Patents by Inventor Steven Kum

Steven Kum 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).

  • Methods for puncturing an expandable member to confirm advancement into a body passage
    Patent number: 10405967
    Abstract: A device includes a first end portion, a second end portion, an intermediate portion, and a graft material. The first end portion has a first end diameter. The second end portion has a second end diameter smaller than the first end diameter. The first end portion comprises a first material. The second end portion comprises a second material different than the first material. The intermediate portion is between the first end portion and the second end portion. The intermediate portion tapers between the first end portion and the second end portion. The graft material is coupled to at least the intermediate portion.
    Type: Grant
    Filed: May 13, 2019
    Date of Patent: September 10, 2019
    Assignee: LimFlow GmbH
    Inventors: Robert Julian Dickinson, Roberto Ferraresi, Steven Kum, Timothy Lenihan, Andrew Robert Pacey, Martin Terry Rothman
  • METHODS AND SYSTEMS FOR PROVIDING OR MAINTAINING FLUID FLOW THROUGH BODY PASSAGES
    Publication number: 20190262124
    Abstract: A device includes a first end portion, a second end portion, an intermediate portion, and a graft material. The first end portion has a first end diameter. The second end portion has a second end diameter smaller than the first end diameter. The first end portion comprises a first material. The second end portion comprises a second material different than the first material. The intermediate portion is between the first end portion and the second end portion. The intermediate portion tapers between the first end portion and the second end portion. The graft material is coupled to at least the intermediate portion.
    Type: Application
    Filed: May 13, 2019
    Publication date: August 29, 2019
    Inventors: Robert Julian Dickinson, Roberto Ferraresi, Steven Kum, Timothy Lenihan, Andrew Robert Pacey, Martin Terry Rothman
  • Systems for providing or maintaining fluid flow through body passages
    Patent number: 10285800
    Abstract: A device includes a first end portion, a second end portion, an intermediate portion, and a graft material. The first end portion has a first end diameter. The second end portion has a second end diameter smaller than the first end diameter. The first end portion comprises a first material. The second end portion comprises a second material different than the first material. The intermediate portion is between the first end portion and the second end portion. The intermediate portion tapers between the first end portion and the second end portion. The graft material is coupled to at least the intermediate portion.
    Type: Grant
    Filed: July 13, 2017
    Date of Patent: May 14, 2019
    Assignee: LimFlow GmbH
    Inventors: Robert Julian Dickinson, Roberto Ferraresi, Steven Kum, Timothy Lenihan, Andrew Robert Pacey, Martin Terry Rothman
  • SYSTEMS FOR PROVIDING OR MAINTAINING FLUID FLOW THROUGH BODY PASSAGES
    Publication number: 20170303927
    Abstract: A device includes a first end portion, a second end portion, an intermediate portion, and a graft material. The first end portion has a first end diameter. The second end portion has a second end diameter smaller than the first end diameter. The first end portion comprises a first material. The second end portion comprises a second material different than the first material. The intermediate portion is between the first end portion and the second end portion. The intermediate portion tapers between the first end portion and the second end portion. The graft material is coupled to at least the intermediate portion.
    Type: Application
    Filed: July 13, 2017
    Publication date: October 26, 2017
    Inventors: Robert Julian Dickinson, Roberto Ferraresi, Steven Kum, Timothy Lenihan, Andrew Robert Pacey, Martin Terry Rothman
  • Methods for targeting body passages
    Patent number: 9706998
    Abstract: A device includes a first end portion, a second end portion, an intermediate portion, and a graft material. The first end portion has a first end diameter. The second end portion has a second end diameter smaller than the first end diameter. The first end portion comprises a first material. The second end portion comprises a second material different than the first material. The intermediate portion is between the first end portion and the second end portion. The intermediate portion tapers between the first end portion and the second end portion. The graft material is coupled to at least the intermediate portion.
    Type: Grant
    Filed: March 30, 2016
    Date of Patent: July 18, 2017
    Assignee: LimFlow GmbH
    Inventors: Robert Julian Dickinson, Roberto Ferraresi, Steven Kum, Timothy Lenihan, Andrew Robert Pacey, Martin Terry Rothman
  • DEVICES AND METHODS FOR TREATING LOWER EXTREMITY VASCULATURE
    Publication number: 20170128704
    Abstract: A method of diverting fluid flow from a first vessel including an occlusion to a second vessel includes deploying a prosthesis at least partially in a fistula and making valves in the second vessel incompetent. Making the valves in the second vessel incompetent includes at least one of using a reverse valvulotome to cut the valves, inflating a balloon, expanding a stent, and lining the second vessel with a stent.
    Type: Application
    Filed: January 13, 2017
    Publication date: May 11, 2017
    Inventors: Timothy Lenihan, Martin Terry Rothman, Roberto Ferraresi, Steven Kum
  • Devices and methods for treating lower extremity vasculature
    Patent number: 9545263
    Abstract: A method of diverting fluid flow from a first vessel including an occlusion to a second vessel includes deploying a prosthesis at least partially in a fistula and making valves in the second vessel incompetent. Making the valves in the second vessel incompetent includes at least one of using a reverse valvulotome to cut the valves, inflating a balloon, expanding a stent, and lining the second vessel with a stent.
    Type: Grant
    Filed: May 21, 2015
    Date of Patent: January 17, 2017
    Assignee: LimFlow GmbH
    Inventors: Timothy Lenihan, Martin Terry Rothman, Roberto Ferraresi, Steven Kum
  • METHODS FOR TARGETING BODY PASSAGES
    Publication number: 20160206317
    Abstract: A device includes a first end portion, a second end portion, an intermediate portion, and a graft material. The first end portion has a first end diameter. The second end portion has a second end diameter smaller than the first end diameter. The first end portion comprises a first material. The second end portion comprises a second material different than the first material. The intermediate portion is between the first end portion and the second end portion. The intermediate portion tapers between the first end portion and the second end portion. The graft material is coupled to at least the intermediate portion.
    Type: Application
    Filed: March 30, 2016
    Publication date: July 21, 2016
    Inventors: Robert Julian Dickinson, Roberto Ferraresi, Steven Kum, Timothy Lenihan, Andrew Robert Pacey, Martin Terry Rothman
  • Methods and systems for providing or maintaining fluid flow through body passages
    Patent number: 9314329
    Abstract: A device includes a first end portion, a second end portion, an intermediate portion, and a graft material. The first end portion has a first end diameter. The second end portion has a second end diameter smaller than the first end diameter. The first end portion comprises a first material. The second end portion comprises a second material different than the first material. The intermediate portion is between the first end portion and the second end portion. The intermediate portion tapers between the first end portion and the second end portion. The graft material is coupled to at least the intermediate portion.
    Type: Grant
    Filed: August 25, 2015
    Date of Patent: April 19, 2016
    Assignee: LimFlow GmbH
    Inventors: Robert Julian Dickinson, Roberto Ferraresi, Steven Kum, Timothy Lenihan, Andrew Robert Pacey, Martin Terry Rothman
  • METHODS AND SYSTEMS FOR PROVIDING OR MAINTAINING FLUID FLOW THROUGH BODY PASSAGES
    Publication number: 20150374486
    Abstract: A device includes a first end portion, a second end portion, an intermediate portion, and a graft material. The first end portion has a first end diameter. The second end portion has a second end diameter smaller than the first end diameter. The first end portion comprises a first material. The second end portion comprises a second material different than the first material. The intermediate portion is between the first end portion and the second end portion. The intermediate portion tapers between the first end portion and the second end portion. The graft material is coupled to at least the intermediate portion.
    Type: Application
    Filed: August 25, 2015
    Publication date: December 31, 2015
    Inventors: Robert Julian Dickinson, Roberto Ferraresi, Steven Kum, Timothy Lenihan, Andrew Robert Pacey, Martin Terry Rothman
  • DEVICES AND METHODS FOR TREATING LOWER EXTREMITY VASCULATURE
    Publication number: 20150366580
    Abstract: A method of diverting fluid flow from a first vessel including an occlusion to a second vessel includes deploying a prosthesis at least partially in a fistula and making valves in the second vessel incompetent. Making the valves in the second vessel incompetent includes at least one of using a reverse valvulotome to cut the valves, inflating a balloon, expanding a stent, and lining the second vessel with a stent.
    Type: Application
    Filed: May 21, 2015
    Publication date: December 24, 2015
    Inventors: Timothy Lenihan, Martin Terry Rothman, Roberto Ferraresi, Steven Kum