DE3272457D1 - Transcutaneous signal transmission system - Google Patents

Transcutaneous signal transmission system

Info

Publication number
DE3272457D1
DE3272457D1 DE8282304921T DE3272457T DE3272457D1 DE 3272457 D1 DE3272457 D1 DE 3272457D1 DE 8282304921 T DE8282304921 T DE 8282304921T DE 3272457 T DE3272457 T DE 3272457T DE 3272457 D1 DE3272457 D1 DE 3272457D1
Authority
DE
Germany
Prior art keywords
signal transmission
transmission system
quality
transmitter
tuned circuit
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
Application number
DE8282304921T
Other languages
English (en)
Inventor
Ingeborg J Hochmair
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Application granted granted Critical
Publication of DE3272457D1 publication Critical patent/DE3272457D1/de
Expired legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS 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
    • A61F11/00—Methods or devices for treatment of the ears or hearing sense; Non-electric hearing aids; Methods or devices for enabling ear patients to achieve auditory perception through physiological senses other than hearing sense; Protective devices for the ears, carried on the body or in the hand
    • A61F11/04—Methods or devices for enabling ear patients to achieve auditory perception through physiological senses other than hearing sense, e.g. through the touch sense
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
    • A61N1/00—Electrotherapy; Circuits therefor
    • A61N1/18—Applying electric currents by contact electrodes
    • A61N1/32—Applying electric currents by contact electrodes alternating or intermittent currents
    • A61N1/36—Applying electric currents by contact electrodes alternating or intermittent currents for stimulation
    • A61N1/372—Arrangements in connection with the implantation of stimulators
    • A61N1/378—Electrical supply
    • A61N1/3787—Electrical supply from an external energy source
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S128/00—Surgery
    • Y10S128/903—Radio telemetry

Landscapes

  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Neurology (AREA)
  • Physiology (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Acoustics & Sound (AREA)
  • Biophysics (AREA)
  • Otolaryngology (AREA)
  • Psychology (AREA)
  • Radiology & Medical Imaging (AREA)
  • Vascular Medicine (AREA)
  • Electrotherapy Devices (AREA)
  • Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
  • Investigating Or Analysing Biological Materials (AREA)
  • Medicines Containing Antibodies Or Antigens For Use As Internal Diagnostic Agents (AREA)
  • Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
  • Measurement And Recording Of Electrical Phenomena And Electrical Characteristics Of The Living Body (AREA)
  • Near-Field Transmission Systems (AREA)
DE8282304921T 1981-09-18 1982-09-17 Transcutaneous signal transmission system Expired DE3272457D1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/303,590 US4441210A (en) 1981-09-18 1981-09-18 Transcutaneous signal transmission system and methods

Publications (1)

Publication Number Publication Date
DE3272457D1 true DE3272457D1 (en) 1986-09-11

Family

ID=23172790

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8282304921T Expired DE3272457D1 (en) 1981-09-18 1982-09-17 Transcutaneous signal transmission system

Country Status (10)

Country Link
US (1) US4441210A (de)
EP (1) EP0076070B1 (de)
JP (1) JPS58501457A (de)
AT (1) ATE21216T1 (de)
AU (1) AU551999B2 (de)
BR (1) BR8207862A (de)
CA (1) CA1192617A (de)
DE (1) DE3272457D1 (de)
DK (1) DK156324C (de)
WO (1) WO1983001006A1 (de)

Families Citing this family (106)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8301526D0 (en) * 1983-01-20 1983-02-23 Fourcin A J Apparatus for electrical stimulation of nerves
US4561443A (en) * 1983-03-08 1985-12-31 The Johns Hopkins University Coherent inductive communications link for biomedical applications
US4654880A (en) * 1983-12-09 1987-03-31 Minnesota Mining And Manufacturing Company Signal transmission system
US4741339A (en) * 1984-10-22 1988-05-03 Cochlear Pty. Limited Power transfer for implanted prostheses
AU581936B2 (en) * 1984-10-22 1989-03-09 Cochlear Limited Improvement in power transfer for implanted prostheses
AU5481786A (en) * 1985-03-20 1986-09-25 Hochmair, E.S. Transcutaneous power and signal transmission system
US4679560A (en) * 1985-04-02 1987-07-14 Board Of Trustees Of The Leland Stanford Junior University Wide band inductive transdermal power and data link
US4592359A (en) * 1985-04-02 1986-06-03 The Board Of Trustees Of The Leland Stanford Junior University Multi-channel implantable neural stimulator
US4667683A (en) * 1985-06-11 1987-05-26 Biolectron, Inc. Audiometer
FR2586932B1 (fr) * 1985-09-12 1989-03-03 Bertin & Cie Dispositif de stimulation electrique de tissus biologiques
US4706689A (en) * 1985-10-30 1987-11-17 Daniel Man Implantable homing device
US4918745A (en) * 1987-10-09 1990-04-17 Storz Instrument Company Multi-channel cochlear implant system
US4944301A (en) * 1988-06-16 1990-07-31 Cochlear Corporation Method for determining absolute current density through an implanted electrode
US5024224A (en) * 1988-09-01 1991-06-18 Storz Instrument Company Method of readout of implanted hearing aid device and apparatus therefor
US5085628A (en) * 1988-09-09 1992-02-04 Storz Instrument Company Implantable hearing aid coupler device
US4988333A (en) * 1988-09-09 1991-01-29 Storz Instrument Company Implantable middle ear hearing aid system and acoustic coupler therefor
US5042084A (en) * 1989-09-07 1991-08-20 Cochlear Pty. Limited Three wire system for Cochlear implant processor
US5603726A (en) * 1989-09-22 1997-02-18 Alfred E. Mann Foundation For Scientific Research Multichannel cochlear implant system including wearable speech processor
US5876425A (en) * 1989-09-22 1999-03-02 Advanced Bionics Corporation Power control loop for implantable tissue stimulator
GB9018660D0 (en) * 1990-08-24 1990-10-10 Imperial College Probe system
US5325873A (en) * 1992-07-23 1994-07-05 Abbott Laboratories Tube placement verifier system
US5559498A (en) * 1994-12-30 1996-09-24 Innotek Inc. Combination confinement and remote training system
JPH0938216A (ja) * 1995-08-01 1997-02-10 Nec Corp 電気刺激装置
AU708422B2 (en) * 1995-10-19 1999-08-05 Cochlear Pty. Limited Embedded data link and protocol
US6650870B2 (en) * 1995-12-15 2003-11-18 Innovision Research & Technology Plc Data communication apparatus
US5814095A (en) * 1996-09-18 1998-09-29 Implex Gmbh Spezialhorgerate Implantable microphone and implantable hearing aids utilizing same
US7799337B2 (en) 1997-07-21 2010-09-21 Levin Bruce H Method for directed intranasal administration of a composition
US6058330A (en) * 1998-03-06 2000-05-02 Dew Engineering And Development Limited Transcutaneous energy transfer device
DE19827898C1 (de) * 1998-06-23 1999-11-11 Hans Leysieffer Verfahren und Vorrichtung zur Versorgung eines teil- oder vollimplantierten aktiven Gerätes mit elektrischer Energie
US6364825B1 (en) 1998-09-24 2002-04-02 St. Croix Medical, Inc. Method and apparatus for improving signal quality in implantable hearing systems
US6149683A (en) 1998-10-05 2000-11-21 Kriton Medical, Inc. Power system for an implantable heart pump
EP1131133A4 (de) 1998-10-27 2004-07-28 Richard P Phillips System zur transkutanen energieübertragung mit klasse e doppelgleichrichtschaltung
DE19915846C1 (de) 1999-04-08 2000-08-31 Implex Hear Tech Ag Mindestens teilweise implantierbares System zur Rehabilitation einer Hörstörung
US6442434B1 (en) 1999-10-19 2002-08-27 Abiomed, Inc. Methods and apparatus for providing a sufficiently stable power to a load in an energy transfer system
US6358281B1 (en) 1999-11-29 2002-03-19 Epic Biosonics Inc. Totally implantable cochlear prosthesis
DE10015421C2 (de) 2000-03-28 2002-07-04 Implex Ag Hearing Technology I Teil- oder vollimplantierbares Hörsystem
DE10018334C1 (de) 2000-04-13 2002-02-28 Implex Hear Tech Ag Mindestens teilimplantierbares System zur Rehabilitation einer Hörstörung
DE10018360C2 (de) 2000-04-13 2002-10-10 Cochlear Ltd Mindestens teilimplantierbares System zur Rehabilitation einer Hörstörung
DE10018361C2 (de) 2000-04-13 2002-10-10 Cochlear Ltd Mindestens teilimplantierbares Cochlea-Implantat-System zur Rehabilitation einer Hörstörung
EP1275208B1 (de) * 2000-04-18 2004-10-06 Schleifring und Apparatebau GmbH Anordnung zur kontaktlosen übertragung elektrischer signale bzw. energie
DE10031832C2 (de) * 2000-06-30 2003-04-30 Cochlear Ltd Hörgerät zur Rehabilitation einer Hörstörung
DE10041727C2 (de) 2000-08-25 2003-04-10 Cochlear Ltd Implantierbares hermetisch dichtes Gehäuse für eine implantierbare medizinische Vorrichtung
DE10041728A1 (de) 2000-08-25 2002-03-21 Implex Hear Tech Ag Implantierbare medizinische Vorrichtung mit einem hermetisch dichten Gehäuse
US6591139B2 (en) * 2000-09-06 2003-07-08 Advanced Bionics Corporation Low-power, high-modulation-index amplifier for use in battery-powered device
DE10046938A1 (de) 2000-09-21 2002-04-25 Implex Ag Hearing Technology I Mindestens teilimplantierbares Hörsystem mit direkter mechanischer Stimulation eines lymphatischen Raums des Innenohres
WO2003037212A2 (en) * 2001-10-30 2003-05-08 Lesinski George S Implantation method for a hearing aid microactuator implanted into the cochlea
US6620094B2 (en) * 2001-11-21 2003-09-16 Otologics, Llc Method and apparatus for audio input to implantable hearing aids
US6879693B2 (en) * 2002-02-26 2005-04-12 Otologics, Llc. Method and system for external assessment of hearing aids that include implanted actuators
US7197152B2 (en) * 2002-02-26 2007-03-27 Otologics Llc Frequency response equalization system for hearing aid microphones
US20030161481A1 (en) * 2002-02-26 2003-08-28 Miller Douglas Alan Method and system for external assessment of hearing aids that include implanted actuators
US6712754B2 (en) 2002-02-26 2004-03-30 Otologics Llc Method and system for positioning implanted hearing aid actuators
US20030163021A1 (en) * 2002-02-26 2003-08-28 Miller Douglas Alan Method and system for external assessment of hearing aids that include implanted actuators
US7167750B2 (en) 2003-02-03 2007-01-23 Enteromedics, Inc. Obesity treatment with electrically induced vagal down regulation
US20040172084A1 (en) 2003-02-03 2004-09-02 Knudson Mark B. Method and apparatus for treatment of gastro-esophageal reflux disease (GERD)
US7844338B2 (en) 2003-02-03 2010-11-30 Enteromedics Inc. High frequency obesity treatment
US7286880B2 (en) * 2003-10-02 2007-10-23 Medtronic, Inc. System and method for transcutaneous energy transfer achieving high efficiency
US8140168B2 (en) 2003-10-02 2012-03-20 Medtronic, Inc. External power source for an implantable medical device having an adjustable carrier frequency and system and method related therefore
US20050075696A1 (en) 2003-10-02 2005-04-07 Medtronic, Inc. Inductively rechargeable external energy source, charger, system and method for a transcutaneous inductive charger for an implantable medical device
US7137946B2 (en) * 2003-12-11 2006-11-21 Otologics Llc Electrophysiological measurement method and system for positioning an implantable, hearing instrument transducer
US20050288740A1 (en) * 2004-06-24 2005-12-29 Ethicon Endo-Surgery, Inc. Low frequency transcutaneous telemetry to implanted medical device
US7599744B2 (en) * 2004-06-24 2009-10-06 Ethicon Endo-Surgery, Inc. Transcutaneous energy transfer primary coil with a high aspect ferrite core
US7599743B2 (en) * 2004-06-24 2009-10-06 Ethicon Endo-Surgery, Inc. Low frequency transcutaneous energy transfer to implanted medical device
EP1812104B1 (de) 2004-10-20 2012-11-21 Boston Scientific Limited Leitungslose herzstimulationssysteme
US7532933B2 (en) * 2004-10-20 2009-05-12 Boston Scientific Scimed, Inc. Leadless cardiac stimulation systems
US7647109B2 (en) * 2004-10-20 2010-01-12 Boston Scientific Scimed, Inc. Leadless cardiac stimulation systems
US7582052B2 (en) * 2005-04-27 2009-09-01 Otologics, Llc Implantable hearing aid actuator positioning
US7825543B2 (en) 2005-07-12 2010-11-02 Massachusetts Institute Of Technology Wireless energy transfer
CN102983639B (zh) 2005-07-12 2016-01-27 麻省理工学院 无线非辐射能量传递
US7822486B2 (en) 2005-08-17 2010-10-26 Enteromedics Inc. Custom sized neural electrodes
DE602006019309D1 (de) * 2005-12-09 2011-02-10 Boston Scient Scimed Inc Herzstimulationssystem
US8050774B2 (en) * 2005-12-22 2011-11-01 Boston Scientific Scimed, Inc. Electrode apparatus, systems and methods
US7937161B2 (en) * 2006-03-31 2011-05-03 Boston Scientific Scimed, Inc. Cardiac stimulation electrodes, delivery devices, and implantation configurations
US8290600B2 (en) * 2006-07-21 2012-10-16 Boston Scientific Scimed, Inc. Electrical stimulation of body tissue using interconnected electrode assemblies
US7840281B2 (en) * 2006-07-21 2010-11-23 Boston Scientific Scimed, Inc. Delivery of cardiac stimulation devices
DE102006035006A1 (de) * 2006-07-28 2008-02-07 Siemens Audiologische Technik Gmbh Verstärker für einen Radiofrequenzsender zum Übertragen eines Sendesignals an eine otologische Vorrichtung
US8644934B2 (en) * 2006-09-13 2014-02-04 Boston Scientific Scimed Inc. Cardiac stimulation using leadless electrode assemblies
US7818061B1 (en) 2006-10-13 2010-10-19 Advanced Bionics, Llc Systems and methods for detecting an error associated with an implantable device
US9162068B2 (en) 2007-07-16 2015-10-20 Boston Scientific Neuromodulation Corporation Energy efficient resonant driving circuit for magnetically coupled telemetry
US8738147B2 (en) * 2008-02-07 2014-05-27 Cardiac Pacemakers, Inc. Wireless tissue electrostimulation
US8473062B2 (en) * 2008-05-01 2013-06-25 Autonomic Technologies, Inc. Method and device for the treatment of headache
US8768469B2 (en) 2008-08-08 2014-07-01 Enteromedics Inc. Systems for regulation of blood pressure and heart rate
US8412336B2 (en) 2008-12-29 2013-04-02 Autonomic Technologies, Inc. Integrated delivery and visualization tool for a neuromodulation system
US9320908B2 (en) * 2009-01-15 2016-04-26 Autonomic Technologies, Inc. Approval per use implanted neurostimulator
US8494641B2 (en) 2009-04-22 2013-07-23 Autonomic Technologies, Inc. Implantable neurostimulator with integral hermetic electronic enclosure, circuit substrate, monolithic feed-through, lead assembly and anchoring mechanism
US20100185249A1 (en) * 2009-01-22 2010-07-22 Wingeier Brett M Method and Devices for Adrenal Stimulation
US8996121B2 (en) * 2009-07-10 2015-03-31 Cochlear Limited Varying the effective coil area for an inductive transcutaneous power link
US20110218622A1 (en) * 2010-03-05 2011-09-08 Micardia Corporation Induction activation of adjustable annuloplasty rings and other implantable devices
US8594806B2 (en) 2010-04-30 2013-11-26 Cyberonics, Inc. Recharging and communication lead for an implantable device
WO2012054622A2 (en) 2010-10-19 2012-04-26 Otologics, Llc Relay interface for connecting an implanted medical device to an external electronics device
WO2012087816A2 (en) 2010-12-20 2012-06-28 Abiomed, Inc. Method and apparatus for accurately tracking available charge in a transcutaneous energy transfer system
US8766788B2 (en) 2010-12-20 2014-07-01 Abiomed, Inc. Transcutaneous energy transfer system with vibration inducing warning circuitry
DK2654878T3 (da) 2010-12-20 2019-07-22 Abiomed Inc Transkutant energioverførselssystem med en flerhed af sekundære spoler
DK3485819T3 (da) 2011-04-14 2022-10-17 Abiomed Inc Transkutan energioverførselsspole med integreret radiofrekvensantenne
FR2980925B1 (fr) 2011-10-03 2014-05-09 Commissariat Energie Atomique Systeme de transfert d'energie par couplage electromagnetique
US9002468B2 (en) 2011-12-16 2015-04-07 Abiomed, Inc. Automatic power regulation for transcutaneous energy transfer charging system
US10149933B2 (en) 2014-07-25 2018-12-11 Minnetronix, Inc. Coil parameters and control
DE102015112097A1 (de) 2014-07-25 2016-01-28 Minnetronix, Inc. Leistungsskalierung
DE102016100476A1 (de) 2015-01-14 2016-07-14 Minnetronix, Inc. Dezentraler Transformator
DE102016100534A1 (de) 2015-01-16 2016-07-21 Vlad BLUVSHTEIN Datenübertragung in einem transkutanen Energieübertragungssystem
JP6358391B2 (ja) * 2015-04-09 2018-07-25 日産自動車株式会社 非接触給電システム
DE102016106657A1 (de) 2015-04-14 2016-10-20 Minnetronix, Inc. Repeater-resonanzkreis
US10348891B2 (en) 2015-09-06 2019-07-09 Deborah M. Manchester System for real time, remote access to and adjustment of patient hearing aid with patient in normal life environment
US10583301B2 (en) 2016-11-08 2020-03-10 Cardiac Pacemakers, Inc. Implantable medical device for atrial deployment
DE102018201030A1 (de) 2018-01-24 2019-07-25 Kardion Gmbh Magnetkuppelelement mit magnetischer Lagerungsfunktion
DE102018206724A1 (de) 2018-05-02 2019-11-07 Kardion Gmbh Energieübertragungssystem und Verfahren zur drahtlosen Energieübertragung
DE102018206727A1 (de) * 2018-05-02 2019-11-07 Kardion Gmbh Energieübertragungssystem und Empfangseinheit zur drahtlosen transkutanen Energieübertragung

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2182071A (en) * 1937-08-12 1939-12-05 Johnson Lab Inc Adjustable coupling system
US3209081A (en) * 1961-10-02 1965-09-28 Behrman A Ducote Subcutaneously implanted electronic device
US3195540A (en) * 1963-03-29 1965-07-20 Louis C Waller Power supply for body implanted instruments
US3357434A (en) * 1964-04-06 1967-12-12 Avco Corp Inductively linked receiver
JPS5168710A (en) * 1974-12-12 1976-06-14 Kyosan Electric Mfg Johodentatsuhoshiki oyobi sochi
JPS51135554A (en) * 1975-04-15 1976-11-24 Kawasaki Heavy Ind Ltd Method to transmit signals from revolving body to relative fixed secti on
JPS5310054U (de) * 1976-07-09 1978-01-27
CH657984A5 (de) * 1979-09-24 1986-10-15 Ingeborg Johanna Hochmair Deso Anordnung zur elektrischen stimulation eines rezeptors, empfangseinheit fuer die anordnung, uebertragereinheit fuer die anordnung und verfahren zur herstellung derselben.
JPH0367694B2 (de) * 1980-09-04 1991-10-23 Hohamaiaa Ingeborugu Yohanna

Also Published As

Publication number Publication date
BR8207862A (pt) 1983-08-30
JPS58501457A (ja) 1983-09-01
DK156324B (da) 1989-08-07
AU8904982A (en) 1983-04-08
EP0076070A1 (de) 1983-04-06
JPH059114B2 (de) 1993-02-04
DK156324C (da) 1990-01-02
AU551999B2 (en) 1986-05-15
DK199283D0 (da) 1983-05-04
CA1192617A (en) 1985-08-27
DK199283A (da) 1983-05-04
WO1983001006A1 (en) 1983-03-31
EP0076070B1 (de) 1986-08-06
US4441210A (en) 1984-04-03
ATE21216T1 (de) 1986-08-15

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