Combined active current location (ACL) and tissue proximity indication (TPI) system
AssigneeBiosense Webster (Israel) Ltd.
InventorsVadim Gliner, Assaf Govari
Life of this patent
Estimating the term…
Abstract
A method includes transmitting electrical signals between one or more pairs of body-surface electrodes attached to a body of a patient. Electrical potentials resulting from the transmitted electrical signals are acquired by an outer-facing electrode and an inner-facing electrode of a medical probe inserted in an organ of the patient. A proximity of the medical probe to surface tissue of the organ is estimated based on the electrical potentials acquired by the outer-facing electrode. A position of the medical probe within the organ is estimated based on the electrical potentials acquired by the inner-facing electrode.
Claims16
A method, comprising:
- transmitting electrical signals between one or more pairs of body-surface electrodes attached to a body of a patient;
- acquiring, by an outer-facing electrode and an inner-facing electrode of a medical probe inserted in an organ of the patient, electrical potentials resulting from the transmitted electrical signals, the outer-facing electrode and the inner-facing electrodes being electrically isolated from each other;
- based on the electrical potentials acquired only by the outer-facing electrode, estimating a proximity of the outer-facing electrode to surface tissue of the organ;
- based on the electrical potentials acquired only by the inner-facing electrode, estimating a position of the inner facing electrode within the organ;
- and
- estimating a position of the outer-facing electrode within the organ based on the electrical potentials acquired by the inner facing electrode.
A system, comprising:
- one or more pairs of body-surface electrodes, which are configured to be attached to a body of a patient and to transmit electrical signals into the body;
- and
- a processor, which is configured to:
- receive signals indicative of electrical potentials that are acquired by an outer-facing electrode and an inner-facing electrode of a medical probe inserted in an organ of the patient, resulting from the transmitted electrical signals, the outer-facing electrode and the inner-facing electrodes being electrically isolated from each other;
- based on the signals indicative of the electrical potentials acquired only by the outer-facing electrode, estimate a proximity of the medical probe to surface tissue of the organ;
- based on the signals indicative of the electrical potentials acquired only by the inner-facing electrode, estimate a position of the inner-facing electrode within the organ;
- and
- estimating a position of the outer-facing electrode within the organ based on the electrical potentials acquired by the inner facing electrode.
Dependencies are inferred from the claim text.