微量注射是现代生物科学研究常用方法之一。常需在较长时间内缓慢而均匀地注入仅以微升计的极小注射量,因此必须讲求推进方法。目前国内除个别单位采用国外引进的价格昂贵的仪器外,一般用手旋转千分尺推进,也有的改装电钟或自制电动推进器推进。前者既费力而又不匀不准,后者需特别改装或制造,同时在调节上也存在一些缺陷。为了解决这一 Microinjection is one of the most commonly used methods in modern biological research. It is often necessary to slowly and evenly inject a very small injection volume of only a few microliters over a long period of time, and therefore, the propulsion method must be emphasized. At present, in addition to the introduction of expensive units by foreign units, the general use of hand rotating micrometer to promote, but also some modified electric clock or home-made electric propulsion. The former is laborious and uneven, the latter need special modification or manufacturing, while there are also some shortcomings in the regulation. In order to solve this one