...A single-tube stethoscope (monaural type) similar to Laennec's wooden stethoscope is still used today as the Traube stethoscope, which is used to listen to the fetal heartbeat from above the abdomen of a pregnant woman. The binaural type, which is the most widely used today, was invented in 1854 by the American George Philip Cammann (1804-1863). It consists of a head that converts vibrations on the surface of the body into sound, and a tube made of rubber or polymer material that guides the sound to the ear without attenuating it. ... *Some of the terminology that mentions "Cammann, GP" is listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
…ラエネクの木製の聴診器に似た1本の筒型のもの(単耳型)は,妊婦の腹部の上から胎児の心音を聴くための〈トラウベ聴診器〉として今日でも使われている。今日最も広く使われている両耳で聴く型のもの(双耳型)は,54年アメリカのカンマンGeorge Philip Cammann(1804‐63)によって発明された。これは,身体表面の振動を音に変える役目をするヘッドの部分と,音を弱めずに耳まで導くためのゴムや高分子材料を用いたチューブとからできている。… ※「Cammann,G.P.」について言及している用語解説の一部を掲載しています。 出典|株式会社平凡社世界大百科事典 第2版について | 情報 |
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