Patent · US Active

Sleep state detection

US8083682B2 · kind B2 · utility

80Cited by

0References

32Claims

0Family size

Assignee

Cardiac Pacemakers, Inc. · US

Inventors

Yousufali Dalal · St. Louis Park, US
Yachuan Pu · San Diego, US
John D. Hatlestad · Burnsville, US

Key dates

Filing date	Jul 19, 2006
Grant date	Dec 27, 2011
Priority date	—
Expiry date	Aug 1, 2030

Classification

Technology area (CPC A)Human Necessities
CPC primaryA61B5/4818
WIPO fieldMedical technology
WIPO sectorInstruments

Abstract

This document discusses, among other things, systems and methods for determining sleep state, such as awake, sleeping, non-REM sleep, or REM sleep. Respiration and heart contractions are monitored. A cardio-respiratory ratio such as beats per breath is computed and used in the sleep state determination. Other information, such as heart rate variability (HRV), posture, and activity level can also be used in the sleep state determination. The sleep state information can be used to qualify or trigger storage of other physiological sensor data, or to permit remote sleep study monitoring of a subject, or to control or adjust one or more monitoring, diagnostic, or therapy algorithms, such as, for example a continuous positive airflow pressure (CPAP) device.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.