SYSTEMS AND METHODS FOR MONITORING THE CIRCULATORY SYSTEM
First Claim
Patent Images
1. A system for determining biological or physiological aspects relating to stiffness of at least one artery, the system comprising:
- a first sensor configured and arranged to capture, from a user in an upright position, a heart-related signal indicative of at least one of physical movement and mechanical output of the user'"'"'s heart and of the mechanical movement of blood through an aorta of the user; and
a second sensor configured and arranged to detect characteristics of the user at a distal artery location, the characteristics including a measurement of the volumetric change of an artery or organ of the user; and
a logic circuit that is configured and arranged to process information provided from the first sensor and from the second sensor,the logic circuit being configured and arranged to generate arterial pulse wave velocity based on portions of the heart-related signal that are indicative of a pressure pulse of an ascending portion of the aorta, the characteristics of the user at a distal artery location and a distance between the aorta and the distal artery location, wherein the arterial pulse wave velocity is indicative of the biological or physiological aspects relating to the arterial stiffness.
1 Assignment
0 Petitions
Accused Products
Abstract
In accordance with embodiments of the present disclosure, a ballistocardiogram (BCG) sensor is used to detect heart and vascular characteristics of a user, and provide a BCG output indicative of the detected cardiovascular characteristics. The BCG output can be used for various purposes, such as detecting arterial aging. Secondary sensors can be used in conjunction with the BCG and can be used to determine the central arterial blood pressure, when used in conjunction with a peripheral blood pressure measurement.
113 Citations
21 Claims
-
1. A system for determining biological or physiological aspects relating to stiffness of at least one artery, the system comprising:
-
a first sensor configured and arranged to capture, from a user in an upright position, a heart-related signal indicative of at least one of physical movement and mechanical output of the user'"'"'s heart and of the mechanical movement of blood through an aorta of the user; and a second sensor configured and arranged to detect characteristics of the user at a distal artery location, the characteristics including a measurement of the volumetric change of an artery or organ of the user; and a logic circuit that is configured and arranged to process information provided from the first sensor and from the second sensor, the logic circuit being configured and arranged to generate arterial pulse wave velocity based on portions of the heart-related signal that are indicative of a pressure pulse of an ascending portion of the aorta, the characteristics of the user at a distal artery location and a distance between the aorta and the distal artery location, wherein the arterial pulse wave velocity is indicative of the biological or physiological aspects relating to the arterial stiffness. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
-
-
19. A system comprising:
a standing capture device including a first sensor configured and arranged to detect hand-to-hand impedance cardiogram of a user; a second sensor configured and arranged to detect characteristics of the user at a distal artery location, the characteristics including an optical measurement of the volumetric change of an artery or organ of the user; and a processor circuit that is configured to generate, from the impedance cardiogram signal, a T1 signal indicative of a pressure pulse of an ascending aorta of the user'"'"'s aorta; and determine arterial pulse wave velocity as a function of the T1 signal, the detected hand-to-hand impedance cardiogram and a distance between the aorta and the distal artery location.
-
20. A method comprising:
generating an arterial stiffness measurement by capturing, while a user is in an upright position, a BCG (ballistocardiogram) or hand-to-hand impedance cardiogram T1 signal that is indicative of mechanical movement of blood through a user'"'"'s aorta; detecting a pressure pulse at a location sufficiently distal to the user'"'"'s aorta to allow a determination of arterial pulse wave velocity; and determining the arterial pulse wave velocity using timings corresponding to the T1 signal and a timing of the pressure pulse.
-
21-25. -25. (canceled)
Specification