Indwelling stent and method of use
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United States of America Patent
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-
Oct 1, 1991
Grant Date -
N/A
app pub date -
Apr 4, 1990
filing date -
Apr 4, 1990
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A stent 21 is disclosed having a pigtail 33 at its distal end 35 and having a flap 23 acting as a barb at its proximal end 29. Stent 21 includes a catheter body 31 having at least one lumen 43 and having drainage holes 37, 39. The stent may be made of radiopaque polyethylene. The pigtail 33 prevents proximal migration of catheter body 31 while allowing spring action to accommodate variations in length, while flap 23 prevents entire distal migration while being radially retractable to facilitate insertion. An alternative embodiment is disclosed having multiple flaps 25, 27 acting as a barb. A method of use is also disclosed.
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