EP1209946A2 - Dispositif et procédé pour démonstration préopératoire des prothèses auditives implantables - Google Patents

Dispositif et procédé pour démonstration préopératoire des prothèses auditives implantables Download PDF

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Publication number
EP1209946A2
EP1209946A2 EP01126691A EP01126691A EP1209946A2 EP 1209946 A2 EP1209946 A2 EP 1209946A2 EP 01126691 A EP01126691 A EP 01126691A EP 01126691 A EP01126691 A EP 01126691A EP 1209946 A2 EP1209946 A2 EP 1209946A2
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EP
European Patent Office
Prior art keywords
audio signal
signal processing
transducer
electromechanical transducer
processing unit
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.)
Withdrawn
Application number
EP01126691A
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German (de)
English (en)
Inventor
Bernd Dr. Waldmann
Hans Dr.-Ing. Leysieffer
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.)
Implex AG Hearing Technology
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Implex AG Hearing Technology
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 Implex AG Hearing Technology filed Critical Implex AG Hearing Technology
Publication of EP1209946A2 publication Critical patent/EP1209946A2/fr
Withdrawn legal-status Critical Current

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    • 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
    • H04R25/70—Adaptation of deaf aid to hearing loss, e.g. initial electronic fitting
    • 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
    • H04R25/50—Customised settings for obtaining desired overall acoustical characteristics
    • H04R25/502—Customised settings for obtaining desired overall acoustical characteristics using analog signal processing
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R25/00—Deaf-aid sets, i.e. electro-acoustic or electro-mechanical hearing aids; Electric tinnitus maskers providing an auditory perception
    • H04R25/60—Mounting or interconnection of hearing aid parts, e.g. inside tips, housings or to ossicles
    • H04R25/604—Mounting or interconnection of hearing aid parts, e.g. inside tips, housings or to ossicles of acoustic or vibrational transducers
    • H04R25/606—Mounting or interconnection of hearing aid parts, e.g. inside tips, housings or to ossicles of acoustic or vibrational transducers acting directly on the eardrum, the ossicles or the skull, e.g. mastoid, tooth, maxillary or mandibular bone, or mechanically stimulating the cochlea, e.g. at the oval window

Definitions

  • the present invention relates to a device for preoperative demonstration at least partially implantable hearing systems for the rehabilitation of hearing disorders with a electromechanical transducer that from the side of the outer ear canal with at least approximately the center of the eardrum and thus the end point of the hammer grip is non-invasively connectable to set the eardrum in mechanical vibrations, and an electronic audio signal generation unit.
  • the present concerns Invention a method for preoperative demonstration at least partially implantable hearing systems with an audio signal processing unit and one of the Audio signal processing unit controlled electromechanical converter, which is connected to a Preselected coupling point can in particular be coupled to the ossicular chain and the coupling point can cause mechanical vibrations.
  • the principle in the predominant embodiments is an ossicle of the middle ear or the inner ear directly via a mechanical or hydromechanical stimulus stimulate and not via the amplified acoustic signal of a conventional hearing aid, in which the amplified sound signal is fed to the external auditory canal.
  • the actor These electromechanical systems are stimulated with various physical Transducer principles implemented, such as by electromagnetic and piezoelectric Systems.
  • the advantage of this method is mainly that of conventional Hearing aids improved sound quality and in the case of fully implanted systems in invisibility seen the hearing prosthesis.
  • Such partially and fully implantable electromechanical Hearing aids have been described by H.P. Zenner et al (ENT 1998, 46: 844-852), H. Leysieffer et al. ("A fully implantable hearing aid for the hearing impaired: TICA LZ 3001 ", ENT 46: 853-863, 1998) and H.P. Zenner et al. (" Totally implantable hearing device for sensorineural hearing loss ", The Lancet, Vol. 352, Nov. 1998, No. 9142, Page 1751) and in numerous patents, including US-A-5 360 388, US-A-5 772 575, US-A-5 814 095 and US-A-5 984 859.
  • this object is achieved in a preoperative device Demonstration of at least partially implantable hearing systems for the rehabilitation of Hearing disorders with an electromechanical transducer from the side of the external ear canal forth with at least approximately the center of the eardrum and thus the End point of the hammer handle is non-invasively connectable to the eardrum in mechanical To vibrate, and an electronic audio signal generating unit, solved by a between the audio signal generating unit and the electromechanical converter Connected electronic audio signal processing unit for controlling the electromechanical Converter, which the audio signal processing electronics of each corresponds to implanting implant or the latter, in particular by software and / or Hardware and software, simulated.
  • the hearing impaired patient can expect the expected effect and the Sound impression of the implantable hearing system in question conveyed as realistically as possible become.
  • the audio signal generating unit is preferably provided with means for playing back a Data or sound carrier assigned.
  • a Data or sound carrier assigns to all types of signals that are commonly and familiarly used in audiology like pure sine tones, narrow and broadband noise, speech and music etc.
  • Data carriers or generation of these test signals also come with all known possibilities considered as analog and / or digital generation or synthesis, analog and / or digital filing in all known types of non-rewritable or rewritable analog and / or digital storage media such as Semiconductor memories, analog sound carriers (Magnetic tape), audio CD's, CD-Rom's etc.
  • different "Standard" parameter sets for setting the audio signal processing unit in which the individual parameters are coordinated with one another in an advantageous manner Be determined in advance and saved. The operator of the demonstration device can then select any of the saved parameter sets without it being an individual Setting individual parameters is also required to convey more or less optimal parameter settings no in-depth knowledge of the effects individual parameters or the interaction of several parameters with each other, so that the demonstration device is also less trained in this regard Staff can be served.
  • the audio signal processing unit preferably has a programmable processor unit on, in particular a personal computer (PC) or a digital signal processor (DSP).
  • PC personal computer
  • DSP digital signal processor
  • the term "personal computer” or “PC” used here is to be understood such that he also notebooks, laptops, etc. as well as any other “external” computer, i.e. of the Converter drivers include independent computers.
  • the programmable processor unit can perform the functions of both the audio signal generation unit as well as the audio signal processing unit.
  • the audio signal processing unit has a driver electronics for driving the electromechanical transducer, wherein then a digital / analog converter between the programmable processor unit and the driver electronics can be connected.
  • a driver electronics for driving the electromechanical transducer, wherein then a digital / analog converter between the programmable processor unit and the driver electronics can be connected.
  • programmable Processor unit a personal computer is provided, which functions both Audio signal generating unit and the audio signal processing unit executes the driver electronics and the digital / analog converter are integrated in one hardware interface be, which is then connected between the personal computer and the converter.
  • the programmable processor unit is a digital one Signal processor (DSP), so a particularly compact demonstration device can be implemented, if the driver electronics, the digital / analog converter and the digital signal processor are integrated in a hardware interface.
  • DSP digital one Signal processor
  • the driver electronics, the digital / analog converter and the digital signal processor are integrated in a hardware interface.
  • this hardware interface too can further facilitate a display for displaying audio signal generation and audio signal processing data be provided, which is also integrated into the hardware interface or that can be connected to it.
  • the audio signal processing unit has audio signal processing electronics as well has driver electronics for controlling the converter, as in the respective implanting implant are included, so these two assemblies can be advantageous Be integrated into an interface.
  • the electromechanical one Conveniently designed so that its mechanical source impedance in the entire spectral transmission range is significantly larger than the mechanical load impedance, which are formed by the biological system of the eardrum, ossicular chain and inner ear becomes.
  • the examination can be made even more comfortable for the patient if the electromechanical Transducers through the constructive design of the converter housing acoustically so is encapsulated that the sound signal emitted by the vibrating transducer structures is minimized so that at high stimulation levels an acoustic masking of the contralateral, not examined ear can be dispensed with.
  • the electromechanical converter can be based on the principle of electrodynamic, electromagnetic, magnetostrictive, capacitive or piezoelectric conversion based, where a electromechanical transducers operating according to the piezoelectric principle are preferred, because magnetic stray fields can be completely avoided in this way.
  • one with the electromechanical transducer couplable coupling element can be provided, which is from the outside through the outer auditory canal to at least approximately the center of the eardrum and thus to the end point the hammer handle can be placed non-invasively.
  • the coupling element is preferably as Rod-shaped component that is rigid in the axial direction, the component of the converter facing away from the injury-free, mechanical contact to the center of the Drumhead guaranteed, it proves to be particularly advantageous if the coupling element is designed to be easily bendable manually, so that it matches the individual geometric shapes of the outer ear canal can be adjusted.
  • the electromechanical converter is in a transducer housing to be inserted into the entrance area of the outer auditory canal whose geometric dimensions are selected so that the examining person also using a microscope a clear view of the center of the eardrum retains mechanically contacting end of the coupling element.
  • the coupling element is not mechanically fixed, but via a mechanical plug connection connected to the converter, so z.
  • different coupling elements realize that, for example for hygienic reasons, easily replaceable and as a disposable item are executable.
  • the electromechanical transducer is optionally connected to the mechanical coupling element designed so that the first mechanical resonance frequency on upper end of the spectral transmission range of ⁇ 10 kHz. Let it this way short settling times can be achieved due to the broadband nature.
  • a positioning device for positioning the Transducer provided with respect to the umbo, which allows the transducer, or if this is coupled to the coupling point via a coupling element, the effective end of the mechanical coupling element, for example one with the electromechanical transducer connected coupling rod, precisely to the destination.
  • a fixing device for the fixed, backlash-free Connection of the positioning device to the human skull is provided.
  • an intermediate member arranged so is designed and dimensioned so that there are quasi-stationary positioning settings from the positioning device transmits to the electromechanical transducer, but a transmission at least dynamic forces from the positioning device to the transducer and if necessary, the coupling element at least so far that the risk of a Middle or inner ear damage is significantly reduced.
  • the converter including the coupling element follows the relatively slow, in the present case called quasi-stationary changes in position caused by Actuation of the positioning device can be effected.
  • the doctor can use it Coupling element precise and free of relative movements to structures in the human Bring the body, especially the umbo, as the target point.
  • one unintended external influences usually jerky or intermittent, for example by bumping the positioning device by hand, an instrument or the like, dynamic forces acting on the positioning device Transducer and the coupling element kept at least to a considerable extent.
  • the intermediate link as Spring member has the spring link and the electromechanical Converter and the coupling element including spring / mass system preferably one Natural frequency in the range from 0.5 to 5 Hz.
  • the method according to the invention is thus carried out in two phases. So in one first phase on a signal memory for different sets of audiological adjustment parameters Output signals filed as an audio signal processing unit of the implanting hearing system. In a second phase, the actual demonstration phase, is then given to a hearing impaired patient who has the auditory impression of the implanting hearing system is to be conveyed, a transducer from the outside through the outside Ear canal non-invasively coupled to approximately the center of the eardrum, whereupon output signals stored on the signal memory are applied to the converter to vibrate the eardrum mechanically. In this way the implant functions can be non-invasive to a possible implant carrier and still be conveyed realistically.
  • Different settings of the implant can be simulated or demonstrate when output signals are applied to the converter as they are for different Sets of audiological fitting parameters were obtained.
  • the electromechanical transducer can be used directly or by means of a coupling element through the outer ear canal to the eardrum, at least approximately the center of the eardrum.
  • FIG. 1 schematically shown preoperative demonstration system has an electromechanical Transducer 10, whose mechanical vibrations on the output side a coupling element 12 to the center of the eardrum (umbo) 14 by direct mechanical Contact will be transferred.
  • the corresponding holding device of the converter and their connection is shown in FIG. 1 and is not shown with reference to FIGN. 5 and 6 explained in more detail.
  • the converter 10 is controlled by driver electronics, which are in a hardware interface 18 is housed.
  • This interface is digitally from a computer, e.g. staff Computer (PC) 20 e.g. controlled via a serial interface (e.g. RS 232, V.24) and contains a digital logic module (DIG) 22 for bidirectional data communication the PC and a D / A converter 24 with a downstream, the physical principle of electromechanical transducer 10 corresponding driver 16.
  • PC staff Computer
  • DIG digital logic module
  • the patient's individual hearing loss can be typically a keyboard 26 may be changed.
  • the simulation software preferably contains a module that the operator, e.g. the audiologist of an investigation team, user-friendly e.g. leads in dialogue.
  • the simulation software can be real Real-time operation (online) work and the audiological setting parameters fully according to all parameterization options of the corresponding hearing implant make available.
  • a second variant can provide that the operator has several parameter sets with different ones audiological adjustment profile are available and the operator the individually selected hearing damage according to the most suitable parameter set.
  • the arrangement can be such that the simulation of the Audio signal processing of the implant system in question takes place in that test and demonstration signals about the real audio signal processing of the implant system in question are passed and the output signals are stored on a signal memory become.
  • the output signals obtained are preferably digitized and corresponding digital data carriers. This process is different Repeating sets of audiological adjustment parameters.
  • On the latch e.g. one CD-Rom, these preprocessed audio data sets are then available offline Operator of the demonstration device can select user-guided.
  • the audiological, individual adaptation to the individual Hearing damage can be done interactively and iteratively in communication with the patient, such as this is known to be the case with an audiological adaptation process of a conventional hearing aid is common.
  • the patient concerned can also actively participate in this adaptation process Intervene in changing parameters.
  • the audio test signals necessary for audiological adaptation are generated by the computer 20 itself or are prepared digitally in the computer stored or can by suitable data or sound carriers 28 (audio CD playback devices, Magnetic tape devices and the like) via appropriate interfaces to the Calculator can be imported.
  • FIG. 2 schematically shown variant is not an external computer, such as the one shown in FIG. 1 shown PC 20, but are all described above Simulation methods and their operation and adaptation combined in a device 30, which contains an operating unit 26 (e.g. keyboard) and a hardware unit 28.
  • the hardware unit 28 has a digital signal processor (DSP) 32, which fully performs the simulation and audiological adjustment tasks described above extensively realized.
  • DSP digital signal processor
  • Analogous to the embodiment according to FIG. 1 are in the device 30, a D / A converter 24 and a driver 16 are provided, by means of which the data from the Signal processor 32 generated digital output signals converted into analog signals, amplified and applied to the electromechanical transducer 10.
  • the device 30 has a digital logic module (DIG) 22, the one preferably represents bidirectional data communication interface, on the one hand Setting parameters and data commands as well as externally generated audio test signals from one Playback device 28 to the digital signal processor (DSP) 32 to be able to on the other hand also signals generated by the digital signal processor (DSP) 32 for the purpose facilitated user guidance and for documentation purposes to a not shown To transmit display and / or recording device.
  • DIG digital logic module
  • the preoperative demonstration system can be used to simulate the hearing aid to be implanted also be designed so that the audio signal processing unit for controlling the electromechanical Converter has audio signal processing electronics, as in the implanting hearing aid is included.
  • This implementation variant of the one proposed here Demonstration system is shown in FIG. 3 illustrates.
  • the implant electronics 34 i.e. the audio signal processing and the converter driver of the relevant implant system (IMP)
  • IMP relevant implant system
  • a demonstration of the proposed implant system is now online possible with the 100% identical target hardware and software 34.
  • the control of the implant hard and software 34 and the delivery of the appropriate audio test and demonstration signals is advantageously carried out via a bidirectional interface (DIG) 22, which also communicates bidirectionally with a computer 20 (e.g. PC).
  • DIG bidirectional interface
  • a computer 20 e.g. PC
  • the individual audiological Adaptation of the IMP system to the hearing loss concerned and the generation of the Audio test and demonstration signals are carried out here in exactly the same way as those described above Variants.
  • FIG. 4 schematically shown further implementation variant largely corresponds to that Variant according to FIG. 3, only as shown in FIG. 2 no external computer (PC) used.
  • the device 30 contains a microcontroller or microcomputer ( ⁇ C) 36 which is operated by an operating unit, e.g. Keyboard 26 is controlled.
  • ⁇ C microcontroller or microcomputer
  • a display (not shown) can also be provided for user guidance.
  • the Controller ( ⁇ C) 36 controls the IMP system bidirectionally.
  • the individual audiological Adaptation of the IMP system to the hearing loss concerned and the generation of the Audio test and demonstration signals are carried out here in exactly the same way as those described above Variants.
  • the provision of the audio test and demonstration signals is also not here shown, but can be according to the in FIG. 1 embodiment can be realized.
  • FIG. 5 shows a positioning system 40 as described in DE 196 18 945 A1 and that can be used advantageously with the demonstration system explained here can.
  • the positioning system 40 essentially consists of a linear axis arrangement 42, a clampable ball joint 44 and a base 46 together.
  • a slide 50 is guided without play in a linear guide 48 of the linear axis arrangement 42, which can be moved via a threaded spindle 52.
  • a knob 54 is fixed to the Threaded spindle 52 connected.
  • the pitch of the threaded spindle 52 is self-locking designed so that the carriage 50 is not in the linear guide 48 due to its Weight force moves automatically.
  • the travel path of the slide 50 in the linear guide 48 is defined by two end stops 56, 58 limited.
  • it guides the threaded spindle 52 parallel to the linear guide 48, but on the other hand also prevents that by unscrewing the spindle 52 too much Carriage 50 can slide out of the linear guide 48. Accordingly, one prevents as a lower one End stop serving end face 58 at the lower end of the rotary knob 54 is too wide Screwing in the threaded spindle 52 and thus sliding out the slide 50 on the opposite one End of the linear guide 48.
  • the carriage 50 has a corresponding receptacle 62, in which the in the FIGN. 1 to 4 shown electromechanical transducer 10 used manually and without play or from it can be removed.
  • the receptacle 62 for the converter 10 has an opening 64 for the coupling element 12 connected to the converter 10 inserted therein Acting end 66 of the coupling element 12 is thus parallel to when the rotary knob 54 is turned Linear guide can be positioned in the axial direction 68 to a body-fixed target point 14 in the body 70.
  • the linear axis 42 including threaded spindle 52, rotary knob 54, slide 50 and in the Recording 62 inserted and held there converter 10 is with a connecting element 72 firmly connected to a housing 74 of the clampable ball joint 44.
  • the ball joint 44 has a ball 76 which is fixedly connected to the base 46 via a column 80 stands and which is clamped by means of a clamping screw 78 with respect to the housing 74 can be.
  • the positioning system 40 can be firmly connected to suitable holders via the base 46. After attaching one of these brackets to the body, position the bracket on the bracket attached system and subsequent clamping of the clamping screw 78 is thus one exact, play-free positioning of the free end 66 to a fixed target point 14 possible, with possibly risky relative movements between body and free Acting 66 of the coupling element can be avoided.
  • the connecting element can be released by loosening the clamping screw 78 of the ball joint 44 72 and the linear axis 42 attached to it and the converter inserted in the slide 50 with the coupling element 12 coupled to it together with its free end 66 around the Center of the ball 76 of the ball joint 44 corresponding to all three rotational degrees of freedom turn in room 82, 83, 84.
  • the shown combination of a clampable ball joint 44 and the linear axis 42 fixedly attached to it enables the four-axis positioning of the free effective end 66 of the selected coupling element 12 corresponding to the translational 68 and the three rotational degrees of freedom 82, 83, 84 any body-fixed target point 14.
  • FIG. 6 is a preferred combination of the positioning system 40 according to FIG. 5 and a head holder 86 for positioning and fixing the transducer or the coupling element of the demonstration system explained here.
  • the positioning system 40 with its base 46 firmly connected to a head holder 86.
  • the opening width 88 of the head holder is preferably about 200 mm, and it can be over a Adjust rotary knob 90 and an internal screw drive as desired and without play by two holding arms 92 and 94 towards each other (closing) or away from each other (opening) be moved.
  • the rotary knob 90 for setting the opening width 88 can either by the wearer of the head holder 86 himself or a qualified specialist (doctor, assistant) are operated to clamp the head holder 86 on the patient's head by bilateral clamping Fasten.
  • the positioning system 40 is fixed to one of the two with its base 46 Mount arms (arm 92) attached. This side is called the working side of the head holder designated.
  • a conical holding element 96 can e.g. be designed like an ear speculum that cardanic if necessary to compensate for small spatial angles in the holding arm 92 can be stored. It is under visual control if necessary with the help of a Microscope inserted into the wearer's outer ear canal (patient).
  • the conical holding element 96 also has a conical inner bore 98, the space for the free end 66 of the coupling element 12 clamped in the positioning system 40 and the provides visual control.
  • the positioning system 40 is arranged on the head holder 86 that the optical axis 102 of the microscope or the naked eye 104 is not from Positioning system 40 itself or its components is covered.
  • a second conical holder 96 or a half-shell-shaped capsule element 100 is attached, which is also inserted there into the ear canal or via the auricle of the opposite ear is placed.
  • the free-acting 66 of the coupling element 12 fastened in the positioning system 40 without play and with avoidance of relative movements between the skull and the skull-fixed target point 14 become.
  • the set can be set via the mentioned clamping device of the positioning system Fix the position of the positioning system.
  • FIG. 7 is a further embodiment of the device explained here for preoperative Demonstration illustrates in which the converter 10 via an intermediate member 106 is connected to a total of 40 positioning device.
  • the positioning device 40 is in turn attached to a fixing device only indicated at 108, which allows the positioning device 40 to be fixed on the human skull without play to tie.
  • the positioning device 40 is provided with a base 110 coupled to the fixing device 108.
  • the base 110 carries a clampable ball joint 44 which has a joint ball 76 and an associated one Has ball receptacle 74.
  • the ball joint 44 can be fastened by means of a clamping screw 78 block in a position by means of a linear guide firmly connected to the joint ball 76 48 can be set.
  • On the linear guide 48 there is an adjustable length transverse support arm 112 attached. The set length of the support arm 112 is fixed by means of a clamping screw 114.
  • a linear actuator 116 engages the end of the support arm 112. This is on your in the FIG.
  • the converter 10 is connected to the slide 118 via the intermediate member 106.
  • the linear actuator 116 can be used to move the converter 10 via the slide 118 and the intermediate member 106 can be adjusted sensitively in the longitudinal direction of the coupling rod 12.
  • the linear actuating device 116 can in particular be a hydraulic one, not shown in any more detail
  • An ear funnel 96 is also attached to the base 110 in an easily removable manner.
  • the ear speculum 96 serves one with the base 110 and the ear speculum 96 cooperating clamp 124.
  • the ear speculum 96 takes the one remote from the transducer 10 Part of the coupling rod 12, the longitudinal axis of the coupling rod 12 with the Longitudinal axis of the ear speculum can be aligned. If necessary, the ear speculum 96 gimbally mounted on the base 110 to compensate for small spatial angles.
  • the linear adjusting device 116 can be moved around the center of the joint ball 76 in all three rotational degrees of freedom of space rotate.
  • the mutual distance between the longitudinal axes of linear guide 48 and coupling rod 12 can be adjusted with the clamping screw 114 loosened.
  • Adjusting the linear actuating device 116 is thus an exact, play-free positioning of the expediently spherical free-acting 66 of the coupling rod 12 for umbo as a body-fixed Target point possible.
  • the position of the free-acting end 66 can be, for example, by a microscope can be checked.
  • mutually displacing the coupling rod 12 and positioning device 40 ensures that the optical axis 102 of the microscope or the naked eye 104 of the doctor (FIG. 6) not from the positioning system itself or whose components are covered.
  • the intermediate member 106 consists of two simple spiral springs arranged in parallel, of which only one can be seen in the figure while the other runs behind it, offset perpendicular to the image plane.
  • the Spring / mass system which the intermediate member 106 and the electromechanical converter 10 and the coupling rod 12 is preferably designed so that it is a proprietary or resonance frequency (or the lowest in the case of several natural frequencies first natural frequency) in the range from 0.5 to 5 Hz. This creates dynamic forces with higher than this natural frequency, which can be caused, for example, by accidental impacts on the Positioning device 40 can occur, if at all, only significantly weakened transferred from the positioning device 40 to the coupling rod 12.
  • the coupling rod 12 however, normally makes the quasi-stationary positioning settings of the positioning device 40 with. However, if the destination is accidentally placed when positioning the transducer 10 is approached too far, the bending springs forming the intermediate member 106 can evade and thereby counteract damage to the middle and / or inner ear.
  • the intermediate link 106 is basically also constructed in a different way can be.
  • the intermediate member 106 can be a force limiter, for example in Form of a friction or induction clutch, contained, the forces only up to a predetermined passes the upper limit.

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  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Neurosurgery (AREA)
  • Otolaryngology (AREA)
  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Prostheses (AREA)
EP01126691A 2000-11-21 2001-11-08 Dispositif et procédé pour démonstration préopératoire des prothèses auditives implantables Withdrawn EP1209946A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10057584 2000-11-21
DE10057584A DE10057584A1 (de) 2000-11-21 2000-11-21 Gerät zür präoperativen Demonstration implantierbarer Hörsysteme

Publications (1)

Publication Number Publication Date
EP1209946A2 true EP1209946A2 (fr) 2002-05-29

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Application Number Title Priority Date Filing Date
EP01126691A Withdrawn EP1209946A2 (fr) 2000-11-21 2001-11-08 Dispositif et procédé pour démonstration préopératoire des prothèses auditives implantables

Country Status (4)

Country Link
US (1) US6620093B2 (fr)
EP (1) EP1209946A2 (fr)
CA (1) CA2361445A1 (fr)
DE (1) DE10057584A1 (fr)

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DE102005034381A1 (de) * 2005-07-22 2007-01-25 Siemens Audiologische Technik Gmbh Verfahren zum Darbieten von Funktionsmöglichkeiten eines Hörgerätsystems und entsprechendes Hörgerätesysstem

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US7273447B2 (en) * 2004-04-09 2007-09-25 Otologics, Llc Implantable hearing aid transducer retention apparatus
US20070213788A1 (en) * 2003-09-19 2007-09-13 Osberger Mary J Electrical stimulation of the inner ear in patients with unilateral hearing loss
KR100661313B1 (ko) * 2003-12-03 2006-12-27 한국전자통신연구원 평생 번호를 사용한 이동성 제공이 가능한 ｓｉｐ 기반의멀티미디어 통신 시스템 및 이동성 제공 방법
US7564980B2 (en) * 2005-04-21 2009-07-21 Sensimetrics Corporation System and method for immersive simulation of hearing loss and auditory prostheses
US8920343B2 (en) 2006-03-23 2014-12-30 Michael Edward Sabatino Apparatus for acquiring and processing of physiological auditory signals
US9020613B2 (en) 2012-05-01 2015-04-28 The Johns Hopkins University Method and apparatus for robotically assisted cochlear implant surgery
CN104918196B (zh) * 2015-02-13 2017-11-17 中国矿业大学 基于激励鼓膜的作动器及其助听装置
US11253193B2 (en) * 2016-11-08 2022-02-22 Cochlear Limited Utilization of vocal acoustic biomarkers for assistive listening device utilization
CN107204143A (zh) * 2017-06-16 2017-09-26 张伟 磁场对电流作用轨道滚筒式便捷直观演示实验装置
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DE10057584A1 (de) 2002-06-06

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