Patent ID: 9550058
Date: 2017-01-24
CPC Classifications: A61N

Claim:
1. A medical stylet for use in delivering and anchoring an implantable medical lead to a desired location near or in a patient's heart, the medical stylet comprising: an inner member, having a distal end portion and a proximal end portion, wherein the distal end portion includes a tip feature, the tip feature configured to rotationally engage a coupling feature at or near a distal end of the implantable medical lead, the coupling feature rotationally coupled to an anchoring mechanism including a fixation feature; and an outer member defining a lumen along its length, the lumen configured to accept and allow rotation of at least a portion of inner member, the outer member having a predetermined shape and having sufficient stiffness to impart the shape upon the lead, the shape selected to assist in delivery of the lead to the desired implant location; wherein the inner member has sufficient torsional stiffness to transmit a torque from the proximal end portion to the coupling feature, so as to rotate the anchoring mechanism; and the distal end portion of the inner member has a diameter larger than a diameter of the outer member lumen.