The waist and back corrector is an auxiliary device used to adjust and improve the posture of the waist and back. They are typically designed as wearable devices aimed at providing support and correcting poor waist and back postures, thereby reducing pain, improving posture, preventing injury, and providing support during the rehabilitation process.
The following are the possible features and functions of waist and back correctors:

1. Posture correction: designed to help adjust and improve the posture of the waist and back, reducing the negative impact of poor posture on the body.
2. Support: Provides additional support to help stabilize the spine, reduce pressure on the waist and back, and alleviate pain and discomfort.
3. Material selection: Soft but sturdy materials such as elastic materials, nylon cloth, leather, etc. are usually used to ensure comfort and stability.
4. Adjustability: Most waist and back correctors have adjustable functions that can be adjusted according to personal needs to ensure fit and comfort.
5. Comfort: When designing, patient comfort is usually considered, and designs such as breathable materials and soft linings may be used to reduce discomfort during wearing.
6. Medical applications: Used for the treatment of poor posture in the lower back, scoliosis, spinal diseases, as well as support and protection during the rehabilitation process.
7. Instructions for use: Provide detailed instructions on how to correctly wear, adjust, and use the orthodontic device to ensure that patients can use it correctly and achieve the best results.

Waist and back braces play an important role in improving posture, relieving pain, and preventing injuries in the lower back. However, when selecting and using braces, it is recommended to follow the guidance of medical professionals to ensure compliance with individual needs and conditions. Meanwhile, the correct wearing and usage methods are also one of the key factors to ensure the effectiveness of orthodontic appliances.