patents

Abstract

The invention discloses a interlinked clip suturing device, belonging to the technical field of medical instruments, and comprising a belt line clamp and a belt ring clamp; the suture line clamp comprises a clamp body and a suture line, wherein the suture line comprises a connecting end and a traction end, and the connecting end is connected to the clamp body; the belt ring clamp comprises a clamp body and a ring connected to the clamp body; the traction end passes through the ring, and the traction end pulls the ring to drive the clamp bodies to approach. Wherein, through setting up belt wheel clip, set up the ring on its clip body, be favorable to passing the stylolite of beltline clip, when sewing up, only need through the stylolite of the same kind of tractive, can make each clip body draw close each other, drive the surface of a wound closure, realize the tension reduction and the closure to the surface of a wound, easy operation can close the surface of a wound and the defect of alimentary canal safely, high-efficiently under the scope.

Description

Clamp Suture Device

technical field

The invention belongs to the technical field of medical devices, and in particular relates to a suturing device for a serial clip.

Background technique

Endoscopic submucosal dissection (ESD) is becoming more and more popular. One of the main complications of ESD and its derivatives is gastrointestinal perforation and gastrointestinal fistula. Currently, the main methods to solve such gastrointestinal problems under endoscopy are: : Endoscopic metal clip closure, endoscopic nylon rope suture, surgical repair. However, the above methods have many drawbacks, mainly including: (1) metal clips under endoscope are suitable for small perforations, but titanium clips for large perforations are difficult to clip, and often need to be sutured with nylon ropes; (2) the currently used nylon ropes are The annular structure makes it difficult to fix the wound around the wound when sutured under the endoscope; (3) Surgical repair has large trauma and high cost, so it is not the preferred method.

SUMMARY OF THE INVENTION

Purpose of the invention: The present invention provides a suture device with a serial clip, which aims to solve the technical problem that the prior art cannot efficiently suture larger wounds.

Technical solution: In order to achieve the above-mentioned purpose of the invention, a serial clip suture device provided by the present invention includes:

A clip with wire, comprising a clip body and a suture, the suture comprises a connecting end and a pulling end, and the connecting end is connected to the clip body;

A clip with a ring, comprising a clip body and a ring connected to the clip body;

The pulling end passes through the ring; the pulling end pulls the ring and drives the clip bodies to move closer together.

In some embodiments, the clip body includes a clip base and a clip connected to the clip base;

The connecting end is connected to the clip of the wire clip, and/or the ring is connected to the clip of the loop clip.

In some embodiments, the ring is a flexible ring.

In some embodiments, the suture is connected to the clip body of the wire clip by welding or knotting.

In some embodiments, the serial clip suturing device further includes a release device, the release device feeds and releases the wire clip from the forceps, so that the wire clip is clamped around the wound surface.

In some embodiments, the chain clip suture device further includes a locking device, the pulling end is locked by the locking device, and the locking device includes:

The locking element includes a first locking block and a second locking block, and a locking area for passing and locking the suture is formed between the first locking block and the second locking block.

In some embodiments, the locking device includes:

a steering assembly including a threading channel for passing the suture, the threading channel including a cutout for severing the suture, the distal end of the steering assembly detachably connected to the first locking block ;

a pulling rope, the proximal end of which is connected with the manipulation assembly, and the distal end is detachably connected with the second locking block;

The pull rope is controlled by the control assembly, and the second lock block is pulled to the first lock block to be locked, and then the pull rope is separated from the second lock block.

In some embodiments, the manipulation assembly includes:

a manipulation mechanism, connected to the proximal end of the pull rope, for controlling the pull rope;

a catheter, arranged around the drawstring, the proximal end of which is connected with the manipulation mechanism;

a support part, connected to the distal end of the catheter, and the threading channel is formed on the support part;

The first locking block is connected to the distal end of the supporting portion.

In some embodiments, the support portion includes:

a base, connected to the distal end of the catheter, and the shearing portion is arranged on the base;

or,

The support section includes:

a base connected to the distal end of the catheter, the base comprising a first shearing unit;

a sliding block, connected to the base, and sliding along the base to the proximal direction by the pulling rope, and the sliding block includes a second shearing unit;

The first shearing unit and the second shearing unit constitute the shearing portion.

In some embodiments, the first locking block is connected to the base;

or,

The first locking block is connected to the sliding block, and the first locking block includes a limiting part, the limiting part abuts on the base, and is used for when the sliding block slides toward the proximal direction , to separate the first lock block from the slider.

In some embodiments, the slider includes a through hole through which the pull cord passes; a blocking portion is provided on the pull cord, and when the blocking portion abuts on the slider, The pull rope pulls the slider to slide in the proximal direction.

In some embodiments, the second lock block includes a connection portion, the pull cord is connected to the connection portion, and the pull cord and the second lock block are separated through deformation of the connection portion.

In some embodiments, the connecting portion is an elastic hole, the pull cord is locked in the elastic hole, and the pull cord and the second locking block are separated through expansion and deformation of the elastic hole. .

In some embodiments, the first locking block is a sleeve, and the second locking block is inserted into the first locking block to lock the suture.

Beneficial effects: compared with the prior art, the suture device of the chain clip of the present invention includes a clip with a wire and a clip with a loop; the clip with a wire includes a clip body and a suture, and the suture includes a connecting end and a pulling end, and the connecting end is connected to the clip. on the body; the clip with a ring includes a clip body and a ring connected to the clip body; the pulling end passes through the ring, and the pulling end pulling the ring drives each clip body to move closer. Among them, the clip body is provided with a loop, which is beneficial to pass the suture thread of the wire clip. During suture, only by pulling all the suture lines, the clip bodies can be moved closer to each other and drive the wound surface. It is easy to operate, and can solve various digestive tract problems safely and efficiently under the endoscope.

Description of drawings

The technical solutions and other beneficial effects of the present invention will be apparent through the detailed description of the specific embodiments of the present invention with reference to the accompanying drawings.

FIG. 1 is a schematic structural diagram of a serial clip suture device provided by an embodiment of the present invention;

FIG. 2 is a schematic diagram of the combined structure of the wire clip and the release device in the embodiment of the present invention;

FIG. 3 is a schematic diagram of the combined structure of the ring clip and the release device in the embodiment of the present invention;

4 is a schematic three-dimensional structure diagram of a locking device in an embodiment of the present invention;

Figure 5 is a side view of the distal end portion of the locking device in the embodiment of the present invention;

6 is a schematic structural diagram of a first lock block of a locking device in an embodiment of the present invention;

7 is a schematic structural diagram of a second lock block of the locking device in the embodiment of the present invention;

FIG. 8 is a schematic structural diagram when the pull rope of the locking device pulls the first lock block to the second lock block for locking according to the embodiment of the present invention;

9 is a schematic cross-sectional structural diagram of the locking device in the embodiment of the present invention when the suture is passed through but not locked;

10 is a schematic cross-sectional structural diagram of the locking device in the embodiment of the present invention when passing through and locking the suture;

11 is a schematic cross-sectional structural diagram of the locking device in the embodiment of the present invention when the pull rope is separated from the second lock block and the slider is pulled to slide;

12 is a schematic cross-sectional structural diagram of the control assembly of the locking device in the embodiment of the present invention when it is separated from the first lock block;

13 is a schematic cross-sectional structural diagram of a support portion of a locking device in an embodiment of the present invention;

14 is a schematic cross-sectional structural diagram of the distal end portion of the locking device in other embodiments of the present invention;

Reference numerals: 1 - clip with thread; 2 - clip with loop; 3 - suture; 4 - locking device; 5 - clip seat; 6 - clip; 7 - release device; 8 - locking element; The first lock block; 10- the second lock block; 11- control assembly; 12- shear part; 13- pull rope; 14- control mechanism; 19-slider; 20-second shearing unit; 21-limiting part; 22-through hole; 23-blocking part; 24-connecting part; 25-clamp body; 26-ring.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, but not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative efforts shall fall within the protection scope of the present invention.

In the description of the present invention, it should be understood that the term "proximal" refers to the end close to the operator, "distal" refers to the end close to the wound surface, and the terms "central", "radial", "upper", The orientation or positional relationship indicated by "down", "front", "rear", "inside", "outside", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, while It is not indicated or implied that the indicated device or element must have a particular orientation, be constructed and operate in a particular orientation, and therefore should not be construed as limiting the invention. In addition, the terms "first" and "second" are only used for descriptive purposes, and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may expressly or implicitly include one or more of that feature. In the description of the present invention, "plurality" means two or more, unless otherwise expressly and specifically defined.

In the description of the present invention, it should be noted that the terms "installed", "connected" and "connected" should be understood in a broad sense, unless otherwise expressly specified and limited, for example, it may be a fixed connection or a detachable connection Connection, or integral connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the internal communication between two elements or the interaction relationship between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

The serial clip suturing device disclosed in the embodiments of the present application is mainly used for reducing and closing various types of wounds, fistulas, perforations, etc. in endoscopic surgery, and is especially suitable for suturing larger wounds.

The serial clip suture device includes a wire clip 1 and a loop clip 2 . As shown in Figure 1, the dashed part is the wound surface. During the suturing process, clamp the clip with thread 1 and the clip with loop 2 around the wound surface respectively, and pass the suture thread 3 of the clip with thread 1 through the suture of the clip with loop 2. By pulling the suture 3, the clip 1 with a wire and the clip 2 with a loop are brought closer to the middle, and the muscles around the wound are gathered to the middle, so that the wound can be sutured quickly and efficiently.

It can be understood that the number of clips with loops 2 is determined according to the size of the wound surface. For smaller wounds, only one clip with loops 2 can be set, and clips with wire 1 can be clamped on both sides of the wound surface, and the wound can be treated. Reduce tension and close; for larger wounds, multiple clips with loops 2 can be set up, and the clips with wire 1 are arranged around the wound in turn, and the sutures 3 of the clips with wire 1 pass through the loops of each clip 2 in turn. , by pulling the suture thread 3, the wound surface is pulled at multiple angles to improve the effect of suture.

Specifically, please refer to FIG. 2 , the clip 1 with thread includes a clip body 25 and a suture 3 , the suture 3 includes a connecting end and a pulling end, and the connecting end of the suture 3 is connected to the clip body 25 . In some embodiments, the clip body 25 can be directly selected from an existing disposable tissue clip, and the suture 3 can be connected on the basis of the existing disposable tissue clip, so that the clip 1 with thread can be made. The suture 3 is made of medical flexible materials, and the material can be metal or polymer. The connection method between the suture 3 and the clip body 25 can be welding or knotting. Those skilled in the art can choose a suitable connection according to the specific material. way to connect the two together. Since the suture thread 3 is relatively small compared to the clip body 25 and the material is relatively soft, it will not interfere with the movement of the clip body 25. Therefore, after the suture thread 3 is connected, the clip body 25 can still smoothly pass through the endoscope channel. , successfully completed the suture operation.

Please also refer to FIG. 3 , the ring clip 2 includes a clip body 25 and a ring 26 , and the ring 26 is connected to the clip body 25 . In some embodiments, the clip body 25 can be directly selected from the existing disposable tissue clips, modified on the basis of the existing disposable tissue clips, and connected with the ring 26 to form the ring clip 2 . Correspondingly, the ring 26 is also made of medical flexible materials, and the material can be metal or polymer. The connection method between the ring 26 and the clip body 25 can be welding or knotting and tying the ring. The material chooses the appropriate connection method to connect the two together. In the present application, a ring 26 is connected to the clip body 25 instead of punching holes on the clip body 25, because the size of the clip body 25 is already very small, and drilling holes on it increases the difficulty of production, and the punched holes are also It is inconvenient to thread the suture 3 . On the contrary, a ring 26 is additionally provided on the clip body 25, which is more convenient to pass through the suture 3, and because the ring 26 is flexible, it is relatively soft, and it is not easy to scratch the forceps, and it is not easy to cut the suture 3. It will interfere with the movement of the clip body 25 , so the looped clip 2 can also smoothly pass through the endoscope forceps, and successfully complete the suturing operation.

Please refer to FIG. 1 again, the clip body 25 includes a clip base 5 and a clip 6 , the clip 6 is connected to the clip base 5 , and the suture 3 can be connected to the clip base 5 or the clip 6 . Preferably, in some embodiments, the connecting end of the suture 3 is connected to the clip 6 . During suture, since the body around the wound needs to be clamped by the clip 6, when the suture 3 is connected to the clip 6, the connection position is farther from the wound surface than when the suture 3 is connected to the clip 5. After closing the clips, the wounds can be brought closer, the effect of suturing can be improved, and the clip body 25 can be prevented from falling down.

Correspondingly, the ring 26 can be connected to the clip base 5 or the clip 6. Preferably, in some embodiments, the ring 26 is connected to the clip 6, because the diameter of the clip 6 is larger than that of the clip 6. The seat 5 is small, and the ring 26 is connected to the clip 6, which will not increase the overall outer diameter of the clip body 25, and after the clip bodies 25 are folded, the wounds can be brought closer and the clip body 25 can be prevented from falling.

2 and 3 together, the chain clip suture device also includes a release device 7. The release device 7 is used to send and release the wire clip 1 or the loop clip 2 from the forceps channel, so that the clip body 25 is released. clip around the wound. Generally, the existing tissue clip releasing device in endoscopic surgery can be directly used, so as to facilitate the operator to perform the surgical operation. During the suturing process, the release device 7 sends the wire clip 1 into the body through the forceps channel, and pulls the handle back to release the wire clip 1, so that the wire clip 1 is clamped on one side of the wound surface, and the suture 3 is left in the forceps. Then, through the release device 7, the ring 26 of the ring clip 2 is put into the suture line 3, and is sequentially sent into the body through the forceps channel, and clamped around the wound surface. After that, the operator will pull the suture line 3 reserved in the forceps channel to pull the lock. Tight, cut off the excess suture 3, that is, to complete the reduction and closure of the wound.

In some embodiments, the chain clip suture device further includes a locking device 4, and the locking device 4 locks the pulling end of the suture 3. It can be understood that, after being locked, the pulling end of the suture 3 is It is the position locked by the locking device 4 .

The locking device 4 can be a device known in the art for tightening the wire, such as a rubber ring, a locking block, and the like. In the present application, the locking device 4 is specially designed in order to make the operation of locking the suture under the endoscope simpler and safer, and the locking effect is more stable and reliable. Please refer to FIGS. 4 to 14 together. In some embodiments, the locking device 4 includes a locking element 8 . The locking element 8 mainly includes two parts, namely, a first locking block 9 and a second locking block 10 . The suture 3 passes through the locking area between the first locking block 9 and the second locking block 10, and the locking and tightening of the suture 3 is realized through the combination of the two.

In some embodiments, the locking device 4 also includes a manipulation assembly 11 having a threading channel for passing the suture 3 with a cutout 12 for severing the suture 3 . And the distal end of the manipulation assembly 11 is detachably connected to the first locking block 9 for sending the locking element 8 into the body to lock the suture 3 and then separating from it. In some embodiments, steering assembly 11 includes steering mechanism 14 , catheter 15 and support 16 . The manipulation mechanism 14 is used to control the action of the entire locking device 4, including sending the distal end of the locking device 4 into the body along the suture 3 through the forceps, locking the suture 3 through the locking element 8, and cutting the suture 3. And take out the rest of the locking device 4 and the locking element 8 separately. The conduit 15 connects the manipulation mechanism 14 and the support portion 16 , on the one hand, it plays a role of extending and guiding, and on the other hand, it also accommodates the pulling rope 13 therein to form protection. The support part 16 is connected to the distal end of the catheter 15, and the threading channel is formed on the support part 16. Its function mainly includes three parts, one is to smoothly send the locking element 8 into the body and maintain the required working state, the other is to The redundant suture 3 can be cut, and the third is to separate from the locking element 8 after the suture 3 is locked.

The locking device 4 also includes a pull cord 13 whose function includes at least triggering the locking action of the locking element 8 to lock and tighten the suture 3 . After completing the locking, the pull cord 13 should also be separated from the locking element 8, leaving the locking element 8 in the body. Therefore, its proximal end is connected with the manipulation mechanism 14, so that the pulling rope 13 can be controlled by the manipulation mechanism 14, and the distal end is detachably connected to the second lock block 10, so that the second lock block 10 can be pulled to the The first locking block 9 realizes the locking of the suture 3, and is separated from the second locking block 10 after locking.

In some embodiments, the first locking block 9 is a sleeve as shown in FIG. 6 , and the distal end of the first locking block 9 is provided with a limiting portion 21 protruding radially. The second lock block 10 is a plunger as shown in FIG. 7 , which matches the shape of the sleeve of the first lock block 9 , and is inserted into the sleeve to lock the suture 3 . Both are made of medical materials, wherein the first lock block 9 can be integrally formed with medical metal material, and the second lock block 10 can be made of medical plastic, because it has a certain elasticity, so it is arranged on it for connecting the pulley. The connecting portion 24 of the rope 13 can be deformed when pulled under force, so that the pulling rope 13 is separated from the second locking block 10 . Specifically, the connecting portion 24 is an elastic channel, and the pull cord 13 can be locked in the elastic channel.

In some embodiments, the manipulation mechanism 14 can use the handle of the existing tissue clip release device in endoscopic surgery, which is convenient for the operator to perform the surgical operation.

In some embodiments, the conduit 15 can be a spring conduit as shown in FIG. 14 , which surrounds the outside of the pull cord 13 and can be covered with a protective film. In some embodiments, the conduit 15 can also be made of a rubber conduit or other materials.

In some embodiments, the support portion 16 mainly includes two parts, namely the base 17 and the slider 19, both of which are made of medical metal materials. As shown in FIG. 13 , the base 17 is substantially cylindrical and is connected to the distal end of the catheter 15 , and a slot is formed on the side wall to form the first shearing unit 18 . The slider 19 is a cylindrical structure whose outer wall and the inner wall of the base 17 fit together, and has a through hole 22 in the center. pass through. The distal end of the sliding block 19 is further provided with an accommodation cavity communicating with the through hole 22 , and a slot is also opened on the side wall of the accommodation cavity to form the second shearing unit 20 . The first shearing unit 18 and the second shearing unit 20 constitute the shearing part 12 , when the slider 19 slides proximally in the base 17 , the edges of the two slots are staggered to each other, so as to cut the suture 3 . cut.

In some embodiments, the pulling rope 13 can generally be a 0.4 mm cable, and a ball head is provided at the distal end to form the blocking part 23 . From the distal end to the proximal end, the pull rope 13 sequentially passes through the elastic hole of the second lock block 10 and the first lock block 9, enters the base 17, passes through the accommodation cavity of the slider 19, the through hole 22, and then passes through The conduit 15 is connected to the steering mechanism 14 .

As shown in FIG. 9, in the initial state of the locking device 4, the locking area between the first lock block 9 and the second lock block 10 should have a certain threading space. The two locking blocks 10 are separated, and the second locking block 10 is kept in linkage with the rest of the locking device 4 through the pulling rope 13 . The distal edges of the base 17 and the slider 19 are flush with each other, and the two slots are aligned with each other, and together with the accommodating cavity form a threading channel. The first locking block 9 is inserted into the accommodating cavity of the slider 19 , and its limiting portion 21 abuts against the edge of the base 17 , and the outer diameter of the limiting portion 21 is approximately the same as that of the base 17 . The operator needs to pass the suture 3 reserved in the forceps channel through the locking area slit and out from the two slots of the threading channel. Then, the distal end of the locking device 4 is gradually inserted into the forceps channel along the suture 3 to reach the vicinity of the wound surface, the suture is tightened, and the locking element 8 is brought closer to the root of the suture 3 .

As shown in FIG. 10 , the operator pulls the pull rope 13 toward the proximal end through the manipulation mechanism 14 , the second lock block 10 is then pulled into the first lock block 9 , and the suture 3 between the two is locked and tightened.

As shown in FIG. 11 , in the locked state, continue to pull the pull rope 13 toward the proximal end, and the blocking portion 23 formed by the ball head exerts a force directed toward the proximal end to the second locking block 10 . Existing, the base 17 forms a reaction force frame and exerts a reverse force, the combined action of the two forces deforms the elastic channel, the blocking portion 23 comes out of the elastic channel, releases the locking of the pull rope 13, and makes the pull rope 13 and the second lock Block 10 separates. As the pull rope 13 slides toward the proximal end, its blocking portion 23 abuts against the distal edge of the through hole 22 of the slider 19, so that the slider 19 is pulled by the pull rope 13 and slides toward the proximal end along the base 17. The cutting unit 18 and the second cutting unit 20 cut the redundant sutures 3 alternately.

As shown in FIG. 12 , as the sliding block 19 continues to move toward the proximal end, the first locking block 9 also gradually comes out of the accommodating cavity and is completely separated from the supporting portion 16 . At this time, the control assembly 11 can be pulled out, and the locking element 8 remains in the body.

Different from the above embodiments, in other embodiments, the first locking block 9 is inserted into the base 17 , and the inserted part thereof is in contact with the inner wall of the base 17 . The sliding block 19 is only used to cooperate with the base 17 to form the shearing portion 12, so a change is made based on the structure of FIG. Insert the part where the first lock block 9 is provided. The specific locking and cutting operations are substantially the same as the above embodiments.

In addition, in some other embodiments, the support part 16 cancels the provision of the slider 19, and only the base 17 is provided. The base 17 is substantially cylindrical and is connected to the distal end of the catheter 15. A slot is formed on the side wall of the base 17. The edge of the slot has a sharp edge to form a shearing portion 12. The lumen forms a threading channel for the suture 3 . The pull cord 13 passes through the inner cavity of the base 17 , passes through the first lock block 9 and is connected to the second lock block 10 . The first locking block 9 is inserted into the base 17 , and its insertion part is in contact with the inner wall of the base 17 . The outer diameter is approximately the same.

In this embodiment, the operator still operates the control mechanism 14 to control the pull rope 13 to be pulled proximally and pull the second locking block 10 into the first locking block 9 to achieve locking and tightening of the suture 3 . At this time, continue to tighten the suture 3. By pulling out the control assembly 11 of the locking device 4 to the outside of the body, the base 17 can be separated from the locking element 8, and it can be kept in the body. Cut off excess suture 3.

In the above-mentioned embodiments, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference may be made to the relevant descriptions of other embodiments.

A serial clip suturing device provided by the embodiments of the present invention has been described in detail above, wherein the principles and implementations of the present invention are described with specific examples, and the descriptions of the above embodiments are only used to help understand the technology of the present invention The solution and its core idea; those of ordinary skill in the art should understand that it is still possible to modify the technical solutions recorded in the foregoing embodiments, or to perform equivalent replacements for some of the technical features; and these modifications or replacements do not make The essence of the corresponding technical solutions deviates from the scope of the technical solutions of the embodiments of the present invention.

Claims (13)

1. A interlinked clip sewing device, comprising:

the suture clip (1) comprises a clip body (25) and a suture (3), wherein the suture (3) comprises a connecting end and a traction end, and the connecting end is connected to the clip body (25);

a band clip (2) comprising a clip body (25) and a ring (26) connected to the clip body (25);

the pulling end passing through the loop (26); the traction end pulls the ring (26) to drive the clamp bodies (25) to draw together.

2. A interlinked clip sewing device according to claim 1, wherein said clip body (25) comprises a holder (5) and a clip (6) connected to said holder (5);

the connecting end is connected to the clamping piece (6) of the belt line clamp (1), and/or the ring (26) is connected to the clamping piece (6) of the belt line clamp (2).

3. A interlinked binder stitching device according to claim 1, characterized in that said ring (26) is a flexible ring.

4. An interlinked clip sewing device according to claim 1, characterized in that the suture thread (3) is connected to the clip body (25) of the laced clip (1) by means of welding or knotting.

5. A interlinked clip stitching device according to claim 1, further comprising a releasing device (7), wherein the releasing device (7) feeds and releases the tape clip (1) and the loop clip (2) from the channel so that the tape clip (1) and the loop clip (2) clamp around the wound surface.

6. A interlinked binder sewing device according to claim 1, further comprising a locking device (4), said pulling end being locked by said locking device (4), said locking device (4) comprising:

a locking element (8) comprising a first locking piece (9) and a second locking piece (10), the first locking piece (9) and the second locking piece (10) forming a locking area therebetween for passing and locking the suture (3).

7. A interlinked slot device according to claim 6, characterized in that said locking means (4) comprises:

a handling assembly (11) comprising a threading channel for passing the suture (3), the threading channel comprising a cutting portion (12) for cutting the suture (3), a distal end of the handling assembly (11) being detachably connected to the first lock block (9);

a pull rope (13) with the proximal end connected with the control component (11) and the distal end detachably connected with the second locking block (10);

the pull rope (13) is controlled by the control assembly (11), the second locking block (10) is pulled to the first locking block (9) to be locked, and then the pull rope (13) is separated from the second locking block (10).

8. A interlink clip suturing device according to claim 7, wherein the manipulation assembly (11) comprises:

a control mechanism (14) connected to the proximal end of the pull rope (13) for controlling the pull rope (13);

a catheter (15) arranged around the pull rope (13), the proximal end of the catheter being connected to the control mechanism (14);

a support portion (16) connected to the distal end of the catheter (15), the threading channel being formed on the support portion (16);

the first locking piece (9) is connected to the distal end of the support portion (16).

9. A interlinked clip suturing device according to claim 8, in which the support part (16) comprises:

a base (17) connected to a distal end of the catheter (15), the shear section (12) being disposed on the base (17);

or,

the support portion (16) includes:

a base (17) connected to the distal end of the catheter (15), the base (17) comprising a first shearing unit (18);

a slider (19) connected to the base (17) and sliding in a proximal direction along the base (17) by being pulled by the pull cord (13), the slider (19) including a second cutting unit (20);

the first shearing unit (18) and the second shearing unit (20) constitute the shearing section (12).

10. A interlinked binder sewing device according to claim 9, characterized in that said first locking piece (9) is connected to said base (17);

or,

the first locking block (9) is connected with the sliding block (19), the first locking block (9) comprises a limiting part (21), the limiting part (21) abuts against the base (17) and is used for realizing separation of the first locking block (9) and the sliding block (19) when the sliding block (19) slides towards the near end direction.

11. A interlink stitching device according to claim 9, wherein the slider (19) comprises a through hole (22), the pull cord (13) passing through the through hole (22); the pull rope (13) is provided with a blocking part (23), and when the blocking part (23) abuts against the sliding block (19), the pull rope (13) pulls the sliding block (19) to slide towards the proximal direction.

12. A chainring sewing device according to claim 7 or 11 wherein the second lock piece (10) comprises a coupling portion (24), the pull cord (13) being coupled to the coupling portion (24), the pull cord (13) and the second lock piece (10) being separated by deformation of the coupling portion (24).

13. A interlinked binder mechanism as claimed in claim 12, wherein said connecting portion (24) is an elastic channel in which said pull cord (13) is locked, and said pull cord (13) and said second lock piece (10) are separated by the expansion and deformation of said elastic channel.

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