EP 1019179 A1 20000719 - GELATINE MEMBRANE FILTERS AND METHOD FOR PRODUCING THE SAME
Title (en)
GELATINE MEMBRANE FILTERS AND METHOD FOR PRODUCING THE SAME
Title (de)
GELATINEMEMBRANFILETER UND VERFAHREN ZU IHRER HERSTELLUNG
Title (fr)
FILTRES A DIAPHRAGME EN GELATINE ET LEUR PROCEDE DE PRODUCTION
Publication
Application
Priority
- DE 19750215 A 19971113
- EP 9807118 W 19981107
Abstract (en)
[origin: DE19750215C1] The invention relates to gelatine membrane filters for collecting micro-organisms from gases and obtaining a higher proportion of micro-organisms capable of living on said filters, and to a method for producing the same. To this end, the inventive gelatine membrane filters contain osmoprotective substances which are added either to the membrane attraction solution or to a first setting bath. The inventive gelatine membrane filters are used in the pharmaceutical, biotechnology and food industries, in environmental protection, waste management and in medical devices for determining the bacterial count in media. They can be used in conjunction with an apparatus for collecting airborne bacteria for example, for collecting bacteria, viruses, yeast and fungi in order to determine the concentration of these micro-organisms in rooms.
IPC 1-7
IPC 8 full level
B01D 67/00 (2006.01); B01D 69/00 (2006.01); B01D 69/14 (2006.01); B01D 71/74 (2006.01); C12M 1/26 (2006.01); G01N 1/22 (2006.01)
CPC (source: EP US)
B01D 69/1411 (2022.08 - EP US); B01D 71/74 (2013.01 - EP); G01N 1/2205 (2013.01 - EP); G01N 2001/2223 (2013.01 - EP)
Citation (examination)
Prospekt "Laborfilter, Mikrobiologie, Elektrophorese" Seite 14, Sartorius GmbH 1984
Designated contracting state (EPC)
FR GB IT
DOCDB simple family (publication)
DE 19750215 C1 19990204; EP 1019179 A1 20000719; JP 2001523549 A 20011127; WO 9925465 A1 19990527
DOCDB simple family (application)
DE 19750215 A 19971113; EP 9807118 W 19981107; EP 98955551 A 19981107; JP 2000520893 A 19981107