公开(公告)号：US10300231B2

公开(公告)日：2019-05-28

申请号：US15227120

申请日：2016-08-03

Applicant: ResMed Limited

Inventor： Geoffrey Daniel Daly ,  Alexander Virr ,  Stephen Anthony Lea ,  Nicholas Jerome Reed

IPC: A61M16/10 ,  A61M16/00 ,  F04D17/12 ,  F04D25/16 ,  F04D29/28 ,  A61M16/06 ,  A61M16/08 ,  F04D25/06 ,  F04D27/00 ,  F04D29/42 ,  F04D29/66

Abstract: A blower assembly is configured to deliver a flow of breathable gas at a continuously positive pressure with respect to ambient air pressure to a patient interface in communication with an entrance to a patient's airways including at least an entrance of the patient's nares, while the patient is sleeping, to ameliorate sleep disordered breathing. The blower assembly includes a motor having a shaft that extends from opposite sides of the motor. The blower assembly also includes an impeller and a circuit board. The impeller is attached to the shaft on a first side of the motor and is structured to rotate in close proximity to a volute wall. The circuit board is configured to control power supplied to the motor and is configured to disable the motor when the impeller is closer than a predetermined distance from the volute wall.

公开(公告)号：US09427538B2

公开(公告)日：2016-08-30

申请号：US13954300

申请日：2013-07-30

Applicant: ResMed Limited

Inventor： Geoffrey Daniel Daly ,  Alexander Virr ,  Stephen Anthony Lea ,  Nicholas Jerome Reed

IPC: A61M16/10 ,  A61M16/00 ,  F04D17/12 ,  F04D25/16 ,  F04D29/28

CPC classification number: A61M16/0066 ,  A61M16/0057 ,  A61M16/0069 ,  A61M16/06 ,  A61M16/0875 ,  A61M16/105 ,  A61M16/107 ,  A61M2205/42 ,  A61M2205/82 ,  F04D17/122 ,  F04D17/125 ,  F04D25/06 ,  F04D25/166 ,  F04D27/004 ,  F04D29/281 ,  F04D29/284 ,  F04D29/4213 ,  F04D29/4226 ,  F04D29/661 ,  F04D29/663 ,  F05B2240/14 ,  F05B2240/30

Abstract: A multiple stage variable speed blower for Continuous Positive Airway Pressure (CPAP) ventilation of patients includes two impellers in the gas flow path that cooperatively pressurize gas to desired pressure and flow characteristics. Thus, the multiple stage blower can provide faster pressure response and desired flow characteristics over a narrower range of motor speeds, resulting in greater reliability and less acoustic noise.

公开(公告)号：US20140041663A1

公开(公告)日：2014-02-13

申请号：US13954300

申请日：2013-07-30

Applicant: ResMed Limited

Inventor： Geoffrey Daniel Daly ,  Alexander Virr ,  Stephen Anthony Lea ,  Dion Charles Chewe Martin ,  Nicholas Jerome Reed ,  Larry Puckeridge ,  Timothy Tsun-Fai Fu

IPC: A61M16/00 ,  A61M16/10

CPC classification number: A61M16/0066 ,  A61M16/0057 ,  A61M16/0069 ,  A61M16/06 ,  A61M16/0875 ,  A61M16/105 ,  A61M16/107 ,  A61M2205/42 ,  A61M2205/82 ,  F04D17/122 ,  F04D17/125 ,  F04D25/06 ,  F04D25/166 ,  F04D27/004 ,  F04D29/281 ,  F04D29/284 ,  F04D29/4213 ,  F04D29/4226 ,  F04D29/661 ,  F04D29/663 ,  F05B2240/14 ,  F05B2240/30

Abstract: A multiple stage variable speed blower for Continuous Positive Airway Pressure (CPAP) ventilation of patients includes two impellers in the gas flow path that cooperatively pressurize gas to desired pressure and flow characteristics. Thus, the multiple stage blower can provide faster pressure response and desired flow characteristics over a narrower range of motor speeds, resulting in greater reliability and less acoustic noise.

Abstract translation: 用于患者连续气道正压通气（CPAP）的多级变速鼓风机包括气体流路中的两个叶轮，其将气体加压至所需的压力和流动特性。 因此，多级鼓风机可以在更窄的电机速度范围内提供更快的压力响应和期望的流量特性，从而导致更高的可靠性和较少的声学噪声。