Ear Impressions

Discussion in 'General Chat' started by frohike, Dec 17, 2013.

tinnitus forum
    1. frohike
      Approved

      frohike Member Benefactor

      Tinnitus Since:
      06/2009
      Cause of Tinnitus:
      Acoustic trauma
      Ear impressions are a mold of the ear canal that is used to make custom earplugs.
      These plugs are used to block or filter sound, and fit your ear so well, that you can swim without losing them. Check the ears of musician on stage and you'll see them.

      Etymotic is a popular brand that provides earplugs with noise reduction from 9dB up to 25. Some of them even have circuitry that amplifies or reduces the volume to keep it on a safe range.

      musicians_3.jpg Swim plugs.jpg

      Searching youtube for “ear impressions” outputs a dozen videos of the procedure:
      Westone Ear Impressions Demo


      They put a blocking foam or cottom on your earplug attached to a thread, then they push the impression material inside the ear canal. If the “otoblock”, as they call it, doesn't completely block the ear canal, the pressure of teh impression material can perforate the membrane and invade deep inside the ear, causing a devastating effect, and possibly a bonus chemical damange due to absorption of the material through the skin. But of course, the idea is for the block to block, so none of this happens.

      This is a guideline for taking ear impressions (PDF) from the College Of Audiologists & Speech-Language Pathologists Of Ontario

      This is a live seminar: Preventing Medical Errors for Audiologists - 2011 Update Look for the section “Ear Impressions”. Some words of caution on it:
      I collected this information because I'm thinking on getting an ear impression myself. So here it is, in case someone else is curious.
       
      • Informative Informative x 1

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