·The pressure setting range of the instrument is adjustable from 10mmHg to 200mmHg, with an accuracy of ± 22.5mmHg;

·In pressure adjustment mode, the pressure value increases or decreases by 5mmHg (within the pressure setting range) every time the knob is turned.

·When the instrument is powered off and restored, there should be no output.

·The timing range should be within 0-99 m in (set in units of 1 m in), and the error should not exceed ± 2% of the set value;

·The error should not exceed ± 20 seconds;

·The instrument should be able to set timed shutdown and prompt functions.

·The zipper of the pressurized bag must not break open after being pressurized.

·The emergency stop product of the air wave pressure therapy device can relieve pressure, and the time for the input pressure to drop below 30 mm Hg should be within 4 seconds.

·When the therapeutic device is in operation, its noise should not exceed 60 dB;

·The therapeutic device has overvoltage protection measures to ensure that the maximum pressure generated in the connection pipeline of the airbag (or pressure chamber) under a single fault state is not greater than 1.2 times the nominal maximum output pressure of the equipment;

·The treatment device can provide measures to manually relieve the patient's pressure in various states. This measure should be completed with just one action, and the time for the patient's pressure to decrease from maximum pressure to 2 kPa (negative pressure to 1 kPa) should not exceed 10 seconds.

·Output channels and modes of the therapeutic device:

The Q L/IP C-B machine has 6 output channels and ≥ 6 pressurization modes;

The Q L/IP C-C type machine has 8 output channels and ≥ 8 pressurization modes;

The Q/IP C-D machine has 12 output channels and ≥ 12 pressurization modes;

·Continuous working time: The therapeutic device should have a continuous working time of ≥ 4 hours;

·Software features

a) Has pressure regulation function;

b) Equipped with self-locking function (when the instrument is powered off and restored, there should be no output);

c) Equipped with a timing device;

d) Equipped with emergency pressure relief function;

E) Q L/IP C-B type has ≥ 6 pressurization modes, Q L/IP C-C type has ≥ 8 pressurization modes, and Q L/IP C-D type has ≥ 12 pressurization modes;

·Classification of electric shock prevention types for therapeutic equipment: Class I equipment;

Classification of operating modes for therapeutic equipment: continuous operation equipment;

Classification of the degree of protection of the therapeutic device against fluid input: I PX0;

Treatment equipment is classified according to the degree of electric shock prevention: B-type application part;

The rated voltage and frequency of the therapeutic device: A C 220 V 50 Hz;

Input power of the therapeutic device:

Q L/IP C-B Ⅱ: 200 VA, Q L/IP C-C Ⅰ: 220 VA, Q L/IP C-D Ⅰ: 260 VA

The therapeutic device does not have a protective application for defibrillation discharge effects;

The therapeutic device does not have a signal input and output section.