Biological sampling method

Details Biological sampling method Biological sampling method

2006-08-29

2006-08-29

Hindenburg, Max F. (Department: 3736)

Surgery

Diagnostic testing

Liquid collection

C436S180000

Reexamination Certificate

active

07097623

ABSTRACT:
A method for drawing a biological sample using a suction-discharge device, such as a manual or automatic pipette, built into an automated device or not. A method for detecting the free surface of a biological sample and/or solid, a sample drawing device such as a pipette and a device for detecting the free surface of a biological sample or a solid are also disclosed. This method includes actuating a means causing a pressure variation or an air flow within the suction-discharge device, positioning the lower free end of the device in such a way so that it becomes flush with a free surface of the biological sample, measuring an overpressure within the suction-discharge device, and sampling a quantity of the sample by suction using the device. The invention finds a preferable application in the field of automatic analyzers.

REFERENCES:
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patent: 4846003 (1989-07-01), Marquiss
patent: 5723795 (1998-03-01), Merriam
patent: 6045541 (2000-04-01), Matsumoto et al.
patent: 0 341 438 (1989-11-01), None
patent: 0 571 100 (1993-11-01), None

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