Portable ventilator suitable for cardiopulmonary resuscitation and control method therefor

A portable ventilator suitable for cardiopulmonary resuscitation,

• comprising a fan, an air-oxygen mixing device, a pipeline, a controller, and a flow sensor, wherein:
• an air-inlet of the fan is connected to the air-oxygen mixing device, and an outlet is connected to a first end of an oxygen sensor;
• a second end of the oxygen sensor is connected to an air-inlet of the flow sensor being used to monitor a flow rate, an outlet of the flow sensor is connected to the pipeline, and a control switch is provided on pipeline and is used to close the pipeline;
• a pressure sensor is further provided on the pipeline and is used to monitor an air pressure in the pipeline;
• and
• the controller is communicated with the flow sensor and the pressure sensor and is configured to perform a feedback control on the fan based on monitoring data of sensors, ensuring provision of a constant flow rate of air.