Research on upper limb rehabilitation product design based on NFBMS innovative design synthesis model

doi:10.11996/JG.j.2095-302X.2025010211

Abstract

Abstract:

In order to improve the practicability and rationality of upper limb rehabilitation training products, a functional-behavior-structure (FBS) model was proposed for expansion, with the features of upper limb rehabilitation movements serving as the starting point. A design model for upper limb rehabilitation products based on need-function-behavior-motion-structure (NFBMS) was constructed by integrating user needs and rehabilitation actions. A demand index evaluation system was established through user research, and the entropy weight method was employed to prioritize user needs. The NFBMS model was utilized as the design framework to perform design decoupling. Combined with upper limb rehabilitation actions, the mapping process of the conceptual model of upper limb rehabilitation products was systematically analyzed, and the mapping results were solved through the design structure matrix (DSM) clustering. A functional structure coupling method for upper limb rehabilitation products was established to design a wearable upper limb rehabilitation device for stroke patients. NX12.0 software was used for kinematics simulation analysis to verify the rationality of the upper limb rehabilitation product structure. The research demonstrated that the method based on the NFBMS model, combined with kinematics simulation, enhanced the functional structure of upper limb rehabilitation equipment and provided a new idea for the innovative design of similar products.

Key words: upper limb rehabilitation products, FBS extension model, kinematics simulation, entropy weight method, DSM design structure matrix

CLC Number:

TH789

LI Xiaoying, YANG Lin, WANG Xingda, YAN Luochuang, TANG Yi. Research on upper limb rehabilitation product design based on NFBMS innovative design synthesis model[J]. Journal of Graphics, 2025, 46(1): 211-220.

Figures/Tables 17

References 16

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设计步骤	映射	设计过程说明	设计分析
步骤1	Ne→Nt	将预期用户需求分解为不同的需求类型	分解
步骤2	Ne→Nw	将预期用户需求分解并按权重排序	分解
步骤3	Nt→Fe	将不同的需求类型转化为预期功能	转化
步骤4	Nw→Fe	按需求权重转化为预期功能	转化
步骤5	Fe→Be	将预期功能转化为用户预期行为	转化
步骤6	Be→Me	将预期行为转化为用户预期动作	转化
步骤7	Me→Mw	将预期动作分解为康复动作	分解
步骤8	Me→Mf	将预期动作分解为使用产品时的辅助动作	分解
步骤9	Mw→S	根据康复动作转化为实际的物理结构	转化
步骤10	Mf→S	根据辅助动作转化为实际的物理结构	转化
步骤11	S→Ns	物理结构转化为源自结构的用户需求	转化
步骤12	S→Fs	物理结构转化为源自结构的功能	转化
步骤13	S→Bs	物理结构转化为源自结构的用户行为	转化
步骤14	S→Ms	物理结构转化为源自结构的动作	转化
步骤15	Ne←→Ns	预期用户需求与实际用户需求对比判断结构方案是否可行	对比
步骤16	Fe←→Fs	预期功能与实际功能对比判断结构方案是否可行	对比
步骤17	Be←→Bs	预期用户行为与实际用户行为对比判断结构方案是否可行	对比
步骤18	Me←→Ms	预期动作与实际动作对比判断结构方案是否可行	对比
步骤19	S→So	对物理结构进行优化形成新结构	优化
步骤20	So→D	将优化后结构聚合生成设计方案	聚合

设计步骤	映射	设计过程说明	设计分析
步骤1	Ne→Nt	将预期用户需求分解为不同的需求类型	分解
步骤2	Ne→Nw	将预期用户需求分解并按权重排序	分解
步骤3	Nt→Fe	将不同的需求类型转化为预期功能	转化
步骤4	Nw→Fe	按需求权重转化为预期功能	转化
步骤5	Fe→Be	将预期功能转化为用户预期行为	转化
步骤6	Be→Me	将预期行为转化为用户预期动作	转化
步骤7	Me→Mw	将预期动作分解为康复动作	分解
步骤8	Me→Mf	将预期动作分解为使用产品时的辅助动作	分解
步骤9	Mw→S	根据康复动作转化为实际的物理结构	转化
步骤10	Mf→S	根据辅助动作转化为实际的物理结构	转化
步骤11	S→Ns	物理结构转化为源自结构的用户需求	转化
步骤12	S→Fs	物理结构转化为源自结构的功能	转化
步骤13	S→Bs	物理结构转化为源自结构的用户行为	转化
步骤14	S→Ms	物理结构转化为源自结构的动作	转化
步骤15	Ne←→Ns	预期用户需求与实际用户需求对比判断结构方案是否可行	对比
步骤16	Fe←→Fs	预期功能与实际功能对比判断结构方案是否可行	对比
步骤17	Be←→Bs	预期用户行为与实际用户行为对比判断结构方案是否可行	对比
步骤18	Me←→Ms	预期动作与实际动作对比判断结构方案是否可行	对比
步骤19	S→So	对物理结构进行优化形成新结构	优化
步骤20	So→D	将优化后结构聚合生成设计方案	聚合

连接强度	含义	赋值
极强	连接关系强度极高	10
强	连接关系强度高	8
一般	连接关系强度中等	6
弱	连接关系强度低	4
极弱	连接关系强度极低	2
无	无任何连接关系	0

连接强度	含义	赋值
极强	连接关系强度极高	10
强	连接关系强度高	8
一般	连接关系强度中等	6
弱	连接关系强度低	4
极弱	连接关系强度极低	2
无	无任何连接关系	0

关节名称	运动自由度	极限角度
肩关节	伸展/屈曲	0°~40°/0°~170°
	外展/内收	0°~180°/0°~40°
	旋外/旋内	0°~60°/0°~80°
肘关节	伸展/屈曲	0°~10°/0°~145°
肘关节	旋外/旋内	0°~90°/0°~90°
腕关节	伸展/屈曲	0°~60°/0°~60°
腕关节	外展/内收	0°~15°/0°~30°
MCP	伸展/屈曲	0°~30°/0°~90°
MCP	外展/内收	0°~15°/0°~15°
PIP	屈曲	0°~100°
DIP	屈曲	0°~70°