Nate Yamane’s is an 18-month-old baby with a rare disease which caused the Childs pulmonary arteries to narrow down to dangerous levels, causing the blood to barely pass through them. In such cases the doctor’s use stets which open up the passage in the veins and the blood can pass through, however, in this case, the child’s tiny pulmonary artery had narrowed to just 9 millimetres. Stents which were available could not be used in this case hence there was a need for a custom made solution