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Insertion Point Eccentricity Controlled Ankle Mechanism in Conjunction with Functional Electric Stimulation

Polinkovsky, Arkady A.
http://rave.ohiolink.edu/etdc/view?acc_num=case1279679194

Abstract Details

2010, Master of Sciences, Case Western Reserve University, EMC - Mechanical Engineering.
The goal of this project was to have a prototype of an active Ankle Foot Orthosis (AFO) that would help control and assist plantar flexion and orsiflexion with a single motor acting as an antagonistic pair of uscles. To control the amount and direction of the torque about the ankle Insertion Point Eccentricity Control (IPEC), a way of moving a stored energy, was used. The device, a heavily altered Ankle Foot Orthosis (AFO), would help control and assist plantar flexion and dorsi-flexion. A challenge was also to keep the weight added to the standard AFO at no more than one pound. After initial testing, it was seen that the IPEC AFO is able to provide 3.51 ± .05 Nm about the ankle in dorsi-flexion and 3.88 ± .15 Nm in plantar flexion with a spring modulus of 17.76 lbs/inch and an initial tension of 17.24 lbs. The torque was found to be sufficient to move the foot during walking. The design’s most important objective was to be advantageous and safe for the user. The user would range from a Spinal Cord Injury (SCI) subject to a stroke subject with drop-foot or other disorder concerning the ankle. The IPEC AFO cycles quickly enough for an SCI FES user. The IPEC AFO is an improvement because it leverages energy stored in the spring to reduce power required by the motor.
Roger Quinn, PhD (Advisor)
Roger Quinn, PhD (Committee Chair)
Ronald Triolo, PhD (Committee Member)
Dwight Davy, PhD (Committee Member)
66 p.
Biomedical Research; Engineering; Mechanical Engineering
Functional Electric Stimulation; Ankle Foot Orthosis; Spinal Cord Injury

Recommended Citations

Citations

  • Polinkovsky, A. A. (2010). Insertion Point Eccentricity Controlled Ankle Mechanism in Conjunction with Functional Electric Stimulation [Master's thesis, Case Western Reserve University]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=case1279679194

    APA Style (7th edition)

  • Polinkovsky, Arkady. Insertion Point Eccentricity Controlled Ankle Mechanism in Conjunction with Functional Electric Stimulation. 2010. Case Western Reserve University, Master's thesis. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=case1279679194.

    MLA Style (8th edition)

  • Polinkovsky, Arkady. "Insertion Point Eccentricity Controlled Ankle Mechanism in Conjunction with Functional Electric Stimulation." Master's thesis, Case Western Reserve University, 2010. http://rave.ohiolink.edu/etdc/view?acc_num=case1279679194

    Chicago Manual of Style (17th edition)

case1279679194
683
© 2010, all rights reserved.
This open access ETD is published by Case Western Reserve University School of Graduate Studies and OhioLINK.