Method of photometric in vitro determination of the content of oxygen in a blood sample
June 30, 2014. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 3926521 Multi-zoned reaction vessel having pressure-actuatable control means between zones Determination of the acid-base status of blood Multiple-compartment syringe Unified test means for ion determination Cuvette for sampling and analysis Microbubble precursors and apparatus for their production and use Arrangement for fluorescence-optical measurement of concentrations of substances contained in a sample Syringe with selectively exposed and enveloped needle Luminescent layers for use in apparatus for determining the oxygen concentration in gases and the like InventorsAssigneeApplicationNo. 269950 filed on 06/30/1994US Classes:600/317, By fluorescent emission436/136, Molecular oxygen600/322, Determining blood constituent600/368Physical characteristics of bloodExaminersPrimary: Sykes, Angela D.Attorney, Agent or FirmInternational ClassA61B 005/00Foreign Application Priority Data1988-12-22 DKAbstractIn a method of photometric in vitro determination of the content of oxygen in a blood sample, a blood sample is transferred directly from an in vivo locality to an at least partially transparent sample container of a sampling device. The sample container has a measuring chamber containing a luminophor, the luminescence of which is quenched in the presence of oxygen. The luminophor is excited by irradiation with radiation from a radiation source. The luminescence emitted by the excited luminophor is detected by a radiation detector and the oxygen content determined on the basis of the radiation detected by the radiation detector. A sampling device and a system for photometric in vitro determination of oxygen in a blood sample are also described. |
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