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A device comprises a tube and mouthpiece with a fixed bandage. The tube is made curvilinear with a curvature radius of 200-250 mm and with ratio between lumen and length 1:10-12, at that mouthpiece is made with bandages and placed on a tube with movement and fixation possibility.
UA4697088A1989-04-041989-04-04Device for introduction of bougie into esophagus
UA11898A1
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