A method for obtaining access to a hollow organ of a patient comprises the steps of (i) providing a tubular member, (ii) pressing an end of the tubular member against a wall of the hollow organ, and (iii) removing a section of the organ wall surrounded by the tubular member, while maintaining the tubular...http://www.google.com/patents/US5470320?utm_source=gb-gplus-sharePatent US5470320 - Method and related device for obtaining access to a hollow organ
