Surround shroud connector and electrode housings for a...

A - Human Necessities – 61 – N

Patent

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A61N 1/375 (2006.01) A61B 5/00 (2006.01) A61B 5/042 (2006.01)

Patent

CA 2426951

The invention discloses a subcutaneous electrode array or SEA for use in medical devices. The arrangement provides an enhanced capability for detecting and gathering electrical cardiac signals via the array of relatively closely spaced subcutaneous electrodes. Further, switching circuits, signal processors and memory to process electric cardiac signals are implemented to enable a leadless orientation-insensitive SEA scheme for receiving the electrical signal from the heart. The SEA is distributed over the perimeter of the implanted medical device and includes a non-conductive surround shroud of biocompatible material. The surround shroud is placed around the periphery of the case of the implanted medical device. Various configurations of recesses, each of which contain individual electrodes, are implemented to provide an enhanced signal to noise ratio for improved signal quality.

La présente invention concerne un réseau d'électrodes sous cutanées (RES) destiné à des dispositifs médicaux. Cet agencement permet d'améliorer la détection et le recueil des signaux électriques cardiaques via ce réseau d'électrodes sous cutanées relativement dense. Par ailleurs, des circuits de commutation, des processeurs de signaux et une mémoire destinés à traiter les signaux électriques cardiaques sont mis en oeuvre de façon à pouvoir obtenir un schéma de RES sans dérivation insensible à l'orientation afin de recevoir le signal électrique en provenance du coeur. Ce RES est réparti sur le périmètre du dispositif médical implanté et comprend un recouvrement circulaire non conducteur en matériau biocompatible. Ce recouvrement circulaire est placé sur la périphérie du cas du dispositif médical implanté. Divers agencements de rainures, chacune d'elles contenant des électrodes individuelles, sont réalisées pour améliorer le rapport signal/bruit et par là même, la qualité du signal.

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