Patents by Inventor Emanuel Feldman

Emanuel Feldman 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).

  • Publication number: 20220088392
    Abstract: A new architecture is disclosed for an IPG having a master and slave electrode driver integrated circuits (ICs). The electrode outputs on the ICs are wired together. Each IC can be programmed to provide pulses with different frequencies. Active timing channels in master and slave ICs are programmed to provide the desired pulses, while shadow timing channels in the master and slave are programmed with the timing data from the active timing channels in the other IC so that each chip knows when the other is providing a pulse, so that each chip can disable its recovery circuitry so as not to defeat those pulses. In the event of pulse overlap at a given electrode, the currents provided by each chip will add at the affected electrode. Compliance voltage generation is dictated by an algorithm to find an optimal compliance voltage even during periods when pulses are overlapping.
    Type: Application
    Filed: December 2, 2021
    Publication date: March 24, 2022
    Inventors: Emanuel Feldman, Jordi Parramon, Paul J. Griffith, Jess Shi, Robert Tong, Goran Marnfeldt
  • Patent number: 11273303
    Abstract: An architecture is disclosed for an Implantable Pulse Generator having improved compliance voltage monitoring and adjustment software and hardware. Software specifies which stimulation pulses are to be measured as relevant to monitoring and adjusting the compliance voltage. Preferably, specifying such pulses occurs by setting a compliance monitoring instruction (e.g., a bit) in the program that defines the pulse, and the compliance monitor bit instruction may be set at a memory location defining a particular pulse phase during which the compliance voltage should be monitored. When a compliance monitor instruction issues, the active electrode node voltages are monitored and compared to desired ranges to determine whether they are high or low. Compliance logic operates on these high/low signals and processes them to decide whether to issue a compliance voltage interrupt to the microcontroller, which can then command the compliance voltage generator to increase or decrease the compliance voltage.
    Type: Grant
    Filed: December 3, 2019
    Date of Patent: March 15, 2022
    Assignee: Boston Scientific Neuromodulation Corporation
    Inventors: Emanuel Feldman, Goran N. Marnfeldt, Kenneth Hermann
  • Patent number: 11259732
    Abstract: A method and system of providing therapy to a patient implanted with an array of electrodes is provided. A train of electrical stimulation pulses is conveyed within a stimulation timing channel between a group of the electrodes to stimulate neural tissue, thereby providing continuous therapy to the patient. Electrical parameter is sensed within a sensing timing channel using at least one of the electrodes, wherein the first stimulation timing channel and sensing timing channel are coordinated, such that the electrical parameter is sensed during the conveyance of the pulse train within time slots that do not temporally overlap any active phase of the stimulation pulses.
    Type: Grant
    Filed: March 5, 2019
    Date of Patent: March 1, 2022
    Assignee: Boston Scientific Neuromodulation Corporation
    Inventors: Jordi Parramon, Emanuel Feldman, Jess Weiqian Shi
  • Patent number: 11207521
    Abstract: A new architecture is disclosed for an IPG having a master and slave electrode driver integrated circuits (ICs). The electrode outputs on the ICs are wired together. Each IC can be programmed to provide pulses with different frequencies. Active timing channels in master and slave ICs are programmed to provide the desired pulses, while shadow timing channels in the master and slave are programmed with the timing data from the active timing channels in the other IC so that each chip knows when the other is providing a pulse, so that each chip can disable its recovery circuitry so as not to defeat those pulses. In the event of pulse overlap at a given electrode, the currents provided by each chip will add at the affected electrode. Compliance voltage generation is dictated by an algorithm to find an optimal compliance voltage even during periods when pulses are overlapping.
    Type: Grant
    Filed: June 17, 2019
    Date of Patent: December 28, 2021
    Assignee: Boston Scientific Neuromodulation Corporation
    Inventors: Emanuel Feldman, Jordi Parramon, Paul J. Griffith, Jess Shi, Robert Tong, Goran Marnfeldt
  • Publication number: 20210008365
    Abstract: The problem of a potentially high amount of supra-threshold charge passing through the patient's tissue at the end of an Implantable Pulse Generator (IPG) program is addressed by circuitry that periodically dissipates only small amount of the charge stored on capacitances (e.g., DC-blocking capacitors) during a pulsed post-program recovery period. This occurs by periodically activating control signals to turn on passive recovery switches to form a series of discharge pulses each dissipating a sub-threshold amount of charge. Such periodic pulsed dissipation may extend the duration of post-program recovery, but is not likely to be noticeable by the patient when the programming in the IPG changes from a first to a second program. Periodic pulsed dissipation of charge may also be used during a program, such as between stimulation pulses.
    Type: Application
    Filed: September 24, 2020
    Publication date: January 14, 2021
    Inventors: Emanuel Feldman, Jordi Parramon, Goran N. Marnfeldt, Adam T. Featherstone
  • Publication number: 20210008389
    Abstract: An optical stimulation system includes a light source configured to produce light for optical stimulation; a light monitor; an optical lead coupled, or coupleable, to the light source and the light monitor; and a control module coupled, or coupleable, to the light source and the light monitor. The control module includes a memory, and a processor configured for automatically initiating a verification or measurement of a light output value; receiving, from the light monitor, a measurement of light generated by the light source; and when the measurement deviates from an expected light output value by more than a threshold amount, performing at least one of the following: sending a warning; or taking a corrective action.
    Type: Application
    Filed: March 19, 2019
    Publication date: January 14, 2021
    Inventors: Adam Thomas Featherstone, Emanuel Feldman, John Rivera, Claude Chabrol, Dennis Allen Vansickle, Michael A. Moffitt, Sarah Renault, Adrien Poizat
  • Publication number: 20200346007
    Abstract: Recovery circuitry for passively recovering charge from capacitances at electrodes in an Implantable Pulse Generator (IPG) is disclosed. The passive recovery circuitry includes passive recovery switches intervening between each electrode node and a common reference voltage, and each switch is in series with a variable resistance that may be selected based on differing use models of the IPG. The passive recovery switches may also be controlled in different modes. For example, in a first mode, the only recovery switches closed after a stimulation pulse are those associated with electrodes used to provide stimulation. In a second mode, all recovery switches are closed after a stimulation pulse, regardless of the electrodes used to provide stimulation. In a third mode, all recovery switches are closed continuously, which can provide protection when the IPG is in certain environments (e.g., MRI), and which can also be used during stimulation therapy itself.
    Type: Application
    Filed: July 16, 2020
    Publication date: November 5, 2020
    Inventors: Emanuel Feldman, Goran N. Marnfeldt, Jordi Parramon
  • Patent number: 10792491
    Abstract: The problem of a potentially high amount of supra-threshold charge passing through the patient's tissue at the end of an Implantable Pulse Generator (IPG) program is addressed by circuitry that periodically dissipates only small amount of the charge stored on capacitances (e.g., DC-blocking capacitors) during a pulsed post-program recovery period. This occurs by periodically activating control signals to turn on passive recovery switches to form a series of discharge pulses each dissipating a sub-threshold amount of charge. Such periodic pulsed dissipation may extend the duration of post-program recovery, but is not likely to be noticeable by the patient when the programming in the IPG changes from a first to a second program. Periodic pulsed dissipation of charge may also be used during a program, such as between stimulation pulses.
    Type: Grant
    Filed: October 31, 2017
    Date of Patent: October 6, 2020
    Assignee: Boston Scientific Neuromodulation Corporation
    Inventors: Emanuel Feldman, Jordi Parramon, Goran N. Marnfeldt, Adam T. Featherstone
  • Patent number: 10786665
    Abstract: Digital-to-analog converter (DAC) circuitry for providing currents at electrodes of an Implantable Pulse Generator (IPG) is disclosed. The DAC circuitry includes at least one PDAC for sourcing current to the electrodes, and at least one NDAC for sinking current from the electrodes. The PDACs are powered with power supplies VH (the compliance voltage) and Vssh in a high power domain, and the NDACs are powered with power supplies Vcc and ground in a low power domain. VH may change during IPG operation, and Vssh preferably also changes with a fixed difference with respect to VH. Digital control signals to the PDACs are formed (and possibly converted into) the high power domain, and transistors used to build the PDACs are biased in the high power domain, and thus may also change with VH. This permits transistors in the PDACs and NDACs to be made from normal low-voltage logic transistors.
    Type: Grant
    Filed: September 5, 2017
    Date of Patent: September 29, 2020
    Assignee: Boston Scientific Neuromodulation Corporation
    Inventors: Goran N. Marnfeldt, Philip L. Weiss, Pujitha Weerakoon, David M. Wagenbach, Emanuel Feldman, Kiran K. Gururaj
  • Patent number: 10716937
    Abstract: Recovery circuitry for passively recovering charge from capacitances at electrodes in an Implantable Pulse Generator (IPG) is disclosed. The passive recovery circuitry includes passive recovery switches intervening between each electrode node and a common reference voltage, and each switch is in series with a variable resistance that may be selected based on differing use models of the IPG. The passive recovery switches may also be controlled in different modes. For example, in a first mode, the only recovery switches closed after a stimulation pulse are those associated with electrodes used to provide stimulation. In a second mode, all recovery switches are closed after a stimulation pulse, regardless of the electrodes used to provide stimulation. In a third mode, all recovery switches are closed continuously, which can provide protection when the IPG is in certain environments (e.g., MRI), and which can also be used during stimulation therapy itself.
    Type: Grant
    Filed: September 5, 2017
    Date of Patent: July 21, 2020
    Assignee: Boston Scientific Neuromodulation Corporation
    Inventors: Emanuel Feldman, Goran N. Marnfeldt, Jordi Parramon
  • Publication number: 20200101277
    Abstract: An architecture is disclosed for an Implantable Pulse Generator having improved compliance voltage monitoring and adjustment software and hardware. Software specifies which stimulation pulses are to be measured as relevant to monitoring and adjusting the compliance voltage. Preferably, specifying such pulses occurs by setting a compliance monitoring instruction (e.g., a bit) in the program that defines the pulse, and the compliance monitor bit instruction may be set at a memory location defining a particular pulse phase during which the compliance voltage should be monitored. When a compliance monitor instruction issues, the active electrode node voltages are monitored and compared to desired ranges to determine whether they are high or low. Compliance logic operates on these high/low signals and processes them to decide whether to issue a compliance voltage interrupt to the microcontroller, which can then command the compliance voltage generator to increase or decrease the compliance voltage.
    Type: Application
    Filed: December 3, 2019
    Publication date: April 2, 2020
    Inventors: Emanuel Feldman, Goran N. Marnfeldt, Kenneth Hermann
  • Publication number: 20200086125
    Abstract: Disclosed herein are circuits and methods for a multi-electrode implantable stimulator device incorporating one decoupling capacitor in the current path established via at least one cathode electrode and at least one anode electrode. In one embodiment, the decoupling capacitor may be hard-wired to a dedicated anode on the device. The cathodes are selectively activatable via stimulation switches. In another embodiment, any of the electrodes on the devices can be selectively activatable as an anode or cathode. In this embodiment, the decoupling capacitor is placed into the current path via selectable anode and cathode stimulation switches. Regardless of the implementation, the techniques allow for the benefits of capacitive decoupling without the need to associate decoupling capacitors with every electrode on the multi-electrode device, which saves space in the body of the device.
    Type: Application
    Filed: November 25, 2019
    Publication date: March 19, 2020
    Inventors: Jordi Parramon, Kiran Nimmagadda, Emanuel Feldman, Yuping He
  • Patent number: 10589090
    Abstract: An implantable pulse generator (IPG) for an implantable medical device is disclosed herein. The IPG is capable of sensing the presence of an external magnetic field, such as a magnetic field associated with magnetic resonance imaging (MRI). The IPG includes a circuit that contains a magnetic core inductor and that is configured to boost a first voltage to a second voltage and use the second voltage to drive a current through a load. In a strong magnetic field, the magnetic core of the inductor becomes magnetically saturated, causing the inductance of the inductor to sharply drop. The inductance drop can be detected, for example, by detecting an increase in the second voltage. The circuit may be a boost converter circuit used to provide a compliance voltage for operation of the IPG.
    Type: Grant
    Filed: September 5, 2017
    Date of Patent: March 17, 2020
    Assignee: Boston Scientific Neuromodulation Corporation
    Inventors: Emanuel Feldman, Goran N. Marnfeldt
  • Patent number: 10525252
    Abstract: An architecture is disclosed for an Implantable Pulse Generator having improved compliance voltage monitoring and adjustment software and hardware. Software specifies which stimulation pulses are to be measured as relevant to monitoring and adjusting the compliance voltage. Preferably, specifying such pulses occurs by setting a compliance monitoring instruction (e.g., a bit) in the program that defines the pulse, and the compliance monitor bit instruction may be set at a memory location defining a particular pulse phase during which the compliance voltage should be monitored. When a compliance monitor instruction issues, the active electrode node voltages are monitored and compared to desired ranges to determine whether they are high or low. Compliance logic operates on these high/low signals and processes them to decide whether to issue a compliance voltage interrupt to the microcontroller, which can then command the compliance voltage generator to increase or decrease the compliance voltage.
    Type: Grant
    Filed: September 5, 2017
    Date of Patent: January 7, 2020
    Assignee: Boston Scientific Neuromodulation Corporation
    Inventors: Emanuel Feldman, Goran N. Marnfeldt, Kenneth Hermann
  • Patent number: 10518091
    Abstract: Disclosed herein are circuits and methods for a multi-electrode implantable stimulator device incorporating one decoupling capacitor in the current path established via at least one cathode electrode and at least one anode electrode. In one embodiment, the decoupling capacitor may be hard-wired to a dedicated anode on the device. The cathodes are selectively activatable via stimulation switches. In another embodiment, any of the electrodes on the devices can be selectively activatable as an anode or cathode. In this embodiment, the decoupling capacitor is placed into the current path via selectable anode and cathode stimulation switches. Regardless of the implementation, the techniques allow for the benefits of capacitive decoupling without the need to associate decoupling capacitors with every electrode on the multi-electrode device, which saves space in the body of the device.
    Type: Grant
    Filed: August 11, 2017
    Date of Patent: December 31, 2019
    Assignee: Boston Scientific Neuromodulation Corporation
    Inventors: Jordi Parramon, Kiran Nimmagadda, Emanuel Feldman, Yuping He
  • Publication number: 20190299007
    Abstract: A new architecture is disclosed for an IPG having a master and slave electrode driver integrated circuits (ICs). The electrode outputs on the ICs are wired together. Each IC can be programmed to provide pulses with different frequencies. Active timing channels in master and slave ICs are programmed to provide the desired pulses, while shadow timing channels in the master and slave are programmed with the timing data from the active timing channels in the other IC so that each chip knows when the other is providing a pulse, so that each chip can disable its recovery circuitry so as not to defeat those pulses. In the event of pulse overlap at a given electrode, the currents provided by each chip will add at the affected electrode. Compliance voltage generation is dictated by an algorithm to find an optimal compliance voltage even during periods when pulses are overlapping.
    Type: Application
    Filed: June 17, 2019
    Publication date: October 3, 2019
    Inventors: Emanuel Feldman, Jordi Parramon, Paul J. Griffith, Jess Shi, Robert Tong, Goran Marnfeldt
  • Patent number: 10363422
    Abstract: Disclosed is a new architecture for an IPG having a master and slave electrode driver integrated circuits. The electrode outputs on the integrated circuits are wired together. Each integrated circuit can be programmed to provide pulses with different frequencies. Active timing channels in each of the master and slave integrated circuits are programmed to provide the desired pulses, while shadow timing channels in the master and slave are programmed with the timing data from the active timing channels in the other integrated circuit so that each chip knows when the other is providing a pulse, so that each chip can disable its recovery circuitry so as not to defeat those pulses. In the event of pulse overlap at a given electrode, the currents provided by each chip will add at the affected electrode. Compliance voltage generation is dictated by an algorithm to find an optimal compliance voltage even during periods when pulses are overlapping.
    Type: Grant
    Filed: April 19, 2017
    Date of Patent: July 30, 2019
    Assignee: Boston Scientific Neuromodulation Corporation
    Inventors: Emanuel Feldman, Jordi Parramon, Paul J. Griffith, Jess Shi, Robert Tong, Goran Marnfeldt
  • Patent number: 10352776
    Abstract: Temperature sensing circuitry for an Implantable Medical Device (IMD) is disclosed that can be integrated into integrated circuitry in the IMD and draws very little power, thus enabling continuous temperature monitoring without undue battery depletion. Temperature sensor and threshold setting circuitry produces analog voltage signals indicative of a sensed temperature and at least one temperature threshold. Such circuitry employs a Ptat current reference stage and additional stages, which stages contains resistances that are set based on the desired temperature threshold(s) and to set the voltage range of the sensed temperature. These analog voltages are received at temperature threshold detection circuitry, which produces digital signal(s) indicating whether the sensed temperature has passed the temperature threshold(s). The digital signal(s) are then provided to digital circuitry in the IMD, where they can be stored as a function of time for later review, or used to immediately to control IMD operation.
    Type: Grant
    Filed: March 20, 2018
    Date of Patent: July 16, 2019
    Assignee: Boston Scientific Neuromodulation Corporation
    Inventors: Emanuel Feldman, Goran N. Marnfeldt
  • Publication number: 20190192848
    Abstract: A method and system of providing therapy to a patient implanted with an array of electrodes is provided. A train of electrical stimulation pulses is conveyed within a stimulation timing channel between a group of the electrodes to stimulate neural tissue, thereby providing continuous therapy to the patient. Electrical parameter is sensed within a sensing timing channel using at least one of the electrodes, wherein the first stimulation timing channel and sensing timing channel are coordinated, such that the electrical parameter is sensed during the conveyance of the pulse train within time slots that do not temporally overlap any active phase of the stimulation pulses.
    Type: Application
    Filed: March 5, 2019
    Publication date: June 27, 2019
    Inventors: Jordi Parramon, Emanuel Feldman, Jess Weiqian Shi
  • Patent number: 10252049
    Abstract: A method and system of providing therapy to a patient implanted with an array of electrodes is provided. A train of electrical stimulation pulses is conveyed within a stimulation timing channel between a group of the electrodes to stimulate neural tissue, thereby providing continuous therapy to the patient. Electrical parameter is sensed within a sensing timing channel using at least one of the electrodes, wherein the first stimulation timing channel and sensing timing channel are coordinated, such that the electrical parameter is sensed during the conveyance of the pulse train within time slots that do not temporally overlap any active phase of the stimulation pulses.
    Type: Grant
    Filed: June 28, 2016
    Date of Patent: April 9, 2019
    Assignee: Boston Scientific Neuromodulation Corporation
    Inventors: Jordi Parramon, Emanuel Feldman, Jess Weiqian Shi