Patents by Inventor Peter H. Hannam

Peter H. Hannam 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).

  • Patent number: 5078727
    Abstract: A balloon dilatation catheter has a flexible, hollow inner shaft and an outer, braided shaft with a balloon that is inflatable by fluid introduced between the outer and inner shaft. The inner shaft is fixed relative to the outer shaft at both ends such that, when the balloon is inflated, the outer shaft shortens and the excess length of the inner shaft is accommodated by the inner shaft bending into a coil within the balloon.
    Type: Grant
    Filed: June 22, 1990
    Date of Patent: January 7, 1992
    Inventors: Peter H. Hannam, Peter Carpenter
  • Patent number: 4702252
    Abstract: A dilatation catheter has a shaft comprising a tube of braided material encapsulated over a major portion of its length in an outer coating of semi-rigid inelastic material. An outer coating of elastic material extends over a minor portion of the length of the shaft at or near its distal end. An inner coating of elastic material is provided over the entire length of the inside of the tube. The distal end portion of the catheter is thereby inflatable by pressure applied from within the shaft to form a balloon. Radio-opaque markers may be provided at each end of the inflatable portion.
    Type: Grant
    Filed: January 27, 1986
    Date of Patent: October 27, 1987
    Assignee: Smiths Industries Public Limited Company
    Inventors: Kenneth J. Brooks, Michael A. Wilkinson, Peter H. Hannam, Neil A. Whiteside