Sphygmomanometer adopting recognition of korotkoff sounds

Details Sphygmomanometer adopting recognition of korotkoff sounds Sphygmomanometer adopting recognition of korotkoff sounds

1987-04-01

1989-06-20

Howell, Kyle L.

Surgery

Truss

Pad

128681, A61B 502

Patent

active

048401811

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.

REFERENCES:
patent: 4313445 (1982-02-01), Georgi
patent: 4418700 (1983-12-01), Warner
patent: 4476876 (1984-10-01), Uchiyama
patent: 4501281 (1985-02-01), Furukawa et al.
patent: 4549549 (1985-10-01), Furukawa
patent: 4592366 (1986-06-01), Sainomoto et al.
patent: 4677983 (1987-07-01), Yamaguchi et al.
patent: 4768519 (1988-09-01), Yamaguchi

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