Patents by Inventor Gregory A. Dumanian

Gregory A. Dumanian 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: 11890003
    Abstract: A medical device includes a surgical needle, an elongated suture, and an intervening segment. The elongated suture has a first end proximate to the needle and a second end located away from the needle. The elongated suture also includes a plurality of fibers defining a mesh wall between the first and second ends. A plurality of pores extend through the mesh wall, at least some which are in the macroporous size range of greater than 200 microns for facilitating tissue integration when introduced into a body. The intervening segment is disposed between and connected to either or both ends of the elongated suture and the needle. The intervening segment includes one or more fibers of the plurality of fibers and has a cross-sectional dimension smaller than a cross-sectional dimension of the mesh wall such that the intervening segment facilitates indirect attachment of the elongated macroporous mesh suture to the needle.
    Type: Grant
    Filed: July 9, 2021
    Date of Patent: February 6, 2024
    Assignee: Northwestern University
    Inventor: Gregory A. Dumanian
  • Publication number: 20220330939
    Abstract: A medical device includes a surgical needle attached to a hollow tubular suture. The suture is constructed of macroporous hollow tubular wall that facilitates and allows tissue integration into the suture core subsequent to introduction to the body, thereby preventing suture pull-through and improving biocompatibility.
    Type: Application
    Filed: April 1, 2022
    Publication date: October 20, 2022
    Applicant: Northwestern University
    Inventors: Gregory Dumanian, Anandev Gurjala
  • Publication number: 20220054127
    Abstract: A medical device includes a surgical needle, an elongated suture, and an intervening segment. The elongated suture has a first end proximate to the needle and a second end located away from the needle. The elongated suture also includes a plurality of fibers defining a mesh wall between the first and second ends. A plurality of pores extend through the mesh wall, at least some which are in the macroporous size range of greater than 200 microns for facilitating tissue integration when introduced into a body. The intervening segment is disposed between and connected to either or both ends of the elongated suture and the needle. The intervening segment includes one or more fibers of the plurality of fibers and has a cross-sectional dimension smaller than a cross-sectional dimension of the mesh wall such that the intervening segment facilitates indirect attachment of the elongated macroporous mesh suture to the needle.
    Type: Application
    Filed: July 9, 2021
    Publication date: February 24, 2022
    Applicant: Northwestern University
    Inventor: Gregory A. Dumanian
  • Patent number: 11064996
    Abstract: A medical device includes a surgical needle, an elongated suture, and an intervening segment. The elongated suture has a first end proximate to the needle and a second end located away from the needle. The elongated suture also includes a plurality of fibers defining a mesh wall between the first and second ends. A plurality of pores extend through the mesh wall, at least some which are in the macroporous size range of greater than 200 microns for facilitating tissue integration when introduced into a body. The intervening segment is disposed between and connected to either or both ends of the elongated suture and the needle. The intervening segment includes one or more fibers of the plurality of fibers and has a cross-sectional dimension smaller than a cross-sectional dimension of the mesh wall such that the intervening segment facilitates indirect attachment of the elongated macroporous mesh suture to the needle.
    Type: Grant
    Filed: March 4, 2019
    Date of Patent: July 20, 2021
    Assignee: NORTHWESTERN UNIVERSITY
    Inventor: Gregory A. Dumanian
  • Patent number: 10881394
    Abstract: A medical device includes a surgical needle attached to an elongated mesh suture. The suture is constructed of macroporous flat wall that facilitates and allows tissue integration into the suture core subsequent to introduction to the body, thereby preventing suture pull-through and improving biocompatibility.
    Type: Grant
    Filed: September 13, 2017
    Date of Patent: January 5, 2021
    Assignee: NORTHWESTERN UNIVERSITY
    Inventors: Gregory Dumanian, Anandev Gurjala
  • Publication number: 20200129172
    Abstract: A medical device includes an elongated suture having a tension indicator carried by the elongated suture. The tension indicator signals over-tensioning of the elongated suture when a tensile load applied along an axial direction of the elongated suture exceeds a predetermined tensile load, thereby preventing over-tensioning of the suture and collapsing of the suture. Advantageously, the tension indicator serves as an integrated feedback device that provides instantaneous feedback when tensioning a suture, rather than having to use an external measuring device to determine the amount of tensile load applied to the suture.
    Type: Application
    Filed: October 29, 2018
    Publication date: April 30, 2020
    Inventors: Gregory A. Dumanian, Adom Dumanian
  • Publication number: 20190192142
    Abstract: A medical device includes a surgical needle, an elongated suture, and an intervening segment. The elongated suture has a first end proximate to the needle and a second end located away from the needle. The elongated suture also includes a plurality of fibers defining a mesh wall between the first and second ends. A plurality of pores extend through the mesh wall, at least some which are in the macroporous size range of greater than 200 microns for facilitating tissue integration when introduced into a body. The intervening segment is disposed between and connected to either or both ends of the elongated suture and the needle. The intervening segment includes one or more fibers of the plurality of fibers and has a cross-sectional dimension smaller than a cross-sectional dimension of the mesh wall such that the intervening segment facilitates indirect attachment of the elongated macroporous mesh suture to the needle.
    Type: Application
    Filed: March 4, 2019
    Publication date: June 27, 2019
    Inventor: Gregory A. Dumanian
  • Patent number: 10278694
    Abstract: A medical device includes a surgical needle, an elongated suture, and an intervening segment. The elongated suture has a first end proximate to the needle and a second end located away from the needle. The elongated suture also includes a plurality of fibers defining a mesh wall between the first and second ends. A plurality of pores extend through the mesh wall, at least some which are in the macroporous size range of greater than 200 microns for facilitating tissue integration when introduced into a body. The intervening segment is disposed between and connected to either or both ends of the elongated suture and the needle. The intervening segment includes one or more fibers of the plurality of fibers and has a cross-sectional dimension smaller than a cross-sectional dimension of the mesh wall such that the intervening segment facilitates indirect attachment of the elongated macroporous mesh suture to the needle.
    Type: Grant
    Filed: November 29, 2017
    Date of Patent: May 7, 2019
    Assignee: NORTHWESTERN UNIVERSITY
    Inventor: Gregory Dumanian
  • Patent number: 10279157
    Abstract: Embodiments for superficial tissue compliance modulation and negative pressure wound therapy for stabilization of a chronic percutaneous implant are disclosed. An external cap is coupled to a compliance gradient of progressively decreasing stiffness. Together the external cap and compliance gradient act as a stress shield that allows forces that would otherwise act on the skin at the skin-implant interface to be dissipated over a larger area. In addition, negative pressure and fluids may be applied through negative pressure and fluid adapters, respectively, to the skin-implant interface, the status of which may be further monitored through the use of one or more sensors.
    Type: Grant
    Filed: March 14, 2014
    Date of Patent: May 7, 2019
    Assignee: Rehabilitation Institute of Chicago
    Inventors: Todd A. Kuiken, Gregory A. Dumanian, Jason M. Souza
  • Publication number: 20180360453
    Abstract: A medical device includes a surgical needle and an elongated suture. The suture has a first end attached to the surgical needle and a second end located away from the surgical needle. The suture includes a mesh wall and a plurality of pores extending through the mesh wall. At least some of the pores in the macroporous size range of greater than 200 microns and adapted to facilitate tissue integration through the mesh wall of the suture when introduced into a body. The suture is configured to resist a tensile load applied along an axial direction between the first and second ends of the elongated suture such that upon overloading the mesh wall collapses upon itself resulting in apparent suture elongation, collapsed diameter, and/or reduction in pore size.
    Type: Application
    Filed: August 28, 2018
    Publication date: December 20, 2018
    Inventors: Gregory A. Dumanian, Justin Herbert, Adom Dumanian
  • Publication number: 20180078255
    Abstract: A medical device includes a surgical needle, an elongated suture, and an intervening segment. The elongated suture has a first end proximate to the needle and a second end located away from the needle. The elongated suture also includes a plurality of fibers defining a mesh wall between the first and second ends. A plurality of pores extend through the mesh wall, at least some which are in the macroporous size range of greater than 200 microns for facilitating tissue integration when introduced into a body. The intervening segment is disposed between and connected to either or both ends of the elongated suture and the needle. The intervening segment includes one or more fibers of the plurality of fibers and has a cross-sectional dimension smaller than a cross-sectional dimension of the mesh wall such that the intervening segment facilitates indirect attachment of the elongated macroporous mesh suture to the needle.
    Type: Application
    Filed: November 29, 2017
    Publication date: March 22, 2018
    Inventor: Gregory Dumanian
  • Publication number: 20180042608
    Abstract: A medical device includes a surgical needle attached to a mesh suture having anti-roping elements. The suture is constructed of a macroporous mesh wall that facilitates and allows tissue integration subsequent to introduction to the body, thereby preventing suture pull-through and improving biocompatibility. Advantageously, the anti-roping elements serve to maintain the desired construct of the mesh wall when undergoing axial tensile loads by resisting elongation and loss of outer mesh wall macroporosity, while still permitting a flattening of the suture with lateral loading.
    Type: Application
    Filed: March 1, 2016
    Publication date: February 15, 2018
    Inventors: Gregory Dumanian, Justin Herbert
  • Publication number: 20180021040
    Abstract: A medical device includes a surgical needle attached to an elongated mesh suture. The suture is constructed of macroporous flat wall that facilitates and allows tissue integration into the suture core subsequent to introduction to the body, thereby preventing suture pull-through and improving biocompatibility.
    Type: Application
    Filed: September 13, 2017
    Publication date: January 25, 2018
    Inventors: Gregory Dumanian, Anandev Gurjala
  • Publication number: 20180000480
    Abstract: A medical device includes a surgical needle attached to a mesh suture having anti-roping elements. The suture is constructed of a flat macroporous mesh wall that facilitates and allows tissue integration subsequent to introduction to the body, thereby preventing suture pull-through and improving biocompatibility. Advantageously, the anti-roping elements serve to maintain the desired construct of the flat mesh wall when undergoing axial tensile loads by resisting elongation and loss of outer mesh wall macroporosity.
    Type: Application
    Filed: September 13, 2017
    Publication date: January 4, 2018
    Inventors: Gregory Dumanian, Justin Herbert
  • Publication number: 20160106423
    Abstract: A medical device includes a surgical needle attached to a hollow tubular suture. The suture is constructed of macroporous hollow tubular wall that facilitates and allows tissue integration into the suture core subsequent to introduction to the body, thereby preventing suture pull-through and improving biocompatibility.
    Type: Application
    Filed: December 21, 2015
    Publication date: April 21, 2016
    Inventors: Gregory Dumanian, Anandev Gurjala
  • Patent number: 9237889
    Abstract: A medical device includes a surgical needle attached to a hollow tubular suture. The suture is constructed of macroporous hollow tubular wall that facilitates and allows tissue integration into the suture core subsequent to introduction to the body, thereby preventing suture pull-through and improving biocompatibility.
    Type: Grant
    Filed: December 13, 2012
    Date of Patent: January 19, 2016
    Assignee: NORTHWESTERN UNIVERSITY
    Inventors: Gregory Dumanian, Anandev Gurjala
  • Publication number: 20140276454
    Abstract: Embodiments for superficial tissue compliance modulation and negative pressure wound therapy for stabilization of a chronic percutaneous implant are disclosed. An external cap is coupled to a compliance gradient of progressively decreasing stiffness. Together the external cap and compliance gradient act as a stress shield that allows forces that would otherwise act on the skin at the skin-implant interface to be dissipated over a larger area. In addition, negative pressure and fluids may be applied through negative pressure and fluid adapters, respectively, to the skin-implant interface, the status of which may be further monitored through the use of one or more sensors.
    Type: Application
    Filed: March 14, 2014
    Publication date: September 18, 2014
    Applicant: Rehabilitation Institute of Chicago
    Inventors: Todd A. Kuiken, Gregory A. Dumanian, Jason M. Souza