1. Product Overview
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Product Name: Step Booster
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Slogan: Walk with Confidence
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Developer: Refind Inc.
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Definition: A detachable, portable powered assist device that attaches to existing passive leg braces (AFO, KAFO, etc.) to provide walking assistance.
2. Key Features & Characteristics
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Superior Scalability
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Features a modular system that allows attachment to various existing braces, including AFO (Ankle-Foot Orthosis), KAFO (Knee-Ankle-Foot Orthosis), HKAFO (Hip-Knee-Ankle-Foot Orthosis), and orthopedic shoes.
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Ambidextrous design allows use on either the left or right side without distinction.
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AI Personalized Assistance
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AI analyzes the user's specific gait characteristics to calculate and provide the optimal assistive force required for each individual.
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Working Principle: Gait Identification → Calculation of Required Assistive Force → Provision of Assistance (Tendon-driven mechanism).
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Portability & Lightweight Design
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Weight: Under 600g (excluding battery).
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Dimensions: 100 x 120 x 45 mm (W x L x H).
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The detachable design allows the device to be mounted only when needed, minimizing the burden on daily life.
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Rationality (Cost-Effectiveness)
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Delivers walking assistance benefits at a significantly lower cost (approx. 2.5 million KRW) compared to expensive exoskeleton robots (over 100 million KRW) or competing products (tens of millions of KRW).
3. Clinically Proven Effects
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Alleviation of Pathological Gait
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Verified improvement in various pathological gait patterns, including circumduction gait, foot drop, and abnormal knee flexion.
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Improvement of Walking Function
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Timed Up and Go Test (TUGT): Completion time reduced by approx. 12.8%.
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10-Meter Walk Test (10MWT): Walking speed increased by approx. 7.4%.
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6-Minute Walk Test (6MWT): Walking distance increased by approx. 5.4%, and Physiological Cost Index (PCI) decreased by approx. 29.3%.
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User Satisfaction
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Increased willingness to wear and frequency of use due to more natural gait, enhanced stability, and reduced fatigue.
4. Target Audience
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Walk Again: Individuals with a strong determination to walk on their own two feet again (Early to mid-stage rehabilitation).
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Better Movement: Users who feel frustrated by the restricted mobility of conventional braces.
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Daily Freedom: Those seeking a more comfortable, natural, and safe walking experience (Mild gait impairment, hemiplegia, etc.).
5. Key Specifications Summary
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Driving Method: Supports Foot Clearance using a Tendon-driven mechanism.
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Operating Time: Over 4 hours of continuous use.
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Materials: Aluminum case, Synthetic resin tendon.
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Wearing Method: Worn on the pelvis with weight distribution via suspenders.