Patent ID: 6264663
Filing Date: 2001-07-24
Classification: A01N,A61B,A61F

Abstract:
An instrument for manipulating an object in a body canal, cavity or organ, the instrument comprising:a first linkage having a proximal end and a distal end;a sheath having the first linkage slidably received in a bore thereof;a frame having a proximal end attached to the distal end of the first linkage, a distal end extendible from and retractable into the sheath by the first linkage and formed of a shape-memory-effect material trained to form at least a partial loop when extended beyond the sheath, and a pair of control arms that are positioned in the bore of the sheath when the frame is retracted into the sheath and which diverge from the bore to the at least partial loop when the distal end of the frame is extended beyond the sheath, the at least partial loop formed continuous between the pair of control arms;a sack having a mouth attached to the at least partial loop and a closed end opposite the mouth, the mouth of the sack is opened and closed when the pair of control arms are extended from and retracted into the sheath; anda second linkage connected to the closed end of the sack and which extends therefrom through the mouth of the sack to an exterior thereof when the sack is opened for urging the closed end of the sack toward the mouth of the sack.