STEREOSCOPIC PERCUTANEOUS VISUALIZATION SYSTEM

摘要

The invention provides a percutaneous visualization system for direct, stereoscopic visualization of a body cavity during minimally-invasive surgical procedures. The visualization system includes a cannula (22) having a distal end (24), a proximal end (26), and a passage (30) extending therebetween. The passage (30) is configured to allow stereoscopic vision therethrough, and is preferably tapered from the proximal end to the distal end. A lens (46) may be disposed in the passage of the cannula for wide-angle viewing. Magnification means such as a stereomicroscope (96) may be positioned in optical alignment with the passage (30) and coupled to the cannula (22) to provide a magnified image of a surgical site.