Neuroball, invented by UK firm Neurofenix, was chosen from a shortlist of the UK’s 10 best “garden shed inventions” that could seriously transform people’s lives.

The competition was sponsored by innovation foundation Nesta and supported by the government.

Neuroball allows stroke patients to engage in rehabilitation exercises at home and was inspired by relatives of the firm’s co- founders who suffered strokes.It connects to an online platform and enables patients to improve dexterity in their hand and arm in competitive and collaborative training.

The Inventor Prize, launched as part of the government’s industrial strategy last year, will see £50,000 given to its creators to help get their product to market.

“We are so excited to be selected as the winners of the Inventor Prize, from the nine other brilliant and inspiring entrepreneurs,” said the Neurofenix team.

The competition was launched to find “Britain’s grassroots and garden shed inventors” and the £15,000 prize for second-place went to Cambridge-based Urologic for its NuCath catheter device. Third prize was awarded to Edward Rogers for developing the Canute, billed as a “Kindle for blind people”.

Business secretary Greg Clark said: “From researchers in life-saving meds to start-ups in garden sheds, we are home to some of the greatest minds in the world delivering cutting-edge inventions to improve lives.”