My 15 yr old son was in an ATV accident

My 15 yr old son was in an ATV accident saturday Aug 31st at the Grantsville reservoir and was life flighted to primary children hospital.  He broke his back in the L2, L3 ,L4, L5 . His ribs in 6 places, his right side of his collar bone and punctured his liver. He also has a minor concussion.  Luckily he was not paralyzed. has a long road ahead of him and he will be in the hospital for a few days. I do have insurance but the hospital wants a $500.00 deposit.  Im sure the life flight alone is a good $25,000.00. I am a single mom and am living from pay check to pay check.  If you could find it in your heart to help,even if it was just $1.00, it would be so much appreciated . It all adds up. Thank you so much