I remember seeing this movie around 1990 and it was already on TV so it could have been a little older.
It was about a lab where they were trying to catch the souls and consciousnesses of dying people. They had a guy who had terminal cancer and his name was Kent, and when he died they were gonna attempt it on him. They also had a little girl who was kind of a medium, and could cross with his consciousness without dying.
I also remember that one of the scientists was a woman who had lost her kid when he drowned, and ended up falling in love with Kent.