Implementación de un prototipo de fonendoscopio electrónico con fines didácticos para diferenciar sonidos provenientes del área torácica del cuerpo humano.

Abstract

The electronic stethoscope prototype for didactic purposes to differentiate sounds coming from the thoracic area of the human body aims to be a didactic tool in the process of academic formation in the area of health sciences. The current teaching methodology of the auscultation process is through the use of the acoustic stethoscope. To develop an alternative such as the proposal, a piezoelectric transducer was used, which captures the cardiac sound that is filtered and amplified to obtain a signal that can be digitized. For the analysis an application was developed in the Python language, which is executed in the Raspbian operating system. This application has the fundamental tasks of storing and analysing sound, which is presented in a graph as a function of time representing a phonocardiogram. It is necessary that the audio output has elements that are capable of reproducing low frequencies, for which you can use speakers or hearing aids that comply with this feature. The quality of the acoustic signal of the prototype allowed that during the test carried out, the participants qualify in a satisfactory manner, what is captured through the prototype, also determined that the proposal contributes to promote the inclusion of information and communication technologies (ICTs) in the classrooms, which can be a motivating factor to develop practices in the same. It is recommended a careful use of the equipment, to safeguard the useful life and long-term operation of the prototype as it is a didactic teaching tool.