Patent ID: 6413231
Filing Date: 2002-07-02
Classification: A61H,A63B

Abstract:
A device to assist in the therapy of a patient who has limited jaw opening, the device comprising:a frame having two opposite side members, the side members having adjustable lengths, means to adjust the lengths of the side members concurrently, each side member having a first end and an opposite second end, an upper mouthpiece and a lower mouthpiece connected between the respective first ends of the side members of the frame, the upper mouthpiece and the lower mouthpiece having a distance therebetween wherein manually adjusting the length of the side members of the frame exerts tension on a respective concentric planetary rotational surface, the respective concentric planetary rotational surfaces being connected to one of the mouthpieces, thereby changing the distance between the upper mouthpiece and the lower mouthpiece, said means to adjust the length of the side members concurrently, also adjusting the distance between the upper mouthpiece and the lower mouthpiece by a predetermined amount, wherein, when the mouthpieces are received in the mouth of the patient, the jaw opening of the patient is adjustable to a predetermined distance.