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. 10, 2000
Filed:
Nov. 24, 1998
Damon J Servidio, Montville, NJ (US);
Stryker Technologies Corporation, Kalamazoo, MI (US);
Abstract
Modular prosthetic shoulder components include a number of different sized humeral heads, each having a spherical outer surface and an interior tapered bore, a frustroconical intermediate head component dimensioned to lockingly mate with the tapered bore of the humeral heads and having a diametrical slot, and a humeral stem trunnion component having a rectilinear peg dimensioned to lockingly engage the diametrical slot in the intermediate head component. The components are assembled by inserting the intermediate head component into the tapered bore of a humeral head, inserting the peg of the trunnion component into the slot of the intermediate head component, and pressing the components together. The intermediate head component taper locks with the humeral head and force-fit locks onto the peg of the trunnion component. Prior to pressing the components together, the humeral head is movable relative to the trunnion component in three planes thereby allowing the practitioner to locate the humeral head in the same position as the organic humeral head which is being replaced. The components of the invention may also provide utility in other prosthetic joints such as prosthetic hip joints.