We claim the ornamental design for a surgical instrument, as shown and described.
FIG. 1 is a perspective view of a surgical instrument, showing our new design;
FIG. 2 is a front elevational view thereof;
FIG. 3 is a rear elevational view thereof;
FIG. 4 is a left side elevational view thereof,
FIG. 5 is a right side elevational view thereof;
FIG. 6 is a top plan view thereof; and,
FIG. 7 is a bottom plan view thereof.
The broken lines in the drawings show portions of the surgical instrument or illustrate environmental structure which form no part of the claimed design.
Surgical sagittal saw including a handpiece and a removable blade assembly, the blade assembly including a guide bar, a blade head capable of oscillatory movement and a drive rod for actuating the blade head