Tablet pusher and method for preventing liquid dripping from tablet pusher

Abstract

The present application provides a film pusher and a method for preventing the film pusher from dripping. The film pusher includes a sampling mechanism, a sample adding mechanism, a power source, a valve, and a control mechanism. The sampling mechanism is used to absorb the sample, the sample adding mechanism is used to load the sample, and the sampling mechanism and the sample adding mechanism are connected through a pipeline. The power source is used to drive the cleaning liquid in the pipeline to clean the sampling mechanism and the sample adding mechanism. The valve is set corresponding to the pipeline, and the valve is used to control the connection and blocking of the pipeline. The control mechanism is configured to: instruct the sampling mechanism to absorb the sample, the sample is transported to the sample adding mechanism through the pipeline, instruct the sample adding mechanism to load the sample, control the power source to drive the cleaning liquid to clean the sampling mechanism and the sample adding mechanism, control the power source to suck out the cleaning liquid in the pipeline or control the power source to drive the cleaning liquid so that there is no height difference between the liquid levels of the cleaning liquid at both ends of the pipeline. The film pusher of the present application can prevent the cleaning liquid from dripping.

Description

Technical Field

[0001] The present application relates to the field of biochemical testing technology, and in particular to a film pusher and a method for preventing liquid dripping from the film pusher. Background Art

[0002] In traditional slide pushers or integrated staining and slide pushers, two different needles are used for puncture sampling and blood dripping. The sampling mechanism and the sample dispenser are connected by a pipeline (e.g., a hose). Valves are required to control the flow of the pipeline. Due to the complex internal flow path of the solenoid valve, the blood sample is easily diluted by the cleaning fluid in the dead corners after passing through the solenoid valve, making it difficult to clean the blood sample inside the solenoid valve. Therefore, the valve through which the blood sample passes uses a pinch valve (also known as a pressure-break valve or air pressure valve). The pinch valve uses air pressure to control the movement of a piston to close the pipeline, and a spring to control the piston to release the pipeline. When the slide pusher enters sleep mode or is shut down, the air supply is shut off, the pressure in the pinch valve is released, and the pipeline is released, leaving the pipeline between the sampling and sample dispenser mechanisms connected. This will cause the cleaning fluid in the pipeline between the sampling and sample dispenser mechanisms to drip out. Summary of the Invention

[0003] The present application provides a film pusher, comprising:

[0004] a sampling mechanism for sucking samples, and a sample adding mechanism for loading samples, wherein the sampling mechanism and the sample adding mechanism are connected via a pipeline;

[0005] a power source for driving the cleaning fluid in the pipeline to clean the sampling mechanism and the sample adding mechanism;

[0006] A valve, the valve being provided corresponding to the pipeline and being used to control the connection and blocking of the pipeline; and

[0007] A control mechanism is configured to: instruct the sampling mechanism to absorb a sample, the sample is transported to the sample adding mechanism through the pipeline, instruct the sample adding mechanism to load the sample, control the power source to drive the cleaning liquid to clean the sampling mechanism and the sample adding mechanism, control the power source to suck out the cleaning liquid in the pipeline, or control the power source to drive the cleaning liquid so that there is no height difference between the liquid levels of the cleaning liquid at both ends of the pipeline.

[0008] The present application also provides a method for preventing liquid dripping from a tablet pusher, the tablet pusher comprising a sampling mechanism, a sample adding mechanism, a pipeline connecting the sampling mechanism and the sample adding mechanism, a power source connected to the pipeline, a valve corresponding to the pipeline, and an air source connected to the valve, wherein the method comprises:

[0009] A power source drives a cleaning liquid to clean the sampling mechanism and the sample adding mechanism;

[0010] The power source sucks out the cleaning liquid in the pipeline between the sampling mechanism and the sample adding mechanism, or the power source drives the cleaning liquid so that there is no height difference between the liquid levels of the cleaning liquid at both ends of the pipeline.

[0011] After the cleaning fluid cleans the sampling mechanism and the sample loading mechanism, the control mechanism in the tablet pusher of the present application controls the power source to drain the cleaning fluid from the pipeline or controls the power source to drive the cleaning fluid so that there is no height difference between the two ends of the cleaning fluid in the pipeline. In other words, there is no height difference between the liquid level where the pipeline connects to the sampling mechanism and the liquid level where the pipeline connects to the sample loading mechanism, thereby preventing the cleaning fluid in the pipeline from flowing out. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following is a brief introduction to the drawings required for use in the implementation. Obviously, the drawings described below are some implementation methods of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0013] Figure 1 This is a block diagram of a film pusher provided in one embodiment of the present application.

[0014] Figure 2 This is a schematic diagram of a pinch valve in an open state according to one embodiment of the present application.

[0015] Figure 3 for Figure 2 Schematic diagram of the pinch valve in the blocked state shown in FIG.

[0016] Figure 4 This is a block diagram of a film pusher provided in another embodiment of the present application.

[0017] Figure 5 This is a partial structural diagram of a film pusher in one embodiment of the present application.

[0018] Figure 6 This is a partial structural diagram of a film pusher in another embodiment of the present application.

[0019] Figure 7 This is a flow chart of a method for preventing liquid dripping from a tablet pusher provided in one embodiment of the present application.

[0020] Figure 8 for Figure 7 A specific flow chart of S200 provided in an embodiment of the present invention.

[0021] Figure 9 for Figure 7 A specific flow chart of S200 is provided in another embodiment.

[0022] Figure 10 for Figure 7 A specific flow chart of S200 is provided in another embodiment.

[0023] Figure 11 This is a flow chart of a method for preventing liquid dripping from a tablet pusher provided in another embodiment of the present application.

[0024] Figure 12 This is a flow chart of a method for preventing liquid dripping from a tablet pusher provided in yet another embodiment of the present application.

[0025] Figure 13 This is a flow chart of a method for preventing liquid dripping from a tablet pusher provided in another embodiment of the present application. DETAILED DESCRIPTION

[0026] The present invention will be further described in detail below by means of specific embodiments in conjunction with the accompanying drawings. Similar elements in different embodiments are numbered with associated similar elements. In the following embodiments, many detailed descriptions are provided to enable the present application to be better understood. However, those skilled in the art will readily appreciate that some of the features may be omitted in different circumstances, or may be replaced by other elements, materials, or methods. In some cases, some operations related to the present application are not shown or described in the specification. This is to avoid the core portion of the present application being overwhelmed by excessive descriptions, and for those skilled in the art, it is not necessary to describe these related operations in detail. They will fully understand the related operations based on the description in the specification and the general technical knowledge in the art.

[0027] In addition, the features, operations, or characteristics described in the specification may be combined in any appropriate manner to form various embodiments. Furthermore, the steps or actions in the method description may be reordered or adjusted in a manner readily apparent to those skilled in the art. Therefore, the various sequences in the specification and drawings are provided solely for the purpose of clearly describing a particular embodiment and are not intended to be mandatory, unless otherwise specified.

[0028] Component numbers used herein, such as "first" and "second," are used solely to distinguish the components being described and do not convey any sequential or technical meaning. References to "connection" and "coupling" herein, unless otherwise specified, include both direct and indirect connections (couplings).

[0029] See also Figure 1 , Figure 1This is a block diagram of a film pusher provided in one embodiment of the present application. The film pusher includes a sampling mechanism 110, a sample loading mechanism 120, a pipeline 130, a power source 140, a valve 150, and a control mechanism 160. The sampling mechanism 110 is used to draw a sample. The sample loading mechanism 120 is used to load a sample. The sampling mechanism 110 is connected to the sample loading mechanism 120 via the pipeline 130. The power source 140 is used to drive the cleaning fluid in the pipeline 130 to clean the sampling mechanism 110 and the sample loading mechanism 120. The valve 150 is provided corresponding to the pipeline 130, and the valve 150 is used to control the connection and blocking of the pipeline 130. The control mechanism 160 is configured to: instruct the sampling mechanism 110 to absorb a sample, the sample is transported to the sample loading mechanism 120 through the pipeline 130, instruct the sample loading mechanism 120 to load the sample, control the power source 140 to drive the cleaning liquid to clean the sampling mechanism 110 and the sample loading mechanism 120, control the power source 140 to suck out the cleaning liquid in the pipeline 130, or control the power source 140 to drive the cleaning liquid so that there is no height difference between the liquid levels of the cleaning liquid at both ends of the pipeline 130.

[0030] The sample may include but is not limited to samples such as microorganisms, blood, body fluids, and bone marrow fluid. In one embodiment, when the sampling mechanism 110 draws the sample to be tested, the sample is first mixed to improve the subsequent detection accuracy of the sample. The sampling mechanism 110 may be but is not limited to a sampling needle. When the sampling mechanism 110 draws the sample, it is divided into puncture sampling and open sampling according to the part of the container holding the sample. When the container holding the sample is a container with a cover, the sampling mechanism 110 needs to pass through the cover of the container when drawing the sample. Therefore, this method of drawing the sample is called puncture sampling, and accordingly, the sampling needle is called a puncture needle 112. When the opening of the container holding the sample is open and does not have a cover, when the sampling mechanism 110 draws the sample, the sample is directly drawn from the open opening of the container. Therefore, this method of drawing the sample to be tested is called open sampling.

[0031] The pipeline 130 may be, but is not limited to, an elastic hose. The power source 140 may be a syringe or a negative pressure device. The valve 150 may be, but is not limited to, a pinch valve (also known as a pressure-break valve or air pressure valve), a solenoid valve, or the like. The control mechanism 160 may be, but is not limited to, a processor. The cleaning fluid may be, but is not limited to, a diluent for diluting the sample. The cleaning fluid may be, but is not limited to, physiological saline, or the like.

[0032] Please also refer to Figure 2 and Figure 3 , Figure 2This is a schematic diagram of a pinch valve in an open state according to one embodiment of the present application; Figure 3 for Figure 2 , a schematic diagram of a pinch valve in a blocked state is shown. The pinch valve includes a lever 151 and a piston rod 152 disposed relative to each other. The lever 151 and the piston rod 152 are movable relative to each other. When the pinch valve is in the open state, a gap is defined between the lever 151 and the piston rod 152, allowing the pipeline 130 to pass through and allowing the liquid in the pipeline 130 to pass through. When the pinch valve is in the blocked state, the gap between the lever 151 and the piston rod 152 decreases, causing the pipe 130 to partially conform to the wall of the pipeline 130, thereby blocking the passage of liquid in the pipeline 130. It will be understood that the piston rod 152 can be moved by the air source 170.

[0033] After the sampling mechanism 110 draws the sample, the sample flows through the sample loading mechanism 120 via the pipeline 130 between the sampling mechanism 110 and the sample loading mechanism 120. The sample loading mechanism 120 loads the sample. In one embodiment, the sample loading mechanism 120 is a sample dropper. In one embodiment, the sample loading mechanism 120 loads the sample onto a glass slide.

[0034] The following describes the workflow of the slide pusher in conjunction with the aforementioned slide pusher. The control mechanism 160 instructs the sampling mechanism 110 to load the sample. The sampling mechanism 110 loads the sample under the control of the control mechanism 160. The sample loaded by the sampling mechanism 110 enters the sample loading mechanism 120 via the pipeline 130. The sample loading mechanism 120 loads the sample onto the glass slide. After the sample is loaded onto the glass slide, the slide pusher in the slide pusher smoothes the sample on the glass slide to form a smear. The dyeing mechanism dyes the smear. The detection mechanism detects the dyed smear to obtain the test result of the sample. After the sample is loaded onto the glass slide via the sample loading mechanism 120, the sampling mechanism 110, the sample loading mechanism 120, and the pipeline 130 need to be cleaned. The power source 140 drives the cleaning fluid in the pipeline 130 to clean the sampling mechanism 110 and the sample loading mechanism 120. After the sampling mechanism 110 , the sample adding mechanism 120 and the pipeline 130 are completely cleaned by the cleaning liquid, the tablet pusher enters sleep mode or shuts down.

[0035] In the related art, before the tablet pusher enters sleep or shuts down, the air source 170 connected to the valve 150 is closed, releasing the pressure within the valve 150, causing the valve 150 to open. The opening of the valve 150, in turn, causes the pipeline 130 to be in a conductive state. There is a height difference between the sampling mechanism 110 and the sample loading mechanism 120. When the pipeline 130 is in a conductive state, the cleaning fluid in the pipeline 130 will flow out of the lower height mechanism. Typically, the sampling mechanism 110 is higher than the sample loading mechanism 120. Therefore, under normal circumstances, the cleaning fluid in the pipeline 130 will flow out of the sample loading mechanism 120.

[0036] After the cleaning liquid cleans the sampling mechanism 110 and the sample loading mechanism 120, the control mechanism 160 in the tablet pusher of the present application controls the power source 140 to suck out the cleaning liquid in the pipeline 130 or controls the power source 140 to drive the cleaning liquid so that there is no height difference between the liquid levels at both ends of the cleaning liquid in the pipeline 130. In other words, the cleaning liquid in the pipeline 130 is sucked out, or there is no height difference between the liquid level where the pipeline 130 connects to the sampling mechanism 110 and the liquid level where the pipeline 130 connects to the sample loading mechanism 120, thereby preventing the cleaning liquid in the pipeline 130 from flowing out.

[0037] See also Figure 4 , Figure 4 This is a block diagram of a tablet ejector according to another embodiment of the present application. In one embodiment, the pipeline 130 includes a first sub-pipeline 131 and a second sub-pipeline 132. One end of the first sub-pipeline 131 is connected to the sampling mechanism 110, and the other end is connected to one end of the second sub-pipeline 132. The other end of the second sub-pipeline 132 is connected to the sample loading mechanism 120. A first valve V1 is provided on the first sub-pipeline 131, and a second valve V2 is provided on the second sub-pipeline 132.

[0038] The first sub-conduit 131 is provided with a first valve V1. When the first valve V1 is on, the first sub-conduit 131 is open; when the first valve V1 is off, the first sub-conduit 131 is blocked. Correspondingly, the second sub-conduit 132 is provided with a second valve V2. When the second valve V2 is on, the second sub-conduit 132 is open; when the second valve V2 is off, the second sub-conduit 132 is blocked. It is understood that when both the first valve V1 and the second valve V2 are on, the first sub-conduit 131 and the second sub-conduit 132 are both open. Accordingly, the conduit 130 between the sampling mechanism 110 and the sample loading mechanism 120 is open, and the sample can enter the sample loading mechanism 120 through the conduit 130 consisting of the sampling mechanism 110, the first sub-conduit 131, and the second sub-conduit 132.

[0039] In one embodiment, controlling the power source 140 to suck out the cleaning liquid in the pipeline 130 specifically includes: opening the first valve V1, closing the second valve V2, and controlling the power source 140 to suck out the cleaning liquid in the first sub-pipeline 131; and closing the first valve V1, opening the second valve V2, and controlling the power source 140 to suck out the cleaning liquid in the second sub-pipeline 132.

[0040] In another embodiment, controlling the power source 140 to suck out the cleaning fluid in the pipeline 130 specifically includes: closing the first valve V1, opening the second valve V2, and controlling the power source 140 to suck out the cleaning fluid in the second sub-pipeline 132; and opening the first valve V1, closing the second valve V2, and controlling the power source 140 to suck out the cleaning fluid in the first sub-pipeline 131.

[0041] When the first valve V1 is opened, the first sub-pipeline 131 is connected, and the cleaning fluid in the first sub-pipeline 131 can be sucked by the power source 140. When the second valve V2 is closed, the second sub-pipeline 132 is blocked, and the cleaning fluid in the second sub-pipeline 132 cannot be sucked by the power source 140. Similarly, when the first valve V1 is closed, the first sub-pipeline 131 is blocked, and the cleaning fluid in the first sub-pipeline 131 cannot be sucked by the power source 140. When the second valve V2 is opened, the second sub-pipeline 132 is connected, and the cleaning fluid in the second sub-pipeline 132 can be sucked by the power source 140.

[0042] In one embodiment, the control mechanism 160 is configured to: close the first valve V1 and open the second valve V2, and control the power source 140 to suck out the cleaning fluid in the second sub-pipeline 132; after the cleaning fluid in the second sub-pipeline 132 is sucked out, open the first valve V1 and close the first valve V1, and control the power source 140 to suck out the cleaning fluid in the first sub-pipeline 131.

[0043] The power source 140 first sucks out the cleaning liquid in the second sub-pipeline 132 and then sucks out the cleaning liquid in the first sub-pipeline 131 , thereby preventing the cleaning liquid in the second sub-pipeline 132 from flowing out through the sample adding mechanism 120 when the cleaning liquid in the first sub-pipeline 131 is sucked out.

[0044] In another embodiment, the control mechanism 160 is configured to: open the first valve V1 and close the second valve V2, control the power source 140 to suck out the cleaning fluid in the first sub-pipeline 131; then close the first valve V1 and open the second valve V2, control the power source 140 to suck out the cleaning fluid in the second sub-pipeline 132.

[0045] In this embodiment, the power source 140 first sucks out the cleaning liquid in the first sub-pipeline 131 and then sucks out the cleaning liquid in the second sub-pipeline 132, which can prevent the cleaning liquid in the first sub-pipeline 131 from flowing out through the sampling mechanism 110 when the cleaning liquid in the second sub-pipeline 132 is sucked out.

[0046] In one embodiment, when the cleaning liquid in the first sub-pipeline 131 is emptied, 200 μm of cleaning liquid can be sucked out; when the cleaning liquid in the second sub-pipeline 132 is emptied, 300 μm of cleaning liquid can be sucked out. It should be understood that the above-mentioned amounts of cleaning liquid in the first sub-pipeline 131 and the second sub-pipeline 132 are merely examples and should not be construed as limiting the amounts of cleaning liquid in the first sub-pipeline 131 and the second sub-pipeline 132 in this application.

[0047] In one embodiment, controlling the power source 140 to drain the cleaning fluid in the pipeline 130 specifically includes: opening the first valve V1 and the second valve V2, and controlling the power source 140 to drain the cleaning fluid in the first sub-pipeline 131 and the second sub-pipeline 132.

[0048] In this embodiment, the first valve V1 is opened to connect the first sub-pipeline 131; the second valve V2 is opened to connect the second sub-pipeline 132, and the cleaning fluid in the first sub-pipeline 131 and the second sub-pipeline 132 can be emptied via the power source 140. The control method of this embodiment is simple and easy to implement.

[0049] In one embodiment, the valve 150 is a pneumatic valve, and the control mechanism 160 is further configured to: close the gas source 170 .

[0050] After the control mechanism 160 controls the power source 140 to evacuate the cleaning fluid from the pipeline 130 or controls the power source 140 to drive the cleaning fluid so that there is no height difference between the two ends of the cleaning fluid in the pipeline 130, the control mechanism 160 closes the air source 170. The valve 150 is a pneumatic valve. After closing the air source 170, the pressure within the pneumatic valve is released, and the pipeline 130 is opened. Because the cleaning fluid in the pipeline 130 has been evacuated or the height difference between the two ends of the cleaning fluid in the pipeline 130 has disappeared, the cleaning fluid in the pipeline 130 will not flow out through the sampling mechanism 110 or the sample loading mechanism 120, even if the pipeline 130 is opened.

[0051] In one embodiment, the control mechanism 160 is further configured to: shut down the tablet pusher, or put the tablet pusher into a sleep mode.

[0052] Since the cleaning liquid in the pipeline 130 or the power source 140 is controlled to drive the cleaning liquid so that there is no height difference between the liquid levels at both ends of the cleaning liquid in the pipeline 130, even if the tablet pusher is turned off or enters the sleep mode, the cleaning liquid in the pipeline 130 will not flow out through the sampling mechanism 110 or the sample adding mechanism 120.

[0053] In one embodiment, the control mechanism 160 is further configured to: when the tablet pusher exits the sleep mode or is turned on, instruct the power source 140 to drive the cleaning fluid to fill the pipeline 130 to clean the sampling mechanism 110 and the sample adding mechanism 120 .

[0054] When the slide pusher exits the sleep mode or is turned on, the power source 140 is instructed to drive the cleaning fluid to fill the pipeline 130 to clean the sampling mechanism 110 and the sample adding mechanism 120 to prepare for the next sample aspiration and blood dripping.

[0055] See also Figure 5 , Figure 5This is a partial structural diagram of a film pusher in one embodiment of the present application. Specifically, the pipeline 130 includes a first sub-pipeline 131 and a second sub-pipeline 132, the sampling mechanism 110 includes a puncture swab 111 and a puncture needle 112, and the sample adding mechanism 120 includes a dripping needle 122 and a dripping swab 121. The puncture needle 112 is connected to the dripping needle 122 through the first sub-pipeline 131 and the second sub-pipeline 132. A first valve V1 is provided on the first sub-pipeline 131, and a second valve V2 is provided on the second sub-pipeline 132. The puncture swab 111 is connected to the waste liquid device 181 through a third sub-pipeline 133 and a third valve V3 provided in the third sub-pipeline 133. The puncture swab 111 and the puncture needle 112 are connected to the cleaning liquid device 182 through a fourth sub-pipeline 134 and a fourth valve V4 provided in the fourth sub-pipeline 134. In this embodiment, the connection point between the first sub-pipeline 131 and the second sub-pipeline 132 is intersection C1, which is connected to the cleaning fluid device 182 via the fifth sub-pipeline 135 and the fifth valve V5 disposed therein. The syringe 1 is connected to the intersection C1 via a pipeline, wherein the connection point between the fifth sub-pipeline 135 and the syringe 1 pipeline is intersection C2. One end of the dripping needle 122 is connected to the second sub-pipeline 132. The dripping swab 121 is used to clean the outer wall of the dripping needle 122. The dripping swab 121 is connected to the waste liquid device 181 via the seventh sub-pipeline 137 and the seventh valve V7 disposed therein. The dripping swab 121 is also connected to the cleaning fluid device 182 via the eighth sub-pipeline 138 and the eighth valve V8 disposed therein. In this embodiment, both the first sub-pipeline 131 and the second sub-pipeline 132 are controlled by the syringe 1.

[0056] See also Figure 6 , Figure 6This is a partial structural diagram of a film pusher in another embodiment of the present application. In this embodiment, the pipeline 130 includes a first sub-pipeline 131 and a second sub-pipeline 132, the sampling mechanism 110 includes a puncture swab 111 and a puncture needle 112, and the sample addition mechanism 120 includes a dripping needle 122 and a dripping swab 121. The puncture needle 112 is connected to the dripping needle 122 through the first sub-pipeline 131 and the second sub-pipeline 132. A first valve V1 is provided on the first sub-pipeline 131, and a second valve V2 is provided on the second sub-pipeline 132. The puncture swab 111 is connected to the waste liquid device 181 through a third sub-pipeline 133 and a third valve V3 provided in the third sub-pipeline 133. The puncture swab 111 and the puncture needle 112 are connected to the cleaning liquid device 182 through a fourth sub-pipeline 134 and a fourth valve V4 provided in the fourth sub-pipeline 134. In this embodiment, the connection point between the first sub-conduit 131 and the second sub-conduit 132 is intersection C1, which is connected to the cleaning fluid device 182 via the fifth sub-conduit 135 and a fifth valve V5 disposed therein. Syringe 1 is connected to intersection C1 via conduit 130, where the connection point between the fifth sub-conduit 135 and the conduit of syringe 1 is intersection C2. One end of syringe 2 is connected to the cleaning fluid device 182 via a sixth valve V6 and corresponding conduit. The other end of syringe 2 is in communication with the second sub-conduit 132 between the second valve V2 and the dripping needle 122. One end of the dripping needle 122 is connected to the second sub-conduit 132. The dripping swab 121 is used to clean the outer wall of the dripping needle 122. The dripping swab 121 is connected to the waste liquid device 181 via the seventh sub-conduit 137 and the seventh valve V7 provided on the seventh sub-conduit 137. The dripping swab 121 is also connected to the cleaning liquid device 182 via the eighth sub-conduit 138 and the eighth valve V8 provided on the eighth sub-conduit 138. In other words, in this embodiment, the first sub-conduit 131 is controlled by the syringe 1, and the second sub-conduit 132 is controlled by the syringe 2.

[0057] The present application also provides a method for preventing liquid dripping from a tablet pusher. Specifically, the method includes, but is not limited to, a method for preventing liquid dripping after the tablet pusher is turned off, and a method for preventing liquid dripping after the tablet pusher is dormant. The method can be applied to the tablet pusher provided in any of the aforementioned methods. The tablet pusher also implements the method for preventing liquid dripping from the tablet pusher in the following embodiments of the present application. The method for preventing liquid dripping from the tablet pusher provided in the present application will be described below in conjunction with the aforementioned tablet pusher.

[0058] The tablet pusher includes a sampling mechanism 110, a sample loading mechanism 120, a pipeline 130 connecting the sampling mechanism 110 and the sample loading mechanism 120, a power source 140 connected to the pipeline 130, a valve 150 corresponding to the pipeline 130, and an air source 170 connected to the valve 150. Figure 7 , Figure 7 The flowchart of the method for preventing liquid dripping from a tablet pusher provided in one embodiment of the present application includes but is not limited to S100 and S200, which are described in detail as follows.

[0059] S100 , the power source 140 drives the cleaning fluid to clean the sampling mechanism 110 and the sample adding mechanism 120 .

[0060] S200 , the power source 140 sucks out the cleaning liquid in the pipeline 130 between the sampling mechanism 110 and the sample adding mechanism 120 , or the power source 140 drives the cleaning liquid so that there is no height difference between the two ends of the cleaning liquid in the pipeline 130 .

[0061] In one embodiment, the pipeline 130 includes a first sub-pipeline 131 and a second sub-pipeline 132. One end of the first sub-pipeline 131 is connected to the sampling mechanism 110, and the other end is connected to one end of the second sub-pipeline 132. The other end of the second sub-pipeline 132 is connected to the sample addition mechanism 120. A first valve V1 is provided on the first sub-pipeline 131, and a second valve V2 is provided on the second sub-pipeline 132. In S200, the power source evacuates the cleaning fluid in the pipeline 130 between the sampling mechanism 110 and the sample addition mechanism 120, which specifically includes S210 or S220. For details, please refer to Figure 8 and Figure 9 , Figure 8 for Figure 7 A specific flow chart of S200 provided in an embodiment; Figure 9 for Figure 7 Another embodiment of the present invention provides a specific flow chart of S200. S210 and S220 are described in detail as follows.

[0062] S210 , opening the first valve V1 and closing the second valve V2 to empty the cleaning liquid in the first sub-pipeline 131 ; and closing the first valve V1 and opening the second valve V2 to empty the cleaning liquid in the second sub-pipeline 132 .

[0063] The power source 140 first sucks out the cleaning liquid in the second sub-pipeline 132 and then sucks out the cleaning liquid in the first sub-pipeline 131 , thereby preventing the cleaning liquid in the second sub-pipeline 132 from flowing out through the sample adding mechanism 120 when the cleaning liquid in the first sub-pipeline 131 is sucked out.

[0064] S220 , close the first valve V1 , open the second valve V2 , and suck out the cleaning liquid in the second sub-pipeline 132 ; and open the first valve V1 , close the second valve V2 , and suck out the cleaning liquid in the first sub-pipeline 131 .

[0065] When the first valve V1 is opened, the first sub-pipeline 131 is connected, and the cleaning fluid in the first sub-pipeline 131 can be sucked by the power source 140. When the second valve V2 is closed, the second sub-pipeline 132 is blocked, and the cleaning fluid in the second sub-pipeline 132 cannot be sucked by the power source 140. Similarly, when the first valve V1 is closed, the first sub-pipeline 131 is blocked, and the cleaning fluid in the first sub-pipeline 131 cannot be sucked by the power source 140. When the second valve V2 is opened, the second sub-pipeline 132 is connected, and the cleaning fluid in the second sub-pipeline 132 can be sucked by the power source 140.

[0066] The power source 140 first sucks out the cleaning liquid in the first sub-pipeline 131 and then sucks out the cleaning liquid in the second sub-pipeline 132 , thereby preventing the cleaning liquid in the first sub-pipeline 131 from flowing out through the sampling mechanism 110 when the cleaning liquid in the second sub-pipeline 132 is sucked out.

[0067] See also Figure 10 , Figure 10 for Figure 7 In another embodiment, a specific flow chart of S200 is provided. In S200, the power source sucks out the cleaning liquid in the pipeline 130 between the sampling mechanism 110 and the sample adding mechanism 120, which specifically includes S230.

[0068] S230 , opening the first valve V1 and the second valve V2 to drain the cleaning liquid in the first sub-pipeline 131 and the second sub-pipeline 132 .

[0069] In this embodiment, the first valve V1 is opened to connect the first sub-pipeline 131; the second valve V2 is opened to connect the second sub-pipeline 132, and the cleaning fluid in the first sub-pipeline 131 and the second sub-pipeline 132 can be emptied via the power source 140. The control method of this embodiment is simple and easy to implement.

[0070] In one embodiment, see Figure 11 , Figure 11This is a flow chart of a method for preventing liquid dripping from a tablet pusher, provided in another embodiment of the present application. The valve 150 is a pressure valve, and the method further includes: S300, closing the gas source 170. Specifically, the method includes S100, S200, and S300. For details of S100 and S200, please refer to the previous description and will not be repeated here.

[0071] After the control mechanism 160 controls the power source 140 to evacuate the cleaning fluid from the pipeline 130 or controls the power source 140 to drive the cleaning fluid so that there is no height difference between the two ends of the cleaning fluid in the pipeline 130, the control mechanism 160 closes the air source 170. The valve 150 is a pneumatic valve. After closing the air source 170, the pressure within the pneumatic valve is released, and the pipeline 130 is opened. Because the cleaning fluid in the pipeline 130 or the power source 140 is controlled to drive the cleaning fluid so that there is no height difference between the two ends of the cleaning fluid in the pipeline 130, even if the pipeline 130 is opened, the cleaning fluid in the pipeline 130 will not flow out through the sampling mechanism 110 or the sample loading mechanism 120.

[0072] In one embodiment, the method further includes S400, see Figure 12 , Figure 12 This is a flow chart of a method for preventing liquid dripping from a tablet pusher provided in another embodiment of the present application. In this embodiment, the method includes S400 which can be combined with the method described in any of the previous embodiments. In the schematic diagram of this embodiment, the method includes S400 combined with Figure 12 The method described is illustrated as an example. S400 is described in detail as follows.

[0073] S400: Turn off the film pusher or put the film pusher into a sleep mode.

[0074] Since the cleaning liquid in the pipeline 130 or the power source 140 is controlled to drive the cleaning liquid so that there is no height difference between the liquid levels at both ends of the cleaning liquid in the pipeline 130, even if the tablet pusher is turned off or enters the sleep mode, the cleaning liquid in the pipeline 130 will not flow out through the sampling mechanism 110 or the sample adding mechanism 120.

[0075] See also Figure 13 , Figure 13 This is a flow chart of a method for preventing liquid dripping from a tablet pusher provided in another embodiment of the present application. The method further includes S500. The method including S500 can be combined with the method provided in any of the previous embodiments. In this embodiment, the method including S500 is combined with Figure 12 The method described in the embodiment and its related implementation methods are used as an example for illustration.

[0076] S500 , when the tablet pusher exits the sleep mode or is turned on, the power source 140 drives the cleaning fluid to fill the pipeline 130 .

[0077] When the slide pusher exits the sleep mode or is turned on, the power source 140 is instructed to drive the cleaning fluid to fill the pipeline 130 to clean the sampling mechanism 110 and the sample adding mechanism 120 to prepare for the next sample aspiration and blood dripping.

[0078] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present application, and these improvements and modifications are also considered to be within the scope of protection of the present application.

Claims

1. A film pusher, characterized in that: The film pusher comprises: a sampling mechanism for sucking samples, and a sample adding mechanism for loading samples, wherein the sampling mechanism and the sample adding mechanism are connected via a pipeline; a power source for driving the cleaning fluid in the pipeline to clean the sampling mechanism and the sample adding mechanism; A valve, the valve being provided corresponding to the pipeline and being used to control the connection and blocking of the pipeline; and A control mechanism, wherein the control mechanism is configured to: instruct the sampling mechanism to absorb a sample, the sample is transported to the sample adding mechanism through the pipeline, instruct the sample adding mechanism to load the sample, control the power source to drive the cleaning fluid to clean the sampling mechanism and the sample adding mechanism, control the power source to suck out the cleaning fluid in the pipeline or control the power source to drive the cleaning fluid so that there is no height difference between the liquid levels of the cleaning fluid at both ends of the pipeline, and after the power source sucks out the cleaning fluid in the pipeline or the power source makes it so that there is no height difference between the liquid levels of the cleaning fluid at both ends of the pipeline, turn off the tablet pusher, or put the tablet pusher into sleep mode.

2. The tablet pusher according to claim 1, wherein: The pipeline includes a first sub-pipeline and a second sub-pipeline, one end of the first sub-pipeline is connected to the sampling mechanism, and the other end is connected to one end of the second sub-pipeline, and the other end of the second sub-pipeline is connected to the sample adding mechanism. A first valve is provided on the first sub-pipeline, and a second valve is provided on the second sub-pipeline.

3. The tablet pusher according to claim 2, wherein: The controlling the power source to suck out the cleaning fluid in the pipeline specifically includes: Open the first valve, close the second valve, and control the power source to empty the cleaning fluid in the first sub-pipeline; and close the first valve, open the second valve, and control the power source to empty the cleaning fluid in the second sub-pipeline; or Close the first valve, open the second valve, and control the power source to suck out the cleaning fluid in the second sub-pipeline; and open the first valve, close the second valve, and control the power source to suck out the cleaning fluid in the first sub-pipeline.

4. The tablet pusher according to claim 2, wherein: The controlling the power source to suck out the cleaning fluid in the pipeline specifically includes: The first valve and the second valve are opened to control the power source to suck out the cleaning fluid in the first sub-pipeline and the second sub-pipeline.

5. The tablet pusher according to any one of claims 1 to 4, characterized in that: The power source is a syringe or a negative pressure device.

6. The tablet pusher according to any one of claims 1 to 4, characterized in that: The valve is a pneumatic valve, and / or, before the power source sucks out the cleaning fluid in the pipeline or the power source makes it so that there is no height difference between the liquid levels at both ends of the cleaning fluid in the pipeline, the valve is configured to put the pipeline in a blocked state, and after the power source sucks out the cleaning fluid in the pipeline or the power source makes it so that there is no height difference between the liquid levels at both ends of the cleaning fluid in the pipeline, the valve does not operate but is in a conducting state.

7. The tablet pusher according to claim 6, wherein: The control mechanism is further configured to: shut off the gas source.

8. The tablet pusher according to claim 1, wherein: The control mechanism is further configured to: when the tablet pusher exits the sleep mode or is turned on, instruct the power source to drive the cleaning fluid to fill the pipeline.

9. A method for preventing liquid dripping from a tablet pusher, the tablet pusher comprising a sampling mechanism, a sample loading mechanism, a pipeline connecting the sampling mechanism and the sample loading mechanism, a power source connected to the pipeline, a valve corresponding to the pipeline, and an air source connected to the valve, characterized in that: The method comprises: A power source drives a cleaning liquid to clean the sampling mechanism and the sample adding mechanism; The power source sucks out the cleaning liquid in the pipeline between the sampling mechanism and the sample adding mechanism, or the power source drives the cleaning liquid so that there is no height difference between the liquid levels of the cleaning liquid at both ends of the pipeline, and after the power source sucks out the cleaning liquid in the pipeline or the power source makes there is no height difference between the liquid levels of the cleaning liquid at both ends of the pipeline, the tablet pusher is turned off or the tablet pusher is put into sleep mode.

10. The method according to claim 9, wherein The pipeline includes a first sub-pipeline and a second sub-pipeline, one end of the first sub-pipeline is connected to the sampling mechanism, and the other end is connected to one end of the second sub-pipeline, and the other end of the second sub-pipeline is connected to the sample adding mechanism. A first valve is provided on the first sub-pipeline, and a second valve is provided on the second sub-pipeline. The power source sucks out the cleaning liquid in the pipeline between the sampling mechanism and the sample adding mechanism, specifically including: Open the first valve, close the second valve, and suck out the cleaning liquid in the first sub-pipeline; and close the first valve, open the second valve, and suck out the cleaning liquid in the second sub-pipeline; or Close the first valve, open the second valve, and suck out the cleaning liquid in the second sub-pipeline; and open the first valve, close the second valve, and suck out the cleaning liquid in the first sub-pipeline.

11. The method according to claim 9, wherein The pipeline includes a first sub-pipeline and a second sub-pipeline, one end of the first sub-pipeline is connected to the sampling mechanism, and the other end is connected to one end of the second sub-pipeline, and the other end of the second sub-pipeline is connected to the sample adding mechanism. A first valve is provided on the first sub-pipeline, and a second valve is provided on the second sub-pipeline. The power source sucks out the cleaning liquid in the pipeline between the sampling mechanism and the sample adding mechanism, specifically including: Open the first valve and the second valve to drain the cleaning fluid from the first sub-pipeline and the second sub-pipeline.

12. The method according to any one of claims 9 to 11, wherein: The valve is an air pressure valve, and the method further includes: closing the air source.

13. The method according to claim 9, wherein The method further comprises: When the tablet pusher exits the sleep mode or is turned on, the power source drives the cleaning fluid to fill the pipeline.

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