Patent ID: 6743228
Filing Date: 2004-06-01
Classification: A61B

Abstract:
A tissue severing device, comprising:a guide comprising two co-linear, co-extensive guide lumens longitudinally extending from a proximal region to a distal terminus along a guide axis, wherein the guide lumens have co-extensive distal segments terminating in distal tips and deformable regions immediately proximal to the distal segments, said deformable regions facilitate in changing the direction of the distal segments with respect to the guide axis; a cutting tool contained within the guide and capable of forming a cutting loop extending from the distal tips of the two guide lumens, said cutting loop having a loop extension axis defined by the direction in which the cutting loop extends; an extension means for controlling the degree to which the cutting loop extends from the guide; and a distal segment positioning means for varying the direction of each distal segment with respect to the guide axis to thereby adjust the angle between the loop extension axis and the guide axis and selectively position the cutting loop with respect to the guide axis.