| Summary: | 碩士 === 聖約翰科技大學 === 工業工程與管理系碩士班 === 98 === The most effective method in pressure-ulcer prevention and cure is to periodically interrupt the interface pressure between the buttock and the cushion so that the buttock muscle and skin can take turns, by zone, to rest to effectively prevent said muscle from entering the pressure-ulcer-formation threshold curve. To achieve this goal, my advisor, Dr. Chen, utilized his many years’ pressure-ulcer research experiences and created a New Dynamic-type Air Cushion (NDAC) to reduce sitting pressure and/or prevent and cure pressure-ulcer for people and patients who often need to sit for a long time, which stirs up my great interest. This study adopts methods, information and approaches including TRIZ contradiction matrix method, 40 inventive principles, patent data banks, actual tests and comparisons to explore and analyze said NDAC’s validity in design so that we can study said NDAC’s benefits and gains and, if possible, expect to improve its shortcomings or losses, if any.
Accordingly, this study first collect patents related to air cushions, then explore the needed improvement directions for current static cushions, and, again, adopt contradiction matrix method to locate 40 inventive principles; finally, we select five principles out of said 40 principles to improve current static cushions, viz. dynamics, parameter changes, periodic action, preliminary action, and composite materials. After comparisons, we find that said NDAC’s creation contents well conform to the above-mentioned static cushions’ five principles for improvement. That states said NDAC’s adequacy in design.
This study next compares test subjects’ buttock responses to a flat wooden chair, a (static) ROHO™ air cushion and said NDAC through actual tests. After analyzing the test data recorded by the test subjects, we observe that said NDAC is noticeably superior to the wooden chair and the ROHO™ air cushion in easing sitting pressure and pressure-ulcer prevention and cure. Such conclusion verifies the validity of said NDAC.
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