Patent ID: 6076019
Filing Date: 2000-06-13
Classification: A61N

Abstract:
An implantable pacing lead for DDD pacing of a patient's heart, said lead comprising:a proximal end and a distal end, and a lead body extending therebetween;said lead body comprising:a ventricular section extending to said distal end for positioning in the patient's ventricle and having a first pre-stressed portion with a first radius of curvature;an intermediate section proximal to said ventricular section for positioning intermediate the patient's atrium and ventricle and having a second pre-stressed portion with a second radius of curvature; andan atrial section proximal to said intermediate section for positioning in the patient's atrium and having a third pre-stressed portion with a third radius of curvature;said ventricular, intermediate and atrial sections having flexibility sufficient so that said atrial section is maintained in proximity to the patient's atrial wall during heart contractions;at least one atrial electrode positioned within said atrial section and an atrial conductor within said body connecting said proximal end to said atrial electrode; andat least one ventricular electrode positioned within said ventricular section at about said distal end and a ventricular conductor within said body connecting said proximal end to said ventricular electrode;wherein said ventricular section begins at a point on said lead located from about 90 mm to about 150 mm from said distal end of said lead and extends to said distal end of said lead, said intermediate section begins at a point on said lead located from about 120 mm to about 170 mm from said distal end of said lead and extends to said beginning of said ventricular section, and said atrial section begins at a point on said lead located from about 150 mm to about 200 mm from said distal end of said lead aid extends to said beginning of said intermediate section.