Design and Optimization of a Novel Intramedullary Robot for Limb Lengthening
INTELLIGENT ROBOTICS AND APPLICATIONS, ICIRA 2021, PT III(2021)
Abstract
Limb length discrepancy is a crucial problem that can seriously affect the life quality and likely leads to other diseases. Free from extracorporal surgery, the intramedullary limb-lengthening treatment has become increasingly popular in recent years as a method of long-bone distraction osteogenesis. To overcome the mechanical and electromagnetic problems caused by the medical device miniaturization, this paper presents a study on the design and optimization of a novel Intramedullary Robot for Limb Lengthening (IR4LL) with robust mechanical stiffness and surplus electromagnetic driving force. A solenoid-driven design with a large reduction ratio is proposed and analyzed. Based on the experimental and simulation results, IR4LL is proven to be safe and reliable for limb-lengthening operations, which can significantly reduce lifestyle disruption and medical complications during and after the treatment.
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Key words
Limb length discrepancy, Limb lengthening, IR4LL, Design and optimization
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