| 主权项 |
1. In a procedure which includes circulating a patient's blood as a fluid volume through the patient in an extracorporeal circuit having a first cannula line for fluid flow from the patient and a second cannula line for fluid flow to the patient, a method comprising:
during said procedure adjusting the volume of fluid flow from the first cannula line to the second cannula line by selectively redirecting fluid flow between the first cannula line and the second cannula line into or out of a closed accumulator blood bag of substantially transparent, bio-compatible material, having upper and lower ends, and having a selectively open and closable accumulator inlet line from the first cannula, and a selectively open and closable accumulator outlet line to the second cannula; after said procedure, recovering a substantial volume of whole blood from said extracorporeal circuit, by (a) disconnecting the extracorporeal circuit from the patient; (b) flowing at least most of the fluid remaining in the disconnected circuit, into the accumulator blood bag; (c) fluidly connecting a hemoconcentrator to the blood bag to form a recovery circuit; (d) circulating the fluid between the blood bag and the hemoconcentrator through said recovery circuit to increase the hematocrit concentration; and (e) when the hematocrit concentration of the fluid in the blood bag reaches a desired value, removing the blood bag from the recovery circuit for autologous reinfusion to the patient. |
