Implant and method for production thereof

Prosthesis (i.e. – artificial body members) – parts thereof – or ai – Implantable prosthesis – Bone

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623901, 623 66, A61F 228

Patent

active

048634751

ABSTRACT:
An implantable prosthesis including a base member, such as the stem of a hip joint prosthesis, having a porous region on its surface, and the region of porosity being coated with a bioabsorbable material, such as .alpha.-tricalcium phosphate, which enhances permanent bone ingrowth into the region. A method of manufacture of the prosthesis includes the steps of providing a coating material and applying the material to at least a portion of the porous surface of the base member, while providing energy sufficient to transform the material to a state in which it is bioabsorbable. In the preferred embodiment the material is plasma sprayed onto the porous surface of the base member.

REFERENCES:
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patent: 4309488 (1982-01-01), Heide et al.
patent: 4322398 (1982-03-01), Reiner
patent: 4330891 (1982-05-01), Branemark et al.
patent: 4366183 (1982-12-01), Ghommidh et al.
patent: 4483678 (1984-11-01), Nishio et al.
patent: 4495664 (1985-01-01), Blanquaert

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