Structural Modification In Supraglottic Airway Device

The proposed A/Z modification of a supraglottic airway (SGA) incorporates an opening in the SGA body that enables access to the endotracheal tube (ETT) through the body of the SGA without the need of using an exchange catheter, thus enabling an ETT to move in the body of the SGA and convert a supraglottic to endotracheal ventilation. In its original form an adaptor made from same material currently used in the endotracheal tubes can make ventilation through the proposed airway device possible in exactly the same manner of a conventional SGA currently used. This adapter also known as the R-piece can be replaced with an ETT. The modification also allows placement of SGA over an existing ETT to convert and endotracheal (ET) to supraglottic (SG) mode of ventilation without the need to use an exchange catheter.

Inclusion Criteria: 1. Adult patients 2. scheduled for a general anesthesia procedure with ETT \& muscle relaxation Exclusion Criteria: 1. Patients who are not able to consent 2. Non English Speaking 3. History of difficult airway 4. Physical exam of airway which suggests difficulty in airway management or need to use special equipment 5. BMI \>35 6. Gastroesophageal reflux disease 7. Anesthetic plan other than general anesthesia 8. Emergency procedures