Design and Verification of Bell-shaped Structure in Negative Pressure Environment for Sound Acquisition of Knee Joint

Volume 8, Issue 1, February 2023     |     PP. 17-30      |     PDF (719 K)    |     Pub. Date: February 1, 2023
DOI: 10.54647/biology180271    80 Downloads     2645 Views  


Yung‐Tsung Cheng, Department of Electrical Engineering, National Cheng Kung University, Tainan, Taiwan
Cheng‐Chi Tai, Department of Electrical Engineering, National Cheng Kung University, Tainan, Taiwan
Willy Chou, Department of Physical Medicine and Rehabilitation, Chi‐Mei Medical Center, Tainan, Taiwan
Jiun‐Hung Lin, College of Electrical Engineering and Computer Science, National Kaohsiung University of Science and Technology, Kaohsiung, Taiwan

Aging society is currently the common environmental phenomenon in developed countries. The occurrence of chronic diseases is rising with increasing elderly population; degenerative knee arthritis is one of them to feel pain when knees are under load. In addition to detection through doctors’ inquiry and palpation, the assistance of medical devices is clinically used for realizing the degree of knee degeneration. However, there is implicit consideration of excessive radiation dose. In order to enhance the operation convenience of knee joint detection and reduce the doubt of safety, digitalization of medical aids is applied to reduce medical staff’ burden. A structure different from attached knee auscultation devices is proposed in this study, aiming to effectively reduce friction interference during knee sound measurement. Moreover, a wireless sound and posture detection system with inertial sensor and directional microphone is also proposed to measure body movements and angles through the tiny sound recording function. Meanwhile, wireless transmission function is included to reduce wire connection and enhance wearing comfort during the measurement. The system is completed the prototype design and test; it will be applied to long-term knee health monitoring and clinical preventive healthcare.

rubber capsule, posture detection, knee auscultation, negative pressure, metal sucker

Cite this paper
Yung‐Tsung Cheng, Cheng‐Chi Tai, Willy Chou, Jiun‐Hung Lin, Design and Verification of Bell-shaped Structure in Negative Pressure Environment for Sound Acquisition of Knee Joint , SCIREA Journal of Biology. Volume 8, Issue 1, February 2023 | PP. 17-30. 10.54647/biology180271


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