4results about How to "Guaranteed experimental accuracy" patented technology

The utility model relates to a colon cancer metastasis microfluidic dynamic simulation device suitable for experiment teaching, which comprises microfluidic driving equipment, a dynamic simulation module and a teaching imaging system, the dynamic simulation module comprises an invasion layer, an intestinal tract simulation layer and a blood vessel metastasis layer from top to bottom, the invasion layer is used for placing freeze-drying dyeing marked colon cancer cells, and the intestinal tract simulation layer is used for placing the blood vessel metastasis layer. The bottom of the invasion layer is composed of a capillary simulation plate for simulating capillaries, the bottom of the intestinal tract simulation layer is composed of a common blood vessel simulation plate for simulating common blood vessels, and the microfluidic driving device is connected with the input end in the blood vessel transfer layer and simulates blood flow. The teaching imaging system comprises an excitation light source for exciting the dyeing marks, a long working distance objective lens for observing the dynamic simulation module and a microscopic camera for shooting the dynamic simulation module. By adopting the scheme, the utility model provides the colon cancer metastasis micro-fluidic dynamic simulation device suitable for experiment teaching, which can observe the metastasis process in real time, has low operation complexity and is suitable for experiment teaching, so that the teaching effect is improved.

The utility model discloses a kind of fiber drawing experimental device based on press, including push assembly, fixed component and test piece;The fixed component is composed of support cylinder, fixed cylinder and support disc;The support cylinder is equipped with groove and fixed cylinder and is assembled;The fixed cylinder below is equipped with connecting protrusion and support cylinder and is assembled, inner wall is equipped with support groove and lifts support disc;The support disc is equipped with guide rail groove, test piece groove and fiber hole 1;The push assembly is composed of pressure disc, guide rail column, fixed disc, fixed ball and nut;The lower end of guide rail column is equipped with bolt;The fixed disc is equipped with bolt hole and fiber hole 2;The fixed ball is equipped with fiber hole 3;The test piece is composed of fiber and matrix;The fiber passes through fiber hole 1, fiber hole 2 and fiber hole 3, knot is fixed;The utility model discloses a kind of device capable of measuring the bonding relationship between fiber and matrix by press, solve the pain point that cannot be tested due to tensile test equipment shortage, have certain application prospect.

The application discloses an automatic pipetting workstation, and belongs to the technical field of pipetting equipment. The automatic pipetting workstation comprises a plurality of single pipetting modules arranged side by side, wherein the single pipetting module comprises a suction head module, a raw material platform, a linear conveying module, a suction head collecting module, a moving and positioning module and a pipetting module; and the pipetting module comprises a nozzle. The pipetting workstation is a high-throughput liquid preparation modular assembly line. The assembly line is modular in design. Each module has a plurality of liquid adding stations. The pipetting workstation is equipped with an equal number of pipetting modules. The pipetting workstation can add a plurality of different solutions. The centrifuge tubes are intermittently advanced by the linear conveying module and are advanced to the next working module one by one until all kinds of solutions are added. Compared with the traditional pipetting workstation, the pipetting workstation adopts a "modular + assembly line" form and can work simultaneously. The problem of low efficiency caused by repeated movement of the traditional pipetting workstation is solved.