Patent ID: 6385492
Filing Date: 2002-05-07
Classification: A61N

Abstract:
A system for the stimulation of the myocardium in the coronary venous system, for an active implantable medical device, comprising:a probe body, including a hollow sheath, the hollow sheath being elastically deformable, the probe body having a distal extremity having thereon at least one stimulation electrode and having a naturally bent form; and a removable stylet, adapted to be introduced and movable inside the hollow sheath of the probe body, said stylet being more rigid than the hollow sheath and plastically deformable at any point along its length; wherein the probe distal extremity in the absence of stress comprises a first curve comprised in a first surface and a second curve comprised in a second surface distinct from the first surface, the first surface corresponding to a support curve in a first plane defined by the naturally bent form of the probe distal extremity, characterized in that the probe distal extremity is an auto-orienting extremity, and wherein the at least one stimulation electrode further comprises a sectoral electrode having an active surface extending in a radial plane on only one sector of the probe body, said radial plane being perpendicular to said first plane, said first curve and said second curve cooperating to position said sectoral electrode against the myocardium when said probe body distal end is in said coronary venous system.