Device with flexible multilayer system for contacting or...

A - Human Necessities – 61 – N

Patent

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Details

A61N 1/05 (2006.01) A61N 1/40 (2006.01)

Patent

CA 2642879

The object, namely to create a printed circuit board for an implant with improved properties in the electrical contact via the contact points of the conductor tracks on the printed circuit board, is achieved, according to the present invention, by a device for contacting and/or electrostimulation of living tissue cells or nerves, with a printed circuit board having at least one contact point for electrical contact, wherein the printed circuit board comprises a flexible multilayer system with at least one conductor track. According to the invention, the contact points for the conductor track in the multilayer system are galvanically strengthened. For this purpose, a galvanically strengthened layer is grown onto the already preprocessed contact point, for example by a galavanic process. By applying one or more additional material layers onto the contact points of the conductor tracks, the latter are anchored with greater mechanical stability in the printed circuit board and are therefore more reliable in terms of their function.

La présente invention concerne une carte de circuit imprimé pour un implant avec des propriétés améliorées lors de la mise en contact électrique au niveau de points de contact des pistes conductrices sur la carte de circuit imprimé, obtenue grâce à un dispositif de mise en contact et/ou d'électrostimulation de cellules tissulaires ou de nerfs vivants avec une carte de circuit imprimé avec au moins un point de contact pour le contact électrique, la carte de circuit imprimé comprenant un système multicouche flexible avec au moins une piste conductrice. Les points de contact pour la piste conductrice selon l'invention sont renforcés galvaniquement dans le système multicouche. On fait par exemple croître dans ce but une couche galvaniquement renforcée au moyen d'un traitement galvanique sur le point de contact déjà prétraité. L'application d'une ou de plusieurs couches de matériau supplémentaires sur les points de contact des pistes conductrices permet de les ancrer de façon mécaniquement stable dans la carte de circuit imprimé et de fiabiliser leur fonctionnement.

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