Patents by Inventor Huw L Jones

Huw L Jones 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).

  • Electrosurgical system
    Patent number: 7901401
    Abstract: An electrosurgical system comprises a generator and an instrument including a first electrode, a second electrode, and an insulating spacer separating the first and second electrodes. The generator repeatedly measures a characteristic of the radio frequency output such as the impedance between the first and second electrodes. The generator analyses the impedance measurements, and interrupts the radio frequency signal when the rate of change of the impedance is such as to indicate the onset of a “flare-out”. In this way, the power is reduced before the flare-out leads to permanent damage or failure of the instrument.
    Type: Grant
    Filed: April 30, 2007
    Date of Patent: March 8, 2011
    Assignee: Gyrus Medical Limited
    Inventors: Alistair I Fleming, Huw L Jones
  • Electrosurgical system
    Patent number: 7220260
    Abstract: An electrosurgical system comprises a generator and an instrument including a first electrode, a second electrode, and an insulating spacer separating the first and second electrodes. The generator repeatedly measures a characteristic of the radio frequency output such as the impedance between the first and second electrodes. The generator analyses the impedance measurements, and interrupts the radio frequency signal when the rate of change of the impedance is such as to indicate the onset of a “flare-out”. In this way, the power is reduced before the flare-out leads to permanent damage or failure of the instrument.
    Type: Grant
    Filed: June 19, 2003
    Date of Patent: May 22, 2007
    Assignee: Gyrus Medical Limited
    Inventors: Alistair I. Fleming, Huw L Jones
  • Electrosurgical system
    Publication number: 20040002745
    Abstract: An electrosurgical system comprises a generator and an instrument including a first electrode, a second electrode, and an insulating spacer separating the first and second electrodes. The generator repeatedly measures a characteristic of the radio frequency output such as the impedance between the first and second electrodes. The generator analyses the impedance measurements, and interrupts the radio frequency signal when the rate of change of the impedance is such as to indicate the onset of a “flare-out”. In this way, the power is reduced before the flare-out leads to permanent damage or failure of the instrument.
    Type: Application
    Filed: June 19, 2003
    Publication date: January 1, 2004
    Applicant: GYRUS MEDICAL LIMITED.
    Inventors: Alistair I. Fleming, Huw L. Jones