The stethoscope has been used for many years, and has been very effective to diagnose certain cardiologic and pulmonologic sounds. For many years healthcare professionals would listen quietly to patients internal organs so they could diagnose from specific sounds of such internal organs. The objective is to develop a Peripheral Interface Controller based digital Stethoscope to capture the heart...

This paper proposes the electronic heart sound sensor, based on the piezoresistive principle and MEMS (Micro-Electro-Mechanical System) technology. Firstly, according to the characteristics of heart sound detection, the double-beam-block microstructure has been proposed, and the theoretical analysis and finite element method (FEM) simulation have been carried out. Combined with the natural freq...

Health care-associated infections (HAIs) occur in ∼1.7 million patients annually, and 100,000 die, at a cost of $147 billion.1Marchetti A. Rossiter R. Economic burden healthcare-associated infection US acute care hospitals: societal perspective.J Med Econ. 2013; 16: 1399-1404Crossref PubMed Scopus (61) Google Scholar Overall, 85% stethoscopes (the physician’s third hand) are contaminated with t...

In combat casualty and civilian environments, an unmet need exists for a stethoscope that can hear heart and especially breathing sounds while inside helicopters, fixed-wing aircraft, or ambulances where noise levels preclude auscultation with standard stethoscopes. Without this capability, patients can suffer from unidentified collapsed lungs or loss of intubation integrity with the threat of ...

OBJECTIVE This study investigated the effect of stethoscope side and tube length on auscultatory blood pressure (BP) measurement. METHODS Thirty-two healthy participants were studied. For each participant, four measurements with different combinations of stethoscope characteristics (bell or diaphragm side, standard or short tube length) were each recorded at two repeat sessions, and eight Kor...