FIELD: medical engineering. SUBSTANCE: device has thermoplastic tube having round opening in its middle part containing tracheotomic cannula. Dilator unit is designed as hollow cylinder from semi-permeable membrane. It is mounted around upper part of the tube and fixed with two polyamide threads. The threads are fixed near the upper tube edge and in the inferior tube part near the horizontal bend of the tracheotomic cannula. Thread fixes the device as catheter with a clamp for introducing liquid into dilator cavity. EFFECT: reduced risk of traumatic injuries of larynx and trachea. 1 dwg
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