Table 2.

Lower limb function neuroprostheses: standing and drop foot assistance

Function	Name	Target population	Number of channels	Orthosis use	Surface/implanted/percutaneous	FDA/CE approval	Control interface
Standing	Case Western Reserve University/Department of Veteran Affairs (CWRU-VA) Neuroprosthesis for Standing [17]	SCI	16	AFO	Implanted
Walking with drop foot assistance	Odstock [22]	Stroke	1		Surface	FDA	Foot switch
	STIMuSTEP [23]	Stroke	2		Implanted	CE	Foot switch
	ActiGait [24]	Stroke	4		Implanted	CE	Foot switch
	NESS L300 [25]	Stroke	1		Surface	FDA/CE	Foot switch (force-sensitive resistor placed inside the shoe)
	Walk-aided foot drop stimulator [26]	Stroke	1		Surface	FDA	Tilt sensor or heel sensor

SCI spinal cord injury; AFO ankle–foot orthosis, FDA Federal Drug Administration, CE Conformité Européene