Videoarthroscope with one-handed control
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United States of America Patent
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Nov 13, 1990
Grant Date -
N/A
app pub date -
Jan 25, 1990
filing date -
Jan 25, 1990
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The present invention provides a videoarthroscope which is longitudinally compact so tht it can be held and controlled with one hand. the videoarthroscope of the present invention includes a needle assembly and a focusing assembly rotatable relative to each other to permit rotation of the needle tip. The focusing assembly includes a rotatable focusing ring. All confronting rotating surfaces are sealed by a multilobed seal and provided with a lubricant to promote both ease of movement and sealing of movable joints. The videoarthroscope includes in its optical assembly a movable focusing group comprised of two lenses and an optional fixed telescope lens.
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