TONOMETRY SYSTEM FOR DETERMINING BLOOD PRESSURE.

摘要

A tissue contact stress detection apparatus (10) for determining, without penetration, the intra-arterial blood pressure of a patient. BR/ It comprises a micro-wafer (30) having a continuous diaphragm (34) placed against a tissue (24) of a patient that covers an underlying artery (26) and able to be deformed in response to a constraint in said tissue (24) caused by the intra-arterial blood pressure, a semiconductor assembly means (46,48), in close proximity to said diaphragm (34), at a distance therefrom, which emits (46) ) on the diaphragm (34) said electromagnetic radiation (70), receives (48) a portion of said radiation (70) which it reflects, whereby the amount of radiation (70) received by the semiconductor assembly is a function movement of the diaphragm (34) in response to said tissue constraint (24) caused by said intraarterial blood pressure. BR/ Application to the measurement of blood pressure