Omron Tateisi Electronics Co.

Omron Tateisi Electronics

Shoji Kimura

Akira Abe

Yuzo Kuwabara

Abe Akira

Miyawaki Yoshinori

Blood pressure measuring apparatus comprising an occluding cuff including an inflatable bladder, an air guiding passage one end of which is connected to the bladder, an air pressure control connected to the other end of the passage for inflating or deflating the bladder through the passage, a microphone within said passage for sensing Korotkoff sounds which are propagated through the passage from the bladder and for generating Korotkoff sound signals, a pressure transducer for sensing the pressure within the bladder and for generating pressure signals, and a circuit operative in response to the Korotkoff sound and pressure signals to measure the systolic and diastolic blood pressures of a patient whose blood pressure is to be measured.

Blood pressure measuring apparatus

A Korotkov sound sensor having a microphone in a housing body which is nearly rectangular in shape, made of elastic material and having a hollow therein. A flexible thin film to be placed adjacent an artery of an individual is adhered to the periphery of the hollow to form an air space. The housing body hardly transmits external noises to the microphone, and Korotkov sounds from an artery of the individual are transmitted to the microphone through the thin film and the air space. Highly sensitive and accurate measurement of blood pressure is easily achieved by this system.

Growing community of inventors

Kameoka, Japan

Shoji Kimura