Dec 4, '04. a cordis is a large-bore, usually single-lumen central line. it can be placed ij, subclavian, or femoral. it is also sometimes called an introducer, becuase it is frequently used as a pathway for a swan ganz (pa catheter) or transvenous pacer (the swan or pacer is floated through the cordis).
Best Answer: Why are they called 'magic markers'? The inventor Sidney Rosenthal named his new marking device Magic Marker because of its ability to mark on almost every surface. History of Pens & Writing Instruments. The first marker was probablythe felt tip marker, created in the 1940's. It was mainly used for labeling and artistic applications.
Yukio Horie of the Tokyo Stationery Company invented a modern fiber-tipped pen in 1962. Highlighters and fine-line markers appeared in 1970's. Binney & Smith, who made Crayola, bought name âMagic Markerâ in 1989 and started selling improved permanent markers and highlighters.