Patents Assigned to Spembly Limited
  • Cryosurgical probe
    Patent number: 4207897
    Abstract: A cryosurgical probe is adapted for the freezing of a nerve and is fitted with an electrode at its tip for electrical stimulation of the nerve, to enable the surgeon to know when the probe tip has been correctly placed in proximity to a particular nerve which it is desired to freeze.
    Type: Grant
    Filed: July 13, 1977
    Date of Patent: June 17, 1980
    Assignees: Spembly Limited, John W. Lloyd
    Inventors: John W. Lloyd, David E. Wild, Humphry R. Evatt
  • Cryosurgical instrument
    Patent number: 4063560
    Abstract: The invention provides for re-warming of a cryosurgical instrument after its use in the cold mode, during which refrigerant is supplied through a first duct through first restriction, by admitting to the cavity within the probe tip fluid from a pressurized source through a second duct this supply being subject to control imposed by a second restriction.
    Type: Grant
    Filed: April 5, 1976
    Date of Patent: December 20, 1977
    Assignee: Spembly Limited
    Inventors: Ernest Hilton Thomas, Humphry Robert Evatt