METHOD FOR PLASTY OF PERFORATION FORAMEN OF TYMPANIC MEMBRANE Russian patent published in 2005 - IPC

FIELD: medicine, ORL-surgery.

SUBSTANCE: one should apply a thin layer of 10%-Syntomycin emulsion onto the edges of perforation foramen, then one should apply a transplant out of a flat bone of human fetal cranial arch. The transplant mentioned should be of 1 mm width, 0.1 mm thickness and its length being 2 mm higher against the size of perforation foramen. Fixation should be fulfilled due to laser biological welding in two points to the edges of perforation foramen with distal part of light guide's edge in impulse mode. One should put a fragment out of fetal dura mater above an osseous transplant being 2 mm higher against perforation foramen. Distal part of light guide's edge of semiconductor laser should be put on the transplant perpendicularly its surface. Welding should be carried out by contact technique in impulse mode at impulse duration being 600-700 msec in 6-8 points. The method enables to achieve transplant's tight fixation, exclude its shift and excessive coagulation of tympanic membrane in the site of light guide's edge application.

EFFECT: higher efficiency of plasty.

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