Patent ID: 8867756
Filing Date: 2014-10-21
Classification: A61B,G01R

Abstract:
1. An auscultation apparatus to be used during an examination by a medical examination and diagnostic device, comprising: an optical microphone arranged in a single auscultation head of the auscultation apparatus for acquiring sounds caused by a patient during the examination; at least one second optical microphone not arranged in the single auscultation head of the auscultation apparatus and disposed at a distance from the optical microphone during the examination and inside an examination region of the medical examination and diagnostic device for acquiring noise caused by using the medical examination and diagnostic device during the examination; and a data processing device connected to the optical microphone and the at least one second optical microphone for analyzing the sounds, wherein the data processing device analyzes the sounds in occurring repetition times for determining a time instance at which a selected sound occurs for triggering the medical examination and diagnostic device at the time instance, and wherein the data processing device converts the noise acquired by the at least one second optical microphone as a constant scaling factor, and wherein the data processing device subtracts the converted constant scaling factor from the sounds acquired by the optical microphone to eliminate the noise caused by using the medical examination and diagnostic device during the examination from the sounds caused by the patient during the examination.