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1. (WO1979000115) METHOD FOR EXTRACTING UREA FROM BLOOD WASHING EFFLUENTS OR FROM BLOOD LIQUIDS
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/1979/000115 International Application No.: PCT/DE1978/000016
Publication Date: 08.03.1979 International Filing Date: 05.08.1978
IPC:
A61M 1/16 (2006.01) ,B01D 15/00 (2006.01) ,B01J 20/22 (2006.01)
A HUMAN NECESSITIES
61
MEDICAL OR VETERINARY SCIENCE; HYGIENE
M
DEVICES 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
1
Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
14
Dialysis systems; Artificial kidneys; Blood oxygenators
16
with membranes
B PERFORMING OPERATIONS; TRANSPORTING
01
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
D
SEPARATION
15
Separating processes involving the treatment of liquids with solid sorbents; Apparatus therefor
B PERFORMING OPERATIONS; TRANSPORTING
01
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
J
CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS, COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
20
Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
22
comprising organic material
Applicants:
Inventors:
Priority Data:
770970330.08.1977SE
Title (EN) METHOD FOR EXTRACTING UREA FROM BLOOD WASHING EFFLUENTS OR FROM BLOOD LIQUIDS
(FR) PROCEDE D"EXTRACTION DE L"UREE DES EFFLUENTS DE LAVAGE DU SANG OU DES LIQUIDES SANGUINS
Abstract:
(EN) Method for extracting urea from blood washing effluents or from blood liquids, whereby the liquids are treated with a solid organic material which is then separated therefrom, said method utilizing as organic material at least a compound which comprises at least an aldehyd group per molecule, in which the aldehyd groups are activated or masked at the intramolecular or intermolecular scale by a substituant bearing a proton, i.e., as applicable, -COOH, -CHO or -SO3H. The method is applicable to dialysis or ultrafiltration with semi-permeable membranes and allows a rapid and significant elimination of urea, while using a relatively small amount of organic material, without producing harmful substances.
(FR) Procede d"extraction de l"uree contenue dans les effluents de lavage du sang ou dans les liquides sanguins, selon lequel ces liquides sont traites a l"aide d"une substance organique solide qui est ensuite separee des liquides, ce procede utilisant comme substance organique au moins un compose possedant au minimum un groupe aldehyde par molecule, compose dans lequel les groupes aldehydes sont actives ou masques a l"echelle intra ou intermoleculaire par un substituant portant un proton, a savoir, selon le cas, -COOH, -CH0 ou -SO3H. Le procede est applicable a la dialyse ou a l"ultrafiltration a l"aide de membranes semipermeables et permet une elimination rapide et importante de l"uree en utilisant une quantite relativement faible de substance organique, sans engendrer de substances dangereuses pour l"organisme.
Designated States:
Publication Language: German (DE)
Filing Language: German (DE)