FIG. 1 is a front perspective view of an open endoscopic instrument for retrograde biopsy according to the present invention.
FIG. 2 is a front perspective view of a closed endoscopic instrument for retrograde biopsy of FIG. 1.
FIG. 3 is a left view of the open endoscopic instrument for retrograde biopsy of FIG. 1.
FIG. 4 is a left view of the closed endoscopic instrument for retrograde biopsy of FIG. 2.
FIG. 5 is a right view of the open endoscopic instrument for retrograde biopsy of FIG. 1.
FIG. 6 is a right view of the closed endoscopic instrument for retrograde biopsy of FIG. 2.
FIG. 7 is a top view of the open endoscopic instrument for retrograde biopsy of FIG. 1.
FIG. 8 is a top view of the closed endoscopic instrument for retrograde biopsy of FIG. 2.
FIG. 9 is a bottom view of the open endoscopic instrument for retrograde biopsy of FIG. 1.
FIG. 10 is a bottom view of the closed endoscopic instrument for retrograde biopsy of FIG. 2.
FIG. 11 is a front view of the open endoscopic instrument for retrograde biopsy of FIG. 1.
FIG. 12 is a front view of the closed endoscopic instrument for retrograde biopsy of FIG. 2.
FIG. 13 is a rear view of the open endoscopic instrument for retrograde biopsy of FIG. 1; and,
FIG. 14 is a rear view of the closed endoscopic instrument for retrograde biopsy of FIG. 2.
The dashed lines illustrate environment that does not form a part of the present invention, and no claim is made to the material illustrated with dashed lines.