A bushing (19) for an injection mould device is intended to permit an improvement in product quality. In the case of the injection mould device, a plunger (17) is movable in the bushing (19), in order to exert pressure on polymer material (18) and transfer the polymer material into at least one cavity. The bushing (19) has at least one venting hole (22) for eliminating entrapped air during injection moulding. <IMAGE>
