Multi-zoned reaction vessel having pressure-actuatable control means between zones
Determination of the acid-base status of blood
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
ApplicationNo. 269950 filed on 06/30/1994
US Classes:600/317, By fluorescent emission436/136, Molecular oxygen600/322, Determining blood constituent600/368Physical characteristics of blood
ExaminersPrimary: Sykes, Angela D.
Attorney, Agent or Firm
International ClassA61B 005/00
Foreign Application Priority Data1988-12-22 DK
AbstractIn 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.