Stereoscopic percutaneous visualization system

Details Stereoscopic percutaneous visualization system Stereoscopic percutaneous visualization system

1994-04-13

1996-12-31

Apley, Richard J.

Surgery

Endoscope

Having imaging and illumination means

600101, 600102, 600172, 600176, A61B 100, A61B 1313

Patent

active

055889492

ABSTRACT:
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 having a distal end, a proximal end, and a passage extending therebetween. The passage is configured to allow stereoscopic vision therethrough, and is preferably tapered from the proximal end to the distal end. A sleeve is positionable in the passage of the cannula, the sleeve having an optical passage also configured to allow stereoscopic vision, preferably by tapering. A lens may be disposed in the optical passage of the sleeve tier wide-angle viewing. Magnification means may be positioned in optical alignment with the optical passage to provide a magnified image of a surgical site.

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