Patents Assigned to Electro Medical Systems, Inc.
  • Patent number: 4038984
    Abstract: A method and apparatus for electric surgery includes generating oscillations of high frequency electric energy of substantially constant amplitude, controlling the duration of and spacing in time between each series of oscillations generated and applying the generated energy through an electrode for the purpose of making surgical incisions and coagulating blood at the point of incision. A common generator serves as a source of the electric energy for different surgical procedures, the duration and spacing between each series of oscillations being closely controlled according to their intended application and in such a way as to minimize power requirements and the possible hazards of use either to the doctor or to the patient.
    Type: Grant
    Filed: March 29, 1972
    Date of Patent: August 2, 1977
    Assignee: Electro Medical Systems, Inc.
    Inventor: Weldon Rex Sittner
  • Patent number: 4034762
    Abstract: This vas cautery apparatus includes a bipolar needle electrode, a pencil hand control, and a cautery electronic circuit. The bipolar needle electrode comprises a unitary center conductor and tip and the center conductor may be effectively insulated from an outer conductor by an insulating tubing. A relatively easily manipulated electrical connector joins the bipolar needle electrode to the pencil hand control. An output waveform from the cautery electronic circuit has an alternating potential characteristic during periods of the waveform.
    Type: Grant
    Filed: August 4, 1975
    Date of Patent: July 12, 1977
    Assignee: Electro Medical Systems, Inc.
    Inventors: G. Ronald Cosens, Richard J. Drew