Blood pressure measuring appts. with inflatable cuff - has variable capacitors for pneumatic coupling to pulse sensor and measures systolic pressure on patient's digit by progressive deflation

摘要

The appts. has an cuff for fixing to a body in a position to obturate an artery. An inflation device progressively inflates and deflates the cuff. A pulse sensing device converts a sensed pulse into a visual, audible indication. A pneumatic device connects the pulse sensing device and the converting device. The pressure exerted in the cuff is measured. Progressive inflation and deflation is effected until the pulse sensing device just detects the presence of a pulse to indicate the systolic blood pressure. The cuff is adapted to encircle a finger.