Patent ID: 9271746
Filing Date: 2016-03-01
CPC Classification: A61B,B21F,Y10T

Claim Text:
1. A retrieval snare for entrapping and retaining a foreign object located in a body for its extraction therefrom, the snare comprising: a structure having a proximal portion and a distal portion and including a plurality of filaments extending from a proximal end of the proximal portion to a distal end of the distal portion and returning to the proximal end to form a plurality of loops, each of the loops being formed by a single filament and being free and unattached to any adjacent loops at the distal portion including the distal end in a fully expanded condition, the proximal portion of each loop consisting of two proximal sides that are unattached to each other in the fully expanded condition, each of the proximal sides directly connected along the proximal portion to a proximal side of an adjacent loop at more than one connection point for structural rigidity and dilatation ability to the snare, the plurality of loops being configured to deploy radially outward in both the proximal portion and the distal portion and away from each other in the distal portion including the distal end during a movement from a compressed condition to the fully expanded condition.