Emails and phone calls such as those are the biggest impetus for Strupat to make his design freely available.  “Anyone from anywhere can look at the design and decide for themselves if they want to manufacture it or share ideas on developing this for their own country,” he said.  Strupat said while his $500 design may not offer the same standard of care as the current $25,000 designs used at hospitals, his machine would save lives, even in a blackout.  “It will run three to four hours before the batteries die,” he said. “If I had my choice, I’d rather be on that than nothing if it came down to it.”