Pacing method and apparatus
First Claim
1. A pacing system comprising:
- a medical lead including;
a lead body having at least one conductor with an electrically insulative sleeve positioned over the conductor;
an electrode disposed at a distal end of the lead body, the electrode co-linear to the lead body, said electrode electrically connected to the conductor, said electrode having a shape adapted to provide fixation into tissue of a heart;
an electrically insulative material masking proximal and distal ends of the electrode; and
an intermediate unmasked conductive portion of the electrode positioned between the masked proximal and distal ends of the electrode, wherein the medical lead adapted to couple to one of a HIS bundle and a right ventricular septum of a heart,wherein the distal end of the electrode being masked along a sufficient length of the electrode such that insertion of only the masked distal end and the unmasked portion in the heart tissue provides stable fixation.
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Accused Products
Abstract
The present invention provides for a method and apparatus providing pacing to improve the hemodynamics of the heart for patients with AV nodal block, right/left bundle branch block, and heart failure. A lead body having at least one conductor with an insulative sleeve is introduced into the right atrium of a heart. A partially masked helical electrode connected to the conductor is then secured preferably into the atrial aspect of the atrioventricular septum. The electrical conductor is then rotated such that an unmasked portion of the electrode is moved to a depth within the heart tissue substantially near the heart'"'"'s intrinsic conduction system. This method and apparatus allow pacing in a natural manner via low power stimulation of the heart'"'"'s intrinsic conduction system.
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Citations
22 Claims
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1. A pacing system comprising:
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a medical lead including; a lead body having at least one conductor with an electrically insulative sleeve positioned over the conductor; an electrode disposed at a distal end of the lead body, the electrode co-linear to the lead body, said electrode electrically connected to the conductor, said electrode having a shape adapted to provide fixation into tissue of a heart; an electrically insulative material masking proximal and distal ends of the electrode; and an intermediate unmasked conductive portion of the electrode positioned between the masked proximal and distal ends of the electrode, wherein the medical lead adapted to couple to one of a HIS bundle and a right ventricular septum of a heart, wherein the distal end of the electrode being masked along a sufficient length of the electrode such that insertion of only the masked distal end and the unmasked portion in the heart tissue provides stable fixation. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A method for stimulating a heart comprising the steps of:
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introducing a lead body having at least one conductor with an insulative sleeve into the right side of a heart; connecting a partially masked helical electrode with the at least one conductor, the electrode co-linear to the lead body with an electrically insulative material masking proximal and distal ends of the electrode; securing the partially masked helical electrode, adapted to couple, to one of a HIS bundle and a right bundle branch of a heart; and rotating the electrical conductor such that an unmasked portion of the electrode being at a depth substantially near the heart'"'"'s intrinsic conduction system to provide low power paced stimulation of the intrinsic conduction system; wherein the distal end of the electrode being masked along a sufficient length of the electrode such that rotation of only the masked distal end and the unmasked portion into the heart tissue provides stable fixation. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21, 22)
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Specification