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.
Sanford turned its focus to the emerging marker business and introduced the Sharpie marker. The Sharpie Fine Point black marker became the first pen-style permanent marker. It wrote on almost any surface from glass, wood and stone, to plastic, metal and, of course, paper. NBC talk show hosts Johnny Carson and Jack Parr were some of the first celebrity endorsers.