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Can an Array of Micro-electrodes Implanted in a Human Nerve Record Neural Signals and Provide Feedback?

Can an Array of Micro-electrodes Implanted in a Human Nerve Record Neural Signals and Provide Sensory Feedback Useful for Controlling a Prosthetic Device?

Who can join

Ages 18 to 65 · All sexes

Inclusion Criteria:

* at least 18 years of age and less than 65 years of age
* unilateral and bilateral traumatic or elective upper extremity amputations at the transradial level

Exclusion Criteria:

* incarceration
* pregnancy
* inability to consent
* psychiatric comorbidity
* medical conditions that significantly increase the risk of adverse effects of general anesthesia

About the study

The investigators will investigate the device feasibility of human peripheral nerves and muscles recording and stimulation using percutaneous Utah Slanted Electrode Arrays (pUSEAs) implanted into residual peripheral arm nerves and EMG electrodes implanted in the residual muscles of patients with limb amputations in order to determine the ability of the HAPTIX (Hand Proprioception and Touch Interfaces) System to control an upper-extremity prosthesis, and to provide a sense of cutaneous touch and muscle proprioceptive feedback to the amputee.

What is being tested

• percutaneous Utah Slanted Electrode Arrays (pUSEAs) (device)

Sponsor: University of Utah · Participants: 3 · Started: Dec 21, 2020

Contact the study team

• Douglas Hutchinson, M.D. · Phone: 801-587-5400

Official record on ClinicalTrials.gov — NCT05505513

Locations in the U.S.

From ClinicalTrials.gov, data retrieved Sep 30, 2026. Each study sets its own eligibility; the study team decides who can join.