Intramedullary multi-dimensional interlocking fixation device for bone fracture

By employing a multidimensional interlocking fixation design in the intramedullary fixation device for fractures, and utilizing a combination of main screws, secondary screws, and transverse locking screws, the problems of insufficient fixation dimensions and unreasonable stress distribution are solved, resulting in more stable fracture fixation and a higher postoperative repair success rate.

CN116407240BActive Publication Date: 2026-07-14YUNNAN OPPOS MEDICAL TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
YUNNAN OPPOS MEDICAL TECH CO LTD
Filing Date
2021-12-29
Publication Date
2026-07-14

AI Technical Summary

Technical Problem

Existing locking intramedullary fixation systems for fractures have insufficient fixation dimensions and unreasonable stress distribution, leading to displacement or failure of the fixation site and affecting postoperative repair outcomes.

Method used

The design employs a multi-dimensional interlocking fixing system consisting of a main screw, a secondary screw, a transverse locking screw, and a screw locker. By setting multiple C-shaped through slots and through holes on the main screw, combined with threaded connections, a multi-dimensional fixing system is formed, which disperses stress and increases stability.

Benefits of technology

It improved the success rate of surgery, enhanced the stability and stress distribution of the fixation device, prevented displacement of the fixation part, and improved the postoperative repair effect.

✦ Generated by Eureka AI based on patent content.

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    Figure CN116407240B_ABST
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Abstract

The embodiment of the application discloses a kind of intramedullary multidimensional interlocking fixation device for fracture, including main nail, main screw, auxiliary screw, horizontal locking screw, cap and screw lock.The main nail is driven into the intramedullary cavity of human skeleton, and the main screw, auxiliary screw and horizontal locking screw are driven into the slot hole along the nail body of main nail, and the screw lock, cap and main nail top are connected, the main nail, cap and screw lock form a group of fixed, the main screw, auxiliary screw, horizontal locking screw and main nail form a group of fixed, the screw lock, main screw, auxiliary screw and horizontal locking screw form a group of fixed, and the three groups of fixed structures are directly connected by main nail.By adding C-shaped through slot in the nail body part of main nail, the auxiliary screw can pass through the nail body along the C-shaped through slot, and finally the main screw, auxiliary screw and horizontal locking screw are used to connect the fracture site and main nail, so as to play the role of fixing reduction, with better structural stress distribution and better fixing effect.
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