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 Line Placement. What is a Central Venous Line? Central venous line placement is the insertion of a catherter/tube through the neck or body and into a large vein that connects to the heart. There are a variety of catheter, both size and configuration.