Patent ID: 6280451
Filing Date: 2001-08-28
Classification: A61B

Abstract:
A medical device, comprising:a proximal handle;a sheath extending distally from the handle and including a lumen extending therethrough from a distal end of the sheath to a proximal end of the sheath; and at least two opposing loops having a collapsed position in which the loops are collapsed within the lumen of the sheath and another position in which the loops extend from the distal end of the sheath and out of the lumen, the loops being joined at a base and unattached to each other at their distal ends, the loops being moveable between an open position and a closed position with the loops being closer together at their distal ends when in the closed position than when in the open position to allow capture and release of material, at least one of the loops having a different length from the base to its distal end than at least one other of the loops, the loops moving between the closed and open positions by transitioning the loops between the collapsed position and the other position.