Introduction; General Description; Measurement Principle - A-rival sQan User Manual

Introduction

General Description

Thank you for choosing an a-rival product. The device features body function measurement, not for medical purposes, and the result
storage.
This manual contains important safety and care information, and provides step by step instructions for using the product.
Please do read this user manual carefully and thoroughly before use.
FEATURES:
Systolic Blood Pressure
Diastolic Blood Pressure
Pulse Rate
Memory: Up to 60 pieces of records

Measurement Principle

This product uses the Oscillometric Measuring Method to detect blood pressure. Before every measurement, the unit establishes a "zero
point" equivalent to the atmospheric pressure. Then it starts inflating the cuff. Meanwhile, the unit detects pressure oscillation generated by
beat-to-beat pulsatile, which is used to deter- mine the systolic pressure and diastolic pressure as well as pulse rate.
The device also compares the longest and the shortest intervals of detected pulse wave to with the average value, and then calculates the
standard deviation. The device will light up a warning symbol when the calculated standard deviation is larger than or equal to 15.
4