WO2001045457A2 - Implantable hearing aid 1.1 - Google Patents
Implantable hearing aid 1.1 Download PDFInfo
- Publication number
- WO2001045457A2 WO2001045457A2 PCT/GB2000/004701 GB0004701W WO0145457A2 WO 2001045457 A2 WO2001045457 A2 WO 2001045457A2 GB 0004701 W GB0004701 W GB 0004701W WO 0145457 A2 WO0145457 A2 WO 0145457A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- exciter
- bone
- hearing aid
- implanted
- hearing
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R25/00—Deaf-aid sets, i.e. electro-acoustic or electro-mechanical hearing aids; Electric tinnitus maskers providing an auditory perception
- H04R25/60—Mounting or interconnection of hearing aid parts, e.g. inside tips, housings or to ossicles
- H04R25/604—Mounting or interconnection of hearing aid parts, e.g. inside tips, housings or to ossicles of acoustic or vibrational transducers
- H04R25/606—Mounting or interconnection of hearing aid parts, e.g. inside tips, housings or to ossicles of acoustic or vibrational transducers acting directly on the eardrum, the ossicles or the skull, e.g. mastoid, tooth, maxillary or mandibular bone, or mechanically stimulating the cochlea, e.g. at the oval window
Definitions
- This implantable hearing aid uses a modified electro-dynamic exciter ' as the implunted transducer to cause complex vibration of the temporal bone and subsequent vibration of the endolymph and perilymph within the cochlea. This in turn causes vibration of the basilar membrane which is necessary for the generation of the nerve impulses which result in hearing..
- the exciter is surgically implanted into the temporal bone (the part of the skull in which the inner ear is located) under local or general anaesthetic.
- An electro-dynamic exciter is modified by encasement in a casing made of titaniun or other biocompatible material and is secured in place by drilling a hole in the surface of t le mastoid bone, which would fit the exciter securely.
- Bone cement or osseointegration 2 (a p rocess whereby titanium is anchored securely to bone as new bone develops on the surface of the titanium) is used to fix the baseplate of the exciter firmly.
- Type 1 (Drawing 2) A microphone, battery, amplifier, output limiter volume conti ol and on / off switch are externally located (these could be incorporated into either a ear- worn device lookir.g similar to a conventional hearing aid, or a body worn device allowing greater component weight). There is a direct connection to the transducer via an external coupling loc ated in the skin behind the ear. This would be suitable for patients with severe/profound hear ng loss, as higher power would be achieved from an externally worn battery. This would also be the first development stage as the external components would be easily adjusted or altered. Description
- the transducer, battery and a radiofrequency receiver are implanted.
- a microphone, amplifier, battery, output limiter, volume control, on/off switch and radiofrequency transmitter are located externally. This suitable for both moderate and severe hearing loss.
- Chronic ear infection with discharge may be made worse by the earpiece of an external aid, and this discharge may interfere with the functioning of the ai l.
- the hearing loss may be too severe to gain benefit from a conventional ⁇ id.
- a conductive loss is when there is a problem with the passage of sound through the ear canal and/or middle ear, and the cochlea (organ of hearing) works normally.
- This type cf hearing loss is normally suitable for amplification with a conventional hearing aid, although th ⁇ problem with the appearance of the hearing aid and associated stigma may apply.
- Sensorineural hearing loss is more common. In sensorineural loss the middle ear i- normal but the problem lies in the cochlea, auditory nerve or the brain itself. In most cases the cochlea itself is the site of the problem. In these cases the hearing loss may be more severe and he quality of sound Description perceived after amplification is often poorer. It is mainly (but not exclusively) for cases of sensorineural loss that implantable hearing aids are targeted.
- Bone anchored hearing aid This is similar to a conventional hearing aid but sou id is transmitted via an implanted screw, which is inserted into the temporal bone and fixed by osseointegration.
- the screw is connected to an external mounting, to which the other components ara attached.
- Cochlear Implants are only used in cases of profound hearing loss where the patient has no useful hearing even with the most powerful hearing aids.
- An array of elect odes is inserted into the cochlea itself, allowing direct electrical stimulation of the 'hair cells' in the inner ear.
- Cochlear implants are very successful in cases of profound hearing loss, although extensive rehabilitation is necessary.
- Cochlear implants are only suitable in a very small nuirber of cases and are very expensive, as well as causing permanent damage to the inner ear.
- AZIMA HENRY GB
- JARVIS EDWARD GB
- ROBERTS MARTIN GB
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP00985499A EP1240806A2 (en) | 1999-12-16 | 2000-12-08 | Implantable hearing aid 1.1 |
AU21915/01A AU2191501A (en) | 1999-12-16 | 2000-12-08 | Implantable hearing aid 1.1 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB9929631.1 | 1999-12-16 | ||
GB9929631A GB2360663A (en) | 1999-12-16 | 1999-12-16 | Implantable hearing aid |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2001045457A2 true WO2001045457A2 (en) | 2001-06-21 |
WO2001045457A3 WO2001045457A3 (en) | 2001-12-27 |
Family
ID=10866363
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/GB2000/004701 WO2001045457A2 (en) | 1999-12-16 | 2000-12-08 | Implantable hearing aid 1.1 |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP1240806A2 (en) |
AU (1) | AU2191501A (en) |
GB (1) | GB2360663A (en) |
WO (1) | WO2001045457A2 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2003081946A2 (en) * | 2002-03-21 | 2003-10-02 | Bernhard Armin Dipl-Ing | Acoustic sensor for an implantable hearing aid |
US8241201B2 (en) | 2008-02-20 | 2012-08-14 | Osseofon Ab | Implantable transducer |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4612915A (en) * | 1985-05-23 | 1986-09-23 | Xomed, Inc. | Direct bone conduction hearing aid device |
US5498226A (en) * | 1990-03-05 | 1996-03-12 | Lenkauskas; Edmundas | Totally implanted hearing device |
WO1999031933A1 (en) * | 1997-12-16 | 1999-06-24 | Symphonix Devices, Inc. | Implantable microphone having improved sensitivity and frequency response |
EP0936840A1 (en) * | 1998-02-16 | 1999-08-18 | Daniel F. àWengen | Implantable hearing aid |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5800336A (en) * | 1993-07-01 | 1998-09-01 | Symphonix Devices, Inc. | Advanced designs of floating mass transducers |
US5554096A (en) * | 1993-07-01 | 1996-09-10 | Symphonix | Implantable electromagnetic hearing transducer |
GB9701983D0 (en) * | 1997-01-31 | 1997-03-19 | New Transducers Ltd | Electro-dynamic exciter |
-
1999
- 1999-12-16 GB GB9929631A patent/GB2360663A/en not_active Withdrawn
-
2000
- 2000-12-08 EP EP00985499A patent/EP1240806A2/en not_active Withdrawn
- 2000-12-08 AU AU21915/01A patent/AU2191501A/en not_active Abandoned
- 2000-12-08 WO PCT/GB2000/004701 patent/WO2001045457A2/en not_active Application Discontinuation
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4612915A (en) * | 1985-05-23 | 1986-09-23 | Xomed, Inc. | Direct bone conduction hearing aid device |
US5498226A (en) * | 1990-03-05 | 1996-03-12 | Lenkauskas; Edmundas | Totally implanted hearing device |
WO1999031933A1 (en) * | 1997-12-16 | 1999-06-24 | Symphonix Devices, Inc. | Implantable microphone having improved sensitivity and frequency response |
EP0936840A1 (en) * | 1998-02-16 | 1999-08-18 | Daniel F. àWengen | Implantable hearing aid |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2003081946A2 (en) * | 2002-03-21 | 2003-10-02 | Bernhard Armin Dipl-Ing | Acoustic sensor for an implantable hearing aid |
WO2003081946A3 (en) * | 2002-03-21 | 2004-01-08 | Armin Dipl-Ing Bernhard | Acoustic sensor for an implantable hearing aid |
US8241201B2 (en) | 2008-02-20 | 2012-08-14 | Osseofon Ab | Implantable transducer |
Also Published As
Publication number | Publication date |
---|---|
AU2191501A (en) | 2001-06-25 |
GB2360663A (en) | 2001-09-26 |
WO2001045457A3 (en) | 2001-12-27 |
GB9929631D0 (en) | 2000-02-09 |
EP1240806A2 (en) | 2002-09-18 |
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