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Laparoscopic electrosurgical pencil

  • US 5,306,238 A
  • Filed: 09/13/1991
  • Issued: 04/26/1994
  • Est. Priority Date: 03/16/1990
  • Status: Expired due to Term
First Claim
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1. An electrosurgical instrument comprising:

  • a surgical assembly including a nozzle and an electrode having a common longitudinal axis, the nozzle positioned about at least a portion of the electrode;

    first means for arranging said assembly between a first arrangement wherein said electrode is exposed and a second arrangement wherein said electrode and said nozzle are substantially nested;

    second means for maintaining said assembly in said second arrangement when said assembly is in an inactive state; and

    third means for forward delivering a gas to said nozzle when said assembly is in said first arrangement.

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