METHOD FOR ENDOSCOPIC ENDONASAL RHINOANTROSTOMY WITH HAMULUS ACCESS, USING LASER TECHNOLOGY Russian patent published in 2022 - IPC A61B17/00 A61B17/24 A61N5/67 

FIELD: medicine; otorhinolaryngology.

SUBSTANCE: at the first stage, under control by an endoscope, after medialization of the middle nasal conch, a point on the hamulus is identified, which is formed by intersection of two lines. At the same time, the first line corresponds to the lower edge of the hamulus, the second line is perpendicular to the first line and is drawn upward from the highest point of attachment of the lower nasal conch. At the second stage, using Ho-YAG laser, fiber of which is passed through a guide tool, under control by the endoscope, tissues are vaporized at the point of the hamulus, determined at the first stage, with the formation of a hole with a diameter of no more than 0.5×0.4 cm. Then, vaporization is performed along the edge of the natural maxillary sinus anastomosis in the rear downward direction to sizes of the prepared anastomosis – rhinoantrostoma – with a diameter of no more than 0.5×0.8 cm. Pathological tissue is removed, sinus is washed with an antiseptic solution.

EFFECT: method allows for the reduction in traumatism of operative intervention by preservation of anatomical structures of osteomeatal complex, reduction in blood loss, reduction in the risk of intraoperative and postoperative complications.

3 cl, 1 dwg, 2 ex