Patent ID: 6740044
Filing Date: 2004-05-25
Classification: A61B

Abstract:
A blood-pressure monitoring apparatus for use with a dialyzing device, comprising:a blood-pressure-related-information obtaining device which iteratively obtains, from a patient who is undergoing a dialysis operation of the dialyzing device, a piece of blood-pressure-related information that can change in relation with a blood pressure of the patient; a change-value determining means for determining a change value representing a change of each piece of blood-pressure-related information iteratively obtained by the blood-pressure-related-information obtaining device; a memory device which stores, for the patient, a plurality of prescribed threshold values corresponding to a plurality of prescribed periods of an entire duration of the dialysis operation, wherein at least one of the threshold values that corresponds to at least one of the prescribed periods is smaller than the other threshold values, and wherein the blood pressure of the patient is more likely to lower during said at least one period of the entire duration, than during the other periods of the entire duration; and a judging means for judging that the blood pressure of the patient is abnormal, when the change value determined by the change-value determining means is greater than one of the threshold values that corresponds to one of the prescribed periods that includes a dialysis time, measured from a commencement of the dialysis operation, when said each piece of blood-pressure-related information is obtained by the blood-pressure-related-information obtaining device.