Abstract: Described herein are various embodiments of a valve that may be opened and closed using a thixotropic or “stress yield” material, or other material that temporarily changes phase upon application of energy to the material. More particularly, some embodiments may include a valve that is opened and closed using a granular gel that is a temporary phase change material.

Abstract: An intubating neonatal laryngeal mask airway includes an elongated body having a palate side and a lingual side. A cuff is coupled to an elongated body opposite a distal end of the elongated body. The cuff includes a concavity positioned opposite the palate side of the elongated body and between a guide sleeve and an esophageal plug. At least one ventilation lumen traverses the elongated body from the distal end to the cuff. The at least one ventilation lumen is in fluid communication with at least one ventilation port. A guide channel is longitudinally positioned on the lingual side of the elongated body. The guide channel is operatively aligned to a guide sleeve. An imaging device port is positioned within the concavity.