Medical electrical right atrium and coronary sinus lead
First Claim
1. A medical electrical lead comprisingmeans for electrically coupling to a pulse generatora lead body coupled to the means for electrically coupling, the lead body having a first distal end, a second proximal end, the lead body comprising a conductor insulated by an insulative sheath,a first electrode positioned along the lead body;
- a second electrode positioned along the lead body and proximal to the first electrode; and
means for simultaneously bringing the first electrode into contact with a coronary sinus wall and the second electrode into contact with a right atrial wall.
1 Assignment
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Accused Products
Abstract
A transvenous lead specifically designed for multi-chamber electrical stimulation or sensing. In a first embodiment the lead features one or more electrodes for communication with the right atrium as well as one or more electrodes for communication with either or both of the left chambers of the heart. The lead further features structures to simultaneously bring the first electrode into contact with a first chamber, such as the right atrial wall and the second electrode into contact with a particular portion of the coronary sinus wall, to electrically access the left atrium or ventricle. In the preferred embodiment the lead body has varying flex or stiffness characteristics along its length between each of the electrodes. The relation of the varying flex or stiffness characteristics along the lead body length as well as the various linear placements of the electrodes along the lead body length function to simultaneously bring the first electrode into contact with a first desired portion of the heart, such as the right atrial wall, and the second electrode into contact with a second desired portion of the heart, such as a portion of the coronary sinus wall.
121 Citations
20 Claims
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1. A medical electrical lead comprising
means for electrically coupling to a pulse generator a lead body coupled to the means for electrically coupling, the lead body having a first distal end, a second proximal end, the lead body comprising a conductor insulated by an insulative sheath, a first electrode positioned along the lead body; -
a second electrode positioned along the lead body and proximal to the first electrode; and means for simultaneously bringing the first electrode into contact with a coronary sinus wall and the second electrode into contact with a right atrial wall. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A medical electrical lead comprising
means for electrically coupling to a pulse generator; -
a lead body coupled to the means for electrically coupling, the lead body having a first distal end, a second proximal end, the lead body comprising a conductor insulated by an insulative sheath, the first distal end comprises a tapered blunt nosed portion, a lumen in the lead body communicating from the second proximal end to a lumen end point, the lumen end point proximal to the first distal end; a first electrode positioned along the lead body at a point proximal to the lumen end point, the first electrode is a whole ring electrode and has a first diameter and the lead body has a lead body diameter, the first electrode diameter greater than the lead body diameter by an amount of at least 1 mm greater than the lead body diameter; a second electrode positioned along the lead body and proximal to the first electrode; and means for simultaneously bringing the first electrode into contact with a coronary sinus wall and the second electrode into contact with a right atrial wall. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification