Intended use: clinical assistant gastroscopy is used to prevent unintended occlusion.

Characteristic：

1. Smooth surface, avoid the damage of endoscope and oral cavity.

2. Streamlined design, improve the wearing comfort of patients and effectively protect the patient and endoscopic equipment from damage.

3. The opening can be passed through the endoscope and fingers to facilitate finger assisted endoscopy.

4. Adjustable strap design, increasing safety and convenience.