CA2413976A1 - Biosensor apparatus and method with sample type and volume detection - Google Patents
Biosensor apparatus and method with sample type and volume detection Download PDFInfo
- Publication number
- CA2413976A1 CA2413976A1 CA002413976A CA2413976A CA2413976A1 CA 2413976 A1 CA2413976 A1 CA 2413976A1 CA 002413976 A CA002413976 A CA 002413976A CA 2413976 A CA2413976 A CA 2413976A CA 2413976 A1 CA2413976 A1 CA 2413976A1
- Authority
- CA
- Canada
- Prior art keywords
- biosensor
- sample
- biosensor cell
- signal
- effective capacitance
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/48—Biological material, e.g. blood, urine; Haemocytometers
- G01N33/50—Chemical analysis of biological material, e.g. blood, urine; Testing involving biospecific ligand binding methods; Immunological testing
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/48—Biological material, e.g. blood, urine; Haemocytometers
- G01N33/50—Chemical analysis of biological material, e.g. blood, urine; Testing involving biospecific ligand binding methods; Immunological testing
- G01N33/53—Immunoassay; Biospecific binding assay; Materials therefor
- G01N33/543—Immunoassay; Biospecific binding assay; Materials therefor with an insoluble carrier for immobilising immunochemicals
- G01N33/54366—Apparatus specially adapted for solid-phase testing
- G01N33/54373—Apparatus specially adapted for solid-phase testing involving physiochemical end-point determination, e.g. wave-guides, FETS, gratings
-
- 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
- G01N27/3273—Devices therefor, e.g. test element readers, circuitry
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R27/00—Arrangements for measuring resistance, reactance, impedance, or electric characteristics derived therefrom
- G01R27/02—Measuring real or complex resistance, reactance, impedance, or other two-pole characteristics derived therefrom, e.g. time constant
- G01R27/26—Measuring inductance or capacitance; Measuring quality factor, e.g. by using the resonance method; Measuring loss factor; Measuring dielectric constants ; Measuring impedance or related variables
- G01R27/2605—Measuring capacitance
Abstract
A biosensor apparatus and method with sample type and cell volume detection.
The apparatus includes a sine wave generator to apply an AC signal to a biosensor cell containing a sample, a current-to-voltage converter, a phase shifter, a square wave generator, a synchronous demodulator, and a low pass filter which yields a signal proportional to the effective capacitance across the biosensor cell, which is proportional to the volume of the sample. In addition, the current-to-voltage converter yields a signal indicative of the type of sample contained within the biosensor cell. The method includes applying a sine wave to the biosensor cell, shifting the phase of the resultant signal, generating a square wave synchronous with the sine wave, demodulating the resultant signal with the square wave, and filtering the demodulated signal to produce a signal proportional to the effective capacitance across the biosensor cell. The biosensor apparatus and method are capable of determining sample type and measuring glucose levels over a wide range of sample volumes.
The apparatus includes a sine wave generator to apply an AC signal to a biosensor cell containing a sample, a current-to-voltage converter, a phase shifter, a square wave generator, a synchronous demodulator, and a low pass filter which yields a signal proportional to the effective capacitance across the biosensor cell, which is proportional to the volume of the sample. In addition, the current-to-voltage converter yields a signal indicative of the type of sample contained within the biosensor cell. The method includes applying a sine wave to the biosensor cell, shifting the phase of the resultant signal, generating a square wave synchronous with the sine wave, demodulating the resultant signal with the square wave, and filtering the demodulated signal to produce a signal proportional to the effective capacitance across the biosensor cell. The biosensor apparatus and method are capable of determining sample type and measuring glucose levels over a wide range of sample volumes.
Claims (28)
1. An apparatus for measuring the effective capacitance across a biosensor cell having a first conductor connection and a second conductor connection, the biosensor cell configured to receive a sample having a volume, said apparatus comprising:
a sine wave generator having an output for coupling to the first conductor connection of the biosensor cell, said sine wave generator producing an AC signal;
a current-to-voltage (I/V) converter having an input for coupling to the second conductor connection of the biosensor cell and further having an output;
a phase shifter having an input coupled to the output of said I/V converter and further having an output;
a square wave generator producing a square wave synchronous with said AC
signal;
a synchronous demodulator having an output, a first input coupled to said phase shifter, and a second input coupled to said square wave generator; and a low pass filter (LPF) having an input coupled to the output of said synchronous demodulator, said LPF producing a signal at an output proportional to an effective capacitance across the biosensor cell.
a sine wave generator having an output for coupling to the first conductor connection of the biosensor cell, said sine wave generator producing an AC signal;
a current-to-voltage (I/V) converter having an input for coupling to the second conductor connection of the biosensor cell and further having an output;
a phase shifter having an input coupled to the output of said I/V converter and further having an output;
a square wave generator producing a square wave synchronous with said AC
signal;
a synchronous demodulator having an output, a first input coupled to said phase shifter, and a second input coupled to said square wave generator; and a low pass filter (LPF) having an input coupled to the output of said synchronous demodulator, said LPF producing a signal at an output proportional to an effective capacitance across the biosensor cell.
2. The apparatus of claim 1, further comprising:
a DC voltage source coupled to the first conductor connection of the biosensor cell, said DC voltage source adding a DC component to said first conductor.
a DC voltage source coupled to the first conductor connection of the biosensor cell, said DC voltage source adding a DC component to said first conductor.
3. The apparatus of claim 2, wherein said phase shifter shifts the phase of a signal out of said I/V converter and removes said DC component from said signal out of said I/V
converter.
converter.
4. The apparatus of claims 1, 2 or 3, further comprising:
an analog-to-digital (AID) converter having an analog input coupled to the output of said LPF and further having a digital output, said A/D converter converting said signal proportional to the effective capacitance across the biosensor cell from analog to digital.
an analog-to-digital (AID) converter having an analog input coupled to the output of said LPF and further having a digital output, said A/D converter converting said signal proportional to the effective capacitance across the biosensor cell from analog to digital.
5. The apparatus of claim 4, further comprising:
a processor coupled to the digital output of said A/D converter to process said digital signal proportional to the effective capacitance across the biosensor cell to derive the effective capacitance across the biosensor cell.
a processor coupled to the digital output of said A/D converter to process said digital signal proportional to the effective capacitance across the biosensor cell to derive the effective capacitance across the biosensor cell.
6. The apparatus of claim 5, said processor further deriving the volume of the sample based on the effective capacitance across the biosensor cell.
7. The apparatus of claims 1 to 6, wherein said sine wave generator generates a synthesized sine wave.
8. The apparatus of claim 7, wherein said synthesized sine wave is a stair type sine wave.
9. A biosensor for measuring components within a sample, said biosensor comprising:
an apparatus according to any of the preceding claims.
an apparatus according to any of the preceding claims.
10. A method for measuring the effective capacitance across a biosensor cell having a first conductor connection and a second conductor connection, the biosensor cell configured for use in a biosensor to receive a sample having a volume, said method comprising:
Employing said apparatus of claims 1 to 8 to measure the effective capacitance gross said biosensor cell.
Employing said apparatus of claims 1 to 8 to measure the effective capacitance gross said biosensor cell.
11. The method according to claim 10, wherein said method is a method of measuring glucose.
12. The biosensor of claim 9, further comprising:
a DC voltage source coupled to the first conductor of said biosensor cell, said DC
voltage source adding a DC component to the apparatus.
a DC voltage source coupled to the first conductor of said biosensor cell, said DC
voltage source adding a DC component to the apparatus.
13. The biosensor of claim 12, wherein said phase shifter shifts the phase of a signal out of said I/V converter and removes said DC component.
14. The biosensor of claim 12, further comprising:
an analog-to-digital (A/D) converter having a digital output and an analog input, said analog input coupled to the output of the I/V converter through a first switch and coupled to the output of said LPF through a second switch, only one of said switches being closed at a time.
an analog-to-digital (A/D) converter having a digital output and an analog input, said analog input coupled to the output of the I/V converter through a first switch and coupled to the output of said LPF through a second switch, only one of said switches being closed at a time.
15. The biosensor of claim 14, further comprising:
a filter coupled between the I/V converter and the A/D converter in a path containing said first switch to remove an AC component from said path.
a filter coupled between the I/V converter and the A/D converter in a path containing said first switch to remove an AC component from said path.
16. The biosensor of claim 14, further comprising:
a processor coupled to the digital output of said A/D converter to process said digital signal proportional to the effective capacitance across the biosensor cell when said second switch is closed and to process the output of said I/V converter to determine if the sample is of a specific type when said first switch is closed.
a processor coupled to the digital output of said A/D converter to process said digital signal proportional to the effective capacitance across the biosensor cell when said second switch is closed and to process the output of said I/V converter to determine if the sample is of a specific type when said first switch is closed.
17. The biosensor of claim 14, wherein the sample is blood and the component is glucose, and wherein said processor further calculates the glucose level for the sample of blood using the derived volume.
18. The biosensor of claim 17, wherein said DC voltage source is configured to apply a first voltage of a first polarity to said biosensor cell during a first period and to apply a second DC voltage of a second polarity to said biosensor cell during a second period.
19. The biosensor of claim 18, further comprising:
a processor coupled to the digital output of said A/D converter to process said digital signal proportional to the effective capacitance across the biosensor cell when said second switch is closed, to process the output of said I/V converter when said first switch is closed to determine a first current through said biosensor cell during said first period and a second current through said biosensor cell during said second period, and determine a glucose level for said sample of blood based on said effective capacitance, said first current, and said second current.
a processor coupled to the digital output of said A/D converter to process said digital signal proportional to the effective capacitance across the biosensor cell when said second switch is closed, to process the output of said I/V converter when said first switch is closed to determine a first current through said biosensor cell during said first period and a second current through said biosensor cell during said second period, and determine a glucose level for said sample of blood based on said effective capacitance, said first current, and said second current.
20. A method for measuring the effective capacitance across a biosensor cell having a first conductor connection and a second conductor connection, the biosensor cell configured for use in a biosensor to receive a sample having a volume, said method comprising the steps of:
applying a sine wave having a determined frequency to the first conductor connection of the biosensor cell to produce an AC signal;
shifting the phase of said AC signal;
generating a square wave synchronous with said sine wave;
demodulating said AC signal with said square wave to produce a demodulated signal;
and filtering said demodulated signal to produce a signal proportional to the effective capacitance across the biosensor cell.
applying a sine wave having a determined frequency to the first conductor connection of the biosensor cell to produce an AC signal;
shifting the phase of said AC signal;
generating a square wave synchronous with said sine wave;
demodulating said AC signal with said square wave to produce a demodulated signal;
and filtering said demodulated signal to produce a signal proportional to the effective capacitance across the biosensor cell.
21. The method of claim 20, further comprising the steps of:
applying a DC voltage to the first conductor connection of the biosensor cell, said DC
voltage introducing a DC component; and removing said DC component prior to demodulating said AC signal.
applying a DC voltage to the first conductor connection of the biosensor cell, said DC
voltage introducing a DC component; and removing said DC component prior to demodulating said AC signal.
22. The method of claim 20, further comprising the step of:
converting said signal proportional to the effective capacitance of the biosensor cell from analog to digital.
converting said signal proportional to the effective capacitance of the biosensor cell from analog to digital.
23. The method of claim 20, further comprising the step of processing said signal proportional to the effective capacitance of the biosensor cell to determine the volume of the sample received by the biosensor cell.
24. The method of claim 20, further comprising the step of calibrating the biosensor.
25. The method of claim 24, wherein said calibrating step comprises the steps of obtaining a first signal average for said digital signal proportional to the effective capacitance of the biosensor cell when the sample is not received by the biosensor cell;
obtaining a second signal average when a known capacitance is coupled across the biosensor cell;
calculating a capacitance conversion slope by dividing the value of said reference capacitor by the difference between the first signal average and the second signal average;
and storing said capacitance conversion slope for correcting the signal proportional to the capacitance across the biosensor cell.
obtaining a second signal average when a known capacitance is coupled across the biosensor cell;
calculating a capacitance conversion slope by dividing the value of said reference capacitor by the difference between the first signal average and the second signal average;
and storing said capacitance conversion slope for correcting the signal proportional to the capacitance across the biosensor cell.
26. A glucose measurement method for use with a biosensor, said biosensor configured to receive a sample having a volume, said method comprising the steps of determining the volume of the sample through synchronous demodulation when the sample is received; and determining a glucose measurement for the sample if the volume is greater than a first level based on the determined volume of the sample.
27. The method of claim 26, further comprising the step of detecting whether the sample is of a specific type; and storing the glucose measurement if the sample is said specific type.
28. A method for measuring glucose levels in a sample partially filling.a biosensor cell, the biosensor cell having a filled effective capacitance, said method comprising the steps of:
determining a partially filled effective capacitance for the sample;
determining a first current level passing through the biosensor cell during a first pulse;
determining a second current level passing through the biosensor cell during a steady state portion of a second pulse;
multiplying said first current level by the ratio of the filled effective capacitance to said partially filled effective capacitance to generate a first compensated current level;
multiplying said second current level by the ratio of the filled effective capacitance to said partially filled effective capacitance to generate a second compensated current level; and calculating a glucose level for the partially filled sample based on said first and second compensated current levels.
determining a partially filled effective capacitance for the sample;
determining a first current level passing through the biosensor cell during a first pulse;
determining a second current level passing through the biosensor cell during a steady state portion of a second pulse;
multiplying said first current level by the ratio of the filled effective capacitance to said partially filled effective capacitance to generate a first compensated current level;
multiplying said second current level by the ratio of the filled effective capacitance to said partially filled effective capacitance to generate a second compensated current level; and calculating a glucose level for the partially filled sample based on said first and second compensated current levels.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/020,169 | 2001-12-12 | ||
US10/020,169 US6856125B2 (en) | 2001-12-12 | 2001-12-12 | Biosensor apparatus and method with sample type and volume detection |
Publications (2)
Publication Number | Publication Date |
---|---|
CA2413976A1 true CA2413976A1 (en) | 2003-06-12 |
CA2413976C CA2413976C (en) | 2010-06-29 |
Family
ID=21797115
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA2413976A Expired - Fee Related CA2413976C (en) | 2001-12-12 | 2002-12-11 | Biosensor apparatus and method with sample type and volume detection |
Country Status (19)
Country | Link |
---|---|
US (3) | US6856125B2 (en) |
EP (2) | EP1605253A1 (en) |
JP (1) | JP4302396B2 (en) |
KR (1) | KR100786983B1 (en) |
CN (1) | CN1273826C (en) |
AT (1) | ATE309531T1 (en) |
AU (1) | AU2002304121B2 (en) |
CA (1) | CA2413976C (en) |
DE (1) | DE60207185T2 (en) |
DK (1) | DK1324025T3 (en) |
ES (1) | ES2250593T3 (en) |
HK (1) | HK1053511A1 (en) |
IL (1) | IL153210A0 (en) |
MX (1) | MXPA02011972A (en) |
NO (1) | NO324175B1 (en) |
PL (1) | PL357711A1 (en) |
RU (1) | RU2307350C2 (en) |
SG (1) | SG112863A1 (en) |
TW (1) | TWI305265B (en) |
Families Citing this family (156)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6036924A (en) | 1997-12-04 | 2000-03-14 | Hewlett-Packard Company | Cassette of lancet cartridges for sampling blood |
US8071384B2 (en) | 1997-12-22 | 2011-12-06 | Roche Diagnostics Operations, Inc. | Control and calibration solutions and methods for their use |
US6391005B1 (en) | 1998-03-30 | 2002-05-21 | Agilent Technologies, Inc. | Apparatus and method for penetration with shaft having a sensor for sensing penetration depth |
US9927796B2 (en) | 2001-05-17 | 2018-03-27 | Sawstop Holding Llc | Band saw with improved safety system |
US6857345B2 (en) | 2000-08-14 | 2005-02-22 | Sd3, Llc | Brake positioning system |
US8459157B2 (en) | 2003-12-31 | 2013-06-11 | Sd3, Llc | Brake cartridges and mounting systems for brake cartridges |
US7225712B2 (en) | 2000-08-14 | 2007-06-05 | Sd3, Llc | Motion detecting system for use in a safety system for power equipment |
US7210383B2 (en) * | 2000-08-14 | 2007-05-01 | Sd3, Llc | Detection system for power equipment |
US8065943B2 (en) | 2000-09-18 | 2011-11-29 | Sd3, Llc | Translation stop for use in power equipment |
US7712403B2 (en) | 2001-07-03 | 2010-05-11 | Sd3, Llc | Actuators for use in fast-acting safety systems |
US20020017179A1 (en) * | 2000-08-14 | 2002-02-14 | Gass Stephen F. | Miter saw with improved safety system |
US20030056853A1 (en) | 2001-09-21 | 2003-03-27 | Gass Stephen F. | Router with improved safety system |
US7600455B2 (en) | 2000-08-14 | 2009-10-13 | Sd3, Llc | Logic control for fast-acting safety system |
US8061245B2 (en) | 2000-09-29 | 2011-11-22 | Sd3, Llc | Safety methods for use in power equipment |
US7377199B2 (en) | 2000-09-29 | 2008-05-27 | Sd3, Llc | Contact detection system for power equipment |
US7836804B2 (en) | 2003-08-20 | 2010-11-23 | Sd3, Llc | Woodworking machines with overmolded arbors |
US7827890B2 (en) | 2004-01-29 | 2010-11-09 | Sd3, Llc | Table saws with safety systems and systems to mount and index attachments |
US9724840B2 (en) | 1999-10-01 | 2017-08-08 | Sd3, Llc | Safety systems for power equipment |
US7707920B2 (en) | 2003-12-31 | 2010-05-04 | Sd3, Llc | Table saws with safety systems |
US7536238B2 (en) | 2003-12-31 | 2009-05-19 | Sd3, Llc | Detection systems for power equipment |
US7024975B2 (en) | 2000-08-14 | 2006-04-11 | Sd3, Llc | Brake mechanism for power equipment |
US20050103624A1 (en) * | 1999-10-04 | 2005-05-19 | Bhullar Raghbir S. | Biosensor and method of making |
US6813983B2 (en) | 2000-09-29 | 2004-11-09 | Sd3, Llc | Power saw with improved safety system |
US6826988B2 (en) | 2000-09-29 | 2004-12-07 | Sd3, Llc | Miter saw with improved safety system |
US8641644B2 (en) | 2000-11-21 | 2014-02-04 | Sanofi-Aventis Deutschland Gmbh | Blood testing apparatus having a rotatable cartridge with multiple lancing elements and testing means |
US9795747B2 (en) | 2010-06-02 | 2017-10-24 | Sanofi-Aventis Deutschland Gmbh | Methods and apparatus for lancet actuation |
ATE497731T1 (en) | 2001-06-12 | 2011-02-15 | Pelikan Technologies Inc | DEVICE FOR INCREASING THE SUCCESS RATE OF BLOOD YIELD OBTAINED BY A FINGER PICK |
JP4149911B2 (en) | 2001-06-12 | 2008-09-17 | ペリカン テクノロジーズ インコーポレイテッド | Electric lancet actuator |
EP1404233B1 (en) | 2001-06-12 | 2009-12-02 | Pelikan Technologies Inc. | Self optimizing lancing device with adaptation means to temporal variations in cutaneous properties |
US7682318B2 (en) | 2001-06-12 | 2010-03-23 | Pelikan Technologies, Inc. | Blood sampling apparatus and method |
US9427532B2 (en) | 2001-06-12 | 2016-08-30 | Sanofi-Aventis Deutschland Gmbh | Tissue penetration device |
US9226699B2 (en) | 2002-04-19 | 2016-01-05 | Sanofi-Aventis Deutschland Gmbh | Body fluid sampling module with a continuous compression tissue interface surface |
US7981056B2 (en) | 2002-04-19 | 2011-07-19 | Pelikan Technologies, Inc. | Methods and apparatus for lancet actuation |
US7025774B2 (en) | 2001-06-12 | 2006-04-11 | Pelikan Technologies, Inc. | Tissue penetration device |
US8337419B2 (en) | 2002-04-19 | 2012-12-25 | Sanofi-Aventis Deutschland Gmbh | Tissue penetration device |
EP1404235A4 (en) | 2001-06-12 | 2008-08-20 | Pelikan Technologies Inc | Method and apparatus for lancet launching device integrated onto a blood-sampling cartridge |
US20060006141A1 (en) * | 2001-11-16 | 2006-01-12 | Stefan Ufer | Biomedical electrochemical sensor array and method of fabrication |
US9248267B2 (en) | 2002-04-19 | 2016-02-02 | Sanofi-Aventis Deustchland Gmbh | Tissue penetration device |
US7331931B2 (en) | 2002-04-19 | 2008-02-19 | Pelikan Technologies, Inc. | Method and apparatus for penetrating tissue |
US7674232B2 (en) | 2002-04-19 | 2010-03-09 | Pelikan Technologies, Inc. | Method and apparatus for penetrating tissue |
US7909778B2 (en) | 2002-04-19 | 2011-03-22 | Pelikan Technologies, Inc. | Method and apparatus for penetrating tissue |
US8784335B2 (en) | 2002-04-19 | 2014-07-22 | Sanofi-Aventis Deutschland Gmbh | Body fluid sampling device with a capacitive sensor |
US7291117B2 (en) | 2002-04-19 | 2007-11-06 | Pelikan Technologies, Inc. | Method and apparatus for penetrating tissue |
US7901362B2 (en) | 2002-04-19 | 2011-03-08 | Pelikan Technologies, Inc. | Method and apparatus for penetrating tissue |
US7371247B2 (en) | 2002-04-19 | 2008-05-13 | Pelikan Technologies, Inc | Method and apparatus for penetrating tissue |
US7547287B2 (en) | 2002-04-19 | 2009-06-16 | Pelikan Technologies, Inc. | Method and apparatus for penetrating tissue |
US7648468B2 (en) | 2002-04-19 | 2010-01-19 | Pelikon Technologies, Inc. | Method and apparatus for penetrating tissue |
US8221334B2 (en) | 2002-04-19 | 2012-07-17 | Sanofi-Aventis Deutschland Gmbh | Method and apparatus for penetrating tissue |
US8702624B2 (en) | 2006-09-29 | 2014-04-22 | Sanofi-Aventis Deutschland Gmbh | Analyte measurement device with a single shot actuator |
US7229458B2 (en) | 2002-04-19 | 2007-06-12 | Pelikan Technologies, Inc. | Method and apparatus for penetrating tissue |
US7297122B2 (en) | 2002-04-19 | 2007-11-20 | Pelikan Technologies, Inc. | Method and apparatus for penetrating tissue |
US8267870B2 (en) | 2002-04-19 | 2012-09-18 | Sanofi-Aventis Deutschland Gmbh | Method and apparatus for body fluid sampling with hybrid actuation |
US8579831B2 (en) | 2002-04-19 | 2013-11-12 | Sanofi-Aventis Deutschland Gmbh | Method and apparatus for penetrating tissue |
US7976476B2 (en) | 2002-04-19 | 2011-07-12 | Pelikan Technologies, Inc. | Device and method for variable speed lancet |
US7226461B2 (en) | 2002-04-19 | 2007-06-05 | Pelikan Technologies, Inc. | Method and apparatus for a multi-use body fluid sampling device with sterility barrier release |
US8372016B2 (en) | 2002-04-19 | 2013-02-12 | Sanofi-Aventis Deutschland Gmbh | Method and apparatus for body fluid sampling and analyte sensing |
US9314194B2 (en) | 2002-04-19 | 2016-04-19 | Sanofi-Aventis Deutschland Gmbh | Tissue penetration device |
US7175642B2 (en) | 2002-04-19 | 2007-02-13 | Pelikan Technologies, Inc. | Methods and apparatus for lancet actuation |
US8360992B2 (en) | 2002-04-19 | 2013-01-29 | Sanofi-Aventis Deutschland Gmbh | Method and apparatus for penetrating tissue |
US7232451B2 (en) | 2002-04-19 | 2007-06-19 | Pelikan Technologies, Inc. | Method and apparatus for penetrating tissue |
US7491178B2 (en) | 2002-04-19 | 2009-02-17 | Pelikan Technologies, Inc. | Method and apparatus for penetrating tissue |
US7717863B2 (en) | 2002-04-19 | 2010-05-18 | Pelikan Technologies, Inc. | Method and apparatus for penetrating tissue |
US7892183B2 (en) | 2002-04-19 | 2011-02-22 | Pelikan Technologies, Inc. | Method and apparatus for body fluid sampling and analyte sensing |
US9795334B2 (en) | 2002-04-19 | 2017-10-24 | Sanofi-Aventis Deutschland Gmbh | Method and apparatus for penetrating tissue |
US8574895B2 (en) | 2002-12-30 | 2013-11-05 | Sanofi-Aventis Deutschland Gmbh | Method and apparatus using optical techniques to measure analyte levels |
RU2004132832A (en) * | 2003-03-06 | 2005-08-27 | Лайфскен, Инк. (Us) | SYSTEM AND METHOD FOR PUNCTING DERMAL TISSUE |
EP1467206A1 (en) * | 2003-04-08 | 2004-10-13 | Roche Diagnostics GmbH | Biosensor system |
ES2347248T3 (en) | 2003-05-30 | 2010-10-27 | Pelikan Technologies Inc. | PROCEDURE AND APPLIANCE FOR FLUID INJECTION. |
US7850621B2 (en) | 2003-06-06 | 2010-12-14 | Pelikan Technologies, Inc. | Method and apparatus for body fluid sampling and analyte sensing |
WO2006001797A1 (en) | 2004-06-14 | 2006-01-05 | Pelikan Technologies, Inc. | Low pain penetrating |
US7452457B2 (en) | 2003-06-20 | 2008-11-18 | Roche Diagnostics Operations, Inc. | System and method for analyte measurement using dose sufficiency electrodes |
US7718439B2 (en) | 2003-06-20 | 2010-05-18 | Roche Diagnostics Operations, Inc. | System and method for coding information on a biosensor test strip |
US8206565B2 (en) | 2003-06-20 | 2012-06-26 | Roche Diagnostics Operation, Inc. | System and method for coding information on a biosensor test strip |
US20070264721A1 (en) * | 2003-10-17 | 2007-11-15 | Buck Harvey B | System and method for analyte measurement using a nonlinear sample response |
US8679853B2 (en) | 2003-06-20 | 2014-03-25 | Roche Diagnostics Operations, Inc. | Biosensor with laser-sealed capillary space and method of making |
US7645373B2 (en) | 2003-06-20 | 2010-01-12 | Roche Diagnostic Operations, Inc. | System and method for coding information on a biosensor test strip |
US8058077B2 (en) | 2003-06-20 | 2011-11-15 | Roche Diagnostics Operations, Inc. | Method for coding information on a biosensor test strip |
US7645421B2 (en) | 2003-06-20 | 2010-01-12 | Roche Diagnostics Operations, Inc. | System and method for coding information on a biosensor test strip |
US8148164B2 (en) | 2003-06-20 | 2012-04-03 | Roche Diagnostics Operations, Inc. | System and method for determining the concentration of an analyte in a sample fluid |
US8071030B2 (en) | 2003-06-20 | 2011-12-06 | Roche Diagnostics Operations, Inc. | Test strip with flared sample receiving chamber |
CA2529378C (en) | 2003-06-20 | 2014-04-15 | F.Hoffmann-La Roche Ag | Method and reagent for producing narrow, homogenous reagent strips |
EP1671096A4 (en) | 2003-09-29 | 2009-09-16 | Pelikan Technologies Inc | Method and apparatus for an improved sample capture device |
WO2005037095A1 (en) | 2003-10-14 | 2005-04-28 | Pelikan Technologies, Inc. | Method and apparatus for a variable user interface |
US7822454B1 (en) | 2005-01-03 | 2010-10-26 | Pelikan Technologies, Inc. | Fluid sampling device with improved analyte detecting member configuration |
US8668656B2 (en) | 2003-12-31 | 2014-03-11 | Sanofi-Aventis Deutschland Gmbh | Method and apparatus for improving fluidic flow and sample capture |
US7534212B2 (en) * | 2004-03-08 | 2009-05-19 | Nellcor Puritan Bennett Llc | Pulse oximeter with alternate heart-rate determination |
KR100613612B1 (en) * | 2004-04-27 | 2006-08-18 | 삼성전자주식회사 | Apparatus and method of detecting bio bonding using circuit of inductor and capacitor |
EP1751546A2 (en) | 2004-05-20 | 2007-02-14 | Albatros Technologies GmbH & Co. KG | Printable hydrogel for biosensors |
US9775553B2 (en) | 2004-06-03 | 2017-10-03 | Sanofi-Aventis Deutschland Gmbh | Method and apparatus for a fluid sampling device |
WO2005120365A1 (en) | 2004-06-03 | 2005-12-22 | Pelikan Technologies, Inc. | Method and apparatus for a fluid sampling device |
US7569126B2 (en) | 2004-06-18 | 2009-08-04 | Roche Diagnostics Operations, Inc. | System and method for quality assurance of a biosensor test strip |
US7604985B2 (en) | 2004-11-10 | 2009-10-20 | Becton, Dickinson And Company | System and method for determining fill volume in a container |
US8652831B2 (en) | 2004-12-30 | 2014-02-18 | Sanofi-Aventis Deutschland Gmbh | Method and apparatus for analyte measurement test time |
US7259705B2 (en) * | 2005-02-02 | 2007-08-21 | Ps Audio | Tracking supply AC regeneration system and method |
US7547382B2 (en) | 2005-04-15 | 2009-06-16 | Agamatrix, Inc. | Determination of partial fill in electrochemical strips |
EP1937832A4 (en) * | 2005-09-13 | 2008-09-10 | Home Diagnostics Inc | Method of manufacturing a diagnostic test strip |
AU2006297572B2 (en) * | 2005-09-30 | 2012-11-15 | Ascensia Diabetes Care Holdings Ag | Gated Voltammetry |
US7749371B2 (en) * | 2005-09-30 | 2010-07-06 | Lifescan, Inc. | Method and apparatus for rapid electrochemical analysis |
US7468125B2 (en) * | 2005-10-17 | 2008-12-23 | Lifescan, Inc. | System and method of processing a current sample for calculating a glucose concentration |
US8066866B2 (en) * | 2005-10-17 | 2011-11-29 | Lifescan, Inc. | Methods for measuring physiological fluids |
US8529751B2 (en) | 2006-03-31 | 2013-09-10 | Lifescan, Inc. | Systems and methods for discriminating control solution from a physiological sample |
US20070235346A1 (en) * | 2006-04-11 | 2007-10-11 | Popovich Natasha D | System and methods for providing corrected analyte concentration measurements |
US7909983B2 (en) * | 2006-05-04 | 2011-03-22 | Nipro Diagnostics, Inc. | System and methods for automatically recognizing a control solution |
EP2074421B1 (en) * | 2006-10-12 | 2014-12-17 | Koninklijke Philips N.V. | Fast biosensor with reagent layer |
WO2008072183A1 (en) | 2006-12-15 | 2008-06-19 | Koninklijke Philips Electronics N.V. | Sensor device comprising means for determining the sample covered area of the sensitive surface |
JP4842175B2 (en) * | 2007-03-07 | 2011-12-21 | 東京エレクトロン株式会社 | Temperature measuring apparatus and temperature measuring method |
EP2147317B1 (en) * | 2007-04-18 | 2017-08-02 | Becton, Dickinson and Company | Method and apparatus for determining dispense volume |
WO2009041782A2 (en) * | 2007-09-27 | 2009-04-02 | Philosys Co., Ltd. | Method for correcting erroneous results of measurement in biosensors and apparatus using the same |
US8778168B2 (en) | 2007-09-28 | 2014-07-15 | Lifescan, Inc. | Systems and methods of discriminating control solution from a physiological sample |
US8603768B2 (en) * | 2008-01-17 | 2013-12-10 | Lifescan, Inc. | System and method for measuring an analyte in a sample |
US8097146B2 (en) | 2008-03-27 | 2012-01-17 | Sensor Electronics Corporation | Device and method for monitoring an electrochemical gas sensor |
WO2009126900A1 (en) | 2008-04-11 | 2009-10-15 | Pelikan Technologies, Inc. | Method and apparatus for analyte detecting device |
AU2012201912B2 (en) * | 2008-06-09 | 2013-06-20 | Lifescan, Inc. | System and method for measuring an analyte in a sample |
US8551320B2 (en) | 2008-06-09 | 2013-10-08 | Lifescan, Inc. | System and method for measuring an analyte in a sample |
US9375169B2 (en) | 2009-01-30 | 2016-06-28 | Sanofi-Aventis Deutschland Gmbh | Cam drive for managing disposable penetrating member actions with a single motor and motor and control system |
TWI388823B (en) * | 2009-04-09 | 2013-03-11 | Bionime Corp | A method for estimating the distribution of a sample |
CN106053585A (en) * | 2009-05-12 | 2016-10-26 | 华广生技股份有限公司 | Detection method for judging sample distribution status |
US8188754B2 (en) | 2009-07-15 | 2012-05-29 | Maxim Integrated Products, Inc. | Method and apparatus for sensing capacitance value and converting it into digital format |
IL209760A (en) * | 2009-12-11 | 2015-05-31 | Lifescan Scotland Ltd | Fill sufficiency method and system |
US8101065B2 (en) * | 2009-12-30 | 2012-01-24 | Lifescan, Inc. | Systems, devices, and methods for improving accuracy of biosensors using fill time |
US8877034B2 (en) * | 2009-12-30 | 2014-11-04 | Lifescan, Inc. | Systems, devices, and methods for measuring whole blood hematocrit based on initial fill velocity |
US20110208435A1 (en) * | 2010-02-25 | 2011-08-25 | Lifescan Scotland Ltd. | Capacitance detection in electrochemical assays |
US8742773B2 (en) | 2010-02-25 | 2014-06-03 | Lifescan Scotland Limited | Capacitance detection in electrochemical assay with improved response |
US8773106B2 (en) | 2010-02-25 | 2014-07-08 | Lifescan Scotland Limited | Capacitance detection in electrochemical assay with improved sampling time offset |
WO2011104517A2 (en) * | 2010-02-25 | 2011-09-01 | Lifescan Scotland Limited | Capacitance detection in electrochemical assay |
US8965476B2 (en) | 2010-04-16 | 2015-02-24 | Sanofi-Aventis Deutschland Gmbh | Tissue penetration device |
DE102010030869A1 (en) * | 2010-07-02 | 2012-01-05 | Ifm Electronic Gmbh | Method for evaluating measurement signal of capacitive limit switch, involves modifying deviations of measurement values, determining maximum value of deviations, and evaluating measurement signal on basis of maximum value |
JP5701528B2 (en) * | 2010-07-16 | 2015-04-15 | オリンパス株式会社 | Biological state quantity measuring device |
KR20130092571A (en) | 2010-08-02 | 2013-08-20 | 시락 게엠베하 인터내셔날 | Systems and methods for improved accuracy for temperature correction of glucose results for control solution |
US8617370B2 (en) * | 2010-09-30 | 2013-12-31 | Cilag Gmbh International | Systems and methods of discriminating between a control sample and a test fluid using capacitance |
US8932445B2 (en) | 2010-09-30 | 2015-01-13 | Cilag Gmbh International | Systems and methods for improved stability of electrochemical sensors |
KR101831365B1 (en) | 2010-11-01 | 2018-02-22 | 카프센제 에이치비 | Method of measuring a capacitance |
TWI445956B (en) * | 2012-01-16 | 2014-07-21 | Univ Nat Chi Nan | Measuring device |
US9128038B2 (en) | 2012-06-21 | 2015-09-08 | Lifescan Scotland Limited | Analytical test strip with capillary sample-receiving chambers separated by a physical barrier island |
US8877023B2 (en) | 2012-06-21 | 2014-11-04 | Lifescan Scotland Limited | Electrochemical-based analytical test strip with intersecting sample-receiving chambers |
US20140134655A1 (en) | 2012-11-09 | 2014-05-15 | Cilag Gmbh International | System and method for detection of sample volume during initial sample fill of a biosensor to determine glucose concentration in fluid samples or sample fill error |
US20140275903A1 (en) | 2013-03-14 | 2014-09-18 | Lifescan Scotland Limited | System and method for quick-access physiological measurement history |
US9903879B2 (en) | 2013-03-14 | 2018-02-27 | Lifescan Scotland Limited | Method to allow for linking temporal record with physiological measurement in buttonless physiological meters |
WO2014140178A1 (en) * | 2013-03-15 | 2014-09-18 | Roche Diagnostics Gmbh | Methods of electrochemically measuring an analyte with a test sequence having a pulsed dc block as well as devices, apparatuses and systems incorporating the same |
US10168313B2 (en) * | 2013-03-15 | 2019-01-01 | Agamatrix, Inc. | Analyte detection meter and associated method of use |
US20140299483A1 (en) * | 2013-04-05 | 2014-10-09 | Lifescan Scotland Limited | Analyte meter and method of operation |
US9395319B2 (en) * | 2013-05-02 | 2016-07-19 | Lifescan Scotland Limited | Analytical test meter |
US9702846B2 (en) | 2013-11-08 | 2017-07-11 | Taiwan Semiconductor Manufacturing Company, Ltd. | Biosensor device and related method |
US9291593B2 (en) | 2013-11-22 | 2016-03-22 | Cilag Gmbh International | Dual-chamber analytical test strip |
US20150330937A1 (en) * | 2014-05-16 | 2015-11-19 | Lifescan Scotland Limited | Hand-held test meter with body portion proximity sensor module |
JP6416600B2 (en) | 2014-11-28 | 2018-10-31 | 株式会社アドバンテスト | measuring device |
JP6416601B2 (en) | 2014-11-28 | 2018-10-31 | 株式会社アドバンテスト | measuring device |
CN107110814A (en) * | 2014-12-19 | 2017-08-29 | 豪夫迈·罗氏有限公司 | Testing element for electrochemically detecting at least one analyte |
CN105403691B (en) * | 2016-01-01 | 2017-08-18 | 赛奥生物科技(青岛)有限公司 | A kind of Blood Kit analysis system |
CA3012319A1 (en) | 2016-01-27 | 2017-08-03 | Life Detection Technologies, Inc. | Systems and methods for detecting physical changes without physical contact |
US10631752B2 (en) | 2016-01-27 | 2020-04-28 | Life Detection Technologies, Inc. | Systems and methods for detecting physical changes without physical contact |
TR201612821A2 (en) * | 2016-09-08 | 2016-11-21 | Ebru Duendar Yenilmez | NANOPOLYMER COATED ELECTRODE CONTAINING BIOSENSOR AND ELECTRODE COATING METHOD FOR FETAL RHD DETERMINATION FOR NONINVASIVE PRENATAL DIAGNOSIS |
JP6681547B2 (en) * | 2016-12-21 | 2020-04-15 | パナソニックIpマネジメント株式会社 | Concentration sensor |
WO2019147216A1 (en) * | 2018-01-23 | 2019-08-01 | Hewlett-Packard Development Company, L.P. | Direct current drive circuitry devices |
CN109357727B (en) * | 2018-10-31 | 2020-08-14 | 四川泛华航空仪表电器有限公司 | Capacitance type oil mass measuring system with dielectric constant compensation |
JP2022081299A (en) * | 2020-11-19 | 2022-05-31 | 日置電機株式会社 | measuring device |
Family Cites Families (31)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4117364A (en) * | 1976-05-14 | 1978-09-26 | Massachusetts Institute Of Technology | Voltage waveform synthesizer and a system that includes the same |
US4316381A (en) * | 1980-07-14 | 1982-02-23 | Hewlett-Packard Company | Modulated detector |
US4733222A (en) * | 1983-12-27 | 1988-03-22 | Integrated Touch Arrays, Inc. | Capacitance-variation-sensitive touch sensing array system |
JPH0690101B2 (en) * | 1986-03-28 | 1994-11-14 | 株式会社長野計器製作所 | Gas pressure gauge |
US5200051A (en) * | 1988-11-14 | 1993-04-06 | I-Stat Corporation | Wholly microfabricated biosensors and process for the manufacture and use thereof |
FI82144C (en) * | 1989-03-22 | 1991-01-10 | Wallac Oy | FOERFARANDE FOER SAMTIDIG BESTAEMNING AV FLERA LIGANDER. |
DE4001814A1 (en) * | 1990-01-23 | 1991-07-25 | Vdo Schindling | EVALUATION FOR A CAPACITIVE SENSOR |
US5182760A (en) * | 1990-12-26 | 1993-01-26 | Atlantic Richfield Company | Demodulation system for phase shift keyed modulated data transmission |
US5245869A (en) * | 1991-10-01 | 1993-09-21 | Boston Advanced Technologies, Inc. | High accuracy mass sensor for monitoring fluid quantity in storage tanks |
US5615672A (en) * | 1993-01-28 | 1997-04-01 | Optiscan, Inc. | Self-emission noninvasive infrared spectrophotometer with body temperature compensation |
US5494831A (en) * | 1993-08-30 | 1996-02-27 | Hughes Aircraft Company | Electrochemical immunosensor system and methods |
US5801307A (en) * | 1995-07-12 | 1998-09-01 | Netzer; Yishay | Differential windshield capacitive moisture sensors |
AUPN661995A0 (en) | 1995-11-16 | 1995-12-07 | Memtec America Corporation | Electrochemical cell 2 |
GB9607898D0 (en) | 1996-04-17 | 1996-06-19 | British Nuclear Fuels Plc | Improvements in and relating to sensors |
WO1998035225A1 (en) | 1997-02-06 | 1998-08-13 | E. Heller & Company | Small volume in vitro analyte sensor |
US5981268A (en) * | 1997-05-30 | 1999-11-09 | Board Of Trustees, Leland Stanford, Jr. University | Hybrid biosensors |
US6248080B1 (en) * | 1997-09-03 | 2001-06-19 | Medtronic, Inc. | Intracranial monitoring and therapy delivery control device, system and method |
EP1042667B1 (en) | 1997-12-22 | 2009-06-17 | Roche Diagnostics Operations, Inc. | Meter |
US6134461A (en) | 1998-03-04 | 2000-10-17 | E. Heller & Company | Electrochemical analyte |
US6175752B1 (en) | 1998-04-30 | 2001-01-16 | Therasense, Inc. | Analyte monitoring device and methods of use |
US6338790B1 (en) | 1998-10-08 | 2002-01-15 | Therasense, Inc. | Small volume in vitro analyte sensor with diffusible or non-leachable redox mediator |
US7577469B1 (en) | 1999-03-11 | 2009-08-18 | Jack L. Aronowitz | Noninvasive transdermal systems for detecting an analyte in a biological fluid and methods |
US6275047B1 (en) * | 1999-03-12 | 2001-08-14 | Fluke Corporation | Capacitance measurement |
US6193873B1 (en) | 1999-06-15 | 2001-02-27 | Lifescan, Inc. | Sample detection to initiate timing of an electrochemical assay |
US6616819B1 (en) * | 1999-11-04 | 2003-09-09 | Therasense, Inc. | Small volume in vitro analyte sensor and methods |
AU5096801A (en) | 2000-03-31 | 2001-10-15 | Lifescan Inc | Electrically-conductive patterns for monitoring the filling of medical devices |
US6340421B1 (en) | 2000-05-16 | 2002-01-22 | Minimed Inc. | Microelectrogravimetric method for plating a biosensor |
US7030099B2 (en) * | 2000-07-21 | 2006-04-18 | Research Corporation Technologies, Inc. | Tumor specific promoters of the midkine gene that allow for selective expression in P53-inactivated cells |
US6797150B2 (en) * | 2001-10-10 | 2004-09-28 | Lifescan, Inc. | Determination of sample volume adequacy in biosensor devices |
US6872298B2 (en) * | 2001-11-20 | 2005-03-29 | Lifescan, Inc. | Determination of sample volume adequacy in biosensor devices |
US7129714B2 (en) * | 2002-07-02 | 2006-10-31 | Baxter Larry K | Capacitive measurement system |
-
2001
- 2001-12-12 US US10/020,169 patent/US6856125B2/en not_active Expired - Lifetime
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2002
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ES2250593T3 (en) | 2006-04-16 |
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