Surface treatment for blood dialysis cartridges

Details Surface treatment for blood dialysis cartridges Surface treatment for blood dialysis cartridges

1978-05-04

1980-07-08

Cannon, J. C.

Adhesive bonding and miscellaneous chemical manufacture

Delaminating processes adapted for specified product

Delaminating in preparation for post processing recycling step

156645, 156668, 210321A, 210321B, 427 2, 427 29D, 428376, 428398, 428409, B01D 1300, B01D 3916, B01K 100

Patent

active

042116023

ABSTRACT:
In blood dialyzers in which hollow fibers are potted in plastic tube sheets and the tube sheets are then cut to form a manifold surface providing access to the interior of the hollow fibers, blood clotting at the manifold surface is greatly reduced by treating the surface to increase the radii of the microscopic sharp edges of the fiber ends which are produced by the cutting process. The smoothing of the fiber ends can be accomplished by momentary heating, flame polishing, etching, or coating of the manifold surface with a varnish.

REFERENCES:
patent: 2651811 (1953-09-01), Coney
patent: 2972779 (1961-02-01), Cowley
patent: 3662178 (1972-05-01), Caputi et al.
patent: 3713921 (1973-01-01), Fleischer et al.
patent: 3802972 (1974-04-01), Fleischer et al.

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