Sample smear coating dryness detection method, device, sample smear drying device

Abstract

The application provides a method and device for detecting the dryness of a sample smear coating, which uses light to irradiate the sample coating coverage area on the sample smear during the drying process, and generates an effective optical signal based on the optical signal detected in real time Intensity of the effective photoelectric signal, and then by analyzing the effective optical signal after the blood film to determine whether the coating is dry. The application can independently detect the drying condition of each sample smear, which not only avoids the time waste caused by the longest sample smear drying time, but also ensures the drying quality of each sample smear. In order to realize the above method, the present application also discloses a sample smear drying device. For the sample smear in the drying process, the method of irradiating the sample coating on the sample smear with light is used to judge whether the blood film has dried.

Description

technical field [0001] The present application relates to the field of medical devices, in particular to a method and device for detecting the drying degree of a sample smear coating, and a sample smear drying device. Background technique [0002] The process of preparing a blood smear by an automatic pusher includes steps such as dripping blood, pushing the slide, drying, and staining. After the blood sample to be analyzed is dropped on the blood smear and pushed into a thin blood film, the blood smear needs to be placed in a drying box, and the drying unit will dry and dehydrate the blood film of the blood smear with hot air, and wait for the blood film to completely dry. After drying, it can be taken out and put into the dyeing box for dyeing. If the blood film is immersed in the dye solution before it is completely dried, problems such as deformation, shedding, and uneven staining of the blood film will occur, resulting in the failure of the preparation of the blood sme...

AI Technical Summary

Problems solved by technology

Since the degree of dryness of the blood film of the blood smear is unknown, in order to prevent the blood film from being put into the dye solution without drying, in the prior art, the drying unit is usually used to dry the blood smear in the drying box. It is carried out at a preset time, which is not conducive to the drying process in the process of preparing blood smears: on the one hand, due to the difference in the thickness of the blood film of blood smears, some blood smears need a longer drying time Some of them are relatively short, and it is usually necessary to preset the drying time according to the longest drying time based on experience, which will inevitably waste a long time for blood smears that only need a short drying time. On the other hand, even if the longest blood smear drying time is preset, it is inevitable that individual blood smears will not be able to reach the preset drying time due to uneven pushing. Still not completely dry

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