Characterization of Ossicular Chain Vibration at the Umbo: Implications for a Middle Ear Microelectromechanical System Design
We propose the use of a microelectromechanical system (MEMS) accelerometer as a middle ear microphone for future totally implantable cochlear prostheses. The MEMS accelerometer would be attached to the umbo to detect and convert the natural bone vibration that occurs in response to external sounds i...
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creator | Young, Darrin J. Zurcher, Mark A. Trang, Tung Megerian, Cliff A. Ko, Wen H. |
description | We propose the use of a microelectromechanical system (MEMS)
accelerometer as a middle ear microphone for future totally implantable
cochlear prostheses. The MEMS accelerometer would be attached to the umbo to
detect and convert the natural bone vibration that occurs in response to
external sounds into an electrical signal that represents the acoustic
information. The signal could be further processed to stimulate cochlear
implant electrodes. To determine the feasibility of our proposal, we
conducted a study to investigate whether the characteristics of umbo
vibration along two orthogonal axes—one axis being perpendicular to
the tympanic membrane and the other axis being parallel to the tympanic
membrane plane but orthogonal to the long process of the
malleus—differ significantly enough to compromise the sensing
performance of the proposed accelerometer should a position misalignment
occur during the implant procedure. We used laser Doppler vibrometry to
measure the displacement of the umbo along the two orthogonal axes in 4
cadaveric temporal bones at multiple frequencies within the audible
spectrum. We found that the peak-to-peak displacement frequency response
along both axes was nearly flat from 250 Hz to 1 kHz, and it gradually
rolled off with a slope of approximately −20 dB and −40 dB per
decade above 1 kHz and 4 kHz, respectively. At each frequency, the
displacement exhibited a linear function of the input sound level with a
slope of 20 dB per decade. A comparison of measurements along the two axes
indicated a similar frequency response, with an average amplitude difference
of 20%. The characterization data suggest that the performance of a
miniature ossicular vibration-sensing device attached on the umbo would not
be degraded in the event of a position misalignment. The data also indicate
that a MEMS accelerometer needs to achieve a resolution of i g /√ Hz
to detect normal conversation. |
doi_str_mv | 10.1177/014556131008900107 |
format | Article |
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accelerometer as a middle ear microphone for future totally implantable
cochlear prostheses. The MEMS accelerometer would be attached to the umbo to
detect and convert the natural bone vibration that occurs in response to
external sounds into an electrical signal that represents the acoustic
information. The signal could be further processed to stimulate cochlear
implant electrodes. To determine the feasibility of our proposal, we
conducted a study to investigate whether the characteristics of umbo
vibration along two orthogonal axes—one axis being perpendicular to
the tympanic membrane and the other axis being parallel to the tympanic
membrane plane but orthogonal to the long process of the
malleus—differ significantly enough to compromise the sensing
performance of the proposed accelerometer should a position misalignment
occur during the implant procedure. We used laser Doppler vibrometry to
measure the displacement of the umbo along the two orthogonal axes in 4
cadaveric temporal bones at multiple frequencies within the audible
spectrum. We found that the peak-to-peak displacement frequency response
along both axes was nearly flat from 250 Hz to 1 kHz, and it gradually
rolled off with a slope of approximately −20 dB and −40 dB per
decade above 1 kHz and 4 kHz, respectively. At each frequency, the
displacement exhibited a linear function of the input sound level with a
slope of 20 dB per decade. A comparison of measurements along the two axes
indicated a similar frequency response, with an average amplitude difference
of 20%. The characterization data suggest that the performance of a
miniature ossicular vibration-sensing device attached on the umbo would not
be degraded in the event of a position misalignment. The data also indicate
that a MEMS accelerometer needs to achieve a resolution of i g /√ Hz
to detect normal conversation.</description><identifier>ISSN: 0145-5613</identifier><identifier>EISSN: 1942-7522</identifier><identifier>DOI: 10.1177/014556131008900107</identifier><identifier>PMID: 20155695</identifier><identifier>CODEN: ENTJDO</identifier><language>eng</language><publisher>Los Angeles, CA: SAGE Publications</publisher><subject>Acceleration ; Acoustic Stimulation ; Biomechanical Phenomena ; Care and treatment ; Cochlear Implants ; Diagnosis ; Ear diseases ; Ear Ossicles - physiology ; Ear, Middle - physiology ; Ears & hearing ; Health aspects ; Hearing aids ; Humans ; Microelectromechanical systems ; Otitis media ; Prosthesis Design ; Technology application ; Vibration</subject><ispartof>Ear, nose, & throat journal, 2010-01, Vol.89 (1), p.21-26</ispartof><rights>2010 SAGE Publications</rights><rights>COPYRIGHT 2010 Sage Publications, Inc.</rights><rights>Copyright Medquest Communications Inc. Jan 2010</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c549t-f69daada94e89b01eaedc03f7aacf39e597c1b2248449f5d105df692d99ee1533</citedby><cites>FETCH-LOGICAL-c549t-f69daada94e89b01eaedc03f7aacf39e597c1b2248449f5d105df692d99ee1533</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://journals.sagepub.com/doi/pdf/10.1177/014556131008900107$$EPDF$$P50$$Gsage$$H</linktopdf><linktohtml>$$Uhttps://journals.sagepub.com/doi/10.1177/014556131008900107$$EHTML$$P50$$Gsage$$H</linktohtml><link.rule.ids>314,780,784,21966,27853,27924,27925,44945,45333</link.rule.ids><linktorsrc>$$Uhttps://journals.sagepub.com/doi/full/10.1177/014556131008900107?utm_source=summon&utm_medium=discovery-provider$$EView_record_in_SAGE_Publications$$FView_record_in_$$GSAGE_Publications</linktorsrc><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/20155695$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Young, Darrin J.</creatorcontrib><creatorcontrib>Zurcher, Mark A.</creatorcontrib><creatorcontrib>Trang, Tung</creatorcontrib><creatorcontrib>Megerian, Cliff A.</creatorcontrib><creatorcontrib>Ko, Wen H.</creatorcontrib><title>Characterization of Ossicular Chain Vibration at the Umbo: Implications for a Middle Ear Microelectromechanical System Design</title><title>Ear, nose, & throat journal</title><addtitle>Ear Nose Throat J</addtitle><description>We propose the use of a microelectromechanical system (MEMS)
accelerometer as a middle ear microphone for future totally implantable
cochlear prostheses. The MEMS accelerometer would be attached to the umbo to
detect and convert the natural bone vibration that occurs in response to
external sounds into an electrical signal that represents the acoustic
information. The signal could be further processed to stimulate cochlear
implant electrodes. To determine the feasibility of our proposal, we
conducted a study to investigate whether the characteristics of umbo
vibration along two orthogonal axes—one axis being perpendicular to
the tympanic membrane and the other axis being parallel to the tympanic
membrane plane but orthogonal to the long process of the
malleus—differ significantly enough to compromise the sensing
performance of the proposed accelerometer should a position misalignment
occur during the implant procedure. We used laser Doppler vibrometry to
measure the displacement of the umbo along the two orthogonal axes in 4
cadaveric temporal bones at multiple frequencies within the audible
spectrum. We found that the peak-to-peak displacement frequency response
along both axes was nearly flat from 250 Hz to 1 kHz, and it gradually
rolled off with a slope of approximately −20 dB and −40 dB per
decade above 1 kHz and 4 kHz, respectively. At each frequency, the
displacement exhibited a linear function of the input sound level with a
slope of 20 dB per decade. A comparison of measurements along the two axes
indicated a similar frequency response, with an average amplitude difference
of 20%. The characterization data suggest that the performance of a
miniature ossicular vibration-sensing device attached on the umbo would not
be degraded in the event of a position misalignment. The data also indicate
that a MEMS accelerometer needs to achieve a resolution of i g /√ Hz
to detect normal conversation.</description><subject>Acceleration</subject><subject>Acoustic Stimulation</subject><subject>Biomechanical Phenomena</subject><subject>Care and treatment</subject><subject>Cochlear Implants</subject><subject>Diagnosis</subject><subject>Ear diseases</subject><subject>Ear Ossicles - physiology</subject><subject>Ear, Middle - physiology</subject><subject>Ears & hearing</subject><subject>Health aspects</subject><subject>Hearing aids</subject><subject>Humans</subject><subject>Microelectromechanical systems</subject><subject>Otitis media</subject><subject>Prosthesis Design</subject><subject>Technology application</subject><subject>Vibration</subject><issn>0145-5613</issn><issn>1942-7522</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2010</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><sourceid>ABUWG</sourceid><sourceid>AFKRA</sourceid><sourceid>AZQEC</sourceid><sourceid>BENPR</sourceid><sourceid>CCPQU</sourceid><sourceid>DWQXO</sourceid><recordid>eNp90k1v1DAQBmALgehS-AMckAUSnNLazteaW7UUqNSqByjXaGJPNq6ceLGdQ5H47zhN-SiskA-RPM87isZDyHPOjjiv62PGi7KseM4ZW0vGOKsfkBWXhcjqUoiHZDWDbBYH5EkI1yyZouKPyYFgPCVluSLfNz14UBG9-QbRuJG6jl6GYNRkwdNUNSP9Ylq_FCHS2CO9Glr3lp4NO2vUbSHQznkK9MJobZGepuiFUd6hRRW9G1D1MCZr6aebEHGg7zCY7fiUPOrABnx29z0kV-9PP28-ZueXH842J-eZKgsZs66SGkCDLHAtW8YRUCuWdzWA6nKJpawVb4Uo1kUhu1JzVuqUEVpKRF7m-SF5s_Tdefd1whCbwQSF1sKIbgpNnRdM5LxiSb78S167yY_p5xrBZL6ex5bQqwVtwWJjxs7FNMO5ZXMi-LpiVWqWVLZHbXFED9aN2Jl0fc8f7fHpaByM2ht4_UegR7CxD85Otw9yH4oFphcJwWPX7LwZwN80nDXzKjX_rlIKvbibxNQOqH9Ffu5OAscLCLDF32P6T8sfKgLO1Q</recordid><startdate>201001</startdate><enddate>201001</enddate><creator>Young, Darrin J.</creator><creator>Zurcher, Mark A.</creator><creator>Trang, Tung</creator><creator>Megerian, Cliff A.</creator><creator>Ko, Wen H.</creator><general>SAGE Publications</general><general>Sage Publications, Inc</general><general>SAGE PUBLICATIONS, INC</general><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>3V.</scope><scope>4T-</scope><scope>7RV</scope><scope>7X7</scope><scope>7XB</scope><scope>88E</scope><scope>8AO</scope><scope>8FI</scope><scope>8FJ</scope><scope>8FK</scope><scope>ABUWG</scope><scope>AFKRA</scope><scope>AZQEC</scope><scope>BENPR</scope><scope>CCPQU</scope><scope>DWQXO</scope><scope>FYUFA</scope><scope>GHDGH</scope><scope>K9.</scope><scope>KB0</scope><scope>M0S</scope><scope>M1P</scope><scope>NAPCQ</scope><scope>PIMPY</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>PRINS</scope><scope>7X8</scope></search><sort><creationdate>201001</creationdate><title>Characterization of Ossicular Chain Vibration at the Umbo: Implications for a Middle Ear Microelectromechanical System Design</title><author>Young, Darrin J. ; Zurcher, Mark A. ; Trang, Tung ; Megerian, Cliff A. ; Ko, Wen H.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c549t-f69daada94e89b01eaedc03f7aacf39e597c1b2248449f5d105df692d99ee1533</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2010</creationdate><topic>Acceleration</topic><topic>Acoustic Stimulation</topic><topic>Biomechanical Phenomena</topic><topic>Care and treatment</topic><topic>Cochlear Implants</topic><topic>Diagnosis</topic><topic>Ear diseases</topic><topic>Ear Ossicles - physiology</topic><topic>Ear, Middle - physiology</topic><topic>Ears & hearing</topic><topic>Health aspects</topic><topic>Hearing aids</topic><topic>Humans</topic><topic>Microelectromechanical systems</topic><topic>Otitis media</topic><topic>Prosthesis Design</topic><topic>Technology application</topic><topic>Vibration</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Young, Darrin J.</creatorcontrib><creatorcontrib>Zurcher, Mark A.</creatorcontrib><creatorcontrib>Trang, Tung</creatorcontrib><creatorcontrib>Megerian, Cliff A.</creatorcontrib><creatorcontrib>Ko, Wen H.</creatorcontrib><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>ProQuest Central (Corporate)</collection><collection>Docstoc</collection><collection>ProQuest Nursing and Allied Health Journals</collection><collection>ProQuest - Health & Medical Complete保健、医学与药学数据库</collection><collection>ProQuest Central (purchase pre-March 2016)</collection><collection>Medical Database (Alumni Edition)</collection><collection>ProQuest Pharma Collection</collection><collection>Hospital Premium Collection</collection><collection>Hospital Premium Collection (Alumni Edition)</collection><collection>ProQuest Central (Alumni) (purchase pre-March 2016)</collection><collection>ProQuest Central (Alumni)</collection><collection>ProQuest Central</collection><collection>ProQuest Central Essentials</collection><collection>ProQuest Central</collection><collection>ProQuest One Community College</collection><collection>ProQuest Central</collection><collection>Health Research Premium Collection</collection><collection>Health Research Premium Collection (Alumni)</collection><collection>ProQuest Health & Medical Complete (Alumni)</collection><collection>Nursing & Allied Health Database (Alumni Edition)</collection><collection>Health & Medical Collection (Alumni Edition)</collection><collection>PML(ProQuest Medical Library)</collection><collection>Nursing & Allied Health Premium</collection><collection>Publicly Available Content Database (Proquest) (PQ_SDU_P3)</collection><collection>ProQuest One Academic Eastern Edition (DO NOT USE)</collection><collection>ProQuest One Academic</collection><collection>ProQuest One Academic UKI Edition</collection><collection>ProQuest Central China</collection><collection>MEDLINE - Academic</collection><jtitle>Ear, nose, & throat journal</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>Young, Darrin J.</au><au>Zurcher, Mark A.</au><au>Trang, Tung</au><au>Megerian, Cliff A.</au><au>Ko, Wen H.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Characterization of Ossicular Chain Vibration at the Umbo: Implications for a Middle Ear Microelectromechanical System Design</atitle><jtitle>Ear, nose, & throat journal</jtitle><addtitle>Ear Nose Throat J</addtitle><date>2010-01</date><risdate>2010</risdate><volume>89</volume><issue>1</issue><spage>21</spage><epage>26</epage><pages>21-26</pages><issn>0145-5613</issn><eissn>1942-7522</eissn><coden>ENTJDO</coden><abstract>We propose the use of a microelectromechanical system (MEMS)
accelerometer as a middle ear microphone for future totally implantable
cochlear prostheses. The MEMS accelerometer would be attached to the umbo to
detect and convert the natural bone vibration that occurs in response to
external sounds into an electrical signal that represents the acoustic
information. The signal could be further processed to stimulate cochlear
implant electrodes. To determine the feasibility of our proposal, we
conducted a study to investigate whether the characteristics of umbo
vibration along two orthogonal axes—one axis being perpendicular to
the tympanic membrane and the other axis being parallel to the tympanic
membrane plane but orthogonal to the long process of the
malleus—differ significantly enough to compromise the sensing
performance of the proposed accelerometer should a position misalignment
occur during the implant procedure. We used laser Doppler vibrometry to
measure the displacement of the umbo along the two orthogonal axes in 4
cadaveric temporal bones at multiple frequencies within the audible
spectrum. We found that the peak-to-peak displacement frequency response
along both axes was nearly flat from 250 Hz to 1 kHz, and it gradually
rolled off with a slope of approximately −20 dB and −40 dB per
decade above 1 kHz and 4 kHz, respectively. At each frequency, the
displacement exhibited a linear function of the input sound level with a
slope of 20 dB per decade. A comparison of measurements along the two axes
indicated a similar frequency response, with an average amplitude difference
of 20%. The characterization data suggest that the performance of a
miniature ossicular vibration-sensing device attached on the umbo would not
be degraded in the event of a position misalignment. The data also indicate
that a MEMS accelerometer needs to achieve a resolution of i g /√ Hz
to detect normal conversation.</abstract><cop>Los Angeles, CA</cop><pub>SAGE Publications</pub><pmid>20155695</pmid><doi>10.1177/014556131008900107</doi><tpages>6</tpages><oa>free_for_read</oa></addata></record> |
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ispartof | Ear, nose, & throat journal, 2010-01, Vol.89 (1), p.21-26 |
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subjects | Acceleration Acoustic Stimulation Biomechanical Phenomena Care and treatment Cochlear Implants Diagnosis Ear diseases Ear Ossicles - physiology Ear, Middle - physiology Ears & hearing Health aspects Hearing aids Humans Microelectromechanical systems Otitis media Prosthesis Design Technology application Vibration |
title | Characterization of Ossicular Chain Vibration at the Umbo: Implications for a Middle Ear Microelectromechanical System Design |
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