There is disclosed a guiding tube for introducing rod-like medical instruments such as a catheter, which can be easily split and removed from, for example, a catheter, after the catheter inserted through the guiding tube has been attached to a blood vessel. The guiding tube comprises a main body provided...http://www.google.es/patents/US4781690?utm_source=gb-gplus-sharePatente US4781690 - Guiding tube for medical instruments
