Detachable filter member for hearing aid device
A replaceable filter member for a hearing aid device is disclosed. The filter member comprising an unit with a housing configured to be inserted into the ear canal of a user of the hearing aid device. The filter member is configured to prevent ear wax from entering an opening in the housing. The filter member is a one-piece body that is configured to cover several openings in the unit while being attached to the unit.
1. A detachable filter member for a hearing aid device, the hearing aid device comprising a housing of a speaker unit configured to be inserted into the ear canal of a user of the hearing aid device, the filter member being configured to prevent ear wax from entering an opening in the housing, the filter member comprising:
a one-piece body that is configured to cover the opening in the housing while attached to the housing of the speaker unit; and
an attachment member configured to be attached to a proximal end of the housing and thereby provide a detachable attachment of the detachable filter member to the housing of the speaker unit, wherein
the filter member forms a flexible sock-like member that is formed by woven or knitted material that is configured to tightly surround the housing of the speaker unit.
2. The filter member according to claim 1 , wherein
the opening in the housing is one of one or more openings along a length of the housing and is disposed at a distal end of the housing,
another opening of the one or more openings is at the proximal end of the housing, and
the filter member is configured to cover all openings in the housing while the filter member is attached to the housing.
3. The filter member according to claim 1 , further comprising:
a flexible member configured to allow for attachment of the filter member to the housing and to allow for detachment of the filter member from the housing.
4. The filter member according to claim 1 , wherein
the filter member comprises an attachment member or a holding member configured to be attached to the housing and provide a detachable attachment of the filter member to the housing.
5. The filter member according to claim 4 , wherein
the attachment member or the holding member is configured to be attached to the proximal end of the housing and provide a detachable attachment of the filter member to the housing.
6. The filter member according to claim 1 , wherein
the filter member comprises a cover member configured to be attached to the housing and provide a detachable attachment of the filter member.
7. The filter member according to claim 6 , wherein
the cover member includes a base member that extends substantially parallel to a longitudinal axis of the housing, and
one or more openings are provided in the base member so that the openings allow for sound propagation or ventilation through the openings.
8. The filter member according to claim 1 , further comprising:
a first lattice; and
a second lattice of different structure than the first lattice.
9. The filter member according to claim 8 , wherein
the first lattice is arranged in such a way that it covers one or more openings of the housing,
the opening in the housing at the distal end is a sound opening, and
the second lattice covers the sound opening when the filter member is attached.
10. The filter member according to claim 9 , wherein the first lattice is a fine mesh lattice and the second lattice is coarser mesh lattice than the first lattice.
11. The filter member according to claim 1 , wherein
the opening in the housing is at a distal end of the housing,
one or more additional openings are along a length of the housing,
one proximal opening is at the proximal end of the housing, and
the filter member is configured to cover all openings in the housing while the filter member is attached to the housing.
12. A hearing aid, comprising:
a housing of a speaker unit to be positioned in an ear canal of a user, the housing having a distal end to be positioned near the ear drum and a proximal end to be positioned near the opening of the ear canal;
a detachable filter member attached to the housing, the filter member being configured to prevent ear wax from entering an opening in the housing, the filter member being a one-piece body that is configured to cover an opening in the housing while attached to the housing of the speaker unit, wherein
the filter member includes an attachment member configured to be attached to the proximal end of the housing and thereby provide a detachable attachment of the detachable filter member to the housing of the speaker unit, wherein
the filter member forms a flexible sock-like member that is formed by woven or knitted material that is configured to tightly surround the housing of the speaker unit.
13. The hearing aid according to claim 12 , wherein
the hearing aid is a receiver-in-the-ear type hearing aid or an in-the-ear-canal type hearing aid.