Method and device for measuring peripheral vascular function
AssigneeSmithmarks, Inc.
InventorsMichael Smith, Lloyd Marks
Life of this patent
Estimating the term…
Abstract
A patient's peripheral pulse volume and blood pressure are measured. The quantities are used to obtain a quantitative measure of peripheral vascular function. The quantitative measure can be one or more of pulsatile limb blood flow, total limb blood flow, limb vascular compliance and limb vascular resistance.
Claims34
A method for quantitatively assessing a peripheral vascular function in a limb of a patient, the method comprising:
- (a) measuring a peripheral pulse volume per length PV in the limb of the patient;
- (b) measuring a blood pressure of the patient;
- and
- (c) calculating a quantity that is a mathematical function of the peripheral vascular function in the limb, using the peripheral pulse volume PV measured in step (a) and the blood pressure measured in step (b).
A system for quantitatively assessing a peripheral vascular function in a limb of a patient, the system comprising:
- a pulse volume meter for measuring a peripheral pulse volume per length PV in the limb of the patient;
- a blood pressure monitor for measuring a blood pressure of the patient;
- and
- a computing device for receiving the peripheral pulse volume and the blood pressure and for calculating a quantity that is a mathematical function of the peripheral vascular function in the limb, using the peripheral pulse volume and the blood pressure.
A method for quantitatively assessing a peripheral vascular function in a limb of a patient, the method comprising:
- (a) measuring a peripheral pulse volume per length PV in the limb of the patient;
- (b) measuring a blood pressure and a heart rate HR of the patient;
- and
- (c) calculating a quantity representing the peripheral vascular function in the limb, using the peripheral pulse volume PV measured in step (a) and the blood pressure measured in step (b), wherein step (c) comprises calculating a pulsatile flow PF as PF=PV×HR.
A system for quantitatively assessing a peripheral vascular function in a limb of a patient, the system comprising:
- a pulse volume meter for measuring a peripheral pulse volume per length PV in the limb of the patient;
- a blood pressure and heart rate monitor for measuring a blood pressure and a heart rate HR of the patient;
- and
- a computing device for receiving the peripheral pulse volume and the blood pressure and for calculating a quantity representing the peripheral vascular function in the limb, using the peripheral pulse volume and the blood pressure, wherein the computing device also calculates a pulsatile flow PF as PF=PV×HR.
Dependencies are inferred from the claim text.