Patents by Inventor Matthew R. Hellewell

Matthew R. Hellewell 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).

  • Publication number: 20210212699
    Abstract: A system for treating an aneurysm comprises an elongate flexible shaft and an expandable member. An expandable scaffold is disposed over the expandable member and may be expanded from a collapsed configuration to an expanded configuration. A double-walled filling structure is disposed over the scaffold and has an outer wall and an inner wall. The filling structure is adapted to be filled with a hardenable fluid filing medium so that the outer wall conforms to an inside surface of the aneurysm and the inner wall forms a substantially tubular lumen to provide a path for blood flow. In the expanded configuration the scaffold engages the inner wall of the filling structure. A tether is releasably coupled with the filling structure and the flexible shaft thereby constraining axial movement of the structures relative to each other.
    Type: Application
    Filed: January 25, 2021
    Publication date: July 15, 2021
    Inventors: Steven L. Herbowy, Michael A. Evans, Anant Kumar, K.T. Venkateswara Rao, Matthew R. Hellewell, Gil Laroya
  • Patent number: 10898201
    Abstract: A system for treating an aneurysm comprises an elongate flexible shaft and an expandable member. An expandable scaffold is disposed over the expandable member and may be expanded from a collapsed configuration to an expanded configuration. A double-walled filling structure is disposed over the scaffold and has an outer wall and an inner wall. The filling structure is adapted to be filled with a hardenable fluid filing medium so that the outer wall conforms to an inside surface of the aneurysm and the inner wall forms a substantially tubular lumen to provide a path for blood flow. In the expanded configuration the scaffold engages the inner wall of the filling structure. A tether is releasably coupled with the filling structure and the flexible shaft thereby constraining axial movement of the structures relative to each other.
    Type: Grant
    Filed: August 14, 2017
    Date of Patent: January 26, 2021
    Assignee: Nellix, Inc.
    Inventors: Steven L. Herbowy, Michael A. Evans, Anant Kumar, K. T. Venkateswara Rao, Matthew R. Hellewell, Gil Laroya
  • Publication number: 20180028192
    Abstract: A system for treating an aneurysm comprises an elongate flexible shaft and an expandable member. An expandable scaffold is disposed over the expandable member and may be expanded from a collapsed configuration to an expanded configuration. A double-walled filling structure is disposed over the scaffold and has an outer wall and an inner wall. The filling structure is adapted to be filled with a hardenable fluid filing medium so that the outer wall conforms to an inside surface of the aneurysm and the inner wall forms a substantially tubular lumen to provide a path for blood flow. In the expanded configuration the scaffold engages the inner wall of the filling structure. A tether is releasably coupled with the filling structure and the flexible shaft thereby constraining axial movement of the structures relative to each other.
    Type: Application
    Filed: August 14, 2017
    Publication date: February 1, 2018
    Inventors: Steven L. Herbowy, Michael A Evans, Anant Kumar, K.T. Venkateswara Rao, Matthew R. Hellewell, Gil Laroya
  • Patent number: 9730700
    Abstract: A system for treating an aneurysm comprises an elongate flexible shaft and an expandable member. An expandable scaffold is disposed over the expandable member and may be expanded from a collapsed configuration to an expanded configuration. A double-walled filling structure is disposed over the scaffold and has an outer wall and an inner wall. The filling structure is adapted to be filled with a hardenable fluid filing medium so that the outer wall conforms to an inside surface of the aneurysm and the inner wall forms a substantially tubular lumen to provide a path for blood flow. In the expanded configuration the scaffold engages the inner wall of the filling structure. A tether is releasably coupled with the filling structure and the flexible shaft thereby constraining axial movement of the structures relative to each other.
    Type: Grant
    Filed: April 23, 2015
    Date of Patent: August 15, 2017
    Assignee: Nellix, Inc.
    Inventors: Steven L. Herbowy, Michael A. Evans, Anant Kumar, K. T. Venkateswara Rao, Matthew R. Hellewell, Gil Laroya
  • Publication number: 20150216535
    Abstract: A system for treating an aneurysm comprises an elongate flexible shaft and an expandable member. An expandable scaffold is disposed over the expandable member and may be expanded from a collapsed configuration to an expanded configuration. A double-walled filling structure is disposed over the scaffold and has an outer wall and an inner wall. The filling structure is adapted to be filled with a hardenable fluid filing medium so that the outer wall conforms to an inside surface of the aneurysm and the inner wall forms a substantially tubular lumen to provide a path for blood flow. In the expanded configuration the scaffold engages the inner wall of the filling structure. A tether is releasably coupled with the filling structure and the flexible shaft thereby constraining axial movement of the structures relative to each other.
    Type: Application
    Filed: April 23, 2015
    Publication date: August 6, 2015
    Inventors: STEVEN L. HERBOWY, MICHAEL A. EVANS, ANANT KUMAR, K.T. VENKATESWARA RAO, MATTHEW R. HELLEWELL, GIL LAROYA
  • Patent number: 8926682
    Abstract: A system for treating an aneurysm comprises an elongate flexible shaft and an expandable member. An expandable scaffold is disposed over the expandable member and may be expanded from a collapsed configuration to an expanded configuration. A double-walled filling structure is disposed over the scaffold and has an outer wall and an inner wall. The filling structure is adapted to be filled with a hardenable fluid filing medium so that the outer wall conforms to an inside surface of the aneurysm and the inner wall forms a substantially tubular lumen to provide a path for blood flow. In the expanded configuration the scaffold engages the inner wall of the filling structure. A tether is releasably coupled with the filling structure and the flexible shaft thereby constraining axial movement of the structures relative to each other.
    Type: Grant
    Filed: September 23, 2011
    Date of Patent: January 6, 2015
    Assignee: Nellix, Inc.
    Inventors: Steven L. Herbowy, Michael A. Evans, Anant Kumar, K. T. Venkateswara Rao, Matthew R. Hellewell, Gil Laroya
  • Patent number: 8182525
    Abstract: Aneurysms are treated by filling a double-walled filling structure with a curable medium. The structures may be delivered over balloon deployment mechanisms in order to shape and open tubular lumens therethrough. The filling structures are preferably used in pairs for providing flow into the iliac arteries when treating abdominal aortic aneurysm.
    Type: Grant
    Filed: April 9, 2009
    Date of Patent: May 22, 2012
    Assignee: Endologix, Inc.
    Inventors: Steven L. Herbowy, Matthew R. Hellewell, K. T. Venkateswara Rao, Michael A. Evans, Thomas Howell, Gwendolyn A. Watanabe, Bhupendra Shah, James McKinley
  • Publication number: 20120016456
    Abstract: A system for treating an aneurysm comprises an elongate flexible shaft and an expandable member. An expandable scaffold is disposed over the expandable member and may be expanded from a collapsed configuration to an expanded configuration. A double-walled filling structure is disposed over the scaffold and has an outer wall and an inner wall. The filling structure is adapted to be filled with a hardenable fluid filing medium so that the outer wall conforms to an inside surface of the aneurysm and the inner wall forms a substantially tubular lumen to provide a path for blood flow. In the expanded configuration the scaffold engages the inner wall of the filling structure. A tether is releasably coupled with the filling structure and the flexible shaft thereby constraining axial movement of the structures relative to each other.
    Type: Application
    Filed: September 23, 2011
    Publication date: January 19, 2012
    Applicant: Endologix, Inc.
    Inventors: Steven L. Herbowy, Michael A. Evans, Anant Kumar, K.T. Venkateswara Rao, Matthew R. Hellewell, Gil Laroya
  • Publication number: 20100036360
    Abstract: A system for treating an aneurysm comprises an elongate flexible shaft and an expandable member. An expandable scaffold is disposed over the expandable member and may be expanded from a collapsed configuration to an expanded configuration. A double-walled filling structure is disposed over the scaffold and has an outer wall and an inner wall. The filling structure is adapted to be filled with a hardenable fluid filing medium so that the outer wall conforms to an inside surface of the aneurysm and the inner wall forms a substantially tubular lumen to provide a path for blood flow. In the expanded configuration the scaffold engages the inner wall of the filling structure. A tether is releasably coupled with the filling structure and the flexible shaft thereby constraining axial movement of the structures relative to each other.
    Type: Application
    Filed: April 24, 2009
    Publication date: February 11, 2010
    Applicant: Nellix, Inc.
    Inventors: Steven L. Herbowy, Michael A. Evans, Anant Kumar, K.T. Venkateswara Rao, Matthew R. Hellewell, Gil Laroya