Arteriostenosis diagnosing apparatus

An arteriostenosis diagnosing apparatus, comprising:

• an inferior limb blood pressure measuring device which measures an inferior limb blood pressure at a first measuring point on an inferior limb of a living subject;
• a superior limb blood pressure measuring device which measures a superior limb blood pressure at a second measuring point on a superior limb of the subject;
• an inferior and superior limb blood pressure index determining device which determines an inferior and superior limb blood pressure index of the subject, based on the inferior limb blood pressure measured by the inferior limb blood pressure measuring device and the superior limb blood pressure measured by the superior limb blood pressure measuring device;
• a first pulse wave velocity related information obtaining device which obtains first pulse wave velocity related information that is related to a first velocity at which a first pulse wave propagates through a first interval whose one end is defined by the first measuring point and which includes an upstream portion of the inferior limb that is located upstream of the first measuring point as seen in a direction of flow of arterial blood in the inferior limb;
• a second pulse wave velocity related information obtaining device which obtains second pulse wave velocity related information that is related to a second velocity at which a second pulse wave propagates through a second interval which does not include any portions of the inferior limb;
• and
• an arteriostenosis judging device which judges, when the inferior and superior limb blood pressure index does not fall in a prescribed abnormal index range, when the first pulse wave velocity related information falls in a prescribed normal information range, and when the second pulse wave velocity related information falls in a prescribed abnormal information range, that there is a possibility that the inferior limb has arteriostenosis.