Patent ID: 6458323
Filing Date: 2002-10-01
Classification: A61M

Abstract:
Method for the selective perfusion of fluids through blood vessels, controlled by the pressure in said blood vessels, comprising:introducing a tubing line into a patient's vein in which perfusion is to be performed, said tubing line being open at its proximal end for perfusing fluids through a tissue region, sealing off said vein from the line in the area of its proximal end, performing the following steps while maintaining said vein in the sealed-off condition: (1) pumping said fluid periodically at intervals into said vein via said tubing line and suctioning blood from said vein via said tubing line, said pumping and suctioning intervals being synchronized with the patient's heartbeat, (2) measuring the internal pressure of said vein, and (3) regulating said perfused flow of fluid during pumping in step (1) in such a way that a predefined set value for the internal pressure of said vein is maintained as closely as possible.