Patents by Inventor Kelvin J. Varney

Kelvin J. Varney 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: 7896877
    Abstract: A device for morcellating tissue within a body cavity of a patient comprises a stationary tube having a distal end portion, and a bipolar electrosurgical electrode assembly located at the distal end of the tube. The electrosurgical electrode assembly comprises first and second electrodes separated by an insulation member, the bipolar electrosurgical electrode assembly extending around the circumference of the distal edge of the tube. When an electrosurgical cutting voltage is applied to the electrode assembly, and relative movement is initiated between the tube and the tissue, a core of severed tissue is formed within the tube such that it can be removed from the body cavity of the patient. A tissue-pulling device such as a jaw assembly can be employed to pull tissue against the distal end of the tube.
    Type: Grant
    Filed: May 19, 2005
    Date of Patent: March 1, 2011
    Assignee: Gyrus Medical Limited
    Inventors: Matthew R. Hall, Mark G. Marshall, Colin C. O. Goble, Francis Amoah, Kelvin J. Varney, Julian Mark Ebbutt
  • Publication number: 20100305563
    Abstract: An electrosurgical system includes a first component (11) and a second component (7) detachably connected one to the other. The first component is provided with a socket (33) including a plurality of contacts (34 to 40), and the second component is provided with a plug (17) including one or more pins (19). The arrangement is such that when the plug (17) is received within the socket (33) the one or more pins (19) make electrical contact with a particular combination of the plurality of contacts (34 to 40). The electrosurgical system is provided with means for identifying the second component (7) by determining the combination of contacts (34 to 40) in which the one or more pins (19) are in electrical contact.
    Type: Application
    Filed: May 21, 2010
    Publication date: December 2, 2010
    Inventor: Kelvin J. VARNEY
  • Patent number: 5078713
    Abstract: A cryosurgical probe having a probe head which is cooled by Joule-Thomson cooling, and is then used to freeze bodily tissue during a surgical procedure. A steerable catheter is connected between the probe head and a probe handle to enable the probe head to be guided with safety and precision along arteries of the body to the target area.
    Type: Grant
    Filed: November 30, 1989
    Date of Patent: January 7, 1992
    Assignee: Spembly Medical Limited
    Inventor: Kelvin J. Varney