Design of a test bench for a sternum prosthesis

Abstract

The present work shows the three-dimensional design and the simulation of movements in a test bench to reproduce the respiratory cycle in human beings so that the useful life of a sternum prosthesis can be evaluated. A design methodology was used to identify the requirements and subsequently establish the design and selection of the elements. Among the most relevant parameters to consider in the design, the test bench is required to simulate the action of the forces on the prosthesis, which are generated during the respiratory cycle in humans, causing expansion of the rib cage and rib elevation. Additionally, the test bench is capable of applying a compression force to the thorax that produces a seat belt in an automobile to reproduce impact scenarios. The test bench has linear actuators to control the required action force and the applied displacements. Simulations results show that the test bench is capable of reproducing movements on the sternum during the respiratory cycle together with impact conditions, as well as the reliability that the test bench can be used to perform tests that require a high time.

Simplified mechanical system for knee rehabilitation

“…Four bars Flexoextension of the knee Furthermore, many studies evaluate rehabilitation, [7], [8], [9], [10], [11], [12] to mention a few examples: test bench design, which is capable of reproducing impact scenarios by applying a compression force to the thorax produced by the seat belt in a car accident [13], characterization of the impact on the head in terms of acceleration and force, among others [14], [15], [16]. This research model a rehabilitative mechanism whose objective is to synthesize a mechanism of 4 bars by mathematical models to implement a rehabilitation system focused on passive isokinetic movement for knee rehabilitation with a flexo-extension movement [17].…”

Design of an Articulated Neck to Assess Impact Head-Neck Injuries

“…It is the most Anthropometric Test Device (ATD) used to evaluate vehicle crash events and many other events that could injure a person. Many studies evaluate injuries [13][14][15][16] to mention a few examples: test bench design, which is capable of reproducing impact scenarios by applying a compression force to the thorax produced by the seat belt in a car accident [17], characterization of the impact on the head in terms of acceleration and force, among others [18,19].…”

Experimental assessment of cruciate ligaments performance on a Lower Limb Impactor (LLI)

“…In Euro-NCAP tests, three different types of impactors are used; IEEE, PDI and TRL [4]. Many studies evaluate injuries, [5][6][7][8][9][10] to mention a few examples: test bench design, which is capable of reproducing impact scenarios by applying a compression force to the thorax produced by the seat belt in a car accident [11], characterization of the impact on the head in terms of acceleration and force, among others [12 -15].…”