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US 7,412,289 B2Granted
Multi-electrode lead
AssigneeImpulse Dynamics (Israel) LTD
InventorsDov Malonek, Nissim Darvish, Judith Kornfeld
Life of this patent
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Abstract
This invention is a lead (10) for modifying the activity of a tissue, particularly the heart. Electrodes are provided for performing sensing (15p) (15d), and/or signal delivery (16p) (16d) functions. A control unit controls the parameters of the electric field provided by signal delivery electrodes to prevent the generation of a propagation action potential in the tissue.
Claims30
A lead for modifying the activity of at least a portion of a tissue, said lead comprising:
- at least one signal delivery electrode in the form of a flexible circumferential element positioned around the lead, having a diameter less than 1.5 mm, and having capacitance greater than 300 microfarads and less than 3000 microfarads, wherein the electrode is adapted to withstand chronic delivery to said at least portion of tissue a non-excitatory electric field having an amplitude and duration suitable to modify the contractility of a human cardiac muscle when applied during a refractory period of said muscle;
- and
- a connector adapted to connect to said at least one signal delivery electrode for enabling said at least one signal delivery electrode to be operatively connected to control circuitry.
Dependencies are inferred from the claim text.