Blood sample diluting and uniformly mixing device for hematology analyzer

Abstract

The utility model belongs to the technical field of blood cell analyzer auxiliary equipment, and particularly relates to a blood sample diluting and uniformly mixing device for a blood cell analyzer, which is mainly composed of a mixing container and a stirring mechanism. The stirring mechanism comprises a driver, a stirring piece, a sliding frame and a transmission assembly, the longitudinal sliding of the sliding frame and the stable transmission of the transmission assembly are utilized, the stirring piece can continuously rotate in the vertical movement process, and all-directional stirring is achieved. The device is further provided with a sliding rod, a limiting rod, an elastic piece and other structures, stable sliding of the sliding frame is guaranteed, a user can conveniently adjust the stirring position, and operation is convenient and fast. In addition, the stirring and diluting tank adopts an up-down through structure, and a detachable plugging piece at the lower end is convenient to clean, so that cross contamination is effectively avoided. The device effectively solves many problems of a traditional blood sample diluting and uniformly mixing mode, and the blood sample uniformly mixing effect and the detection accuracy are remarkably improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to blood cell analyzer auxiliary equipment technical field, concretely relates to a blood sample dilution and mixing device for blood cell analyzer. BACKGROUND

[0002] In the blood cell analysis process, the collected blood sample needs to be diluted and mixed to ensure the accuracy of the test results. The traditional blood sample dilution and mixing method has many problems, such as poor mixing effect, uneven cell distribution in the blood sample, affecting the reliability of the test results; the operation process is complex, time-consuming and labor-intensive; the structure of some mixing devices is not reasonable, difficult to clean and maintain, and easy to cause cross contamination. Therefore, a blood sample dilution and mixing device is needed to effectively solve the above problems.

[0003] The methods described in this section may not have been previously contemplated or adopted. Unless otherwise indicated, nothing in this section should be assumed to be prior art merely because it is included in this section. Similarly, nothing in this section should be assumed to have been acknowledged in any prior art unless otherwise indicated. SUMMARY

[0004] The utility model aims at providing a blood sample dilution and mixing device for blood cell analyzer to solve the problems of poor mixing effect, complex operation, and difficult cleaning and maintenance of the existing blood sample dilution and mixing method. Through the unique design of the stirring mechanism, the blood sample is fully mixed, and the accuracy of the test results is improved; at the same time, the device structure is optimized, making it easy to operate, clean and maintain.

[0005] To achieve the above-mentioned purpose, the utility model adopts one technical scheme:

[0006] A blood sample dilution and mixing device for blood cell analyzer, comprising a mixing container and a stirring mechanism, the stirring mechanism comprising a driver, a stirring piece, a carriage and a transmission assembly, the carriage being longitudinally slidingly assembled on the mixing container, the transmission assembly being provided on the mixing container and being able to slide up and down with the carriage, the input end of the transmission assembly being in transmission connection with the driver, the stirring piece being in transmission connection with the output end of the transmission assembly, the stirring piece being inserted into the mixing container, the driver being able to drive the stirring piece to rotate in cooperation with the transmission assembly, the transmission assembly being able to keep transmission with the driver when sliding up and down with the carriage.

[0007] Further, the transmission assembly comprises a transmission belt, an input transmission wheel and an output transmission wheel, the input transmission wheel and the output transmission wheel are rotationally connected to the lower side of the slide frame, the transmission belt is transmissionally connected between the input transmission wheel and the output transmission wheel, a gear groove coaxially arranged is formed in the lower end of the input transmission wheel, the output end of the driver is connected with a gear coaxially arranged and longitudinally slidingly assembled in the gear groove, and the stirring piece is coaxially fixed to the output transmission wheel.

[0008] Further, the input transmission wheel and the output transmission wheel are provided with transmission limiting grooves on the sides, which limit the up-down movement of the transmission belt.

[0009] Further, the upper end of the mixing container is fixedly connected with a slide rod, and the slide frame is slidingly connected with the slide rod through a slide hole.

[0010] Further, the slide rod has two, and the slide frame is slidingly connected with the two slide rods through two slide holes, respectively.

[0011] Further, the upper end of the mixing container is fixedly connected with a limiting rod, the limiting rod penetrates the slide frame upward and is screwedly connected with a limiting nut.

[0012] Further, the mixing container is provided with an elastic piece for upward pushing the slide frame.

[0013] Further, the elastic piece is limited to be a spiral spring, and the spiral spring is sleeved outside the slide rod and located between the mixing container and the slide frame.

[0014] Further, the mixing container has a stirring and diluting groove, the stirring and diluting groove has a through structure, and the lower end of the mixing container is detachably connected with a blocking piece for blocking the stirring and diluting groove.

[0015] Further, the blocking piece is made of flexible material, the blocking piece is elastically clamped with the inner wall of the stirring and diluting groove, and the lower end of the blocking piece is integrally formed with a handle.

[0016] Compared with the prior art, the utility model has at least the following beneficial effects:

[0017] The device drives the stirring piece to move up and down through the up-down sliding of the slide frame, and the stirring piece rotates under the action of the driver and the transmission assembly, so that the up-down mixing and stirring of the blood sample are realized, the mixing effect is greatly improved, the cell distribution in the blood sample is more uniform, and the accuracy of the detection result of the blood cell analyzer is improved.

[0018] The sliding connection between the sliding frame and the mixing container is achieved through the cooperation of the slide rods and slide holes, simple structure, smooth sliding, and convenient operation.

[0019] The limiting rod and the limiting nut can limit the sliding position of the sliding frame, and the user can adjust the position of the stirring part according to actual needs.

[0020] The stirring and diluting tank adopts a through structure from top to bottom, and the lower end is provided with a detachable plugging part, which facilitates cleaning of the mixing container after use, effectively avoids cross contamination, and improves the hygiene and reliability of the device. BRIEF DESCRIPTION OF DRAWINGS

[0021] The accompanying drawings, which are included to provide a further understanding of the present application, constitute a part of this application, illustrate the illustrative embodiments of the present application and its description, and do not constitute improper limitations on the present application. In the drawings:

[0022] Figure 1 is a structural schematic view of an embodiment of the blood sample dilution and mixing device for a blood cell analyzer of the present application;

[0023] Figure 2 is Figure 1 is an enlarged schematic view of the structure at A in the middle;

[0024] Figure 3 is a connection schematic view of the transmission assembly and the stirring part in an embodiment of the blood sample dilution and mixing device for a blood cell analyzer of the present application;

[0025] Figure 4 is Figure 3 is an enlarged schematic view of the structure at B in the middle;

[0026] Figure 5 is a structural schematic view of the plugging part in an embodiment of the blood sample dilution and mixing device for a blood cell analyzer of the present application.

[0027] The meanings of the reference numerals in the drawings are as follows:

[0028] Mixing container 1, slide rod 11, limiting rod 12, limiting nut 13, elastic member 14, helical spring 141, stirring and diluting tank 15, plugging part 16, handle 161, stirring mechanism 2, driver 21, gear 211, stirring part 22, sliding frame 23, transmission assembly 24, transmission belt 241, transmission limiting groove 2411, input transmission wheel 242, gear groove 2421, output transmission wheel 243. DETAILED DESCRIPTION

[0029] The present application will be further described below in conjunction with the drawings.

[0030] Referring to Figures 1-5 The blood sample dilution and mixing device core component provided by the utility model includes a mixing container 1 and a stirring mechanism 2. In the embodiment, the stirring mechanism 2 is composed of a driver 21, a stirring part 22, a sliding frame 23 and a transmission assembly 24. The sliding frame 23 is longitudinally slidably installed on the mixing container 1, so that the stirring part 22 can move up and down in the mixing container 1. The transmission assembly 24 is installed on the mixing container 1 and can slide up and down together with the sliding frame 23. The input end of the transmission assembly 24 is in transmission connection with the driver 21, and when the driver 21 is started, power is transmitted to the transmission assembly 24. The stirring part 22 is in transmission connection with the output end of the transmission assembly 24, and the driver 21 drives the stirring part 22 to rotate in cooperation with the transmission assembly 24. When the transmission assembly 24 slides up and down with the sliding frame 23, it always keeps transmission with the driver 21, so as to ensure that the stirring part 22 continuously rotates during the up-and-down movement, and longitudinal stirring is simultaneously performed on the basis of transverse stirring. Such longitudinal and transverse crosswise stirring mode greatly improves the uniformity of blood sample mixing. Compared with the conventional single-direction stirring, various cell components in the blood sample can be uniformly dispersed in the diluent in a shorter time, and local concentration difference caused by uneven stirring is avoided, so that the blood sample is more fully and sufficiently stirred and mixed.

[0031] In the embodiment, the transmission assembly 24 is composed of a transmission belt 241, an input transmission wheel 242 and an output transmission wheel 243. The input transmission wheel 242 and the output transmission wheel 243 are both rotationally connected to the lower side of the sliding frame 23. The transmission belt 241 in the embodiment is made of elastic material and is tightly wound outside the input transmission wheel 242 and the output transmission wheel 243 by its own elastic force, so as to realize transmission between the two transmission wheels. The input transmission wheel 242 is provided with a coaxial gear groove 2421 at the lower end, the output end of the driver 21 is connected with a gear 211 which is coaxial and longitudinally slidably assembled in the gear groove 2421, so as to ensure that the power of the driver 21 is stably transmitted to the input transmission wheel 242. Even if the sliding frame 23 slides up and down, the gear 211 and the gear groove 2421 can still keep good transmission cooperation. The stirring part 22 is fixedly connected with the output transmission wheel 243 in a coaxial manner. When the input transmission wheel 242 rotates, the output transmission wheel 243 is driven to rotate by the transmission belt 241, and in turn the stirring part 22 is driven to rotate, so as to complete the stirring operation of the blood sample.

[0032] In order to prevent the transmission belt 241 from being offset up and down during transmission and affecting the transmission effect, the input transmission wheel 242 and the output transmission wheel 243 are both provided with transmission limiting grooves 2411 which limit the up-and-down movement of the transmission belt 241. The transmission limiting grooves 2411 on the transmission belt 241 cooperate with the transmission limiting grooves 2411 on the side surfaces of the input transmission wheel 242 and the output transmission wheel 243, so as to guarantee the stability and reliability of the transmission of the transmission belt 241.

[0033] In the embodiment, the mixing container 1 is fixedly connected with a slide rod 11 at the upper end, and the slide bracket 23 is slidably connected with the slide rod 11 through a slide hole. The cooperation structure of the slide rod 11 and the slide hole is simple and practical, and provides stable guidance for the longitudinal sliding of the slide bracket 23, so that the slide bracket 23 does not shake or deviate when moving up and down. In the embodiment, two slide rods 11 are arranged at the front and back, and the slide bracket 23 is slidably connected with the two slide rods 11 through two slide holes, so as to further enhance the stability of the sliding of the slide bracket 23, and make the stirring part 22 move up and down to stir the blood sample more stably.

[0034] In the embodiment, the mixing container 1 is further fixedly connected with a limiting rod 12 at the upper end, the limiting rod 12 penetrates the slide bracket 23 upward and is threadedly connected with a limiting nut 13. The rotation of the limiting nut 13 can adjust the position of the limiting nut 13 on the limiting rod 12, so as to limit the sliding range of the slide bracket 23, and facilitate the user to flexibly adjust the position of the stirring part 22 in the mixing container 1 according to the amount of the blood sample, the characteristics of the blood sample and the actual stirring demand. In addition, the mixing container 1 is provided with an elastic member 14 for upward pushing the slide bracket 23, the elastic member 14 is a spiral spring 141, which is sleeved outside the slide rod 11 and located between the mixing container 1 and the slide bracket 23. After the user manually pushes the slide bracket 23 downward and releases the hand, the spiral spring 141 generates upward elastic force to automatically reset the slide bracket 23, thereby improving the operation convenience.

[0035] In the embodiment, the mixing container 1 is provided with a stirring and diluting groove 15, which is an up-down through structure, so as to facilitate cleaning after stirring is completed and avoid dead angles in cleaning. The lower end of the mixing container 1 is detachably connected with a blocking member 16 for blocking the stirring and diluting groove 15. When the blood sample is stirred, the blocking member 16 blocks the lower end of the stirring and diluting groove 15 to form a stirring space for containing the blood sample. The blocking member 16 is made of flexible material and is tightly and elastically clamped with the inner wall of the stirring and diluting groove 15, so as to ensure that there is no liquid leakage during stirring. The lower end of the blocking member 16 is integrally formed with a handle 161, and after the user uses it, the handle 161 is held to easily take the blocking member 16 from the stirring and diluting groove 15, so as to comprehensively clean the mixing container 1, effectively avoid cross contamination, improve the hygiene and reliability of the device, and provide protection for subsequent blood sample detection work.

[0036] The use method is as follows: before operation, according to the blood sample amount, blood sample viscosity and desired stirring depth, the limiting nut 13 is rotated to adjust the position of the limiting nut 13 on the limiting rod 12. After the position of the limiting nut 13 is determined, the sliding range of the sliding frame 23 is limited, so that the stirring member 22 stirs the blood sample in a suitable range, the stirring member 22 is prevented from being excessively deep or shallow, the stirring effect is ensured, and unnecessary damage to the mixing container 1 is prevented. During operation, the user manually controls the upward and downward movement of the sliding frame 23, and the sliding frame 23 drives the transmission assembly 24 and the stirring member 22 to move upward and downward. At the same time, the driver 21 is started, the driver 21 drives the input transmission wheel 242 to rotate through the output gear 211, the input transmission wheel 242 drives the output transmission wheel 243 to rotate through the transmission belt 241, and the stirring member 22 rotates. During the stirring process, the user pushes the sliding frame 23 downward, and the spiral spring 141 is compressed to store elastic potential energy; after the hand is released, the spiral spring 141 releases the elastic potential energy to generate an upward elastic force, so that the sliding frame 23 is automatically reset. The automatic reset function reduces the continuous operation burden of the user, enables the stirring member 22 to quickly switch between different positions, and enhances the stirring uniformity and efficiency. Under the dual action of the upward and downward movement and rotation of the stirring member 22, the blood in the mixing container 1 is fully mixed upward and downward. After use, the handle 161 of the plugging member 16 is held, and the plugging member 16 is taken off from the stirring and diluting groove 15, so that the mixing container 1 can be cleaned.

[0037] In summary, the blood sample dilution and mixing device for the blood cell analyzer is disclosed, and the core is composed of a mixing container and a stirring mechanism. The stirring mechanism includes a driver, a stirring member, a sliding frame and a transmission assembly. The stirring member can continuously rotate in the upward and downward movement by the longitudinal sliding of the sliding frame and the stable transmission of the transmission assembly, and the stirring is achieved in all directions. The device is also provided with a slide rod, a limiting rod, an elastic member and other structures, which ensure the stable sliding of the sliding frame, facilitate the user to adjust the stirring position, and are convenient to operate. In addition, the stirring and diluting groove adopts an up-down through structure, and the detachable plugging member at the lower end is convenient to clean, and cross contamination is effectively avoided. The device effectively solves many problems of the traditional blood sample dilution and mixing method, and significantly improves the blood sample mixing effect and detection accuracy.

[0038] The above embodiments only exemplarily illustrate the principle and effect of the utility model, and are not used to limit the utility model. All equivalent modifications or changes completed by those skilled in the art without departing from the spirit and technical thought disclosed by the utility model should be covered by the claims of the utility model.

Claims

1. A blood sample dilution mixing device for a blood cell analyzer, characterized by: The mixing container and the stirring mechanism, the stirring mechanism comprising a driver, a stirring piece, a sliding frame and a transmission assembly, the sliding frame being longitudinally slidingly assembled on the mixing container, the transmission assembly being provided on the mixing container and being capable of sliding up and down with the sliding frame, an input end of the transmission assembly being in transmission connection with the driver, the stirring piece being in transmission connection with an output end of the transmission assembly, the stirring piece being inserted into the mixing container, the driver being capable of driving the stirring piece to rotate in cooperation with the transmission assembly, the transmission assembly being capable of keeping transmission with the driver when sliding up and down with the sliding frame.

2. The blood sample dilution mixing device for a blood cell analyzer according to claim 1, wherein: The transmission assembly comprises a transmission belt, an input transmission wheel and an output transmission wheel, the input transmission wheel and the output transmission wheel being both rotationally connected to the lower side of the sliding frame, the transmission belt being in transmission connection between the input transmission wheel and the output transmission wheel, a gear groove being coaxially provided on the lower end of the input transmission wheel, an output end of the driver being connected with a gear coaxially provided and longitudinally slidingly assembled in the gear groove, the stirring piece being coaxially fixedly connected with the output transmission wheel.

3. The blood sample dilution mixing device for a blood cell analyzer according to claim 2, wherein: The input transmission wheel and the output transmission wheel are both provided with transmission limiting grooves on the side surfaces thereof for limiting the up and down movement of the transmission belt.

4. The blood sample dilution mixing device for a blood cell analyzer according to claim 1, wherein: The mixing container is provided with a slide rod on the upper end thereof, the sliding frame being slidingly connected with the slide rod through a slide hole.

5. The blood sample dilution mixing device for a blood cell analyzer according to claim 4, wherein: The slide rod has two, the two slide rods being spaced apart in front and back, the sliding frame being slidingly connected with the two slide rods through two slide holes respectively.

6. The blood sample dilution mixing device for a blood cell analyzer according to claim 4, wherein: The mixing container is provided with a limiting rod on the upper end thereof, the limiting rod penetrating upwardly through the sliding frame and being threadedly connected with a limiting nut.

7. The blood sample dilution mixing device for a blood cell analyzer according to claim 6, wherein: The mixing container is provided with an elastic member for upwardly pushing the sliding frame.

8. The blood sample dilution mixing device for a blood cell analyzer according to claim 7, wherein: The elastic member is limited to be a coil spring, the coil spring being sleeved on the outer side of the slide rod and being located between the mixing container and the sliding frame.

9. The blood sample dilution mixing device for a hematology analyzer according to claim 1, wherein: The mixing container has a stirring and diluting groove, the stirring and diluting groove being of a through structure, the mixing container being detachably connected with a blocking member for blocking the stirring and diluting groove on the lower end thereof.

10. The blood sample dilution mixing device for a blood cell analyzer according to claim 9, wherein: The blocking member is made of flexible material, the blocking member being elastically clamped with the inner wall of the stirring and diluting groove, the blocking member being provided with an integrally formed handle on the lower end thereof.

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