2 results about "Avian embryo" patented technology

To provide a method for culturing avian embryos outside the eggshell that can reliably achieve high embryo survival rates and low embryonic developmental abnormality rates, and that is relatively easy to perform, as well as a method for evaluating the toxicity of test substances using such a culture method. [Solution] The embryo and yolk are removed from the fertilized bird egg and transferred together with avian aqueous oocyte white into a roughly cylindrical well in a culture vessel. The opening of the well, which is filled with avian aqueous oocyte white, is then covered with a porous membrane, and the avian embryo is cultured by turning it over. Preferably, the cultured avian embryo is further cultured in a roughly cylindrical well in which a porous membrane is provided along the inner circumference, and the amount of avian aqueous oocyte white is adjusted so that there is a space between the well and the avian yolk below the opening.

The application discloses an avian embryo blood vessel injection device, which comprises a rack, a visual illumination module, an injection execution mechanism and an avian embryo egg fixing platform. The fixing platform comprises a supporting table and a plurality of self-adaptive clamping units. The clamping unit comprises a support which is in sliding cooperation with a sliding groove of the supporting table, a first driving mechanism which drives the support to move, a flexible constraint member which is arranged on the support, a second driving mechanism which adjusts the tension degree of the flexible constraint member, and a force sensing unit which detects the clamping pressure. The injection execution mechanism comprises a base, a multi-joint motion mechanism, a driving assembly and an end effector. The fixing platform and the injection execution mechanism are integrated, and the multi-joint motion mechanism is arranged in the injection execution mechanism. The stable support of the avian egg and the space adjustment of the injection path are realized. The angle-adjustable fine puncture of the avian embryo blood vessel can be realized in the fixed state. The positioning stability and the operation repeatability in the injection process are improved. The automation degree and the precision of the blood vessel injection are improved.