Abstract: Objective To eliminate the interference of man-made ingredient in making peripheral blood smears, and improve the quality stability and standardization of blood smears and promote high vocational college students to better study and grasp cellular morphology. Methods A new type of semiautomatic blood slide maker was designed and manufactured. When conducting the preparation and staining of a blood smear, every blood smear made by student majoring in medical laboratory technology and health inspection and quarantine technology respectively by hand and by slide maker is evaluated by experts and teachers according to the criteria of a good blood smear, and the results were analyzed statistically. In addition, the times for blood collection and its preparation, staining and microscopic examination were recorded, and the advantages and disadvantages of the 3 groups of slide making by hand, by hand allied with by slide maker and just by slide maker were compared. Results The percentage of qualified blood smears made by slide maker was much higher than that by hand in the medical laboratory technology speciality (P<0.01), whichwas the same as that in the health inspection and quarantine technology speciality (P<0.01). The percentage of qualified blood smears made by hand in these 2 specialities did not take on remarkable change (P>0.05). Besides, making blood smears by hand allied with by slide maker can not only enable all students to practise slide making, but also helped the students who had difficulty in getting a qualified blood smear, which increased their time to observe microscope and further enhanced teaching effectiveness. Conclusions The use effect of the semiautomatic blood slide maker designed and manufactured by our research group is satisfactory, which can be used as an assistant teaching equipment in the teaching of our school.

Key words: Blood smear, Semiautomatic blood slide maker, Teaching, Use, Effect