Method and device for analyzing a body fluid
First Claim
1. A method for analyzing a body fluid, in particular for blood glucose determination, in which body fluid is applied to a test element for single-use in a test device and the test element is optically coupled to a photometric measuring unit by means of an optical transmission system, the method comprising:
- recording a time course of measurements after the body fluid has been applied in order to detect a component of the body fluid on the test element,monitoring the transmission behavior of the optical transmission system by recording measurements at two different measurement wavelengths, anddetermining a difference in the transmission behavior of the optical transmission system before and after applying the body fluid from a wavelength-dependent comparison of the measurements.
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Abstract
Methods and devices for analyzing body fluids, in particular for determining blood glucose. Body fluid is applied to a test element for single-use in a test device and the test element is optically coupled to a photometric measuring unit by means of an optical transmission system, wherein a time course of measuring values is recorded after the body fluid has been applied in order to detect a component of the body fluid on the test element. The transmission behavior of the optical transmission system may be controlled by recording measuring values at two different measurement wavelengths.
29 Citations
15 Claims
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1. A method for analyzing a body fluid, in particular for blood glucose determination, in which body fluid is applied to a test element for single-use in a test device and the test element is optically coupled to a photometric measuring unit by means of an optical transmission system, the method comprising:
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recording a time course of measurements after the body fluid has been applied in order to detect a component of the body fluid on the test element, monitoring the transmission behavior of the optical transmission system by recording measurements at two different measurement wavelengths, and determining a difference in the transmission behavior of the optical transmission system before and after applying the body fluid from a wavelength-dependent comparison of the measurements. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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- 12. A device for analyzing a body fluid, in particular for blood glucose determination, comprising a portable test device having a photometric measuring unit and a test element coupled to the measuring unit by means of an optical transmission system, where body fluid is applied to the test element for a single-use test, the measuring unit is configured such that the transmission behavior of the optical transmission system is monitored by recording measurements at two different measurement wavelengths, and a difference in the transmission behavior of the optical transmission system is determined before and after applying the body fluid from a wavelength-dependent comparison of the measurements.
Specification