Patents by Inventor Tony D. Alexander

Tony D. Alexander 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: 8511310
    Abstract: The present invention, in an exemplary embodiment, provides a therapeutic medical appliance, delivery device and method of use. In particular, plug therapeutic medical appliances are provided that allow for the interventional treatment of pulmonary disorders such as defects characterized by pulmonary blebs and/or diffused destructive parenchymal disease. The plug therapeutic medical appliances themselves combine many of the excellent characteristics of both silicone and metal therapeutic medical appliances while eliminating the undesirable ones. In particular, these therapeutic medical appliances are preferably self-expanding in nature and allow the predetermined differential selection of relative hardness/softness of regions of the therapeutic medical appliance to provide additional patient comfort. An exemplary embodiment also provides a family of delivery devices that facilitate flexibility, durability and/or proper installation of one or more medical appliances in a single procedure.
    Type: Grant
    Filed: June 21, 2010
    Date of Patent: August 20, 2013
    Assignee: Merit Medical Systems, Inc.
    Inventors: Jason Reynolds, Tony D. Alexander, Ji Hwan You
  • Patent number: 8083692
    Abstract: The present invention provides a lumen measuring device and method that allows the user to calculate the exact length and diameter of a suitable interventional prosthesis as well as the height and length of stenosis during the same exploratory procedure.
    Type: Grant
    Filed: October 5, 2010
    Date of Patent: December 27, 2011
    Assignee: Merit Medical Systems, Inc.
    Inventors: Eric K. Mangiardi, Jason M. Reynolds, Ulf R. Borg, Tony D. Alexander
  • Patent number: 8012106
    Abstract: A lumen measuring device generally includes a central member dimensioned to extend into a lumen and an elongate outer member having a flexible region configured to flex outward from the central member in response to retraction of the central member. In measuring a lumen, the flexible region is caused to contact the lumen. The lumen may be contacted by linear segments that hinge or by members that bow arcuately. A polygon, such as a triangle, may be defined by portions of the outer member and the central member. A handle assembly may be provided by which the disposition of the central member relative to the outer member may be adjusted. Indicators may be defined by the central member and outer member by which the disposition of the central member and by which the diameter of a lumen may be determined.
    Type: Grant
    Filed: October 17, 2005
    Date of Patent: September 6, 2011
    Assignee: Merit Medical Systems, Inc.
    Inventors: Eric K. Mangiardi, Jason M. Reynolds, Ulf R. Borg, Tony D. Alexander
  • Patent number: 7959671
    Abstract: The present invention, in an exemplary embodiment, provides a stent, which combines many of the excellent characteristics of both silicone and metal stents while eliminating the undesirable ones. In particular, a principal objective in accordance with the present invention is to provide a family of stents where the relative hardness/softness of regions of the stent can differ from other regions of the stent to provide additional patient comfort and resistance to compression forces. Exemplary embodiments provide a stent that is covered so as to provide certain predefined characteristics. In particular, a covered stent is provided that is coated internally such that the outer scaffolding surface of the stent has enhanced friction points while the internal surface exemplifies certain characteristics.
    Type: Grant
    Filed: November 20, 2003
    Date of Patent: June 14, 2011
    Assignee: Merit Medical Systems, Inc.
    Inventors: Eric K. Mangiardi, Jason M. Reynolds, Ulf R. Borg, Tony D. Alexander
  • Publication number: 20110082392
    Abstract: The present invention provides a lumen measuring device and method that allows the user to calculate the exact length and diameter of a suitable interventional prosthesis as well as the height and length of stenosis during the same exploratory procedure.
    Type: Application
    Filed: October 5, 2010
    Publication date: April 7, 2011
    Applicant: MERIT MEDICAL SYSTEMS, INC.
    Inventors: Eric K. Mangiardi, Jason M. Reynolds, Ulf R. Borg, Tony D. Alexander
  • Patent number: 7887579
    Abstract: The present invention, in an exemplary embodiment, provides a stent, which combines many of the excellent characteristics of both silicone and metal stents while eliminating the undesirable ones. In particular, a principal objective in accordance with the present invention is to provide a family of stents where the relative hardness/softness of regions of the stent can differ from other regions of the stent to provide additional patient comfort and resistance to radial forces. An exemplary embodiment also provides a family of stents with obstruction clearance and/or radiation therapy capabilities.
    Type: Grant
    Filed: September 12, 2007
    Date of Patent: February 15, 2011
    Assignee: Merit Medical Systems, Inc.
    Inventors: Eric K. Mangiardi, Tony D. Alexander
  • Patent number: 7875068
    Abstract: The present invention, in an exemplary embodiment, provides a stent, which combines many of the excellent characteristics of both silicone and metal stents while eliminating the undesirable ones. In particular, a principal objective in accordance with the present invention is to provide a family of stents generally and a biliary stent in particular where the relative hardness/softness of regions of the stent can differ from other regions of the stent to provide additional patient comfort and resistance to radial forces. An exemplary embodiment also provides a family of stents with novel interstice configurations that facilitate flexibility, durability and/or proper installation. Additionally, the biliary stent in accordance with the present invention provides enhanced flow mechanics to ensure the adequate clearance of viscid fluids such as bile.
    Type: Grant
    Filed: September 30, 2003
    Date of Patent: January 25, 2011
    Assignee: Merit Medical Systems, Inc.
    Inventors: Eric K. Mangiardi, Jason M. Reynolds, Ulf R. Borg, Tony D. Alexander
  • Publication number: 20100305390
    Abstract: The present invention, in an exemplary embodiment, provides a therapeutic medical appliance, delivery device and method of use. In particular, plug therapeutic medical appliances are provided that allow for the interventional treatment of pulmonary disorders such as defects characterized by pulmonary blebs and/or diffused destructive parenchymal disease. The plug therapeutic medical appliances themselves combine many of the excellent characteristics of both silicone and metal therapeutic medical appliances while eliminating the undesirable ones. In particular, these therapeutic medical appliances are preferably self-expanding in nature and allow the predetermined differential selection of relative hardness/softness of regions of the therapeutic medical appliance to provide additional patient comfort. An exemplary embodiment also provides a family of delivery devices that facilitate flexibility, durability and/or proper installation of one or more medical appliances in a single procedure.
    Type: Application
    Filed: June 21, 2010
    Publication date: December 2, 2010
    Applicant: MERIT MEDICAL SYSTEMS, INC.
    Inventors: Jason Reynolds, Tony D. Alexander, Ji Hwan You
  • Patent number: 7757691
    Abstract: The present invention, in an exemplary embodiment, provides a therapeutic medical appliance, delivery device and method of use. In particular, plug therapeutic medical appliances are provided that allow for the interventional treatment of pulmonary disorders such as defects characterized by pulmonary blebs and/or diffused destructive parenchymal disease. The plug therapeutic medical appliances themselves combine many of the excellent characteristics of both silicone and metal therapeutic medical appliances while eliminating the undesirable ones. In particular, these therapeutic medical appliances are preferably self-expanding in nature and allow the predetermined differential selection of relative hardness/softness of regions of the therapeutic medical appliance to provide additional patient comfort. An exemplary embodiment also provides a family of delivery devices that facilitate flexibility, durability and/or proper installation of one or more medical appliances in a single procedure.
    Type: Grant
    Filed: August 9, 2004
    Date of Patent: July 20, 2010
    Assignee: Merit Medical Systems, Inc.
    Inventors: Jason Reynolds, Tony D. Alexander, Ji Hwan You
  • Publication number: 20080132998
    Abstract: The present invention, in an exemplary embodiment, provides a stent, which combines many of the excellent characteristics of both silicone and metal stents while eliminating the undesirable ones. In particular, a principal objective in accordance with the present invention is to provide a family of stents where the relative hardness/softness of regions of the stent can differ from other regions of the stent to provide additional patient comfort and resistance to radial forces. An exemplary embodiment also provides a family of stents with obstruction clearance and/or radiation therapy capabilities.
    Type: Application
    Filed: September 12, 2007
    Publication date: June 5, 2008
    Inventors: ERIC K. MANGIARDI, Tony D. Alexander
  • Publication number: 20040127974
    Abstract: The present invention, in an exemplary embodiment, provides a stent, which combines many of the excellent characteristics of both silicone and metal stents while eliminating the undesirable ones. In particular, a principal objective in accordance with the present invention is to provide a family of stents where the relative hardness/softness of regions of the stent can differ from other regions of the stent to provide additional patient comfort and resistance to compression forces. Exemplary embodiments provide a stent that is covered so as to provide certain predefined characteristics. In particular, a covered stent is provided that is coated internally such that the outer scaffolding surface of the stent has enhanced friction points while the internal surface exemplifies certain characteristics.
    Type: Application
    Filed: November 20, 2003
    Publication date: July 1, 2004
    Inventors: Eric K. Mangiardi, Jason M. Reynolds, Ulf R. Borg, Tony D. Alexander
  • Publication number: 20040127973
    Abstract: The present invention, in an exemplary embodiment, provides a stent, which combines many of the excellent characteristics of both silicone and metal stents while eliminating the undesirable ones. In particular, a principal objective in accordance with the present invention is to provide a family of stents generally and a biliary stent in particular where the relative hardness/softness of regions of the stent can differ from other regions of the stent to provide additional patient comfort and resistance to radial forces. An exemplary embodiment also provides a family of stents with novel interstice configurations that facilitate flexibility, durability and/or proper installation. Additionally, the biliary stent in accordance with the present invention provides enhanced flow mechanics to ensure the adequate clearance of viscid fluids such as bile.
    Type: Application
    Filed: September 30, 2003
    Publication date: July 1, 2004
    Inventors: Eric K. Mangiardi, Jason M. Reynolds, Ulf R. Borg, Tony D. Alexander