DE10357151B4 - Device for analyzing liquids - Google Patents
Device for analyzing liquids Download PDFInfo
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- DE10357151B4 DE10357151B4 DE10357151A DE10357151A DE10357151B4 DE 10357151 B4 DE10357151 B4 DE 10357151B4 DE 10357151 A DE10357151 A DE 10357151A DE 10357151 A DE10357151 A DE 10357151A DE 10357151 B4 DE10357151 B4 DE 10357151B4
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- liquid
- analyzed
- container
- analysis
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- Expired - Lifetime
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- 239000007788 liquid Substances 0.000 title claims abstract description 49
- 238000005516 engineering process Methods 0.000 claims abstract description 9
- 238000004458 analytical method Methods 0.000 claims description 17
- 239000012530 fluid Substances 0.000 claims description 15
- 230000003287 optical effect Effects 0.000 claims description 6
- 238000012360 testing method Methods 0.000 claims description 6
- 238000011156 evaluation Methods 0.000 claims description 5
- 244000052769 pathogen Species 0.000 claims 1
- 239000008280 blood Substances 0.000 description 6
- 210000004369 blood Anatomy 0.000 description 6
- 239000000126 substance Substances 0.000 description 5
- 210000001519 tissue Anatomy 0.000 description 5
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 4
- 210000001124 body fluid Anatomy 0.000 description 4
- 239000010839 body fluid Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 229910052710 silicon Inorganic materials 0.000 description 4
- 239000010703 silicon Substances 0.000 description 4
- 239000012491 analyte Substances 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 244000052616 bacterial pathogen Species 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000012528 membrane Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 238000001020 plasma etching Methods 0.000 description 2
- WQZGKKKJIJFFOK-GASJEMHNSA-N Glucose Natural products OC[C@H]1OC(O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-GASJEMHNSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000000502 dialysis Methods 0.000 description 1
- 238000000407 epitaxy Methods 0.000 description 1
- 239000008103 glucose Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 210000002414 leg Anatomy 0.000 description 1
- 210000002751 lymph Anatomy 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 210000000689 upper leg Anatomy 0.000 description 1
- 238000000196 viscometry Methods 0.000 description 1
- 238000007704 wet chemistry method Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
- B01L3/00—Containers or dishes for laboratory use, e.g. laboratory glassware; Droppers
- B01L3/50—Containers for the purpose of retaining a material to be analysed, e.g. test tubes
- B01L3/502—Containers for the purpose of retaining a material to be analysed, e.g. test tubes with fluid transport, e.g. in multi-compartment structures
- B01L3/5027—Containers for the purpose of retaining a material to be analysed, e.g. test tubes with fluid transport, e.g. in multi-compartment structures by integrated microfluidic structures, i.e. dimensions of channels and chambers are such that surface tension forces are important, e.g. lab-on-a-chip
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/15—Devices for taking samples of blood
- A61B5/150007—Details
- A61B5/150015—Source of blood
- A61B5/150022—Source of blood for capillary blood or interstitial fluid
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/15—Devices for taking samples of blood
- A61B5/150007—Details
- A61B5/150206—Construction or design features not otherwise provided for; manufacturing or production; packages; sterilisation of piercing element, piercing device or sampling device
- A61B5/150274—Manufacture or production processes or steps for blood sampling devices
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/15—Devices for taking samples of blood
- A61B5/150007—Details
- A61B5/150206—Construction or design features not otherwise provided for; manufacturing or production; packages; sterilisation of piercing element, piercing device or sampling device
- A61B5/150274—Manufacture or production processes or steps for blood sampling devices
- A61B5/150282—Manufacture or production processes or steps for blood sampling devices for piercing elements, e.g. blade, lancet, canula, needle
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/15—Devices for taking samples of blood
- A61B5/150007—Details
- A61B5/150343—Collection vessels for collecting blood samples from the skin surface, e.g. test tubes, cuvettes
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/15—Devices for taking samples of blood
- A61B5/150007—Details
- A61B5/150358—Strips for collecting blood, e.g. absorbent
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/15—Devices for taking samples of blood
- A61B5/150007—Details
- A61B5/150374—Details of piercing elements or protective means for preventing accidental injuries by such piercing elements
- A61B5/150381—Design of piercing elements
- A61B5/150389—Hollow piercing elements, e.g. canulas, needles, for piercing the skin
- A61B5/150404—Specific design of proximal end
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/15—Devices for taking samples of blood
- A61B5/150007—Details
- A61B5/150374—Details of piercing elements or protective means for preventing accidental injuries by such piercing elements
- A61B5/150381—Design of piercing elements
- A61B5/150503—Single-ended needles
- A61B5/150511—Details of construction of shaft
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- A—HUMAN NECESSITIES
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- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/15—Devices for taking samples of blood
- A61B5/150007—Details
- A61B5/150374—Details of piercing elements or protective means for preventing accidental injuries by such piercing elements
- A61B5/150534—Design of protective means for piercing elements for preventing accidental needle sticks, e.g. shields, caps, protectors, axially extensible sleeves, pivotable protective sleeves
- A61B5/150541—Breakable protectors, e.g. caps, shields or sleeves, i.e. protectors separated destructively, e.g. by breaking a connecting area
- A61B5/150557—Protectors removed by bending
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/15—Devices for taking samples of blood
- A61B5/150007—Details
- A61B5/150374—Details of piercing elements or protective means for preventing accidental injuries by such piercing elements
- A61B5/150534—Design of protective means for piercing elements for preventing accidental needle sticks, e.g. shields, caps, protectors, axially extensible sleeves, pivotable protective sleeves
- A61B5/15058—Joining techniques used for protective means
- A61B5/150618—Integrally moulded protectors, e.g. protectors simultaneously moulded together with a further component, e.g. a hub, of the piercing element
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/15—Devices for taking samples of blood
- A61B5/150007—Details
- A61B5/150374—Details of piercing elements or protective means for preventing accidental injuries by such piercing elements
- A61B5/150534—Design of protective means for piercing elements for preventing accidental needle sticks, e.g. shields, caps, protectors, axially extensible sleeves, pivotable protective sleeves
- A61B5/150694—Procedure for removing protection means at the time of piercing
- A61B5/150717—Procedure for removing protection means at the time of piercing manually removed
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/15—Devices for taking samples of blood
- A61B5/151—Devices specially adapted for taking samples of capillary blood, e.g. by lancets, needles or blades
- A61B5/15101—Details
- A61B5/15103—Piercing procedure
- A61B5/15105—Purely manual piercing, i.e. the user pierces the skin without the assistance of any driving means or driving devices
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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
- A61B5/15—Devices for taking samples of blood
- A61B5/151—Devices specially adapted for taking samples of capillary blood, e.g. by lancets, needles or blades
- A61B5/15142—Devices intended for single use, i.e. disposable
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
- B01L2200/00—Solutions for specific problems relating to chemical or physical laboratory apparatus
- B01L2200/10—Integrating sample preparation and analysis in single entity, e.g. lab-on-a-chip concept
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
- B01L2300/00—Additional constructional details
- B01L2300/06—Auxiliary integrated devices, integrated components
- B01L2300/0627—Sensor or part of a sensor is integrated
- B01L2300/0645—Electrodes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
- B01L3/00—Containers or dishes for laboratory use, e.g. laboratory glassware; Droppers
- B01L3/50—Containers for the purpose of retaining a material to be analysed, e.g. test tubes
- B01L3/502—Containers for the purpose of retaining a material to be analysed, e.g. test tubes with fluid transport, e.g. in multi-compartment structures
- B01L3/5027—Containers for the purpose of retaining a material to be analysed, e.g. test tubes with fluid transport, e.g. in multi-compartment structures by integrated microfluidic structures, i.e. dimensions of channels and chambers are such that surface tension forces are important, e.g. lab-on-a-chip
- B01L3/502715—Containers for the purpose of retaining a material to be analysed, e.g. test tubes with fluid transport, e.g. in multi-compartment structures by integrated microfluidic structures, i.e. dimensions of channels and chambers are such that surface tension forces are important, e.g. lab-on-a-chip characterised by interfacing components, e.g. fluidic, electrical, optical or mechanical interfaces
-
- 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
- G01N27/02—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance
- G01N27/04—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance
- G01N27/06—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance of a liquid
- G01N27/07—Construction of measuring vessels; Electrodes therefor
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- General Health & Medical Sciences (AREA)
- Hematology (AREA)
- Surgery (AREA)
- Biophysics (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Physics & Mathematics (AREA)
- Animal Behavior & Ethology (AREA)
- Pathology (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Dermatology (AREA)
- Dispersion Chemistry (AREA)
- Analytical Chemistry (AREA)
- Clinical Laboratory Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Investigating Or Analysing Biological Materials (AREA)
- Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
Abstract
Vorrichtung
zur Analyse von Flüssigkeiten,
wobei die Vorrichtung
– Mittel
(21) zur Aufnahme der zu analysierenden Flüssigkeit,
– einen
Kanal (32) oder eine Röhre
zur Zuführung
der zu analysierenden Flüssigkeit,
und
– ein
Behältnis
(20) zur Aufbewahrung der zu analysierenden Flüssigkeit, und
– Mittel
zur Analyse der in dem Behältnis
(20) aufbewahrten zu analysierenden Flüssigkeit umfasst, wobei
– die Vorrichtung
in Mikrosystemtechnik aufgebaut ist.Device for analyzing liquids, wherein the device
- means (21) for receiving the liquid to be analyzed,
- A channel (32) or a tube for supplying the liquid to be analyzed, and
A container (20) for storing the liquid to be analyzed, and
- Means for analyzing the stored in the container (20) to be analyzed liquid, wherein
- The device is constructed in microsystem technology.
Description
Stand der TechnikState of technology
Die Erfindung betrifft eine Vorrichtung zur Analyse von Flüssigkeiten.The The invention relates to a device for analyzing liquids.
Zur Untersuchung von Flüssigkeiten, z.B. aus biologischen Geweben, wird zunächst mit einer ersten Vorrichtung eine Probe der Flüssigkeit entnommen und diese Probe dann in einer zweiten Vorrichtung untersucht. Im beispielhaften Fall der Untersuchung von Blut wird zunächst das Blut mit einer Edelstahlnadel aus dem Körper des Patienten entnommen und danach auf einen Teststreifen aufgetragen, wo das Blut analysiert wird.to Examination of liquids, e.g. from biological tissues, is first with a first device a sample of the liquid and then examined this sample in a second device. In the exemplary case of the examination of blood is first the Blood taken from the patient's body with a stainless steel needle and then applied to a test strip where the blood is analyzed becomes.
In
der
Aus
Schließlich beschreibt
Es besteht Bedarf nach einer Vorrichtung zur Aufnahme und Analyse von Flüssigkeiten, die möglichst einfach aufgebaut, sowie billig und massenhaft herzustellen ist.It There is a need for a device for receiving and analyzing Liquids, the possible easy to set up, as well as cheap and mass produced.
Gelöst wird diese Aufgabe durch die im Patentanspruch 1 angegeben Merkmale.Is solved This object is achieved by the features specified in patent claim 1.
Vorteile der ErfindungAdvantages of the invention
Die Erfindung geht aus von einer Vorrichtung zur Analyse von Flüssigkeiten, wobei die Vorrichtung Mittel zur Flüssigkeitsaufnahme und zur Flüssigkeitsanalyse umfasst. Ein Aspekt der Erfindung besteht darin, dass die Vorrichtung in Mikrosystemtechnik aufgebaut ist. Vorteilhaft ist hierbei, dass die erfindungsgemäße Vorrichtung in Mikrosystemtechnik massenhaft und billig hergestellt werden kann. Weiterhin ist von Vorteil, dass die Verfahrensschritte Entnahme und Analyse der Flüssigkeit mittels einer einzigen Vorrichtung durchgeführt werden können. Eine Übertragung der Flüssigkeit ist nicht notwendig.The Invention is based on a device for analyzing liquids, the device comprising fluid acquisition and fluid analysis means includes. One aspect of the invention is that the device is built in microsystem technology. It is advantageous here that the device according to the invention can be mass produced in microsystem technology and cheap. Furthermore, it is advantageous that the method steps removal and analysis of the liquid can be performed by a single device. A transmission the liquid is not necessary.
Bei einer vorteilhaften Ausgestaltung der Erfindung ist vorgesehen, dass die Vorrichtung zur Flüssigkeitsaufnahme eine Spitze aufweist.at an advantageous embodiment of the invention is provided that the device for fluid intake has a peak.
Bei einer besonders vorteilhaften Ausgestaltung der Erfindung ist vorgesehen, dass die Flüssigkeitsanalyse elektrisch, insbesondere mittels Elektroden, erfolgt. Die elektrische Analyse der Flüssigkeit kann darin bestehen, dass unmittelbar elektrische Eigenschaften der Flüssigkeit bestimmt werden. Hierzu sind insbesondere Elektroden geeignet. Die Mikrosystemtechnik ermöglicht es in besonders vorteilhafter Weise an Vorrichtungen Mittel vorzusehen, die in der Lage sind, elektrische Signale zu erzeugen, weiterzuleiten und zu verarbeiten. Die Flüssigkeitsanalyse kann auch mittelbar elektrisch erfolgen, indem die Mittel zur Analyse nichtelektrische Parameter, wie z.B. optische Eigenschaften, der zu analysierenden Flüssigkeit messen und in elektrische Signale umwandeln.at a particularly advantageous embodiment of the invention is provided that the fluid analysis electrically, in particular by means of electrodes. The electric Analysis of the liquid can consist in that immediately electrical properties of the liquid be determined. In particular, electrodes are suitable for this purpose. The Microsystem technology allows it is particularly advantageous to provide means on devices which are capable of generating electrical signals to pass on and process. The fluid analysis can also be done indirectly electrically by the means of analysis non-electrical parameters, e.g. optical properties, the liquid to be analyzed measure and convert into electrical signals.
Bei einer weiteren vorteilhaften Ausgestaltung der Erfindung ist vorgesehen, dass die Vorrichtung bis zur Benutzung im Wesentlichen frei von biologischen Keimen und/oder Fremdstoffen ist. Das innere der Vorrichtung ist hierbei vom Zeitpunkt der Herstellung bis zur Benutzung von der Außenwelt abgeschlossen. Vorteilhaft ist hierbei, dass die zu analysierende Flüssigkeit im Wesentlichen in reiner Form, d.h. ohne Verunreinigungen, z.B. durch Fremdstoffe oder Organismen, untersucht werden kann, was die Genauigkeit der Untersuchung entscheidend verbessern kann.at a further advantageous embodiment of the invention is provided that the device is substantially free of use until use biological germs and / or foreign substances. The interior of the device is from the time of manufacture to the use of the outside world completed. The advantage here is that the analyzed liquid essentially in pure form, i. without impurities, e.g. by foreign substances or organisms, it can be investigated what the Decisively improve the accuracy of the examination.
Bei einer weiteren vorteilhaften Ausgestaltung der erfindungsgemäßen Vorrichtung ist vorgesehen, dass die Elektroden mittels in die Vorrichtung integrierter Kontakte kontaktiert werden können und, insbesondere mittels einer Auswertevorrichtung, elektrische Eigenschaften der zu analysierenden Flüssigkeit bestimmt werden können. Diese Ausgestaltung ermöglicht es beispielsweise, eine externe Auswerteeinrichtung vorzusehen und die Vorrichtung zur Analyse von Flüssigkeiten selbst möglichst einfach und billig vorzusehen. Vorteilhaft ist hierbei, dass die Vorrichtung zur Analyse von Flüssigkeiten für die einmalige Verwendung vorgesehen werden kann, was besonders im Hinblick auf mögliche Verunreinigungen der zu analysierenden Flüssigkeit von Vorteil ist.In a further advantageous embodiment of the device according to the invention it is provided that the electrodes can be contacted by means of contacts integrated in the device and, in particular by means of an evaluation device, electrical properties of the liquid to be analyzed can be determined. This refinement makes it possible, for example, to provide an external evaluation device and to provide the device for analyzing liquids itself as simply and inexpensively as possible. It is advantageous here that the device can be provided for the analysis of liquids for single use, which is particularly with regard to possible contamination of the liquid to be analyzed by Advantage is.
Bei einer vorteilhaften Ausgestaltung der Erfindung ist vorgesehen, dass die Vorrichtung eine optische und/oder elektrische Abschirmung besitzt. Eine solche Abschirmung verringert Messfehler bei optischen oder elektrischen Messungen an der zu analysierenden Flüssigkeit, bzw. verringert Übertragungsfehler bei der Weiterleitung elektrischer oder optischer Signale an eine Auswertevorrichtung.at an advantageous embodiment of the invention is provided that the device has an optical and / or electrical shielding has. Such a shield reduces measurement errors in optical or electrical measurements on the liquid to be analyzed, or reduces transmission errors in the transmission of electrical or optical signals to a Evaluation.
Bei einer besonders vorteilhaften Ausgestaltung der Erfindung ist vorgesehen, dass die Mittel zur Flüssigkeitsaufnahme derart ausgestaltet sind, dass sie geeignet sind in biologisches Gewebe einzudringen und daraus Flüssigkeit aufzunehmen. Dies ist besonders vorteilhaft bei der Blutabnahme und Blutuntersuchung. Auch andere Körperflüssigkeiten können so vorteilhaft entnommen und analysiert werden.at a particularly advantageous embodiment of the invention is provided that means for fluid intake are designed so that they are suitable in biological Penetrate tissue and absorb liquid from it. This is particularly beneficial in blood collection and blood testing. Also other body fluids can be taken as advantageous and analyzed.
Eine weitere vorteilhafte Ausgestaltung der Erfindung sieht vor, dass die Vorrichtung derart ausgestaltet ist, dass ein elektrischer Selbsttest, insbesondere zur Bestimmung des Füllstandes des Behältnisses zur Flüssigkeitsanalyse, durchgeführt werden kann. Zur Überprüfung der Funktion der Vorrichtung ist ein Selbsttest vorteilhaft. Insbesondere eine Kontrolle des Füllstandes im Behältnis zur Flüssigkeitsanalyse ist vorteilhaft für eine genaue Flüssigkeitsanalyse oder auch als Indikator dafür, dass die Messung ungültig ist und Flüssigkeitsaufnahme und Flüssigkeitsanalyse wiederholt werden müssen.A Further advantageous embodiment of the invention provides that the device is designed such that an electrical self-test, in particular for determining the filling level of the container for fluid analysis, carried out can be. To check the Function of the device, a self-test is advantageous. Especially a check of the level in the container for fluid analysis is beneficial for an accurate fluid analysis or as an indicator of that the measurement is invalid is and fluid intake and fluid analysis must be repeated.
Weitere vorteilhafte Ausgestaltungen sind den Unteransprüchen zu entnehmen.Further advantageous embodiments are given in the dependent claims.
Zeichnungdrawing
Ausführungsbeispiele der Erfindung sind in der Zeichnung dargestellt und in der nachfolgenden Beschreibung näher erläutert.embodiments The invention are illustrated in the drawing and in the following description explained in more detail.
Beschreibung von Ausführungsbeispielendescription of exemplary embodiments
Anhand der im folgenden beschriebenen Ausführungsformen soll die Erfindung detailliert dargestellt werden.Based the embodiments described below, the invention be presented in detail.
Claims (8)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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DE10357151A DE10357151B4 (en) | 2003-12-06 | 2003-12-06 | Device for analyzing liquids |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10357151A DE10357151B4 (en) | 2003-12-06 | 2003-12-06 | Device for analyzing liquids |
Publications (2)
Publication Number | Publication Date |
---|---|
DE10357151A1 DE10357151A1 (en) | 2005-07-14 |
DE10357151B4 true DE10357151B4 (en) | 2007-11-22 |
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DE10357151A Expired - Lifetime DE10357151B4 (en) | 2003-12-06 | 2003-12-06 | Device for analyzing liquids |
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Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19501159A1 (en) * | 1995-01-06 | 1996-07-11 | Rudolf Prof Dr Sc Nat Ehwald | Micro-sensor for glucose determn. by affinity viscometry |
DE19860117A1 (en) * | 1998-12-23 | 2000-07-13 | Evotec Biosystems Ag | Electrode arrangement in microsystem for dielectrophoretic manipulation of suspended particles |
DE10010587A1 (en) * | 2000-03-03 | 2001-09-06 | Roche Diagnostics Gmbh | System for the determination of analyte concentrations in body fluids |
-
2003
- 2003-12-06 DE DE10357151A patent/DE10357151B4/en not_active Expired - Lifetime
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19501159A1 (en) * | 1995-01-06 | 1996-07-11 | Rudolf Prof Dr Sc Nat Ehwald | Micro-sensor for glucose determn. by affinity viscometry |
DE19860117A1 (en) * | 1998-12-23 | 2000-07-13 | Evotec Biosystems Ag | Electrode arrangement in microsystem for dielectrophoretic manipulation of suspended particles |
DE10010587A1 (en) * | 2000-03-03 | 2001-09-06 | Roche Diagnostics Gmbh | System for the determination of analyte concentrations in body fluids |
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