JP2000510588A - 組織内グルコース濃度の決定 - Google Patents
組織内グルコース濃度の決定Info
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- JP2000510588A JP2000510588A JP09540418A JP54041897A JP2000510588A JP 2000510588 A JP2000510588 A JP 2000510588A JP 09540418 A JP09540418 A JP 09540418A JP 54041897 A JP54041897 A JP 54041897A JP 2000510588 A JP2000510588 A JP 2000510588A
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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 or pH-value ; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid or cerebral tissue
- A61B5/1468—Measuring characteristics of blood in vivo, e.g. gas concentration or pH-value ; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid or cerebral tissue using chemical or electrochemical methods, e.g. by polarographic means
- A61B5/1486—Measuring characteristics of blood in vivo, e.g. gas concentration or pH-value ; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid or cerebral tissue using chemical or electrochemical methods, e.g. by polarographic means using enzyme electrodes, e.g. with immobilised oxidase
- A61B5/14865—Measuring characteristics of blood in vivo, e.g. gas concentration or pH-value ; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid or cerebral tissue using chemical or electrochemical methods, e.g. by polarographic means using enzyme electrodes, e.g. with immobilised oxidase invasive, e.g. introduced into the body by a catheter or needle or using implanted sensors
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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 or pH-value ; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid or cerebral tissue
- A61B5/14525—Measuring characteristics of blood in vivo, e.g. gas concentration or pH-value ; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid or cerebral tissue using microdialysis
- A61B5/14528—Measuring characteristics of blood in vivo, e.g. gas concentration or pH-value ; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid or cerebral tissue using microdialysis invasively
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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 or pH-value ; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid or cerebral tissue
- A61B5/14532—Measuring characteristics of blood in vivo, e.g. gas concentration or pH-value ; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid or 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
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/68—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient
- A61B5/6846—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient specially adapted to be brought in contact with an internal body part, i.e. invasive
- A61B5/6847—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient specially adapted to be brought in contact with an internal body part, i.e. invasive mounted on an invasive device
- A61B5/686—Permanently implanted devices, e.g. pacemakers, other stimulators, biochips
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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
- A61B5/72—Signal processing specially adapted for physiological signals or for diagnostic purposes
- A61B5/7203—Signal processing specially adapted for physiological signals or for diagnostic purposes for noise prevention, reduction or removal
- A61B5/7207—Signal processing specially adapted for physiological signals or for diagnostic purposes for noise prevention, reduction or removal of noise induced by motion artifacts
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Physics & Mathematics (AREA)
- Biomedical Technology (AREA)
- Medical Informatics (AREA)
- Veterinary Medicine (AREA)
- Public Health (AREA)
- Biophysics (AREA)
- Pathology (AREA)
- Engineering & Computer Science (AREA)
- General Health & Medical Sciences (AREA)
- Heart & Thoracic Surgery (AREA)
- Animal Behavior & Ethology (AREA)
- Molecular Biology (AREA)
- Surgery (AREA)
- Optics & Photonics (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Emergency Medicine (AREA)
- Investigating Or Analysing Biological Materials (AREA)
- External Artificial Organs (AREA)
- Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
Abstract
Description
Claims (1)
- 【特許請求の範囲】 1. 灌流液18が、液体柱として、組織10内に埋め込んだミクロ透析ゾンデ12を 経由して、好ましくは体外に置かれた測定セル14へ送液され、そして、測定セル 14を貫流する灌流液18中のグルコース含量が連続的に検出される測定シグナルか ら決定されることからなる、組織内のグルコース濃度を決定し、そして監視する ための方法であって、透析期間T1における灌流液18の体積流量を時間平均で低 減することV0、および各透析期間T1中にミクロ透析ゾンデ12を通って灌流する 灌流液18の体積を、その後に続く輸送期間T2に、その都度、より大きな体積流 量V1でその先にある測定セル14へ送ることを特徴とする、組織内のグルコース 濃度を決定し、そして監視するための方法。 2. ミクロ透析ゾンデ12を通過する前に灌流液18にグルコースを添加し、あらか じめ定めた、好ましくは生理的な範囲にあるよう、初濃度を調整することを特徴 とする請求の範囲第1項記載の方法。 3. ミクロ透析ゾンデ12を通過する際に灌流液18中のグルコース含量の変化が10 %未満、好ましくは5%未満に収まるように、輸送期間T2中の灌流液18の体積流 量V1を調節することを特徴とする請求の範囲第1項または第2項記載の方法。 4. ミクロ透析ゾンデ12を通過する際に灌流液18中のグルコース含量が、実質的 に組織内のグルコース濃度に等しくなるように、透析期間T1中の灌流液18の体 積流量V0を調節することを特徴とする請求の範囲第1 項、第2項または第3項記載の方法。 5. より大きな体積流量V1で灌流する灌流液18の体積が測定セル14を通過する 際に測定シグナルを検出して、ベースライン値を決定することを特徴とする請求 の範囲第1項、第2項、第3項または第4項記載の方法。 6. 各輸送期間T2のたびごとに測定セル14で検出される測定シグナルの極値ま たは積分値から組織内のグルコース濃度を決定することを特徴とする請求の範囲 第1項、第2項、第3項、第4項または第5項記載の方法。 7. 組織内のグルコース濃度を決定するために、極値と、正のピークもしくは負 のピークとして形成される測定シグナルの時間経過のベースライン値の比を作る こと、および前記比にグルコースの初濃度の値および、場合によっては、あらか じめ設定された校正値を乗ずることを特徴とする請求の範囲第5項または第6項 記載の方法。 8. 1つの輸送期間T2から次の輸送期間までの時間T1+T2によってあらかじ め定められた時間間隔の測定シグナルの妥当性を検査するために、測定シグナル の極値を監視することを特徴とする請求の範囲第1項、第2項、第3項、第4項 、第5項、第6項、または第7項記載の方法。 9. 決定されたシグナルが妥当かどうか検査するために各輸送期間T2中に測定 セル14で検出される測定シグナルの時間経過を分析し、もし濃度の値が、調整し たグルコースの初濃度より高ければ正のピークが、また、もし低ければ負のピー クが妥当なピークの形とし て期待されることを特徴とする請求の範囲第2項、第3項、第4項、第5項、第 6項、第7項または第8項記載の方法。 10.グルコース初濃度を低濃度値に設定すること、および測定シグナルが時間経 過の過程で負のピークを描く場合、低濃度アラームが解除されることとを特徴と する請求項の範囲第2項、第3項、第4項、第5項、第6項、第7項、第8項ま たは第9項記載の方法。 11.グルコースの初濃度を、フェーズに従って、交互に低濃度値と高濃度値に設 定すること、そして、設定が低濃度値のフェーズにある時に測定シグナルが時間 経過の過程で負のピークを描く場合、および設定が高濃度のフェーズにある時に 正のピークを描く場合、警報信号が解除されることを特徴とする請求の範囲第2 項、第3項、第4項、第5項、第6項、第7項、第8項、第9項または第10項記 載の方法。 12.測定シグナルの時間経過の定性的なパターン認識において、1つの輸送期間T 2から次の輸送期間までの間T1+T2に検出された極値を、そのたびごとに割り 当てられるベースライン値と比較し、もし、極値がベースライン値より大きけれ ば、シグナルは正のピーク、そして、もし極値がベースライン値より小さければ 負のピークと認識されることを特徴とする請求の範囲第1項、第2項、第3項、 第4項、第5項、第6項、第7項、第8項、第9項、第10項または第11項記載の 方法。 13.透析期間T1にある灌流液18が、相互に時間間隔38を置いた複数回の送出し36 により、ミクロ透析ゾンデ 12を通過して送液されることを特徴とする請求の範囲第1項、第2項、第3項、 第4項、第5項、第6項、第7項、第8項、第9項、第10項、第11項または第12 項記載の方法。 14.各送出し36において、実質的にミクロ透析ゾンデ12の内容積に一致する体積 の灌流液18が送液されることを特徴とする請求の範囲第13項記載の方法。 15.ある瞬間、ミクロ透析ゾンデ12内に存在する灌流液18の体積内に含まれるグ ルコースの含量が、実質的に、組織内のグルコースの濃度と等しくなるように、 送出し36の間の送液停止期間38を割り当てることを特徴とする請求の範囲第13項 または第14項記載の方法。 16.透析期間T1中の灌流液18の体積流量V1を一定値V0に低減することを特徴と する請求の範囲第1項、第2項、第3項、第4項、第5項、第6項、第7項、第 8項、第10項、第11項、第12項、第13項、第14項または第15項に記載の方法。 17.組織10内のグルコースの濃度を決定し、監視するための測定装置であって、 あらかじめ設定した初濃度の溶解グルコースを含み、灌流液チューブと接続可能 な少なくとも1つの容器20を特徴とし、組織内に埋め込みが可能であって、入り 口側が灌流液チューブ21を経由して灌流液18に至り、出口側が透析液チューブ22 を経由して流通型測定セル14と接続可能なミクロ透析ゾンデ12、および、ミクロ 透析ゾンデ12を経由して測定セル14へ灌流液を送り出すための、灌流液チューブ または透析液チューブに配置された送液装置26を含む測定装置。 18.溶解したグルコースを異なる濃度で含み、灌流液チューブと接続可能な2つの グルコース容器を特徴とする請求の範囲第17項記載の方法。 19.グルコースを含む少なくとも1つの容器20が調節弁を介して灌流液チューブ21 と接続可能であることを特徴とする請求の範囲第17項または第18項記載の方法。 20.送液装置が、好ましくは、間隔を置いて動作する定量ポンプ26を含むことを 特徴とする請求の範囲第17項、第18項または第19項記載の方法。
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19618597.1 | 1996-05-09 | ||
| DE19618597A DE19618597B4 (de) | 1996-05-09 | 1996-05-09 | Verfahren zur Bestimmung der Konzentration von Gewebeglucose |
| PCT/EP1997/001075 WO1997042868A1 (de) | 1996-05-09 | 1997-03-04 | Bestimmung der konzentration von gewebeglucose |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2007001711A Division JP4057043B2 (ja) | 1996-05-09 | 2007-01-09 | 組織内グルコース濃度の決定 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2000510588A true JP2000510588A (ja) | 2000-08-15 |
| JP3933206B2 JP3933206B2 (ja) | 2007-06-20 |
Family
ID=7793775
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP54041897A Expired - Fee Related JP3933206B2 (ja) | 1996-05-09 | 1997-03-04 | 組織内グルコース濃度の決定 |
| JP2007001711A Expired - Fee Related JP4057043B2 (ja) | 1996-05-09 | 2007-01-09 | 組織内グルコース濃度の決定 |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2007001711A Expired - Fee Related JP4057043B2 (ja) | 1996-05-09 | 2007-01-09 | 組織内グルコース濃度の決定 |
Country Status (5)
| Country | Link |
|---|---|
| US (2) | US6091976A (ja) |
| EP (1) | EP0898459A1 (ja) |
| JP (2) | JP3933206B2 (ja) |
| DE (1) | DE19618597B4 (ja) |
| WO (1) | WO1997042868A1 (ja) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008506109A (ja) * | 2004-07-08 | 2008-02-28 | チェメル・エービー | Sire流れ検出器 |
| JP2010508949A (ja) * | 2006-11-09 | 2010-03-25 | ジー−センス エルテーデー. | ほ乳類の身体内の代謝産物の濃度をほぼ連続的に測定するシステムと方法 |
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| US6091976A (en) | 2000-07-18 |
| US6434409B1 (en) | 2002-08-13 |
| DE19618597A1 (de) | 1997-11-20 |
| EP0898459A1 (de) | 1999-03-03 |
| JP2007209745A (ja) | 2007-08-23 |
| WO1997042868A1 (de) | 1997-11-20 |
| DE19618597B4 (de) | 2005-07-21 |
| JP3933206B2 (ja) | 2007-06-20 |
| JP4057043B2 (ja) | 2008-03-05 |
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