Sentence:  A research team from the University of Pennsylvania tested the health effects of the <WSD>TETS</WSD>‐powered ventriculus sinister assistant device [63]. They implanted a 160 kHz max power 16.9W <WSD>TETS</WSD> system into a cow's body. 
Meaning of the word marked with <WSD> tags:  (initialism) Transcutaneous Energy Transmission System: an experimental subcutaneous device for generating current in heart patients.