METHOD FOR PREVENTION OF POSTERIOR NARIS RESTENOSIS AFTER SURGICAL CORRECTION OF THEIR CONGENITAL ATRESIA Russian patent published in 2020 - IPC A61M29/00 A61M39/00 A61F2/82 A61B17/00 

FIELD: medicine.

SUBSTANCE: invention refers to medicine, namely otorhinolaryngology. Protector is placed within the formed posterior naris lumen. Protector used is an elongate flexible tubular part from plastic, which has head and tail parts. Head part has expansion in form of funnel, part of which is cut parallel to axial plane of tubular part at a distance exceeding its diameter. Protector is introduced, starting from tail part, through oral cavity, oropharynx, nasopharynx in half of nose on side of former atresia in such a way that expansion in form of funnel is located in area of formed posterior naris, cut part of funnel is located laterally, and part of funnel with preserved wall is medially in area of resected vomer. Further, in the transverse direction through the diametrical opening of the tail part, spaced from the expanded part of the protector at a distance equal to the distance from the formed posterior naris to the vestibule of the nose, a flexible tube with a thread is made in its lumen. End of the tail part of the protector protruding from the nose cavity is cut off from the diametrical hole by 2–3 mm. Ends of the suture are tied around the patient's head, providing fixation of the protector funnel in the formed posterior naris area for 2–3 months. On completion of the treatment, the tube with the suture is cut off from the protector and unfolded so that the cut part of the funnel is in the area of the vomer, and the protector is removed. In bilateral atresia, the posterior naris protector is delivered in each half of the nose.

EFFECT: method provides higher reliability of protector fixation in nasal cavity in any form of congenital atrophy posterior naris in children of different ages, reducing intraoperative injuries, providing possibility of protector removal from nasal cavity without traumatization of mucosa without general anaesthesia.

4 cl, 2 ex, 6 dwg