Measuring apparatus and a measuring method for the determination of parameters of medical fluids
First Claim
1. A measuring apparatus for the determination of parameters of medical fluids with a measured region which comprises the following:
- a measuring chamber device for receiving a disposable cassette with at least one measuring chamber through which the fluid to be measured is guided;
at least one measuring element for measuring a measured value whose value depends on the extent of the measuring chamber in a measuring device and allows the determination of the parameter, or of a value being in a fixed relationship thereto, with a known extent of the measuring chamber, characterised by at least one distance sensor unit (24) which is arranged relative to the to the measuring chamber device such that the measured distance (23) changes relative to the extent (25) of the measuring chamber (15).
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Accused Products
Abstract
The invention relates to a measuring apparatus for the determination of parameters of medical fluids with a measured region which comprises a measuring chamber device for receiving a disposable cassette with at least one measuring chamber through which the fluid to be measured is guided and at least one measuring element for measuring a measured value whose value depends on the extent of the measuring chamber in a measuring direction and allows the determination of the parameter to be determined, or of a value being in a fixed relationship thereto, with a known extent of the measuring chamber. In accordance with the invention, a distance sensor unit is provided which is arranged relative to the to the measuring chamber such that the measured distance changes relative to the extent of the measuring chamber. The invention furthermore relates to a method for the determination of parameters of medical fluids which can be carried out with the measuring apparatus in accordance with the invention and to a method for the calibration of the measuring apparatus in accordance with the invention.
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Citations
19 Claims
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1. A measuring apparatus for the determination of parameters of medical fluids with a measured region which comprises the following:
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a measuring chamber device for receiving a disposable cassette with at least one measuring chamber through which the fluid to be measured is guided;
at least one measuring element for measuring a measured value whose value depends on the extent of the measuring chamber in a measuring device and allows the determination of the parameter, or of a value being in a fixed relationship thereto, with a known extent of the measuring chamber, characterised by at least one distance sensor unit (24) which is arranged relative to the to the measuring chamber device such that the measured distance (23) changes relative to the extent (25) of the measuring chamber (15). - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 17, 18, 19)
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10. A method for the determination of parameters of medical fluids, with which
the fluid is led through a measuring chamber; -
a measured value is measured whose value depends on the extent of the measuring chamber in a measuring direction and allows the determination of the parameter or of a value being in a fixed relationship thereto with a known extent of the measuring chamber, characterised in that with the measurement of the measured value, a value being in a fixed relationship with the extent (25) of the measuring chamber (15) in the measuring direction, or the change in the extent, is additionally determined. - View Dependent Claims (11, 12, 13, 14, 15, 16)
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Specification