Blood collection tube shaking device

Abstract

The utility model discloses a blood collection tube shaking device which comprises a base, a rotary table, a test tube rack and a driving motor, the rotary table is rotatably arranged at the upper end of the base and driven by the driving motor to rotate, the test tube rack is rotatably arranged on the outer side wall of the rotary table around the axis of the test tube rack, and a limiting support is arranged at the upper end of the base and located on the inner side of the rotary table. An inverted-Y-shaped limiting groove is formed in the side wall of the limiting support, bosses matched with the limiting groove in width are symmetrically arranged on the two sides of one end of the test tube rack, and the bosses abut against the limiting support; the rotary table is driven by the driving motor to rotate, the test tube rack arranged on the rotary table rotates along with the rotary table, and the boss is clamped with the limiting bracket, so that when the boss rotates to the limiting groove, the test tube rack can be overturned by 180 degrees around the axis of the test tube rack under the guidance of the limiting groove, and a blood sample and a reagent in a blood collection tube can be fully and uniformly mixed.

Description

Technical Field

[0001] This utility model relates to the field of shaking instruments, and in particular to a shaking device for blood collection tubes. Background Technology

[0002] Before blood testing, a blood collection procedure is required. Blood is collected using blood collection tubes containing coagulants or anticoagulants. To ensure that the blood and the reagents in the blood collection tube are fully mixed, the tube should be inverted and shaken 3-8 times immediately. This allows the blood to be thoroughly mixed with the pre-prepared reagents in the blood collection tube, thereby maximizing the effectiveness of the reagents and promoting various chemical reactions to prevent blood clotting.

[0003] The most common method of mixing blood is for medical staff to manually invert and shake the blood collection tube after blood collection. This increases the operation time for medical staff to collect blood from a single patient, resulting in reduced blood collection efficiency. Furthermore, due to differences in individual operating habits, there will be differences in the inversion range, number of times to shake, shaking speed and force, resulting in the mixing quality not reaching a homogeneous level.

[0004] Existing technologies have made improvements to this, such as the patent document with authorization announcement number CN 215276994 U, which discloses an automatic anticoagulation shaker, which includes a base and a test tube rack for placing blood collection tubes. The base is provided with a shaking device for swinging the test tube rack. The shaking device is connected to the test tube rack, which includes a plate and several test tube clamps arranged side by side on the plate. It can drive the blood collection tubes to swing, so that the blood and anticoagulant can be fully mixed without manual shaking, reducing the operation time of medical staff for blood collection from a single patient and improving work efficiency.

[0005] However, according to the "Chinese Expert Consensus on the Management of Unqualified Venous Blood Specimens," insufficient mixing of anticoagulated specimens can lead to agglutination, affecting the accuracy of blood routine and other test results. To ensure that the additives and specimens are thoroughly mixed, the specimens should be immediately inverted and shaken at 180° after collection to avoid the formation of fibrin threads, microclots, and blood clots. At the same time, excessive shaking should be avoided to prevent blood cell damage / hemolysis, platelet activation, or coagulation.

[0006] The aforementioned patent document describes an automatic anti-coagulation shaker. In its shaking device, the drive component rotates the rotating cam, and then the connecting rod drives the balance arm to swing. It cannot achieve a 180° inverted shaking, so it may not be able to avoid the formation of fibrin threads, microclots and blood clots, thus affecting the accuracy of blood routine and other test results. Utility Model Content

[0007] This utility model provides a blood collection tube shaking device, which is designed to replace manual shaking of the blood collection tube by inverting it 180°.

[0008] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0009] A blood collection tube shaking device includes a base, a turntable, a test tube rack, and a drive motor. The turntable is rotatably mounted on the upper end of the base and is driven to rotate by the drive motor. The test tube rack is rotatably mounted on the outer wall of the turntable around its axis. A limiting bracket is provided on the upper end of the base, and the limiting bracket is located inside the turntable. An inverted "Y"-shaped limiting groove is formed on the side wall of the limiting bracket. Symmetrical bosses adapted to the width of the limiting groove are provided on both sides of one end of the test tube rack. The bosses abut against the limiting bracket. The test tube rack rotates with the turntable. During the rotation, when the bosses rotate to the limiting groove, they are guided by the limiting groove, allowing the test tube rack to rotate 180° around its axis.

[0010] Compared with the prior art, the present invention achieves at least the following beneficial effects: The blood collection tube shaking device of the present invention drives the turntable to rotate by a drive motor, and the test tube rack set on the turntable rotates with the turntable. Since the boss is engaged with the limiting bracket, when the boss rotates to the limiting groove, the test tube rack can be rotated 180° around its axis under the guidance of the limiting groove. Therefore, the blood sample and reagent in the blood collection tube can be thoroughly shaken and mixed. Attached Figure Description

[0011] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0012] Figure 1 This is a structural diagram of Embodiment 1 of the present utility model;

[0013] Figure 2 This is an exploded view of Embodiment 1 of this utility model;

[0014] Figure 3 This is a partial cross-sectional view of Embodiment 1 of the present utility model;

[0015] Figure 4 This is an overall sectional view of Embodiment 1 of the present utility model;

[0016] Figure 5 This is an overall sectional view from another perspective of Embodiment 1 of this utility model;

[0017] Figure 6 This is a structural diagram of the test tube rack in Embodiment 1 of this utility model;

[0018] Figure 7 This is a structural diagram of Embodiment 2 of the present invention;

[0019] Figure 8 This is a structural diagram of the test tube rack in Embodiment 2 of this utility model.

[0020] The following are the labels in the diagram: 1. Base; 2. Turntable; 3. Test tube rack; 4. Drive motor; 11. Limiting bracket; 12. Limiting groove; 21. Through hole; 31. Boss; 32. Rotating shaft; 33. Guide block; 34. Mounting block; 35. Tube clamp; 36. First spring; 341. Placement groove; 351. Base plate; 352. Clamping plate; 353. Clamping block; 354. Sliding rod; 355. Second spring; 356. Stop block. Detailed Implementation

[0021] The present application will now be described in detail with reference to exemplary embodiments shown in the accompanying drawings. However, it should be understood that the present application may be implemented in many different forms and should not be construed as limited to the embodiments set forth herein. These embodiments are provided herein to make the disclosure of the present application more complete and to fully convey the concept of the present application to those skilled in the art.

[0022] In the description of this application, it should be understood that the terms "center", "lateral", "longitudinal", "front", "rear", "left", "right", "upper", "lower", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the scope of protection of this application.

[0023] To address the shortcomings of existing technologies where insufficient mixing of blood samples and reagents within the tube affects the accuracy of blood routine and other test results, the inventors, after careful analysis, discovered that the main reason for this problem in existing automatic anti-coagulation shakers lies in the fact that the drive component in the shaking device rotates the cam, which in turn drives the balance arm to swing via a connecting rod. This fails to achieve a 180° inverted shaking, thus potentially leading to the formation of fibrin strands, microclots, and blood clots. Based on this analysis, the inventors have made structural improvements to the blood collection tube shaking device.

[0024] like Figure 1-8 As shown, a blood collection tube shaking device according to this application includes a base 1, a turntable 2, a test tube rack 3 and a drive motor 4.

[0025] Example 1

[0026] Among them, reference Figure 1-6The turntable 2 is rotatably mounted on the upper end of the base 1 and is driven to rotate by the drive motor 4. The test tube rack 3 is rotatably mounted on the outer wall of the turntable 2 around its axis. The upper end of the base 1 is provided with a limiting bracket 11, and the limiting bracket 11 is located inside the turntable 2. The side wall of the limiting bracket 11 is provided with an inverted "Y" shaped limiting groove 12. The test tube rack 3 has symmetrical protrusions 31 on both sides of one end that are adapted to the width of the limiting groove 12, and the protrusions 31 abut against the limiting bracket 11.

[0027] The test tube rack 3 rotates with the turntable 2. During the rotation, when the boss 31 rotates to the limiting groove 12, it is guided by the limiting groove 12 to make the test tube rack 3 rotate 180° around its axis. The test tube rack 3 can be used to clamp and fix the blood collection tube. After the device is started, the blood collection tube can rotate 180° around the axis of the test tube rack 3 together with the test tube rack 3, thereby realizing the thorough inversion and mixing of the blood sample and reagent in the blood collection tube.

[0028] Optionally, two sets of limiting grooves 12 are provided, with the two sets of limiting grooves 12 respectively located on opposite sides of the limiting bracket 11. After the test tube rack 3 rotates once with the turntable 2, it is guided by the two sets of opposing limiting grooves 12, allowing the test tube rack 3 to rotate 180° twice around its axis to fully shake the blood collection tubes and ensure that the blood collection tubes remain upright after rotating N times with the turntable 2.

[0029] The test tube rack 3 includes a rotating shaft 32, a guide block 33, a mounting block 34, and a tube clamp 35. The two ends of the rotating shaft 32 are fixedly connected to the guide block 33 and the mounting block 34, respectively. The tube clamp 35 is located on the outward-facing side of the mounting block 34. A through hole 21 is provided on the side wall of the turntable 2, into which the rotating shaft 32 can be rotatably inserted. Bosses 31 are symmetrically arranged on both sides of the guide block 33. The tube clamp 35 is used to fix the blood collection tubes, preventing them from detaching from the test tube rack 3 during shaking.

[0030] The test tube rack 3 also includes a first spring 36, which is sleeved on the rotating shaft 32 and abuts against the turntable 2 and the guide block 33 at both ends, respectively. Under the action of the first spring 36, the protrusion 31 provided at one end of the guide block 33 can always remain engaged with the limiting bracket 11, and at the same time, it can increase the friction between the mounting block 34 and the turntable 2, so that the test tube rack 3 will not rotate when slightly unevenly stressed.

[0031] In this first embodiment, the pipe clamp 35 includes a base plate 351 and a clamping plate 352. The base plate 351 is fixedly connected to the mounting block 34, and the clamping plates 352 are disposed on both sides of the base plate 351. The base plate 351 and the clamping plates 352 are integrally formed from an elastic material, and one end of each clamping plate 352 disposed on both sides of the base plate 351 is curled toward the opposite inward side. Anti-slip protrusions are provided on the inner side of the clamping plates 352.

[0032] By using a base plate 351 and a clamping plate 352 integrally molded from elastic material, and with one end of the clamping plate 352 on both sides of the base plate 351 curled inwards, blood collection tubes of different diameters can be clamped and fixed. Furthermore, the clamping plate 352 has anti-slip protrusions on its inner side, which can increase the friction between the clamping plate 352 and the blood collection tube, preventing the blood collection tube from sliding during use.

[0033] In use, the blood collection tube is placed into the test tube rack 3 and clamped and fixed by the tube clamp 35 in the test tube rack 3. Then, the device is started, and the drive motor 4 drives the turntable 2 to rotate. The test tube rack 3 set on the turntable 2 can rotate with the turntable 2. During the rotation, since the boss 31 is engaged with the limiting bracket 11, when the boss 31 rotates to the limiting groove 12, the test tube rack 3 can be rotated 180° around its axis under the guidance of the limiting groove 12. Therefore, the blood sample and reagent in the blood collection tube can be thoroughly shaken and mixed.

[0034] Example 2

[0035] refer to Figure 7 The test tube rack 3 includes a rotating shaft 32, a guide block 33, a mounting block 34, and a tube clamp 35. The two ends of the rotating shaft 32 are fixedly connected to the guide block 33 and the mounting block 34 respectively. The tube clamp 35 is located on the outward side of the mounting block 34. A through hole 21 is provided on the side wall of the turntable 2. The rotating shaft 32 can be rotatably inserted into the through hole 21. The bosses 31 are symmetrically arranged on both sides of the guide block 33.

[0036] The test tube rack 3 also includes a first spring 36, which is sleeved on the rotating shaft 32 and its two ends abut against the turntable 2 and the guide block 33 respectively.

[0037] Unlike Embodiment 1 described above, in this Embodiment 2, reference is made to... Figure 7 and Figure 8 The pipe clamp 35 includes a clamping block 353, a sliding rod 354, and a second spring 355. The mounting block 34 has a placement groove 341. One end of the sliding rod 354 is slidably inserted into the placement groove 341 and fixedly connected to the clamping block 353. A stop block 356 is provided on the other end of the sliding rod 354. The second spring 355 is sleeved on the sliding rod 354, and both ends abut against the clamping block 353 and the inner wall of the placement groove 341, respectively.

[0038] The sliding rod 354 has a rectangular cross-section, which prevents it from rotating. Under the action of the second spring 355, the clamping block 353 can clamp and fix blood collection tubes of different diameters. Furthermore, the arc-shaped clamping block 353 increases the contact area with the blood collection tubes, making the fixation of the test tubes more secure.

[0039] It should be understood that all the above embodiments are exemplary and not restrictive. Various modifications or variations made by those skilled in the art to the specific embodiments described above under the concept of this utility model should be within the protection scope of this utility model.

Claims

1. A blood collection tube shaking device, comprising a base (1), a turntable (2), a test tube rack (3), and a drive motor (4), wherein the turntable (2) is rotatably disposed on the upper end of the base (1) and is driven to rotate by the drive motor (4), and the test tube rack (3) is rotatably disposed on the outer wall of the turntable (2) about its axis, characterized in that: The base (1) is provided with a limiting support (11) at the upper end, and the limiting support (11) is located on the inner side of the rotating table (2), a limiting groove (12) in the shape of an inverted "Y" is formed in the side wall of the limiting support (11), a boss (31) with a width suitable for the limiting groove (12) is symmetrically arranged on the two sides of one end of the test tube rack (3), the boss (31) abuts against the limiting support (11), and the test tube rack (3) rotates with the rotating table (2), when the boss (31) rotates to the position of the limiting groove (12) in the rotating process, the test tube rack (3) can be turned by 180° around its axis under the guidance of the limiting groove (12).

2. The blood collection tube shaking device of claim 1, wherein: The test tube rack (3) comprises a rotating shaft (32), a guide block (33), a mounting block (34) and a tube clamp (35), the rotating shaft (32) is fixedly connected with the guide block (33) and the mounting block (34) at the two ends respectively, the tube clamp (35) is arranged on the outward side of the mounting block (34), a through hole (21) is formed in the side wall of the rotating table (2), and the rotating shaft (32) is rotatably inserted into the through hole (21), and the boss (31) is symmetrically arranged on the two sides of the guide block (33).

3. The blood collection tube shaking device of claim 2, wherein: The test tube rack (3) further comprises a first spring (36), the first spring (36) is sleeved on the rotating shaft (32), and the two ends thereof abut against the rotating table (2) and the guide block (33) respectively.

4. The blood collection tube shaking device of claim 2 or 3, wherein: The tube clamp (35) comprises a bottom plate (351) and a clamping plate (352), the bottom plate (351) is fixedly connected with the mounting block (34), the clamping plate (352) is arranged on the two sides of the bottom plate (351), and the bottom plate (351) and the clamping plate (352) are integrally formed in an elastic material, and one end of the clamping plate (352) arranged on the two sides of the bottom plate (351) is curled towards the opposite inner side.

5. The blood collection tube shaking device of claim 4, wherein: The inner side of the clamping plate (352) is provided with an anti-skid protrusion.

6. The blood collection tube shaking device of claim 2 or 3, wherein: The tube clamp (35) comprises a clamping block (353), a sliding rod (354) and a second spring (355), a placing groove (341) is formed in the mounting block (34), one end of the sliding rod (354) is slidably inserted into the placing groove (341) and is fixedly connected with the clamping block (353), a stop block (356) is arranged on the other end of the sliding rod (354), and the second spring (355) is sleeved on the sliding rod (354) and abuts against the clamping block (353) and the inner wall of the placing groove (341) at the two ends respectively.

7. The blood collection tube shaking device of claim 6, wherein: The cross section of the sliding rod (354) is in the shape of a rectangle.

8. The blood collection tube shaking device of claim 1, wherein: There are two groups of limiting grooves (12), and the two groups of limiting grooves (12) are arranged at the opposite sides of the limiting support (11).

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