Surgery – Means for introducing or removing material from body for... – Material introduced into and removed from body through...
Patent
1992-01-14
1993-03-23
Pellegrino, Stephen C.
Surgery
Means for introducing or removing material from body for...
Material introduced into and removed from body through...
128632, 128637, 128692, 128898, 128633, A61M 3100
Patent
active
051959631
ABSTRACT:
A method for determining the concentration of a constituent of blood employing a sensor in or near a catheter in a blood vessel for producing a signal related to the concentration of the constituent of blood is disclosed. The improvement comprises obtaining the signal while at least one of the following is present in the blood vessel: (1) an added vasodilator component and/or vasodilation promotor in an amount effective to reduce the vasoconstriction caused by the presence of the catheter in the blood vessel and (2) an added platelet/white cell inhibitor component and/or a platelet/white cell deactivation promotor in an amount effective to reduce the platelet and/or white cell activation caused by the presence of the catheter in the blood vessel.
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Harker Laurence A.
Yafuso Masao
Griswold Gary L.
Hulse Dale E.
Kirn Walter N.
Minnesota Mining and Manufacturing Company
Pellegrino Stephen C.
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