FIELD: medical equipment. SUBSTANCE: apparatus has bowl-shaped retainer and outer and inner restricting petals provided with openings. Petals are positioned on connecting member for displacement along it and for fixation thereon. Bowl-shaped retainer has arc-shaped section in longitudinal axial section plane of connecting member in zone of junction with retainer, with said plane being arranged in symmetry with respect to planes of retainer petals, and parabolic section in axial section plane perpendicular to above mentioned plane. EFFECT: improved comfort, increased prophylactic and treating effect due to optimal static and dynamic loading of tongue. 15 cl, 6 dwg
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Authors
Dates
2003-04-20—Published
2001-04-02—Filed