Bluetooth Enabled Stethoscope

Authors

  • Luthfiya Kamal Department of Electronics and Biomedical engineering, Adi Shankara Institute of Engineering and technology, KTU Author
  • Fathima Sherin V A Department of Electronics and Biomedical engineering, Adi Shankara Institute of Engineering and technology, KTU Author
  • Celestian George Department of Electronics and Biomedical engineering, Adi Shankara Institute of Engineering and technology, KTU Author
  • Deepesh T B Department of Electronics and Biomedical engineering, Adi Shankara Institute of Engineering and technology, KTU Author
  • Surya D Department of Electronics and Biomedical engineering, Adi Shankara Institute of Engineering and technology, KTU Author
  • Shinu M M Department of Electronics and Biomedical engineering, Adi Shankara Institute of Engineering and technology, KTU Author

DOI:

https://doi.org/10.21467/proceedings.7.5.9

Keywords:

wireless stethoscopes, acoustic signals

Abstract

In noisy environments or for individuals with specific conditions, accurately capturing heart sounds can be challenging. This issue is further compounded by the inconvenience of physicians frequently removing earpieces. Additionally, the close face-to-face proximity required for auscultation (within 30-40 cm) increases the risk of cross-infection between patient and physician. Innovations such as wireless stethoscopes, digital transmission, and tele- auscultation can address these issues by enabling listening and reducing the need for close contact. The heart’s acoustic signals are captured, converted into electrical impulses via a microphone with a built-in preamplifier (MAX4466), amplified using a power amplifier (LM386), and transmitted in real-time to a receiving device where the signal is further amplified (PAM8403) and output to headphones, speakers. Its user-friendly interface and portability make it ideal for personal health monitoring and clinical diagnosis.

References

[1] H. B. Sprague, “History and Present Status of Phonocardiography,” IRE Trans. Med. Electron., vol. ME-4, pp. 1–8, Dec. 1957.

[2] H. Wang, J. Chen, and S. Choi, “Heart Sound Measurement and Analysis System with Digital Stethoscope,” in Proc. Int. Conf. Biomed. Eng. Inform., 2009, pp. 1–4.

[3] J. Fontecave-Jallon, K. Fojtik, and B. Rivet, “Is there an optimal localization of cardio-microphone sensors for phonocardiogram analysis?,” in Proc. 41st Annu. Int. Conf. IEEE Eng. Med. Biol. Soc. (EMBC), 2019, pp. 3249–3252.

[4] P. Charlier et al., “AcCorps: A low-cost 3D printed stethoscope for fetal phonocardiography,” in Proc. 41st Annu. Int. Conf. IEEE Eng. Med. Biol. Soc. (EMBC), 2019, pp. 52–55.

[5] A. Sharma, P. Gupta, and S. Kumar, “Wireless Digital Stethoscope for Telemedicine Applications: A Review,” Biomed. Signal Process. Control, vol. 81, p. 104564, 2023, doi: 10.1016/j.bspc.2023.104564.

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Published

2025-09-23

Issue

Vol. 7 No. 5 (2025): Proceedings of the International Conference on Innovations in Mechanical Robotics Computing and Biomedical Engineering: ICIMRBE 2025

Section

Articles

License

Creative Commons License

This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.

How to Cite

[1]
L. Kamal, F. Sherin V A, C. George, D. T B, D. Surya, and S. M M, “Bluetooth Enabled Stethoscope”, AIJR Proc., vol. 7, no. 5, pp. 62–71, Sep. 2025, doi: 10.21467/proceedings.7.5.9.