ELECTRONIC-ACOUSTICAL INTERFACE FOR STETHOSCOPE Russian patent published in 2009 - IPC A61B7/04 H04R1/00 

FIELD: medical equipment.

SUBSTANCE: interface includes casing, connected to flexible tube component, containing first tube, for joining with stethoscope head; fixed in the casing there are: power source; series-connected microphone, adjustable amplifier, and loudspeaker, forming electronic channel with tube. Electronic and acoustic channels of interface are connected to first and second outputs of channel switch, respectively. Second tube is inserted into the flexible tube component, forming acoustic channel. Microphone is fixed in first tube of flexible tube component; the switch has orifice and adjusting screw for changing the orifice section, when connected to acoustic channel through switch, in electronic mode. Moreover, both ends of first and second tubes of flexible tube component are embedded in casing, both another ends can be connected to user's stethoscope head.

EFFECT: easiness in maintenance, simple assemblage, and versatile application of stethoscope.

8 cl, 4 dwg