| 摘要 |
<p>An air flow device for use in recording, analyzing, replicating, and generating breathing patterns. A piping structure 24 provides receipt and transfer of pressurized gas through the device. The piping structure 24 has a source connection for receiving a single constant source of pressurized gas. Aspirators 28 and 30 are connected to the piping structure for receiving pressurized gas from the source connection and for selectively creating an output pressurization comprising a positive pressure gas flow and a negative pressure gas flow at a proportional solenoid valve. A balancing valve 38 is connected to the piping structure for controlling and calibrating the output pressurization of the aspirators. A control system provides control of the aspirators 28, 30, the balancing valve 38, and a solenoid valve 44. A solenoid valve is mechanically connected to the piping structure with pneumatic input and output connections and electronically connected to the control system with data input and output connections. The solenoid valve 44 provides patterned pneumatic flow between the aspirators and a system model according to air flow commands received by the solenoid from the control system. The system model, in one embodiment, is a breath actuated inhaler device. <IMAGE></p> |
