PROTECTOR-DILATOR FOR THE TREATMENT AND PREVENTION OF RESTENOSIS IN PATIENTS WITH CICATRICIAL STENOSIS OF THE FOLDED LARYNX AND A METHOD FOR PROSTHETICS Russian patent published in 2022 - IPC A61F2/20 A61F2/82 A61M16/04 A61B17/02 A61B17/24 

FIELD: medicine.

SUBSTANCE: inventions group relates to medicine, namely to otorhinolaryngology, and can be used to treat patients after surgery for cicatricial stenosis of the fold and subglottis of the larynx of various etiologies. Protector-dilator for the treatment and prevention of restenosis in patients with cicatricial stenosis of the folded larynx is designed for installation in the superior lead of a standard T-shaped silicone tracheostomy tube, made of elastic material, solid. The upper part of the protector-dilator 15 mm high has the shape of a truncated cone, which in cross section has the form of an isosceles triangle with rounded corners and corresponds to the anatomical dimensions of the glottis of a particular patient, and its lower part 5 mm high has the shape of a cylinder. The largest diameter of the upper part of the protector-dilator is equal to the outer diameter of the upper lead of the T-shaped tracheostomy tube, and the diameter of the lower part of the protector-dilator is equal to the inner diameter of the upper lead of the T-shaped tracheostomy tube into which it is fixed. The method for prosthetics in the treatment and prevention of restenosis in patients with cicatricial stenosis of the fold of the larynx is characterized by the fact that, depending on the anatomical features of the patient, the upper lead of the T-shaped silicone tracheostomy tube is cut in such a way that the above-described protector-dilator is located in the fold of the larynx. Then, the protector-dilator is inserted with the lower cylindrical part into the upper lead of the T-shaped tracheostomy tube so that the lower cylindrical part is completely inserted into the tube. Next, a T-tube with a protector-dilator is inserted through the tracheostomy and placed in the laryngotracheal lumen so that the vocal folds are separated.

EFFECT: reliable maintenance of the consistency of the lumen of the fold section of the larynx in the postoperative period, a significant reduction in traumatization of the mucous membrane of the vocal folds by the sharp edges of the T-shaped tracheostomy tube, this leads to a reduction in the number of postoperative complications, to a decrease in the duration of inpatient treatment and rehabilitation time, and also prevents restenosis of the folded larynx and subsequent repeated surgical interventions.

7 cl, 6 dwg, 2 ex