APPLIED RADIOLOGICAL ANATOMY

Detailed explanation-1: -Bain circuit, the coaxial modification of a Mapleson D system, was introduced by Bain and Spoerel6 in 1972, and it has become the universal circuit used for resuscitation, administration of anesthesia, and transportation of sick patients.

Detailed explanation-2: -The Bain circuit is a “coaxial” Mapleson D-the same components, but the fresh gas flow tubing is directed within the inspiratory limb, with fresh gas entering the circuit near the mask. Fresh gas flow requirements are similar to other NRB circuits.

Detailed explanation-3: -The Mapleson systems are the breathing circuits, also known as flow controlled breathing systems or carbon dioxide washout circuits because they depend upon fresh gas flow for washing out CO2.

Detailed explanation-4: -Bain coaxial system The system is a coaxial T-piece system designed like a Mapleson D system, with the expiratory valve and reservoir bag distal from the patient (Fig. 3.7). The system is 1800 cm of 22 mm diameter corrugated plastic tubing, through which runs a small-bore tube which delivers fresh gas to the patient.