A balloon catheter comprised a balloon catheter body, a balloon, a main passage and an auxiliary passage. The balloon is provided on the periphery of the tip portion of the catheter body to inflate for blocking a bloodstream at a desired site inside blood vessels. The auxiliary passage is provided for...http://www.google.com.au/patents/US4983166?utm_source=gb-gplus-sharePatent US4983166 - Balloon catheter and method of use of the same
