Pectus excavatum is a chest disorder occurring in approximately one of every 1,000 children. This congenital deformity is characterised by a concave, 'funnel' shaped chest. The inward facing sternum can apply pressure to the vital organs of the chest, resulting in restricted organ growth and shortness of breath.

Previously, surgical correction of this deformity was made through an invasive procedure requiring resection of cartilage and bone. The Pectus Bar has been developed as an implant for minimally invasive surgery to remodel the chest wall over a two-to-three year period.