Catheter exchange device

摘要

An automatic catheter exchange syringe has a biasing means which drives the syringe in a fluid expelling stroke at a single touch. The syringe includes a barrel portion with a plunger slidably disposed therein. The biasing means applies a driving force to the plunger to drive the plunger in a fluid expelling stroke at a predetermined rate. The biasing means may include compression or tension springs or a bifurcated compression spring assembly.