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:
Jan. 25, 2005
Filed:
Sep. 22, 2000
Laurel L. Rogers, N. Attleboro, MA (US);
Mariann Sayer, Seattle, WA (US);
David W. Overaker, Annandale, NJ (US);
Shawn T. Huxel, Lakehurst, NJ (US);
Kevin Cooper, Warren, NJ (US);
Dennis D. Jamiolkowski, Long Valley, NJ (US);
Joseph R. Thomas, Loveland, OH (US);
Laurel L. Rogers, N. Attleboro, MA (US);
Mariann Sayer, Seattle, WA (US);
David W. Overaker, Annandale, NJ (US);
Shawn T. Huxel, Lakehurst, NJ (US);
Kevin Cooper, Warren, NJ (US);
Dennis D. Jamiolkowski, Long Valley, NJ (US);
Joseph R. Thomas, Loveland, OH (US);
Codman & Shurtleff, Inc., Raynham, MA (US);
Abstract
A bioabsorbable rivet and pin fastener is formed as an elongated unit that may be used for anchoring, or for attachment of a fixation plate. The rivet has a head mechanically connected to two or more legs that extend generally distally from the head and may flex outwardly from a central rivet axis. The pin is integral with the rivet and oriented along the central axis by a connection such as a web or a plurality of braces, forming an integral, aligned, one-piece assembly that may, for example, be molded as a single piece. The connection breaks under force as the pin is driven into the rivet, so that the pin contacts internal surfaces of the legs and pushes the legs outward into frictional engagement with the surrounding bone. The one-piece assembly may be formed in a gated mold having a central pin with a relief passage that defines the braces between upper and lower portions of the rivet. The braces so formed at the weld line readily part from the mold, and are easily sheared when the pin is advanced during installation of the rivet.