Complex sentence: The Berkeley team developed the PTB Below knee prosthesis for amputations below the knee, completely new technologies, The PTB prosthesis enabled the amputee to walk around with no corset or side joints.
Split into simpler sentences: The Berkeley team developed the PTB Below knee prosthesis for amputations below the knee. Using completely new technologies, the PTB prosthesis enabled the amputee to walk around with no corset or side joints.