Test tube rack for cross blood matching test
By setting a rotating block and a limiting boss and elastic element on the test tube rack, the problem of inconvenience in picking up the test tubes due to the small gaps in the test tube rack is solved, realizing convenient access to test tubes and improving experimental efficiency, while ensuring the accuracy and safety of the experiment.
Patent Information
- Application Number
- CN202520551217.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-26
- Publication Date
- 2026-02-24
- Estimated Expiration
- 2035-03-26
AI Technical Summary
The existing test tube racks for crossmatch testing have small gaps between the test tubes due to the side-by-side arrangement, making them inconvenient to handle and affecting the efficiency of the test.
Design a test tube rack for crossmatch testing. It adopts a rotating block and support frame structure. The angle adjustment and stable positioning of the test tubes are achieved by limiting bosses and elastic elements between the rotating block and the support frame. Combined with stepped steps and marking areas, it ensures convenient access to test tubes and differentiation of areas.
The rotating block design increases the gap for handling test tubes, improving operational convenience and experimental efficiency, ensuring test tube stability and sample safety, and enhancing experimental accuracy.
Smart Images
Figure CN223931467U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of auxiliary devices for crossmatch testing, specifically a test tube rack for crossmatch testing. Background Technology
[0002] Crossmatch testing is a test used to determine the compatibility of blood transfusions. Based on blood typing, crossmatch testing further confirms that there is no antigen-antibody reaction between the recipient and the donor, thus ensuring the recipient's transfusion safety.
[0003] To avoid errors in sample handling and consequently erroneous results during crossmatch testing due to unclear labeling, a utility model patent with publication number CN2482084Y proposes a dedicated test tube rack for fixing the donor's specimen, the recipient's specimen, and the crossmatched specimen in designated areas. However, this rack, by arranging the test tubes side-by-side to save space, has small gaps between the tubes, making it difficult to insert fingers and thus hindering the retrieval of tubes in the back rows, thereby affecting testing efficiency. Summary of the Invention
[0004] The technical problem to be solved by this utility model is to provide a test tube rack for crossmatch testing, so as to solve the current problem of inconvenient test tube handling.
[0005] The technical solution adopted by this utility model is: a test tube rack for crossmatch testing, including a test tube rack, a plurality of rotating blocks rotatably connected to the test tube rack, a fixing groove for placing test tubes on the rotating blocks, a support frame for supporting the rotating blocks installed between the test tube rack and the rotating blocks, the rotating blocks and the support frame being connected by a rotating shaft, and a first limiting boss and a second limiting boss for limiting the rotation blocks at both ends of the support frame.
[0006] The above structure has the following beneficial effects:
[0007] 1. The rotating block allows the test tube to be pulled and rotated at a certain angle when it is taken out, thereby increasing the gap between its end and the test tubes in the row behind it, making it easier to take out, making the operation more convenient and improving the efficiency of the experiment.
[0008] 2. The first limiting boss and the second limiting boss on both sides of the support frame are used to limit the extreme position and vertical position of the rotating block, respectively. On the one hand, this ensures that the test tube will not rotate too much and affect the result. On the other hand, it also ensures that the test tube remains vertical under normal conditions and ensures the safety of the sample.
[0009] Preferably, the test tube rack is provided with several partitions from left to right, and the test tube rack is provided with a marking area for marking the partitions.
[0010] The test tube rack is divided into several areas, including a donor sample area, a recipient sample area, a cross-matching sample area, and a spare test tube storage area. Each area is further marked and subdivided by a labeling area to ensure that samples can be clearly distinguished, avoid sample handling errors, and improve the accuracy of the test.
[0011] Preferably, the test tube rack is provided with progressively higher steps, so that the installation position of the rotating block on the test tube rack increases sequentially from front to back, forming a stepped shape.
[0012] The stepped design raises the height of the test tube racks in the front and back rows sequentially, preventing the test tubes in the back row from interfering with those in the front row when they rotate, thus making them easier to access. At the same time, the stepped design also makes it easier to observe the test tubes and allows for precise access by laboratory personnel.
[0013] Preferably, a first elastic element is also provided between the rotating block and the support frame.
[0014] The first elastic element is a torsion spring. The first elastic element enables the rotating block to automatically reset and return to the vertical position after the test tube is removed.
[0015] Preferably, a limiting rod is slidably connected to one side of the rotating block, and a second elastic element is provided between the limiting rod and the rotating block. The support frame is provided with a limiting groove for cooperating with the limiting rod.
[0016] The limiting rod can be inserted into the limiting groove on the support frame to limit the rotating block when it is in the vertical position, preventing the rotating block from rotating easily, thereby improving the stability of the test tube when it is placed.
[0017] Preferably, the side of the limiting groove is also provided with an arc-shaped guide groove, and the depth of the guide groove at the end located on the side of the support frame is greater than the depth of the guide groove at the end near the limiting groove.
[0018] The guide groove is used to accommodate the limiting rod after the rotating block rotates. The guide groove is arc-shaped to match the rotation angle of the rotating block. At the same time, the depth of the end of the guide groove away from the limiting groove is greater than the depth of the end closer to the limiting groove, so that the limiting rod can enter the limiting groove more smoothly.
[0019] Preferably, one end of the limiting rod is also connected to a clamping plate, the clamping plate is located in the fixing groove, and an anti-slip pad is installed on the side of the clamping plate away from the support frame, and an anti-slip pad is also installed on the side of the fixing groove away from the clamping plate.
[0020] The clamping plate moves together with the limiting rod. When the limiting rod is engaged in the limiting groove, it pushes the clamping plate to clamp the test tube, further improving the stability of the test tube in the vertical position. When the rotating block is rotated, the clamping plate releases the test tube, making it easier to take out. At the same time, the anti-slip pad increases the friction between the clamping plate and the test tube, ensuring a safe and stable clamping state.
[0021] Preferably, a reagent rack is also installed on one side of the test tube rack.
[0022] The reagent rack can store various reagents used in crossmatching tests, making them easy to access.
[0023] Preferably, the reagent rack is provided with a first magnetic element, and the test tube rack is equipped with a second magnetic element that is attracted to the first magnetic element.
[0024] The reagent rack and test tube rack are attracted by the magnetism of the first and second magnetic components, allowing them to be attracted together under normal circumstances for simultaneous use. They can also be easily separated for replenishing reagents or for separate cleaning and maintenance. Attached Figure Description
[0025] Figure 1 This is a three-dimensional structural schematic diagram of a test tube rack for crossmatch testing according to embodiment 1 of this utility model.
[0026] Figure 2 This is a top view of Embodiment 1 of a crossmatch test tube rack according to the present invention.
[0027] Figure 3 for Figure 2 A schematic diagram of a partial cross-sectional structure of the “AA” region.
[0028] Figure 4 for Figure 3 A schematic diagram of a partial cross-sectional structure of the “BB” region.
[0029] Figure 5 This is a three-dimensional structural diagram of the support frame in this utility model.
[0030] Figure 6 This is a schematic diagram of the main cross-sectional structure of the support frame in this utility model.
[0031] Figure 7 for Figure 2 A schematic diagram of a partial cross-sectional structure of the “AA” region in Example 2.
[0032] Figure 8 for Figure 2A magnified view of the "C" region in Example 2.
[0033] The components include: test tube rack 10, marking area 11, blood donor sample area 12, blood recipient sample area 13, cross-matching sample area 14, spare test tube placement area 15, step 16, rotating block 20, fixing groove 21, rotating shaft 22, support frame 30, first limiting boss 31, second limiting boss 32, limiting groove 33, guide groove 34, limiting rod 40, second elastic element 41, clamping plate 42, anti-slip pad 43, and reagent rack 50. Detailed Implementation
[0034] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.
[0035] Example 1
[0036] According to the instruction manual Figure 1-6 As shown, this utility model provides a test tube rack 10 for crossmatch testing, including a test tube rack 10, on which a plurality of rotating blocks 20 are rotatably mounted. Rotating shafts 22 are provided on both sides of each rotating block 20, and a fixing groove 21 for placing test tubes is provided on each rotating block 20. A support frame 30 for supporting the rotating blocks 20 is also provided between the rotating blocks 20 and the test tube rack 10. Rotating holes for connecting to the rotating shafts 22 are provided on both sides of the support frame 30. A first limiting boss 31 and a second limiting boss 32 are respectively provided on both sides of the support frame 30. The first limiting boss 31 limits the maximum rotation position of the rotating blocks 20, and the second limiting boss 32 limits the rotating blocks 20 when they are in a vertical position. By limiting both sides of the rotating blocks 20 with the first limiting boss 31 and the second limiting boss 32, the rotation angle of the rotating blocks 20 is ensured not to be too large, thereby avoiding the risk of the sample flowing out of the test tube.
[0037] The test tube rack 10 is provided with a donor sample area 12, a recipient sample area 13, a cross-matching sample area 14, and a spare test tube placement area 15 for storing spare test tubes. At the front end of the test tube rack 10, there is also a marking area 11 for marking the areas. The marking area 11 can mark each area on the test tube rack 10 so that the test personnel can place the samples in the corresponding areas.
[0038] The test tube rack 10 has a stepped platform 16 that rises one level from front to back, and the rotating block 20 is installed on the stepped platform 16, so that the installation height of the rotating block 20 increases sequentially and is arranged in a stepped manner, so that the test tubes in the back row will not interfere with the test tubes in the front row when they rotate with the rotating block 20.
[0039] A first elastic element, which is a torsion spring, is also installed between the rotating block 20 and the support frame 30. Under the elastic action of the first elastic element, the rotating block 20 tends to move toward the second limiting boss 32, so that when the rotating block 20 is rotated and the test tube is taken, the rotating block 20 can automatically reset under the action of the first elastic element.
[0040] In this embodiment, a limiting hole is provided on one side of the rotating block 20, and a limiting rod 40 is slidably connected in the limiting hole. A limiting groove 33 is provided on the support frame 30 for cooperating with the limiting rod 40. A second elastic element 41, which is a compression spring, is also installed between the limiting rod 40 and the rotating block 20. Under the action of the second elastic element 41, the limiting rod 40 tends to move towards the support frame 30. When the rotating block 20 moves to the vertical position, the limiting rod 40 and the limiting groove 33 coincide. Under the action of the second elastic element 41, the limiting rod 40 is inserted into the limiting groove 33, limiting the rotating block 20 and preventing the test tube from easily rotating during placement. An arc-shaped guide groove 34 is also provided on the side of the limiting groove 33, and the depth of the guide groove 34 away from the limiting groove 33 is greater than the depth of the guide groove 34 near the limiting groove 33.
[0041] In this embodiment, a reagent rack 50 for storing reagents is also installed on the rear side of the test tube rack 10. A first magnetic component is installed on the reagent rack 50, and a second magnetic component that attracts the first magnetic component is installed on the test tube rack 10. The reagent rack 50 and the test tube rack 10 are attracted by the magnetism of the first magnetic component and the second magnetic component, so that the reagent rack 50 and the test tube rack 10 can be attracted together under normal circumstances and used at the same time. They can also be easily separated for replenishing reagents or cleaning and maintenance.
[0042] Its working principle is as follows: the test tube is inserted into the fixed groove 21 of the rotating block 20. When the test tube needs to be taken out, the end of the test tube can be grasped or pushed to drive the test tube to rotate, thereby increasing the gap between the end of the test tube and the test tubes in the back row, so as to facilitate the taking out. When the test tube is taken out from the fixed groove 21, the rotating block 20 is reset under the action of the first elastic element and returns to the initial position. During the rotation of the rotating block 20, the limiting rod 40 slides in the guide groove 34 until it coincides with the limiting groove 33. Then, under the action of the second elastic element 41, it abuts against the limiting groove 33 to limit the rotating block 20.
[0043] Example 2
[0044] According to the instruction manual Figure 7-8As shown, the difference between this embodiment and Embodiment 1 is that a clamping plate 42 is also installed at one end of the limiting rod 40. The clamping plate 42 is arc-shaped, and an anti-slip pad 43 is provided at the end of the clamping plate 42. At the same time, an anti-slip pad 43 is also installed on the side of the fixing groove 21 away from the clamping plate 42. In this embodiment, the anti-slip pad 43 is made of polyurethane foam material, which not only has high friction but is also flexible and compressible. Through the action of the anti-slip pad 43 and the clamping plate 42, when the rotating block 20 is rotated to the vertical position, the clamping plate 42 and the anti-slip pad 43 cooperate to clamp the test tube, further ensuring the safety and stability of the test tube during placement. At the same time, when the rotating block 20 is rotated, the limiting rod 40 drives the clamping plate 42 to loosen the test tube, so that the test tube can be easily removed.
[0045] The directional terms mentioned in this utility model, such as "up", "down", "left", and "right", are only for better and clearer explanation and understanding of this utility model, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0046] The preferred embodiments of this utility model have been described above, but should not be construed as limiting the scope of the claims. This utility model is not limited to the above embodiments, and variations in its specific structure are permitted. All changes made within the scope of the independent claims of this utility model are within the scope of protection of this utility model.
Claims
1. A test tube rack for crossmatch testing, comprising a test tube rack, characterized in that, The test tube rack is rotatably connected to several rotating blocks. Each rotating block has a fixed groove for placing test tubes. A support frame for supporting the rotating blocks is installed between the test tube rack and the rotating blocks. The rotating blocks and the support frame are connected by a rotating shaft. The two ends of the support frame are respectively provided with a first limiting boss and a second limiting boss for limiting the rotation blocks.
2. The test tube rack for crossmatch testing according to claim 1, characterized in that, The test tube rack has several sections arranged from left to right, and a marking area for marking the sections is provided on the test tube rack.
3. The test tube rack for crossmatch testing according to claim 1, characterized in that, The test tube rack is provided with progressively higher steps, so that the installation position of the rotating block on the test tube rack increases sequentially from front to back, forming a stepped shape.
4. The test tube rack for crossmatch testing according to claim 1, characterized in that, A first elastic element is also provided between the rotating block and the support frame.
5. A test tube rack for crossmatch testing according to claim 4, characterized in that, A limiting rod is slidably connected to one side of the rotating block, and a second elastic element is also provided between the limiting rod and the rotating block. The support frame is provided with a limiting groove for cooperating with the limiting rod.
6. A test tube rack for crossmatch testing according to claim 5, characterized in that, The side of the limiting groove is also provided with an arc-shaped guide groove, and the depth of the guide groove at the end located on the side of the support frame is greater than the depth of the guide groove at the end near the limiting groove.
7. A test tube rack for crossmatch testing according to claim 5, characterized in that, One end of the limiting rod is also connected to a clamping plate, and an anti-slip pad is installed on the side of the clamping plate away from the support frame. An anti-slip pad is also installed on the side of the fixing groove away from the clamping plate.
8. A test tube rack for crossmatch testing according to claim 1, characterized in that, A reagent rack is also installed on one side of the test tube rack.
9. A test tube rack for crossmatch testing according to claim 8, characterized in that, The reagent rack is provided with a first magnetic component, and the test tube rack is equipped with a second magnetic component that is attracted to the first magnetic component.