A cannula type small gap nerve anastomat with micro hook
By using a cannula-type small-gap nerve anastomosis device with micro-hooks, the micro-hooks are snapped to the surface of the severed nerve and the extended patch is wrapped and fixed, which solves the problem of unstable fixation of traditional nerve cannulas, realizes stable connection and regeneration space of the severed nerve, and reduces the risk of postoperative complications.
CN224484073UActive Publication Date: 2026-07-14FIRST AFFILIATED HOSPITAL OF XINJIANG MEDICAL UNIVERSITY
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- FIRST AFFILIATED HOSPITAL OF XINJIANG MEDICAL UNIVERSITY
- Filing Date
- 2025-04-28
- Publication Date
- 2026-07-14
AI Technical Summary
Technical Problem
Traditional nerve cannulas, when connecting severed nerves, can increase anastomotic tension and cause unstable suture fixation, thus increasing the risk of postoperative complications.
Method used
Design a cannula-type small-interval nerve anastomosis device with micro-hooks, using a nickel-titanium alloy or magnesium alloy micro-hook structure. The micro-hooks are snapped to the surface of the severed nerve, and combined with an extension patch for wrapping and fixation, a stable and sealed regeneration space is formed.
Benefits of technology
It achieves stable fixation of the severed nerve, reduces anastomotic tension, avoids nerve re-severance and postoperative complications, and provides uniform stress and a closed regeneration space.
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Smart Images
Figure CN224484073U_ABST
Abstract
The utility model discloses a kind of sleeve type small gap nerve anastomat with micro hook, including nerve sleeve, the broken nerve is inserted in the nerve sleeve, the upper limit mechanism is provided on the nerve sleeve upper end, the lower limit mechanism is provided on the nerve sleeve lower end;First micro hook and second micro hook at both ends are gathered, so that first micro hook and second micro hook can be pierced into the surface of broken nerve, so as to realize the stable fixation of nerve sleeve, simultaneously, using first micro hook and second micro hook for broken nerve piercing buckle connection, when broken nerve is stretched and separated from nerve sleeve, it will be hindered by first micro hook and second micro hook, using first base connecting line and second base connecting line, to make first micro hook and second micro hook connection as a whole, so that first micro hook and second micro hook are more uniform under stress.
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