Medtronic, Inc.

John E Nicholson

Andrew J Ries

Bryan J Zart

Jay K Lahti

James Strom

Brian R Burwick

Gregory A Theis

Craig L Wiklund

Thomas I Ceballos

William J Hooper

James D Reinke

John E Burnes

Eric J Panken

David A Ruben

William T Donofrio

Michael Robert Klardie

Paul Gordon Krause

William K Wenger

George Patras

Lynn M Seifried

Scott J Robinson

David B Engmark

Bernard Frank Heller, Jr

William L Johnson

Michael L Hudziak

William D Wolf

Thomas M Nutzman

Jennifer J Zhao

Eric M Rieder

David Reinker

Jeffrey A Swanson

Kevin K Tidemand

James M Sikorski

Richard A Bruchmann

Thomas J Olson

John C Mertz

Jeffrey L Galvin

Steven J Fischer

Brian S Child

Olivier Blandin

Daniel A Lyons

Bill R Simmons

Michael D Fletcher

Samira Tahvildari

Paul Vahle

Randy C Schulhauser

Lourdes O Kline

Michael K Berquist

Robert W Libbey

An implantable medical device (IMD) may include at least two separate lead connection assemblies, each with electrical connectors for connecting implantable leads to the IMD. In some examples, a IMD may include a first therapy module configured to generate a first electrical stimulation therapy and a second therapy module configured to generate a second electrical stimulation therapy for delivery to the patient. The IMD may include a first lead connection assembly including a first electrical connector electrically coupled to the first therapy module and a second lead connection assembly including a second electrical connector electrically coupled to the second therapy module. In some examples, the first and second lead connection assemblies are distributed around the outer perimeter of the IMD housing.

Implantable medical device including a plurality of lead connection assemblies

Apparatus and method according to the disclosure relate to minimizing gaps between a substantially planar cardiac-sensing electrode and a shroud member utilizing a so-called interference-fit. For example, a relatively recessed area or aperture formed in an exemplary resin-based shroud member has slightly reduced dimensions relative to the electrode and requires compression forces during assembly (e.g., manually or in an automated process including a press, a tool or other means). The interference-fit promotes a very tight fit (or seal) between the metallic electrode and the resin-based shroud member and, importantly, minimizes gaps. Additionally, discrete interference structures promote fluid tight seals between the electrode and a recess or aperture adapted to receive the electrode.

Interference-fit shroud-based cardiac electrodes

A terminal platform comprising a first terminal block securable to a housing of the battery, a second terminal block configured to electrically connect to a terminal wire of the battery, and an insulating support electrically isolating the second terminal block from the first terminal block.

Terminal platforms for batteries in implantable medical devices

An implantable medical device has one or more feedthrough/electrode assemblies positioned around an outer periphery of the device. Each of the assemblies includes a ferrule and a feedthrough conductor that extends longitudinally through the ferrule. Each of the assemblies also includes a cover having an insulative body and an electrical contact that is mounted to the plastic insulator. The plastic insulator is positioned over an inner end of the assembly such that the contact is operatively coupled to the feedthrough conductor of the assembly. The cover can be oriented so as to be freely accessible for purposes of electrically connecting circuitry within the implantable medical device to the contact, and in turn, the feedthrough conductor. In turn, the wiring used in connecting the circuitry and the contact can be routed within the implantable medical device as desired.

Electrical contact for a feedthrough/electrode assembly

A connector circuit assembly for use in an implantable medical device, and a method of making the assembly that includes a core portion formed of a thermoplastic material using either an injection molding process or a machining process. This core portion is adapted to be fitted with at least one electrically-conductive circuit component such as a connector member, a set-screw block, or a conductive jumper member. In one embodiment of the invention, the core portion includes multiple receptacles or other spaces that are adapted to be loaded with the various circuit components. The core assembly is positioned into a second-shot mold assembly, and a second thermoplastic material is injected into the mold so that the second thermoplastic material extends over and adheres to the core portion and the circuit component.

Connector assembly for an implantable medical device and process for making

A connector assembly for coupling to an implantable medical device includes a core element formed of a first thermoplastic material shaped to receive a connector member for receiving a lead. The connector assembly further includes a circuit member positioned adjacent to the core element. The circuit member includes a portion extending along the core element to the connector member and an antenna structure extending over a portion of the core element outer surface.

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

The invention discloses a subcutaneous electrode array or SEA for use in medical devices. The arrangement provides an enhanced capability for detecting and gathering electrical cardiac signals via the array of relatively closely spaced subcutaneous electrodes. Further, switching circuits, signal processors and memory to process electric cardiac signals are implemented to enable a leadless orientation-insensitive SEA scheme for receiving the electrical signal from the heart. The SEA is distributed over the perimeter of the implanted medical device and includes a non-conductive surround shroud of biocompatible material. The surround shroud is placed around the periphery of the case of the implanted medical device. Various configurations of recesses, each of which contain individual electrodes, are implemented to provide an enhanced signal to noise ratio for improved signal quality.

Surround shroud connector and electrode housings for a subcutaneous electrode array and leadless ECGS

An implantable medical device including a hermetic housing containing an electronic circuit, such as a cardiac pacemaker. The electronic circuit may be coupled to a medical lead by means of a connector module which is formed as part of a molded, resilient shroud, extending around the circumference of the hermetic container.

Implantable medical device including a first enclosure portion having a

Pacemaker

A conical annulus formed on a pacer lead body engages a deformable retention ring formed on the connector block to hold the lead in the pacer.

Locking connector for implantable device

Implantable medical housing

Growing community of inventors

Blaine, MN, United States of America

John E Nicholson