Robotic total/partial knee arthroplastics
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United States of America Patent
Stats
-
Aug 27, 2013
Grant Date -
May 3, 2007
app pub date -
May 16, 2004
filing date -
May 16, 2003
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A system and method for knee arthroplasty procedures, using a novel leg rotation fixture to enable the leg mechanical axis, the tibia and the femur to be mutually disposed such that the load bearing, mechanical axis of the leg runs through the center of the knee joint. A measurement gauge is provided for mounting on the tibia and for aligning a baseplate in a known position on the tibia. This baseplate supports an X-ray target plate in a known position relative to the tibia, used in determining the mechanical axis, and an optional surgical robot, used to perform tibial and femoral cuts. The position of the femur relative to the robot may be determined from X-ray imaging of the pelvic region after attachment to the baseplate of an additional target extending to the pelvic region. The system enables improvement in the accuracy of knee arthroplasty procedures.
First Claim
Family
International Classification(s)
- B23Q:DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TO....
- G01J:MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTE....
- A61F:FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES....
- G01N:INVESTIGATING OR ANALYSING MATERIALS BY DETERMININ....
- A61B:DIAGNOSIS; SURGERY; IDENTIFICATION
- G01B:MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIME....
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