Expandable cardiac harness for treating congestive heart failure
AssigneeParacor Surgical, Inc.
InventorsLilip Lau, Bill Hartigan
Life of this patent
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Abstract
A cardiac harness for treating congestive heart failure is disclosed. The harness applies elastic, compressive reinforcement on the left ventricle to reduce deleterious wall tension and to resist shape change of the ventricle during the mechanical cardiac cycle. Rather than imposing a dimension beyond which the heart cannot expand, the harness provides no hard limit over the range of diastolic expansion of the ventricle. Instead, the harness follows the contour of the heart throughout diastole and continuously exerts gentle resistance to stretch. Also disclosed is a method of delivering the cardiac harness to the heart minimally invasively.
Claims13
A method, comprising;
- providing a cardiac harness sized and configured to fit around at least a ventricle of a patient's heart;
- providing at least one pad having in a marginal edge;
- arranging the pad marginal edge in proximity to but not impinging upon a coronary artery;
- and
- placing the cardiac harness on the heart so that the harness extends over the pad and coronary artery.
A method, comprising:
- providing a cardiac harness sized and configured to fit around at least a ventricle of a patient's heart, the harness comprising a slot formed therein;
- and
- arranging the cardiac harness on the heart so that the slot is generally aligned with a substantial portion of the length of at least one coronary artery selected from the group consisting of the left anterior descending artery, the right coronary artery, the left circumflex artery, the posterior descending artery, and the obtuse marginal artery.
Dependencies are inferred from the claim text.