Patents by Inventor John M. Leventhal

John M. Leventhal 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).

  • Techniques for dilating obstructed lumens and other luminal procedures
    Patent number: 5108414
    Abstract: A balloon catheter for dilating an obstructed lumen in the human body has a specially shaped balloon which, when inflated, has a proximal end cone having a relatively small cone angle and a distal end cone with a relatively large cone angle. The catheter is used in a procedure in which it is inserted into the obstructed lumen, with the ballon in the deflated condition and with the balloon advanced through and past the obstructed region. The balloon then is inflated and then is drawn back through the constricted region to dilate it progressively by the proximal cone of the balloon. Also disclosed are improved techniques relating to use of balloon catheters in the treatment of fallopian tube disorders including procedures for treating hydrosalpinx, for tubal manipulation and for GIFT procedures.
    Type: Grant
    Filed: June 26, 1991
    Date of Patent: April 28, 1992
    Assignee: C. R. Bard, Inc.
    Inventors: Joyce A. Enderle, Andy H. Levine, John M. Leventhal
  • Balloon catheter and techniques for dilating obstructed lumens and other luminal procedures
    Patent number: 5078725
    Abstract: A balloon catheter for dilating an obstructed lumen in the human body has a specially shaped balloon which, when inflated, has a proximal end cone having a relatively small cone angle and a distal end cone with a relatively large cone angle. The catheter is used in a procedure in which it is inserted into the obstructed lumen, with the balloon in the deflated condition and with the balloon advanced through and past the obstructed region. The balloon then is inflated and then is drawn back through the constricted region to dilate it progressively by the proximal cone of the balloon. Also disclosed are improved techniques relating to use of balloon catheters in the treatment of fallopian tube disorders including procedures for treating hydrosalpinx, for tubal manipulation and for GIFT procedures.
    Type: Grant
    Filed: November 9, 1989
    Date of Patent: January 7, 1992
    Assignee: C. R. Bard, Inc.
    Inventors: Joyce A. Enderle, Andy H. Levine, John M. Leventhal