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(11) | EP 1 426 008 A8 |
| (12) | CORRECTED EUROPEAN PATENT APPLICATION |
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| (54) | Blood pressure measuring apparatus |
| (57) A blood pressure measuring apparatus oppresses blood vessels of a human body by an
inflating unit through a cuff. When the blood vessels are oppressed through the cuff,
a pulse wave superposed on a cuff pressure signal through a cuff pressure detector
is detected by a pulse wave detector. The waveform of the detected pulse wave changes
similarly to changes of pressure in the oppressed blood vessels in one heartbeat period.
The information of the detected pulse wave waveform and the cuff pressure at this
time are stored in a memory. A blood pressure calculator determines the scale of pulse
wave waveform on the basis of the information stored in the memory, and matches the
determined scale of pulse wave waveform with the scale of waveform showing pressure
changes in the blood vessels, so that a plurality of timings of coincidence of cuff
pressure and blood pressure are detected, and the systolic pressure and diastolic
pressure are calculated by using these detected information and stored information
of pulse wave waveforms. It is therefore possible to measure blood pressures in a
short time. |