Blood storage device for fully automatic blood analyzers

Abstract

This utility model belongs to the technical field of fully automated blood analyzers, and discloses a blood storage device for a fully automated blood analyzer. It includes a storage container with an upper storage cavity, a lower clearance cavity, and a sealed interlayer cavity filled with a phase change material; a container lid, detachably mounted on the storage container; and a lifting mechanism including a lead screw with a threaded connection to a lifting platform. The top of the lifting platform has a test tube hole, and the lifting platform is slidably connected to the storage cavity. The lead screw is driven by a drive component. This utility model adopts an integrated design of constant temperature preservation and anti-contamination, and the phase change material interlayer, rubber gasket, and silicone sleeve form triple protection. The phase change material buffers external temperature fluctuations, maintaining a constant temperature environment of 4°C; the rubber gasket design isolates cold air leakage, preventing frost contamination of the test tubes; and the silicone sleeve reduces the risk of physical damage to the test tubes, thus solving the problems of temperature control limitations and sealing defects.

Description

Technical Field

[0001] This utility model relates to the field of fully automated blood analyzer technology, and in particular to a blood storage device for a fully automated blood analyzer. Background Technology

[0002] Blood storage devices for fully automated blood analyzers refer to specialized equipment designed to work with fully automated blood analyzers for the safe storage of blood samples.

[0003] Fully automated blood analyzers need to process a large number of blood samples continuously in medical testing. The constant temperature preservation and automated handling of samples are the key to ensuring the accuracy of the test. Traditional blood storage devices have the following problems: 1) Temperature control limitations: Conventional refrigeration equipment cannot maintain a stable 4°C environment (the optimal storage temperature for blood). Temperature fluctuations can easily lead to sample denaturation. 2) Defects in sealing and stability: Test tubes are prone to frost and contamination when directly exposed to cold air, and vibration may cause the test tubes to tip over. Therefore, we propose a blood storage device for a fully automated blood analyzer. Utility Model Content

[0004] In view of the limitations in temperature control and the defects in sealing and stability of the existing blood storage devices, this utility model is proposed.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution: A blood storage device for a fully automated blood analyzer includes a storage container having an upper storage cavity, a lower clearance cavity, and a sealed interlayer cavity filled with a phase change material. A container lid, which is detachably installed on the storage container via a snap-fit ​​mechanism; The lifting mechanism includes a lead screw that is vertically arranged and rotatably installed in the storage cavity. The outer surface of the lead screw is threadedly connected to a lifting platform. The top of the lifting platform has test tube holes arranged in a circumferential array. The lifting platform is slidably connected to the storage cavity. The lead screw is driven by a driving component.

[0006] As a technical solution for a blood storage device for a fully automated blood analyzer according to this utility model, the phase change material is one of modified sodium sulfate hydrate, disodium hydrogen phosphate hydrate, or a mixture of fatty acids.

[0007] As a technical solution of the blood storage device for a fully automatic blood analyzer described in this utility model, the top of the storage cavity has an integrally formed inner flange, and the inner diameter of the inner flange is smaller than the outer surface diameter of the lifting platform.

[0008] As a technical solution of the blood storage device for a fully automatic blood analyzer described in this utility model, the inner wall of the storage cavity has integrally formed convex plates arranged in a circumferential array, and the outer surface of the lifting platform has grooves corresponding to the convex plates respectively, and the grooves are adapted to the convex plates. The lifting platform is slidably installed in the storage cavity through the grooves and the convex plates.

[0009] As a technical solution of the blood storage device for a fully automatic blood analyzer described in this utility model, the bottom outer surface of the storage container has integrally formed fixing plates arranged in a circumferential array, and each fixing plate is provided with an elongated oval fixing hole for fixing.

[0010] As a technical solution of the blood storage device for a fully automatic blood analyzer described in this utility model, a rubber gasket for sealing is provided between the top of the storage container and the container lid.

[0011] As a technical solution of the blood storage device for a fully automatic blood analyzer described in this utility model, a silicone sleeve is embedded in the inner wall of the test tube hole.

[0012] As a technical solution of the blood storage device for a fully automatic blood analyzer described in this utility model, the driving component is a micro stepper motor, which is installed in the clearance cavity, and the output shaft of the micro stepper motor is connected to one end of the lead screw.

[0013] Compared with the prior art, the present invention has at least the following beneficial effects: 1. This utility model adopts an integrated design of constant temperature preservation and anti-contamination, and the phase change material interlayer, rubber pad and silicone sleeve form triple protection. The phase change material buffers external temperature fluctuations and maintains a constant temperature environment of 4°C. The rubber pad design isolates cold air leakage and avoids frost contamination of test tubes. The silicone sleeve reduces the risk of physical damage to test tubes, thus solving the problems of temperature control limitations and sealing defects.

[0014] 2. This utility model achieves precise positioning of the stepper motor-driven lifting platform through the synergistic action of the screw lifting mechanism, the convex / groove structure, and the bottom fixing plate. It is compatible with the robotic arm of a fully automatic blood analyzer for continuous sampling. The convex / groove structure provides sliding guidance to avoid jamming, the inner flange restricts displacement to prevent derailment, and the fixing plate has an anti-vibration design to ensure stable operation of the device in high-speed testing environments, thus solving the problem of stability defects. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them: Figure 1 This is a schematic diagram of the main structure of this utility model.

[0016] Figure 2 This is a cross-sectional structural diagram of the present invention.

[0017] Figure 3 For the present utility model Figure 2 Enlarged structural diagram at point A in the middle.

[0018] Figure 4 For the present utility model Figure 2 Enlarged structural diagram at point B.

[0019] Explanation of reference numerals in the attached figures: In the diagram: 1. Storage container; 101. Storage cavity; 1011. Inner flange; 1012. Convex plate; 102. Relief cavity; 103. Interlayer cavity; 104. Fixing plate; 105. Oblong fixing hole; 2. Container lid; 3. Rubber pad; 401. Miniature stepper motor; 402. Lead screw; 403. Lifting platform; 404. Test tube hole; 4041. Silicone sleeve; 4042. Groove. Detailed Implementation

[0020] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0021] Reference Figures 1-4 A blood storage device for a fully automated blood analyzer is provided. This blood storage device includes a storage container 1, which has an upper storage cavity 101, a lower clearance cavity 102, and a sealed interlayer cavity 103. The interlayer cavity 103 is filled with a phase change material. In application, the temperature of the storage cavity 101 is maintained at about 4°C by utilizing the constant temperature characteristics of the phase change material (such as modified sodium sulfate hydrate, with a phase change temperature of 4°C), thus avoiding temperature fluctuations in traditional refrigeration equipment and preventing blood sample denaturation. Container lid 2 is detachably installed on storage container 1 via a snap-fit ​​mechanism; The lifting mechanism includes a lead screw 402 that is vertically set and rotatably installed in the storage cavity 101. The outer surface of the lead screw 402 is threadedly connected to a lifting platform 403. The top of the lifting platform 403 has test tube holes 404 arranged in a circumferential array. The lifting platform 403 is slidably connected to the storage cavity 101. The lead screw 402 is driven by a drive component. In application, the lead screw 402 drives the lifting platform 403 to realize the automatic lifting of test tubes, which facilitates the full-automatic analyzer to accurately grasp samples and reduces the risk of contamination from manual intervention.

[0022] Reference Figures 2-4 The phase change material is one of modified sodium sulfate hydrate, disodium hydrogen phosphate hydrate, or a mixture of fatty acids. In applications, materials such as modified sodium sulfate hydrate have high latent heat and stable phase change temperature (4-8℃), which precisely meet the needs of blood preservation, and are low in cost and reusable.

[0023] Reference Figures 2-4 The storage cavity 101 has an integrally formed inner flange 1011 at its top, and the inner diameter of the inner flange 1011 is smaller than the outer surface diameter of the lifting platform 403. The inner wall of the storage cavity 101 has integrally formed convex plates 1012 arranged in a circumferential array. The outer surface of the lifting platform 403 has grooves 4042 that correspond to the convex plates 1012 respectively, and the grooves 4042 are adapted to the convex plates 1012. The lifting platform 403 is slidably installed in the storage cavity 101 through the grooves 4042 and the convex plates 1012. In application, the design of the inner flange 1011, the convex plates 1012 and the grooves 4042, wherein the inner flange 1011 restricts the displacement range of the lifting platform 403, and the sliding fit between the convex plates 1012 and the grooves 4042 prevents the test tube from shaking or tipping during the lifting process, and ensures stability in a vibration environment (such as when the equipment is running).

[0024] Reference Figure 1 and Figure 2 The bottom outer surface of the storage container 1 has integrally formed fixing plates 104 arranged in a circumferential array. Each fixing plate 104 has an elongated oval fixing hole 105 for fixing. The fixing plates 104 are installed on the base of the fully automated blood analyzer through the elongated oval fixing holes 105 and bolts. The fully automated blood analyzer is existing technology and will not be described in detail here. In application, the design of the fixing plates 104 and the elongated oval fixing holes 105, which are fixed to the base of the fully automated blood analyzer by bolts, prevents the storage device from shifting due to equipment vibration and improves the overall stability.

[0025] Reference Figure 2 and Figure 3A rubber gasket 3 for sealing is provided between the top of the storage container 1 and the container lid 2. After the container lid 2 is locked, the rubber gasket 3 is compressed to form an airtight layer, which isolates the exchange of internal and external air. In application, the sealing design of the rubber gasket 3 can block the leakage of cold air and the entry of external hot air, reduce the condensation and frost contamination of the test tube, and maintain a constant internal temperature.

[0026] Reference Figure 2 and Figure 4 The inner wall of the test tube well 404 is fitted with a silicone sleeve 4041, which is suitable for standard test tubes with a diameter of 12-15mm. In application, the embedded design of the silicone sleeve 4041 can buffer the collision between the test tube and the well wall, avoid the glass test tube from breaking, and increase the friction to prevent the test tube from slipping.

[0027] Reference Figure 2 The driving component is a micro stepper motor 401, which is installed in the relief cavity 102. The output shaft of the micro stepper motor 401 is connected to one end of the lead screw 402. In application, the micro stepper motor 401 is used to drive the lifting height with high precision. Combined with the robotic arm of the fully automatic blood analyzer, it can achieve millimeter-level positioning to improve the efficiency of the automated process.

[0028] The working principle of this utility model is as follows: Initialization preparation stage: First, place the storage device in a 4℃ environment for 8 hours until the material in the interlayer cavity 103 is completely solidified. Then, lock the device bolts to the sampling area of ​​the fully automatic blood analyzer through the elongated fixing hole 105 on the fixing plate 104. Sample loading stage: First, open container lid 2, and lift platform 403 automatically rises to the cavity position (initial zero position of micro stepper motor 401). Then, vertically insert blood collection tube into silicone sleeve 4041 of test tube hole 404, one tube per hole. Finally, close container lid 2, and after the buckle is locked, rubber pad 3 is compressed and sealed. Maintenance and safety phase: Wipe the inner wall of storage chamber 101 with 75% ethanol daily, and replace the filling every 3 years or when the cold storage efficiency decreases by more than 30%.

[0029] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A blood storage device for a fully automated blood analyzer, characterized in that: include: Storage container (1), the storage container (1) has an upper storage cavity (101), a lower clearance cavity (102) and a sealed interlayer cavity (103), the interlayer cavity (103) being filled with a phase change material; Container lid (2), which is detachably installed on the storage container (1) by means of a snap-fit; The lifting mechanism includes a lead screw (402) that is vertically set and rotatably installed in the storage cavity (101). The outer surface of the lead screw (402) is threadedly connected to a lifting platform (403). The top of the lifting platform (403) is provided with test tube holes (404) arranged in a circumferential array. The lifting platform (403) is slidably connected to the storage cavity (101). The lead screw (402) is driven by a driving component.

2. The blood storage device for a fully automated blood analyzer according to claim 1, characterized in that: The phase change material is one of modified sodium sulfate hydrate, disodium hydrogen phosphate hydrate, or a mixture of fatty acids.

3. The blood storage device for a fully automated blood analyzer according to claim 1, characterized in that: The top of the storage cavity (101) has an integrally formed inner flange (1011), and the inner diameter of the inner flange (1011) is smaller than the outer surface diameter of the lifting platform (403).

4. The blood storage device for a fully automated blood analyzer according to claim 1, characterized in that: The inner wall of the storage cavity (101) has integrally formed convex plates (1012) arranged in a circular array. The outer surface of the lifting platform (403) is provided with grooves (4042) corresponding to the convex plates (1012), and the grooves (4042) are adapted to the convex plates (1012). The lifting platform (403) is slidably installed in the storage cavity (101) through the grooves (4042) and the convex plates (1012).

5. The blood storage device for a fully automated blood analyzer according to claim 1, characterized in that: The bottom outer surface of the storage container (1) has integrally formed fixing pieces (104) arranged in a circular array, and each fixing piece (104) has an elongated oval fixing hole (105) for fixing.

6. The blood storage device for a fully automated blood analyzer according to claim 1, characterized in that: A rubber gasket (3) for sealing is provided between the top of the storage container (1) and the container lid (2).

7. The blood storage device for a fully automated blood analyzer according to claim 1, characterized in that: The inner wall of the test tube hole (404) is fitted with a silicone sleeve (4041).

8. The blood storage device for a fully automated blood analyzer according to claim 1, characterized in that: The driving component is a micro stepper motor (401), which is installed in the relief cavity (102) and the output shaft of the micro stepper motor (401) is connected to one end of the lead screw (402).

Images