Elastic intramedullary fixation device

US12290289B1 · kind B1 · utility

Assignee

• The Fourth Medical Center of the Chinese People's Liberation Army General Hospital · CN

Inventors

• Licheng ZHANG · Beijing, CN
• Peifu Tang · Beijing, CN
• Xiang CUI · Beijing, CN
• Chi-Cheng Ma · Forsyth, US
• Houchen LV · Beijing, CN
• Jia LI · Beijing, CN
• Hua Chen · Beijing, CN

Key dates

• Filing date: Jan 10, 2025
• Grant date: May 6, 2025
• Expiry date: Jan 10, 2045

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61B17/7233
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

An elastic intramedullary fixation device includes a serpentine frame and a shell, the inner surface of the shell is rotatably connected with a locking rod, one end of the locking rod is inserted with a key rod, one end of the shell is inserted with a clamping rod, the outer surfaces of the clamping rod and the key rod are sleeved with a connecting sleeve, the outer surfaces of the clamping rod and the key rod are provided with a connecting component, and the surfaces of the clamping rod and the shell are provided with a self-locking component. By configuring a connecting component and a self-locking component, the connecting component not only allows for the adjustment of the positional relationship between the key rod and the clamping rod, but also enables engagement with the locking component, thereby enhancing the stability of the connection between the clamping plate and the shell.