Patent ID: 8436988

Claim:
A clinical laboratory testing apparatus, comprising: a microchip having a measuring cell that holds a sample liquid; a rotation body; a rotation drive mechanism that rotates the rotation body; a lock mechanism that locks the microchip on the rotation body; a measurement room that holds the microchip and the rotation body and that has an attachment and detachment opening; a protection cover that closes the attachment and detachment opening; a light source that irradiates the measuring cell; a light receiving unit that receives the light; and a hook that is formed to project in a centrifugal direction of the rotation body in the wall face of the opening, wherein a centrifugal separation processing of a specimen in the sample liquid is performed in the microchip by the rotation drive mechanism rotating the rotation body, wherein the protection cover has a pressing-down member that presses down a wall face of the microchip when the protection cover is closing the attachment and detachment opening, wherein the microchip has an opening extending perpendicularly to the rotation body, wherein the lock mechanism has an engaging portion that engages with the hook, and wherein the engaging portion is inserted in the opening of the microchip so that the engaging portion is engaged with the hook when the microchip is pressed down by the pressing-down member.