Patents by Inventor Wai N. Chin

Wai N. Chin 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: 10492778
    Abstract: A medical fastening device is provided. The fastening device may include a first arcuate needle adapted to rotate about a first axis in a first direction, entering through a first section of one of a tissue and a prosthetic material, and exiting through a second section of one of the tissue and the prosthetic material; a second arcuate needle adapted to rotate about a second axis in a second direction, entering through the second section of one of the tissue and the prosthetic material, and exiting through the first section of one of the tissue and the prosthetic material; and a drive mechanism operatively coupled to each of the first and second arcuate needles and configured to engage each of the first and second arcuate needles between a retracted position and an extended position.
    Type: Grant
    Filed: September 8, 2016
    Date of Patent: December 3, 2019
    Assignee: Surgimatix, Inc.
    Inventors: Wai N. Chin, Gary M. Kobylewski, Jafar S. Hasan
  • Patent number: 10433832
    Abstract: A suturing device is provided. The suturing device may include at least one suturing needle, a drive mechanism and an impulse mechanism. The drive mechanism may be operatively coupled to the suturing needle and configured to advance the suturing needle from a retracted position to an extended position during engagement, and retract the suturing needle from the extended position to the retracted position during disengagement. The impulse mechanism may be operatively coupled to the drive mechanism and configured to accumulate energy during engagement of the suturing needle, and instantaneously release the accumulated energy through the drive mechanism during disengagement.
    Type: Grant
    Filed: December 30, 2015
    Date of Patent: October 8, 2019
    Assignee: Surgimatix, Inc.
    Inventors: Jafar S. Hasan, Wai N. Chin, James Orrico, Adam A. Saban, Gary M. Kobylewski
  • Patent number: 10398432
    Abstract: A suturing device provided. The suturing device may include at least a firing aperture, a drive mechanism and an autoloading mechanism. The firing aperture may include at least one needle rotatably disposed therein configured to engage a suture for deployment. The drive mechanism may be operatively coupled to the needle and configured to advance the needle from a retracted position to an extended position during engagement, and retract the needle from the extended position to the retracted position during disengagement. The autoloading mechanism may be operatively coupled to the drive mechanism and configured to slidably retrieve and position a suture to be deployed over the firing aperture during disengagement of the drive mechanism.
    Type: Grant
    Filed: February 9, 2017
    Date of Patent: September 3, 2019
    Assignee: Surgimatix, Inc.
    Inventors: Wai N. Chin, James Orrico, Gary M. Kobylewski, Jafar S. Hasan
  • Patent number: 10231728
    Abstract: A tissue fastening device is provided. The tissue fastening device may include an elongate member having fastener guides extending between a working end and a control end and a firing aperture disposed on the working end, an arcuate needle disposed within the firing aperture of the working end and rotatable between a retracted position and an extended position, the arcuate needle including an antegrade recess configured to engagably receive an end of a fastener during advancement of the arcuate needle, and a drive mechanism operatively coupled to the arcuate needle and configured to, upon actuation, advance the arcuate needle in a forward rotation to engage the end of the fastener to be installed and push the end of the fastener through one of a tissue and a prosthetic material into a helical configuration.
    Type: Grant
    Filed: September 12, 2016
    Date of Patent: March 19, 2019
    Assignee: Surgimatix, Inc.
    Inventors: Wai N. Chin, Gary M. Kobylewski, Jafar S. Hasan
  • Patent number: 9936942
    Abstract: A suturing device is provided. The suturing device may include at least one needle configured to engage a suture for deployment, at least one release mechanism coupled to the needle configured to release an engaged suture upon deployment, and a drive mechanism operatively coupled to the needle and configured to advance the needle from a retracted position to an extended position during engagement, and retract the needle from the extended position to the retracted position during disengagement.
    Type: Grant
    Filed: July 13, 2015
    Date of Patent: April 10, 2018
    Assignee: Surgimatix, Inc.
    Inventors: Wai N. Chin, Adam Saban, James Orrico, Gary M. Kobylewski, Jafar S. Hasan
  • Patent number: 9867609
    Abstract: A suturing device is provided. The suturing device may include a firing aperture having at least one needle and a stripper plate, the needle being rotatable relative to the stripper plate and the firing aperture, and configured to engage a suture for deployment; and a drive mechanism operatively coupled to the needle and configured to advance the needle from a retracted position to an extended position during engagement, and retract the needle from the extended position to the retracted position during disengagement.
    Type: Grant
    Filed: November 12, 2015
    Date of Patent: January 16, 2018
    Assignee: Surgimatix, Inc.
    Inventors: Wai N. Chin, James Orrico, Adam Saban, Gary M. Kobylewski, Jafar S. Hasan
  • Publication number: 20170290581
    Abstract: A suturing device is provided. The suturing device may include at least one suturing needle, a drive mechanism and an impulse mechanism. The drive mechanism may be operatively coupled to the suturing needle and configured to advance the suturing needle from a retracted position to an extended position during engagement, and retract the suturing needle from the extended position to the retracted position during disengagement. The impulse mechanism may be operatively coupled to the drive mechanism and configured to accumulate energy during engagement of the suturing needle, and instantaneously release the accumulated energy through the drive mechanism during disengagement.
    Type: Application
    Filed: December 30, 2015
    Publication date: October 12, 2017
    Inventors: Jafar S. Hasan, Wai N. Chin, James Orrico, Adam A. Saban, Gary M. Kobylewski
  • Publication number: 20170150966
    Abstract: A suturing device provided. The suturing device may include at least a firing aperture, a drive mechanism and an autoloading mechanism. The firing aperture may include at least one needle rotatably disposed therein configured to engage a suture for deployment. The drive mechanism may be operatively coupled to the needle and configured to advance the needle from a retracted position to an extended position during engagement, and retract the needle from the extended position to the retracted position during disengagement. The autoloading mechanism may be operatively coupled to the drive mechanism and configured to slidably retrieve and position a suture to be deployed over the firing aperture during disengagement of the drive mechanism.
    Type: Application
    Filed: February 9, 2017
    Publication date: June 1, 2017
    Applicant: Surgimatix, Inc.
    Inventors: Wai N. Chin, James Orrico, Gary M. Kobylewski, Jafar S. Hasan
  • Patent number: 9603592
    Abstract: A suturing device provided. The suturing device may include at least a firing aperture, a drive mechanism and an autoloading mechanism. The firing aperture may include at least one needle rotatably disposed therein configured to engage a suture for deployment. The drive mechanism may be operatively coupled to the needle and configured to advance the needle from a retracted position to an extended position during engagement, and retract the needle from the extended position to the retracted position during disengagement. The autoloading mechanism may be operatively coupled to the drive mechanism and configured to slidably retrieve and position a suture to be deployed over the firing aperture during disengagement of the drive mechanism.
    Type: Grant
    Filed: September 26, 2014
    Date of Patent: March 28, 2017
    Assignee: Surgimatix, Inc.
    Inventors: Wai N. Chin, James Orrico, Gary M. Kobylewski, Jafar S. Hasan
  • Publication number: 20170007234
    Abstract: A tissue fastening device is provided. The tissue fastening device may include an elongate member having fastener guides extending between a working end and a control end and a firing aperture disposed on the working end, an arcuate needle disposed within the firing aperture of the working end and rotatable between a retracted position and an extended position, the arcuate needle including an antegrade recess configured to engagably receive an end of a fastener during advancement of the arcuate needle, and a drive mechanism operatively coupled to the arcuate needle and configured to, upon actuation, advance the arcuate needle in a forward rotation to engage the end of the fastener to be installed and push the end of the fastener through one of a tissue and a prosthetic material into a helical configuration.
    Type: Application
    Filed: September 12, 2016
    Publication date: January 12, 2017
    Applicant: Surgimatix, Inc.
    Inventors: Wai N. Chin, Gary M. Kobylewski, Jafar S. Hasan
  • Publication number: 20160374663
    Abstract: A medical fastening device is provided. The fastening device may include a first arcuate needle adapted to rotate about a first axis in a first direction, entering through a first section of one of a tissue and a prosthetic material, and exiting through a second section of one of the tissue and the prosthetic material; a second arcuate needle adapted to rotate about a second axis in a second direction, entering through the second section of one of the tissue and the prosthetic material, and exiting through the first section of one of the tissue and the prosthetic material; and a drive mechanism operatively coupled to each of the first and second arcuate needles and configured to engage each of the first and second arcuate needles between a retracted position and an extended position.
    Type: Application
    Filed: September 8, 2016
    Publication date: December 29, 2016
    Applicant: Surgimatix, Inc.
    Inventors: Wai N. Chin, Gary M. Kobylewski, Jafar S. Hasan
  • Patent number: 9439646
    Abstract: A medical fastening device is provided. The fastening device may include a first arcuate needle adapted to rotate about a first axis in a first direction, entering through a first section of one of a tissue and a prosthetic material, and exiting through a second section of one of the tissue and the prosthetic material; a second arcuate needle adapted to rotate about a second axis in a second direction, entering through the second section of one of the tissue and the prosthetic material, and exiting through the first section of one of the tissue and the prosthetic material; and a drive mechanism operatively coupled to each of the first and second arcuate needles and configured to engage each of the first and second arcuate needles between a retracted position and an extended position.
    Type: Grant
    Filed: February 14, 2014
    Date of Patent: September 13, 2016
    Assignee: Surgimatix, Inc.
    Inventors: Wai N. Chin, Gary M. Kobylewski, Jafar S. Hasan
  • Publication number: 20160089134
    Abstract: A suturing device is provided. The suturing device may include a firing aperture having at least one needle and a stripper plate, the needle being rotatable relative to the stripper plate and the firing aperture, and configured to engage a suture for deployment; and a drive mechanism operatively coupled to the needle and configured to advance the needle from a retracted position to an extended position during engagement, and retract the needle from the extended position to the retracted position during disengagement.
    Type: Application
    Filed: November 12, 2015
    Publication date: March 31, 2016
    Inventors: Wai N. Chin, James Orrico, Adam Saban, Gary M. Kobylewski, Jafar S. Hasan
  • Publication number: 20150351750
    Abstract: A suturing device is provided. The suturing device may include at least one needle configured to engage a suture for deployment, at least one release mechanism coupled to the needle configured to release an engaged suture upon deployment, and a drive mechanism operatively coupled to the needle and configured to advance the needle from a retracted position to an extended position during engagement, and retract the needle from the extended position to the retracted position during disengagement.
    Type: Application
    Filed: July 13, 2015
    Publication date: December 10, 2015
    Inventors: Wai N. Chin, Adam Saban, James Orrico, Gary M. Kobylewski, Jafar S. Hasan
  • Publication number: 20150088167
    Abstract: A suturing device provided. The suturing device may include at least a firing aperture, a drive mechanism and an autoloading mechanism. The firing aperture may include at least one needle rotatably disposed therein configured to engage a suture for deployment. The drive mechanism may be operatively coupled to the needle and configured to advance the needle from a retracted position to an extended position during engagement, and retract the needle from the extended position to the retracted position during disengagement. The autoloading mechanism may be operatively coupled to the drive mechanism and configured to slidably retrieve and position a suture to be deployed over the firing aperture during disengagement of the drive mechanism.
    Type: Application
    Filed: September 26, 2014
    Publication date: March 26, 2015
    Inventors: Wai N. Chin, James Orrico, Gary M. Kobylewski, Jafar S. Hasan
  • Publication number: 20140236193
    Abstract: A medical fastening device is provided. The fastening device may include a first arcuate needle adapted to rotate about a first axis in a first direction, entering through a first section of one of a tissue and a prosthetic material, and exiting through a second section of one of the tissue and the prosthetic material; a second arcuate needle adapted to rotate about a second axis in a second direction, entering through the second section of one of the tissue and the prosthetic material, and exiting through the first section of one of the tissue and the prosthetic material; and a drive mechanism operatively coupled to each of the first and second arcuate needles and configured to engage each of the first and second arcuate needles between a retracted position and an extended position.
    Type: Application
    Filed: February 14, 2014
    Publication date: August 21, 2014
    Applicant: Surgimatix, Inc.
    Inventors: Wai N. Chin, Gary M. Kobylewski, Jafar S. Hasan
  • Patent number: 8323262
    Abstract: Certain aspects of the invention relate to an applicator, and methods of use thereof, which can house multiple component formulations in separate material receptacles, which can then be easily reconstituted at time of use without any assembly by the user. A device of the invention can be used for, but is not limited to, applying hydrogel formulations to dura mater, abdominal tissue in hernia repair, tissues near the spine, lung tissue, intestinal tissue, and any of the internal tissues. A device of the invention can be configured to apply a spray or a stream of liquid formulation onto a surface to be treated. A device of the invention can be configured to deliver the formulation through an endoscope or laparoscope.
    Type: Grant
    Filed: July 8, 2009
    Date of Patent: December 4, 2012
    Assignee: HyperBranch Medical Technology, Inc.
    Inventors: Keith R. D'Alessio, Jeffrey G. Clark, Roy R. B. Attride, Wai N. Chin, Robert M. Colonna, Tomas Matusaitis, Todd J. Taylor, Christopher R. Yahnker
  • Patent number: 8066167
    Abstract: Circular stapling instruments for cutting and applying one or more surgical staples to tissue are disclosed. The instruments include various forms of anvil locking systems designed to selectively prevent the anvil from moving axially relative to the stapling head of the stapling instrument. One embodiment employs an elongated gear rack that is selectively engagable with locking gears to prevent axial motion of the elongated gear rack and an adjustment shaft used to axially position the anvil. Other embodiments employ a gear assembly that cooperates with the elongated gear rack. A locking member is movably supported by a handle assembly that houses the gear assembly and elongated gear rack. The locking member is configured for selective meshing engagement with the gear assembly to ultimately prevent axial movement of the gear rack and adjustment shaft.
    Type: Grant
    Filed: March 23, 2009
    Date of Patent: November 29, 2011
    Assignee: Ethicon Endo-Surgery, Inc.
    Inventors: John P. Measamer, Mark Tsonton, Nicholas G. Molitor, Barry T. Jamison, Scott B. Killinger, Randall S. Koplin, Wai N. Chin
  • Publication number: 20100237132
    Abstract: Circular stapling instruments for cutting and applying one or more surgical staples to tissue are disclosed. The instruments include various forms of anvil locking systems designed to selectively prevent the anvil from moving axially relative to the stapling head of the stapling instrument. One embodiment employs an elongated gear rack that is selectively engagable with locking gears to prevent axial motion of the elongated gear rack and an adjustment shaft used to axially position the anvil. Other embodiments employ a gear assembly that cooperates with the elongated gear rack. A locking member is movably supported by a handle assembly that houses the gear assembly and elongated gear rack. The locking member is configured for selective meshing engagement with the gear assembly to ultimately prevent axial movement of the gear rack and adjustment shaft.
    Type: Application
    Filed: March 23, 2009
    Publication date: September 23, 2010
    Applicant: Ethicon Endo-Surgery, Inc.
    Inventors: John P. Measamer, Mark Tsonton, Nicholas G. Molitor, Barry T. Jamison, Scott B. Killinger, Randall S. Koplin, Wai N. Chin
  • Publication number: 20100010473
    Abstract: Certain aspects of the invention relate to an applicator, and methods of use thereof, which can house multiple component formulations in separate material receptacles, which can then be easily reconstituted at time of use without any assembly by the user. A device of the invention can be used for, but is not limited to, applying hydrogel formulations to dura mater, abdominal tissue in hernia repair, tissues near the spine, lung tissue, intestinal tissue, and any of the internal tissues. A device of the invention can be configured to apply a spray or a stream of liquid formulation onto a surface to be treated. A device of the invention can be configured to deliver the formulation through an endoscope or laparoscope.
    Type: Application
    Filed: July 8, 2009
    Publication date: January 14, 2010
    Applicant: HyperBranch Medical Technology, Inc.
    Inventors: Keith R. D'Alessio, Jeffrey G. Clark, Roy R.B. Attride, Wai N. Chin, Robert M. Colonna, Tomas Matusaitis, Todd J. Taylor, Christopher R. Yahnker