2025

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Design and development of prototype of lightweight and portable cervical traction device
(UMT Lahore, 2025-09-03) Ammar Raja; Farhan Haider; Hamza Khurshid; Hamza Siddique
The project shows the design, development, and validation of a lightweight, portable cervical traction device intended for safe home and clinic use. The device uses a linear actuator driven by a stepper motor to provide controlled, repeatable cervical decompression with adjustable traction angles (15°, 20°, 25°) and 0.5-inch distance increments. CAD models were made in SolidWorks and verification was done with static structural finite-element analysis in ANSYS to ensure stiffness and low stress concentrations under expected loads. A physical prototype was created by using acrylic and ABS components with foam cushioning and an electronics control panel (AT mega microcontroller, stepper driver, limit switch, battery pack) providing forward/reverse motion, speed regulation, and emergency stop. Internal and external tests with physiotherapists at Sharif Medical City Hospital confirmed the unit’s comfort, functionality, and clinical potential for mild–moderate cervical disorders. The device meets the project objectives of portability (<3.5 kg), cost-effectiveness, quiet operation, and adjustable therapy parameters. Recommended future work includes closed-loop force control, sensor integration, fatigue testing, and formal clinical trials to follow regulatory approval.