JP4660480B2 - 体の動きをモニターするための光学測定反射システム - Google Patents
体の動きをモニターするための光学測定反射システム Download PDFInfo
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- JP4660480B2 JP4660480B2 JP2006526364A JP2006526364A JP4660480B2 JP 4660480 B2 JP4660480 B2 JP 4660480B2 JP 2006526364 A JP2006526364 A JP 2006526364A JP 2006526364 A JP2006526364 A JP 2006526364A JP 4660480 B2 JP4660480 B2 JP 4660480B2
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Description
胸部のベルトは密着させるのが難しく、使用する前にセンサーの電極を湿らせるためにしばしばゼリー状物質が要求される。心臓をモニターする窮屈な胸部ベルトは、長時間装着するとき、心地良くない。指や耳に留める機械的なセンサーも心地良くない。
米国特許第6,360,615号(スメラ)に、ポリピロルで処理された織物を用いてストレインゲージを通して、着用者の体における動きを検知する衣服を用いたモニターシステムが開示されている。
米国特許第6,341,504号(イストゥック)に、カーブしたパターンに形成された伝導性ワイヤを持ち、弾性材料の細長い1つもしくは複数のバンドを含む生理的にモニターするための衣服が開示されている。その衣服が人によって着られるとき、人の骨格の幾何学的な変化によって引き起こされるその織物の伸長と弛緩は、その衣服の伝導性ワイヤにおける電気的な特性の変化を引き起こす。そのようなシステムはその織物構造へ複雑さの付加的な構成要素を加え、それは伝統的な衣服デザインと構造にあまり適さない。
米国特許第5,577,510号(チタム)に、生理学的なモニターのための大きな胸部および腰ベルトが開示されている。
イギリスのヘルスケア テクノロジー リミッテドの国際公開第9714357号に、音声の心臓鼓動メッセージを生成することができるモニターが開示されている。
受け入れ孔への光損失の総計に対するその織物から伸びる軸について定義される、受け入れ孔へのその織物によって反射された有効光の総計は、動きに応じてその織物が伸びたり、回復したりするとき、変化する。そのような動きは、例えば、生理学上の活動によって引き起こされる体の幾何学的な変化によって、引き起こすことができる。
織物は、衣服または織物マントルを含むセッティングのバラエティにおける、モニターするパッチとして用いることができる。
図1は、対象Sの胴の上に着用されるように寸法を合わせて作られた、本発明に一致する織物を有する衣服を含む、対象Sの少なくとも1つの生理学上のパラメーターをモニターするシステムの様式化した図、
図2は、本発明の織物の反射反応を説明する様式化した図、
図3Aおよび図3Bは、本発明のモニターシステムの動作を説明する概略図、
図3Cは、光のバランス、すなわち、織物が伸び、また回復するとき、受け入れ孔への光損失の総計に対する、織物によって反射される有効光の受け入れ孔への総計における変化のグラフ用いた図、
図3Dは、織物の伸びおよび回復の間の光バランスにおける変化を表わす信号、周期時間のグラフを用いた図である。
図1は、生理的活動に応じた対象Sの体の幾何学的変化による動きをモニターする作業に適用されるように本発明による動きモニターシステム10の様式化した図である。そのような動きをモニターすることによって、心拍数や呼吸数のような、対象Sの生理的活動を特徴付ける1つまたはそれ以上のパラメーターの出過ぎない測定を引き出すことができる。
ここで用いられたように、「近赤外光」という語は、約700ナノメーター〜約2200ナノメーターの範囲の波長を有する光を意味する。
805ナノメーターの波長または880ナノメーターの波長は、近赤外範囲において動作するシステムに用いることができる。805ナノメーターの波長を有する光が好ましい。
1つの好ましい実施形態では、被覆された弾性糸は、10デニール(11dtex)7フィラメント ナイロン糸で一重被覆された、20デニール(22dtex)LYCRA(登録商標)スパンデックス糸で作ることができる。LYCRA(登録商標)スパンデックス糸は、デラウェア19805、ウィルミントン、INVISTA ノース アメリカ S. ar. l.から利用可能である。その代わり、本発明の弾性糸構成要素は、デラウェア、ウィルミントンのINVISTA S. ar. l. ノース アメリカ会社からのELASTERELL-P(登録商標)として知られるような、弾性糸またはポリエステル2種系糸を含むことができる。スパンデックスとエラステインの用語は、この技術では取り替えて使用できる。本発明に用いるのに適したブランド品のスパンデックス糸の例は、LYCRA(登録商標)である。
テレフタレート(PET)、ポリトリメチレン テレフタレート(PTT)およびポリテトラブチレン テレフタレートを含む。1つの好ましい例では、ポリエステル2種系フィラメントは、個々のフィラメントの断面に見られるようなサイドバイサイドの関係にある、PETポリマーの構成要素およびPTTポリマーの構成要素を含む。この構造を有する1つの例の糸は、登録商標T-400 次世代ファイバーの元で、デラウェア19805、ウィルミントン、INVISTA ノース アメリカ S. ar. l.によって販売される。
68フィラメントナイロン糸である。
ジョージア アトランタ ハントクリフ トレース 9635)からモデルDT155(0-5電圧出力)として利用可能なものである。
図3Aと3Bに示された例において、光源18は、参照番号17によって示される概して円形のスポットを照らすように置かれている。適切な光学(例えば光源18上のオブジェクト レンズ)を用いて、スポット17の寸法を、織物を形成する糸16Yのどのような任意の数を含む領域上に焦点を合わせ、または糸16Yの単一のフィラメントのみを含む領域上さえに焦点を合わせるように、調節して選択することができる。
吐き出しの間、対象Sの体は収縮するので、織物16はその伸びの弾性回復フェイズを経る。ギャップ16Gはそれらの元の寸法に戻る(図3A)。光の相対的に多い部分は、検知器22の方へ再び有効に反射され、そこから出力信号を増加させる。
Claims (11)
- 織物が400〜2200ナノメーターの範囲の波長を有する光で照らされるとき、光反射特性を有し、実質的に光透過特性を有さず、
前記織物から伸びる軸について定義された受け入れ孔に対する無効光の総計に対する、前記織物によって反射された前記受け入れ孔の中への有効光の総計が、前記織物が伸びるときと前記織物が伸びから回復するときに変化する織物を含む衣服の着用者の少なくとも1つのあらかじめ決められた生理学上のパラメーターをモニターするためのシステムであって、
400〜2200ナノメーターの範囲の波長を有する少なくとも1つの放射線源と、
前記受け入れ孔内に配置された少なくとも1つの放射線検知器とを含み、該放射線検知器は400〜2200ナノメーターの範囲の波長を有する放射線に反応し、
織物が伸びるときと伸びから回復するとき、前記放射線検知器によって検知された入射放射線の検知量が、前記織物によって反射された前記受け入れ孔の中への有効光の総計における、前記衣服の着用者の少なくとも1つのあらかじめ決められた生理学上のパラメーターに応じた変化によって直接的に影響されるように、前記放射線源と前記放射線検知器が相関的な位置において前記織物に関係付けられているモニターシステム。 - 前記織物が、
第2の複数の伸びる糸といっしょに編まれ、または織られた第1の複数の反射糸を含み、各前記伸びる糸は、被覆された弾性糸と固い糸の組み合わせとして形成されている請求項1記載のモニターシステム。 - 前記システムはさらに、
前記放射線検知器上に入射する440〜2200ナノメーターの範囲の波長を有する放射線を表わす前記放射線検知器からの信号を、前記衣服の着用者のあらかじめ決められた生理学上のパラメーターを表わす信号に変換する信号処理装置を含む請求項1または2記載のモニターシステム。 - 前記織物が前記衣服から取り外し可能である請求項1、2または3記載のモニターシステム。
- 前記織物が前記衣服と一体的である請求項1、2または3記載のモニターシステム。
- 前記信号処理装置が前記衣服内に取り付けられ、前記衣服はさらに、前記衣服の上または中に配置され、前記放射線検知器と前記信号処理装置に接続された伝導路を含む請求項1乃至5のいずれか記載のモニターシステム。
- 前記放射線源と前記放射線検知器が前記織物に取り付けられている請求項1乃至6のいずれか記載のモニターシステム。
- 織物が400〜2200ナノメーターの範囲の波長を有する光で照らされるとき、光反射特性を有し、実質的に光透過特性を有さず、
前記織物から伸びる軸について定義された受け入れ孔に対する無効光の総計に対する、前記織物によって反射された前記受け入れ孔の中への有効光の総計が、前記織物が伸びるときと前記織物が伸びから回復するときに変化する織物の動きをモニターする方法であって、
光反射特性を有し、実質的に光透過特性を有しない織物に向かって、400〜2200ナノメーターの範囲の放射線の波長を有する光を向け、
前記織物を伸ばし、
前記織物の伸びと前記織物の伸びからの回復の間、前記織物から伸びる軸について定義された受け入れ孔の中への前記織物によって反射される、前記織物の動きに応じて変化する光の総計を測定し、前記光の総計の時間的変化によって前記織物の動きをモニターする、織物の動きをモニターする方法。 - 前記織物が、
第2の複数の伸びる糸といっしょに編まれ、または織られた第1の複数の反射糸を含み、各前記伸びる糸は、被覆された弾性糸と固い糸の組み合わせとして形成されている請求項8記載の織物の動きをモニターする方法。 - 前記織物が400〜800ナノメーターの範囲の波長を有する光で照らされるとき、光反射特性を有し、
前記放射線源は、400〜800ナノメーターの範囲の波長を有する放射線を放射し、
該前記放射線検知器は400〜800ナノメーターの範囲の波長を有する放射線に反応する請求項1乃至7のいずれかに記載のモニターシステム。 - 前記織物の動きに応じて変化する光の総計を測定して得られる信号を、前記織物を部分として有する衣服の着用者のあらかじめ決められたパラメーターを表す信号に変換する請求項8または9記載の織物の動きをモニターする方法。
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CN110464318B (zh) * | 2019-08-21 | 2020-09-01 | 清华大学 | 基于ppg的生理信号采集系统 |
US11655570B2 (en) | 2019-10-08 | 2023-05-23 | Biothread Llc | Illuminated garment |
AU2021326464A1 (en) * | 2020-08-10 | 2023-04-06 | Dynocardia, Inc. | Optomechanical method to measure arterial pulse and assess cardiopulmonary hemodynamics |
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