Method and device for monitoring a vascular access during a dial

Details Method and device for monitoring a vascular access during a dial Method and device for monitoring a vascular access during a dial

1998-08-05

2000-06-20

Kim, John

Liquid purification or separation

Processes

Including controlling process in response to a sensed condition

210 85, 210 90, 210 97, 210143, 21032165, 210645, 210646, 210739, B01D 6128, B01D 6130, B01D 6132, B01D 6510

Patent

active

060774436

ABSTRACT:
In a method and device for monitoring a vascular access during a dialysis treatment, pressure pulses generated by a balancing device connected in a dialysis fluid inlet line and drain line are monitored in the extracorporeal blood circulation path. The pressure pulses are detected with a pressure sensor in the venous blood line and are analyzed in an analyzer unit. When there is a characteristic change in pressure pulses in the extracorporeal blood circulation path, a faulty venous access is deduced, i.e., the needle has slipped out. Upon a faulty venous access condition, an alarm generator generates an acoustic and/or optical alarm, and the blood flow in the extracorporeal circulation is interrupted.

REFERENCES:
patent: 4501583 (1985-02-01), Troutner

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