Abstract
In this study, the design of a metal stent which expands under the influence of a difference in hydraulic pressure is presented. Using the action of existing stents as a reference, the joint of the metal stent model is joined, to lock its own elastic force. The maximum energy storage formula was applied to determine if the joint could withstand the elastic force that is integral to the stent model. Simulations of the stent, under the influence of differences in hydraulic pressure, were performed. During simulation, the fluid pressure, the width of the joint of the stent, the angle of the pipe model, and some other parameters, were changed to determine their impact on the stent joint and to explore the differences.
Highlights
Technological advances have resulted in the development of many self-expanding mechanisms, where expansion is triggered externally
A metal stent model with a joint of 0.08 mm × 0.1 mm was placed in a pipe model with a pipe angle of 40°
After it had been found that the intrinsic elastic force of the metal stent could be maintained by the joint, models with the three different joint widths were introduced into ABAQUS and simulation analysis was done
Summary
Technological advances have resulted in the development of many self-expanding mechanisms, where expansion is triggered externally. This review will, be done in two parts: the mechanical model, followed by a simulation analysis Both Nuttall [1] and Pollard [2] separately studied the ejection seat systems in fighter jets in 1971. Chua et al [6,7] analyzed the interaction between the balloon and the slotted tube stent In their studies, half and quarter models are used in the finite element analysis. In 2008, Ni et al [17] used an artificial neural network to make an intelligent forecast of the deformation of expanding stents This approach was highly adaptive and could be used to optimize the design of the stent structure. The expanding ring design that is introduced here, takes advantage of a hydraulic pressure difference; the material used was metal, which can be applied to smooth vessels or to self-expanding vascular stents
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