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. 09, 1999
Filed:
Nov. 14, 1996
Makoto Miyazaki, Konan, JP;
Colin Corporation, Komaki, JP;
Abstract
A blood pressure monitor apparatus for monitoring a blood pressure of a living subject, by changing a pressing pressure of an inflatable cuff being wound around a body portion of a living subject, including a cuff-pressure regulating device which iteratively changes the pressure of the cuff within a predetermined range whose upper limit is lower than a mean blood pressure of the subject, a pulse-wave sensor which detects an amplitude of each of a plurality of heartbeat-synchronous pulses of a pulse wave which is produced in the cuff when the pressure of the cuff is changed within the predetermined range by the regulating device, a characteristic determining device for determining a characteristic value relating to an envelope of the pulse amplitudes detected by the pulse-wave sensor during each of the iterative cuff-pressure changes within the predetermined range, and a identifying device for identifying an abnormal decrease of the blood pressure of the subject based on the characteristic value determined by the characteristic determining device.