Patents by Inventor Wenjeng Li
Wenjeng Li 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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Publication number: 20200338326Abstract: A method of limiting an inflation system pressure for dilating a region of a patient's nasal sinus passageways. The method includes grasping an inflation device. The inflation device includes a syringe including a plunger slidably disposed within a barrel, a connector for fluidly connecting an outlet of the syringe with a surgical instrument balloon, and a mechanical pressure indicator associated with the syringe, the mechanical pressure indicator including a housing and an indicator body disposed within the housing. The method also includes delivering the surgical instrument balloon to a patient's paranasal sinus target area, operating the plunger within the barrel of the syringe to deliver pressurized fluid to the surgical instrument balloon, and transitioning the indicator body to extend outside of the housing when a predetermined inflation pressure of the surgical instrument balloon is reached.Type: ApplicationFiled: July 15, 2020Publication date: October 29, 2020Applicant: Medtronic Xomed, Inc.Inventors: Wenjeng Li, David J. Little
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Patent number: 10799152Abstract: A stimulation electrode assembly configured to be positioned relative to a patient for an operative procedure is disclosed. An evoked stimulation response may be sensed by a sensor near a portion of a subject. The evoked response may be sensed by an electrode and determined with a monitoring system. The evoked response may additionally and/or alternatively be sensed with a motion sensor. A position sensor may be provided to measure or determine whether the sensor has moved during a procedure.Type: GrantFiled: August 11, 2016Date of Patent: October 13, 2020Assignee: Medtronic Xomed, Inc.Inventors: Dana Michael Inman, Kevin L. McFarlin, Wenjeng Li
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Patent number: 10743817Abstract: An apparatus for monitoring EMG signals of a patient's laryngeal muscles includes an endotracheal tube having an exterior surface. Conductive electrodes are formed on the endotracheal tube. The conductive electrodes are configured to receive the EMG signals from the laryngeal muscles when the endotracheal tube is placed in a trachea of the patient. At least wireless sensor is formed on the endotracheal tube, and is configured to wirelessly transmit information to a processing apparatus.Type: GrantFiled: August 31, 2017Date of Patent: August 18, 2020Assignee: Medtronic Xomed, Inc.Inventors: David C. Hacker, Maria Charles Vijay Stanislaus, Wenjeng Li, Dwayne S. Yamasaki, William C. Brunnett, Kevin L. McFarlin, James Britton Hissong, Robert K. Vaccaro, John M. Murphy, Carla A. Pagotto, Tino Schuler
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Patent number: 10737077Abstract: A method of limiting an inflation system pressure for dilating a region of a patient's nasal sinus passageways. The method includes grasping an inflation device. The inflation device includes a syringe including a plunger slidably disposed within a barrel, a connector for fluidly connecting an outlet of the syringe with a surgical instrument balloon, and a mechanical pressure indicator associated with the syringe, the mechanical pressure indicator including a housing and an indicator body disposed within the housing. The method also includes delivering the surgical instrument balloon to a patient's paranasal sinus target area, operating the plunger within the barrel of the syringe to deliver pressurized fluid to the surgical instrument balloon, and transitioning the indicator body to extend outside of the housing when a predetermined inflation pressure of the surgical instrument balloon is reached.Type: GrantFiled: September 26, 2017Date of Patent: August 11, 2020Assignee: Medtronix Xomed, Inc.Inventors: Wenjeng Li, David J. Little
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Publication number: 20190314080Abstract: A bipolar electrosurgical device is disclosed that operates in a mechanical cutting mode and a hemostasis mode. The device includes a housing and a blade assembly extending from the housing. The blade assembly forms a cutting tip and cutting window at a distal end region to provide mechanical cutting of tissue and first and second electrode assemblies to provide electrical energy to tissue. The first and second electrode assemblies can each include a rotary connection assembly to allow spatial orientation of the cutting window relative to the housing and/or cutting tip.Type: ApplicationFiled: June 28, 2019Publication date: October 17, 2019Applicant: Medtronic Xomed, Inc.Inventors: John R. Prisco, Eric P. Detmers, Wenjeng Li, David J. Little, Patrick Richart, Jose Valdez
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Patent number: 10376302Abstract: A bipolar electrosurgical device is disclosed that operates in a mechanical cutting mode and a hemostasis mode. The device includes a housing and a blade assembly extending from the housing. The blade assembly forms a cutting tip and cutting window at a distal end region to provide mechanical cutting of tissue and first and second electrode assemblies to provide electrical energy to tissue. The first and second electrode assemblies can each include a rotary connection assembly to allow spatial orientation of the cutting window relative to the housing and/or cutting tip.Type: GrantFiled: February 18, 2016Date of Patent: August 13, 2019Assignee: Medtronic Xomed, Inc.Inventors: John R. Prisco, Eric P. Detmers, Wenjeng Li, David J. Little, Patrick Richart, Jose Valdez
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Publication number: 20190183424Abstract: An apparatus for monitoring EMG signals of a patient's laryngeal muscles includes an endotracheal tube having an exterior surface. Conductive electrodes are formed on the endotracheal tube. The conductive electrodes are configured to receive the EMG signals from the laryngeal muscles when the endotracheal tube is placed in a trachea of the patient. At least wireless sensor is formed on the endotracheal tube, and is configured to wirelessly transmit information to a processing apparatus.Type: ApplicationFiled: February 25, 2019Publication date: June 20, 2019Applicant: MEDTRONIC XOMED, INC.Inventors: David C. Hacker, Maria Charles Vijay Stanislaus, Wenjeng Li, Dwayne S. Yamasaki, William C. Brunnett, Kevin L. McFarlin, James Britton Hissong, Robert K. Vaccaro, John M. Murphy, Carla A. Pagotto, Tino Schuler
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Patent number: 10314647Abstract: An electrosurgical device having a tubular outer shaft and an inner shaft is disclosed. The tubular outer shaft includes an axis and a distal end region. The distal end region includes a distal-most tip and a cutting edge defining a window in the outer shaft proximal along the axis to the distal-most tip. The inner shaft inner shaft coaxially maintained within the outer shaft such that the inner shaft is movable about the axis with respect to the outer shaft and wherein a portion of the inner shaft is exposed in the window of the outer shaft. A first electrode is disposed on the outer shaft in a region proximal along the axis to the window, and a second electrode is electrically isolated from the first electrode and disposed on the inner shaft. The second electrode is exposed in the window of the outer shaft.Type: GrantFiled: December 22, 2014Date of Patent: June 11, 2019Assignee: Medtronic Advanced Energy LLCInventors: Eliot F. Bloom, Phillip Berman, Wenjeng Li, David J. Little, Dana A. Oliver, John R. Prisco, Phillip P. Brown, Patrick Richart
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Publication number: 20190117295Abstract: A bipolar electrosurgical device is disclosed that operates in a mechanical cutting mode and a hemostasis mode. The device includes a housing and a blade assembly extending from the housing. The blade assembly forms a cutting tip and cutting window at a distal end region to provide mechanical cutting of tissue and first and second electrode assemblies to provide electrical energy to tissue. The first electrode assembly includes an outer shaft defining a first electrode surface and the second electrode assembly includes an electrode body extending along and electrically isolated from an outer shaft and defining a U-shape in cross section.Type: ApplicationFiled: December 17, 2018Publication date: April 25, 2019Applicant: Medtronic Xomed, Inc.Inventors: John R. Prisco, Eric P. Detmers, Wenjeng Li, David J. Little, Patrick Richart, Jose Valdez
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Publication number: 20190070375Abstract: An apparatus for monitoring EMG signals of a patient's laryngeal muscles includes an endotracheal tube having an exterior surface, and a tube coating applied to the exterior surface via spraying of a homogeneous solution onto the endotracheal tube or immersion of the endotracheal tube in the homogeneous solution. A conductive electrode is formed on the tube coating. The conductive electrode is configured to receive the EMG signals from the laryngeal muscles.Type: ApplicationFiled: September 7, 2017Publication date: March 7, 2019Applicant: Medtronic Xomed, Inc.Inventors: David C. Hacker, Wenjeng Li, Matthew L. Cantwell
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Patent number: 10213160Abstract: An apparatus for monitoring EMG signals of a patient's laryngeal muscles includes an endotracheal tube having an exterior surface. Conductive electrodes are formed on the endotracheal tube. The conductive electrodes are configured to receive the EMG signals from the laryngeal muscles when the endotracheal tube is placed in a trachea of the patient. At least wireless sensor is formed on the endotracheal tube, and is configured to wirelessly transmit information to a processing apparatus.Type: GrantFiled: August 22, 2017Date of Patent: February 26, 2019Assignee: Medtronic Xomed, Inc.Inventors: David C. Hacker, Maria Charles Vijay Stanislaus, Wenjeng Li, Dwayne S. Yamasaki, William C. Brunnett, Kevin L. McFarlin, James Britton Hissong, Robert K. Vaccaro, John M. Murphy, Carla A. Pagotto, Tino Schuler
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Patent number: 10188456Abstract: A bipolar electrosurgical device is disclosed that operates in a mechanical cutting mode and a hemostasis mode. The device includes a housing and a blade assembly extending from the housing. The blade assembly forms a cutting tip and cutting window at a distal end region to provide mechanical cutting of tissue and first and second electrode assemblies to provide electrical energy to tissue. The first electrode assembly includes an outer shaft defining a first electrode surface and the second electrode assembly includes an electrode body extending along and electrically isolated from an outer shaft and defining a U-shape in cross section.Type: GrantFiled: February 18, 2016Date of Patent: January 29, 2019Assignee: Medtronic Xomed, Inc.Inventors: John R. Prisco, Eric P. Detmers, Wenjeng Li, David J. Little, Patrick Richart, Jose Valdez
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Patent number: 10105521Abstract: An inflation device useful for inflating a balloon provided with a surgical instrument, such as a balloon sinus dilation instrument. The inflation device includes a syringe, a connector, and mechanical pressure indicator. The syringe includes a plunger slidably disposed within a barrel. The connector is configured to fluidly connect an outlet of the syringe with a surgical instrument balloon in establishing a closed inflation system between the syringe and an interior of the balloon. The pressure indicator is associated with the syringe and is configured to transition from a non-alert state to an alert state when a pressure of the inflation system has reached a predetermined level. In some embodiments, the inflation device is characterized by the absence of a pressure gauge.Type: GrantFiled: December 14, 2015Date of Patent: October 23, 2018Assignee: Medtronic Xomed, Inc.Inventors: Robert K. Vaccaro, Timothy M. Furst, Wenjeng Li, David J. Little, II, Ali Mowlai-Ashtiani, Dana A. Oliver
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Patent number: 9931079Abstract: A clamp for securing a terminal end of a wire to a surface electrode formed on a cylindrical tube includes a first semicylindrical element. A second semicylindrical element is configured to be attached to the first semicylindrical element to form a tubular clamp structure that is adapted to be clamped around the cylindrical tube. The tubular clamp structure includes an interior surface configured to securely hold a terminal end of a wire against a surface electrode formed on the cylindrical tube.Type: GrantFiled: January 4, 2012Date of Patent: April 3, 2018Assignee: Medtronic Xomed, Inc.Inventors: Wenjeng Li, Steven W. Bennett, David John Little, II, Maria Charles Vijay Stanislaus, David C. Hacker
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Publication number: 20180078161Abstract: A monitoring system may include a processor and display system for displaying results from the monitoring. A user may be in a sterile field away from the processor and display system and selected input devices. A controller may be physically connected to the monitoring system from the sterile field to allow the user to control the monitoring system.Type: ApplicationFiled: September 19, 2016Publication date: March 22, 2018Inventors: Matthew L. CANTWELL, Wenjeng Li, Kevin L. McFarlin, Anirudhan Narasimhan
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Patent number: 9918675Abstract: An apparatus for monitoring EMG signals of a patient's laryngeal muscles includes an endotracheal tube having an exterior surface. Conductive electrodes are formed on the endotracheal tube. The conductive electrodes are configured to receive the EMG signals from the laryngeal muscles when the endotracheal tube is placed in a trachea of the patient. At least wireless sensor is formed on the endotracheal tube, and is configured to wirelessly transmit information to a processing apparatus.Type: GrantFiled: May 19, 2015Date of Patent: March 20, 2018Assignee: Medtronic Xomed, Inc.Inventors: David C. Hacker, Maria Charles Vijay Stanislaus, Wenjeng Li, Dwayne S. Yamasaki, William C. Brunnett, Kevin L. McFarlin, James Britton Hissong, Robert K. Vaccaro, John M. Murphy, Carla A. Pagotto, Tino Schuler
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Patent number: 9913594Abstract: An apparatus for monitoring EMG signals of a patient's laryngeal muscles includes an endotracheal tube having a first cuff and a second cuff. Conductive ink electrodes are formed on an exterior surface of the first cuff. The conductive ink electrodes are configured to receive the EMG signals from the laryngeal muscles when the endotracheal tube is placed in a trachea of the patient. At least one conductor is coupled to the conductive ink electrodes and is configured to carry the EMG signals received by the conductive ink electrodes to a processing apparatus.Type: GrantFiled: March 14, 2013Date of Patent: March 13, 2018Assignee: Medtronic Xomed, Inc.Inventors: Wenjeng Li, Dwayne S. Yamasaki
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Patent number: 9907484Abstract: Concepts presented herein include an apparatus for monitoring EMG signals of a patient's laryngeal muscles. The apparatus includes an endobronchial tube having an exterior surface and two lumens for providing ventilation. Conductive ink electrodes are formed on the exterior surface of the endobronchial tube. The conductive ink electrodes are configured to receive the EMG signals from the laryngeal muscles when the endotracheal tube is placed in a trachea of the patient. At least one conductor is coupled to the conductive ink electrodes and is configured to carry the EMG signals received by the conductive ink electrodes to a processing apparatus.Type: GrantFiled: July 26, 2016Date of Patent: March 6, 2018Assignee: Medtronic Xomed, Inc.Inventor: Wenjeng Li
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Publication number: 20180042524Abstract: A stimulation electrode assembly configured to be positioned relative to a patient for an operative procedure is disclosed. An evoked stimulation response may be sensed by a sensor near a portion of a subject. The evoked response may be sensed by an electrode and determined with a monitoring system. The evoked response may additionally and/or alternatively be sensed with a motion sensor. A position sensor may be provided to measure or determine whether the sensor has moved during a procedure.Type: ApplicationFiled: August 11, 2016Publication date: February 15, 2018Inventors: Dana Michael Inman, Kevin L. McFarlin, Wenjeng Li
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Publication number: 20180015269Abstract: A method of limiting an inflation system pressure for dilating a region of a patient's nasal sinus passageways. The method includes grasping an inflation device. The inflation device includes a syringe including a plunger slidably disposed within a barrel, a connector for fluidly connecting an outlet of the syringe with a surgical instrument balloon, and a mechanical pressure indicator associated with the syringe, the mechanical pressure indicator including a housing and an indicator body disposed within the housing. The method also includes delivering the surgical instrument balloon to a patient's paranasal sinus target area, operating the plunger within the barrel of the syringe to deliver pressurized fluid to the surgical instrument balloon, and transitioning the indicator body to extend outside of the housing when a predetermined inflation pressure of the surgical instrument balloon is reached.Type: ApplicationFiled: September 26, 2017Publication date: January 18, 2018Applicant: Medtronic Xomed, Inc.Inventors: Wenjeng Li, David J. Little