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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.:

US 8903505 B1

PDFFull Text
Date of Patent:
Dec. 02, 2014

Filed:

Oct. 19, 2011

Implantable lead bandstop filter employing an inductive coil with parasitic capacitance to enhance mri compatibility of active medical devices

Applicants:

Robert A. Stevenson, Canyon Country, CA (US);

Henry R. Halperin, Pikesville, MD (US);

Albert C. Lardo, Baldwin, MD (US);

Warren S. Dabney, Orchard Park, NY (US);

Kishore Kumar Kondabatni, Williamsville, NY (US);

Christine A. Frysz, Orchard Park, NY (US);

Robert Shawn Johnson, North Tonawanda, NY (US);

Holly Noelle Moschiano, Lancaster, NY (US);

Barry C. Muffoletto, Alden, NY (US);

Inventors:

Robert A. Stevenson, Canyon Country, CA (US);

Henry R. Halperin, Pikesville, MD (US);

Albert C. Lardo, Baldwin, MD (US);

Warren S. Dabney, Orchard Park, NY (US);

Kishore Kumar Kondabatni, Williamsville, NY (US);

Christine A. Frysz, Orchard Park, NY (US);

Robert Shawn Johnson, North Tonawanda, NY (US);

Holly Noelle Moschiano, Lancaster, NY (US);

Barry C. Muffoletto, Alden, NY (US);

Assignee:

Greatbatch Ltd., Clarence, NY (US);

Attorney:

Michael F. Scalise

Primary Examiner:

Christopher D Koharski

Assistant Examiner:

Michael D Abreu

Int. Cl.
CPC ...
A61B 5/055 (2006.01); A61N 1/05 (2006.01); A61B 18/14 (2006.01); H03H 1/00 (2006.01); A61N 1/37 (2006.01); A61B 19/00 (2006.01); A61B 18/00 (2006.01); H03H 7/01 (2006.01); A61N 1/08 (2006.01);
U.S. Cl.
CPC ...
A61N 1/05 (2013.01); H03H 2001/005 (2013.01); A61N 1/3718 (2013.01); A61B 2019/5236 (2013.01); A61N 1/0551 (2013.01); A61B 18/1492 (2013.01); H03H 2001/0042 (2013.01); A61B 2018/00839 (2013.01); H03H 2007/013 (2013.01); H03H 7/1766 (2013.01); A61N 2001/086 (2013.01); A61N 1/056 (2013.01); H03H 1/0007 (2013.01);
Abstract

A medical lead system includes at least one bandstop filter for attenuating current flow through the lead across a range of frequencies. The bandstop filter has an overall circuit Q wherein the resultant 3 dB bandwidth is at least 10 kHz. The values of capacitance and inductance of the bandstop filter are selected such that the bandstop filter is resonant at a selected center frequency or range of frequencies. Preferably, the bandstop filter has an overall circuit Q wherein the resultant 10 dB bandwidth is at least 10 kHz. Such bandstop filters are backwards compatible with known implantable deployment systems and extraction systems.

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