Directional surgical device for use with endoscope, gastroscope, colonoscope or the like
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United States of America Patent
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Jun 1, 1999
Grant Date -
N/A
app pub date -
Apr 30, 1997
filing date -
Apr 30, 1997
priority date (Note) -
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Abstract
A surgical instrument assembly has an endoscope with an instrument channel and a sheathed elongate tubular member inserted into the instrument channel. The tubular member is provided with a distal end portion having at least one resiliently biased, curved portion tending to direct the tip of the distal end portion in a direction angularly offset from the axis of the body insertion tube at its distal end. The elongate tubular member is itself longitudinally slidably positioned within a relatively stiff, straight sheath having mechanical properties sufficient to straighten the curved portion of the tubular member when the curved portion is positioned within the sheath, proximal of the sheath's distal end. An elongate flexible endoscopic instrument is mounted into the tubular member so that an operative tip is located at a distal end of the tubular member.
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