Title:
患者用換気装置およびそれに関する部品
Document Type and Number:
Japanese Patent JP6779945
Kind Code:
B2
Abstract:
The present invention relates to a blower for providing a supply of breathable gas at positive pressure comprising a breathable gas inlet and a breathable gas outlet. The blower comprises further a rotating portion comprising a shaft and an impeller configured to accelerate the breathable gas entering the blower at the breathable gas inlet and a stationary portion. The impeller comprises a shroud having a substantially wavy or tooth shaped outer circumference, wherein an outer diameter of the shroud varies between a maximum outer dimeter and a minimum outer diameter and a plurality of vanes extending from the shroud, wherein, vis-à-vis the vanes, the shroud is located further distanced from the breathable gas inlet. A maximum outer diameter of the shroud is reached in a vicinity of or adjacent radially outside tips of the vanes while a minimum outer diameter is reached between two adjacent vanes, wherein the vanes are radially arranged and extend from an inner diameter to an outer diameter. Furthermore, the vanes are curved from an intermediate diameter towards their end at the outer diameter, the curvature of the vanes being positive, i.e., towards a direction of rotation.
Inventors:
Adel Nib
Johannes Nicole
Achim Beaner
Johann Sebastian Burz
Bernd Christoph Lang
Third Nasr
Robert Ible
Andreas Kirchberger
Christian backhouse
Johannes Nicole
Achim Beaner
Johann Sebastian Burz
Bernd Christoph Lang
Third Nasr
Robert Ible
Andreas Kirchberger
Christian backhouse
Application Number:
JP2018136532A
Publication Date:
November 04, 2020
Filing Date:
July 20, 2018
Export Citation:
Assignee:
RESMED PTY LTD
International Classes:
A61M16/00
Domestic Patent References:
| JP2008511358A | ||||
| JP2004524088A | ||||
| JP2001057220A |
Foreign References:
| US20020163139 | ||||
| US20080309027 |
Attorney, Agent or Firm:
Michiko Matsutani
Yasushi Ohata
Noriyuki Iwaki
Yasushi Ohata
Noriyuki Iwaki