Hearing instrument with an integral injection-molding casing

A hearing instrument has an integral injection-molding casing. The hearing instrument fixes the internal components in an integral casing that is simple in design, production, and assembly; requires few components; and is easy to handle. Accordingly the hearing instrument contains an integral casing and a frame arranged within the casing. The casing has an assembly opening through which the frame is pushed into the casing. Additionally, the casing has a fixation opening oriented perpendicular to the insertion direction, which fixation opening interacts with a fixation device arranged on the frame in order to fix the frame in the casing. This provides a simple fixation mechanism. The fixation opening can be applied as a bore after the production of the casing, and so the casing has no undercuts and can therefore be produced in an injection-molding method. The fixation device can be embodied as a bolt. The bolt can be integrally molded onto the frame. The bolt can be inserted into the fixation opening by a spring force. In one embodiment, a microphone to be assembled after the frame has been inserted into the casing serves as a bolt.