He loss of corporal mass that causes their hip bones to apply concentrated loads within the patient’s back and gluteus. Also, the static position in specific locations increases the temperature from the body regions in contact with all the bed or the wheelchair utilized to transport or rest the patient. This boost within the temperature causes the skin to perspire, which can be also associated with the enhanced humidity required to maintain the skin’s optimal situations. As a result, ulcer formation is associated with a rupture of your skin tissue. This rupture takes place because of the layers of your skin decreasing their volume and their stiffness. In addition, humidity and insufficient ventilation inside the skin lower the healing in the injury. For this reason, the therapists advocate changing their postural position throughout the day to reduce water accumulation and interact using the make contact with region using the wheelchair.Sensors 2021, 21,five ofFor TRIZ methodology, the preferred distinct functions would be the output from an object or substance (Si) and triggered by a further object or substance (Si 1) using the enable of some means (in general, it refers to kinds of energy, F). As an example, Figure 3a represents the interaction with the wheelchair along with a patient. Initial, the locations of make contact with among the patients and also the wheelchair is often described as the substance (S1). Then the wheelchair represents the substance (S2), which maintains the patient inside a particular postural position. In this situation, the load applied more than the speak to regions (F) causes the AAPK-25 In Vitro harmful impact of ulcer formation (H1).Figure three. Block diagram (a) Su-field evaluation, (b) FM4-64 Technical Information Improved Su-field evaluation.Hence, applying the effects previously described, the device’s proposed process should be to prevent ulcer skin formation in the back and gluteus. The attainable function to achieve this is altering the patient’s postural position. The technique has identified if the actual behavior with the technique is incomplete (it means that the substance-field analysis calls for completion of a new sub-system to attain the preferred effect), has an ineffective method (it demands improvement to make the preferred impact), or includes a comprehensive harmful technique (it calls for the elimination of your negative effect). To attain this action is used the “76 Normal Solutions” [24]. This tool of TRIZ methodology groups the viable solutions into the following five categories: typical solutions to enhance the method with no or minor modifications, typical options to improve the method by changing parts on the program, such as system transitions, detect, and measuring parts from the system or implement methods for simplification and improvement of components inside the system. Within this study case, it is actually essential to complete the method by adding an element in between the harmful impact plus the subjects. The proposed modification with the scenario is shown in Figure 3b. This scenario applies solution 1.two.1, “Remove the harmful effects by introducing S3 substance or object”. Thus, is added a “mechanism” among the dangerous effect and also the skin stress named S3. Option 1.2.four also points out, “The damaging effect exists within a method in which the components S1 and S2 must be in make contact with. Counteract the harmful effect of F1 by having F2 neutralize the dangerous effect”. Then, the “proposed mechanism” should counterbalance the payload applied more than the back and also the gluteus by altering the center of mass when the postural position on the patient adjustments from decubitus position to sit position and vice versa. Also, if it a.
