Patent ID: 8151799

Claim:
A mouthpiece breathing device of one piece unitary construction for intra-oral use molded to conform to a user's upper dentition comprising: a molded mouthpiece member of generally U-shaped configuration curved in an arch to conform to a user's upper dentition, the mouthpiece member having at least one U-shaped wall with a receptacle to receive said user's upper dentition, the at least one U-shaped wall having a depth greater than a vertical dimension of said user's upper dentition; a pair of fixed nasal passage expansion members integral with and disposed along opposed sides of said mouthpiece member are positioned to extend into a muco-labial and muco-buccal vestibule of said user distally from the lateral extent of the nares to the zygoma and engage the muscles of facial expression whereby upon insertion into the mouth of a user, walls of the nasal passages and nares are enlarged.