Device for analyzing a liquid sample
First Claim
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1. A device for analyzing a sample of a liquid comprising:
- a compartmented casing comprising an inlet, a container for at least one dose of a reagent of diluent, a chamber for calibration of a calibrated quantity obtained from the sample, and a chamber for mixing at least the calibrated quantity and the reagent of diluent, such that when said casing interacts with a centrifuging apparatus centrifugal force causes contents of the casing to circulate within the casing; and
a cartridge including an inlet for directly introducing a sample into the cartridge from a source, a receptacle for collecting the introduced sample, means for metering the collected sample, said means for metering connected to the receptacle via a capillary duct extending into the casing, means for irreversibly clipping the cartridge to said casing, and an outlet passage communicating with the casing inlet when said cartridge is irreversibly clipped to said casing to pass a metered quantity from said cartridge to said casing, wherein said outlet of the cartridge is positioned in a vicinity of, but separate from, said cartridge inlet.
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Abstract
A device for analyzing a liquid sample such as blood includes a cartridge portion and a casing portion. The cartridge includes an inlet for directly receiving a sample. The cartridge is then irreversibly clipped to the casing so that an inlet of the casing is in communication with an outlet of the cartridge. The sample is then mixed in the casing with a diluent and/or reagent by using a centrifuge, and measurements are taken. The device allows a sample to be taken directly into the cartridge, and restricts employment of the device to a single use.
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Citations
7 Claims
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1. A device for analyzing a sample of a liquid comprising:
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a compartmented casing comprising an inlet, a container for at least one dose of a reagent of diluent, a chamber for calibration of a calibrated quantity obtained from the sample, and a chamber for mixing at least the calibrated quantity and the reagent of diluent, such that when said casing interacts with a centrifuging apparatus centrifugal force causes contents of the casing to circulate within the casing; and a cartridge including an inlet for directly introducing a sample into the cartridge from a source, a receptacle for collecting the introduced sample, means for metering the collected sample, said means for metering connected to the receptacle via a capillary duct extending into the casing, means for irreversibly clipping the cartridge to said casing, and an outlet passage communicating with the casing inlet when said cartridge is irreversibly clipped to said casing to pass a metered quantity from said cartridge to said casing, wherein said outlet of the cartridge is positioned in a vicinity of, but separate from, said cartridge inlet. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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Specification