Chapter 4 Notes: Anesthestic Machine

Open System
“open cone”, “open drop” of anesthetic; control of anesthetic was crude; anesthetist is unable to protect the airway

Endotracheal Tube
a flexible tube placed in the trachea of an anesthetized patient used to transfer anesthetic gases directly from the anesthetic machine to the patient’s lungs, bypassing the oral and nasal cavities, pharynx, and larynx

Murphy Tubes
have a beveled head and a side hole called the “Murphy eye” and may or may not have a cuff