Catheter with electrosurgical cutter

Details Catheter with electrosurgical cutter Catheter with electrosurgical cutter

A - Human Necessities

61

B

A61B 17/32 (2006.01) A61B 18/08 (2006.01) A61B 18/14 (2006.01) A61B 17/00 (2006.01) A61B 18/00 (2006.01) A61M 3/02 (2006.01) A61B 17/36 (1990.01)

Patent

CA 2103593

A catheter assembly (10) which permits simultaneous dilatation and incision of tissue whereby trauma and damage to the tissue due to uncontrolled tearing is reduced or eliminated comprising an elongated tubular body (13) having a distal end that carries a dilatation balloon (15) and cutting element (17) carried on the exterior of the balloon and that moves radially in concert with the exterior of the bladder as the bladder is inflated and deflated. A radiofrequency current is directed through the cutting element (17) to incise proximate tissue. Pressure can be applied to the tissue prior to cutting to facilitate separation and subse- quent to cutting to inhibit bleeding.

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