| An optic pharyngeal manometric sensor for deglutition analysis. | |
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MedLine Citation:
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PMID: 17602300 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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A micro optic pharyngeal manometric sensor for deglutition analysis was constructed. The optical manometric sensor was composed of a fluid-sensitive and air-sensitive fiber-optic pressure sensor (extrinsic Fabry-Perot interferometric type) and a lateral pressure-sensitive attachment. The manometric sensor was circumferential type, and had a very small diameter (distal: 2.08 mm, mesial: 0.99 mm). The output current of the sensor was linearly related to the output of a conventional catheter-type solid-state pressure sensor over a range of -3.0 x 10(4) to 3.0 x 10(4) N/m(2). The time constants of responsiveness were 12.2 +/- 2.7 ms during rapid decompression and 32.1 +/- 1.6 ms after a rapid return to ambient pressure. The optical pharyngeal manometric sensor had similar response time characteristics as the naked optical sensor and the conventional solid-state sensor. During in vivo measurement, the waveform of the optical pharyngeal manometer output was almost similar to the waveform of the output of the conventional sensor. The optical manometer could sufficiently detect the lateral pressure and the suction pressure for bolus transit generated in the P-E segment. |
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Authors:
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Shuhei Takeuchi; Haruka Tohara; Hiroyuki Kudo; Kimio Otsuka; Hirokazu Saito; Hiroshi Uematsu; Kohji Mitsubayashi |
Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't |
Journal Detail:
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Title: Biomedical microdevices Volume: 9 ISSN: 1387-2176 ISO Abbreviation: Biomed Microdevices Publication Date: 2007 Dec |
Date Detail:
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Created Date: 2007-10-26 Completed Date: 2008-01-08 Revised Date: 2008-11-21 |
Medline Journal Info:
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Nlm Unique ID: 100887374 Medline TA: Biomed Microdevices Country: United States |
Other Details:
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Languages: eng Pagination: 893-9 Citation Subset: IM |
Affiliation:
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Department of Gerodontology, Division of Gerontology and Gerodontology, Graduate School, Tokyo Medical and Dental University, 1-5-45 Yushima, Tokyo 113-8510, Japan. |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Deglutition Disorders
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diagnosis*,
physiopathology* Diagnosis, Computer-Assisted / instrumentation*, methods* Equipment Design Equipment Failure Analysis Humans Manometry / instrumentation*, methods Optics and Photonics / instrumentation* Pharynx / physiopathology* Pressure Spectrum Analysis / instrumentation, methods Transducers |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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