A disposable anesthesia breathing circuit - expandable is a medical device used during general anesthesia to deliver oxygen, anesthetic gases, and/or other breathing gases to the patient and to remove exhaled carbon dioxide from the patient's body. It is called "expandable" because it has the ability to expand and contract with the patient's breathing.
The breathing circuit consists of a series of tubes and connectors that are disposable, meaning they are used only once and then discarded. It typically includes an inspiratory limb, a Y-piece or wye connector, an expiratory limb, and a patient connector.
The expandable aspect of the circuit is achieved by using corrugated tubing in the inspiratory and expiratory limbs. These corrugations allow the tubing to expand and contract with the patient's breathing, which helps to reduce the work of breathing and increase patient comfort.
Disposable anesthesia breathing circuits are designed to be easy to use, reduce the risk of cross-contamination, and minimize the need for cleaning and sterilization. They are commonly used in hospitals, surgery centers, and other medical facilities where general anesthesia is administered.