Minimally invasive surgical reamer and connection

Details Minimally invasive surgical reamer and connection Minimally invasive surgical reamer and connection

2002-08-01

2010-12-14

Barrett, Thomas C (Department: 3775)

Surgery

Instruments

Orthopedic instrumentation

C606S079000

Reexamination Certificate

active

07850692

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.

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