| abstract |
The invention provides an apparatus for the microinjection of samples into amphibiannoocytes, comprising a tray (9) for holding a plurality of amphibian oocytesn(13), an injection needle (6) for injecting a sample into the amphibian oocytesn(13), driving means (4, 11, 12) for moving the relative position between thentray (9) and the injection needle (6) and controlling means (1, 2) for controllingnthe movement by setting the depth of the injection needle (6) relative to the trayn(9) or the amphibian oocytes (13) in the sample injection and for injecting thensample into the amphibian oocytes (13) at that depth. n According to the present invention, the sample can be injected into amphibiannoocytes (13) with constant depth precisely, and the quality of oocytes or the positionalnsite of needle injection can be recorded as product information. |