Patents Represented by Law Firm Zarley, KcKee, Thomte, Voorhees & Sease
  • Catheter for use in the surgical correction of a nasolacrimal duct obstruction
    Patent number: 5062831
    Abstract: A catheter for use in the surgical correction of a nasolacrimal duct obstruction comprising an elongated shank portion having a enlarged portions at the upper and lower ends thereof. When the catheter is properly placed during the surgical procedure, the enlarged portions of the catheter prevent longitudinal displacement thereof and prevents the "scarring over" of the nasolacrimal duct.
    Type: Grant
    Filed: April 18, 1990
    Date of Patent: November 5, 1991
    Inventor: John D. Griffiths