Pushing piece machine, sample adding mechanism and method, and computer readable storage medium

Abstract

A sample adding mechanism (100) applied to a pusher (300), in the process of driving a blood dropper (10) to move relative to a slide (200) by a transmission device (20), whether the blood dropper (10) is in contact with the slide (200) is detected by a detection device (30). Then, the control device (40) controls the blood dropper (10) to perform blood dripping operation on the slide (200). The contact action of the blood dropper (10) with the slide (200) can more accurately position the blood dropper (10), facilitating the control of the relative position between the blood dropper (10) and the slide (200) in the subsequent blood dripping process. Compared with the prior art of accurately controlling the blood dropper (10) to move to a preset height, the sample adding mechanism (100) has lower accuracy requirements for the control device (40). Also related are a pusher (300) comprising the above-mentioned sample adding mechanism (100), a sample adding method of the pusher (300), and a computer readable storage medium (400).

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of medical detection, in particular to a sample adding mechanism applied to a slide pushing machine, a sample adding method of the slide pushing machine, a slide pushing machine comprising the sample adding mechanism and a computer readable storage medium. BACKGROUND

[0002] The current slide pushing machine generally adopts non-contact blood dripping to load the blood sample onto the slide. The blood dripping needle for dripping blood is lowered to a preset height, forms a certain gap with the slide and starts dripping blood. The gap serves as a blood flow channel for the blood sample to flow through and be loaded onto the slide. Especially for some embodiments in which the blood dripping needle needs to be further moved relative to the slide and keep spitting blood, the non-contact blood dripping method can form a blood line on the slide, which facilitates the subsequent slide pushing process to spread the blood sample to form a blood film.

[0003] The non-contact blood dripping scheme has high positioning accuracy requirements for the blood dripping needle. If the gap between the blood dripping needle and the slide is too large, it is easy to cause blood sample splashing or loading position deviation; if the gap between the blood dripping needle and the slide is too small, it is easy to cause part of the blood sample to be retained on the blood dripping needle and be taken away. At the same time, the thickness difference of the slide for carrying the blood sample is usually large, and these factors increase the positioning difficulty of the blood dripping needle, so that the structure of the blood dripping needle is relatively complex and the manufacturing cost is increased. SUMMARY

[0004] Therefore, the present application provides a sample adding mechanism to reduce the control accuracy requirements of the blood dripping needle positioning. The present application also relates to a slide pushing machine comprising the sample adding mechanism, a sample adding method of the slide pushing machine and a computer readable storage medium to solve the above technical problems.

[0005] In a first aspect, the present application provides a sample adding mechanism applied to a slide pushing machine, comprising a blood dripping needle, a transmission device, a detection device and a control device, the blood dripping needle is connected with the transmission device, the transmission device is used to drive the blood dripping needle to move relative to the slide, the detection device is communicatively connected with the transmission device, the detection device is used to detect whether the blood dripping needle is in contact with the slide,

[0006] When the detection device detects that the blood dripping needle is in contact with the slide, the control device controls the transmission device to stop the movement of the blood dripping needle towards the slide, and controls the blood dripping needle to load the blood sample onto the slide.

[0007] Wherein, the detection device is a pressure detection device, the detection device judges whether the blood dripping needle is in contact with the slide by detecting the pressure change of the blood dripping needle or the slide.

[0008] The pressure detection device comprises an elastic connecting device and a sensing device, the elastic connecting device is connected between the connecting end of the blood dripping needle and the transmission device, or the elastic connecting device is connected between the slide and the base bearing the slide, and the sensing device is used for sensing the elastic deformation of the elastic connecting device.

[0009] The elastic connecting device is connected between the blood dripping needle and the transmission device, the connecting position of the connecting end of the blood dripping needle and the elastic connecting device is a first connecting position, the connecting position of the transmission device and the elastic connecting device is a second connecting position, the sensing device is arranged at one of the first connecting position and the second connecting position, and a trigger piece for triggering the sensing device is arranged at the other of the first connecting position and the second connecting position.

[0010] The sensing device is an optical coupling sensor, and the trigger piece is a baffle for shielding the detection end of the sensing device.

[0011] The elastic connecting device is a spring, the transmission device is provided with a first fixed column, the first fixed column is sleeved in one end of the spring, and the connecting end of the blood dripping needle is provided with a second fixed column, the second fixed column is sleeved in the other end of the spring.

[0012] The first fixed column and the second fixed column are sleeved with each other.

[0013] The transmission device comprises a driving device, a transmission belt and a connecting piece, the driving device is used for driving the transmission belt, and the connecting piece is connected between the transmission belt and the connecting end of the blood dripping needle.

[0014] When the detection device detects that the blood dripping needle contacts the slide, the control device controls the transmission device to stop the movement of the blood dripping needle towards the slide, and the blood dripping needle performs a blood dripping operation.

[0015] Alternatively, when the detection device detects that the blood dripping needle contacts the slide, the control device controls the transmission device to drive the blood dripping needle to move a predetermined distance away from the slide, and then performs a blood dripping operation.

[0016] The blood dripping needle comprises a blood dripping end opposite to the connecting end in a first direction, the blood dripping end is provided with a notch extending in a second direction, the notch passes through at least one side outer wall of the blood dripping end from the geometric center of the blood dripping end, and the second direction is perpendicular to the first direction.

[0017] The notch penetrates the blood dripping end in the second direction.

[0018] In a cross section perpendicular to the second direction, the hollowed-out region is in the shape of a rectangle, a trapezoid, or a circular arc.

[0019] The control device further controls the transmission device to drive the blood droplet lance to move along the second direction and perform a blood droplet operation.

[0020] In a second aspect, the present application relates to a slide pusher, comprising:

[0021] A slide loading mechanism for moving a slide into the slide pusher;

[0022] The sample loading mechanism described above for loading a blood sample onto the slide;

[0023] A slide pushing mechanism for flattening the blood sample on the slide to form a blood film;

[0024] A drying mechanism for drying the blood film on the slide;

[0025] A staining mechanism for staining the slide.

[0026] In a third aspect, the present application relates to a sample loading method for a slide pusher, comprising the following steps:

[0027] Driving the blood droplet lance to move towards the slide;

[0028] Detecting the position of the blood droplet lance relative to the slide, and when it is detected that the blood droplet lance is in contact with the slide, the blood droplet lance stops moving towards the slide;

[0029] Loading a blood sample onto the slide by the blood droplet lance.

[0030] The detection of the position of the blood droplet lance relative to the slide comprises:

[0031] Detecting the pressure value of the blood droplet lance or the slide to determine whether the blood droplet lance is in contact with the slide.

[0032] After the blood droplet lance is in contact with the slide, and before the blood sample is loaded onto the slide by the blood droplet lance, the method further comprises:

[0033] The blood droplet lance moves a predetermined distance away from the slide.

[0034] The driving of the blood droplet lance to move towards the slide comprises:

[0035] Driving the blood droplet lance to move towards the slide along a first direction;

[0036] The loading of the blood sample onto the slide by the blood droplet lance comprises:

[0037] loading the blood sample on the slide by the blood dropper, the method further comprising:

[0038] wherein before driving the blood dropper to move towards the slide, the method further comprises:

[0039] driving the blood dropper to move to a blood dropping position after sampling, the blood dropping position being a starting position before driving the blood dropper to move towards the slide, or

[0040] driving the blood dropper to deliver the blood sample to the blood dropper at the blood dropping position after sampling.

[0041] wherein after loading the blood sample on the slide by the blood dropper, the method further comprises:

[0042] driving the blood dropper to reset and clean, and driving the slide to move to a slide pushing position to push the slide.

[0043] In a fourth aspect, the present application relates to a computer readable storage medium storing executable instructions configured to cause a processor to execute the executable instructions to implement the slide pushing machine sample loading method described above.

[0044] In the first aspect of the present application, for the sample loading mechanism applied to the slide pushing machine, the detection device is used to detect whether the blood dropper contacts the slide during the process of driving the blood dropper to move relative to the slide by the transmission device. After detecting that the blood dropper contacts the slide, the control device controls the blood dropper to drip blood on the slide to load the blood sample on the slide. The contact action of the blood dropper and the slide can more accurately position the blood dropper, which facilitates the control of the relative position between the blood dropper and the slide in the subsequent blood dripping process. Compared with the prior art scheme of accurately controlling the blood dropper to move to a preset height, the sample loading mechanism of the present application has lower control accuracy requirements and can adapt to slides of different thicknesses to ensure the relative position accuracy between the blood dropper and the slide.

[0045] In the slide pushing machine, the slide pushing machine sample loading method, and the computer readable storage medium of the second to fourth aspects of the present application, the blood dropper is also controlled to drip blood after detecting that the blood dropper contacts the slide. Similar to the beneficial effects of the first aspect of the present application, the contact of the blood dropper and the slide can more accurately position the blood dropper, which facilitates the control of the relative position between the blood dropper and the slide in the subsequent blood dripping process. BRIEF DESCRIPTION OF DRAWINGS

[0046] In order to make the technical solutions in the embodiments of the present application or the prior art clearer, the accompanying drawings needed in the embodiments or prior art description will be briefly introduced. Obviously, the accompanying drawings in the following description only aim to explain some embodiments of the present application, and for those skilled in the art, other drawings can be obtained without creative effort based on these drawings.

[0047] Figure 1 is a schematic diagram of a frame of the sample adding mechanism of the present application;

[0048] Figure 2 is a schematic diagram of the sample adding mechanism of the present application;

[0049] Figure 3 is a schematic diagram of a cross section of the blood dripping needle in the sample adding mechanism of the present application;

[0050] Figure 4 is a schematic diagram of a detection device in the sample adding mechanism of the present application;

[0051] Figure 5 is a schematic diagram of a frame of a transmission device in the sample adding mechanism of the present application;

[0052] Figure 6 is a schematic diagram of a cross section of another embodiment of the blood dripping needle in the sample adding mechanism of the present application;

[0053] Figure 7 is a schematic diagram of the blood dripping needle in the sample adding mechanism of the present application;

[0054] Figure 8 is a schematic diagram of the sample adding mechanism of the present application;

[0055] Figure 9 is a schematic diagram of another view of the sample adding mechanism of the present application;

[0056] Figure 10 is a flow chart of the sample adding method of the sample adding mechanism of the present application;

[0057] Figure 11 is a flow chart of another embodiment of the sample adding method of the sample adding mechanism of the present application;

[0058] Figure 12 is a flow chart of another embodiment of the sample adding method of the sample adding mechanism of the present application;

[0059] Figure 13 is a flow chart of another embodiment of the sample adding method of the sample adding mechanism of the present application;

[0060] Figure 14 is a flow chart of another embodiment of the sample adding method of the sample adding mechanism of the present application;

[0061] Figure 15 is a schematic diagram of the computer readable storage medium of the present application. DETAILED DESCRIPTION

[0062] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art without creative work fall within the protection scope of the present application.

[0063] The serial numbers of components in the present application, such as "first", "second", etc., are only used to distinguish the described objects, and do not have any sequence or technical meaning. The "connection" and "coupling" in the present application include direct and indirect connection (coupling) unless otherwise specified. In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0064] In the present application, unless otherwise explicitly specified and limited, the first feature is "on" or "under" the second feature, which can be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature "above", "over" and "on" the second feature can be that the first feature is directly above or obliquely above the second feature, or only means that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "under" and "under" the second feature can be that the first feature is directly below or obliquely below the second feature, or only means that the horizontal height of the first feature is less than that of the second feature.

[0065] Please refer to Figure 1The application is applied to a sample loading mechanism 100 of a slide pusher, which is used to load a blood sample on a slide 200. In some embodiments, the sample loading mechanism 100 can also be used to extract a blood sample from a sample container. The sample loading mechanism 100 comprises a blood dropper 10, a transmission device 20, a detection device 30 and a control device 40. The blood dropper 10 is used to output a blood sample at a preset position in the slide pusher towards the slide 200. The preset position can also be interpreted as a preset position of the blood dropper 10 relative to the slide 200. The transmission device 20 is movable inside the slide pusher, and the transmission device 20 is fixedly connected with the blood dropper 10. The transmission device 20 is used to drive the blood dropper 10 to move to the preset position relative to the slide 200. The detection device 30 is used to detect whether the transmission device 20 reaches the preset position during the driving of the blood dropper 10 to move relative to the slide 200. In the embodiments of the present application, the detection device 30 detects whether the blood dropper 10 moves to the preset position relative to the slide 200 by detecting whether the blood dropper 10 contacts the slide 200. It should be pointed out that the preset position of the blood dropper 10 relative to the slide 200 for blood dropping can be a position where the blood dropper 10 contacts the slide 200, or a position where the blood dropper 10 is moved reversely relative to the slide 200 by the transmission device 20 after the blood dropper 10 contacts the slide 200.

[0066] The detection device 30 is in communication connection with the control device 40. When the detection device 30 detects that the blood dropper 10 contacts the slide 200, the detection device 30 sends a detection signal to the control device 40. The control device 40 controls the blood dropper 10 to perform a blood dropping operation. It can be understood that the control device 40 can also be used to control the transmission device 20 to drive the blood dropper 10 to move relative to the slide 200. The movement action includes the transmission device 20 driving the blood dropper 10 to move towards the slide 200 to contact the slide 200, and can also include the transmission device 20 driving the blood dropper 10 to move reversely relative to the slide 200 after the blood dropper 10 contacts the slide 200.

[0067] Specifically, please refer to Figure 2Before the driving device 20 drives the blood droplet needle 10 to move towards the slide 200, the blood droplet needle 10 is at an initial position inside the pusher. The initial position of the blood droplet needle 10 is defined as a blood droplet position 01. The blood droplet needle 10 at the blood droplet position 01 is arranged along a first direction 001 with the slide 200. The control device 40 controls the driving device 20 to drive the blood droplet needle 10 to move from the blood droplet position 01 along the first direction 001 towards the slide 200. Generally, the first direction 001 is a vertical direction, i.e. the blood droplet needle 10 is located directly above the slide 200 when at the blood droplet position 01. In other embodiments, the blood droplet needle 10 at the blood droplet position 01 can be located obliquely above the slide 200 due to differences in the internal structure of the pusher. The detection device 30 detects whether contact occurs between the blood droplet needle 10 and the slide 200 during movement of the blood droplet needle 10 driven by the driving device 20 along the first direction 001. Once contact is detected, the detection device 30 sends a detection signal to the control device 40, and the control device 40 controls the driving device 20 to stop driving the blood droplet needle 10 to move towards the slide 200.

[0068] In the sample loading mechanism 100 of the present application, detection of the contact action between the blood droplet needle 10 and the slide 200 can be used to more accurately control the relative position between the blood droplet needle 10 and the slide 200 during loading of the blood sample. The specific operation of the control device 40 for loading the blood sample from the blood droplet needle 10 onto the slide 200 is not particularly limited in the sample loading mechanism 100 of the present application. Generally, in order to load the blood sample in the blood droplet needle 10 onto the slide 200, a blood flow channel needs to be left between the blood droplet needle 10 and the slide 200, through which the blood sample is loaded from the blood droplet needle 10 onto the slide 200. In the sample loading mechanism 100 of the present application, the blood flow channel can be provided as a gap between the blood droplet needle 10 and the slide 200, or as a notch in the blood droplet needle 10 itself.

[0069] It can be understood that when the blood flow channel is a gap between the blood droplet needle 10 and the slide 200, the operation of the sample loading mechanism 100 in the actual sample loading process is similar to the blood droplet sample loading operation in the prior art, i.e. the blood droplet needle 10 is in a suspended state relative to the slide 200, and the blood droplet needle 10 performs blood droplet in a non-contact manner towards the slide 200. The blood droplet needle 10 is located directly above the slide 200, and a gap is formed between them in the vertical direction, and the blood sample output by the blood droplet needle 10 falls onto the slide 200 under the action of gravity.

[0070] Another embodiment will be described below with reference to Figure 3, the blood flow channel is a gap 11 provided in the blood lancet 10, and the blood sample output from the blood lancet 10 is loaded onto the slide 200 through the gap 11. Specifically, the blood lancet 10 includes opposite connecting end 101 and blood dripping end 102 in the first direction 001. The connecting end 101 is connected with the transmission device 20, and the blood dripping end 102 of the blood lancet 10 is used to contact the slide 200 and output the blood sample towards the slide 200. The blood lancet 10 is a hollow structure, and the blood sample is output from the blood dripping end 102 after being sent from the connecting end 101 to the blood dripping end 102. The gap 11 extends from the geometric center of the blood dripping end 102 along the second direction 002 and at least passes through one side wall 1021 of the blood dripping end 102. The second direction 002 is perpendicular to the first direction 001, and the blood sample can flow to the slide 200 through the gap 11 when flowing from the connecting end 101 to the blood dripping end 102, so as to be loaded onto the slide 200.

[0071] It can be understood that the first direction 001 is usually a vertical direction, and the second direction 002 is usually a horizontal direction perpendicular to the vertical direction, that is, the gap 11 passes through at least one side wall 1021 of the blood dripping end 102 along the horizontal direction. The provision of the gap 11 enables the blood lancet 10 to maintain contact with the slide 200 during the blood dripping process, and the blood sample is loaded onto the slide 200 from the hollow blood lancet 10 through the gap 11. It should be pointed out that, Figure 3 In the embodiment, the blood lancet 10 can maintain contact with the slide 200 during the blood dripping process, the gap 11 serves as the main channel for the blood sample to flow from the blood lancet 10 to the slide 200, and the contact type blood dripping operation is realized; or the blood lancet 10 can form a gap with the slide 200 in the vertical direction during the blood dripping process, the gap 11 is used to assist the smooth flow of the blood sample, and the non-contact type blood dripping operation is realized.

[0072] For the embodiment in which the blood flow channel is the gap between the blood droplet needle 10 and the slide 200, the control device 40 can control the transmission device 20 to drive the blood droplet needle 10 to move reversely relative to the slide 200 by a predetermined distance after receiving the detection signal sent by the detection device 30, and then form a gap with the slide 200 before starting the blood droplet operation. It can be understood that, compared with the prior art in which the blood droplet needle 10 is directly controlled to drop to a preset height for blood droplet operation, the sample adding mechanism 100 can eliminate the gap height difference caused by the uneven thickness of the slide 200 through the actual contact action of the blood droplet needle 10 and the slide 200, and ensure the gap precision of the blood droplet needle 10 and the slide 200. And the predetermined distance of the reverse movement of the blood droplet needle 10 after the actual contact with the slide 200 is much smaller than the movement distance of the blood droplet needle 10 from the blood droplet position 01 to the preset height, so the control precision requirement of the control device 40 is correspondingly reduced. Compared with the prior control method of accurately controlling the blood droplet needle to drop to a preset height, the control device 40 of the sample adding mechanism 100 can appropriately reduce the control precision of the control device 40 without losing the actual gap precision, thereby saving costs.

[0073] For the embodiment in which the blood flow channel is the gap 11, the control device 40 can directly control the blood droplet needle 10 to perform blood droplet operation after detecting the contact between the blood droplet needle 10 and the slide 200 by the detection device 30, without the need to adjust the relative height between the blood droplet needle 10 and the slide 200. The contact type blood droplet operation can also eliminate the system error of the sample adding mechanism 100 caused by the uneven thickness of the slide 200, and the contact type blood droplet operation also eliminates the step of moving the blood droplet needle 10 relative to the slide 200 to form a gap, so that the influence of the error caused by this link is not considered, and the system precision of the sample adding mechanism 100 is further improved.

[0074] Therefore, the control method of the sample adding mechanism 100 in which the blood droplet needle 10 and the slide 200 are contacted by the detection device 30 and then the blood droplet operation is performed can improve the control precision of the sample adding mechanism 100, and adapt to the thickness difference between different slides 200. Therefore, the sample adding mechanism 100 can ensure the accuracy of the blood sample loading action under the condition of relatively low control precision requirement, thereby saving the manufacturing cost.

[0075] There are many ways to detect the contact action of the blood dripping needle 10 and the slide 200 in the prior art, such as using a distance sensor or a proximity sensor for detection, etc. In an embodiment, the detection device 30 uses a pressure detection device 31 for detection. The pressure detection device 31 detects the change of the pressure value between the blood dripping needle 10 or the slide 200 to determine whether the blood dripping needle 10 and the slide 200 have contacted. That is, after the blood dripping needle 10 moves to contact the slide 200, the mutual extrusion between the blood dripping needle 10 and the slide 200 causes the pressure detection device 31 to detect the pressure change of the blood dripping needle 10 or the slide 200 to detect that the blood dripping needle 10 and the slide 200 have contacted.

[0076] In an embodiment, in order to avoid the damage of the blood dripping needle 10 or the slide 200 caused by the excessive pressure between the blood dripping needle 10 and the slide 200, the pressure detection device 31 further includes an elastic connecting device 311. The elastic connecting device 311 is arranged between the connecting end 101 of the blood dripping needle 10 and the transmission device 20, or the elastic connecting device 311 is arranged between the slide 200 and the base 201 supporting the slide 200. That is, after the transmission device 20 drives the blood dripping needle 10 to move towards the slide 200 and contact, the blood dripping needle 10 or the slide 200 can extrude the elastic connecting device 311 under the pressure generated by the contact, and the elastic connecting device 311 reduces the pressure between the blood dripping needle 10 and the slide 200 by its elastic deformation, thereby avoiding the damage of the blood dripping needle 10 or the slide 200. It can be understood that the elastic deformation direction of the elastic connecting device 311 is along the first direction 001.

[0077] Correspondingly, the pressure detection device 31 further includes a sensing device 312 capable of triggering when the elastic connecting device 311 is elastically deformed. And the sensing device 312 and the elastic connecting device 311 are synchronously arranged on one side of the blood dripping needle 10 or on one side of the slide 200. The sensing device 312 senses the displacement of the blood dripping needle 10 relative to the transmission device 20 or the displacement of the slide 200 relative to the base 201 to detect the contact between the blood dripping needle 10 and the slide 200.

[0078] Please refer to Figure 3 and Figure 4In an embodiment, the elastic connecting device 311 is connected between the blood dripping needle 10 and the transmission device 20. The connecting position of the connecting end 101 of the blood dripping needle 10 and the elastic connecting device 311 is the first connecting position, and the connecting position of the transmission device 20 and the elastic connecting device 311 is the second connecting position. One of the first connecting position or the second connecting position is provided with the sensing device 312, and the other of the first connecting position or the second connecting position is provided with the trigger 313 which triggers the sensing device 312. After the transmission device 20 drives the blood dripping needle 10 to contact the slide 200, the blood dripping needle 10 compresses the elastic connecting device 311 under the pressure, so that the trigger 313 and the sensing device 312 are close to each other, and then the trigger 313 triggers the sensing device 312 to form a detection signal. After the detection signal is transmitted to the control device 40, the control device 40 controls the transmission device 20 to stop the blood dripping needle 10 from continuing to move towards the slide 200.

[0079] In an embodiment, the sensing device 312 is provided at the first connecting position, i.e., the sensing device 312 is fixed to the blood dripping needle 10. The sensing device 312 is implemented by a photoelectric sensor, and the trigger 313 is implemented by a baffle which can block the detection end of the sensing device 312. The baffle is provided at the second connecting position, i.e., the baffle is fixedly connected to the transmission device 20. Figure 4

[0080] In an embodiment, the elastic connecting device 311 is a spring. The spring is arranged between the blood dripping needle 10 and the transmission device 20 along the first direction 001. The position where the transmission device 20 is connected with the connecting end 101 is provided with the first fixed column 21 which is sleeved in one end of the spring, and the connecting end 101 of the blood dripping needle 10 is provided with the second fixed column 12 which is sleeved in the other end of the spring. The two ends of the elastic connecting device 311 which is a spring are respectively sleeved in the fixed columns, so that the structural stability of the elastic connecting device 311 can be improved.

[0081] Further, the first fixed column 21 can also be sleeved with the second fixed column 12. As shown in Figure 4 the first fixed column 21 is sleeved outside the second fixed column 12, and the inner wall of the first fixed column 21 and the outer wall of the second fixed column 12 are matched with each other, so that the relative positions among the blood dripping needle 10, the elastic connecting device 311 and the transmission device 20 can be further limited, and the structural stability of the sample adding mechanism 100 can be further improved.

[0082] The embodiments are described in detail in the following Figure 5 ​The transmission device 20 comprises a driving device 22, a transmission belt 23 and a connecting piece 24. The transmission belt 23 is connected between the driving device 22 and the connecting piece 24, the connecting piece 24 is connected with the connecting end 101 of the blood dripping needle 10, and the driving device 22 controls the movement of the blood dripping needle 10 relative to the slide 200 by driving the movement of the transmission belt 23.

[0083] Please refer to Figure 6 It is mentioned in the foregoing that the notch 11 of the blood dripping needle 10 penetrates through one side outer wall 1021 of the blood dripping end 102 from the geometric center of the blood dripping end 102 along the second direction 002. In Figure 6 In the embodiment, the notch 11 penetrates through the blood dripping end 102 along the second direction 002 completely, so that the opposite side outer walls 1021 of the blood dripping end 102 along the second direction 002 are both formed as blood flow channels, forming a slot. The embodiment that the notch 11 penetrates through the blood dripping end 102 completely can further expand the flow area of the blood flow channel, and can ensure that the blood sample is loaded more smoothly from the blood dripping end 102 to the slide 200 in the process of contact or non-contact blood dripping of the blood dripping needle 10.

[0084] The cross-sectional shape of the notch 11 can be seen from Figure 7 In the schematic diagram, Figure 7 In the cross section perpendicular to the second direction 002, the cross-sectional shape of the notch 11 at the blood dripping end 102 can be rectangular, trapezoidal or circular arc. When the notch 11 is trapezoidal, the long side of the two parallel sides of the trapezoid is located at the end of the blood dripping end 102. When the notch 11 is circular arc, the arc length of the circular arc is not more than the arc length of a semicircle. The above settings can ensure that the width dimension of the cross-sectional shape of the notch 11 is larger when it is closer to the end of the blood dripping end 102 in the first direction 001, so as to facilitate the blood sample to be loaded more smoothly from the blood dripping end 102 to the slide 200.

[0085] It can be understood that in some embodiments, the notch 11 can be two or more, and the multiple notches 11 can be parallel to each other and penetrate through the blood dripping end 102 along the second direction 002 to facilitate blood dripping. The multiple notches 11 can also be in a circumferential array relative to the geometric center of the blood dripping end 102. For example, two penetrating notches 11 form an "X-shaped slot" or a "cross-shaped slot" at the blood dripping end 102, etc. The above manners can increase the blood flow channel area of the blood dripping end 102 and facilitate the blood dripping end 102 to load the blood sample more smoothly to the slide 200. On the other hand, in order to prevent the blood dripping end 102 of the blood dripping needle 10, especially the sharp corners formed by the notch 11 on the blood dripping end 102, from scratching the outer surface of the slide 200, the blood dripping end 102 can also be smoothed.

[0086] For the blood sample shape loaded on the slide 200 by the blood dropper 10, one embodiment, the control device 40 controls the blood dropper 10 to drop blood on the slide 200 to form a blood droplet, which will be spread to form a blood film during the subsequent spreading process. Another embodiment, the control device 40 can also control the transmission device 20 to drive the blood dropper 10 to move along the horizontal direction while dropping blood to form a blood line on the slide 200, which will be spread to form a blood film during the subsequent spreading process.

[0087] For the latter blood loading mode, the blood dropping operation can also be completed by the control device 40 controlling the transmission device 20 to drive the blood dropper 10 to move along the second direction 002. The blood line formed thereby also extends along the second direction 002. Since the second direction 002 is the horizontal direction, for the blood dropper 10 using the contact blood dropping mode, i.e. the blood dropper end 102 keeps in contact with the slide 200 during the blood dropping process, since the notch 11 of the blood dropper end 102 also penetrates at least one side wall 1021 along the second direction 002, the blood sample can be continuously loaded from the notch 11 to the slide 200 along the second direction 002, and the blood line already loaded on the slide 200 will not be scraped off the slide 200 due to the contact between the blood dropper end 102 and the slide 200.

[0088] Please refer to Figure 8 and Figure 9 The present application also relates to a spreading machine 300. The spreading machine 300 comprises a slide loading mechanism 301, the above-mentioned blood loading mechanism 100, a spreading mechanism 302, a drying mechanism 303 and a staining mechanism 304. The slide loading mechanism 301 is used to load the slide 200 into the spreading machine 300, so that the subsequent mechanisms can sequentially perform blood loading, spreading, drying and staining on the slide 200. The blood loading mechanism 100 is used to load blood sample on the slide 200. The spreading mechanism 302 is used to spread the blood sample on the slide 200 to form a blood film. The drying mechanism 303 is used to dry the blood film on the slide 200. The staining mechanism 304 is used to stain the slide 200.

[0089] The sample loading mechanism 100 can be used to load the blood sample onto the slide 200, and can also be used to extract the blood sample. In one embodiment, the slide pusher 300 can further include a sampling mechanism 305 that is used for sampling. When the sample loading mechanism 100 or the sampling mechanism 305 is used to extract the blood sample, the blood sample is first mixed, and then the blood sample is extracted by using the blood dropper 10 or a sampling device in the sampling mechanism 305, such as a sampling needle (not shown in the figure). Depending on the blood sample container, the blood sample can be extracted by puncturing (the blood sample container has a cover, and the blood dropper 10 or the sampling needle punctures the cover of the sample container), or can be extracted by open sampling (the sample container is open, and the blood dropper 10 or the sampling needle directly extracts the blood sample from the opening). If necessary, the blood sample information can be detected to obtain information and compare the information. It can be understood that in the embodiment in which the sampling mechanism 305 is used, the sampling mechanism 305 transports the blood sample to the blood dropper 10 through a sample transport channel in the slide pusher 300 after the blood sample is extracted, so that the blood dropper 10 loads the blood sample onto the slide 200.

[0090] In some embodiments, after the slide loading mechanism 301 completes the operation of extracting the slide 200, the slide 200 can be subjected to left-right detection and cleaning of the slide 200, and then the slide 200 is loaded onto the working line of the slide pusher 10. After the loading, the slide 200 can be printed with relevant information, and the slide 200 can be subjected to front-back detection and other operations. After the blood dropper 10 of the sample loading mechanism 100 loads the blood sample onto the slide 200, the slide pusher 10 is operated to push the blood sample on the slide 200 into a blood film shape by the slide pushing mechanism 302. Generally, after the slide pushing operation is completed, the blood film on the slide 200 can be dried by using the drying mechanism 303 to stabilize the shape of the blood film. In some embodiments, the slide 200 can be flipped before the blood film is dried to meet the corresponding requirements. In some embodiments, the slide 200 after drying can be subjected to drying detection to determine the drying effect of the blood film. In some embodiments, the slide 200 after drying can be subjected to blood film unfolding detection to determine whether the blood film is unfolded and whether the unfolded state meets the requirements, and then the slide 200 is subjected to staining (which can be achieved by using the staining mechanism 304) or is directly output (for example, placed into the slide basket 306 for output).

[0091] It can be understood that because the slide pusher 300 includes the sample loading mechanism 100, the control accuracy of the blood dropper 10 during the sample loading process is correspondingly reduced, and the operation accuracy during the sample loading can also be ensured, and the slide 200 loaded with the blood film that meets the detection requirements can be manufactured. It can be understood that when the slide pusher 300 also uses the sample loading mechanism 100 to extract the sample, the contact cooperation between the blood dropper 10 and the sample container can be detected by using the detection device 20 to accurately control the position accuracy of the blood dropper 10 during the sampling process, and to reduce the system error of the slide pusher 300.

[0092] Please refer to Figure 10The application relates to a sample loading method of a slide pushing machine.

[0093] S101, driving the blood dripping needle 10 to move towards the slide 200;

[0094] S102, detecting the position of the blood dripping needle 10 relative to the slide 200, and stopping the movement of the blood dripping needle 10 when the blood dripping needle 10 is detected to be in contact with the slide 200;

[0095] S103, loading the blood sample on the slide 200 through the blood dripping needle 10.

[0096] Specifically, the principle of the sample loading mechanism 100 is similar. The sample loading method of the slide pushing machine drives the blood dripping needle 10 at the initial blood dripping position 01 to move towards the slide 200, and synchronously detects the relative position of the blood dripping needle 10 and the slide 200. After the blood dripping needle 10 is detected to be in contact with the slide 200, the movement of the blood dripping needle 10 is stopped. At this time, the relative position between the blood dripping needle 10 and the slide 200 is not disturbed by the uneven thickness of the slide 200, and the movement distance of the blood dripping needle 10 does not need to be positioned with high precision, and the contact action of the two can eliminate the error disturbance. After the blood dripping needle 10 is detected to be in contact with the slide 200, the contact type or non-contact type blood dripping operation is performed, which can improve the positioning precision of the blood dripping needle 10 relative to the slide 200, and ensure that the blood sample is smoothly loaded on the slide 200.

[0097] The movement action of the blood dripping needle 10 towards the slide 200 and the movement stopping action of the blood dripping needle 10 can be realized by the control device 40 in the sample loading mechanism 100 cooperating with the transmission device 20.

[0098] An embodiment is shown in the following table: Figure 11 In step S20, the position of the blood dripping needle 10 relative to the slide 200 is detected, including:

[0099] S102a, judging whether the blood dripping needle 10 is in contact with the slide 200 by detecting the pressure value of the blood dripping needle 10 or the slide 200.

[0100] Specifically, the pressure value of the blood dripping needle 10 and the slide 200 can be detected by, for example, a pressure sensor and the like, and it is judged whether the two are in contact. The pressure detection device 31 in the sample loading mechanism 100 is one of the embodiments, which detects whether the contact action occurs between the blood dripping needle 10 and the slide 200 by detecting the displacement of the blood dripping needle 10 or the slide 200.

[0101] An embodiment is shown in the following table: Figure 12 After the blood dripping needle 10 is in contact with the slide 200 and before the blood dripping needle 10 loads the blood sample on the slide 200, the method further includes:

[0102] S102b, the blood droplet needle 10 moves a predetermined distance away from the slide 200.

[0103] Specifically, when the sample adding mechanism 100 adopts the non-contact blood droplet operation, after detecting the contact between the blood droplet needle 10 and the slide 200, the blood droplet needle 10 needs to be reversely moved by a predetermined distance, so that a predetermined gap is formed between the blood droplet end 102 of the blood droplet needle 10 and the slide 200, and the blood sample loading operation is started. It can be understood that because the gap requirement is relatively small, the predetermined distance of the reverse movement of the blood droplet needle 10 is also relatively small. The accuracy control of the smaller stroke is easier to implement than the accuracy control of the larger stroke of driving the blood droplet needle 10 to move from the blood droplet position 01 to the slide 200, thereby reducing the accuracy requirement of the control device 40 and saving costs.

[0104] One embodiment please see Figure 13 , the step S101 of driving the blood droplet needle 10 to move towards the slide 200 includes:

[0105] S101c, driving the blood droplet needle 10 to move along the first direction 001 towards the slide 200;

[0106] Then, the step S103 of loading the blood sample on the slide 200 by the blood droplet needle 10 includes:

[0107] S103c, continuously loading the blood sample on the slide 200 by the blood droplet needle 10 along the second direction 002 to form a continuous blood sample line on the slide 200, and the second direction 002 is perpendicular to the first direction 001.

[0108] Specifically, in this embodiment, the blood droplet needle 10 moves along the second direction 002 during the blood droplet process to continuously load the blood sample on the slide 200 to form a blood sample line. The continuous blood sample line helps to spread the blood film in the subsequent slide pushing process. At the same time, for the sample adding method of the slide pushing machine of the present application, it does not limit whether the blood droplet needle 10 is in contact with the slide 200 during the movement along the second direction 002. Because the blood droplet end 102 can be provided with the notch 11, even if the contact type blood droplet is adopted, the sample adding method of the slide pushing machine of the present application can also continuously load the blood sample on the slide 200.

[0109] One embodiment please see Figure 14 , before the step S101 of driving the blood droplet needle 10 to move towards the slide 200, the method further includes:

[0110] S100, after the blood droplet needle 10 is driven to sample, the blood droplet needle 10 is moved to the blood droplet position 01, and the blood droplet position 01 is the starting position before the blood droplet needle 10 moves towards the slide 200, or

[0111] After the blood droplet needle 3051 is driven to sample, the blood sample is transported to the blood droplet needle 10 located at the blood droplet position 01.

[0112] Specifically, corresponding to the sampling operation of the pusher 300. The pusher 300 can directly drive the blood dripping needle 10 to sample, and after the blood dripping needle 10 completes the sampling, move to the blood dripping position 01, and then move towards the slide 200 and contact the slide 200 to drip blood. Meanwhile, the pusher 300 can also include a sampling needle dedicated to sampling. After driving the sampling needle to sample, the blood sample is transported to the blood dripping needle 10 at the blood dripping position 01 through the sample transport channel inside the pusher 300, and the blood sample is loaded onto the slide 200 through the blood dripping needle 10.

[0113] It can be understood that the operation of transporting the blood sample to the blood dripping needle 10 by the sampling needle can also be synchronized with the movement of the blood dripping needle 10 from the blood dripping position 01 towards the slide 200, that is, the blood dripping needle 10 transports the blood sample to the blood dripping needle 10 synchronously during the movement towards the slide 200, and the blood dripping needle 10 loads the transported blood sample onto the slide 200 after contacting the slide 200. Such cooperation can shorten the total time of the sample loading operation of the pusher 300 and improve the working efficiency of the pusher 300.

[0114] An embodiment will be described below Figure 14 After the blood sample is loaded onto the slide 200 by the blood dripping needle 10 at step 103, the method of the application further includes:

[0115] S104, drive the blood dripping needle 10 to reset and clean, and drive the slide 200 to move to the pusher position to push the slide.

[0116] Specifically, after the sample loading mechanism 100 of the pusher 300 completes a blood sample loading operation, the blood dripping needle 10 needs to be controlled to reset, and the blood dripping needle 10 is cleaned after or during the resetting. The blood dripping needle 10 returns to the blood dripping position 01 to wait for the next blood dripping or sampling operation. At the same time, the pusher 300 also needs to send the slide 200 loaded with the blood sample to the next process for pusher processing to spread the blood sample on the slide 200 to form a blood film. It can be understood that the operation of driving the blood dripping needle 10 to return to the blood dripping position 01 can also be performed simultaneously with the operation of driving the slide 200 to move to the pusher, so as to improve the working efficiency of the pusher 300.

[0117] An embodiment will be described below Figure 15 The application relates to a computer readable storage medium 400. The computer readable storage medium 400 includes a processor 401 and a storage device 402. The storage device 402 stores executable instructions configured to cause the processor 401 to execute the executable instructions to implement the pusher sample loading method described above.

[0118] In one embodiment, the processor 401 invokes program instructions stored in the storage 402 to perform the following operations:

[0119] The blood droplet needle 10 is driven to move towards the slide 200;

[0120] The position of the blood droplet needle 10 relative to the slide 200 is detected, and the blood droplet needle 10 stops moving towards the slide 200 when it is detected that the blood droplet needle 10 contacts the slide 200;

[0121] The blood sample is loaded onto the slide 200 by the blood droplet needle 10.

[0122] The storage 402 can include volatile memory, such as random-access memory (RAM); the storage 402 can also include non-volatile memory, such as flash memory, a solid-state drive (SSD), etc.; the storage 402 can also include a combination of the above-mentioned types of storage.

[0123] The processor 401 can be a central processing unit (CPU). The processor 401 can also be other general-purpose processors, digital signal processors (DSPs), application-specific integrated circuits (ASICs), field-programmable gate arrays (FPGAs) or other programmable logic devices, discrete gates or transistor logic, discrete hardware components, etc. The general-purpose processor can be a microprocessor or the processor can also be any conventional processor.

[0124] In one embodiment, the processor 401 invokes program instructions stored in the storage 402 to perform the above-mentioned sample loading method by the slide pusher, and determines that the blood droplet needle 10 contacts the slide 200 by detecting a pressure value received by the blood droplet needle 10 or the slide 200.

[0125] In one embodiment, the processor 401 invokes program instructions stored in the storage 402 to perform the above-mentioned sample loading method by the slide pusher, and controls the blood droplet needle 10 to move a predetermined distance away from the slide 200 after the blood droplet needle 10 contacts the slide 200 and before the blood droplet needle 10 loads the blood sample onto the slide 200.

[0126] An embodiment, when the processor 401 invokes the program instructions stored in the storage device 402 to execute the above-mentioned push slide method, drives the blood droplet needle 10 to move towards the slide 200, and drives the blood droplet needle 10 to move towards the slide 200 in the first direction 001.

[0127] Then, when the blood sample is loaded on the slide 200 by the blood droplet needle 10, the blood sample is continuously loaded on the slide 200 by the blood droplet needle 10 in the second direction 002 to form a continuous blood sample line on the slide 200, and the second direction 002 is perpendicular to the first direction 001.

[0128] An embodiment, when the processor 401 invokes the program instructions stored in the storage device 402 to execute the above-mentioned push slide method, drives the blood droplet needle 10 to move towards the slide 200, and drives the blood droplet needle 10 to move towards the slide 200 in the first direction 001.

[0129] An embodiment, when the processor 401 invokes the program instructions stored in the storage device 402 to execute the above-mentioned push slide method, drives the blood droplet needle 10 to move towards the slide 200, and drives the blood droplet needle 10 to move towards the slide 200 in the first direction 001.

[0130] It should be noted that, Figure 8 and Figure 9 the push slide machine 300 in the above-mentioned push slide method, Figure 10- Figure 14 the push slide method in the above-mentioned computer readable storage medium 400, and Figure 15 the development of each embodiment in the above-mentioned computer readable storage medium 400 can be realized by referring to the explanation of the corresponding embodiments in the above-mentioned sample loading mechanism 100.

[0131] The above-mentioned embodiments do not constitute a limitation on the protection scope of the technical solutions. Any modifications, equivalent replacements, and improvements made within the spirit and principles of the above-mentioned embodiments shall be included in the protection scope of the technical solutions.

Claims

1. A sample feeding mechanism applied to a tablet pusher, characterized in that, The device includes a blood-dispensing needle, a transmission device, and a control device. The blood-dispensing needle is connected to the transmission device, which drives the blood-dispensing needle to move relative to a glass slide. The control device controls the transmission device to drive the blood-dispensing needle to move toward the glass slide until contact, and controls the blood-dispensing needle to load a blood sample onto the glass slide. The blood-dispensing needle includes a connecting end and a blood-dispensing end opposite each other along a first direction. The connecting end is connected to the transmission device. The blood-dispensing end is used to contact the glass slide and to output a blood sample toward the glass slide. The blood-dispensing end is flat and has a notch extending along a second direction. The notch passes through at least one sidewall of the blood-dispensing end from its geometric center. The second direction is perpendicular to the first direction. The blood-dispensing needle has a hollow structure inside. When the blood sample is delivered from the connecting end through the hollow structure to the blood-dispensing end, it is loaded onto the glass slide through the notch.

2. The sample dispensing mechanism according to claim 1, characterized in that, The width of the notch is approximately equal to the inner diameter of the blood-dropping needle; or, the width of the notch is greater than the inner diameter of the blood-dropping needle.

3. The sample dispensing mechanism according to claim 2, characterized in that, The sample application mechanism also includes a detection device, which is communicatively connected to the transmission device. The detection device is used to detect whether the blood-dropping needle is in contact with the glass slide. The control device is used to control the blood-dropping needle to load the blood sample onto the glass slide when the detection device detects that the blood-dropping needle is in contact with the glass slide.

4. The sample dispensing mechanism according to claim 3, characterized in that, The detection device is a pressure detection device, which determines that the blood-dropping needle is in contact with the glass slide by detecting the pressure change on the blood-dropping needle or the glass slide.

5. The sample dispensing mechanism according to claim 4, characterized in that, The pressure detection device includes an elastic connection device and a sensing device. The elastic connection device is connected between the connecting end of the blood-dropping needle and the transmission device, or the elastic connection device is connected between the glass slide and the base supporting the glass slide. The sensing device is used to sense the elastic deformation of the elastic connection device.

6. The sample dispensing mechanism according to claim 5, characterized in that, The elastic connecting device is connected between the blood-dropping needle and the transmission device. The connection position between the connecting end of the blood-dropping needle and the elastic connecting device is the first connection position, and the connection position between the transmission device and the elastic connecting device is the second connection position. The sensing device is set at one of the first connection position or the second connection position. A trigger element for triggering the sensing device is also set at the other connection position between the first connection position and the second connection position.

7. The sample dispensing mechanism according to claim 6, characterized in that, The sensing device is an optical coupler sensor, and the trigger is a baffle used to block the detection end of the sensing device.

8. The sample dispensing mechanism according to claim 5, characterized in that, The elastic connecting device is a spring, and the transmission device is provided with a first fixing post, which is sleeved inside one end of the spring; the connecting end of the blood-dropping needle is provided with a second fixing post, which is sleeved inside the other end of the spring.

9. The sample dispensing mechanism according to claim 8, characterized in that, The first fixed post and the second fixed post are nested together.

10. The sample dispensing mechanism according to claim 5, characterized in that, The transmission device includes a drive unit, a transmission belt, and a connector. The drive unit is used to drive the transmission belt, and the connector is connected between the transmission belt and the connecting end of the blood-dropping needle.

11. The sample dispensing mechanism according to any one of claims 1-10, characterized in that, When the detection device detects that the blood-dropping needle is in contact with the glass slide, the control device controls the transmission device to stop the movement of the blood-dropping needle toward the glass slide, and the blood-dropping needle performs the blood-dropping operation; Alternatively, when the detection device detects that the blood-dropping needle is in contact with the glass slide, the control device controls the transmission device to drive the blood-dropping needle to move a predetermined distance away from the glass slide before performing the blood-dropping operation.

12. The sample dispensing mechanism according to claim 1, characterized in that, The notch extends through the dripping end along the second direction.

13. The sample dispensing mechanism according to claim 11, characterized in that, On a cross section perpendicular to the second direction, the hollowed-out area is rectangular, trapezoidal, or arc-shaped.

14. The sample dispensing mechanism according to claim 1, characterized in that, The control device also controls the transmission device to drive the blood-dropping needle to move along the second direction and perform the blood-dropping operation.

15. A pusher, characterized in that, include: A slide loading mechanism for moving slides into the slide pusher; The sample loading mechanism as described in any one of claims 1-14 is used to load a blood sample onto a glass slide; The slide-pushing mechanism is used to smooth the blood sample on the glass slide to form a blood film. A drying mechanism for drying the blood film on a glass slide; A staining apparatus used to stain glass slides.

16. A sample feeding method for a slide pusher, characterized in that, Includes the following steps: The blood-dropping needle is driven to move toward the glass slide until contact is reached; the blood-dropping needle includes a connecting end and a blood-dropping end opposite to each other along a first direction, the connecting end is connected to a transmission device, the blood-dropping end is set to be flat and used to form a surface contact with the glass slide, the blood-dropping end is used to output blood sample toward the glass slide, wherein the blood-dropping end has a notch extending along a second direction, the notch passes through at least one side wall of the blood-dropping end from the geometric center of the blood-dropping end, the second direction is perpendicular to the first direction, and the blood-dropping needle has a hollow structure inside; When the blood sample is delivered from the connecting end through the hollow structure to the blood-dropping end via the blood-dropping needle, it is loaded onto the glass slide through the notch.

17. The sample feeding method of the pusher according to claim 16, characterized in that, The process of driving the blood-dropping needle toward the glass slide to make contact includes: Drive the blood-dropping needle toward the glass slide; The position of the blood-dropping needle relative to the glass slide is detected. When the blood-dropping needle is detected to be in contact with the glass slide, the blood-dropping needle stops moving toward the glass slide.

18. The sample feeding method of the pusher according to claim 17, characterized in that, Detecting the position of the blood-dropping needle relative to the glass slide includes: The contact between the blood-dropping needle and the glass slide is determined by detecting the pressure value exerted on the blood-dropping needle or the glass slide.

19. The sample feeding method of the pusher according to claim 17, characterized in that, After the blood-dropping needle contacts the glass slide, and before the blood-dropping needle loads the blood sample onto the glass slide, the procedure further includes: The blood-dropping needle is moved a predetermined distance away from the glass slide.

20. The sample feeding method of the pusher according to claim 17, characterized in that, The process of moving the blood-dropping needle toward the slide includes: Drive the blood-dropping needle to move toward the glass slide along the first direction; Loading a blood sample onto the glass slide using the blood-dropping needle includes: The blood sample is continuously applied to the glass slide along a second direction using the blood-dropping needle to form a continuous blood sample line on the glass slide, wherein the second direction is perpendicular to the first direction.

21. The sample feeding method for a pusher according to claim 17, characterized in that, Before driving the blood-dropping needle toward the slide, the following steps are also included: After the blood-dropping needle is driven to take a sample, it moves to the blood-dropping position, which is the starting position before the blood-dropping needle moves towards the slide, or After the blood collection needle is driven to collect the sample, the blood sample is delivered to the blood drop needle located at the blood drop position.

22. The sample feeding method for a pusher according to claim 20, characterized in that, After the blood sample is loaded onto the glass slide using the blood-dropping needle, the process further includes: The blood-dropping needle is driven to reset and cleaned, and the glass slide is driven to move to the slide-pushing position for slide pushing.

23. A computer-readable storage medium, characterized in that, The device stores executable instructions and is configured to cause a processor to execute the executable instructions to implement the sample feeding method of any one of claims 16-22.

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