Pick-up head for an electronic stethoscope

Details Pick-up head for an electronic stethoscope Pick-up head for an electronic stethoscope

A - Human Necessities

61

B

A61B 7/04 (2006.01) H04R 1/02 (2006.01)

Patent

CA 2236908

The pick-up head (1) with an acousto-electrical transducer (4) for converting sound vibrations to electrical signals, comprises as characterizing features a sound influencing bell (2) arranged around a slender peg (3) bonded directly to the transducer (4), and the sound influencing bell (2) delimits a listening area on a body surface and influences to a predetermined degree and in a predetermined manner, by means of internal reflection and/or absorption, the direct sound picked up by the slender center peg (3). The bell (2) is acoustically decoupled from the center peg (3).

Ce récepteur de son (1), pourvu d'un transducteur électroacoustique (4) qui transforme les vibrations sonores en signaux électriques, comprend, comme éléments caractérisants, une cloche (2) influant sur le son, qui entoure un boulon mince (3) relié directement au transducteur (4). La cloche (2) influant sur le son délimite une zone d'écoute sur une surface corporelle et elle influe, dans une mesure et d'une manière déterminées, au moyen de la réflexion et/ou de l'absorption intérieures, sur le son direct qui est recueilli par le boulon central mince (3). La cloche (2) est découplée, acoustiquement, du boulon central (3).

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