Are there heavy wearable arm weights?

I have a broked scaphoid bone and need surgery and can not lift any weights what require the use of my wrist (dumbells, barbells, etc). I know there is weighted clothing but I can not find any weighted arm clothing that weighs more than 3 pounds. I am looking for something in the 40 lb range and I would not wear it all day, just for short periods of time. Do things like this even exist?