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Thoracic wall surgical retractors designed to temporarily separate and hold back the edge of an incision around the sternum (i.e., the plate of bone forming the middle of the anterior wall of the thorax), exposing and providing access to other tissues or thoracic structures and/or organs, with a mechanism that retains its position once set (i.e., self-retained retractors). These retractors usually include a mechanism with blunt distal blades that can hold back the sternum after it is widely separated; the opening mechanism usually includes two blades that are moved along a frame that ensures that the blades remain parallel to one another as they move apart. Self-retained sternum thoracic retractors are provided in a variety of blade shapes and configurations.
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