`` We have n't seen smiles for awhile , so getting smiles is very exciting , '' Natalie Peterson said in the video . Garrett with severe concussion saved by 3-D medical device . Scientists at University of Washington created a splint out of a biopolymer . The splint is helping Garrett Peterson breathe easier with less pressure from ventilator . The Petersons hope to take their son home soon .
Garrett with severe concussion saved by 3-D medical device . Scientists at University of Washington created a splint out of a biopolymer . The splint is helping Garrett Peterson breathe easier with less pressure from ventilator . The Petersons hope to take their son home soon .