Alexandria Research Technologies, LLC

Depuy Products, Inc.

Biomet C.v.

Cayenne Medical, Inc.

Aaron J Bisek

Wesley D Johnson

Michael Travanty

Robert Edward Kohler

Daryl R Pilarski

Matthew V Leyden

Marc E Ruhling

Gerard A Engh

Matthew S Wallace

Jeffrey B Waffensmith

Kevin David Swanson

William Thomas Ryder

David A Hawkes

Anthony G Kremer

Kevin T Stables

Gerald A Engh

Robert E Kohler

Michael N Travanty

Kevin T Staples

Kevin D Swanson

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.

Method for sculpting the surface of a joint

An assembly includes a guide component having (i) a base defining a first passageway, and (ii) a handle attached to the base, the base including a first coupling component. The assembly further includes a first sheath defining a second passageway, the first sheath including a second coupling component configured to cooperate with the first coupling component to couple the first sheath to the base. The first passageway is aligned with the second passageway when the first sheath is coupled to the base. The assembly further includes a stop structure defining a central passage, the stop structure including an external surface having a plurality of keyways defined therein. The first sheath includes a key member configured to be selectively received in any one of the plurality of keyways. The stop structure is fixed in relation to the first sheath when the key member is positioned in any one of the plurality of keyways.

Guide assembly for use in a medical procedure

Apparatus and method for sculpting the surface of a joint

A bone fixation assembly includes a side plate for mounting on a bone and a barrel for receiving a portion of a lag screw, and configured to be inserted into a hole in the side plate. A mechanical spring located at the upper portion of the barrel biases a first detent portion toward a locking position with a second detent portion located on the side plate such that rotation of the barrel within the hole from a first position to a second position causes a compressing portion on the detent portion to contact a compressing portion on the second detent portion thereby compressing the mechanical spring so as to allow the barrel to be rotated to a third position wherein the mechanical spring is allowed to bias the first detent portion into the locking position such that a retaining portion of the first detent is adjacent to a retaining portion of the second detent and rotation of the barrel with respect to the side plate is restricted.

Orthopaedic device with locking barrel

Growing community of inventors

Elk River, MN, United States of America

Aaron J Bisek