Clinical efficacy and mechanism study of mid-frequency anti-snoring device in treating moderate obstructive sleep apnea-hypopnea syndrome

Figure 1 Proper method of wearing the mid-frequency anti-snoring device. A: Ear-worn style; B: Patch style.

Figure 2 Computed tomography scan. A-C: Computed tomography (CT) scan representation and cross-sectional area measurement of the soft palate posterior airway in wakefulness, snoring, and during treatment with the middle-frequency anti-snoring device; D-F: CT scan representation and cross-sectional area measurements of the retrolingual airway area in wakefulness, snoring, and during treatment with the middle-frequency anti-snoring device.