Patent ID: 8960193
Filing Date: 2015-02-24
Classification: A61M

Abstract:
1. A ventilatory system for the provision of respiratory support to a patient, the ventilatory system comprising: a linear oscillating drive pump that receives ambient air through an inlet and operates through a plurality of cycles per ventilation cycle to pressurize the ambient air to create a flow of pressurized drive gas for each ventilation cycle; a controller in operative communication with the linear oscillating drive pump and the controller operates the linear oscillating drive pump at a motor operating frequency greater than a respiration rate of the patient and a variable voltage magnitude to control the created flow of pressurized drive gas for each ventilation cycle; a dampening system that removes an oscillatory component from the flow of drive gas, the oscillatory component being caused by the linear oscillating drive pump; a first inspiratory conduit connected to the drive pump such that a flow of drive gas from the drive pump is delivered to the first inspiratory conduit; a second inspiratory conduit connected to the first inspiratory conduit such that a flow of drive gas travels from the first inspiratory conduit, into the second inspiratory conduit; a bellows assembly comprising a bellows chamber fluidly connected to the second inspiratory conduit and a bellows in pneumatic connection with the bellows chamber; and a patient connection conduit in fluid connection with the bellows, the patient connection conduit being disposed for connection to a patient interface; wherein the drive gas is delivered to the bellows assembly to compress the bellows, and upon compression of the bellows, the bellows delivers a medical gas to the patient connection conduit.