Blood flow oxygen measurement system and method
AssigneeUSCOM Pty Ltd.
InventorRobert Phillips
Life of this patent
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Abstract
An apparatus for measuring physiologic tissues perfusion information including: a first device producing a first output indicative of blood flow of a patient; a second device producing a second output indicative of oxygen content of the blood; and a processor combining said first and said second outputs to produce a third output indicative of tissue perefusion.
Claims18
An apparatus for measuring physiologic tissue perfusion information including:
- a first device producing a first output indicative of blood flow of a patient;
- a second device producing a second output indicative of oxygen content of the blood;
- and
- a processor combining said first and said second outputs to produce a third output indicative of tissue perfusion.
A method of measuring physiologic tissue perfusion information including obtaining a measurement of blood flow of a patient and a measurement of blood oxygen content, and combining said measurements to produce an output indicative of tissue perfusion.
A method of creating a tissue perfusion index including:
- (a) obtaining a measurement of blood flow and a measurement of blood oxygen content from a patient;
- (b) combining said measurements to calculate a parameter indicative of tissue perfusion in said patient;
- (c) repeating steps (a) and (b) on a plurality of patients to obtain a set of calculations of said parameter for said plurality of patients;
- (d) processing the set of calculated parameters to obtain a statistically averaged index of said parameter for a population.
A method of creating a tissue perfusion index for healthy population including:
- (a) obtaining a measurement of blood flow and a measurement of blood oxygen content from a healthy patient;
- (b) combining said measurements to calculate a parameter indicative of tissue perfusion in said healthy patient;
- (c) repeating steps (a) and (b) on a plurality of healthy patients to obtain a set of calculations of said parameter for said plurality of patients;
- (d) processing the set of calculated parameters to obtain a statistically averaged index of said parameter for a healthy population.
A method of creating a tissue perfusion index for a population with a known condition including:
- (a) obtaining a measurement of blood flow and a measurement of blood oxygen content from a patient with said known condition;
- (b) combining said measurements to calculate a parameter indicative of tissue perfusion in said patient;
- (c) repeating steps (a) and (b) on a plurality of patients with said known condition to obtain a set of calculations of said parameter for said plurality of patients;
- (d) processing the set of calculated parameters to obtain a statistically averaged index of said parameter for a population with said known condition.
A method of diagnosing a condition in a patient including:
- (a) obtaining a measurement of blood flow and a measurement of blood oxygen content from a patient;
- (b) combining said measurements to calculate a parameter indicative of tissue perfusion in said patient;
- (c) comparing said calculated parameter with a statistically averaged index of said parameter to determine the extent to which said condition exists within said patient.
Dependencies are inferred from the claim text.