Stryker Corporation

Brendan Schneider

Trevor Jonathan Lambert

Rahul Sharma

Steven J Carusillo

Adam Simon

A surgical handpiece system capable of determining a suitable screw length for bone fixation with a bone plate that compensates an initial screw length value based on orientation of the surgical handpiece system during a drilling process. The surgical handpiece system comprising a surgical handpiece including a depth measurement extension and a sensor. The depth measurement extension may be configured to determine a thickness of bone when a drill bit is attached and used to drill through the bone. The sensor may be configured to generate an orientation signal responsive to orientation of the depth measurement extension. The surgical handpiece system also comprises a processor in communication with the sensor and configured to determine the suitable screw length for bone fixation based the sensor.

Calibration and adjustment determination of a surgical handpiece system

A surgical handpiece system for use with a drill bit having an identification feature that includes magnetic material. A handpiece transfers torque to the drill bit to rotate the drill bit. A measurement module that includes a housing is coupled to the handpiece. A measurement cannula made of a non-magnetic material surrounds the drill bit during operation. The measurement cannula extends forward or rearward relative to the housing and has a distal end adapted for placement against a workpiece. A transducer assembly generates a transducer signal based on a position of the measurement cannula relative to the housing. A sensor generates an identification signal responsive to a magnetic field or magnetoresistance of the identification feature of the drill bit through the measurement cannula during operation. A controller receives the identification signal and identifies the coupled drill bit corresponding to the received identification signal.

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Portage, MI, United States of America

Brendan Schneider