Apparatus for the measurement of a test field in a test strip such as for blood sugar has a divided measurement zone for the difference in readings to be compared with a threshold value to show correct strip positioning
Номер патента: DE19932846A1
Опубликовано: 18-01-2001
Автор(ы): Norbert Poellmann
Принадлежит: LRE Technologies Partner GmbH
Опубликовано: 18-01-2001
Автор(ы): Norbert Poellmann
Принадлежит: LRE Technologies Partner GmbH
Реферат: The system to detect the faulty positioning of a test strip in a measurement apparatus, to give a measurement of a substance in a liquid, has a divided measurement field (16) at the apparatus for the test strip (20) test field. The system to detect the faulty positioning of a test strip in a measurement apparatus, to give a measurement of a substance in a liquid, has a divided measurement field (16) at the apparatus for the test strip (20) test field. The measurement field (16) is split into at least two measurement zones, in succession in the direction of test strip (20) insertion into the apparatus, so that the strip test field is scanned separately in each zone. The test strip (20) has two zones (28,29) in succession, in front of the test field (24) in the direction of strip insertion, each with a different light reflection or transmission capacity. The difference between the measured value in the two measurement zones is compared with a given threshold value and, on breaching the threshold, a signal is generated to indicate that the test strip position is faulty. The carrier (22) to hold the test fluid has the leading zones (28,29) in dimensions which match the size of the measurement zone. The zones with a different light reflection or transmission are formed by strips in different colors, printed on to the carrier surface.
Apparatus for the evaluation of a test carrier for the analytical determination of components of a body fluid
Номер патента: CA1228246A. Автор: Thomas Jack,Dieter Meinecke,Dieter Knoll,Rudolf Schüssler,Manfred Pauli,Rainer van Rijckevorsel. Владелец: Boehringer Mannheim GmbH. Дата публикации: 1987-10-20.