Surgery – Blood drawn and replaced or treated and returned to body
Patent
1995-06-06
1997-10-14
Rimell, Sam
Surgery
Blood drawn and replaced or treated and returned to body
604 65, 604 67, A61M 100
Patent
active
056766459
ABSTRACT:
A method and apparatus for maximizing the total amount of blood processed during an apheresis procedure by optimizing the concentration of anticoagulant in a donor/patient and the associated extracorporeal tubing set is provided. A simplified model of an anticoagulant accumulation in a donor/patient's body is used to calculate an optimal anticoagulant infusion rate profile to the donor/patient during a blood processing procedure. A maximum acceptable anticoagulant concentration in the donor/patient acts as an upper limit on the rate at which anticoagulant may be infused to the donor/patient using the optimized infusion rate profile. A minimum acceptable anticoagulant level acts as a lower limit in optimally controlling the anticoagulant concentration in the extracorporeal tubing set. Both the maximum acceptable anticoagulant level in the donor/patient and the minimum acceptable anticoagulant level in the extracorporeal tubing set may be customized for a specific donor/patient thereby allowing the optimized infusion rate profile and the extracorporeal tubing set anticoagulant concentration to be customized for the specific patient.
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Dumont Larry Joe
Langley Robert W.
Van Waeg Geert
Cobe Laboratories, Inc.
O'Connor Edna M.
Racunas Robert V.
Rimell Sam
Winsor Bruce R.
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