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Electrosurgical device and methods

  • US 10,206,739 B2
  • Filed: 07/14/2006
  • Issued: 02/19/2019
  • Est. Priority Date: 03/05/2002
  • Status: Active Grant
First Claim
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1. An electrosurgical device comprising:

  • an elongate member defining a lumen, the elongate member having a rounded distal face comprising one or more electrically exposed conductive portions for delivering energy distal to the distal face;

    one or more electrically insulated portions circumferentially surrounding and fixed to an outer surface of the elongate member;

    at least one of the one or more electrically insulated portions extending from a proximal region of the elongate member to the distal face and having an outer diameter adjacent the distal face that is greater than a diameter of the distal face;

    at least one tube within the lumen for at least one of delivering a fluid to or removing a fluid from a distal region of the elongate member for cooling at least a portion of the elongate member, the fluid entering and exiting the elongate member only at a proximal end of the elongate member; and

    a temperature sensor protruding from the distal face and electrically coupled to an external device via the lumen so as to measure a temperature of a material located distally to the distal face, the temperature sensor located on an external surface of the distal face and separated from the lumen via the distal face such that the fluid does not contact the temperature sensor.

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