Interlocking tibial prosthesis

Patent 5480445 Issued on January 2, 1996. Estimated Expiration Date:

June 9, 2014. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

Abstract Claims Description Full Text

Patent References

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Inventor

Burkinshaw, Brian D.

Assignee

Intermedics Orthopedics, Inc.

Application

No. 257680 filed on 06/09/1994

US Classes:

623/20.32Tibial bone

Examiners

Primary: Isabella, David J.

Attorney, Agent or Firm

Merkling; John R.

International Class

A61F 002/38

Abstract

A tibial knee prosthesis having a plastic or polyethylene prosthesis body comprising an articulating surface and medullary stem. An intermediate metal plate locks on to the medullary stem and fits between the articulating surface and a resected proximal surface of the tibia. A distal surface of the plate may be provided with a porous coating adjacent the proximal resected surface of the tibia, to encourage bone ingrowth and fixation.