Fiber assembly for in vivo plasma separation

Details Fiber assembly for in vivo plasma separation Fiber assembly for in vivo plasma separation

A - Human Necessities

61

M

A61M 1/34 (2006.01) A61M 1/16 (2006.01) B01D 63/02 (2006.01)

Patent

CA 2273105

An improved plasma extraction element for being implanted in a blood vessel for carrying out in vivo plasma separation comprises a elongated catheter (10) having a fan-like assembly of elongated hollow microporous polymeric fibers loops (12, 40, 70, 36) spaced apart along the outer catheter surface. According to the invention the catheter is made from a plurality of elongated arc-shaped segments (14), a helically wrapped elongated polymer ribbon (59), a flexible polymer sheet (76) or a plurality of polymer washers (30).

Elément d'extraction plasmatique amélioré destiné à être implanté dans un vaisseau sanguin pour effectuer une séparation plasmatique in vivo qui comprend un cathéter allongé (10) comportant un ensemble du type éventail formé de boucles (12, 40, 70, 36) de fibres polymères microporeuses creuses espacées le long de la surface externe du cathéter. Le cathéter selon cette invention est constituée d'une pluralité de segments (14) cintrés allongés, d'un ruban (59) polymère allongé à enroulement hélicoïdal, d'une feuille (76) polymère souple ou d'une pluralité de rondelles polymères (30).

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