Patent ID: 6050993
Filing Date: 2000-04-18
Classification: A61B

Abstract:
A medical device system comprising:a delivery tubular shaft having a distal end, a proximal end, and at least one lumen extending therebetween;a handle attached to the proximal end of the delivery tubular shaft, wherein the handle has a cavity;an inner elongate tubular shaft located within one lumen of the delivery tubular shaft, the inner elongate tubular shaft, on which thereof an electrode means for treating tissue is mounted on a distal end portion, an electrical conductor passing through the inner elongate tubular shaft and connected to the electrode means, and mounted on a proximal end portion of the delivery tubular shaft to the handle of the device, wherein the electrode means comprises at least one compressible coil loop having a distal end portion to contact a target tissue, the compressible coil loop having the capability of applying appropriate pressure to encircle and press the target tissue, wherein the distal end portion of the compressible coil loop is shaped in a concave-top fashion relative to the target tissue and adapted to maximize contact with the target tissue; anda RF energy generating means, wherein the RF energy is provided to the electrode means through the electrical conductor.