Lower Limb Rehabilitation Product Design Based on V-Model

ZHOU Hongyu; MIN Longxuan; BAO Zhengfeng; BAI Lang; PENG Zhegong

doi:10.19554/j.cnki.1001-3563.2026.12.022

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Packaging Engineering ›› 2026, Vol. 47 ›› Issue (12) : 272-286. DOI: 10.19554/j.cnki.1001-3563.2026.12.022

Design Discussion

Lower Limb Rehabilitation Product Design Based on V-Model

ZHOU Hongyu, MIN Longxuan, BAO Zhengfeng, BAI Lang, PENG Zhegong^*

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Abstract

The work aims to gradually decompose from needs definition to system design, module implementation and stage verification based on the system engineering V model, and propose a systematic lower limb rehabilitation product design method based on the logic of the V model, to meet the rehabilitation needs of people with knee joint injuries, and address the issues of suboptimal user experience and limited application scenarios of existing lower limb rehabilitation aids. Firstly, the grounded theory was applied to conduct three-level coding of data collected from field interviews and questionnaire surveys to extract user needs, and the basic functions of the product were analyzed in combination with the lower-limb rehabilitation theory. Then, the extension innovation method was employed to map key needs and functional analyses into specific design parameters, forming a functional unit design scheme. In the testing phase, phased simulations using ANSYS Workbench software were conducted to verify the structural rationality and material strength safety of the product. The results showed that this method effectively integrated user needs with engineering constraints, achieved the systematic mapping of user needs to functional structures, and verified the structural reliability of key components through finite element analysis. This work provided theoretical and practical support for the systematic development of intelligent rehabilitation products. The research validates the applicability of the V-model in this field, and offers insights for optimizing multidisciplinary collaborative design processes.

Key words

product design / V model / grounded theory / extension theory / rehabilitation aids

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ZHOU Hongyu, MIN Longxuan, BAO Zhengfeng, BAI Lang, PENG Zhegong. Lower Limb Rehabilitation Product Design Based on V-Model[J]. Packaging Engineering. 2026, 47(12): 272-286 https://doi.org/10.19554/j.cnki.1001-3563.2026.12.022

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