Energy Source Outside Generator Body Patents (Class 607/61)
  • Patent number: 10967192
    Abstract: A wearable article for receiving and retaining a charger for charging a medical device implanted into a patient includes a coil-assembly cavity and first and second controller cavities defined between first and second major surfaces of a body of the wearable article. The coil-assembly cavity is configured to retain a coil assembly of the charger, and the first and second controller cavities are each configured to receive at least a portion of a controller of the charger. A controller slit is defined along the first major surface and is open to both the first and second controller cavities. The first controller cavity is configured to receive at least a portion of the controller with a user interface of the controller extending or observable through the controller slit or disposed in the second controller cavity.
    Type: Grant
    Filed: December 21, 2018
    Date of Patent: April 6, 2021
    Assignee: Boston Scientific Neuromodulation Corporation
    Inventors: Mun Pook Lui, Erin Suzanne Roper, Joey Chen, Gaurav Gupta, Daniel Aghassian
  • Patent number: 10960219
    Abstract: A charging system for an Implantable Medical Device (IMD) is disclosed having a charging coil and one or more sense coils. The charging coil and one or more sense coils are preferably housed in a charging coil assembly coupled to an electronics module by a cable. The charging coil is preferably a wire winding, while the one or more sense coils are concentric with the charging coil and preferably formed in one or more traces of a circuit board. One or more voltages induced on the one or more sense coils can be used to determine whether the charging coil is (i) centered, (ii) not centered but not misaligned, or (iii) misaligned, with respect to the IMD being charged, which three conditions sequentially comprise lower coupling between the charging coil and the IMD. A charging algorithm is also disclosed that control charging dependent on these conditions.
    Type: Grant
    Filed: January 23, 2020
    Date of Patent: March 30, 2021
    Assignee: Boston Scientific Neuromodulation Corporation
    Inventors: Daniel Aghassian, Thomas W. Stouffer
  • Patent number: 10918376
    Abstract: The present disclosure is directed to a control unit for cooperating with an adhesive patch to convey power from a location external to a subject to a location within the subject. The control unit may include a housing configured for selective mounting on the adhesive patch and may further include at least one processor within the housing. The at least one processor may be configured to activate when the housing is mounted on the adhesive patch and to delay, for a predetermined amount of time following activation of the at least one processor, generation of therapeutic control signals for modulating at least one nerve in the subject's body.
    Type: Grant
    Filed: July 26, 2013
    Date of Patent: February 16, 2021
    Assignee: Nyxoah SA
    Inventor: Adi Mashiach
  • Patent number: 10898628
    Abstract: Present embodiments are directed to measuring and calculating parameters to control and monitor a power transfer in an implanted medical device. The medical device may be implanted in a subject and typically includes an artificial heart or ventricle assist device. The system measures parameters and uses the parameters to calculate a coupling coefficient for coils that transfer power between an external primary and an implanted secondary. The system uses the calculated coupling coefficient to estimate heat flux being generated in the system. Based on the level heat flux detected, the system may issue alerts to warn the subject or control actions to mitigate the effects of the heat flux.
    Type: Grant
    Filed: December 11, 2018
    Date of Patent: January 26, 2021
    Assignee: Minnetronix, Inc.
    Inventors: Vlad Bluvshtein, Lori Lucke
  • Patent number: 10888706
    Abstract: An external charging system for an Implantable Medical Device (IMD) is disclosed having a thermal diffuser proximate to the primary charging coil for distributing heat from the primary charging coil. In an example, the primary charging coil is mounted to a first side of a circuit board, and the thermal diffuser is also connected to the first side and in contact with the primary charging coil. In one example, the thermal diffuser is a plastic material, such as an acrylic pad, with a high thermal conductivity and a low electrical conductivity. The thermal diffuser may also contact temperature sensors mounted to the first side of the circuit board.
    Type: Grant
    Filed: March 28, 2018
    Date of Patent: January 12, 2021
    Assignee: Boston Scientific Neuromodulation Corporation
    Inventors: Robert J. Stinauer, Joey Chen
  • Patent number: 10874479
    Abstract: A medical device for supplying feedback information when implanted in the body of a patient is provided. The medical device is arranged to monitor or control a physiological function or defect in the body of the patient, the medical device comprises: a radio frequency identification (RFID) transmitter arranged to transmit feedback information from the implanted medical device, wherein the RFID transmitter is arranged to receive interrogating signals from an external device and in response thereto transmit feedback information.
    Type: Grant
    Filed: March 22, 2019
    Date of Patent: December 29, 2020
    Inventor: Peter Forsell
  • Patent number: 10814807
    Abstract: A wireless charger for a mobile terminal in a vehicle includes a power transmitter configured to wirelessly transmit power to a first mobile terminal and a processor configured to acquire model information of the first mobile terminal and to adjust parameters of the power based on the model information.
    Type: Grant
    Filed: January 3, 2018
    Date of Patent: October 27, 2020
    Assignee: LG Electronics Inc.
    Inventor: Younghak Lee
  • Patent number: 10813744
    Abstract: An intraocular implant (IOI) includes a lens structure with variable optical power, a sensor that detects an optical accommodation response, a rechargeable power storage device, a recharging interface, a wireless communication interface, and a controller. The controller can receive information from the sensor indicating an optical accommodation response, control the lens structure to vary the variable optical power based on the information received from the sensor, control the recharging interface to recharge the rechargeable power storage device, and further control the recharging interface to receive power for operation of the IOI, and transmit and receive information through the wireless communication interface.
    Type: Grant
    Filed: September 3, 2015
    Date of Patent: October 27, 2020
    Assignees: Greatbatch Ltd., Elenza, Inc.
    Inventors: Amitava Gupta, Rudy Mazzocchi, Roel Trip, Brian Peterson, George Cintra, Joey Chen, Leslie Halberg
  • Patent number: 10727684
    Abstract: A wireless power transmitter includes a converter, a resonator, and a controller. The converter includes switching elements forming a bridge circuit, and is configured to output an alternating current (AC) voltage in response to control signals. The resonator includes a resonant capacitor and a resonant coil, and is configured to receive the AC voltage to wirelessly transmit power. The controller is configured to perform a first mode operation in which a duty of the control signals is fixed, a frequency of one of the control signals is varied and the control signals are output, and a second mode operation in which a frequency of the control signals is fixed, a duty of one of the control signals is reduced and the control signals are output.
    Type: Grant
    Filed: September 7, 2017
    Date of Patent: July 28, 2020
    Assignee: WITS Co., Ltd.
    Inventors: Jung Ho Son, Keun Soo Ha, Yun Ki Hong, Seung Won Park, Eun Young Shin, Dae Sik Kim
  • Patent number: 10707692
    Abstract: Systems, devices and methods are disclosed that allow recharging a power source located in an implanted medical device implanted in a patient, the recharging device comprising first and second pairs of electrical coils configured to generate first and second uniform magnetic fields in overlapping first and second cylindrical regions located between the respective pairs of electrical coils.
    Type: Grant
    Filed: January 26, 2017
    Date of Patent: July 7, 2020
    Assignee: Medtronic, Inc.
    Inventors: Craig L. Schmidt, Gordon O. Munns
  • Patent number: 10695476
    Abstract: Methods and apparatus for wireless power transfer and communications are provided. In one embodiment, a wireless power transfer system comprises an external transmit resonator configured to transmit wireless power, an implantable receive resonator configured to receive the transmitted wireless power from the transmit resonator, and a user interface device comprising a resonant coil circuit, the resonant coil circuit being configured to receive magnetic communication signals from the transmit resonator or the receive resonator and to display information relating to the magnetic communication signals to a user of the user interface device.
    Type: Grant
    Filed: November 11, 2014
    Date of Patent: June 30, 2020
    Assignee: TC1 LLC
    Inventor: John Freddy Hansen
  • Patent number: 10682521
    Abstract: Devices, systems and methods for transcutaneous charging of implanted medical devices are provided herein. Such devices include a portable charging device and an attachment device for affixing the portable charging device to a skin of the patient in a suitable location and alignment over the implanted medical device to facilitate charging. The attachment device can include a frame having an opening through which the charging device is mounted and one or more tabs extending laterally from the opening, each tab including an adhesive surface and being movable from a first position extending away from a skin of the patient to facilitate positioning of the charging device and a second position extending toward the skin of the patient so as to engage the skin of the patient and affix the charging device to the patient after being properly positioned.
    Type: Grant
    Filed: January 11, 2016
    Date of Patent: June 16, 2020
    Assignee: AXONICS MODULATION TECHNOLOGIES, INC.
    Inventors: Guangqiang Jiang, Dennis Schroeder, Raymond W. Cohen
  • Patent number: 10668197
    Abstract: An improved wireless transmission system for transferring power over a distance. The system includes a transmitter generating a magnetic field and a receiver for inducing a voltage in response to the magnetic field. In various respects, the receiver is configured to be implanted in a body. The receiver may include a housing enclosing a receiving coil and associated electronic components, a covering around at least a portion of the housing, and at least two wires wrapped around the housing to form a plurality of turns. The covering may be formed of a ferrite material configured to both magnetically shield a respective portion of the internal volume of the housing and redirect incoming magnetic flux from the transmitter to improve efficiency. Methods of use are also provided.
    Type: Grant
    Filed: February 14, 2019
    Date of Patent: June 2, 2020
    Assignee: TC1 LLC
    Inventor: John Freddy Hansen
  • Patent number: 10652667
    Abstract: The present disclosure relates generally to devices, systems, and methods for supporting different load conditions in a data/power link. In one example, a device includes a transformer that has a first tap with a first turns ratio and a second tap with a second turns ratio. The device further includes electronics and circuitry. The circuitry is configured to selectively couple the electronics to the first tap of the transformer for a first application and to couple the electronics to the second tap of the transformer for a second application.
    Type: Grant
    Filed: September 8, 2017
    Date of Patent: May 12, 2020
    Assignee: COCHLEAR LIMITED
    Inventors: Andrew Fort, Werner Meskens
  • Patent number: 10632317
    Abstract: Embodiments presented herein are generally directed to techniques for separately transferring power and data from an external device to an implantable component of a partially or fully implantable medical device. The separated power and data transfer techniques use a single external coil and a single implantable coil. The external coil is part of an external resonant circuit, while the implantable coil is part of an implantable resonant circuit. The external coil is configured to transcutaneously transfer power and data to the implantable coil using separate (different) power and data time slots. At least one of the external or internal resonant circuit is substantially more damped during the data time slot than during the power time slot.
    Type: Grant
    Filed: May 12, 2017
    Date of Patent: April 28, 2020
    Assignee: COCHLEAR LIMITED
    Inventor: Werner Meskens
  • Patent number: 10636566
    Abstract: Systems and methods for wireless energy transfer are described. A transmitter unit has a transmitter resonator with a coil that is coupled to a power supply to wirelessly transmit power to a receiver unit. A receiver unit has a receiver resonator with a coil coupled to a device load. At least one of the resonators is a malleable, non-planar resonator that can be bent and shaped to conform to a patient's anatomy.
    Type: Grant
    Filed: June 26, 2019
    Date of Patent: April 28, 2020
    Assignee: TC1 LLC
    Inventors: Carine Hoarau, Steven Reichenbach, Don Hannula
  • Patent number: 10632319
    Abstract: A charging system for an Implantable Medical Device (IMD) is disclosed having a charging coil and one or more sense coils preferably housed in a charging coil assembly coupled to an electronics module by a cable. The charging coil is preferably a wire winding, while the sense coils are preferably formed in one or more traces of a circuit board. One or more voltages induced on the one or more sense coils can be used to determine a phase angle between the voltage and a driving signal for the charging coil. The determined phase angle can then be used to determine the position of the charging coil relative to the IMD. Additionally, more than one parameter (phase angle, magnitude, resonant frequency) may be determined using the voltage may be used to determine position, including the radial offset and depth of the charging coil relative to the IMD.
    Type: Grant
    Filed: June 17, 2019
    Date of Patent: April 28, 2020
    Assignee: Boston Scientific Neuromodulation Corporation
    Inventors: Daniel Aghassian, Thomas W. Stouffer, Jonathan Larcom, Gaurav Gupta
  • Patent number: 10615709
    Abstract: A rectifier for wireless power transfer is disclosed.
    Type: Grant
    Filed: February 2, 2016
    Date of Patent: April 7, 2020
    Assignee: DRAYSON TECHNOLOGIES (EUROPE) LIMITED
    Inventors: Samer Aldhaher, Manuel Pinuela Rangel, Paul David Mitcheson, David Christopher Yates
  • Patent number: 10589108
    Abstract: A system for providing energy to a bio-implantable medical device includes an acoustic energy delivery device and a bio-implantable electroacoustical energy converter. The acoustic energy delivery device generates acoustic energy with a multi-dimensional array of transmitting electroacoustical transducers. The acoustic energy is received by one or more receiving electroacoustical transducers in the bio-implantable electroacoustical energy converter. The receiving electroacoustical transducers convert the acoustic energy to electrical energy to power the bio-implantable medical device directly or indirectly. An external alignment system provides lateral and/or angular positioning of an ultrasound energy transmitter over an ultrasound energy receiver. The acoustic energy transmitter alignment system comprises either or both x-y-z plus angular positioning components, and/or a substantially multi-dimensional array of transmitters plus position sensors in both the transmitter and receiver units.
    Type: Grant
    Filed: February 27, 2019
    Date of Patent: March 17, 2020
    Assignee: Piezo Energy Technologies LLC
    Inventors: Leon J. Radziemski, Inder Raj Singh Makin, Harry Jabs, Juan Carlos Lopez Tonazzi
  • Patent number: 10505399
    Abstract: An apparatus for the contactless, inductive transmission of energy from a primary portion a secondary portion includes at least one coil in each portion which are inductively coupled to each other. The primary portion and the secondary portion include at least one magnetic field sensor and are arranged to determine a position of the secondary portion relative to the primary portion using a magnetic field generated by the coils and measured with the aid of the magnetic field sensor.
    Type: Grant
    Filed: April 8, 2016
    Date of Patent: December 10, 2019
    Assignee: Weidmüller Interface GmbH & Co. KG
    Inventors: Andreas Steinmetz, Olaf Grünberg
  • Patent number: 10505575
    Abstract: The present invention is disclosing a smart wearable accessory that comprises a belt portion and a buckle portion. Belt portion has a first end and a second end, and comprises a first set of output devices positioned at one or more points. Buckle portion has a housing upon which a mobile device is mounted. Housing comprises one or more sensors that generate a signal when non-contact time duration of said mobile device unmounted from said housing exceeds a first threshold value, and proximity distance between said one or more sensors and said unmounted mobile device exceeds a second threshold value. Housing further comprises a charging terminal that is electrically connectable with said mobile device, and a second set of output devices. Housing further comprises a microprocessor that activates said first and/or said second set of output devices based on said signal received from said one or more sensors.
    Type: Grant
    Filed: January 10, 2019
    Date of Patent: December 10, 2019
    Inventor: Waterloo Cherenfant
  • Patent number: 10491027
    Abstract: Techniques for modifying the electrical current distribution of transmit coil of a wireless power transmitting unit are described. An example power transmitting unit includes a transmit coil configured to generate a magnetic field to wirelessly power a device within an active wireless charging area. The power transmitting unit can also include a power source to transmit an alternating electrical current to an input terminal of the transmit coil and a plurality of reactive elements placed in series with the transmit coil. In some examples, the plurality of reactive elements attach to the transmit coil at least a quarter of a turn from the input terminal. The power transmitting unit can also include a controller to modify a reactance value of the reactive elements to adjust a current distribution of the transmit coil in response to detecting a characteristic of a power receiving unit.
    Type: Grant
    Filed: April 1, 2016
    Date of Patent: November 26, 2019
    Assignee: Intel Corporation
    Inventors: Essam Elkhouly, Songnan Yang, Zhen Yao
  • Patent number: 10491041
    Abstract: Embodiments disclosed herein describe a wireless power receiving system for an electronic device includes: a first inductor coil configured to receive power primarily at a first frequency and from magnetic fields propagating in a first direction; and a second inductor coil configured to receive power primarily at a second frequency and from magnetic fields propagating in a second direction, wherein the first frequency is different than the second frequency.
    Type: Grant
    Filed: September 5, 2018
    Date of Patent: November 26, 2019
    Assignee: Apple Inc.
    Inventors: Michael B. Wittenberg, Makiko K. Brzezinski, Stefan A. Kowalski, Christopher S. Graham, Morgan T. McClure, Erik G. de Jong, Trevor J. Ness, Peter J. Kardassakis, Jayesh Nath, Adam T. Clavelle, Rex Tyler Ehman
  • Patent number: 10483024
    Abstract: A coil electronic component including: a substrate; a coil pattern disposed on at least one surface of the substrate; a body filling at least a core area of the coil pattern and containing a magnetic material; and a magnetic flux controller disposed at an outer surface of the body to correspond to the core area and containing a magnetic material which has a permittivity value higher than that of the magnetic material of the body.
    Type: Grant
    Filed: April 1, 2016
    Date of Patent: November 19, 2019
    Assignee: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventor: Dong Jin Jeong
  • Patent number: 10469963
    Abstract: An external portion of an auditory prosthesis includes magnets, electronics, and other components. In bone conduction auditory prostheses, reducing the amount of mass subject to vibrations in an auditory prosthesis has a positive effect on tuning of the device. One way of reducing such mass is to resiliently more massive components within the auditory prosthesis housing. Such resilient mounting reduces the dampening effect that these massive components have on vibrations generated by the prosthesis. When electronic components are suspended, feedback to said components is also reduced, resulting improved performance.
    Type: Grant
    Filed: August 21, 2015
    Date of Patent: November 5, 2019
    Assignee: COCHLEAR LIMITED
    Inventors: Marcus Andersson, Johan Gustafsson, Dan Nyström, Henrik Fyrlund
  • Patent number: 10454530
    Abstract: A near-field communication circuit includes an oscillating circuit having a controllable capacitor. A control circuit is coupled to the oscillating circuit to control the controllable capacitor. A battery is coupled to the control circuit to enable control when the near-field communication circuit is in a standby mode. The near-field communication circuit can be utilized by a mobile communication device.
    Type: Grant
    Filed: August 13, 2018
    Date of Patent: October 22, 2019
    Assignee: STMicroelectronics (Rousset) SAS
    Inventor: Alexandre Tramoni
  • Patent number: 10449377
    Abstract: Systems and devices for a high-efficiency magnetic link for implantable devices are disclosed herein. These devices can include a charging coil located in the implantable device and a charging coil located in a charge head of a charger. The charging coils can each include an elongate core and wire windings wrapped around a longitudinal axis of the elongate core. The charging coil of the charge head can be attached to a rotatable mount, which can be used to align the longitudinal axis of the charging coil of the charge head with longitudinal axis of the implantable device such that the axes of the charging coils are parallel.
    Type: Grant
    Filed: November 20, 2017
    Date of Patent: October 22, 2019
    Assignee: THE ALFRED E. MANN FOUNDATION FOR SCIENTIFIC RESEARCH
    Inventors: Brian R. Dearden, Glen A. Griffith
  • Patent number: 10441344
    Abstract: A surgical apparatus for facilitating testing nerves during HF surgery. The surgical apparatus comprises a converter for converting a high-frequency treatment current into a nerve stimulating current. A controllable selector switch optionally feeds either the treatment current or the nerve stimulating current to the electrosurgical instrument.
    Type: Grant
    Filed: April 7, 2009
    Date of Patent: October 15, 2019
    Assignee: ERBE ELEKTROMEDIZIN GMBH
    Inventors: Juergen Notz, Juergen Beller
  • Patent number: 10426371
    Abstract: An object of the present disclosure is to provide a muscle condition measurement sheet that can quantitatively detect the amplitude and latency of an evoked electromyogram EMG or an evoked mechanomyogram MMG and correctly evaluate the state of activity of a muscle. A pair of stimulating electrodes and all myoelectric detection electrodes come into intimate contact with a body surface of a muscle, appearing on a back surface of an insulating sheet spaced at predetermined intervals; accordingly, the relative position between an electrical stimulation position and the myoelectric detection electrode is fixed and the amplitude and latency of the evoked electromyogram EMG can be quantitatively detected without depending on the stimulation position of an electrical stimulation signal.
    Type: Grant
    Filed: February 15, 2017
    Date of Patent: October 1, 2019
    Assignees: SMK Corporation, Umemura Educational Institutions
    Inventors: Kohei Watanabe, Koichiro Ejiri, Haruhiko Kondo, Tsubasa Tanaka
  • Patent number: 10411493
    Abstract: Certain aspects of the present disclosure are generally directed to apparatus and techniques for wireless charging. One example apparatus generally includes a plurality of inductive elements and signal generation circuitry coupled to the plurality of inductive elements and configured to generate a plurality of signals, where at least two signals of the plurality of signals have different magnitudes. In certain aspects, the signal generation circuitry is configured to drive the plurality of inductive elements using the plurality of signals, where at least one first inductive element of the plurality of inductive elements is driven using at least one first signal of the plurality of signals having a first phase and at least one second inductive element of the plurality of inductive elements is driven using at least one second signal of the plurality of signals having a second phase different from the first phase.
    Type: Grant
    Filed: May 17, 2017
    Date of Patent: September 10, 2019
    Assignee: QUALCOMM Incorporated
    Inventors: William Henry Von Novak, III, Mark White, II, Seong Heon Jeong
  • Patent number: 10397715
    Abstract: A method performed by a device includes generating a first signal in accordance with a first set of one or more operational settings, and determining whether the signal has an acceptable data integrity. If the device determines that the signal has an acceptable data integrity, the method includes maintaining a configuration of the device with the first set of one or more operational settings. If the device determines that the signal does not have an acceptable data integrity, then the method includes automatically configuring the device with a second set of one or more operational settings. The configuration of the device ith the first set of one or more operational settings is associated with greater power efficiency than the configuration of the device with the second set of one or more operational settings.
    Type: Grant
    Filed: May 1, 2018
    Date of Patent: August 27, 2019
    Assignee: Cochlear Limited
    Inventor: Andrew D. Fort
  • Patent number: 10369275
    Abstract: A mechanism for transferring energy from an external power source to an implantable medical device is disclosed. A sensor may be used to measure a parameter that correlates to a temperature of the system that occurs during the transcutaneous coupling of energy. For example, the sensor may measure temperature of a surface of an antenna of the external power source. The measured parameter may then be compared to a programmable limit. A control circuit such as may be provided by the external power source may then control the temperature based on the comparison. The programmable limit may be, for example, under software control so that the temperature occurring during transcutaneous coupling of energy may be modified to fit then-current circumstances.
    Type: Grant
    Filed: October 16, 2017
    Date of Patent: August 6, 2019
    Assignee: Medtronic, Inc.
    Inventors: David P. Olson, William C. Phillips, Andrew L. Schmeling
  • Patent number: 10373756
    Abstract: Systems and methods for wireless energy transfer are described. A transmitter unit has a transmitter resonator with a coil that is coupled to a power supply to wirelessly transmit power to a receiver unit. A receiver unit has a receiver resonator with a coil coupled to a device load. At least one of the resonators is a malleable, non-planar resonator that can be bent and shaped to conform to a patient's anatomy.
    Type: Grant
    Filed: March 17, 2014
    Date of Patent: August 6, 2019
    Assignee: TC1 LLC
    Inventors: Carine Hoarau, Steven Reichenbach, Don Hannula
  • Patent number: 10357659
    Abstract: An external charger includes at least one coil antenna, comprised of one or more loops of wire, and a coil excitation system connected to the at least one coil antenna. The coil excitation system is configured to drive the one or more loops or wire with alternating current to generate a magnetic field that is configured to induce current in at least one implantable coil of an implantable medical device. The external charger also includes an electrical non-conductive safeguard enclosure disposed around the one or more loops of wire. The coil safeguard enclosure is configured to prevent the implantable medical device from being positioned within a predetermined vicinity of the one or more loops of wire.
    Type: Grant
    Filed: May 18, 2017
    Date of Patent: July 23, 2019
    Assignee: COCHLEAR LIMITED
    Inventor: Werner Meskens
  • Patent number: 10350420
    Abstract: Improved external chargers for charging an implantable medical device, and particularly useful in charging a plurality of such devices, are disclosed. Each of the various embodiments include a plurality of field customization coils for customizing the magnetic charging field generated by the external charger such that the magnetic charging field is not radially symmetric. For example, one embodiment includes a primary coil with a plurality of field customization coils distributed radially with respect to the coil. The generated magnetic charging field can be rendered radially asymmetric by selectively activating or disabling the field customization coils in response to data quantifying the coupling between the various implants and the field customization coils in the charger.
    Type: Grant
    Filed: June 6, 2017
    Date of Patent: July 16, 2019
    Assignee: Boston Scientific Neuromodulation Corporation
    Inventors: Rafael Carbunaru, Andrew DiGiore, Todd Whitehurst
  • Patent number: 10333352
    Abstract: Certain aspects of the present disclosure relate to methods and apparatus for controlling a power level of wireless power transfer. Certain aspects provide a wireless power receiver. The wireless power receiver includes an antenna and a rectifier. The rectifier includes a first diode and a second diode. The wireless power receiver further includes a resistor in parallel with the first diode. A first terminal of the resistor is coupled to a first terminal of the first diode. A second terminal of the resistor is coupled to a second terminal of the first diode.
    Type: Grant
    Filed: August 19, 2016
    Date of Patent: June 25, 2019
    Assignee: QUALCOMM Incorporated
    Inventors: William Henry Von Novak, III, Linda Stacey Irish, Cody Burton Wheeland, Seong Heon Jeong
  • Patent number: 10300276
    Abstract: A cochlear implant is disclosed including a cochlear lead, an antenna, a stimulation processor, a magnet apparatus, associated with the antenna, including a case, a divider, and a plurality of magnetic material particles that are movable relative to one another within sub-volumes defined by the divider.
    Type: Grant
    Filed: May 24, 2016
    Date of Patent: May 28, 2019
    Assignee: Advanced Bionics AG
    Inventors: Sung Jin Lee, James George Elcoate Smith
  • Patent number: 10293173
    Abstract: A method and system for supplying energy to an electrically operable medical device (100) implanted in a patient. Wireless energy is transferred from an external energy source (104) located outside the patient to an internal energy receiver (102) located inside the patient and connected to the medical device. An internal control unit (108) determines an amount of energy currently required for the operation of said medical device. A control signal is transmitted to the external energy source, reflecting the required amount of energy. An external control unit (106) controls the amount of transferred energy in response to the control signal, by adjusting the energy transfer efficiency from the external energy source to the internal energy receiver. The energy transfer efficiency is adjusted by adjusting the position of a primary coil, serving as the external energy source, relative to an implanted secondary coil, serving as the internal energy source.
    Type: Grant
    Filed: September 27, 2016
    Date of Patent: May 21, 2019
    Inventor: Forsell Peter
  • Patent number: 10286206
    Abstract: An electrode cuff includes a first elongate portion and a second elongate portion. The first elongate portion is configured to removably contact a length of a nerve while the second elongate portion extends outwardly at an angle relative to a first side edge of the first elongate portion to at least partially wrap about the nerve. The electrode cuff includes a first series of electrodes that is spaced apart longitudinally along the first elongate portion. A width of the second elongate portion is sized to fit between adjacent branches extending from a nerve.
    Type: Grant
    Filed: January 13, 2015
    Date of Patent: May 14, 2019
    Assignee: Inspire Medical Systems, Inc.
    Inventors: Blake D. Johnson, Mark Christopherson, John Rondoni, Quan Ni
  • Patent number: 10265533
    Abstract: Presented herein are techniques for protecting an implantable component of a medical device from the buildup of excessive heat following a charging process. In one embodiment, the implantable component includes a resonant tank circuit that includes an implantable coil that receives power from the external charging device via an inductive link. The implantable component includes a rechargeable battery that is electrically connected to the resonant tank circuit and that can be recharged using the power received from the external charging device. A controller in the implantable component is configured to determine when charging of the rechargeable battery should be terminated and, in response, detune the resonant tank circuit in accordance with a predetermined pattern to signal to the external charging device that charging of the rechargeable battery should be terminated.
    Type: Grant
    Filed: March 22, 2017
    Date of Patent: April 23, 2019
    Assignee: COCHLEAR LIMITED
    Inventors: Werner Meskens, Oliver John Ridler, Robert Graham Bennett
  • Patent number: 10258804
    Abstract: Devices, systems, and techniques are configured for cooling tissue during recharge of an implantable medical device (IMD) battery. In one example, a method includes charging, by an inductive charger, a rechargeable battery of an implantable medical device (IMD) within a patient, wherein the IMD comprises a housing that houses the rechargeable battery, and wherein a primary coil of the inductive charger is positioned above a region of skin of the patient proximate to the IMD. The example method further includes cooling, by a heat exchanger, the region of skin below a normal ambient surface temperature of the region of skin, wherein the heat exchanger is interposed between the primary coil and the region of skin.
    Type: Grant
    Filed: November 4, 2016
    Date of Patent: April 16, 2019
    Assignee: Medtronic, Inc.
    Inventors: Erik R. Scott, Kunal Paralikar
  • Patent number: 10251987
    Abstract: An improved wireless transmission system for transferring power over a distance. The system includes a transmitter generating a magnetic field and a receiver for inducing a voltage in response to the magnetic field. In various respects, the receiver is configured to be implanted in a body. The receiver may include a housing enclosing a receiving coil and associated electronic components, a covering around at least a portion of the housing, and at least two wires wrapped around the housing to form a plurality of turns. The covering may be formed of a ferrite material configured to both magnetically shield a respective portion of the internal volume of the housing and redirect incoming magnetic flux from the transmitter to improve efficiency. Methods of use are also provided.
    Type: Grant
    Filed: July 29, 2013
    Date of Patent: April 9, 2019
    Assignee: TC1 LLC
    Inventor: John Freddy Hansen
  • Patent number: 10226636
    Abstract: Devices, systems, and techniques for estimating energy transfer to tissue of a patient during battery charging for an implantable medical device are disclosed. Implantable medical devices may include a rechargeable power source that can be transcutaneously charged. An external charging device may calculate an estimated energy transfer to tissue of the patient that may include a resistive heat loss from the rechargeable power source and/or electromagnetic energy transfer directly to tissue. Based on the estimated energy transfer, the external charging device may select a power level for charging of the rechargeable power source. In one example, the charging device may select a high power level when the estimated energy transfer has not exceeded an energy transfer threshold and select a low power level when the estimated energy transfer has exceeded the energy transfer threshold.
    Type: Grant
    Filed: April 22, 2016
    Date of Patent: March 12, 2019
    Assignee: Medtronic, Inc.
    Inventors: Venkat R. Gaddam, Reid K. Bornhoft, David P. Olson, Prabhakar A. Tamirisa
  • Patent number: 10213538
    Abstract: An implant device includes a housing and an energy receiving element disposed in the housing. The energy receiving element is configured to be electrically connected to an energy-consuming device. The implant device is configured to be mounted within a body of a human or non-human animal. The housing includes a feature configured to be accessible through skin of the animal and to receive a corresponding mating member of an external charger including an energy transmitting element. The energy receiving element is configured to receive energy wirelessly from the energy transmitting element when the external charger is mated with the housing.
    Type: Grant
    Filed: September 17, 2015
    Date of Patent: February 26, 2019
    Assignee: HeartWare, Inc.
    Inventor: John Rudser
  • Patent number: 10199852
    Abstract: In one aspect of the invention, a method of charging a medical device includes receiving radiofrequency signals from a remote machine remote from the medical device via a receiver of the medical device. The method includes converting the radiofrequency signals into electrical energy via a generator of the medical device. The method includes storing the electrical energy in an energy cell of the medical device. The method also includes powering a power consumption component of the medical device by transmitting the energy from the energy cell to the power consumption component.
    Type: Grant
    Filed: November 13, 2015
    Date of Patent: February 5, 2019
    Assignee: Fresenius Medical Care Holdings, Inc.
    Inventors: Donovan Halliburton, Alexander Joseph Brown, Kelly Yik
  • Patent number: 10170937
    Abstract: In one aspect, an apparatus for wireless receiving power comprises a receive circuit configured to receive wireless power via a magnetic field sufficient to power or charge a load. The apparatus further comprises a tuning circuit comprising a variable reactive element, coupled to the receive circuit, and configured to detune the receive circuit away from a resonant frequency to adjust an output power level to a first output power level. The apparatus comprises a rectifier, comprising a switch, coupled to the receive circuit and configured to rectify an alternating current to a direct current for supplying power to the load. The apparatus comprises a drive circuit configured to actuate the switch when a current through the switch satisfies a first non-zero current value and adjust the first non-zero current value to a second non-zero value to adjust the first output power level to a second output power level.
    Type: Grant
    Filed: March 30, 2016
    Date of Patent: January 1, 2019
    Assignee: QUALCOMM Incorporated
    Inventor: Paolo Menegoli
  • Patent number: 10137304
    Abstract: Techniques are described in this disclosure for delivering electrical stimulation therapy to a patient over multiple channels, with independent rate control for each channel, using a single stimulation generator. In one example, the disclosure describes a method for delivering electrical stimulation therapy to a patient that includes delivering first electrical stimulation pulses at a first programmed rate on a first channel using a stimulation generator, and delivering second electrical stimulation pulses at a second programmed rate on a second channel using the stimulation generator, the second programmed rate being different than the first programmed rate, and the second programmed rate being independent of the first programmed rate.
    Type: Grant
    Filed: January 27, 2010
    Date of Patent: November 27, 2018
    Assignee: Medtronic, Inc.
    Inventor: Todd A. Kallmyer
  • Patent number: 10135296
    Abstract: A coil structure for wireless power transmissions includes: a body having a cylindrical shape; an upper transmission coil formed on the body and configured to generate an electromagnetic field passing through an upper surface of the body; and at least one side transmission coil formed on the body and configured to generate an electromagnetic field passing through a side surface of the body.
    Type: Grant
    Filed: February 22, 2016
    Date of Patent: November 20, 2018
    Assignee: Samsung Electro-Mechanics Co., Ltd.
    Inventors: In Wha Jeong, Jong Heum Park, Hugh Kim
  • Patent number: 10132650
    Abstract: A wireless power transmitter may include a transmit coil configured to generate a wireless power signal for wireless power transfer, at least one secondary sensing coil configured to generate a signal responsive to a magnetic flux field generated during the wireless power transfer, and control logic configured to detect at least one condition of a wireless power transfer system responsive to detecting distortion in the magnetic flux field from the at least one signal received from the secondary sensing coil. A related method may include generating with a wireless power transmitter a wireless power signal, generating with a plurality of secondary sensing coils one or more signals responsive to a magnetic flux field generated during the wireless power transfer, and detecting at least one condition of a wireless power transfer system responsive to the one or more signals generated by the plurality of secondary sensing coils.
    Type: Grant
    Filed: January 22, 2015
    Date of Patent: November 20, 2018
    Assignee: Integrated Device Technology, Inc.
    Inventors: Gustavo J. Mehas, David F. Wilson, Nicholaus W. Smith
  • Patent number: 10118054
    Abstract: Described herein is an implantable device having a sensor configured to detect an amount of an analyte, a pH, a temperature, strain, or a pressure; and an ultrasonic transducer with a length of about 5 mm or less in the longest dimension, configured to receive current modulated based on the analyte amount, the pH, the temperature, or the pressure detected by the sensor, and emit an ultrasonic backscatter based on the received current. The implantable device can be implanted in a subject, such as an animal or a plant. Also described herein are systems including one or more implantable devices and an interrogator comprising one or more ultrasonic transducers configured to transmit ultrasonic waves to the one or more implantable devices or receive ultrasonic backscatter from the one or more implantable devices. Also described are methods of detecting an amount of an analyte, a pH, a temperature, a strain, or a pressure.
    Type: Grant
    Filed: September 12, 2017
    Date of Patent: November 6, 2018
    Assignee: The Regents of the University of California
    Inventors: Michel M. Maharbiz, Jose M. Carmena, Mekhail Anwar, Burak A. Ozilgen, Dongjin Seo, Federica Fava