(19)
(11) EP 2 394 696 A8

(12) CORRECTED EUROPEAN PATENT APPLICATION
Note: Bibliography reflects the latest situation

(15) Correction information:
Corrected version no 1 (W1 A1)

(48) Corrigendum issued on:
22.02.2012 Bulletin 2012/08

(43) Date of publication:
14.12.2011 Bulletin 2011/50

(21) Application number: 10305609.9

(22) Date of filing: 09.06.2010
(51) International Patent Classification (IPC): 
A61N 1/36(2006.01)
 A61N 1/05(2006.01)
(84) Designated Contracting States:
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK SM TR
Designated Extension States:
BA ME RS

(71) Applicants:
  • Centre National de la Recherche Scientifique (CNRS)
    75016 Paris (FR)
  • Université de Bordeaux 1
    33400 Talence (FR)

(72) Inventors:
  • Yvert, Blaise
    33360 Carignan de Berdeaux (FR)
  • Mazzocco, Claire
    33410 Cardan (FR)
  • Rousseau, Lionel
    94170 Le Perreux Sur Marne (FR)
  • Urbanova, Veronika
    54371 Hostinne (CZ)
  • Heim, Matthias
    33000 Bordeaux (FR)
  • Kuhn, Alexander
    33420 Guillac (FR)

(74) Representative: Roussel, Eric Marcel Henri et al
Cabinet Regimbeau Espace Performance Bâtiment K
35769 Saint-Grégoire
35769 Saint-Grégoire (FR)

   


(54) Device to stimulate or record a signal to or from a living tissue


(57) The invention concerns a device to stimulate or record a signal to or from a living tissue, comprising at least one electrically conductive first electrode comprising a zone for application to the living tissue and a conductor for sending or receiving a signal voltage to or from the zone.
According to the invention, the zone for application to the living tissue has a first geometric surface formed of an external porous layer consisting in a second material (M2por) being porous and arranged in such a manner that the first electrode has a standard deviation of intrinsic recording voltage noise NM2por ≤ 0.9 NM2,
wherein NM2 is the standard deviation of the intrinsic recording voltage noise measured with another second comparison electrode being the same as the first electrode but having its zone having the same first geometric surface formed of said second material (M2) being non porous.