Wireless distributed functional electrical stimulation system
<p>Abstract</p> <p>Background</p> <p>The control of movement in humans is hierarchical and distributed and uses feedback. An assistive system could be best integrated into the therapy of a human with a central nervous system lesion if the system is controlled in a simil...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
BMC
2012-08-01
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| Series: | Journal of NeuroEngineering and Rehabilitation |
| Online Access: | http://www.jneuroengrehab.com/content/9/1/54 |
| _version_ | 1819087982136655872 |
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| author | Jovičić Nenad S Saranovac Lazar V Popović Dejan B |
| author_facet | Jovičić Nenad S Saranovac Lazar V Popović Dejan B |
| author_sort | Jovičić Nenad S |
| collection | DOAJ |
| description | <p>Abstract</p> <p>Background</p> <p>The control of movement in humans is hierarchical and distributed and uses feedback. An assistive system could be best integrated into the therapy of a human with a central nervous system lesion if the system is controlled in a similar manner. Here, we present a novel wireless architecture and routing protocol for a distributed functional electrical stimulation system that enables control of movement.</p> <p>Methods</p> <p>The new system comprises a set of miniature battery-powered devices with stimulating and sensing functionality mounted on the body of the subject. The devices communicate wirelessly with one coordinator device, which is connected to a host computer. The control algorithm runs on the computer in open- or closed-loop form. A prototype of the system was designed using commercial, off-the-shelf components. The propagation characteristics of electromagnetic waves and the distributed nature of the system were considered during the development of a two-hop routing protocol, which was implemented in the prototype’s software.</p> <p>Results</p> <p>The outcomes of this research include a novel system architecture and routing protocol and a functional prototype based on commercial, off-the-shelf components. A proof-of-concept study was performed on a hemiplegic subject with paresis of the right arm. The subject was tasked with generating a fully functional palmar grasp (closing of the fingers). One node was used to provide this movement, while a second node controlled the activation of extensor muscles to eliminate undesired wrist flexion. The system was tested with the open- and closed-loop control algorithms.</p> <p>Conclusions</p> <p>The system fulfilled technical and application requirements. The novel communication protocol enabled reliable real-time use of the system in both closed- and open-loop forms. The testing on a patient showed that the multi-node system could operate effectively to generate functional movement.</p> |
| first_indexed | 2024-12-21T21:44:47Z |
| format | Article |
| id | doaj.art-3facc719be554c3e9ab0dd893b12e47c |
| institution | Directory Open Access Journal |
| issn | 1743-0003 |
| language | English |
| last_indexed | 2024-12-21T21:44:47Z |
| publishDate | 2012-08-01 |
| publisher | BMC |
| record_format | Article |
| series | Journal of NeuroEngineering and Rehabilitation |
| spelling | doaj.art-3facc719be554c3e9ab0dd893b12e47c2022-12-21T18:49:15ZengBMCJournal of NeuroEngineering and Rehabilitation1743-00032012-08-01915410.1186/1743-0003-9-54Wireless distributed functional electrical stimulation systemJovičić Nenad SSaranovac Lazar VPopović Dejan B<p>Abstract</p> <p>Background</p> <p>The control of movement in humans is hierarchical and distributed and uses feedback. An assistive system could be best integrated into the therapy of a human with a central nervous system lesion if the system is controlled in a similar manner. Here, we present a novel wireless architecture and routing protocol for a distributed functional electrical stimulation system that enables control of movement.</p> <p>Methods</p> <p>The new system comprises a set of miniature battery-powered devices with stimulating and sensing functionality mounted on the body of the subject. The devices communicate wirelessly with one coordinator device, which is connected to a host computer. The control algorithm runs on the computer in open- or closed-loop form. A prototype of the system was designed using commercial, off-the-shelf components. The propagation characteristics of electromagnetic waves and the distributed nature of the system were considered during the development of a two-hop routing protocol, which was implemented in the prototype’s software.</p> <p>Results</p> <p>The outcomes of this research include a novel system architecture and routing protocol and a functional prototype based on commercial, off-the-shelf components. A proof-of-concept study was performed on a hemiplegic subject with paresis of the right arm. The subject was tasked with generating a fully functional palmar grasp (closing of the fingers). One node was used to provide this movement, while a second node controlled the activation of extensor muscles to eliminate undesired wrist flexion. The system was tested with the open- and closed-loop control algorithms.</p> <p>Conclusions</p> <p>The system fulfilled technical and application requirements. The novel communication protocol enabled reliable real-time use of the system in both closed- and open-loop forms. The testing on a patient showed that the multi-node system could operate effectively to generate functional movement.</p>http://www.jneuroengrehab.com/content/9/1/54 |
| spellingShingle | Jovičić Nenad S Saranovac Lazar V Popović Dejan B Wireless distributed functional electrical stimulation system Journal of NeuroEngineering and Rehabilitation |
| title | Wireless distributed functional electrical stimulation system |
| title_full | Wireless distributed functional electrical stimulation system |
| title_fullStr | Wireless distributed functional electrical stimulation system |
| title_full_unstemmed | Wireless distributed functional electrical stimulation system |
| title_short | Wireless distributed functional electrical stimulation system |
| title_sort | wireless distributed functional electrical stimulation system |
| url | http://www.jneuroengrehab.com/content/9/1/54 |
| work_keys_str_mv | AT jovicicnenads wirelessdistributedfunctionalelectricalstimulationsystem AT saranovaclazarv wirelessdistributedfunctionalelectricalstimulationsystem AT popovicdejanb wirelessdistributedfunctionalelectricalstimulationsystem |