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:
Jun. 30, 2015
Filed:
Mar. 26, 2015
Greatbatch Ltd., Clarence, NY (US);
Robert A. Stevenson, Canyon Country, CA (US);
Robert Shawn Johnson, North Tonawanda, NY (US);
Kishore Kumar Kondabatni, Arcadia, CA (US);
Joseph E. Spaulding, Portage, MI (US);
Dominick J. Frustaci, Williamsville, NY (US);
Warren S. Dabney, Lake Oswego, OR (US);
Holly Noelle Moschiano, Lancaster, NY (US);
Greatbatch Ltd., Clarence, NY (US);
Abstract
A composite RF current attenuator for a medical lead includes a conductor having a distal electrode contactable to biological cells, a bandstop filter in series with the lead conductor for attenuating RF currents flow through the lead conductor at a selected center frequency or across a range of frequencies about the center frequency, and a lowpass filter in series with the bandstop filter and forming a portion of the lead conductor. The bandstop filter has a capacitance in parallel with a first inductance. In a preferred form, the lowpass filter includes a second inductance in series with the bandstop filter, wherein the values of capacitance and inductances for the composite RF current attenuator are selected such that it attenuates MRI-induced RF current flow in an MRI environment.