Patent ID: 6284195
Filing Date: 2001-09-04
Classification: G01N

Abstract:
A disposable reaction module, comprising:a body having a reaction chamber for containing a reaction agent, the reaction chamber having a reaction chamber bottom, at least one test agent room for containing a test agent, the test agent room having a test agent room bottom inclined toward the reaction chamber and at least one gate room, said at least one gate room having a passage communicating with the reaction chamber and the at least one test agent room, the reaction chamber bottom being lower than the test agent bottom for enabling test agent to flow from said test agent room to said reaction chamber;a cover, located on a top of said body, the cover having a check valve opening, at least one piston opening and at least one test agent inlet;a check valve having a reaction agent inlet and an elastic arm, wherein said elastic arm is provided below said reaction agent inlet and comprises a passive one-way valve for allowing unidirectional flow of said reaction agent into said reaction chamber; and,a piston provided in each of the at least one gate room, the piston having a barrel on said piston and engaging said piston movably within said gate room, the piston and barrel having a through piston passage and movable between a closed position which closes the gate room passage, and an open position which opens the gate room passage to enable test agent to enter said reaction chamber, the piston further comprising a holding stub, provided on two opposite sides thereof, and formed integrally with said piston and located so as to rest on said cover, and an O-ring on said piston and engaging said piston and said body.