Patent ID: 9039715
Filing Date: 2015-05-26
Classification: A61B,A61M

Abstract:
1. A retrieval apparatus for entrapping and retaining an object located in a body for its extraction therefrom, the apparatus comprising a retrieval snare being changeable between its contracted state and a deployed state and formed by a plurality of filaments defining proximal and distal sections interconnected to each other, the proximal section having a longitudinal axis; wherein the filaments extend from a proximal end of the proximal section towards the distal section, and then return to the proximal end to form a plurality of loops, wherein the loops are interlaced with each other only within the proximal section, while being free within the distal section in the deployed state, wherein the filaments forming sides of at least a part of the filament loops are bent at least one time to define a sequence of straight wire segments angled with respect to each other within the proximal and distal sections, when viewed from a plane substantially parallel to the longitudinal axis, and arcuate into arcs at a distal end of the distal section.