Resumo

OSORIO VALENCIA, Juan Sebastián; CUESTA LOPEZ, Luisa Fernanda  e  GOMEZ MAYA, Felipe. DISEÑO Y CONSTRUCCIÓN DE UN FONOCARDIÓGRAFO DIGITAL CON VISUALIZACIÓN EN LABVIEW. Rev. ing. biomed. [online]. 2007, vol.1, n.1, pp.42-46. ISSN 1909-9762.

The auscultation of the heart noises has always been an important tool in medicine, a good diagnosis of illnesses related to the heart valves should be given from a phonocardiogram able to give the doctor a reliable information of the patients situation. The design presented is a phonocardiograph capable of amplifying and filtering the acoustic signs derived from the heart. After an analog to digital conversion of those signs the information is sent by serial port to a graphic environment in LabVIEW for its registration and analysis in real time.

Palavras-chave : Phonocardiography; Operational amplifiers; Analog-to-Digital conversión; Filtering; Cardiovascular system.

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