Patents by Inventor Gwendolyn Ruth Perez

Gwendolyn Ruth Perez 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).

  • Biopsy instrument with improved needle penetration
    Patent number: 7470237
    Abstract: The present invention provides a biopsy instrument with improved needle penetration for piercing dense tissue. The device may comprise a needle slidably retained in a housing. The device may further comprise an actuation member that may be adapted to communicate longitudinal motion to the needle in a first direction. The device may further include a propulsion element that provides the needle with return motion in a second direction. The device may be fired multiple times to create repeating reciprocal motion. In one version, the device may reciprocate several times as a result of a single engagement of the actuation member.
    Type: Grant
    Filed: January 10, 2005
    Date of Patent: December 30, 2008
    Assignee: Ethicon Endo-Surgery, Inc.
    Inventors: Andrew T. Beckman, Thomas E. Albrecht, Lee Reichel, Gwendolyn Ruth Perez