METHOD OF PROBING WHEN WASHING MAXILLARY SINUS THROUGH NATURAL ANASTOMOSIS ACCORDING TO LUNEV Russian patent published in 2024 - IPC A61B17/24 A61B1/233 

FIELD: medicine.

SUBSTANCE: invention refers to medicine, namely to otorhinolaryngology. Nasal mucosa is anemised with the help of a decongestant in the form of a spray. After 3–5 minutes required for development of decongestant action, local anaesthesia of common nasal passage and middle passage is performed by spraying of 10% solution of lidocaine in the form of aerosol. Under the control of rhinoscope of 0 degrees, an infiltration anaesthesia is performed with 1 ml of 4% articaine with a carpule syringe with a needle with a length of at least 40 mm in the following points: the front end of the middle nasal concha, the attachment point of the middle nasal concha, the nasal septum opposite the middle nasal concha. After 1–2 minutes required for the development of the anaesthetic action, a blunt end of a double-sided raspatory is introduced into the nasal cavity under the control of rhinoscope of 0 degrees, with the back side of which the middle nasal concha is moved medially, pressing it to the nasal septum. Under the control of rhinoscope of 0 degrees, a working end of a curved cannula is introduced into the middle nasal passage, the bend of which is adapted for introduction into the maxillary sinus, with its concave surface, the cannula should bend around the uncinate process. Cannula is brought by the free edge of the uncinate process, and the uncinate process is pulled back, visually controlling the process with the help of rhinoscope of 0 degrees. When visualizing the anastomosis or if the process is sufficiently displaced, when it does not obstruct the cannula advance, the cannula tip is introduced into the sinus fistula. Rhinoscope is removed. Holding the cannula inserted into the sinus by hand, a syringe with a volume of at least 20 ml with 0.05% aqueous solution of chlorhexidine or 0.05% aqueous solution of potassium permanganate is connected to the pavilion of the cannula, and the sinus is washed through the cannula.

EFFECT: method allows performing probing when washing the maxillary sinus through a natural anastomosis with a minimum risk of tissue injury, as well as reduce the patient's discomfort during the operation.

1 cl, 2 ex