Surgery – Instruments – Orthopedic instrumentation
Reexamination Certificate
2007-02-06
2007-02-06
Robert, Eduardo C. (Department: 3733)
Surgery
Instruments
Orthopedic instrumentation
C033S512000, C623S020140
Reexamination Certificate
active
10792337
ABSTRACT:
A tibial sizer, or set of sizers, used to estimate the appropriate size tibial base plate implanted during knee arthroplasty. The preferred embodiment provides a measurement of the amount of exposed bone between a posterior proximal portion of the tibia and a posterior edge of the tibial sizer (which edge will correspond to the posterior edge of the tibial base plate). Preferably, the sizer includes a head and a handle extending outwardly from the head, as well as a channel with a slider configured and arranged to be slidably positioned within the channel. The slider includes markings for indicating the amount of exposed bone between a posterior proximal portion of a tibia and a posterior edge of the head of the sizer. Additional markings are also provided for indicating a suggested size of tibial base plate with respect to the anterior/posterior direction.
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Intramedullary Surgical Approach—The M/G™ Unicompartmental Knee Minimally Invasive Surgical Technique; by Zimmer, Inc., 2002; pp. 1-24 (with special emphasis directed to p. 18).
Michael Jeffrey
Steffensmeier Scott
Baker & Daniels LLP
Robert Eduardo C.
Swiger James L.
Zimmer Technology, Inc.
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