Retrieval system

A system for retrieving material or objects from a biological vessel comprising:

• (a) an elongated braid structure including a plurality of helically wound wires crossing a plurality of counter-helically wound wires wherein at least some of said plurality of helically wound wires cross said plurality of counter-helically wound wires at an angle of 70-120 degrees, wherein a distal end of said elongated braid structure forms a plurality of wire loops and a distal portion of said elongated braid structure includes eyelets, and wherein said eyelets are in a different plane than a plane of said plurality of wire loops, said elongated braid structure configured for transitioning between collapsed and expanded states, said elongated braid structure surrounding a lumen having a distal opening when in said expanded state;
• and (b) a closure wire positioned along a length of said elongated braid structure, said closure wire being actuatable to pull inward said distal portion of said elongated braid structure and thereby at least partially close said distal opening;
• wherein said closure wire is positioned such that said distal portion of said elongated braid structure is not pulled inward when said elongated braid structure is bent along said length.