{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,15]],"date-time":"2026-09-15T01:03:49Z","timestamp":1789434229768,"version":"build-2803163510"},"reference-count":46,"publisher":"Wiley","license":[{"start":{"date-parts":[[2026,9,8]],"date-time":"2026-09-08T00:00:00Z","timestamp":1788825600000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"},{"start":{"date-parts":[[2026,9,8]],"date-time":"2026-09-08T00:00:00Z","timestamp":1788825600000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/doi.wiley.com\/10.1002\/tdm_license_1.1"}],"funder":[{"DOI":"10.13039\/100000049","name":"National Institute on Aging","doi-asserted-by":"publisher","award":["K76 AG079040"],"award-info":[{"award-number":["K76 AG079040"]}],"id":[{"id":"10.13039\/100000049","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["The Laryngoscope"],"abstract":"<jats:title>ABSTRACT<\/jats:title>\n                  <jats:sec>\n                    <jats:title>Objectives<\/jats:title>\n                    <jats:p>To trace the historical origins of the fiberoptic nasopharyngolaryngoscope (laryngoscope) and to shed light on the innovative scientists who developed this technology.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Data Sources<\/jats:title>\n                    <jats:p>Primary sources included original research articles and abstracts reporting the initial development of the fiberoptic laryngoscope and similar technologies, original documents from the University of Tokyo's Research Institute of Logopedics and Phoniatrics (RILP) Annual Bulletin, and an interview with the lead inventor.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Review Methods<\/jats:title>\n                    <jats:p>Available information was reviewed regarding: how and why the fiberoptic laryngoscope was developed, what technologies preceded this development, who the inventors were, what historical context this technology was shaped in, and its long\u2010term impact.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>The fiberoptic laryngoscope was invented in 1967 by Drs. Masayuki Sawashima, Hajime Hirose, and Osamu Fujimura at the University of Tokyo's RILP. This groundbreaking innovation arose during a wave of rapid technological advancement in Japan following World War II. Dr. Sawashima highlights that a key inspiration for the fiberoptic laryngoscope was the success of the fiberoptic bronchoscope, developed by Japanese physician\u2010scientist Dr. Shigeto Ikeda in 1962. The inventors of the fiberoptic laryngoscope reported the first real\u2010time images and videos of the glottis during unperturbed speech and breathing, revolutionizing understanding of laryngeal function and setting the stage for modern laryngology and speech language pathology. According to Dr. Sawashima, the team never patented their technology.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusion<\/jats:title>\n                    <jats:p>The flexible laryngoscope was invented in 1967 by Sawashima, Hirose, and Fujimura at the University of Tokyo RILP, a foundational contribution to modern laryngology that has gone largely unrecognized in English\u2010language literature.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Level of Evidence<\/jats:title>\n                    <jats:p>NA<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1002\/lary.70903","type":"journal-article","created":{"date-parts":[[2026,9,9]],"date-time":"2026-09-09T05:08:56Z","timestamp":1788930536000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Invention of the Flexible Fiberoptic Nasopharyngolaryngoscope: Perspectives From the East"],"prefix":"10.1002","author":[{"ORCID":"https:\/\/orcid.org\/0009-0007-4558-3907","authenticated-orcid":false,"given":"Carolyn J.","family":"Khoury","sequence":"first","affiliation":[{"name":"Sean Parker Institute for the Voice, Department of Otolaryngology\u2013Head and Neck Surgery Weill Cornell Medicine  New York New York USA"},{"name":"School of Medicine, New York Medical College  Valhalla New York USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-0608-7237","authenticated-orcid":false,"given":"Rumi","family":"Ueha","sequence":"additional","affiliation":[{"name":"Swallowing Center The University of Tokyo Hospital  Tokyo Japan"},{"name":"Department of Otolaryngology\u2014Head and Neck Surgery The University of Tokyo  Tokyo Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Tyler G.","family":"Chan","sequence":"additional","affiliation":[{"name":"Emory University School of Medicine  Atlanta Georgia USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Katherine","family":"Tai","sequence":"additional","affiliation":[{"name":"Sean Parker Institute for the Voice, Department of Otolaryngology\u2013Head and Neck Surgery Weill Cornell Medicine  New York New York USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Peak","family":"Woo","sequence":"additional","affiliation":[{"name":"Department of Otolaryngology\u2014Head &amp; Neck Surgery Icahn School of Medicine at Mount Sinai  New York New York USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Hiroshi","family":"Imagawa","sequence":"additional","affiliation":[{"name":"Department of Otolaryngology\u2014Head and Neck Surgery The University of Tokyo  Tokyo Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Kenji","family":"Kondo","sequence":"additional","affiliation":[{"name":"Department of Otolaryngology\u2014Head and Neck Surgery The University of Tokyo  Tokyo Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-1543-2634","authenticated-orcid":false,"given":"Ana\u00efs","family":"Rameau","sequence":"additional","affiliation":[{"name":"Sean Parker Institute for the Voice, Department of Otolaryngology\u2013Head and Neck Surgery Weill Cornell Medicine  New York New York USA"},{"name":"Department of Otolaryngology\u2014Head and Neck Surgery The University of Tokyo  Tokyo Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2026,9,8]]},"reference":[{"key":"e_1_2_10_2_1","first-page":"555","article-title":"Description of the Glottiscope","volume":"3","author":"Babington B. 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