JBiSE  Vol.6 No.7 , July 2013
Development of a signal collecting system for double-channel auscultation
Abstract: As is known to all, many auscultations of human body, such as heart, lung and carotid artery sound, play a major role in clinic. And their signal frequency is in the range that computer sound card can handle, so we can use analog-to-digital (A/D) conversion of sound card as A/D conversion (ADC) of auscultation signals, and double-channel auscultation signals (DCASs) can be input into personal computer(PC) by sound card that every computer has, and it makes the hardware design more simple. Because auscultation signals are input from sound card, any common music processing software (CMPS) can be used to process received auscultative signals, and it is not necessary to write special processing software for them. Therefore, only a double-channel and front-end analog signal processing circuit of auscultation is needed to be designed. By this method of constituting the signal collecting system for double-channel auscultation, it is simple and low cost, and needs no special software, so it has very important values and a broad market prospect.
Cite this paper: Jiang, Q. , Liu, G. , Hu, N. , Gao, B. , Chen, P. , Hu, G. and Chen, L. (2013) Development of a signal collecting system for double-channel auscultation. Journal of Biomedical Science and Engineering, 6, 712-716. doi: 10.4236/jbise.2013.67087.

[1]   Huang, X.-D., Yan T. and Chen H. (2013) Development of wireless electronic isothermal stethoscope head. China Medical Devices, 28, 31-32.

[2]   McKinney, J., Cook, D.A., Wood, D., et al. (2012) Simulation-based training for cardiac auscultation skills: Systematic review and meta-analysis. Journal of General Internal Medicine, 28, 283-291. doi:10.1007/s11606-012-2198-y

[3]   Simon, E.L., Lecat, P.J., Haller, N.A., et al. (2012) Improved auscultation skills in paramedic students using a modified stethoscope. The Journal of Emergency Medicine, 43, 1091-1097. doi:10.1016/j.jemermed.2012.01.048

[4]   Shen, C.-H., Choy, F.K., Chen, Y. and Wang, S.Y. (2013) A modular approach to computer-aided auscultation: Analysis and parametric characterization of murmur acoustic qualities. Computers in Biology and Medicine, 43, 798805. doi:10.1016/j.compbiomed.2013.01.008

[5]   Li, Q.Z. and Qin, Y. (2013) The experience in clinic teaching for general practitioners in cardiac auscultation. China Modern Medicine, 20, 146-148.

[6]   Shen, Y.-C. and Tuo, X.-L. (2012) Application of heartlung simulative auscultation on general practitioner’s incumbency train. Journal of Jianghan University, 40, 100102.

[7]   Analog Devices (2013) Low power, precision, auto-zero op amps AD8538/AD8539.

[8]   Analog Devices (2013) Low power, precision, auto-zero op amps AD8638/AD8639.