JP5647763B2 - センサの安定化のためのシステム - Google Patents
センサの安定化のためのシステム Download PDFInfo
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- JP5647763B2 JP5647763B2 JP2008548644A JP2008548644A JP5647763B2 JP 5647763 B2 JP5647763 B2 JP 5647763B2 JP 2008548644 A JP2008548644 A JP 2008548644A JP 2008548644 A JP2008548644 A JP 2008548644A JP 5647763 B2 JP5647763 B2 JP 5647763B2
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- 238000011105 stabilization Methods 0.000 title claims description 74
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- NDVLTYZPCACLMA-UHFFFAOYSA-N silver oxide Chemical compound [O-2].[Ag+].[Ag+] NDVLTYZPCACLMA-UHFFFAOYSA-N 0.000 description 2
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Images
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
- A61B5/1495—Calibrating or testing of in-vivo probes
-
- 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
-
- 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
- A61B5/1486—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 enzyme electrodes, e.g. with immobilised oxidase
- A61B5/14865—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 enzyme electrodes, e.g. with immobilised oxidase invasive, e.g. introduced into the body by a catheter or needle or using implanted sensors
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/48—Other medical applications
- A61B5/4836—Diagnosis combined with treatment in closed-loop systems or methods
- A61B5/4839—Diagnosis combined with treatment in closed-loop systems or methods combined with drug delivery
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/26—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating electrochemical variables; by using electrolysis or electrophoresis
- G01N27/28—Electrolytic cell components
- G01N27/30—Electrodes, e.g. test electrodes; Half-cells
- G01N27/327—Biochemical electrodes, e.g. electrical or mechanical details for in vitro measurements
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/26—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating electrochemical variables; by using electrolysis or electrophoresis
- G01N27/28—Electrolytic cell components
- G01N27/30—Electrodes, e.g. test electrodes; Half-cells
- G01N27/327—Biochemical electrodes, e.g. electrical or mechanical details for in vitro measurements
- G01N27/3271—Amperometric enzyme electrodes for analytes in body fluids, e.g. glucose in blood
- G01N27/3274—Corrective measures, e.g. error detection, compensation for temperature or hematocrit, calibration
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B2560/00—Constructional details of operational features of apparatus; Accessories for medical measuring apparatus
- A61B2560/02—Operational features
- A61B2560/0223—Operational features of calibration, e.g. protocols for calibrating sensors
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M2230/00—Measuring parameters of the user
- A61M2230/20—Blood composition characteristics
- A61M2230/201—Glucose concentration
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
- A61M5/168—Means for controlling media flow to the body or for metering media to the body, e.g. drip meters, counters ; Monitoring media flow to the body
- A61M5/172—Means for controlling media flow to the body or for metering media to the body, e.g. drip meters, counters ; Monitoring media flow to the body electrical or electronic
- A61M5/1723—Means for controlling media flow to the body or for metering media to the body, e.g. drip meters, counters ; Monitoring media flow to the body electrical or electronic using feedback of body parameters, e.g. blood-sugar, pressure
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Physics & Mathematics (AREA)
- General Health & Medical Sciences (AREA)
- Molecular Biology (AREA)
- Pathology (AREA)
- Engineering & Computer Science (AREA)
- Veterinary Medicine (AREA)
- Surgery (AREA)
- Animal Behavior & Ethology (AREA)
- Medical Informatics (AREA)
- Heart & Thoracic Surgery (AREA)
- Public Health (AREA)
- Biomedical Technology (AREA)
- Biophysics (AREA)
- Chemical & Material Sciences (AREA)
- Optics & Photonics (AREA)
- Immunology (AREA)
- General Physics & Mathematics (AREA)
- Biochemistry (AREA)
- Analytical Chemistry (AREA)
- Electrochemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Hematology (AREA)
- Emergency Medicine (AREA)
- Bioinformatics & Cheminformatics (AREA)
- Medicinal Chemistry (AREA)
- Pharmacology & Pharmacy (AREA)
- Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
Description
12 可撓性センサ、センサ、可撓性電気化学的センサ
14 中空のスロット付き挿入針、針
16 カニューレ
18 感知部
20 センサ電極
24 接続部分
100 センサエレクトロニクス装置、モニタ
102 ケーブル
104 接続部分、コネクタ部、ケーブルコネクタ
110 電源
122 センサインターフェイス
124 処理用電子回路部
220 基板、センサ基板
226 ケーシング
248 基準電極
240、242、244、246 対電極/作用電極の対2つ
310 センサ電極
312 データ変換器
314 カウンタ
316 制御論理
318 線路インターフェイス
320 入力および出力の線路
322 電力整流器
350 センサセットまたはシステム
355 センサ
360 センサエレクトロニクス装置
365 対電極
370 基準電極
375 作用電極
380 電力供給装置
385 レギュレータ
390 信号処理部
395 測定処理部
400 センサセットまたはセンサシステム
410 マイクロコントローラ
420 デジタル/アナログ変換器(DAC)、DAC
430 電流/周波数変換器(I/F変換器)
431 センサ信号測定回路、センサ信号測定装置
450 センサエレクトロニクス装置
510 センサ電極、センサ
530 オペアンプ
532 基準電極
534 作用電極
536 対電極
538 回路/電極インターフェイス
810 電圧生成または印加装置、電圧生成装置、電圧印加装置
811 接続端子
820 入力装置
830 測定メモリ
840 演算増幅器、オペアンプ
850 スイッチ
860 制御回路、制御装置
865 タイマ
870 2ポジションスイッチ、スイッチ
880 電圧降圧コンバータすなわちバックコンバータ
890 スイッチ
891 正弦波生成装置、正弦波電圧生成器
892 ランプ電圧生成装置
893 定電圧生成装置
950 解析モジュール
1010 コネクタ、センサ
1012 センサ
1020 電極、センサ電極
1024 接続部分
1025 センサエレクトロニクス装置
1030 電力供給装置
1035 レギュレータ
1040 信号処理部
1045 測定処理部
1050 処理部
1060 水和検出回路
1065 タイマモジュール
1070 接続検出モジュール
1083 検出器
1088 スイッチ
1120 センサ組立体、センサ
1125 センサエレクトロニクス装置
1135 タイマ回路
1140 スイッチ
1160 接続検出機構、機械スイッチ
1170 ポテンシオスタット回路
1175 処理部
1180 電流/周波数変換器
1220 センサ
1221 対電極
1222 基準電極
1223 作用電極
1225 センサエレクトロニクス装置
1250 水和検出エレクトロニクス
1255 交流源
1260 検出回路
1275 電圧設定装置
1277 インピーダンス測定装置、インピーダンス測定要素
Claims (5)
- 複数の電極を含む、患者の体内に埋設されたセンサと、
センサエレクトロニクス装置と
を備える血糖センシングシステムであって、前記センサエレクトロニクス装置が、安定化回路を含み、前記安定化回路が、負の第1の電圧を前記複数の電極のうちの1つに供給して前記センサ内でアノードのサイクルを開始し、正の第2の電圧を前記複数の電極のうちの前記1つに供給して前記センサ内でカソードのサイクルを開始し、前記第1の電圧および前記第2の電圧の前記印加を反復して前記アノード-カソードのサイクルを続け、
前記安定化回路が、マイクロコントローラを含み、前記マイクロコントローラが、印加される前記第1の電圧を示す第1の信号を前記センサに伝送し、前記第2の電圧を示す第2の信号をやはり伝送し、
前記安定化回路が、前記センサの電気的特性を測定し前記電気的特性の測定値を示す読取り値を前記マイクロコントローラに伝送するための解析回路をさらに含み、
前記解析回路が、前記電気的特性の測定値を前記電気的特性の所定の測定基準と比較するように構成され、前記電気的特性の測定値が前記所定の測定基準に適合する場合に、前記マイクロコントローラが、以下の動作、すなわちパルスの印加の変更、パルスのタイミングの変更、および安定化ルーチンの終了の1つを行うための信号を生成する、血糖センシングシステム。 - 前記複数の電極のうちの前記1つが、対電極である、請求項1に記載の血糖センシングシステム。
- 前記安定化回路が、前記第1の電圧を示す前記第1の信号および前記第2の電圧を示す前記第2の信号を受信し前記第1の電圧および前記第2の電圧を前記複数の電極のうちの前記1つに印加するためのデジタル/アナログ変換器(DAC)をさらに含む、請求項1に記載の血糖センシングシステム。
- 前記安定化回路が、前記複数の電極のうちの前記1つに結合され前記第1の電圧および前記第2の電圧を前記DACから受信し前記第1の電圧および前記第2の電圧を前記複数の電極のうちの前記1つに印加するためのオペアンプをさらに含む、請求項3に記載の血糖センシングシステム。
- 前記センサの前記電気的特性が、電圧、電流、抵抗およびインピーダンスのうちの1つである、請求項1に記載の血糖センシングシステム。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/322,977 | 2005-12-30 | ||
US11/322,977 US20070173712A1 (en) | 2005-12-30 | 2005-12-30 | Method of and system for stabilization of sensors |
PCT/US2006/048950 WO2007079015A2 (en) | 2005-12-30 | 2006-12-21 | Method of and system for stabilization of sensors |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2009521997A JP2009521997A (ja) | 2009-06-11 |
JP5647763B2 true JP5647763B2 (ja) | 2015-01-07 |
Family
ID=38228789
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2008548644A Expired - Fee Related JP5647763B2 (ja) | 2005-12-30 | 2006-12-21 | センサの安定化のためのシステム |
Country Status (6)
Country | Link |
---|---|
US (9) | US20070173712A1 (ja) |
EP (2) | EP2578142B1 (ja) |
JP (1) | JP5647763B2 (ja) |
CA (3) | CA2633675C (ja) |
DK (1) | DK1968429T3 (ja) |
WO (1) | WO2007079015A2 (ja) |
Families Citing this family (74)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AU2003303597A1 (en) | 2002-12-31 | 2004-07-29 | Therasense, Inc. | Continuous glucose monitoring system and methods of use |
US8066639B2 (en) | 2003-06-10 | 2011-11-29 | Abbott Diabetes Care Inc. | Glucose measuring device for use in personal area network |
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CA2829673C (en) | 2016-12-20 |
US20170079564A1 (en) | 2017-03-23 |
US9549698B2 (en) | 2017-01-24 |
WO2007079015A9 (en) | 2008-10-23 |
CA2947916A1 (en) | 2007-07-12 |
EP1968429A2 (en) | 2008-09-17 |
US20070173712A1 (en) | 2007-07-26 |
US20110106479A1 (en) | 2011-05-05 |
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US20110125447A1 (en) | 2011-05-26 |
DK1968429T3 (da) | 2013-07-08 |
CA2947916C (en) | 2018-12-11 |
US20110101995A1 (en) | 2011-05-05 |
US20110106480A1 (en) | 2011-05-05 |
CA2633675C (en) | 2013-12-17 |
US11980463B2 (en) | 2024-05-14 |
US20110130988A1 (en) | 2011-06-02 |
CA2633675A1 (en) | 2007-07-12 |
WO2007079015A3 (en) | 2008-05-29 |
EP2578142A1 (en) | 2013-04-10 |
WO2007079015A2 (en) | 2007-07-12 |
US10420496B2 (en) | 2019-09-24 |
EP1968429B1 (en) | 2013-04-10 |
US20190357816A1 (en) | 2019-11-28 |
EP2578142B1 (en) | 2018-02-14 |
CA2829673A1 (en) | 2007-07-12 |
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