Thuduchim's nasal speculum

Thudichum's nasal speculum is commonly used to visualize the nasal cavity. It is usually held in the non dominant hand leaving the dominant hand free for manipulation.

This instrument has two flanges that can be inserted into the nostril during anterior rhinoscopy. The flanges widen to open up the nasal cavity offering a better view of intra nasal structures.

This instrument was designed and developed by John Louis William Thudichum a German born physician and Biochemist who settled down in London. His main contribution is towards the development of neurochemistry.

Uses of Thudichum's speculum:

• In anterior rhinoscopy
• Foreign body removal from the nose
• Peroperative nasal packing
• In septal surgeries to make incision

The instrument is held in the non dominant hand at its bend with the thumb and index finger. The middle and ring fingers are placed on either side of the limbs of the speculum. When the fingers are brought close to each other then the flanges of the speculum also come close together. The instrument is ideally inserted in a closed position. When the middle and ring fingers are held apart the flanges will go apart widening the nasal cavity. It is not possible to examine the vestibule of the nose using this speculum. It can be done just by lifting up the tip of the nose.