Fracture proximal fixation device for long bone fractures of the lower extremity

CN120360661BActive Publication Date: 2026-05-26BEIJING DADING FRONTIER MEDICAL TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202510508011.9
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2025-04-22
Publication Date
2026-05-26
Estimated Expiration
2045-04-22

AI Technical Summary

Technical Problem

Existing long bone fracture reduction devices have problems such as unstable holding, occupying too much surgical space and disrupting blood supply to the fracture when fixing the proximal end of the fracture. Especially when there is a large misalignment at the fracture ends, the traditional design cannot achieve precise reduction.

Method used

The design employs a combination of positioning and clamping mechanisms, utilizing the first auxiliary Kirschner wire for coarse positioning and the main Kirschner wire for fine positioning. Combined with guide connectors and guide rail mechanisms, it achieves multi-degree-of-freedom adjustment, forming a stable proximal fracture fixation.

Benefits of technology

It improves the accuracy and stability of fracture reduction, reduces the space occupied in the operation, protects the blood supply to the fracture, simplifies the operation process, and shortens the operation time.

✦ Generated by Eureka AI based on patent content.

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Abstract

The present application relates to the technical field of medical equipment, in particular to a fracture proximal end fixing device for lower limb long bone fracture reduction. The fracture proximal end fixing device for lower limb long bone fracture reduction comprises a positioning mechanism, a clamping mechanism and a guide connecting piece connecting the positioning mechanism and the clamping mechanism; the positioning mechanism is provided with a first auxiliary Kirschner wire for rough positioning of a fracture area; the guide connecting piece is rotatable around the axis of the first auxiliary Kirschner wire; the clamping mechanism comprises a main Kirschner wire and a clamping piece, the clamping piece is provided with a clamping space for accommodating the fracture area, and one end of the main Kirschner wire extends into the clamping space for fine positioning of the fracture area. The bone positioning device can be used for long bone fracture reduction, meets the mechanical and precision requirements of long bone fracture reduction, and realizes stable fixation of the long bone fracture proximal end holding in combination with the clinical requirements; and can solve the problems of unstable holding, occupation of too much surgical space resources and damage to fracture blood supply of the current device.
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Citation Information

Patent Citations

  • Fracture reduction mechanism for pelvic fracture minimally invasive surgery

    CN115634033A

  • Reduction robot system for closed reduction of long bone fracture

    CN118383873A