초록 ▼

An atrial lead system and a method of employing it to provide single electrode bi-atrial pacing. The system includes an atrial pacing lead having electrode located on a distal portion thereof and a guide catheter having a longitudinal lumen and a lateral aperture open to the longitudinal lumen of th

An atrial lead system and a method of employing it to provide single electrode bi-atrial pacing. The system includes an atrial pacing lead having electrode located on a distal portion thereof and a guide catheter having a longitudinal lumen and a lateral aperture open to the longitudinal lumen of the catheter proximal to a distal end of the catheter through which the distal portion of the lead may be advanced. The electrode is preferably an active fixation electrode or is associated with an active fixation device. The system is employed by first advancing the guide catheter to the ostium of a patient's coronary sinus and inserting the distal end of the guide catheter into the coronary sinus such that the lateral aperture of the catheter is located in the patient's right atrium. The atrial pacing lead is then advanced through the lumen of the guide catheter such that the electrode exits the lateral aperture of the guide catheter and the electrode is affixed to the tissue of the atrial septum.

대표청구항 ▼

[ In conjunction with the above disclosure, I claim:] [1.]1. An atrial pacing lead system for accurately locating an atrial pacing electrode in the atrial septum adjacent and substantially above the ostium of the coronary sinus comprising:an atrial pacing lead having an electrode located on a distal

[ In conjunction with the above disclosure, I claim:] [1.]1. An atrial pacing lead system for accurately locating an atrial pacing electrode in the atrial septum adjacent and substantially above the ostium of the coronary sinus comprising:an atrial pacing lead having an electrode located on a distal portion thereof, anda guide catheter having means for deflecting a distal portion into a serpentine configuration upon deployment that locates a distal end of the catheter proximate the ostium of the coronary sinus and having a longitudinal lumen with an aperture proximal to the distal end of the catheter through which the atrial pacing lead is to be passed and the distal portion of the lead advanced from the aperture to position the electrode in the atrial septum at the desired location wherein the distal portion of said guide catheter includes means for deflecting to form first and second generally planar oppositely directed curves, the second curve being proximal to the first curve, and wherein said lateral aperture is located on an exterior portion of said second curve.