06622724 is referenced by 57 patents.

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.

Title
Impeller and a pressure support system and method using such an impeller
Application Number
9/883035
Publication Number
6622724 (B1)
Application Date
June 15, 2001
Publication Date
September 23, 2003
Inventor
Kay Herbert
Winthrop
MA, US
Patrick W Truitt
Pittsburgh
PA, US
Agent
Michael W Haas
US
Assignee
Respironics
PA, US
IPC
A61M 16/00
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