A system for maintaining a substantially fixed distance between a localized surface of the heart and the distal end of a surgical device for use in endoscopic surgical procedures. The system comprises a stabilizer for minimizing localized motion of the heart in attached communication with a sensor for...http://www.google.com/patents/US5971976?utm_source=gb-gplus-sharePatent US5971976 - Motion minimization and compensation system for use in surgical procedures