A somatotopic bidirectional hand prosthesis with transcutaneous electrical nerve stimulation based sensory feedback.
A somatotopic bidirectional hand prosthesis with transcutaneous electrical nerve stimulation based sensory feedback.
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DOI：
10.1038/s41598-017-11306-w
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发表时间：
2017-09-07
影响因子：
4.6
通讯作者：
Micera S
中科院分区：
文献类型：
--
作者：
D'Anna E;Petrini FM;Artoni F;Popovic I;Simanić I;Raspopovic S;Micera S
据截肢者说，感觉反馈是商业假肢缺乏的最重要的功能之一。虽然通过植入式神经接口已经实现了触觉的恢复，但这些方法需要手术干预，并且其长期可用性仍需要充分研究。在这里，我们开发了一种非侵入性的替代方案，它保留了侵入性方法的一些优点，如躯体感觉恢复方案。我们使用经皮电神经刺激（TENS）诱导截肢者的幻手的感觉。这些感觉的特点是在四个截肢者超过两个星期。虽然诱导的感觉往往是感觉异常，位置对应的正中神经和尺神经的神经支配区域的一部分，和脑电图（EEG）记录证实存在适当的反应，在相关的皮层区域。在双向假肢控制期间使用这些感觉作为反馈，患者能够执行否则不可能执行的几项功能任务，例如在外部传感器上施加三个级别的力中的一个。在这些任务期间的性能很高，表明这种方法可能是更具侵入性的解决方案的可行替代方案，在感觉质量和干预的侵入性之间进行权衡。
According to amputees, sensory feedback is amongst the most important features lacking from commercial prostheses. Although restoration of touch by means of implantable neural interfaces has been achieved, these approaches require surgical interventions, and their long-term usability still needs to be fully investigated. Here, we developed a non-invasive alternative which maintains some of the advantages of invasive approaches, such as a somatotopic sensory restitution scheme. We used transcutaneous electrical nerve stimulation (TENS) to induce referred sensations to the phantom hand of amputees. These sensations were characterized in four amputees over two weeks. Although the induced sensation was often paresthesia, the location corresponded to parts of the innervation regions of the median and ulnar nerves, and electroencephalographic (EEG) recordings confirmed the presence of appropriate responses in relevant cortical areas. Using these sensations as feedback during bidirectional prosthesis control, the patients were able to perform several functional tasks that would not be possible otherwise, such as applying one of three levels of force on an external sensor. Performance during these tasks was high, suggesting that this approach could be a viable alternative to the more invasive solutions, offering a trade-off between the quality of the sensation, and the invasiveness of the intervention.
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影响因子：
1.5
作者：
Biddiss, Elaine A.;Chau, Tom T.
通讯作者：
Chau, Tom T.
DOI：
10.1109/tnsre.2012.2217989
发表时间：
2013-01-01
影响因子：
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作者：
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通讯作者：
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作者：
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通讯作者：
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影响因子：
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作者：
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通讯作者：
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影响因子：
3.2
作者：
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通讯作者：
Morari, Manfred