I think it will take awhile for the usual players to recognize and refrain from these deliberate attempts to injure.
I dont think a very large majority of the players today, would even think about initiating an aggressive play to injure someone.
But something has to give.
The idea posted earlier about making the suspension as long as the injury would be a wonderful idea.
But let's go one step further .....
If you are found to commit an offence which is deemed predatory, you should receive the same amount of time the players lost, plus 5 games.
If the player does not miss any games, the minimum penalty a player can receive is 5 games.
Also, if a players penalized with a deliberate attempt to injure ..... the team receives a substantial financial penalty, as well, the offending team gets a 5 minute major as well as a two minute major to be served consecutively. So the offending team will be down 2 men for the full 2 minutes and an extra 3 minutes will still be served to it conclusion.
Maybe that would get their attention.