Lre Technology Partner Gmbh

Boehringer Mannheim Gmbh

Labora Mannheim Gmbh Fur Labortechnik

Ernst Markart

Martin Eisenmann

Norbert Pöllmann

Klaus Deuter

Franz Bolduan

Norbert P&ouml;llman

Jorg Schreiber

Reinhard Blumel

Jurgen Denker

Genrich Siris

Werner Trapp

Michael Tutzer

Michael Voigt

Reinhard Woznik

The present invention provides a test field system, including a test strip with a test field, and a measuring device having a test strip receiver for measuring the test field. The test strip receiver inducing a support surface for the test strip and positioners for holding the test strip inserted in the strip receiver so that a section of the test strip containing the test field is held in a definite position relative to the support surface. The strip receiver having two holding members spaced from one another on edge areas of the support surface for holding fast associated edges of the test strip substantially adjacent the support surface, the support surface in a middle area between the holding means is vertically displaced from the edge areas such that the test field of a test strip inserted in the test strip receiver is spaced apart from the support surface.

Test strip system

In a method for the measurement of the concentration of a substance in a liquid, especially for blood sugar measurement, the liquid to be measured is applied to the measuring field of a test strip, which measuring field is composed of a hydrophilic material, and the change of the optical reflectivity or transmissivity effected thereby in the area of the measuring field is captured. A measured value taken after a pre-given time is compared with a reference value and an indication is made if a relationship of the measured value to the reference value exceeds a pre-given threshold value.

Method and apparatus for measuring blood sugar

In a wristwatch including a housing, a time measuring device ( ), a test measuring device ( ) for a measuring by way of electric current a test strip ( ) which has at least one test field wetable by a liquid to be investigated, and an indicator device ( ) connected with the time measuring device ( ) and test measuring device ( ), a band holding member ( ) is releasably connected to the housing and is oriented parallel to a housing outer surface ( ), and together with the housing outer surface ( ) forms a receiving opening ( ) for holding a test strip ( ) in a pre-given position, with the housing outer surface ( ) having at least two measuring contact elements ( ) connected with the test measuring device ( ) for contacting electrodes of the test strip ( ) and so arranged that their free ends protrude into the receiving opening ( ).

Wristwatch with measuring function

In a test strip measuring system, such as for measuring the concentration of certain substances in body fluids, the system consists of a test strip onto which the fluid to be investigated is applied, and a measuring device into which the test strip is inserted for making the desired measurements. The system further includes a code carrier with a memory storing information concerning the manufacturing of the test strip and/or the measurement to be carried out in using the test strip. Still further, the system includes an adapter through which the code carrier is connectable with a data processing unit for the measuring device. On one hand, the adapter allows one and the same code carrier to be used with different measuring device and on the other hand allows different code carriers to be used with one and the same measuring devices.

Test strip measuring system

An apparatus for determining microorganisms in liquid test specimens includes a specimen providing station ( ) with a transport apparatus ( ) for the continuous provision of cuvettes ( ) containing specimens to be investigated, a dosing station ( ) with a pipetting apparatus ( ) for removing specimens from cuvettes ( ) and for filling the specimens into measuring chambers formed in a measuring chamber plate ( ) in matrix arrangement, a measuring station ( ) with a measuring apparatus ( ) for optically measuring the specimens in the measuring chambers and an endless conveyor ( ) for serially receiving the measuring chamber plates ( ) and for transporting the same through a dosing station ( ), a measuring station ( ) and through a temperature controllable waiting zone ( ).

Apparatus for the determination of microorganisms in liquid test specimens

In a test strip measuring system including a test strip with at least one test field and a measuring device for measuring optically or by means of electrical currents detectable values of the test field, a code carrier is provided for insertion into the measuring device along with the test strip. The code carrier, by way of an electronic memory, stores information used by the measuring device in measuring the test field of the test strip. The code carrier also includes a data processing device for reading the stored information from the memory and for supplying it to the measuring device. The selection of the program for reading the stored information from its memory and other factors are so controlled by controlled information supplied from the measuring device as to make it extremely difficult for copiers to make usable copies of the code carrier by merely copying the information stored in the code carrier memory.

In a measuring device for measuring the concentration of a substance in a liquid applied to the test field of a test strip having two first electrical contacts at its forward end connected to the test field, a conductor plate inside of the device carries a measuring and evaluation circuit and also has formed on it two second electrical contacts which two second electrical contacts, when the forward end of the test strip is inserted into the device through an insertion slot, are brought into contact with the two first contacts on the test strip to connect the test field of the test strip in circuit with the measuring and evaluation circuit of the conductor plate.

Measuring device for the electrical measurement of test strips

In a test strip package having a plurality of test strips (,), each of which test strips has a test field (,) for evaluation by an optical measuring mechanism of a measuring device and including a container (,) for receiving the test strips (,) the container (,) is made as a rectangular closed flat envelope (,) for receiving a rectangular card (,), with the card (,) consisting of a plurality of test strips (,) which are separable from one another along tear lines (,). The measuring device comprises a device housing (,) with a test strip support surface (,) as well as a measuring optic system, an evaluation and control circuit and an indicator unit (,) contained in the housing, with the test strip surface (,) having a stop (,) for reception in a recess (,) in the envelope (,) as well as a stop (,) which is so positioned relative to the measuring optic system that upon the placement of a predetermined spot of a test strip (,) onto the stop (,) the test field (,) of the test strip (,) lies in the area of the measuring beam of the measuring optic system.

Measuring device for use with a test strip

A measuring device for measuring the concentration of a substance in a liquid, especially a body liquid, is designed for use with a test card having test sections with test fields located next to one another in the longitudinal direction of the card. The device has a housing for receiving one or more test cards and has an exposed test card support surface providing a measuring station with a measuring opening through which optical or electrical sensors sense the test field of a test section of a test card. A hand actuatable transport mechanism, which may be an actuating lever, a transport roll or a transport belt is engageable with a test card in the housing to advance it forwardly to bring a test section to the measuring station. The housing for the device is made of upper and lower portions which may be movable relative to one another with that movement used to drive the transport mechanism. The device also includes a hand operable apparatus for cutting a used test section from the test card and various means are provided for inhibiting the test fields of the cards contained in the housing from coming into contact with ambient air in order to prevent the moisture and/or other factors in the ambient air from negatively influencing the usefulness of the test sections.

Measuring device for determining the concentration of a substance in a

In a test strip for use with a measuring device for determining the concentration of a substance in a body fluid by means of an optical measuring system using a beam of light directed onto a measuring field of the measuring strip, the measuring strip is formed of a bottom layer, a cover layer and a spacer layer located between the bottom layer and the cover layer. The bottom layer has a pass through opening for the light beam and the cover layer has a drop application opening with these two openings being displaced from one another so as to be out of overlapping relationship with one another. The spacer layer has an elongated opening or recess, a portion of which overlies the pass through opening of the bottom layer and another portion of which underlies the drop application opening of the upper layer. The recess in the spacer layer also receives a web of absorbent material, which absorbent material overlies the beam pass through opening and forms the measuring field. Body fluid applied to the drop application opening is absorbed by the absorbent material of the measuring field. The material of the spacing layer may also be absorbent but has an absorption response retarded from that of the measuring field material, so that the measuring field material fills itself with the applied body fluid before a significant amount of the body fluid is absorbed by the material of the spacing layer.

Test strip for measuring device for optically detecting the

A test card for use with a measuring device for evaluating the concentration of a substance in a liquid, such as a substance in a body liquid, is made up of a number of layers of material preferably capable of being united with one another in a continuous process as the layers are unrolled from associated supply rolls. Each test card includes a plurality of individually usable test sections connected with one another and arranged in succession along the longitudinal direction of the card. The layers of material making up the card include at least a reaction layer and an overlying cover layer with the cover layer having a drop application opening in each test section for receiving a drop of the liquid to be accommodated. A distribution layer and a carrier layer of material may also be included in the card with the carrier layer in each test section having a measuring opening registering with the drop application opening, and lines of weakening are provided between neighboring test sections to allow easy removal of a used test section from the remaining ones.

Test card for an optical or electrical determination of the

In a test strip package having a plurality of test strips (20), each of which test strips has a test field (32) for evaluation by an optical measuring mechanism of a measuring device and including a container (12) for receiving the test strips (20) the container (12) is made as a rectangular closed flat envelope (12) for receiving a rectangular card (18), with the card (18) consisting of a plurality of test strips (20) which are separable from one another along tear lines (22). The measuring device comprises a device housing (38) with a test strip support surface (40) as well as a measuring optic system, an evaluation and control circuit and an indicator unit (42) contained in the housing, with the test strip surface (40) having a stop (44) for reception in a recess (30) in the envelope (12) as well as a stop (46) which is so positioned relative to the measuring optic system that upon the placement of a predetermined spot of a test strip (20) onto the stop (46) the test field (32) of the test strip (20) lies in the area of the measuring beam of the measuring optic system.

Test strip

In an apparatus and method for detecting the concentration of a substance in a fluid, such as the concentration of sugar in blood, the measuring field of a test strip to which the fluid to be tested in applied is divided into two separate measuring areas. The change in the light reflection or light transmission capacity of the two measuring areas is then detected separately at repetitive time intervals, and in comparing the changes in light reflectivity or light transmission of the two measuring areas over time, perceived differences in the changes occurring in the two areas are evaluated to provide useful information.

Method and apparatus for the measurement of blood sugar

Test carrier analysis system for analyzing a constituent of a body fluid, consisting of test carriers (2), code carriers (3) and an evaluation device (4). The test layers (5) of the test carrier (2) contain reagents whose reaction with the sample leads to a color change characteristic of the analysis in a detection layer. The code carriers (3) contain in machine-readable form an evaluation code with an evaluation curve required for the evaluation of the test carriers. The evaluation device (4) comprises a measuring device, a code reading device and evaluation electronics. Possible operating errors are eliminated, almost without additional expenditure, by the fact that single code reader containing two reading units offset relative to one another both laterally and in the reading direction is positioned on a common insertion path (28) both for the test carriers (2) and for the code carriers (3), the test carriers (2) possess a batch-specific identification code in the form of continuous strips, the evaluation code on the code carriers (3) is a two-track code and contains a batch identification, and the evaluation device (4) comprises a comparison unit for checking the correlation of the batch of the respective test carrier (2) to be evaluated with the stored evaluation information.

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Munich, Germany

Ernst Markart