Prosthetic devices having sintered thermoplastic coatings with a

Details Prosthetic devices having sintered thermoplastic coatings with a Prosthetic devices having sintered thermoplastic coatings with a

1979-12-13

1982-09-28

Frinks, Ronald L.

Surgery

Truss

Pad

3 19, 3 191, 128 92B, 128 92BC, 128 92C, 433173, 433176, 433201, 156 77, 264 25, 264327, A61F 124, A61F 504, A61B 1718, A61C 1320

Patent

active

043510698

ABSTRACT:
Coated Prosthetic devices useful in the medical and dental fields, such as dental implants, intramedullary nails, and total hip prostheses, are provided having a porosity or density gradient in the sintered plastic coating. The higher porosity is at the outer surface which facilitates bone ingrowth while the lesser porosity which has a higher density and a more continuous plastic layer is on the inner surface and thus provides better adhesion to the load bearing component.

REFERENCES:
patent: 3855638 (1974-12-01), Pilliar
patent: 3986212 (1976-10-01), Sauer
patent: 4164794 (1979-08-01), Spector et al.
Williams et al., Implants in Surgery, W. B. Saunders Co., Ltd., pp. 89-93, published Jul. 3, 1973.
Sauer et al., "The Role of Porous Polymeric Materials in Prosthesis Attachment", presented at the Clemson University Fifth Annual Biomaterials Symposium, Apr. 14-18, 1973.
Spector, M. et al., "Bone Growth into Porous High-Density Polyethylene", J. Biomed. Materials Res. Symposium, No. 7, pp. 595-603, 1976.

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