The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 15, 2005
Filed:
Aug. 24, 2001
Rie Ohsaki, Anjo, JP;
Teiyuu Kimura, Nagoya, JP;
Shinji Nanba, Kariya, JP;
Junichiro Hayano, Nagoya-city, Aichi-pref., 466-0844, JP;
Toshiaki Shiomi, Nagoya-city, Aichi-pref., 465-0042, JP;
Rie Ohsaki, Anjo, JP;
Teiyuu Kimura, Nagoya, JP;
Shinji Nanba, Kariya, JP;
Junichiro Hayano, Nagoya-city, Aichi-pref., 466-0844, JP;
Toshiaki Shiomi, Nagoya-city, Aichi-pref., 465-0042, JP;
Denso Corporation, Kariya, JP;
Other;
Abstract
A physiological condition detecting method detects pulse waves from the body of a patient, and creates the envelope of the pulse waves by connecting every peak of the pulse waves. It determines that the patient is in non-REM sleep, if the envelope fluctuates regularly. It determines that the patient is in REM sleep, if the envelope fluctuates irregularly. Further the method calculates and normalizes the amplitude and period of the envelope. It determines whether the patient has obstructive sleep apnea syndrome based on the normalized amplitude. It determines whether the patient has central sleep apnea syndrome based on the normalized period. It determines that the patient has mixed sleep apnea syndrome based on the normalized amplitude and the normalized period.