Fluid separation system

Details Fluid separation system Fluid separation system

1997-04-14

2000-08-08

Weiss, John G.

Surgery

Blood drawn and replaced or treated and returned to body

604 5, 604 6, 494 10, 494 28, 210767, 210782, A61M 3700, B04B 1500, B04B 1100, B01D 3700

Patent

active

060994916

ABSTRACT:
A system for separating a fluid having heavier and lighter components. The system includes a rotor having a rigid mounting member and an elastic diaphragm attached to the mounting member, the diaphragm defining a chamber. The system also includes a chuck for holding the rigid mounting member of the rotor and for spinning the rotor around an axis. The pressure of a control fluid, preferably a control gas, disposed adjacent the rotor's diaphragm is varied in order to control the volume of the rotor. Pressurizing the control gas causes fluid to flow out of the rotor; applying a vacuum to the diaphragm draws fluid into the rotor.

REFERENCES:
patent: 5039401 (1991-08-01), Columbus et al.
patent: 5387174 (1995-02-01), Rochat
patent: 5733253 (1998-03-01), Headley et al.

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