Title:
Discernment of the Cheyne-Stokes respiration pattern using an oxygen measurement signal
Document Type and Number:
Japanese Patent JP6199330
Kind Code:
B2
Abstract:
Methods and apparatus provide Cheyne-Stokes respiration (“CSR”) detection based on a blood gas measurements such as oximetry. In some embodiments, a duration, such as a mean duration of contiguous periods of changing saturation or re-saturation occurring in an epoch taken from a processed oximetry signal, is determined. An occurrence of CSR may be detected from a comparison of the duration and a threshold derived to differentiate saturation changes due to CSR respiration and saturation changes due to obstructive sleep apnea. The threshold may be a discriminant function derived as a classifier by an automated training method. The discriminant function may be further implemented to characterize the epoch for CSR based on a frequency analysis of the oximetry data. Distance from the discriminant function may be utilized to generate probability values for the CSR detection.
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Inventors:
Lau, Chun Yui
Armittstead, Jeffrey Peter
Armittstead, Jeffrey Peter
Application Number:
JP2015043174A
Publication Date:
September 20, 2017
Filing Date:
March 05, 2015
Export Citation:
Assignee:
ResMed Limited
International Classes:
A61B5/087; A61B5/08; A61B5/1455
Domestic Patent References:
| JP2008525060A | ||||
| JP6038965A | ||||
| JP2003010188A |
Foreign References:
| WO2006066337A1 | ||||
| WO2006082589A2 |
Attorney, Agent or Firm:
Shoichi Okuyama
Arihara Koichi
Matsushima Tetsuo
Hidefumi Kawamura
Ayako Nakamura
Satoshi Morimoto
Kyoko Tsunoda
Yu Tanaka
Tokumoto Koichi
Atsushi Watanabe
Arihara Koichi
Matsushima Tetsuo
Hidefumi Kawamura
Ayako Nakamura
Satoshi Morimoto
Kyoko Tsunoda
Yu Tanaka
Tokumoto Koichi
Atsushi Watanabe
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