Surgical instrument including viewing optics and an atraumatic probe
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United States of America Patent
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Apr 7, 1998
Grant Date -
N/A
app pub date -
Apr 29, 1996
filing date -
Nov 25, 1992
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A surgical instrument incorporating visualizing optics is disclosed. The instrument comprises a handle supporting a rigid hollow shaft, an expanded tip is located on the distal end of the shaft providing a surface that will not tear or easily penetrate tissue. A fiber-optic assembly, containing at least one illumination transmitting fiber, a plurality of image-carrying fibers and an objective lens mounted near the distal end of the image fibers runs the length of the shaft. The objective lens is positioned relative to an opening in the tip allowing viewing. Light for illuminating the surgical site passes through one or more illumination fibers and through the opening in the tip of the probe. Light reflected from the tissue at the tip of the probe is focused onto the distal face of the image bundle by an objective lens and is then transmitted to the proximal end of the image bundle. Connectors on the proximal ends of the illumination fibers and image fibers facilitate their being coupled to an illumination source and a viewing device.
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