NANO-OTOLOGIC PROTECTIVE EQUIPMENT FOR IMPACT NOISE TOXICITY AND/OR BLAST OVERPRESSURE EXPOSURE
An apparatus preventing hearing loss having a body made of soft compliant material having first and second ends and a channel extending therethrough, an acoustically limp material adjacent one end of the body with the acoustically limp material having a hole therein aligned with the channel extendin...
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Main Authors | , , , , , |
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Format | Patent |
Language | English French German |
Published |
30.11.2011
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Subjects | |
Online Access | Get full text |
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Summary: | An apparatus preventing hearing loss having a body made of soft compliant material having first and second ends and a channel extending therethrough, an acoustically limp material adjacent one end of the body with the acoustically limp material having a hole therein aligned with the channel extending through the body, component film, or other structure covering or sealing the opening in the acoustically limp material. The film may be a high-strength polymer less than 10 micrometers thick. A plurality of channels may extend through the body and a plurality of corresponding holes may be provided in the acoustically limp material. The film covers or seals the holes in the acoustically limp material. The film may behave like a flap to close in response to high energy sound waves. The flap shuts from the high intensity shock wave. The body may have shape to fit in an ear canal. |
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Bibliography: | Application Number: EP20070710043 |