Systems and methods for non-invasive determination of blood pressure
First Claim
Patent Images
1. A method for determining a blood pressure measurement, comprising:
- receiving, from a sensor, an electronic signal responsive to an occluding device applied to a patient;
using processor equipment for;
transforming the electronic signal into a transformed signal based at least in part on a continuous wavelet transformation,generating a scalogram based at least in part on the transformed signal, wherein the scalogram comprises 3-dimensional information,identifying, within the scalogram, a ridge indicative of the patient'"'"'s blood flow as a function of time, anddetermining a blood pressure measurement based at least in part on the identified ridge; and
outputting the blood pressure measurement to an output device.
1 Assignment
0 Petitions
Accused Products
Abstract
Methods and systems for determining blood pressure from a pressure signal are disclosed. A patient'"'"'s blood pressure may be determined by analyzing features of a wavelet transformation of a pressure signal obtained during an occlusion procedure. Ridges in a scalogram of the transformed signal may be identified and used to determine an envelope of a pressure oscillation signal, to which oscillometric blood pressure determination techniques may be applied.
-
Citations
20 Claims
-
1. A method for determining a blood pressure measurement, comprising:
-
receiving, from a sensor, an electronic signal responsive to an occluding device applied to a patient; using processor equipment for; transforming the electronic signal into a transformed signal based at least in part on a continuous wavelet transformation, generating a scalogram based at least in part on the transformed signal, wherein the scalogram comprises 3-dimensional information, identifying, within the scalogram, a ridge indicative of the patient'"'"'s blood flow as a function of time, and determining a blood pressure measurement based at least in part on the identified ridge; and outputting the blood pressure measurement to an output device. - View Dependent Claims (2, 3, 4, 5, 6, 7)
-
-
8. A system for determining a blood pressure measurement, comprising:
an occluding device capable of being applied to a patient; a sensor, coupled to the occluding device, that outputs an electronic signal responsive to the occluding device when the occluding device is applied to the patient; processor equipment, coupled to the sensor, the processor equipment being capable of; transforming the electronic signal into a transformed signal based at least in part on a continuous wavelet transformation, generating a scalogram based at least in part on the transformed signal, wherein the scalogram comprises 3-dimensional information, identifying, within the scalogram, a ridge indicative of the patient'"'"'s blood flow as a function of time, determining a blood pressure measurement based at least in part on the identified ridge; and an output device, coupled to the processor equipment, for outputting the blood pressure measurement. - View Dependent Claims (9, 10, 11, 12, 13, 14)
-
15. Non-transitory computer-readable medium for use in determining a blood pressure measurement, the computer-readable medium having computer program instructions recorded thereon for:
-
receiving, from a sensor, an electronic signal responsive to an occluding device applied to a patient, transforming the electronic signal into a transformed signal based at least in part on a continuous wavelet transformation, generating a scalogram based at least in part on the transformed signal, wherein the scalogram comprises 3-dimensional information, identifying, within the scalogram, a ridge indicative of the patient'"'"'s blood flow as a function of time, determining a blood pressure measurement based at least in part on the identified ridge, and outputting the blood pressure measurement to an output device. - View Dependent Claims (16, 17, 18, 19, 20)
-
Specification