Patent ID: 6188931
Filing Date: 2001-02-13
Classification: A61N

Abstract:
An implantable lead for an implantable active device, comprising at least two electrodes and having a proximal end adapted for electrical and mechanical connection to said active device, and a distal end opposite said proximal end, a ventricular electrode carried at the distal end of said lead for sensing and/or electrical interaction with a ventricle an atrial electrode carried on said lead for sensing and/or electrical interaction with an atrium, said atrial electrode being disposed between the proximal end and said ventricular electrode, a first part disposed at the distal end and having a first predetermined length, between 9-13 cm, and exhibiting a first stiffness, and a second part, disposed adjacent to said first part said a second part having a second predetermined length which exceeds 15 cm, and a second stiffness, said second stiffness of said second part producing a stiffness adapted to force the atrial electrode in contact with an atrial wall when implanted, said second stiffness being greater than said first stiffness, and a transition point between said first part and said second part situated at the proximal end of said first part, said second part having a radius of curvature exceeding 20 cm.