DE8422728U1 - HEARING DEVICE TO BE WEARED IN THE HEARING ROOM FOR HEARING OR HARD DISABLED - Google Patents

Description

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Hearing aid to be worn in the ear canal
for the hearing impaired or the hearing impaired

The invention relates to a hearing aid to be worn in the ear canal for the hard of hearing and hearing impaired, with microphone, amplifier, battery compartment, On / Off switch, telephone and volume control, as well a connection to an ear adapter.

Devices of this type have long been known.

Devices worn in the ear canal are currently only available as so-called "custom" ear canal devices manufactured, OaQ means, individually for a specific person. The required parts are built into a specially made earmold shell. However, this solution has some serious shortcomings:

The one entrusted with the adjustment and therefore also responsible for it Hearing aid acousticians cannot build such a device themselves, they can he has to have it built by a company specializing in such devices. The manufacturer does not always succeed in that to interpret the acoustic data of such a device as required by the acoustician. As a result, this leads to poor adaptation of the Device. Furthermore, the acoustician has no way of comparing Make measurements with other devices in advance, as required by law. Further problems arise when a Adjustments made to the changed conditions of the hearing impaired must become. Ear canal devices can be so far

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only in small bandwidths by means of actuators or mostly even do not vary in their acoustic data after completion. Big problems also arise when the otoplastic no longer fits or repairs have to be carried out on the device. At all too often the whole device has to be thrown away in such a case.

\ These disadvantages can be overcome by the proposed

Avoid invention. The core idea is to build the hearing aid modularly in a way in which all the assemblies are easily accessible and can be easily replaced. Soldering points are not used at all, if possible.

The invention is characterized by a modular structure, consisting of a step widening from the inside to the outside Adapter piece, a telephone that can be inserted into a recess at the lower end of the adapter piece, one directly about it can be used in an enlarged opening of the adapter piece Battery compartment to hold the battery and one above the battery attachable amplifier unit with microphone, as well as contacts for electrically conductive connections between the individual parts, Une a detachable connection between the amplifier part and the battery compartment or the battery compartment and the adapter piece.

By exchanging modules and using a special, The acoustician can now carry out comparative measurements, known per se, try-out earmolds. Repairs can be carried out very easily be carried out by replacing the defective modules. It is also easy to make a new earmold. the Modules are reused in the process.

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Further refinements of the invention are set out in the further claims refer to.

The invention will now be combined with the aid of an exemplary embodiment explained with the accompanying figures.

In the drawings shows: Fig. 1 shows the various modules in a purely schematic manner

of the new hearing aid;

2a schematically shows the arrangement of the parts in the amplifier part; Fig. 2b is a view of the amplifier part from below with Be

fastening of the amplifier part to the battery compartment;

2c shows a schematic sectional view of the amplifier part; 3a shows a further embodiment of the amplifier unit; 3b shows a view of this further amplifier unit

from underneath;

4a schematically shows the battery part from above; 4b shows the battery compartment from the side; Fig .5a the adapter piece from above and Fig. 5b the adapter piece schematically in section.

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The device essentially consists of 6 parts, which are purely schematic in Fig. I are shown:

An amplifier unit 1 contains a microphone and an amplifier. Possibly A telecoil, control dial, on / off switch and a volume control may also be included. A battery 2 supplies the necessary energy.

A battery compartment 3 takes the battery 2 and establishes the connection between the amplifier unit 1 and the adapter piece 4. In addition, a receiver 5 is bolded as a result.

The adapter piece 4 receives the receiver 5. To protect against penetrating Cerumen it is closed with a removable cerumen catcher 4a. The receiver 5 with storage is pushed into the adapter piece 4. An individual otoplastic 6 protects the device wearer from acoustic feedback. It is fixed with the adapter piece 4 tied together.

The connection of the individual parts to one another is - 'by plugging them into one another manufactured. Only the otoplastic 6 is glued to the adapter piece 4.

The individual parts are now explained in more detail:

2a shows the Verrürkeroinheit 1 with a microphone 7, a sound inlet cap 8, an amplifier 9, a telephone coil 10, and some peripheral components 11. The same unit is shown in Fig. 2b shown from below. Here you can see those embedded in the edge Bulges 12. These serve to accommodate the contacts 18, which will be explained later. Contact pads 13 recessed in the wall

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establish a conductive connection with the contacts 18. A contact plate 14 is electrically conductive on one pole of the battery 2 on. In one example this could be the negative pole of the battery. The connection of the amplifier 9 to the PIm-PoI then takes place via a line 19 after a contact 18 and further to one of the contact strips 13. From this there is then a conductive connection to the amplifier. The other two connections are used to transmit signals From the amplifier to the listener Via path 13 - 18-20. The position of the contacts 18 and the bulges 12 is preferred to be arranged so that parts 1 and 3 can only be put together in a distinctive way. This out * The example is designed for a push-pull output stage. With ver | When using a single-ended output stage, one signal line is sufficient. In this In this case, the contact surfaces 19 and 20 must also be placed differently.

Fig. 2c shows again the amplifier unit 1, this time from the side.

Another embodiment of the amplifier unit 1 is shown in FIGS. 3a and 3b. Here the amplifier unit 1 is on top with a rotatable one Cover 15 of known design closed, which as a combined

Realized via grinder 16 and resistance tracks 17. \ On / off switch and volume control is used. This function is ^{! Ί}

By exchanging this module (amplifier unit 1) you can easily Way, very large variations in gain, frequency response and other properties can be made. The amplifier unit is either via a bayonet lock (over 18 - 12 - 13) connected to the battery compartment 3, or it is screwed onto the battery compartment 3, for example. For this only the contacts or

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Contact strips can be changed accordingly. In the simplest case

let one. the amplifier unit 1 via a suitable construction

II of the edge of the battery compartment 3 simply snap open.

fj The battery compartment 3 is an independent unit and has contacts

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j 18 as well as conductor tracks with contact plates 19 connected to them

and 20 provided. It is either bayonet in adapter piece 4

lock, locked by screwing or snapping. In Fig. 4a, this battery compartment 3 is shown from above. The cams 21 are used to lock in the adapter piece 4 (bayonet lock). In Fig. 4b it can be seen how the contact plates 19 and 20 rest on the connections of the receiver 5 and an electrically conductive connection produce.

The adapter piece 4 is a wearing part and is only used for receiving of the body 5 and the battery compartment 3. It comes with the individual The earmold is firmly connected and is thrown away when the earmold is changed. A cerumen trap 4a can be attached to its lower end will. In Fig. 4a and 4b, the part 4 is in the "plan view and shown in side view. The opening 23 is used to accommodate the receiver, while the opening 24 holds the battery compartment 3. This is locked with the cams 21 in the corresponding recesses 22 of the adapter piece.

With a suitable choice of the handset 5, very large variations are now possible can be achieved both in output level and in frequency range.

The invention thus made a really versatile one

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Hearing aids created on which not only comparative measurements can be carried out, but also individually, e.g. to a changing appearance of the hearing impairment or Hearing impairment can be adjusted by replacing the amplifier part. In such a case another one can also be used Use the phone with a different frequency response.

Claims (10)

1. Hearing aid to be worn in the ear canal for the hard of hearing or hearing impaired with microphone, amplifier, telephone, battery, on / off switch _and volume control as well as a connection to an ear fitting, characterized by an individually detachable, modular structure, consisting of one from the inside to the outside adapter piece (4) widening in steps, a telephone (5) which can be inserted into a recess (23) at the lower end of the adapter piece, a battery compartment (3) directly above it in an enlarged opening (24) of the adapter piece (4) to accommodate a battery (2) and an amplifier unit that can be placed above the battery (1) with microphone (7) and contacts (13, lö, 19, 20) for electrically conductive connections between the individual Parts, and a releasable connection between the amplifier part (1) and the battery compartment (3) or the battery compartment (3) and the adapter piece (4). 2. Hearing aid according to claim 1, characterized in that the modular structure as a whole has a coaxial arrangement of the individual Has modules in such a way that a telephone (.5) with a circular cross-section in a hollow cylindrical recess (23) is inserted that a battery compartment (3) with a circular ring Cross-section in the hollow cylindrical extension (24) of the adapter part (4) is inserted that a verse Turk part (1) with a circular cross-section on the battery compartment -2- -2- is set, and that the battery compartment with the adapter piece and the amplifier part (1) with the battery compartment (3) releasably connect is. 3. Hearing aid according to claim 1 or 2, characterized in that the amplifier part (1) bulges on its underside (12) for receiving contacts (18) and a contact plate (14) for contact with the battery (2), and on Has circumferentially arranged contact strips (13). 4. Hearing aid according to claim 1 or 2, characterized in that that the battery compartment (3) carries contact strips (18) on its outside in vertically arranged grooves, which contact strips (19, 20) with the poles of the battery (3) in contact are destined to come. 5. Hearing aid according to claim 3 and 4, characterized in that the bulges (12) at the same time part of a according to Art a bayonet lock acting releasable connection between the amplifier part and the battery compartment. 6. Hearing aid according to claim A _1, characterized in that the battery compartment (3) on the lower edge of the housing has cams (21), and that in the inner wall of the extension (24) of the adapter (4) corresponding grooves (22) for a lock according to Art a bayonet lock are arranged between the battery compartment (3) and the adapter part. -3- - ¹ Ii- '"' 7. Hearing aid according to claim 4, characterized in that on the underside of the battery compartment parts of the cables (19, 20) are designed as contact plates for contacting the telephone (5). 8. Hearing aid according to one of claims 1 to 7, characterized / that the interior of the adapter part (4) merges at its lower end into a narrow sound channel. 9. Hearing aid according to claim 8, characterized in that on A cerium collector (4a) is detachably attached to the lower end of the adapter part (4). 10. Hearing aid according to claim 1 or 2, characterized in that that the cover (15) he amplifier part (1) in .sich known Way is rotatably arranged on the housing of the amplifier part and one or more grinders on its underside (16) carries that in connection with corresponding circular arcs running resistance tracks (17) serve as the actuator for the hearing aid, and that the cover (15) at the same time with a On / off switch is combined. -4-