Inventors:
Wesley D. Johnson - Eden Prairie MN, US
Gerard A. Engh - Alexandria VA, US
Aaron J. Bisek - Elk River MN, US
Micheal N. Travanty - Minneapolis MN, US
Robert E. Kohler - Lake Elmo MN, US
Daryl R. Pilarski - East Bethel MN, US
Anthony G. Kremer - Becker MN, US
Kevin D. Swanson - Elk River MN, US
Kevin T. Staples - Forest lake MN, US
Assignee:
Alexandria Research Technologies, LLC - Plymouth MN
International Classification:
A61B 17/56
A61B 17/00
A61B 17/60
Abstract:
Methods and devices for sculpting bones, particularly in preparation for implanting prosthetic devices to replace articulating bone joint surfaces. Improved bone removal devices including burr mills driven by gears and loop drives are provided. Reciprocating cutters and belt cutters are also provided. Some devices have either integral or removable expandable portions to vary the force and bone resection depth. Devices can have irrigation ports and plenums to remove bone fragments. Some cutters are dual cutters, adapted to remove bone in two or more regions, such as the knee joint, simultaneously.