Children born with defects that impair the heart's lower chambers undergo a series of invasive surgeries early in life. The first surgery includes implantation of a plastic tube called a shunt to improve blood flow. However, as children grow, the shunt is often replaced to accommodate their changing bodies. Now, researchers have designed a shunt that expands when activated by light. If developed successfully, this device could reduce the number of open-chest surgeries these children receive.

from Medical Xpress - latest medical and health news stories https://ift.tt/WZzCqmK