The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 12, 2013
Filed:
Dec. 21, 2009
Thierry Legay, Fontenay les Briis, FR;
Thierry Legay, Fontenay les Briis, FR;
Sorin CRM S.A.S., Clamart Cedex, FR;
Abstract
A generator for an implantable cardiac prosthesis, having a safekeeping mode of operation during an exposure to a magnetic field. The generator is connected to a lead including a first conductor () connected to a distal electrode (), and a second conductor () connected to a proximal electrode (). The generator to which the lead is connected includes a switch that temporarily switches to the potential of the metal housing of the generator (i.e., the ground potential) a first terminal connection () coupled to the external conductor () of the lead, and connects to the electronic circuit of detection/stimulation a second terminal connection () coupled to the internal conductor () of the lead. The first conductor temporarily acts as a shield for the second conductor for the duration of an MRI examination ensuring protection against the deleterious effects of exposure of the lead to the magnetic field generated by the MRI apparatus, notably heating of the electrodes due to induced currents in the conductors.