| 摘要 |
A blood pressure monitor consisting at least one sensor attached to the patient's chest and able to convert acoustic signals (16) created by the closure of cardiac valves into electrical signals for a phonocardiograph, is new. A blood pressure monitor consisting at least one sensor attached to the patient's chest and able to convert acoustic signals (16) created by the closure of cardiac valves into electrical signals for a phonocardiograph, is new. The system includes discriminators able to recognize and extract from the phonocardiograph signal a vibration profile (18) linked to a second cardiac sound produced periodically at the end of the systole. It also has an analyzer for at least one predetermined parameter of the vibration profile, especially the amplitude (20) separating signal extremes, and able to deliver a phono-arterial index value representative of the blood pressure.
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