Accession Number : ADD001813

Title :   Electrodeposition of Bone Within a Plastic Matrix.

Descriptive Note : Patent,


Personal Author(s) : Phillips,David C ; Shaw,Bevil J

Report Date : 01 Jul 1975

Pagination or Media Count : 5

Abstract : The invention is a method of improving orthopedic implant material by the simultaneous electrodeposition of bone particles and an inert plastic binder onto a prosthesis. A polyamic acid is dissolved in a solvent such as dimethylsulfoxide and an amine is added to the solution to produce the organic salt of a free carboxyl group. A colloidal suspension of the organic salt and fine bone particles in a mixed solvent comprised of acetone and dimethylsulfoxide is placed in a receptacle and a voltage is applied to a pair of electrodes immersed in the solution causing the deposition on the anode of bone in a polyamic acid plastic matrix. After subsequent cure, the result is a coating of bone within a polyimide matrix on the electrode.

Descriptors :   *Patents, *Prosthetic devices, *Orthopedics, *Electrodeposition, Coatings, Bones, Implantation, Polyamide plastics, Electrochemistry

Subject Categories : Medical Facilities, Equipment and Supplies

Distribution Statement : APPROVED FOR PUBLIC RELEASE