Blood gas controls composition, method and apparatus
AssigneeOrtho Diagnostics, Inc.
InventorsMichael K. Hoskins, Gary D. Christiansen
Life of this patent
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Abstract
A hermetically sealed ampoule containing blood gas control fluid is provided wherein the fluid occupies the entire ampoule with no appreciable head space. The ampoule is provided with a plunger-like seal adapted to be directed against the contents of the ampoule and a pierceable seal through which may extend a hollow needle to act as a conduit for the contents upon expulsion from the ampoule. A syringe is also provided for expelling the contents from the ampoule.
Claims18
A device comprising a hermetically sealed, gas-impermeable container containing a blood gas control liquid and having essentially no bubbles or gaseous head space, said liquid consists essentially of
- a. dissolved carbon dioxide in equilibrium with a water soluble carbonate or bicarbonate salt source in solution
- b. dissolved oxygen in equilibrium with a water soluble or water suspendible peroxide source in solution
- c. a water-soluble pH butter
- d. water
- e. said liquid having a pH of 7.0-7.7, a pO.sub.2 of from 30-170 mm. Hg, and a pCO.sub.2 of from 10-80 mm. Hg.
A blood gas control composition which consists essentially of
- (a) water
- (b) dissolved CO.sub.2 in equilibrium with a water-soluble carbonate or bicarbonate salt source in solution
- (c) dissolved oxygen in equilibrium with a water soluble or water suspendible peroxide source in solution
- (d) a water soluble pH buffer
- (e) said composition having a pH of 7.0-7.7, a pO.sub.2 of from 30 to 170 mm Hg, and a pCO.sub.2 of from 10 to 80 mm Hg
Dependencies are inferred from the claim text.