**4.11 Ease off cleaning the staircase**

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standing frame.

**4.4 Materials used for creation the stander**

**4.5 Structural strength of the staircase**

applied force it could suffer some damage.

The grade point average for this criterion was very good.

**4.6 Weight of the staircase**

**4.7 Ease of handling**

this criterion was very good.

**4.9 Stander dimensions**

for this criterion was very good.

The testers expressed that they look tough and that they are suitable for durability and strength. Another evaluator requested a technical sheet of the stander and the value of the resistance of the materials. The grade point average for this criterion was very good. One of the elements highlighted in the structure was the use of a special weld, which guarantee safety in the different joints of the

In this item, the evaluators stated that the design and manufacture guaranties the resistance of the stanchion and suggested performing load-bearing tests for a more generalized use. The grade point average for this criterion was very good. Considering that the structural resistance of the prototype is fundamental, the researchers consulted with a mechanical engineer to make a 3D modeling, in which a simulation was intended to find resistance values and critical points in the structure. Regarding the load-bearing test, when manufacturing the prototype, a static test with a weight of 100 kg was performed for 24 hours, finding that the structures did not suffer any damage. However, to conduct other types of tests, it must have another manufactured stanchion, which is available only to measure with what

The evaluators stated that it is a bit heavy, however it is much lighter than other types of stanchions that do not have an electric motorization system; They also expressed that another type of material such as aluminum could reduce the weight.

In this evaluation criterion, the evaluators stated that they are concerned about children with spina bifida who have attention and coordination difficulties, they stated that the regulatory system could be improved to make it easier for the family to manipulate, modifying it to a system of pin commonly used on crutches and canes; it is also required to improve transportability. The grade point average for

**4.8 Expansion capacity in the different segments whereas loads is produced**

The experts stated that they were adequate to achieve difficult accesses, although, if it does not risk stability, it would be preferable to shorten it a bit; another expert said he finds it a bit cumbersome to fit into an average car. The rating

The experts expressed that the stander offers wide possibilities to adjust the size in different parts of it, although some adjustments are required to improve the expansion capacity in the seat. The grade point average for this criterion was

**82**

excellent.

The stander met the hygiene requirements set by the researchers and evaluators. The grade point average for this criterion was very good.
