Breathing assistance apparatus
AssigneeFisher & Paykel Healthare Limited
InventorsPhilip John Dickinson, Hayk Noobar Antranik Yaghobian, Richard Daniel Panara
Life of this patent
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Abstract
There is provided an apparatus for delivering a flow of gas having a controller, a housing defining a gasflow passage, a motor with an impeller to deliver gas through the gasflow passage, and a flexible printed circuit electrically connected to the motor for electrically connecting the motor to the controller. There is also provided an apparatus for delivering a flow of gas having a housing defining a gasflow passage. The gas flowing through the gasflow passage is a high concentration oxygen gas. The apparatus has a motor with windings and an impeller to deliver gas through the gasflow passage, and an elastomeric shield to pneumatically isolate the windings from the gasflow passage.
Claims15
A blower for an apparatus for delivering a flow of gas, the blower comprising:
- a stator including a first stator ledge and a second stator ledge;
- and
- a casing, comprising:
- a plurality of casing ledges and at least one flexible or resilient member, wherein the plurality of casing ledges support the first stator ledge, and the at least one flexible or resilient member supports the second stator ledge;
- or
- at least one casing ledge and a plurality of flexible or resilient members, wherein the at least one casing ledge supports the first stator ledge, and the plurality of flexible or resilient members support the second stator ledge.
A blower for an apparatus for delivering a flow of gas, the blower comprising:
- a top casing;
- a bottom casing configured to engage the top casing, the bottom casing including at least one casing ledge and at least one flexible or resilient member;
- and
- a stator including a first stator ledge and a second stator ledge,
- wherein the at least one casing ledge supports the first stator ledge, and the at least one flexible or resilient member supports the second stator ledge.
A blower for an apparatus for delivering a flow of gas, the blower comprising:
- a casing including at least one casing ledge and at least one flexible or resilient member;
- and
- a stator including a first stator ledge and a second stator ledge,
- wherein the at least one casing ledge supports the first stator ledge, and the at least one flexible or resilient member supports the second stator ledge, wherein the at least one flexible or resilient member is configured to flex beyond a periphery of the stator to allow removal of the stator from the casing.
Dependencies are inferred from the claim text.