A guide catheter and a needle catheter are disclosed. The guide catheter construction provides for maximum articulation of the deflectable tip and maximum torque response during rotation. The needle catheter may include a release mechanism that imparts a sudden force to the needle in order to facilitate...http://www.google.fr/patents/US6955657?utm_source=gb-gplus-shareBrevet US6955657 - Intra-ventricular substance delivery catheter system
Intra-ventricular substance delivery catheter system
