Spring-Loaded Stabilization Device to Improve Walking

This invention is a spring-loaded stabilization device designed to enhance walking for individuals experiencing muscle weakness, or instability such as stroke, multiple sclerosis (MS), cerebral palsy, post-surgical recovery, spinal cord injury, or peripheral nerve damage. Older adults who are more prone to muscle weakness and instability may also benefit from this invention. The device passively supports the knee with a spring-loaded mechanism that helps control leg movement and reduce energy expenditure during walking. Early testing has shown it can lower the metabolic cost of transport by around 24% while promoting more symmetrical walking patterns. This results in improved mobility, stability, and overall walking efficiency for users. 

Background: 
Individuals with conditions like post-polio syndrome, stroke, or other neuromuscular impairments often struggle with muscle atrophy, instability, and difficulty maintaining proper leg control during walking. Existing solutions including knee braces or powered exoskeletons tend to be bulky, expensive, and energy intensive. This spring-loaded stabilization device provides a fully passive, lightweight alternative that supports leg movement without the need for motors or batteries. Unlike rigid braces, which may restrict natural motion or powered devices that are costly and mechanically complex, this device stabilizes the knee naturally, making walking more efficient and less tiring for users.

Applications: 

  • Orthopedic rehabilitation
  • Physical therapy and mobility assistance
  • Assistive technology for stroke survivors, elderly individuals, and neuromuscular disorder patients
  • Post-surgical gait and mobility recovery support


Advantages: 

  • Testing proves reduction in metabolic cost of walking by approximately 24%
  • Improves walking symmetry, stability, and overall walking economy 
  • Lightweight and fully passive: no motors, batteries, or electronics required 
  • More cost-effective and user-friendly than powered assistive devices 
  • Suitable for broad range of mobility impairment and user population
Patent Information: