| 1. |
Naoshige AKITA, Yoshitsugu MORITA, ＠Hisao SHIIZUKA, A Discrete Event Systems Approach to Model Problem Structure of Drug Ingestion Accidents in Infants , International Symposium on Affective Science and Engineering 2019（ISASE 2019）, 2020.03, There have been numerous incidents of infants opening drug packaging intended for adults and accidentally swallowing
tablets, and this has become a social issue. The authors have previously carried out evaluation testing of child-resistant pill containers,
which are difficult for infants to open but not difficult for ordinary people to use. Based on the findings from these tests, we have
investigated the causes of the issue. In this paper, we modeled the problem structure of accidental drug ingestion by infants using the
Petri Net Model approach, a discrete event system.. |
| 2. |
Naoshige AKITA, Yoshitsugu MORITA, Hisao SHIIZUKA, Systems Thinking Approach to Visualize Problem Structure of Drug Ingestion Accidents by Infants
– Identifying its causal relationships and visualizing overall structure –
, International Symposium on Affective Science and Engineering 2019（ISASE 2019）, 2019.03, There has been no end to cases of infants opening drug containers meant for adults and accidentally ingesting them, and so it has become a social problem. The authors conducted experiments to evaluate child-resistant (CR) pill containers, which infants find difficult to open, and are also not difficult for ordinary people to use. In this paper, based on the findings of these experiments, we implemented systems thinking and interpreted human activities as an open-ended system, visualized the problem structure of drug ingestion accidents by infants, and were able to demonstrate modifications for preventing accidental ingestion by infants and matters requiring caution.. |
| 3. |
秋田 直繁, 森田 昌嗣，椎塚 久雄, A Fundamental Study Evaluating Child Resistant Containers for Pharmaceutical Products
– Report on Container-Opening and Impression-Evaluation Experiments Using the New Easy Seal Open Pack (ESOP) Type of Pill Container –, International Society of Affective Science and Engineering（ISASE）, 2018.06, Cases of accidental ingestion of pharmaceutical products by children are increasing and have become a serious social concern. In this study, we investigated a new type of soft plastic, child resistant pill container, called ESOP (easy seal open package). We first conducted a container-opening experiment on children aged 12 to 36 months, and were able to identify a relative strength of the container and a point for improvement. Next, using the improved ESOP and an existing PTP (press through package), we performed an impression-evaluation experiment regarding the safety of the respective drug container, in the opinion of guardians with 24- to 36-month-old children. By investigating the guardians’ satisfaction level and degree of ascribed importance, we determined their impression of the safety of the two containers, and conclude that it is necessary to improve the items of which the degree of ascribed importance was high and the satisfaction level low.. |
| 4. |
Naoshige AKITA, Yoshitsugu Morita, Hisao SHIIZUKA, Fundamental Consideration of the Use of Inference Patterns in Product Design – A Case Study on the Combination of Abduction and Induction –, International Symposium on Affective Science and Engineering (ISASE), 2017.03, To create innovative ideas, it is important for designers to monitor thought patterns by reflecting upon their thought structure, and then control thought. In this study, we presented a framework for deduction, induction and abduction by applying a design process that is actually used by product designers; and, taking the example of a specific product-development process, showed that a certain pattern, combining abduction and induction, exists when a shape is created. This pattern illustrates what we call an “analogy-based approach’.” We evaluated the usefulness of the method by actually carrying out the molding process adopting this inference pattern.. |
