WO2000052964A3 - Disposable hearing aid with integral power source - Google Patents

Disposable hearing aid with integral power source Download PDF

Info

Publication number
WO2000052964A3
WO2000052964A3 PCT/US2000/004963 US0004963W WO0052964A3 WO 2000052964 A3 WO2000052964 A3 WO 2000052964A3 US 0004963 W US0004963 W US 0004963W WO 0052964 A3 WO0052964 A3 WO 0052964A3
Authority
WO
WIPO (PCT)
Prior art keywords
battery
hearing aid
air
integral
power source
Prior art date
Application number
PCT/US2000/004963
Other languages
French (fr)
Other versions
WO2000052964A9 (en
WO2000052964A2 (en
Inventor
John Gregory Aceti
Walter Paul Sjursen
Marvin Allan Leedom
Derek Mahoney
Frederick J Fritz
Original Assignee
Sarnoff Corp
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
Application filed by Sarnoff Corp filed Critical Sarnoff Corp
Priority to EP00910366A priority Critical patent/EP1159855A2/en
Publication of WO2000052964A2 publication Critical patent/WO2000052964A2/en
Publication of WO2000052964A3 publication Critical patent/WO2000052964A3/en
Publication of WO2000052964A9 publication Critical patent/WO2000052964A9/en

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
    • H04R25/65—Housing parts, e.g. shells, tips or moulds, or their manufacture
    • H04R25/652—Ear tips; Ear moulds
    • H04R25/656—Non-customized, universal ear tips, i.e. ear tips which are not specifically adapted to the size or shape of the ear or ear canal
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/68—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient
    • A61B5/6801—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient specially adapted to be attached to or worn on the body surface
    • A61B5/6813—Specially adapted to be attached to a specific body part
    • A61B5/6814—Head
    • A61B5/6815—Ear
    • A61B5/6817—Ear canal
    • 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
    • H04R25/45—Prevention of acoustic reaction, i.e. acoustic oscillatory feedback
    • H04R25/456—Prevention of acoustic reaction, i.e. acoustic oscillatory feedback mechanically
    • 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
    • H04R25/602—Mounting or interconnection of hearing aid parts, e.g. inside tips, housings or to ossicles of batteries
    • 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
    • H04R25/603—Mounting or interconnection of hearing aid parts, e.g. inside tips, housings or to ossicles of mechanical or electronic switches or control elements
    • 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
    • H04R25/609—Mounting or interconnection of hearing aid parts, e.g. inside tips, housings or to ossicles of circuitry
    • 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
    • H04R25/65—Housing parts, e.g. shells, tips or moulds, or their manufacture
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2225/00—Details of deaf aids covered by H04R25/00, not provided for in any of its subgroups
    • H04R2225/31—Aspects of the use of accumulators in hearing aids, e.g. rechargeable batteries or fuel cells
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2225/00—Details of deaf aids covered by H04R25/00, not provided for in any of its subgroups
    • H04R2225/61—Aspects relating to mechanical or electronic switches or control elements, e.g. functioning
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2460/00—Details of hearing devices, i.e. of ear- or headphones covered by H04R1/10 or H04R5/033 but not provided for in any of their subgroups, or of hearing aids covered by H04R25/00 but not provided for in any of its subgroups
    • H04R2460/03—Aspects of the reduction of energy consumption in hearing devices
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2460/00—Details of hearing devices, i.e. of ear- or headphones covered by H04R1/10 or H04R5/033 but not provided for in any of their subgroups, or of hearing aids covered by H04R25/00 but not provided for in any of its subgroups
    • H04R2460/17—Hearing device specific tools used for storing or handling hearing devices or parts thereof, e.g. placement in the ear, replacement of cerumen barriers, repair, cleaning hearing devices
    • 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
    • H04R25/45—Prevention of acoustic reaction, i.e. acoustic oscillatory feedback
    • H04R25/453—Prevention of acoustic reaction, i.e. acoustic oscillatory feedback electronically
    • 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
    • H04R25/65—Housing parts, e.g. shells, tips or moulds, or their manufacture
    • H04R25/658—Manufacture of housing parts

Abstract

A hearing aid includes a microphone, signal processing circuitry, receiver and integral battery all mounted in a casing. The battery may be a metal air device. The battery may be activated by removing a tape which blocks air holes on the battery or, if the battery is sealed into the hearing aid, air-vent holes on the hearing aid. The hearing aid may also include an air-blocking mechanism which is activated when the hearing aid is inserted in the user's ear and deactivated when the hearing aid is removed. The assembled hearing aid may also be packaged in non-permeable packaging material to extinguish battery activity. The hearing aid may also include an electronic switch which monitors the battery potential to disconnect the battery from the hearing aid electronics when the battery is deprived of oxygen and which connects the battery to the electronics when oxygen is provided to the battery. In one embodiment of the invention, the integral battery is a rechargeable battery which is recharged via external contacts. In another embodiment, the battery is recharged using an induced alternating current potential which is rectified before being applied to the battery.
PCT/US2000/004963 1999-03-05 2000-02-28 Disposable hearing aid with integral power source WO2000052964A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP00910366A EP1159855A2 (en) 1999-03-05 2000-02-28 Disposable hearing aid with integral power source

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09/263,593 1999-03-05
US09/263,593 US6473511B1 (en) 1996-03-14 1999-03-05 Disposable hearing aid with integral power source

Publications (3)

Publication Number Publication Date
WO2000052964A2 WO2000052964A2 (en) 2000-09-08
WO2000052964A3 true WO2000052964A3 (en) 2001-04-05
WO2000052964A9 WO2000052964A9 (en) 2001-09-13

Family

ID=23002436

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2000/004963 WO2000052964A2 (en) 1999-03-05 2000-02-28 Disposable hearing aid with integral power source

Country Status (4)

Country Link
US (1) US6473511B1 (en)
EP (1) EP1159855A2 (en)
TW (1) TW471233B (en)
WO (1) WO2000052964A2 (en)

Families Citing this family (48)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7010137B1 (en) * 1997-03-12 2006-03-07 Sarnoff Corporation Hearing aid
US7664282B2 (en) * 1998-11-25 2010-02-16 Insound Medical, Inc. Sealing retainer for extended wear hearing devices
US6473513B1 (en) * 1999-06-08 2002-10-29 Insonus Medical, Inc. Extended wear canal hearing device
US7580537B2 (en) * 1998-11-25 2009-08-25 Insound Medical, Inc. Sealing retainer for extended wear hearing devices
US20060291683A1 (en) * 1998-11-25 2006-12-28 Insound Medical, Inc. Sealing retainer for extended wear hearing devices
US7379555B2 (en) * 1999-06-08 2008-05-27 Insound Medical, Inc. Precision micro-hole for extended life batteries
WO2001026175A1 (en) * 1999-10-06 2001-04-12 Sarnoff Corporation Metal-air battery device
US6567527B1 (en) * 2000-08-07 2003-05-20 Insound Medical, Inc. Elongated oval battery assembly for canal hearing device
US6498455B2 (en) 2001-02-22 2002-12-24 Gary Skuro Wireless battery charging system for existing hearing aids using a dynamic battery and a charging processor unit
DE10234713B3 (en) * 2002-07-30 2004-02-05 Siemens Audiologische Technik Gmbh Battery-operated hearing aid has gas exchange between battery and ambient air selectively blocked for halting self-charging process requiring oxygen
US7349741B2 (en) * 2002-10-11 2008-03-25 Advanced Bionics, Llc Cochlear implant sound processor with permanently integrated replenishable power source
US8811643B2 (en) * 2003-05-08 2014-08-19 Advanced Bionics Integrated cochlear implant headpiece
US7599508B1 (en) 2003-05-08 2009-10-06 Advanced Bionics, Llc Listening device cap
US8270647B2 (en) 2003-05-08 2012-09-18 Advanced Bionics, Llc Modular speech processor headpiece
CN100547583C (en) * 2003-08-14 2009-10-07 甲骨文国际公司 Database automatically and the method that dynamically provides
US7107088B2 (en) * 2003-08-25 2006-09-12 Sarnoff Corporation Pulse oximetry methods and apparatus for use within an auditory canal
US20050059870A1 (en) * 2003-08-25 2005-03-17 Aceti John Gregory Processing methods and apparatus for monitoring physiological parameters using physiological characteristics present within an auditory canal
US8457336B2 (en) 2004-02-05 2013-06-04 Insound Medical, Inc. Contamination resistant ports for hearing devices
US7298857B2 (en) * 2004-02-05 2007-11-20 Insound Medical, Inc. Extended wear canal device with common microphone-battery air cavity
DE602005027813D1 (en) * 2004-02-19 2011-06-16 Oticon As HEARING DEVICE WITH ANTENNA FOR RECEIVING AND SENDING ELECTROMAGNETIC SIGNALS AND ABSORBING BATTERY
US10154792B2 (en) 2005-03-01 2018-12-18 Checkpoint Surgical, Inc. Stimulation device adapter
US20110060238A1 (en) * 2005-03-01 2011-03-10 Checkpoint Surgical, Llc Systems and methods for intra-operative physiological functional stimulation
US20110060243A1 (en) * 2005-03-01 2011-03-10 Checkpoint Surgical, Llc Systems and methods for intra-operative regional neural stimulation
US20110060242A1 (en) * 2005-03-01 2011-03-10 Checkpoint Surgical, Llc Systems and methods for intra-operative stimulation within a surgical field
US7878981B2 (en) 2005-03-01 2011-02-01 Checkpoint Surgical, Llc Systems and methods for intra-operative stimulation
US20110054346A1 (en) * 2005-03-01 2011-03-03 Checkpoint Surgical, Llc Systems and methods for Intra-operative semi-quantitative threshold neural response testing related applications
US7896815B2 (en) * 2005-03-01 2011-03-01 Checkpoint Surgical, Llc Systems and methods for intra-operative stimulation
US20060200219A1 (en) * 2005-03-01 2006-09-07 Ndi Medical, Llc Systems and methods for differentiating and/or identifying tissue regions innervated by targeted nerves for diagnostic and/or therapeutic purposes
US7317234B2 (en) * 2005-07-20 2008-01-08 Douglas G Marsh Means of integrating a microphone in a standard integrated circuit process
US7756284B2 (en) * 2006-01-30 2010-07-13 Songbird Hearing, Inc. Hearing aid circuit with integrated switch and battery
US7756285B2 (en) 2006-01-30 2010-07-13 Songbird Hearing, Inc. Hearing aid with tuned microphone cavity
CN101389268B (en) * 2006-02-28 2011-12-14 皇家飞利浦电子股份有限公司 External device that continuously monitors for osdb and delivers audio stimulation therapy
CN101836463A (en) * 2007-08-14 2010-09-15 声音医药公司 Combined microphone and receiver assembly for extended wear canal hearing devices
DE102008009186B3 (en) 2008-02-15 2009-10-29 Siemens Medical Instruments Pte. Ltd. In-the-ear hearing aid with movable handle element and hearing aid system
US8953827B2 (en) * 2011-03-19 2015-02-10 Starkey Laboratories, Inc. Hearing aid with integrated telecoil and battery recharge coil
US8761423B2 (en) 2011-11-23 2014-06-24 Insound Medical, Inc. Canal hearing devices and batteries for use with same
US9604325B2 (en) 2011-11-23 2017-03-28 Phonak, LLC Canal hearing devices and batteries for use with same
US8682016B2 (en) 2011-11-23 2014-03-25 Insound Medical, Inc. Canal hearing devices and batteries for use with same
US8808906B2 (en) 2011-11-23 2014-08-19 Insound Medical, Inc. Canal hearing devices and batteries for use with same
JP6604708B2 (en) * 2013-10-02 2019-11-13 日東電工株式会社 hearing aid
JP2015073167A (en) * 2013-10-02 2015-04-16 日東電工株式会社 Hearing aid and hearing aid charging system
AU2015277299B2 (en) * 2014-06-18 2019-09-19 Zpower, Llc Hearing aid battery door module
MX361274B (en) 2014-06-18 2018-12-03 Zpower Llc Voltage regulator and control circuit for silver-zinc batteries in hearing instruments.
WO2016018200A1 (en) 2014-07-27 2016-02-04 Sonova Ag Batteries and battery manufacturing methods
CN104811835B (en) * 2015-05-12 2018-11-09 歌尔股份有限公司 Loud speaker module
EP3860153A1 (en) * 2020-01-31 2021-08-04 Oticon A/s Hearing aid including induction coil
EP4102858A1 (en) * 2021-06-07 2022-12-14 GN Hearing A/S Wirelessly rechargeable in-ear hearing device and charger for same
EP4235837A1 (en) * 2022-02-23 2023-08-30 Lang, Dr. Jürgen Erwin Electrochemical silicon air button cell

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997034443A1 (en) * 1996-03-14 1997-09-18 Sarnoff Corporation Disposable hearing aid
WO1997036456A1 (en) * 1996-03-26 1997-10-02 Sarnoff Corporation Battery and circuitry assembly

Family Cites Families (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3527901A (en) 1967-03-28 1970-09-08 Dahlberg Electronics Hearing aid having resilient housing
US3598928A (en) 1969-11-06 1971-08-10 Phonic Electronics Inc In ear hearing aid with removable mounting plate assembly
US3783201A (en) 1970-12-02 1974-01-01 Beltone Electronics Corp Miniature hearing aid structure
US4262062A (en) * 1980-03-24 1981-04-14 Timex Corporation Metal-air battery with environment control for intermittent high current demand
US4379988A (en) * 1981-01-19 1983-04-12 Patricio Mattatall Molded hearing aid and battery charger
US4539440A (en) 1983-05-16 1985-09-03 Michael Sciarra In-canal hearing aid
DE3336266A1 (en) 1983-10-05 1985-04-18 Siemens AG, 1000 Berlin und 8000 München HOERGERAET
US4712245A (en) * 1985-01-24 1987-12-08 Oticon Electronics A/S In-the-ear hearing aid with the outer wall formed by rupturing a two-component chamber
US4716985A (en) 1986-05-16 1988-01-05 Siemens Aktiengesellschaft In-the-ear hearing aid
US4870688A (en) 1986-05-27 1989-09-26 Barry Voroba Mass production auditory canal hearing aid
US5002151A (en) 1986-12-05 1991-03-26 Minnesota Mining And Manufacturing Company Ear piece having disposable, compressible polymeric foam sleeve
DE8816422U1 (en) 1988-05-06 1989-08-10 Siemens Ag, 1000 Berlin Und 8000 Muenchen, De
US4969534A (en) 1988-08-08 1990-11-13 Minnesota Mining And Manufacturing Company Hearing aid employing a viscoelastic material to adhere components to the casing
DE58909119D1 (en) 1989-07-26 1995-04-20 Siemens Audiologische Technik Method and device for producing a housing shell of an in-the-ear hearing aid, and housing shell produced by the method.
US5185802A (en) 1990-04-12 1993-02-09 Beltone Electronics Corporation Modular hearing aid system
JPH089891Y2 (en) * 1990-11-27 1996-03-21 リオン株式会社 Hearing aid battery storage
US5133016A (en) * 1991-03-15 1992-07-21 Wallace Clark Hearing aid with replaceable drying agent
US5210804A (en) * 1991-03-18 1993-05-11 Schmid Guenther W Solar powered hearing aid and reenergizer case
US5141455A (en) 1991-04-08 1992-08-25 Molex Incorporated Mounting of electronic components on substrates
US5249234A (en) * 1991-10-11 1993-09-28 Butler Michael J Cover for behind-the-ear type hearing aids and methods of making and using the same
ES2090524T3 (en) * 1992-09-15 1996-10-16 Electric Fuel Ltd REFUELING SYSTEM.
US6041128A (en) * 1994-01-31 2000-03-21 Rion Kabushiki Kaisha Battery receiving chamber and hearing aid
US5949895A (en) * 1995-09-07 1999-09-07 Symphonix Devices, Inc. Disposable audio processor for use with implanted hearing devices
US5724431A (en) * 1996-02-26 1998-03-03 Siemens Hearing Instruments, Inc. Zinc-air dry cell holder and hearing aid that uses it

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997034443A1 (en) * 1996-03-14 1997-09-18 Sarnoff Corporation Disposable hearing aid
WO1997036456A1 (en) * 1996-03-26 1997-10-02 Sarnoff Corporation Battery and circuitry assembly

Also Published As

Publication number Publication date
US6473511B1 (en) 2002-10-29
TW471233B (en) 2002-01-01
WO2000052964A9 (en) 2001-09-13
EP1159855A2 (en) 2001-12-05
WO2000052964A2 (en) 2000-09-08

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