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:
Aug. 26, 2003
Filed:
Dec. 28, 2001
Tohru Oka, Ichinomiya, JP;
Colin Corporation, Komaki, JP;
Abstract
An apparatus for continuously monitoring a blood pressure of a subject, comprising a cuff; a device for determining a blood pressure of the subject based on a signal obtained while the cuff pressure is changed; a device for determining a relationship between blood pressure and pressure pulse wave, based on a determined blood pressure and a detected magnitude of a first-artery pressure pulse wave; a device for iteratively determining, according to the relationship, a monitor blood pressure based on a magnitude of each pulse of the first-artery pressure pulse wave; a sensor which detects a second-artery pressure pulse wave from a second artery and produces a pressure-pulse-wave signal representing the second-artery pressure pulse wave; a device for extracting, from the pressure-pulse-wave signal, a heart-sound component representing heart sounds; a device for iteratively obtaining a piece of pulse-wave-propagation-velocity-related information, based on a time of occurrence of a periodic point of a pulse of the heart-sound component and a time of occurrence of a periodic point of a corresponding pulse of the second-artery pressure pulse wave; a device for periodically determining a change value of the pieces of information; a device for periodically determining a change value of the monitor blood-pressure values; and a device for comparing the change value of the pieces of information and the change value of the monitor blood-pressure values, with each other, and thereby judging whether the relationship is appropriate.