Impeller and a pressure support system and method using such...

Details Impeller and a pressure support system and method using such... Impeller and a pressure support system and method using such...

2003-07-18

2011-12-13

Yu, Justine (Department: 3771)

Surgery

Respiratory method or device

Means for supplying respiratory gas under positive pressure

C128S204180, C128S200240

Reexamination Certificate

active

08074647

ABSTRACT:
An impeller, a pressure generator using such an impeller, and a pressure support system and method using such a pressure generator to deliver a flow of breathing gas to a patient is disclosed. The impeller enables a pressure of a flow of breathing gas delivered by a pressure support system to a patient to remain substantially constant despite variations of the output flow rate. The impeller includes a plurality of impeller blades disposed on a face of the impeller body with an inlet area between each pair of adjacent blades being substantially equal a corresponding outlet area for each pair of adjacent blades.

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