Title:
HOLLOW-FIBRE MEMBRANE FOR MASS TRANSFER, AND METHOD OF PRODUCTION
Document Type and Number:
WIPO Patent Application WO/2017/167443
Kind Code:
A3
Abstract:
The invention relates to a device for mass transfer between blood and a transfer medium, in particular a gas or gas mixture, comprising a chamber (2) through which blood is able to flow, in which chamber a plurality of mass-permeable hollow fibres (9) of at least one hollow fibre mat are arranged as a wound or folded hollow fibre packet, the hollow fibres in the mat being spaced apart from each other by warp threads, wherein the transfer medium is able to flow through the hollow fibres (9) and the blood is able to flow around said hollow fibres, wherein, in the hollow fibre packet, in the cross-section perpendicular to the direction of the hollow fibres, the density of hollow fibres (9) varies locally, and wherein an area of lower fibre density is produced by: at least one placeholder (13), which is inserted at least axially at the end and surrounded by two layers of hollow fibres (9) interconnected by warp threads and which in particular has a cross-section larger than a hollow fibre (9); and/or by at least one hollow fibre mat wound or folded into a hollow fibre packet, in which mat the hollow fibres are spaced apart from each other by warp threads and from which individual hollow fibres (10, 11, 12) have been removed; and/or by at least one hollow fibre mat wound or folded into a hollow fibre packet, in which mat the hollow fibres are spaced apart from each other by warp threads and in which the distance between adjacent hollow fibres is locally increased, especially in relation to a primarily equidistant distance between the hollow fibres. The invention further relates to a folded or wound hollow fibre packet and to a method for producing said hollow fibre packet.
Inventors:
BORCHARDT RALF (DE)
Application Number:
PCT/EP2017/000377
Publication Date:
November 16, 2017
Filing Date:
March 29, 2017
Export Citation:
Assignee:
ENMODES GMBH (DE)
International Classes:
B01D63/02; A61M1/16
Foreign References:
| DE2825065A1 | 1979-12-13 | |||
| JP2007216175A | 2007-08-30 | |||
| US20150197431A1 | 2015-07-16 | |||
| EP0329980A2 | 1989-08-30 | |||
| EP0862943A1 | 1998-09-09 | |||
| EP1674149A1 | 2006-06-28 | |||
| EP0285812A1 | 1988-10-12 | |||
| EP2042228A1 | 2009-04-01 | |||
| JPH05228345A | 1993-09-07 | |||
| JPS63168004U | 1988-11-01 | |||
| EP2153882A1 | 2010-02-17 |
Attorney, Agent or Firm:
COHAUSZ HANNIG BORKOWSKI WISSGOTT (DE)
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