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  • Fixed loop instruments designed for temporary occlusion of large vascular and cardiac structures to control bleeding during surgical procedures (also known as cardiovascular tourniquets). These instruments typically consist of a manual hollow tube with a proximal handle and a detachable stylet placed inside. The stylet includes at the distal end an exposed loop used to temporarily occlude large vascular and/or cardiac structures. The instrument may be intended for handheld use or it may include a ratchet mechanism that permits attachment to the body, avoiding the need of manual holding during the procedure. Cardiovascular occlusion surgical fixed loop instruments are used in cardiothoracic surgery to avoid bleeding in procedures such as repair of heart valves and treating of large vessels after traumatic accidents.
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