Surgical clamps, tissue retractors and surgical stabilizers are disclosed having gripping surfaces from which extend resilient filaments. The distal ends of some of the resilient filaments abut against engaged vessels, tissues or organs to restrict movement of the vessels, tissue or organs relative to...http://www.google.de/patents/US6461368?utm_source=gb-gplus-sharePatent US6461368 - Vascular clamps and surgical retractors with directional filaments for tissue engagement