FIELD: medicine.
SUBSTANCE: device consists of a flexible guide catheter with metric markings on the outer surface and a tapered front portion. The catheter is installed in a semicircular metal trough with a bend. A truncated cone bushing is rigidly connected to the rear part of the trough. An elliptical ring is rigidly fixed to the outer surface of the bushing. The catheter is fixed to the groove by bushings. An adapter is installed to the rear part of the catheter for endoscope connection.
EFFECT: safety of optical inspection of the eustachian tube and a possibility of treatment of eustachian tube patency disorders.
1 dwg
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