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1. WO1997015380 - EXTRA-LUMENAL CROSSFLOW PLASMAPHERESIS DEVICES

Publication Number WO/1997/015380
Publication Date 01.05.1997
International Application No. PCT/US1996/016944
International Filing Date 23.10.1996
Chapter 2 Demand Filed 22.05.1997
IPC
A61M 1/34 2006.01
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
1Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
34Filtering material out of the blood by passing it through a membrane, i.e. hemofiltration, diafiltration
B01D 61/18 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
61Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
14Ultrafiltration; Microfiltration
18Apparatus therefor
B01D 63/02 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
63Apparatus in general for separation processes using semi-permeable membranes
02Hollow fibre modules
CPC
A61M 1/3482
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY
1Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
34Filtering material out of the blood by passing it through a membrane, i.e. haemofiltration, diafiltration
3472with treatment of the filtrate
3482by filtrating the filtrate using another cross-flow filter, e.g. a membrane filter
B01D 61/18
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
61Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis, ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
14Ultrafiltration; Microfiltration
18Apparatus therefor
B01D 63/024
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
63Apparatus in general for separation processes using semi-permeable membranes
02Hollow fibre modules
024with a single potted end or U-shaped
Applicants
  • HEMASURE, INC. [US]/[US]
Inventors
  • KESSLER, Stephen
  • WICKRAMASINGHE, Sumith, Ranil
Agents
  • JACOBS, Bruce, F.
Priority Data
60/006,11423.10.1995US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) EXTRA-LUMENAL CROSSFLOW PLASMAPHERESIS DEVICES
(FR) DISPOSITIFS DE PLASMAPHERESE A FLUX TRANSVERSAL EXTRAVASCULAIRE
Abstract
(EN)
Improved devices (1) for blood separations are provided based on the use of hollow fiber membrane arrays (6) in extra-lumenal crossflow filtration. Blood is processed extra-lumenally across an ordered array of microporous hollow fibers (6) to separate cells from plasma. By use of extra-lumenal crossflow filtration with suitably oriented fibers, the separation device is more efficient than existing devices which benefits a patient or donor by reducing extracorporeal volume.
(FR)
Cette invention concerne des dispositifs perfectionnés (1) de séparation des constituants du sang qui font usage d'ensembles (6) de membranes à fibres creuses pour le filtrage à flux transversal extravasculaire. Le sang est traité de façon extravasculaire à travers un ensemble ordonné de fibres creuses (6) microporeuses dans le but de séparer les globules du plasma. Le filtrage à flux transversal extravasculaire effectué au moyen de fibres correctement orientées permet de concevoir un dispositif de séparation plus efficace que les dispositifs existants, particulièrement avantageux pour le patient ou le donneur, du fait de la réduction du volume du dispositif extracorporel.
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