A surgical device employs a catheter for removing obstructive material from the body cavity or lumenal passage. The catheter has a blade subassembly on its distal tip for coring, homogenizing, diluting, and aspirating the obstructive material. The obstructive material is homogenized and diluted after...http://www.google.com/patents/US5114399?utm_source=gb-gplus-sharePatent US5114399 - Surgical device
