The second law of thermodynamics says that the entropy of the universe (or any isolated system therein) is increasing; i.e., the energy of the universe is becoming more uniformly distributed. It is often noted that the second law indicates that nature tends to go from order to disorder, from complexity to simplicity.
Small-bore catheters and Heimlich valves have been successfully used in. the treatment of pneumothoraces in several studies.4,5 The thoracic vent. (see Figure 1) is a minimally invasive device for the treatment of. pneumothorax. It consists of a polyurethane catheter connected to a. plastic chamber containing a one-way valve.
Tube thoracostomy is the insertion of a tube ( chest tube ) into the pleural cavity to drain air , blood , bile , pus , or other fluids.Whether the accumulation of air or fluid is the result of rapid traumatic filling with air or blood or an insidious malignant exudative fluid , placement of a chest tube allows for continuous , large volume drainage ...