JPH11510417A - 改善された光学インターフェースを使用する非侵襲的血液分析物測定の方法 - Google Patents
改善された光学インターフェースを使用する非侵襲的血液分析物測定の方法Info
- Publication number
- JPH11510417A JPH11510417A JP9508498A JP50849897A JPH11510417A JP H11510417 A JPH11510417 A JP H11510417A JP 9508498 A JP9508498 A JP 9508498A JP 50849897 A JP50849897 A JP 50849897A JP H11510417 A JPH11510417 A JP H11510417A
- Authority
- JP
- Japan
- Prior art keywords
- analyte
- tissue
- index matching
- matching medium
- refractive index
- Prior art date
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Classifications
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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
- A61B5/145—Measuring characteristics of blood in vivo, e.g. gas concentration, pH value; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid, cerebral tissue
- A61B5/1455—Measuring characteristics of blood in vivo, e.g. gas concentration, pH value; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid, cerebral tissue using optical sensors, e.g. spectral photometrical oximeters
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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
- A61B5/145—Measuring characteristics of blood in vivo, e.g. gas concentration, pH value; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid, cerebral tissue
- A61B5/14532—Measuring characteristics of blood in vivo, e.g. gas concentration, pH value; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid, cerebral tissue for measuring glucose, e.g. by tissue impedance measurement
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B2562/00—Details of sensors; Constructional details of sensor housings or probes; Accessories for sensors
- A61B2562/14—Coupling media or elements to improve sensor contact with skin or tissue
- A61B2562/146—Coupling media or elements to improve sensor contact with skin or tissue for optical coupling
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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
- A61B5/145—Measuring characteristics of blood in vivo, e.g. gas concentration, pH value; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid, cerebral tissue
- A61B5/1495—Calibrating or testing of in-vivo probes
Abstract
Description
Claims (1)
- 【特許請求の範囲】 1.人体組織内の血液分析物の濃度を測定する非侵襲的方法であって、 (a)赤外線吸収を測定するための装置を提供する工程と、前記装置が赤外線 エネルギーを複数の波長で放射するエネルギー源を有し、前記エネルギー源が入 力エレメントに動作可能に接続され、前記装置がスペクトル・アナライザーに動 作可能に接続された出力エレメントを更に有することと、 (b)屈折率整合媒体を提供し、かつ前記センサ・エレメントを屈折率整合媒 体を介して分析物含有組織に接触させるべく若干量の屈折率整合媒体を人体組織 と、入力エレメント及び出力エレメントとの間に配置する工程と、 (c)前記入力エレメントを介することによって、赤外線エネルギーの複数の 波長で前記組織を照射する工程と、これによって前記複数の波長の少なくとも一 部の特異的吸収が生じることと、 (d)前記の吸収されなかった赤外線エネルギー、即ち非吸収赤外線エネルギ ーの少なくとも一部を出力エレメントによって集め、次いで前記非吸収赤外線エ ネルギーの複数の波長の強度をそれぞれ測定し、さらには血液分析物濃度をアル ゴリズム及びモデルを使用して計算する工程と を含む方法。 2.前記入力エレメント及び出力エレメントは1つのセンサ・エレメント内に含 まれる請求項1に記載の方法。 3.前記屈折率整合媒体は照射する組織の屈折率にほぼ整合する屈折率を有する 請求項1に記載の方法。 4.前記屈折率整合媒体は1.30〜1.45の屈折率を有する請求項3に記載 の方法。 5.人体組織内の血液分析物の濃度を測定する非侵襲的方法であって、 (a)赤外線吸収を測定するための装置を提供する工程と、前記装置が赤外線 エネルギーを複数の波長で放射するエネルギー源を有し、前記エネルギー源がセ ンサ・エレメントの入力エレメントに動作可能に接続され、前記装置がスペクト ル・アナライザーに動作可能に接続された出力エレメントをセンサ・エレメント 内に更に有することと、 (b)サンプル領域を分析物含有組織の皮膚表面上で選択する工程と、 (c)屈折率整合媒体を提供し、かつ若干量の屈折率整合媒体をセンサ・エレ メント及びサンプル領域の間に配置する工程と、 (d)前記センサ・エレメントを屈折率整合媒体を介して分析物含有組織に接 触させるべく、前記入力エレメント及び出力エレメントを前記若干量の屈折率整 合媒体に接触させる工程と、 (e)前記入力エレメントを介して前記分析物含有組織を照射し、これによっ て前記複数の波長の少なくとも一部の特異的吸収が生じ、次いで前記複数の波長 の特異的吸収をスペクトル・アナライザーに接続された出力エレメントを介して 測定する工程と を含む方法。 6.前記特異的吸収と、既知の複数の分析物含有組織サンプル上で得られた特異 的吸収データを含むモデルとを比較することにより、前記分析物含有組織内の血 液分析物の濃度をスペクトル・アナライザーを用いて計算する工程を更に含む請 求項5に記載の方法。 7.前記分析物含有組織の特異的吸収を前記モデルと比較すべく偏最小二乗解析 を使用する請求項6に記載の方法。 8.前記入力エレメント及び出力エレメントは光学レンズをそれぞれ含む請求項 5に記載の方法。 9.前記サンプル領域は患者の前腕の底面上に位置する皮膚表面である請求項5 に記載の方法。 10.前記屈折率整合媒体はペルフルオロカーボン及びクロロフルオロカーボン の混合物を含む請求項5に記載の方法。 11.前記屈折率整合媒体は約1.30〜1.40の屈折率を有する請求項10 に記載の方法。 12.人体組織内の血液分析物の濃度を測定する非侵襲的方法であって、 (a)赤外線吸収を測定するための装置を提供する工程と、前記装置が赤外線 エネルギーを複数の波長で放射するエネルギー源を有し、前記エネルギー源がセ ンサ・エレメントの入力エレメントに動作可能に接続され、前記装置がスペクト ル・アナライザーに動作可能に接続された出力エレメントをセンサ・エレメント 内に更に有することと、 (b)サンプル領域を分析物含有組織の皮膚表面上で選択する工程と、 (c)屈折率整合媒体を提供し、第1の量の屈折率整合媒体を入力エレメント 及びサンプル領域の間に配置し、第2の量の屈折率整合媒体を出力エレメントと 、前記サンプル領域の反対側表面との間に配置する工程と、 (d)前記センサ・エレメントを第1の量の屈折率整合媒体及び第2の量の屈 折率整合媒体をそれぞれ介して分析物含有組織に接触させるべく、入力エレメン トを第1の量の屈折率整合媒体に接触させ、かつ出力エレメントを第2の量の屈 折率整合媒体に接触させる工程と、 (e)前記入力エレメントを介して前記分析物含有組織を照射し、これによっ て前記複数の波長の少なくとも一部の特異的吸収が生じ、次いで前記複数の波長 の一部を分析物含有組織を介して前記スペクトル・アナライザーに接続された出 力エレメントへ伝搬させることにより、前記特異的吸収を測定する工程と を含む方法。 13.前記特異的吸収と、既知の複数の分析物含有組織サンプル上で得られた特 異的吸収データを含むモデルとを比較することにより、前記分析物含有組織内の 血液分析物の濃度をスペクトル・アナライザーを用いて計算する工程を更に含む 請求項12に記載の方法。 14.前記分析物含有組織の特異的吸収を前記モデルと比較すべく偏最小二乗解 析を使用する請求項13に記載の方法。 15.前記入力エレメント及び出力エレメントは光学レンズをそれぞれ含む請求 項12に記載の方法。 16.前記サンプル領域は患者の前腕の底面上に位置する皮膚表面である請求項 12に記載の方法。 17.前記屈折率整合媒体はペルフルオロカーボン及びクロロフルオロカーボン の混合物を含む請求項12に記載の方法。 18.前記屈折率整合媒体は約1.30〜1.40の屈折率を有する請求項17 に記載の方法。 19.身体の皮膚表面下に位置する複数の成分による複数の波長での赤外線エネ ルギーの吸収を測定する際に、光学インターフェースを身体の皮膚表面及びスペ クトログラフィック・センサ・エレメントの間に形成する流体組成物であって、 (a)約80〜90%のペルフルオロカーボン及びクロロフルオロカーボンの 混合物と、 (b)約1〜20%の親水性添加物と を含む流体組成物。 20.前記親水性添加物はイソプロピル・アルコールである請求項19に記載の 流体組成物。 21.前記ペルフルオロカーボン及びクロロフルオロカーボンの混合物は約90 %のクロロトリフルオロエテン及び約10%の別の複数のフルオロカーボンを含 む請求項19に記載の流体組成物。 22.約1〜10%のクレンジング剤を更に有し、同クレンジング剤は少なくと もミネラル・オイルを含む請求項19に記載の流体組成物。 23.約1〜5%の表面活性剤を更に有し、同表面活性剤は少なくとも硫酸ドデ シルナトリウムを含む請求項19に記載の流体組成物。 24.前記流体の屈折率は約1.30〜1.40である請求項19に記載の流体 組成物。 25.前記流体の屈折率は約1.38である請求項19に記載の流体組成物。 26.殺菌剤添加物を更に有する請求項15に記載の流体組成物。 27.光学インターフェースを皮膚表面と、血液分析物の非侵襲的測定のための センサ・エレメントとの間に形成する流体であって、以下の特徴、即ち、 (a)人体に無毒であることと、 (b)センサ・エレメントを損傷しないことと、 (c)一定の屈折率を流体全体にわたって維持する一方で、組織の凹凸のある 表面を充填し得ること を含む流体。 28.前記流体は組織の屈折率に整合する屈折率を有する請求項27に記載の流 体。 29.前記流体は1.30〜1.45の屈折率を有する請求項28に記載の流体 。 30.人体組織内の血液分析物の非侵襲的測定を行うための定量分析装置であっ て、 (a)光線の少なくとも3つの波長の供給源と、前記3つの波長が500〜2 500nmの範囲内にあることと、 (b)前記光線の波長を組織内へ案内するための入力センサ・エレメントと、 吸収されなかった光線の少なくとも一部を前記組織から集めるための出力センサ ・エレメントと、 (c)前記入力センサ・エレメント及び出力センサ・エレメントは屈折率整合 媒体を両センサ・エレメントの全表面上と、両センサ・エレメント及び分析物含 有組織の間とへそれぞれ配置することを可能にすべく形成されていることと、 (d)前記出力センサ・エレメントが集めた複数の波長の少なくとも一部の強 度を測定するための少なくとも1つの検出装置と、 (e)前記血液分析物の値を推定すべく前記測定された強度を処理する電子装 置と、 (f)前記血液分析物の推定値を表示するための手段と を含む定量分析装置。 31.前記複数のセンサ・エレメントは屈折率整合媒体との併用に適合しており 、これによって屈折率整合媒体の厚さを測定期間中一定に維持する請求項30に 記載の分析装置。 32.前記複数のセンサ・エレメントは屈折率整合媒体との併用に適合しており 、これによって組織測定の都度、屈折率整合媒体の厚さを相対的に一定にする請 求項30に記載の分析装置。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US08/512,940 US5655530A (en) | 1995-08-09 | 1995-08-09 | Method for non-invasive blood analyte measurement with improved optical interface |
US512,940 | 1995-08-09 | ||
PCT/US1996/012486 WO1997005819A1 (en) | 1995-08-09 | 1996-07-30 | Method for non-invasive blood analyte measurement with improved optical interface |
Publications (2)
Publication Number | Publication Date |
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JPH11510417A true JPH11510417A (ja) | 1999-09-14 |
JP3727349B2 JP3727349B2 (ja) | 2005-12-14 |
Family
ID=24041249
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP50849897A Expired - Fee Related JP3727349B2 (ja) | 1995-08-09 | 1996-07-30 | 改善された光学インターフェースを使用する非侵襲的血液分析物測定の方法 |
Country Status (11)
Country | Link |
---|---|
US (2) | US5655530A (ja) |
EP (1) | EP0850011B1 (ja) |
JP (1) | JP3727349B2 (ja) |
CN (1) | CN1198085A (ja) |
AT (1) | ATE372718T1 (ja) |
AU (1) | AU712462B2 (ja) |
CA (2) | CA2590360A1 (ja) |
DE (1) | DE69637244T2 (ja) |
NO (1) | NO980559L (ja) |
TW (1) | TW323228B (ja) |
WO (1) | WO1997005819A1 (ja) |
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JP2003511176A (ja) * | 1999-10-08 | 2003-03-25 | リオ グランデ メディカル テクノロジーズ インコーポレイテッド | 近赤外線スペクトルによる個人識別のための装置及び方法 |
JP2003524467A (ja) * | 1999-04-29 | 2003-08-19 | アボット・ラボラトリーズ | 生体試料中のアナライト濃度の非侵襲的測定 |
JP2004500155A (ja) * | 1999-06-30 | 2004-01-08 | リオ グランデ メディカル テクノロジーズ インコーポレイテッド | 非侵襲的な血液検体測定のための方法及び装置 |
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1996
- 1996-07-27 TW TW085109180A patent/TW323228B/zh active
- 1996-07-30 EP EP96926815A patent/EP0850011B1/en not_active Expired - Lifetime
- 1996-07-30 AT AT96926815T patent/ATE372718T1/de not_active IP Right Cessation
- 1996-07-30 JP JP50849897A patent/JP3727349B2/ja not_active Expired - Fee Related
- 1996-07-30 AU AU66842/96A patent/AU712462B2/en not_active Ceased
- 1996-07-30 CA CA002590360A patent/CA2590360A1/en not_active Abandoned
- 1996-07-30 DE DE69637244T patent/DE69637244T2/de not_active Expired - Fee Related
- 1996-07-30 WO PCT/US1996/012486 patent/WO1997005819A1/en active IP Right Grant
- 1996-07-30 CA CA002229103A patent/CA2229103A1/en not_active Abandoned
- 1996-07-30 CN CN96197260A patent/CN1198085A/zh active Pending
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1997
- 1997-04-18 US US08/844,501 patent/US5823951A/en not_active Expired - Fee Related
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Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2003524467A (ja) * | 1999-04-29 | 2003-08-19 | アボット・ラボラトリーズ | 生体試料中のアナライト濃度の非侵襲的測定 |
JP2004500155A (ja) * | 1999-06-30 | 2004-01-08 | リオ グランデ メディカル テクノロジーズ インコーポレイテッド | 非侵襲的な血液検体測定のための方法及び装置 |
JP2003511176A (ja) * | 1999-10-08 | 2003-03-25 | リオ グランデ メディカル テクノロジーズ インコーポレイテッド | 近赤外線スペクトルによる個人識別のための装置及び方法 |
US8315681B2 (en) | 2005-11-30 | 2012-11-20 | Toshiba Medical Systems Corporation | Method for noninvasive measurement of glucose and apparatus for noninvasive measurement of glucose |
JP2013140126A (ja) * | 2012-01-06 | 2013-07-18 | Seiko Epson Corp | 濃度定量装置、濃度定量方法及びプログラム |
JP2013138811A (ja) * | 2012-01-06 | 2013-07-18 | Seiko Epson Corp | 濃度定量装置、濃度定量方法及びプログラム |
Also Published As
Publication number | Publication date |
---|---|
NO980559D0 (no) | 1998-02-09 |
TW323228B (ja) | 1997-12-21 |
EP0850011A4 (en) | 1999-11-10 |
CN1198085A (zh) | 1998-11-04 |
US5655530A (en) | 1997-08-12 |
DE69637244T2 (de) | 2008-08-14 |
CA2590360A1 (en) | 1997-02-20 |
ATE372718T1 (de) | 2007-09-15 |
EP0850011B1 (en) | 2007-09-12 |
CA2229103A1 (en) | 1997-02-20 |
WO1997005819A1 (en) | 1997-02-20 |
DE69637244D1 (de) | 2007-10-25 |
EP0850011A1 (en) | 1998-07-01 |
NO980559L (no) | 1998-02-09 |
JP3727349B2 (ja) | 2005-12-14 |
AU712462B2 (en) | 1999-11-04 |
AU6684296A (en) | 1997-03-05 |
US5823951A (en) | 1998-10-20 |
MX9801048A (es) | 1998-10-31 |
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