Abstract: For data exchange with a programmable hearing aid worn in the auditory canal, an electrical line is provided that contains leads in electrical contact with a circuit in the hearing aid and which is mechanically attached to the hearing aid so as to serve as an extractor for the hearing aid. The free end of the electrical line carries a signal receptor, such as a plug or socket or a wireless receiver with a gripping surface.

Abstract: For retention and sound-damping sealing of members introducible into the auditory canal, such as hearing aid housings, otoplastics or ear adapters, an annularly fashioned seal and retainer element can be plugged onto the member and when the member is inserted into the auditory canal, the retainer element fits itself against the walls of the auditory canal and seals the annular gap between the outside contour of the member and the auditory canal in sound-damping fashion.

Abstract: An in-the-ear hearing aid comprises a housing having a face plate that has a first opening for a battery compartment and a second opening connected to the first opening. A lamina is constructed as a carrier for a hearing aid component and is introduced into this second opening, and the lamina is secured in this second opening, even when the battery is removed from the battery compartment, and is, nonetheless, removable from the hearing aid without exertion of great force. To accomplish these goals, a holding arrangement is formed in a portion of the edges of the lamina and the second opening.

Abstract: A hearing aid having at least one additional contact is provided for the electrical connection of an external programing device to at least one programmable hearing aid part. In order to minimize requirements for the additional contact, individual contacts which are electrically insulated from one another are arranged within a battery compartment in the region of a surface lying opposite a battery pole. At least one of the individual contacts can then be electrically connected to a programmable hearing aid part.

Abstract: An apparatus for closing an opening of a hearing aid or an ear adaptor for a hearing aid, particularly openings such as sound entry openings, sound exit openings and aeration openings utilizes a micro-porous membrane of an anti-adhesive material which is introduced into the respective opening. Preferably, the membrane is polytetrafluoroethylene material.

Abstract: In an arrangement to prevent the intrusion of foreign matter into a transducer which extends with a projection provided with an opening into a sound channel of a hearing aid, a reduced need for space as well as simpler construction, compared with the state of the art, are achieved by means of the following characterizing features: A membrane made of pore-free material is provided, which has at least one bore for the passage of sound of from a few hundredths to a few tenths of a millimeter diameter, and in which the wall thickness of the membrane is small with respect to the diameter of the bore.

Abstract: A rotary shaft is provided with at least two pins at its one end, these two pins fitting into two holes of the cover. The other end of the rotary shaft carries a polygonal screw pin for screwing on the adaptor.

Abstract: On the basis of a hollow die including over-shell and a cap drawn onto a proximal connector of the die, an ear impression is produced directly in the auditory canal that is filled with ear impression material. Displaced ear impression material thereby flows through a channel in the cap into the hollow interior of the die. A negative is produced from the ear impression together with a screwed-on fixing star, this negative containing impressions of the points of the fixing star. After injection of otoplastic material and repositioning of a fixing star with a die, over-shell and cap into the fixing depressions, a finished otoplastic shell can then be produced from the negative.

Abstract: A sound transducer, particularly an earphone, is buttoned into a sound opening of an in-the-ear hearing aid housing by means of an elastic hose part seated on a sound connector of the sound transducer. The elastic hose part is slightly pre-stressed in longitudinal direction and the sound transducer is provided with an elastic abutment that elastically compensates the prestress.

Abstract: The housing of the hearing aid comprises a distal, bead-like head part having a planar face on which an arched face plate is seated and comprises a proximal, thinner tail part. The angle .alpha. between the normal of the planar face and the longitudinal axis of the tail part lies in the range of 135.degree. through 142.degree., preferably at 140.degree., in a first longitudinal plane through the housing and a corresponding angle .beta. in a second, perpendicular longitudinal plane through the housing lies in the range from 12.degree. through 17.degree., preferably at 14.degree..

Abstract: In an exemplary embodiment, a first shell has the contours of an individually fitted ear adapter and the second shell has a carrier plate penetrated by openings for adjustment elements of the hearing aid structure. In known devices, the covering of the cavity of the ear adapter has proven unfavorable both cosmetically as well as mechanically. In order to alleviate this, the disclosure provides that the inside space of a cover plate be provided with an internally disposed cavity for the carrier plate whose outside dimensions are smaller than the smallest dimensions to be expected for an individually fitted ear adapter, and that the second shell is significantly larger, so that, after application to the first shell, laterally projecting parts are cut off. The disclosed structure is particularly suited for employment given in-ear hearing aids.