Accession Number : ADD006140

Title :   Method of Making Ceramic Prosthetic Implant Suitable for a Knee Joint.

Descriptive Note : Patent,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON DC

Personal Author(s) : Klawitter,Jerome J ; Bhatti,Nazir A

Report Date : 19 Jun 1979

Pagination or Media Count : 5

Abstract : A method for fabricating a ceramic prosthesis of high aluminum oxide suitable for the tibial plateau of a knee joint with the superior (upper) portion of the prosthesis being of a high density Al2O3 having a very low porosity and the inferior (lower) portion being of high density Al2O3 having a high degree of porosity capable of accepting bone growth. The method of fabricating the prosthesis comprises mixing a powdered batch of high aluminum oxide material to produce a viscous slip, adding a foaming agent to the slip, adding a catalyst to the slip to decompose the foaming agent, infiltrating the slip into a sponge, drying the composite, producing a planar surface on the porous layer, fabricating a second denser layer, placing a slurry between the two layers, drying and sintering the laminate. (Author)

Descriptors :   *Patents, *Ceramic materials, Artificial limbs, Knee(Anatomy), Aluminum oxides, Surgical implantation

Subject Categories : Medical Facilities, Equipment and Supplies

Distribution Statement : APPROVED FOR PUBLIC RELEASE