Patent ID: 8821155

Claim:
A traction device comprising: an engaging assembly engaging with a mouthpiece to be attached to a maxilla inside a mouth of a human body; and a support assembly supporting the engaging assembly in contact with a face of the human body, wherein the engaging assembly pulls the mouthpiece in an anterior direction of the human body, the support assembly comprising: an upper contact body configured to be in contact with a forehead of the face; and a lower contact body configured to be in contact with an area of the face below the forehead and above a mandible, the engaging assembly comprising: a forward engaging piece to pull the mouthpiece in the anterior direction of the human body; and a rotational engaging piece to apply torque to the mouthpiece being pulled in the anterior direction of the human body to rotate the mouthpiece in a rotational direction that moves a posterior end, which is an end of the mouthpiece in a posterior direction of the human body inside the mouth, in a superior direction of the human body and an anterior end, which is an end of the mouthpiece in the anterior direction of the human body inside the mouth, in an inferior direction of the human body.