目的 论证框架创新理论在“居家医疗”相关产品及服务设计中方法的延展性与可行性，解析不同主客体之间的行为关联和情境互动。方法 运用文献研究法、实证研究法、用户访谈法，以框架创新为理论基础，进一步细化“双重叙事线”设计思维，并立足于“居家医疗”服务发展需求，将其运用于面向T1DM患儿“减创式”家用注射系统设计实践中。结论 将框架创新理论与家用医疗产品设计相结合，优化“双重叙事线”中关系描述、流程叙述、愿景阐述的三层问题解析路径，既可以有助于厘清多方用户在多重情境中的需求变化和服务关系，也能针对复杂情境有效推进产品升级及服务整合。

This paper aims to demonstrate the malleability and feasibility of methods on products relevant to the home medical treatment and the design of product and service systems based on the refinement of the theories of framework innovation, and to analyze the behavior relevancy and situation interaction of different subjects. Based on the theory of framework innovation, this paper uses the methods of literature research, empirical research and user interviews (e.g., creating personas and user flow charts) to further demonstrate and refine the "dual narrative line" design thinking, and to apply it to the "reduced trauma" injection system design for children with T1DM based on the development needs of "home medical treatment". Combining the framework innovation theory with the design of home medical products and optimizing the three-layer problem analysis path of relationship description, process description, and vision statement in the "dual narrative line" can not only help to clarify the demand changes and service relationships of multi-users in multiple situations, but also effectively promote products upgrade and service for complex situations.