| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide an instrument capable of easily searching the carotid artery and quickly measuring beats. SOLUTION: This measurement instrument 10 of a bloodstream is provided with plural bloadstream measurement units 11 arranged adjacently to each other. The respective bloadstream measurement units are provided with a transmitter and a receiver, the transmitter generates continuous oscillation and the receiver receives sound waves reflected at a blood platelet. The signals of the receiver are amplified and sent to a signal processor 13. A dromogram is calculated based on the change of a frequency and output signals for which strongest signals are evaluated are generated.</p> |
