Patents by Inventor Ralph K. Brady

Ralph K. Brady 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).

  • Cryosurgical system with protective warming feature
    Patent number: 6505629
    Abstract: A system and method for performing cryosurgery of the prostate while protecting surrounding tissue. Cryosurgical probes are provided with argon gas for cooling and with helium for warming. Probes are inserted into the prostate and supplied with argon gas for cooling, while probes inserted into the surrounding tissue and supplied with helium gas for warming. The warmed probes protect the surrounding tissue from freezing.
    Type: Grant
    Filed: December 15, 1999
    Date of Patent: January 14, 2003
    Assignee: Endocare, Inc.
    Inventors: Paul W. Mikus, Gregory L. Kelly, Ralph K. Brady
  • Cryoprobe
    Patent number: 6074412
    Abstract: Cryocoolers for use in cryosurgery and other applications comprising dual finned tube helical coil heat exchangers. The size and shape of iceballs created by the probes is controlled by the location of the gas outlets within the cryocooler outer sheath.
    Type: Grant
    Filed: August 29, 1998
    Date of Patent: June 13, 2000
    Assignee: Endocare, Inc.
    Inventors: Paul W. Mikus, Gregory L. Kelly, Ralph K. Brady
  • Cryoprobe
    Patent number: 5800487
    Abstract: Cryocoolers for use in cryosurgery and other applications comprising finned tube helical coil heat exchangers and a flow directing sheath covering portions of the heat exchanger coil and isolating portions of the heat exchanger coil from the outer sheath of the cryocooler. The size and shape of iceballs created by the probes is controlled by the extent and location of the flow directing sheath.
    Type: Grant
    Filed: July 23, 1996
    Date of Patent: September 1, 1998
    Assignee: Endocare, Inc.
    Inventors: Paul W. Mikus, Gregory L. Kelly, Ralph K. Brady