1 1902 Willis Haviland Carrier invented the first air conditioner to control the temperature and humidity of a printing company, marking the first time effort taken to control the temperature of the surroundings. 2  This starts the history of air conditioning.
Following the introduction and widespread use of central venous catheters (CVCs) in adult patients, these devices are now frequently used also in the pediatric population. They have become an indispensable route for venous access, especially in pediatric intensive care units (PICUs).
Central venous catheter. This particular piece of equipment is used only in very complex cases. This is a needle that is inserted into the side of your neck while you are asleep. This needle is used to give you fluids such as salt and sugar solution, or a blood transfusion during the surgery if needed. Again, it will usually be removed before you are moved from the intensive care unit to your hospital room.