A catheter for injecting medicants into the endocardium, myocardium or other portions of the cardiovascular system is presented where the catheter has apertures therein for ejection and retraction of a needle. The catheter is designed for the apertures in the catheter to press against the tissue to be...http://www.google.com/patents/US6605061?utm_source=gb-gplus-sharePatent US6605061 - Catheter for drug injection in cardiovascular system
