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1. WO2020137212 - STETHOSCOPE AND ELECTRONIC STETHOSCOPE DEVICE

Publication Number WO/2020/137212
Publication Date 02.07.2020
International Application No. PCT/JP2019/044435
International Filing Date 12.11.2019
Chapter 2 Demand Filed 09.04.2020
IPC
A61B 7/04 2006.01
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
BDIAGNOSIS; SURGERY; IDENTIFICATION
7Instruments for auscultation
02Stethoscopes
04Electric stethoscopes
H04R 1/46 2006.01
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
1Details of transducers
46Special adaptations for use as contact microphones, e.g. on musical instrument, on stethoscope
H04R 17/02 2006.01
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
17Piezo-electric transducers; Electrostrictive transducers
02Microphones
A61B 5/0408 2006.01
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
BDIAGNOSIS; SURGERY; IDENTIFICATION
5Measuring for diagnostic purposes; Identification of persons
04Measuring bioelectric signals of the body or parts thereof
0402Electrocardiography, i.e. ECG
0408Electrodes specially adapted therefor
A61B 5/0492 2006.01
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
BDIAGNOSIS; SURGERY; IDENTIFICATION
5Measuring for diagnostic purposes; Identification of persons
04Measuring bioelectric signals of the body or parts thereof
0488Electromyography
0492Electrodes specially adapted therefor, e.g. needle electrodes
CPC
A61B 5/25
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
BDIAGNOSIS; SURGERY; IDENTIFICATION
5Measuring for diagnostic purposes
24Detecting, measuring or recording bioelectric or biomagnetic signals of the body or parts thereof
25Bioelectric electrodes therefor
A61B 5/296
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
BDIAGNOSIS; SURGERY; IDENTIFICATION
5Measuring for diagnostic purposes
24Detecting, measuring or recording bioelectric or biomagnetic signals of the body or parts thereof
25Bioelectric electrodes therefor
279specially adapted for particular uses
296for electromyography [EMG]
A61B 7/04
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
BDIAGNOSIS; SURGERY; IDENTIFICATION
7Instruments for auscultation
02Stethoscopes
04Electric stethoscopes
H04R 1/46
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
1Details of transducers, ; loudspeakers or microphones
46Special adaptations for use as contact microphones, e.g. on musical instrument, on stethoscope
H04R 17/02
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
17Piezo-electric transducers; Electrostrictive transducers
02Microphones
Applicants
  • 富士フイルム株式会社 FUJIFILM CORPORATION [JP]/[JP]
Inventors
  • 藤井 隆満 FUJII Takamichi
  • 佐々木 勉 SASAKI Tsutomu
Agents
  • 中島 順子 NAKASHIMA Junko
  • 米倉 潤造 YONEKURA Junzo
  • 藤森 義真 FUJIMORI Yoshinao
  • 上出 真紀 KAMIDE Maki
Priority Data
2018-24349226.12.2018JP
Publication Language Japanese (JA)
Filing Language Japanese (JA)
Designated States
Title
(EN) STETHOSCOPE AND ELECTRONIC STETHOSCOPE DEVICE
(FR) STÉTHOSCOPE ET DISPOSITIF DE DISPOSITIF ÉLECTRONIQUE
(JA) 聴診器および電子聴診装置
Abstract
(EN)
Provided are a stethoscope and an electronic stethoscope device capable of measuring biological sounds at a high SN ratio. This stethoscope is provided with a support base and a detection unit which is supported by the support unit and detects sounds from an object being measured. The detection unit has a piezoelectric film at at least a portion for detecting sounds from the object being measured, the piezoelectric film being disposed to face the support base and being curved in the direction away from the support base. The piezoelectric film is provided with: a piezoelectric layer having two main surfaces facing each other; a first electrode provided on the support base-side main surface of the two main surfaces; and a second electrode provided on the main surface on the opposite side from the support base. The stethoscope detects distortion generated in the piezoelectric film by sounds from the object being measured as a vibration signal.
(FR)
L'invention concerne un stéthoscope et un dispositif de stéthoscope électronique capables de mesurer des sons biologiques à un rapport signal/bruit élevé. Ce stéthoscope est pourvu d'une base de support et d'une unité de détection qui est supportée par l'unité de support et détecte des sons provenant d'un objet mesuré. L'unité de détection a un film piézoélectrique au niveau d'au moins une partie pour détecter des sons à partir de l'objet mesuré, le film piézoélectrique étant disposé pour faire face à la base de support et étant incurvé dans la direction opposée à la base de support. Le film piézoélectrique est pourvu : d'une couche piézoélectrique ayant deux surfaces principales se faisant face; d'une première électrode disposée sur la surface principale côté base de support des deux surfaces principales; et une seconde électrode disposée sur la surface principale sur le côté opposé à la base de support. Le stéthoscope détecte une distorsion générée dans le film piézoélectrique par des sons provenant de l'objet mesuré sous la forme d'un signal de vibration.
(JA)
生体音を高いSN比で測定可能な聴診器および電子聴診装置を提供する。聴診器は、支持台と、該支持台に支持された検出部であって、被測定物から生じる音を検出する検出部とを備え、検出部が、少なくとも被測定物から生じる音を検出する部分に、支持台と対向して配置された圧電フィルムであって、支持台とは逆側に凸に湾曲した圧電フィルムを有し、圧電フィルムが、互いに対向する2つの主面を有する圧電体層と、2つの主面のうち前記支持台側の主面に備えられた第1の電極と、支持台とは逆側の主面に備えられた第2の電極とを備え、被測定物から生じる音によって前記圧電フィルムに生じる歪を振動信号として検出する。
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