Mineralized collagen-based femoral head support device

US9878069B2 · kind B2 · utility

Assignee

• Shuhua Yang · CN

Inventors

• Shuhua Yang · Zhengzhou, CN
• Changming Wang · Nanjing, CN
• Zhiye Qiu · Beijing, CN
• Fuzhai Cui · Beijing, CN
• Xianzhe Liu · Hubei, CN
• Weihua Xu · Lo Wu, CN
• Shunan Ye · Hubei, CN
• Jing Wang · Qinhuangdao City, CN
• Yiping Zhang · Zhejiang, CN
• Yali Li · Cambridge, GB

Key dates

• Filing date: Mar 21, 2014
• Grant date: Jan 30, 2018
• Expiry date: Mar 21, 2034

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T428/1372
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

A femoral head support device, in particular a mineralized collagen-based femoral head support device applicable to the treatment of early osteonecrosis of femoral head. The device is made from a dense, homogeneous organic/inorganic composite, wherein the organic phase includes collagen and inorganic phase includes nano calcium phosphate salt, and the device is of a cylinder having an upright through hole and also has a support strength of up to 4000-6000N. By implementing a method for manufacturing such mineralized collagen-based femoral head support device, the mineralized collagen-based femoral head support device with mechanical properties equivalent to human cortical bone can be manufactured; and the mineralized collagen-based femoral head support device can meet the demand for clinical treatment of early osteonecrosis of femoral head to avoid the continuous collapse of necrotic femoral head.