Harness for thoracic support with double action (immobilization and support) to be used after sternotomy/thoracotomy. It consists of two main support straps (1) with diferent elasticity areas: one immobilization area (7), non-elastic and one area of constant support (6), elastic, in the middle of the former non-elastic, adjustable in terms of intensity of thoracic support via velcro stickers (5) that can be isolated via two handles (3), on each main support strap (1). The harness is placed around the thorax of the patient and offers permanent adjustable support in normal conditions. In cases of heavy cough or flegms, the patient immobilizes completely his thorax by pulling the handles at the two ends of the non-elastic area of the harness. The advantage of this invention is that it fully covers the needs of the patient after the operation as it transforms at any time from a support harness to an immobilization harness and vice versa.
