Patent ID: 8647352
Filing Date: 2014-02-11
Classification: A61B,Y10T

Abstract:
1. A method for treating a patient, comprising: advancing an applicator into the intestine through a natural orifice to the site of tissue to be removed; inverting the tissue at least in part using the applicator; and clamping the tissue with a torus-shaped resilient ring defining a central ring axis and a circular transverse axis and having at least one gripping element that engages the tissue, the gripping element being straight from an interface of the gripping element with the ring to a free end of the gripping element and defining a straight element axis from the interface to the free end, the straight element axis being perpendicular to the central ring axis when the ring is in a relaxed state, a distal end of the applicator bearing the ring, the ring being materially biased to the relaxed state, in which the ring assumes a radially smaller configuration, the ring being stretchable to an enlarged state to fit onto the applicator with the gripping element bearing against the applicator to urge the straight element axis away from being perpendicular to the central ring axis and thereby twist the ring about the circular transverse axis, the ring assuming the enlarged state when on the applicator and assuming the relaxed state when urged off the applicator and onto the tissue, the ring being rolled about its circumference onto the delivery device such that upon release of the ring the rings unrolls under the influence of material bias to drive the gripping element into the tissue.