Test procedures and material quality for acoustic aids

Components that remain in direct contact with human tissue for hours require uncompromising biocompatibility. In the precision manufacturing of hearing systems and hygiene instruments, medical-grade silicone, robust ABS polymer, and surgical stainless steel are primarily used. Every batch undergoes rigorous test cycles for tensile strength, skin tolerance, and resistance to perspiration.

Specific material properties in the ear canal

A product's durability is determined by the choice of raw materials:

• Medical-grade silicone: It is completely free of plasticizers and reliably retains its elasticity even with daily cleaning using lukewarm water.
• ABS polymer: This thermoplastic polymer forms the housing for electronic assemblies; it maintains its shape and shields internal circuitry from impact.
• Stainless steel: Its smooth, non-porous surface prevents bacterial adhesion and allows effortless disinfection.

Consistent energy supply through zinc-air cells

Zinc-air cells are the proven standard for powering miniature amplifiers. After removing the protective tab, atmospheric oxygen reacts with the zinc powder inside to generate a stable operating voltage. Our laboratory tests verify that the housing seals effectively prevent electrolytes from drying out prematurely.