Obtaining cardiovascular parameters using arterioles related transient time
First Claim
Patent Images
1. A method for estimation of inner diameter of arterioles in measured body part, the method comprising:
- obtaining a first pressure wave signal from a first tissue volume beneath the surface of a part of a subject'"'"'s body, containing blood vessels;
wherein contribution in the first signal from artery-like blood vessels predominates over contribution from arteriole-like blood vessels;
obtaining a second pressure wave signal from a second tissue volume beneath the surface of the part of the subject'"'"'s body, containing blood vessels;
wherein contribution in the second signal from arteriole-like blood vessels predominates over contribution from artery-like blood vessels;
obtaining at least one concurrent heart rate value;
finding time delay values between the first signal and the second signal; and
using said at least one value of the time delay values and said at least one heart rate value to calculate an equivalent inner diameter of said arterioles.
2 Assignments
0 Petitions
Accused Products
Abstract
Methods for monitoring equivalent inner diameter of arterioles by measuring blood pressure wave transient time from small arteries to arterioles and calculating, from the transient time and concurrently measured heart rate values, an equivalent inner diameter of arterioles.
-
Citations
15 Claims
-
1. A method for estimation of inner diameter of arterioles in measured body part, the method comprising:
-
obtaining a first pressure wave signal from a first tissue volume beneath the surface of a part of a subject'"'"'s body, containing blood vessels;
wherein contribution in the first signal from artery-like blood vessels predominates over contribution from arteriole-like blood vessels;obtaining a second pressure wave signal from a second tissue volume beneath the surface of the part of the subject'"'"'s body, containing blood vessels;
wherein contribution in the second signal from arteriole-like blood vessels predominates over contribution from artery-like blood vessels;obtaining at least one concurrent heart rate value; finding time delay values between the first signal and the second signal; and
using said at least one value of the time delay values and said at least one heart rate value to calculate an equivalent inner diameter of said arterioles. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
-
Specification