CAMISHA – ensuring hearing aids’ accuracy
CAMISHA (Computer Assisted Manufacturing of Individual Shells for Hearing Aids) uses advanced laser stereo lithography and the latest polymer technologies to produce a superior hearing aid with a better, more comfortable fit than ever.
CAMISHA was developed by Widex and is the leading method of manufacturing hearing aids and earmoulds today.
By laser scanning ear impressions to generate 60,000 data points and then manufacturing them to a tolerance of 0.02mm, CAMISHA is cited as the most consistently accurate method of manufacturing hearing aids yet devised.
CAMISHA laser manufacturing makes the smallest hearing aids available
Making your hearing aid
Making a hearing aid is an amazing process. The process requires a combination of extremely high technology, co-operation between our factory and your dispenser and finally, a particularly personal touch
STAGE 1:
Your Audiologist takes an impression of your ear canal using a flexible silicone material.
STAGE 2:
The impressions are sent to us for scanning or are scanned by the dispenser on site, using the latest 3D scanning technology. Your fitting notes are sent to add any extra information.
STAGE 3:
Our engineers use the scan of your impression to build a picture of the housing of your hearing aid. The housing is a precise fit in your ear and is cropped to make it as small as possible.
STAGE 4:
The engineer begins to lay out the tiny components inside your hearing aid on screen, working to build the smallest hearing aid. The engineer also takes great care to ensure there is enough space inside to let heat dissipate and prevent electrical interference.
STAGE 5:
The completed shell design is checked and loaded to our Viper rapid manufacturing machine to create your shell. The Viper runs for 8 hours, using highly accurate lasers to solidify precise points in a bath of liquid polymer. The finished housing is thousands of such points joined together.
STAGE 6:
Your housing is removed from the machine, polished and reunited with your individual build notes.
STAGE 7:
The housing returns to the manufacturing area so that all components can be put in place inside.
STAGE 8:
Your hearing aid is completely tested before dispatch.
STAGE 9:
Your dispenser completes the fitting process with you, ensuring the hearing aid matches your precise personal needs and desires.