Extended life prosthetic joints through thermal management

Details Extended life prosthetic joints through thermal management Extended life prosthetic joints through thermal management

2005-04-05

2005-04-05

Snow, Bruce E (Department: 3738)

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

Implantable prosthesis

Bone

C623S018110, C623S023360

Reexamination Certificate

active

06875238

ABSTRACT:
A prosthetic joint has two load-bearing surfaces that are slidingly disposed relative to each other and define a region of frictional contact. The joint is thermally managed as heat is removed from the region of frictional contact during joint use by thermal conduction so that the surfaces are maintained approximately at or below specified temperatures. Embodiments of femoral ball members and acetabular cup members to be used in thermally managed prosthetic hip joints are provided.

REFERENCES:
patent: 4535486 (1985-08-01), Roberts et al.
patent: 4743308 (1988-05-01), Sioshansi et al.
patent: 5674293 (1997-10-01), Armini et al.
patent: 5865850 (1999-02-01), Matthews
Monachos Engineering, Conductivity table for various materials, 1 page.

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