Implementation of implantable microphone in the middle ear cavity and telemetry module

Woo, SeongTak; Park, Il Hyung Luke; Cho, Hui-Sup; Song, Byung Seop

doi:10.1109/bmeicon.2012.6465420

Cited by 2 publications

(1 citation statement)

References 16 publications

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“…A different approach was proposed by Woo et al, who aimed to measure pressure variation inside the middle ear cavity due to the vibration of the eardrum. A membrane whose diameter was 10 mm and thickness equal to 20 µm, made of stainless steel, was used as a implanted acoustic sensor in the middle ear cavity [ 53 ].…”

Section: Sensing Devices In Healthcarementioning

confidence: 99%

Sensing Devices for Detecting and Processing Acoustic Signals in Healthcare

et al. 2022

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Acoustic signals are important markers to monitor physiological and pathological conditions, e.g., heart and respiratory sounds. The employment of traditional devices, such as stethoscopes, has been progressively superseded by new miniaturized devices, usually identified as microelectromechanical systems (MEMS). These tools are able to better detect the vibrational content of acoustic signals in order to provide a more reliable description of their features (e.g., amplitude, frequency bandwidth). Starting from the description of the structure and working principles of MEMS, we provide a review of their emerging applications in the healthcare field, discussing the advantages and limitations of each framework. Finally, we deliver a discussion on the lessons learned from the literature, and the open questions and challenges in the field that the scientific community must address in the near future.

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Section: Sensing Devices In Healthcarementioning

confidence: 99%

Sensing Devices for Detecting and Processing Acoustic Signals in Healthcare

et al. 2022

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A technical review and evaluation of implantable sensors for hearing devices

et al. 2018

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Most commercially available cochlear implants and hearing aids use microphones as sensors for capturing the external sound field. These microphones are in general located in an external element, which is also responsible for processing the sound signal. However, the presence of the external element is the cause of several problems such as discomfort, impossibility of being used during physical activities and sleeping, and social stigma. These limitations have driven studies with the goal of developing totally implantable hearing devices, and the design of an implantable sensor has been one of the main challenges to be overcome. Different designs of implantable sensors can be found in the literature and in some commercial implantable hearing aids, including different transduction mechanisms (capacitive, piezoelectric, electromagnetic, etc), configurations microphones, accelerometers, force sensor, etc) and locations (subcutaneous or middle ear). In this work, a detailed technical review of such designs is presented and a general classification is proposed. The technical characteristics of each sensors are presented and discussed in view of the main requirements for an implantable sensor for hearing devices, including sensitivity, internal noise, frequency bandwidth and energy consumption. The feasibility of implantation of each sensor is also evaluated and compared.

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Implementation of implantable microphone in the middle ear cavity and telemetry module

Cited by 2 publications

References 16 publications

Sensing Devices for Detecting and Processing Acoustic Signals in Healthcare

Sensing Devices for Detecting and Processing Acoustic Signals in Healthcare

A technical review and evaluation of implantable sensors for hearing devices

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