Feasibility of a Hydraulic Power Assist System for Use in Hybrid Neuroprostheses
Feasibility of using pressurized hydraulic fluid as a source of on-demand assistive power for hybrid neuroprosthesis combining exoskeleton with functional neuromuscular stimulation was explored. Hydraulic systems were selected as an alternative to electric motors for their high torque/mass ratio and...
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| Format: | Article |
| Language: | English |
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Wiley
2015-01-01
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| Series: | Applied Bionics and Biomechanics |
| Online Access: | http://dx.doi.org/10.1155/2015/205104 |
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| author | Kevin M. Foglyano Rudi Kobetic Curtis S. To Thomas C. Bulea John R. Schnellenberger Musa L. Audu Mark J. Nandor Roger D. Quinn Ronald J. Triolo |
| author_facet | Kevin M. Foglyano Rudi Kobetic Curtis S. To Thomas C. Bulea John R. Schnellenberger Musa L. Audu Mark J. Nandor Roger D. Quinn Ronald J. Triolo |
| author_sort | Kevin M. Foglyano |
| collection | DOAJ |
| description | Feasibility of using pressurized hydraulic fluid as a source of on-demand assistive power for hybrid neuroprosthesis combining exoskeleton with functional neuromuscular stimulation was explored. Hydraulic systems were selected as an alternative to electric motors for their high torque/mass ratio and ability to be located proximally on the exoskeleton and distribute power distally to assist in moving the joints. The power assist system (PAS) was designed and constructed using off-the-shelf components to test the feasibility of using high pressure fluid from an accumulator to provide assistive torque to an exoskeletal hip joint. The PAS was able to provide 21 Nm of assistive torque at an input pressure of 3171 kPa with a response time of 93 ms resulting in 32° of hip flexion in an able-bodied test. The torque output was independent of initial position of the joint and was linearly related to pressure. Thus, accumulator pressure can be specified to provide assistive torque as needed in exoskeletal devices for walking or stair climbing beyond those possible either volitionally or with electrical stimulation alone. |
| format | Article |
| id | doaj-art-e72e3e2131874a16b7974ffb55f8548a |
| institution | Kabale University |
| issn | 1176-2322 1754-2103 |
| language | English |
| publishDate | 2015-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Applied Bionics and Biomechanics |
| spelling | doaj-art-e72e3e2131874a16b7974ffb55f8548a2025-02-03T05:52:39ZengWileyApplied Bionics and Biomechanics1176-23221754-21032015-01-01201510.1155/2015/205104205104Feasibility of a Hydraulic Power Assist System for Use in Hybrid NeuroprosthesesKevin M. Foglyano0Rudi Kobetic1Curtis S. To2Thomas C. Bulea3John R. Schnellenberger4Musa L. Audu5Mark J. Nandor6Roger D. Quinn7Ronald J. Triolo8Advanced Platform Technology Center, Louis Stokes Cleveland Department of Veterans Affairs Medical Center, Cleveland, OH 44106, USAAdvanced Platform Technology Center, Louis Stokes Cleveland Department of Veterans Affairs Medical Center, Cleveland, OH 44106, USADepartment of Biomedical Engineering, Case Western Reserve University, Cleveland, OH 44106, USADepartment of Biomedical Engineering, Case Western Reserve University, Cleveland, OH 44106, USAAdvanced Platform Technology Center, Louis Stokes Cleveland Department of Veterans Affairs Medical Center, Cleveland, OH 44106, USADepartment of Biomedical Engineering, Case Western Reserve University, Cleveland, OH 44106, USAAdvanced Platform Technology Center, Louis Stokes Cleveland Department of Veterans Affairs Medical Center, Cleveland, OH 44106, USADepartment of Mechanical and Aerospace Engineering, Case Western Reserve University, Cleveland, OH 44106, USAAdvanced Platform Technology Center, Louis Stokes Cleveland Department of Veterans Affairs Medical Center, Cleveland, OH 44106, USAFeasibility of using pressurized hydraulic fluid as a source of on-demand assistive power for hybrid neuroprosthesis combining exoskeleton with functional neuromuscular stimulation was explored. Hydraulic systems were selected as an alternative to electric motors for their high torque/mass ratio and ability to be located proximally on the exoskeleton and distribute power distally to assist in moving the joints. The power assist system (PAS) was designed and constructed using off-the-shelf components to test the feasibility of using high pressure fluid from an accumulator to provide assistive torque to an exoskeletal hip joint. The PAS was able to provide 21 Nm of assistive torque at an input pressure of 3171 kPa with a response time of 93 ms resulting in 32° of hip flexion in an able-bodied test. The torque output was independent of initial position of the joint and was linearly related to pressure. Thus, accumulator pressure can be specified to provide assistive torque as needed in exoskeletal devices for walking or stair climbing beyond those possible either volitionally or with electrical stimulation alone.http://dx.doi.org/10.1155/2015/205104 |
| spellingShingle | Kevin M. Foglyano Rudi Kobetic Curtis S. To Thomas C. Bulea John R. Schnellenberger Musa L. Audu Mark J. Nandor Roger D. Quinn Ronald J. Triolo Feasibility of a Hydraulic Power Assist System for Use in Hybrid Neuroprostheses Applied Bionics and Biomechanics |
| title | Feasibility of a Hydraulic Power Assist System for Use in Hybrid Neuroprostheses |
| title_full | Feasibility of a Hydraulic Power Assist System for Use in Hybrid Neuroprostheses |
| title_fullStr | Feasibility of a Hydraulic Power Assist System for Use in Hybrid Neuroprostheses |
| title_full_unstemmed | Feasibility of a Hydraulic Power Assist System for Use in Hybrid Neuroprostheses |
| title_short | Feasibility of a Hydraulic Power Assist System for Use in Hybrid Neuroprostheses |
| title_sort | feasibility of a hydraulic power assist system for use in hybrid neuroprostheses |
| url | http://dx.doi.org/10.1155/2015/205104 |
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