Non-Invasive Blood Flow Measurement
AssigneeZOLL Medical Corporation
InventorGary A. Freeman
Life of this patent
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Abstract
A system for determining blood flow to and from the brain of a patient includes a plurality of magnetic elements configured to be positioned adjacent to the neck of the patient and apply at least one magnetic field to the neck of the patient. The system includes a plurality of electrodes configured to be in electrical contact with the neck of the patient, the electrodes configured to detect a voltage induced across the neck of the patient responsive to the applied magnetic field and blood flow through the neck of the patient. The system includes a support component for holding the plurality of magnetic elements and the plurality of electrodes at the neck of the patient.
Claims36
A system for determining blood flow to and from the brain of a patient comprising:
- at least one output generator configured to be positioned adjacent to the neck of the patient and having a current source and two or more magnetic coils configured to generate a time-varying magnetic field at the neck of the patient;
- at least one sensor configured to be positioned adjacent to the neck of the patient, the at least one sensor configured to detect a voltage or electric field induced responsive to the time-varying magnetic field and blood flow through the neck of the patient;
- a support component for holding the at least one output generator and the at least one sensor at the neck of the patient;
- and
- a processor, with memory, power supply and other processing components, the processor configured to estimate a distribution of the induced voltage or electric field, and to estimate blood flow through the neck based at least in part on the estimated distribution of the induced voltage or electric field.
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Dependencies are inferred from the claim text.