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: 20170360371Abstract: 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: August 31, 2017Publication date: December 21, 2017Applicant: 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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Publication number: 20170347958Abstract: 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: August 22, 2017Publication date: December 7, 2017Applicant: 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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Publication number: 20170319853Abstract: Endovascular nerve monitoring devices and associated systems and methods are disclosed herein. A nerve monitoring system configured in accordance with a particular embodiment of the present technology can include a shaft having a proximal portion and a distal portion and a nerve monitoring assembly at the distal portion. The shaft is configured to locate the distal portion intravascularly at a treatment site. The nerve monitoring assembly can include a bipolar stimulation electrode array and a bipolar recording electrode array disposed distal to the bipolar stimulation electrode assembly.Type: ApplicationFiled: May 12, 2017Publication date: November 9, 2017Inventors: Dwayne S. Yamasaki, Bryan Courtney, Wenjeng Li, Kevin Mauch, Kevin McFarlin, Gabriel Brennan, David Gannon, David Hobbins, Brian Kelly, Stephen Nash, Matthew Bonner, Sean Ward
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Publication number: 20170304617Abstract: A stimulation probe includes a proximal end connector and a flexible wire coupled to the end connector. A handle is coupled to the wire and a needle extends from the handle and terminates at a conductive tip.Type: ApplicationFiled: July 11, 2017Publication date: October 26, 2017Inventors: David C. Hacker, Wenjeng Li, Kevin Lee McFarlin
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Patent number: 9775530Abstract: An apparatus for monitoring a nerve includes a Foley type catheter having an exterior surface, and first and second pairs of ring electrodes formed on the exterior surface of the Foley catheter. Each of the first and second pairs of ring electrodes is configured to perform at least one of stimulating the nerve and recording nerve activity.Type: GrantFiled: November 3, 2014Date of Patent: October 3, 2017Assignee: Medtronic Xomed, Inc.Inventors: Wenjeng Li, Dwayne Yamasaki, Marc Zimmermann, Kevin Mauch
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Patent number: 9770577Abstract: An inflation device for selectively inflating a balloon of a surgical instrument including a syringe, a connector, a mechanical pressure indicator, and a relief port. The syringe includes a plunger slidably disposed within a barrel. The connector fluidly connects an outlet of the syringe with a surgical instrument balloon to establish a closed inflation system between the syringe and an interior of the balloon. The mechanical pressure indicator is associated with the syringe and configured to transition from a non-alert state to an alert state when a pressure of the inflation system has reached a predetermined level. The relief port is associated with the mechanical pressure indicator and configured to relieve a pressure of the inflation system when the system at least reaches the predetermined level.Type: GrantFiled: September 15, 2014Date of Patent: September 26, 2017Assignee: Medtronic Xomed, Inc.Inventors: Wenjeng Li, David J. Little
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Patent number: 9763624Abstract: An apparatus for monitoring EMG signals of a patient's laryngeal muscles includes an endotracheal tube having an exterior surface and a first location configured to be positioned at the patient's vocal folds. A first electrode is formed on the exterior surface of the endotracheal tube substantially below the first location to receive EMG signals primarily from below the vocal folds. A second electrode is formed on the exterior surface of the endotracheal tube substantially above the first location to receive EMG signals primarily from above the vocal folds. The first and second electrodes are configured to receive the EMG signals from the laryngeal muscles when the endotracheal tube is placed in a trachea of the patient.Type: GrantFiled: February 7, 2014Date of Patent: September 19, 2017Assignee: Medtronic Xomed, Inc.Inventors: Maria Charles Vijay Stanislaus, David C. Hacker, Wenjeng Li, David J. Little, Carla A. Pagotto, Dwayne S. Yamasaki
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Patent number: 9579503Abstract: Concepts presented herein relate to an interface module that can be electrically coupled to an electrical stimulation generator, a radio frequency generator and an instrument. A selection module is coupled to the interface module and operates in a first mode to deliver electrical stimulation signals from the electrical stimulation generator to the instrument and in a second mode to deliver radio frequency signals from the radio frequency generator to the instrument.Type: GrantFiled: October 5, 2011Date of Patent: February 28, 2017Assignee: Medtronic Xomed, Inc.Inventors: Jeremy Michael McKinney, Wenjeng Li, Kevin Lee McFarlin
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Publication number: 20160345905Abstract: 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: ApplicationFiled: July 26, 2016Publication date: December 1, 2016Applicant: MEDTRONIC XOMED, INC.Inventor: WENJENG LI
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Publication number: 20160287325Abstract: Endovascular nerve monitoring devices and associated systems and methods are disclosed herein. A nerve monitoring system configured in accordance with a particular embodiment of the present technology can include a shaft having a proximal portion and a distal portion and a nerve monitoring assembly at the distal portion. The shaft is configured to locate the distal portion intravascularly at a treatment site. The nerve monitoring assembly can include a bipolar stimulation electrode array and a bipolar recording electrode array disposed distal to the bipolar stimulation electrode assembly.Type: ApplicationFiled: March 30, 2016Publication date: October 6, 2016Inventors: Dwayne S. Yamasaki, Bryan Courtney, Wenjeng Li, Kevin Mauch, Kevin McFarlin, Gabriel Brennan, David Gannon, David Hobbins, Brian Kelly, Stephen Nash, Matthew Bonner, Sean Ward
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Publication number: 20160235469Abstract: A bipolar electrosurgical device including an outer shaft, an inner shaft, first and second electrode surfaces, and an irrigation channel. The outer shaft defines a lumen, a proximal end and a distal end forming a cutting window. The inner shaft is rotatably disposed within the outer shaft, and defines a distal portion forming a cutting tip. The cutting tip and the cutting window combine to define a cutting implement. The first and second electrode surfaces are electrically isolated, and are formed at the cutting implement. The irrigation channel extends parallel to the outer shaft, and terminates in at least one outlet port. The outlet port is proximally spaced from the cutting window and is located radially outside of the outer shaft. Fluid (e.g., saline) is emitted at the exterior surface of the device near the cutting window and is readily present for interacting with the electrode surfaces.Type: ApplicationFiled: February 18, 2016Publication date: August 18, 2016Applicant: 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: 20160235468Abstract: 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: February 18, 2016Publication date: August 18, 2016Applicant: 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: 20160235474Abstract: 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: February 18, 2016Publication date: August 18, 2016Applicant: 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: 9398865Abstract: 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: June 23, 2015Date of Patent: July 26, 2016Assignee: Medtronic Xomed, Inc.Inventor: Wenjeng Li
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Patent number: 9327123Abstract: Endovascular nerve monitoring devices and associated systems and methods are disclosed herein. A nerve monitoring system configured in accordance with a particular embodiment of the present technology can include a shaft having a proximal portion and a distal portion and a nerve monitoring assembly at the distal portion. The shaft is configured to locate the distal portion intravascularly at a treatment site. The nerve monitoring assembly can include a bipolar stimulation electrode array and a bipolar recording electrode array disposed distal to the bipolar stimulation electrode assembly.Type: GrantFiled: November 6, 2012Date of Patent: May 3, 2016Assignee: Medtronic Ardian Luxembourg S.a.r.l.Inventors: Dwayne S. Yamasaki, Bryan Courtney, Wenjeng Li, Kevin Mauch, Kevin McFarlin, Gabriel Brennan, David Gannon, David Hobbins, Brian Kelly, Stephen Nash, Matthew Bonner, Sean Ward
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Publication number: 20160106960Abstract: 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: ApplicationFiled: December 14, 2015Publication date: April 21, 2016Applicant: 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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Publication number: 20160074639Abstract: An inflation device for selectively inflating a balloon of a surgical instrument including a syringe, a connector, a mechanical pressure indicator, and a relief port. The syringe includes a plunger slidably disposed within a barrel. The connector fluidly connects an outlet of the syringe with a surgical instrument balloon to establish a closed inflation system between the syringe and an interior of the balloon. The mechanical pressure indicator is associated with the syringe and configured to transition from a non-alert state to an alert state when a pressure of the inflation system has reached a predetermined level. The relief port is associated with the mechanical pressure indicator and configured to relieve a pressure of the inflation system when the system at least reaches the predetermined level.Type: ApplicationFiled: September 15, 2014Publication date: March 17, 2016Inventors: Wenjeng Li, David J. Little
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Patent number: 9238125Abstract: 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: January 31, 2013Date of Patent: January 19, 2016Assignee: 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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Publication number: 20150282732Abstract: 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: ApplicationFiled: June 23, 2015Publication date: October 8, 2015Inventor: Wenjeng Li
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Publication number: 20150250423Abstract: 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: May 19, 2015Publication date: September 10, 2015Inventors: 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