CN114167044A - Double-flow-path liquid detection system and blood gas electrolyte analyzer - Google Patents
Double-flow-path liquid detection system and blood gas electrolyte analyzer Download PDFInfo
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- CN114167044A CN114167044A CN202111563499.3A CN202111563499A CN114167044A CN 114167044 A CN114167044 A CN 114167044A CN 202111563499 A CN202111563499 A CN 202111563499A CN 114167044 A CN114167044 A CN 114167044A
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- 238000001514 detection method Methods 0.000 title claims abstract description 99
- 239000007788 liquid Substances 0.000 title claims abstract description 82
- 239000008280 blood Substances 0.000 title claims abstract description 17
- 210000004369 blood Anatomy 0.000 title claims abstract description 17
- 239000003792 electrolyte Substances 0.000 title claims abstract description 13
- 230000007246 mechanism Effects 0.000 claims abstract description 22
- 238000002347 injection Methods 0.000 claims description 46
- 239000007924 injection Substances 0.000 claims description 46
- 238000005070 sampling Methods 0.000 claims description 27
- 238000004140 cleaning Methods 0.000 claims description 26
- 239000003153 chemical reaction reagent Substances 0.000 claims description 24
- 239000000243 solution Substances 0.000 claims description 15
- 238000012360 testing method Methods 0.000 claims description 10
- 238000007789 sealing Methods 0.000 claims description 8
- 238000012423 maintenance Methods 0.000 claims description 5
- 238000005406 washing Methods 0.000 claims description 4
- 239000012530 fluid Substances 0.000 claims 5
- 230000009977 dual effect Effects 0.000 claims 4
- 230000000694 effects Effects 0.000 abstract description 4
- 239000000523 sample Substances 0.000 description 65
- 238000010586 diagram Methods 0.000 description 4
- 239000002699 waste material Substances 0.000 description 4
- 238000005259 measurement Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000012482 calibration solution Substances 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 239000013068 control sample Substances 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000004868 gas analysis Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 210000002966 serum Anatomy 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/48—Biological material, e.g. blood, urine; Haemocytometers
- G01N33/483—Physical analysis of biological material
- G01N33/487—Physical analysis of biological material of liquid biological material
- G01N33/48707—Physical analysis of biological material of liquid biological material by electrical means
Abstract
The invention discloses a double-flow-path liquid detection system and a blood gas electrolyte analyzer, wherein the double-flow-path liquid detection system comprises a main flow path, an auxiliary flow path and a sample introduction system, a first liquid level detection sensor, an insensitive sensor, a second liquid level detection sensor and a pump M1 which are sequentially connected in series on the main flow path, an electromagnetic valve V11, a sensitive sensor and a pump M2 which are sequentially connected in series on the auxiliary flow path, the input end of the main flow path is connected with the output end of the sample introduction system, the input end of the electromagnetic valve V11 is connected between the second liquid level detection sensor and the pump M1, the output ends of the main flow path and the auxiliary flow path are connected with a second kit, and the sample introduction system comprises a bracket, a stepping motor, a zero position detection mechanism, a track disc, a driving disc, a sample introduction needle and a needle frame. The invention improves the liquid detection efficiency and detection quality, improves the use effect of the sensor, prolongs the service life of the sensor and can avoid the problem of false detection caused by excessive sensors.
Description
Technical Field
The invention relates to the technical field of blood gas electrolyte analyzers, in particular to a double-flow-path liquid detection system and a blood gas electrolyte analyzer.
Background
At present, the performance of the domestic blood gas electrolyte analyzer tends to be stable, and the flow path design is more and more mature. The flow path of the blood gas electrolyte analyzer is generally a single flow path system, in which a sample injection system, a sensor module, reagents (measurement reagent, cleaning solution, waste liquid), a pump, and the like are connected in series on the flow path.
When a single-flow-path system is used for sample measurement, cleaning or maintenance, reagents must pass through each sensor, and the testing accuracy and the service life of the sensors are seriously influenced by the partially sensitive sensors after the sensors are washed by the reagents.
Moreover, the existing sample introduction systems are various in types, and are basically divided into two categories, namely manual sample introduction and full-automatic sample introduction, and some instruments for measuring serum or venous blood samples have a large sample amount and relatively long effective time of the samples, so that automatic sample introduction including an automatic sample introduction disc is mostly used; in the subdivided field of blood gas analysis, arterial blood is collected and analyzed immediately (as soon as possible), so manual sampling is often used. A plurality of sensors are required to be installed for manual sample introduction, and the manual sample introduction requirements are met for sample introduction of a common injector and sample introduction of a capillary blood collection tube. Because the sensors are more and the positions are very close, the instrument may have wrong detection and bad experience.
Disclosure of Invention
The invention mainly aims to provide a double-flow-path liquid detection system and a blood gas electrolyte analyzer, aiming at improving the liquid detection efficiency and detection quality, improving the use effect of a sensor, prolonging the service life of the sensor and avoiding the problem of false detection caused by excessive sensors.
In order to achieve the above object, the present invention provides a dual-flow-path liquid detection system, which includes a main flow path, a secondary flow path, a sample injection system, a first liquid level detection sensor, an insensitive sensor, a second liquid level detection sensor, a pump M1, a solenoid valve V11, a sensitive sensor, a pump M2, a first reagent kit, and a second reagent kit;
the first liquid level detection sensor, the insensitive sensor, the second liquid level detection sensor and the pump M1 are sequentially connected in series on the main flow path, the input end of the main flow path is connected with the output end of the sample injection system, the electromagnetic valve V11, the sensitive sensor and the pump M2 are sequentially connected in series on the auxiliary flow path, the input end of the electromagnetic valve V11 is connected between the second liquid level detection sensor and the pump M1, the output ends of the main flow path and the auxiliary flow path are connected with the second reagent kit, and the second reagent kit and the first reagent kit are sequentially connected in series between the output ends of the main flow path and the auxiliary flow path and the input end of the sample injection system;
the sample injection system comprises a support, a stepping motor, a zero position detection mechanism, a track disc, a driving disc, a sample injection needle and a needle frame, wherein the stepping motor is arranged on the support, the zero position detection mechanism is arranged at one end of the stepping motor, the track disc is arranged on the support and is positioned at the other end of the stepping motor, the driving disc is arranged on the track disc and is linked with the stepping motor, the upper end of the sample injection needle is rotatably arranged on the track disc, the lower end of the sample injection needle is telescopically arranged in the needle frame, and the upper end of the needle frame is rotatably connected with the driving disc; the zero position detection mechanism comprises a zero position detection sensor and a detection coded disc, wherein the zero position detector is arranged on the bracket, and the detection coded disc is connected with an output shaft of the stepping motor;
when the stepping motor moves, the driving disc is driven to move along the periphery of the track disc, and the driving disc drives the needle frame to move around the upper end of the sampling needle, so that the sampling needle extends out of or retracts into the needle frame, and the angle of the sampling needle is adjusted.
The invention further adopts the technical scheme that the sample injection needle is 7-shaped, and the upper end of the sample injection needle is rotatably arranged on the track disc through a rotating shaft.
According to a further technical scheme, a sliding groove is formed in the needle frame, and the rotating shaft is arranged in the sliding groove.
According to a further technical scheme, two ends of the track disc are provided with limiting grooves used for limiting the rotation range of the driving disc.
According to the further technical scheme, a cleaning mechanism for cleaning the sample injection needle is arranged at the lower end of the needle frame; the cleaning mechanism includes: and the sealing ring and the wiping nozzle are arranged in the needle frame and form a sealing cavity.
The invention further adopts the technical scheme that in the initial state, the sensitive sensor is internally provided with maintenance liquid.
According to a further technical scheme, the second kit is filled with GL cleaning solution and provided with an electromagnetic valve V4 for controlling the GL cleaning solution to enter a flow path.
The technical scheme is that the second kit is filled with M cleaning solution, and the second kit is provided with an electromagnetic valve V10 for controlling the M cleaning solution to enter the flow path.
The invention further adopts the technical scheme that the double-flow-path liquid detection system further comprises a controller connected with the sample feeding system, the first liquid level detection sensor, the insensitive sensor, the second liquid level detection sensor, the pump M1, the electromagnetic valve V11, the sensitive sensor, the pump M2, the electromagnetic valve V4 and the electromagnetic valve V10.
In order to achieve the above object, the present invention further provides a blood gas electrolyte analyzer, which includes the dual-flow-path liquid detection system as described above.
The double-flow-path liquid detection system and the blood gas electrolyte analyzer have the beneficial effects that: according to the technical scheme, the liquid detection efficiency and the detection quality are improved, the using effect of the sensor is improved, the service life of the sensor is prolonged, and the problem of false detection caused by excessive sensors can be avoided.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, 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 according to the structures shown in the drawings without creative efforts.
FIG. 1 is a schematic overall structure diagram of a preferred embodiment of the dual-flow liquid detection system of the present invention;
FIG. 2 is a schematic diagram of the overall structure of the sample injection system;
FIG. 3 is a schematic view of the structure of the cleaning mechanism;
FIG. 4 is a schematic view of another angle of the sample injection system;
FIG. 5 is a schematic diagram of the operating principle of the dual-flow liquid detection system of the present invention.
The reference numbers illustrate:
a bracket 1; a stepping motor 2; a track disk 3; a drive plate 4; a sample injection needle 5; a needle frame 6; a zero detection sensor 7; detecting a coded disc 8; a seal ring 9; the nozzle 10 is wiped.
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Considering that reagents must pass through each sensor when a single-flow-path system in the existing blood gas electrolyte analyzer is used for sample measurement, cleaning or maintenance, the test accuracy and the service life of the sensors are seriously influenced after part of sensitive sensors are washed by the reagents, and the existing sample injection system has more sensors which are close in position and possibly have false detection, the invention provides a solution.
Specifically, as shown in fig. 1, a preferred embodiment of the dual-flow-path liquid detection system of the present invention includes a main flow path, a secondary flow path, a sample injection system, a first liquid level detection sensor, an insensitive sensor, a second liquid level detection sensor, a pump M1, a solenoid valve V11, a sensitive sensor, a pump M2, a first reagent kit, and a second reagent kit.
The first liquid level detection sensor, the insensitive sensor, the second liquid level detection sensor and the pump M1 are sequentially connected in series on the main flow path, the input end of the main flow path is connected with the output end of the sample injection system, the electromagnetic valve V11, the sensitive sensor and the pump M2 are sequentially connected in series on the auxiliary flow path, the input end of the electromagnetic valve V11 is connected between the second liquid level detection sensor and the pump M1, the output ends of the main flow path and the auxiliary flow path are connected with the second kit, the second kit and the first kit are sequentially connected in series between the output end of the main flow path and the output end of the auxiliary flow path and the input end of the sample injection system.
As shown in fig. 2 to 4, the sampling system includes support 1, step motor 2, zero position detection mechanism, track disc 3, driving disc 4, syringe needle 5 and needle frame 6, wherein, step motor 2 install in on the support 1, zero position detection mechanism install in step motor 2's one end, track disc 3 install in on the support 1, be located step motor 2's the other end, driving disc 4 install in on the track disc 3, with step motor 2 linkage, the upper end of syringe needle 5 rotate install in on the track disc 3, the lower extreme is scalable install in needle frame 6, the upper end of needle frame 6 with driving disc 4 rotates and connects.
The zero position detection mechanism comprises a zero position detection sensor 7 and a detection coded disc 8, wherein the zero position detector is mounted on the support 1, and the detection coded disc 8 is connected with an output shaft of the stepping motor 2.
When the stepping motor 2 moves, the driving disc 4 is driven to move along the periphery of the track disc 3, and the driving disc 4 drives the needle frame 6 to move around the upper end of the sample injection needle 5, so that the sample injection needle 5 extends out of or retracts into the needle frame 6, and the angle of the sample injection needle 5 is adjusted.
In this embodiment, the stepping motor 2 is a power source of the whole sampling mechanism, the track disc 3 is used for limiting the rotation range of the driving disc 4, the driving disc 4 is used for driving the needle frame 6 and the sampling needle 5 to move, and the sampling needle 5 is used for sucking a sample.
In this embodiment, the driving disk 4 and the stepping motor 2 may be connected by a coupling.
It should be noted that, in this embodiment, the semi-automatic means that the sampling mechanism cannot automatically identify whether a sample exists, and needs to be manually operated according to an operation interface, for example, when a sample needs to be measured, a test is clicked on an instrument interface, at this time, the sampling mechanism will automatically extend the sampling needle for sample suction, and after the sample is removed according to a system prompt, the sampling mechanism will automatically return to the original position.
Compared with the prior art, the embodiment only uses one zero position detection sensor 7 to match with the high-precision detection coded disc 8, so that the problem of error detection of more sensors can be effectively avoided, and switching of different sample types (for example, capillary vessels need horizontal sampling) can be realized through control of the stepping motor 2. The whole process only needs to click the corresponding sample type on an operation interface, the stepping motor 2 can drive the sample injection needle 5 to automatically move to a preset position to prepare for sample absorption, the whole process is simple and reliable in operation, in addition, the system does not need manual operation when automatically maintaining an instrument flow path, and the automatic control sample injection mechanism can be used for realizing.
Further, in this embodiment, the injection needle 5 is "7" font, the upper end of injection needle 5 through the pivot rotate install in on the track dish 3.
A sliding groove is formed in the needle frame 6, and the rotating shaft is arranged in the sliding groove. When the driving disc 4 drives the needle frame 6 to move, the needle frame 6 moves up and down and moves in an arc shape around the rotating shaft simultaneously.
And two ends of the track disc 3 are provided with limiting grooves for limiting the rotation range of the driving disc 4. Fig. 1 is a schematic diagram of the position state of the needle holder 6 in the initial position (zero position), the driving disk 4 can rotate 180 ° clockwise around the track disk 3, the needle holder 6 is driven to move during the rotation process so that the sample injection needle 5 automatically extends for sampling, and when the needle holder 6 rotates counterclockwise, the sample injection needle 5 retracts into the needle holder 6.
It can be understood that, for switching different sample types, the present invention has a starting position (i.e. zero position), from which the stepper motor 2 rotates clockwise by a certain angle (e.g. 90 °) to position the injector sample injection position, and the stepper motor 2 rotates clockwise by 180 ° from the starting position to position the capillary sample injection position (horizontal sample injection is required due to the specificity of the capillary).
Further, in this embodiment, the lower end of the needle holder 6 is provided with a cleaning mechanism for cleaning the injection needle 5.
Wherein, wiper mechanism includes: and the sealing ring 9 and the wiping nozzle 10 are arranged in the needle frame 6, and the sealing ring 9 and the wiping nozzle 10 form a sealed cavity.
Specifically, in this embodiment, the sealing ring 9 and the wiping nozzle 10 are both sealed with the outer wall of the sampling needle 5, and a sealing cavity is formed therebetween. When the sample injection needle 5 is at the position shown in fig. 2, the needle port of the sample injection needle 5 is communicated with the port A, the calibration solution and the cleaning solution are sucked from the port A, and the inner wall of the sample injection needle 5 is cleaned at the moment; and the port B is a sample suction port, when the sampling needle 5 extends out to suck samples, a small amount of sample needles are stuck on the outer wall of the sampling needle 5 to retreat, and the wiping nozzle 10 scratches and rubs off the samples on the outer wall of the sampling needle 5.
In this embodiment, in the initial state, the sensitive sensor is filled with the maintenance liquid. The first kit is provided with a calibration solution.
In this embodiment, the second reagent kit contains a GL cleaning solution, and the second reagent kit is provided with an electromagnetic valve V4 for controlling the GL cleaning solution to enter the flow path.
In this embodiment, the second reagent kit contains M washing solutions, and the second reagent kit is provided with an electromagnetic valve V10 for controlling the flow path of the M washing solutions.
In this embodiment, the dual-flow-path liquid detection system further includes a controller connected to the sample injection system, the first liquid level detection sensor, the insensitive sensor, the second liquid level detection sensor, the pump M1, the solenoid valve V11, the sensitive sensor, the pump M2, the solenoid valve V4, and the solenoid valve V10.
It is understood that, in this embodiment, a waste liquid box is provided in the second reagent box.
The working principle of the double-flow-path liquid detection system of the embodiment is as follows:
when a whole test project needs to be performed on the liquid to be tested, the electromagnetic valve V11 is controlled to be opened, the main flow path and the auxiliary flow path are communicated, the pump M2 is started, the liquid to be tested is sucked into the insensitive sensor and the sensitive sensor by the sample introduction system for testing, and the waste liquid enters the waste liquid box after the test is completed.
When the parameters of the insensitive part need to be tested, the electromagnetic valve V11 is controlled to close the secondary flow path, the pump M1 is started, and the liquid to be tested is sucked for detection.
When the main flow path and the secondary flow path need to be maintained, the main flow path and the secondary flow path, the insensitive sensor and the sensitive sensor are maintained by matching according to the performance of the reagent and the characteristics of the sensor.
When the liquid sample to be detected is small in amount and needs to be tested in a whole project, the main flow path project test can be carried out, the electromagnetic valve V11 is controlled to be opened after the test is finished, the main flow path and the secondary flow path are conducted, and the liquid to be detected is pumped to the secondary flow path to test parameters.
The working principle of the dual-flow-path liquid detection system of the present invention is further described in detail with reference to fig. 1 to 5.
The first step is as follows: in fig. 1, the sampling needle of the sample injection system is lifted, and the operator moves the sample to the sampling needle.
The second step is that: the pump M1 in fig. 1 starts to rotate to suck the sample, and when the sample reaches the first liquid level detection sensor (i.e., the first liquid level detection sensor) in fig. 1, the sample suction is stopped, the operator removes the sample, and the sampling needle returns to the original position.
The third step: the pump M1 in fig. 1 rotates again, the second liquid level detection sensor (i.e. the second liquid level detection sensor) and the first liquid level detection sensor in fig. 1 start to synchronously detect whether liquid exists in the flow path, when the second liquid level detection sensor and the first liquid level detection sensor in fig. 1 continuously detect liquid, the pump M1 in fig. 1 stops rotating, otherwise, the pump M1 in fig. 1 stops all the time, at this time, the whole liquid detection is judged to be failed, and sampling needs to be performed again.
The fourth step: when the detection in fig. 1 is successful, the insensitive sensor in fig. 1 starts to acquire signals, and when a certain condition is met, the signal acquisition is finished. It should be noted that the "certain condition" means that the signal collected by the insensitive sensor is stable.
The fifth step: after the insensitive sensor in fig. 1 finishes acquiring the signal, the sensitive sensor in fig. 1 starts to acquire the signal, and stops acquiring the signal after the acquired signal reaches a certain condition.
And a sixth step: the pump M2 in fig. 1 starts to rotate to evacuate the liquid from the sensitive sensor in fig. 1, and then the pinch valve V11 in fig. 1 is opened and the pump M2 in fig. 1 starts to rotate a certain number of steps to evacuate the sample from the insensitive sensor in fig. 1 to the sensitive sensor in fig. 1.
The seventh step: when the liquid reaches the sensitive sensor in fig. 1, the sensitive sensor in fig. 1 starts to collect a sample signal, and when the collected signal reaches a certain condition, the sampling is stopped.
Eighth step: after the sampling is completed, the flow path cleaning is started, the pinch valve V11 in fig. 1 is closed, the electromagnetic valve V4 in fig. 1 is opened, GL cleaning liquid is pumped to clean the flow path, the pinch valve V11 in fig. 1 is opened after the pumped cleaning liquid reaches the insensitive sensor, and then the pump M2 in fig. 1 is started to rotate, and the GL cleaning liquid is pumped to the sensitive sensor to clean the flow path.
The ninth step: when the eighth step is repeated, the electromagnetic valve V4 and the pinch valve V11 in FIG. 1 are closed, then the electromagnetic valve V10 in FIG. 1 is opened, the pump M1 in FIG. 1 rotates to pump M cleaning liquid to clean the insensitive sensor in FIG. 1, and after repeating the steps for several times, the whole action is finished.
The double-flow-path liquid detection system has the beneficial effects that: according to the technical scheme, the liquid detection efficiency and the detection quality are improved, the using effect of the sensor is improved, the service life of the sensor is prolonged, and the problem of false detection caused by excessive sensors can be avoided.
In order to achieve the above object, the present invention further provides a blood gas electrolyte analyzer, which includes the dual-flow-path liquid detection system according to the above embodiment, and the structure and the operation principle of the dual-flow-path liquid detection system have been described in detail above, and are not described herein again.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (10)
1. A double-flow-path liquid detection system is characterized by comprising a main flow path, an auxiliary flow path, a sample introduction system, a first liquid level detection sensor, an insensitive sensor, a second liquid level detection sensor, a pump M1, an electromagnetic valve V11, a sensitive sensor, a pump M2, a first kit and a second kit;
the first liquid level detection sensor, the insensitive sensor, the second liquid level detection sensor and the pump M1 are sequentially connected in series on the main flow path, the input end of the main flow path is connected with the output end of the sample injection system, the electromagnetic valve V11, the sensitive sensor and the pump M2 are sequentially connected in series on the auxiliary flow path, the input end of the electromagnetic valve V11 is connected between the second liquid level detection sensor and the pump M1, the output ends of the main flow path and the auxiliary flow path are connected with the second reagent kit, and the second reagent kit and the first reagent kit are sequentially connected in series between the output ends of the main flow path and the auxiliary flow path and the input end of the sample injection system;
the sample injection system comprises a support, a stepping motor, a zero position detection mechanism, a track disc, a driving disc, a sample injection needle and a needle frame, wherein the stepping motor is arranged on the support, the zero position detection mechanism is arranged at one end of the stepping motor, the track disc is arranged on the support and is positioned at the other end of the stepping motor, the driving disc is arranged on the track disc and is linked with the stepping motor, the upper end of the sample injection needle is rotatably arranged on the track disc, the lower end of the sample injection needle is telescopically arranged in the needle frame, and the upper end of the needle frame is rotatably connected with the driving disc; the zero position detection mechanism comprises a zero position detection sensor and a detection coded disc, wherein the zero position detector is arranged on the bracket, and the detection coded disc is connected with an output shaft of the stepping motor;
when the stepping motor moves, the driving disc is driven to move along the periphery of the track disc, and the driving disc drives the needle frame to move around the upper end of the sampling needle, so that the sampling needle extends out of or retracts into the needle frame, and the angle of the sampling needle is adjusted.
2. The dual-flow liquid detection system of claim 1, wherein the sample injection needle is 7-shaped, and the upper end of the sample injection needle is rotatably mounted on the track disc through a rotating shaft.
3. The dual flow path liquid detection system of claim 2, wherein a chute is disposed on the needle carriage, and the shaft is disposed in the chute.
4. The dual flow liquid detection system of claim 1, wherein both ends of the orbital disc are provided with a limit groove for limiting the range of rotation of the drive disc.
5. The dual-flow liquid detection system of claim 1, wherein the lower end of the needle holder is provided with a cleaning mechanism for cleaning the sample injection needle; the cleaning mechanism includes: and the sealing ring and the wiping nozzle are arranged in the needle frame and form a sealing cavity.
6. The dual flow fluid testing system of claim 1, wherein said sensor is initially filled with a maintenance fluid.
7. The dual-flow-path liquid detection system according to claim 1, wherein the second kit contains a GL cleaning solution, and the second kit is provided with a solenoid valve V4 for controlling the GL cleaning solution to enter the flow path.
8. The dual-flow liquid detection system according to claim 7, wherein the second reagent kit contains M washing liquid, and the second reagent kit is provided with a solenoid valve V10 for controlling the M washing liquid to enter the flow path.
9. The dual fluid flow detection system of claim 8, further comprising a controller connected to the sample injection system, the first fluid level detection sensor, the insensitive sensor, the second fluid level detection sensor, the pump M1, the solenoid valve V11, the sensitive sensor, the pump M2, the solenoid valve V4, and the solenoid valve V10.
10. A blood gas electrolyte analyzer, characterized in that it comprises a dual-flow liquid detection system according to any of claims 1 to 9.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111563499.3A CN114167044A (en) | 2021-12-20 | 2021-12-20 | Double-flow-path liquid detection system and blood gas electrolyte analyzer |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111563499.3A CN114167044A (en) | 2021-12-20 | 2021-12-20 | Double-flow-path liquid detection system and blood gas electrolyte analyzer |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024027496A1 (en) * | 2022-07-31 | 2024-02-08 | 深圳市理邦精密仪器股份有限公司 | Kit, measurement assembly, and blood gas analysis device |
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| CN217084982U (en) * | 2021-12-20 | 2022-07-29 | 梅州康立高科技有限公司 | Double-flow-path liquid detection system and blood gas electrolyte analyzer |
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2021
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US4399362A (en) * | 1981-02-27 | 1983-08-16 | Instrumentation Laboratory Inc. | Liquid handling apparatus |
| JPS61200473A (en) * | 1986-01-31 | 1986-09-05 | Hitachi Ltd | Method for analyzing flow of liquid specimen |
| US20200011770A1 (en) * | 2017-06-21 | 2020-01-09 | Fujian Kelungde Env. Tech. Co., Ltd | Water quality analyzer and method for analyzing water quality |
| RU185929U1 (en) * | 2018-08-07 | 2018-12-25 | Публичное акционерное общество "КАМАЗ" | OIL FILTER TEST STAND |
| CN217084982U (en) * | 2021-12-20 | 2022-07-29 | 梅州康立高科技有限公司 | Double-flow-path liquid detection system and blood gas electrolyte analyzer |
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| WO2024027496A1 (en) * | 2022-07-31 | 2024-02-08 | 深圳市理邦精密仪器股份有限公司 | Kit, measurement assembly, and blood gas analysis device |
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