Patents Assigned to Trimark (R&D) Limited
  • Patent number: 4950223
    Abstract: A closure device for use in the closure of stomas and the like is described and comprises a bellows like reservoir which is integral with and in fluid communication with a bell-shaped inflatable bung. The inflatable bung can be positioned with a body channel of the stoma and inflated to a predetermined degree defined by the volume of the reservoir. A filter channel is provided in an annular ring of the device and is positioned so as to permit escape of flatus without becoming blocked by liquid or solid materials from the body channel.
    Type: Grant
    Filed: September 7, 1988
    Date of Patent: August 21, 1990
    Assignee: Trimark (R&D) Limited
    Inventor: Beverley Silvanov