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Intuitive Control of a Hybrid Prosthetic Leg During Ambulation

NCT04038151 · Status: RECRUITING · Phase: NA · Type: INTERVENTIONAL · Enrollment: 20

Last updated 2024-05-17

No results posted yet for this study

Summary

The objective of this research is to determine the clinical benefits of an innovative and lightweight powered leg controlled using our intent recognition framework in laboratory and community environments.

Conditions

  • Amputation

Interventions

DEVICE

Hybrid Leg

The Hybrid Knee uses an actively variable transmission in combination of a passive spring/damper system. This allows the motor torque output to be adapted to the requirements of active dynamic tasks - changing the effective transmission ration from zero (fully passive) for level ground walking to a maximum value (fully active) for sit-to-stand transfers. This provides physiological knee torque and speed with a small motor and primary transmission system while also maximizing electrical efficiency, which minimized battery weight. The knee prototype weights 1.7kg. The Semi-active ankle can actively reposition during non-weight bearing phases of gait and uses a non back driveable transmission to maintain its set point during weight bearing activities.

DEVICE

Prescribed Passive Prosthesis

Participants will participate in training sessions of community skills and advanced ambulation training for their home, prescribed passive prosthesis.

Sponsors & Collaborators

  • Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD)

    collaborator NIH

  • Shirley Ryan AbilityLab

    lead OTHER

Principal Investigators

  • Levi Hargrove, PhD · Shirley Ryan AbilityLab

Study Design

Allocation
RANDOMIZED
Purpose
BASIC_SCIENCE
Masking
NONE
Model
CROSSOVER

Eligibility

Min Age
18 Years
Max Age
95 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2018-12-01
Primary Completion
2024-06-30
Completion
2025-06-30

Countries

  • United States

Study Locations

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT04038151 on ClinicalTrials.gov