Patent ID: 6241726
Filing Date: 2001-06-05
Classification: A61B

Abstract:
A catheter system comprising:(a) a catheter sheath having a distal section, a distal end, a proximal end, and at least one lumen extending between the distal end and the proximal end;(b) a handle attached to the proximal end of said catheter sheath;(c) an inner catheter, which is longer than said catheter sheath and is located inside the lumen of the catheter sheath comprising a flexible elongate tubular member having a distal section, a proximal extremity and a distal extremity, at least one electrode mounted on the distal section of the flexible elongate tubular member of the inner catheter, and wherein said handle is attached to the proximal extremity of the inner catheter;(d) the distal section of said catheter sheath having a means for retractable electrode-tine fixation deployment secured at a securing point on the flexible elongate tubular member of the inner catheter, wherein the securing point is located proximal to the distal section of the flexible elongate tubular member of the inner catheter, and wherein said means for retractable electrode-tine fixation deployment includes a plurality of spaced apart expandable members, wherein a means for retractable electrode-tine fixation has a non-deployed state and a distended deployed state, wherein the non-deployed state is adapted for advancing and removing the catheter and the distended deployed state is adapted for fixing the catheter to a targeted location; and(e) the expanded spaced apart expandable members of the means for retractable electrode-tine fixation at a distended deployed state having an outermost region, wherein the outermost region comprises needle penetrating means for securing the outermost region on a tissue firmly at the distended deployed state wherein the needle penetrating means in the deployed state points to the distal section of the inner catheter.