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).
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Patent number: 10492778Abstract: 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: GrantFiled: September 8, 2016Date of Patent: December 3, 2019Assignee: Surgimatix, Inc.Inventors: Wai N. Chin, Gary M. Kobylewski, Jafar S. Hasan
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Patent number: 10433832Abstract: 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: GrantFiled: December 30, 2015Date of Patent: October 8, 2019Assignee: Surgimatix, Inc.Inventors: Jafar S. Hasan, Wai N. Chin, James Orrico, Adam A. Saban, Gary M. Kobylewski
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Patent number: 10398432Abstract: 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: GrantFiled: February 9, 2017Date of Patent: September 3, 2019Assignee: Surgimatix, Inc.Inventors: Wai N. Chin, James Orrico, Gary M. Kobylewski, Jafar S. Hasan
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Patent number: 10231728Abstract: 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: GrantFiled: September 12, 2016Date of Patent: March 19, 2019Assignee: Surgimatix, Inc.Inventors: Wai N. Chin, Gary M. Kobylewski, Jafar S. Hasan
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Patent number: 9936942Abstract: 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: GrantFiled: July 13, 2015Date of Patent: April 10, 2018Assignee: Surgimatix, Inc.Inventors: Wai N. Chin, Adam Saban, James Orrico, Gary M. Kobylewski, Jafar S. Hasan
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Patent number: 9867609Abstract: 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: GrantFiled: November 12, 2015Date of Patent: January 16, 2018Assignee: Surgimatix, Inc.Inventors: Wai N. Chin, James Orrico, Adam Saban, Gary M. Kobylewski, Jafar S. Hasan
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Publication number: 20170290581Abstract: 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: ApplicationFiled: December 30, 2015Publication date: October 12, 2017Inventors: Jafar S. Hasan, Wai N. Chin, James Orrico, Adam A. Saban, Gary M. Kobylewski
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Publication number: 20170150966Abstract: 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: ApplicationFiled: February 9, 2017Publication date: June 1, 2017Applicant: Surgimatix, Inc.Inventors: Wai N. Chin, James Orrico, Gary M. Kobylewski, Jafar S. Hasan
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Patent number: 9603592Abstract: 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: GrantFiled: September 26, 2014Date of Patent: March 28, 2017Assignee: Surgimatix, Inc.Inventors: Wai N. Chin, James Orrico, Gary M. Kobylewski, Jafar S. Hasan
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Publication number: 20170007234Abstract: 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: ApplicationFiled: September 12, 2016Publication date: January 12, 2017Applicant: Surgimatix, Inc.Inventors: Wai N. Chin, Gary M. Kobylewski, Jafar S. Hasan
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Publication number: 20160374663Abstract: 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: ApplicationFiled: September 8, 2016Publication date: December 29, 2016Applicant: Surgimatix, Inc.Inventors: Wai N. Chin, Gary M. Kobylewski, Jafar S. Hasan
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Patent number: 9439646Abstract: 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: GrantFiled: February 14, 2014Date of Patent: September 13, 2016Assignee: Surgimatix, Inc.Inventors: Wai N. Chin, Gary M. Kobylewski, Jafar S. Hasan
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Publication number: 20160089134Abstract: 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: ApplicationFiled: November 12, 2015Publication date: March 31, 2016Inventors: Wai N. Chin, James Orrico, Adam Saban, Gary M. Kobylewski, Jafar S. Hasan
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Publication number: 20150351750Abstract: 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: ApplicationFiled: July 13, 2015Publication date: December 10, 2015Inventors: Wai N. Chin, Adam Saban, James Orrico, Gary M. Kobylewski, Jafar S. Hasan
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Publication number: 20150088167Abstract: 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: ApplicationFiled: September 26, 2014Publication date: March 26, 2015Inventors: Wai N. Chin, James Orrico, Gary M. Kobylewski, Jafar S. Hasan
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Publication number: 20140236193Abstract: 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: ApplicationFiled: February 14, 2014Publication date: August 21, 2014Applicant: Surgimatix, Inc.Inventors: Wai N. Chin, Gary M. Kobylewski, Jafar S. Hasan
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Patent number: 8323262Abstract: 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: GrantFiled: July 8, 2009Date of Patent: December 4, 2012Assignee: 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
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Patent number: 8066167Abstract: 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: GrantFiled: March 23, 2009Date of Patent: November 29, 2011Assignee: 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
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Publication number: 20100237132Abstract: 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: ApplicationFiled: March 23, 2009Publication date: September 23, 2010Applicant: 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
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Publication number: 20100010473Abstract: 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: ApplicationFiled: July 8, 2009Publication date: January 14, 2010Applicant: 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