A catheter arrangement for opening or closing hollow spaces, cavities, passages and the like comprising a guide catheter and a dilatation catheter. A dilatation element arranged at the dilatation catheter has an at least partially cylindrical foldable wall. The catheterization technique employable with...http://www.google.es/patents/US4195637?utm_source=gb-gplus-sharePatente US4195637 - Catheter arrangement, method of catheterization, and method of manufacturing a dilatation element
Catheter arrangement, method of catheterization, and method of manufacturing ...