System for improving diastolic dysfunction
AssigneeKardium Inc.
InventorsSamuel Victor Lichtenstein, Daniel Gelbart
Life of this patent
Estimating the term…
Abstract
An elastic structure is introduced percutaneously into the left ventricle and attached to the walls of the ventricle. Over time the structure bonds firmly to the walls via scar tissue formation. The structure helps the ventricle expand and fill with blood during the diastolic period while having little affect on systolic performance. The structure also strengthens the ventricular walls and limits the effects of congestive heart failure, as the maximum expansion of the support structure is limited by flexible or elastic members.
Claims25
-12. (canceled)
A cardiac medical device, comprising:
- a plurality of elastic arms physically coupled together, the elastic arms movable between a first configuration in which the medical device is sized to be inserted into a left ventricle of a heart and a second configuration in which the plurality of elastic arms physically engage portions of a wall that forms the left ventricle to assist an expansion of the left ventricle during a diastolic phase of a cardiac cycle, a first one of the elastic arms bearing a first magnetic orientation and a second of the elastic arms bearing a second magnetic orientation, opposite the first magnetic orientation;
- and
- at least one flexible cross-member expansion limiter structure coupled to a respective pair of the elastic arms across the structure to limit an expansion of the elastic arms to prevent a ventricular enlargement.
A cardiac medical device for percutaneously implantation via a catheter and a flexible cable, cardiac medical device comprising:
- a connector bearing at least one thread that is selectively threadedly engageable and disengageable from the flexible cable;
- a plurality of elastic arms physically coupled together by the connector, the elastic arms movable between a first configuration in which the medical device is sized to be inserted into a left ventricle of a heart and a second configuration in which the plurality of elastic arms physically engage portions of a wall that forms the left ventricle to assist an expansion of the left ventricle during a diastolic phase of a cardiac cycle;
- and
- at least one flexible cross-member expansion limiter structure coupled to a respective pair of the elastic arms across the structure to limit an expansion of the elastic arms to prevent a ventricular enlargement.
Dependencies are inferred from the claim text.