Method and device for reversing lines in the procedure of...

Surgery – Blood drawn and replaced or treated and returned to body – Constituent removed from blood and remainder returned to body

Reexamination Certificate

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C251S004000, C251S231000

Reexamination Certificate

active

07815588

ABSTRACT:
A device and method for selectively controlling the direction of blood flow to and from the patient during hemodialysis is provided. Specifically, the device and method reverse flow between four fluid lines without changing connections between a patient and a hemodialysis machine. Advantageously, the blood is subjected to minimal stresses as it passes through the switching device.

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