Patents by Inventor John Perl

John Perl 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).

  • DEVICE AND METHOD FOR CONTROLLING INJECTION OF LIQUID EMBOLIC COMPOSITION
    Publication number: 20080045922
    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: October 24, 2007
    Publication date: February 21, 2008
    Inventors: Andrew Cragg, Blair Walker, John Perl, Michael Jones, George Greene, George Wallace, Richard Greff
  • Catheter system and method for injection of a liquid embolic composition and a solidification agent
    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
  • Catheter system and method for injection of a liquid embolic composition and a solidification agent
    Publication number: 20030225391
    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: Application
    Filed: February 11, 2003
    Publication date: December 4, 2003
    Applicant: Micro Therapeutics, Inc.
    Inventors: Andrew H. Cragg, Richard J. Greff, Robert Pecor, John Perl, Blair Walker, George Wallace
  • Catheter system and method for injection of a liquid embolic composition and a solidification agent
    Patent number: 6558367
    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: May 19, 2000
    Date of Patent: May 6, 2003
    Assignee: Micro Therapeutics, Inc.
    Inventors: Andrew H. Cragg, Richard J. Greff, Robert Pecor, John Perl, Blair Walker, George Wallace
  • Device and method for controlling injection of liquid embolic composition
    Publication number: 20030040733
    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: September 13, 2002
    Publication date: February 27, 2003
    Inventors: Andrew H. Cragg, Blair D. Walker, John Perl, Michael Jones, George Robert Greene, George Wallace, Richard J. Greff
  • Catheter system and method for injection of a liquid embolic composition and a solidification agent
    Patent number: 6146373
    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: October 17, 1997
    Date of Patent: November 14, 2000
    Assignee: Micro Therapeutics, Inc.
    Inventors: Andrew H. Cragg, Richard J. Greff, Robert Pecor, John Perl, Blair Walker, George Wallace