Closed drainage for thoracic cavity is the most basic thoracic surgical treatment, which is commonly used after thoracotomy of lung, esophagus, mediastinum and heart disease. Therefore, to ensure smooth and adequate thoracic drainage, it’s very important to design and manage closed thoracic drainage devices scientifically and rationally. This paper summarizes the principle and structure of all kinds of closed thoracic drainage bottles in China, and the four-cavity drainage bottle and dry drainage bottle produced by a medical company in Shanghai were introduced emphatically, and their advantages and disadvantages were compared.

Closed thoracic drainage; Surgery; Structure