Fabrication and optimal design of differential electromagnetic transducer for implantable middle ear hearing device
A differential electromagnetic transducer (DET), with similar frequency characteristics to those of a normal middle ear, is designed and implemented for use in an implantable middle ear hearing device (IMEHD). To optimize the characteristics of the DET that depend on the electromagnetically forced v...
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| Veröffentlicht in: | Biosensors & bioelectronics 2006-05, Vol.21 (11), p.2170-2175 |
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| creator | Kim, Min-Kyu Park, Il-Yong Song, Byung-Scop Cho, Jin-Ho |
| description | A differential electromagnetic transducer (DET), with similar frequency characteristics to those of a normal middle ear, is designed and implemented for use in an implantable middle ear hearing device (IMEHD). To optimize the characteristics of the DET that depend on the electromagnetically forced vibration, a theoretical analysis is conducted to design the vibrating part. The electromagnetic force of the DET is simulated according to the design parameters of the coil size using a finite element analysis (FEA). As a result, the maximal vibration force is achieved when the optimal length and thickness of the cylindrical coil is 70% of the length of the magnets and 56% of their radius. The vibration characteristics of the DET are then simulated when applying the maximal force. The optimally designed DET is implemented using MEMS technology and vibration experiments carried out with the fabricated DET in an unloaded state. The vibrating displacement of the DET is about 200
nm within a range between 0.1 and 1.5
kHz when a current of 1
mA
rms is applied to the coil. To investigate the usefulness of the DET, in vitro and in vivo experiments are conducted using the ossicular chain of a cadaver and guinea pig, and the results verify that the implemented DET performs well as a transducer for an IMEHD. |
| doi_str_mv | 10.1016/j.bios.2005.10.003 |
| format | Article |
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nm within a range between 0.1 and 1.5
kHz when a current of 1
mA
rms is applied to the coil. To investigate the usefulness of the DET, in vitro and in vivo experiments are conducted using the ossicular chain of a cadaver and guinea pig, and the results verify that the implemented DET performs well as a transducer for an IMEHD.</description><identifier>ISSN: 0956-5663</identifier><identifier>EISSN: 1873-4235</identifier><identifier>DOI: 10.1016/j.bios.2005.10.003</identifier><identifier>PMID: 16298123</identifier><language>eng</language><publisher>Lausanne: Elsevier B.V</publisher><subject>Animals ; Biological and medical sciences ; Differential electromagnetic transducer ; Electromagnetic Phenomena ; FEA ; Finite Element Analysis ; Guinea Pigs ; Hearing Loss - diagnosis ; Humans ; Implantable middle ear hearing devices ; Medical sciences ; Ossicular Prosthesis ; Radiotherapy. Instrumental treatment. Physiotherapy. Reeducation. Rehabilitation, orthophony, crenotherapy. Diet therapy and various other treatments (general aspects) ; Technology. Biomaterials. Equipments. Material. Instrumentation ; Transducers ; Tympanic Membrane ; Vibration frequency characteristics</subject><ispartof>Biosensors & bioelectronics, 2006-05, Vol.21 (11), p.2170-2175</ispartof><rights>2005 Elsevier B.V.</rights><rights>2006 INIST-CNRS</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c345t-501e423ee3a8ab33296ebc7a45d2afe7a9067a35687e87581e1104b988694b6c3</citedby><cites>FETCH-LOGICAL-c345t-501e423ee3a8ab33296ebc7a45d2afe7a9067a35687e87581e1104b988694b6c3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://www.sciencedirect.com/science/article/pii/S0956566305002976$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,776,780,3536,27903,27904,65309</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=17667648$$DView record in Pascal Francis$$Hfree_for_read</backlink><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/16298123$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Kim, Min-Kyu</creatorcontrib><creatorcontrib>Park, Il-Yong</creatorcontrib><creatorcontrib>Song, Byung-Scop</creatorcontrib><creatorcontrib>Cho, Jin-Ho</creatorcontrib><title>Fabrication and optimal design of differential electromagnetic transducer for implantable middle ear hearing device</title><title>Biosensors & bioelectronics</title><addtitle>Biosens Bioelectron</addtitle><description>A differential electromagnetic transducer (DET), with similar frequency characteristics to those of a normal middle ear, is designed and implemented for use in an implantable middle ear hearing device (IMEHD). To optimize the characteristics of the DET that depend on the electromagnetically forced vibration, a theoretical analysis is conducted to design the vibrating part. The electromagnetic force of the DET is simulated according to the design parameters of the coil size using a finite element analysis (FEA). As a result, the maximal vibration force is achieved when the optimal length and thickness of the cylindrical coil is 70% of the length of the magnets and 56% of their radius. The vibration characteristics of the DET are then simulated when applying the maximal force. The optimally designed DET is implemented using MEMS technology and vibration experiments carried out with the fabricated DET in an unloaded state. The vibrating displacement of the DET is about 200
nm within a range between 0.1 and 1.5
kHz when a current of 1
mA
rms is applied to the coil. To investigate the usefulness of the DET, in vitro and in vivo experiments are conducted using the ossicular chain of a cadaver and guinea pig, and the results verify that the implemented DET performs well as a transducer for an IMEHD.</description><subject>Animals</subject><subject>Biological and medical sciences</subject><subject>Differential electromagnetic transducer</subject><subject>Electromagnetic Phenomena</subject><subject>FEA</subject><subject>Finite Element Analysis</subject><subject>Guinea Pigs</subject><subject>Hearing Loss - diagnosis</subject><subject>Humans</subject><subject>Implantable middle ear hearing devices</subject><subject>Medical sciences</subject><subject>Ossicular Prosthesis</subject><subject>Radiotherapy. Instrumental treatment. Physiotherapy. Reeducation. Rehabilitation, orthophony, crenotherapy. Diet therapy and various other treatments (general aspects)</subject><subject>Technology. Biomaterials. Equipments. Material. Instrumentation</subject><subject>Transducers</subject><subject>Tympanic Membrane</subject><subject>Vibration frequency characteristics</subject><issn>0956-5663</issn><issn>1873-4235</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2006</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNqFkU-LFDEQxYMo7uzqF_Agueitx6TT-QdeZHFdYcGLnkM6qR5r6E7GpGfBb78ZZmBveknB41ePynuEvONsyxlXn_bbEXPd9ozJJmwZEy_IhhstuqEX8iXZMCtVJ5USV-S61j1jTHPLXpMrrnpreC82pN75sWDwK-ZEfYo0H1Zc_EwjVNwlmicacZqgQFqxyTBDWEte_C7BioGuxacajwEKnXKhuBxmn1Y_zkAXjLEN8IX-bg-mXTN9xABvyKvJzxXeXuYN-XX39eftfffw49v32y8PXRCDXDvJOLSPAAhv_ChEbxWMQftBxt5PoL1lSnshldFgtDQcOGfDaI1RdhhVEDfk49n3UPKfI9TVLVgDzO1CyMfqlDa9EFz9F-R2GIzUtoH9GQwl11pgcofS0ip_HWfu1Inbu1Mn7tTJSWudtKX3F_fjuEB8XrmU0IAPF8DX4OepRRqwPnNaKa0G07jPZw5aaI8IxdWAkAJELK0VFzP-644nx1ernw</recordid><startdate>20060515</startdate><enddate>20060515</enddate><creator>Kim, Min-Kyu</creator><creator>Park, Il-Yong</creator><creator>Song, Byung-Scop</creator><creator>Cho, Jin-Ho</creator><general>Elsevier B.V</general><general>Elsevier Science</general><scope>IQODW</scope><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>7QO</scope><scope>8FD</scope><scope>FR3</scope><scope>P64</scope><scope>7X8</scope></search><sort><creationdate>20060515</creationdate><title>Fabrication and optimal design of differential electromagnetic transducer for implantable middle ear hearing device</title><author>Kim, Min-Kyu ; Park, Il-Yong ; Song, Byung-Scop ; Cho, Jin-Ho</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c345t-501e423ee3a8ab33296ebc7a45d2afe7a9067a35687e87581e1104b988694b6c3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2006</creationdate><topic>Animals</topic><topic>Biological and medical sciences</topic><topic>Differential electromagnetic transducer</topic><topic>Electromagnetic Phenomena</topic><topic>FEA</topic><topic>Finite Element Analysis</topic><topic>Guinea Pigs</topic><topic>Hearing Loss - diagnosis</topic><topic>Humans</topic><topic>Implantable middle ear hearing devices</topic><topic>Medical sciences</topic><topic>Ossicular Prosthesis</topic><topic>Radiotherapy. Instrumental treatment. Physiotherapy. Reeducation. Rehabilitation, orthophony, crenotherapy. Diet therapy and various other treatments (general aspects)</topic><topic>Technology. Biomaterials. Equipments. Material. Instrumentation</topic><topic>Transducers</topic><topic>Tympanic Membrane</topic><topic>Vibration frequency characteristics</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Kim, Min-Kyu</creatorcontrib><creatorcontrib>Park, Il-Yong</creatorcontrib><creatorcontrib>Song, Byung-Scop</creatorcontrib><creatorcontrib>Cho, Jin-Ho</creatorcontrib><collection>Pascal-Francis</collection><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>Biotechnology Research Abstracts</collection><collection>Technology Research Database</collection><collection>Engineering Research Database</collection><collection>Biotechnology and BioEngineering Abstracts</collection><collection>MEDLINE - Academic</collection><jtitle>Biosensors & bioelectronics</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Kim, Min-Kyu</au><au>Park, Il-Yong</au><au>Song, Byung-Scop</au><au>Cho, Jin-Ho</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Fabrication and optimal design of differential electromagnetic transducer for implantable middle ear hearing device</atitle><jtitle>Biosensors & bioelectronics</jtitle><addtitle>Biosens Bioelectron</addtitle><date>2006-05-15</date><risdate>2006</risdate><volume>21</volume><issue>11</issue><spage>2170</spage><epage>2175</epage><pages>2170-2175</pages><issn>0956-5663</issn><eissn>1873-4235</eissn><abstract>A differential electromagnetic transducer (DET), with similar frequency characteristics to those of a normal middle ear, is designed and implemented for use in an implantable middle ear hearing device (IMEHD). To optimize the characteristics of the DET that depend on the electromagnetically forced vibration, a theoretical analysis is conducted to design the vibrating part. The electromagnetic force of the DET is simulated according to the design parameters of the coil size using a finite element analysis (FEA). As a result, the maximal vibration force is achieved when the optimal length and thickness of the cylindrical coil is 70% of the length of the magnets and 56% of their radius. The vibration characteristics of the DET are then simulated when applying the maximal force. The optimally designed DET is implemented using MEMS technology and vibration experiments carried out with the fabricated DET in an unloaded state. The vibrating displacement of the DET is about 200
nm within a range between 0.1 and 1.5
kHz when a current of 1
mA
rms is applied to the coil. To investigate the usefulness of the DET, in vitro and in vivo experiments are conducted using the ossicular chain of a cadaver and guinea pig, and the results verify that the implemented DET performs well as a transducer for an IMEHD.</abstract><cop>Lausanne</cop><pub>Elsevier B.V</pub><pmid>16298123</pmid><doi>10.1016/j.bios.2005.10.003</doi><tpages>6</tpages></addata></record> |
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| source | MEDLINE; Elsevier ScienceDirect Journals |
| subjects | Animals Biological and medical sciences Differential electromagnetic transducer Electromagnetic Phenomena FEA Finite Element Analysis Guinea Pigs Hearing Loss - diagnosis Humans Implantable middle ear hearing devices Medical sciences Ossicular Prosthesis Radiotherapy. Instrumental treatment. Physiotherapy. Reeducation. Rehabilitation, orthophony, crenotherapy. Diet therapy and various other treatments (general aspects) Technology. Biomaterials. Equipments. Material. Instrumentation Transducers Tympanic Membrane Vibration frequency characteristics |
| title | Fabrication and optimal design of differential electromagnetic transducer for implantable middle ear hearing device |
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