subject: Apparatus For Producing Blood Pressure Monitor [print this page] In the blood pressure monitor manufacturers apparatus in accordance with the first aspect of the present invention, the blood pressure measurement starting means starts a blood pressure measurement of the blood pressure measuring device, when an amount of change of the estimated blood pressure values determined by the estimated blood pressure determining means is greater than the first reference value and at least one of an amount of change of the measured pulse periods and an amount of change of the calculated pulse-wave areas is greater than a corresponding one of the second and the third reference value. Thus, the present blood pressure monitor apparatus can employ as small as possible reference values for finding abnormalities and accordingly identify, without any delay, abrupt blood pressure changes, in comparison with a conventional blood pressure monitor apparatus which starts a blood pressure measuring operation, based on only the judgment of abnormality of estimated blood pressure values. The reliability of the present blood pressure monitor apparatus is thus improved.
According to another feature of the first aspect of the invention, the blood pressure monitor manufacturers apparatus further comprises blood pressure-pulse wave propagation information relationship determining means for determining the relationship between blood pressure and pulse-wave propagation information, based on a blood pressure value measured by the blood pressure measuring device and a set of pulse-wave propagation information obtained by the pulse-wave propagation information obtaining means.
blood pressure monitor manufacturers apparatus according to claim 1, wherein said peripheral pulse wave detecting device comprises a photoelectric pulse wave sensor including a light-emitting and a light-receiving element, the light-emitting element emitting, toward a body surface of the subject, a light including a wavelength which can be reflected by hemoglobin present in blood of the subject, the light-receiving element receiving the light scattered by the hemoglobin from the body surface of the subject.
