Complex sentence: At the pressure balance point, where pressure in the cuff equals systolic artery pressure, a "whooshing" noise can be heard as blood flows through the artery again.Non-invasive blood pressure meter does not need a patient specific calibration.
Split into simpler sentences: At the pressure balance point, where pressure in the cuff equals systolic artery pressure, a "whooshing" noise can be heard as blood flows through the artery again. Pressure balance based non-invasive blood pressure meter does not need a patient specific calibration.