Rancangan Tangan Prostetik dengan Integrasi TRIZ dan Additive Manufacturing

Abstract

Amputation is the loss of a limb due to illness, congenital defects, accidents, or medical procedures, significantly impacting body function, sensation, and self-image. In Indonesia, only a small percentage of people with disabilities use orthotic prosthetic devices. Prostheses serve as a solution to replace missing body parts; however, challenges such as high production costs, discomfort, and excessive weight remain. This study aims to improve the design of a below-elbow prosthetic hand by integrating the Theory of Inventive Problem Solving (TRIZ) and Additive Manufacturing (AM). QFD is used to understand user needs, TRIZ to generate innovative solutions, and AM to enhance production efficiency. The results of QFD Phase I identified key aspects that need improvement, including comfort, cost, and product weight. QFD Phase II further revealed that the socket and frame are the most critical components requiring enhancement. By applying the integration of TRIZ and Additive Manufacturing, innovative solutions were developed, including a custom socket tailored to the patient’s hand shape for improved comfort, a modular approach with smaller component divisions for production efficiency, and a hollow structure design to reduce weight. This approach successfully reduced production costs by 57.14% and production time by 38.76%, thereby improving accessibility and efficiency for users.