System for detecting abnormal blood volume and pressure
AssigneeAnalog Devices, Inc.
InventorsVenugopal Gopinathan, Tony J. Akl
Life of this patent
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Abstract
The present disclosure describes a system for detecting abnormal blood pressure or blood volume in a user, the system comprising a processing system; a pulse transit time (PTT) detection system for providing a PTT signal indicative of a PTT of the user to the processing system, wherein PTT of the user is used as a surrogate for a blood pressure (BP) of the user; and an electrodermal activity (EDA) detection system for providing an EDA signal indicative of an EDA of the user to the processing system; wherein the processing system processes the PTT signal and the EDA signal to determine an index indicative of an abnormal blood pressure or blood volume of the user.
Claims21
A system for detecting at least one of abnormal blood pressure or abnormal blood volume in a user, the system comprising:
- a wearable device disposed in contact with skin of the user;
- a processing system;
- a pulse transit time (PTT) detection system for providing a PTT signal indicative of a PTT of the user to the processing system during dialysis of the user, wherein PTT of the user is used as a surrogate for a blood pressure (BP) of the user;
- and
- a sympathetic arousal detection system for providing at least one signal indicative of a sympathetic arousal condition of the user to the processing system during dialysis of the user;
- wherein the processing system processes the PTT signal and the at least one sympathetic arousal signal to determine an index indicative of at least one of abnormal blood pressure or abnormal blood volume of the user during dialysis of the user.
A method for detecting abnormal blood pressure or blood volume in a user, the method comprising:
- attaching a wearable device in contact with skin of the user;
- generating a pulse transit time (PTT) signal indicative of a PTT of the user during dialysis of the user, wherein the PTT of the user is used as a surrogate for a blood pressure (BP) of the user;
- generating at least one signal indicative of a sympathetic arousal condition of the user during dialysis;
- and
- processing the PTT signal and the at least one sympathetic arousal signal to determine an index indicative of an abnormal blood pressure or blood volume of the user during dialysis of the user.
A system for detecting at least one of abnormal blood pressure or abnormal blood volume in a user, the system comprising:
- a processor;
- a pulse transit time (PTT) detection system for providing a PTT signal indicative of a PTT of the user to the processor during dialysis of the user;
- and
- a sympathetic arousal detection system for providing at least one signal indicative of a sympathetic arousal condition of the user to the processor during dialysis of the user;
- wherein the processor processes the PTT signal and the at least one sympathetic arousal signal to detect a condition of the user during dialysis of the user.
Dependencies are inferred from the claim text.