CN213068894U - Sample analyzer - Google Patents

Abstract

The utility model discloses a sample analyzer, sample analyzer includes: the device comprises a positive pressure gas circuit, a negative pressure gas circuit, a detection assembly, a liquid circuit supporting assembly and a waste liquid treatment assembly; the positive pressure gas circuit is used for providing positive pressure, the negative pressure gas circuit is used for providing negative pressure, and the positive pressure and the negative pressure are matched for driving the detection assembly to detect the liquid to be detected so as to obtain detection information; and/or driving the fluid path support assembly to provide fluid path support for the detection assembly; and/or driving the waste liquid treatment component to receive the detection waste liquid of the detection component. In this way, the utility model discloses can be convenient for maintain.

Description

Sample analyzer

Technical Field

The utility model relates to the technical field of medical equipment, especially, relate to a sample analyzer.

Background

Sample analyzers, particularly blood cell counting devices, require a drive device to drive the processes of fluid flow, opening and closing of tubing, component movement, and the like. Typically, the drive means typically comprises a microcomputer controlled motor structure or is driven by pressurized gas.

In the prior art, a single air pump is typically used to provide both positive and negative pressure to drive the sample analyzer.

SUMMERY OF THE UTILITY MODEL

The utility model mainly provides a sample analyzer. The problem of prior art adopts the inconvenient maintenance that single air pump leads to in order to solve.

In order to solve the technical problem, the utility model discloses a technical scheme be: providing a sample analyzer, the sample analyzer comprising: the device comprises a positive pressure gas circuit, a negative pressure gas circuit, a detection assembly, a liquid circuit supporting assembly and a waste liquid treatment assembly; the positive pressure gas circuit is used for providing the malleation, the negative pressure gas circuit is used for providing the negative pressure, the malleation with the negative pressure cooperation is used for: driving the detection assembly to detect the liquid to be detected so as to obtain detection information; and/or driving the fluid path support component to provide fluid path support for the detection component; and/or driving the waste liquid treatment component to receive the detection waste liquid of the detection component.

According to an embodiment provided by the present invention, the positive pressure gas circuit includes a positive pressure gas pump, a first gas storage and a first check valve, one end of the first check valve is communicated with the output end of the positive pressure gas pump, the other end is communicated with the first gas storage, and the positive pressure gas pump outputs positive pressure gas, so that the first gas storage stores positive pressure gas with a first positive pressure; the negative pressure air circuit comprises a negative pressure air pump, a second air storage and a second one-way valve, one end of the second one-way valve is communicated with the output end of the negative pressure air pump, the other end of the second one-way valve is communicated with the second air storage, and the negative pressure air pump outputs negative pressure air so that the second air storage stores negative pressure air with pressure as first negative pressure.

According to the utility model provides an embodiment, the liquid way support assembly is including the intercommunication first gas storage with the dosing pump of second gas storage, the dosing pump include the barrier film with set up respectively in the gas chamber and the liquid chamber of barrier film both sides, the malleation gas of first gas storage is used for providing the malleation in order to promote the barrier film orientation the liquid chamber drive, the negative pressure gas of second gas storage is used for providing the negative pressure pulling the barrier film orientation the gas chamber drive.

According to the utility model provides an embodiment, first gas storage ware is first storage pipeline, the second gas storage ware is second storage pipeline.

According to an embodiment provided by the present invention, the positive pressure gas circuit further includes a first overflow valve, the first overflow valve is communicated with the output end of the positive pressure gas pump, so as to adjust the positive pressure gas output by the positive pressure gas pump into a second positive pressure gas and output the second positive pressure gas; the negative pressure air path further comprises a second overflow valve, and the second overflow valve is communicated with the output end of the negative pressure air pump and used for adjusting the negative pressure air output by the negative pressure air pump into the first negative pressure and outputting the first negative pressure.

According to the utility model provides an embodiment, the positive pressure gas circuit still includes the air-vent valve, the air-vent valve set up in first overflow valve with between the first check valve, the governing valve be used for with the malleation gas regulation of second malleation does first malleation and output.

According to the utility model provides an embodiment, the positive pressure gas circuit still includes the air valve, the air valve set up in the air-vent valve with between the first check valve, be used for with the malleation gas of air-vent valve output carries out the trace to the air.

According to an embodiment provided by the present invention, the positive pressure gas circuit further comprises a gas storage device, which is communicated with the output end of the positive pressure gas pump, and is used for storing the positive pressure gas output by the positive pressure gas pump; when the pressure of the positive pressure gas in the gas storage device is reduced to a first gas pressure threshold value, supplementing gas for the gas storage device through the positive pressure gas pump; and when the pressure of the positive pressure gas in the gas storage device rises to a second gas pressure threshold value, stopping the positive pressure gas pump to supplement the gas for the gas storage device.

According to the utility model provides an embodiment, the liquid way support assembly is still including pressing disconnected valve, press disconnected valve with the gas storage device intercommunication, being used for of gas storage device provides the malleation in order to drive press disconnected valve.

According to the utility model provides an embodiment, the positive pressure gas circuit still includes the third check valve, the one end intercommunication of third check valve the output of positive pressure air pump, the other end intercommunication of third check valve the gas storage device, thereby the third check valve opens and passes through the positive pressure air pump does the gas storage device make-up gas, or close thereby stop the positive pressure air pump does the gas storage device make-up gas.

According to the utility model provides an embodiment, sample analyzer still includes built-in liquid storage tank, the malleation with the negative pressure cooperation is used for: and driving the built-in liquid storage tank to provide detection diluent for the detection assembly.

According to an embodiment provided by the present invention, the positive pressure gas circuit further includes a first output end, the first output end is communicated with one end of the first check valve, and is used for outputting positive pressure gas with a first positive pressure; the negative pressure air circuit also comprises a second output end and a third output end, and the second output end and the third output end are respectively communicated with one end of the negative pressure air pump and are respectively used for outputting negative pressure air with the first negative pressure; and a fourth one-way valve is further arranged between the second output end and the negative pressure air pump, and a fifth one-way valve is further arranged between the third output end and the negative pressure air pump.

According to an embodiment provided by the present invention, the detecting component comprises an impedance cell, the impedance cell is used for detecting the liquid to be detected to obtain the blood cell parameter of the liquid to be detected; and/or the detection assembly comprises a specific protein reaction tank and a specific protein detection tank, the specific protein reaction tank is used for processing the liquid to be detected to obtain the liquid to be detected, and the specific protein detection tank is used for detecting the liquid to be detected to obtain specific protein parameters of the liquid to be detected.

According to an embodiment provided by the present invention, the liquid storage tank in the apparatus includes a blood cell diluent storage tank, and the detection diluent includes a first diluent; the hemocyte diluent storage tank is respectively connected with the first output end and the second output end, positive pressure gas at the first output end is used for providing positive pressure to drive the hemocyte diluent storage tank to discharge first diluent into the impedance pool, and negative pressure gas at the second output end is used for providing negative pressure to drive the hemocyte diluent storage tank to suck the first diluent from the diluent barrel; the waste liquid treatment component comprises a blood cell waste liquid tank, and the detection waste liquid comprises a first waste liquid; the blood cell waste liquid tank is connected respectively first output with the second output, the negative pressure gas of second output is used for providing the negative pressure in order to drive the blood cell waste liquid tank acquires the first waste liquid of impedance pond, the positive pressure gas of first output is used for providing the positive pressure in order to drive the blood cell waste liquid tank will first waste liquid is discharged.

According to an embodiment provided by the present invention, the liquid storage tank comprises an immune diluent storage tank, and the detection diluent comprises a second diluent; the immune diluent storage tank is respectively connected with the first output end and the second output end, positive pressure gas at the first output end is used for providing positive pressure to drive the immune diluent storage tank to discharge second diluent to the specific protein reaction tank, and negative pressure gas at the second output end is used for providing negative pressure to drive the immune diluent storage tank to suck the second diluent from a diluent barrel; the waste liquid treatment component comprises an immune waste liquid tank, and the detection waste liquid comprises a second waste liquid; the immune waste liquid tank is respectively connected with the first output end and the third output end, negative pressure gas at the third output end is used for providing negative pressure to drive the immune waste liquid tank to receive second waste liquid from the specific protein reaction tank and/or the specific protein detection tank, and positive pressure gas at the first output end is used for providing positive pressure to drive the immune waste liquid tank to discharge the second waste liquid.

According to the utility model provides an embodiment, the second output with be provided with first buffering cup between the negative pressure air pump, the third output with be provided with second buffering cup between the negative pressure air pump.

According to the utility model provides an embodiment, the negative pressure gas circuit still include with the long tube of making an uproar falls that the negative pressure air pump is connected.

The utility model has the advantages that: be different from prior art's condition, come to detect subassembly and/or liquid way supporting component and/or waste liquid treatment subassembly through positive pressure gas circuit and negative pressure gas circuit, can stop a gas circuit and appear damaging and lead to the condition of whole sample analysis appearance, and positive pressure gas circuit and negative pressure gas circuit separately set up, are convenient for overhaul and maintain.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained without inventive work, wherein:

fig. 1 is a schematic structural diagram of a first embodiment of a sample analyzer according to the present invention.

Fig. 2 is a schematic view of the gas circuit structure of the positive pressure gas circuit and the negative pressure gas circuit in the sample analyzer, which are matched with the liquid circuit supporting assembly, the waste liquid treatment assembly and the liquid storage tank in the sample analyzer;

fig. 3 is a schematic view of a liquid path structure of a liquid storage tank and a waste liquid treatment component in a matching machine of a detection component in a sample analyzer.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

It should be noted that, if directional indications (such as upper, lower, left, right, front and rear … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indications are changed accordingly.

In addition, if there is a description relating to "first", "second", etc. in the embodiments of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a sample analyzer 10, wherein the sample analyzer 10 includes a positive pressure gas circuit 100, a negative pressure gas circuit 200, a detection assembly 300, a liquid circuit supporting assembly 400 and a waste liquid processing assembly 500.

The positive pressure gas circuit 100 may be configured to provide positive pressure, the negative pressure gas circuit 200 may be configured to provide negative pressure, and the positive pressure and the negative pressure may be used to drive the detection assembly 300 to detect the liquid to be detected to obtain detection information; and/or drive the fluid path support assembly 400 to provide fluid path support to the detection assembly 300; and/or drive the waste treatment assembly 500 to receive the test waste from the test assembly 300.

In the above embodiment, the detection assembly 300 and/or the liquid path support assembly 400 and/or the waste liquid treatment assembly 500 are/is disposed by the positive pressure gas path 100 and the negative pressure gas path 200, so that the situation that one gas path is damaged to cause the whole sample analyzer 10 can be avoided, and the positive pressure gas path 100 and the negative pressure gas path 200 are separately disposed to facilitate the overhaul and maintenance.

As shown in fig. 2, the positive pressure gas circuit 100 includes a positive pressure gas pump 110, a first gas storage 120, and a first check valve 130. One end of the first check valve 130 is communicated with the output end of the positive pressure air pump 110, the other end is communicated with the first gas storage 120, and the positive pressure air pump 110 outputs positive pressure gas, so that the first gas storage 120 stores positive pressure gas with the pressure being the first positive pressure.

Specifically, the positive pressure gas stored in the first gas storage 130 can be prevented from escaping into the positive pressure gas pump 110 by providing the first check valve 130, thereby affecting the pressure of the positive pressure gas of the first gas storage 130.

The negative pressure air circuit 200 includes a negative pressure air pump 210, a second air storage 220 and a second one-way valve 230, one end of the second one-way valve 230 is communicated with the output end of the negative pressure air pump 210, the other end is communicated with the second air storage 220, and the negative pressure air pump 210 outputs negative pressure air, so that the second air storage 220 stores negative pressure air with the pressure of the first negative pressure.

Specifically, the negative pressure air pump 210 outputs the negative pressure air by pumping the air in the second air storage 220, so as to ensure that the negative pressure air with the first negative pressure is stored in the second air storage 220.

The gas in the negative pressure gas pump 210 can be prevented from escaping into the second gas storage 130 by the provision of the second check valve 230, thereby affecting the pressure of the negative pressure gas in the second gas storage 130.

In a specific embodiment, the positive pressure air pump 110 and the negative pressure air pump 210 may be independent single-head pumps or double-head pumps, and the positive pressure air pump 110 and the negative pressure air pump 210 may also share the same double-head pump, thereby reducing the volume of the entire sample analyzer 10.

As shown in fig. 2, the fluid circuit support assembly 400 further includes at least one quantitative pump 410, and the quantitative pump 410 is respectively communicated with the first gas storage 120 and the second gas storage 220. Optionally, the fixed displacement pump 410 includes an isolation diaphragm (not shown), and a gas chamber (not shown) and a liquid chamber (not shown) respectively disposed at two sides of the isolation diaphragm, and optionally, the gas chamber specifically communicates with the first gas storage 120 and the second gas storage 220, the positive pressure gas of the first gas storage 120 may be used to provide positive pressure to push the isolation diaphragm to move towards the liquid chamber, so as to discharge the liquid in the liquid chamber to the outside, and the negative pressure gas of the second gas storage 220 may be used to provide negative pressure to pull the isolation diaphragm to move towards the gas chamber, so as to enable the liquid chamber to suck the liquid from the outside.

Optionally, the sample analyzer 10 may further include a sampling component (not shown), the sampling component may be configured to collect a sample to obtain a solution to be detected, the detection component 300 may include a reagent adding pool, a reaction pool and a detection pool, the reaction pool may be configured to further process the solution to be detected to obtain the solution to be detected, and the detection pool may detect the solution to be detected to obtain detection information. In an optional scenario, the quantitative pump 410 may be configured to suck the additive in the reagent adding pool and discharge the additive into the reaction pool, so that the additive may participate in a reaction on the liquid to be detected, and the quantitative pump 410 may be further configured to pump the liquid to be detected from the reaction pool and discharge the liquid to be detected onto a pipeline of the detection pool or a pipeline near the detection pool.

In other scenarios, the reaction cell and the detection cell may be the same cell, and are not limited herein.

In an alternative embodiment, the first gas storage 120 is a first storage conduit and the second gas storage 220 is a second storage conduit. That is, the first gas storage 120 and the second gas storage 220 are both pipes with larger diameter and longer length. The cavity formed by the cooperation of the first gas storage 120 and the first check valve 130 and the cooperation of the second gas storage 220 and the second check valve 230 can accommodate the gas, and the gas can be homogenized due to the wider and longer cavity, so that the gas output from the first gas storage 120 and the second gas storage 220 is more stable. And further, compared with the gas storage tank, the first gas storage 120 and the second gas storage 220 have lower cost and are more flexible, and can be bent and placed in the whole sample analyzer 10 without needing a larger independent space to be placed as in the gas storage tank.

As shown in fig. 2, the positive pressure gas circuit 100 further includes a first overflow valve 140, and the first overflow valve 140 is communicated with the output end of the positive pressure gas pump 110, so as to adjust the positive pressure gas output by the positive pressure gas pump 110 to a second positive pressure and output the second positive pressure.

Specifically, first overflow valve 140 communicates with the output of positive pressure pump 110, and then adjusts the positive pressure gas at the output of positive pressure pump 110, and after the positive pressure gas that positive pressure pump 110 output is flowing through first overflow valve 140, if be higher than the preset regulation pressure of first overflow valve 140, if the second positive pressure, then the positive pressure gas can be adjusted and reduced pressure to keep the pressure of the second positive pressure to continue the direction of first gas storage 120 and transmit.

Similarly, the negative pressure air circuit 200 further includes a second overflow valve 240, and the second overflow valve 240 is communicated with the output end of the negative pressure air pump 210, so as to adjust the negative pressure air output by the negative pressure air pump 210 to the first negative pressure and output the first negative pressure.

As shown in fig. 2, the positive pressure gas circuit 100 further includes a pressure regulating valve 150, and the pressure regulating valve 150 is disposed between the first relief valve 140 and the first check valve 130, and is capable of regulating the positive pressure gas at the second positive pressure to the first positive pressure and outputting the first positive pressure.

In the above embodiment, by setting the first and second relief valves 140 and 240, the input pressure can be adjusted at a reduced cost.

As shown in fig. 2, the positive pressure gas circuit 100 further includes an air-to-air valve 151, and the air-to-air valve 151 is disposed between the pressure regulating valve 150 and the first check valve 130, and is configured to make the positive pressure gas output by the pressure regulating valve 150 more stable by making the air-to-air valve 151 a little bit empty.

As shown in fig. 2, the positive pressure gas circuit 100 further includes a gas storage device 160, which is communicated with the output end of the positive pressure gas pump 110 and is used for storing the positive pressure gas output by the positive pressure gas pump 110. Specifically, when the pressure of the positive pressure gas in the gas storage device 160 decreases to the first pressure threshold, the positive pressure gas pump 110 supplements the gas to the gas storage device 160; when the pressure of the positive pressure gas in the gas storage device 160 rises to the second air pressure threshold, the positive pressure gas pump 110 is stopped to supplement the gas to the gas storage device 160.

Specifically, the air storage device 160 may be directly connected to the output end of the positive pressure air pump 110, or may be connected to the output end of the positive pressure air pump 110 through the first relief valve 140, which is not limited herein.

In an exemplary embodiment, fluid circuit support assembly 400 further includes a pressure relief valve 420, pressure relief valve 420 is in communication with gas reservoir 160, and the positive pressure gas from gas reservoir 160 is used to actuate pressure relief valve 420. In an optional embodiment, the pressure break valve 420 may be disposed between the reaction component and the detection component, and when the liquid to be detected of the reaction component enters the detection component through the pressure break valve 420, the pressure break valve 420 may effectively reduce the pollution to the liquid to be detected, thereby improving the accuracy of detection. In another alternative embodiment, the pressure-breaking valve 420 can be disposed on the pipe of the waste liquid disposal assembly, and compared with a general valve member, the pressure-breaking valve 420 has a better smooth passage, and can prevent impurities in the pipe from accumulating and blocking.

Optionally, when the positive pressure gas path 100 is in the standby state, the gas storage device 160 may directly continuously provide positive pressure gas to the pressure relief valve 420 to ensure the operation of the pressure relief valve 420, and when the pressure of the positive pressure gas in the gas storage device 160 decreases to the first pressure threshold, the gas may be supplemented to the gas storage device 160 through the positive pressure gas pump 110, so as to ensure that the positive pressure gas in the positive pressure gas pump 110 maintains a certain pressure, and the pressure relief valve 420 may be continuously driven to operate, without always starting the positive pressure gas pump 110 when the sample analyzer is in the standby state, which may effectively reduce energy consumption and improve the life of the positive pressure gas pump 110.

In a specific embodiment, the positive pressure gas circuit 100 further includes a third check valve 162, one end of the third check valve 162 is connected to the output end of the positive pressure gas pump 110, the other end of the third check valve 162 is connected to the gas storage device 160, and the third check valve 162 is opened to supplement the gas to the gas storage device 160 by the positive pressure gas pump 110, or closed to stop the positive pressure gas pump 110 from supplementing the gas to the gas storage device 160.

In a specific embodiment, a first pressure sensor 161 is disposed between the gas storage 160 and the pressure cut-off valve 420, and may be configured to detect the pressure of the positive pressure gas output by the gas storage 160 and control the third check valve 162 and/or the switch of the positive pressure gas pump 110 according to the pressure.

In an embodiment, since the positive pressure pump 110 is further configured to output positive pressure gas to the first gas storage 120, when the pressure of the positive pressure gas in the gas storage 160 rises to the second gas pressure threshold, the third check valve 162 may be closed to stop the positive pressure pump 110 from supplementing gas to the gas storage 160, so as not to interfere with the use of the first gas storage 120.

As shown in fig. 2, the positive pressure gas circuit 100 further includes a first output end 180, and the first output end 180 is communicated with one end of the first check valve 130, and is used for outputting positive pressure gas with a first positive pressure. Specifically, the first output terminal 180 may communicate with one end of the first check valve 130 and the output terminal of the pressure regulating valve 150 through the first three-way joint 191, so that the positive direction gas of the first output terminal 180 may maintain the same pressure as the output terminal of the pressure regulating valve 150 and one end of the first check valve 130.

Similarly, the negative pressure air circuit 200 further includes a second output end 250 and a third output end 260, and the second output end 250 and the third output end 260 are respectively communicated with one end of the negative pressure air pump 210 and are respectively used for outputting the negative pressure air with the first negative pressure. Similarly, the second output 250 is connected to one end of the second check valve 230 through a second three-way joint 192, and the third output 260 is also connected to one end of the second check valve 230 through a third three-way joint 193, so as to have the same pressure as one end of the second check valve 230.

As shown in fig. 1 and 3, the sample analyzer 10 further includes an organic internal reservoir 700, and the positive pressure provided by the positive pressure circuit 100 and the negative pressure provided by the negative pressure circuit 200 cooperate to drive the internal reservoir 700 to provide the detecting dilution to the detecting assembly 300.

As shown in fig. 1 and 3, the detection assembly 300 can be used to detect a blood cell parameter and/or a specific protein parameter of a fluid under test.

As an optional scenario, when the detection assembly 300 can detect a blood cell parameter of the liquid to be detected, the detection assembly 300 includes an impedance cell 310, and the impedance cell 310 can detect the liquid to be detected by an impedance method to obtain the blood cell parameter of the liquid to be detected.

In another optional scenario, if the detection assembly 300 can detect a specific protein parameter of the liquid to be detected, the detection assembly 300 includes a specific protein reaction tank 320 and a specific protein detection tank 330, the specific protein reaction tank 330 is configured to process the liquid to be detected to obtain the liquid to be detected, and the specific protein detection tank 300 is configured to detect the liquid to be detected to obtain the specific protein parameter of the liquid to be detected.

1-3, the in-machine reservoir 700 includes a hemocyte diluent storage tank 710 in fluid communication with the impedance cell 310, and the test diluent includes a first diluent; the corpuscular diluent storage tank 710 is respectively connected to the first output end 180 and the second output end 250, the positive pressure gas at the first output end 180 is used for providing positive pressure to drive the corpuscular diluent storage tank 710 to discharge the first diluent to the impedance cell 310, and the first diluent can be used for diluting the solution to be measured in the impedance cell 310 or cleaning the impedance cell 310. The negative pressure gas at the second output 250 is used to provide a negative pressure to drive the cell diluent storage tank 710 to draw the first diluent from the diluent drum. Optionally, the diluent barrel may be disposed outside the sample analyzer 10 or may be installed in the sample analyzer 10 as a detachable component, which may facilitate timely replacement and replenishment. The waste liquid processing assembly 500 includes a blood cell waste liquid tank 510, and the detection waste liquid includes a first waste liquid; the blood cell waste liquid tank 510 is respectively connected to the first output terminal 180 and the second output terminal 250, the negative pressure gas at the second output terminal 250 is used for providing negative pressure to drive the blood cell waste liquid tank 510 to obtain the first waste liquid of the impedance cell 310, and the positive pressure gas at the first output terminal 180 is used for providing positive pressure to drive the blood cell waste liquid tank 510 to discharge the first waste liquid.

In other scenarios, the blood cell waste tank 510 may also be used to receive waste fluids that are discarded by components such as a sampling assembly.

As shown in fig. 1-3, the on-board reservoir 700 may further include an immune diluent storage tank 720, the test diluent comprising a second diluent; the immune diluent storage tank 720 is respectively connected with the first output end 180 and the second output end 250, positive pressure gas at the first output end 180 is used for providing positive pressure to drive the immune diluent storage tank 720 to discharge the second diluent to the specific protein reaction tank 320, and negative pressure gas at the second output end 250 is used for providing negative pressure to drive the immune diluent storage tank 720 to suck the second diluent from the diluent barrel; the waste liquid treatment assembly 500 includes an immune waste liquid tank 520, and the detection waste liquid includes a second waste liquid; the immune waste liquid tank 520 is respectively connected with the first output end 180 and the third output end 260, the negative pressure gas of the third output end 260 is used for providing negative pressure to drive the immune waste liquid tank 520 to receive the second waste liquid from the specific protein reaction tank 320 and/or the specific protein detection tank 330, and the positive pressure gas of the first output end 180 is used for providing positive pressure to drive the immune waste liquid tank 520 to discharge the second waste liquid.

As shown in fig. 2, a first buffer cup 251 is disposed between the second output end 250 and the negative pressure air pump 210, and a second buffer cup 261 is disposed between the third output end 260 and the negative pressure air pump 210. The first buffer cup 251 and the second buffer cup 261 are arranged to prevent the liquid in the tank body from being sucked into the negative pressure air pump 210 due to negative pressure after the tank body is full of liquid, so that the negative pressure air pump 210 is damaged.

As shown in fig. 2, a second pressure sensor 186 is further disposed between the first output end 180 and the first three-way joint 191, and the second pressure sensor 186 is configured to detect the pressure of the positive pressure gas output by the first output end 180.

As shown in fig. 2, a fourth check valve 253 is further disposed between the second output end 250 and one end of the negative pressure air pump 210, and a fifth check valve 254 is further disposed between the third output end 260 and one end of the negative pressure air pump 210. Optionally, a fourth check valve 253 is further disposed between the first buffer cup 251 and one end of the negative pressure air pump 210, and a fifth check valve 254 is further disposed between the second buffer cup 261 and one end of the negative pressure air pump 210. Optionally, by arranging the fourth check valve 253 on the fifth check valve 254, the negative pressure gas in each path can be controlled to be output, so as to ensure that the negative pressure gas in each path is output.

As shown in fig. 2, the positive pressure gas circuit 100 further includes a filter 112 and a dehumidification pipe 113, one end of the filter 112 is connected to the positive pressure gas pump 110, the other end of the filter 112 is connected to one end of the dehumidification pipe 113, the other end of the dehumidification pipe 113 is connected to the pressure regulating valve 150 and the gas storage device 160, the positive pressure gas output by the positive pressure gas pump 110 can be filtered to remove impurities through the filter 112, the positive pressure gas can be further dried and then output through the dehumidification pipe 113 at any time, so as to prevent the positive pressure gas from blocking a pipeline or preventing impurities from entering the hemocyte diluent storage tank 181, the immunodeficient storage tank 182 and the like to affect a detection result.

As shown in fig. 2, the negative pressure air circuit 200 further includes a noise reduction long tube 211 connected to the negative pressure air pump 210, and optionally, the noise reduction long tube 211 may be disposed at an exhaust port of the negative pressure air pump 210 and may be used to reduce noise of the negative pressure air pump 210. Alternatively, the long tube 211 may be a coil tube 1.5m long.

As shown in fig. 2, the sample analyzer 10 further includes a first silencer 111 and a second silencer 212, wherein the first silencer 111 is disposed at an input end of the positive pressure air pump 110 to reduce noise of the positive pressure air pump 110. The second muffler 212 is disposed at an end of the second relief valve 240 away from the negative pressure air pump 210, and may also be used to further reduce noise of the negative pressure air pump 210.

To sum up, the utility model provides a sample analyzer, on the one hand, come to drive sampling subassembly and/or determine module and/or liquid circuit support assembly and/or built-in liquid storage tank and/or waste liquid treatment component through positive pressure gas circuit and negative pressure gas circuit, can stop a gas circuit and appear damaging and lead to the condition of whole piece sample analyzer, and positive pressure gas circuit and negative pressure gas circuit separately set up, are convenient for overhaul and maintain. On the other hand, the cavity formed by the cooperation of the first gas storage 120 and the first check valve 130 and the cooperation of the second gas storage 220 and the second check valve 230 can accommodate the gas, and the first gas storage 120 and the second gas storage 220 and the cavity having a wider and longer width can homogenize the gas, so that the gas output from the first gas storage 120 and the second gas storage 220 is more stable. And further, compared with the gas storage tank, the first gas storage 120 and the second gas storage 220 have lower cost and are more flexible, and can be bent and placed in the whole sample analyzer 10 without needing a larger independent space to be placed as in the gas storage tank. Further, the structure of the entire sample analyzer can be saved, and on the other hand, by providing an air-absent valve between the pressure regulating valve 150 and the first check valve 130, the positive pressure gas output from the pressure regulating valve 150 is made to be a little empty, and the positive pressure gas output from the pressure regulating valve 150 is made to be more stable.

The above only is the embodiment of the present invention, not limiting the patent scope of the present invention, all the equivalent structures or equivalent processes that are used in the specification and the attached drawings or directly or indirectly applied to other related technical fields are included in the patent protection scope of the present invention.

Claims (17)

1. A sample analyzer, comprising: the device comprises a positive pressure gas circuit, a negative pressure gas circuit, a detection assembly, a liquid circuit supporting assembly and a waste liquid treatment assembly;

the positive pressure gas circuit is used for providing the malleation, the negative pressure gas circuit is used for providing the negative pressure, the malleation with the negative pressure cooperation is used for:

driving the detection assembly to detect the liquid to be detected so as to obtain detection information; and/or

Driving the liquid path support component to provide liquid path support for the detection component; and/or

And driving the waste liquid treatment component to receive the detection waste liquid of the detection component.

2. The sample analyzer as claimed in claim 1, wherein the positive pressure gas path comprises a positive pressure gas pump, a first gas storage and a first one-way valve, one end of the first one-way valve is communicated with the output end of the positive pressure gas pump, the other end of the first one-way valve is communicated with the first gas storage, and the positive pressure gas pump outputs positive pressure gas, so that the first gas storage stores positive pressure gas with a first positive pressure; the negative pressure air circuit comprises a negative pressure air pump, a second air storage and a second one-way valve, one end of the second one-way valve is communicated with the output end of the negative pressure air pump, the other end of the second one-way valve is communicated with the second air storage, and the negative pressure air pump outputs negative pressure air so that the second air storage stores negative pressure air with pressure as first negative pressure.

3. The sample analyzer of claim 2, wherein the fluid circuit support assembly includes a metering pump communicating the first and second gas reservoirs, the metering pump including a diaphragm and a gas chamber and a liquid chamber disposed on opposite sides of the diaphragm, respectively, the positive pressure gas of the first gas reservoir being configured to provide a positive pressure to push the diaphragm to drive toward the liquid chamber, and the negative pressure gas of the second gas reservoir being configured to provide a negative pressure to pull the diaphragm toward the gas chamber.

4. The sample analyzer of claim 2, wherein the first gas reservoir is a first storage conduit and the second gas reservoir is a second storage conduit.

5. The sample analyzer of claim 2,

the positive pressure gas circuit also comprises a first overflow valve, and the first overflow valve is communicated with the output end of the positive pressure gas pump and is used for adjusting the positive pressure gas output by the positive pressure gas pump into a second positive pressure and outputting the second positive pressure;

the negative pressure air path further comprises a second overflow valve, and the second overflow valve is communicated with the output end of the negative pressure air pump and used for adjusting the negative pressure air output by the negative pressure air pump into the first negative pressure and outputting the first negative pressure.

6. The sample analyzer as claimed in claim 5, wherein the positive pressure gas path further comprises a pressure regulating valve disposed between the first overflow valve and the first check valve, the pressure regulating valve being configured to regulate the positive pressure gas at the second positive pressure to the first positive pressure and output the first positive pressure.

7. The sample analyzer as claimed in claim 6, wherein the positive pressure air path further comprises an air-to-air valve disposed between the pressure regulating valve and the first one-way valve for making the positive pressure air output from the pressure regulating valve to be air-to-air in a micro-amount.

8. The sample analyzer as claimed in claim 5, wherein the positive pressure gas path further comprises a gas storage device, which is communicated with the output end of the positive pressure gas pump and is used for storing the positive pressure gas output by the positive pressure gas pump;

when the pressure of the positive pressure gas in the gas storage device is reduced to a first gas pressure threshold value, supplementing gas for the gas storage device through the positive pressure gas pump; and when the pressure of the positive pressure gas in the gas storage device rises to a second gas pressure threshold value, stopping the positive pressure gas pump to supplement the gas for the gas storage device.

9. The sample analyzer of claim 8 wherein the fluid circuit support assembly further comprises a pressure break valve in communication with the gas reservoir, the gas reservoir configured to provide positive pressure to actuate the pressure break valve.

10. The sample analyzer of claim 8, wherein the positive pressure gas circuit further comprises a third one-way valve, one end of the third one-way valve is communicated with the output end of the positive pressure gas pump, the other end of the third one-way valve is communicated with the gas storage device, and the third one-way valve is opened to supplement gas to the gas storage device through the positive pressure gas pump or closed to stop supplement of gas to the gas storage device by the positive pressure gas pump.

11. The sample analyzer of claim 2 further comprising an in-machine reservoir, the positive pressure and the negative pressure cooperating to:

and driving the built-in liquid storage tank to provide detection diluent for the detection assembly.

12. The sample analyzer of claim 11,

the positive pressure gas circuit also comprises a first output end, and the first output end is communicated with one end of the first one-way valve and is used for outputting positive pressure gas with first positive pressure;

the negative pressure air circuit also comprises a second output end and a third output end, and the second output end and the third output end are respectively communicated with one end of the negative pressure air pump and are respectively used for outputting negative pressure air with the first negative pressure;

and a fourth one-way valve is further arranged between the second output end and the negative pressure air pump, and a fifth one-way valve is further arranged between the third output end and the negative pressure air pump.

13. The sample analyzer of claim 12, wherein the detection component comprises an impedance cell for detecting the fluid under test to obtain a blood cell parameter of the fluid under test; and/or

The detection assembly comprises a specific protein reaction tank and a specific protein detection tank, the specific protein reaction tank is used for processing the liquid to be detected to obtain the liquid to be detected, and the specific protein detection tank is used for detecting the liquid to be detected to obtain specific protein parameters of the liquid to be detected.

14. The sample analyzer of claim 13,

the liquid storage tank in the machine comprises a blood cell diluent storage tank, and the detection diluent comprises a first diluent;

the hemocyte diluent storage tank is respectively connected with the first output end and the second output end, positive pressure gas at the first output end is used for providing positive pressure to drive the hemocyte diluent storage tank to discharge first diluent into the impedance pool, and negative pressure gas at the second output end is used for providing negative pressure to drive the hemocyte diluent storage tank to suck the first diluent from the diluent barrel;

the waste liquid treatment component comprises a blood cell waste liquid tank, and the detection waste liquid comprises a first waste liquid;

the blood cell waste liquid tank is connected respectively first output with the second output, the negative pressure gas of second output is used for providing the negative pressure in order to drive the blood cell waste liquid tank acquires the first waste liquid of impedance pond, the positive pressure gas of first output is used for providing the positive pressure in order to drive the blood cell waste liquid tank will first waste liquid is discharged.

15. The sample analyzer of claim 13, wherein the self-contained reservoir comprises an immune diluent storage tank, and the test diluent comprises a second diluent;

the immune diluent storage tank is respectively connected with the first output end and the second output end, positive pressure gas at the first output end is used for providing positive pressure to drive the immune diluent storage tank to discharge second diluent to the specific protein reaction tank, and negative pressure gas at the second output end is used for providing negative pressure to drive the immune diluent storage tank to suck the second diluent from a diluent barrel;

the waste liquid treatment component comprises an immune waste liquid tank, and the detection waste liquid comprises a second waste liquid;

the immune waste liquid tank is respectively connected with the first output end and the third output end, negative pressure gas at the third output end is used for providing negative pressure to drive the immune waste liquid tank to receive second waste liquid from the specific protein reaction tank and/or the specific protein detection tank, and positive pressure gas at the first output end is used for providing positive pressure to drive the immune waste liquid tank to discharge the second waste liquid.

16. The sample analyzer of claim 12, wherein a first buffer cup is disposed between the second output and the negative pressure air pump, and a second buffer cup is disposed between the third output and the negative pressure air pump.

17. The sample analyzer of claim 2 wherein the negative pressure air circuit further comprises a noise reduction elongated tube connected to the negative pressure air pump.

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