The ornamental design for an intravenous splintcover, as shown and described.
FIG. 1 is a bottom perspective view of an intravenous splint cover according to the present invention.
FIG. 2 is a top perspective view of an intravenous splint cover according to the present invention.
FIG. 3 is a bottom plan view of an intravenous splint cover according to the present invention.
FIG. 4 is a top plan view of an intravenous splint cover according to the present invention.
FIG. 5 is a right side elevation view of an intravenous splint cover according to the present invention.
FIG. 6 is a left side elevation view of an intravenous splint cover according to the present invention.
FIG. 7 is a front elevation view of an intravenous splint cover according to the present invention.
FIG. 8 is a rear elevation view of an intravenous splint cover according to the present invention; and,
FIG. 9 is a perspective environmental view of an intravenous splint cover according to the present invention being applied to a patients arm over an intravenous site, wherein the broken lines showing environmental structure represent unclaimed subject matter and form no part of the claimed design.