Patent ID: 7957819

Claim:
A low profile transvenous electrode system for heart block use in an emergency situation for sequentially pacing both the atrium and ventricle of a human heart rapidly and reliably in a dual chamber mode comprising: an external pacemaker including two sequential pulse generators that can provide sensing and stimuli for a ventricle and an atrium; a plurality of individually insulated electrical wires bundled together to form at least two separate in-line sets of conductive electrodes, one set for the ventricle chamber and one set for the atrium chamber, said set of atrium conductive electrodes comprising four wires, said set of ventricle conductive electrodes comprising five wires, each set of bundled conductive electrodes forming a single cable-like structure; a flexible retaining sheath disposed over said plurality of bundled conductive wires providing a sheath that can be used for insertion of the wire bundles into the heart chambers, said sheath being movable from said wires once inserted into the heart for exposing the wires to the ventricular chamber and the atrium chamber, said sheath being entirely removed from the atrium and ventricle when the transvenous electrode system is engaged; each of said wires being configured with a certain resiliency and shape to engage resiliently once released from the sheath against a specific point or area within the ventricle chamber and within the atrium chamber providing a plurality of electrodes disposed within each chamber, each of said ventricular electrodes connected to a ventricular sensor or stimulator in said external pacemaker and said plurality of atrium conductors connected to an atrium sensor or stimulator in said external pacemaker; and wherein said separate in-line sets of conductive electrodes being configured to pace and sense both atrial and ventricular chambers and provide dual chamber control of the heart.