Patio door latch broke off

Thanks for posting. The 82-107 Thumb Lever should work with this handle set. Note however that you might want to check to make sure the internal lock in the door isn't broken and the cause for the old thumb lever breaking. To check this, try manually throwing the handle set with a slotted screwdriver and see if it budges. If it doesn't move, you'll need a new mortise lock as well. We likely can help with that, but we'll need to see a picture of the existing lock to help.