Colin Critchlow, 79, from Stafford, had been in the island with his partner for the Liberation Day celebrations.
After shopping in town on 12 May they were making their way to the Duke Hotel for lunch, going up Hospital Lane.
Mr Critchlow was able to walk only short distances and so was using a mobility scooter. As it reached the steep section at the top of the lane, it began rolling backwards and Mr Critchlow fell out, hitting his head on the ground.
Passers-by and police officers went to help him and an ambulance took him to hospital for tests and observations.
Coronial liaison officer Phil Falla said that a CT scan showed he had suffered acute bleeding around his brain.
His condition deteriorated while in hospital and due to his age and frailty it was decided that an operation would not offer a meaningful chance of recovery.
He was offered supportive and palliative care while efforts were made to find him a bed in a hospital near to his home, but there were none available.
Mr Critchlow died on 27 May. A post mortem showed that he had pneumonia, developed because he was not breathing properly while being bed-bound.
Mr Falla asked for the inquest to be adjourned pending further investigation into the capabilities of the mobility scooter.
Judge Graeme McKerrell approved the adjournment, granting the release of Mr Critchlow’s body for repatriation to his home for cremation.