JP5628147B2 - 睡眠/覚醒状態評価方法及びシステム - Google Patents
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- A—HUMAN NECESSITIES
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- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/103—Measuring devices for testing the shape, pattern, colour, size or movement of the body or parts thereof, for diagnostic purposes
- A61B5/11—Measuring movement of the entire body or parts thereof, e.g. head or hand tremor or mobility of a limb
- A61B5/1118—Determining activity level
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/02—Detecting, measuring or recording for evaluating the cardiovascular system, e.g. pulse, heart rate, blood pressure or blood flow
- A61B5/024—Measuring pulse rate or heart rate
- A61B5/0245—Measuring pulse rate or heart rate by using sensing means generating electric signals, i.e. ECG signals
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/103—Measuring devices for testing the shape, pattern, colour, size or movement of the body or parts thereof, for diagnostic purposes
- A61B5/11—Measuring movement of the entire body or parts thereof, e.g. head or hand tremor or mobility of a limb
- A61B5/113—Measuring movement of the entire body or parts thereof, e.g. head or hand tremor or mobility of a limb occurring during breathing
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- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/48—Other medical applications
- A61B5/4806—Sleep evaluation
- A61B5/4809—Sleep detection, i.e. determining whether a subject is asleep or not
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- A—HUMAN NECESSITIES
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- A61B5/68—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient
- A61B5/6801—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient specially adapted to be attached to or worn on the body surface
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- A61B5/7267—Classification of physiological signals or data, e.g. using neural networks, statistical classifiers, expert systems or fuzzy systems involving training the classification device
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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Description
−(複数の)信号の適当なフィルタリング;
−アーチファクト除去;
−ECG信号の場合、異所性拍動の除去が必要でありうる;
−信号内に間隙がある場合、補間が必要でありうる。
ECGから、以下のフィーチャが、引き出される:
−時間ドメインからの統計的な心拍変動性パラメータ(例えば、平均心拍数、SDNN、RMSSD等);
−心拍変動性(HRV)スペクトルからのパラメータ(例えばLF、HF);
−マルチスケールサンプルエントロピー;
−段階的なトレンド除去される揺らぎ解析。
−ベイズの線形又は二次判別クラシファイア
−サポートベクトルマシン
−k最近傍(k-Nearest-Neighbour、kNN)方法
−ニューラルネットワーク
−ヒドンマルコフモデル
クラシファイアのパラメータは、代表データの大きいデータベース上で訓練される。
Claims (9)
- 被検体の睡眠及び覚醒状態を識別する装置であって、
前記被検体の睡眠環境に組み込まれ、前記被検体の身体運動に関連する信号を生成する少なくとも1つのベッド内フォイル状センサと、
前記センサからの信号を受信し、これらの信号から少なくとも1つのフィーチャを抽出し、前記抽出されたフィーチャを分類し、前記被検体が覚醒しているか又は睡眠しているかの見込みの標示を提供する計算手段と、
を有する装置。 - パワースペクトルが、トレンド除去モデルを使用して、関心のある予め規定された第2の持続時間エポックを中心とする予め規定された第1の持続時間において計算される、請求項1に記載の装置。
- 前記パワースペクトルは、低周波数帯域及び高周波数帯域に分割され、前記パワースペクトルは正規化される、請求項2に記載の装置。
- 前記少なくとも1つのフィーチャは、分類のためのフィーチャベクトルの成分を形成する、請求項1乃至3のいずれか1項に記載の装置。
- 前記フィーチャの分類は、教師あり学習による標準パターン認識アプローチに基づき、前記分類を行う分類器は、ベイズの線形又は二次判別分類器、サポートベクトルマシン、k最近傍法、ニューラルネットワーク及びヒドンマルコフモデルを含み、前記分類器のパラメータは、代表データの大きいデータベースにおいて訓練される、請求項4に記載の装置。
- 装置が被検体の睡眠及び覚醒状態を識別する方法であって、
前記装置が、前記被検体の睡眠環境に組み込まれるとともに前記被検体の身体運動に関連する信号を生成するベッド内フォイル状センサからの信号を受信するステップと、
前記装置が、これらの信号から少なくとも1つのフィーチャを抽出するステップと、
前記装置が、前記抽出されたフィーチャを分類するステップと、
前記装置が、前記被検体が覚醒しているか又は睡眠しているかの見込みの標示を提供するステップと、
を含む、方法。 - 前記受信、前記抽出及び前記分類を含む計算ステップは、自動的に実行することができ、反復的に、並行に又は連続的にスケジュールされ得る、請求項6に記載の方法。
- コンピュータプログラムがコンピュータ上で実行されたときに、請求項6に記載の方法を実施するためのプログラムコードを有するコンピュータプログラム。
- コンピュータプログラムがコンピュータ上で実行されたときに、請求項6に記載の方法を実施するためのプログラムコードを記憶したデータ担体。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP08103563.6 | 2008-04-16 | ||
EP08103563 | 2008-04-16 | ||
PCT/IB2009/051502 WO2009128000A1 (en) | 2008-04-16 | 2009-04-09 | Method and system for sleep/wake condition estimation |
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JP2014203434A Division JP5961235B2 (ja) | 2008-04-16 | 2014-10-01 | 睡眠/覚醒状態評価方法及びシステム |
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JP2011517982A JP2011517982A (ja) | 2011-06-23 |
JP5628147B2 true JP5628147B2 (ja) | 2014-11-19 |
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JP2011504581A Active JP5628147B2 (ja) | 2008-04-16 | 2009-04-09 | 睡眠/覚醒状態評価方法及びシステム |
JP2014203434A Active JP5961235B2 (ja) | 2008-04-16 | 2014-10-01 | 睡眠/覚醒状態評価方法及びシステム |
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Country Status (5)
Country | Link |
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US (1) | US20110034811A1 (ja) |
EP (1) | EP2265173B1 (ja) |
JP (2) | JP5628147B2 (ja) |
CN (1) | CN102006824B (ja) |
WO (1) | WO2009128000A1 (ja) |
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JP2011517982A (ja) | 2011-06-23 |
JP2015042267A (ja) | 2015-03-05 |
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