The present invention provides an improved intravenous catheter which can be installed at a minimal diameter and expanded once installed to a full operational diameter. The apparatus of the present invention comprises a first catheter tube member with an expandable sidewall and a wider second member...http://www.google.fr/patents/US5176659?utm_source=gb-gplus-shareBrevet US5176659 - Expandable intravenous catheter and method of using
Expandable intravenous catheter and method of using
