Patents by Inventor Xuan Wei

Xuan 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).

  • Patent number: 8521292
    Abstract: 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. In some examples, objective incontinence information is generated based upon the trigger events. The system and/or user may then use this objective incontinence information to adjust therapy or select new therapy programs for improved efficacy.
    Type: Grant
    Filed: October 21, 2010
    Date of Patent: August 27, 2013
    Assignee: Medtronic, Inc.
    Inventors: Xuan Wei, Eric H. Bonde
  • Patent number: 8443036
    Abstract: Techniques are described for exchanging data between software applications, such as project-related data between a project management software application (“PMSA”) and an unaffiliated organizational project tracking software application (“OPTSA”). A computing architecture with multiple interacting computer systems, such as a client-server architecture, can be used to allow users of remote computing systems to access project-related data and/or functionality from other computing systems, such as a thin client computing system with limited or no local capabilities to execute software applications and/or store associated application data accessing a remote central server computing system in order to interact with a PMSA executing on the server, to interact with an OPTSA executing on the server, and/or to invoke data exchange functionality available at the server for exchanging project-related data between the PMSA and OPTSA.
    Type: Grant
    Filed: March 31, 2003
    Date of Patent: May 14, 2013
    Assignee: Siebel Systems, Inc.
    Inventors: Jimin Li, Cory D. Wiegert, Kwong Ming Tse, Xuan Wei, James Gan Fong, Matthew Philip Grumbach
  • Patent number: 8417355
    Abstract: A method and apparatus permit sensing one or more forces exerted by one or more portions of a heart. A force transducer and displacement sensor are disclosed. A movement of one or more portions of a heart can be translated into one or more signals indicative of force. These signals can be used to provide information such as to diagnose or treat one or more conditions.
    Type: Grant
    Filed: November 5, 2010
    Date of Patent: April 9, 2013
    Assignee: Cardiac Pacemakers, Inc.
    Inventors: Yongxing Zhang, Yunlong Zhang, Xuan Wei
  • Patent number: 8290596
    Abstract: A therapy program is selected based on a patient state, where the patient state comprises at least one of a movement state, sleep state or speech state. In this way, therapy delivery is tailored to the patient state, which may include specific patient symptoms. The therapy program is selected from a plurality of stored therapy programs that comprise therapy programs associated with a respective one at least two of the movement, sleep, and speech states. Techniques for determining a patient state include receiving volitional patient input or detecting biosignals generated within the patient's brain. The biosignals are nonsymptomatic and may be incidental to the movement, sleep, and speech states or generated in response to volitional patient input.
    Type: Grant
    Filed: September 25, 2008
    Date of Patent: October 16, 2012
    Assignee: Medtronic, Inc.
    Inventors: Xuan Wei, Richard T. Stone, Timothy J. Denison, Gregory F. Molnar
  • Publication number: 20120226328
    Abstract: Systems and methods involve determination of CRT parameters using a number of CRT optimization processes. Each CRT optimization process attempts to return recommended parameters. The CRT parameters are determined based on the recommended parameters returned by one or more of the CRT optimization processes. The CRT optimization processes may be sequentially implemented and the CRT parameters may be determined based on the recommended parameters returned by a first CRT optimization process to return recommended parameters. The CRT parameters may be determined based on a combination of the recommended parameters returned. The CRT optimization processes implemented may be selected from available CRT optimization processes based on patient conditions.
    Type: Application
    Filed: May 8, 2012
    Publication date: September 6, 2012
    Inventors: Yanting Dong, Yinghong Yu, Jiang Ding, Scott A. Meyer, Xuan Wei, Michael John Stucky
  • Publication number: 20120197356
    Abstract: Electrical stimulation systems and methods are configured to deliver remote electrical stimulation to a patient. Stimulation waveforms are employed that are designed to penetrate tissue within a patient to transmit the electrical stimulation from an origination site to a remote delivery site. The waveforms are defined by a series of pulses, which are characterized by a number of parameters, including pulse width, pulse frequency, constant voltage or constant current amplitude, and electrode polarity (anode or cathode). The waveforms include an envelope electrical stimulation pulse train including charge balanced pulses modulated by a high frequency carrier signal configured to deeply penetrate patient tissue to carry the electrical pulse train from an origination site to a remote delivery site.
    Type: Application
    Filed: January 20, 2012
    Publication date: August 2, 2012
    Applicant: Medtronic, Inc.
    Inventors: Xuan Wei, Duane L. Bourget
  • Patent number: 8175703
    Abstract: Systems and methods involve determination of CRT parameters using a number of CRT optimization processes. Each CRT optimization process attempts to return recommended parameters. The CRT parameters are determined based on the recommended parameters returned by one or more of the CRT optimization processes. The CRT optimization processes may be sequentially implemented and the CRT parameters may be determined based on the recommended parameters returned by a first CRT optimization process to return recommended parameters. The CRT parameters may be determined based on a combination of the recommended parameters returned. The CRT optimization processes implemented may be selected from available CRT optimization processes based on patient conditions.
    Type: Grant
    Filed: January 25, 2006
    Date of Patent: May 8, 2012
    Assignee: Cardiac Pacemakers, Inc.
    Inventors: Yanting Dong, Yinghong Yu, Jiang Ding, Scott A. Meyer, Xuan Wei, Michael John Stucky
  • Publication number: 20120096086
    Abstract: A method and apparatus for recommending a media program of a set of media programs to a user of a set of users is disclosed. The method and apparatus computes a measure wij of the implied similarity of a first media program (i) and a second media program (j) that corrects for the popularity of the media programs, thus resulting in a more accurate indication of the relatedness of the media programs.
    Type: Application
    Filed: December 21, 2010
    Publication date: April 19, 2012
    Applicant: HULU LLC
    Inventors: Xuan Wei, Hang Li, Hua Zheng, Ting-hao Yang, Richard W. Tom
  • Patent number: 8027724
    Abstract: An example relates to a method for sensing a pulmonary artery pressure (PAP) and providing a sensed PAP signal, detecting an abnormal blood pressure (BP) condition using information from the sensed PAP signal, delivering a pacing energy to a heart, and automatically altering at least one pacing characteristic in response to the detected abnormal BP condition. The detecting an abnormal BP condition can include detecting various forms of hypertension or hypotension. The automatically altering the at least one pacing characteristic can include automatically altering at least one of a pacing rate, a pacing waveform, an atriventricular (AV) delay, an interventricular (VV) delay, a pacing mode, or a pacing site. The method can also include delivering vagal nerve stimulation and automatically altering the vagal nerve stimulation in response to the detected abnormal BP condition. The detecting the abnormal BP condition can also include using a sensed auxiliary physiological parameter.
    Type: Grant
    Filed: August 3, 2007
    Date of Patent: September 27, 2011
    Assignee: Cardiac Pacemakers, Inc.
    Inventors: Xuan Wei, Cheng Zhang, Shantha Arcot-Krishnamurthy, Dan Li
  • Publication number: 20110118805
    Abstract: 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. In some examples, objective incontinence information is generated based upon the trigger events. The system and/or user may then use this objective incontinence information to adjust therapy or select new therapy programs for improved efficacy.
    Type: Application
    Filed: October 21, 2010
    Publication date: May 19, 2011
    Applicant: Medtronic, Inc.
    Inventors: Xuan Wei, Eric H. Bonde
  • Publication number: 20110112594
    Abstract: A system and method for painlessly calculating an estimated defibrillation threshold, such as by using an implantable medical device and a controller. The estimated defibrillation threshold can be calculated using a delivered first energy to a first thoracic location, an electric field detected at a second thoracic location, and an electric field detected between a third thoracic location and a fourth thoracic location. The estimated defibrillation threshold represents an energy that, when delivered at the first thoracic location, can create an electric field strength in a target region of the heart that meets or exceeds a target electric field strength.
    Type: Application
    Filed: January 20, 2011
    Publication date: May 12, 2011
    Inventor: Xuan Wei
  • Publication number: 20110046496
    Abstract: A method and apparatus permit sensing one or more forces exerted by one or more portions of a heart. A force transducer and displacement sensor are disclosed. A movement of one or more portions of a heart can be translated into one or more signals indicative of force. These signals can be used to provide information such as to diagnose or treat one or more conditions.
    Type: Application
    Filed: November 5, 2010
    Publication date: February 24, 2011
    Inventors: Yongxing Zhang, Yunlong Zhang, Xuan Wei
  • Patent number: 7890167
    Abstract: A system and method for painlessly calculating an estimated defibrillation threshold, such as by using an implantable medical device and a controller. The estimated defibrillation threshold can be calculated using a delivered first energy to a first thoracic location, an electric field detected at a second thoracic location, and an electric field detected between a third thoracic location and a fourth thoracic location. The estimated defibrillation threshold represents an energy that, when delivered at the first thoracic location, can create an electric field strength in a target region of the heart that meets or exceeds a target electric field strength.
    Type: Grant
    Filed: April 3, 2007
    Date of Patent: February 15, 2011
    Assignee: Cardiac Pacemakers, Inc.
    Inventor: Xuan Wei
  • Patent number: 7873414
    Abstract: A system including at least one implantable sensor circuit adapted to produce an electrical sensor signal related to one or more physiologic cardiovascular events of a subject, a therapy circuit configured to provide anti-tachycardia pacing (ATP) therapy, and a controller. The controller includes a tachyarrhythmia detection circuit and an efficacy circuit. The tachyarrhythmia detection circuit is configured to detect a tachyarrhythmia episode in the subject using the electrical sensor signal, and to determine whether the tachyarrhythmia episode is of a type that is treatable with ATP. The efficacy circuit is configured to estimate an efficacy of a currently configured ATP therapy for the subject, and the controller is configured to alter a delivery regimen of the currently configured ATP therapy when the estimated ATP therapy efficacy is deemed insufficient. Other systems and methods are described.
    Type: Grant
    Filed: April 17, 2007
    Date of Patent: January 18, 2011
    Assignee: Cardiac Pacemakers, Inc.
    Inventors: Yanting Dong, Quan Ni, Xuan Wei, Dan Li, Qian Zhong
  • Patent number: 7848822
    Abstract: A method and apparatus permit sensing one or more forces exerted by one or more portions of a heart. A force transducer and displacement sensor are disclosed. A movement of one or more portions of a heart can be translated into one or more signals indicative of force. These signals can be used to provide information such as to diagnose or treat one or more conditions.
    Type: Grant
    Filed: November 14, 2006
    Date of Patent: December 7, 2010
    Assignee: Cardiac Pacemakers, Inc.
    Inventors: Yongxing Zhang, Yunlong Zhang, Xuan Wei
  • Patent number: 7836103
    Abstract: Techniques are described for exchanging data between software applications, such as project-related data between a project management software application (“PMSA”) and an unaffiliated organizational project tracking software application (“OPTSA”). A mapping and other related information may be defined for the data exchange, such as by defining data fields of the OPTSA database and PMSA data file that correspond, and optionally specifying related information such as additional processing to be performed for various data fields during the data exchange, conditions when a mapping is to be used, ordering information for data fields during import and/or export, preferred data formats for stored values, etc. Also, in some situations round-trip data import/export is performed for a single PMSA data file, which may include tracking whether data entity instances previously existed in the destination in order to support changes to stored inter-relationships between data entity instances.
    Type: Grant
    Filed: December 30, 2002
    Date of Patent: November 16, 2010
    Assignee: Siebel Systems, Inc.
    Inventors: Jimin Li, Xuan Wei, Cory D. Wiegert, James Gan Fong, Kwong Ming Tse, Guoquan Zhou
  • Patent number: 7711425
    Abstract: A nondefibrillating and nonfibrillation-inducing energy is delivered at a first internal thoracic location. A first resulting electrical signal is detected at a second internal thoracic location in or near a target region of a heart. A first defibrillation threshold is estimated using the nondefibrillating and nonfibrillation-inducing energy, the first resulting electrical signal, and a target electric field strength. The defibrillation threshold represents an energy that when delivered at the first internal thoracic location creates an electric field strength in the target region of the heart that meets or exceeds the target electric field strength.
    Type: Grant
    Filed: August 22, 2005
    Date of Patent: May 4, 2010
    Assignee: Cardiac Pacemakers, Inc.
    Inventors: Xuan Wei, Robert J. Sweeney, Joseph M. Bocek, Scott A. Meyer, Jeffrey E. Stahmann, Yi Zhang
  • Publication number: 20100023078
    Abstract: Systems and methods involve determination of CRT parameters using a number of CRT optimization processes. Each CRT optimization process attempts to return recommended parameters. The CRT parameters are determined based on the recommended parameters returned by one or more of the CRT optimization processes. The CRT optimization processes may be sequentially implemented and the CRT parameters may be determined based on the recommended parameters returned by a first CRT optimization process to return recommended parameters. The CRT parameters may be determined based on a combination of the recommended parameters returned. The CRT optimization processes implemented may be selected from available CRT optimization processes based on patient conditions.
    Type: Application
    Filed: January 25, 2006
    Publication date: January 28, 2010
    Inventors: Yanting Dong, Yinghong Yu, Jiang Ding, Scott A. Meyer, Xuan Wei, Michael John Stucky
  • Publication number: 20090264789
    Abstract: A set of therapy parameter values is selected based on a patient state, where the patient state comprises a speech state or a mixed patient state including the speech state and at least one of a movement state or a sleep state. In this way, therapy delivery is tailored to the patient state, which may include one or more patient symptoms specific to the patient state. In some examples, a medical device determines whether the patient is in the speech state or a mixed patient state including the speech state based on a signal generated by a voice activity sensor. The voice activity sensor detects the use of the patient's voice, and may include a microphone, a vibration detector or an accelerometer.
    Type: Application
    Filed: April 28, 2009
    Publication date: October 22, 2009
    Inventors: Gregory F. Molnar, Richard T. Stone, Xuan Wei
  • Publication number: 20090105785
    Abstract: A therapy program is selected based on a patient state, where the patient state comprises at least one of a movement state, sleep state or speech state. In this way, therapy delivery is tailored to the patient state, which may include specific patient symptoms. The therapy program is selected from a plurality of stored therapy programs that comprise therapy programs associated with a respective one at least two of the movement, sleep, and speech states. Techniques for determining a patient state include receiving volitional patient input or detecting biosignals generated within the patient's brain. The biosignals are nonsymptomatic and may be incidental to the movement, sleep, and speech states or generated in response to volitional patient input.
    Type: Application
    Filed: September 25, 2008
    Publication date: April 23, 2009
    Applicant: Medtronic, Inc.
    Inventors: Xuan Wei, Richard T. Stone, Timothy J. Denison, Gregory F. Molnar