The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 19, 1997
Filed:
Mar. 15, 1995
Applicant:
Inventors:
Takeyuki Kawaguchi, Iwakuni, JP;
Hironori Matsuda, Hino, JP;
Masaaki Tsukioka, Iwakuni, JP;
Takahiro Daido, Iwakuni, JP;
Assignee:
Teijin Limited, Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61L / ; A61L / ; B01D / ;
U.S. Cl.
CPC ...
210748 ; 21032169 ; 210764 ; 422-1 ; 422 22 ; 422 23 ;
Abstract
A blood dialyzer having semipermeable polymeric dialyzing membranes is sterilized by impregnating the dialyzing membranes, for example, dialyzing hollow fibers, with an aqueous solution of a .gamma.-ray-absorbent and water-soluble dihydric aliphatic alcohol and irradiating .gamma.-rays to the dialyzing membranes, to prevent the deterioration of the dialyzing membranes and the generation of ultraviolet-ray-absorbent substance in the dialyzing membrane.