Respiratory ventilatory device and method of operating same

A method of assembling a respiratory ventilator device, comprising:

• coupling a first flexible silicone rubber diaphragm to an injector diaphragm housing, the injector diaphragm housing including an inner surface defining an interior volume, the first flexible silicone rubber diaphragm dividing the interior volume into an inhalation air chamber containing inhalation air and a first compressed air chamber for containing compressed air;
• coupling an inhalation inlet line to the injector diaphragm housing for channeling the inhalation air from a supply of inhalation air into the inhalation air chamber;
• coupling an inhalation outlet line to the injector diaphragm housing for delivering the inhalation air from the inhalation air chamber to a patient respiratory circuit;
• coupling a second flexible silicone rubber diaphragm within an extractor diaphragm housing, the extractor diaphragm housing including an inner surface defining an extractor interior volume, the second flexible silicone rubber diaphragm dividing the extractor interior volume into an exhalation air chamber and a second compressed air chamber;
• coupling an exhalation inlet line to the extractor diaphragm housing for channeling exhaled air from the patient respiratory circuit into the exhalation air chamber;
• coupling an exhalation outlet line to the extractor diaphragm housing for delivering the exhaled air from the exhalation air chamber to an exhaust air collection system;
• coupling a pneumatic compressed air assembly coupled to the injector diaphragm housing and to the extractor diaphragm housing for channeling compressed air into the first compressed air chamber and into the second compressed air chamber;
• wherein the pneumatic compressed air assembly includes:
• a compressed air inlet line coupled to the injector diaphragm housing for channeling compressed air into the first compressed air chamber, and coupled to the extractor diaphragm housing for channeling compressed air into the second compressed air chamber;
• a compressed air outlet;
• and
• a compressed air outlet line coupled between the injector diaphragm housing and the compressed air outlet for channeling compressed air from the first compressed air chamber to the compressed air outlet, and coupled between the extractor diaphragm housing and the compressed air outlet for channeling compressed air from the second compressed air chamber to the compressed air outlet;
• and
• coupling a control system to the pneumatic compressed air assembly to operate the pneumatic compressed air assembly to cycle between a compression phase and an expansion phase;
• wherein during the compression phase, the pneumatic compressed air assembly delivers the compressed air into the first compressed air chamber to inflate the flexible silicone rubber diaphragm to reduce a volume of the inhalation air chamber and channel the inhalation air to the patient respiratory circuit, and delivers the compressed air into the second compressed air chamber to inflate the second flexible silicone rubber diaphragm to reduce a volume of the exhalation air chamber and deliver the exhaled air from the exhalation air chamber to the exhaust air collection system;
• and
• wherein during the expansion phase, the pneumatic compressed air assembly removes the compressed air from the first compressed air chamber to deflate the first flexible silicone rubber diaphragm to increase the volume of the inhalation air chamber and receive the inhalation air from the supply of inhalation air, and removes the compressed air from the second compressed air chamber to deflate the second flexible silicone rubber diaphragm to increase the volume of the exhalation air chamber and receive the exhaled air from the patient respiratory circuit.