Abstract: An oral device that includes an upper tray assembly and a lower tray assembly. The upper tray assembly includes an upper moldable component and an upper bracket, while the lower tray assembly includes a lower moldable component and a lower bracket. Additionally, the oral device has an end point positioned away from the lip side when the patient uses it. An advantage of this disclosure is that the upper bracket has at least one downward-facing lower protrusion near the end point, while the lower bracket includes at least one upward-facing upper protrusion near the end point. The disclosure meticulously defines various parameters and positions for the upper and lower protrusions, ensuring the oral device is better suited to meet the patient's needs.

Abstract: A respiratory mask configured to adapt and comfortably seal according to the facial features of different users. The respiratory mask includes a support chamber, a cushioning part, and a comfort layer. The support chamber has curved sidewalls and two circular openings of varying sizes. The cushioning part includes of an elastic body and a sponge body. The fixed side of the elastic body is connected to the support chamber. The sponge body has a curved side and a connecting side that connects to the elastic body. The first side of the comfort layer is configured to make partial contact with the user's face, while the second side of the comfort layer connects to the sponge body. Both the cushioning part and the comfort layer are configured to deform, collaboratively ensuring a tight seal around the user's face.

Abstract: A mandibular advancement device with an adjustment part, including an upper tray assembly, a lower tray assembly, and an adjustment part. The upper tray assembly includes an upper frame and an upper moldable component; the lower tray assembly includes a lower frame and a lower moldable component. At least two different materials are used in the manufacture of the upper tray assembly and/or the lower tray assembly. The adjustment part is configured to connect the upper tray assembly and the lower tray assembly by a snap-fit, as well as to adjust the position of the lower tray assembly relative to the upper tray assembly. Specifically, the snap-fit includes at least one protrusion on one side of the upper tray assembly and/or the lower tray assembly, and the protrusion is configured to compressively connect the upper frame and the lower frame.

Abstract: An oral appliance, which is a convenient, cost-effective, and comfortable oral appliance for users, and includes an upper tray assembly and a lower tray assembly. The upper tray assembly includes an upper moldable component and an upper frame, while the lower tray assembly includes a lower moldable component and a lower frame. The upper and lower moldable components are made from a moldable material that can deform when heated. The upper and lower frames do not deform when heated to the temperature required for deforming the upper and lower moldable components. The upper moldable component is configured to be detachably connected to the upper frame, and the lower moldable component is configured to be detachably connected to the lower frame.