Patents by Inventor Xuan K. Wei
Xuan K. Wei 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).
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Patent number: 10201335Abstract: An implantable medical device (IMD) has a housing enclosing an electronic circuit. The housing includes a first housing portion, a second housing portion and a joint coupling the first housing portion to the second housing portion. A polymer seal is positioned in the joint in various embodiments. Other embodiments of an IMD housing are disclosed.Type: GrantFiled: July 25, 2016Date of Patent: February 12, 2019Assignee: Medtronic, Inc.Inventors: Brad C. Tischendorf, John E. Kast, Thomas P. Miltich, Gordon O. Munns, Randy S. Roles, Craig L. Schmidt, Joseph J. Viavattine, Christian S. Nielsen, Prabhakar A. Tamirisa, Anthony M. Chasensky, Markus W. Reiterer, Chris J. Paidosh, Reginald D. Robinson, Bernard Q. Li, Erik R. Scott, Phillip C. Falkner, Xuan K. Wei, Eric H. Bonde
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Patent number: 10201702Abstract: Electrical stimulation is delivered to a patient based on input from a patient indicative of an intent of the patient to contract a pelvic floor muscle or an attempt by the patient to contract the pelvic floor muscle. The electrical stimulation is configured to induce a contraction of the pelvic floor muscle of the patient to strengthen the pelvic floor muscle.Type: GrantFiled: November 28, 2011Date of Patent: February 12, 2019Assignee: MEDTRONIC, INC.Inventors: Eric H. Bonde, Xuan K. Wei
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Patent number: 10076661Abstract: In general, the disclosure describes techniques for providing conditional electrical stimulation to a patient for pelvic health. An implantable medical device (IMD) may adjust the delivery cycle of the electrical stimulation applied to a patient in response to receiving a delivery cycle parameter associated with one or more of the following: a time in a time schedule, a control device output from a control device, and physiological information from a physiological information sensing device. As an example, the IMD may monitor a status of one or more inputs of the IMD and adjust the delivery cycle of the electrical stimulation applied to the patient based on the status of the input(s).Type: GrantFiled: December 23, 2016Date of Patent: September 18, 2018Assignee: Medtronic, Inc.Inventors: Xuan K. Wei, Eric H. Bonde
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Patent number: 10045764Abstract: 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: GrantFiled: October 25, 2017Date of Patent: August 14, 2018Assignee: 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
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Publication number: 20180168564Abstract: A neuromodulation therapy is delivered via at least one electrode implanted subcutaneously and superficially to a fascia layer superficial to a nerve of a patient. In one example, an implantable medical device is deployed along a superficial surface of a deep fascia tissue layer superficial to a nerve of a patient. Electrical stimulation energy is delivered to the nerve through the deep fascia tissue layer via implantable medical device electrodes.Type: ApplicationFiled: February 20, 2018Publication date: June 21, 2018Inventors: Brad C. Tischendorf, Eric H. Bonde, Phillip C. Falkner, John E. Kast, Randy S. Roles, Erik R. Scott, Todd V. Smith, Xuan K. Wei, Anthony M. Chasensky, Michael J. Ebert, Shawn C. Kelley, Gabriela C. Molnar, Richard T. Stone
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Patent number: 9950179Abstract: Devices, systems, and techniques for delivering trial stimulation therapy to a patient are disclosed. A trial neurostimulator (e.g., an IMD) may be implanted within a patient to deliver stimulation therapy during a relatively short trial period of time. This IMD may include limited circuitry and be powered by an external power source to minimize the size of the IMD within the patient. The IMD may include a non-hermetic housing capable of protecting the IMD circuitry for the trial period of time. In one example, the IMD may include a secondary coil configured to generate an electrical signal in response to a magnetic field generated by an external primary coil, circuitry configured to generate a stimulation signal in response to the electrical signal, and a non-hermetic implantable housing configured to encase or otherwise house the secondary coil and the circuitry.Type: GrantFiled: October 23, 2012Date of Patent: April 24, 2018Assignee: Medtronic, Inc.Inventors: Eric H. Bonde, Xuan K. Wei
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Patent number: 9931107Abstract: A neuromodulation therapy is delivered via at least one electrode implanted subcutaneously and superficially to a fascia layer superficial to a nerve of a patient. In one example, an implantable medical device is deployed along a superficial surface of a deep fascia tissue layer superficial to a nerve of a patient. Electrical stimulation energy is delivered to the nerve through the deep fascia tissue layer via implantable medical device electrodes.Type: GrantFiled: December 6, 2013Date of Patent: April 3, 2018Assignee: Medtronic, Inc.Inventors: Brad C. Tischendorf, Eric H. Bonde, Phillip C. Falkner, John E. Kast, Randy S. Roles, Erik R. Scott, Todd V. Smith, Xuan K. Wei, Anthony M. Chasensky, Michael J. Ebert, Shawn C. Kelley, Gabriela C. Molnar, Richard T. Stone
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Publication number: 20180055500Abstract: 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: ApplicationFiled: October 25, 2017Publication date: March 1, 2018Inventors: 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
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Publication number: 20180000576Abstract: A urinary tract valve includes an expandable valve element positionable within a bladder of a patient via a urinary tract of the patient in a collapsed configuration. The expandable valve element is configured to transition from the collapsed configuration to an expanded configuration after being positioned within the bladder of the patient. The expandable valve element includes a ferromagnetic element that facilitates selective control of the expandable valve element with a magnetic field between an open position and a closed position when positioned within the bladder of the patient. In the closed position, the expandable valve element is configured to seal an internal urethral opening of the patient. In the open position, the expandable valve element is configured to allow urine to pass from the bladder of the patient, through an internal urethral opening of the patient and into a urethra of the patient.Type: ApplicationFiled: September 18, 2017Publication date: January 4, 2018Inventors: Xuan K. Wei, Eric H. Bonde, Charles Thomas Bombeck
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Patent number: 9826963Abstract: 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: GrantFiled: December 6, 2013Date of Patent: November 28, 2017Assignee: 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
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Patent number: 9763762Abstract: A urinary tract valve includes an expandable valve element positionable within a bladder of a patient via a urinary tract of the patient in a collapsed configuration. The expandable valve element is configured to transition from the collapsed configuration to an expanded configuration after being positioned within the bladder of the patient. The expandable valve element includes a ferromagnetic element that facilitates selective control of the expandable valve element with a magnetic field between an open position and a closed position when positioned within the bladder of the patient. In the closed position, the expandable valve element is configured to seal an internal urethral opening of the patient. In the open position, the expandable valve element is configured to allow urine to pass from the bladder of the patient, through an internal urethral opening of the patient and into a urethra of the patient.Type: GrantFiled: September 24, 2014Date of Patent: September 19, 2017Assignee: Medtronic, Inc.Inventors: Xuan K. Wei, Eric H. Bonde, Charles Thomas Bombeck
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Publication number: 20170239470Abstract: In some examples, a technique for delivering electrical stimulation therapy to a patient includes determining, by processing circuitry, one or more cycle settings associated with delivery of the electrical stimulation therapy, determining, by the processing circuitry, a cycle time period associated with each cycle setting, and delivering, by a medical device, electrical stimulation therapy based on the determined cycle settings and the determined cycle time periods. Each cycle setting may define an on-cycle, during which electrical stimulation is delivered, and an off-cycle, during which electrical stimulation is not delivered. The technique further may include delivering electrical stimulation to the patient to provide one or more reminders to the patient, such as a reminder to void or a reminder of the existence of electrical stimulation.Type: ApplicationFiled: February 17, 2017Publication date: August 24, 2017Inventors: Xuan K. Wei, Ryan D. Willemsen, Dwight E. Nelson, Sudha B. Iyer, Kira Stolen, Xin Su
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Patent number: 9724511Abstract: Techniques for managing urinary or fecal incontinence include delivering a first type of therapy to generate a first physiological response and, upon detecting a trigger event, delivering a second type of therapy to generate a second physiological response. The first type of therapy can be delivered on a substantially regular basis, while the second type of therapy is delivered as needed to provide an additional boost of therapy. The trigger event for activating the delivery of the second type of therapy may include input from a sensor that indicates a bladder condition, patient activity level or patient posture, or patient input. In some examples, the therapy is stimulation therapy.Type: GrantFiled: September 2, 2016Date of Patent: August 8, 2017Assignee: Medtronic, Inc.Inventors: Xuan K. Wei, Eric H. Bonde, Keith A. Miesel, Mark S. Lent, Gregory F. Molnar
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Publication number: 20170173327Abstract: In general, the disclosure describes techniques for providing conditional electrical stimulation to a patient for pelvic health. An implantable medical device (IMD) may adjust the delivery cycle of the electrical stimulation applied to a patient in response to receiving a delivery cycle parameter associated with one or more of the following: a time in a time schedule, a control device output from a control device, and physiological information from a physiological information sensing device. As an example, the IMD may monitor a status of one or more inputs of the IMD and adjust the delivery cycle of the electrical stimulation applied to the patient based on the status of the input(s).Type: ApplicationFiled: December 23, 2016Publication date: June 22, 2017Inventors: Xuan K. Wei, Eric H. Bonde
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Publication number: 20170136244Abstract: In some examples, an implantable medical device includes an implantable housing, a neurostimulator within the housing, a plurality of electrodes, an implantable lead coupled to the housing, and an actuator formed with the housing. The implantable lead includes at least one electrode of the plurality of electrodes and one or more conductors coupling the at least one electrode to the neurostimulator. The actuator is configured to cause at least a portion of the implantable lead to deflect.Type: ApplicationFiled: October 26, 2016Publication date: May 18, 2017Inventors: Eric H. Bonde, John E. Kast, Erik R. Scott, Xuan K. Wei
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Patent number: 9561366Abstract: In general, the disclosure describes techniques for providing conditional electrical stimulation to a patient for pelvic health. An implantable medical device (IMD) may adjust the delivery cycle of the electrical stimulation applied to a patient in response to receiving a delivery cycle parameter associated with one or more of the following: a time in a time schedule, a control device output from a control device, and physiological information from a physiological information sensing device. As an example, the IMD may monitor a status of one or more inputs of the IMD and adjust the delivery cycle of the electrical stimulation applied to the patient based on the status of the input(s).Type: GrantFiled: September 20, 2011Date of Patent: February 7, 2017Assignee: Medtronic, Inc.Inventors: Xuan K. Wei, Eric H. Bonde
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Publication number: 20160367803Abstract: Techniques for managing urinary or fecal incontinence include delivering a first type of therapy to generate a first physiological response and, upon detecting a trigger event, delivering a second type of therapy to generate a second physiological response. The first type of therapy can be delivered on a substantially regular basis, while the second type of therapy is delivered as needed to provide an additional boost of therapy. The trigger event for activating the delivery of the second type of therapy may include input from a sensor that indicates a bladder condition, patient activity level or patient posture, or patient input. In some examples, the therapy is stimulation therapy.Type: ApplicationFiled: September 2, 2016Publication date: December 22, 2016Inventors: Xuan K. Wei, Eric H. Bonde, Keith A. Miesel, Mark S. Lent, Gregory F. Molnar
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Publication number: 20160331978Abstract: An implantable medical device (IMD) has a housing enclosing an electronic circuit. The housing includes a first housing portion, a second housing portion and a joint coupling the first housing portion to the second housing portion. A polymer seal is positioned in the joint in various embodiments. Other embodiments of an IMD housing are disclosed.Type: ApplicationFiled: July 25, 2016Publication date: November 17, 2016Inventors: Brad C. Tischendorf, John E. Kast, Thomas P. Miltich, Gordon O. Munns, Randy S. Roles, Craig L. Schmidt, Joseph J. Viavattine, Christian S. Nielsen, Prabhakar A. Tamirisa, Anthony M. Chasensky, Markus W. Reiterer, Chris J. Paidosh, Reginald D. Robinson, Bernard Q. Li, Erik R. Scott, Phillip C. Falkner, Xuan K. Wei, Eric H. Bonde
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Patent number: 9433783Abstract: Techniques for managing urinary or fecal incontinence include delivering a first type of therapy to generate a first physiological response and, upon detecting a trigger event, delivering a second type of therapy to generate a second physiological response. The first type of therapy can be delivered on a substantially regular basis, while the second type of therapy is delivered as needed to provide an additional boost of therapy. The trigger event for activating the delivery of the second type of therapy may include input from a sensor that indicates a bladder condition, patient activity level or patient posture, or patient input. In some examples, the therapy is stimulation therapy.Type: GrantFiled: October 9, 2015Date of Patent: September 6, 2016Assignee: Medtronic, Inc.Inventors: Xuan K. Wei, Eric H. Bonde, Keith A. Miesel, Mark S. Lent, Gregory F. Molnar
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Patent number: 9398901Abstract: An implantable medical device (IMD) has a housing enclosing an electronic circuit. The housing includes a first housing portion, a second housing portion and a joint coupling the first housing portion to the second housing portion. A polymer enclosure member surrounds the joint and circumscribes the housing in various embodiments. Other embodiments of an IMD housing are disclosed.Type: GrantFiled: December 6, 2013Date of Patent: July 26, 2016Assignee: Medtronic, Inc.Inventors: Brad C. Tischendorf, John E. Kast, Thomas P. Miltich, Gordon O. Munns, Randy S. Roles, Craig L. Schmidt, Joseph J. Viavattine, Christian S. Nielsen, Prabhakar A. Tamirisa, Anthony M. Chasensky, Markus W. Reiterer, Chris J. Paidosh, Reginald D. Robinson, Bernard Q. Li, Erik R. Scott, Phillip C. Falkner, Xuan K. Wei, Eric H. Bonde