We claim the ornamental design for an injector body, as shown and described.
FIG. 1 is a perspective view of an injector body, 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;
FIG. 7 is a bottom plan view thereof; and,
FIG. 8 is a cross-sectional view taken along line 8-8 in FIG. 6.
The broken line showing of parts of the injector body is included for the purpose of illustrating use and environment and forms no part of the claimed design. The dash dot lines immediately adjacent to the claimed areas in the views represent the boundaries of the claimed design. None of the broken lines form any part of the claimed design.