Patents by Inventor Daniel Aghassian

Daniel Aghassian 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: 11129996
    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 the resonant frequency of the charging coil/IMD coupled system. The determined resonant frequency can then be used to determine the position of the charging coil relative to the IMD. The magnetic field produced from the charging coil may also be driven at the resonant frequency to optimize power transfer to the IMD.
    Type: Grant
    Filed: June 7, 2017
    Date of Patent: September 28, 2021
    Assignee: Boston Scientific Neuromodulation Corporation
    Inventors: Daniel Aghassian, Thomas W. Stouffer, Lev Freidin
  • Publication number: 20210220655
    Abstract: A design for an implantable medical device (IMD) is disclosed in which a charging coil and a short-range RF antenna in the IMD's header are physically integrated, and in which the short-range RF antenna includes intentional coupling to the charging coil. A pick-up is capacitively coupled to the charging coil in the header, such as by wrapping the pick-up at least partially around the turns of the charging coil. The charging coil is used to receive power via a magnetic inductive link at a first (preferably lower) frequency, while the combined charging coil and pick-up—together acting as the short-range RF antenna—receive and transmit short-range RF data (e.g., Bluetooth) via a short-range RF data link at a second (preferably higher) frequency. Resonance of the charging coil and short-range RF antenna can be independently tuned, and circuitry can prevent interference between them.
    Type: Application
    Filed: April 7, 2021
    Publication date: July 22, 2021
    Inventors: Daniel Aghassian, Lev Freidin
  • Patent number: 11040209
    Abstract: A design for an implantable medical device (IMD) is disclosed in which a charging coil and a short-range RF antenna in the IMD's header are physically integrated, and in which the short-range RF antenna includes intentional coupling to the charging coil. A pick-up is capacitively coupled to the charging coil in the header, such as by wrapping the pick-up at least partially around the turns of the charging coil. The charging coil is used to receive power via a magnetic inductive link at a first (preferably lower) frequency, while the combined charging coil and pick-up—together acting as the short-range RF antenna—receive and transmit short-range RF data (e.g., Bluetooth) via a short-range RF data link at a second (preferably higher) frequency. Resonance of the charging coil and short-range RF antenna can be independently tuned, and circuitry can prevent interference between them.
    Type: Grant
    Filed: January 19, 2018
    Date of Patent: June 22, 2021
    Assignee: Boston Scienitific Neuromodulation Corporation
    Inventors: Daniel Aghassian, Lev Freidin
  • Publication number: 20210154486
    Abstract: Disclosed is a plug-in accessory for operating a mobile device as an external controller for an Implantable Medical Device (IMD). The accessory includes a connector insertable into a port on the mobile device. Accessory circuitry can be powered by a battery or by the mobile device. An application on the mobile device in conjunction with the accessory configures the mobile phone for immediate use as an IMD external controller. When the accessory is inserted into the port or a switch on the accessory pressed, the application operates to validate the accessory; to unlock the phone; to secure the mobile device; and to render a graphical user interface on the mobile device for communicating with the IMD. The accessory can additionally include telemetry circuitry and an antenna for communicating with the IMD, rather than using short-range communication means provided in the mobile device itself.
    Type: Application
    Filed: January 29, 2021
    Publication date: May 27, 2021
    Inventor: Daniel Aghassian
  • 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: 10946200
    Abstract: Disclosed is a plug-in accessory for operating a mobile device as an external controller for an Implantable Medical Device (IMD). The accessory includes a connector insertable into a port on the mobile device. Accessory circuitry can be powered by a battery or by the mobile device. An application on the mobile device in conjunction with the accessory configures the mobile phone for immediate use as an IMD external controller. When the accessory is inserted into the port or a switch on the accessory pressed, the application operates to validate the accessory; to unlock the phone; to secure the mobile device; and to render a graphical user interface on the mobile device for communicating with the IMD. The accessory can additionally include telemetry circuitry and an antenna for communicating with the IMD, rather than using short-range communication means provided in the mobile device itself.
    Type: Grant
    Filed: February 21, 2019
    Date of Patent: March 16, 2021
    Assignee: Boston Scientific Neuromodulation Corporation
    Inventor: Daniel Aghassian
  • Patent number: 10881870
    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. The magnitude of one or more voltages induced on the one or more sense coils can be measured to determine the position of the charging coil relative to the IMD, and in particular 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.
    Type: Grant
    Filed: February 20, 2020
    Date of Patent: January 5, 2021
    Assignee: Boston Scientific Neuromodulation Corporation
    Inventors: Daniel Aghassian, Thomas W. Stouffer
  • Publication number: 20200306540
    Abstract: A control module for an electrical stimulation system includes an electronics housing; an electronic subassembly disposed within the electronics housing; a power source housing disposed adjacent to, and in contact with, the electronics housing; a power source disposed within the power source housing; and an interface with at least one feedthrough pin extending to electrically coupled the power source and the electronic subassembly to provide power from the power source to the electronic subassembly.
    Type: Application
    Filed: March 31, 2020
    Publication date: October 1, 2020
    Inventor: Daniel Aghassian
  • Patent number: 10737103
    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: June 1, 2018
    Date of Patent: August 11, 2020
    Assignee: Boston Scientific Neuromodulation Corporation
    Inventors: Daniel Aghassian, Lev Freidin, Joey Chen
  • Publication number: 20200188680
    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. The magnitude of one or more voltages induced on the one or more sense coils can be measured to determine the position of the charging coil relative to the IMD, and in particular 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.
    Type: Application
    Filed: February 20, 2020
    Publication date: June 18, 2020
    Inventors: Daniel Aghassian, Thomas W. Stouffer
  • Publication number: 20200155858
    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: Application
    Filed: January 23, 2020
    Publication date: May 21, 2020
    Inventors: Daniel Aghassian, Thomas W. Stouffer
  • 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: 10625081
    Abstract: Disclosed in an improved medical implantable device system including an improved external charger that is able to communicate with an external controller and IPG using the communication protocol (e.g., FSK) used to implement communications between the external controller and the implant. The external controller as modified uses its charging coil to charge the implant, and also to communicate with the other devices in the system. As such, the external charger is provided with transceiver circuitry operating in accordance with the protocol, and also includes tuning circuitry to tune the coil as necessary for communications or charging. Communication or charging access to the charging coil in the external charger is time multiplexed. The disclosed system allows charging information to be provided to the user interface of the external controller so that it can be reviewed by the user, who may take corrective action if necessary.
    Type: Grant
    Filed: May 3, 2018
    Date of Patent: April 21, 2020
    Assignee: Boston Scientific Neuromodulation Corporation
    Inventor: Daniel Aghassian
  • Patent number: 10603501
    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. The magnitude of one or more voltages induced on the one or more sense coils can be measured to determine the position of the charging coil relative to the IMD, and in particular 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.
    Type: Grant
    Filed: June 7, 2017
    Date of Patent: March 31, 2020
    Assignee: Boston Scientific Neuromodulation Corporation
    Inventors: Daniel Aghassian, Thomas W. Stouffer
  • Patent number: 10576294
    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 21, 2019
    Date of Patent: March 3, 2020
    Assignee: Boston Scientific Neuromodulation Corporation
    Inventors: Daniel Aghassian, Thomas W. Stouffer
  • Patent number: 10530179
    Abstract: An integrated external controller/charger system for an implantable medical device is disclosed comprising an external controller/charger device with a Graphical User Interface (GUI) and first battery, and an external charging coil assembly coupleable to the external controller/charger device and including or associated with a second battery. The second battery is used to energize a charging coil in the external charging coil assembly, while the first battery is used to power other aspects of the system (data telemetry circuitry, control circuitry, the GUI, etc.). Because the second battery powers the relatively high-power charging function, the first battery in the external controller/charger device can be made smaller. Additionally, the second battery enables a suitable external controller device (e.g. a mobile device such as a cell phone) to provide charging functionality even if its first battery is otherwise inadequate.
    Type: Grant
    Filed: February 14, 2018
    Date of Patent: January 7, 2020
    Assignee: Boston Scientific Neuromodulation Corporation
    Inventors: Daniel Aghassian, Terril G. Lewis
  • Publication number: 20190299013
    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: Application
    Filed: June 17, 2019
    Publication date: October 3, 2019
    Inventors: Daniel Aghassian, Thomas W. Stouffer, Jonathan Larcom, Gaurav Gupta
  • Patent number: 10363426
    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 7, 2017
    Date of Patent: July 30, 2019
    Assignee: Boston Scientific Neuromodulation Corporation
    Inventors: Daniel Aghassian, Thomas W. Stouffer, Jonathan Larcom, Gaurav Gupta
  • 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