I think you might want to check out this lesson: https://gettingstarted.mendixcloud.com/link/module/22/lecture/199
and this lesson: https://gettingstarted.mendixcloud.com/link/module/9/lecture/160
From your domain model it is not clear how this entities relate to users. You might set entitty access on the Patiensupport so that it can only read the records where the user is the owner but from this screenshot alone I can not tell if that is the way to go.
Regards,
Ronald