Manifold diaphragms

A disposable manifold having a diaphragm integrated therein-and adapted for use in a dialysis machine, said diaphragm comprising:

• a first sloped surface having a first end and a first bend wherein a distance between the first end and first bend defines a length of said first sloped surface, wherein said first end is fixedly attached to said disposable manifold, further wherein said first sloped surface has a first height at said first end and a second height at said first bend, wherein said second height of said first sloped surface is greater than said first height of said first sloped surface relative to said disposable manifold, further wherein said first height of said first sloped surface is substantially equal to the height of said disposable manifold;
• a convex exterior surface continuing and protruding outward from said first bend of said first sloped surface, said convex exterior surface continuing from said first bend to a second bend, wherein a distance between the first bend and second bend defines a length and height of said convex surface, wherein the height of the convex surface at the first bend and the second bend is the same as the second height of the first sloped surface, wherein the height of said convex exterior surface increases from said first bend to a second height of said convex surface relative to the second height of said first sloped surface, and wherein the height of said convex exterior surface decreases from said second height of said convex surface to the second bend;
• and,
• a second sloped surface, continuing from said second bend to a second end, wherein a distance between the second bend and second end defines a length of said second sloped surface, wherein said second end is fixedly attached to said disposable manifold, further wherein said second sloped surface has a first height at said second bend and a second height at said second end, wherein said first height of said second sloped surface is greater than said second height of said second sloped surface relative to said disposable manifold, further wherein said second height of said second sloped surface is substantially equal to said first height of said first sloped surface, said first height of said second sloped surface is substantially equal to said second height of said first sloped surface, and said length of said second sloped surface is substantially equal to said length of said first sloped surface.