Method and catheter for dilatation of the lacrimal system

Details Method and catheter for dilatation of the lacrimal system Method and catheter for dilatation of the lacrimal system

1990-06-25

1992-12-08

Rosenbaum, C. Fred

Surgery

Means for introducing or removing material from body for...

Material introduced into and removed from body through...

604 96, 606192, 128658, A61M 3100

Patent

active

051693860

ABSTRACT:
A dilation catheter having an inflatable member and an element for retaining a curved shape, and a method of using same to restore patency to an obstructed portion of the lacrimal system. The catheter is inserted into the lacrimal system and the inflatable member is positioned in the obstructed portion. Insertion of the catheter is facilitated by mechanically imparting a curved shape to a distal portion of the catheter. The inflatable member is inflated to dilate the obstructed portion to restore patency to the lacrimal system. Preferably, the catheter includes one or more visually perceivable markers having a known spaced relationship to one of the ends of the inflatable member. Positioning of the inflatable member is assisted by aligning the marker relative to an opening into the lacrimal system.

REFERENCES:
patent: 4771776 (1988-09-01), Powell et al.
patent: 4777951 (1988-10-01), Cribier et al.
patent: 4920980 (1990-05-01), Jackowski
patent: 4921478 (1990-05-01), Solano et al.
patent: 4943275 (1990-07-01), Stricker
patent: 5021045 (1991-06-01), Buckberg et al.

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