Patents by Inventor Eugene G. Chen

Eugene G. Chen 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: 10433850
    Abstract: A ligature delivery device includes a control member, an elongated shaft, and an end effector attached to the distal end of the elongated shaft. An activation mechanism provides an user-operable connection between the control member and the end effector. In several embodiments, the end effector includes a reverse grasping mechanism. Several embodiments of ligature devices are adapted to be deployed endoscopically and/or translumenally using the reverse-grasping delivery device.
    Type: Grant
    Filed: August 2, 2016
    Date of Patent: October 8, 2019
    Assignee: USGI Medical, Inc.
    Inventors: Richard C. Ewers, Christopher James Earley, Barton P. Bandy, Eugene G. Chen, Haio Fauser
  • Publication number: 20190224440
    Abstract: A system for treating a patient suffering from obstructive sleep apnea or snoring is diclsoed. The system includes an air flow generator configured to deliver an air flow at a positive therapeutic pressure during the treatment, and an expiratory valve with an open pressure connected air flow generator. The open pressure is dependent on the therapeutic pressure from the air flow generator. The expiratory valve further exerts a back pressure upon each exhalation from the patient sufficient to create a pneumatic splint in the patient's respiratory tract. The exhalation from the patient has a first half followed by a second half and the back pressure is varied such that during the start of the first half the back pressure is between 0 and 50% of a peak back pressure and increases to a peak back pressure in the second half.
    Type: Application
    Filed: March 14, 2019
    Publication date: July 25, 2019
    Inventors: Andrew H. Cragg, John Logan, Haim Nissimov, Richard Ewers, Mark Adler, Eugene G. Chen, John Edwin Trusheim, John Nolting, Stephen William Anderson, Kevin Chen
  • Patent number: 10307562
    Abstract: A device for treating a patient suffering from obstructive sleep apnea or snoring can include an expiratory valve connected to a manifold. The expiratory valve can include a body portion including a feedback port configured to be connected to an air flow generator. The expiratory valve can include a plunger at least partially disposed in the body portion. The expiratory valve can include a pressurizing chamber positioned between an end of the plunger and an end of the expiratory valve. The pressurizing chamber can be configured to receive air from the air flow generator through the feedback port.
    Type: Grant
    Filed: May 15, 2014
    Date of Patent: June 4, 2019
    Assignee: FRESCA Medical, Inc.
    Inventors: Andrew H. Cragg, John Logan, Haim Nissimov, Richard Christian Ewers, Mark Alan Adler, Eugene G. Chen, John Edwin Trusheim, John Eugene Nolting, Stephen William Anderson, Kevin Nai Hong Chen
  • Patent number: 10272226
    Abstract: A device for treating a patient suffering from obstructive sleep apnea or snoring can include an expiratory valve connected to a manifold. The expiratory valve can include a body portion including a feedback port configured to be connected to an air flow generator. The expiratory valve can include a plunger at least partially disposed in the body portion. The expiratory valve can include a pressurizing chamber positioned between an end of the plunger and an end of the expiratory valve. The pressurizing chamber can be configured to receive air from the air flow generator through the feedback port.
    Type: Grant
    Filed: May 15, 2014
    Date of Patent: April 30, 2019
    Assignee: FRESCA MEDICAL, INC.
    Inventors: Andrew H. Cragg, John Logan, Haim Nissimov, Richard Christian Ewers, Mark Alan Adler, Eugene G. Chen, John Edwin Trusheim, John Eugene Nolting, Stephen William Anderson, Kevin Nai Hong Chen
  • Publication number: 20160338705
    Abstract: A ligature delivery device includes a control member, an elongated shaft, and an end effector attached to the distal end of the elongated shaft. An activation mechanism provides an user-operable connection between the control member and the end effector. In several embodiments, the end effector includes a reverse grasping mechanism. Several embodiments of ligature devices are adapted to be deployed endoscopically and/or translumenally using the reverse-grasping delivery device.
    Type: Application
    Filed: August 2, 2016
    Publication date: November 24, 2016
    Inventors: Richard C. Ewers, Christopher James Earley, Barton P. Bandy, Eugene G. Chen, Haio Fauser
  • Patent number: 8906038
    Abstract: Devices and methods for forming and securing tissue folds and elongated invaginations in gastric tissue are used as a treatment for obesity. In several embodiments, a plurality of tissue folds is formed along the greater curvature of the stomach using laparoscopic tissue anchor deployment devices. Additional embodiments include various combinations of tissue folds, elongated invaginations, and other reconfigurations of stomach tissue using laparoscopic devices or laparoscopic devices in combination with endoscopic devices.
    Type: Grant
    Filed: February 23, 2011
    Date of Patent: December 9, 2014
    Assignee: USGI Medical, Inc.
    Inventors: Richard C. Ewers, Eugene G. Chen, Tracy D. Maahs, Stuart Moran, Cang C. Lam
  • Publication number: 20140246025
    Abstract: A device for treating a patient suffering from obstructive sleep apnea or snoring can include an expiratory valve connected to a manifold. The expiratory valve can include a body portion including a feedback port configured to be connected to an air flow generator. The expiratory valve can include a plunger at least partially disposed in the body portion. The expiratory valve can include a pressurizing chamber positioned between an end of the plunger and an end of the expiratory valve. The pressurizing chamber can be configured to receive air from the air flow generator through the feedback port.
    Type: Application
    Filed: May 15, 2014
    Publication date: September 4, 2014
    Applicant: Fresca Medical, Inc.
    Inventors: Andrew H. Cragg, John Logan, Haim Nissimov, Richard Ewers, Mark Adler, Eugene G. Chen, John Edwin Trusheim, John Nolting, Steve Anderson, Kevin Chen
  • Publication number: 20140246024
    Abstract: A device for treating a patient suffering from obstructive sleep apnea or snoring can include an expiratory valve connected to a manifold. The expiratory valve can include a body portion including a feedback port configured to be connected to an air flow generator. The expiratory valve can include a plunger at least partially disposed in the body portion. The expiratory valve can include a pressurizing chamber positioned between an end of the plunger and an end of the expiratory valve. The pressurizing chamber can be configured to receive air from the air flow generator through the feedback port.
    Type: Application
    Filed: May 15, 2014
    Publication date: September 4, 2014
    Applicant: Fresca Medical, Inc.
    Inventors: Andrew H. Cragg, John Logan, Haim Nissimov, Richard Ewers, Mark Adler, Eugene G. Chen, John Edwin Trusheim, John Nolting, Steve Anderson, Kevin Chen
  • Publication number: 20140214079
    Abstract: Methods for percutaneous hernia repair may include inserting a needle end of an anchor tool through a first tissue edge on a first side of a hernia defect opening. A first anchor is deployed with a first suture attached to the first anchor and running back through or along the anchor tool and outside of the patient's body. The needle end of the anchor tool is withdrawn from the first tissue edge. The first suture is separated from the anchor tool. The needle end of an anchor tool is inserted through a second tissue edge and a second anchor is deployed, with a second suture attached to the second anchor and running back through or along the anchor tool and outside of the patient's body. The sutures are tensioned and cinched or knotted.
    Type: Application
    Filed: January 31, 2013
    Publication date: July 31, 2014
    Inventors: Richard C. Ewers, Eugene G. Chen
  • Patent number: 8777965
    Abstract: Devices and methods for laparoscopically repairing a hernia are described. In some embodiments, a laparoscopic instrument is used to deploy one or more tissue anchor assemblies into the edges of the fascia tissue surrounding or adjacent to the hernia defect. The tissue anchor assemblies are used to cause the fascia tissue to be approximated to facilitate the repair procedure, to improve healing, and to reduce the incidence of recurrence.
    Type: Grant
    Filed: May 9, 2011
    Date of Patent: July 15, 2014
    Assignee: USGI Medical, Inc.
    Inventors: Eugene G. Chen, Tracy D. Maahs, Richard C. Ewers, Lee L. Swanstrom
  • Patent number: 8663236
    Abstract: Transgastric abdominal access methods and apparatus are described herein. A shape-lockable elongate body can be advanced endoluminally in a flexible state into the stomach, where an opening is created through the stomach wall. The opening can be created endoluminally or by incising instruments placed through the abdominal wall. The elongate body can be transitioned to a rigid state prior to, during, or after advancement into the patient and is passed through the opening into the peritoneal cavity. A dilation balloon can be positioned simultaneously within the elongate body and within the tissue opening such that the elongate body can be advanced through the tissue opening. A flexible needle catheter can also be delivered through the elongate body or an endoscope to provide for insufflation prior to cutting or piercing through the stomach wall. Also, tissue closure devices and methods to close the opening created through the stomach wall.
    Type: Grant
    Filed: September 28, 2005
    Date of Patent: March 4, 2014
    Assignee: USGI Medical Inc.
    Inventors: Eugene G. Chen, Vahid C. Saadat, Rebecca S. Inderbitzen, Lee L. Swanstrom
  • Publication number: 20140025092
    Abstract: A ligature delivery device includes a control member, an elongated shaft, and an end effector attached to the distal end of the elongated shaft. An activation mechanism provides an user-operable connection between the control member and the end effector. In several embodiments, the end effector includes a reverse grasping mechanism. Several embodiments of ligature devices are adapted to be deployed endoscopically and/or translumenally using the reverse-grasping delivery device.
    Type: Application
    Filed: August 20, 2013
    Publication date: January 23, 2014
    Applicant: USGI MEDICAL, INC.
    Inventors: Richard C. Ewers, Christopher James Earley, Barton P. Bandy, Eugene G. Chen, Haio Fauser
  • Patent number: 8512362
    Abstract: A ligature delivery device includes a control member, an elongated shaft, and an end effector attached to the distal end of the elongated shaft. An activation mechanism provides an user-operable connection between the control member and the end effector. In several embodiments, the end effector includes a reverse grasping mechanism. Several embodiments of ligature devices are adapted to be deployed endoscopically and/or translumenally using the reverse-grasping delivery device.
    Type: Grant
    Filed: November 5, 2008
    Date of Patent: August 20, 2013
    Assignee: USGI Medical Inc.
    Inventors: Richard C. Ewers, Christopher James Earley, Barton P. Bandy, Eugene G. Chen, Haio Fauser
  • Patent number: D741474
    Type: Grant
    Filed: August 22, 2013
    Date of Patent: October 20, 2015
    Assignee: Fresca Medical, Inc.
    Inventors: Eugene G. Chen, Alan M. Gordon, Samuel C. Wu
  • Patent number: D742501
    Type: Grant
    Filed: July 18, 2013
    Date of Patent: November 3, 2015
    Assignee: Fresca Medical, Inc.
    Inventors: Eugene G. Chen, Alan M. Gordon, Samuel C. Wu
  • Patent number: D742502
    Type: Grant
    Filed: July 18, 2013
    Date of Patent: November 3, 2015
    Inventors: Eugene G. Chen, Alan M. Gordon, Samuel C. Wu
  • Patent number: D743021
    Type: Grant
    Filed: July 18, 2013
    Date of Patent: November 10, 2015
    Assignee: Fresca Medical, Inc.
    Inventors: Eugene G. Chen, Alan M. Gordon, Samuel C. Wu
  • Patent number: D745139
    Type: Grant
    Filed: August 16, 2013
    Date of Patent: December 8, 2015
    Assignee: Fresca Medical, Inc.
    Inventors: Eugene G. Chen, Alan M. Gordon, Samuel C. Wu
  • Patent number: D749205
    Type: Grant
    Filed: March 8, 2013
    Date of Patent: February 9, 2016
    Assignee: Fresca Medical, Inc.
    Inventors: Eugene G. Chen, Alan M. Gordon, Samuel C. Wu
  • Patent number: D759230
    Type: Grant
    Filed: May 30, 2014
    Date of Patent: June 14, 2016
    Assignee: Fresca Medical, Inc.
    Inventors: Alan M. Gordon, Samuel C. Wu, Jonny Yuan, Eugene G. Chen, Stephanie Mirian Lewis