Medtronic, Inc.

Daniel Charles Haeg

James F Kelley

Craig L Wiklund

David E Francischelli

Roderick E Briscoe

Tom P Daigle

Mark T Stewart

Paul T Rothstein

Douglas H Gubbin

Michael J Hobday

Tessy Kanayinkal

David J Kim

Christopher Plott

Patrick Cloutier

Andrew Olson

Joseph E Cardinal

Leonard H Leuer

Christopher W Smith

Jessica L Foley

Andrew J Ries

Scott Eric Jahns

Bernard Frank Heller, Jr

Kenneth E Cobian

James E Upton

Jennifer J Zhao

Kevin K Tidemand

Hui Jin

Phong D Doan

Roger C Erickson

Gordon R Helmer

Paul Rudolph

Adam A Podbeliski

David C Rice

James J Christenson

Steven C Chrisitian

Marie T Steinbrink

Loc Van Vo

A novel occluder application and clip device for treatment of embolic stroke caused by atrial fibrillation uses multiple sutures in a non directional handle to affix the occlusion device to the applicator and manipulate the occluder from an open and receiving position to a closed and occluding position. The occluder is retained in place by a clamping means related to locks retainers, resilient material or otherwise. An actuator mechanism is used to manipulate the occluder to a locked or occluding position. The applicator with the occluder attached has a low profile and remote manipulations to allow the occluder to be delivered to the clamping location within a patient through a small incision or delivery port such as a trocar cannula or the like.

Methods and devices for occlusion of an atrial appendage

The invention provides a system for occluding a left atrial appendage of a patient. The system can include a ring occluder that can be positioned around the left atrial appendage and a ring applicator to position the ring occluder with respect to the left atrial appendage. The system can also provide a tissue-grasping tool that is separable from the ring applicator tool.

Device for occlusion of a left atrial appendage

Embodiments of the invention provide an ablation apparatus for ablating target tissue adjacent pulmonary veins of a patient. The ablation apparatus can include a tube capable of being advanced around the pulmonary veins to form a loop. The tube can receive or include electrodes to ablate target tissue. Some embodiments provide a loop ablation device, which may include a cannula and two or more electrode rods carrying two or more bipolar electrodes. The electrode rods can be advanced through the distal ends toward the proximal ends of the loop and toward the target tissue. The bipolar electrodes can receive energy to ablate the target tissue. The bipolar electrodes may be surrounded by the liquid within the cannula while ablating the target tissue. The loop ablation device can further include a rotating grasping mechanism coupled to the electrode rods.

Loop ablation apparatus and method

An implantable medical device (IMD) includes a connector header for making electrical and mechanical connections with a proximal connector assembly of an electrical medical lead and includes a retainer for retaining a penetrable grommet within a header grommet aperture. A connector block disposed within a header body of the connector header has a threaded bore aligned with a header grommet aperture and a connector block bore aligned with a header connector bore. The penetrable grommet is disposed within the header grommet aperture, and a setscrew is threaded into the threaded bore having a setscrew socket disposed to be engaged by a tool inserted through the penetrable grommet within the header grommet aperture to enable rotation of the setscrew within the threaded bore to tighten the setscrew against or to loosen the setscrew from a lead connector element received in the header connector bore.

IMD connector header with grommet retainer

The present invention generally relates to an improved implantable medical device (IMD) and more particularly to an ultrasonically weld perforated lid for an IMD to form a hermetic seal between the IMD and the perforated lid. Appropriately configured perforated lids retain one or more components within a cavity or port formed in a part of an IMD. Such lids preferably secure a pierceable resilient grommet, septum or other resilient member in a cavity or port. When an adjustment instrument, a pull tool or a syringe is temporarily inserted therethrough and later extracted, the resilient member heals (i.e., seals and/or reseals). Preferably, the resilient member abuts a mechanical stop and is compressed slightly during assembly and ultrasonic welding of the lid. The resilient member preferably has a lateral dimension like the cavity or port so that when the lid compresses the resilient member it expands slightly and contacts the interior cavity surfaces thus improving the seal.

Ultrasonically welded, staked or swaged components in an implantable medical device

The present invention generally relates to implantable medical devices and more particularly to various means for ultrasonically welding, swaging or staking various components in an implantable medical device, most preferably by employing appropriately configured covers or lids. Covers or lids are attached to header or connector modules mounted on an hermetically enclosed and sealed enclosure, where the connector or header module and enclosure comprise an implantable medical device. The covers or lids preferably trap or otherwise secure any of a number of various connector or header module components within the header or connector modules. Examples of such trapped or secured components include grommets, set screw connector blocks, seals, feedthrough wires, multi-beam contacts, electrical contacts, antennas, radio-opaque markers, connector ribbons and the like.

Method of making ultrasonically welded, staked of swaged components in an implantable medical device

A cover for an electrochemical cell is molded by a metal injection molding process. The cover includes a main body portion completely integral with a feedthrough ferrule portion for accommodating an electrical lead to pass through the cover and/or completely integral with a fillport portion for introducing cathode material into the cell.

Metal injection molded cover for an electrochemical cell

A method and apparatus for attaching a pre-formed header module, e.g. a connector header module or an electrode bearing header module, etc., to a hermetically sealed enclosure of the implantable medical device, typically including electronic integrated circuits, batteries, electromechanical pumps, or the like, are disclosed. A plurality of upstanding tabs that are fixed to the hermetically sealed enclosure, e.g. to the enclosure attachment surface, extend into a like plurality of tab channels formed in the header module housing. The upstanding tab(s) are inserted into the respective tab channel(s) during seating of the module and enclosure attachment surfaces and effects an initial alignment of the header module with the hermetically sealed enclosure. Each attachment tab has a retention feature formed on or in the tab that is designed to accommodate the flow of the thermoplastic material during the application of ultrasonic energy in the region of the tab channel and to cooperate with the solidified mass of thermoplastic material. During application of the ultrasonic energy, the thermoplastic material melts and flows into the remaining space of the tab channel and encapsulate the attachment tab including the retention feature. Upon termination of the ultrasonic energy, the thermoplastic housing material cools and solidifies and forms a continuous mass that encapsulates the surface of the attachment tab and the retention feature.

Attachment apparatus for an implantable medical device employing

Attachment apparatus and method for an implantable medical device

A method and apparatus for attaching a pre-formed header module to a hermetically sealed enclosure of an implantable medical device are described. A plurality of upstanding tabs attached to the hermetically sealed enclosure extend into a plurality of corresponding tab channels formed in the header module. The upstanding tabs are inserted into the respective tab channels during seating of the module and enclosure attachment surfaces and effect an initial alignment of the header module with the hermetically sealed enclosure. Each attachment tab has a retention feature such as a recess formed on or in the tab that is designed to receive molten thermoplastic material when ultrasonic energy is applied in the region of the tab channel.

A plasma treatment apparatus for treating strip-stock material, such as tubing, wire, webs, and the like, by moving the strip-stock through a plasma treatment region of the apparatus provides improved consistency of surface treatment if the tension on the material is maintained within a predetermined range.

Continuous plasma surface treatment apparatus for running length

A cardiac pacing lead has a plurality of individually insulated conductors arranged as a multifilar coil. The lead includes a connector assembly and a ring electrode assembly, each of which are optimized for use in conjunction with conductors arranged in the form of a multifilar coil. The connector assembly takes the form of an in-line connector having a plurality of linearly arranged connecting surfaces, each coupled to one of the conductors in the multifilar coil. The ring electrode assembly is constructed such that it displays the same outer diameter as the pacing lead. In both assemblies, conductors are coupled by means of welds, rather than by crimping or swaging.

Ring electrode for multiconductor pacing leads

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Champlin, MN, United States of America

Daniel Charles Haeg