Patent ID: 8122884
Filing Date: 2012-02-28
Classification: A61M,F04D,Y02B

Abstract:
1. A CPAP/NIPPV apparatus for delivering breathable gas to a human patient including a double-ended blower comprising: a motor supporting first and second shaft ends extending from opposite ends of the motor; a first impeller attached to the first shaft end, the first impeller having a first air intake and a first volute; a second impeller attached to the second shaft end, the second impeller having a second air intake and a second volute; and a casing to support and enclose the motor thereby enabling establishment of an air flow channel within the casing and surrounding the motor to guide air along an air path from the first impeller to the second impeller, wherein the air flow channel is constructed and arranged so that at least part of the air path between the first and second volutes is helical, said casing formed with an outlet downstream of the second impeller.