CN216525365U - Kit and POCT blood cell analyzer - Google Patents

Abstract

The application provides a kit and POCT blood cell analyzer. The kit comprises a kit body and an anti-overflow part, wherein the kit body comprises at least one cell body, and the cell body is used for uniformly mixing samples; the anti-overflow portion is arranged at an opening of at least one cell body and used for preventing samples in the cell body from overflowing. The reagent kit can prevent the sample from overflowing when the sample is uniformly mixed in the cell body, and the reliability of sample detection is improved.

Description

Kit and POCT blood cell analyzer

Technical Field

The application relates to the technical field of medical instruments, in particular to a kit and a POCT blood cell analyzer.

Background

The blood cell analyzer is a common medical detection device, is an instrument for detecting parameters such as the number, the proportion and the like of blood cells (red blood cells, white blood cells and blood platelets) in blood, and realizes the functions of microbial infection type, anemia diagnosis and treatment, blood disease diagnosis and the like of a detected sample through blood analysis. With the progress of technology and the development of science and technology, the function of the blood cell analyzer is continuously expanded, the performance is continuously improved, the automation degree is continuously improved, and the blood cell analyzer is widely applied clinically.

However, in the conventional POCT blood cell analyzer, when a sample is detected in a reagent kit, the sample in the reagent kit is easy to overflow in the process of mixing, which affects the reliability of the detection result.

SUMMERY OF THE UTILITY MODEL

The application provides a kit and POCT blood cell analyzer to solve prior art, the sample in the kit spills over easily at the in-process of mixing, influences the technical problem of testing result's reliability.

In order to solve the technical problem, the application adopts a technical scheme that: providing a kit comprising: the box body comprises at least one pool body, and the pool body is used for uniformly mixing samples; the anti-overflow portion is arranged at an opening of at least one cell body and used for preventing samples in the cell body from overflowing.

Further, the side wall of at least one cell body protrudes out of the surface of the box body to form an anti-overflow part.

Further, the height range of the side wall of at least one pool body protruding out of the surface of the box body is as follows: 5mm-15 mm.

Further, at least one cell body comprises: a forebay and/or a pre-dilution bay, wherein the cross-sectional area of the bottom of the forebay is less than the cross-sectional area of the upper end of the forebay.

Further, the forepool is used for HGB parameter detection and/or electrical impedance detection.

Further, the anti-overflow portion can be detachably connected with the box body, and the anti-overflow portion and the box body are integrally formed.

Further, the inner wall of the anti-overflow part is flush with the inner wall of the tank body.

Further, at least one of the cell bodies includes a front cell, a rear cell is provided at one side of the front cell, a microporous sheet is provided between the front cell and the rear cell, the microporous sheet is provided with micropores allowing cells to pass therethrough one by one, and the front cell and the rear cell are communicated through the micropores on the microporous sheet.

Further, the box body includes that the annex places the district, and the annex is placed the district and is placed the district including first annex and second annex, and first annex is placed and be provided with any one in detection zone, washing district and the reagent district between the district with the second annex.

In order to solve the above technical problem, another technical solution adopted by the present application is: the POCT blood cell analyzer comprises the kit of any embodiment and a detection seat matched with the kit, and is used for analyzing and detecting blood samples.

The beneficial effect of this application is: be different from prior art's condition, the kit of this application includes box body and anti-overflow portion, and wherein, the box body includes at least one cell body, and the cell body is used for the sample mixing, and anti-overflow portion sets up in the opening part of at least one cell body for prevent that the sample in the cell body from overflowing the cell body at the in-process of mixing, thereby improve the reliability that the sample detected.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, it is obvious that the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without inventive efforts, wherein:

FIG. 1 is a schematic structural diagram of one embodiment of a kit provided herein;

FIG. 2 is a schematic cross-sectional view of a perspective of the kit shown in FIG. 1;

FIG. 3 is a schematic top view of the kit shown in FIG. 1;

FIG. 4 is a schematic structural diagram of one embodiment of a kit provided herein;

FIG. 5 is a schematic flow diagram of a first embodiment of a measurement method of an animal blood analyzer provided herein;

FIG. 6 is a schematic flow diagram of a second embodiment of a measurement method of the animal blood analyzer provided herein;

FIG. 7 is a schematic flow diagram of a third embodiment of a measurement method of the animal blood analyzer provided herein;

fig. 8 is a schematic flow chart of a fourth embodiment of the measurement method of the animal blood analyzer provided in the present application.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, 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 application.

It should be noted that if directional indications (such as up, down, left, right, front, and back … …) are referred to in the embodiments of the present application, the directional indications are only used to explain the relative positional relationship between the components, the movement situation, and the like 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 of "first", "second", etc. in the embodiments of the present application, 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, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present application.

A first embodiment, the present application provides a kit, as shown in fig. 1-fig. 2, fig. 1 is a schematic structural diagram of an embodiment of the kit provided in the present application, and fig. 2 is a schematic sectional structural diagram of a viewing angle of the kit shown in fig. 1, the kit includes: a case 10 and a microporous sheet 30.

Further, the box body 10 comprises a front pool 101, a rear pool 41 and a via hole 103 between the front pool 101 and the rear pool 41, the front pool 101 and the rear pool 41 are communicated through the via hole 103, a front pool electrode 60 is arranged at the front pool 101, and a rear pool electrode 50 is arranged at the rear pool 41.

The front tank 101 and the rear tank 41 may be used for electrical impedance detection, and in this embodiment, two sets of the front tank 101 and the rear tank 41 are provided, and are respectively used for performing White Blood Cell (WBC) detection and Red Blood Cell (RBC) detection in cooperation. In other embodiments, the front pool 101 may also be provided with one group or at least three groups, etc. for detecting red blood cells, white blood cells, or other items, and the arrangement may be specifically set according to actual needs.

In this embodiment, the kit further comprises a microporous sheet 30, the microporous sheet 30 is provided with micropores 31 for allowing cells to pass through one by one, the microporous sheet 31 is welded to one side of the via hole 103, and the liquid in the front tank 101 enters the rear tank 41 through the micropores 102.

In this embodiment, the microporous sheet 30 can be fixed on the side of the through hole 103 close to the rear well 41, and the microporous sheet 30 can be directly adhered or welded to the case body 10 without other parts to tightly abut against the microporous sheet 30, so that the fixing structure of the microporous sheet 30 is simple and the fixing reliability is high.

Further, as shown in fig. 2, the kit may further include a sealing ring 20, wherein the sealing ring 20 is located on one side of the microporous sheet 30, and is used for preventing the sample from flowing out of the micropores 31 and leaking when flowing from the front cell 101 to the back cell 41.

In a specific embodiment, the cartridge 10 includes a mounting cavity 102 communicating with the front tank 101 and a rear tank body 40, the rear tank body 40 is disposed in the mounting cavity 102, and the rear tank body 40 is formed with a rear tank 41. The sealing ring 20 may be located in the installation cavity 102, and the sealing ring 20 is located on one side of the microporous sheet 30 close to the rear cell 41 to seal the front end of the rear cell body 41, so as to prevent the sample from leaking, thereby improving the accuracy of the measurement result.

Specifically, the microporous sheet 30 is fixed in the mounting cavity 102, the sealing ring 20 is disposed on a side of the microporous sheet 30 close to the rear cell 41, the rear cell body 40 is located on a side of the sealing ring 20 away from the microporous sheet 30, the rear cell body 40 abuts against the sealing ring 20, the sealing ring 20 is fixed on the box body 10, and then the rear cell body 40 is welded on the box body 10, after the welding process is completed, the rear cell body 40 can press the sealing ring 20, so that the front end of the rear cell body 40 has good sealing performance.

In other embodiments, the installation cavity 102 may not be provided with the rear tank body 40, but the installation cavity 102 itself may be used as the rear tank 41, and both the gasket 20 and the microporous sheet 30 may be fixed in the installation cavity 102. Therefore, the structure of the kit can be simplified, the number of kit assembly parts can be reduced, and the material cost can be saved.

Further, sealing washer 20 is installed in installation cavity 102 to with installation cavity 102 clearance fit, so, when sealing washer 20 put into, can not take place the slope, make things convenient for the installation of sealing washer 20, and the liquid of forebay 101 can not enter into in the rear pool body 40 from the edge of sealing washer 20, improve the reliability that the kit detected.

The sealing ring 20 may be injection molded using a relatively soft plastic material using a two-shot molding process.

Further, the ratio of the diameter of the microporous sheet 30 to the diameter of the via hole 103 is not less than 1.7, and the diameter of the microporous sheet 30 is not greater than the inner diameter of the mounting cavity 102, for example, the ratio of the diameter of the microporous sheet 30 to the diameter of the via hole 103 is 1.7, 1.75, 1.8, etc., and the diameter of the microporous sheet 30 may be equal to the inner diameter of the mounting cavity 102 or slightly smaller than the inner diameter of the mounting cavity 102. In this way, the installation and welding of the microporous sheet 30 is facilitated, and the assembly time of the microporous sheet 30 is saved.

Further, the ratio of the diameter of the via hole 103 to the diameter of the micropore 31 is not less than 15. That is, the diameter of the via hole 103 may be 15 times, 20 times, 30 times, 50 times, etc. the diameter of the micro hole 31. Therefore, the influence of turbulent flow can be reduced, and the accuracy of the detection result of the kit is improved.

Further, as shown in fig. 2 and 3, the case body 10 is provided with a front cell electrode 60 corresponding to the front cell 101, a rear cell electrode 50 is provided on the rear cell body 40, the rear cell electrode 50 can be wrapped on the rear cell body 40 by a profile encapsulation process, and the front cell electrode 60 and the rear cell electrode 50 are respectively spaced at both sides of the microporous sheet 30. The outer ends of the front cell electrode 60 and the rear cell electrode 50 (i.e. the two ends far away from each other) are used for connecting a working voltage, the inner ends of the front cell electrode 60 and the rear cell electrode 50 (i.e. the two ends near to each other) are in contact with a sample liquid to be detected, the liquid level of the sample liquid to be detected in the front cell 101 is higher than that of the front cell electrode 60, and the rear cell 41 is filled with the sample liquid to be detected during detection.

In the embodiment of the application, the axis of the front cell electrode 60 and the axis of the rear cell electrode 50 are approximately on the same straight line, and experiments prove that the detection precision is relatively high when the axis of the front cell electrode 60 and the axis of the rear cell electrode 50 are coaxial. In other embodiments, the axis of the front cell electrode 60 and the axis of the rear cell electrode 50 may not be collinear.

In other embodiments, the outer end surface of the mounting cavity 102 may be provided with a positioning portion, and the rear tank body 40 may be provided with a matching portion, and the positioning portion is matched with the matching portion to perform positioning and mounting on the rear tank body 40. Wherein location portion can be positioning groove, and cooperation portion can be the location arch, and perhaps location portion can be the location arch, and cooperation portion is positioning groove. Thus, the assembly difficulty of the rear pool body 40 can be reduced, and the assembly time can be saved.

Further, as shown in fig. 4, a spill prevention portion 70 may be provided at an opening of the front pool 101 of the cartridge 10 of the present application, for preventing a liquid in the front pool 101 from spilling. The overflow prevention part 70 is provided to a surface of the case body 10 and may be integrally formed with the case body 10, or the overflow prevention part 70 may be detachably coupled with the case body 10.

Preferably, the sidewall of the front well 101 protrudes from the surface of the case body 10 to form the overflow preventing part 70, so as to simplify the structure of the reagent cartridge.

In conclusion, the kit of the present embodiment has a simple structure, a novel fixing manner of the microporous sheet 30, a simple fixing structure, and a high reliability.

In a second embodiment, the present application further provides a kit, as shown in fig. 1 and fig. 3, fig. 3 is a schematic top view of the kit in fig. 1, specifically, in this embodiment, the kit includes a box body 10, a detection area 11 and an accessory placement area (not shown in the figure) are disposed on the box body 10, the detection area 11 is provided with a detection cell 110 for detecting a sample, and the accessory placement area is used for placing accessories required for sample detection, for example, for placing a pipette tip and/or a puncture tip, etc.

Further, as shown in the embodiment of fig. 3, the accessory placement area includes a first accessory placement area 12 and a second accessory placement area 13, and the first accessory placement area 12 and the second accessory placement area 13 are respectively located at two opposite sides of the detection area 11. For example, a first accessory placement zone 12 is disposed on the left side of the detection zone 11 and a second accessory placement zone 13 is disposed on the right side of the detection zone 11.

By the arrangement mode, when the reagent box is placed in the detection seat to detect items, one accessory placing area is close to the item detection area on the detection seat, and the other accessory placing area is close to the detection area 11 on the reagent box, so that the moving distance of the liquid transferring device is shortened, and the sample adding time is shortened. In addition, the two accessory placing areas are respectively positioned at two sides of the detection area 11, so that the balance of the kit can be improved, and the kit can stand more stably.

The case 10 further includes a reagent area 16 for storing a reagent, and a cleaning area (not shown) for cleaning the accessories placed in the accessory placement area. In other embodiments, a reagent area 16 or a washing area or the like may be further provided between the first accessory placing area 12 and the second accessory placing area 13. For example, the first attachment placing area 12 and the second attachment placing area 13 are located on the left and right sides of the reagent area 16, respectively, or the first attachment placing area 12 and the second attachment placing area 13 are located on the left and right sides of the washing area, respectively. Thus, the reagent box is provided with a plurality of accessory placing areas, the moving distance of the liquid transfer device is shortened, and the sample adding time is shortened.

Further, in the embodiment shown in fig. 3, the cleaning zone comprises a first cleaning zone 14 and a second cleaning zone 15, the first cleaning zone 14 being arranged adjacent to the first accessory placement zone 12 and the second cleaning zone 15 being arranged adjacent to the second accessory placement zone 13. In this application, set up two washing district to be located the relative both sides of detection zone 11 respectively, can shorten the washing time of annex.

Further, in the embodiment shown in FIG. 3, a reagent zone 16 is provided adjacent to the second accessory placement zone 13 for providing reagents for use in the detection of items in the detection zone 11.

Specifically, as shown in fig. 3, the reagent zone 16 includes a sample placement cell 163, a diluent cell 162, and a hemolytic agent cell 161. Wherein the sample placing pool 163 is used for placing test tubes containing samples, and the hemolytic agent pool 161 is used for encapsulating hemolytic agents; the diluent reservoir 162 is used to encapsulate the diluent.

The second accessory placement area 13 includes at least one second pipette head placement well 131 for placing pipette heads. The second washing zone 15 comprises at least one second washing basin 151 for washing the pipette head.

Further, the centers of the sample placing cell 163, the at least one second washing cell 151, and the at least one second pipette head placing cell 131 are arranged in a first straight line or a first arc line.

The centers of the diluent pool 162 and the hemolytic agent pool 161 are arranged in a second straight line, and the first straight line and the second straight line are arranged in parallel and at intervals, or, in other embodiments, the centers of the diluent pool 162 and the hemolytic agent pool 161 are arranged in a second arc line, and the first arc line and the second arc line are arranged in parallel and at intervals.

In the present embodiment, as shown in fig. 3, the second attachment placing area 13 includes two second pipette tip placing pools 131, wherein centers of the two second pipette tip placing pools 131 are a third straight line, and the third straight line is perpendicular to the first straight line. In other embodiments, the second attachment placing area 13 may include only one second pipette tip placing pool 131, or include more than two second pipette tip placing pools 131, which may be specifically set according to actual needs, and is not specifically limited herein.

Further, as shown in fig. 3, the first accessory placing area 12 includes at least one first pipette head placing cell 121, the first cleaning area 14 includes at least one first cleaning cell 141, a pre-dilution cell 17 is further disposed on the box body 10, the pre-dilution cell 17 is used for sample dilution, and the pre-dilution cell 17 can be close to the first accessory placing area 12.

Further, the pre-dilution tank 17, the at least one first washing tank 141, and the at least one first pipette head placing tank 121 are arranged in a straight line or in an arc line. Preferably, the pre-dilution tank 17, the at least one first washing tank 141, and the at least one first pipette head placing tank 121 are disposed side by side at one side of the detection zone 11 to reduce the overall length of the reagent cartridge.

In the above embodiment, the first attachment placing area 12, the first cleaning area 14 and the pre-dilution tank 17 are disposed on the left side of the detection area 11, so that after the reagent kit is placed in the detection seat, the first attachment placing area 12, the first cleaning area 14 and the pre-dilution tank 17 can be close to the detection areas of SAA and CRP, and when performing SAA and CRP item detection, the moving distance of the liquid-transferring device in three-dimensional movement is minimized, thereby reducing the sample-adding and cleaning time. The second accessory placing area 13, the second cleaning area 15 and the reagent area 16 are arranged on the right side of the kit, so that the moving distance of the moving part pipette head is shortened, and the sample adding and cleaning time is shortened during routine blood detection.

Further, the detection zone 11 is provided with a detection cell 110. The detection cell 110 may be an electrical impedance detection cell and/or an optical detection cell for electrical impedance detection and/or optical detection of the sample.

Further, when the detection cell 110 is used for electrical impedance detection, as shown in fig. 1 and 2, the detection cell 110 may include a front cell 101, a rear cell 41, and the like. The front pool 101 and the rear pool 41 communicate through a via 103. The case 10 is provided with a front cell electrode 60 corresponding to the front cell 101, and the case 10 is provided with a rear cell electrode 50 corresponding to the rear cell 41. The micro-porous sheet 30 is disposed at one end of the through hole 103, the micro-porous sheet 30 is provided with micro-holes 31 allowing cells to pass through one by one, the sample in the front cell 101 enters the rear cell 41 through the micro-holes 31, and the front cell 101 and the rear cell 41 can be used for performing WBC (white blood cell) detection and/or RBC (red blood cell) detection in cooperation.

In the above embodiment, the microporous sheet 30 may be welded to one end of the via hole 103 to fix the microporous sheet 30 to the case 10, so that the fixing structure of the microporous sheet 30 is simple and has high reliability.

Alternatively, the detection cell 110 may be used for optical detection and for detecting any one of HGB, CRP, SAA parameters.

Further, as shown in fig. 4, a spill prevention portion 70 may be provided at an opening of the front pool 101 for preventing a liquid in the front pool 101 from spilling.

Preferably, the sidewall of the front well 101 protrudes from the surface of the case body 10 to form the overflow preventing part 70, so that the structure of the reagent cartridge can be simplified.

In this embodiment, the first accessory holding region 12 and the second accessory holding region 13 are respectively disposed on two opposite sides of the detection region 11, so as to reduce the sample application time of the pipette tip. And by making each cell body on the box body 10 be in straight line distribution, the liquid transfer device is convenient to move in a short path during automatic detection, wherein the liquid transfer device is used for transferring and mixing the liquid in each cell body.

In a third embodiment, the present application further provides a reagent kit, as shown in fig. 1 and fig. 3, fig. 3 is a schematic top view of the reagent kit in fig. 1, the reagent kit includes a box body 10, a detection area 11 and a cleaning area (not shown) are disposed on the box body 10, the detection area 11 is provided with a detection cell 110 for detecting a sample, and the cleaning area is used for cleaning accessories on the reagent kit.

Specifically, the washing area includes a first washing area 14 and a second washing area 15, and the first washing area 14 and the second washing area 15 are respectively located at two opposite sides of the detection area 11. For example, as shown in FIG. 3, the first wash zone 14 is located to the left of the detection zone 11 and the second wash zone 15 is located to the right of the detection zone 11. In this application, set up two washing district to be located the both sides of detection zone 11 respectively, can reduce the distance of moving of liquid-transfering device, shorten the washing time of annex.

The cassette 10 further includes a reagent area 16 for storing reagent and an accessory placement area (not shown) for placing accessories. In other embodiments, a reagent zone 16 or an accessory placement zone or the like may also be provided between the first washing zone 14 and the second washing zone 15. For example, the first washing section 14 and the second washing section 15 are located on the left and right sides of the reagent section 16, respectively, or the first washing section 14 and the second washing section 15 are located on the left and right sides of the attachment placement section, respectively. Thus, the reagent cartridge is provided with a plurality of washing areas, so that the moving distance of the liquid transfer device is shortened, and the washing time of accessories is shortened.

Further, the box 10 is further provided with an accessory placing area (not shown), and the accessory placing area is used for placing accessories required for sample detection, for example, the accessory placing area is used for placing a pipette head and/or a puncture tip, etc. The accessory placing area includes a first accessory placing area 12 and a second accessory placing area 13, the first accessory placing area 12 is disposed near the first cleaning area 14, and the second accessory placing area 13 is disposed near the second cleaning area 15. As shown in FIG. 3, the first attachment holding section 13 can be provided on the left side of the detection section 11, and the second attachment holding section 12 can be provided on the right side of the detection section 11, so that the distance of movement of the pipetting device can be shortened, and the time required for sample addition and washing can be reduced.

Further, as shown in FIG. 3, the reagent cartridge further comprises a reagent zone 16 for storing reagents, and in the embodiment shown in FIG. 3, the reagent zone 16 is disposed adjacent to the second washing zone 15.

The reagent zone 16 includes a sample placement cell 163, a diluent cell 162, and a hemolytic agent cell 161. Wherein the sample placing pool 163 is used for placing test tubes containing samples, and the hemolytic agent pool 161 is used for encapsulating hemolytic agents; the diluent reservoir 162 is used to encapsulate the diluent.

The second accessory placement area 13 includes at least one second pipette head placement well 131 for placing pipette heads. The second washing zone 15 comprises at least one second washing basin 151 for washing the pipette head.

Further, the centers of the sample placing cell 163, the second washing cell 151, and the at least one second pipette head placing cell 131 are arranged in a first straight line or a first arc line.

The centers of the diluent pool 162 and the hemolytic agent pool 161 are arranged in a second straight line, and the first straight line and the second straight line are arranged in parallel and at intervals, or, in other embodiments, the centers of the diluent pool 162 and the hemolytic agent pool 161 are arranged in a second arc line, and the first arc line and the second arc line are arranged in parallel and at intervals.

In the present embodiment, as shown in fig. 3, the second attachment placing area 13 includes two second pipette tip placing pools 131, wherein centers of the two second pipette tip placing pools 131 are a third straight line, and the third straight line is perpendicular to the first straight line. In other embodiments, the second accessory placing area 13 may also include only one second pipette tip placing tank 131, or include more than two second pipette tip placing tanks 131, where the more than two second pipette tip placing tanks 131 are linearly arranged, and may be specifically set according to actual needs, and are not specifically limited herein.

The first accessory placing area 12 comprises at least one first pipette head placing pool 121, the first cleaning area 14 comprises at least one first cleaning pool 141, a pre-dilution pool 17 is further arranged on one side of the box body 10 close to the first cleaning area 14, and the pre-dilution pool 17 is used for sample dilution.

Further, the pre-dilution tank 17, the at least one first washing tank 141, and the at least one first pipette head placing tank 121 are arranged in a straight line or in an arc line. Preferably, the pre-dilution tank 17, the at least one first washing tank 141, and the at least one first pipette head placing tank 121 are disposed side by side at one side of the detection zone 11 to reduce the overall length of the reagent cartridge.

In the above embodiment, the first attachment placing area 12, the first cleaning area 14 and the pre-dilution tank 17 are disposed on the left side of the detection area 11, so that after the reagent kit is placed in the detection seat, the first attachment placing area 12, the first cleaning area 14 and the pre-dilution tank 17 can be close to the detection areas of SAA and CRP, and when performing SAA and CRP item detection, the moving distance of the liquid-transferring device in three-dimensional movement is minimized, thereby reducing the sample-adding and cleaning time. The second accessory placing area 13, the second cleaning area 15 and the reagent area 16 are arranged on the right side of the kit, so that the moving distance of the moving part pipette head is shortened, and the sample adding and cleaning time is shortened during routine blood detection.

Further, the detection area 11 is provided with a detection cell 110 (not shown). The detection cell 110 may be an electrical impedance detection cell 110 and/or an optical detection cell 110 for electrical impedance detection and/or optical detection of the sample.

Further, when the detection cell 110 is used for electrical impedance detection, as shown in fig. 1 and 2, the detection cell 110 may include a front cell 101, a rear cell 41, and the like. The front pool 101 and the rear pool 41 communicate through a via 103. The case 10 is provided with a front cell electrode 60 corresponding to the front cell 101, and the case 10 is provided with a rear cell electrode 50 corresponding to the rear cell 41. The micro-porous sheet 30 is disposed at one end of the through hole 103, the micro-porous sheet 30 is provided with micro-holes 31 allowing cells to pass through one by one, the sample in the front cell 101 enters the rear cell 41 through the micro-holes 31, and the front cell 101 and the rear cell 41 can be used for matching with WBC (white blood cell) detection and/or RBC (red blood cell) detection.

In the above embodiment, the microporous sheet 30 may be welded to one end of the via hole 103 to fix the microporous sheet 30 to the case 10, so that the fixing structure of the microporous sheet 30 is simple and has high reliability.

Alternatively, the detection cell 110 may be used for optical detection and for detecting any one of HGB, CRP, SAA parameters.

Further, as shown in fig. 4, an overflow preventing part 70 may be provided at an opening of the front pool 101 for preventing liquid in the front pool 101 from overflowing.

Preferably, the sidewall of the front well 101 protrudes from the surface of the case body 10 to form the overflow preventing part 70, so that the structure of the reagent kit can be simplified.

In this embodiment, the first cleaning area 14 and the second cleaning area 15 are provided to reduce the time for cleaning the pipette head. And each cell body on the box body 10 is linearly distributed, so that the liquid moving device can conveniently move in a short path during automatic detection.

The fourth embodiment, as shown in fig. 4, the present application further provides a kit, the kit includes a case body 10, the case body 10 includes at least one cell body (not labeled in the figure), the cell body is used for uniformly mixing the sample, and since the sample easily overflows when uniformly mixed in the cell body, an anti-overflow portion 70 is provided at an opening of the cell body for preventing the sample in the cell body from overflowing.

For example, at least one of the cell bodies includes a front cell 101, a rear cell 41 is provided at one side of the front cell 101, a microporous sheet 30 is provided between the front cell 101 and the rear cell 41, the microporous sheet 30 is provided with micropores 31 allowing cells to pass therethrough one by one, and the front cell 101 and the rear cell 41 are communicated through the micropores 31 of the microporous sheet 30. The forebay 101 can be used for HGB and/or WBC detection. For example, when the front pool 101 is used for WBC detection, the sample may overflow when being mixed due to the addition of hemolytic agent. Therefore, in order to prevent the liquid from overflowing when the sample is mixed in the front pool 101, the overflow preventing part 70 is required to be arranged at the opening of the front pool 101, so that the sample does not overflow when the sample is mixed, and the reliability of the detection of the sample in the reagent kit is improved.

Further, the cross-sectional area of the bottom of the forebay 101 is smaller than that of the upper end of the forebay 101, and the inner wall of the forebay 101 smoothly transitions from the lower end to the upper end, so that the forebay 101 can prevent the sample in the forebay 101 from overflowing while satisfying the sample detection.

As shown in fig. 4, the cell body may further include a pre-dilution cell 17, the pre-dilution cell 17 being used for sample dilution. An overflow prevention portion 70 is also provided at the opening of the pre-dilution cell 17 for preventing the sample from overflowing when the pre-dilution cell 17 dilutes the sample.

It will be appreciated that the overflow prevention section 70 may be provided at both the opening of the forebay 101 and the pre-dilution bay 17, and in other embodiments, the overflow prevention section 70 may be provided only at the opening of the forebay 101 or the overflow prevention section 70 may be provided only at the opening of the pre-dilution bay 17, as desired.

In the above embodiment, the overflow preventing part 70 is provided on the cartridge body 10 to prevent the liquid in the cartridge body from overflowing, thereby improving the reliability of the sample detection of the reagent cartridge.

Further, the range of heights of the spill guard 70 relative to the surface of the cartridge body 10 is: 5mm-15 mm. For example, the height of the overflow prevention part 70 with respect to the surface of the case body 10 may be 5mm, 7mm, 10mm, or 15mm, etc.

In one embodiment, the spill guard 70 is removably attached to the cartridge 10, and in particular, the spill guard 70 is snap-fit, plug-fit, threaded, or removably attached to the cartridge 10 via screws/pins. Therefore, the anti-overflow part 70 can be conveniently maintained and replaced, and the anti-overflow part 70 can be additionally installed or detached according to the use requirement, so that the use flexibility of the kit is improved.

In another embodiment, the spill guard 70 is integrally formed with the cartridge body 10, such that the stability of the connection of the spill guard 70 to the cartridge body 10 is improved and the production of the reagent cartridge is facilitated.

Preferably, the side walls of the cell body are arranged to protrude from the surface of the case body 10 to form an overflow prevention part 70. As shown in fig. 4, the sidewall of the front pool 101 is disposed to protrude from the surface of the case body 10 to form the overflow preventing part 70. The sidewall of the pre-dilution tank 17 may also be disposed to protrude from the surface of the case body 10 to form the overflow prevention part 70.

In another embodiment, the inner wall of the overflow preventing part 70 may be flush with the inner wall of the tank body, so that the liquid can be conveniently injected into and absorbed from the tank body.

In other embodiments, the inner wall of the spill prevention portion 70 may not be flush with the inner wall of the tank body, for example, the inner wall of the spill prevention portion 70 is located outside the inner wall of the tank body, so that the overall height of the spill prevention portion 70 can be reduced.

Further, as shown in fig. 3, the cartridge 10 of this embodiment includes a detection area 11, an accessory placing area, a cleaning area, and a reagent area 16, the accessory placing area includes a first accessory placing area 12 and a second accessory placing area 13, the first accessory placing area 12 and the second accessory placing area 13 may be respectively located on two opposite sides of the detection area 11, the front pool 101 is located in the detection area 11, and the pre-dilution pool 17 is disposed near the first accessory placing area 12. In other embodiments, a cleaning area or a reagent area 16 may be further disposed between the first accessory placing area 12 and the second accessory placing area 13, such as the first accessory placing area 12 and the second accessory placing area 13 are respectively located on the left side and the right side of the cleaning area, or the first accessory placing area 12 and the second accessory placing area 13 are respectively located on the left side and the right side of the reagent area 16, and so on.

The structures of the detection area 11, the first accessory placing area 12, the second accessory placing area 13, the reagent area 16 and the washing area are the same as those in the second embodiment, and specific reference is made to the description in the second embodiment, which is not repeated herein.

In this embodiment, the overflow preventing part 70 is provided at the opening of the front pool 101 and the pre-dilution pool 17, so that the liquid in the pool can be prevented from overflowing, and the reliability of the detection of the reagent kit can be improved.

The embodiment of the present application further provides a point-of-care testing (POCT) blood cell analyzer, which includes the kit of any of the foregoing embodiments and a detection seat matched with the kit, and the POCT blood cell analyzer is used for analyzing a blood sample. For the specific structure of the kit, please refer to the drawings of the foregoing embodiments and the related text descriptions, which are not repeated herein.

The application also provides a sample analyzer, which comprises the kit of any one of the embodiments and a detection seat matched with the kit, and the sample analyzer is used for analyzing blood samples. For the specific structure of the kit, please refer to the drawings of the foregoing embodiments and the related text descriptions, which are not repeated herein.

As shown in fig. 5, the present application further provides a measurement method of an animal blood analyzer, the animal blood analyzer includes a kit, a structure of the kit is shown in fig. 1 to fig. 4, the kit includes a box 10, the box 10 includes a first detection cell and a second detection cell, where the first detection cell and the second detection cell may be two forepools 101 on the box 10, respectively, where the first detection cell may be used to perform WBC (white blood cell) detection in a coordinated manner, and the second detection cell may be used to perform RBC (red blood cell) detection in a coordinated manner.

The animal blood cells are measured by an animal blood analyzer and counted by the voltage pulse formed by the cells as they pass through the microwells 31. It is noted that the apparatus with the microporous sheet 30 and capable of counting particles by forming a voltage pulse train is applicable to the present application. The animal blood includes, but is not limited to, blood of mammals such as dog, cat, pig, sheep, cattle, tiger, wolf, elephant, giraffe, rabbit, lion or leopard.

As shown in fig. 5, fig. 5 is a schematic flow chart of a first embodiment of a measurement method of the animal blood analyzer, which can improve the accuracy of analyzing an animal blood sample by measuring animal blood. Specifically, the measurement method includes:

s51: the first sample is added to the first detection cell.

The first sample is added to the first detection cell. In a specific embodiment, the sample and the diluent can be added to the first detection cell by a pipette to obtain a first sample, so as to realize the addition of the first sample to the first detection cell, wherein the sample can be animal blood.

S52: and adding part of the first sample of the first detection pool into the second detection pool to obtain a second sample.

After the first sample is obtained, a portion of the first sample in the first test cell is added to the second test cell to prepare a second sample. In this way, samples can be saved.

In a specific embodiment, the diluent and a portion of the first sample from the first test cell can be added to the second test cell separately, and the diluent and the portion of the first sample can be mixed to obtain the second sample. In this step, the first sample is further diluted in a second detection cell to obtain a second sample.

S53: and adding a first reagent into the first detection pool to obtain a first solution to be detected, and detecting the first solution to be detected through the first detection pool to obtain a first cell count.

And adding a first reagent into the first detection pool, and mixing the first reagent and the first sample to obtain a first liquid to be detected. And detecting the first liquid to be detected through the first detection pool so as to obtain a first cell count.

In a specific embodiment, the first reagent can be a hemolytic agent by which a portion of red blood cells in the blood of the animal are lysed. In this step, a small amount of hemolytic agent may be added to perform weak hemolysis treatment on the animal blood to lyse a portion of erythrocytes in the animal blood, but not to cause shrinkage of large mitochondria in leukocytes.

The first liquid to be detected is detected by the first detection cell, and the first cell count can be obtained by measuring based on an electrical impedance method, and the first cell count can be a first leukocyte histogram.

S54: adding the second sample of the second detection cell to the first detection cell.

And after the first cell count is obtained through the first liquid to be detected, adding the second sample in the second detection pool into the first detection pool, and uniformly mixing.

S55: and adding a second reagent into the first detection pool to obtain a second liquid to be detected, and detecting the second liquid to be detected through the first detection pool to obtain a second cell count.

And then adding the second reagent into the first detection pool and uniformly mixing to obtain a second liquid to be detected, and detecting the second liquid to be detected through the first detection pool to obtain a second cell count.

Wherein the second reagent may be a hemolytic agent and the second cell count may be a second leukocyte histogram. Specifically, in this step, the second sample diluted twice is added to the first detection cell, and then the hemolytic agent is added to perform the second test. In this step, the animal blood may be subjected to a strong hemolysis treatment, and a relatively large amount of hemolytic agent is added to the first detection cell to completely lyse red blood cells, so as to obtain a second solution to be detected.

The second liquid to be detected is detected by the first detection cell, and specifically, the second cell count can be obtained based on electrical impedance measurement, and the second cell count can be a second leukocyte histogram.

The measuring method of the embodiment can accelerate the detection time of the sample, reduce the use amount of the sample and improve the accuracy of sample detection.

Fig. 6 is a schematic flow chart of a second embodiment of the measurement method of the animal blood analyzer provided in the present application, as shown in fig. 6. In this embodiment, the measurement method includes:

s61: and adding the diluent into the first detection pool and the second detection pool respectively.

Different from the previous embodiment, in the present embodiment, the diluent may be first added to the first detection cell and the second detection cell, respectively, and then the sample is diluted, respectively, so that the detection time can be saved.

S62: and adding the sample into the first detection pool, mixing the sample with the diluent in the first detection pool to obtain a first sample, and adding the first sample into the first detection pool.

And adding the sample into the first detection cell after the diluent is added into the first detection cell, and mixing the sample with the diluent added previously to obtain a first sample. Wherein, the sample can be animal blood.

S63: and adding part of the first sample into the second detection cell, and mixing the part of the first sample with the diluent in the second detection cell to obtain a second sample.

And the second detection pool is also added with the diluent in advance, and at the moment, part of the first sample is taken out from the first detection pool and added into the second detection pool, so that the part of the first sample taken out is mixed with the diluent which is added into the second detection pool before, and the second sample is obtained.

S64: and adding a first reagent into the first detection pool to obtain a first solution to be detected, and detecting the first solution to be detected through the first detection pool to obtain a first cell count.

Step S64 is the same as step S53, and is not repeated here.

S65: adding the second sample of the second detection cell to the first detection cell.

Step S65 is the same as step S54, and is not repeated here.

S66: and adding a second reagent into the first detection pool to obtain a second liquid to be detected, and detecting the second liquid to be detected through the first detection pool to obtain a second cell count.

Step S66 is the same as step S55, and is not repeated here.

In this embodiment, the diluent is added to the first detection cell and the second detection cell, and then the first sample and the second sample are obtained, so that the detection time can be shortened. In addition, the measuring method of the embodiment can reduce the sample usage amount and improve the accuracy of the detection result.

The present application further provides a measurement method of an animal blood analyzer, as shown in fig. 7, fig. 7 is a schematic flow chart of a third embodiment of the measurement method of the animal blood analyzer provided in the present application, in this embodiment, the kit further includes a pre-dilution cell, and the measurement method includes:

s71: and adding the sample and the diluent into a pre-dilution pool to obtain a third sample.

In this embodiment, the sample and the diluent are added to the pre-dilution cell and mixed uniformly to obtain a third sample. That is, the sample is first diluted in the pre-dilution cell.

S72: and adding the third sample and the diluent into the first detection pool to obtain a first sample, so that the first sample is added into the first detection pool.

And taking part of the third sample from the pre-dilution pool, adding the third sample into the first detection pool, adding the diluent, and uniformly mixing to obtain a first sample, namely diluting the sample twice to obtain the first sample, wherein the first dilution is carried out in the pre-dilution pool, and the second dilution is carried out in the first detection pool.

S73: and adding part of the first sample and the diluent into a second detection cell to obtain a second sample.

And taking part of the first sample out of the first detection pool, adding the first sample into a second detection pool, and adding a diluent into the second detection pool to dilute the first sample so as to obtain a second sample. In this way, samples can be saved.

S74: and adding a first reagent into the first detection pool to obtain a first solution to be detected, and detecting the first solution to be detected through the first detection pool to obtain a first cell count.

Step S74 is the same as step S53, and is not repeated here.

S75: adding the second sample of the second detection cell to the first detection cell.

Step S75 is the same as step S54, and is not repeated here.

S76: and adding a second reagent into the first detection pool to obtain a second liquid to be detected, and detecting the second liquid to be detected through the first detection pool to obtain a second cell count.

Step S76 is the same as step S55, and is not repeated here.

In this embodiment, the sample is diluted once by the pre-dilution cell, and then diluted for the second time and the third time by the first detection cell and the second detection cell, respectively, and the sample is diluted for multiple times, so that the accuracy of the detection result of the sample can be improved.

The present application further provides a measurement method of an animal blood analyzer, as shown in fig. 8, fig. 8 is a schematic flow chart of a fourth embodiment of the measurement method of the animal blood analyzer provided in the present application, in this embodiment, the kit further includes a pre-dilution tank, and the measurement method includes:

s81: and respectively adding the diluent into the pre-dilution pool, the first detection pool and the second detection pool.

Different from the third embodiment, in this embodiment, the diluent is first added to the pre-dilution cell, the first detection cell and the second detection cell, and then the sample is diluted, so that the detection time can be saved.

S82: and adding the sample into the pre-dilution pool to mix the sample with the diluent in the pre-dilution pool to obtain a third sample.

In this step, the sample is added into the pre-dilution pool, and the sample is mixed with the diluent previously added into the pre-dilution pool, so as to obtain a third sample. That is, in the present embodiment, the sample is diluted for the first time in the pre-dilution cell. The sample may be animal blood.

S83: and adding the third sample into the first detection cell, mixing the third sample with the diluent in the first detection cell to obtain a first sample, and adding the first sample into the first detection cell.

From the pre-dilution pond, a part of the third sample is added into the first detection pond, so that the part of the third sample is mixed with the diluent in the first detection pond, and a first sample is obtained, namely, the sample is diluted twice to obtain the first sample, the first dilution is performed in the pre-dilution pond, and the second dilution is performed in the first detection pond, so that the accuracy of sample detection can be improved.

S84: and adding part of the first sample in the first detection pool into the second detection pool, and mixing part of the first sample with the diluent in the second detection pool to obtain a second sample.

And (3) taking part of the first sample from the first detection cell and adding the part of the first sample into the second detection cell, and uniformly mixing the part of the first sample with the diluent in the second detection cell to further dilute the sample.

S85: and adding a first reagent into the first detection pool to obtain a first solution to be detected, and detecting the first solution to be detected through the first detection pool to obtain a first cell count.

Step S85 is the same as step S53, and is not repeated here.

S86: adding the second sample of the second detection cell to the first detection cell.

Step S86 is the same as step S54, and is not repeated here.

S87: and adding a second reagent into the first detection pool to obtain a second liquid to be detected, and detecting the second liquid to be detected through the first detection pool to obtain a second cell count.

Step S87 is the same as step S55, and is not repeated here.

Different from the third embodiment, in this embodiment, the diluent is added to the pre-dilution tank, the first detection tank and the second detection tank, and then the sample is diluted respectively, so that the detection time can be saved, the accuracy of the sample detection result can be improved by diluting the sample for multiple times, and the measurement method of this embodiment can save the measurement time and reduce the sample usage.

The application also provides an animal blood analyzer, which comprises a pipettor and a controller, wherein the kit comprises a first detection pool and a second detection pool, and the controller is connected with the pipettor to execute the steps of the measurement method of any one of the embodiments when measuring the animal blood to be measured.

The above embodiments are merely examples and are not intended to limit the scope of the present disclosure, and all modifications, equivalents, and flow charts using the contents of the specification and drawings of the present disclosure, which are directly or indirectly applied to other related technical fields, are included in the scope of the present disclosure.

Claims (10)

1. A kit, comprising:

the box body comprises at least one pool body, and the pool body is used for uniformly mixing samples;

the anti-overflow portion is arranged at least one opening of the tank body and used for preventing the sample in the tank body from overflowing.

2. The kit of claim 1, wherein at least one sidewall of the cell body protrudes above a surface of the cassette body to form the spill prevention portion.

3. The kit of claim 2, wherein at least one sidewall of the cell body protrudes from the surface of the case body by a height ranging from: 5mm-15 mm.

4. The kit of claim 1, wherein the at least one cell body comprises: a forebay and/or a pre-dilution bay, wherein the cross-sectional area of the bottom of the forebay is less than the area of the cross-section of the upper end of the forebay.

5. The kit of claim 4, wherein the forepool is used for HGB parameter detection and/or electrical impedance detection.

6. The kit of claim 1, wherein the spill prevention portion is removably connected to the case body, the spill prevention portion being integrally formed with the case body.

7. The kit of claim 1, wherein an inner wall of the spill guard is flush with an inner wall of the cell body.

8. The kit according to claim 1, wherein at least one of the cell bodies comprises a front cell, a rear cell is provided at one side of the front cell, a microporous sheet is provided between the front cell and the rear cell, the microporous sheet is provided with micropores allowing cells to pass therethrough one by one, and the front cell and the rear cell are communicated through the micropores of the microporous sheet.

9. The reagent kit according to claim 1, characterized in that the box body comprises an accessory placing area, the accessory placing area comprises a first accessory placing area and a second accessory placing area, and any one of a detection area, a cleaning area and a reagent area is arranged between the first accessory placing area and the second accessory placing area.

10. A POCT blood cell analyzer, comprising the kit according to any one of claims 1 to 9 and a test seat cooperating with the kit, wherein the POCT blood cell analyzer is used for analyzing and testing a blood sample.

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