Patent ID: 8012770

Claim:
A device for detecting an antigen comprising: a housing comprising a first housing member and a second housing member, wherein said housing comprises: an inlet opening in the second housing member; a force member attached to the first housing member; a slidable locking member contacting the first housing member and contacting the force member; an antigen detection membrane system comprising in the following order: a conjugate pad; a permeable membrane; a test membrane; and an absorbent member; and a flexible attachment member attached to the locking member and the conjugate pad; wherein at least a portion of each of the conjugate pad, permeable membrane, test membrane, and absorbent member are substantially parallel to each other; wherein the conjugate pad is capable of being compressed against the perimeter of the inlet opening in the second housing member; and wherein the force member contacts the absorbent member and is capable of applying pressure substantially perpendicular to the antigen detection membrane system.