Surgery – Instruments – Orthopedic instrumentation
Reexamination Certificate
2007-12-27
2011-11-08
Barrett, Thomas C. (Department: 3775)
Surgery
Instruments
Orthopedic instrumentation
C606S079000, C606S091000
Reexamination Certificate
active
08052689
ABSTRACT:
An acetabular reamer (10, 10′, 10″) is intended in particular for the shaping of the cotyloid cavity in the event of a replacement of a hip joint by total prosthesis. The reamer (10, 10′, 10″) is typically of a truncated hemispherical form and is adapted for attachment to a reamer spindle in order to be driven in rotation about a cutter axis (11). The ability to cut a full, continuous hemisphere to the apex (12) of the hemispherical body (14) is suppressed, so as to attain the principal advantage of the invention, namely, to adequately prepare the acetabulum for receipt of a prosthesis while minimizing the possibility of breakthrough of the fovea/acetabular fossa. The reamer (10, 10′, 10″) has an interface16typically made tip of cross bars (20) which a holder engages for rotationally activating the reamer for cutting.
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International Search Report, PCT/IB2007/004126, dated Aug. 7, 2008.
Vendittoli, P.A., A Randomised Study Comparing Resection of Acetabular, Bone at Resurfacing and Total Hip Replacement, The Journal of Bone & Joint Surgery (Br). vol. 88-B, No. 8, Aug. 2006, Montreal. Canada.
Baenziger Andreas
Berdoz Patrick
Chenaux Fabrice
Sherry Eugene
Sivananthan Sureshan
Barrett Thomas C.
Greatbatch Medical S.A.
Scalise Michael F.
Yang Andrew
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