Surgery – Endoscope – With tool carried on endoscope or auxillary channel therefore
Patent
1994-03-15
1995-08-29
Apley, Richard J.
Surgery
Endoscope
With tool carried on endoscope or auxillary channel therefore
604164, 604264, 606 47, 600114, 600182, A61B 100, A61B 1734
Patent
active
054451426
ABSTRACT:
A trocar obturator includes a hollow tube having a substantially solid, optically clear tip attached thereto. A distal cutting end of the tip is formed by a pair of opposing, angularly oriented surfaces which converge to a line at that point with a cutting element disposed along the line. For electrosurgical operation, an electrode is positioned along the line. The tip serves as a viewing window and defines a viewing port at its proximal end for an endoscope inserted into the hollow obturator tube for viewing a tissue wall as it is penetrated. The trocar obturator tip may include an axial bore extending between its proximal and distal ends with a viewing rod within the bore for viewing the area ahead of the tip. Here again, the distal cutting end of the tip may be formed by a pair of opposing angularly oriented surfaces which converge to a line. Two cutting elements extend linearly along the distal end of the tip, one on either side of the bore. For electrosurgical operation of the obturator, the cutting elements comprise electrodes. The distal end of the viewing rod may also be formed by a pair of opposing angularly oriented surfaces which converge to a line at its distal end. For best results, particularly with electrosurgical cutting, the distal end of the viewing rod extends slightly beyond the distal cutting end of the tip.
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Apley Richard J.
Ethicon Endo-Surgery Inc.
Leubecker John P.
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