Lesion prediction based in part on tissue characterization
AssigneeSt. Jude Medical, Cardiology Division, Inc.
InventorsJeffrey M. Fish, Lynn E. Clark
Life of this patent
Estimating the term…
Abstract
A method for determining a predicted lesion size formed in a tissue by receiving or calculating a measure of contact force between the electrode and the tissue, determining a tissue characterization, and calculating the predicted lesion size using both the measure of contact force and the tissue characterization. A system comprising an electronic control unit configured to receive or determine a measure of contact force between the electrode and the tissue, characterize the tissue based on both the measure of impedance and the measure of contact force, and cause the tissue characterization to be either (a) presented to a user, or (b) applied to calculate a metric and cause the metric to be presented to the user.
Claims21
A system, comprising:
- an electronic control unit (ECU) configured to:
- receive or determine a measure of an impedance between an electrode and tissue of a patient;
- receive or determine a measure of contact force between the electrode and the tissue;
- characterize the tissue based on both the measure of impedance and the measure of contact force;
- and
- cause the tissue characterization to be either
- (i) presented to a user, or
- (ii) applied to calculate a metric and cause the metric to be presented to the user.
A method comprising:
- receiving or determining a measure of impedance between an electrode and a tissue of a patient;
- receiving or determining a measure of contact force between the electrode and the tissue;
- characterizing the tissue based on a ratio of the measure of impedance between the electrode and the tissue to the measure of contact force;
- and
- causing the tissue characterization to be presented to a user, or applying the tissue characterization to calculate a metric and causing the metric to be presented to the user.
A system, comprising:
- an electronic control unit (ECU) configured to:
- receive or determine a measure of energy applied from an electrode to tissue of a patient;
- receive or determine a measure of an impedance between the electrode and the tissue;
- receive or determine a measure of contact force between the electrode and the tissue;
- calculate a ratio of the measure of impedance to the measure of contact force;
- calculate a size of a lesion in the tissue according to the measure of energy applied and the ratio of the measure of impedance to the measure of contact force;
- and
- cause the lesion size to be presented to a user.
Dependencies are inferred from the claim text.