A - Human Necessities – 63 – B
Patent
A - Human Necessities
63
B
A63B 71/10 (2006.01) A61C 5/14 (2006.01) A63B 71/08 (2006.01)
Patent
CA 2396153
The present invention relates to a bilayer mouthguard fabricated from a high impact thermoplastic polymer blend having the ability to absorb, attenuate, and dissipate shock forces and a method of fabricating a mouthguard. The present invention utilizes a polymer blend comprising ethylene vinyl acetate and a thermoplastic urethane. The bilayer mouthguard has a U-shape base and is defined by inner lingual and outer labial walls, a channel for receiving the upper jaw and teeth, cushion pads laying within the U-shape base, and in certain designs a transition support portion extending forward from the posterior cushion pads connecting with an anterior impact brace that extends into the outer labial wall.
Brett Daniel J.
Geiger Michael C.
Blake Cassels & Graydon Llp
Sportsguard Laboratories Inc.
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