Patents by Inventor Ismael Huertas Fernandez

Ismael Huertas Fernandez 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: 11285323
    Abstract: Methods and systems for testing and treating spinal cord stimulation (SCS) patients are disclosed. Patients are eventually treated with sub-perception (paresthesia free) therapy. However, supra-perception stimulation is used during “sweet spot searching” during which active electrodes are selected for the patient. This allows sweet spot searching to occur much more quickly and without the need to wash in the various electrode combinations that are tried. After selecting electrodes using supra-perception therapy, therapy is titrated to sub-perception levels using the selected electrodes. Such sub-perception therapy has been investigated using pulses at or below 10 kHz, and it has been determined that a statistically significant correlation exists between pulse width (PW) and frequency (F) in this frequency range at which SCS patients experience significant reduction in symptoms such as back pain.
    Type: Grant
    Filed: May 24, 2021
    Date of Patent: March 29, 2022
    Assignee: Boston Scientific Neuromodulation Corporation
    Inventors: Que T. Doan, Jianwen Gu, Ismael Huertas Fernandez, Rosana Esteller, Michael A. Moffitt
  • Publication number: 20210275811
    Abstract: Methods and systems for testing and treating spinal cord stimulation (SCS) patients are disclosed. Patients are eventually treated with sub-perception (paresthesia free) therapy. However, supra-perception stimulation is used during “sweet spot searching” during which active electrodes are selected for the patient. This allows sweet spot searching to occur much more quickly and without the need to wash in the various electrode combinations that are tried. After selecting electrodes using supra-perception therapy, therapy is titrated to sub-perception levels using the selected electrodes. Such sub-perception therapy has been investigated using pulses at or below 10 kHz, and it has been determined that a statistically significant correlation exists between pulse width (PW) and frequency (F) in this frequency range at which SCS patients experience significant reduction in symptoms such as back pain.
    Type: Application
    Filed: May 24, 2021
    Publication date: September 9, 2021
    Inventors: Que T. Doan, Jianwen Gu, Ismael Huertas Fernandez, Rosana Esteller, Michael A. Moffitt
  • Publication number: 20210046314
    Abstract: Methods and systems for testing and treating spinal cord stimulation (SCS) patients are disclosed. Patients are eventually treated with sub-perception (paresthesia free) therapy. However, supra-perception stimulation is used during “sweet spot searching” during which active electrodes are selected for the patient. This allows sweet spot searching to occur much more quickly and without the need to wash in the various electrode combinations that are tried. After selecting electrodes using supra-perception therapy, therapy is titrated to sub-perception levels using the selected electrodes. Such sub-perception therapy has been investigated using pulses at or below 10 kHz, and it has been determined that a statistically significant correlation exists between pulse width (PW) and frequency (F) in this frequency range at which SCS patients experience significant reduction in symptoms such as back pain.
    Type: Application
    Filed: November 4, 2020
    Publication date: February 18, 2021
    Inventors: Que T. Doan, Jianwen Gu, Ismael Huertas Fernandez, Rosana Esteller, Michael A. Moffitt
  • Publication number: 20200215330
    Abstract: An example of a system for controlling delivery of neurostimulation from a stimulation device to a patient according to a selected neurostimulation program may include a programming device. The programming device may be configured to be communicatively coupled to the stimulation device and to select the neurostimulation program. The programing device may include a user interface and a program selection circuit. The program selection circuit may be configured to receive life factor information indicative of at least one of an environmental factor and a biopsychosocial factor of the patient, to select the neurostimulation program from a plurality of neurostimulation programs based on the received life factor information, to present a recommendation using the user interface based on the selected neurostimulation program, and to receive a user command responding to the recommendation using the user interface.
    Type: Application
    Filed: January 7, 2020
    Publication date: July 9, 2020
    Inventors: Ismael Huertas Fernandez, Que T. Doan
  • Publication number: 20200197704
    Abstract: Methods and systems for testing and treating spinal cord stimulation (SCS) patients are disclosed. Patients are eventually treated with sub-perception (paresthesia free) therapy. However, supra-perception stimulation is used during “sweet spot searching” during which active electrodes are selected for the patient. This allows sweet spot searching to occur much more quickly and without the need to wash in the various electrode combinations that are tried. After selecting electrodes using supra-perception therapy, therapy is titrated to sub-perception levels using the selected electrodes. Such sub-perception therapy has been investigated using pulses at or below 10 kHz, and it has been determined that a statistically significant correlation exists between pulse width (PW) and frequency (F) in this frequency range at which SCS patients experience significant reduction in symptoms such as back pain.
    Type: Application
    Filed: March 2, 2020
    Publication date: June 25, 2020
    Inventors: Que T. Doan, Jianwen Gu, Ismael Huertas Fernandez, Rosana Esteller, Michael A. Moffitt
  • Publication number: 20200147400
    Abstract: Methods and systems for providing stimulation therapy are disclosed. Embodiments of the system include an implantable stimulator and an external controller configured to control the implantable stimulator. A clinician can prescribe a set amount of stimulation therapy to a patient. The external controller is programmed with the prescription. As the patient uses the external controller and the stimulator device the external controller tracks the amount of stimulation the patient uses. Once the patient has used all of the prescribed therapy the patient may return to the clinician for a follow-up appointment.
    Type: Application
    Filed: January 13, 2020
    Publication date: May 14, 2020
    Inventors: Michael A. Moffitt, Ismael Huertas Fernandez
  • Publication number: 20200147392
    Abstract: New waveforms for use in an implantable pulse generator or external trial stimulator are disclosed which mimic actively-driven biphasic pulses, and which are particularly useful for issuing low frequencies pulses. The waveforms comprise at each electrode interleaved first and second pulses. Each first pulse comprises a first monophasic pulse and a first passive charge recovery period. Each second pulse comprises a second monophasic pulse with a polarity opposite the first monophasic pulse and a second passive charge recovery period. Preferably, the amplitudes and pulse widths of the first and second monophasic pulses are equal, or at least charge balanced at each electrode. The first and second monophasic pulses mimic the functionality of a symmetric biphasic pulse, with the first monophasic pulse mimicking the functionality of the biphasic pulse's first phase, and the with the second monophasic pulse mimicking the functionality of the biphasic pulse's second phase.
    Type: Application
    Filed: January 13, 2020
    Publication date: May 14, 2020
    Inventors: Que T. Doan, Luca Antonello Annecchino, Ismael Huertas Fernandez
  • Publication number: 20200147397
    Abstract: Methods for determining stimulation for a patient having a stimulator device are disclosed. A model is received at an external system indicative of a range or volume of preferred stimulation parameters, which model is preferably specific to and determined for the patient. The external system receives a plurality of pieces of fitting information for the patient, including information indicative of a symptom of the patient, information indicative of stimulation provided by the stimulator device during a fitting procedure, and/or phenotype information for the patient. The external system determines one or more sets of stimulation parameters for the patient using the pieces of fitting information. In one example, training data is applied to the pieces of fitting information to select the one or more sets of stimulation parameters from the range or volume of preferred stimulation parameters in the model.
    Type: Application
    Filed: January 9, 2020
    Publication date: May 14, 2020
    Inventors: Ismael Huertas Fernandez, Que T. Doan, Michael A. Moffitt, Changfang Zhu
  • Publication number: 20200147388
    Abstract: Methods and systems for assisting a patient to reprogram parameters of an implantable medical device, such as a spinal cord stimulator, are disclosed. A patient may use an external controller, which may be either a dedicated device or a personal computing device, to interact with their implantable medical device and evaluate the efficacy of their therapy. If the efficacy diminishes, the patient may use their external controller to adjust either the neural dosage (i.e., frequency, pulse width, and/or amplitude) and/or the location at which stimulation is provided. A reprogramming assistant is provided, which guides the patient in adjusting their stimulation using their external controller. The patient may use supra-perception or sub-perception stimulation for the adjustment. The implantable medical device may include pre-programmed “rescue programs” to assist the patient in recovering the efficacy of their therapy.
    Type: Application
    Filed: January 13, 2020
    Publication date: May 14, 2020
    Inventors: Ismael Huertas Fernandez, Que T. Doan
  • Publication number: 20200101302
    Abstract: A system may be used with a medical imaging system and a programming system. The medical imaging system may be configured to display a medical image and the programming system may be configured to implement a program used in programming a neuromodulation device. The system may comprise a mobile device having at least one processor, a camera and a user interface including a display. The mobile device may be configured to acquire a displayed medical image from the medical imaging system, determine based on the acquired medical image location data indicative of the position of at least one of the electrodes relative to at least one of the anatomy or at least another one of the electrodes, and provide the location data for use by the program implemented by the programming system.
    Type: Application
    Filed: September 11, 2019
    Publication date: April 2, 2020
    Inventors: Ismael Huertas Fernandez, Matthew Lee McDonald, Amarpreet Singh Bains, Anirudh Joshi
  • Patent number: 10576282
    Abstract: Methods and systems for testing and treating spinal cord stimulation (SCS) patients are disclosed. Patients are eventually treated with sub-perception (paresthesia free) therapy. However, supra-perception stimulation is used during “sweet spot searching” during which active electrodes are selected for the patient. This allows sweet spot searching to occur much more quickly and without the need to wash in the various electrode combinations that are tried. After selecting electrodes using supra-perception therapy, therapy is titrated to sub-perception levels using the selected electrodes. Such sub-perception therapy has been investigated using pulses at or below 10 kHz, and it has been determined that a statistically significant correlation exists between pulse width (PW) and frequency (F) in this frequency range at which SCS patients experience significant reduction in symptoms such as back pain.
    Type: Grant
    Filed: August 10, 2018
    Date of Patent: March 3, 2020
    Assignee: Boston Scientific Neuromodulation Corporation
    Inventors: Que T. Doan, Jianwen Gu, Ismael Huertas Fernandez, Rosana Esteller, Michael A. Moffitt
  • Publication number: 20200046980
    Abstract: A method is disclosed for programming a patient's stimulator device using an external device. The method obtains information such as a model at the external device, wherein the information is specific to the patient, wherein the information comprises a range or volume of stimulation parameters determined based on testing of the patient that preferably provide sub-perception therapy; and providing from the external device instructions for execution at the stimulator device, the instructions specifying an amplitude, a pulse width, and a frequency of stimulation pulses to be provided at one of more of electrodes in an electrode array of the patient's stimulator device, wherein the instructions vary over time at least one of the amplitude, pulse width, and frequency within the range or volume. Varying at least one of these parameters helps in preventing the patient's neural tissue from become habituated when compared to stimulation that is provided without variance.
    Type: Application
    Filed: October 18, 2019
    Publication date: February 13, 2020
    Inventors: Michael A. Moffitt, Ismael Huertas Fernandez
  • Publication number: 20200009394
    Abstract: A method is disclosed for programming a patient's stimulator device using an external device. The method provides a Graphical User Interface (GUI) on the external device that allows the patient to select from a plurality of displayed stimulation modes to program stimulation provided by one or more electrodes of the stimulator device. The external device stores a model derived for the patient, which model comprises information indicative of a plurality of frequency/pulse width/amplitude coordinates predicted to provide optimal stimulation for the patient. Each stimulation mode corresponds with a subset of coordinates defined in accordance with the plurality of coordinates in the model. Selection of one of the stimulation modes limits programming the stimulator device with coordinates that are within the corresponding subset of coordinates.
    Type: Application
    Filed: July 2, 2019
    Publication date: January 9, 2020
    Inventors: Ismael Huertas Fernandez, Que T. Doan, Changfang Zhu, Rosana Esteller, Michael A. Moffitt
  • Publication number: 20200009367
    Abstract: An algorithm for determining optimal sub-perception stimulation parameters for a Spinal Cord Stimulation patient is disclosed. The algorithm uses various modelling information, including a model determined based on empirical testing that relates optimal frequencies and pulse widths with perception thresholds reported by patients at those frequencies and pulse widths. A patient's perception threshold is then measured at different pulse widths, with the result compared to the model to determine a range or volume in the model that best relates frequency pulse width and perception threshold for that patient. Further modeling allows the perception thresholds to be related to an optimal amplitudes, thus resulting in optimal situation parameters (F, PW, and A) for the patient. The optimal stimulation parameters may be provided to a patient's external controller to allow the patient to adjust stimulation within a range of volume of these parameters.
    Type: Application
    Filed: July 2, 2019
    Publication date: January 9, 2020
    Inventors: Ismael Huertas Fernandez, Que T. Doan
  • Publication number: 20200001086
    Abstract: A system may include at least one sensor configured to bilaterally sense neurophysiological signals from the patient to provide bilateral sensing data, and at least one processor configured to calibrate at least a first electrode contact and a second electrode contact on the least one neuromodulation lead, including: instruct the neuromodulation device to deliver neuromodulation energy using at least the first electrode contact to cause a first neurophysiological response and at least the second electrode contact to cause a second neurophysiological response; receive from the at least one sensor first bilateral sensed data corresponding to the first neurophysiological response and second bilateral sensed data corresponding to the second neurophysiological response; and determine based on the first and second neurophysiological responses at least one of: physiological midline information or electrode-tissue coupling information.
    Type: Application
    Filed: June 27, 2019
    Publication date: January 2, 2020
    Inventors: Ismael Huertas Fernandez, Que T. Doan
  • Publication number: 20190046800
    Abstract: Methods and systems for testing and treating spinal cord stimulation (SCS) patients are disclosed. Patients are eventually treated with sub-perception (paresthesia free) therapy. However, supra-perception stimulation is used during “sweet spot searching” during which active electrodes are selected for the patient. This allows sweet spot searching to occur much more quickly and without the need to wash in the various electrode combinations that are tried. After selecting electrodes using supra-perception therapy, therapy is titrated to sub-perception levels using the selected electrodes. Such sub-perception therapy has been investigated using pulses at or below 10 kHz, and it has been determined that a statistically significant correlation exists between pulse width (PW) and frequency (F) in this frequency range at which SCS patients experience significant reduction in symptoms such as back pain.
    Type: Application
    Filed: August 10, 2018
    Publication date: February 14, 2019
    Inventors: Que T. Doan, Jianwen Gu, Ismael Huertas Fernandez, Rosana Esteller, Michael A. Moffitt