FIG. 1 is a first perspective view of a membrane support structure of a flow through cell for blood gas measurement showing my new design, the broken line showing of the flow through passage is for illustrative purposes only and forms no part of the claimed design.

FIG. 2 is a second perspective view thereof;

FIG. 3 is a top view thereof;

FIG. 4 is a left side view thereof, the right side view being a mirror image thereof;

FIG. 5 is a bottom view thereof; and,

FIG. 6 is a first end view thereof, the second end view being a mirror image thereof.