Search Patents
  • METHODS AND APPARATUS FOR POWER CONVERSION AND DATA TRANSMISSION IN IMPLANTABLE SENSORS, STIMULATORS, AND ACTUATORS
    Publication number: 20180296849
    Abstract: Implantable devices and/or sensors can be wirelessly powered by controlling and propagating electromagnetic waves in a patient's tissue. Such implantable devices/sensors can be implanted at target locations in a patient, to stimulate areas such as the heart, brain, spinal cord, or muscle tissue, and/or to sense biological, physiological, chemical attributes of the blood, tissue, and other patient parameters. In some embodiments, the implantable devices can include power management schemes that have one or more AC-DC conversion chains arranged and configured to rectify the induced alternating current or voltage into one or more energy domains. Methods of use are also described.
    Type: Application
    Filed: June 20, 2018
    Publication date: October 18, 2018
    Inventors: Ada Shuk Yan POON, Alexander J. YEH
  • Wireless Midfield Systems and Methods
    Publication number: 20190175920
    Abstract: Implantable devices and/or sensors can be wirelessly powered by controlling and propagating electromagnetic waves in a patient's tissue. Such implantable devices/sensors can be implanted at target locations in a patient, to stimulate areas such as the heart, brain, spinal cord, or muscle tissue, and/or to sense biological, physiological, chemical attributes of the blood, tissue, and other patient parameters. The propagating electromagnetic waves can be generated with sub-wavelength structures configured to manipulate evanescent fields outside of tissue to generate the propagating waves inside the tissue. Methods of use are also described.
    Type: Application
    Filed: February 12, 2019
    Publication date: June 13, 2019
    Inventors: Ada Shuk Yan Poon, Alexander Jueshyan Yeh, Yuji Tanabe, John Ho, Sanghoek Kim
  • Angular domain signal processing techniques
    Publication number: 20070281632
    Abstract: A system of the present application includes a first wireless communication device including a number of first device antenna elements, first device processing circuitry, and a first device transmitter to provide a wireless transmission of transmitter vectors corresponding to spatial filters. Also included is a second communication device with a number of second device antenna elements, a second device receiver to receive one or more signals corresponding to the wireless transmission of the transmitter vectors, and second device processing circuitry to generate receiver vectors corresponding to those signals. One or more of the first device and the second device is structured to determine angular spectrum as a function of the transmitter vectors, the receiver vectors, a transmit array manifold, and a receive array manifold.
    Type: Application
    Filed: June 5, 2006
    Publication date: December 6, 2007
    Inventor: Ada Shuk Yan Poon
  • METHOD AND APPARATUS FOR FABRICATING AN ENERGY TRANSMITTING DEVICE
    Publication number: 20190247667
    Abstract: Implantable devices and/or sensors can be wirelessly powered by controlling and propapting electromagnetic waves in a patient's tissue. Such implantable devices/sensors can be implanted at target locations in a patient, to stimulate areas such as the heart, brain, spinal cord, or muscle tissue, and/or to sense biological physiological, chemical attributes of the blood, tissue, and other patient parameters. The propagating electromagnetic waves can be generated with sub-wavelength structures configured to manipulate evanescent fields outside of tissue to generate the propagating waves inside the tissue. Methods of use are also described.
    Type: Application
    Filed: April 23, 2019
    Publication date: August 15, 2019
    Inventors: Ada Shuk Yan Poon, Alexander Jueshyan Yeh, Yuji Tanabe, John Ho, Sanghoek Kim
  • Wireless Midfield Systems and Methods
    Publication number: 20190175921
    Abstract: Implantable devices and/or sensors can be wirelessly powered by controlling and propagating electromagnetic waves in a patient's tissue. Such implantable devices/sensors can be implanted at target locations in a patient, to stimulate areas such as the heart, brain, spinal cord, or muscle tissue, and/or to sense biological, physiological, chemical attributes of the blood, tissue, and other patient parameters. The propagating electromagnetic waves can be generated with sub-wavelength structures configured to manipulate evanescent fields outside of tissue to generate the propagating waves inside the tissue. Methods of use are also described.
    Type: Application
    Filed: February 12, 2019
    Publication date: June 13, 2019
    Inventors: Ada Shuk Yan Poon, Alexander Jueshyan Yeh, Yuji Tanabe, John Ho, Sanghoek Kim
  • Wireless Midfield Systems and Methods
    Publication number: 20190175919
    Abstract: Implantable devices and/or sensors can be wirelessly powered by controlling and propagating electromagnetic waves in a patient's tissue. Such implantable devices/sensors can be implanted at target locations in a patient, to stimulate areas such as the heart, brain, spinal cord, or muscle tissue, and/or to sense biological, physiological, chemical attributes of the blood, tissue, and other patient parameters. The propagating electromagnetic waves can be generated with sub-wavelength structures configured to manipulate evanescent fields outside of tissue to generate the propagating waves inside the tissue. Methods of use are also described.
    Type: Application
    Filed: February 12, 2019
    Publication date: June 13, 2019
    Inventors: Ada Shuk Yan Poon, Alexander Jueshyan Yeh, Yuji Tanabe, John Ho, Sanghoek Kim
  • Wireless Midfield Systems and Methods
    Publication number: 20190175922
    Abstract: Implantable devices and/or sensors can be wirelessly powered by controlling and propagating electromagnetic waves in a patient's tissue. Such implantable devices/sensors can be implanted at target locations in a patient, to stimulate areas such as the heart, brain, spinal cord, or muscle tissue, and/or to sense biological, physiological, chemical attributes of the blood, tissue, and other patient parameters. The propagating electromagnetic waves can be generated with sub-wavelength structures configured to manipulate evanescent fields outside of tissue to generate the propagating waves inside the tissue. Methods of use are also described.
    Type: Application
    Filed: February 12, 2019
    Publication date: June 13, 2019
    Inventors: Ada Shuk Yan Poon, Alexander Jueshyan Yeh, Yuji Tanabe, John Ho, Sanghoek Kim
  • Wireless Midfield Systems and Methods
    Publication number: 20240042222
    Abstract: Implantable devices and/or sensors can be wirelessly powered by controlling and propagating electromagnetic waves in a patient's tissue. Such implantable devices/sensors can be implanted at target locations in a patient, to stimulate areas such as the heart, brain, spinal cord, or muscle tissue, and/or to sense biological, physiological, chemical attributes of the blood, tissue, and other patient parameters. The propagating electromagnetic waves can be generated with sub-wavelength structures configured to manipulate evanescent fields outside of tissue to generate the propagating waves inside the tissue. Methods of use are also described.
    Type: Application
    Filed: August 24, 2023
    Publication date: February 8, 2024
    Inventors: Ada Shuk Yan Poon, Alexander Jueshyan Yeh, Yuji Tanabe, John Ho, Sanghoek Kim
  • Wireless Midfield Systems and Methods
    Publication number: 20190175923
    Abstract: Implantable devices and/or sensors can be wirelessly powered by controlling and propagating electromagnetic waves in a patient's tissue. Such implantable devices/sensors can be implanted at target locations in a patient, to stimulate areas such as the heart, brain, spinal cord, or muscle tissue, and/or to sense biological, physiological, chemical attributes of the blood, tissue, and other patient parameters. The propagating electromagnetic waves can be generated with sub-wavelength structures configured to manipulate evanescent fields outside of tissue to generate the propagating waves inside the tissue. Methods of use are also described.
    Type: Application
    Filed: February 12, 2019
    Publication date: June 13, 2019
    Inventors: Ada Shuk Yan Poon, Alexander Jueshyan Yeh, Yuji Tanabe, John Ho, Sanghoek Kim
  • Wireless Midfield Systems and Methods
    Publication number: 20180229044
    Abstract: Implantable devices and/or sensors can be wirelessly powered by controlling and propagating electromagnetic waves in a patient's tissue. Such implantable devices/sensors can be implanted at target locations in a patient, to stimulate areas such as the heart, brain, spinal cord, or muscle tissue, and/or to sense biological, physiological, chemical attributes of the blood, tissue, and other patient parameters. The propagating electromagnetic waves can be generated with sub-wavelength structures configured to manipulate evanescent fields outside of tissue to generate the propagating waves inside the tissue. Methods of use are also described.
    Type: Application
    Filed: November 17, 2017
    Publication date: August 16, 2018
    Inventors: Ada Shuk Yan Poon, Alexander Yeh, Yuji Tanabe, John Ho, Sanghoek Kim
  • Wireless Midfield Systems and Methods
    Publication number: 20210283406
    Abstract: Implantable devices and/or sensors can be wirelessly powered by controlling and propagating electromagnetic waves in a patient's tissue. Such implantable devices/sensors can be implanted at target locations in a patient, to stimulate areas such as the heart, brain, spinal cord, or muscle tissue, and/or to sense biological, physiological, chemical attributes of the blood, tissue, and other patient parameters. The propagating electromagnetic waves can be generated with sub-wavelength structures configured to manipulate evanescent fields outside of tissue to generate the propagating waves inside the tissue. Methods of use are also described.
    Type: Application
    Filed: January 14, 2021
    Publication date: September 16, 2021
    Inventors: Ada Shuk Yan Poon, Alexander Jueshyan Yeh, Yuji Tanabe, John Ho, Sanghoek Kim
  • Wireless Midfield Systems and Methods
    Publication number: 20190175924
    Abstract: Implantable devices and/or sensors can be wirelessly powered by controlling and propagating electromagnetic waves in a patient's tissue. Such implantable devices/sensors can be implanted at target locations in a patient, to stimulate areas such as the heart, brain, spinal cord, or muscle tissue, and/or to sense biological, physiological, chemical attributes of the blood, tissue, and other patient parameters. The propagating electromagnetic waves can be generated with sub-wavelength structures configured to manipulate evanescent fields outside of tissue to generate the propagating waves inside the tissue. Methods of use are also described.
    Type: Application
    Filed: February 12, 2019
    Publication date: June 13, 2019
    Inventors: Ada Shuk Yan Poon, Alexander Jueshyan Yeh, Yuji Tanabe, John Ho, Sanghoek Kim
  • Multi-element coupler for generation of electromagnetic energy
    Patent number: 9744369
    Abstract: Implantable devices and/or sensors can be wirelessly powered by controlling and propagating electromagnetic waves in a patient's tissue. Such implantable devices/sensors can be implanted at target locations in a patient, to stimulate areas such as the heart, brain, spinal cord, or muscle tissue, and/or to sense biological, physiological, chemical attributes of the blood, tissue, and other patient parameters. The propagating electromagnetic waves can be generated with sub-wavelength structures configured to manipulate evanescent fields outside of tissue to generate the propagating waves inside the tissue. Methods of use are also described.
    Type: Grant
    Filed: June 29, 2016
    Date of Patent: August 29, 2017
    Assignee: The Board of Trustees of the Leland Stanford Junior University
    Inventors: Ada Shuk Yan Poon, Alexander Jueshyan Yeh, Yuji Tanabe, John Ho, Sanghoek Kim
  • Wireless midfield systems and methods
    Patent number: 10843003
    Abstract: Implantable devices and/or sensors can be wirelessly powered by controlling and propagating electromagnetic waves in a patient's tissue. Such implantable devices/sensors can be implanted at target locations in a patient, to stimulate areas such as the heart, brain, spinal cord, or muscle tissue, and/or to sense biological, physiological, chemical attributes of the blood, tissue, and other patient parameters. The propagating electromagnetic waves can be generated with sub-wavelength structures configured to manipulate evanescent fields outside of tissue to generate the propagating waves inside the tissue. Methods of use are also described.
    Type: Grant
    Filed: February 12, 2019
    Date of Patent: November 24, 2020
    Assignee: The Board of Trustees of the Leland Stanford Junior University
    Inventors: Ada Shuk Yan Poon, Alexander Jueshyan Yeh, Yuji Tanabe, John Ho, Sanghoek Kim
  • Wireless power transmission for implantable medical devices
    Patent number: 8634928
    Abstract: Described is an apparatus and method for increasing a gain of a transmitted power signal in a wireless link when operating in a mid field wavelength that is within a range between wavelength/100 to 100*wavelength and within a medium having a complex impedance between a transmit antenna and a receive antenna. The apparatus and method maximize the gain in the wireless link using simultaneous conjugate matching, to increase power transfer within the transmitted power signal, wherein the simultaneous conjugate matching accounts for interaction between the transmit antenna and the receive antenna, including the complex impedance of the medium between the transmit antenna and the receive antenna.
    Type: Grant
    Filed: June 16, 2009
    Date of Patent: January 21, 2014
    Assignee: The Board of Trustees of The Leland Stanford Junior University
    Inventors: Stephen O'Driscoll, Ada Shuk Yan Poon, Teresa H. Meng
  • Wireless midfield systems and methods
    Patent number: 10322289
    Abstract: Implantable devices and/or sensors can be wirelessly powered by controlling and propagating electromagnetic waves in a patient's tissue. Such implantable devices/sensors can be implanted at target locations in a patient, to stimulate areas such as the heart, brain, spinal cord, or muscle tissue, and/or to sense biological, physiological, chemical attributes of the blood, tissue, and other patient parameters. The propagating electromagnetic waves can be generated with sub-wavelength structures configured to manipulate evanescent fields outside of tissue to generate the propagating waves inside the tissue. Methods of use are also described.
    Type: Grant
    Filed: November 17, 2017
    Date of Patent: June 18, 2019
    Assignee: The Board of Trustees of the Leland Stanford Junior University
    Inventors: Ada Shuk Yan Poon, Alexander Yeh, Yuji Tanabe, John Ho, Sanghoek Kim
  • Multi-element coupler for generation of electromagnetic energy
    Patent number: 9610457
    Abstract: Implantable devices and/or sensors can be wirelessly powered by controlling and propagating electromagnetic waves in a patient's tissue. Such implantable devices/sensors can be implanted at target locations in a patient, to stimulate areas such as the heart, brain, spinal cord, or muscle tissue, and/or to sense biological, physiological, chemical attributes of the blood, tissue, and other patient parameters. The propagating electromagnetic waves can be generated with sub-wavelength structures configured to manipulate evanescent fields outside of tissue to generate the propagating waves inside the tissue. Methods of use are also described.
    Type: Grant
    Filed: June 29, 2016
    Date of Patent: April 4, 2017
    Assignee: The Board of Trustees of the Leland Stanford Junior University
    Inventors: Ada Shuk Yan Poon, Alexander Jueshyan Yeh, Yuji Tanabe, John Ho, Sanghoek Kim
  • Wireless midfield systems and methods
    Patent number: 10940322
    Abstract: Implantable devices and/or sensors can be wirelessly powered by controlling and propagating electromagnetic waves in a patient's tissue. Such implantable devices/sensors can be implanted at target locations in a patient, to stimulate areas such as the heart, brain, spinal cord, or muscle tissue, and/or to sense biological, physiological, chemical attributes of the blood, tissue, and other patient parameters. The propagating electromagnetic waves can be generated with sub-wavelength structures configured to manipulate evanescent fields outside of tissue to generate the propagating waves inside the tissue. Methods of use are also described.
    Type: Grant
    Filed: February 12, 2019
    Date of Patent: March 9, 2021
    Assignee: The Board of Trustees of the Leland Stanford Junior University
    Inventors: Ada Shuk Yan Poon, Alexander Jueshyan Yeh, Yuji Tanabe, John Ho, Sanghoek Kim
  • Method of making and using an apparatus for a locomotive micro-implant using active electromagnetic propulsion
    Patent number: 8504138
    Abstract: The present inventions provide a locomotive implant for usage within a predetermined magnetic field that includes a capsule body; a wireless power receiver disposed within the capsule body; a plurality of switchable conductors having a predetermined pattern within the capsule body, each of the switchable conductors adapted to pass a current along a forward path to thereby create, in the presence of the predetermined magnetic field, a force and assist in moving the locomotive implant; and a controller adapted to receive directional control signals to control the switchable current wires or conductors. Methods of using the same are described.
    Type: Grant
    Filed: June 16, 2009
    Date of Patent: August 6, 2013
    Assignee: The Board of Trustees of the Leland Stanford Junior University
    Inventors: Daniel Michael Pivonka, Ada Shuk Yan Poon, Teresa H. Meng
  • Multi-element coupler for generation of electromagnetic energy
    Patent number: 9662507
    Abstract: Implantable devices and/or sensors can be wirelessly powered by controlling and propagating electromagnetic waves in a patient's tissue. Such implantable devices/sensors can be implanted at target locations in a patient, to stimulate areas such as the heart, brain, spinal cord, or muscle tissue, and/or to sense biological, physiological, chemical attributes of the blood, tissue, and other patient parameters. The propagating electromagnetic waves can be generated with sub-wavelength structures configured to manipulate evanescent fields outside of tissue to generate the propagating waves inside the tissue. Methods of use are also described.
    Type: Grant
    Filed: June 29, 2016
    Date of Patent: May 30, 2017
    Assignee: The Board of Trustees of the Leland Stanford Junior University
    Inventors: Ada Shuk Yan Poon, Alexander Jueshyan Yeh, Yuji Tanabe, John Ho, Sanghoek Kim
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