IMPROVED RETAINING DEVICE Russian patent published in 2017 - IPC A61M16/04 

FIELD: medicine.

SUBSTANCE: invention relates to medical equipment. The airway device comprises an airway tube with the first end and the second end, the first end of the airway tube is surrounded by a laryngeal cuff and the laryngeal cuff includes a rear dorsal portion, a front face portion and a tip portion, the front face portion of the laryngeal cuff has a shape suitable to form an anatomical fit over the laryngeal inlet of the patient - a person or an animal, and to form a seal with the laryngeal inlet of the patient, wherein the tip portion includes an annular sealing bead. The annular sealing bead is adapted to be secured by a wedge in the top part of the patient's (a person or an animal) esophagus. The annular sealing bead is provided for improved sealing of the laryngeal cuff tipin the top part of the patient's (a person or an animal) esophagus. The annular sealing bead is preferably made of soft plastic polymer or other material.

EFFECT: annular sealing bead allows better sealing with greater variability of the upper esophageal area anatomical characteristics.

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