Lister Urethral Bougie 1 EG (11inch) Thomson Walker It is inserted into the

It is inserted into the nostrils to open the nasal passages and provide a clear view of the area to the surgeon

3mm is the size of the hole created by the instrument

The dilator is made of solid metal and has a 12mm dilator diameter and a 19mm base diameter

4 millimeters long

Lister Urethral Bougie 1 EG (11inch) Thomson Walker It is inserted into theA Lister Urethral Bougie is a medical instrument used to dilate the urethra during certain urological procedures. It is inserted into the urethra and used to stretch the urethral walls and make the urethra wider. It is typically used during procedures such as urethroplasty, urethral stricture repair, and urethral dilation.