Patents by Inventor William Gregory Ladd

William Gregory Ladd 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).

  • Apparatus for trapping emboli
    Patent number: 7785345
    Abstract: A filter for filtering micro-emboli from a patient's blood during an angioplasty procedure is disclosed which comprises a plurality of curved wires connected to a rod between a first connector fixed with respect to the rod and a second connector slidingly mounted on the rod. Two layers of filter material are connected to opposite sides of the wires, and each layer includes perforations which are offset from the perforations in the other layer. When the rod and the wires are disposed within a catheter, the inner wall of the catheter compresses the wires toward the rod and when the rod is extended from the catheter, the wires resume their curved shape and pull the sliding connector along the rod toward the fixed connector.
    Type: Grant
    Filed: December 22, 2006
    Date of Patent: August 31, 2010
    Assignee: Medtronic Vascular, Inc.
    Inventor: William Gregory Ladd
  • Apparatus for trapping emboli
    Patent number: 7766936
    Abstract: A filter for filtering micro-emboli from a patient's blood during an angioplasty procedure is disclosed which comprises a plurality of curved wires connected to a rod between a first connector fixed with respect to the rod and a second connector slidingly mounted on the rod. Two layers of filter material are connected to opposite sides of the wires, and each layer includes perforations which are offset from the perforations in the other layer. When the rod and the wires are disposed within a catheter, the inner wall of the catheter compresses the wires toward the rod and when the rod is extended from the catheter, the wires resume their curved shape and pull the sliding connector along the rod toward the fixed connector.
    Type: Grant
    Filed: December 22, 2006
    Date of Patent: August 3, 2010
    Assignee: Medtronic Vascular, Inc.
    Inventor: William Gregory Ladd
  • Apparatus for trapping emboli
    Patent number: 7241305
    Abstract: A filter for filtering micro-emboli from a patient's blood during an angioplasty procedure is disclosed which comprises a plurality of curved wires connected to a rod between a first connector fixed with respect to the rod and a second connector slidingly mounted on the rod. Two layers of filter material are connected to opposite sides of the wires, and each layer includes perforations which are offset from the perforations in the other layer. When the rod and the wires are disposed within a catheter, the inner wall of the catheter compresses the wires toward the rod and when the rod is extended from the catheter, the wires resume their curved shape and pull the sliding connector along the rod toward the fixed connector.
    Type: Grant
    Filed: April 1, 2003
    Date of Patent: July 10, 2007
    Assignee: Medtronic Vascular, Inc.
    Inventor: William Gregory Ladd
  • Filter assembly
    Patent number: 6761727
    Abstract: A filter for filtering micro-emboli from a patient's blood during an angioplasty procedure is disclosed which comprises a plurality of curved wires connected to a rod between a first connector fixed with respect to the rod and a second connector slidingly mounted on the rod. Two layers of filter material are connected to opposite sides of the wires, and each layer includes perforations which are offset from the perforations in the other layer. When the rod and the wires are disposed within a catheter, the inner wall of the catheter compresses the wires toward the rod and when the rod is extended from the catheter, the wires resume their curved shape and pull the sliding connector along the rod toward the fixed connector.
    Type: Grant
    Filed: February 23, 2000
    Date of Patent: July 13, 2004
    Assignee: Medtronic Ave, Inc.
    Inventor: William Gregory Ladd
  • Apparatus for trapping emboli
    Publication number: 20040006364
    Abstract: A filter for filtering micro-emboli from a patient's blood during an angioplasty procedure is disclosed which comprises a plurality of curved wires connected to a rod between a first connector fixed with respect to the rod and a second connector slidingly mounted on the rod. Two layers of filter material are connected to opposite sides of the wires, and each layer includes perforations which are offset from the perforations in the other layer. When the rod and the wires are disposed within a catheter, the inner wall of the catheter compresses the wires toward the rod and when the rod is extended from the catheter, the wires resume their curved shape and pull the sliding connector along the rod toward the fixed connector.
    Type: Application
    Filed: April 1, 2003
    Publication date: January 8, 2004
    Inventor: William Gregory Ladd
  • Filter for filtering fluid in a bodily passageway
    Patent number: 6059814
    Abstract: A filter for filtering micro-emboli from a patient's blood during an angioplasty procedure is disclosed which comprises a plurality of curved wires connected to a rod between a first connector fixed with respect to the rod and a second connector slidingly mounted on the rod. Two layers of filter material are connected to opposite sides of the wires, and each layer includes perforations which are offset from the perforations in the other layer. When the rod and the wires are disposed within a catheter, the inner wall of the catheter compresses the wires toward the rod and when the rod is extended from the catheter, the wires resume their curved shape and pull the sliding connector along the rod toward the fixed connector.
    Type: Grant
    Filed: August 29, 1997
    Date of Patent: May 9, 2000
    Assignee: Medtronic Ave., Inc.
    Inventor: William Gregory Ladd