Patient ventilation devices and components thereof
A technology for ventilators, rotating parts, applied in the direction of components, electrical components, pump components, etc. of pumping devices for elastic fluids, which can solve problems such as safe, simple and reliable mixing of oxygen and breathable gas flow, etc. , to achieve the effects of reliable manufacturing, noise emission reduction, and simple technical solutions
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[0199] The ventilator 200 includes a housing 202 that is generally volute-shaped. The housing preferably comprises two parts 202a, 202b which are connected, for example mechanically and / or by means of ultrasonic welding. The casing 202 constitutes a fixed portion of the fan 200 . The ventilator 200 also includes a rotating portion including at least one impeller and a shaft, which are driven by an electric motor 208 . In one implementation, the motor 208 may be a brushless DC motor. In the illustrated embodiment, the ventilator is of the single stage type, although it is obvious that the ventilator could comprise two or more stages. Figure 6 to Figure 9 The rotating part of the ventilator 200 is not shown. According to a preferred embodiment, however, the inventive impeller 300 constitutes the rotating part of the inventive ventilator 200 .
[0200] The ventilator includes an air inlet 204 and an air outlet 206, which are preferably tubular. The air inlet 204 is arranged...
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