Sample disk supporting internal-external ring bar code scan

Abstract

The present invention discloses a sample disc which supports internal-external ring bar code scanning. The sample disc comprises a circular tray and one circuit of inner reagent bottle seat and one circuit of outer test-tube clamp seat which are arranged along the circumference of the tray. The inner reagent bottle seat and the outer test-tube clamp seat are staggered. An inner optical path groove is formed between adjacent outer test-tube clamps. Each outer test-tube clamp seat is equally provided with a base and four paws extending upwards from the upper surface of the base with a cantilever shape. Fore paws are in a same circumference and are arranged with a rectangle shape. A front notch, a back notch and two side notches are formed among four paws. Besides, the width of the side notch is larger than the widths of front notch and back notch. As the width of side notch is larger than the widths of front notch and back notch, when the pitch of the outer test-tube clamp set is definite, the width of inner optical path groove which is provided for the passing-through of the inner bar code scanning ray is facilitated to obtain a maximum effective value, namely the pitch of the adjacent outer test-tube clamp seat is minimized at the state that the width of the inner optical path groove is definite.

Description

technical field [0001] The invention relates to a sample tray capable of supporting barcode scanning of inner and outer rings. Background technique [0002] In the automatic biochemical analyzer, the sample tray is used to carry various test tubes containing samples or reagent bottles containing reagents, and performs intermittent rotating motions according to a certain program, and sends the sample test tubes or reagent bottles to extract samples or reagents. position for the sampling needle to extract samples or reagents. During the rotation of the sample disk, the program controls the light of the barcode scanner to accurately read the outer ring sample and the inner ring reagent or sample information at a certain incident angle. [0003] see figure 1 , the existing sample tray has a tray 7 and a test tube clamp 8 and a test tube holder 9 for clamping and positioning the outer ring test tube 5 . Since the test tube clamp 8 and the test tube holder 9 are two independent...

AI Technical Summary

Problems solved by technology

The sample tray has the following disadvantages: 1) Since the four claws are evenly distributed in the circumferential direction relative to the center of rotation, the optical path of the inner ring scanning light cannot reach the maximum effective width, and does not support the scanning of barcodes on the inner and outer rings with small pitches; The cross-sectional size is large, and the effective optical path cannot reach the widest; 3) The structure is only positioned through a positioning column, so the circumferential positioning of the structure relative to its center of rotation is not accurate, resulting in a large angular error in the optical path of the inner and outer rings

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