A costal expansion and elevation device (REDU) is a special device that is used to expand the costal arch and create access for surgical intervention on the chest. The REDU is an important tool for surgeons because it allows them to access important organs and structures in the chest that may not be accessible without its use.
Costal arch expander-lifters can be used for various diseases and conditions of the breast: in the presence of adhesions, strictures of the esophagus, scar changes in the breast,