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:
Jul. 31, 1990
Filed:
Sep. 05, 1989
Applicant:
Inventors:
Thomas H Mallory, Columbus, OH (US);
Timothy McTighe, Chagrin Falls, OH (US);
Douglas G Noiles, New Canaan, CT (US);
Assignee:
Joint Medical Products Corporation, Stamford, CT (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61F / ; A61F / ; A61F / ;
U.S. Cl.
CPC ...
623 22 ; 623 16 ; 623 18 ; 623 23 ;
Abstract
Artificial joint prostheses are provided whose outer surfaces include a screw thread which is interrupted by porous-coated columns so as to produce an alternating pattern of threaded columns adjacent to porous-coated columns. The threaded columns provide initial mechanical fixation of the prosthesis to bone and the porous-coated columns provide long-term fixation through bone ingrowth.