DISPOSABLE SHEATH FOR A MINIATURE ENDOSCOPE
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United States of America Patent
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app pub date -
May 16, 2011
filing date -
Oct 19, 2001
priority date (Note) -
Abandoned
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Abstract
An endoscopic has an fiber optic waveguide that transmits an image from a distal end to a proximal end, the waveguide having an outer diameter of less than 3 mm. A lens system is positioned at the distal end of the fiber optic waveguide. An imaging device is optically coupled to the proximal end of fiber optic waveguide. A disposable sheath extends about the fiber optic waveguide to provide a sterile barrier, and in a preferred embodiment the sheath includes an illumination channel. In a preferred embodiment, the lens system has a first lens element, a second lens element and an aperture stop.
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