Medtronic, Inc.

David B Engmark

Andrew J Ries

Todd H Schaefer

Kevin K Tidemand

Thomas I Ceballos

Gary M Grose

Eric John Wengreen

Gregory John Haubrich

Erik R Scott

John E Kast

Randy S Roles

Joseph F Lessar

Gordon Orvis Munns

Suping Lyu

Brad Conrad Tischendorf

Andrew Jason Thom

Michael D Eggen

Joachim Hossick-Schott

George Patras

Robert L Olson

Joyce Yamamoto

Lynn M Seifried

Craig L Wiklund

Scott J Robinson

Simon E Goldman

Piotr J Przybyszewski

John E Nicholson

Greg Haubrich

Garry L Dublin

William D Wolf

Len D Twetan

Mary A Fraley

David Reinker

John Eric Lovins

Hui Jin

Jeffrey A Swanson

Richard A Bruchmann

Ronald F Hoch

Dominique Piguet

Jean-Francois Fischer

Iryna M Levina

Brian S Child

Lisa A Meyer

Doug Morelli

David M Johnson

William Michael Brosnan

Thomas J Fick

Mark E Jacoby

Mathieu K Horié

Catherine M Asgian

Ananta Pandey

David J Saltzman

Andrina J Hougham

William M Brosnan

Implantable pump controller

Frame structures, assemblies and methods for use in implantable medical devices. The frames may include one or more first polymeric portions and one or more second polymeric portions coupled to the one or more first polymeric portions. The one or more first polymeric portions may have a higher durometer than the one or more second polymeric portions. The one or more second polymeric portions may provide an interference fit between the one or more second polymeric portions and the housing and/or between the one or more second polymeric portions and one or more components disposed in the housing.

Frames for implantable medical devices and methods

An implantable medical device includes a housing forming an internal cavity, the housing defining a profile with a height and a width and further defining a thickness perpendicular to its profile. The thickness of the housing is shorter than both the height and the width of the profile of the housing. The implantable medical device further includes at least one battery within the internal cavity, at least one capacitor adjacent the battery within the internal cavity, the capacitor and the battery being located along a common plane within the internal cavity, and circuitry within the internal cavity. The circuitry extends over both the battery and the capacitor within the internal cavity such that the circuitry is in a stacked arrangement relative to the battery and the capacitor.

Battery and capacitor arrangement for an implantable medical device

An implantable medical device includes a housing; at least one module enclosed within the housing and configured to at least one of generate an electrical stimulation therapy for delivery to a patient or monitor a physiological parameter of the patient; one or more feedthroughs extending through the housing; a header assembly including one or more electrical connectors electrically coupled to the module via the feedthroughs; and a preformed gasket compressed between the housing and the header assembly forming a seal to electrically isolate the feedthroughs from an external environment.

Header assembly for implantable medical device

Structures and methods relating to electrodes for incorporation into a feedthrough with a profile adapted for subcutaneous sensing of physiologic and cardiac signals. Electrode assemblies are adapted for integration with feedthroughs and provide reliable insulation from the implantable medical device housing. Various structures and manufacturing processes are implemented to provide a large sensing surface with a low profile. The subcutaneous sensing electrode assembly can provide a leadless sensing system and further enhances installation and follow-up procedures.

Medical device surface electrode

An implantable medical device (IMD) having a hermetic housing formed from a case and a cover each having an exterior surface and an interior surface. An IMD component is mounted to the interior surface of the cover and has an electrical contact. A hybrid circuit is assembled in the case. The IMD component electrical contact is electrically coupled to the to the hybrid circuit assembled in the case.

Assembly method for implantable medical device

A multilayered feedthrough for an implantable medical device includes a substrate having a first edge, a second edge, and a substrate length. A plurality of traces is formed on the substrate and extends along the substrate length. The plurality of traces extends to the first and second edges of the substrate. An insulator layer is formed on the substrate and the plurality of traces. A ground plane layer is formed on the insulator layer.

Implantable co-fired electrical feedthroughs

A medical device is electrically connected to a biological tissue for transmission of an electrical signal between the medical device and the biological tissue. The medical device includes a housing assembly and a control circuit assembly that controls the electrical signal. The control circuit assembly is enclosed within the housing assembly, and the control circuit assembly includes an electrically conductive terminal. The device further includes an electrical component at least partially enclosed within the housing assembly. The electrical component has a connecting member that electrically connects the electrical component to the control circuit assembly. The connecting member is resistance welded and bonded directly to the electrically conductive terminal of the control circuit assembly.

Medical device having resistance welded connections

A feedthrough array for use in an implantable medical device is provided including an insulator, a plurality of conductive feedthrough pins extending through the insulator, and a ferrule including a flange extending inwardly from a ferrule sidewall along at least a majority of a length of a first ferrule side. A capacitor is disposed over the insulator and conductively coupled to the ferrule flange.

Feedthrough array for use in implantable medical devices

A telemetry antenna for an implantable medical device includes one or more portions having a non-linear configuration. In some embodiments, the non-linear configuration provides an antenna having a greater antenna length than the linear lengthwise dimension of the antenna structure. In some embodiments, the non-linear configuration is a serpentine pattern.

Telemetry antenna for an implantable medical device

An implantable medical device that includes an enclosure, an electrical module for the desired stimulation, sensing and communications functions, a power source, an air-core antenna, and supporting structures therefore. The antenna includes a quarter-elliptical shape that maximizes the antenna area to facilitate transmission of electromagnetic waves through the enclosure. A support structure is provided so that the antenna, the module and the battery self-align with each other and the enclosure. The support structure contains contacts to facilitate electrical connection of the antenna to the module and positions the module so that contacts thereon are in close proximity in plan and elevation to external electrical feed-throughs in the housing and the antenna contacts on the support structure. The support structure positions the antenna between the module and the housing, separated therefrom by a predetermined minimum distance to facilitate efficient coupling of electromagnetic waves to and/or from the antenna.

Implantable medical device with air core antenna assembly

In general, the invention is directed to an implantable medical device assembly having a more space-efficient housing and components, as well as processes for assembling the implantable medical device with reduced assembly cost and less complexity. The implantable medical device may incorporate a battery, capacitor, circuit assembly, feedthrough assembly, and interconnect assembly with respective electrical terminals. This configuration permits the use of automated electronic module assembly techniques such as parallel gap or ribbon bond welding to electrically connect the terminals. A feedthrough assembly may present a set of terminals adjacent a corresponding set of circuit terminals, also enabling the use of automated welding techniques.

Implantable medical device assembly and manufacturing method

A capacitive filter feedthrough assembly and method of making the same are disclosed for shielding an implantable medical device such as pacemaker or defibrillator from electromagnetic interference or noise. A ferrule is adapted for mounting onto a conductive device housing by welding, soldering, brazing or gluing, and supports a terminal pin for feedthrough passage to a housing interior. A capacitive filter is mounted at the inboard side of a device housing, with capacitive filter electrode plate sets coupled respectively to the housing and the terminal pin by an electrically conductive combination of solder and brazing. In one embodiment of the invention, multiple capacitive filters are provided in an array within a common base structure, where each capacitive filter is associated with a respective terminal pin.

Capacitive filter feedthrough for implantable medical device

Disclosed is a quick change battery drawer for rapidly substituting a fresh battery for an exhausted battery in the battery drawer of an external, battery powered therapeutic electrical stimulator while the stimulator continues to emit electrical stimulation to treat a patient. A push button is normally biased outward and a release member latches the battery drawer in the latched position through the interaction of first catches on the battery drawer and second catches on the release member. The terminals of a battery loaded in the battery drawer bear against and compress spring terminals that thereby spring load the battery drawer with a bias force and assist in keeping the battery drawer latched. When the release button is depressed, the first and second catches are disengaged, and the bias force acts to eject the battery and battery drawer forcefully into an ejected position where the battery drawer is prevented from completely ejecting from the side opening. In the ejected position, the battery can be grasped and easily removed. A fresh battery is inserted into the battery drawer, and the user manually presses against the drawer end cap against the spring terminal bias force until the first and second catches are engaged. The spring loaded catches and the use of seals around the end cap and release button allows the tolerances between the battery drawer and the side opening, as well as internal drawer and release guides, to be relaxed, preventing any binding from slowing the action.

Quick change battery drawer for external electrical stimulator

Growing community of inventors

Bethel, MN, United States of America

David B Engmark