Patents by Inventor David A. Dinsmoor

David A. Dinsmoor 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: 10322282
    Abstract: A system including a stimulation generator configured to delivery external stimulation to control or alleviate urinary or fecal incontinence. The system may also include sense electrodes configured to sense the presence of wetness. The system may provide closed loop therapy based on the presence of wetness.
    Type: Grant
    Filed: June 5, 2015
    Date of Patent: June 18, 2019
    Assignee: MEDTRONIC, INC.
    Inventors: Xuan K. Wei, Eric H. Bonde, John R. LaLonde, David A. Dinsmoor
  • Publication number: 20190126046
    Abstract: Techniques, devices, and systems for isolating, by isolation circuitry connected to a power source, a voltage from the power source, receiving, by sensing circuitry, the isolated voltage, receiving, by the sensing circuitry, a reference voltage from an implantable reference electrode via a reference node, and sensing, by the sensing circuitry, the biomedical signal with two or more implantable sensing electrodes using the isolated voltage with respect to the reference voltage.
    Type: Application
    Filed: December 26, 2018
    Publication date: May 2, 2019
    Inventors: David A. Dinsmoor, Scott R. Stanslaski, Erik J. Peterson, Paul R. Mazanec
  • Patent number: 10238876
    Abstract: Techniques, devices, and systems for isolating, by isolation circuitry connected to a power source, a voltage from the power source, receiving, by sensing circuitry, the isolated voltage, receiving, by the sensing circuitry, a reference voltage from an implantable reference electrode via a reference node, and sensing, by the sensing circuitry, the biomedical signal with two or more implantable sensing electrodes using the isolated voltage with respect to the reference voltage.
    Type: Grant
    Filed: August 15, 2016
    Date of Patent: March 26, 2019
    Assignee: Medtronic, Inc.
    Inventors: David A. Dinsmoor, Scott R. Stanslaski, Erik J. Peterson, Paul R. Mazanec
  • Publication number: 20190060647
    Abstract: In some examples, a method including determining a chronaxie of evoked threshold motor responses from electrical stimulation delivered to a sacral nerve of a patient; and delivering, based on the determined chronaxie, electrical stimulation therapy, configured to treat a patient condition, to the sacral nerve having a pulse width at or near the identified chronaxie, wherein the delivered electrical stimulation is configured to inhibit contraction of at least one a bladder or bowel of the patient.
    Type: Application
    Filed: April 27, 2018
    Publication date: February 28, 2019
    Inventors: Xin Su, David A. Dinsmoor
  • Patent number: 10213604
    Abstract: An example system includes a stimulation generator configured to deliver electrical stimulation therapy to tissue of a patient in accordance with a stimulation therapy program. The stimulation therapy program may include a set of stimulation therapy parameters. The system may include at least one sensor configured to detect a signal including an evoked compound muscle action potential (eCMAP) in response to the application of stimulation according to the stimulation therapy program. The system may also include a processor configured to adjust one or more or the stimulation therapy parameters based on the detected signal that includes the eCMAP.
    Type: Grant
    Filed: April 13, 2016
    Date of Patent: February 26, 2019
    Assignee: Medtronic, Inc.
    Inventors: David A. Dinsmoor, Peng Cong, Louis Vera-Portocarrero, Xin Su
  • Publication number: 20180304075
    Abstract: Example systems for positioning an implantable electrode may include a stimulation circuitry, a sensing circuitry, and processing circuitry. The stimulation circuitry may generate electrical stimulation deliverable to a patient. The sensing circuitry may sense electromyographic (EMG) responses. The processing circuitry may control the stimulation circuitry to deliver the electrical stimulation at a plurality of different stimulation metric levels at each of a plurality of different positions. The processing circuitry may sense, via the sensing circuitry, electromyographic (EMG) responses to the electrical stimulation. The processing circuitry may score one or more of the different positions for chronic implantation of at least one implantable electrode. The scoring may be based on a stimulation metric level greater than a predetermined metric threshold sufficient to evoke at least some of the sensed EMG responses, and a level of the at least some of the sensed EMG responses.
    Type: Application
    Filed: April 20, 2018
    Publication date: October 25, 2018
    Inventors: Xin Su, David A. Dinsmoor, Jason E. Agran
  • Patent number: 10080902
    Abstract: Implantable devices and related systems utilize a single coil for both inductive telemetry at one telemetry signal frequency and recharge at another recharge energy frequency. The coil is included in a tank circuit that may have a variable reactance. During telemetry, particularly outside of a recharge period, the reactance may be set so that the tank circuit is tuned to the telemetry frequency. During recharge, the reactance is set so that the tank circuit is tuned to the recharge frequency. Furthermore, the tank circuit may have a Q that is sufficiently small that the tank circuit receives telemetry frequency signals that can be decoded by a receiver while the tank is tuned to the recharge frequency so that telemetry for recharge status purposes may be done during the recharge period without changing the tuning of the tank circuit.
    Type: Grant
    Filed: May 12, 2017
    Date of Patent: September 25, 2018
    Assignee: MEDTRONIC, INC.
    Inventors: David A. Dinsmoor, Joel A. Anderson
  • Patent number: 10045764
    Abstract: An external medical device generates a drive signal inductively coupled to an implantable coil from an external coil. A regulator module coupled to the implantable coil generates an output signal in response to the inductively coupled signal and a feedback signal correlated to an amplitude of the inductively coupled signal. A signal generator receives the output signal for generating a therapeutic electrical stimulation signal. The control module adjusts the drive signal in response to the feedback signal to control the electrical stimulation signal.
    Type: Grant
    Filed: October 25, 2017
    Date of Patent: August 14, 2018
    Assignee: Medtronic, Inc.
    Inventors: Erik R. Scott, John E. Kast, Xuan K. Wei, Todd V. Smith, Joel A. Anderson, Forrest C. M. Pape, Duane L. Bourget, Timothy J. Denison, David A. Dinsmoor, Randy S. Roles, Stephen J. Roddy
  • Publication number: 20180154144
    Abstract: In general, techniques, methods, systems, and devices for delivering high frequency neurostimulation to control one or more pelvic disorders are described. In one example, a method includes identifying, by a medical device configured to be at least partially implanted in a patient, an indication to inhibit bladder activity. The medical device generates, in response to identifying the indication, electrical stimulation therapy comprising first electrical stimulation pulses comprising a first frequency greater than or equal to about 500 Hertz and less than or equal to about 5,000 Hertz. Further, the medical device delivers the electrical stimulation therapy to a target nerve selected from a group consisting of: a sacral nerve, a pelvic nerve, a tibial nerve, and a pudendal nerve of the patient.
    Type: Application
    Filed: December 5, 2017
    Publication date: June 7, 2018
    Inventors: Thaddeus S. Brink, Dwight E. Nelson, Lance Zirpel, Xin Su, Blake A. Hedstrom, Erik J. Peterson, David A. Dinsmoor
  • Publication number: 20180133484
    Abstract: A method of programming an implantable medical device (IMD) configured to provide electrical stimulation via a plurality of stimulation vectors during delivery of the electrical stimulation of a plurality of pulse widths to a neural target. The method may comprise comparing strength-duration curve data for the plurality of stimulation vectors to one another, the strength-duration curve data representing, for respective pulse widths and stimulation vectors, a corresponding stimulation strength that evokes a physiological response associated with the neural target. The method may comprise selecting at least one stimulation vector of the plurality of stimulation vectors based on the comparison of the strength-duration curve data for the plurality of stimulation vectors. The method may comprise programming, in response to the selection, the IMD to deliver the electrical stimulation to the neural target via the selected at least one stimulation vector.
    Type: Application
    Filed: November 6, 2017
    Publication date: May 17, 2018
    Inventors: David A. Dinsmoor, Xin Su
  • Publication number: 20180078769
    Abstract: This disclosure relates to methods, devices, and systems for delivering and adjusting stimulation therapy. In one example, a method comprising delivering, by a stimulation electrode, electrical stimulation as a candidate therapy to a patient according to a set of candidate therapy parameters, the stimulation electrode located in proximity to the dorsal column of a patient; sensing, by a sensing electrode, an electrically evoked compound action potential (eECAP) signal in response to the delivery of the electrical stimulation; and classifying, by a processor, the sensed eECAP signal generated in response to the application of the candidate therapy relative to an eECAP baseline is disclosed.
    Type: Application
    Filed: September 14, 2017
    Publication date: March 22, 2018
    Inventors: David A. Dinsmoor, Timothy J. Denison, Xin Su
  • Publication number: 20180055500
    Abstract: An external medical device generates a drive signal inductively coupled to an implantable coil from an external coil. A regulator module coupled to the implantable coil generates an output signal in response to the inductively coupled signal and a feedback signal correlated to an amplitude of the inductively coupled signal. A signal generator receives the output signal for generating a therapeutic electrical stimulation signal. The control module adjusts the drive signal in response to the feedback signal to control the electrical stimulation signal.
    Type: Application
    Filed: October 25, 2017
    Publication date: March 1, 2018
    Inventors: Erik R. Scott, John E. Kast, Xuan K. Wei, Todd V. Smith, Joel A. Anderson, Forrest C.M. Pape, Duane L. Bourget, Timothy J. Denison, David A. Dinsmoor, Randy S. Roles, Stephen J. Roddy
  • Patent number: 9826963
    Abstract: An external medical device generates a drive signal inductively coupled to an implantable coil from an external coil. A regulator module coupled to the implantable coil generates an output signal in response to the inductively coupled signal and a feedback signal correlated to an amplitude of the inductively coupled signal. A signal generator receives the output signal for generating a therapeutic electrical stimulation signal. The control module adjusts the drive signal in response to the feedback signal to control the electrical stimulation signal.
    Type: Grant
    Filed: December 6, 2013
    Date of Patent: November 28, 2017
    Assignee: Medtronic, Inc.
    Inventors: Erik R. Scott, John E. Kast, Xuan K. Wei, Todd V. Smith, Joel A. Anderson, Forrest C. M. Pape, Duane L. Bourget, Timothy J. Denison, David A. Dinsmoor, Randy S. Roles, Stephen J. Roddy
  • Publication number: 20170326374
    Abstract: Implantable devices and related systems utilize a single coil for both inductive telemetry at one telemetry signal frequency and recharge at another recharge energy frequency. The coil is included in a tank circuit that may have a variable reactance. During telemetry, particularly outside of a recharge period, the reactance may be set so that the tank circuit is tuned to the telemetry frequency. During recharge, the reactance is set so that the tank circuit is tuned to the recharge frequency. Furthermore, the tank circuit may have a Q that is sufficiently small that the tank circuit receives telemetry frequency signals that can be decoded by a receiver while the tank is tuned to the recharge frequency so that telemetry for recharge status purposes may be done during the recharge period without changing the tuning of the tank circuit.
    Type: Application
    Filed: May 12, 2017
    Publication date: November 16, 2017
    Inventors: David A. Dinsmoor, Joel A. Anderson
  • Patent number: 9744368
    Abstract: External device circuitry self-tunes so that current is being driven through a coil at a resonant frequency of the tank circuit including the coil. The self-tuning nature of the driver circuitry enables adaptation within a cycle to changes in the resonant frequency such as those due to changing loads on the coil from environmental factors. The self-tuning circuitry monitors the direction of current flow in the tank circuit so that during a non-driven phase of a two-phase cycle, the circuitry detects the current naturally changing directions and then activates the driver circuitry to drive current into the tank circuit in phase with the natural direction of current flow. Unity power factor is approximated while driving the coil despite changes in resonance. Power being driven into the tank circuit may then be measured at the approximation of unity power factor to control the amount of power being applied.
    Type: Grant
    Filed: February 16, 2012
    Date of Patent: August 29, 2017
    Assignee: MEDTRONIC, INC.
    Inventor: David A. Dinsmoor
  • Patent number: 9653941
    Abstract: Implantable devices and related systems utilize a single coil for both inductive telemetry at one telemetry signal frequency and recharge at another recharge energy frequency. The coil is included in a tank circuit that may have a variable reactance. During telemetry, particularly outside of a recharge period, the reactance may be set so that the tank circuit is tuned to the telemetry frequency. During recharge, the reactance is set so that the tank circuit is tuned to the recharge frequency. Furthermore, the tank circuit may have a Q that is sufficiently small that the tank circuit receives telemetry frequency signals that can be decoded by a receiver while the tank is tuned to the recharge frequency so that telemetry for recharge status purposes may be done during the recharge period without changing the tuning of the tank circuit.
    Type: Grant
    Filed: August 7, 2015
    Date of Patent: May 16, 2017
    Assignee: MEDTRONIC, INC.
    Inventors: David A. Dinsmoor, Joel A. Anderson
  • Publication number: 20170065819
    Abstract: Techniques, devices, and systems for isolating, by isolation circuitry connected to a power source, a voltage from the power source, receiving, by sensing circuitry, the isolated voltage, receiving, by the sensing circuitry, a reference voltage from an implantable reference electrode via a reference node, and sensing, by the sensing circuitry, the biomedical signal with two or more implantable sensing electrodes using the isolated voltage with respect to the reference voltage.
    Type: Application
    Filed: August 15, 2016
    Publication date: March 9, 2017
    Inventors: David A. Dinsmoor, Scott R. Stanslaski, Erik J. Peterson, Paul R. Mazanec
  • Patent number: 9585642
    Abstract: Various embodiments of a minimally invasive implantable medical device (IMD) system are described. In one embodiment, the implantable medical device system includes an external device for transmitting a communication signal and an implantable device for receiving the communication signal by inductive coupling. The implantable device is configured to harvest power from the inductively coupled communication signal and power a signal generator from the harvested power to generate a therapeutic electrical stimulation signal.
    Type: Grant
    Filed: December 6, 2013
    Date of Patent: March 7, 2017
    Assignee: Medtronic, Inc.
    Inventors: David A. Dinsmoor, Joel A. Anderson, Forrest C. M. Pape, Todd V. Smith, Eric H. Bonde
  • Publication number: 20160303376
    Abstract: This disclosure relates to methods, devices, and systems for delivering and adjusting stimulation therapy. In one example, a system may include a stimulation generator configured to delivery electrical stimulation therapy to tissue of a patient in accordance with a stimulation therapy program. The stimulation therapy program may include a set of stimulation therapy parameters. The system may include at least one sensor configured to detect a signal including an evoked compound muscle action potential (eCMAP) in response to the application of stimulation according to the stimulation therapy program. The system may also include a processor configured to adjust one or more or the stimulation therapy parameters based on the detected signal that includes the eCMAP.
    Type: Application
    Filed: April 13, 2016
    Publication date: October 20, 2016
    Inventors: David A. Dinsmoor, Peng Cong, Louis Vera-Portocarrero, Xin Su
  • Patent number: 9439581
    Abstract: A system for locating a target tissue site is described. The system includes a locating guide that frames an area of interest upon placement over skin of a patient, an electrode patch defining an aperture and including two or more electrodes for placement within the area of interest, and a medical imaging device that indicates a location of a target tissue site within the patient based on electrical signals generated by one or more of the electrodes. A clinician may guide an introducer needle into the aperture for implanting a medical lead proximate to the target tissue site.
    Type: Grant
    Filed: August 7, 2007
    Date of Patent: September 13, 2016
    Assignee: Medtronic, Inc.
    Inventors: David A. Dinsmoor, Eric H. Bonde