Probes and
Dilators
Probes are used to gain entry
to small (openings) to get information about their depth, direction and size;
they are usually blunt ended.
Dilators are used to
investigate the patency and dilate hollow tubular passages.
Infection
trauma and surgical accidents can result in healing by second intention in
hollow organs this result in strictures.
In
the past these strictures have been treated by dilatation.
The
dilators have been made of metal or gum elastic. The agreed gauge has been
utilized to ensure uniform size in all the sets.
This
also helps the surgeon to choose the correct sized dilator. As dilatations are
done gradually over a period of the time, the surgeon records the degree of
dilatation achieved so as to start at the next level on the subsequent
attendance.
Corticosteroids
can also be used to minimum edema and fibrosis.
The
dilators in use are:
• Lister (Fig. 8.106A)
• Clutton (Fig. 8.106B)
• Tuner-Warwick (Fig. 8.107)
• Canny Ryall bougie (Fig. 8.108)
• Jackson esophageal bougie (Fig. 8.109)
• Neoplex (Fig. 8.110)
• Bake’s bile duct (Fig. 8.111).
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