HF-Filter für eine aktive implantierbare medizinische Vorrichtung (AIMD) zur Handhabung von hoher HF-Leistung in einer zugehörigen implantierten Leitung aus einem externen HF-Feld

Details

Veröffentlichungs-Nr.

EP2495014

Aktenzeichen

EP12157697

Anmeldetag

1. März 2012

Veröffentlichung

22. November 2017

Erteilung

22. November 2017

Rechtsraum

EP

IPC

A61N1/37

Abstract

An RF filter for an active medical device (AMD), for handling RF power induced in an associated lead from an external RF field at a selected MRI frequency or range frequencies includes a capacitor having a capacitance of between 100 and 10,000 picofarads, and a temperature stable dielectric having a dielectric constant of 200 or less and a temperature coefficient of capacitance (TCC) within the range of plus 400 to minus 7112 parts per million per degree centigrade. The capacitor's dielectric loss tangent in ohms is less than five percent of the capacitor's equivalent series resistance (ESR) at the selected MRI RF frequency or range of frequencies.

Anmelder

Firma

Greatbatch Ltd.

Land

🇺🇸 USA

Fachgebiete