Oral-lever resistance exercise device
An oral exercise device that is portable, that has adjustable resistance and that allows the tongue to perform isotonic exercises in an environment that closely approximates the natural configuration of the tongue and the mouth to improve disorders of speech and swallowing.
1. An oral exercise device comprising:
an upper lever having a proximal end and a distal end;
a lower lever also having a proximal end and a distal end;
a rigid stabilizer through the upper lever and the lower lever, whereby the stabilizer prevents the upper lever and the lower lever from misaligning;
a pivot between the upper lever and the lower lever, whereby the proximal ends of the upper lever and the lower lever move between a mutually separated position and a mutually adjacent position within a human mouth between a hard palate and a tongue, and whereby the distal ends of the upper lever and the lower lever likewise move between a mutually separated position and a mutually adjacent position in a manner opposite the proximal ends outside the human mouth;
a tongue adaptor stably fastened to the lower lever, wherein the tongue adaptor conforms to a subject's tongue and causes the subject to actuate the oral exercise device with only the subject's tongue;
bite blocks extending distally from and perpendicularly to the proximal end of said upper lever, whereby the bite blocks engage with the user's teeth to cause the subject to actuate the oral exercise device with only the subject's tongue; and
at least one resistance element providing an isotonic resistance over a range of motion as the proximal ends move from the mutually separated position to the mutually adjacent position.
2. An oral exercise device as recited in claim 1 , wherein the resistance element permits the distal ends of the upper lever and the lower lever to move to the mutually adjacent position to provide a predetermined maximum force that may be applied by the tongue.
3. An oral exercise device as recited in claim 1 , wherein the resistance element is outside the mouth.
4. An oral exercise device as recited in claim 1 , wherein the resistance element is adjustable.
5. An oral exercise device as recited in claim 1 , wherein the resistance element is at least one elastic band.
6. An oral exercise device as recited in claim 1 , wherein the resistance element is at least one spring.
7. An oral exercise device as recited in claim 1 , further comprising a notch or a groove around the distal ends of the upper lever and the lower lever and sized to receive the resistance element.
8. An oral exercise device as recited in claim 1 , further comprising at least one notch or at least one groove successively spaced around the distal ends of the upper lever and the lower lever and sized to receive the resistance element.
9. An oral exercise device as recited in claim 1 , further comprising a pivot receiver located on a superior surface of the lower lever when the pivot is located on an inferior surface of the upper lever.
10. An oral exercise device as recited in claim 1 , further comprising a pivot receiver located on the inferior surface of the upper lever when the pivot is located on the superior surface of the lower lever.
11. An oral exercise device as recited in claim 9 , wherein the pivot is a cylinder and the pivot receiver is a socket, such that the pivot and pivot receiver snap together.
12. An oral exercise device as recited in claim 1 , wherein the pivot is located midway on either the upper lever or the lower lever and the distal ends of the upper lever and the lower lever are outside the mouth.
13. An oral exercise device as recited in claim 1 , wherein the upper lever and the lower lever are manufactured from a plastic.
14. An oral exercise device as recited in claim 1 , further comprising a feedback element on either the upper lever or the lower lever, whereby the feedback element alerts a subject when the upper lever and the lower lever are in the mutually adjacent position.
15. An oral exercise device as recited in claim 1 , further comprising a series of oral exercise devices, wherein the resistance element of each oral exercise device gradually increases in resistance.