Murphy's eye

This is a joke right. Right?

Actually, it's a good question. If I remember correctly, it provides another area for ventilation, in case one gets occluded with a mucous plug. I am pulling that out of the deep depth of memory and didn't look it up. I'm sure it is addressed in some new anesthesia techniques book.
Yoga.

Dorsch and Dorsch, Understanding Anesthesia Equipment, Fourth edition, page 562:

....shows a hole through the tube wall on the side opposite to the bevel. this is known as a Murphy eye, and a tube with this feature is called a Murphy or Murphy-type tube. The purpose of the eye is to provide an alternate pathway for gas flow if the bevel is occluded. ...Some tubes have a second eye on the bevel side. This may provide a measure of safety should the tube accidentally advance into the right mainstem bronchus.

PG

Passin Gas,
Thanks for looking it up. It makes me realize how much anesthesia information I have stuffed into this brain for 44 years. There is a lot to know, but it is even better to know where to find the answer.
YogaCRNA

Sorry RN-RD, my cynicism ran away with me. A CRNA early on in my training told me that the eye was to ventilate the right upper lobe in case of right mainstem intubation. I knew just enough to nod wisely while believing he was full of it.

Now for the $25 000 QUESTION.

"What does RAE stand for concerning RAE tubes?"

(Please insert Jepopardy theme music here)