CN113598857B

CN113598857B - Full-visual chemical fiber ring stitching instrument under endoscope

Info

Publication number: CN113598857B
Application number: CN202111090539.7A
Authority: CN
Inventors: 刘光旺; 高娟
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-09-17
Filing date: 2021-09-17
Publication date: 2024-01-26
Anticipated expiration: 2041-09-17
Also published as: CN113598857A

Abstract

The invention discloses a full-visual chemical fiber ring stitching instrument under an endoscope, which comprises a stitching thread and a guiding device, wherein the stitching thread comprises a thread body and a thread bolt; the wire body is used for pulling and tightening the fiber ring opening and knotting under the mirror; the thread plug is connected to the tail end of the thread body and is reserved in the fiber ring after the puncture needle penetrates through the fiber ring; the wire bolt is a hard absorbable wire rod with barbs on the surface, when the wire bolt is acted by the tensile force of the wire body, the barbs automatically scatter, and the width or the maximum outer diameter of the wire bolt is larger than the diameter of the original puncture point, so that the wire bolt cannot be pulled out from the original puncture point when the wire body is pulled; the guiding device comprises a metal catheter for puncture, and is used for guiding a wire bolt of a suture line into the inside of the fiber ring; the metal catheter for pushing the wire bolt is hollow, and the tail end is a puncture end and is in a sharp arc shape; the sharp opening of the puncture end is used for leading the guide wire bolt to penetrate into the inside of the fiber ring. The suture instrument is slender, can be fully visualized under an endoscope, has a simple structure, is ingenious in design and is convenient to use.

Description

Full-visual chemical fiber ring stitching instrument under endoscope

Technical Field

The invention relates to an intervertebral disc fibrous ring stitching device, in particular to an endoscopic minimally invasive stitching device.

Background

The herniation of intervertebral disc is caused by rupture of annulus fibrosus due to external force or strain, and nucleus pulposus protrudes or is free from the rupture of annulus fibrosus from the inside of intervertebral disc, so that the nerve and the dura mater sac are pressed to cause sciatica. The nucleus pulposus is required to be removed in operation, but the fiber ring fracture after the nucleus pulposus is removed still exists, if the effective repair is not obtained, the fibril ring fracture is still a weak area under the action of external force in the future, the nucleus pulposus can be broken again, the nucleus pulposus can be protruded again along the original fracture, the recurrence is caused, the operation of an intervertebral foraminicope (spinal endoscope) is an effective means for treating the protrusion of intervertebral disc, the wound is small, the recovery is quick, but because an instrument channel in the endoscope body of the spinal endoscope is very narrow, the existing suturing tool is only 3.5-4.3 mm, the existing suturing tool can only be used in open operation, and can not pass through a narrow endoscope channel of the spinal endoscope, and the full visual suturing of the broken fiber ring under the endoscope can not be realized.

For example: CN205683106U in the prior art typically uses a barb to puncture one side of the laceration, and then uses a needle point of the barb to puncture the tissue on the other side of the laceration, so as to guide the suture line to suture. However, the operation difficulty is very high, the barbs need to be broken, the barbs are completely penetrated out from the inner side of the fiber ring to guide the suture, the diameter of the barbs is larger than that of the channel of the conventional endoscope instrument (3.5-4.3 mm), the barbs can only be used under a customized large-channel endoscope with the diameter of more than 10 mm, the large-channel endoscope with the diameter of more than 10 mm does not accord with the original meaning of minimally invasive, and the working end of the suture instrument and the wall of the endoscope are extruded during operation so that the suture is broken when the puncture is frequently generated. In addition, the prior art CN107822680B uses a threading device to make two ends of a suture thread with a bar at two ends pass through two sides of the break respectively, then pull the bar out of the break, and cut the bar off and knotted, which has three disadvantages: 1. the length of the suture thread is fixed, and meanwhile, the thread is assembled in a pipeline, so that the position of the thread can be changed in the transportation process, and the problems that the thread rod is blocked from penetrating out or the thread is scratched by a puncture needle in the penetrating process, so that the thread strength is weakened or broken easily occur; 2. the wire rod is hollow in the puncturing process, two push pins for pushing the wire rod are arranged, one of the push pins is hollow, the other push pin passes through the hollow wire rod, the structure is complex, the cost is high, the assembly requirement of the wire rod is high, if the wire rod is blocked in use, the first wire rod enters the fiber ring, and the second wire rod cannot be normally pushed out, but at the moment, the suture thread is still left in the wire tube of the suturing device, the suture thread is difficult to cut, and even if the suture thread is cut, the first wire rod is still left in the fiber ring, so that more risks are added to the operation; 3. the wire rod is pulled back from the break, one side of the wire rod is cut off, but the wire rod can obstruct the suture line of sight, on the other hand, the wire rod is pulled back from the middle of the break, the suture line can be left in the break, the break is slow to heal, and the subsequent recurrence probability is high; 4. the wire rod is cylindrical, the surface is smooth, the wire rod cannot be fixed in the annulus, the wire rod is only suitable for a hollow scene below the annulus (the wire rod is left in a hollow area below the annulus), but most of the outstanding cases exist, the annulus and the nucleus below are integrated, and the wire rod cannot anchor the annulus, so that the suture fails.

Disclosure of Invention

The embodiment of the application solves the problems of high operation difficulty, complex device structure, high failure probability and high operation risk in the prior art by providing the full-visualization fiber ring stitching instrument under the endoscope, and achieves the effects of simple operation, simple device structure, low cost and low operation risk.

The embodiment of the application provides a full-visual chemical fiber ring stitching instrument under an endoscope, which comprises a stitching thread and a guiding device, wherein the stitching thread comprises a thread body and a thread bolt;

the wire body is used for pulling the lacerations and knotting;

the thread plug is fixed at one end of the thread body and is used for puncturing the surface layer of the fiber ring and then remaining in the fiber ring;

the wire bolt is provided with a part with a width or a maximum outer diameter larger than the diameter of the puncture point under the action of tensile force, so that the wire bolt cannot pass through the puncture point when the wire body is pulled;

the guiding device comprises a metal catheter for guiding a thread plug of a suture thread into a fibrous ring;

the metal conduit is hollow, and the bottom end is a tip; the tip opening is for passage of a suture.

Further, the wire bolt is a hard rod, and the length of the hard rod is 2-4 times of the diameter.

Further, the wire bolt is a section of hard absorbable wire rod with barbs on the surface.

Further, the diameter of the barbed wire bolt is not smaller than the diameter of the wire body, 2-6 barbs are arranged at the same axial position of the wire, the barbs at the same axial position are uniformly distributed, and the barbs are arranged at a plurality of axial positions of the wire.

Further, the suture line and the thread plug are made of absorbable materials.

Further, the endoscope knot pusher is used for pushing knots tied outside the endoscope to the surface of the fiber ring opening through the endoscopic instrument channel and providing force points for pulling the wire body to tighten the knots; the knot pushing device comprises a push rod and a knot pushing head, the knot pushing head is arc-shaped, the top end of the knot pushing head is provided with a threading hole, and the threading hole is used for a wire body to pass through.

Further, the under-lens line shear comprises a movable head, a fixed head, a shear plate, a tube body, a pull rod and a pulling part.

The fixed head is fixed at one end of the pipe body, the fixed head is sheet-shaped, and the movable head is hinged with one end of the pipe body with the fixed head; the movable head is hinged with a pull rod, and the pull rod extends into the pipe body;

positioning a pulling part at one end of the pipe body far away from the fixed head, wherein the pulling part is driven to rotate by the handle, and the pulling part can rotate to pull the pull rod to drive the movable head to rotate around the hinge point of the movable head and the pipe body;

a shearing plate is fixed at the front end of the fixing head far away from the pipe body; the front end of the movable head, which is far away from the pipe body, is also provided with a cutting plate, and the cutting plate on the movable head can be attached to the inner side surface of the cutting plate on the fixed head when the movable head rotates, so that the wire body is cut off.

Further, the metal conduit is hollow and comprises a straight rod part and a bent rod part;

the axis of the bent rod part is an arc line and is prolonged with the straight rod with the axis being a straight line, and the two inner cavities are communicated;

the bent rod part is used for expanding the operation range, the edge of the fiber ring opening can be sutured by 2-3 mm, the bottom end of the needle head opening of the bent rod part is a needling point, and the distance between the needling point and the axis of the straight rod part is in the range of 3-5 mm.

Further, the wire pushing device also comprises a metal guide rod for pushing the wire plug from the inside of the guide rod, and the diameter of the metal guide rod is smaller than the inner diameter of the metal guide tube.

Further, the metal guide rod for pushing the wire bolt comprises a rod body and a rod handle part;

the rod body is a straight rod; the inner diameter of the rod handle part is larger than that of the cavity of the guide rod in a natural state, so that an operator can hold and push the metal guide rod conveniently, and the wire bolt can be pushed out of the cavity at the tip of the guide rod in a homeopathic manner after pressure is applied, so that the wire bolt is left in the fiber ring, and the rod body is a straight rod; the handle part is larger than the inner diameter of the cavity of the guide rod in a natural state, so that an operator can hold and push the metal guide rod conveniently, and the wire bolt can be pushed out of the lumen at the tip of the guide rod in a homeopathic manner after pressure is applied, so that the wire bolt is reserved in the fiber ring.

One or more technical solutions provided in the embodiments of the present application at least have the following technical effects or advantages: two sutures with a thread bolt are respectively inserted into two sides of an annulus fibrosus, after the outside of a thread body mirror positioned outside the annulus fibrosus is knotted, a knot pusher pushes the thread knot to the surface of the annulus fibrosus from an endoscope instrument channel, after the knot is tightened, the thread body is cut off by under-mirror thread cutting, and the redundant thread body is taken out, so that minimally invasive suturing under the endoscope can be rapidly carried out on the opening of the annulus fibrosus. The device has simple structure, clear steps, convenient operation and obvious effect.

Drawings

FIG. 1 is a schematic diagram of the structure of the present invention;

FIG. 2 is a schematic view of a hard bar structure at the bottom end of a suture;

FIG. 3 is a schematic view of a suturing device with a metal guide for pushing a wire bolt;

fig. 4 is a schematic diagram of the state at the time of stitching.

FIG. 5 is a schematic diagram of a push rod structure;

FIG. 6 is a schematic diagram of a push button head structure;

FIG. 7 is a schematic view of a push rod with an inner notch;

FIG. 8 is a schematic diagram of a push-junction operation;

FIG. 9 is a schematic diagram of a push-junction operation;

FIG. 10 is a schematic view of a wire clipper;

FIG. 11 is a schematic diagram of the overall structure of the wire clipper;

FIG. 12 is a schematic diagram of a complete joint of a wire clipper;

FIG. 13 is a schematic view of the structure of the net-shaped wrapping wire body at the bottom end;

FIG. 14 is a schematic view of the condition of the net-like shape of the spool when not fully deployed within the annulus;

FIG. 15 is a schematic view of the fully deployed state of the tow loop when the tow pin is in mesh form;

FIG. 16 is a schematic diagram of the stitching operation with the spool being a ferromagnetic piece;

FIG. 17 is a schematic view of the shear plate position;

fig. 18 is a schematic view of an intervertebral disc.

In the figure, a metal catheter 100, a straight rod part 110, a bent rod part 120 and a needle opening 121;

suture 200, body 210, peg 220, barb 221;

a metal guide 300, a rod body 310, and a compression part 320;

knot pushing rod 400, knot pushing head 410, threading hole 411, and inner notch 412;

the wire clipper 500, the movable head 510, the fixed head 520, the clipping plate 530, the pipe body 540, the pull rod 550 and the pulling part 560.

Detailed Description

In order that the invention may be readily understood, a more complete description of the invention will be rendered by reference to the appended drawings. The drawings illustrate preferred embodiments of the invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

It will be understood that when an element is referred to as being "fixed to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like are used herein for illustrative purposes only and are not meant to be the only embodiment.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.

The existing suturing devices are overly complex in structure and are very risky to operate upon once a failure has occurred. The existing suturing technical thought is to take the traditional suturing process, namely, a continuous thread is used for suturing the broken opening, and the thought is to make the designed suturing device difficult to use, complex in operation, complex in structure, high in cost and high in risk. The invention divides the sewing process into two lines to complete. 1-18, the suture is prevented from being pulled out by a bolt which can be anchored in the whole layer of the fibrous ring, and the suture for the laceration is realized by pulling and knotting two sutures anchored at both sides of the laceration.

Example 1

As shown in fig. 1, 2 and 4, an endoscopic full-visualization fiber ring suture device comprises a suture thread 200 and a guiding device, wherein the suture thread 200 comprises a thread body 210 and a thread plug 220;

the wire body 210 is used for pulling the lacerations and knotting; the body is a common suture, although subsequent surgical removal is not possible with endoscopic procedures, so absorbable wires are preferred.

The thread plug 220 is fixed at one end of the thread body 210, and the thread plug 220 is used for puncturing the fiber ring and then remaining in the fiber ring; the wire bolt 220 is made of medical material absorbable by the human body;

the wire bolt is provided with barbs, and is automatically anchored in the fiber ring after being acted by tension, and the width or the maximum outer diameter of the wire bolt is larger than the part with the diameter of the puncture point, so that the wire bolt can not be pulled out of the puncture point when the wire body is pulled; the wire bolt is used for providing a fixing and acting point for the stay wire when pulling force is applied to two sides of the break, so that fiber rings on two sides of the break can be tightly closed after the wire body 210 is pulled and knotted, and further healing in one period is facilitated.

The guiding means comprise a metallic catheter 100 penetrating for pushing the wire plug, for guiding the wire plug of the suture into the annulus fibrosus;

the metal guide tube 100 for pushing the wire bolt is hollow and is provided with a tip at the bottom end; the tip opening is for passage of a suture. The metal catheter for pushing the wire bolt is required to be capable of being inserted into the break from the instrument channel of the endoscope, and the length and the outer diameter are proper.

When the suture is used, the suture can be preset in the metal catheter 100 for pushing the wire plug, the tip of the metal catheter 100 is used for piercing the whole fibrous ring, at the moment, if the suture is hard, the suture can bear axial pressure, the cutting deformation is not large, the wire plug can directly enter the fibrous ring through the tip opening of the metal catheter 100, and the maximum outer diameter of the wire plug is not larger than the diameter of the tip opening.

In addition, the wire plug may be loaded with drugs such as growth factors, antibiotics, etc. that aid in healing the lacerations, preventing infection. The mode of loading the medicine can be direct physical press-fit on the surface of the suppository, or can be adding a slow-release growth factor or antibiotic during the processing of the suppository.

In a second embodiment, as shown in fig. 2, the wire bolt 210 is a hard rod, and the length of the hard rod is 2-4 times the diameter. There are many possible implementations of the structure of the wire bolt, when the wire bolt is a hard rod, the wire body is fixedly connected to the middle part of the hard rod, and after the wire bolt enters the fiber ring, the hard rod is transversely arranged in the hollow part of the deep part of the pierced fiber ring when the wire bolt is pulled outwards, so that the wire body is prevented from moving outwards.

In a third embodiment, as shown in fig. 1, the wire peg 210 is a length of barbed wire.

The diameter of the barbed wire is not smaller than the diameter of the wire body, 2-6 barbs are arranged at the same axial position of the wire, the barbs at the same axial position are uniformly distributed, the barbs are arranged at a plurality of axial positions of the wire, and the barbs at the adjacent axial positions are staggered in the circumferential direction. This way penetration into the annulus is facilitated. In this way the diameter of the portion of the plug other than the barb is preferably greater than the portion of the body.

In a fourth embodiment, as shown in fig. 1 and 3, the metal catheter 100 includes a straight rod portion 110 and a bent rod portion 120;

the axis of the bent rod part 120 is an arc line and is fixed at the bottom end of the straight rod 110 with a straight axis, and the two cavities are communicated;

the curved rod 120 is used for expanding the operation range, the bottom end of the needle opening 121 of the curved rod 120 is a needling point, and the distance between the needling point and the axis of the straight rod 110 is in the range of 3-5 mm. The main function of the bent rod 120 is to expand the operating range, and the opening diameter of the bottom end opening of the bent rod is larger, so that the wire bolt can be conveniently penetrated out.

In the fifth embodiment, as shown in fig. 3, the wire feeder further comprises a metal guide rod 300 for pushing the wire feeder, wherein the metal guide rod 300 for pushing the wire feeder is used for pushing the wire feeder, and the diameter of the metal guide rod 300 for pushing the wire feeder is smaller than the inner diameter of the cavity of the metal guide tube 100 for piercing the wire feeder.

The metal guide 300 for pushing the wire bolt includes a rod body 310 and a rod handle 320;

the rod body 310 is a straight rod; the stem 320 is not smaller than the inner diameter of the cavity of the metal catheter 100 for pushing the wire bolt in a natural state, so that an operator can hold and push the metal guide rod conveniently, the metal guide rod for pushing the wire bolt is a thin rod, and the metal guide rod of the straight rod can push the wire bolt out of the metal catheter 100 in a homeopathic manner after the stem is pressed, so that the wire bolt is left in the fiber ring.

Example six

13-15, the wire bolt 220 is unfolded to be round, rectangular or polygonal with more than four sides, the unfolded area is 0.5-1 square cm, and the wire body 210 is fixed with the center of the wire bolt;

the process of manufacturing the wire peg 220 is as follows; the wire bolt is unfolded to be net-shaped and is woven from the same material as the wire body 210;

step one, soaking a wire bolt in physiological saline liquid containing slow-release nutritional factors;

step two, doubling up the wire bolt 220, including turning the wire bolt to the bottom end of the wire body 210, and then rotating the wire bolt to a rod shape in one direction (clockwise or anticlockwise); or one side of the wire 220 is first rolled inwardly toward the side far from the wire body 210, then the opposite side is folded inwardly, and then the rolled side is wrapped in a rod shape, as shown in fig. 2;

step three, a step of performing; the plug 220 is vacuum freeze-dried to set the plug 220.

In this way, the plug 220 can contain more growth factors, and at the same time, the plug 220 can be unfolded after being diluted by liquid entering the fiber ring, so that more stable positioning of the wire body is formed, which is beneficial to pulling the break in the subsequent knotting and preventing the plug 220 from being pulled out of the fiber ring.

Example seven

As in the illustrated procedure, two sutures 200 penetrating the annulus fibrosus eventually align and secure the lacerations by tying knots, but the procedure is endoscopic (spinal endoscope) and the knots are very difficult. Thus, an under-the-lens knot pusher 400 is added for pushing the knot tied outside the endoscope to the point of the fibrous ring opening and providing a point of application for pulling to align and position the wound; the knot pusher 400 includes a knot pushing head 410, the top end of the knot pushing head 410 is provided with a threading hole 411, and the threading hole 411 is used for the thread 210 to pass through.

When in use, one wire body 210 passes through the threading hole 411, the knot pushing head 410 is extended into an endoscope (spinal endoscope), the tied knot is pushed to the break, the wire body 210 is pulled to align the break, the second knot is tied again by the same operation, and the fixation of the two wires can be completed, so that the wound is aligned and positioned.

The end surface of the contact wire body 210 of the pushing knot 410 may be provided with an arc surface 412 for pushing the knot, so as to reduce the contact surface, concentrate the force and ensure that the knot is tied more firmly.

Example eight

As shown in fig. 10 to 12, after finishing, in order to facilitate cutting off the excessive wire, a wire clipper 500 practical under an endoscope (spinal endoscope) is designed, which includes a movable head 510, a fixed head 520, a clipping plate 530, a tube body 540, a pull rod 550, and a pulling part 560.

The fixed head 520 is fixed at one end of the pipe body 540, the fixed head 520 is sheet-shaped, and the movable head 510 is hinged with one end of the pipe body 540 with the fixed head 520; the movable head 510 is hinged with a pull rod 550, and the pull rod 550 extends into the pipe body 540;

a pulling part 560 is positioned at one end of the pipe body 540 far away from the fixed head 520, the pulling part 560 is driven to rotate by a handle, and the pulling part 560 can rotate to pull the pull rod 520 to drive the movable head 510 to rotate around the hinge point of the movable head 510 and the pipe body 540;

the front end of the fixing head 520 far away from the tube body 540 is fixedly provided with a shearing plate 530; the front end of the movable head 510 far away from the pipe body 540 is also provided with a shearing plate 530, and the shearing plate 530 on the movable head 510 can be attached to the inner side surface of the shearing plate 530 on the fixed head 520 when the movable head 510 rotates, so that the wire body 210 is sheared.

The pulling part 560 may be two wheels or rods, the pull rod passes through a gap between the two wheels or rods, and the two wheels or rollers are abutted against the pull rod, so that when one handle is rotated to rotate one wheel or roller, the pull rod 550 can be pulled, and the purpose of rotating the movable head 510 is achieved.

The purpose of the shear plate 530 is to enable shearing at a proper position when the wire body 210 is pulled to intersect the surface of the annulus fibrosus.

Example nine

Yet another way of suturing is shown in fig. 16, namely that the bolt 220 is a ferromagnetic piece (which may be steel, iron, etc., preferably spherical); after the stem 100 is guided into the annulus fibrosus, the magnetic suction rod 600 is extended into the annulus fibrosus from the opening;

the magnetic attraction lever 600 includes an outer lever 610, an inner lever 620, a magnet 630;

the outer rod 610 is a non-magnetic rod with an arc bottom end, and can be a plastic rod;

the inner rod 620 is a magnetically conductive metal rod, and is located in the outer rod 610, and the bottom end of the inner rod 620 extends out from the bottom end of the outer rod 610 to form a magnetically conductive metal tip;

the magnet 630 is located at the top end of the outer rod 610 and contacts the inner rod 620, so that the metal tip at the bottom end of the inner rod 620 can attract the wire bolt 220;

the bottom end of the rod body 310 is provided with a magnet for sucking the wire bolt 220 and pulling the wire bolt out of the metal guide tube 100 which is used for pushing the wire bolt through penetration;

the knot-pushing bar 400 of the seventh embodiment can be used to assist in knot tying after pulling out.

The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The endoscopic full-visual fiber ring suture device comprises a suture thread and a guiding device, and is characterized in that the suture thread comprises a thread body and a thread plug;

the wire body is used for pulling the fiber ring opening and knotting;

the wire bolt is provided with a part with the width or the maximum outer diameter larger than the diameter of the puncture point under the action of tensile force, so that the wire bolt cannot be pulled out from the puncture point when the wire body is pulled;

the metal conduit is hollow, and the bottom end is a tip; the tip opening for passage of a suture;

the metal catheter is slender, has the diameter of 3.5-4.0 mm and is smaller than the instrument channel of the endoscope, and the full-visual fiber ring suture can be realized under the monitoring of the endoscope;

the wire bolt is a section of hard absorbable wire rod with barbs on the surface;

the diameter of the wire bolt with the barbs is not smaller than the diameter of the wire body, 2-6 barbs are arranged at the same axial position of the wire, the barbs at the same axial position are uniformly distributed, and the barbs are arranged at a plurality of axial positions of the wire;

the suture line and the thread plug are made of absorbable materials;

the wire bolt is unfolded into a circle, a rectangle or a polygon with more than four sides, the unfolded area is 0.5-1 square centimeter, and the wire body is fixed with the center of the wire bolt; the manufacturing process of the wire bolt is as follows; the wire bolt is unfolded into a net shape and is woven by the same material as the wire body; step one, soaking a wire bolt in physiological saline liquid containing slow-release nutritional factors; folding the wire bolt in half, namely, towards the bottom end of the wire body, and then rotating the wire bolt in one direction to form a rod shape; or one side of the wire bolt is inwards rolled towards one side far away from the wire body, the opposite side is inwards folded, and then the rolled side is wrapped into a rod shape; vacuum freeze drying the wire bolt to fix the wire bolt; the thread plug can contain more growth factors, and can be unfolded under the dilution of liquid after entering the fiber loop, so that more stable positioning of the thread body is formed, the pulling break in the follow-up knotting is facilitated, and the thread plug is prevented from being pulled out of the fiber loop.

2. The endoscopic total visualization fiber loop stapler according to claim 1, wherein the wire pin is a hard rod having a length 2-4 times the diameter.

3. The endoscopic fully visualized fiber ring stapler according to any one of claims 1-2, further comprising an under-the-lens knot pusher for pushing an externally-endoscopic knot through the endoscopic instrument channel to the surface of the fiber ring breach and providing a point of application for pulling the wire body to tighten the knot; the knot pushing device comprises a push rod and a knot pushing head, the knot pushing head is arc-shaped, the top end of the knot pushing head is provided with a threading hole, and the threading hole is used for a wire body to pass through.

4. The endoscopic fully-visualized fiber ring stapler according to any one of claims 1-2, further comprising an under-scope thread cutter comprising a movable head, a fixed head, a cutting plate, a tube body, a pull rod, a pulling portion;

5. The endoscopic fully visualized fiber ring stapler according to any one of claims 1-2, wherein said metal catheter is hollow, comprising a straight shaft portion and a bent shaft portion;

6. The endoscopic fully-visualized fiber ring stapler according to any one of claims 1 to 2, further comprising a metal guide rod pushing the wire bolt for pushing the wire bolt, the metal guide rod having a diameter smaller than an inner diameter of the metal guide tube.

7. The endoscopic total visualization fiber loop stapler according to claim 1, wherein said metal guide rod comprises a rod body and a rod handle portion;

the rod body is a straight rod; the handle part is larger than the inner diameter of the cavity of the guide rod in a natural state, so that an operator can hold and push the metal guide rod conveniently, the wire bolt can be ejected out of the cavity at the tip of the guide rod in a homeopathic manner after pressure is applied, and the wire bolt is pushed and left in the fiber ring.