CN116148484A - Test tube detection assembly, sample analyzer and sample analysis system - Google Patents

Abstract

The invention discloses a test tube detection assembly, a sample analyzer and a sample analysis system, wherein the test tube detection assembly comprises a first test tube rack, a second test tube rack, a magnetic part and a first sensor, the first test tube rack is used for placing a first type of test tube, the second test tube rack is used for placing a second type of test tube, the first sensor is arranged on a sample injection track of the sample analyzer, the magnetic part is arranged on one of the first test tube rack and the second test tube rack, the magnetic field of the first test tube rack or the second test tube rack provided with the magnetic part changes when moving along the sample injection track, the magnetic field of the first test tube rack or the second test tube rack not provided with the magnetic part does not change when moving along the sample injection track, and the first sensor generates a signal according to whether the magnetic field changes to judge the first test tube rack or the second test tube rack.

Description

Test tube detection assembly, sample analyzer and sample analysis system

Technical Field

The present invention relates to the field of sample detection technology, and in particular, to a test tube detection assembly, a sample analyzer, and a sample analysis system.

Background

The physiological and pathological changes of the human body often cause the changes of blood components, and the detection and analysis of blood samples can provide basis for diagnosis and treatment of diseases. Usually, the blood sample is stored in a test tube in a sealing way after being collected, the types of the test tubes in which the blood samples collected at different positions of a human body are stored are different, for example, the collected amount of venous blood is more, and the blood sample is stored in a common test tube; the peripheral blood is collected in a small amount and stored in a micro-tube. In the detection of a blood sample, the mixing mode adopted, the puncture sampling height of a sampling needle, and the like are different according to the types of test tubes, so that the types of the test tubes need to be identified before the detection. Most of the existing detecting instruments are used for identifying the types of test tubes by reading bar codes on the test tubes, but the bar codes can fall off or be blocked by a test tube rack to cause false identification, so that the sample detection is affected.

Disclosure of Invention

In view of the above, a cuvette detecting unit capable of accurately identifying the type of cuvette, a sample analyzer using the cuvette detecting unit, and a sample analyzing system are provided.

The utility model provides a test tube detection subassembly, is applied to sample analyzer, include first test-tube rack, second test-tube rack, magnetic part and with magnetic part matched with first inductor, first test-tube rack is used for placing first type test tube, the second test-tube rack is used for placing second type test tube, first inductor sets up on sample analyzer's advance appearance track, magnetic part set up in on one of first test-tube rack and second test-tube rack, be provided with first test-tube rack or the second test-tube rack of magnetic part along advance appearance track when moving the magnetic field change, do not set up first test-tube rack or the second test-tube rack of magnetic part along advance appearance track when moving the magnetic field does not change, first inductor produces the signal in order to judge whether first test-tube rack or second test-tube rack according to the change of magnetic field, through distinguishing first test-tube rack and second test-tube rack discernment first type test tube and second type test tube.

Further, the first type of test tube is a normal test tube for collecting venous blood, and the second type of test tube is a micro test tube for collecting peripheral blood; and in the sample injection process of the sample analyzer, allowing the first test tube rack and the second test tube rack to be simultaneously positioned on the sample injection track.

Further, a test tube detection position and a test tube mixing position are arranged on the sample injection track, the test tube detection position is arranged before the test tube mixing position, and the first sensor is arranged corresponding to the test tube detection position.

Further, a label identification position is further arranged on the sample injection track, the label identification position is arranged before the test tube mixing position, and the test tube detection position is arranged before or after the label identification position.

Further, a label identification position is further arranged on the sample injection track, the label identification position is arranged before the test tube mixing position, and the test tube detection position and the label identification position are arranged at the same position of the sample injection track.

Further, the tag identification position is provided with a code scanner, and the code scanner and the first sensor are respectively positioned at two opposite sides of the sample injection track; or the code scanner and the first sensor are positioned on the same side of the sample injection track and are arranged up and down.

Further, the first inductor is located at the bottom of the sample injection track, and when the first test tube rack or the second test tube rack provided with the magnetic piece moves through the test tube detection position along the sample injection track, the first inductor is located below the magnetic piece.

Further, the device further comprises a first visual sensor arranged on the sample injection track, the first test tube rack and the second test tube rack are different in color, and the first visual sensor generates different signals according to the different colors of the first test tube rack and the second test tube rack.

Further, the first sensor is a Hall sensor, the second sensor is a visual sensor, and the visual sensor and the Hall sensor are respectively positioned at two opposite sides of the sample injection track; or the visual sensor and the Hall sensor are positioned on the same side of the sample injection track and are arranged up and down.

The sample analyzer comprises a sample injection assembly, a mixing assembly, a sampling assembly, a controller and a test tube detection assembly, wherein the test tube detection assembly is connected with the mixing assembly through the controller, the mixing assembly comprises a first mixing assembly and a second mixing assembly, the first mixing assembly and the second mixing assembly perform mixing operation in different modes, and the controller starts the first mixing assembly to perform mixing operation according to signals of the first sensor when the first test tube rack moves along the sample injection track; the controller starts the second mixing assembly to carry out mixing operation according to the signal of the first sensor when the second test tube rack moves along the sample injection track.

Further, the test tube detection assembly is connected with the sampling assembly through the controller, and when the controller judges that the test tube is the first test tube rack according to the signal of the first sensor, the controller controls the sampling needle of the sampling assembly to descend by a first height; and when judging that the sampling needle is at the second height, controlling the sampling needle of the sampling assembly to descend at the second height, wherein the second height is different from the first height.

Further, the sampling needle moves above the sampling track, and the first type test tube/second type test tube subjected to uniform mixing by the uniform mixing assembly performs puncture sampling on the first type test tube rack/second type test tube rack; or the sampling needle is positioned in the sample analyzer, the first type test tube/the second type test tube which are uniformly mixed by the uniformly mixing assembly are transferred to a sampling position for puncture sampling, and then are put back into the first type test tube rack/the second type test tube rack.

The utility model provides a sample analysis system, includes two at least sample analyzers of cascade, two at least sample analyzers of cascade's sample track intercommunication each other constitutes a transfer path, the both ends of transfer path set up test-tube rack loading platform and test-tube rack uninstallation platform respectively, two at least sample analyzers of cascade share same test tube detection subassembly, test tube detection subassembly is located the transfer path is provided with the one end of test-tube rack loading platform.

Compared with the prior art, the test tube type identification device has the advantages that whether the magnetic piece is arranged on the test tube rack of different types is matched with the first sensor to identify the test tube rack type, so that the test tube type is identified, the whole structure is simple, the judgment is accurate, the smooth proceeding of the subsequent sample detection is ensured, and the test tube type identification device is applicable to the test tube type identification in different types of sample injection processes such as single instrument, double instrument and multiple instrument cascading pipelines.

Drawings

FIG. 1 is a schematic diagram of a sample analyzer according to an embodiment of the present invention.

Fig. 2 is a top view of the sample analyzer of fig. 1.

FIG. 3 is a schematic view of an embodiment of a cuvette detection assembly of a sample analyzer according to the present invention.

Fig. 4 is a schematic view of a first tube rack of the tube testing assembly of fig. 3.

Fig. 5 is a schematic view of a second tube rack of the tube testing assembly of fig. 3.

FIG. 6 is a schematic diagram of a second embodiment of a cuvette detection assembly.

Fig. 7 is a schematic view of a second tube rack of the tube testing assembly of fig. 6.

Fig. 8 is a schematic diagram of another embodiment of the second rack.

FIG. 9 is a schematic view of a third embodiment of a cuvette testing assembly.

FIG. 10 is a schematic view of a fourth embodiment of a cuvette testing assembly.

FIG. 11 is a schematic diagram of an embodiment of a sample analysis system according to the present invention.

Detailed Description

In order that the invention may be readily understood, a more complete description of the invention will be rendered by reference to the appended drawings. One or more embodiments of the present invention are illustrated in the accompanying drawings to provide a more accurate and thorough understanding of the disclosed subject matter. It should be understood, however, that the present invention may be embodied in many different forms and should not be construed as being limited to the embodiments set forth herein.

The same or similar reference numbers in the drawings correspond to the same or similar components; in the description of the present invention, it should be understood that, if there is an azimuth or positional relationship indicated by terms such as "upper", "lower", "left", "right", etc., based on the azimuth or positional relationship shown in the drawings, it is only for convenience of describing the present invention and simplifying the description, but it is not indicated or implied that the apparatus or element referred to must have a specific azimuth, be constructed and operated in a specific azimuth, and thus terms describing the positional relationship in the drawings are merely illustrative and should not be construed as limitations of the present patent, and specific meanings of the terms described above may be understood by those skilled in the art according to specific circumstances.

The invention provides a sample analyzer for detecting and analyzing biological samples, in particular blood samples. Fig. 1-2 illustrate an embodiment of a sample analyzer according to the present invention, wherein a sample analyzer 100 includes a sample introduction assembly 10, a tube detection assembly 30, a mixing assembly, a sampling assembly, a sample detection assembly, and the like.

The sample injection assembly 10 is disposed outside the housing 20 of the sample analyzer 100 and includes a sample injection track 12, and a test tube 50 containing a blood sample to be tested moves along the sample injection track 12 to a test tube mixing position or a puncture position of the sample analyzer 100. In the detection of blood samples, the test tubes 50 used generally include two types, a plain test tube 50a and a micro test tube 50b, wherein the plain test tube 50a is used for containing a relatively large amount of venous blood to be collected; the micro tube 50b is used to hold a relatively small amount of peripheral blood. The micro-test tube 50b is much smaller in height and volume than the conventional test tube 50 a. Each test tube 50a, 50b is provided with a label provided with a two-dimensional code, a bar code, or the like at a position near the top end thereof. The sample introduction track 12 is provided with a code scanner 40, and the code scanner 40 scans labels to identify two-dimensional codes and bar codes, so that test tube type information and corresponding personnel information including names, ages, contact ways and the like are obtained.

As shown in fig. 3 to 5, the tube rack 52 is divided into two types of a first tube rack 52a and a second tube rack 52b, the first tube rack 52a is used for placing a first type of test tube, and the second tube rack 52b is used for placing a second type of test tube, in this embodiment, a normal test tube 50a for collecting venous blood, and the second type of test tube is a micro test tube 50b for collecting peripheral blood. Of course, in other embodiments, the first tube rack 52a may be used to mount the second type of tube, and the second tube rack 52b may be used to mount the first type of tube, so long as the same tube rack is satisfied that the same type of tube is mounted. The first tube rack 52a and the second tube rack 52b have substantially the same structure, the first tube rack 52a forms a plurality of first hole sites 54a for accommodating and positioning the normal test tubes 50a, and the second tube rack 52b forms a plurality of second hole sites 54b for accommodating and positioning the micro test tubes 50b. The first and second apertures 54a, 54b may be sized differently depending on the different sizes of the plain tube 50a and the micro tube 50b. Typically, the bottom ends of the plain tube 50a and the micro tube 50b are lower than the bottom ends of the micro tube 50b when placed in the respective racks 52a, 52b. Preferably, each aperture 54a, 54b includes an open side 56a, 56b, such that when the test tube 50a, 50b is placed, the label on the test tube 50a, 50b is aligned with the open side 56a, 56b of the corresponding aperture 54a, 54b, such that the label on the test tube 50a, 50b is exposed, facilitating label identification by the scanner 40.

The cuvette detecting assembly 30 includes a magnetic member 32 and a first sensor 34 coupled to the magnetic member 32. The magnetic member 32 is disposed on one of the first tube rack 52a and the second tube rack 52b, and in this embodiment is disposed on the second tube rack 52b. The first sensor 34 is a Hall sensor, and generates a signal when a magnetic field is sensed, thereby distinguishing the first tube rack 52a from the second tube rack 52b, that is, distinguishing the normal test tube 50a from the micro test tube 50b. In one embodiment, the first sensor 34 is disposed on the sample injection track 12, and when the first test tube rack 52a moves along the sample injection track 12 and passes the position of the first sensor 34, the first sensor 34 does not sense the change of the magnetic field; when the second test tube rack 52b moves along the sample introduction rail 12 and passes the position of the first sensor 34, the magnetic field changes due to the movement of the magnetic member 32, and the first sensor 34 generates a signal accordingly.

Preferably, the sample analyzer further comprises a controller, the first sensor 34 is connected with the mixing assembly, the sampling assembly and the like through the controller, and the controller receives the signal of the first sensor 34 and determines whether the sample analyzer is a common test tube 50a or a micro test tube 50b according to the signal, so as to generate corresponding control signals to control the operation of the mixing assembly and the sampling assembly.

The mixing assembly generally comprises a first mixing assembly and a second mixing assembly, wherein the first mixing assembly performs mixing operation in a swinging, rotating, reversing and other modes, and the second mixing assembly performs mixing operation in a vibrating and other modes. In contrast, the amount of venous blood in the common test tube 50a is large, and the venous blood can be quickly mixed by the first mixing component; the amount of peripheral blood in the micro-tube 50b is small, and a small amount of blood sample can be quickly mixed by the second mixing assembly in a vibration mode, so that the cell morphology in the blood is not damaged sufficiently, and the accuracy of blood detection can be ensured. When the first sensor 34 senses the magnetic element 32 to generate a signal to the controller, the controller determines the micro-test tube 50b and activates the second blending assembly; otherwise the controller determines that it is a normal tube 50a and activates the first mixing assembly.

The uniformly mixed test tubes 50a and 50b are conveyed to a sampling position, and a sampling needle of the sampling assembly performs puncture sampling at the sampling position. For a normal test tube 50a, the sampling needle is lowered by a first height H1; for the micro-test tube 50b, the sampling needle descends to a second height H2, wherein the first height H1 is greater than the second height H2, that is, the height of the sampling needle needs to move down when the normal test tube 50a is sampled is deeper, so that the sampling needle can extend into the bottom of the normal test tube 50a to suck the blood sample, that is, the situation that the descending height of the sampling needle is insufficient to suck insufficient blood sample is avoided, and the sampling needle or the test tubes 50a and 50b are damaged due to the overlarge descending height is avoided. The sampling needle injects the sucked blood sample into a reaction tank of the sample detection assembly, reacts with the corresponding reagent and outputs a detection result. The sample detection component is preferably a plurality of sample detection components, such as a WBC detection component, a RBC/PLT detection component, a HGB detection component and the like, wherein each component carries out detection of different items, and the comprehensive multiple detection results can make more accurate and reliable judgment on the symptoms.

The racks 50a, 50b are moved from right to left along the feeding track 12 by the feeding assembly 10 in the direction shown in fig. 2. The left end and the right end of the sample introduction track 12 are respectively provided with a test tube rack loading platform 16 and a test tube rack unloading platform 18, test tube racks 50a and 50b with test tubes 50a and 50b are fed into the sample introduction track 12 by the loading platform 16, move to a test tube mixing position C along the sample introduction track 12, and after the mixing assembly grabs the test tubes 50a and 50b at the test tube mixing position C, the test tube racks 50a and 50b continue to move to the unloading platform 18 and are unloaded at the unloading platform 18. On the sample introduction track 12, a test tube detection position a, a label code scanning position B and the like are further arranged before the test tube mixing position C, wherein the detection assembly 30 corresponds to the test tube detection position a, the code scanning device 40 corresponds to the label code scanning position B, the test tubes 50a and 50B are subjected to type identification through the detection assembly 30, then subjected to bar code identification through the code scanning device 40, and the test tube mixing position C is reached after the test tube type and sample information are confirmed.

Preferably, at the test tube detection position a, the test tube detection assembly 30 first detects whether the test tubes 50a, 50b are present on the test tube racks 52a, 52b, and stops the subsequent operation without the test tubes 50a, 50b; the presence of the test tubes 50a, 50b further detects the type of test tube. In the label code scanning position B, the code scanner 40 can also scan the label to carry out secondary identification of the test tube type, and if the identification result of the code scanner 40 on the test tube type is the same as the identification result of the detection assembly 30 on the test tube type, the subsequent operation is continued; if the test tube types are different, the fact that the identification errors, the label information errors or the test tube types are not matched with the test tube rack types and the like possibly exist is indicated, the follow-up operation is stopped, the user is prompted to check, and therefore accuracy of test tube type identification can be further guaranteed through secondary identification.

In some embodiments, the label scanning bit B may be set before the test tube detecting bit a, that is, the bar code identification of the test tube is performed first and then the tube rack type identification is performed, so long as both are before the test tube mixing bit C. Additionally, in some embodiments, the test tube detection bit a and the tag code scanning bit B may be disposed at the same location on the sample track 12, in which case the first sensor 34 and the code scanner 40 may be disposed on both the left and right sides of the sample track 12; alternatively, the first sensor 34 and the scanner 40 are disposed on the same side of the sample introduction rail 12 and are arranged up and down.

In the embodiment shown in fig. 5, the magnetic member 32 is disposed on the back surface of the second test tube rack 52b, i.e., the surface facing away from the opening side 56b of the hole site 54 b. The second test tube rack 52b is provided with a groove 58 for accommodating the magnetic member 32, and the first sensor 34 and the code scanner 40 are respectively positioned on two opposite sides of the test tube racks 52a and 52b, wherein the code scanner 40 faces the opening sides 5ba and 56b of the hole sites 54a and 54b, so that bar codes can be conveniently identified; the first sensor 34 faces the side of the second tube rack 52b where the magnetic member 32 is located, ensuring the magnetic induction effect. Preferably, the first sensor 34 and the magnetic member 32 are located at the same height, and are spaced apart from each other by a small distance in the horizontal direction; the code scanner 40 and the labels are located at the same height, and are spaced apart by a small distance in the horizontal direction, so that the movement of the test tube racks 52a and 52b is prevented from being influenced. The first sensor 34 and the code scanner 40 are respectively positioned on two opposite sides of the test tube racks 52a and 52b, thereby facilitating arrangement of components and avoiding signal interference.

In other embodiments, as shown in fig. 6 and 7, the magnetic member 32 may be disposed at the bottom of the second test tube rack 52b, and the first sensor 34 may be disposed below the second test tube rack 52b, for example, in the sample injection track 12 or below the sample injection track 12, so long as the first sensor 34 can be located on the moving path of the second test tube rack 52b. In addition, as shown in fig. 8, the magnetic member 32 may be disposed on the opening side 56b of the hole site 54b of the second test tube rack 52b, and the code scanner 40 and the first sensor 34 may be disposed on the same side or different sides of the second test tube rack 52b. The number of the magnetic members 32 in the above illustration is single, and in practical applications, the number of the magnetic members 32 may be two or more, and the magnetic members may be fixed on the second test tube rack 52b by bonding, fastening, tight fitting, or the like. The plurality of magnetic pieces 32 can prevent the individual magnetic pieces 32 from falling off to influence the detection effect, so that the type of the test tube can be accurately identified.

Fig. 9 and 10 show two other embodiments of the cuvette detecting assembly 30, which are different from the previous embodiments mainly in that: the first tube rack 52a and the second tube rack 52b are different in color, such as white for the first tube rack 52a, pink for the second tube rack 52b, and so on. Accordingly, the cuvette detecting assembly 30 further includes a second sensor 36, and the second sensor 36 is a visual sensor, which can identify the colors of the first and second test tube holders 52a and 52b and generate different signals according to the different colors. In the embodiment shown in fig. 9, the first sensor 34 and the second sensor 36 are located on opposite sides of the test tube racks 52a, 52b, respectively; in the embodiment shown in fig. 10, the first sensor 34 and the second sensor 36 are located on the same side of the test tube racks 52a, 52b and are arranged up and down. Similarly, the second sensor 36 is connected to a controller, and the controller determines the tube rack type according to different signals of the second sensor 36, so as to confirm the tube type. In this embodiment, the first sensor 34 and the second sensor 36 perform the secondary detection, and the subsequent sample detection is performed only when the results of the two detections are the same, so as to further ensure the accuracy of the test tube type identification.

When the sample analyzer 100 of the present invention is used, firstly, the normal test tube 50a and the micro test tube 50b loaded with the blood sample are placed on the corresponding test tube racks 52a and 52b in a classified manner, the test tube racks 52a and 52b enter the sample injection track 12 from the loading platform 16 and move towards the test tube mixing position C, when the first test tube rack 52a loaded with the normal test tube 50a passes through the test tube detecting position A, the first sensor 34 cannot sense the magnetic field change due to the absence of the magnetic element 32, and the controller determines the normal test tube 50a according to the magnetic field change; after that, the first tube rack 52a is moved to the tube mixing position C, and the first mixing assembly grabs the common tube 50a and mixes it by reversing, rotating, etc., and the sampling needle descends by a greater height H1 to puncture and sample the mixed common tube 50 a. When the second tube rack 52b loaded with the micro tube 50b passes the tube detection position a, the first sensor 34 senses the change of the magnetic field and generates a signal due to the movement of the magnetic member 32, and the controller determines the micro tube 50b accordingly; then, the second test tube rack 52b is moved to the test tube mixing position C, and the second mixing assembly mixes the micro test tubes 50b by vibration or the like, and the sampling needle descends by a small height H2 to puncture and sample the mixed micro test tubes 50b.

In some embodiments, the sampling position of the sample analyzer of the present invention may be disposed inside the housing 20, where the test tubes 50a, 50b are transferred to the sampling position for sampling by the grippers and/or the transfer assembly after the type identification and mixing, and the test tubes 50a, 50b after the puncture sampling are returned to the test tube racks 52a, 52b by the grippers and/or the transfer assembly. In some embodiments, the sampling site of the sample analyzer of the present invention may also be disposed outside the housing 20, such as on the sample introduction track 12. At this time, the test tubes 50a, 50b after mixing may be returned to the test tube racks 52a, 52b by grippers or the like, and the test tube racks 52a, 52b may be moved along the sample introduction rail 12 to align with the sampling needle, and the sampling needle may be moved downward to puncture and sample the test tubes 50a, 50b placed on the test tube racks 52a, 52b. The sampled test tube racks 50a and 50b move to the unloading platform 18 along with the test tube racks 52a and 52b, and if the test tube racks 52a and 52b are found to need to be rechecked, the test tube racks are returned to the mixing position or any position before the mixing position along the sample feeding track 12 by the unloading platform 18.

The sample analyzer 100 of the present invention realizes the identification of the first test tube rack 52a and the second test tube rack 52b by arranging the magnetic member 32 on the second test tube rack 52b of the test tube detection assembly 30 to induce the magnetic member to generate corresponding signals with the detector, and the arrangement of the magnetic member 32 does not change the main structure and function of the second test tube rack 52b, so that the structure is simple as a whole, the installation is convenient, and the result is accurate. While the present invention has been described above with respect to the magnetic member 32 being provided in the second tube rack 52b, it should be understood that the magnetic member 32 may be provided in the first tube rack 52a, and that the distinction between the two tube racks 52a, 52b or the two types of test tubes 50a, 50b may be achieved only by providing one of the tube racks with the magnetic member 32 and providing the other tube rack with no magnetic member 32. After the test tubes 50a and 50b are accurately identified in category, corresponding mixing operation and sampling operation are carried out, so that the situations of insufficient peripheral blood dosage, instrument damage caused by the fact that the descending height of a sampling needle is not opposite due to the fact that the mixing mode is wrong can be effectively avoided, and smooth sample detection is ensured.

As shown in fig. 11, the present invention may also be a sample analysis system formed by cascading a plurality of sample analyzers, where the sample analysis system may be provided with only one test tube detection assembly 30 as a whole, that is, a plurality of sample analyzers 100 share one test tube detection assembly 30, and after the test tube detection assembly 30 performs test tube type confirmation, the test tube 50 is distributed to each sample analyzer 100 according to the test tube type and sample item information. The sample analyzer 100 may be a specific protein analyzer (e.g., CRP or SAA assay may be performed), a blood cell analyzer, a coagulation analyzer, or an immunoassay analyzer, etc. The sample feeding tracks 12 of the sample analyzers 100 can be connected with each other to form a conveying path, the loading platform 16 and the unloading platform 18 are respectively arranged at two ends of the conveying path, the test tube detecting assembly 30 is arranged close to the loading platform 16, the test tube rack 52 is sent into the conveying path by the loading platform 16, after the test tube type is confirmed by the test tube detecting assembly 30, the test tube type is sequentially conveyed to the sample analyzers 100 along the conveying path to carry out corresponding detection, and the unloading platform 18 is used for unloading after all the detection is completed. The conveying path can be formed by sampling tracks of sampling assemblies shared by a plurality of sample analyzers, can be formed by connecting the sampling tracks of the sampling assemblies after being spliced, and can also be formed by peripheral tracks which are similar to a pipeline form and are communicated with the sampling tracks of the sampling assemblies of the sample analyzers through a loading platform and an unloading platform.

The sample analysis system can cascade a corresponding number of sample analyzers 100 according to the need, and all the sample analyzers 100 share one test tube detection assembly 30, namely, all subsequent detections can be completed only by one test tube type confirmation; in addition, the sample injection paths 12 of the plurality of sample analyzers 100 are connected and share the loading platform 16 and the unloading platform 18, so that the whole system needs only one sample injection, and compared with the independent arrangement of each sample analyzer 100, the flow can be effectively reduced, and the detection speed can be increased.

It should be noted that the present invention is not limited to the above embodiments, and those skilled in the art can make other changes according to the inventive spirit of the present invention, and these changes according to the inventive spirit of the present invention should be included in the scope of the present invention as claimed.

Claims (13)

1. The utility model provides a test tube detection subassembly, is applied to sample analyzer, its characterized in that includes first test-tube rack, second test-tube rack, magnetic part and with magnetic part matched with first inductor, first test-tube rack is used for placing first type test tube, the second test-tube rack is used for placing second type test tube, first inductor sets up on sample analyzer's sample injection track, magnetic part set up in on one of first test-tube rack and second test-tube rack, be provided with magnetic part's first test-tube rack or second test-tube rack along when sample injection track removes magnetic field change, do not set up magnetic part's first test-tube rack or second test-tube rack along when sample injection track removes magnetic field does not change, first inductor produces the signal according to the change of magnetic field whether in order to judge first test-tube rack or second test-tube rack, through distinguishing first test-tube rack and second test-tube rack discernment first type test tube rack and second type test tube.

2. The tube testing assembly of claim 1, wherein the first type of tube is a plain tube for collecting venous blood and the second type of tube is a micro tube for collecting peripheral blood; and in the sample injection process of the sample analyzer, allowing the first test tube rack and the second test tube rack to be simultaneously positioned on the sample injection track.

3. The test tube testing assembly of claim 1, wherein the sample introduction track is provided with a test tube testing position and a test tube mixing position, the test tube testing position being positioned before the test tube mixing position, the first sensor being positioned in correspondence with the test tube testing position.

4. The cuvette detection assembly of claim 3, wherein the sample injection track is further provided with a tag identification site, the tag identification site being disposed before the cuvette mixing site, and the cuvette detection site being disposed before or after the tag identification site.

5. The test tube detection assembly of claim 3, wherein the sample introduction track is further provided with a tag identification position, the tag identification position being disposed at the same location of the sample introduction track as the tag identification position before the test tube mixing position.

6. The tube detection assembly of claim 5, wherein the tag identification location is provided with a code scanner, the code scanner and the first sensor being located on opposite sides of the sample injection track, respectively; or the code scanner and the first sensor are positioned on the same side of the sample injection track and are arranged up and down.

7. The sample analyzer of claim 3, wherein the first sensor is located at a bottom of the sample introduction track, and wherein the first sensor is located below the magnetic member as the first or second rack provided with the magnetic member moves past the test tube detection site along the sample introduction track.

8. The tube testing assembly of claim 1, further comprising a second sensor disposed on the sample introduction track, the first tube rack and the second tube rack being different in color, the second sensor producing different signals based on the different colors of the first tube rack and the second tube rack.

9. The cuvette detection assembly of claim 8, wherein the first sensor is a Hall sensor and the second sensor is a vision sensor, the vision sensor and the Hall sensor being located on opposite sides of the sample injection track, respectively; or the visual sensor and the Hall sensor are positioned on the same side of the sample injection track and are arranged up and down.

10. A sample analyzer, comprising a sample injection assembly, a mixing assembly, a sampling assembly, a controller and the test tube detection assembly according to any one of claims 1-9, wherein the test tube detection assembly is connected with the mixing assembly through the controller, the mixing assembly comprises a first mixing assembly and a second mixing assembly, the first mixing assembly and the second mixing assembly perform mixing operation in different modes, and the controller starts the first mixing assembly to perform mixing operation according to the signal of the first sensor when the first test tube rack moves along the sample injection track; the controller starts the second mixing assembly to carry out mixing operation according to the signal of the first sensor when the second test tube rack moves along the sample injection track.

11. The sample analyzer of claim 10, wherein the cuvette detection assembly is connected to the sampling assembly by the controller, and the controller controls the sampling needle of the sampling assembly to descend by a first height when the signal from the first sensor is determined to be the first rack; and when judging that the sampling needle is at the second height, controlling the sampling needle of the sampling assembly to descend at the second height, wherein the second height is different from the first height.

12. The sample analyzer of claim 11, wherein the sampling needle moves above the sample injection track, and the first type test tube/second type test tube after being mixed by the mixing assembly performs puncture sampling on the first type test tube rack/second type test tube rack; or the sampling needle is positioned in the sample analyzer, the first type test tube/the second type test tube which are uniformly mixed by the uniformly mixing assembly are transferred to a sampling position for puncture sampling, and then are put back into the first type test tube rack/the second type test tube rack.

13. A sample analysis system, comprising at least two cascaded sample analyzers according to any one of claims 10-12, wherein sample injection tracks of the at least two cascaded sample analyzers are mutually communicated to form a conveying path, two ends of the conveying path are respectively provided with a test tube rack loading platform and a test tube rack unloading platform, the at least two cascaded sample analyzers share the same test tube detection assembly, and the test tube detection assembly is positioned at one end of the conveying path where the test tube rack loading platform is arranged.

Images