Cardiac Pacemakers, Inc.

Medtronic, Inc.

Enteromedics Inc.

Global Wireless Technology Inc.

David Nghiem

Larry D Canady

Peter Musto

Keith R Maile

Len D Twetan

Paul T Simonette

Randy Sazenski

Gregory John Haubrich

Jason William Sprain

Scott Anthony Lambert

David H Tran

Matthew G Jaenke

Rajesh V Iyer

William John Taylor

Joyce Yamamoto

Simon E Goldman

Shawn D Knowles

Dennis Eric Larson

Daniel J Koch

Garry L Dublin

Quentin Scott Denzene

Mahesh Maddali

Michael E Nowak

Mark G Deehr

Timothy C Aarons

Arthur Jason Nghiem

Thao N Nguyen

Roger L Hubing

Joshua K Francis

Lawrence A Baylis

David B Bohn

Glenn R Biddick

John J Spitzley

Ronald W Solfest

Dennis E Larson

Peter J Musto

An antenna for electrical coupling to a wireless communication circuit includes a first conductive strip segment having a first length, a second conductive strip segment having a second length different from the first length and coupled to the first conductive strip segment at a feed point to be electrically coupled to the drive node, and a third conductive strip segment having a third length less than both the first length and the second length. A first end of the third conductive strip is coupled to the feed point and a second end is coupled to circuit ground. The first conductive strip segment provides a first specified operating frequency range at a fundamental resonance mode corresponding to the first length plus the third length, and the second conductive strip segment provides a second specified operating frequency range at a fundamental resonance mode corresponding to the second length plus the third length.

No-matching-circuit multi-band diversity antenna system for medical external-communications

No-matching-circuit multi-band diversity antenna system for medical external communications

A grip guide for a hand held wireless communication device housing that guides proper hand placement on the housing. The grip guide can include a frame having an interior region sized and shaped to receive a hand held wireless communication device. An exterior surface includes first and second protrusions adjacent an antenna area of the communication device, and a gripping region between the regions. The protrusions guide a user to grip the housing at the gripping regions.

Wireless communication device grip guide

A planar antenna for wireless information transfer can include a planar loading portion electrically coupled to a driven node of a wireless communication circuit, and a folded conductive strip portion coupled to the planar loading portion, the folded conductive strip portion comprising at least two segments laterally offset from each other and at least partially laterally overlapping with each other. The planar loading portion can be configured to establish a specified bandwidth of a second operating frequency range, leaving a first specified operating frequency range substantially unchanged.

Multi-band loaded antenna

Apparatus and techniques can include a planar antenna that can include a folded conductive strip portion coupled to a driven node of a wireless communication circuit, the folded conductive strip portion comprising at least two segments laterally offset from each other and at least partially laterally overlapping with each other, and a first region oriented along a first axis in a plane of the planar antenna and a second region oriented along a second axis in the plane of the planar antenna, the two axes and the two regions specified to provide polarization diversity of radiation from the planar antenna. The planar antenna can include a stub coupled to the folded conductive strip portion, the stub configured to provide a first specified operating frequency range at or near resonance using a mode corresponding to a total physical path length along the folded conductive strip portion.

Multi-band multi-polarization stub-tuned antenna

Embodiments of an implantable medical device includes a loop antenna wound about an inner housing. The loop antenna may form a partial winding, a complete winding, or multiple windings about the inner housing. One or more additional antennae may be capacitively coupled to the loop antenna external to the inner housing to increase efficiency and decrease Return Loss Response of the implantable device. The additional antenna may be balanced or unbalanced antennae.

Antenna arrangements for implantable therapy device

A physical arrangement can be provided between at least a portion of a first segment of an implantable antenna with respect to a return conductor, and an input impedance of the implantable antenna can be controlled using the physical arrangement to provide a substantially conjugate match to an output impedance of an implantable telemetry circuit coupled to the implantable antenna.

Impedance-controlled implantable telemetry antenna

An implantable medical device is provided including a housing, an external circuit element extending outwardly from the housing, an internal circuit enclosed by the housing, a feedthrough array disposed along the housing having at least one filtered feedthrough and at least one unfiltered feedthrough, wherein the unfiltered feedthrough is adapted for connection to the outwardly extending circuit element; and including means for minimizing electromagnetic coupling between the filtered feedthrough and the unfiltered feedthrough.

Method and apparatus for minimizing EMI coupling in a feedthrough array having at least one unfiltered feedthrough

A wireless data communication card configured in accordance with an example embodiment of the invention includes a low profile antenna arrangement that does not protrude from the housing of the computing device when the wireless data communication card is inserted into the housing. The low profile design is achieved without compromising the radio frequency ('RF') characteristics and performance of the wireless data communication card by tuning the antenna arrangement to account for conductive ground structure located within the housing of the computing device. In accordance with one practical embodiment of the invention, the wireless data communication card is compliant with IEEE Standard 802.11(b) and compliant with PCMCIA specifications.

Wireless data communication card with compact antenna

A telemetry component according to an embodiment of the invention, such as a programmer or a monitor for an implantable medical device ('IMD'), includes at least one radio frequency ('RF') antenna that is configured to accommodate far-field telemetry between the telemetry component and the IMD. The RF antenna is shaped, sized, positioned, and otherwise configured to account for surface current cancellation caused by induced surface current on an electrically conductive surface of the telemetry component.

Compact conformal antenna for a medical telemetry system

A wireless communication system is provided that includes an antenna structure adapted for coupling to a medical device antenna when the medical device is not implanted in a patient's body. The antenna structure effectively extends the medical device antenna length, thereby improving the efficiency and reliability of a communication link between the medical device and a programmer or monitor outside the implanted environment. The antenna structure is fabricated from any conductive material, which may be in the form of conductive wire, tape, ink, foil, film, adhesive or the like, and is attached to a portion of a medical device packaging assembly or another accessory device or substrate such as a pouch or overlay. The antenna structure may be a monopole, dipole, slot antenna, microstrip patch, or loop antenna, and may be fixed or movable relative to the substrate on which it is implemented.

Implantable medical device package antenna

Growing community of inventors

Shoreview, MN, United States of America

David Nghiem