Patents by Inventor Sieu Duong

Sieu Duong 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: 11925337
    Abstract: Apparatus and methods for sealing a puncture through tissue includes an introducer sheath sized for introduction into a puncture, cartridge sized for insertion into the introducer carrying a sealant, and a locking element for coupling the introducer sheath to the cartridge. When the cartridge is advanced into the introducer sheath, the locking element couples the introducer sheath to the cartridge such that subsequent retraction of the cartridge causes the introducer sheath to retract, thereby deploying the sealant from the cartridge within the puncture beyond the introducer sheath.
    Type: Grant
    Filed: December 23, 2019
    Date of Patent: March 12, 2024
    Assignee: ACCESS CLOSURE, INC.
    Inventors: Celso J. Bagaoisan, Sieu Duong, Fred H. Co, Juan Domingo
  • Patent number: 11707266
    Abstract: An apparatus for sealing a puncture includes a cartridge, a pusher member, a sealant, and a tamping device on a proximal end of the cartridge. During use, the cartridge, sealant, and pusher member are advanced over a positioning member and into the puncture by advancing a cartridge hub carrying the tamping device. When further distal advancement of the cartridge is limited, the cartridge hub is further advanced, activating the tamping device, and causing the pusher member to advance relative to the sealant to compress the sealant within the puncture.
    Type: Grant
    Filed: September 15, 2020
    Date of Patent: July 25, 2023
    Assignee: ACCESS CLOSURE, INC.
    Inventors: Celso J. Bagaoisan, Juan Domingo, Sieu Duong
  • Patent number: 11707265
    Abstract: An apparatus for sealing a puncture includes a positioning member including a proximal end, a distal end sized for insertion into a puncture, an expandable element on the distal end, and a tension indicator on the proximal end. The tension indicator includes a distal housing portion fixed relative to the proximal end, and a proximal housing portion or handle movable proximally relative to the distal housing portion. The handle is biased towards the distal housing portion such that, when sufficient tensile force is applied between the expandable element and the handle, the handle moves away from the distal housing portion. During use, the distal end is introduced through a puncture into a vessel, the expandable element is expanded, and the positioning member is partially withdrawn until the expanded element contacts a wall of the vessel and the handle separates from the distal housing portion, indicating that sufficient tension is applied.
    Type: Grant
    Filed: March 23, 2020
    Date of Patent: July 25, 2023
    Assignee: ACCESS CLOSURE, INC.
    Inventors: Celso J. Bagaoisan, Sieu Duong
  • Publication number: 20210169458
    Abstract: An apparatus for sealing a puncture includes a cartridge, a pusher member, a sealant, and a tamping device on a proximal end of the cartridge. During use, the cartridge, sealant, and pusher member are advanced over a positioning member and into the puncture by advancing a cartridge hub carrying the tamping device. When further distal advancement of the cartridge is limited, the cartridge hub is further advanced, activating the tamping device, and causing the pusher member to advance relative to the sealant to compress the sealant within the puncture.
    Type: Application
    Filed: September 15, 2020
    Publication date: June 10, 2021
    Applicant: ACCESSCLOSURE, INC.
    Inventors: Celso J. Bagaoisan, Juan Domingo, Sieu Duong
  • Publication number: 20200375582
    Abstract: An apparatus for sealing a puncture includes a positioning member including a proximal end, a distal end sized for insertion into a puncture, an expandable element on the distal end, and a tension indicator on the proximal end. The tension indicator includes a distal housing portion fixed relative to the proximal end, and a proximal housing portion or handle movable proximally relative to the distal housing portion. The handle is biased towards the distal housing portion such that, when sufficient tensile force is applied between the expandable element and the handle, the handle moves away from the distal housing portion. During use, the distal end is introduced through a puncture into a vessel, the expandable element is expanded, and the positioning member is partially withdrawn until the expanded element contacts a wall of the vessel and the handle separates from the distal housing portion, indicating that sufficient tension is applied.
    Type: Application
    Filed: March 23, 2020
    Publication date: December 3, 2020
    Inventors: Celso J. Bagaoisan, Sieu Duong
  • Patent number: 10806438
    Abstract: An apparatus for sealing a puncture includes a cartridge, a pusher member, a sealant, and a tamping device on a proximal end of the cartridge. During use, the cartridge, sealant, and pusher member are advanced over a positioning member and into the puncture by advancing a cartridge hub carrying the tamping device. When further distal advancement of the cartridge is limited, the cartridge hub is further advanced, activating the tamping device, and causing the pusher member to advance relative to the sealant to compress the sealant within the puncture.
    Type: Grant
    Filed: June 26, 2017
    Date of Patent: October 20, 2020
    Assignee: ACCESS CLOSURE, INC.
    Inventors: Celso J. Bagaoisan, Juan Domingo, Sieu Duong
  • Publication number: 20200129165
    Abstract: Apparatus and methods for sealing a puncture through tissue includes an introducer sheath sized for introduction into a puncture, cartridge sized for insertion into the introducer carrying a sealant, and a locking element for coupling the introducer sheath to the cartridge. When the cartridge is advanced into the introducer sheath, the locking element couples the introducer sheath to the cartridge such that subsequent retraction of the cartridge causes the introducer sheath to retract, thereby deploying the sealant from the cartridge within the puncture beyond the introducer sheath.
    Type: Application
    Filed: December 23, 2019
    Publication date: April 30, 2020
    Inventors: Celso J. Bagaoisan, Sieu Duong, Fred H. Co, Juan Domingo
  • Patent number: 10595838
    Abstract: An apparatus for sealing a puncture includes a positioning member including a proximal end, a distal end sized for insertion into a puncture, an expandable element on the distal end, and a tension indicator on the proximal end. The tension indicator includes a distal housing portion fixed relative to the proximal end, and a proximal housing portion or handle movable proximally relative to the distal housing portion. The handle is biased towards the distal housing portion such that, when sufficient tensile force is applied between the expandable element and the handle, the handle moves away from the distal housing portion. During use, the distal end is introduced through a puncture into a vessel, the expandable element is expanded, and the positioning member is partially withdrawn until the expanded element contacts a wall of the vessel and the handle separates from the distal housing portion, indicating that sufficient tension is applied.
    Type: Grant
    Filed: February 26, 2014
    Date of Patent: March 24, 2020
    Assignee: AccessClosure, Inc.
    Inventors: Celso J. Bagaoisan, Sieu Duong
  • Patent number: 10512455
    Abstract: Apparatus and methods for sealing a puncture through tissue includes an introducer sheath sized for introduction into a puncture, cartridge sized for insertion into the introducer carrying a sealant, and a locking element for coupling the introducer sheath to the cartridge. When the cartridge is advanced into the introducer sheath, the locking element couples the introducer sheath to the cartridge such that subsequent retraction of the cartridge causes the introducer sheath to retract, thereby deploying the sealant from the cartridge within the puncture beyond the introducer sheath.
    Type: Grant
    Filed: May 13, 2016
    Date of Patent: December 24, 2019
    Assignee: Access Closure, Inc.
    Inventors: Celso J Bagaoisan, Sieu Duong, Fred H. Co, Juan Domingo
  • Patent number: 10390847
    Abstract: An aspiration device can be used to aspirate an obstruction from a blood vessel. The aspiration device is configured to allow controlled one-handed aspiration yet maintain a syringe plunger feel of vacuum. The aspiration device also allows one-handed injection to empty the device when needed. Furthermore, mechanisms enable one-handed locking of a plunger position of the device to maintain vacuum when the user releases the device.
    Type: Grant
    Filed: June 20, 2017
    Date of Patent: August 27, 2019
    Assignee: Silk Road Medical, Inc.
    Inventors: Michi E. Garrison, Sieu Duong
  • Publication number: 20180008246
    Abstract: An apparatus for sealing a puncture includes a cartridge, a pusher member, a sealant, and a tamping device on a proximal end of the cartridge. During use, the cartridge, sealant, and pusher member are advanced over a positioning member and into the puncture by advancing a cartridge hub carrying the tamping device. When further distal advancement of the cartridge is limited, the cartridge hub is further advanced, activating the tamping device, and causing the pusher member to advance relative to the sealant to compress the sealant within the puncture.
    Type: Application
    Filed: June 26, 2017
    Publication date: January 11, 2018
    Applicant: ACCESSCLOSURE, INC.
    Inventors: Celso J. Bagaoisan, Juan Domingo, Sieu Duong
  • Publication number: 20180008294
    Abstract: An aspiration device can be used to aspirate an obstruction from a blood vessel. The aspiration device is configured to allow controlled one-handed aspiration yet maintain a syringe plunger feel of vacuum. The aspiration device also allows one-handed injection to empty the device when needed. Furthermore, mechanisms enable one-handed locking of a plunger position of the device to maintain vacuum when the user releases the device.
    Type: Application
    Filed: June 20, 2017
    Publication date: January 11, 2018
    Inventors: Michi E. Garrison, Sieu Duong
  • Patent number: 9713462
    Abstract: An apparatus for sealing a puncture includes a cartridge, a pusher member, a sealant, and a tamping device on a proximal end of the cartridge. During use, the cartridge, sealant, and pusher member are advanced over a positioning member and into the puncture by advancing a cartridge hub carrying the tamping device. When further distal advancement of the cartridge is limited, the cartridge hub is further advanced, activating the tamping device, and causing the pusher member to advance relative to the sealant to compress the sealant within the puncture.
    Type: Grant
    Filed: February 22, 2013
    Date of Patent: July 25, 2017
    Assignee: ACCESSCLOSURE, INC.
    Inventors: Celso J. Bagaoisan, Juan Domingo, Sieu Duong
  • Patent number: 9693789
    Abstract: An aspiration device can be used to aspirate an obstruction from a blood vessel. The aspiration device is configured to allow controlled one-handed aspiration yet maintain a syringe plunger feel of vacuum. The aspiration device also allows one-handed injection to empty the device when needed. Furthermore, mechanisms enable one-handed locking of a plunger position of the device to maintain vacuum when the user releases the device.
    Type: Grant
    Filed: March 21, 2014
    Date of Patent: July 4, 2017
    Assignee: Silk Road Medical, Inc.
    Inventors: Michi E. Garrison, Sieu Duong
  • Publication number: 20160324511
    Abstract: Apparatus and methods for sealing a puncture through tissue includes an introducer sheath sized for introduction into a puncture, cartridge sized for insertion into the introducer carrying a sealant, and a locking element for coupling the introducer sheath to the cartridge. When the cartridge is advanced into the introducer sheath, the locking element couples the introducer sheath to the cartridge such that subsequent retraction of the cartridge causes the introducer sheath to retract, thereby deploying the sealant from the cartridge within the puncture beyond the introducer sheath.
    Type: Application
    Filed: May 13, 2016
    Publication date: November 10, 2016
    Applicant: Access Closure, Inc.
    Inventors: Celso J. Bagaoisan, Sieu Duong, Fred H. Co, Juan Domingo
  • Patent number: 9364206
    Abstract: Apparatus and methods for sealing a puncture through tissue includes an introducer sheath sized for introduction into a puncture, cartridge sized for insertion into the introducer carrying a sealant, and a locking element for coupling the introducer sheath to the cartridge. When the cartridge is advanced into the introducer sheath, the locking element couples the introducer sheath to the cartridge such that subsequent retraction of the cartridge causes the introducer sheath to retract, thereby deploying the sealant from the cartridge within the puncture beyond the introducer sheath.
    Type: Grant
    Filed: October 3, 2011
    Date of Patent: June 14, 2016
    Assignee: Access Closure, Inc.
    Inventors: Celso J. Bagaoisan, Sieu Duong, Fred H. Co, Juan Domingo
  • Publication number: 20140296868
    Abstract: An aspiration device can be used to aspirate an obstruction from a blood vessel. The aspiration device is configured to allow controlled one-handed aspiration yet maintain a syringe plunger feel of vacuum. The aspiration device also allows one-handed injection to empty the device when needed. Furthermore, mechanisms enable one-handed locking of a plunger position of the device to maintain vacuum when the user releases the device.
    Type: Application
    Filed: March 21, 2014
    Publication date: October 2, 2014
    Applicant: SILK ROAD MEDICAL, INC.
    Inventors: Michi E. Garrison, Sieu Duong
  • Publication number: 20140180334
    Abstract: An apparatus for sealing a puncture includes a positioning member including a proximal end, a distal end sized for insertion into a puncture, an expandable element on the distal end, and a tension indicator on the proximal end. The tension indicator includes a distal housing portion fixed relative to the proximal end, and a proximal housing portion or handle movable proximally relative to the distal housing portion. The handle is biased towards the distal housing portion such that, when sufficient tensile force is applied between the expandable element and the handle, the handle moves away from the distal housing portion. During use, the distal end is introduced through a puncture into a vessel, the expandable element is expanded, and the positioning member is partially withdrawn until the expanded element contacts a wall of the vessel and the handle separates from the distal housing portion, indicating that sufficient tension is applied.
    Type: Application
    Filed: February 26, 2014
    Publication date: June 26, 2014
    Applicant: AccessClosure, Inc.
    Inventors: Celso J. Bagaoisan, Sieu Duong
  • Patent number: 8394122
    Abstract: An apparatus for sealing a puncture includes a cartridge, a pusher member, a sealant, and a tamping device on a proximal end of the cartridge. During use, the cartridge, sealant, and pusher member are advanced over a positioning member and into the puncture by advancing a cartridge hub carrying the tamping device. When further distal advancement of the cartridge is limited, the cartridge hub is further advanced, activating the tamping device, and causing the pusher member to advance relative to the sealant to compress the sealant within the puncture.
    Type: Grant
    Filed: November 12, 2009
    Date of Patent: March 12, 2013
    Assignee: AccessClosure, Inc.
    Inventors: Celso J. Bagaoisan, Juan Domingo, Sieu Duong
  • Publication number: 20120053621
    Abstract: Apparatus and methods for sealing a puncture through tissue includes an introducer sheath sized for introduction into a puncture, cartridge sized for insertion into the introducer carrying a sealant, and a locking element for coupling the introducer sheath to the cartridge. When the cartridge is advanced into the introducer sheath, the locking element couples the introducer sheath to the cartridge such that subsequent retraction of the cartridge causes the introducer sheath to retract, thereby deploying the sealant from the cartridge within the puncture beyond the introducer sheath.
    Type: Application
    Filed: October 3, 2011
    Publication date: March 1, 2012
    Applicant: ACCESSCLOSURE, INC.
    Inventors: Celso J. Bagaoisan, Sieu Duong, Fred H. Co, Juan Domingo