Patents by Inventor Joey Chen

Joey Chen 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: 10456574
    Abstract: A medical device includes telemetry circuitry configured to receive programming instructions. The medical device also includes stimulation circuitry configured to generate a plurality of electrical pulses in response to the programming instructions to provide an electrical stimulation therapy for a patient. The stimulation circuitry includes a voltage converter, a multiplexor, and a stimulation driver. At least one of the voltage converter, the multiplexer, or the stimulation driver is selectively enabled and disabled during or between the electrical pulses to reduce power consumption of the medical device.
    Type: Grant
    Filed: May 15, 2017
    Date of Patent: October 29, 2019
    Assignee: GREATBATCH, LTD.
    Inventors: Joey Chen, Kerry Bradley, Leslie Halberg
  • Publication number: 20190263468
    Abstract: Various personal mobility vehicles, such as scooters, are disclosed. The scooter can include at least one battery and motor for powering at least one driven wheel. The vehicle can include a gear assembly to convert a torque produced by the motor to a different torque to a driven shaft to power the at least one driven wheel. The battery can be removable.
    Type: Application
    Filed: January 31, 2019
    Publication date: August 29, 2019
    Inventors: Joey Chih-Wei Huang, Robert Chen
  • Patent number: 10384054
    Abstract: A medical device for providing an electrical stimulation therapy for a patient includes a microcontroller configured to generate a plurality of electrical pulses and a control signal. The medical device includes a stimulation driver coupled to the microcontroller. The stimulation driver is configured to amplify the electrical pulses into amplified electrical pulses to be delivered to the patient as a part of the electrical stimulation therapy. The medical device includes a battery configured to supply a first voltage. The medical device includes a voltage up-converter coupled between the battery and the stimulation driver. The voltage up-converter is configured to convert, in response to the control signal from the microcontroller, the first voltage to a compliance voltage for the stimulation driver. The compliance voltage is a fraction of the first voltage, and the fraction is greater than 1.
    Type: Grant
    Filed: May 1, 2017
    Date of Patent: August 20, 2019
    Assignee: GREATBATCH LTD.
    Inventor: Joey Chen
  • Patent number: 10376688
    Abstract: In various examples, an apparatus includes a neurostimulation interconnection apparatus including an elongate lead body including a lead proximal end and a lead distal end. The lead proximal end includes a first connector portion. A stimulation device includes a header. The header includes a second connector portion including a shape complementary to a shape of the first connector portion. The first connector portion is mateably engageable with the second connector portion, wherein one of the first connector portion and the second connector portion includes a plurality of pins and the other of the first connector portion and the second connector portion includes a plurality of sockets. There are an equal number of sockets and pins, wherein, with the first connector portion mateably engaged with the second connector portion, the pins align and electrically couple with the sockets.
    Type: Grant
    Filed: November 18, 2016
    Date of Patent: August 13, 2019
    Assignee: Greatbatch Ltd.
    Inventors: Joey Chen, Leslie I. Halberg
  • Publication number: 20190201700
    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: Application
    Filed: December 21, 2018
    Publication date: July 4, 2019
    Inventors: Mun Pook Lui, Erin Suzanne Roper, Joey Chen, Gaurav Gupta, Daniel Aghassian
  • Publication number: 20190175925
    Abstract: An external device for use with an implantable medical device includes circuitry that is configured to drive a coil to produce a static electromagnetic field to change a status of the implantable medical device. The static electromagnetic field may replace a physical magnet, which may not be commonly carried by a patient, to induce an emergency shutdown of the implantable medical device. The external device may be a charger or controller that is used to charge or communicate with the implantable medical device, and the coil may primarily be used for those charging and telemetry functions in such devices.
    Type: Application
    Filed: October 17, 2018
    Publication date: June 13, 2019
    Inventor: Joey Chen
  • Publication number: 20190070421
    Abstract: A system for providing therapy to a patient using an implantable medical device (IMD) and an external charger for charging the IMD is disclosed. The external charger and/or the IMD are powered using supercapacitors, which have much higher power densities and discharge rates than comparably sized batteries. Thus, the process of charging the IMD with the external charger requires only a short amount of time, for example one to two minutes. The IMD may include a hybrid power system including both a supercapacitor and a rechargeable battery. With such a hybrid power system, the IMD's supercapacitor may be charged very quickly. Subsequently, power stored within the supercapacitor can be used to recharge the rechargeable battery at a slower charging rate.
    Type: Application
    Filed: August 9, 2018
    Publication date: March 7, 2019
    Inventor: Joey Chen
  • Publication number: 20190052106
    Abstract: A system and method for using statistical analysis of information obtained during a rechargeable battery charging session, wherein the method is for optimizing one or more parameters that are used for controlling the charging of a rechargeable battery during the charging session.
    Type: Application
    Filed: October 11, 2018
    Publication date: February 14, 2019
    Inventors: Benjamin Cottrill, Les Halberg, Michael Labbe, Joey Chen
  • Publication number: 20180345025
    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: Application
    Filed: March 28, 2018
    Publication date: December 6, 2018
    Inventors: Robert J. Stinauer, Joey Chen
  • Patent number: 10103559
    Abstract: A system and method for using statistical analysis of information obtained during a rechargeable battery charging session, wherein the method is for optimizing one or more parameters that are used for controlling the charging of a rechargeable battery during the charging session.
    Type: Grant
    Filed: November 16, 2015
    Date of Patent: October 16, 2018
    Assignee: Nuvectra Corporation
    Inventors: Benjamin Cottrill, Les Halberg, Michael Labbe, Joey Chen
  • Publication number: 20180272141
    Abstract: Electrical energy is transcutaneously transmitted at a plurality of different frequencies to an implanted medical device. The magnitude of the transmitted electrical energy respectively measured at the plurality of frequencies. One of the frequencies is selected based on the measured magnitude of the electrical energy (e.g., the frequency at which the measured magnitude of the electrical energy is the greatest). A depth level at which the medical device is implanted within the patient is determined based on the selected frequency. For example, the depth level may be determined to be relatively shallow if the selected frequency is relatively high, and relatively deep if the selected frequency is relative low. A charge strength threshold at which a charge strength indicator generates a user-discernible signal can then be set based on the determined depth level.
    Type: Application
    Filed: June 1, 2018
    Publication date: September 27, 2018
    Inventors: Daniel Aghassian, Lev Freidin, Joey Chen
  • Publication number: 20180243083
    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: Application
    Filed: September 3, 2015
    Publication date: August 30, 2018
    Applicant: Elenza, Inc.
    Inventors: Amitava Gupta GUPTA, Rudy Mazzocchi, Roel TRIP, Brian PETERSON, George CINTRA, Joey CHEN, Leslie HALBERG
  • Patent number: 10010717
    Abstract: Electrical energy is transcutaneously transmitted at a plurality of different frequencies to an implanted medical device. The magnitude of the transmitted electrical energy respectively measured at the plurality of frequencies. One of the frequencies is selected based on the measured magnitude of the electrical energy (e.g., the frequency at which the measured magnitude of the electrical energy is the greatest). A depth level at which the medical device is implanted within the patient is determined based on the selected frequency. For example, the depth level may be determined to be relatively shallow if the selected frequency is relatively high, and relatively deep if the selected frequency is relative low. A charge strength threshold at which a charge strength indicator generates a user-discernible signal can then be set based on the determined depth level.
    Type: Grant
    Filed: January 4, 2016
    Date of Patent: July 3, 2018
    Assignee: Boston Scientific Neuromodulation Corporation
    Inventors: Daniel Aghassian, Lev Freidin, Joey Chen
  • Patent number: 9867995
    Abstract: An external charger for a battery in an implantable medical device and charging techniques are disclosed. Simulation data is used to model the power dissipation of the charging circuitry in the implant at varying levels of implant power. A power dissipation limit constrains the charging circuitry from producing an inordinate amount of heat to the tissue surrounding the implant, and duty cycles of a charging field are determined so as not to exceed that limit. A maximum simulated average battery current determines the optimal (i.e., quickest) battery charging current, and at least an optimal value for a parameter indicative of that current is determined and stored in the external charger. During charging, the actual value for that parameter is determined, and the intensity and/or duty cycle of the charging field are adjusted to ensure that charging is as fast as possible, while still not exceeding the power dissipation limit.
    Type: Grant
    Filed: June 3, 2016
    Date of Patent: January 16, 2018
    Assignee: Boston Scientific Neuromodulation Corporation
    Inventors: Rafael Carbunaru, Jordi Parramon, Robert Ozawa, Jess Shi, Joey Chen, Md. Mizanur Rahman
  • Patent number: 9750930
    Abstract: A medical device for providing a stimulation therapy includes a coil configured to receive both inductive charging and telemetry signals. The inductive charging signals are in a first frequency band. The telemetry signals are in a second frequency band higher than the first frequency band. The medical device includes inductive charging circuitry configured to provide electrical power to the medical device via the inductive charging signals. The medical device includes telemetry circuitry configured to conduct telecommunications with external device via the telemetry signals. The medical device includes a first component electrically coupled between the coil and the inductive charging circuitry. The first component is configured to allow the inductive charging signals to pass through. The medical device includes a second component electrically coupled between the coil and the telemetry circuitry.
    Type: Grant
    Filed: June 30, 2014
    Date of Patent: September 5, 2017
    Assignee: Greatbatch Ltd.
    Inventor: Joey Chen
  • Publication number: 20170246451
    Abstract: A medical device includes telemetry circuitry configured to receive programming instructions. The medical device also includes stimulation circuitry configured to generate a plurality of electrical pulses in response to the programming instructions to provide an electrical stimulation therapy for a patient. The stimulation circuitry includes a voltage converter, a multiplexor, and a stimulation driver. At least one of the voltage converter, the multiplexer, or the stimulation driver is selectively enabled and disabled during or between the electrical pulses to reduce power consumption of the medical device.
    Type: Application
    Filed: May 15, 2017
    Publication date: August 31, 2017
    Inventors: Joey Chen, Kerry Bradley, Leslie Halberg
  • Patent number: 9744347
    Abstract: A medical device for providing a stimulation therapy includes stimulation circuitry configured to provide a plurality of electrical pulses to be delivered to a patient. The stimulation circuitry contains a microcontroller configured to generate the electrical pulses. Each electrical pulse includes a primary phase, an interphase after the primary phase, and a recovery phase after the primary phase. Consecutive electrical pulses are separated by a standby period. The microcontroller is configured to operate in an active mode during at least one of: the primary phase and the interphase. The microcontroller is configured to operate in a power-conservation mode during a substantial majority of the standby period. The microcontroller consumes substantially less power when operating in the power-conservation mode than in the active mode.
    Type: Grant
    Filed: July 1, 2014
    Date of Patent: August 29, 2017
    Assignee: GREATBATCH, LTD.
    Inventors: Joey Chen, Kerry Bradley, Leslie Halberg
  • Publication number: 20170232260
    Abstract: A medical device for providing an electrical stimulation therapy for a patient includes a microcontroller configured to generate a plurality of electrical pulses and a control signal. The medical device includes a stimulation driver coupled to the microcontroller. The stimulation driver is configured to amplify the electrical pulses into amplified electrical pulses to be delivered to the patient as a part of the electrical stimulation therapy. The medical device includes a battery configured to supply a first voltage. The medical device includes a voltage up-converter coupled between the battery and the stimulation driver. The voltage up-converter is configured to convert, in response to the control signal from the microcontroller, the first voltage to a compliance voltage for the stimulation driver. The compliance voltage is a fraction of the first voltage, and the fraction is greater than 1.
    Type: Application
    Filed: May 1, 2017
    Publication date: August 17, 2017
    Inventor: Joey Chen
  • Patent number: 9731116
    Abstract: A medical device for providing an electrical stimulation therapy for a patient includes a microcontroller configured to generate a plurality of electrical pulses and a control signal. The medical device includes a stimulation driver coupled to the microcontroller. The stimulation driver is configured to amplify the electrical pulses into amplified electrical pulses to be delivered to the patient as a part of the electrical stimulation therapy. The medical device includes a battery configured to supply a first voltage. The medical device includes a voltage up-converter coupled between the battery and the stimulation driver. The voltage up-converter is configured to convert, in response to the control signal from the microcontroller, the first voltage to a compliance voltage for the stimulation driver. The compliance voltage is a fraction of the first voltage, and the fraction is greater than 1.
    Type: Grant
    Filed: July 2, 2014
    Date of Patent: August 15, 2017
    Assignee: GREATBATCH, LTD
    Inventor: Joey Chen
  • Patent number: 9636508
    Abstract: To recharge an implanted medical device, an external device, typically in the form of an inductive charger, is placed over the implant to provide for transcutaneous energy transfer. The external charging device can be powered by a rechargeable battery. Since the battery is in close proximity to the charge coil, the large magnetic field produced by the charge coil induces eddy currents that flow on the battery's metallic case, often resulting in undesirable heating of the battery and reduced efficiency of the charger. This disclosure provides a means of shielding the battery from the magnetic field to reduce eddy current heating, thereby increasing efficiency. In one embodiment, the magnetic shield consists of one or more thin ferrite plates. The use of a ferrite shield allows the battery to be placed directly over the charge coil as opposed to outside the extent of the charge coil.
    Type: Grant
    Filed: April 27, 2015
    Date of Patent: May 2, 2017
    Assignee: Boston Scientific Neuromodulation Corporation
    Inventors: Joey Chen, Robert Ozawa, Daniel Aghassian