An aid that is useful for a patient to work independently in order to recover joint function between the interfalanx on the finger and prone-supination.

Executing this task correctly calls for the capacity to open and close the finger, while maintaining a set degree of pronation and supination of the hand. To do this, the subject must combine adequate joint movement and muscular function, with good good coordination of hand movements. The aim is to get to know the fine movements of their hands and how to use them better.

This aid provides the possibility of making a small adjustment to the resistance to rotating the bar. This has 2 difference diameters, in order to make it more suited to the type of exercise / patient.