DISPOSITIF MEDICAL DE SEPARATION, COLLECTEUR POUR REIN ARTIFICIEL COMPORTANT UN TEL DISPOSITIF ET PROCEDE DE REALISATION D'UN REIN ARTIFICIEL A FIBRES CREUSES

• Main Author: ZANE H. GEEL, ROGER B. HORNBY, BENNIE J. LIPPS, CHARLES E. SAVAGE ET PIERRE VANAT
• Format: Patent
• Language: French
• Published: 12.12.1980
• Subjects: DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROMTHE BODY; HUMAN NECESSITIES; HYGIENE; MEDICAL OR VETERINARY SCIENCE; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; SEPARATION; TRANSPORTING

L'INVENTION CONCERNE UN DISPOSITIF MEDICAL DE SEPARATION A FIBRES CREUSES.CE DISPOSITIF COMPREND UNE ENVELOPPE QUI CONTIENT UN FAISCEAU DE FIBRES CREUSES SEMI-PERMEABLES PASSANT DANS UNE CHAMBRE CENTRALE 12 A DIALYSAT ET ABOUTISSANT DANS DES CHAMBRES ESPACEES A SANG. LES EXTREMITES DES FIBRES SONT FIXEES DANS DES PLAQUES A TUBES REALISEES EN RESINE COULEE SUR PLACE ET AYANT CHACUNE LA FORME D'UN CONE QUI EST DIMENSIONNE DE MANIERE QUE LES FIBRES REMPLISSENT CE CONE JUSQU'AU BORD PERIPHERIQUE DE LA SURFACE PLANE EXTREME ET EXTERIEURE DUDIT CONE.DOMAINE D'APPLICATION: REINS ARTIFICIELS, ETC. A hollow fiber medical separatory device of the type including a shell containing a plurality of hollow semi- permeable fibers extending through a central dialysate chamber and terminating in spaced apart blood chambers comprises tubesheets at each end of the fibers having the shape of a frustrum of a cone and sized such that the fibers fill the cone to the peripheral edge at the outer end planar surface of the frustrum; and a multi-functional blood chamber means forming a blood chamber by pressure sealing engagement with the outer tapered surface of the cone and also pressure sealed to the outer end surface of the shell to prevent air ingress into the dialysate chamber during testing or use. The invention also includes a method for potting the frusto-conical tubesheets on the end portions of the fibers while the fibers are positioned in the shell using steps and means to insure centering of the fibers in the cone during centrifugal casting of the resin.