Assessment of a Hybrid Pump for Vacuum Suspension of Prosthetic Sockets for Persons With Lower Limb Loss to Characterize the Effects of Added Movement on Socket-reaction Torques

Completed · Not applicable

Conditions studied: Amputation

In brief

Prostheses can be suspended from the amputated limb using a variety of techniques, such as straps and suction. Suspending the prosthesis by creating a vacuum between the prosthetic socket and limb using a pump has benefits over other techniques including improved limb health and mobility. A new pump design will be tested by prosthesis users in the laboratory to verify its functionality during walking.

Key facts

Study ID

NCT04230512

Run by

VA Office of Research and Development

People needed

12

Starts

2020-04-04

Expected to finish

2026-03-31

Last updated by the study team

2026-05-11

Who can join

Age: 18 and older, up to 80. Sex: any. Healthy volunteers: not accepted.

You may qualify if…

• Ability to stand quietly and walk for 10 minutes continuously without an assistive device (e.g. cane or walker) and without undue fatigue or health risks
• Pre-classified clinically to be at least a limited community ambulator of Medicare Functional Classification Level (K)2
• Residual limb in good health
• At least six months experience with a definitive prosthesis that utilizes vacuum assisted suspension

You may not qualify if…

• Pathologies aside from amputation or taking medicine that would influence walking or balance
• Poor prosthetic fit or poor residual limb sensation

Where it is running

• Jesse Brown VA Medical Center, Chicago, IL — Chicago, Illinois, United States

Full record on ClinicalTrials.gov

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