Pipette-washing device for automatic biochemical analyzer

摘要

There is disclosed a pipette-washing device for use with an automatic biochemical analyzer. The pipette-washing device includes a wash fluid-ejecting block for ejecting a wash fluid toward a pipette, a wash fluid supply means for supplying the wash fluid to the block, and a valve for controlling the supply of the wash fluid from the supply means to the block. This block is located under a passage through which the pipette moves. The body of the block is provided with a vertical wash fluid channel. The channel extends to the top surface of the body and faces the front end of the pipette. The channel is connected with the wash water supply means at the bottom of the block. An upwardly spreading groove is formed in the top surface of the body of the block and extends along the trajectory of the front end of the pipette. The groove is connected at its lower end with the vertical wash fluid channel. A lateral draining channel is formed in the body of the block and connected with the lower end of the vertical wash fluid channel. When the pipette moves, the front end of the pipette moves through the groove. The block is inclined at an angle to the vertical within a plane in which the groove extends. IMAGE