The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 21, 2014
Filed:
Jan. 19, 2001
Edward W. Merrill, Belmont, MA (US);
William H. Harris, Belmont, MA (US);
Murali Jasty, Weston, MA (US);
Charles R. Bragdon, Weymouth, MA (US);
Daniel O. O'connor, East Taunton, MA (US);
Premnath Venugopalan, Chennai, IN;
Edward W. Merrill, Belmont, MA (US);
William H. Harris, Belmont, MA (US);
Murali Jasty, Weston, MA (US);
Charles R. Bragdon, Weymouth, MA (US);
Daniel O. O'Connor, East Taunton, MA (US);
Premnath Venugopalan, Chennai, IN;
The General Hospital Corporation, Boston, MA (US);
Massachusetts Institute of Technology, Cambridge, MA (US);
Abstract
A medical prosthesis for use within the body which is formed of radiation treated ultra high molecular weight polyethylene having substantially no detectable free radicals, is described. Preferred prostheses exhibit reduced production of particles from the prosthesis during wear of the prosthesis, and are substantially oxidation resistant. Methods of manufacture of such devices and material used therein are also provided.