MEASURING INSTRUMENT FOR THE DETERMINATION OF THE PARTIAL PRESSURE OF OXYGEN AND CARBON DIOXIDE AND OF THE pH VALUE OF A BLOOD SAMPLE
First Claim
2. A measuring instrument according to claim 5, comprising a mixing hopper insertable in the said conical filler connection of the measuring vessel.
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Accused Products
Abstract
A measuring instrument and system for the determination of the partial oxygen and carbon dioxide pressures and of the pH value of a blood test sample having a thermostatized measuring vessel with a measuring capillary tube inserted therein to contain the blood test sample with three receiving bores in the measuring vessel and three measuring electrode units one of which being oxygen sensitive with the second carbon dioxide sensitive and the third being pH sensitive. Each of the measuring sensors are in contact with the said blood test sample and a measuring and recording device for electrode conductively connected with one of the measuring electrode units with a conical receiving bore provided on the measuring vessel. Three control bores terminate in the conical receiving bore and a switch element is inserted in the receiving bore to register with the control bores in three different positions with a pumping device providing for alternate suction and delivery strokes and a pipeline connects the pumping device with the control bores. A gas intake pipe connects the pressure tank with the second control bore and a suction pump and a suction pipe connect the latter with the third control bore and a conical filler connection is mounted on the measuring vessel and is connected with the extremity of the measuring capillary tube opposite the switch member.
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Citations
2 Claims
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2. A measuring instrument according to claim 5, comprising a mixing hopper insertable in the said conical filler connection of the measuring vessel.
Specification
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Current AssigneeKarl Harnoncourt
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Original AssigneeKarl Harnoncourt
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InventorsHarnoncourt, Karl
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Primary Examiner(s)Lynch, Michael J.
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Application NumberUS04/818,288Time in Patent Office1,015 DaysField of Search324/30,29 204/1T,195 23/230,253US Class Current324/438CPC Class CodesG01N 33/492 Determining multiple analytesG01N 33/4925 measuring blood gas content...G01N 7/14 by allowing the material to...
