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).
Hickman*, Leonard*and Broviac*Catheters are designed for long-. term vascular access and for use in patients that lack adequate periph-. eral venous access. They are available in single, dual and triple lumen. catheters. All Hickman*, Leonard*and Broviac*central venous catheters are. designed for the administration of I.V. fluids, blood products, drugs, and. parenteral nutrition solutions, as well as blood withdrawal. Note: While smaller lumen Broviac* catheters have been used suc-.