title: Development of digital stethoscope for telemedicine.
abstract: The stethoscope is a medical acoustic device which is used to auscultate internal body sounds, mainly the heart and lungs. A digital stethoscope overcomes the limitations of a conventional stethoscope as the sound data is transformed into electrical signals which can be amplified, stored, replayed and, more importantly, sent for an expert opinion, making it very useful in telemedicine. With the above in view, a low cost digital stethoscope has been developed which is interfaceble with mobile communication devices. In this instrument sounds from various locations can be captured with the help of an electret condenser microphone. Captured sound is filtered, amplified and processed digitally using an adaptive line enhancement technique to obtain audible and distinct heart sounds.
authors.affiliation: a Department of Biomedical Engineering , MGM College of Engineering and Technology , Navi Mumbai , India ;
authors.forename: Aparna
authors.initials: A
authors.lastname: Lakhe
authors.affiliation: a Department of Biomedical Engineering , MGM College of Engineering and Technology , Navi Mumbai , India ;
authors.forename: Isha
authors.initials: I
authors.lastname: Sodhi
authors.affiliation: a Department of Biomedical Engineering , MGM College of Engineering and Technology , Navi Mumbai , India ;
authors.forename: Jyothi
authors.initials: J
authors.lastname: Warrier
authors.affiliation: b Electronic division , Bhabha Atomic Research Centre , Mumbai , India.
authors.forename: Vineet
authors.initials: V
authors.lastname: Sinha
mesh_terms: D000669:Amplifiers, Electronic; D001314:Auscultation / Q000295:instrumentation*; D003936:Diagnosis, Computer-Assisted / Q000295:instrumentation*; D004867:Equipment Design; D019544:Equipment Failure Analysis; D006801:Humans; D012815:Signal Processing, Computer-Assisted / Q000295:instrumentation*; D019023:Stethoscopes; D059015:Wireless Technology / Q000295:instrumentation*
keywords: Auscultation; adaptive line enhancement (ALE) technique; band pass filter (BPF); bluetooth; condenser microphone; digital filter; heart sound amplifier; telemedicine