Patents by Inventor Richard J. Greff

Richard J. Greff 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: 9358014
    Abstract: A liquid embolic delivery system is provided for trapping an injected liquid embolic composition to prevent the liquid embolic from solidifying or otherwise passing outside of an embolization area. The delivery system includes a catheter for delivery of a liquid embolic composition and a containment member positioned at a distal end of the catheter which is shaped to trap the liquid embolic composition delivered through the lumen of the catheter. The containment member is formed as a brush, nest, sponge, swab, flexible sack, or other shape into and around which the liquid embolic composition is injected. The liquid embolic composition is trapped or meshes with the containment member during solidification containing the liquid embolic and preventing the embolic composition from passing into the blood stream.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: June 7, 2016
    Assignee: Covidien LP
    Inventors: Andrew H. Cragg, Blair D. Walker, John Perl, II, Michael Jones, George Robert Greene, George Wallace, Richard J. Greff
  • Patent number: 8821918
    Abstract: Disclosed is a biocompatible, hemostatic, cross-linked gelatin composition comprising a biocompatible material comprising cross-linked gelatin and a sufficient amount of wetting agent to permit uniform wetting of the sponge in the presence of an aqueous solution.
    Type: Grant
    Filed: August 15, 2013
    Date of Patent: September 2, 2014
    Assignee: Boston Scientific Scimed Inc.
    Inventor: Richard J. Greff
  • Publication number: 20130324470
    Abstract: Disclosed is a biocompatible, hemostatic, cross-linked gelatin composition comprising a biocompatible material comprising cross-linked gelatin and a sufficient amount of wetting agent to permit uniform wetting of the sponge in the presence of an aqueous solution.
    Type: Application
    Filed: August 21, 2013
    Publication date: December 5, 2013
    Inventor: Richard J. Greff
  • Patent number: 8524270
    Abstract: Disclosed is a biocompatible, hemostatic, cross-linked gelatin composition comprising a biocompatible material comprising cross-linked gelatin and a sufficient amount of wetting agent to permit uniform wetting of the sponge in the presence of an aqueous solution.
    Type: Grant
    Filed: May 22, 2012
    Date of Patent: September 3, 2013
    Assignee: Boston Scientific Scimed, Inc.
    Inventor: Richard J. Greff
  • Patent number: 8454649
    Abstract: A liquid embolic delivery system is provided for trapping an injected liquid embolic composition to prevent the liquid embolic from solidifying or otherwise passing outside of an embolization area. The delivery system includes a catheter for delivery of a liquid embolic composition and a containment member positioned at a distal end of the catheter which is shaped to trap the liquid embolic composition delivered through the lumen of the catheter. The containment member is formed as a brush, nest, sponge, swab, flexible sack, or other shape into and around which the liquid embolic composition is injected. The liquid embolic composition is trapped or meshes with the containment member during solidification containing the liquid embolic and preventing the embolic composition from passing into the blood stream.
    Type: Grant
    Filed: June 2, 2011
    Date of Patent: June 4, 2013
    Assignee: Covidien LP
    Inventors: Andrew H. Cragg, Blair D. Walker, John Perl, II, Michael Jones, George Robert Greene, George Wallace, Richard J. Greff
  • Patent number: 8287594
    Abstract: A medical device and methods to relieve joint pain and adapted for knee joint repair, replacement and augmentation. The invention discloses joint lubricant, particularly hyaluronate compositions and methods for treatment of osteoarthritis.
    Type: Grant
    Filed: November 18, 2010
    Date of Patent: October 16, 2012
    Assignee: Intersect Partners, LLC
    Inventors: Andrew H. Cragg, Richard J. Greff, George Wallace, Robert J. Socci, Jr., Jonathan Kagan, Rodolfo C. Quijano, Hosheng Tu
  • Publication number: 20120232013
    Abstract: Disclosed is a biocompatible, hemostatic, cross-linked gelatin composition comprising a biocompatible material comprising cross-linked gelatin and a sufficient amount of wetting agent to permit uniform wetting of the sponge in the presence of an aqueous solution.
    Type: Application
    Filed: May 22, 2012
    Publication date: September 13, 2012
    Applicant: BOSTON SCIENTIFIC SCIMED, INC.
    Inventor: Richard J. Greff
  • Patent number: 8187625
    Abstract: Disclosed is a biocompatible, hemostatic, cross-linked gelatin composition comprising a biocompatible material comprising cross-linked gelatin and a sufficient amount of wetting agent to permit uniform wetting of the sponge in the presence of an aqueous solution.
    Type: Grant
    Filed: February 4, 2002
    Date of Patent: May 29, 2012
    Assignee: Boston Scientific Scimed, Inc.
    Inventor: Richard J. Greff
  • Publication number: 20110264073
    Abstract: A liquid embolic delivery system is provided for trapping an injected liquid embolic composition to prevent the liquid embolic from solidifying or otherwise passing outside of an embolization area. The delivery system includes a catheter for delivery of a liquid embolic composition and a containment member positioned at a distal end of the catheter which is shaped to trap the liquid embolic composition delivered through the lumen of the catheter. The containment member is formed as a brush, nest, sponge, swab, flexible sack, or other shape into and around which the liquid embolic composition is injected. The liquid embolic composition is trapped or meshes with the containment member during solidification containing the liquid embolic and preventing the embolic composition from passing into the blood stream.
    Type: Application
    Filed: June 2, 2011
    Publication date: October 27, 2011
    Inventors: Andrew H. Cragg, Blair D. Walker, John Perl, II, Michael Jones, George Robert Greene, George Wallace, Richard J. Greff
  • Publication number: 20110172768
    Abstract: A medical device and methods to relieve joint pain and adapted for knee joint repair, replacement and augmentation. The invention discloses joint lubricant, particularly hyaluronate compositions and methods for treatment of osteoarthritis.
    Type: Application
    Filed: November 18, 2010
    Publication date: July 14, 2011
    Inventors: Andrew H. Cragg, Richard J. Greff, George Wallace, Robert J. Socci, JR., Jonathan Kagan, Rodolfo C. Quijano, Hosheng Tu
  • Patent number: 7976527
    Abstract: A liquid embolic delivery system is provided for trapping an injected liquid embolic composition to prevent the liquid embolic from solidifying or otherwise passing outside of an embolization area. The delivery system includes a catheter for delivery of a liquid embolic composition and a containment member positioned at a distal end of the catheter which is shaped to trap the liquid embolic composition delivered through the lumen of the catheter. The containment member is formed as a brush, nest, sponge, swab, flexible sack, or other shape into and around which the liquid embolic composition is injected. The liquid embolic composition is trapped or meshes with the containment member during solidification containing the liquid embolic and preventing the embolic composition from passing into the blood stream.
    Type: Grant
    Filed: October 24, 2007
    Date of Patent: July 12, 2011
    Assignee: Micro Therapeutics, Inc.
    Inventors: Andrew H. Cragg, Blair D. Walker, John Perl, II, Michael Jones, George R. Greene, George Wallace, Richard J. Greff
  • Patent number: 7507394
    Abstract: Disclosed are novel compositions for embolizing blood vessels which are particularly suited for treating vascular lesions via catheter delivery.
    Type: Grant
    Filed: October 28, 2002
    Date of Patent: March 24, 2009
    Assignee: Micro Therapeutics, Inc.
    Inventors: Thomas J. Whalen, Chinh N. Tran, Noah M. Roth, Richard J. Greff
  • Patent number: 7459142
    Abstract: Disclosed are novel high viscosity compositions for embolizing blood vessels which comprise a biocompatible prepolymer and a contrast agent, and optionally a thickening agent and/or a biocompatible solvent. Also disclosed are methods for embolizing a vascular site by injecting high viscosity prepolymer compositions into said site. The disclosed compositions and methods are particularly well suited for the treatment of aneurysms.
    Type: Grant
    Filed: June 6, 2002
    Date of Patent: December 2, 2008
    Assignee: Micro Therapeutics, Inc.
    Inventor: Richard J. Greff
  • Patent number: 7264772
    Abstract: Disclosed are methods for sterilizing cross-linked gelatin as well as to sterilized cross-linked gelatin. In particular, the methods of this invention employ E-beam sterilization techniques.
    Type: Grant
    Filed: October 5, 2004
    Date of Patent: September 4, 2007
    Assignee: Boston Scientific Scimed, Inc.
    Inventors: Mark Ashby, Eduardo C. Sing, Richard J. Greff
  • Patent number: 7138106
    Abstract: Disclosed are compositions suitable for use in embolizing blood vessels which compositions comprise a polymer, a biocompatible solvent and a contrast agent. The polymer is selected from the group consisting of polyacrylonitrile, polyurethane, polyvinylacetate, cellulose acetate butyrate, nitrocellulose and copolymers of urethane/carbonate and copolymers of styrene/maleic acid.
    Type: Grant
    Filed: June 5, 2002
    Date of Patent: November 21, 2006
    Assignee: Mirco Therapeutics, Inc.
    Inventors: Scott Evans, Richard J. Greff, James I. Wright
  • Patent number: 7083643
    Abstract: This invention is directed to methods for treating aneurysms wherein the aneurysmal sac is filled with a non-particulate agent or plurality of such agents and/or with a fluid composition which solidifies in situ. Filling of the aneurysmal sac employs sufficient amount of the non-particulate agent or plurality of such agents and/or the fluid composition to inhibit blood flow into the aneurysm sac. In addition, the methods of this invention also provide for non-endogenous isolation of the parent artery proximal and distal to the aneurysmal sac from systemic blood flow of the treated mammal. The combination of these features provides for treatment of the aneurysmal sac while, at the same time, inhibiting aneurysm formation and/or regrowth in the diseased portions of the arterial wall proximal and distal to the treated aneurysm.
    Type: Grant
    Filed: March 17, 2003
    Date of Patent: August 1, 2006
    Assignee: Micro Therapeutics, Inc.
    Inventors: Thomas J. Whalen, II, Richard J. Greff, Kevin P. Gilmartin, Douglas Ray Hayman, Todd J. Hewitt, Ed L. Olson, Mark A. Pecor, Earl H. Slee, George Wallace
  • Patent number: 7022318
    Abstract: Disclosed are methods for treating urinary incontinence in a mammal wherein a composition comprising a biocompatible polymer, a biocompatible solvent, and a contrast agent is delivered to the periurethral tissue of the mammal.
    Type: Grant
    Filed: December 30, 2002
    Date of Patent: April 4, 2006
    Assignee: Micro Therapeutics, Inc.
    Inventors: George Wallace, Richard J. Greff
  • Patent number: 7011677
    Abstract: Disclosed are methods for vascular reconstruction of diseased, non-aneurysmal arteries.
    Type: Grant
    Filed: March 17, 2003
    Date of Patent: March 14, 2006
    Assignee: Micro Therapeutics, Inc.
    Inventors: George Wallace, Richard J. Greff, Earl H. Slee, Thomas J. Whalen, II
  • Patent number: 6964657
    Abstract: A catheter according to the present invention includes a multiple lumen catheter for delivery of a liquid embolic composition through a first lumen and delivery of a solidification agent through a second lumen. The catheter allows adjustment of the relative longitudinal position of the two lumens to control the solidification of the embolic composition within a blood vessel. The multiple lumen catheter system is used by inserting the catheter endovascularly into an aneurysm site and injecting a liquid embolic composition through the first lumen while injecting a solidification agent through the second lumen to wash the area of the aneurysm of blood which has become saturated with solvent, while replacing it with a fresh solidification agent.
    Type: Grant
    Filed: February 11, 2003
    Date of Patent: November 15, 2005
    Assignee: Micro Therapeutics, Inc.
    Inventors: Andrew H. Cragg, Richard J. Greff, Robert Pecor, John Perl, Blair Walker, George Wallace
  • Patent number: RE39456
    Abstract: Disclosed are novel radioactive compositions which are particularly suited for treating solid mass tumors via catheter delivery.
    Type: Grant
    Filed: May 13, 2005
    Date of Patent: January 2, 2007
    Assignee: Micro Therapeutics, Inc.
    Inventors: Richard J. Greff, George Wallace