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Capacitive reusable electrosurgical return electrode

  • US 6,214,000 B1
  • Filed: 11/06/1999
  • Issued: 04/10/2001
  • Est. Priority Date: 10/30/1996
  • Status: Expired due to Term
First Claim
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1. A reusable electrosurgical return electrode comprising:

  • (a) a sheet of material having (i) a first layer of predetermined limited electrical conductivity;

    (ii) a second layer of dielectric material having a predetermined capacitive reactance, said second layer contacting and overlying said first layer; and

    (b) connecting means for making electrical connection to said sheet, wherein said predetermined limited electrical conductivity and said predetermined capacitive reactance automatically and continuously limit the density of electrosurgical current flowing through said electrode to less than 100 milliamperes per square inch.

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