CA2481426A1 - Disposable sub-microliter volume biosensor with enhanced sample inlet - Google Patents
Disposable sub-microliter volume biosensor with enhanced sample inlet Download PDFInfo
- Publication number
- CA2481426A1 CA2481426A1 CA002481426A CA2481426A CA2481426A1 CA 2481426 A1 CA2481426 A1 CA 2481426A1 CA 002481426 A CA002481426 A CA 002481426A CA 2481426 A CA2481426 A CA 2481426A CA 2481426 A1 CA2481426 A1 CA 2481426A1
- Authority
- CA
- Canada
- Prior art keywords
- electrode
- strip
- layer
- base
- channel
- 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.)
- Granted
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12Q—MEASURING OR TESTING PROCESSES INVOLVING ENZYMES, NUCLEIC ACIDS OR MICROORGANISMS; COMPOSITIONS OR TEST PAPERS THEREFOR; PROCESSES OF PREPARING SUCH COMPOSITIONS; CONDITION-RESPONSIVE CONTROL IN MICROBIOLOGICAL OR ENZYMOLOGICAL PROCESSES
- C12Q1/00—Measuring or testing processes involving enzymes, nucleic acids or microorganisms; Compositions therefor; Processes of preparing such compositions
- C12Q1/001—Enzyme electrodes
-
- 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
- G01N27/3272—Test elements therefor, i.e. disposable laminated substrates with electrodes, reagent and channels
Abstract
A disposable electrode strip for testing a fluid sample including a laminate d strip with a first and second end, a vent, an open path for receiving a flui d sample of less than one microliter beginning from the first end and connecti ng to the vent, a working electrode, a reference electrode and a pseudo-working electrode embedded in the laminated strip within the open path and proximate to the first end, a reagent matrix coextensive within the open path and covering the three electrodes, and conductive contacts located at the second end of the laminated strip.
Claims (34)
1. A disposable electrode strip for testing a fluid sample comprising:
a laminated strip having a first strip end, a second strip end and a vent opening spaced from said first strip end, said laminated strip comprising a base layer having a conductive layer disposed thereon, said conductive layer having scribe lines delineated thereon and forming at least two electrode paths, a channel forming layer carried on said base layer, and a cover having an inlet notch at said first strip end;
an enclosed channel between said first strip end and said vent opening, said enclosed channel sized to hold a volume of said fluid sample less than one microliter, said enclosed channel exposing a portion of each of said at least two electrode paths;
a reagent matrix containing at least an enzyme, a stabilizer, wherein said stabilizer is a polyalkylene glycol, and a redox mediator disposed on said base layer in said enclosed channel;
conductive contacts at said second strip end and insulated from said enclosed channel.
a laminated strip having a first strip end, a second strip end and a vent opening spaced from said first strip end, said laminated strip comprising a base layer having a conductive layer disposed thereon, said conductive layer having scribe lines delineated thereon and forming at least two electrode paths, a channel forming layer carried on said base layer, and a cover having an inlet notch at said first strip end;
an enclosed channel between said first strip end and said vent opening, said enclosed channel sized to hold a volume of said fluid sample less than one microliter, said enclosed channel exposing a portion of each of said at least two electrode paths;
a reagent matrix containing at least an enzyme, a stabilizer, wherein said stabilizer is a polyalkylene glycol, and a redox mediator disposed on said base layer in said enclosed channel;
conductive contacts at said second strip end and insulated from said enclosed channel.
2. The electrode strip of Claim 1 wherein said enzyme is selected from the group consisting of glucose oxidase, lactate oxidase, cholesterol oxidase, and creatinine amidohydrolase.
3. The electrode strip of Claim 1 wherein said redox mediator is potassium ferricyanide or other inorganic or organic redox mediators.
4. The electrode strip of Claim 1 wherein said conductive layer is gold or a gold and tin oxide.
5. The electrode strip of Claim 1 wherein said base layer, said channel forming layer and said cover are made of a plastic dielectric material.
6. The electrode strip of Claim 1 wherein said enclosed channel has a volume of about 0.2 microliters.
7. The electrode strip of Claim 1 wherein said cover has a hydrophilic coating on at least one side.
8. The electrode strip of Claim 1 wherein said reagent matrix further contains at least one of a binder, a surfactant, and a buffer.
9. The electrode strip of Claim 8 wherein said stabilizer is a polyalkylene glycol, said binder is a cellulose material, and said surfactant is a polyoxyethylene ether.
10. The electrode strip of Claim 9 wherein said stabilizer is polyethylene glycol, said binder is methyl cellulose, said surfactant is t-octylphenoxypolyethoxyethanol, and said buffer is a citrate buffer.
11. The electrode strip of Claim 10 wherein said reagent matrix is made from a mixture having starting components comprising about 1wt% to about 6.5wt%
of said redox mediator, about 2.5wt% of said stabilizer, about 1wt% of said binder, about 0.03wt% of said surfactant, and about 1wt% of said enzyme in said citrate buffer.
of said redox mediator, about 2.5wt% of said stabilizer, about 1wt% of said binder, about 0.03wt% of said surfactant, and about 1wt% of said enzyme in said citrate buffer.
12. The electrode strip of Claim 11 wherein said citrate buffer is about 0.05M.
13. The electrode strip of Claim 1 wherein said channel forming layer has a thickness sufficient to optimize the flow of said fluid sample along said open path.
14. The electrode strip of Claim 11 wherein said potassium ferricyanide is 6.5wt%.
15. The electrode strip of Claim 11 wherein said enzyme is glucose oxidase.
16. The electrode strip of Claim 1 wherein said conductive layer has a third electrode path thereon and wherein said enclosed channel contains a working electrode, a pseudo-working electrode and a reference electrode.
17. The electrode strip of Claim 16 wherein said pseudo-working electrode is a counter electrode.
18. The electrode strip of Claim 16 wherein said pseudo-working electrode is a triggering electrode.
19. The electrode strip of Claim 16 wherein said pseudo-working electrode and said reference electrode pair are a resistance-measuring electrode pair.
20. A disposable electrode strip for detecting or measuring the concentration of an analyte in a fluid sample, said electrode strip comprising:
an insulating base strip having a first base end and a second base end;
a conductive layer disposed on one side of said base strip, said conductive layer having a pattern scribed into said conductive layer, said pattern delineating three electrically-distinct conductive paths insulated from each other;
a middle insulator sized smaller than said insulating base strip and overlaying a substantial portion of said conductive layer, said middle insulator having a cutout portion spaced from said first base end, said cutout portion exposing a limited area of said three conductive paths;
an electrode material comprising an enzyme, a redox mediator, a stabilizer wherein said stabilizer is a polyalkylene glycol, a binder, a surfactant, and a buffer, said electrode material being disposed in said cutout portion; and a covering insulator sized to fit over and be coextensive with said middle insulator creating a sample fluid channel, said covering insulator having an inlet notch at a first covering insulator end, said first covering insulator end being coextensive with said first base end, and a covering insulator aperture spaced from said first base end and configured to expose at least a small portion of said cutout portion of said middle insulator.
an insulating base strip having a first base end and a second base end;
a conductive layer disposed on one side of said base strip, said conductive layer having a pattern scribed into said conductive layer, said pattern delineating three electrically-distinct conductive paths insulated from each other;
a middle insulator sized smaller than said insulating base strip and overlaying a substantial portion of said conductive layer, said middle insulator having a cutout portion spaced from said first base end, said cutout portion exposing a limited area of said three conductive paths;
an electrode material comprising an enzyme, a redox mediator, a stabilizer wherein said stabilizer is a polyalkylene glycol, a binder, a surfactant, and a buffer, said electrode material being disposed in said cutout portion; and a covering insulator sized to fit over and be coextensive with said middle insulator creating a sample fluid channel, said covering insulator having an inlet notch at a first covering insulator end, said first covering insulator end being coextensive with said first base end, and a covering insulator aperture spaced from said first base end and configured to expose at least a small portion of said cutout portion of said middle insulator.
21. The strip of Claim 20 wherein said sample fluid channel has a volume of about 0.22 microliters.
22. The strip of Claim 20 wherein said redox mediator is at least one metal complex selected from the group consisting of ferrocene, ferrocene derivatives and potassium ferricyanide, said stabilizer is a polyalkylene glycol, said binder is a cellulose material, said surfactant is a polyoxyethylene ether, and said buffer has a pH of about 5 to about 6.
23. The strip of Claim 22 wherein said mediator is potassium ferricyanide, said stabilizer is polyethylene glycol, said binder is methyl cellulose, said surfactant is t-octylphenoxypolyethoxyethanol, and said buffer is a citrate buffer.
24. The strip of Claim 23 wherein said electrode material is made of a mixture having starting components comprising about 6.5wt% of said potassium ferricyanide, about 2.5wt% of said polyethylene glycol, about 1wt% of said methyl cellulose, and about 0.03wt% of said t-octylphenoxypolyethoxyethanol, and about 1wt% of said enzyme in said citrate buffer.
25. The strip of Claim 34 wherein said enzyme is glucose oxidase.
26. The electrode strip of Claim 20 wherein said sample fluid channel contains a working electrode, a pseudo-working electrode and a reference electrode.
27. The electrode strip of Claim 26 wherein said pseudo-working electrode is a counter electrode.
28. The electrode strip of Claim 26 wherein said pseudo-working electrode is a triggering electrode.
29. The electrode strip of Claim 26 wherein said pseudo-working electrode and said reference electrode pair are a resistance-measuring electrode pair.
30. A method of making a disposable biosensor comprising:
scribing a plurality of scribe lines into a conductive coating disposed on one side of an elongated base layer having an electrode end and an electrical contact end forming at least two elongated electrical conduits along the length of said base layer wherein said plurality of scribe lines delineates a first conduit of said at least two electrical conduits having an L-shape and a second conduit adjacent said first conduit wherein said L-shaped end of said first conduit and the end of said second conduit are in axial alignment with the central axis of the length of said base layer and are located near said electrode end;
disposing a channel forming layer over said conductive coating of said base layer, said channel forming layer having a U-shaped end portion defining a central elongated channel sized to expose a portion said L-shaped end of said first conduit and a portion of said second conduit, said channel forming layer being shorter in length than said base layer such that a portion of each of said at least two elongated conduits is exposed at said electrical contact end;
adding a reagent mixture to said central channel covering said exposed portions of said first and second conduits, said reagent mixture having an enzyme capable of catalyzing a reaction involving a substrate for the enzyme;
drying said reagent mixture forming a reagent matrix; and disposing a top layer over said channel forming layer, said top layer having a vent opening spaced from said electrode end and a notch at said electrode end, said top layer forming an inlet and a capillary space with said U-shaped end portion wherein said vent exposes a portion of said central channel at the end of said capillary space opposite said inlet and said notch exposes a portion of said central channel at said inlet.
scribing a plurality of scribe lines into a conductive coating disposed on one side of an elongated base layer having an electrode end and an electrical contact end forming at least two elongated electrical conduits along the length of said base layer wherein said plurality of scribe lines delineates a first conduit of said at least two electrical conduits having an L-shape and a second conduit adjacent said first conduit wherein said L-shaped end of said first conduit and the end of said second conduit are in axial alignment with the central axis of the length of said base layer and are located near said electrode end;
disposing a channel forming layer over said conductive coating of said base layer, said channel forming layer having a U-shaped end portion defining a central elongated channel sized to expose a portion said L-shaped end of said first conduit and a portion of said second conduit, said channel forming layer being shorter in length than said base layer such that a portion of each of said at least two elongated conduits is exposed at said electrical contact end;
adding a reagent mixture to said central channel covering said exposed portions of said first and second conduits, said reagent mixture having an enzyme capable of catalyzing a reaction involving a substrate for the enzyme;
drying said reagent mixture forming a reagent matrix; and disposing a top layer over said channel forming layer, said top layer having a vent opening spaced from said electrode end and a notch at said electrode end, said top layer forming an inlet and a capillary space with said U-shaped end portion wherein said vent exposes a portion of said central channel at the end of said capillary space opposite said inlet and said notch exposes a portion of said central channel at said inlet.
31. The method of Claim 30 further comprising creating a notch in said top layer at said electrode end wherein said notch is located at said inlet.
32. The method of Claim 30 further comprising mixing a redox mediator, a stabilizer, a binder, a surfactant and a buffer forming said reagent mixture.
33. A method of making multiple, disposable sensors wherein each sensor has at least a working electrode, a reference electrode and a reagent matrix, wherein said reagent matrix contains an enzyme capable of catalyzing a reaction involving a substrate for the enzyme, said working electrode and said reference electrode being disposed in a fluid sample channel for measuring a fluid sample, said method comprising:
obtaining a base strip of an insulating material having a layer of conductive material disposed thereon, said base strip having a first edge and a second edge;
scribing in said conductive material a plurality of lines in a repetitive pattern wherein said plurality of lines contain a repetitive pattern capable of forming at least two conductive paths in each of said repetitive pattern, said plurality of lines delineates a first conduit of said at least two conductive paths having an L-shape and a second conduit adjacent said first conduit wherein said L-shaped end of said first conduit and the end of said second conduit are in axial alignment with the central axis of the length of said base layer and are located near said electrode end;
disposing a middle layer of insulating material over said base strip, said middle layer having a repetitive pattern of an elongated cutout wherein each cutout of each of said repetitive pattern exposes an electrode portion of each of said at least two conductive paths of each repetitive pattern wherein said repetitive pattern of said elongated cutout are spaced from said first edge of said base strip, and wherein said middle layer is sized to expose a contact portion of each of said at least two conductive paths of each repetitive pattern for a distance from said second edge of said base strip;
disposing a reagent material into each elongated cutout of said repetitive pattern wherein said reagent material contains a polyalkylene glycol stabilizer;
drying said reagent material at a temperature and for a length of time sufficient to solidify said reagent material in each of said elongated cutout;
disposing a top layer of insulating material over and coextensive with said middle layer, said top layer having a plurality of vent openings and notch forming holes in a repetitive pattern wherein each of said vent openings exposes a portion of a corresponding repetitive pattern of said elongated cutout of said middle layer furthest from said first edge of said base strip and wherein each of said notch forming holes exposes a portion of said corresponding repetitive pattern of said elongated cutout portion closest to said first edge of said base strip, said base strip, said middle layer and said top layer forming a laminated strip;
cutting along and parallel to said first edge of said laminated strip a predetermined distance creating a sample inlet port in each of said elongated cutout and an inlet notch in said top layer for each of said repetitive pattern;
cutting along and parallel to said second edge of said laminated strip a predetermined distance creating two separate contacts for each of said repetitive pattern; and separating each of said repetitive pattern at predetermined intervals along said laminated strip.
obtaining a base strip of an insulating material having a layer of conductive material disposed thereon, said base strip having a first edge and a second edge;
scribing in said conductive material a plurality of lines in a repetitive pattern wherein said plurality of lines contain a repetitive pattern capable of forming at least two conductive paths in each of said repetitive pattern, said plurality of lines delineates a first conduit of said at least two conductive paths having an L-shape and a second conduit adjacent said first conduit wherein said L-shaped end of said first conduit and the end of said second conduit are in axial alignment with the central axis of the length of said base layer and are located near said electrode end;
disposing a middle layer of insulating material over said base strip, said middle layer having a repetitive pattern of an elongated cutout wherein each cutout of each of said repetitive pattern exposes an electrode portion of each of said at least two conductive paths of each repetitive pattern wherein said repetitive pattern of said elongated cutout are spaced from said first edge of said base strip, and wherein said middle layer is sized to expose a contact portion of each of said at least two conductive paths of each repetitive pattern for a distance from said second edge of said base strip;
disposing a reagent material into each elongated cutout of said repetitive pattern wherein said reagent material contains a polyalkylene glycol stabilizer;
drying said reagent material at a temperature and for a length of time sufficient to solidify said reagent material in each of said elongated cutout;
disposing a top layer of insulating material over and coextensive with said middle layer, said top layer having a plurality of vent openings and notch forming holes in a repetitive pattern wherein each of said vent openings exposes a portion of a corresponding repetitive pattern of said elongated cutout of said middle layer furthest from said first edge of said base strip and wherein each of said notch forming holes exposes a portion of said corresponding repetitive pattern of said elongated cutout portion closest to said first edge of said base strip, said base strip, said middle layer and said top layer forming a laminated strip;
cutting along and parallel to said first edge of said laminated strip a predetermined distance creating a sample inlet port in each of said elongated cutout and an inlet notch in said top layer for each of said repetitive pattern;
cutting along and parallel to said second edge of said laminated strip a predetermined distance creating two separate contacts for each of said repetitive pattern; and separating each of said repetitive pattern at predetermined intervals along said laminated strip.
34. The method of Claim 33 further comprising mixing a redox mediator, said stabilizer, a binder, a surfactant, a buffer, and said enzyme forming said reagent material.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US10/126,818 | 2002-04-19 | ||
| US10/126,818 US6942770B2 (en) | 2002-04-19 | 2002-04-19 | Disposable sub-microliter volume biosensor with enhanced sample inlet |
| PCT/US2003/011647 WO2003089660A1 (en) | 2002-04-19 | 2003-04-16 | Disposable sub-microliter volume sensor with enhanced sample inlet |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2481426A1 true CA2481426A1 (en) | 2003-10-30 |
| CA2481426C CA2481426C (en) | 2012-02-14 |
Family
ID=29215113
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA2481426A Expired - Lifetime CA2481426C (en) | 2002-04-19 | 2003-04-16 | Disposable sub-microliter volume biosensor with enhanced sample inlet |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US6942770B2 (en) |
| EP (1) | EP1497446B1 (en) |
| JP (1) | JP4620357B2 (en) |
| AU (1) | AU2003221950A1 (en) |
| CA (1) | CA2481426C (en) |
| DE (1) | DE60319516T2 (en) |
| ES (1) | ES2301788T3 (en) |
| WO (1) | WO2003089660A1 (en) |
Families Citing this family (107)
| 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 |
| 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 |
| 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 |
| CA2435439A1 (en) * | 2001-01-22 | 2002-07-25 | F. Hoffmann-La Roche Ag | Lancet device having capillary action |
| US7344507B2 (en) | 2002-04-19 | 2008-03-18 | Pelikan Technologies, Inc. | Method and apparatus for lancet actuation |
| US7033371B2 (en) | 2001-06-12 | 2006-04-25 | Pelikan Technologies, Inc. | Electric lancet actuator |
| US8337419B2 (en) | 2002-04-19 | 2012-12-25 | 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 |
| US7749174B2 (en) | 2001-06-12 | 2010-07-06 | Pelikan Technologies, Inc. | Method and apparatus for lancet launching device intergrated onto a blood-sampling cartridge |
| US7981056B2 (en) | 2002-04-19 | 2011-07-19 | Pelikan Technologies, Inc. | Methods and apparatus for lancet actuation |
| US7041068B2 (en) | 2001-06-12 | 2006-05-09 | Pelikan Technologies, Inc. | Sampling module device and method |
| US9427532B2 (en) | 2001-06-12 | 2016-08-30 | Sanofi-Aventis Deutschland Gmbh | Tissue penetration device |
| US7699791B2 (en) | 2001-06-12 | 2010-04-20 | Pelikan Technologies, Inc. | Method and apparatus for improving success rate of blood yield from a fingerstick |
| US9795747B2 (en) | 2010-06-02 | 2017-10-24 | Sanofi-Aventis Deutschland Gmbh | Methods and apparatus for lancet actuation |
| CA2448902C (en) | 2001-06-12 | 2010-09-07 | Pelikan Technologies, Inc. | Self optimizing lancing device with adaptation means to temporal variations in cutaneous properties |
| DE60234597D1 (en) | 2001-06-12 | 2010-01-14 | Pelikan Technologies Inc | DEVICE AND METHOD FOR REMOVING BLOOD SAMPLES |
| US7879211B2 (en) * | 2001-07-13 | 2011-02-01 | Arkray, Inc. | Analyzing instrument, lancet-integrated attachment for concentration measuring device provided with analyzing instrument, and body fluid sampling tool |
| US9314194B2 (en) | 2002-04-19 | 2016-04-19 | Sanofi-Aventis Deutschland Gmbh | Tissue penetration device |
| 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 |
| US8267870B2 (en) | 2002-04-19 | 2012-09-18 | Sanofi-Aventis Deutschland Gmbh | Method and apparatus for body fluid sampling with hybrid actuation |
| US8221334B2 (en) | 2002-04-19 | 2012-07-17 | Sanofi-Aventis Deutschland Gmbh | Method and apparatus for penetrating tissue |
| US7297122B2 (en) | 2002-04-19 | 2007-11-20 | 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 |
| US7892183B2 (en) | 2002-04-19 | 2011-02-22 | Pelikan Technologies, Inc. | Method and apparatus for body fluid sampling and analyte sensing |
| US7229458B2 (en) | 2002-04-19 | 2007-06-12 | Pelikan Technologies, Inc. | Method and apparatus for penetrating tissue |
| US7232451B2 (en) | 2002-04-19 | 2007-06-19 | 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 |
| US7291117B2 (en) | 2002-04-19 | 2007-11-06 | Pelikan Technologies, Inc. | Method and apparatus for penetrating tissue |
| US7976476B2 (en) | 2002-04-19 | 2011-07-12 | Pelikan Technologies, Inc. | Device and method for variable speed lancet |
| US7331931B2 (en) | 2002-04-19 | 2008-02-19 | 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 |
| US8702624B2 (en) | 2006-09-29 | 2014-04-22 | Sanofi-Aventis Deutschland Gmbh | Analyte measurement device with a single shot actuator |
| US9795334B2 (en) | 2002-04-19 | 2017-10-24 | Sanofi-Aventis Deutschland Gmbh | Method and apparatus for penetrating tissue |
| US7547287B2 (en) | 2002-04-19 | 2009-06-16 | 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 |
| US8579831B2 (en) | 2002-04-19 | 2013-11-12 | Sanofi-Aventis Deutschland Gmbh | Method and apparatus for penetrating tissue |
| US7371247B2 (en) | 2002-04-19 | 2008-05-13 | 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 |
| US8784335B2 (en) | 2002-04-19 | 2014-07-22 | Sanofi-Aventis Deutschland Gmbh | Body fluid sampling device with a capacitive sensor |
| US9248267B2 (en) | 2002-04-19 | 2016-02-02 | Sanofi-Aventis Deustchland Gmbh | Tissue penetration device |
| US7717863B2 (en) | 2002-04-19 | 2010-05-18 | Pelikan Technologies, Inc. | Method and apparatus for penetrating tissue |
| AU2003284512A1 (en) * | 2002-12-02 | 2004-06-23 | Arkray, Inc. | Analysis instrument |
| US8574895B2 (en) | 2002-12-30 | 2013-11-05 | Sanofi-Aventis Deutschland Gmbh | Method and apparatus using optical techniques to measure analyte levels |
| WO2004107964A2 (en) | 2003-06-06 | 2004-12-16 | Pelikan Technologies, Inc. | Blood harvesting device with electronic control |
| WO2006001797A1 (en) | 2004-06-14 | 2006-01-05 | Pelikan Technologies, Inc. | Low pain penetrating |
| WO2005033659A2 (en) | 2003-09-29 | 2005-04-14 | Pelikan Technologies, Inc. | Method and apparatus for an improved sample capture device |
| US9351680B2 (en) | 2003-10-14 | 2016-05-31 | Sanofi-Aventis Deutschland Gmbh | Method and apparatus for a variable user interface |
| KR100579489B1 (en) * | 2003-12-11 | 2006-05-12 | 이진우 | Biomaterial measuring device and manufacturing method thereof |
| US7822454B1 (en) | 2005-01-03 | 2010-10-26 | Pelikan Technologies, Inc. | Fluid sampling device with improved analyte detecting member configuration |
| EP1706026B1 (en) | 2003-12-31 | 2017-03-01 | Sanofi-Aventis Deutschland GmbH | Method and apparatus for improving fluidic flow and sample capture |
| US7807043B2 (en) * | 2004-02-23 | 2010-10-05 | Oakville Hong Kong Company Limited | Microfluidic test device |
| US7413640B2 (en) * | 2004-05-11 | 2008-08-19 | Biomedix Taiwan | Foldable, electric-current conductivity biosensor |
| US8828203B2 (en) | 2004-05-20 | 2014-09-09 | Sanofi-Aventis Deutschland Gmbh | Printable hydrogels for biosensors |
| US9820684B2 (en) | 2004-06-03 | 2017-11-21 | Sanofi-Aventis Deutschland Gmbh | Method and apparatus for a fluid sampling device |
| US20060070878A1 (en) * | 2004-10-06 | 2006-04-06 | Shu-Mei Wu | Electrochemical biosensor strip |
| US7488298B2 (en) * | 2004-10-08 | 2009-02-10 | Roche Diagnostics Operations, Inc. | Integrated lancing test strip with capillary transfer sheet |
| US8652831B2 (en) | 2004-12-30 | 2014-02-18 | Sanofi-Aventis Deutschland Gmbh | Method and apparatus for analyte measurement test time |
| US20060180467A1 (en) * | 2005-02-14 | 2006-08-17 | Taidoc Technology Corporation | Electrochemical biosensor strip |
| CA2789262C (en) | 2005-04-28 | 2016-10-04 | Proteus Digital Health, Inc. | Pharma-informatics system |
| US8802183B2 (en) | 2005-04-28 | 2014-08-12 | Proteus Digital Health, Inc. | Communication system with enhanced partial power source and method of manufacturing same |
| US7316766B2 (en) * | 2005-05-27 | 2008-01-08 | Taidoc Technology Corporation | Electrochemical biosensor strip |
| US7922883B2 (en) | 2005-06-08 | 2011-04-12 | Abbott Laboratories | Biosensors and methods of using the same |
| US7905999B2 (en) * | 2005-06-08 | 2011-03-15 | Abbott Laboratories | Biosensor strips and methods of preparing same |
| US7611621B2 (en) * | 2005-06-13 | 2009-11-03 | Nova Biomedical Corporation | Disposable oxygen sensor and method for correcting oxygen effect on oxidase-based analytical devices |
| JP4501793B2 (en) * | 2005-06-24 | 2010-07-14 | パナソニック株式会社 | Biosensor |
| US20070017824A1 (en) * | 2005-07-19 | 2007-01-25 | Rippeth John J | Biosensor and method of manufacture |
| US7918975B2 (en) * | 2005-11-17 | 2011-04-05 | Abbott Diabetes Care Inc. | Analytical sensors for biological fluid |
| US8617366B2 (en) * | 2005-12-12 | 2013-12-31 | Nova Biomedical Corporation | Disposable urea sensor and system for determining creatinine and urea nitrogen-to-creatinine ratio in a single device |
| US7811430B2 (en) * | 2006-02-28 | 2010-10-12 | Abbott Diabetes Care Inc. | Biosensors and methods of making |
| US20070205114A1 (en) * | 2006-03-01 | 2007-09-06 | Mathur Vijaywanth P | Method of detecting biosensor filling |
| US8529751B2 (en) | 2006-03-31 | 2013-09-10 | Lifescan, Inc. | Systems and methods for discriminating control solution from a physiological sample |
| KR101165200B1 (en) * | 2006-11-10 | 2012-07-17 | 주식회사 인포피아 | Bio-sensor |
| KR100829400B1 (en) * | 2006-11-30 | 2008-05-15 | 주식회사 인포피아 | Bio-sensor |
| JP4811267B2 (en) * | 2006-12-22 | 2011-11-09 | パナソニック株式会社 | Microchip and analytical device using the same |
| US20080297169A1 (en) * | 2007-05-31 | 2008-12-04 | Greenquist Alfred C | Particle Fraction Determination of A Sample |
| CN101755043B (en) * | 2007-07-23 | 2013-06-19 | 埃葛梅崔克斯股份有限公司 | Electrochemical test strip |
| JP4904219B2 (en) * | 2007-07-24 | 2012-03-28 | 株式会社タニタ | Liquid component measuring device |
| US8778168B2 (en) | 2007-09-28 | 2014-07-15 | Lifescan, Inc. | Systems and methods of discriminating control solution from a physiological sample |
| EP2235526B1 (en) * | 2007-12-10 | 2018-02-14 | Ascensia Diabetes Care Holdings AG | Porous particle reagent compositions, devices, and methods for biosensors |
| US8603768B2 (en) | 2008-01-17 | 2013-12-10 | Lifescan, Inc. | System and method for measuring an analyte in a sample |
| WO2009126900A1 (en) | 2008-04-11 | 2009-10-15 | Pelikan Technologies, Inc. | Method and apparatus for analyte detecting device |
| US20090294307A1 (en) * | 2008-06-02 | 2009-12-03 | Zenghe Liu | Redox polymer based reference electrodes having an extended lifetime for use in long term amperometric sensors |
| US8551320B2 (en) | 2008-06-09 | 2013-10-08 | Lifescan, Inc. | System and method for measuring an analyte in a sample |
| JP5204590B2 (en) * | 2008-08-28 | 2013-06-05 | 株式会社タニタ | Glucose sensor and manufacturing method thereof |
| US20120111739A1 (en) * | 2008-10-08 | 2012-05-10 | Pasqua John J | Dual Frequency Impedance Measurement of Hematocrit in Strips |
| 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 |
| NZ619375A (en) | 2009-04-28 | 2015-03-27 | Proteus Digital Health Inc | Highly reliable ingestible event markers and methods for using the same |
| KR101104400B1 (en) * | 2009-06-02 | 2012-01-16 | 주식회사 세라젬메디시스 | Biosensor for measuring biomaterial |
| RU2012143791A (en) | 2010-04-07 | 2014-05-20 | Проутьюс Диджитал Хэлс, Инк. | MINIATURE INGESTED DEVICE |
| US8965476B2 (en) | 2010-04-16 | 2015-02-24 | Sanofi-Aventis Deutschland Gmbh | Tissue penetration device |
| US8308923B2 (en) * | 2010-04-29 | 2012-11-13 | R3Dstar Biomedical Corp. | Biosensor strip |
| JP5698085B2 (en) | 2010-07-12 | 2015-04-08 | アークレイ株式会社 | Biosensor and manufacturing method thereof |
| JP2014504902A (en) | 2010-11-22 | 2014-02-27 | プロテウス デジタル ヘルス， インコーポレイテッド | Ingestible device with medicinal product |
| WO2015112603A1 (en) | 2014-01-21 | 2015-07-30 | Proteus Digital Health, Inc. | Masticable ingestible product and communication system therefor |
| US9322800B2 (en) | 2011-09-02 | 2016-04-26 | Lifescan Scotland Limited | Hematocrit corrected glucose measurements using phase angles and impedance for electrochemical test strip |
| US8603309B2 (en) | 2011-09-12 | 2013-12-10 | Nova Biomedical Corporation | Disposable sensor for electrochemical detection of hemoglobin |
| US20130098775A1 (en) * | 2011-10-20 | 2013-04-25 | Nova Biomedical Corporation | Glucose biosensor with improved shelf life |
| WO2014064978A1 (en) * | 2012-10-22 | 2014-05-01 | 株式会社村田製作所 | Biosensor and manufacturing method therefor |
| WO2014120669A1 (en) | 2013-01-29 | 2014-08-07 | Proteus Digital Health, Inc. | Highly-swellable polymeric films and compositions comprising the same |
| US9523653B2 (en) | 2013-05-09 | 2016-12-20 | Changsha Sinocare Inc. | Disposable test sensor with improved sampling entrance |
| US9796576B2 (en) | 2013-08-30 | 2017-10-24 | Proteus Digital Health, Inc. | Container with electronically controlled interlock |
| US9518951B2 (en) | 2013-12-06 | 2016-12-13 | Changsha Sinocare Inc. | Disposable test sensor with improved sampling entrance |
| US9897566B2 (en) | 2014-01-13 | 2018-02-20 | Changsha Sinocare Inc. | Disposable test sensor |
| US9939401B2 (en) | 2014-02-20 | 2018-04-10 | Changsha Sinocare Inc. | Test sensor with multiple sampling routes |
| US11051543B2 (en) | 2015-07-21 | 2021-07-06 | Otsuka Pharmaceutical Co. Ltd. | Alginate on adhesive bilayer laminate film |
| BR112019000861B1 (en) | 2016-07-22 | 2020-10-27 | Proteus Digital Health, Inc | electronic device |
| TWI735689B (en) | 2016-10-26 | 2021-08-11 | 日商大塚製藥股份有限公司 | Methods for manufacturing capsules with ingestible event markers |
Family Cites Families (27)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5682884A (en) | 1983-05-05 | 1997-11-04 | Medisense, Inc. | Strip electrode with screen printing |
| WO1986007632A1 (en) | 1985-06-21 | 1986-12-31 | Matsushita Electric Industrial Co., Ltd. | Biosensor and method of manufacturing same |
| DE68924026T3 (en) | 1988-03-31 | 2008-01-10 | Matsushita Electric Industrial Co., Ltd., Kadoma | BIOSENSOR AND ITS MANUFACTURE. |
| WO1991009139A1 (en) | 1989-12-15 | 1991-06-27 | Boehringer Mannheim Corporation | Redox mediator reagent and biosensor |
| US5508171A (en) | 1989-12-15 | 1996-04-16 | Boehringer Mannheim Corporation | Assay method with enzyme electrode system |
| CA2019758C (en) | 1990-06-25 | 2001-09-04 | Kevin L. Firth | Improved electroporation device and method |
| JPH0820412B2 (en) | 1990-07-20 | 1996-03-04 | 松下電器産業株式会社 | Quantitative analysis method and device using disposable sensor |
| JP3118015B2 (en) | 1991-05-17 | 2000-12-18 | アークレイ株式会社 | Biosensor and separation and quantification method using the same |
| US5264103A (en) | 1991-10-18 | 1993-11-23 | Matsushita Electric Industrial Co., Ltd. | Biosensor and a method for measuring a concentration of a substrate in a sample |
| FR2701117B1 (en) | 1993-02-04 | 1995-03-10 | Asulab Sa | Electrochemical measurement system with multizone sensor, and its application to glucose measurement. |
| DE4318519C2 (en) | 1993-06-03 | 1996-11-28 | Fraunhofer Ges Forschung | Electrochemical sensor |
| US5762770A (en) | 1994-02-21 | 1998-06-09 | Boehringer Mannheim Corporation | Electrochemical biosensor test strip |
| US5437999A (en) | 1994-02-22 | 1995-08-01 | Boehringer Mannheim Corporation | Electrochemical sensor |
| US5563067A (en) | 1994-06-13 | 1996-10-08 | Matsushita Electric Industrial Co., Ltd. | Cell potential measurement apparatus having a plurality of microelectrodes |
| US5628890A (en) | 1995-09-27 | 1997-05-13 | Medisense, Inc. | Electrochemical sensor |
| AUPN661995A0 (en) * | 1995-11-16 | 1995-12-07 | Memtec America Corporation | Electrochemical cell 2 |
| US5755953A (en) | 1995-12-18 | 1998-05-26 | Abbott Laboratories | Interference free biosensor |
| JP3365184B2 (en) | 1996-01-10 | 2003-01-08 | 松下電器産業株式会社 | Biosensor |
| US5708247A (en) | 1996-02-14 | 1998-01-13 | Selfcare, Inc. | Disposable glucose test strips, and methods and compositions for making same |
| US5759364A (en) | 1997-05-02 | 1998-06-02 | Bayer Corporation | Electrochemical biosensor |
| US6001239A (en) * | 1998-09-30 | 1999-12-14 | Mercury Diagnostics, Inc. | Membrane based electrochemical test device and related methods |
| US5997817A (en) * | 1997-12-05 | 1999-12-07 | Roche Diagnostics Corporation | Electrochemical biosensor test strip |
| US6338790B1 (en) * | 1998-10-08 | 2002-01-15 | Therasense, Inc. | Small volume in vitro analyte sensor with diffusible or non-leachable redox mediator |
| US6287451B1 (en) * | 1999-06-02 | 2001-09-11 | Handani Winarta | Disposable sensor and method of making |
| US6258229B1 (en) * | 1999-06-02 | 2001-07-10 | Handani Winarta | Disposable sub-microliter volume sensor and method of making |
| US6645359B1 (en) * | 2000-10-06 | 2003-11-11 | Roche Diagnostics Corporation | Biosensor |
| EP2889611B1 (en) * | 1999-11-15 | 2019-09-04 | PHC Holdings Corporation | Biosensor and measurement apparatus. |
-
2002
- 2002-04-19 US US10/126,818 patent/US6942770B2/en not_active Expired - Lifetime
-
2003
- 2003-04-16 ES ES03718411T patent/ES2301788T3/en not_active Expired - Lifetime
- 2003-04-16 CA CA2481426A patent/CA2481426C/en not_active Expired - Lifetime
- 2003-04-16 DE DE60319516T patent/DE60319516T2/en not_active Expired - Lifetime
- 2003-04-16 JP JP2003586369A patent/JP4620357B2/en not_active Expired - Lifetime
- 2003-04-16 AU AU2003221950A patent/AU2003221950A1/en not_active Abandoned
- 2003-04-16 WO PCT/US2003/011647 patent/WO2003089660A1/en active Application Filing
- 2003-04-16 EP EP03718411A patent/EP1497446B1/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| EP1497446A1 (en) | 2005-01-19 |
| DE60319516D1 (en) | 2008-04-17 |
| DE60319516T2 (en) | 2009-04-02 |
| JP2005523444A (en) | 2005-08-04 |
| US6942770B2 (en) | 2005-09-13 |
| JP4620357B2 (en) | 2011-01-26 |
| AU2003221950A1 (en) | 2003-11-03 |
| US20030196894A1 (en) | 2003-10-23 |
| WO2003089660A1 (en) | 2003-10-30 |
| ES2301788T3 (en) | 2008-07-01 |
| EP1497446B1 (en) | 2008-03-05 |
| CA2481426C (en) | 2012-02-14 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CA2481426A1 (en) | Disposable sub-microliter volume biosensor with enhanced sample inlet | |
| CA2481425A1 (en) | Disposable sensor with enhanced sample port inlet | |
| CN101014851B (en) | Electrochemical cell and method of making an electrochemical cell | |
| KR100741187B1 (en) | Electrochemical Sensor | |
| CA2375089C (en) | Disposable sub-microliter volume sensor and method of making | |
| EP1212609B1 (en) | Low interference disposable sensor and method of making | |
| JP3821685B2 (en) | Biosensor | |
| CA2470465C (en) | Improved biosensor and method | |
| EP1960771B1 (en) | Sensors | |
| ATE299947T1 (en) | ELECTROCHEMICAL DISPOSABLE BIOSENSOR FOR THE QUANTITATIVE DETERMINATION OF ANALYTE CONCENTRATIONS IN LIQUIDS | |
| JP5313876B2 (en) | Biosensor manufacturing method | |
| JP4318084B2 (en) | Analysis tool |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKEX | Expiry |
Effective date: 20230417 |