Patent ID: 9033996
Filing Date: 2015-05-19
Classification: A61B,A61M,A61N

Abstract:
1. A method of introducing pacing therapy within a heart of a subject comprising: introducing into the heart of the subject a sheath positioned in the right atrium wherein a distal end of the sheath is in a substantially vertical position wherein the sheath has an open proximal end in communication with an open distal end and wherein the sheath is shaped with a curve; customizing a guiderail catheter into a shape compatible with the subject's anatomy wherein the guiderail catheter comprises a biocompatible polymer coating covering elements that provide for shapeability of the guiderail catheter into a J curve at the distal end and an about 1:1 torque of the guiderail catheter from a proximal handle of the guiderail catheter to a distal tip of the guiderail catheter, a radiopaque marker positioned at the distal end of the guiderail catheter; introducing the guiderail catheter into the heart of the subject through the distal end of the sheath; imaging with a fluoroscope the position of the sheath and guiderail catheter within the heart; advancing the distal end of the guiderail catheter about 10-15 cm past the distal end of the sheath into the right atrium of the heart to a position along the wall of the septum while maintaining at least some portion of the J curve previously shaped into the distal end of the guiderail catheter; applying counter clockwise torque as the guiderail catheter is withdrawn while maintaining contact with the interatrial septum until the distal end of the catheter enters into the coronary sinus (“CS”); advancing the distal end of the guiderail catheter into the CS; advancing the sheath along the guiderail catheter while applying retrograde traction on the guiderail catheter to rail the sheath over the guiderail catheter to a position within the CS and maintaining an alignment of the contours of the guiderail catheter and the sheath; and withdrawing the guiderail catheter from the proximal end of the sheath to introduce pacing therapy.