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Electrosurgical apparatus

  • US 5,571,100 A
  • Filed: 10/28/1994
  • Issued: 11/05/1996
  • Est. Priority Date: 11/01/1993
  • Status: Expired due to Term
First Claim
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1. An electrode assembly for an electrosurgical instrument, the assembly comprising an elongate tubular shaft mounting on a distal end portion thereof at least one electrode, an electrical conductor passing through the shaft and connected to the electrode, and, mounted on a proximal end portion of the shaft, mounting means for detachably mounting the assembly to a handpiece of the instrument, the mounting means comprising a first component shaped for attachment to the handpiece in a non-rotational relationship, and a second component rotatably coupled to the first component and secured to the shaft and rotatable with the shaft with respect to the first component about a longitudinal axis of the shaft, the conductor terminating in a contact portion housed in the first component and being formed so as to allow the electrode, the shaft, a part of the conductor in the distal end portion of the shaft, and the second component to rotate with respect to the first component and the contact portion about the longitudinal axis.

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