Patent ID: 8147424
Filing Date: 2012-04-03
Classification: A61B,A61M,A61N

Abstract:
1. A system for obtaining a tissue sample from a targeted tissue, the system comprising: a first catheter having a proximal end, distal end, and an interior, the distal end of the first catheter comprising a cutting portion adapted to cut a targeted biological tissue; a second catheter slidably received within the interior of the first catheter, the second catheter having a proximal end, an interior, a distal end adapted to puncture the targeted tissue, and an opening disposed proximal to the distal end of the second catheter and in communication with the interior of the second catheter; a torque mechanism comprising at least one dial coupled with at least one shaft, the at least one dial configured for rotational movement and the at least one shaft adapted to convert the rotational movement of the at least one dial into linear movement of the at least one shaft, the at least one shaft coupled with the first catheter such that the at least one shaft is adapted to advance and retract the first catheter, and the at least one shaft coupled with the second catheter such that the at least one shaft is adapted to advance and retract the second catheter; and a deliver catheter comprising an elongated tube having a proximal end, a distal end, a wall, and a first lumen and a second lumen, the delivery catheter adapted for at least partial intravascular insertion into a mammalian body, and the at least one lumen of the delivery catheter extending from approximately the proximal end of the tube to or near the distal end of the tube and comprising a bend relative to the tube at or near the distal end of the tube and an outlet through the wall of the tube at or near the distal end of the tube, the first and second lumens each extending from approximately the proximal end of the tube to or near the distal end of the tube, each positioned longitudinally adjacent to each other, and each comprising a bend relative to the tube at or near the distal end of the tube and an outlet through the wall of the tube at or near the distal end of the tube, the first lumen of the delivery catheter having the catheter slidably disposed therein, and the second lumen of the delivery catheter having a navigational tool disposed therein, the navigational tool configured to be advanceable through the outlet of the second lumen.