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Method for detecting and discriminating respiratory patterns from respiratory signals
专利权人:
レスメド・リミテッド
发明人:
アーミットステッド, ジェフリー,アーミットステッド, ジェフリー
申请号:
JP2007547093
公开号:
JP5478017B2
申请日:
2005.12.21
申请国别(地区):
JP
年份:
2014
代理人:
摘要:
A signal representative of a patient's respiration is split into equal length epochs. A primary feature is extracted from each epoch that acts as a compressed representation of the signal events. Statistics are applied to the primary feature to produce one or more secondary features that represent the entire epoch. Each secondary feature is grouped with one or more other features that are extracted from the entire epoch rather than selected epoch events. This grouping is the epoch pattern. The pattern is manipulated with suitable classifier algorithm to produce a probability for each class within the algorithm, that the signal may be representative of a disease state (Cheyne-Stokes, OSA etc). The epoch is assigned to the class with the highest probability. Also defined are methods of detecting Cheyne-Stokes breathing by analysing a signal to detect one or regions of hyperpnoea and if the length of a hyperpnoea exceeds a parameter, Cheyne-Stokes is present.
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