NDLI: Targeted muscle reinnervation for improved myoelectric prosthesis control

Content Provider	IEEE Xplore Digital Library
Author	Kuiken, T.A. Dumanian, G.A. Lipschutz, R.D. Miller, L.A. Stubblefield, K.A.
Copyright Year	2005
Description	Author affiliation: Rehabilitation Inst. of Chicago, Neural Eng. Center for Artificial Limbs, Chicago, IL (Kuiken, T.A.; Dumanian, G.A.; Lipschutz, R.D.; Miller, L.A.; Stubblefield, K.A.)
Abstract	A novel method for the control of myoelectric upper limb prostheses has been developed. By transferring the residual nerves of amputees to spare muscles in or near the residual limb, additional myoelectric control signals are made that allow the simultaneous control of multiple degrees-of-freedom in the prostheses. Since the nerve function correlates physiologically to the function it is controlling in the prosthesis, operation is more natural and thus easier than current control paradigms. The procedure has been successfully employed in two amputees. A patient with traumatic bilateral shoulder disarticulation amputations had four brachial plexus nerves transferred onto denervated pectoralis muscle segments. Four independent new myosites were created that allowed for simultaneous control of two degrees-of-freedom with shoulder movement still available for a third degree-of-freedom. Objective testing showed a doubling of blocks moved with a box and blocks test and a 26% increase in speed with a clothes pin moving test. Furthermore, the skin of the anterior chest was reinnervated with sensory fibers from the patient's hand and arm. A second patient with a long transhumeral amputation had his median nerve transferred on to a denervated medial biceps and his distal radial nerve transferred on to his brachialis muscle. Both nerves successfully reinnervated the respective muscles. This patient was then also able to simultaneously use myoelectric control for a powered elbow and hand, and simultaneously controlled wrist rotation with shoulder motion for a total of three degrees-of-freedom. Objective testing showed over a three-fold improvement of speed with the block and box test and significant improvement with AMPS testing. Skin sensory reinnervation did not occur. These patients demonstrate the potential for targeted muscle reinnervation to improve the function of powered artificial limbs and possibly provide unique and valuable sensory feedback to the amputee
Starting Page	396
Ending Page	399
File Size	1919737
Page Count	4
File Format	PDF
ISBN	0780387104
DOI	10.1109/CNE.2005.1419642
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2005-03-16
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Current control Wrist Optical fiber sensors Muscles Skin Brachytherapy Motion control Optical fiber testing Elbow Prosthetics
Content Type	Text
Resource Type	Article

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