|Extraction with a dormia basket
A usefull device for stone
the retrieval basket made of 4 parallel,
extendable wires. Stones can be trapped
inbetween, the basket is then cautiously
extracted with itīs content via the papilla.
Stones bigger than 1,5 to 2,0 cm should
be shattered to pieces before extraction.
Extraction of stones bigger
than 2 cm
without prior lithotripsy may induce
ruptures of the papillaīs roof or the duodenal wall. Peripapillary inflammation
andīmay also result in a wide, yawning
bile duct orifice. This in return facilitates
germ ascension. The figure depicts a
peripapillary inflammation and a
yawning papillotomy after extraction of
a big stone with a retrieval basket.