Boehringer Mannheim Gmbh

Hitachi, Ltd.

Polyic Gmbh & Co Kg

Bernd Rosicke

Kazuhiro Tanaka

Shigeki Matsubara

Wolfgang Clemens

Akira Inagaki

Axel Gerlt

Rudolf V Rosenbladt

A measuring apparatus for determining an analyte in a liquid sample includes the following apparatus components: a test element with a test field for applying the liquid sample, the test element experiencing a detectable modification due to the analyte to be determined, a detector which detects the modification and generates an electrical detector signal as a function of it, an evaluation circuit arranged downstream of the detector, which evaluates the detector signal to form a measurement result, a display device connected to the evaluation circuit for displaying the measurement result, and an electrical power supply for supplying electrical power to the electrical apparatus components. At least some of the electrical apparatus components are formed on the basis of polymer electronics so that the analyte can be determined straightforwardly, conveniently and inexpensively.

Measuring apparatus used for determining an analyte in a liquid sample, comprising polymer electronic components

The present invention relates to an apparatus for transferring a liquid capable of accurately performing detection of a liquid level using a pipetting probe even in a case of a high electric conductivity of a in-flow-passage moving fluid which transmits sucking and discharging operation of a syringe (107) to the pipetting probe (100, 400, 500, 600). The probe has a liquid level sensing electrode (103, 401, 501, 601) and an inner tube (102, 402, 502, 602). The liquid level sensing electrode capable of contacting with a liquid to be pipetted is electrically separated from an inner tube filled with the moving fluid, and the both are insulated by an electric insulating member (104B, 403, 503) between them. A container (111) containing the liquid to be pipetted is held by a container holder (112), and a liquid level can be detected by change in an electrostatic capacitance between the container holder and the liquid level sensing electrode of the probe when the probe is moved downward. During sucking the liquid, the inner tube is not brought in contact with the liquid. The inner tube and the container holder are grounded.

Apparatus for trasferring liquid having liquid level sensing function

A method and device for detecting and evaluating the optical properties of a specimen, utilizing a light source that has alternating light and dark phases, a detector that picks up light from the light source by way of the specimen being examined, and a circuit that integrates and digitalizes the signals received from the detector, that includes an integrator, and that can be connected to the detector. The signals emitted from the detector are integrated both during at least part of the light phase and during at least part of the dark phase. The integral obtained during the dark phase is subtracted from that obtained during the light phase in order to determine the results. The integrator that is used to integrate the signals is used like an analog-to-digital converter of the double-integration type to convert the integral into a digital signal. To achieve maximum precision and simplicity in the integration and digitalization phase, each part of the light or dark phase is followed by a measurement-voltage period during which the signals coming from the detector are applied in sequence and with opposite mathematical signs to a single integrator. Integration is carried out over a whole number of measurement-voltage periods to form a total integral.

Method of detecting and evaluating photometric signals and device for

Growing community of inventors

Mannheim, Germany

Bernd Rosicke