Patent ID: 7048893

Claim:
A mask for depositing and distributing reagents on an analytical support for biological samples, the mask comprising: a body having a lower surface and an upper surface that are at least partially parallel and separated by a first distance constituting the thickness of the body; at least one lane located on the lower surface of the body including a wedge-shaped projecting element, the projecting element having a first end and a second end, the first end disposed at a second distance from or coextensive with the lower surface of the body, and the second end disposed a third distance from the lower surface of the body, the third distance being greater than the second distance thereby forming a sloped surface between the first and second ends of the projecting element; an opening associated with the at least one lane extending from the upper surface of the body to the sloped surface of the projecting element, the opening including an upper orifice on the upper surface of the body and a lower orifice on the sloped surface located in the proximity of the second end of the projecting element, wherein the lower orifice is located at the lowest point of the second end of the projecting element.