Absorbable rib fixing nail

By using rib fixation nails made of absorbable polymer materials, with a bifurcated and reverse toothed structure at the locking part, the problems of unreliable fixation and easy displacement of rib fractures are solved, achieving firm fixation and simplifying surgery. The nail body is biodegradable and absorbable, improving the quality of fracture healing and user experience.

CN224461789UActive Publication Date: 2026-07-07张东升 +2
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Patent Information

Application Number
CN202520665645.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-09
Publication Date
2026-07-07
Estimated Expiration
2035-04-09

AI Technical Summary

Technical Problem

Existing methods for fixing rib fractures have problems such as unreliable fixation, easy displacement, difficult operation, and impact on fracture healing and postoperative pain, and cannot fully meet clinical needs.

Method used

The nail body is made of absorbable polymer material and includes a nail body and symmetrically arranged snap-fit ​​parts at both ends of the nail body. The snap-fit ​​parts have a forked structure and a toothed structure. The nail body is arc-shaped and the snap-fit ​​parts are adapted to the curvature of the ribs. It is made of polylactic acid material and has good biocompatibility and absorbability.

Benefits of technology

It achieves firm fixation of fracture ends, prevents displacement and rotation, simplifies surgical procedures, reduces postoperative pain, does not affect fracture healing, the nail is biodegradable and absorbable without the need for secondary surgery, has no impact on postoperative imaging examinations, and improves user experience.

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Abstract

The utility model discloses an absorbable rib fixing nail which is integrally formed by macromolecule absorbable materials and comprises a nail body part and clamping parts at the two ends of the nail body part, each clamping part is provided with a forked structure with an opening facing the end not connected with the nail body part, and the outer side of at least one branch of each forked structure is provided with an inverted tooth structure. The tail end of the inverted tooth structure is conical or triangular, and the forked width of the forked structure is larger than the width of the nail body part. The nail body is made of absorbable materials, the tail end of the clamping part is forked, the inverted tooth structure can be fixed after being expanded in a medullary cavity to increase friction, the wide conical tail end is easily placed in the medullary cavity and has the anti-rotation and anti-falling effects, fixation is firm, displacement is not prone to occurring, suture reinforcement is not needed, and therefore periosteum blood supply is prevented from being affected, nerves are prevented from being pressed, and after fracture healing, the bone fracture is prevented from being damaged. The fixing nails can be degraded and absorbed and do not need to be taken out through a secondary operation, CT and MRI examination of the chest is not affected after absorption, generalization is better achieved, and the use experience feeling of a user can be better improved.
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