Patents by Inventor Cropper S. Michael

Cropper S. Michael 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).

  • Conical trocar seal
    Patent number: 8147457
    Abstract: A trocar for performing a procedure on a patient. The trocar includes a hollow cannula having a distal end and a proximal end. The trocar includes a housing having a distal end attached to the proximal end of the cannula and a proximal end having a wall attached thereto. The wall having an aperture therethrough. The trocar further includes a first seal disposed within the housing comprising a plurality of layered elastomeric members forming conical shape.
    Type: Grant
    Filed: October 15, 2003
    Date of Patent: April 3, 2012
    Assignee: Ethicon Endo-Surgery, Inc.
    Inventors: Cropper S. Michael, Paul Franer, Thomas A. Gilker, Geoffrey C. Hueil, David K. Norvell, Brian J. Thompson, Aaron C. Voegele, Mark S. Zeiner