Method and catheter for dilatation of the lacrimal system
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United States of America Patent
Stats
-
Dec 8, 1992
Issued Date -
N/A
app pub date -
Jun 25, 1990
filing date -
Sep 11, 1989
priority date (Note) -
Expired
status (Latency Note)
Importance
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.
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Cited Art Landscape
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