Blood treatment device

FIG. 1 is a right front perspective of a blood treatment device;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a right side elevational view thereof;

FIG. 4 is a left side elevational view thereof;

FIG. 5 is a rear elevational view of thereof;

FIG. 6 is an enlarged top plan view thereof; and,

FIG. 7 is an enlarged bottom view thereof.

The broken lines in FIGS. 3, 4, 5 and 7 illustrate portions of a blood treatment device that form no part of the claimed design.