US3712962A - Implantable piezoelectric hearing aid - Google Patents

Implantable piezoelectric hearing aid Download PDF

Info

Publication number
US3712962A
US3712962A US3712962DA US3712962A US 3712962 A US3712962 A US 3712962A US 3712962D A US3712962D A US 3712962DA US 3712962 A US3712962 A US 3712962A
Authority
US
Grant status
Grant
Patent type
Prior art keywords
piezoelectric
transducer
device
apparatus
member
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
Inventor
J Epley
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ADVANCED HEARING Tech Inc
Original Assignee
J Epley
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Grant date

Links

Images

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R25/00Deaf-aid sets providing an auditory perception; Electric tinnitus maskers providing an auditory perception
    • H04R25/60Mounting or interconnection of hearing aid parts, e.g. inside tips or housing. to ossicles
    • H04R25/604Arrangements for mounting transducers
    • H04R25/606Arrangements for mounting 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
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, E.G. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02Prostheses implantable into the body
    • A61F2/18Internal ear or nose parts, e.g. ear-drums
    • A61F2002/183Ear parts
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2225/00Details of deaf aids covered by H04R25/00, not provided for in any of its subgroups
    • H04R2225/31Aspects of the use of accumulators in hearing aids, e.g. rechargeable batteries or fuel cells

Abstract

AN IMPLANTABLE HEARING AID APPARATUS IS DESCRIBED USING A PIEZOELECTRIC TRANSDUCER DEVICE. ONE EMBODIMENT OF THE DEVICE IS A BENDABLE PIEZOELECTRIC MEMBER WHICH MAY BE INSERTED BETWEEN TWO BONES IN THE OSSICULAR CHAIN OF THE MIDDLE EAR FOR MOVEMENT OF SUCH BONES IN ACCORDANCE WITH AN AUDIO FREQUENCY ELECTRICAL SIGNL APPLIED TO SUCH TRANSDUCER. ANOTHER EMBODIMENT OF THE TRANSDUCER MEMBER US A CYLINDRICAL PIEZOELECTRIC MEMBER WHICH ELONGATES WHEN A SIGNAL IS APPLIED THERETO FOR MOVEMENT OF THE OSSICULAR BONES. THE TRANSDUCER MAY ALSO BE USED AS A PICKUP DEVICE TO SENSE THE MECHANICAL MOVEMENT OF THE OSSICULAR BONES AND PRODUCE A CORRESPONDING ELECTRICAL OUTPUT SIGNAL WHICH MAY BE APPLIED TO THE NERVES OF THE INNER EAR.

Description

Jan. 23, 1973 J. M. EPLEY 3,712,962

IMPLANTABLE PIEZOELECTRIC HEARING AID Filed April 5, 1971 3 Sheets-Sheet 1 FIG I SKI N IMPLANTED EXTERNAL RECE'VER Jfif 'F MICROPHONE JOHN M. EPLEY INVENTOR BUCKHORN, BLORE, KLARQUIST & SPARKMAN ATTORNEYS Jan. 23, 1973 J. M. EPLEY IMPLANTABLE PIEZOELECTRIC HEARING AID 3 Sheets-Sheet 2 Filed April 5, 1971 OUTPUT JOHN M. EPLEY.

INVENTOR BY BUCKHORN, BLORE, KLARQUIST & SPARKMAN ATTORNEYS Jan. 23, 1973 J. M. EPLEY IMPLANTABLE PIEZOELECTRIC HEARING AID 3 Sheets-Sheet 3 Filed April 5, 1971 JOHN M. EPLEY INVENTOR BlKKHORN, BIO/(l, KIARQUISI & SIARKMAN ATTORNEYS United States Patent Ofice US. Cl. 179-107 R 17 Claims ABSTRACT OF THE DISCLOSURE An implantable hearing aid apparatus is described using a piezoelectric transducer device. One embodiment of the device is a bendable piezoelectric member which may be inserted between two bones in the ossicular chain of the middle ear for movement of such bones in accordance with an audio frequency electrical signal applied to such transducer. Another embodiment of the transducer member is a cylindrical piezoelectric member which elongates when a signal is applied thereto for movement of the ossicular bones. The transducer may also be used as a pickup device to sense the mechanical movement of the ossicular bones and produce a corresponding electrical output signal which may be applied to the nerves of the inner ear.

BACKGROUND OF THE INVENTION The subject matter of the present invention relates generally to implantable hearing aid apparatus using a piezoelectric transducer, and in particular to such an apparatus in which the piezoelectric transducer is used to move the bones of the ossicular chain in the middle ear when an electrical input signal is applied thereto, or to produce an electrical output signal in response to movement of such bones so that such output signal may be applied to the nerves of the inner ear.

The implantable hearing aid apparatus of the present invention is an improvement over conventional hearing aid apparatus in that it is completely hidden from view so that it does not have the unsightly appearance of conventional hearing aids. In addition, the present hearing aid employs a piezoelectric transducer which is very compact so that it can be positioned between two bones of the ossicular chain without any appreciable impairment of movement of such bones during the normal operation of the ear in response to sounds. Previous implantable hearing aids have employed piezoelectric transducers but they were not of the bending type and were not positioned between the bones of the ossicular chain. Thus, as shown on page 54 of the article by Jako and Jensen, in the publication American Academy of Opthalmology and Otolaryngology, Course 319, Conservative Tympanoplasty, published Oct. 1, 1966, one prior art device included a piezoelectric transducer used as a microphone pickup in the tympanic membrane of the middle ear to produce an output signal which is applied to a piezoelectric output transducer mounted in the oval window of the inner ear to move the fluid in the cochlea of the inner ear. The piezoelectric transducer device of the present invention is much more efficient and requires less power than the prior art apparatus. Another advantage is that there is less harmonic distortion in the hearing aid apparatus of the present invention.

It is therefore one object of the present invention to provide improved implantable hearing aid apparatus which may be completely hidden from view including a compact piezoelectric transducer device.

Another object of the present invention is to provide such a hearing aid apparatus in which the piezoelectric transducer is a bendable device with high efliciency and low power dissipation.

3,712,962 Patented Jan. 23, 1973 A further object of the invention is to provide such a hearing aid apparatus in which the piezoelectric transducer device is adapted to be inserted between two bones of the ossicular chain so that it does not interfere with the movement of the ossicular chain in response to sound vibrations during normal operation of the ear.

Still another object of the invention is to provide such a hearing aid apparatus of low harmonic signal distortion and of a relatively simple and inexpensive construction.

BRIEF DESCRIPTION OF DRAWINGS Other objects and advantages of the present invention will be apparent from the following detailed description of certain preferred embodiments thereof and from the attached drawings, of which:

FIG. 1 is a schematic diagram showing one embodiment of the implantable hearing aid apparatus of the pres ent invention including a bending type of piezoelectric transducer;

FIG. 2 is a perspective elevation view of the transducer device used in the hearing aid apparatus of FIG. 1;

FIG. 3 is a section view taken along the line 33 of FIG. 2;

FIG. 4 is an enlarged section view taken along the line 44 of FIG. 3;

FIG. 5 is a schematic diagram of another embodiment of the hearing aid apparatus of the present invention in which the piezoelectric transducer is used as a pickup device to produce an output signal in response to movement of the bones of the ossicular chain;

FIG. 6 is an elevation view of another embodiment of the piezoelectric transducer device used in the apparatus of FIGS. 1 and 5;

FIG. 7 is a horizontal section view taken along line 7-7 of FIG. 6;

FIG. 8 is an enlarged vertical section view line 8-8 of FIG. 7;

FIG. 9 is a perspective view of a further embodiment of a piezoelectric transducer which may be employed in the hearing apparatus of the present invention;

FIG. 10 is an enlarged section view taken along line 10-10 of FIG. 9;

FIG. 11 is a perspective view of still another embodiment of a piezoelectric transducer employed in the hearing aid apparatus of the present invention; and

FIG. 12 is an enlarged horizontal section view taken along line 1212 of FIG. 11.

DESCRIPTION OF PREFERRED EMBODIMENTS As shown in FIGS. 1 to 4, one embodiment of the implantable hearing aid apparatus of the present invention includes a piezoelectric transducer device 10 of the bendable type shown in US. Pat. 2,841,722 of Gravely granted July 1, 1958, which is connected through leads 11 and 13 to the audio frequency signal output of an implanted radio receiver circuit 12. The receiver circuit is coupled by an internal antenna 14 beneath an outer layer 16 of the skin on the head of the user to an external antenna 18 of a radio transmitter 20 positioned outside the body of such user. This external transmitter and associated amplifier is connected at its input to a microphone 22 and may be provided as a compact unit also containing the power supply batteries for such transmitter which may be completely hidden from view in the clothes or the eyeglasses of the user. Thus, the implantable hearing aid apparatus of the present invention avoids the unsightly appearance of conventional hearing aids.

The receiver 12 may be self-biased by charging power supply capacitors therein with the radio frequency signal transmitted from the transmitter 20' using a circuit similar taken along to that shown in US. Pat. 3,209,081 of Ducote et al., granted Sept. 28, 1965, which also shows a suitable transmitter. The receiver circuit may be made extremely small and with low power dissipation by using a semiconductor integrated circuit including field eflfect transistors. The implanted receiver 12 is encapsulated in a covering of suitable inert plastic material, such as epoxy resin or silicone rubber. Of course, the covering material must be waterproof and implantable into the tissue without causing infection or damage. It should be noted that it may be preferable to provide rechargeable batteries within the implanted receiver 12 in which case a charging coil and associated rectifiers are provided with such charging coil positioned adjacent the outer surface of the skin 12 so that such battery may be recharged through an inductance coil positioned adjacent to such charging coil from an external A.C. power supply.

As shown in FIG. 1, the transducer is mounted with its free ends 24 positioned between two bones of the ossicular chain in the middle ear, such as the stapes 26 and the incus 28. The transducer device 10 is not fixed to any bone or other element of the ear, and as a result, does not interfere with the normal operation of the ossicular chain in transmitting sound vibrations from the tympanic membrane 30 through the malleus 32, incus 28 and stapes 26 to the inner ear. This has the advantage that the user, who hears normally at some frequencies, or only has a partial deafness may still hear in a normal manner after the hearing aid is implanted.

As shown in FIGS. 2, 3 and 4, the piezoelectric transducer device 18 includes two pending piezoelectric members 34 and 36 sold under the trademark Bimorph by the Clevite Corporation, Piezoelectric Division, of Bedford, Ohio. Each of the piezoelectric members 34 and 3'6 is formed by a pair of piezoelectric ceramic plates 38 and 40 which are separated by an intermediate conducting layer 42 and are provided with outer conducting layers 44 and 46. As shown in FIG. 4, the piezoelectric ceramic plates 38 and 40 may be connected in parallel with the two outer conducting layers 44 and 46 being connected together at one terminal lead 48 of the receiver 12, while the intermediate conducting layer 42 is connected to the other lead 50 of the receiver. As a result of poling the piezoelectric ceramic material in the same direction, both of the ceramic plates 38 and 40 in each of the members 34 and 36 bend in the same direction when a signal voltage is applied to terminal leads 48 and 50. However, the two piezoelectric members 34 and 36 are oriented to bend in opposite directions for greater efiiciency. The crystalline piezoelectric ceramic plates 38 and 40 are poled in the same direction in a conventional manner by applying a DC. electrical field of the proper polarity during their formation. Of course, other piezoelectric materials can be employed, such as quartz and Rochelle salt, which do not require this poling.

'It should be noted that while FIG. 4 shows a parallel connection of the two piezoelectric ceramic plates 38 and 40, it is also possible to connect them in series in which case the lower conductive layer 46 is connected to terminal 50 and the upper layer 44 remains connected to terminal 48 while intermediate layer 42 is disconnected. In this series connection, the piezoelectric ceramic material 38 and 40 is poled in opposite directions in order to produce the required bending.

As shown in FIG. 3, the free ends 24 of each of the piezoelectric members 34 and 36 are provided with a relatively thick metal plate 52 attached to the inner conductive coating 46 by epoxy resin or other suitable means. A housing or guide member 54 of suitable plastic material, such as Teflon, is attached to the outer surface of that portion of each metal plate 52 extending beyond the ends of the piezoelectric members 34 and 36. The guide member 54 is provided with a central aperture 56 for receiving the adjacent ends of the bones 26 and 28 of the ossicular chain between which the transducer is inserted. The guide members 54 are made of soft plastic so that they may be trimmed to the proper size during the implant operation.

A resilient spacer member 58 in the form of a cylindrical wedge of triangular cross section is provided between the two metal plates 52 to hold such plates in engagement with bones 26 and 28. The spacer member 58 may be made of a silicone rubber material or other resilient material so that the spacer acts as a damper and connterpoise spring. A fixed rigid spacer 60 of metal is attached between the other end of the piezoelectric members 34 and 36 by epoxy resin. The terminal lead wires 48 and 50 are attached to the same end of such piezoelectric members by a small quantity or bead 62 of epoxy resin which acts as insulating material. The wires 48 and 50 are connected to the conductive layers 42, 44 and 46 by soldering or a conductive epoxy resin underlayer containing a filling of silver particles or other suitable conductive material.

As shown in FIG. 5 in another embodiment of the invention, the piezoelectric transducer device 10' is employed as a pickup device having a pair of output conductors '64 and 66 which transmit the electrical output signal produced by such transducer when the ossicules 26, 28 move the piezoelectric members 34' and 36'. The audio-frequency output signal produced by the transducer 10' is transmitted through an amplifier 68 to a pair of output terminals 70 and 72 which may be connected directly to nerves in the inner ear or to a piezoelectric piston device mounted on the oval window of the inner ear for moving the fluid within the inner ear. Any suitable, implantable amplifier circuit may be employed for amplifier 68 so long as it is capable of low power dissipation to enable long battery life.

As shown in FIGS. 6, 7 and 8, the piezoelectric transducer device 10' of FIG. 5 may be similar to that of FIGS. 2, 3 and 4 except that each piezoelectric member 34 and 36' is formed with a single piezoelectric ceramic plate 74 which is provided with a conductive coating 76 of silver or the like on one side and is bonded to a metal plate 78 of stainless steel on its other side by epoxy resin or other suitable material. This bendable, piezoelectric member 74 is also sold by Clevite Corporation under their trademark Unimorph. Bending of the piezoelectric members 34 and 36' occurs because the metal plate 78 is of fixed length and is attached along the entire length of the piezoelectric ceramic member 74. It should be noted that the metal plate 78 extends beyond the end of the ceramic member 74 and also serves as the metal plates on which the guide members 54 of plastic material are attached. Of course, the modified piezoelectric transducer device 10 of FIGS. 6-8 can also be employed in the hearing aid apparatus of FIG. 1 and, similarly, the piezoelectric transducer device 10 of FIGS. 2 through 4 can be employed in the hearing aid apparatus of FIG. 5.

-A third embodiment of the piezoelectric transducer device 10" is shown in FIG. 9 and consists of a single piezoelectric member which may have two piezoelectric ceramic layers 38 and 40 like member 34 of FIGS. 3 and 4. Alternatively, transducer device 10" may be like piezoelectric member 34 of FIGS. 7 and 8. In this embodiment, the transducer device 10" has a fixed end at epoxy resin bond 62 which is attached to a bone 80 or other fixed anchor point within the ear. The free end of such transducer is provided with a metal plate 82 having a threaded hole through which a metal screw guide member 84 extends. The guide member 84 is hollow to provide a housing, such as a conical cavity, into which the stapes bone 26 fits. The guide member 84 is adjusted by a threaded shank portion 86 extending through such threaded hole to enable adjustment of the guide member relative to the stapes bone 26. Thus, vibration of the piezoelectric transducer device 10" due to the application of an input signal through Wires 48 and 50 causes a corresponding vibration of the stapes bone 26 even when the incus bone has been removed by surgery.

As shown in FIGS. 11 and 12, still another embodiment of the piezoelectric transducer device 10" may be in the form of a hollow, cylindrical tube 8 8 of piezoelectric ceramic material having a pair of electrodes 90 and 92 coated on its inner and outer surfaces which are connected, respectively, to the lead wires 48 and 50. In this embodiment of the invention, the piezoelectric transducer device 10" is positioned between the incus bone 28 and the footplate portion 94 of the stapes bone 26 when the arch portion of such stapes bone has been removed by surgery, such are portion being shown in phantom lines in FIG. 11. The tubular ceramic member 88 expands and contracts longitudinally in response to an electrical signal applied thereto by lead wires 48 and 50 and thereby oscillates the bones of the ossicular chain in the same manner as the embodiment of FIGS. 1 to 4. It will be obvious to those having ordinary skill in the art that many changes may be made in the details of the preferred embodiments of the present invention without departing from the spirit of the invention. Therefore, the scope of the present invention should only be determined by the following claims.

I claim: 1. An implantable hearing aid apparatus in which the improvement comprises:

transducer means including a piezoelectric transducer device adapted to be implanted in an ear; and

mounting means for mounting the transducer device between two movable bones in the ossicular chain of the ear to cause movement of said bones and said device together when an electrical signal is applied to said device, said piezoelectric device being free of any fixed connection which would prevent normal movement of said bones in response to sound.

2. Apparatus in accordance with claim 1 including input signal means for applying an audio frequency electrical signal to the transducer device to cause said device to move said bones in response to the audio signal.

3. Apparatus in accordance with claim 1 including output signal means for transmitting an audio frequency electrical signal from the transducer device when said device is moved by said bones.

4. Apparatus in accordance with claim 1 in which the transducer device is a piezoelectric cylinder member which is provided with axial movement when the audio signal is applied thereto.

5. Apparatus in accordance with claim 1 in which the transducer device includes at least one bendable piezoelectric bar member.

6. Apparatus in accordance with claim in which the transducer device includes a pair of bar members of piezoelectric material which bend in opposite directions when said audio signal is applied thereto, said bar members having interconnected ends attached together and free ends which are free to move relative to each other.

.7. .An implantable hearing aid apparatus in which the improvement comprises:

a piezoelectric transducer device adapted to be implanted in an ear including a pair of bar members; and

mounting means including a pair of. connectors on the free ends of said bar members which are adapted to be inserted between the two bones in the ossicular chain to provide the sole support for the transducer device.

8. Apparatus in accordance with claim 7 in which the connectors are metal plates attached to the bar members with end portions extending from the free ends of said bar members.

9. Apparatus in accordance with claim 8 in which the end portions of the metal plates are each attached at its outer surface to a housing member provided with a central opening for receiving one of said bones.

10. Apparatus in accordance with claim 9 in which the housing member is of plastic material.

11. Apparatus in accordance with claim 8 in which each of the metal plates is fixedly attached along the entire length of one side of the bar member, a conductive coating is provided on the opposite side of said bar member, and said bar member is made of a single layer of piezoelectric ceramic material.

12. Apparatus in accordance with claim -8 in which each of the metal plates is fixedly attached along only a short portion of one side of the bar member, a pair of conductive coatings are provided on the opposite sides of said each bar member, and said bar member includes a plurality of layers of piezoelectric ceramic material separated by an intermediate conductive layer.

13. Apparatus in accordance with claim 7 in which the pair of bar members have their interconnected ends separated by a rigid spacer member and have their free ends separated by a resilient spacer member.

14. Apparatus in accordance with claim 13 in which the resilient spacer member is made of silicone plastic material.

15. Apparatus in accordance with claim 2 in which the input signal means includes an implantable receiver circuit which produces said audio signal at its output.

16. Apparatus in accordance with claim 15 which also includes a remote non-implantable transmitter circuit for transmitting signals to said receiver circuit.

17. Apparatus in accordance with claim 3 in which the output signal means includes an implantable amplifier circuit.

References Cited UNITED STATES PATENTS 3,594,514 7/197'1 Wingrove l79107 R 2,928,069 3/1960 Petermann 310--8.3 X 3,181,016 4/1965 Rosenman 3l08.3 3,093,710 6/1963 Ten Eyck 179-110 A THOMAS W. BROWN, Primary Examiner US. Cl. X.R. 310-83

US3712962A 1971-04-05 1971-04-05 Implantable piezoelectric hearing aid Expired - Lifetime US3712962A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US13100571 true 1971-04-05 1971-04-05

Publications (1)

Publication Number Publication Date
US3712962A true US3712962A (en) 1973-01-23

Family

ID=22447438

Family Applications (1)

Application Number Title Priority Date Filing Date
US3712962A Expired - Lifetime US3712962A (en) 1971-04-05 1971-04-05 Implantable piezoelectric hearing aid

Country Status (1)

Country Link
US (1) US3712962A (en)

Cited By (99)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3870832A (en) * 1972-07-18 1975-03-11 John M Fredrickson Implantable electromagnetic hearing aid
US3882285A (en) * 1973-10-09 1975-05-06 Vicon Instr Company Implantable hearing aid and method of improving hearing
US4352960A (en) * 1980-09-30 1982-10-05 Baptist Medical Center Of Oklahoma, Inc. Magnetic transcutaneous mount for external device of an associated implant
US4606329A (en) * 1985-05-22 1986-08-19 Xomed, Inc. Implantable electromagnetic middle-ear bone-conduction hearing aid device
US4628907A (en) * 1984-03-22 1986-12-16 Epley John M Direct contact hearing aid apparatus
US4729366A (en) * 1984-12-04 1988-03-08 Medical Devices Group, Inc. Implantable hearing aid and method of improving hearing
US4774933A (en) * 1987-05-18 1988-10-04 Xomed, Inc. Method and apparatus for implanting hearing device
USRE32947E (en) * 1980-09-30 1989-06-13 Baptist Medical Center Of Oklahoma, Inc. Magnetic transcutaneous mount for external device of an associated implant
US4845776A (en) * 1987-05-11 1989-07-04 Electro Acustica S.A. Piezoelectric transducer and transformer circuit
US4850962A (en) * 1984-12-04 1989-07-25 Medical Devices Group, Inc. Implantable hearing aid and method of improving hearing
EP0340594A1 (en) * 1988-05-06 1989-11-08 Siemens Audiologische Technik GmbH Hearing aid device with wireless remote control
US5245245A (en) * 1992-05-04 1993-09-14 Motorola, Inc. Mass-loaded cantilever vibrator
US5277694A (en) * 1991-02-13 1994-01-11 Implex Gmbh Electromechanical transducer for implantable hearing aids
US5344387A (en) * 1992-12-23 1994-09-06 Lupin Alan J Cochlear implant
US5390254A (en) * 1991-01-17 1995-02-14 Adelman; Roger A. Hearing apparatus
FR2712800A1 (en) * 1993-11-25 1995-06-02 Dumon Thibaud Hearing aid with piezoelectric vibrator implantable in medium ear
US5491988A (en) * 1993-11-02 1996-02-20 Karl Mayer Textilmaschinenfabrik Gmbh Warp-knitting machine with at least one guide bar
US5554096A (en) * 1993-07-01 1996-09-10 Symphonix Implantable electromagnetic hearing transducer
US5624376A (en) * 1993-07-01 1997-04-29 Symphonix Devices, Inc. Implantable and external hearing systems having a floating mass transducer
WO1998006237A1 (en) * 1996-08-07 1998-02-12 St. Croix Medical, Inc. Hearing aid transducer support
WO1998006236A1 (en) * 1996-08-07 1998-02-12 St. Croix Medical, Inc. Middle ear transducer
US5762583A (en) * 1996-08-07 1998-06-09 St. Croix Medical, Inc. Piezoelectric film transducer
US5772575A (en) * 1995-09-22 1998-06-30 S. George Lesinski Implantable hearing aid
WO1998030175A1 (en) * 1997-01-13 1998-07-16 Eberhard Stennert Middle ear prosthesis
US5800336A (en) * 1993-07-01 1998-09-01 Symphonix Devices, Inc. Advanced designs of floating mass transducers
US5814095A (en) * 1996-09-18 1998-09-29 Implex Gmbh Spezialhorgerate Implantable microphone and implantable hearing aids utilizing same
US5842967A (en) * 1996-08-07 1998-12-01 St. Croix Medical, Inc. Contactless transducer stimulation and sensing of ossicular chain
WO1999008480A2 (en) * 1997-08-07 1999-02-18 St. Croix Medical, Inc. Middle ear transducer
US5879283A (en) * 1996-08-07 1999-03-09 St. Croix Medical, Inc. Implantable hearing system having multiple transducers
US5881158A (en) * 1996-05-24 1999-03-09 United States Surgical Corporation Microphones for an implantable hearing aid
US5897486A (en) * 1993-07-01 1999-04-27 Symphonix Devices, Inc. Dual coil floating mass transducers
US5913815A (en) * 1993-07-01 1999-06-22 Symphonix Devices, Inc. Bone conducting floating mass transducers
EP0936840A1 (en) * 1998-02-16 1999-08-18 Daniel F. àWengen Implantable hearing aid
US5951601A (en) * 1996-03-25 1999-09-14 Lesinski; S. George Attaching an implantable hearing aid microactuator
US5977689A (en) * 1996-07-19 1999-11-02 Neukermans; Armand P. Biocompatible, implantable hearing aid microactuator
US5984859A (en) * 1993-01-25 1999-11-16 Lesinski; S. George Implantable auditory system components and system
US5997466A (en) * 1996-08-07 1999-12-07 St. Croix Medical, Inc. Implantable hearing system having multiple transducers
US6001129A (en) * 1996-08-07 1999-12-14 St. Croix Medical, Inc. Hearing aid transducer support
US6010532A (en) * 1996-11-25 2000-01-04 St. Croix Medical, Inc. Dual path implantable hearing assistance device
US6039685A (en) * 1998-09-14 2000-03-21 St. Croix Medical, Inc. Ventable connector with seals
EP1018988A1 (en) * 1997-09-25 2000-07-19 Symphonix Devices, Inc. Biasing device for implantable hearing device
US6113531A (en) * 1998-11-18 2000-09-05 Implex Aktiengesellschaft Hearing Technology Process for optimization of mechanical inner ear stimulation in partially or fully implantable hearing systems
US6171229B1 (en) 1996-08-07 2001-01-09 St. Croix Medical, Inc. Ossicular transducer attachment for an implantable hearing device
US6198971B1 (en) 1999-04-08 2001-03-06 Implex Aktiengesellschaft Hearing Technology Implantable system for rehabilitation of a hearing disorder
US6214046B1 (en) 1996-11-25 2001-04-10 St. Croix Medical, Inc. Method of implanting an implantable hearing assistance device with remote electronics unit
US6261224B1 (en) 1996-08-07 2001-07-17 St. Croix Medical, Inc. Piezoelectric film transducer for cochlear prosthetic
US6264603B1 (en) 1997-08-07 2001-07-24 St. Croix Medical, Inc. Middle ear vibration sensor using multiple transducers
US6277148B1 (en) 1999-02-11 2001-08-21 Soundtec, Inc. Middle ear magnet implant, attachment device and method, and test instrument and method
US6315710B1 (en) 1997-07-21 2001-11-13 St. Croix Medical, Inc. Hearing system with middle ear transducer mount
US20020012438A1 (en) * 2000-06-30 2002-01-31 Hans Leysieffer System for rehabilitation of a hearing disorder
EP1179969A2 (en) 2000-08-11 2002-02-13 Phonak Ag At least partially implantable hearing system
US20020051550A1 (en) * 2000-08-25 2002-05-02 Hans Leysieffer Implantable hermetically sealed housing for an implantable medical device and process for producing the same
US6398717B1 (en) 1999-05-21 2002-06-04 Phonak Ag Device for mechanical coupling of an electromechanical hearing aid converter which can be implanted in a mastoid cavity
US6436028B1 (en) 1999-12-28 2002-08-20 Soundtec, Inc. Direct drive movement of body constituent
US6482144B1 (en) 1999-10-07 2002-11-19 Phonak Ag Arrangement for mechanical coupling of a driver to a coupling site of the ossicular chain
US20030055311A1 (en) * 1996-02-15 2003-03-20 Neukermans Armand P. Biocompatible transducers
US6537200B2 (en) 2000-03-28 2003-03-25 Cochlear Limited Partially or fully implantable hearing system
US6537199B1 (en) 1999-07-26 2003-03-25 Phonak Ag Arrangement for mechanical coupling of a driver to a coupling site of the ossicular chain
US6540662B2 (en) 1998-06-05 2003-04-01 St. Croix Medical, Inc. Method and apparatus for reduced feedback in implantable hearing assistance systems
US6540661B1 (en) 1999-10-07 2003-04-01 Phonak Ag Arrangement for coupling of a driver to a coupling site of the ossicular chain
US6547715B1 (en) 1999-07-08 2003-04-15 Phonak Ag Arrangement for mechanical coupling of a driver to a coupling site of the ossicular chain
US6554762B2 (en) 2000-08-25 2003-04-29 Cochlear Limited Implantable hearing system with means for measuring its coupling quality
US6565503B2 (en) 2000-04-13 2003-05-20 Cochlear Limited At least partially implantable system for rehabilitation of hearing disorder
US6575894B2 (en) 2000-04-13 2003-06-10 Cochlear Limited At least partially implantable system for rehabilitation of a hearing disorder
US6629923B2 (en) 2000-09-21 2003-10-07 Phonak Ag At least partially implantable hearing system with direct mechanical stimulation of a lymphatic space of the inner ear
US6629922B1 (en) 1999-10-29 2003-10-07 Soundport Corporation Flextensional output actuators for surgically implantable hearing aids
US6676592B2 (en) 1993-07-01 2004-01-13 Symphonix Devices, Inc. Dual coil floating mass transducers
US6689045B2 (en) 1998-09-24 2004-02-10 St. Croix Medical, Inc. Method and apparatus for improving signal quality in implantable hearing systems
US6697674B2 (en) 2000-04-13 2004-02-24 Cochlear Limited At least partially implantable system for rehabilitation of a hearing disorder
US6730015B2 (en) 2001-06-01 2004-05-04 Mike Schugt Flexible transducer supports
US6736770B2 (en) 2000-08-25 2004-05-18 Cochlear Limited Implantable medical device comprising an hermetically sealed housing
EP1439737A2 (en) 2003-01-15 2004-07-21 Med-El Elektromedizinische Geräte Ges.m.b.h. Implantable electromechanical transducer
US20050203557A1 (en) * 2001-10-30 2005-09-15 Lesinski S. G. Implantation method for a hearing aid microactuator implanted into the cochlea
US20060189841A1 (en) * 2004-10-12 2006-08-24 Vincent Pluvinage Systems and methods for photo-mechanical hearing transduction
US7226406B2 (en) 2000-09-25 2007-06-05 Cochlear Limited At least partially implantable hearing system
US20070280491A1 (en) * 2006-05-30 2007-12-06 Sonitus Medical, Inc. Methods and apparatus for processing audio signals
US20090092271A1 (en) * 2007-10-04 2009-04-09 Earlens Corporation Energy Delivery and Microphone Placement Methods for Improved Comfort in an Open Canal Hearing Aid
US20090097681A1 (en) * 2007-10-12 2009-04-16 Earlens Corporation Multifunction System and Method for Integrated Hearing and Communication with Noise Cancellation and Feedback Management
US20090112288A1 (en) * 2007-10-25 2009-04-30 Korea Institute Of Machinery & Materials Frequency analyzer for mems based cochlear implant with self power supply
US20090268932A1 (en) * 2006-05-30 2009-10-29 Sonitus Medical, Inc. Microphone placement for oral applications
US7668325B2 (en) 2005-05-03 2010-02-23 Earlens Corporation Hearing system having an open chamber for housing components and reducing the occlusion effect
US20100048982A1 (en) * 2008-06-17 2010-02-25 Earlens Corporation Optical Electro-Mechanical Hearing Devices With Separate Power and Signal Components
US20100098270A1 (en) * 2007-05-29 2010-04-22 Sonitus Medical, Inc. Systems and methods to provide communication, positioning and monitoring of user status
US20100312040A1 (en) * 2009-06-05 2010-12-09 SoundBeam LLC Optically Coupled Acoustic Middle Ear Implant Systems and Methods
US20100317914A1 (en) * 2009-06-15 2010-12-16 SoundBeam LLC Optically Coupled Active Ossicular Replacement Prosthesis
WO2011066295A1 (en) 2009-11-24 2011-06-03 Med-El Elektromedizinische Geraete Gmbh Implantable microphone for hearing systems
US20110144719A1 (en) * 2009-06-18 2011-06-16 SoundBeam LLC Optically Coupled Cochlear Implant Systems and Methods
US20110142274A1 (en) * 2009-06-18 2011-06-16 SoundBeam LLC Eardrum Implantable Devices For Hearing Systems and Methods
US8177705B2 (en) 2007-10-02 2012-05-15 Sonitus Medical, Inc. Methods and apparatus for transmitting vibrations
US8396239B2 (en) 2008-06-17 2013-03-12 Earlens Corporation Optical electro-mechanical hearing devices with combined power and signal architectures
US20130243230A1 (en) * 2010-10-19 2013-09-19 Phonak Ag Hearing instrument comprising a rechargeable power source
US8715153B2 (en) 2009-06-22 2014-05-06 Earlens Corporation Optically coupled bone conduction systems and methods
US8715154B2 (en) 2009-06-24 2014-05-06 Earlens Corporation Optically coupled cochlear actuator systems and methods
US8824715B2 (en) 2008-06-17 2014-09-02 Earlens Corporation Optical electro-mechanical hearing devices with combined power and signal architectures
US8845705B2 (en) 2009-06-24 2014-09-30 Earlens Corporation Optical cochlear stimulation devices and methods
US9392377B2 (en) 2010-12-20 2016-07-12 Earlens Corporation Anatomically customized ear canal hearing apparatus
US9749758B2 (en) 2008-09-22 2017-08-29 Earlens Corporation Devices and methods for hearing
US9924276B2 (en) 2014-11-26 2018-03-20 Earlens Corporation Adjustable venting for hearing instruments
US9930458B2 (en) 2014-07-14 2018-03-27 Earlens Corporation Sliding bias and peak limiting for optical hearing devices

Cited By (180)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3870832A (en) * 1972-07-18 1975-03-11 John M Fredrickson Implantable electromagnetic hearing aid
US3882285A (en) * 1973-10-09 1975-05-06 Vicon Instr Company Implantable hearing aid and method of improving hearing
US4352960A (en) * 1980-09-30 1982-10-05 Baptist Medical Center Of Oklahoma, Inc. Magnetic transcutaneous mount for external device of an associated implant
USRE32947E (en) * 1980-09-30 1989-06-13 Baptist Medical Center Of Oklahoma, Inc. Magnetic transcutaneous mount for external device of an associated implant
US4628907A (en) * 1984-03-22 1986-12-16 Epley John M Direct contact hearing aid apparatus
US4729366A (en) * 1984-12-04 1988-03-08 Medical Devices Group, Inc. Implantable hearing aid and method of improving hearing
US4850962A (en) * 1984-12-04 1989-07-25 Medical Devices Group, Inc. Implantable hearing aid and method of improving hearing
US4606329A (en) * 1985-05-22 1986-08-19 Xomed, Inc. Implantable electromagnetic middle-ear bone-conduction hearing aid device
DE3617118A1 (en) * 1985-05-22 1987-02-05 Bristol Myers Co The implantable electromagnetic mittelohrhoerhilfe
FR2586557A1 (en) * 1985-05-22 1987-03-06 Bristol Myers Co Device using electromagnetic implantable bone conduction hearing in the middle ear
NL8601307A (en) * 1985-05-22 1986-12-16 Bristol Myers Co The implantable electromagnetic hearing aid with middle ear bone-conduction.
US4845776A (en) * 1987-05-11 1989-07-04 Electro Acustica S.A. Piezoelectric transducer and transformer circuit
US4774933A (en) * 1987-05-18 1988-10-04 Xomed, Inc. Method and apparatus for implanting hearing device
EP0340594A1 (en) * 1988-05-06 1989-11-08 Siemens Audiologische Technik GmbH Hearing aid device with wireless remote control
US5012520A (en) * 1988-05-06 1991-04-30 Siemens Aktiengesellschaft Hearing aid with wireless remote control
US6041129A (en) * 1991-01-17 2000-03-21 Adelman; Roger A. Hearing apparatus
US5390254A (en) * 1991-01-17 1995-02-14 Adelman; Roger A. Hearing apparatus
US5277694A (en) * 1991-02-13 1994-01-11 Implex Gmbh Electromechanical transducer for implantable hearing aids
US5245245A (en) * 1992-05-04 1993-09-14 Motorola, Inc. Mass-loaded cantilever vibrator
US5344387A (en) * 1992-12-23 1994-09-06 Lupin Alan J Cochlear implant
US5984859A (en) * 1993-01-25 1999-11-16 Lesinski; S. George Implantable auditory system components and system
US5624376A (en) * 1993-07-01 1997-04-29 Symphonix Devices, Inc. Implantable and external hearing systems having a floating mass transducer
US5554096A (en) * 1993-07-01 1996-09-10 Symphonix Implantable electromagnetic hearing transducer
US5857958A (en) * 1993-07-01 1999-01-12 Symphonix Devices, Inc. Implantable and external hearing systems having a floating mass transducer
US6676592B2 (en) 1993-07-01 2004-01-13 Symphonix Devices, Inc. Dual coil floating mass transducers
US5913815A (en) * 1993-07-01 1999-06-22 Symphonix Devices, Inc. Bone conducting floating mass transducers
US5800336A (en) * 1993-07-01 1998-09-01 Symphonix Devices, Inc. Advanced designs of floating mass transducers
US6475134B1 (en) 1993-07-01 2002-11-05 Symphonix Devices, Inc. Dual coil floating mass transducers
US5897486A (en) * 1993-07-01 1999-04-27 Symphonix Devices, Inc. Dual coil floating mass transducers
US5491988A (en) * 1993-11-02 1996-02-20 Karl Mayer Textilmaschinenfabrik Gmbh Warp-knitting machine with at least one guide bar
FR2712800A1 (en) * 1993-11-25 1995-06-02 Dumon Thibaud Hearing aid with piezoelectric vibrator implantable in medium ear
US5772575A (en) * 1995-09-22 1998-06-30 S. George Lesinski Implantable hearing aid
US20030055311A1 (en) * 1996-02-15 2003-03-20 Neukermans Armand P. Biocompatible transducers
US5951601A (en) * 1996-03-25 1999-09-14 Lesinski; S. George Attaching an implantable hearing aid microactuator
US5881158A (en) * 1996-05-24 1999-03-09 United States Surgical Corporation Microphones for an implantable hearing aid
US6153966A (en) * 1996-07-19 2000-11-28 Neukermans; Armand P. Biocompatible, implantable hearing aid microactuator
US5977689A (en) * 1996-07-19 1999-11-02 Neukermans; Armand P. Biocompatible, implantable hearing aid microactuator
US5836863A (en) * 1996-08-07 1998-11-17 St. Croix Medical, Inc. Hearing aid transducer support
US5879283A (en) * 1996-08-07 1999-03-09 St. Croix Medical, Inc. Implantable hearing system having multiple transducers
US5842967A (en) * 1996-08-07 1998-12-01 St. Croix Medical, Inc. Contactless transducer stimulation and sensing of ossicular chain
US6171229B1 (en) 1996-08-07 2001-01-09 St. Croix Medical, Inc. Ossicular transducer attachment for an implantable hearing device
US5762583A (en) * 1996-08-07 1998-06-09 St. Croix Medical, Inc. Piezoelectric film transducer
WO1998006236A1 (en) * 1996-08-07 1998-02-12 St. Croix Medical, Inc. Middle ear transducer
US5997466A (en) * 1996-08-07 1999-12-07 St. Croix Medical, Inc. Implantable hearing system having multiple transducers
US6001129A (en) * 1996-08-07 1999-12-14 St. Croix Medical, Inc. Hearing aid transducer support
US6005955A (en) * 1996-08-07 1999-12-21 St. Croix Medical, Inc. Middle ear transducer
US6488616B1 (en) 1996-08-07 2002-12-03 St. Croix Medical, Inc. Hearing aid transducer support
WO1998006237A1 (en) * 1996-08-07 1998-02-12 St. Croix Medical, Inc. Hearing aid transducer support
US6261224B1 (en) 1996-08-07 2001-07-17 St. Croix Medical, Inc. Piezoelectric film transducer for cochlear prosthetic
US6050933A (en) * 1996-08-07 2000-04-18 St. Croix Medical, Inc. Hearing aid transducer support
US20040181117A1 (en) * 1996-08-07 2004-09-16 Adams Theodore P. Piezoelectric film transducer
US5814095A (en) * 1996-09-18 1998-09-29 Implex Gmbh Spezialhorgerate Implantable microphone and implantable hearing aids utilizing same
US6010532A (en) * 1996-11-25 2000-01-04 St. Croix Medical, Inc. Dual path implantable hearing assistance device
US6214046B1 (en) 1996-11-25 2001-04-10 St. Croix Medical, Inc. Method of implanting an implantable hearing assistance device with remote electronics unit
US6235056B1 (en) 1996-11-25 2001-05-22 St. Croix Medical, Inc. Implantable hearing assistance device with remote electronics unit
US6491722B1 (en) 1996-11-25 2002-12-10 St. Croix Medical, Inc. Dual path implantable hearing assistance device
US6241767B1 (en) * 1997-01-13 2001-06-05 Eberhard Stennert Middle ear prosthesis
WO1998030175A1 (en) * 1997-01-13 1998-07-16 Eberhard Stennert Middle ear prosthesis
US6315710B1 (en) 1997-07-21 2001-11-13 St. Croix Medical, Inc. Hearing system with middle ear transducer mount
WO1999008480A3 (en) * 1997-08-07 1999-04-29 St Croix Medical Inc Middle ear transducer
WO1999008480A2 (en) * 1997-08-07 1999-02-18 St. Croix Medical, Inc. Middle ear transducer
US6264603B1 (en) 1997-08-07 2001-07-24 St. Croix Medical, Inc. Middle ear vibration sensor using multiple transducers
EP1018988A1 (en) * 1997-09-25 2000-07-19 Symphonix Devices, Inc. Biasing device for implantable hearing device
EP1018988A4 (en) * 1997-09-25 2002-07-10 Symphonix Devices Inc Biasing device for implantable hearing device
US6099462A (en) * 1998-02-16 2000-08-08 Awengen; Daniel F. Implantable hearing aid and method for implanting the same
EP0936840A1 (en) * 1998-02-16 1999-08-18 Daniel F. àWengen Implantable hearing aid
US6540662B2 (en) 1998-06-05 2003-04-01 St. Croix Medical, Inc. Method and apparatus for reduced feedback in implantable hearing assistance systems
US6755778B2 (en) 1998-06-05 2004-06-29 St. Croix Medical, Inc. Method and apparatus for reduced feedback in implantable hearing assistance systems
US6039685A (en) * 1998-09-14 2000-03-21 St. Croix Medical, Inc. Ventable connector with seals
US6689045B2 (en) 1998-09-24 2004-02-10 St. Croix Medical, Inc. Method and apparatus for improving signal quality in implantable hearing systems
US6113531A (en) * 1998-11-18 2000-09-05 Implex Aktiengesellschaft Hearing Technology Process for optimization of mechanical inner ear stimulation in partially or fully implantable hearing systems
US6277148B1 (en) 1999-02-11 2001-08-21 Soundtec, Inc. Middle ear magnet implant, attachment device and method, and test instrument and method
US6198971B1 (en) 1999-04-08 2001-03-06 Implex Aktiengesellschaft Hearing Technology Implantable system for rehabilitation of a hearing disorder
US6398717B1 (en) 1999-05-21 2002-06-04 Phonak Ag Device for mechanical coupling of an electromechanical hearing aid converter which can be implanted in a mastoid cavity
US6547715B1 (en) 1999-07-08 2003-04-15 Phonak Ag Arrangement for mechanical coupling of a driver to a coupling site of the ossicular chain
US6537199B1 (en) 1999-07-26 2003-03-25 Phonak Ag Arrangement for mechanical coupling of a driver to a coupling site of the ossicular chain
US6540661B1 (en) 1999-10-07 2003-04-01 Phonak Ag Arrangement for coupling of a driver to a coupling site of the ossicular chain
US6482144B1 (en) 1999-10-07 2002-11-19 Phonak Ag Arrangement for mechanical coupling of a driver to a coupling site of the ossicular chain
US6629922B1 (en) 1999-10-29 2003-10-07 Soundport Corporation Flextensional output actuators for surgically implantable hearing aids
US6436028B1 (en) 1999-12-28 2002-08-20 Soundtec, Inc. Direct drive movement of body constituent
US6537200B2 (en) 2000-03-28 2003-03-25 Cochlear Limited Partially or fully implantable hearing system
US6565503B2 (en) 2000-04-13 2003-05-20 Cochlear Limited At least partially implantable system for rehabilitation of hearing disorder
US6575894B2 (en) 2000-04-13 2003-06-10 Cochlear Limited At least partially implantable system for rehabilitation of a hearing disorder
US6697674B2 (en) 2000-04-13 2004-02-24 Cochlear Limited At least partially implantable system for rehabilitation of a hearing disorder
US20020012438A1 (en) * 2000-06-30 2002-01-31 Hans Leysieffer System for rehabilitation of a hearing disorder
US7376563B2 (en) 2000-06-30 2008-05-20 Cochlear Limited System for rehabilitation of a hearing disorder
EP1179969A2 (en) 2000-08-11 2002-02-13 Phonak Ag At least partially implantable hearing system
US6592512B2 (en) 2000-08-11 2003-07-15 Phonak Ag At least partially implantable system for rehabilitation of a hearing disorder
US6736770B2 (en) 2000-08-25 2004-05-18 Cochlear Limited Implantable medical device comprising an hermetically sealed housing
US20020051550A1 (en) * 2000-08-25 2002-05-02 Hans Leysieffer Implantable hermetically sealed housing for an implantable medical device and process for producing the same
US6554762B2 (en) 2000-08-25 2003-04-29 Cochlear Limited Implantable hearing system with means for measuring its coupling quality
US8105229B2 (en) 2000-09-15 2012-01-31 Cochlear Limited At least partially implantable hearing system
US20070249890A1 (en) * 2000-09-15 2007-10-25 Cochlear Limited At least partially implantable hearing system
US6629923B2 (en) 2000-09-21 2003-10-07 Phonak Ag At least partially implantable hearing system with direct mechanical stimulation of a lymphatic space of the inner ear
US7226406B2 (en) 2000-09-25 2007-06-05 Cochlear Limited At least partially implantable hearing system
US6730015B2 (en) 2001-06-01 2004-05-04 Mike Schugt Flexible transducer supports
US8147544B2 (en) 2001-10-30 2012-04-03 Otokinetics Inc. Therapeutic appliance for cochlea
US20050203557A1 (en) * 2001-10-30 2005-09-15 Lesinski S. G. Implantation method for a hearing aid microactuator implanted into the cochlea
US8876689B2 (en) 2001-10-30 2014-11-04 Otokinetics Inc. Hearing aid microactuator
DE10301723B3 (en) * 2003-01-15 2004-09-16 Med-El Elektromedizinische Geräte GmbH An implantable electromechanical transducer
US20050113633A1 (en) * 2003-01-15 2005-05-26 Med-El Elektromedizinische Gerate Ges.M.B.H. Implantable converter for cochlea implants and implantable hearing aids
EP1439737A2 (en) 2003-01-15 2004-07-21 Med-El Elektromedizinische Geräte Ges.m.b.h. Implantable electromechanical transducer
US7481761B2 (en) 2003-01-15 2009-01-27 Med-El Elektromedizinische Geräte Ges.m.b.H. Implantable converter for cochlea implants and implantable hearing aids
US9226083B2 (en) 2004-07-28 2015-12-29 Earlens Corporation Multifunction system and method for integrated hearing and communication with noise cancellation and feedback management
US8696541B2 (en) 2004-10-12 2014-04-15 Earlens Corporation Systems and methods for photo-mechanical hearing transduction
US7867160B2 (en) 2004-10-12 2011-01-11 Earlens Corporation Systems and methods for photo-mechanical hearing transduction
US20110077453A1 (en) * 2004-10-12 2011-03-31 Earlens Corporation Systems and Methods For Photo-Mechanical Hearing Transduction
US20060189841A1 (en) * 2004-10-12 2006-08-24 Vincent Pluvinage Systems and methods for photo-mechanical hearing transduction
US9949039B2 (en) 2005-05-03 2018-04-17 Earlens Corporation Hearing system having improved high frequency response
US9154891B2 (en) 2005-05-03 2015-10-06 Earlens Corporation Hearing system having improved high frequency response
US7668325B2 (en) 2005-05-03 2010-02-23 Earlens Corporation Hearing system having an open chamber for housing components and reducing the occlusion effect
US20100202645A1 (en) * 2005-05-03 2010-08-12 Earlens Corporation Hearing system having improved high frequency response
US9906878B2 (en) 2006-05-30 2018-02-27 Soundmed, Llc Methods and apparatus for transmitting vibrations
US8712077B2 (en) 2006-05-30 2014-04-29 Sonitus Medical, Inc. Methods and apparatus for processing audio signals
US9826324B2 (en) 2006-05-30 2017-11-21 Soundmed, Llc Methods and apparatus for processing audio signals
US20100220883A1 (en) * 2006-05-30 2010-09-02 Sonitus Medical, Inc. Actuator systems for oral-based appliances
US7844064B2 (en) 2006-05-30 2010-11-30 Sonitus Medical, Inc. Methods and apparatus for transmitting vibrations
US20100312568A1 (en) * 2006-05-30 2010-12-09 Sonitus Medical, Inc. Methods and apparatus for processing audio signals
US20090268932A1 (en) * 2006-05-30 2009-10-29 Sonitus Medical, Inc. Microphone placement for oral applications
US9781526B2 (en) 2006-05-30 2017-10-03 Soundmed, Llc Methods and apparatus for processing audio signals
US20100322449A1 (en) * 2006-05-30 2010-12-23 Sonitus Medical, Inc. Methods and apparatus for processing audio signals
US8233654B2 (en) 2006-05-30 2012-07-31 Sonitus Medical, Inc. Methods and apparatus for processing audio signals
US7876906B2 (en) 2006-05-30 2011-01-25 Sonitus Medical, Inc. Methods and apparatus for processing audio signals
US20110026740A1 (en) * 2006-05-30 2011-02-03 Sonitus Medical, Inc. Methods and apparatus for processing audio signals
US20090097685A1 (en) * 2006-05-30 2009-04-16 Sonitus Medical, Inc. Actuator systems for oral-based appliances
US20110116659A1 (en) * 2006-05-30 2011-05-19 Sonitus Medical, Inc. Methods and apparatus for processing audio signals
US9736602B2 (en) 2006-05-30 2017-08-15 Soundmed, Llc Actuator systems for oral-based appliances
US9615182B2 (en) 2006-05-30 2017-04-04 Soundmed Llc Methods and apparatus for transmitting vibrations
US8588447B2 (en) 2006-05-30 2013-11-19 Sonitus Medical, Inc. Methods and apparatus for transmitting vibrations
US20080019542A1 (en) * 2006-05-30 2008-01-24 Sonitus Medical, Inc. Actuator systems for oral-based appliances
US9113262B2 (en) 2006-05-30 2015-08-18 Sonitus Medical, Inc. Methods and apparatus for transmitting vibrations
US20070286440A1 (en) * 2006-05-30 2007-12-13 Sonitus Medical, Inc. Methods and apparatus for transmitting vibrations
US9185485B2 (en) 2006-05-30 2015-11-10 Sonitus Medical, Inc. Methods and apparatus for processing audio signals
US8170242B2 (en) 2006-05-30 2012-05-01 Sonitus Medical, Inc. Actuator systems for oral-based appliances
US8358792B2 (en) 2006-05-30 2013-01-22 Sonitus Medical, Inc. Actuator systems for oral-based appliances
US20070280491A1 (en) * 2006-05-30 2007-12-06 Sonitus Medical, Inc. Methods and apparatus for processing audio signals
US8254611B2 (en) 2006-05-30 2012-08-28 Sonitus Medical, Inc. Methods and apparatus for transmitting vibrations
US7724911B2 (en) * 2006-05-30 2010-05-25 Sonitus Medical, Inc. Actuator systems for oral-based appliances
US8649535B2 (en) 2006-05-30 2014-02-11 Sonitus Medical, Inc. Actuator systems for oral-based appliances
US8270638B2 (en) 2007-05-29 2012-09-18 Sonitus Medical, Inc. Systems and methods to provide communication, positioning and monitoring of user status
US20100098270A1 (en) * 2007-05-29 2010-04-22 Sonitus Medical, Inc. Systems and methods to provide communication, positioning and monitoring of user status
US8177705B2 (en) 2007-10-02 2012-05-15 Sonitus Medical, Inc. Methods and apparatus for transmitting vibrations
US8585575B2 (en) 2007-10-02 2013-11-19 Sonitus Medical, Inc. Methods and apparatus for transmitting vibrations
US9143873B2 (en) 2007-10-02 2015-09-22 Sonitus Medical, Inc. Methods and apparatus for transmitting vibrations
US8295523B2 (en) 2007-10-04 2012-10-23 SoundBeam LLC Energy delivery and microphone placement methods for improved comfort in an open canal hearing aid
US20090092271A1 (en) * 2007-10-04 2009-04-09 Earlens Corporation Energy Delivery and Microphone Placement Methods for Improved Comfort in an Open Canal Hearing Aid
US20090097681A1 (en) * 2007-10-12 2009-04-16 Earlens Corporation Multifunction System and Method for Integrated Hearing and Communication with Noise Cancellation and Feedback Management
US8401212B2 (en) 2007-10-12 2013-03-19 Earlens Corporation Multifunction system and method for integrated hearing and communication with noise cancellation and feedback management
JP2009101166A (en) * 2007-10-25 2009-05-14 Korea Mach Res Inst Frequency analyzer for artificial cochlea
US20090112288A1 (en) * 2007-10-25 2009-04-30 Korea Institute Of Machinery & Materials Frequency analyzer for mems based cochlear implant with self power supply
US8165688B2 (en) 2007-10-25 2012-04-24 Korea Institute Of Machinery & Materials Frequency analyzer for MEMS based cochlear implant with self power supply
US9961454B2 (en) 2008-06-17 2018-05-01 Earlens Corporation Optical electro-mechanical hearing devices with separate power and signal components
US9591409B2 (en) 2008-06-17 2017-03-07 Earlens Corporation Optical electro-mechanical hearing devices with separate power and signal components
US8824715B2 (en) 2008-06-17 2014-09-02 Earlens Corporation Optical electro-mechanical hearing devices with combined power and signal architectures
US8715152B2 (en) 2008-06-17 2014-05-06 Earlens Corporation Optical electro-mechanical hearing devices with separate power and signal components
US9049528B2 (en) 2008-06-17 2015-06-02 Earlens Corporation Optical electro-mechanical hearing devices with combined power and signal architectures
US20100048982A1 (en) * 2008-06-17 2010-02-25 Earlens Corporation Optical Electro-Mechanical Hearing Devices With Separate Power and Signal Components
US8396239B2 (en) 2008-06-17 2013-03-12 Earlens Corporation Optical electro-mechanical hearing devices with combined power and signal architectures
US9749758B2 (en) 2008-09-22 2017-08-29 Earlens Corporation Devices and methods for hearing
US9949035B2 (en) 2008-09-22 2018-04-17 Earlens Corporation Transducer devices and methods for hearing
US20100312040A1 (en) * 2009-06-05 2010-12-09 SoundBeam LLC Optically Coupled Acoustic Middle Ear Implant Systems and Methods
US9055379B2 (en) 2009-06-05 2015-06-09 Earlens Corporation Optically coupled acoustic middle ear implant systems and methods
US20100317914A1 (en) * 2009-06-15 2010-12-16 SoundBeam LLC Optically Coupled Active Ossicular Replacement Prosthesis
US9544700B2 (en) 2009-06-15 2017-01-10 Earlens Corporation Optically coupled active ossicular replacement prosthesis
US8401214B2 (en) 2009-06-18 2013-03-19 Earlens Corporation Eardrum implantable devices for hearing systems and methods
US20110142274A1 (en) * 2009-06-18 2011-06-16 SoundBeam LLC Eardrum Implantable Devices For Hearing Systems and Methods
US8787609B2 (en) 2009-06-18 2014-07-22 Earlens Corporation Eardrum implantable devices for hearing systems and methods
US20110144719A1 (en) * 2009-06-18 2011-06-16 SoundBeam LLC Optically Coupled Cochlear Implant Systems and Methods
US9277335B2 (en) 2009-06-18 2016-03-01 Earlens Corporation Eardrum implantable devices for hearing systems and methods
US8715153B2 (en) 2009-06-22 2014-05-06 Earlens Corporation Optically coupled bone conduction systems and methods
US8715154B2 (en) 2009-06-24 2014-05-06 Earlens Corporation Optically coupled cochlear actuator systems and methods
US8986187B2 (en) 2009-06-24 2015-03-24 Earlens Corporation Optically coupled cochlear actuator systems and methods
US8845705B2 (en) 2009-06-24 2014-09-30 Earlens Corporation Optical cochlear stimulation devices and methods
WO2011066295A1 (en) 2009-11-24 2011-06-03 Med-El Elektromedizinische Geraete Gmbh Implantable microphone for hearing systems
WO2011066306A1 (en) 2009-11-24 2011-06-03 Med-El Elektromedizinische Geraete Gmbh Implantable microphone for hearing systems
US9647462B2 (en) * 2010-10-19 2017-05-09 Sonova Ag Hearing instrument comprising a rechargeable power source
US20130243230A1 (en) * 2010-10-19 2013-09-19 Phonak Ag Hearing instrument comprising a rechargeable power source
US9392377B2 (en) 2010-12-20 2016-07-12 Earlens Corporation Anatomically customized ear canal hearing apparatus
US9930458B2 (en) 2014-07-14 2018-03-27 Earlens Corporation Sliding bias and peak limiting for optical hearing devices
US9924276B2 (en) 2014-11-26 2018-03-20 Earlens Corporation Adjustable venting for hearing instruments

Similar Documents

Publication Publication Date Title
US5047994A (en) Supersonic bone conduction hearing aid and method
US5061282A (en) Cochlear implant auditory prosthesis
US4652702A (en) Ear microphone utilizing vocal bone vibration and method of manufacture thereof
US6940989B1 (en) Direct tympanic drive via a floating filament assembly
US7239069B2 (en) Piezoelectric type vibrator, implantable hearing aid with the same, and method of implanting the same
US4539440A (en) In-canal hearing aid
US5447489A (en) Bone conduction hearing aid device
US20040202339A1 (en) Intrabody communication with ultrasound
US3947644A (en) Piezoelectric-type electroacoustic transducer
US4063048A (en) Implantable electronic hearing aid
US5897486A (en) Dual coil floating mass transducers
US5800336A (en) Advanced designs of floating mass transducers
US6643378B2 (en) Bone conduction hearing aid
US4638207A (en) Piezoelectric polymeric film balloon speaker
US6540661B1 (en) Arrangement for coupling of a driver to a coupling site of the ossicular chain
US6585637B2 (en) Method and apparatus for fixation type feedback reduction in implantable hearing assistance systems
US6162169A (en) Transducer arrangement for partially or fully implantable hearing aids
US6482144B1 (en) Arrangement for mechanical coupling of a driver to a coupling site of the ossicular chain
US4776322A (en) Implantable electromagnetic middle-ear bone-conduction hearing aid device
US2045404A (en) Piezoelectric vibrator device
US4606329A (en) Implantable electromagnetic middle-ear bone-conduction hearing aid device
US5913815A (en) Bone conducting floating mass transducers
US20070191673A1 (en) Bone conductive devices for improving hearing
US6775389B2 (en) Ear auxiliary microphone for behind the ear hearing prosthetic
US20060262954A1 (en) Bone vibrating speaker using the diaphragm and mobile phone thereby

Legal Events

Date Code Title Description
AS Assignment

Owner name: ADVANCED HEARING TECHNOLOGY INC., 1001 S.W. 5TH AV

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:EPLEY, JOHN M.;REEL/FRAME:004345/0523

Effective date: 19841206