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:
Jun. 07, 1988
Filed:
Sep. 08, 1987
Applicant:
Inventor:
Rene Angleraud, Feyzin, FR;
Assignee:
Hospal Industrie, Meyzieu, FR;
Primary Examiner:
Int. Cl.
CPC ...
D02G / ;
U.S. Cl.
CPC ...
428398 ; 21050023 ; 21050043 ; 428376 ;
Abstract
The invention provides semi-permeable hollow fibres of symmetrical type and of homogeneous microporous structure, with a smooth internal surface, which are obtained by cooling a solution of a copolymer of acrylonitrile and an olefinically unsaturated comonomer carrying optionally salified sulphonic acid groups, in a polar organic solvent with an adjuvant, to give a thermally reversible gel, followed by washing, stretching and relaxation treatments. The new hollow fibres have improved haemocompatibility and are useful in treating blood by haemodialysis, ultrafiltration and/or plasmapheresis.