EP 1259633 A1 20021127 - DEVICE AND ELECTRODE ARRANGEMENT FOR ELECTROPHYSIOLOGICAL INVESTIGATIONS
Title (en)
DEVICE AND ELECTRODE ARRANGEMENT FOR ELECTROPHYSIOLOGICAL INVESTIGATIONS
Title (de)
VORRICHTUNG UND ELEKTRODENANORDNUNG FÜR ELEKTROPHYSIOLOGISCHE UNTERSUCHUNGEN
Title (fr)
DISPOSITIF ET SYSTEME D'ELECTRODES DESTINES A DES EXAMENS ELECTROPHYSIOLOGIQUES
Publication
Application
Priority
- DE 10010081 A 20000302
- EP 0100728 W 20010124
Abstract (en)
[origin: DE10010081A1] Apparatus for electro-physiological examination of biological material (11) has a carrier (12) with an array of measurement electrodes (14,15), A vessel (21) has a containment zone (24) to hold the biological material (11) and any necessary culture medium (25). The vessel (21) is placed on the carrier (12) so that the electrodes (14,15) are linked electrically with the sample holding zone (24). A counter electrode (38) measures the signals between it and the measurement electrodes (14,15) or electrically stimulates the biological material. At least one counter electrode (38) is located permanently within the sample holding zone (24). The counter electrode is located at the peripheral wall (22) of the vessel (21), at the cover, or the electrode (38) is on the carrier (12) or integrated into the carrier (12). The counter electrode (38) is produced with the same technology as for the manufacture of the measurement electrodes (14,15). The ground surface of the counter electrode is at least 10<3> times larger than a measurement electrode surface, at 0.1 mm<2> to 1.0 cm<2> and preferably 10-100 mm<2>. The counter electrode (38) has a structured surface on the line of the conductor path, to contact the micro-electrodes, e.g. a half-moon or wedge-shaped surface cover. The counter electrode (38) is directly adjacent to the electrode array. The counter electrode (38) is connected electrically to a connecting surface (41) on the carrier (12), outside the sample holding zone (24).
[origin: DE10010081A1] Apparatus for electro-physiological examination of biological material (11) has a carrier (12) with an array of measurement electrodes (14,15), A vessel (21) has a containment zone (24) to hold the biological material (11) and any necessary culture medium (25). The vessel (21) is placed on the carrier (12) so that the electrodes (14,15) are linked electrically with the sample holding zone (24). A counter electrode (38) measures the signals between it and the measurement electrodes (14,15) or electrically stimulates the biological material. At least one counter electrode (38) is located permanently within the sample holding zone (24). The counter electrode is located at the peripheral wall (22) of the vessel (21), at the cover, or the electrode (38) is on the carrier (12) or integrated into the carrier (12). The counter electrode (38) is produced with the same technology as for the manufacture of the measurement electrodes (14,15). The ground surface of the counter electrode is at least 103> times larger than a measurement electrode surface, at 0.1 mm2> to 1.0 cm2> and preferably 10-100 mm2>. The counter electrode (38) has a structured surface on the line of the conductor path, to contact the micro-electrodes, e.g. a half-moon or wedge-shaped surface cover. The counter electrode (38) is directly adjacent to the electrode array. The counter electrode (38) is connected electrically to a connecting surface (41) on the carrier (12), outside the sample holding zone (24).
IPC 1-7
IPC 8 full level
A61B 5/00 (2006.01); C12M 1/34 (2006.01); G01N 33/487 (2006.01)
CPC (source: EP US)
A61B 5/145 (2013.01 - EP US); G01N 33/4836 (2013.01 - EP US)
Citation (search report)
See references of WO 0164940A1
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR
DOCDB simple family (publication)
DE 10010081 A1 20010913; EP 1259633 A1 20021127; US 2003009112 A1 20030109; WO 0164940 A1 20010907
DOCDB simple family (application)
DE 10010081 A 20000302; EP 0100728 W 20010124; EP 01901195 A 20010124; US 23466402 A 20020830