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:
Dec. 14, 2010
Filed:
Aug. 01, 2002
Patrick Michel White, West Chester, PA (US);
André Lechot, Orvin, CH;
Ezzedine Mahmoud, Bienne, CH;
Greatbatch Medical S.A., Orvin, CH;
Abstract
An acetabular reamer has a cutting structure rotatable about a longitudinal axis with a domed shell portion. The shell has an outer surface presenting multiple cutting sites and an inner surface for accumulation of debris. The shell has a static insertion profile area that is defined by a pair of first curved portions generated about a first radius with a center that lies on the axis and a pair of second curved portions generated about a center spaced apart from the axis. The cutting structure has a circular dynamic profile area generated upon rotation of the reamer by a handle. Both the static insertion area and dynamic profile area lie transferase to the axis, the former being smaller than the latter. Several distinctive alignment structures are described, alone and in combination with reamers having a conventional hemispherical shell, as well as in combination with present reamers that are less invasive.