An endoscopic suture assisting device

By designing an endoscopic suturing aid device, the problems of complex suture handling and accidental entry into the abdominal cavity were solved. The device enables convenient adjustment and tightening of the suture, reduces the difficulty of operation and the risk of foreign body residue, and improves suturing stability and biocompatibility.

CN224505486UActive Publication Date: 2026-07-17PEKING UNIVERSITY FIRST HOSPITAL (PEKING UNIVERSITY FIRST CLINICAL MEDICAL COLLEGE)
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
PEKING UNIVERSITY FIRST HOSPITAL (PEKING UNIVERSITY FIRST CLINICAL MEDICAL COLLEGE)
Filing Date
2025-04-23
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing endoscopic suturing devices are complex to operate, difficult to control with sutures, and pose a risk of sutures accidentally entering the abdominal cavity, making them difficult to promote and use in most hospitals.

Method used

An endoscopic suturing aid device was designed, including a suture, a traction suture, and a cannula. The suture is connected to the traction end through a limiting structure. The diameter of the limiting structure is larger than the inner diameter of the cannula. The suture can slide through the limiting structure. The inner diameter of the cannula is more than twice the diameter of the suture and the traction suture. The suture is made of absorbable material and has a barbed structure to enhance stability.

Benefits of technology

It enables convenient adjustment and tightening of sutures, reduces operational complexity, avoids the difficulty of controlling sutures in a free state in the digestive tract, reduces the risk of foreign body residue, lowers costs and process requirements, and improves suture stability and biocompatibility.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a kind of endoscopic suture auxiliary devices, including the suture thread suitable for being connected with closure clamp, the pull wire connected with suture thread, the sleeve pipe of the sleeve of pull wire outer periphery, suture thread forms closure coil, and the limit structure is fixedly arranged on the one end of suture thread, and the other end of suture thread is slidably threaded in limit structure and forms pull end, pull wire is connected on pull end, pull end diameter is less than sleeve inner diameter, and limit structure diameter is greater than sleeve inner diameter.Suture thread on pull end is connected with pull wire, and closure coil can be tightened by pulling pull wire, when multiple closure clamp is clamped on suture thread, the tightening of closure coil can make multiple closure clamp gather together, so as to reach the effect of closing wound margin, simple and quick operation;The diameter of pull end is less than the inner diameter of sleeve pipe, so that the smooth movement of pull end in sleeve pipe can be ensured;Limit structure diameter is greater than the inner diameter of sleeve pipe, so that suture thread can be prevented from being pulled out of sleeve pipe as a whole when controlling suture thread.
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Claims

1. An endoscopic suturing aid device, characterized in that, Includes a suture (1) suitable for connection with a closure clip (8), a traction wire (5) connected to the suture (1), and a sleeve sleeved around the traction wire (5). The suture (1) forms a closed loop (2). A limiting structure is fixedly provided on one end of the suture (1). The other end of the suture (1) slides through the limiting structure to form a traction end (3). The traction wire (5) is connected to the traction end (3). The diameter of the traction end (3) is smaller than the inner diameter of the sleeve, and the diameter of the limiting structure is larger than the inner diameter of the sleeve.

2. The endoscopic stitching aid of claim 1, wherein, The limiting structure is a slip knot (4) formed by the two ends of the suture (1). One end of the suture (1) is fixed to the slip knot (4), and the pulling end (3) of the other end of the suture (1) slides out of the slip knot (4).

3. The endoscopic stitching aid of claim 1, wherein: The suture (1) is a single strand, and the inner diameter of the sleeve is greater than twice the diameter of the suture (1) / traction wire (5).

4. The endoscopic stitching aid of claim 1, wherein, The suture (1) is a double-stranded thread, and the inner diameter of the sleeve is more than twice the diameter of the suture (1) / traction thread (5).

5. The endoscopic stitching aid of Claim 4, wherein: The double-stranded wire is formed by folding a single wire in half. One end of the folded wire has two wire ends, and the other end of the folded wire forms a small coil. The two wire segments between the wire ends and the small coil are parallel to each other and are fixedly connected.

6. The endoscopic stitching aid of claim 1, wherein, The suture (1) is provided with a barb structure.

7. The endoscopic stitching aid of claim 1, wherein, The limiting structure is an elastic fixing block fixed to one end of the suture (1), and the elastic fixing block has a perforation suitable for the traction end (3) to slide through.

8. The endoscopic stitching aid of Claim 2, wherein, The slip knot (4) is any one of the slip knot structures of single slip knot, Collingch knot, reverse riveting knot, and Eugene slip knot.

9. The endoscopic stitching aid of claim 1, wherein, The sleeve includes an inner sheath tube (6) disposed on the outer periphery of the traction line (5) and an outer sheath tube (7) sleeved on the outer periphery of the inner sheath tube (6), wherein the inner diameter of the inner sheath tube (6) is smaller than the diameter of the limiting structure.

10. The endoscopic suturing aid device according to claim 1, characterized in that, The suture (1) is made of absorbable material.