METHOD FOR PLASTY OF VAST DEFECTS IN TYMPANIC MEMBRANE Russian patent published in 2005 - IPC

FIELD: medicine, ORL-surgery.

SUBSTANCE: beforehand one should form a carcass out of two transplants of flat bone of human fetal cranial arch at width up to 1 mm, thickness of 0.1 mm each of them that correspond to the width of osseous part of patient's auditory canal. At first, transplants should be fixed in mutually perpendicular position in two points with laser biological welding (LBW) performed with distal part light guide's edge of semiconductor laser "ATKUS-15" in impulse mode at impulse duration being 450 msec and output power of laser radiation being 8.5 W. Then the transplant should be fixed to osseous walls of auditory canal due to LBW in similar mode in four points. Then one should apply a flap of human fetal dura mater onto osseous transplants that completely cover perforation foramen of tympanic membrane which should be, also, fixed with LBW technique to the rest of tympanic membrane. The innovation suggested enables to exclude transplant's shift and keep sounding through tympanic membrane.

EFFECT: higher efficiency of plasty.

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