Smear device

The utility model relates to the technical field of medical detection, in particular to a smear device which comprises a holding rod, a connecting rod is fixedly connected to the holding rod, a side plate is fixedly connected to one end of the connecting rod, a rotating roller is rotatably connected to the side plate through a bearing, cotton cloth is connected to the rotating roller through a detachable mechanism, and the cotton cloth is fixedly connected to the connecting rod. And the cotton cloth is wound on the rotating roller. According to the utility model, the residue of a sample is prevented, the influence on the next result is avoided, and compared with a cotton swab, the repeated use is facilitated. 本实用新型涉及医学检测技术领域，尤其是一种涂片器，包括把握杆，所述把握杆上固定连接有连接杆，所述连接杆一端固定连接有侧板，所述侧板上通过轴承可转动连接有转动辊，所述转动辊上通过可拆卸机构连接有棉布，所述棉布卷绕在所述转动辊上。本实用新型具有防止了样本的残留，避免了对下次的结果造成影响，相比与棉签有利于重复的使用。