Help for Connor and Tanya

My great-grandson, Connor has 100% curvature of the spine.  He has been to three different hospitals trying to get this done and finally Vanderbilt said yes and scheduled the surgery for the following week.   Connor just had the  "halo" attached to his skull to help stretch his spine, so that he then can have back surgery to prevent the ribs from crushing his lungs.
 They will be at Vanderbilt Children's Hospital for 4-7 weeks for the halo and then he will have the surgery to his back.  Tanya is his guardian and will be with him the whole time. She is a single parent and still has all her bills to pay.  She has used up all her vacation time when he was sick back in February and he spent two weeks in the hospital with pneumonia and a collapsed lung.
Connor has Transverse Myelitis which he contracted two weeks after his first birthday. 
Any help you can give will be much appreciated. The funds will be used to pay the regular monthly bills that still need to be paid.