| 摘要 |
<p>A tonometer structure (100) for permanently monitoring a patient' s arterial pressure during a determined time comprising a support body (10) that can be worn by a patient (50), a detection unit (150) mounted to the wearable support body (10). The support body (10) and the detection unit (150) are configured such that the detection unit, in use, can contact the patient's skin (50) proximate to an artery path (52). The detection unit (150) has a plurality of piezoresistive pressure sensors (20) each of which is configured to measure a pressure variation when the detection unit (150) can contact the patient's skin, and configured to provide a respective measurement signal (25) associated with a respective sphygmic wave of a determined amplitude. Furthermore, a control unit (30) is arranged to receive the measurement signals (25) and to recognize a reference signal (26) associated with a respective reference sensor (21) and at least one boundary signal (27) associated with a respective boundary sensor (22). Furthermore, a means is provided for actuating (34) said recognition means (32) at predetermined instants (t1, t2, t3, tn) for determining a relative reference sensor (21) at each instant (t1, t2, t3, tn), such that also in the case of an accidental movement of the detection unit (150) with respect to said artery path (52) a reference sensor (21) is always recognized.</p> |
