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US 4,365,356 AGranted
Prosthesis parts provided with a coating of a bio-active material
AssigneeErnst Leitz Wetzlar GmbH
InventorsHeinz Broemer, Werner Adam, Friedhelm Hedrich
Life of this patent
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Abstract
Disclosed are novel prosthesis parts of improved properties which are obtained by providing a material as used for prosthesis with an enamel or enamel-like coating and incorporating in said enamel layer, while in a viscous state, a bio-active material. Such prosthesis parts have a satisfactory adhesive strength and coefficient of expansion, are substantially free of pores, are highly corrosion resistant, and readily grow intimately and firmly together with the bone tissue without the use of bone cement.
Claims23
A prosthesis working piece comprising:
- a structural core element;
- at least one carrier layer substantially free of pores applied to said core element, said carrier layer comprising an inorganic enamel which is compatible with the body;
- and a multitude of particles of a bio-active material at least partly embedded in said carrier layer to provide a multitude of exposed areas of the particles on which the bone tissue can grow together with the prosthesis, said bio-active material particles having a particle size of at least about 50 .mu.m.
Dependencies are inferred from the claim text.