Patents by Inventor Len D. Twetan

Len D. 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).

  • Patent number: 8428722
    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: Grant
    Filed: June 8, 2010
    Date of Patent: April 23, 2013
    Assignee: Medtronic, Inc.
    Inventors: William D. Verhoef, Gregory J. Haubrich, Javaid Masoud, Len D. Twetan
  • Patent number: 8280521
    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: Grant
    Filed: October 14, 2011
    Date of Patent: October 2, 2012
    Assignee: Medtronic, Inc.
    Inventors: Gregory J. Haubrich, Len D. Twetan, David Peichel, Charles H. Dudding, George C. Rosar, Quentin S. Denzene
  • Patent number: 8160707
    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: Grant
    Filed: January 30, 2006
    Date of Patent: April 17, 2012
    Assignee: Medtronic, Inc.
    Inventors: Rajesh V. Iyer, Daniel J. Koch, Simon E. Goldman, Shawn D. Knowles, William J. Taylor, Joyce K. Yamamoto, Gregory J. Haubrich, Michael Nowak, David Nghiem, Roger L. Hubing, Len D. Twetan
  • Publication number: 20120034896
    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: October 14, 2011
    Publication date: February 9, 2012
    Inventors: Gregory J. HAUBRICH, Len D. TWETAN, David PEICHEL, Charles H. DUDDING, George C. ROSAR, Quentin S. DENZENE
  • Patent number: 8065018
    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: Grant
    Filed: September 12, 2005
    Date of Patent: November 22, 2011
    Assignee: Medtronic, Inc.
    Inventors: Gregory J. Haubrich, Len D. Twetan, David Peichel, Charles H. Dudding, George C. Rosar, Quentin S. Denzene
  • Publication number: 20100249887
    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: June 8, 2010
    Publication date: September 30, 2010
    Inventors: William D. Verhoef, Gregory J. Haubrich, Javaid Masoud, Len D. Twetan
  • Patent number: 7761164
    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: Grant
    Filed: November 30, 2005
    Date of Patent: July 20, 2010
    Assignee: Medtronic, Inc.
    Inventors: William D. Verhoef, Gregory J. Haubrich, Javaid Masoud, Len D. Twetan
  • Patent number: 7672731
    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: Grant
    Filed: April 20, 2005
    Date of Patent: March 2, 2010
    Assignee: Medtronic, Inc.
    Inventors: Garry L. Dublin, Gregory J. Haubrich, Chris C. Fuller, Piotr Przybyszewski, Len D. Twetan, William D. Verhoef
  • Patent number: 7363087
    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: Grant
    Filed: April 29, 2005
    Date of Patent: April 22, 2008
    Assignee: Medtronic, Inc.
    Inventors: David Nghiem, Joshua K. Francis, Paul T. Simonette, Garry L. Dublin, Randy R. Sazenski, Gregory J. Haubrich, Timothy C. Aarons, Quentin S. Denzene, Len D. Twetan
  • Patent number: 7317946
    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: Grant
    Filed: March 10, 2004
    Date of Patent: January 8, 2008
    Assignee: Medtronic, Inc.
    Inventors: Len D. Twetan, Piotr Przybyszewski, Garry L. Dublin, Gregory J. Haubrich, Andrina J. Hougham, Andrew J. Ries, David B. Engmark, Gary M. Grose
  • Patent number: 7289855
    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: Grant
    Filed: June 9, 2004
    Date of Patent: October 30, 2007
    Assignee: Medtronic, Inc.
    Inventors: David Nghiem, Lawrence A. Baylis, David B. Bohn, Glenn R. Biddick, John J Spitzley, Len D. Twetan
  • Patent number: 7016733
    Abstract: Improved telemetry antennas and methods of fabrication for an implantable medical device (IMD) for use in uplink telemetry (UT) and downlink telemetry (DT) transmissions between the IMD and an external medical device (EMD) are disclosed. A first telemetry antenna element is supported to extend in a first direction along a minor side of the IMD housing by a first header segment, and a second antenna element is supported to extend in a second direction along a second minor side of the IMD housing by a second header segment. The first and second antenna elements are supported to extend apart at substantially 90° to one another, i.e., substantially orthogonally, in substantially a common plane to optimize UT transmission and DT reception of UHF telemetry signals by at least one of the first and second antenna elements depending upon the mutual spatial orientation with the antenna elements of an EMD antenna.
    Type: Grant
    Filed: April 23, 2003
    Date of Patent: March 21, 2006
    Assignee: Medtronic, Inc.
    Inventors: Garry L. Dublin, William D. Verhoef, Rodney S. Wallace, Len D. Twetan, Eugene Kuschnir, Gregory J. Haubrich, Piotr J Przybyszewski, Christine G. Kronich, Bonnie Dougherty, legal representative, Eduardo H. Villaseca, deceased
  • Publication number: 20040215280
    Abstract: Improved telemetry antennas and methods of fabrication for an implantable medical device (IMD) for use in uplink telemetry (UT) and downlink telemetry (DT) transmissions between the IMD and an external medical device (EMD) are disclosed. A first telemetry antenna element is supported to extend in a first direction along a minor side of the IMD housing by a first header segment, and a second antenna element is supported to extend in a second direction along a second minor side of the IMD housing by a second header segment. The first and second antenna elements are supported to extend apart at substantially 90° to one another, i.e., substantially orthogonally, in substantially a common plane to optimize UT transmission and DT reception of UHF telemetry signals by at least one of the first and second antenna elements depending upon the mutual spatial orientation with the antenna elements of an EMD antenna.
    Type: Application
    Filed: April 23, 2003
    Publication date: October 28, 2004
    Inventors: Garry L. Dublin, William D. Verhoef, Rodney S. Wallace, Len D. Twetan, Eugene Kuschnir, Gregory J. Haubrich, Piotr J. Przybyszewski, Christine G. Kronich, Eduardo H. Villaseca, Bonnie Dougherty
  • Patent number: 6738671
    Abstract: An implantable medical device system that includes an implantable medical device, along with a transceiver device that exchanges data with the patient, between the patient and the implantable medical device, and between a remote location and the implantable medical device. A communication device coupled to the transceiver device exchanges data with the transceiver device, the implantable medical device through the receiver device, and between the transceiver device and the remote location to enable bi-directional data transfer between the patient, the implantable medical device, the transceiver device, and the remote location. A converter unit converts transmission of the data from a first telemetry format to a second telemetry format, and a user interface enables information to be exchanged between the transceiver device and the patient, between the implantable medical device and the patient through the transceiver device, and between the patient and the remote location through the transceiver device.
    Type: Grant
    Filed: October 26, 2001
    Date of Patent: May 18, 2004
    Assignee: Medtronic, Inc.
    Inventors: Mark A. Christophersom, Adrianus P. Donders, Keith A. Miesel, Len D. Twetan
  • Publication number: 20020123672
    Abstract: An implantable medical device system that includes an implantable medical device, along with a transceiver device that exchanges data with the patient, between the patient and the implantable medical device, and between a remote location and the implantable medical device. A communication device coupled to the transceiver device exchanges data with the transceiver device, the implantable medical device through the receiver device, and between the transceiver device and the remote location to enable bi-directional data transfer between the patient, the implantable medical device, the transceiver device, and the remote location. A converter unit converts transmission of the data from a first telemetry format to a second telemetry format, and a user interface enables information to be exchanged between the transceiver device and the patient, between the implantable medical device and the patient through the transceiver device, and between the patient and the remote location through the transceiver device.
    Type: Application
    Filed: October 26, 2001
    Publication date: September 5, 2002
    Inventors: Mark A. Christophersom, Adrianus P. Donders, Keith A. Miesel, Len D. Twetan