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Electronic stethoscope having binaural earpiece

  • US 5,347,583 A
  • Filed: 12/16/1992
  • Issued: 09/13/1994
  • Est. Priority Date: 12/16/1992
  • Status: Expired due to Term
First Claim
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1. A binaural electronic stethoscope adapted to receive auscultatory sounds from a body and adapted to transmit said auscultatory sounds to a user, comprising:

  • a chestpiece adapted to utilized in cooperation with said body;

    an acoustical transducer cooperating with said chestpiece for receiving said auscultatory sounds and transforming said auscultatory sounds into an electrical input signal;

    signal processing means being operatively coupled to said acoustical transducer for processing said electrical input signal to produce an electrical output signal;

    a housing;

    first tubular means coupling said chestpiece to said housing;

    speaker means mounted within said housing for converting said electrical output signal into an acoustical output signal;

    electrical connection means for coupling said electrical output signal to said speaker;

    second and third tubular means coupled to said housing and acoustically coupled to said speaker for acoustically transmitting said acoustical output signal;

    first and second earpieces coupled to said second and third tubular means, respectively, for receiving said acoustical output signal and providing said acoustical output signal to said user;

    said first tubular means having an acoustical cavity which is acoustically coupled to said speaker in said housing, said first tubular means forming an acoustic cavity which enhances the frequency response of said speaker;

    whereby said acoustical cavity of said first tubular means and said second and third tubular means form sound channels both in front of and behind said speaker providing balanced acoustical response.

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