Problem with kitchen utensils for people with arthritis?

Hi everyone! Im an A level student currently studying Design Technology at school. my problem which i have chosen to investigate and resolve is kitchen utensils for people with Arthritis. i have already been looking and asking around however need more help and advice regarding which utensils people with arthritis struggle to use the most, or what needs to be invented (perhaps a new utensil in itself) please help me and post any ideas whether you have a form of arthritis or not, comments and ideas would be gratefully appreciated! Thanks