Category: General Body Positioners

Chin Switch Harness

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Chin Switch Harness
------- "DO IT YOURSELF" ENTRY ------- A thermoplastic chin switch holder worn on the chest. The switch is held on to the harness with Velcro and can be easily removed.

PURPOSE: To stabilize a switch for chin activation.

MATERIALS USED: low temperature thermoplastic material, -18 inches x 18 inches sheet, pressure-sensitive Velcro hook, 1 inch x 16 inch, pressure-sensitive Velcro loop material, 1 inch x 6 inches, two 12 inches lengths of Beta pile or Velcro loop tape (non-adhesive), 1 inch wide
TOOLS: Splinting pan and water, heat gun, heavy duty scissors.

1. Draw and cut out a butterfly shape from the thermoplastic material to form the harness, using the measurement guidelines from the diagram (please contact the designer for the illustration).
2. Heat the material in the splinting pan and water until its soft, let cool until it is comfortable to the touch, and from the harness to the student, folding the extensions over the shoulder.
3. Attach one 2 inch long pressure-sensitive Velcro hook strip to the end of each of the four extensions. Attach beta pile or Velcro loop straps in an “X” formation across the back connecting the 4 extensions.
4.Cut out a strip of thermoplastic material to make the upside-down “L” bracket. This flat strip should be wide enough to hold the switch and approximately 8 inch in length. Heat the strip and form an inverted “L” shape. Attach this to the harness with pressure sensitive Velcro as indicated in diagram.
5. Mount the switch to the top of the inverted “L” shape using pressure-sensitive Velcro.
OPTION: If less stability is required, omit the bottom extensions and attach one strap across the back of the neck, connecting both top extensions.
Author: Sheryl Zelten, OTR/L, Occupational Therapist, while working at Cotting School.


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