The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 14, 1993
Filed:
Sep. 11, 1991
Claudio Calzi, Milan, IT;
Gabrio Tancredi, Milan, IT;
Instrumentation Laboratory S.R.L., Milan, IT;
Abstract
In a blood gas analyzer, a measurement liquid, advantageously high-purity water, is fed from a suitable vessel to a diffusion cell in which the measurement liquid is brought into contact via a diffusion membrane with the blood sample to be tested. When the gases dissolved in the sample have diffused through the membrane, the measurement liquid which has remained static in the diffusion cell is propelled into a measuring cell in which the value of an electrical quantity related to the pCO.sub.2 is determined. The measurement liquid is then fed to discharge. In a preferred embodiment, the measurement liquid is discharged into the vessel from which it has been initially withdrawn via passage through means for retaining ionic impurities.