An Artificial Larynx Built in TE Shunt Valve That Produces Substitute Voice by Only Patient's Own Expiration (Preliminary Study for Suitable Tone Pitch and Its Controllability)
A large portion of patients of larynx cancer tekes total laryngectomy and loses their original voice consequently. Some ways to obtain substitute voice for total laryngectomees have been presented, however, each of them cannot conquer inconveniences, tone quality, extremely low tone, monotonousness...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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The Japan Society of Mechanical Engineers
2013-11-01
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| Series: | Journal of Advanced Mechanical Design, Systems, and Manufacturing |
| Subjects: | |
| Online Access: | https://www.jstage.jst.go.jp/article/jamdsm/7/4/7_777/_pdf/-char/en |
| _version_ | 1818532741525798912 |
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| author | Itaru KOURAKATA Shuichi SAKAMOTO Yota NAKAO |
| author_facet | Itaru KOURAKATA Shuichi SAKAMOTO Yota NAKAO |
| author_sort | Itaru KOURAKATA |
| collection | DOAJ |
| description | A large portion of patients of larynx cancer tekes total laryngectomy and loses their original voice consequently. Some ways to obtain substitute voice for total laryngectomees have been presented, however, each of them cannot conquer inconveniences, tone quality, extremely low tone, monotonousness etc. We invented very simple, small enough to be built in TE (tracheaesophageal) shunt valve but functional substitute voice that is driven by patient's own expiration and its tone pitch can be controlled by expiratory pressure simultaneously. The new device has an outward-striking membrane as an oscillating valve and a set of piston-cylinder mechanism, which controls oscillator's tension and alters pitch of sound. As results of performance experiments applied to the prototype model made as twice scale as an actual dimension, the device produces the lowest sound frequency of 205 Hz and pitch range of 374 cent being approximately proportional to driving air pressure between 0.8 and 2.2 kPa. It is said that normal pitch of female voice is around 210 Hz, thus we consider the possibility of the device as a new substitute voice was shown that contributes to improvement of total laryngectomees' QOL particularly to female patients. |
| first_indexed | 2024-12-11T17:49:29Z |
| format | Article |
| id | doaj.art-d1b34284b7874dc2bff782d4260f0ea3 |
| institution | Directory Open Access Journal |
| issn | 1881-3054 |
| language | English |
| last_indexed | 2024-12-11T17:49:29Z |
| publishDate | 2013-11-01 |
| publisher | The Japan Society of Mechanical Engineers |
| record_format | Article |
| series | Journal of Advanced Mechanical Design, Systems, and Manufacturing |
| spelling | doaj.art-d1b34284b7874dc2bff782d4260f0ea32022-12-22T00:56:16ZengThe Japan Society of Mechanical EngineersJournal of Advanced Mechanical Design, Systems, and Manufacturing1881-30542013-11-017477779010.1299/jamdsm.7.777jamdsmAn Artificial Larynx Built in TE Shunt Valve That Produces Substitute Voice by Only Patient's Own Expiration (Preliminary Study for Suitable Tone Pitch and Its Controllability)Itaru KOURAKATA0Shuichi SAKAMOTO1Yota NAKAO2Institute for Research Collaboration and Promotion, Niigata UniversityDepartment of Mechanical and Production Engineering, Niigata UniversityGraduate School of Science and Technology, Niigata UniversityA large portion of patients of larynx cancer tekes total laryngectomy and loses their original voice consequently. Some ways to obtain substitute voice for total laryngectomees have been presented, however, each of them cannot conquer inconveniences, tone quality, extremely low tone, monotonousness etc. We invented very simple, small enough to be built in TE (tracheaesophageal) shunt valve but functional substitute voice that is driven by patient's own expiration and its tone pitch can be controlled by expiratory pressure simultaneously. The new device has an outward-striking membrane as an oscillating valve and a set of piston-cylinder mechanism, which controls oscillator's tension and alters pitch of sound. As results of performance experiments applied to the prototype model made as twice scale as an actual dimension, the device produces the lowest sound frequency of 205 Hz and pitch range of 374 cent being approximately proportional to driving air pressure between 0.8 and 2.2 kPa. It is said that normal pitch of female voice is around 210 Hz, thus we consider the possibility of the device as a new substitute voice was shown that contributes to improvement of total laryngectomees' QOL particularly to female patients.https://www.jstage.jst.go.jp/article/jamdsm/7/4/7_777/_pdf/-char/enwelfare engineeringbiomechanicssound and acousticssubstitute voiceartificial larynxand tracheoesophageal speech |
| spellingShingle | Itaru KOURAKATA Shuichi SAKAMOTO Yota NAKAO An Artificial Larynx Built in TE Shunt Valve That Produces Substitute Voice by Only Patient's Own Expiration (Preliminary Study for Suitable Tone Pitch and Its Controllability) Journal of Advanced Mechanical Design, Systems, and Manufacturing welfare engineering biomechanics sound and acoustics substitute voice artificial larynx and tracheoesophageal speech |
| title | An Artificial Larynx Built in TE Shunt Valve That Produces Substitute Voice by Only Patient's Own Expiration (Preliminary Study for Suitable Tone Pitch and Its Controllability) |
| title_full | An Artificial Larynx Built in TE Shunt Valve That Produces Substitute Voice by Only Patient's Own Expiration (Preliminary Study for Suitable Tone Pitch and Its Controllability) |
| title_fullStr | An Artificial Larynx Built in TE Shunt Valve That Produces Substitute Voice by Only Patient's Own Expiration (Preliminary Study for Suitable Tone Pitch and Its Controllability) |
| title_full_unstemmed | An Artificial Larynx Built in TE Shunt Valve That Produces Substitute Voice by Only Patient's Own Expiration (Preliminary Study for Suitable Tone Pitch and Its Controllability) |
| title_short | An Artificial Larynx Built in TE Shunt Valve That Produces Substitute Voice by Only Patient's Own Expiration (Preliminary Study for Suitable Tone Pitch and Its Controllability) |
| title_sort | artificial larynx built in te shunt valve that produces substitute voice by only patient apos s own expiration preliminary study for suitable tone pitch and its controllability |
| topic | welfare engineering biomechanics sound and acoustics substitute voice artificial larynx and tracheoesophageal speech |
| url | https://www.jstage.jst.go.jp/article/jamdsm/7/4/7_777/_pdf/-char/en |
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