Methods and systems for endometrial ablation

摘要

Methods, systems and devices for endometrial ablation. In accordance with a method, a working end of an RF ablation device is positioned in a patient uterus to contact endometrial tissue, the working end comprising a dielectric wall capable of non-expanded and expanded shapes. A Hall effect sensor carried by the working end is used to generate a signal that indicates a dimension of the uterine cavity or a frame-open parameter of the working end.

主权项

1. A system for treating uterine tissue, comprising:
an energy-delivery structure moveable between non-expanded and expanded shapes, the expanded shape configured for positioning in a uterine cavity; a Hall effect sensor carried in a first peripheral portion of the structure when in the expanded shape; and a magnet carried by a second portion of the structure when in the expanded shape, the second portion being removed from the first portion.