Greatbatch Ltd.

Pacesetter, Inc.

Siemens-pacesetter, Inc.

Buehl E Truex

Robert A Stevenson

Christine A Frysz

Richard L Brendel

Warren S Dabney

Henry R Halperin

Albert Clark Lardo

Robert Shawn Johnson

Jason Woods

Christopher Michael Williams

Scott Brainard

John E Roberts

Scott Robert Gibson

Keith W Seitz

Barry C Muffoletto

Thomas Marzano

Dominick J Frustaci

William C Thiebolt

William H Stutz, Jr

Alvin H Weinberg

Rodney J Hawkins

Jose Luis Lorente-Adame

Wisit Lim

Sheldon Williams

Holly Noelle Moschiano

Kishore Kumar Kondabatni

Clyde K Nason

Russell Klehn

Christopher J Fleck

Jeff Fleigle

Geddes Frank Tyers

Anna Barlow

Edward G Rourke

Mark W Kroll

Sheldon B Moberg

John W Poore

Yelena Nabutovsky

Kevin L Morgan

Annapurna Karicherla

Anders Bjorling

Xiaohong Tang

Steven W Winn

Haytham Hussein

Joseph E Spaulding

Scott W Kelley

Benedict L Gomperz

Dion F Davis

Donald H Hickel, Jr

Jose Luis Lorente Adame

Haythem Hussein

Adam Klonecke

Alfred D Acken, Deceased

William Thiebolt, Iii

Donald Hickel

Waren S Dabney

An EMI filtered terminal assembly including at least one conductive terminal pin, a feedthrough capacitor, and a counter-bore associated with a passageway through the capacitor is described. Preferably, the feedthrough capacitor having counter-drilled or counter-bored holes on its top side is first bonded to a hermetic insulator. The counter-drilled or counter-bore holes in the capacitor provide greater volume for the electro-mechanical attachment between the capacitor and the terminal pin or lead wire, permitting robotic dispensing of, for example, thermal-setting conductive adhesive.

EMI filters utilizing counter-bored capacitors to facilitate solder re-flow

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.

RF filter for an active medical device (AMD) for handling high RF power induced in an associated implanted lead from an external RF field

An elevated feedthrough is attachable to a top or a side of an active implantable medical device. The feedthrough includes a conductive ferrule and a dielectric substrate. The dielectric substrate is defined as comprising a body fluid side and a device side disposed within the conductive ferrule. The dielectric substrate includes a body fluid side elevated portion generally raised above the conductive ferrule. At least one via hole is disposed through the dielectric substrate from the body fluid side to the device side. A conductive fill is disposed within the at least one via hole forming a hermetic seal and electrically conductive between the body fluid side and the device side. A leadwire connection feature is on the body fluid side electrically coupled to the conductive fill and disposed adjacent to the elevated portion of the dielectric substrate.

Elevated hermetic feedthrough insulator adapted for side attachment of electrical conductors on the body fluid side of an active implantable medical device

Capacitor for an active implantable medical device (AIMD) for handling high RF power induced in an implanted lead from an external RF field

A transient voltage/surge current protection system is provided for electronic circuits associated with implanted leads. In particular, a transient voltage suppressor such as a diode, a zener diode, a transorb, a surge protector, varistor components or the like, is placed in parallel with the electronic circuits to thereby divert harmful surge current and bypass the electronic circuit during an external defibrillation event or during an applied therapeutic shock, such as from an ICD.

Transient voltage/current protection system for electronic circuits associated with implanted leads

Process for manufacturing EMI filters utilizing counter-bored capacitors to facilitate solder re-flow

Decoupling circuits are provided which transfer energy induced from an MRI pulsed RF field to the housing for an active implantable medical device (AIMD) which serves as an energy dissipating surface. This is accomplished through broadband filtering or by resonant filtering. In a passive component network for an AIMD, a frequency selective energy diversion circuit is provided for diverting high-frequency energy away from an AIMD lead to the AIMD housing for dissipation of said high-frequency energy.

Frequency selective passive component networks for active implantable medical devices utilizing an energy dissipating surface

An energy management system facilitates the transfer of high frequency energy coupled into an implanted abandoned lead at a selected RF frequency or frequency band, to an energy dissipating surface. This is accomplished by conductively coupling the implanted abandoned lead to the energy dissipating surface of an abandoned lead cap through an energy diversion circuit including one or more passive electronic network components whose impedance characteristics are at least partially tuned to the implanted abandoned lead's impedance characteristics.

Methodology and apparatus to terminate abandoned active implantable medical device leads

A shielded three-terminal flat-through EMI/energy dissipating filter includes an active electrode plate through which a circuit current passes between a first terminal and a second terminal, a first shield plate on a first side of the active electrode plate, and a second shield plate on a second side of the active electrode plate opposite the first shield plate. The first and second shield plates are conductively coupled to a grounded third terminal. In preferred embodiments, the active electrode plate and the shield plates are at least partially disposed with a hybrid flat-through substrate that may include a flex cable section, a rigid cable section, or both.

Shielded three-terminal flat-through EMI/energy dissipating filter

An EMI shielded conduit assembly for an active implantable medical device (AIMD) includes an EMI shielded housing for the AIMD, a hermetic feedthrough terminal associated with the AIMD housing, and an electronic circuit board, substrate or network disposed within the AIMD housing remote from the hermetic feedthrough terminal. At least one leadwire extends from the hermetic feedthrough terminal to the remote circuit board, substrate or network. An EMI shield is conductively coupled to the AIMD housing and substantially co-extends about the leadwire in non-conductive relation thereto.

EMI shielded conduit assembly for an active implantable medical device

An RFID tag is disposed within a hermetically sealed housing of an IMD. Low frequency RFID interrogators and tags are used, and the housing walls are made of materials, and/or are reduced in thickness, to facilitate RF communication between the RFID tag and an RFID reader/interrogator programmer. An RFID reader/interrogator may be used which has a limited transmit time and time-out period to avoid interference with the operation of the IMD.

RFID detection and identification system for implantable medical devices

System for terminating abandoned implanted leads to minimize heating in high power electromagnetic field environments

An identification device for an implantable lead includes an associated implantable sleeve and a radio frequency identification device (RFID) tag associated with the sleeve. The RFID tag includes information relating to the implantable lead, its associated lead system, or an associated implantable medical device. The RFID tag may be hermetically sealed within the sleeve and the sleeve selectively fixed along a length of the lead. The sleeve may comprise a loop forming an aperture, a crimped clamp device, a clamp device including a ratchet, clip, or rivet mechanism, or a clamp device including two separate clamshells, all of which allow for secure attachment to the lead. Alternatively, the sleeve may integrally be formed as part of the lead between a lead conductor and an insulated lumen. An external interrogator may be used for identifying information contained within the RFID tag.

Implanted lead sleeve having RFID tag

Decoupling circuits are provided which transfer energy induced from an MRI pulsed RF field to an energy dissipating surface. This is accomplished through broadband filtering or by resonant filtering. In a passive component network for an implantable leadwire of an active implantable medical device, a frequency selective energy diversion circuit is provided for diverting high-frequency energy away from a leadwire electrode to a point or an area spaced from the electrode, for dissipation of high-frequency energy.

Frequency selective passive component networks for implantable leads of active implantable medical devices utilizing an energy dissipating surface

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Glendora, CA, United States of America

Buehl E Truex