Methods and apparatus are disclosed for inserting flexible, multi-lumen catheters into blood vessels, and in particular, for inserting flexible, split-tip catheters into blood vessels. The invention accomplishes these objects by temporarily stiffening each catheter lumen and tip independently through...http://www.google.com.au/patents/US20040243095?utm_source=gb-gplus-sharePatent US20040243095 - Methods and apparatus for inserting multi-lumen spit-tip catheters into a blood vessel
