Method for monitoring an arrangement for determining the concentration of an analyte in a body fluid
First Claim
1. A method for monitoring an arrangement for determining concentration of an analyte in a body fluid, the arrangement having an interface through which the body fluid passes, a flowmeter chamber which receives a stream of the liquid and carries out a measurement to determine concentration of the analyte, and a signal processor which evaluates the measurement, the method comprising the following steps:
- using a sensor system to obtain measured values of at least two correlated system parameters of the arrangement;
comparing the measured values with limit values stored for each of the system parameters in a storage unit to obtain at least two comparison results; and
determining with the signal processor whether a malfunction has occurred in the arrangement based upon the at least two comparison results.
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Accused Products
Abstract
The invention relates to a method for monitoring an arrangement for determining a concentration of an analyte in a body fluid. The determination of the concentration of the analyte by means of the arrangement involves a procedure in which the analyte from the body fluid passes through an interface and is transported in a stream of liquid into a flowmeter chamber, in which a measurement is carried out to determine the concentration of the analyte. The evaluation of the measurement takes place in a signal processor. The monitoring of the arrangement comprises the following steps: measurement of measured values of at least two correlated system parameters of the arrangement by means of a sensor system, and comparison of the measured values with limit values stored for each of the system parameters in a storage unit, to obtain a combination of at least two comparison results.
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Citations
9 Claims
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1. A method for monitoring an arrangement for determining concentration of an analyte in a body fluid, the arrangement having an interface through which the body fluid passes, a flowmeter chamber which receives a stream of the liquid and carries out a measurement to determine concentration of the analyte, and a signal processor which evaluates the measurement, the method comprising the following steps:
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using a sensor system to obtain measured values of at least two correlated system parameters of the arrangement; comparing the measured values with limit values stored for each of the system parameters in a storage unit to obtain at least two comparison results; and determining with the signal processor whether a malfunction has occurred in the arrangement based upon the at least two comparison results. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. An arrangement for determining a concentration of an analyte in a body fluid, comprising:
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an interface for taking an analyte from a body fluid into a stream of perfusion liquid in the arrangement; a liquid conduit for routing the stream of perfusion liquid from the interface to a flowmeter chamber; a transport device for transporting the stream of liquid from the interface to the flowmeter chamber; a detector arrangement located in the flowmeter chamber and used to carry out measurements to determine the concentration of the analyte; a signal processor for calculating the concentration of the analyte from results of the measurements by the detector arrangement; a sensor system for obtaining measured values of at least two correlated system parameters; a storage unit; and means for comparing the measured values with limit values stored for each of the system parameters in the storage unit, to obtain a combination of at least two comparison results. - View Dependent Claims (9)
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Specification