The Patil-Syracuse mask is a variation of the standard anesthetic facemask. Its features are similar to those of the endoscopy mask and it works based on the same principle, i.e. it has an additional port with a soft silicone membrane to accommodate endotracheal tubes or different endoscopic devices. The port can be closed off with a plastic cap. The Patil-Syracuse mask is re-usable and can be autoclaved.
The port is designed to create a seal around an endotracheal tube or bronchoscope, allowing asleep oral fiberoptic intubation (or other endoscopic techniques such as bronchoscopy without intubation, gastroscopy, or transesophageal echcardiography) to be performed while administering bag-mask ventilation. This technique is described here.