23 Jul Local spatial grid structure artificial joint prosthesis and preparation method thereof
Abstract
The invention relates to an artificial joint prosthesis with a local grid structure and the manufacturing method thereof, which belongs to the field of biomedicine engineering. The prosthesis comprises a prosthesis handle and a grid structure body, wherein the grid structure comprises a titanium plate and titanium fibers; and the titanium fibers are braided in cross, quadrangular or star shape and sintered on the titanium plate to form the 3D grid structure body with a pore size of 200 to 1,200 mum and a porosity of 30 to 60%. The manufacturing method comprises following steps: braiding and sintering the titanium fibers on the titanium plate to obtain the grid structure body, and welding on the predetermined portion of the joint prosthesis. The method can prevent the prosthesis handle from being subjected to high-temperature thermal processing, maintain good high-strength mechanical property and acquire proper grid structure, thus providing space for the growth of cells and tissue, promoting ankylosing of new-born bone tissue and host bone and achieving bio-fixation of prosthesis. The artificial joint prosthesis can be used for repairing injured joints clinically.
Year: 2008
Country: CN
Doc No: 101283936