Patents by Inventor Gerald Bartholomew

Gerald Bartholomew 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).

  • Subcutaneous injection set with improved cannula mounting arrangement
    Patent number: 5176662
    Abstract: An improved subcutaneous injection set is disclosed which has a soft cannula for subcataneous delivery of a selected medication to a patient. The cannula is supported by and protrudes outwardly from a cylindrical support hub of a housing adapted to receive the selected medication. A flanged base end of the cannula is disposed within the housing and is captured by a swaged lock rim to retain a sealing gasket under compression against an annular seat within the support hub, thereby preventing leakage of the medication through the hub and about the exterior of the cannula.
    Type: Grant
    Filed: August 23, 1990
    Date of Patent: January 5, 1993
    Assignee: Minimed Technologies, Ltd.
    Inventors: Gerald Bartholomew, Douglas G. Ritchie