PROBLEM TO BE SOLVED: To provide a microphone for collecting biological sounds wherein the mixing of external environment noise or slide noise hardly occurs and which can sensitively collect biological sounds and allows the broadening of a sound collection band.SOLUTION: The microphone 1 for collecting biological sounds includes: a plate-like first biological sound propagation part 20 functioning as a biological sound propagation part to a microphone unit 10, having the front surface stuck to the body surface of a subject, and having the rear surface abutted on or brought close to the microphone unit 10 and a second biological sound propagation part 30 made of a material having a Shore A hardness lower than the first biological sound propagation part 20, filled in a space sectionalized by a casing 40 and the first biological sound propagation part 20, and embedded with the microphone unit 10. The first biological sound propagation part 20 contains inorganic fine particles 25.COPYRIGHT: (C)2013,JPO&INPIT【課題】外部環境雑音や摺動雑音の混入が生じ難く、生体音を高感度に集音し、かつ集音帯域の広帯域化が可能な生体音収集用マイクロホンを提供する。【解決手段】本発明に係る生体音収集用マイクロホン1は、マイクロホンユニット10に対する生体音伝導部として機能し、その表面を被検体の体表面に密着させ、その裏面をマイクロホンユニット10に当接又は近接させた板状の第1の生体音伝播部20と、第1の生体音伝播部20よりもショアA硬度の低い素材からなり、筺体40と第1の生体音伝播部20とで区画された空間に充填され、かつマイクロホンユニット10を埋設する第2の生体音伝播部30を備える。第1の生体音伝播部20には、無機微粒子25が含有されている。【選択図】図1
