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Electromechanical measurement of stapedius muscle/tendon activity

A technology of stapedius and skeletal muscle, applied in the field of hearing prosthesis system, which can solve the problems of difficult and reliable measurement of electrical measurement, etc.

Active Publication Date: 2015-07-01
MED EL ELEKTROMEDIZINISCHE GERAETE GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, eSRT electrical measurements are difficult to measure reliably; for example, movement artifacts of impedance probes can cause measurement artifacts
However, electromyographic (EMG) measurement of stapedius activity has proven to be rather difficult for various reasons

Method used

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  • Electromechanical measurement of stapedius muscle/tendon activity
  • Electromechanical measurement of stapedius muscle/tendon activity
  • Electromechanical measurement of stapedius muscle/tendon activity

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Embodiment Construction

[0017] Embodiments of the present invention relate to an electromechanical sensing device for measuring stapedius tissue activity (e.g., stapedius muscle activity and / or stapedius muscle activity), in particular, contraction of the stapedius muscle in response to loud noises . The static end of the sensor is configured to attach to a cone in the middle ear, and the dynamic end is configured to attach to the stapedius spund in the middle ear. Alternatively, the dynamic end may also be attached directly to the middle ear stapes, preferably the stapes head. When the stapedius tendon moves the dynamic end relative to the static end, the sensor device produces a corresponding electrical sensory signal output.

[0018] figure 2 Various structural features of a patient's middle ear 200 with a cochlear implant electrode 201 passing through an electrode opening 205 in the round window membrane on the outer surface of the patient's cochlea are shown. The stapedius tendon 203 is conn...

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Abstract

A device for measuring stapedius tissue activity uses a mechanoelectrical transducer having two ends. A static end is configured for attachment to the bony pyramid in the middle ear, and a dynamic end is configured for attachment to stapedius tissue in the middle ear. The transducer generates a corresponding electrical sensing signal output when the stapedius tissue moves the dynamic end relative to the static end.

Description

[0001] This application claims priority from German patent application 102012218153.8 filed on October 4, 2012, the content of which is hereby incorporated by reference in its entirety. technical field [0002] The present invention relates to a hearing prosthesis system, such as a cochlear implant system, and more precisely to the measurement of stapedius tissue activity for such systems (for example, the contraction and / or relaxation of the stapedius muscle and the stapedius muscular exercise). Background technique [0003] Most of the sound transmission process in the normal ear is as figure 1 As shown, passing through the outer ear 101 to the tympanic membrane (eardrum) 102, the tympanic membrane moves bones 103 in the middle ear (malleus, incus and stapes), which vibrate the oval and circular window openings of the cochlea 104. The cochlea 104 is an elongated tube that is helically wound about two and a half times along its axis. It includes an upper channel called th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B5/04A61B5/0492A61B5/296
CPCA61B5/125A61N1/36032A61B5/0492A61N1/36036A61B5/296H04R25/606H04R2225/67A61N1/36039A61N1/0541
Inventor 罗兰德·赫斯勒阿南丹·达纳辛格玛利亚·德尔卡门富恩特斯汉斯·威廉·保罗阿蒂拉·奥瓦里德特勒夫·贝伦德马雷克·瓦尔肯廷奥拉夫·施佩希特沃尔弗拉姆·施密特
Owner MED EL ELEKTROMEDIZINISCHE GERAETE GMBH