Cell scratching pen

The utility model discloses a cell scratching pen, which relates to the technical field of cell scratching devices and comprises a scratching pen body, a cross-shaped laser emitting device is fixed on the scratching pen body, and one side of cross-shaped laser emitted by the cross-shaped laser emitting device is projected on the scratching pen body. According to the utility model, the laser rays emitted by the cross-shaped laser emitting device are aligned with the scratches, so that the accuracy of the subsequent scratches can be judged and ensured. 本实用新型公开了一种细胞划痕笔，涉及细胞划痕装置技术领域，包括划痕笔笔体，划痕笔笔体上固定有一个十字激光发射装置，十字激光发射装置发出的十字激光的其中一边投影在划痕笔笔体上。本实用新型利用十字激光发射装置发出的激光射线对准已经划过的划痕，以此能够判断以及保证接下来划痕的准确度。