CN215306369U

CN215306369U - Anchoring needle type suture clip device for suture under digestive endoscopy

Info

Publication number: CN215306369U
Application number: CN202121288152.8U
Authority: CN
Inventors: 刘冰熔; 刘丹; 赵丽霞; 时百明; 孔令建; 李德亮
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-06-09
Filing date: 2021-06-09
Publication date: 2021-12-28
Anticipated expiration: 2031-06-09

Abstract

The utility model relates to the field of medical instruments, in particular to an anchoring needle type suture clip device for suturing under a digestive endoscope, which comprises a clip head and a clip body, wherein the clip body comprises a hose, a core rod and a detachable sleeve, and the rear end of the detachable sleeve is connected with the front end of the hose; the chuck comprises an elastic suture clip and an anchoring needle, and the connecting part of two clamping arms of the suture clip is inserted into an inner hole of the detachable sleeve; the core rod penetrates through the hose, and the front end of the core rod is detachably connected with the connecting parts of the two clamping arms of the sewing clamp; the anchor needle is fixed at the front end of first arm lock, is located the inboard of first arm lock, and the needle point is inside. The utility model has simple operation and high success rate and stitching efficiency.

Description

Anchoring needle type suture clip device for suture under digestive endoscopy

Technical Field

The utility model relates to the field of medical instruments, in particular to an anchoring needle type suture clip device for suturing under a digestive endoscope.

Background

In recent years, the application of full-thickness resection under a digestive endoscope is more and more extensive, so that the problem of suturing a huge wound surface after operation becomes a huge challenge for an endoscopist. The existing endoscopic suturing instrument can not meet the requirements of clinicians in the aspect of treating large wound surface suturing.

The utility model with the patent number of CN201420459339.3 discloses a titanium clip structure for clamping tissues, which comprises a clamping device and a releasing device, wherein the clamping device comprises a clamping arm, a small steel sleeve, a plastic transmission shaft and a plastic positioning sleeve; the front end of the plastic positioning sleeve is butted and fixed with the rear end of the small steel sleeve, the middle part of the plastic positioning sleeve protrudes outwards to form an inverted buckle, and a cavity avoiding cavity is formed in the plastic positioning sleeve at the position corresponding to the inverted buckle; the plastic transmission shaft penetrates through the plastic positioning sleeve, the release device comprises a pull shaft and a large steel sleeve, a limiting cavity which is matched with the shape and size of the back-off is arranged on the inner wall of the front end of the large steel sleeve, a abdicating cavity is arranged on the inner wall of the rear end of the large steel sleeve, the pull shaft penetrates through the large steel sleeve in a back-and-forth moving mode, a pull ring is arranged at the front end of the pull shaft, and the pull ring is connected with the plastic transmission shaft through an abdicating hole. The utility model discloses a problem that clamping device and release are difficult for separating has been solved effectively.

The utility model with the application number of CN201710650190.5 discloses a needle holding forceps for minimally invasive surgery under a digestive endoscope, which comprises a forceps head, a forceps body and an operating handle, wherein the rear end of the forceps head is connected with one end of the forceps body, the other end of the forceps body is connected with the front end of the operating handle, and the operating handle controls the forceps head to clamp and release a suture needle and a suture thread through the forceps body; the binding clip comprises a pair of binding clip arms, a transmission mechanism, a binding clip main body and a fixed rotating mechanism; the clamp body comprises an inner core, a spring tube sleeved on the inner core and an insulating layer sleeved on the spring tube; the control handle comprises a handle body, a slip ring assembly and a locking assembly. The needle holder is used for minimally invasive surgery under a digestive endoscope, the front end of the needle holder can freely rotate and freely open and close, and a suture needle can be clamped and locked. The utility model needs complex internal and external threading operation, has great difficulty in the upper hand and low success rate and efficiency.

Disclosure of Invention

In order to solve the above problems, the present invention aims to provide an anchor pin type suture clip device for suturing under a digestive endoscope, which is easy and convenient to operate and has high success rate and suture efficiency.

The purpose of the utility model is realized by the following technical scheme:

the utility model provides an anchoring needle type suture clip device for suturing under a digestive endoscope, which comprises a clip head and a clip body, wherein the clip body comprises a hose and a core rod, the clip body comprises a detachable sleeve, and the rear end of the detachable sleeve is connected with the front end of the hose; the chuck comprises an elastic suture clip and an anchoring needle, and the connecting part of two clamping arms of the suture clip is inserted into an inner hole of the detachable sleeve; the core rod penetrates through the hose, and the front end of the core rod is detachably connected with the connecting parts of the two clamping arms of the sewing clamp; the anchor needle is fixed at the front end of first arm lock, is located the inboard of first arm lock, and the needle point is inside.

Further, the front end of the second clamping arm comprises a pointed end, and the pointed end of the pointed end faces inwards; the anchoring needle is orthogonal to the first clamping arm, and when the suture clamp is closed, the needle point of the anchoring needle is positioned behind the pointed end.

Further, the anchoring needle is arc-shaped, the needle body comprises a plurality of barbs, and the plurality of barbs are separately arranged on the inner arc side and the outer arc side of the anchoring needle body.

Furthermore, the connecting part of the two clamping arms of the sewing clamp is U-shaped, and the front end of the core rod is fixed at the bottom of the U-shaped connecting part.

Furthermore, the front part of the clamping arm is a straight line section, and the outer side of the straight line section comprises a reinforcing rib along the length direction of the straight line section; the rear portion of arm lock is elastic arc section, and the rear end of arc section is connected with the connecting portion of U font.

Furthermore, the front part of the inner hole of the detachable sleeve is a flat long hole, and the flat long hole is opened at the front end of the detachable sleeve; the width of the U-shaped connecting part is matched with that of the flat long hole; when the suture clip opens, the U-shaped connecting part is positioned in the flat long hole; when the suture clip is closed, the core rod pulls the clip arm part into the flat long hole.

Further, the suture clip is a flat strip-shaped elastic piece.

Furthermore, the clamp body comprises a connector, and the rear end of the detachable sleeve is connected with the front end of the hose through the connector.

Further, when the clamping head is closed, the straight line sections of the two clamping arms of the suture clamp are parallel.

Further, the endoscope comprises an endoscope tube and a control handle, wherein the endoscope tube comprises an endoscope channel; the clip body passes through an endoscope channel of the digestive endoscope tube, the rear ends of the hose and the core bar are respectively connected with the control handle, and the clip head is exposed outside the front end of the digestive endoscope tube.

The anchoring needle type suture clip device for suturing under the digestive endoscope adopts the detachable suture clip for clipping the tissues to be sutured on the two sides, and the tissues are kept in the body after being detached, so that the wound edges of the two tissues can be jointed and healed.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the utility model and together with the description serve to explain the utility model without limiting the utility model. In the drawings:

FIG. 1 is a front view of an anchoring needle suture clip device according to an embodiment of the present invention;

FIG. 2 is a perspective view of a cartridge and cartridge body according to an embodiment of the present invention;

FIG. 3 is a front view of a cartridge and cartridge body according to an embodiment of the utility model;

FIG. 4 is a perspective view of a cartridge and cartridge body according to an embodiment of the present invention;

FIG. 5 is a perspective view of a chuck in accordance with an embodiment of the present invention;

FIG. 6 is a perspective view of a polish rod anchoring needle in accordance with an embodiment of the present invention;

FIG. 7 is a perspective view of an anchor needle having a barb on the shaft of an embodiment of the present invention;

FIG. 8 is a schematic view of the anchoring needle-type suture clip device of the embodiment of the present invention in step 1;

FIG. 9 is a schematic view of the anchoring needle-type suture clip device of the embodiment of the present invention in working step 2;

FIG. 10 is a schematic view of operation 3 of the anchoring needle-type suture clip device according to the embodiment of the present invention;

FIG. 11 is a schematic view of the anchoring needle-type suture clip device of the embodiment of the present invention in operation step 4;

FIG. 12 is a schematic view of the anchoring needle-type suture clip device of the embodiment of the present invention in step 5;

FIG. 13 is a schematic view of the operation 6 of the anchoring needle-type suture clip device according to the embodiment of the present invention.

Detailed Description

In order to make the technical solutions of the present invention better understood, 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 only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The structure and principle of the anchoring needle-type suture clip device according to the embodiment of the present invention are shown in fig. 1 to 13, a digestive endoscope tube 10, a manipulating handle (not shown in the drawings, and the structure thereof is shown in the utility model with the application number of CN 201710650190.5), a cartridge (suture clip) 20 and a clip body 30.

The body 30 comprises a hose 31, a flexible core rod (push-pull rod) 32, a connector 33 and a detachable sleeve 34. The rear end of the detachable sleeve 34 is connected to the front end of the hose 31 by means of a coupling 33.

The cartridge 20 includes a resilient suture clip 20A and an anchoring needle 25. The anchoring needle 25 has an arc shape, and the body of the anchoring needle 25 may be smooth as shown in fig. 6, or may have a plurality of barbs 251 as shown in fig. 7, and the plurality of barbs 251 are separately disposed on the inner and outer arc sides of the body of the anchoring needle 25.

The suture clip 20A is a flat elastic piece, and includes two clip arms 21 and a U-shaped connecting portion 22, and the U-shaped connecting portion 22 connects the two clip arms 21.

The front of the clip arm 21 is a straight section 211. An outward convex reinforcing rib 213 is arranged on the outer side of the straight line section 211 along the length direction of the straight line section 211. The rear part of the clamping arm 21 is an elastic arc-shaped section 212, and the rear end of the arc-shaped section 212 of the clamping arm 21 is connected with the front end of the U-shaped connecting part 22.

The anchoring needle 25 is fixed at the front end of the upper clamping arm 21A and is positioned at the inner side of the upper clamping arm 21A, the anchoring needle 25 is orthogonal to the upper clamping arm 21A, and the needle point of the anchoring needle 25 faces inwards.

The front end of lower arm 21B has a tip 214, the tip of tip 214 facing inwardly. When the suture clip 20A is closed, the tip of the anchoring needle 25 is positioned behind the pointed tip 214.

The front end of the core bar 32 is fixed to the bottom of the U-shaped connecting part 22.

The inner hole of the detachable sleeve 34 is through, the front part is a flat long hole (guide groove) 341, and the flat long hole 341 is provided with an opening at the front end of the detachable sleeve 34. The width of the U-shaped connecting portion 22 is adapted to the width of the oblong hole 341.

The connecting portion 22 of the clip arm of the suture clip 20A is inserted into the oblong hole 341 of the detachable sleeve 34. The core rod 32 passes through the hose 31, and the front end is detachably connected with the bottom of the U-shaped connecting part 22.

When the suture clip 20A is opened, the U-shaped connecting portion 22 is positioned in the elongated hole 341. When the suture clip 20A is closed, the core rod 32 pulls the clip arm 21 partially into the flat slot 341.

The digestive endoscope tube 10 is provided with two parallel axial channels, one of which is an endoscope channel, and the front end of the digestive endoscope tube 10 is controlled by a digestive endoscope to adjust the bending direction.

The clamp body 30 passes through an endoscope channel of the digestive endoscope tube 10, the rear ends of the hose 31 and the core bar 32 are respectively connected with the control handle, and the clamp head 20 is exposed outside the front end of the digestive endoscope tube 10.

The anchoring needle type suture clip device is mainly used for quickly suturing tissues in vivo under a digestive endoscope, the front end of a hose 31 of the anchoring needle type suture clip device is fixedly connected with a connector 33, the front end of the connector 33 is connected with a detachable sleeve 34, the front end face of the detachable sleeve 34 is provided with a flat long hole (guide groove) 341, the flat long hole (guide groove) 341 has a certain depth towards the inside, the section of the flat long hole (guide groove) 341 is a rectangular groove, and a chuck (suture clip) 20 is inserted into the flat long hole (guide groove) 341 of the detachable sleeve 34. Chuck (sew up and press from both sides) 20 wholly is the open structure of V type under no exogenic action, wholly is sheet structure, and the root U-shaped section at chuck (sew up and press from both sides) 20 is convex end of buckling, and chuck (sew up and press from both sides) 20 is elastic deformation section in the structure section of the both sides outer end of V type section, and the structure section in the elastic deformation section outside is for strengthening the extension section, is strengthening the extension section outside the structure section and is sewing up the section.

The elastic deformation section of the cartridge (suture clip) 20 has elastic deformation characteristics, when no external force is applied, the two clamping arms 21 of the cartridge (suture clip) 20 are opened to both sides to a proper angle under the elastic action of the elastic deformation section, when the two clamping arms 21 of the cartridge (suture clip) 20 are stressed inwards, the two clamping arms 21 of the cartridge (suture clip) 20 are bent inwards from an open state to a parallel state. The upper clamping arm of the reinforced extension section is provided with a reinforcing rib 213, the reinforcing rib 213 is integrally arched on the upper outer side surface of the clamping arm towards an upper arc, the reinforcing rib 213 has a certain length in the moving direction of the clamping arm, and the reinforcing rib 213 is used for prolonging the length of the clamping arm of the chuck (suture clip) 20 and increasing the opening degree of the front end of the chuck (suture clip) 20. The suture section is positioned at two ends of the chuck (suture clamp) 20, the inner side of the suture section of the upper clamping arm 21A is fixedly connected with an anchoring needle 25, an anchoring structure is adopted, the whole body of the anchoring needle 25 is arc-shaped, the end head of the lower end is a conical tip, and the arc radius of the anchoring needle 25 is the suture clamping arm, so that the whole radian completely conforms to the radian of a rotating circumferential track when the clamping arm is opened and closed, and the needle can perform circular arc smooth motion (without any swing) along the radian of the needle body when the clamping arm is opened.

A conical tip 214 is integrally designed at the end of the suture section of the lower clip arm 21B of the cartridge (suture clip) 20, the tip 214 is bent towards an inner side of the suture section by about 90 degrees, and the suture section of the lower clip arm 21B is slightly longer than that of the suture section of the upper clip arm 21A. As shown in FIGS. 3 and 4, when the two arms 21 of the cartridge (suture clip) 20 are forced inwardly so that the two arms 21 are parallel, the anchoring needle 25 of the upper arm 21A is offset from the prong 214 of the lower arm 21B, with the anchoring needle 25 inside and the bent prong 214 outside. The length of the anchoring needle 25 is slightly shorter than the distance between the two clamping arms 21 of the anchoring needle 25 in the parallel state. When the suture clip 20 is closed and the two clip arms 21 are parallel, the front portion of the anchoring needle type suture clip device of the embodiment of the utility model can be conveniently accessed through the biopsy hole.

When the opening of the chuck (suture clip) 20 needs to be controlled, the chuck (suture clip) 20 is driven to move axially back and forth through the core rod (push-pull rod) 32, the chuck (suture clip) 20 is restrained to be opened and closed inside the flat long hole (guide groove) 341 of the detachable sleeve 34, and meanwhile, the chuck (suture clip) 20 can be prevented from being inclined inside the flat long hole (guide groove) 341 when the chuck (suture clip) 20 moves back and forth. When the cartridge (suture clip) 20 moves toward the elongated hole (guide groove) 341, the elastic deformation section retracts into the elongated hole (guide groove) 341, and the cartridge (suture clip) 20 is closed to a parallel state.

The device is mainly used for effectively suturing a large wound or a high-tension wound under a digestive endoscope. The basic structure of the device is similar to that of the existing endoscopic metal suture clip capable of being opened and closed repeatedly. The device is characterized in that the original short and less sharp bent teeth are replaced by a slender and sharp anchoring needle at the front end of one side clamping arm of the suture clip. The anchoring needle has the same shape as a surgical suture needle, the needle body of the anchoring needle is arc-shaped, and the arc radius of the suture needle is the suture clamping arm, so that the whole radian of the anchoring needle completely conforms to the radian of a rotating circumferential track when the anchoring needle is opened and closed, and the anchoring needle can perform arc smooth motion (without any swing) along the radian of the needle body when the clamping arm is opened and closed. The length of the anchoring needle is equal to the distance (about 3 mm) of a gap between the forceps arms at the two sides of the conventional metal suture clip, so that the suture needle can be completely and smoothly delivered to an operation area through an endoscopic biopsy channel in a closed state.

When the anchoring needle type suture clip device is required to be used for carrying out tissue suture in a patient under an endoscope, the suture device is arranged in a channel cavity of an endoscope tube 10 and is conveyed to a position of a tissue to be sutured in the body under the action of the endoscope tube 10, and when the tissue 1 and the tissue 2 are required to be sutured, the suture operation needs the following steps:

1. as shown in fig. 8, a certain width is formed between the wound edges of the tissues 1 and 2, and by operating the digestive endoscope, the front end of the digestive endoscope tube 10 rotates upward by a certain angle, so that the mouth of the clamping head (suture clip) 20 faces the tissues 1, and at this time, the two clamping arms of the clamping head (suture clip) 20 open.

2. As shown in FIG. 9, when the control handle (not shown) is operated, the flexible tube 31 moves forward a certain distance relative to the digestive endoscope 10, the core rod (push-pull rod) 32 is pulled backward, and the cartridge (suture clip) 20 is contracted to a closed state under the guiding contraction action of the oblong hole (guide slot) 341, in which the anchoring needle 25 of the upper clip arm 21A pierces through the inner and outer side surfaces of the tissue 1 to engage with the tip 214 at the front end of the lower clip arm 21B to clamp the tissue 1.

3. As shown in fig. 10, after the anchoring needle 25 of the clamping arm 21A of the cartridge (suture clip) 20 penetrates through the tissue, the cartridge (suture clip) 20 is operated under the endoscope to drive the tissue 1 to the wound edge of the tissue 2, the cartridge (suture clip) 20 is opened, the anchoring needle 25 hooks the tissue 1 so as not to slip off, and the tissue 1 is always hung on the anchoring needle 25.

4. As shown in FIG. 11, by manipulating the digestive endoscope, the front end of the digestive endoscope tube 10 is rotated downward at an angle such that the jaws of the cartridge (suture clip) 20 face the tissue 2. The clip head (suture clip) 20 is always hooked on the tissue 1 by the anchor needle 25.

5. As shown in fig. 12, the control handle (not shown) is operated, the jaw opening of the cartridge (suture clip) 20 is controlled to close through the core rod (push-pull rod) 32, during the closing process, the upper and lower jaw arms clamp the tissue 1 and simultaneously clamp the tissue 2, the anchoring needle 25 penetrates through the outer surface and the inner surface of the tissue 2 during the clamping process, at this time, the anchoring needle 25 jointly penetrates through the tissue 1 and the tissue 2, after the suture clip 20 is closed, the two jaw arms 21 are parallel, at this time, the wound edges of the tissue 1 and the tissue 2 are in a state of being clamped and attached by the cartridge (suture clip) 20, and tissues on both sides of the wound are completely aligned together.

6. As shown in fig. 13, the detachable sleeve 34 is controlled to be detached from the flexible tube 31 and the connector 33, so that the detachable sleeve 34 and the clamping head (suture clip) 20 are clamped synchronously and remain at the wound edge where the tissues 1 and 2 are clamped and attached, and the tissues 1 and 2 are convenient to heal. (the separation structure of the detachable sleeve 34 and the connector 33 and the detachable connection structure of the chuck 20 and the core rod 32 can be referred to utility model with patent number CN 201420459339.3)

The anchoring needle 25 shown in fig. 6 can be replaced by the anchoring needle 25 shown in fig. 7, the anchoring needle 25 shown in fig. 6 is provided with barbs 251 at the inner and outer arc sides of the bending trend, the barbs 251 are integrally and fixedly arranged, the inner and outer arc sides are respectively provided with two sets of barbs 251 in the embodiment, the two sets of barbs 251 are respectively distributed in a staggered manner, the tips of the barbs 251 incline towards the root of the anchoring needle 25, the anchoring needle 252 using the barbs 251 can normally penetrate through the puncture tissue 1 and can be pulled to the position of the tissue 2, the barbs 251 can effectively prevent the tissue 1 from being separated from the anchoring needle 25, the stability and the success rate of the operation are increased, the operation efficiency is improved, and the operation time is shortened.

The above embodiment of the utility model has the following beneficial effects:

1. the anchoring needle is fixed on the inner side of the front end of the clamping arm on one side of the suture clamp and has the effect that the anchoring needle can hook tissue on one side of a wound after the first clamping and can be pulled to the tissue on the other side of the wound for effective suture, so that the major clinical problem of suturing under a huge wound endoscope is fundamentally solved. Compared with the existing sewing device, the sewing device greatly improves the stability and the success rate of the sewing technology.

2. The radian of the sewing needle is completely coincided with the movement radians of the two side arms of the sewing clamp, so that the sewing needle can penetrate through tissues with the minimum resistance and the most smooth line, and the stability and the success rate of the sewing needle during the penetration are ensured.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. An anchoring needle type suture clip device for suturing under a digestive endoscope comprises a clip head and a clip body, wherein the clip body comprises a hose and a core bar, and is characterized in that the clip body comprises a detachable sleeve, and the rear end of the detachable sleeve is connected with the front end of the hose; the chuck comprises an elastic suture clip and an anchoring needle, and the connecting part of two clamping arms of the suture clip is inserted into an inner hole of the detachable sleeve; the core rod penetrates through the hose, and the front end of the core rod is detachably connected with the connecting parts of the two clamping arms of the sewing clamp; the anchor needle is fixed at the front end of first arm lock, is located the inboard of first arm lock, and the needle point is inside.

2. The anchoring needle-type suture clip device of claim 1, wherein the front end of the second clip arm includes a pointed tip, the pointed tip of the pointed tip facing inward; the anchoring needle is orthogonal to the first clamping arm, and when the suture clamp is closed, the needle point of the anchoring needle is positioned behind the pointed end.

3. The anchoring needle-type suture clip device of claim 1, wherein the anchoring needle has an arc shape, and the needle body includes a plurality of barbs, the plurality of barbs being separately disposed on inner and outer arc sides of the needle body of the anchoring needle.

4. The anchoring needle-type suture clip device according to claim 1, wherein the two clip arms of the suture clip have a V-shaped normal angle, the connecting portion has a U-shape, and the front end of the core rod is fixed to the bottom of the U-shaped connecting portion.

5. The anchoring needle-type suture clip device according to claim 4, wherein the front portion of the clip arm is a straight line segment, and the outer side of the straight line segment includes a reinforcing rib along the length direction of the straight line segment; the rear portion of arm lock is elastic arc section, and the rear end of arc section is connected with the connecting portion of U font.

6. The anchoring needlesuture clip device of claim 4, wherein the front portion of the internal bore of the detachable sleeve is a prolate hole that opens at the front end of the detachable sleeve; the width of the U-shaped connecting part is matched with that of the flat long hole; when the suture clip opens, the U-shaped connecting part is positioned in the flat long hole; when the suture clip is closed, the core rod pulls the clip arm part into the flat long hole.

7. The anchoring needle-type suture clip device of claim 1, wherein the suture clip is a flat strip-shaped elastic piece.

8. The anchoring needlesuture clip device of claim 1, in which the clip body includes a connector by which the rear end of the detachable sleeve is connected to the front end of the hose.

9. The anchoring needle-type suture clip device of claim 5, wherein the linear sections of the two clip arms of the suture clip are parallel when the clip is closed.

10. The anchoring needle-type suture clip device according to claim 1, comprising an endoscopic digestive tract comprising an endoscopic forceps channel; the clip body passes through an endoscope channel of the digestive endoscope tube, the rear ends of the hose and the core bar are respectively connected with the control handle, and the clip head is exposed outside the front end of the digestive endoscope tube.