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:
Jun. 20, 1989
Filed:
Apr. 01, 1987
Keiji Yamaguchi, Shimizu, JP;
Terumo Corporation, Tokyo, JP;
Abstract
A sphygmomanometer includes a pump for applying variable pressure to a blood vessel, a microphone for sensing oscillation which is produced from the blood vessel being pressurized by the pump, a pressure detecting section for sensing the pressure being applied to the blood vessel, and a Korotkoff sound recognizing section for recognizing Korotkoff sounds out of the oscillation detected by the microphone. When the recognizing section has recognized a Korotkoff sound, the instantaneous pressure on the blood vessel is detected by the pressure detecting section to measure blood pressure. Recognition of Korotkoff sounds by the recognizing section is inhibited until a predetermined period of time expires since the recognition of a Korotkoff sound, to prevent the tailing of a Korotkoff sound from being recognized erroneously.