Liquid purification or separation – Processes – Liquid/liquid solvent or colloidal extraction or diffusing...
Patent
1994-09-16
1997-11-11
Kim, John
Liquid purification or separation
Processes
Liquid/liquid solvent or colloidal extraction or diffusing...
7386105, 7386107, 7386118, 210 85, 210 961, 210 962, 210 97, 210103, 210739, 210742, 210745, 210746, 210805, 210929, 12866001, 12866002, 12866108, 128691, A61B 5026, A61B 50275, A61B 806
Patent
active
056859899
ABSTRACT:
The measurement of blood flow in a dialysis shunt is obtained by injection of an indicator material into a venous line leading from dialysis equipment to the shunt. The blood flow in an arterial line leading from the shunt at a location downstream of the venous line to the dialysis equipment is monitored by an arterial line sensor for the presence of the indicator material. A detector connected to the sensor provides a dilution curve in response to the presence of the indicator material and the blood flow in the shunt is calculated from the area under the dilution curve. The locations of the arterial and venous lines in the shunt can be reversed to obtain a measurement of blood recirculation from the venous line into the arterial line.
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Krivitski Nikolai M.
MacGibbon David R.
Kim John
Transonic Systems Inc.
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