Surgery – Blood drawn and replaced or treated and returned to body
Patent
1990-08-20
1993-09-07
Green, Randall L.
Surgery
Blood drawn and replaced or treated and returned to body
604 6, 422 44, A61M 3700, A61M 114
Patent
active
052423824
ABSTRACT:
Continuous or periodic measurement of blood gas parameters and blood pressure by separating plasma from blood and then using that plasma to measure the blood parameters. Plasma is separated from blood in vivo with a filter implanted within a blood vessel, and the separated plasma is removed to extracorporeal apparatus for analyzing blood gas parameters or measuring blood pressure. The use of plasma is equivalent to the use of whole blood for measuring blood gas parameters as the gas parameters reside in the plasma, not in the separated blood cells which remain in the blood vessel. This arrangement permits the continuous measurement of blood gases without removal of blood from the body.
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Atkin John
Cooper Tommy G.
Gorsuch Reynolds G. F.
Clarke R.
Green Randall L.
Healthdyne, Inc.
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