Stethoscope with high frequency filter

Details Stethoscope with high frequency filter Stethoscope with high frequency filter

A - Human Necessities

61

B

181/20, 333/75

A61B 7/02 (2006.01)

Patent

CA 1254519

Abstract A low-pass filter is incorporated into the binaural tube of a stethoscope to selectively attenuate high frequency noise. The filter includes a small diameter inertance tube communicating with a large volume compliance chamber and is preferably located as far as possible from the chestpiece of the stethoscope to filter noise not only transmitted from the chestpiece, but also transmitted directly to the binaural tube.

519600

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