Hip joint prosthesis component

The hip prosthesis components consist of a tantalum trabecular femoral stem and a tantalum trabecular metal outer cup, which are fabricated from a titanium alloy substrate compliant with YY 0117.1. The proximal end of the femoral stem and the surface of the outer cup feature a tantalum trabecular porous structure. This structure is formed by depositing pure tantalum material that meets YY/T 0966 onto a reticulated vitreous carbon scaffold via chemical vapor deposition (CVD), followed by attachment to the titanium alloy substrate surface through diffusion welding. The product is sterilized by gamma ray irradiation, with a 5-year sterilization validity period.

Scope of Application

This product is intended for use with components of the same system from the manufacturer and is applied as a cementless biological prosthesis for hip replacement procedures.

Product Features

Tantalum Metal Trabecular Femoral Stem:

★ Longitudinal rib structure in the mid-distal segment enhances the prosthesis' anti-rotation capability.

★ Highly interconnected porous structure provides unobstructed channels for bone ingrowth.

★ Polished distal surface with a patented eccentric stem tip design prevents distal stress concentration and reduces thigh pain.

★ The domestically pioneering diffusion welding bonding process realizes firm integration of tantalum metal and titanium alloy substrate.

Tantalum Metal Trabecular Acetabular Cup:

★ Adopts a 1:3 taper connection, which highly matches various types of polyethylene and ceramic liners to achieve the "one cup with multiple liners" function.

★ The highly interconnected porous structure provides unobstructed channels for bone ingrowth.

★ The multi-radius design enables a more precise fit between the acetabular cup and acetabular bone, delivering strong anti-rotation performance.

★ The domestically pioneering diffusion welding bonding process realizes firm integration of tantalum metal and titanium alloy substrate.

Product Advantages

The hip prosthesis system integrates the dual core advantages of the femoral stem and acetabular cup, boasting excellent biocompatibility and high clinical practical value. The longitudinal rib structure in the mid-distal segment of the femoral stem enhances anti-rotation capacity, while the highly interconnected porous structure establishes unobstructed channels for bone ingrowth. The polished distal end combined with the patented eccentric stem tip design effectively avoids distal stress concentration and reduces the incidence of postoperative thigh pain. The acetabular cup adopts a 1:3 taper connection, enabling flexible "one cup with multiple liners" adaptation. Its multi-radius design greatly improves the fitting precision with acetabular bone, further enhancing anti-rotation stability. Both components rely on the domestically pioneering diffusion welding bonding process to achieve firm integration of tantalum metal and titanium alloy substrate. From structural design to process technology, the system comprehensively ensures the long-term stability and clinical application effect of the prosthesis, providing an excellent option for hip replacement surgery.

Address

No. 10, Xinmixi 2nd Road, South Area of Tongzhou Economic

Development Zone, Tongzhou District, Beijing City, P.R. China

Contact Number

010-80561677

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