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Electrosurgical hand-held battery-operated instrument

  • US 6,039,734 A
  • Filed: 07/27/1998
  • Issued: 03/21/2000
  • Est. Priority Date: 10/24/1995
  • Status: Expired due to Term
First Claim
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1. An electrosurgical instrument comprising a handpiece, a monopolar electrode unit having a single treatment electrode projecting from the handpiece, and a radio-frequency generator within the handpiece, the handpiece including an electrically conductive shield around the generator as a capacitive coupling element between the generator and the surroundings, and wherein the generator has no radio-frequency connections other than a single radio-frequency output connection to the treatment electrode for providing an active output connection between the generator and a patient and, in use, a return path between the generator and the patient provided by said capacitive coupling.

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