| 摘要 |
FIELD: medicine.SUBSTANCE: simultaneous formation of tunnel and installation of lacoprosthesis are carried out. For this purpose disposable intravenous catheter of 20G calibre with guide needle inside, preliminarily modernised, namely by cutting off vanes case, is used. Remaining flexible catheter in form of cylindrical tube is used as lacoprosthesis with placement of guide needle inside it and providing 1.5-2.0 mm protrusion of needle beyond distal end of lacoprosthesis during work. Tunnel formation is realised by puncturing soft tissues with guide needle with access to lachrymal bone. After that, lachrymal bone is punctured under endoscopic endonasal control with further movement of needle with lacoprosthesis into nasal cavity. After that, guide needle is brought out, lacoprosthesis is lowered into common nasal meatus until proximal end of lacoprosthesis, formed in form of "hat" is installed into zone of internal angle of optic fissure.EFFECT: method makes it possible to create reliably working lachrymal passage with application of permanent lacoprosthesis.3 cl, 3 dwg, 1 ex |
