About 30 have sold so far, and the company's director of marketing and communications, Allison Sojka, reckons that medical centers have already helped rehabilitate somewhere between 500 and 1, 000 patients.
Sojka said that the company will release new variable-assist software option in June that'll let patients contribute from zero to 100 percent of the walking power, with the exoskeleton providing the rest -- though there's no pricing yet for that update.