Patents by Inventor Len Twetan

Len Twetan has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20070179554
    Abstract: 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.
    Type: Application
    Filed: January 30, 2006
    Publication date: August 2, 2007
    Inventors: Rajesh lyer, Daniel Koch, Simon Goldman, Shawn Knowles, William Taylor, Joyce Yamamoto, Gregory Haubrich, Michael Nowak, David Nghiem, Roger Hubing, Len Twetan
  • Publication number: 20070123955
    Abstract: A communications device facilitates communication between a medical device and a wireless communications network and comprises a telemetry circuit configured to wirelessly communicate with one or more medical devices, and a computer network communication interface configured to wirelessly communicate directly with a wireless computer network. The communications device also comprises a peripheral device communication interface configured to communicate with a wireless peripheral device and a processor being in operable communication with, and configured to control operations of, the telemetry circuit, the network communication interface, and the peripheral device communication interface.
    Type: Application
    Filed: November 30, 2005
    Publication date: May 31, 2007
    Inventors: William Verhoef, Gregory Haubrich, Javaid Masoud, Len Twetan
  • Publication number: 20070060053
    Abstract: Unscheduled wireless communication with a medical device is achieved by operating a receiver of the medical device in a series of modes. Each mode provides an increasingly selective evaluation of received RF energy. The receiver, when operating in a first mode, is capable of detecting the presence of RF energy transmitted from a communicating device. The receiver, when operating in a second mode, consumes more energy than the first mode and analyzes the RF energy to determine whether it contains the appropriate type of modulation. When operating in a third mode, the receiver consumes more energy than the second mode, and operates the full receiver to begin communication with the communicating device. The receiver opens a communication session after the RF energy has passed the evaluation by the series of modes to receive an unscheduled communication.
    Type: Application
    Filed: September 12, 2005
    Publication date: March 15, 2007
    Inventors: Gregory Haubrich, Len Twetan, David Peichel, Charles Dudding, George Rosar, Quentin Denzene
  • Publication number: 20060241724
    Abstract: An implantable device, such as an implantable medical device (IMD) includes at least two radio frequency (RF) antennas and may additionally include an RF communication circuit. The RF antennas are spatially diverse, are disposed adjacent a housing, and are each configured to receive RF signals transmitted to the IMD from a remote RF signal source. The RF communication circuit, if included, is disposed within the housing and is configured to selectively receive the RF signals received by one or more of the spatially diverse RF antennas.
    Type: Application
    Filed: April 20, 2005
    Publication date: October 26, 2006
    Inventors: Garry Dublin, Gregory Haubrich, Chris Fuller, Piotr Przybyszewski, Len Twetan, William Verhoef
  • Publication number: 20060161222
    Abstract: In some embodiments, a medical device system may include one or more of the following features: (a) an external medical device (EMD), (b) an implantable medical device (IMD) disposed within a hermetically sealed housing adapted for implantation in the body of a patient to provide a therapy delivery and/or monitoring function, (c) two or more transmitters disposed within the EMD, the two or more transmitters uplinking telemetry transmissions generated by the EMD, (d) two or more receivers disposed within the IMD, the two or more receivers downlinking the telemetry transmissions, and (e) the IMD processing the telemetry transmission received by a selected one of the two or more receivers, the selection being based on which receiver is receiving the best quality signal transmission reception.
    Type: Application
    Filed: January 15, 2005
    Publication date: July 20, 2006
    Inventors: Gregory Haubrich, Len Twetan, George Rosar
  • Publication number: 20060122665
    Abstract: 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.
    Type: Application
    Filed: December 28, 2004
    Publication date: June 8, 2006
    Inventors: David Nghiem, Joshua Francis, Paul Simonette, Garry Dublin, Randy Sazenski, Gregory Haubrich, Timothy Aarons, Quentin Denzene, Len Twetan
  • Publication number: 20060122666
    Abstract: 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.
    Type: Application
    Filed: April 29, 2005
    Publication date: June 8, 2006
    Inventors: David Nghiem, Joshua Francis, Paul Simonette, Garry Dublin, Randy Sazenski, Gregory Haubrich, Timothy Aarons, Quentin Denzene, Len Twetan
  • Publication number: 20060020300
    Abstract: 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.
    Type: Application
    Filed: June 9, 2004
    Publication date: January 26, 2006
    Inventors: David Nghiem, Lawrence Baylis, David Bohn, Glenn Biddick, John Spitzley, Len Twetan
  • Publication number: 20050203583
    Abstract: 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.
    Type: Application
    Filed: March 10, 2004
    Publication date: September 15, 2005
    Inventors: Len Twetan, Piotr Przybyszewski, Garry Dublin, Gregory Haubrich, Andrina Hougham, Andrew Ries, David Engmark, Gary Grose
  • Publication number: 20050203584
    Abstract: 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.
    Type: Application
    Filed: March 31, 2005
    Publication date: September 15, 2005
    Inventors: Len Twetan, Piotr Przybyszewski, Garry Dublin, Andrina Hougham, Gregory Haubrich, Andrew Ries, David Engmark, Gary Grose