Breathing circuit bag, reusable

Breathing circuit bags (reusable) are flexible elastomeric reservoirs that store and deliver breathing gas during mechanical or manual ventilation. They are integrated into anesthesia or ventilator circuits to assist with gas flow, pressure regulation, and patient respiration, often acting as a safety mechanism to limit maximum inspiratory pressure.

These reusable devices are typically classified based on their intended use and design, often requiring compliance with standards like ISO for performance and safety. They are commonly supplied as part of a larger breathing circuit system, with specifications such as volume capacity (e.g., 0.5L) and material composition (e.g., silicone) influencing their regulatory and clinical application.