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As a polio survivor in Britain who depended on a ventilator to breathe he tackled the problem of being tied to an unwieldy breathing machine, a tie that severely restricted his ability to move around about his environment.
So he made a way to break that tie. He was an innovator who in 1962 developed a method of putting a ventilator on a battery powered wheelchair.
Cavendish's story is told in the new movie Breathe that is hitting theaters this month.
Post-Polio Health International