Patent ID: 6926058

Claim:
A sample pretreatment system equipped with a pipetting apparatus for pipetting a sample to containers, a label sticking apparatus for sticking a label to each container, and a container conveying apparatus for conveying the containers, wherein the label sticking apparatus comprises: a container holding device for holding the container with an elastic holding force, the holding device being adapted to open and close; a raising/lowering mechanism for raising and lowering the container holding device along a raising/lowering path, the raising/lowering mechanism positioning the container holding device at a container receiving position which is set at an upper position when receiving the container, positioning the container holding device at a label sticking position by lowering the container holding device after receiving the container, and then raising the container holding device upwardly from the label sticking position after the label has been stuck on the container; an opening/closing control mechanism for mechanically controlling opening and closing operations of the container holding device so that the container holding device is in a completely opened state at the receiving position and so that the container holding device carries out the closing operation according to the lowering motion of the container holding device from the receiving position to hold the container; a label sticking apparatus for sticking a label onto the container held by the container holding device at the sticking position; and a transfer mechanism for receiving the container to which the label has been stuck from the container holding device which is raised after sticking the label and then conveying the container to which the label is stuck horizontally to position the labeled container at a buffer position; and wherein said container conveying apparatus is constructed so that the container conveying apparatus carries out feeding conveyance of a container before label sticking from the pipetting apparatus to the container holding device positioned at the receiving position in an outward conveyance and carries out returning conveyance of the container to which the label has been stuck and which is positioned at the buffer position to the pipetting apparatus in a returned conveyance.