Priming system for ultrafiltration unit

Details Priming system for ultrafiltration unit Priming system for ultrafiltration unit

A - Human Necessities

61

M

182/15.2

A61M 1/14 (2006.01) A61M 1/36 (2006.01)

Patent

CA 1256386

ABSTRACT A system is disclosed for priming an ultrafiltration unit (10) connected to a blood source, without requiring a pump in the blood line. An ultrafiltration unit (10) is provided having an ultrafiltration membrane which separates a blood compartment from an ultrafiltration compartment, a blood inlet port (12), a blood outlet port (14), a second inlet port (16) communicating with the ultrafiltrate compartment, and an ultrafiltrate outlet port (18). A feedback tube (38) connects the blood outlet port (14) to the second input port (16). Priming solution (36) is introduced to the blood inlet port (12) and a vacuum is applied to the ultrafiltrate outlet port (18). The priming solution (36) is drawn through the blood compartment, through the ultrafiltrate compartment, out the ultrafiltrate outlet port, and to drain.

475051

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