Metallic implant anchorable to bone tissue for replacing a broke

Details Metallic implant anchorable to bone tissue for replacing a broke Metallic implant anchorable to bone tissue for replacing a broke

1992-08-17

1995-10-10

Willse, David H.

Prosthesis (i.e., artificial body members), parts thereof, or ai

Implantable prosthesis

Bone

606 76, A61F 228

Patent

active

054567238

ABSTRACT:
The prevailing opinion, supported by observations, has been in the art, that any implant of titanium or of another similar material is to have a contact surface roughness of more than 20 .mu.m to yield a good bond between bone and implant. The present invention is based upon the recognition, that the bond between bone and implant may be substantially improved by providing the contact surface of the implant with a micro-roughness of 2 .mu.m or less. According to the method of the invention such micro-roughness can be readily produced by subjecting the contact surface to pickling in a reducing acid.

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Freed et al., Trans Am. Soc. Artif. Intern. Organs, vol. XXXI, 1985, pp. 230-232.
Wastie et al., Trans Am. Soc. Artif. Intern. Organs, vol. XXX, 1984, pp. 556-560.

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