Paul Lamb has told ITV News he is "pleased" that he and the Nicklinson family can take their right-to-die challenges to the Supreme Court and is "already planning to be there".
The Nicklinsons earlier confirmed the Court of Appeal had cleared them to appeal to the higher court and Mr Lamb said, as far as he is concerned, he has been granted leave to appeal too.
Locked-in syndrome sufferer Tony Nicklinson's widow and a paralysed victim have pledged to continue to challenge right-to-die law.
Locked-in syndrome sufferer Tony Nicklinson campaigned for years to win the right to end his life. Here is the timeline of his struggle.