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Abstract
The mobility of patients with physical limitations is a major challenge in healthcare, particularly in the process of transferring from bed to wheelchair, toilet, or examination table. Based on data from BPS (2023) and Regsosek (2023), the number of people with disabilities and the elderly in Indonesia continues to increase, requiring innovation in assistive devices that are safe, ergonomic, and easy to use. This study designed a transfer chair with a solenoid-based electric brake system to improve the efficiency and safety of the patient transfer process. The research method included needs identification, structural and brake system design, fabrication, and functional testing. The calculation results show that the brake system with four 12V DC solenoids produces a total pressing force of 80 N and a braking torque of 6.10 Nm. Energy consumption for 5 minutes is 1.99 Wh with a minimum battery capacity requirement of 166 mAh. The static stability coefficient of 1.14 indicates the device is stable during use. The device is able to withstand static loads of up to 90 kg without brake function disruption and is in accordance with anthropometric data for the Indonesian population. This design contributes to the development of medical devices that are affordable and responsive to the needs of patients and medical personnel.
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Ciptaan disebarluaskan di bawah Lisensi Creative Commons Atribusi-BerbagiSerupa 4.0 Internasional.
References
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References
. Badan Pusat Statistik. 2023. Statistik penyandang disabilitas Indonesia 2023. BPS. https://www.bps.go.id
. Badan Pusat Statistik, & Kementerian Keuangan Republik Indonesia. 2023. Registrasi sosial ekonomi (Regsosek) 2023: Basis data terpadu perlindungan sosial. TNP2K. https://www.regsosek.bps.go.id
. Cooper, R. A. 1995. Rehabilitation engineering: Applied to mobility and manipulation. Institute of Physics Publishing.
. Herman, S. L. 2009. Electric motor control. 9th ed. Cengage Learning.
. Kementerian Kesehatan Republik Indonesia. 2024a. Data dan informasi profil kesehatan Indonesia tahun 2024. Pusat Data dan Informasi Kemenkes RI. https://www.kemkes.go.id
. Kementerian Kesehatan Republik Indonesia. 2024b. Riskesdas 2024: Riset kesehatan dasar nasional. Badan Litbangkes. https://www.kemkes.go.id
. Kementerian Koordinator Bidang Pembangunan Manusia dan Kebudayaan. 2024. Laporan pemetaan kebutuhan alat bantu bagi penyandang disabilitas. Kemenko PMK. https://www.kemenkopmk.go.id
. Pahl, G., Beitz, W., Feldhusen, J., & Grote, K.-H. 2007. Engineering design: A systematic approach. 3rd ed. K. Wallace & L. Blessing, Eds.). Springer.
. Righetti, D. 2017. Solenoid actuators: Theory and computational methods. Springer.
. Serway, R. A., & Jewett, J. W. 2018. Physics for scientists and engineers. 10th ed. Cengage Learning.
. Webster, J. G., & Nimunkar, A. J. (Eds.). 2020. Medical instrumentation: Application and design. 5th ed.. Wiley.
. Winter, D. A. 2009. Biomechanics and motor control of human movement. 4th ed. John Wiley & Sons.
. Young, H. D., & Freedman, R. A. 2019. University physics with modern physics. 15th ed. Pearson.