Haulin Hooks

To cut a long story short, I'd been lifting for almost 4 years before I got seriously injured a few months back. I've had to work very hard for many months just to get back to normal body function and am now nearing the stage where I could try getting back into a bit of light exercise. So, I'm weak and a little physically handicapped. My biggest problem for lifting will be the permanent loss of most of my flexor function in my ring and little fingers on my right hand.

A patient who had been through a similar ordeal recommended Haulin Hooks for lifting. Now, I can picture how these would be helpful for things like deadlifts, bent over rows and shrugs, but what about exercises like bench and shoulder press, bicep curls, brachioradialis curls, pull ups/lat machine, does anyone have anything they'd recommend looking into to make these exercises physically possible and safe?

Another safety query on Haulin Hooks: Is there much risk of injury? For example if you had maxed out at the top of a deadlift or bent over row and had to suddenly let the weight go would you not just tear your arm right out of the axilla? Same principle for pull ups or lat machine. These are the sort of things I'd be paranoid about

The ring and little fingers are the foundation of your power grip, if you've never had an idea of how losing function in these would affect you, just try to (gently, just as a test) pickup a dumbbell that you'd normally be able to bench or shoulder press with just your thumb, index and middle fingers and you'll understand.

Any advice would be greatly appreciated.