The technical meaning of "sentient" is "capable of feeling". It's opposed to "sapient", which means capable of thinking.
It's a reasonable adaptation of the term to have it mean "capable of transmitting touch signals to the wearers nervous system" in the context of prosthetics.
It's a reasonable adaptation of the term to have it mean "capable of transmitting touch signals to the wearers nervous system" in the context of prosthetics.