Dialyzer and method for manufacturing the same

Liquid purification or separation – Casing divided by membrane into sections having inlet – Cylindrical membrane

Reexamination Certificate

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C210S321790, C210S500230, C210S321710, C210S321610

Reexamination Certificate

active

07094348

ABSTRACT:
A dialyzer in which a nearly cylindrical case is provided therein with a hollow fiber bundle made of a plurality of hollow fiber membranes, a blood flow path formed by lumens of the hollow fiber membranes, a dialyzate flow path formed by a space between the inner wall of the case and the hollow fiber membranes and a cylindrical heat-shrinkable tube provided on the outside of the hollow fiber bundle and at least a part of which can be shrunk by heating, and a method for manufacturing the dialyzer.

REFERENCES:
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patent: 0 701 826 (1996-03-01), None
patent: 2 267 138 (1975-11-01), None
patent: 08-168525 (1996-07-01), None
patent: 08-192031 (1996-07-01), None
patent: 11-000394 (1999-01-01), None
patent: 11-009684 (1999-01-01), None
patent: 2961481 (1999-08-01), None
patent: 11-319079 (1999-11-01), None
patent: 11-319080 (1999-11-01), None
patent: 98/22161 (1998-05-01), None
English translation copy of French Patent No. 2,267,138.
Schmidt, M., et al.; “Backfiltration in Hemodialyzers with Highly Permeable Membranes: An in vitro and in vivo Investigation”;Blood Purification 2; pp. 108-114; 1984.
Gejyo, Fumitake, et al.; “β2-microglobulin: A new form of amyloid protein associated with chronic hemodialysis”;Kidney International; vol. 30, pp. 385-390; 1986.
Dellanna, F., et al.; “Internal filtration—advantage in haemodialysis?”;Nephrol Dial Transplant 11, Suppl. 2; pp. 83-86; 1996.

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