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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