Patents by Inventor Michael F. Sawers

Michael F. Sawers 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).

  • Contoured adhesive wafer for ostomy appliance
    Patent number: 5834009
    Abstract: An adhesive wafer for an ostomy pouch, and the combination of such a wafer and pouch, in which the adhesive layer of the wafer is composed of a hydrocolloid-containing skin barrier material and is contoured to provide a relatively thick body portion surrounded by a relatively thin peripheral portion, are disclosed. The wafer has a stoma-receiving opening, and the adhesive layer is of developed shape so that most, if not all, of the relatively thick body portion is located immediately below and to the sides of the stoma-receiving opening. The relatively thin peripheral portion of the adhesive layer is preferably embossed to provide a pattern of discrete, non-connecting depressions separated and isolated from each other by flat-top ridges dimensioned and arranged so that a skin surface engaged by said embossed surface primarily contacts only such ridges.
    Type: Grant
    Filed: November 3, 1997
    Date of Patent: November 10, 1998
    Assignee: Hollister Incorporated
    Inventors: Michael F. Sawers, Thomas H. Gilman, Barry L. Schneider, Eric D. Ellingson, Ronald S. Botten, Werner E. Engelmann
  • Ostomy appliance and contoured adhesive wafer therefor
    Patent number: 5730736
    Abstract: An adhesive wafer for an ostomy pouch, and the combination of such a wafer and pouch, in which the adhesive layer of the wafer is composed of a hydrocolloid-containing skin barrier material and is contoured to provide a relatively thick body portion surrounded by a relatively thin peripheral portion, are disclosed. The wafer has a stoma-receiving opening, and the adhesive layer is of developed shape so that most, if not all, of the relatively thick body portion is located immediately below and to the sides of the stoma-receiving opening. The relatively thin peripheral portion of the adhesive layer is preferably embossed to provide a pattern of discrete, non-connecting depressions separated and isolated from each other by flat-top ridges dimensioned and arranged so that a skin surface engaged by said embossed surface primarily contacts only such ridges.
    Type: Grant
    Filed: September 26, 1996
    Date of Patent: March 24, 1998
    Assignee: Dansac A/S
    Inventors: Michael F. Sawers, Thomas H. Gilman, Barry L. Schneider, Eric D. Ellingson, Ronald S. Botten, Werner E. Engelmann