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Flexible PCB for Medical Application

Flexible PCB for Medical Application introducing

The hearing-assist device is the typical medical device.
Most of them just provide basic range and resolution.
A medical device company utilizes a flexible PCB to change this situation.

Use it’s flexible bending ability to design as important components of a new class of hearing-assist device.
And the new class of hearing assist can provide amazing resolution.
That’s the reason why we discuss Flexible PCB for Medical Application in this post.

The working theory of flexible PCB assist hearing device

A small photoreceptor and micro-actuator are placed inside the ear canal, with the micro -actuator in contact with the eardrum.
Outside the ear, the working theory of flexible PCB assist hearing is same with narmal.
Use a microphone captures sound and a digital signal processor converts it to digital signals to be sent into ear.

But here’s where things get exciting: the digital signals actuate an infrared laser located inside the ear canal, which in turn excite the photoreceptor, turning the digitized audio into a small current which drives the micro-actuator, causing the eardrum to vibrate.

Flex PCB design permitted the engineers to mount the microphone, DSP, and battery in a tiny, compact package that fits behind the ear, and which allows the laser to provide both power and signal to the passive photoreceptor and micro-actuator.

While this is currently still an investigational device, the technology is promising and exciting.