Method and apparatus for placing tear duct drain tubes

Details Method and apparatus for placing tear duct drain tubes Method and apparatus for placing tear duct drain tubes

1994-05-02

1996-03-26

Pellegrino, Stephen C.

Surgery

Miscellaneous

Methods

606108, A61B 1900

Patent

active

055012329

ABSTRACT:
A method of putting a two-duct probe into place in the tear ducts using a hollow cylindrical cannula which is closed at its distal end, with an oblong opening being formed in the vicinity of the distal end. A slot extending proximally from the opening allows a narrowed portion of a guide filament attached to each end of a two-duct probe to pass in order to disengage the cannula from the filament. The cannula is removed from the tear duct and the ends of the guide filaments are each pulled into the nose to place the probe into the tear ducts.

REFERENCES:
patent: 4305395 (1981-12-01), Martinez
patent: 4660546 (1987-04-01), Herrick et al.
patent: 4968296 (1990-11-01), Ritch et al.
patent: 5178604 (1993-01-01), Baerveldt et al.

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