1. What is it ?

This is a means to bypass the oral cavity with a tube.



https://qmplus.qmul.ac.uk/pluginfile.php/1993279/mod_book/chapter/108135/34%20Understanding%20Tracheostomy.pdf



Peter Hardee did a lovely talk on tracheostomy - which you may wish to access here







Operative Video 


If you would like to see how one is done -  this is only for interest - please see below