Patent · US Active

Plastic implant impregnated with a degradation protector

US8889166B2 · kind B2 · utility

0Cited by

5References

10Claims

0Family size

Assignee

Rush University Medical Center · US

Inventors

Achim Kunze · Hamburg, DE
Markus Wimmer · Höchst im Odenwald, DE
Joshua J. Jacobs · Wilmette, US

Key dates

Filing date	Jul 29, 2009
Grant date	Nov 18, 2014
Priority date	—
Expiry date	May 28, 2032

Classification

Technology area (CPC A)Human Necessities
CPC primaryA61F2310/00035
WIPO fieldMedical technology
WIPO sectorInstruments

Abstract

A plastic implant device for a mammal that contains a rare earth metal compound tracer and a method for detecting degradation such as wear of the implanted device are disclosed. The tracer can also be present with a separate antioxidant or the tracer compound can be can be the salt of a C6-C22 unsaturated carboxylic acid. The rare earth metal compound tracer is released when the prosthetic is worn down or otherwise degraded in the mammalian body in which it was implanted. The presence and amount of released tracer present in a body fluid or tissue sample measured and is proportional to the degree of degradation of the implant.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.