Method and capillary tube for treating blood sample
AssigneeRadiometer A/S
InventorOle Siggaard-Andersen
Life of this patent
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Abstract
Deoxygenation of a blood sample prior to determination of carbon monoxide hemoglobin is performed in a capillary tube containing a dry reducing agent. Ready for use capillary tubes having long storage life contain dry reducing agent and are sealed at both ends. Preferred capillary tubes contain mixture of reducing agent, pH buffer and anticoagulating agent present as a dry material on the interior tube wall.
Claims12
A method of deoxygenating a blood sample, comprising breaking the seal of an air-tightly sealed capillary tube containing a dry reducing agent for the oxygen content of the blood, introducing the blood sample into the unsealed capillary tube containing said dry reducing agent, and allowing the action of the reducing agent on the blood sample.
A capillary tube for use in a method for deoxygenating blood, comprising an air-tightly sealed capillary tube containing a dry reducing agent for reducing the oxygen content of blood in a sufficient amount for reducing the oxygen content of the volume of blood which can be contained in the capillary tube.
Dependencies are inferred from the claim text.