US Patent No: 7,765,005

Number of patents in Portfolio can not be more than 2000

Apparatus and process for reducing the susceptability of active implantable medical devices to medical procedures such as magnetic resonance imaging

ALSO PUBLISHED AS: 20050197677
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Abstract

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A feedthrough terminal assembly for an active implantable medical device (AIMD) includes a plurality of leadwires extending from electronic circuitry of the AIMD, and a lossy ferrite inductor through which the leadwires extend in non-conductive relation for increasing the impedance of the leadwires at selected RF frequencies and reducing magnetic flux core saturation of the lossy ferrite inductor through phase cancellation of signals carried by the leadwires. A process is also provided for filtering electromagnetic interference (EMI) in an implanted leadwire extending from an AIMD into body fluids or tissue, wherein the leadwire is subjected to occasional high-power electromagnetic fields such as those produced by medical diagnostic equipment including magnetic resonance imaging.

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Patent Owner(s)

Patent OwnerAddressTotal Patents
GREATBATCH LTD.CLARENCE, NY650
GREATBATCH-SIERRA, INC.CLARENCE, NY1

International Classification(s)

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  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Stevenson, Robert A Canyon Country, CA 270 4731

Cited Art Landscape

Patent Info (Count) # Cites Year
 
BIOPHAN TECHNOLOGIES, INC. (9)
6,506,972 Magnetically shielded conductor 99 2002
6,760,628 Electromagnetic interference immune tissue invasive system 49 2002
6,778,856 Electromagnetic interference immune tissue invasive system 38 2002
6,819,958 Electromagnetic interference immune tissue invasive system 49 2002
6,673,999 Magnetically shielded assembly 94 2002
6,713,671 Magnetically shielded assembly 99 2002
6,768,053 Optical fiber assembly 11 2003
6,765,144 Magnetic resonance imaging coated assembly 103 2003
6,815,609 Nanomagnetic composition 65 2003
 
MEDTRONIC, INC. (5)
5,070,605 Method for making an in-line pacemaker connector system 108 1990
5,735,884 Filtered feedthrough assembly for implantable medical device 71 1994
5,531,003 Fabricating a combination feedthrough/capacitor including a metallized tantalum or niobium pin 75 1994
5,759,197 Protective feedthrough 69 1995
6,349,025 Leak testable capacitive filtered feedthrough for an implantable medical device 39 2000
 
GREATBATCH LTD. (4)
5,650,759 Filtered feedthrough assembly having a mounted chip capacitor for medical implantable devices and method of manufacture therefor 163 1995
6,008,980 Hermetically sealed EMI feedthrough filter capacitor for human implant and other applications 109 1997
5,973,906 Chip capacitors and chip capacitor electromagnetic interference filters 162 1998
6,529,103 Internally grounded feedthrough filter capacitor with improved ground plane design for human implant and other applications 73 2000
 
PACIFIC COAST TECHNOLOGIES, INC. (4)
4,220,813 Terminal for medical instrument 49 1977
4,352,951 Ceramic seals between spaced members such as a terminal pin and a ferrule 60 1977
4,421,947 Polycrystalline insulating material seals between spaced members such as a terminal pin and a ferrule 54 1981
4,456,786 Terminal assembly for heart pacemaker 41 1981
 
AMPHENOL CORPORATION (2)
4,500,159 Filter electrical connector 48 1983
4,741,710 Electrical connector having a monolithic capacitor 49 1986
 
ENDRESS + HAUSER GMBH + CO. KG (2)
5,539,611 Interface connection through an insulating part 34 1992
5,670,063 Method for making an interface connection through an insulating part 22 1996
 
BOSTON SCIENTIFIC SCIMED, INC. (1)
4,952,357 Method of making a polyimide balloon catheter 138 1988
 
DELAWARE CAPITAL FORMATION, INC. (1)
5,825,608 Feed-through filter capacitor assembly 61 1996
 
Dynawave Incorporated (1)
4,737,601 Hermetically sealed electrical feedthrough and method of making same 55 1986
 
EMERSON ELECTRIC CO. (1)
4,362,792 Conductor seal assembly 41 1980
 
GENERAL ELECTRIC COMPANY (1)
4,951,672 Controlled impedance monitoring lead wires 40 1987
 
GREENWALD, HOWARD J. (1)
5,540,959 Process for preparing a coated substrate 50 1995
 
HITACHI, LTD. (1)
4,853,824 Through-type capacitor 15 1988
 
Invivo Research, Inc. (1)
4,991,580 Method of improving the quality of an electrocardiogram obtained from a patient undergoing magnetic resonance imaging 39 1989
 
LATHAM, DANIEL W. (1)
5,406,444 Coated tantalum feedthrough pin 80 1993
 
MAXWELL ELECTRONICS COMPONENTS GROUP, INC. (1)
5,751,539 EMI filter for human implantable heart defibrillators and pacemakers 161 1996
 
Maxwell Laboratories, Inc., Sierra Capacitor Filter Division (1)
5,333,095 Feedthrough filter capacitor assembly for human implant 217 1993
 
MAXWELL TECHNOLOGIES ENERGY PRODUCTS DIVISION (1)
5,905,627 Internally grounded feedthrough filter capacitor 201 1997
 
Mirowski; Mieczyslaw (1)
4,254,775 Implantable defibrillator and package therefor 135 1979
 
MORGAN CRUCIBLE COMPANY PLC, THE (1)
5,440,447 High temperature feed-through system and method for making same 25 1993
 
MRA LABORATORIES, INC., NORTH ADAMS, MA A CORP OF DE (1)
4,247,881 Discoidal monolithic ceramic capacitor 56 1979
 
MURATA MANUFACTURING CO., LTD. (1)
4,314,213 Through-type capacitor 47 1979
 
Needle Industries Limited (1)
4,248,237 Cardiac pacemakers 114 1978
 
Norland Corporation (1)
4,436,093 Cardiac pacer having active notch filter system 22 1982
 
PACESETTER, INC. (1)
5,620,476 Implantable medical device having shielded and filtered feedthrough assembly and methods for making such assembly 85 1995
 
SOUTHWEST RESEARCH INSTITUTE (1)
4,899,760 Noise rejecting detector for biomedical signals 19 1987
 
The Johns Hopkins University (1)
5,217,010 ECG amplifier and cardiac pacemaker for use during magnetic resonance imaging 290 1991
 
The Methodist Hospital System (1)
4,887,609 Apparatus and method for filtering electrocardiograph signals 23 1987
 
The United States of America as represented by the Secretary of the Navy (1)
5,827,997 Metal filaments for electromagnetic interference shielding 85 1994
 
U.S. MICROTEK COMPONENTS CORPORATION, A CORP OF MA (1)
4,424,551 Highly-reliable feed through/filter capacitor and method for making same 130 1982
 
Unitrode Corporation (1)
5,032,692 Process for manufactoring hermetic high temperature filter packages and the products produced thereby 38 1989
 
X2Y ATTENUATORS, LLC (1)
5,142,430 Power line filter and surge protection circuit components and circuits 97 1990

Patent Citation Ranking

Forward Cite Landscape

Patent Info (Count) # Cites Year
 
Cardiac Pacemakers, Inc. (18)
8,049,489 Systems and methods for sensing external magnetic fields in implantable medical devices 2 2006
8,731,685 Implantable lead having a variable coil conductor pitch 0 2008
8,332,050 Medical device lead including a unifilar coil with improved torque transmission capacity and reduced MRI heating 7 2010
8,335,572 Medical device lead including a flared conductive coil 7 2010
8,798,767 MRI conditionally safe lead with multi-layer conductor 0 2010
8,391,994 MRI conditionally safe lead with low-profile multi-layer conductor for longitudinal expansion 10 2010
8,841,019 Implantable medical device including eddy current reducing battery 0 2010
8,380,302 Implantable medical device including eddy current reducing capacitor 0 2010
8,825,181 Lead conductor with pitch and torque control for MRI conditionally safe use 0 2011
8,710,826 Systems and methods for sensing external magnetic fields in implantable medical devices 0 2011
8,688,236 Medical lead coil conductor with spacer element 0 2011
8,401,671 RF rejecting lead 10 2012
8,666,508 Lead with MRI compatible design features 1 2012
8,666,512 Implantable medical device lead including inner coil reverse-wound relative to shocking coil 1 2012
8,744,600 Medical device lead including a unifilar coil with improved torque transmission capacity and reduced MRI heating 0 2012
8,676,351 MRI conditionally safe lead with low-profile multi-layer conductor for longitudinal expansion 0 2013
8,670,840 RF rejecting lead 0 2013
8,825,179 Implantable medical device lead including a unifilar coiled cable 0 2013
 
GREATBATCH LTD. (4)
8,468,664 Process for manufacturing EMI filters utilizing counter-bored capacitors to facilitate solder re-flow 0 2009
8,219,208 Frequency selective passive component networks for active implantable medical devices utilizing an energy dissipating surface 2 2010
8,275,466 Band stop filter employing a capacitor and an inductor tank circuit to enhance MRI compatibility of active medical devices 0 2010
8,483,840 Dual function tuned L-C input trap passive EMI filter component network for an active implantable medical device 0 2010
 
MRI INTERVENTIONS, INC. (4)
8,380,277 Electrical lead for an electronic device such as an implantable device 1 2011
8,433,421 MRI-safe high impedance lead systems 2 2011
8,649,842 Electrical lead for an electronic device such as an implantable device 0 2013
8,688,226 MRI-safe high impedance lead systems 0 2013
 
HERAEUS PRECIOUS METALS GMBH & CO. KG (2)
8,825,162 Ceramic bushing with inductive filter 0 2012
8,742,268 Head part for an implantable medical device 1 2012
 
BOSTON SCIENTIFIC NEUROMODULATION CORPORATION (1)
8,055,351 MRI-safe high impedance lead systems 4 2006
 
MEDTRONIC, INC. (1)
8,478,409 Filtering capacitor feedthrough assembly 0 2011
 
SIEMENS AKTIENGESELLSCHAFT (1)
8,766,632 Magnetic resonance device, reflector array and high-frequency shield system for a magnetic resonance device 0 2011
 
SURGI-VISION, INC. (1)
8,108,028 MRI systems having MRI compatible universal delivery cannulas with cooperating MRI antenna probes and related systems and methods 4 2005
 
THALES (1)
8,527,133 Device for managing piloting tasks carried out by a crew of an aircraft 0 2009
 
The Johns Hopkins University (1)
8,509,876 Implantable MRI compatible stimulation leads and antennas and related systems and methods 0 2005
 
Other [Check patent profile for assignment information] (1)
8,894,914 Method for the manufacture of a cermet-containing bushing 0 2012

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