Patents by Inventor Michael V. Madsen

Michael V. Madsen has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Endoscopic cannulated handpiece motor with integrated suction control
    Patent number: 6152941
    Abstract: A surgical handpiece includes a housing having an interior cavity and an exterior surface adapted to be gripped by the hand of a user. A rotary drive mechanism is provided inside of the housing and includes a driven shaft with a passageway extending axially therethrough. A suction connection is provided on the housing as is a suction control mechanism operable between first and second operative positions for preventing suction from being applied to the passageway in the driven shaft when in a first operative position and for connecting suction to the passageway when in a second operative position.
    Type: Grant
    Filed: April 10, 1998
    Date of Patent: November 28, 2000
    Assignee: Stryker Corporation
    Inventors: David M. Himes, Steven A. Tyler, Erik D. Eli, Michael V. Madsen, Matthew J. Curran, Marshal E. Finley