Blood collection tube capable of rapidly separating red blood cells
By incorporating a filtration and separation mechanism into the blood collection tube, the problem of red blood cell rupture due to impact is solved, improving blood collection efficiency and reducing the risk of contamination.
Patent Information
- Application Number
- CN202423118660.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-17
- Publication Date
- 2026-02-03
- Estimated Expiration
- 2034-12-17
AI Technical Summary
When collecting blood, existing vacuum blood collection tubes cause red blood cells to fall directly to the bottom, resulting in collisions and breakage, which leads to low separation efficiency and increases the risk of contamination.
A blood collection tube was designed, comprising a filtration mechanism, a separation mechanism, and a slow-flow mechanism. Impurities are filtered through the filtration layer, red blood cells are quickly separated through the red blood cell separation liquid layer, and the blood flow speed is slowed down by the slow-flow surface to avoid impact.
It enables rapid separation of red blood cells, improves blood collection efficiency, and reduces the risk of blood rupture and contamination.
Smart Images
Figure CN223860852U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to medical instrument technical field, concretely is a blood collection tube that can separate red blood cell fast. BACKGROUND
[0002] Vacuum blood collection tube is a disposable, can realize quantitative blood collection negative pressure vacuum tube, need and venous blood collection needle matched use. The principle of vacuum blood collection tube is that the blood collection tube test tube with sealing cover is pre -vacuumed into different vacuum degree, utilizes its negative pressure automatic quantitative collection venous blood sample, and the blood collection needle one end is inserted into the human body venous, and the other end is inserted into the rubber plug of vacuum blood collection tube. The human body venous blood is in the vacuum blood collection tube, under the action of negative pressure, through the blood sample container, realizes the collection of many tubes under one venous puncture and does not leak.
[0003] The existing vacuum blood collection tube is applied, and the collected blood is directly dropped into the bottom of the vacuum blood collection tube, which will cause the red blood cells to collide with each other, resulting in the rupture of the red blood cells, and the cell separation of some blood collection tubes is very troublesome, the efficiency is low, and the risk of pollution is additionally increased.
[0004] Based on this, a blood collection tube capable of rapidly separating red blood cells is provided, which can eliminate the drawbacks of the existing device. UTILITY MODEL CONTENT
[0005] The utility model aims at providing a blood collection tube capable of rapidly separating red blood cells to solve the problem that when the existing vacuum blood collection tube is applied, the collected blood is directly dropped into the bottom of the vacuum blood collection tube, which will cause the red blood cells to collide with each other, resulting in the rupture of the red blood cells, and the cell separation of some blood collection tubes is very troublesome, the efficiency is low, and the risk of pollution is additionally increased.
[0006] To achieve the above object, the utility model provides the following technical scheme:
[0007] A blood collection tube capable of rapidly separating red blood cells, comprising a blood collection tube body, a label is arranged on the surface of the blood collection tube body, a first connecting cylinder is arranged above the blood collection tube body, a second connecting cylinder is arranged below the first connecting cylinder, a filtering mechanism is arranged in the first connecting cylinder, a separating mechanism is arranged in the second connecting cylinder, the second connecting cylinder and the first connecting cylinder are connected through a fixing mechanism, a third connecting cylinder is arranged above the first connecting cylinder, and a slow flow mechanism is arranged in the third connecting cylinder.
[0008] On the basis of the above technical scheme, the utility model also provides the following optional technical scheme:
[0009] In an alternative: the filtering mechanism comprises a first filter layer, the first filter layer is located in the first connecting cylinder, and a second filter layer is arranged below the first filter layer in the first connecting cylinder.
[0010] In an alternative: the separating mechanism comprises a red blood cell separating liquid layer, and the red blood cell separating liquid layer is located in the second connecting cylinder.
[0011] In an alternative: the fixing mechanism comprises a mounting ring, the mounting ring is located at the top end of the second connecting cylinder, symmetrically arranged connecting blocks are arranged at the top end of the mounting ring, a mounting groove is arranged at the bottom end of the first connecting cylinder in a position corresponding to the mounting ring, sliding grooves are arranged in the mounting groove in positions corresponding to the connecting blocks, an annular pressing plate is arranged in the mounting groove, the top end of the annular pressing plate is fixedly connected to the top surface of the mounting groove through a plurality of springs, and a limiting groove is arranged on one side of the sliding groove.
[0012] In an alternative: a first internal thread is arranged inside the blood collection tube body port, a first threaded mounting cylinder is arranged at the bottom end of the second connecting cylinder, and the first threaded mounting cylinder is in threaded mounting connection with the first internal thread.
[0013] In an alternative: a second threaded mounting cylinder is arranged at the top end of the first connecting cylinder, a second internal thread is arranged on the inner side of the bottom of the third connecting cylinder, and the second threaded mounting cylinder is in threaded mounting connection with the second internal thread.
[0014] In an alternative: the slow-flow mechanism comprises a slow-flow surface, and the slow-flow surface is located on the inner wall of the third connecting cylinder.
[0015] In an alternative: a fixing cap is arranged above the third connecting cylinder, a third internal thread is arranged on the inner wall of the bottom of the fixing cap, an external thread is arranged on the outer side of the top of the third connecting cylinder, the third internal thread is in threaded mounting connection with the external thread, a butyl rubber plug is arranged on the inner side of the fixing cap, and a sealing gasket is arranged on the inner surface of the fixing cap outside the butyl rubber plug.
[0016] Compared with the prior art, the utility model has the advantages of the following:
[0017] The utility model discloses a blood collection tube body is provided with the first connecting cylinder above, is provided with the second connecting cylinder below the first connecting cylinder, is provided with the filtering mechanism in the first connecting cylinder, is provided with the separating mechanism in the second connecting cylinder, is connected through the fixing mechanism between the second connecting cylinder and the first connecting cylinder, is provided with the third connecting cylinder above the first connecting cylinder, is provided with the slow-flow mechanism in the third connecting cylinder, the filtering mechanism can separate the impurity in the blood, the separating mechanism can separate the red blood cell quickly, improves the blood collection efficiency, through the slow-flow mechanism can realize the slow flow of blood, simultaneously avoids the blood impact to the inner wall of blood collection tube body and causes the blood to be destroyed. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model.
[0019] Figure 2 This is a schematic diagram of the first internal thread structure of this utility model.
[0020] Figure 3 This is a schematic diagram of the first connecting cylinder structure of this utility model.
[0021] Figure 4 This is a schematic diagram of the mounting ring structure of this utility model.
[0022] Figure 5 This is a schematic diagram of the red blood cell separation liquid layer structure of this utility model.
[0023] Figure 6 This is a schematic diagram of the third connecting cylinder structure of this utility model.
[0024] Figure 7 This is a schematic diagram of the fixed cap structure of this utility model.
[0025] Figure 8 This is a schematic diagram of the slow-flow surface structure of this utility model.
[0026] Figure 9 This utility model Figure 5 Enlarged view of point A.
[0027] Figure reference numerals: 1. Blood collection tube body; 2. Label; 3. First internal thread; 4. First connecting sleeve; 5. Second connecting sleeve; 6. First threaded mounting sleeve; 7. Second threaded mounting sleeve; 8. Mounting ring; 9. Connecting block; 10. Mounting groove; 11. Slide groove; 12. Annular pressure plate; 13. Spring; 14. Limiting groove; 15. First filter layer; 16. Second filter layer; 17. Red blood cell separation fluid layer; 18. Third connecting sleeve; 19. Second internal thread; 20. External thread; 21. Slow flow surface; 22. Fixing cap; 23. Third internal thread; 24. Butyl rubber stopper; 25. Sealing gasket. Detailed Implementation
[0028] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments.
[0029] In one embodiment, such as Figures 1-9As shown, a blood collection tube capable of quickly separating red blood cells comprises a blood collection tube body 1, a label 2 is arranged on the surface of the blood collection tube body 1, a first connecting barrel 4 is arranged above the blood collection tube body 1, a second connecting barrel 5 is arranged below the first connecting barrel 4, a filtering mechanism is arranged in the first connecting barrel 4, a separating mechanism is arranged in the second connecting barrel 5, the second connecting barrel 5 and the first connecting barrel 4 are connected through a fixing mechanism, a third connecting barrel 18 is arranged above the first connecting barrel 4, and a slow-flow mechanism is arranged in the third connecting barrel 18. The filtering mechanism can separate and block impurities in the blood, the separating mechanism can quickly separate red blood cells, the blood collection efficiency is improved, the slow-flow mechanism can slow down the flow speed of the blood, and blood impact on the inner wall of the blood collection tube body 1 is avoided to prevent the blood from being damaged.
[0030] In one embodiment, as shown in Figure 5 The filtering mechanism comprises a first filter layer 15, the first filter layer 15 is located in the first connecting barrel 4, a second filter layer 16 is arranged below the first filter layer 15 in the first connecting barrel 4, and the first filter layer 15 and the second filter layer 16 filter and block impurities in the blood.
[0031] In one embodiment, as shown in Figure 5 The separating mechanism comprises a red blood cell separation liquid layer 17, the red blood cell separation liquid layer 17 is located in the second connecting barrel 5, and the red blood cell separation liquid layer 17 can quickly separate and collect red blood cells.
[0032] In one embodiment, as shown in Figure 5 and Figure 9 The fixing mechanism comprises a mounting ring 8, the mounting ring 8 is located at the top end of the second connecting barrel 5, symmetrical connecting blocks 9 are arranged at the top end of the mounting ring 8, a mounting groove 10 is arranged at the corresponding position of the mounting ring 8 at the bottom end of the first connecting barrel 4, slide grooves 11 are arranged at the corresponding positions of the connecting blocks 9 on both sides in the mounting groove 10, an annular pressing plate 12 is arranged in the mounting groove 10, the top end of the annular pressing plate 12 is fixedly connected to the top surface of the mounting groove 10 through a plurality of springs 13, a limiting groove 14 is arranged on one side of the slide groove 11, the connecting blocks 9 are aligned with the slide grooves 11, the mounting ring 8 is inserted into the mounting groove 10, so that the mounting ring 8 extrudes the annular pressing plate 12 to the position of the limiting groove 14, the second connecting barrel 5 is rotated, so that the connecting blocks 9 slide into the limiting groove 14, the second connecting barrel 5 is loosened, and the annular pressing plate 12 is lifted under the action of the spring 13 reset, so as to fix the second connecting barrel 5 and achieve the effect of quick disassembly and assembly.
[0033] In one embodiment, as shown in Figure 2 and Figure 3 A first internal thread 3 is arranged inside the port of the blood collection tube body 1, a first threaded mounting barrel 6 is arranged at the bottom end of the second connecting barrel 5, and the first threaded mounting barrel 6 is threadedly connected with the first internal thread 3.
[0034] In one embodiment, as shown in Figure 3 and Figure 6 the first connecting cylinder 4 top end is provided with a second threaded mounting cylinder 7, the third connecting cylinder 18 bottom inside is provided with a second internal thread 19, and the second threaded mounting cylinder 7 is threadedly mounted with the second internal thread 19.
[0035] In one embodiment, as shown in Figure 8 the slow flow mechanism includes a slow flow surface 21, which is located on the inner wall of the third connecting cylinder 18, to slow down the flow of blood, while avoiding the blood impacting on the inner wall of the blood collection tube body 1 to cause the blood to be damaged.
[0036] In one embodiment, as shown in Figure 6 and Figure 7 the third connecting cylinder 18 is provided with a fixed cap 22 above, the fixed cap 22 bottom inner wall is provided with a third internal thread 23, the third connecting cylinder 18 top outside is provided with an external thread 20, and the third internal thread 23 is threadedly mounted with the external thread 20, the inside of the fixed cap 22 is provided with a butyl rubber plug 24, and the inner surface of the fixed cap 22 is located outside the butyl rubber plug 24 and is provided with a sealing pad 25, and the fixed cap 22 can seal the top of the third connecting cylinder 18.
[0037] The above embodiment discloses a blood collection tube capable of quickly separating red blood cells. In use, blood is injected into the blood collection tube body 1 through the top of the third connecting cylinder 18, passes through the slow flow surface 21, slows down the flow of blood, and avoids the blood impacting on the inner wall of the blood collection tube body 1 to cause the blood to be damaged. The top of the third connecting cylinder 18 is sealed by the fixed cap 22, the first filter layer 15 and the second filter layer 16 filter and block the impurities in the blood, and when the separated red blood cell liquid is taken out, the connecting block 9 is aligned with the sliding groove 11, the mounting ring 8 is inserted into the mounting slot 10, the mounting ring 8 is extruded by the annular pressing plate 12, and the second connecting cylinder 5 is fixed by rotating the second connecting cylinder 5, so that the connecting block 9 slides into the limiting slot 14, the second connecting cylinder 5 is loosened, and the annular pressing plate 12 is lifted under the action of the spring 13, thereby fixing the second connecting cylinder 5, achieving the effect of quick disassembly and assembly.
[0038] The above is only a specific embodiment of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art can easily think of changes or replacements within the technical scope disclosed in the present application, which should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.
Claims
1. A blood collection tube capable of rapidly separating red blood cells, comprising a blood collection tube body (1), the surface of the blood collection tube body (1) is provided with a label (2), characterized in that, The blood collection tube body (1) is provided with a first connecting cylinder (4) above, a second connecting cylinder (5) below, a filtering mechanism in the first connecting cylinder (4), a separating mechanism in the second connecting cylinder (5), a fixed mechanism connecting the second connecting cylinder (5) and the first connecting cylinder (4), a third connecting cylinder (18) above the first connecting cylinder (4), and a slow flow mechanism in the third connecting cylinder (18).
2. The rapid lysateable red blood cell blood collection tube of claim 1, wherein, The filtering mechanism comprises a first filter layer (15) in the first connecting cylinder (4), and a second filter layer (16) below the first filter layer (15) in the first connecting cylinder (4).
3. The blood collection tube of claim 1, wherein the red blood cells are separated from the plasma in less than 30 minutes. The separating mechanism comprises a red blood cell separation liquid layer (17) in the second connecting cylinder (5).
4. The rapid lysisable red blood cell collection tube of claim 1, wherein, The fixed mechanism comprises a mounting ring (8) at the top end of the second connecting cylinder (5), symmetrically arranged connecting blocks (9) at the top end of the mounting ring (8), a mounting groove (10) in the first connecting cylinder (4) at a corresponding position of the mounting ring (8), sliding grooves (11) in the mounting groove (10) at corresponding positions of the connecting blocks (9), an annular pressing plate (12) in the mounting groove (10), fixed connections of the top end of the annular pressing plate (12) and the top surface of the mounting groove (10) through a plurality of springs (13), and a limiting groove (14) on one side of the sliding groove (11).
5. The rapid lysateable red blood cell blood collection tube of claim 4, wherein, The blood collection tube body (1) is provided with a first inner thread (3) inside the port, a first threaded mounting cylinder (6) at the bottom end of the second connecting cylinder (5), and a threaded mounting connection of the first threaded mounting cylinder (6) and the first inner thread (3).
6. The rapid lysateable red blood cell blood collection tube of claim 1, wherein, The first connecting cylinder (4) is provided with a second threaded mounting cylinder (7) at the top end, the third connecting cylinder (18) is provided with a second inner thread (19) on the inner side of the bottom, and the second threaded mounting cylinder (7) and the second inner thread (19) are in threaded mounting connection.
7. The rapid lysateable red blood cell tube of claim 1, wherein, The slow flow mechanism comprises a slow flow surface (21) on the inner wall of the third connecting cylinder (18).
8. The rapid lysateable red blood cell blood collection tube of claim 7, wherein, The third connecting cylinder (18) is provided with a fixed cap (22) above, the inner wall of the bottom of the fixed cap (22) is provided with a third inner thread (23), the outer side of the top of the third connecting cylinder (18) is provided with an outer thread (20), the third inner thread (23) and the outer thread (20) are in threaded mounting connection, the inner side of the fixed cap (22) is provided with a butyl rubber plug (24), and the inner surface of the fixed cap (22) is provided with a sealing gasket (25) outside the butyl rubber plug (24).