Patents Examined by Pastrick J. Ryan
  • Infection resistant medical devices and process
    Patent number: 5492763
    Abstract: A medical device provided with a subsurface bacteriostatic/bactericidal stratum to a predetermined depth is disclosed. The bacteriostatic/bactericidal stratum is introduced into the medical device by ion implantation of sufficient concentration to impart thereto the desired bacteriostatic/bactericidal property. The acquired bacteriostatic/bactericidal property has a useful life coterminal with the device. The treated medical device remains biocompatible, is non-leaching and, depending on the specific device, also is thromboresistant.
    Type: Grant
    Filed: February 10, 1994
    Date of Patent: February 20, 1996
    Assignee: Spire Corporation
    Inventors: John E. Barry, Piran Sioshansi