Svensson Pamela, Wijk Ulrika, Björkman Anders, Antfolk Christian
a Department of Biomedical Engineering , Lund University , Lund , Sweden.
b Department of Hand Surgery , Skåne University Hospital , Malmö , Sweden.
Expert Rev Med Devices. 2017 Jun;14(6):439-447. doi: 10.1080/17434440.2017.1332989.
The constant challenge to restore sensory feedback in prosthetic hands has provided several research solutions, but virtually none has reached clinical fruition. A prosthetic hand with sensory feedback that closely imitates an intact hand and provides a natural feeling may induce the prosthetic hand to be included in the body image and also reinforces the control of the prosthesis. Areas covered: This review presents non-invasive sensory feedback systems such as mechanotactile, vibrotactile, electrotactile and combinational systems which combine the modalities; multi-haptic feedback. Invasive sensory feedback has been tried less, because of the inherent risk, but it has successfully shown to restore some afferent channels. In this review, invasive methods are also discussed, both extraneural and intraneural electrodes, such as cuff electrodes and transverse intrafascicular multichannel electrodes. The focus of the review is on non-invasive methods of providing sensory feedback to upper-limb amputees. Expert commentary: Invoking embodiment has shown to be of importance for the control of prosthesis and acceptance by the prosthetic wearers. It is a challenge to provide conscious feedback to cover the lost sensibility of a hand, not be overwhelming and confusing for the user, and to integrate technology within the constraint of a wearable prosthesis.
恢复假手感觉反馈这一持续存在的挑战催生了多种研究解决方案，但实际上尚无一项能实现临床应用。具有能紧密模仿正常手并提供自然感觉的感觉反馈的假手，可能会促使使用者将假手纳入自身身体意象，同时也能加强对假肢的控制。涵盖领域：本综述介绍了非侵入性感觉反馈系统，如机械触觉、振动触觉、电触觉以及融合多种模式的组合系统；多触觉反馈。由于存在固有风险，侵入性感觉反馈的尝试较少，但已成功证明其能恢复一些传入通道。在本综述中，还讨论了侵入性方法，包括神经外电极和神经内电极，如袖带电极和横向束内多通道电极。本综述的重点是为上肢截肢者提供感觉反馈的非侵入性方法。专家评论：唤起身体意象已被证明对假肢控制和使用者接受假肢至关重要。提供有意识的反馈以弥补手部失去的感觉，同时又不会让使用者感到不堪重负和困惑，并在可穿戴假肢的限制范围内整合技术，这是一项挑战。
