Blood sampling test tube rack

Abstract

The utility model discloses a blood sampling test tube rack, and relates to the technical field of test tube racks. The blood sampling test tube rack comprises a motor, a battery, a switch, an eccentric disc and a test tube placing cylinder, an eccentric shaft is arranged on the edge of the bottom of the eccentric disc, and the eccentric shaft is connected with a rotating shaft of the motor; a plurality of test tube placing cylinders are arranged, and the plurality of test tube placing cylinders are vertically and uniformly fixed on the eccentric disc at intervals; the motor is electrically connected with the battery through a wire, and the switch is arranged on the wire between the motor and the battery. The blood sampling test tube rack can shake up blood in the test tube, and reduces manual operation errors and sample loss risks.

Description

Technical Field

[0001] This utility model relates to the field of test tube rack technology, and in particular to a blood collection test tube rack. Background Technology

[0002] Blood collection tubes are indispensable medical consumables in clinical diagnosis and treatment. They ensure the stability of blood samples by pre-filling them with anticoagulants or clotting agents. After blood collection, the blood and additives must be thoroughly mixed to prevent sample agglutination or stratification, thereby ensuring the accuracy of test results. In traditional procedures, medical staff need to manually shake the test tubes, which has significant drawbacks.

[0003] First, manual shaking is inefficient, especially during peak blood collection periods. Medical staff need to process large numbers of samples continuously, which is physically demanding and time-consuming, potentially delaying subsequent testing procedures. Second, the standardization of manual operation varies from person to person, making it difficult to uniformly control the amplitude, frequency, and duration of shaking. Studies have shown that approximately 15% of samples fail to anticoagulate or rupture due to insufficient shaking, requiring re-collection, which not only increases patient discomfort but also wastes medical resources. Furthermore, some blood collection tubes have special specifications, such as large-capacity designs, making them prone to instability, slippage, or even breakage during manual shaking, posing a risk of biocontamination. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a blood collection tube rack that can shake the blood in the tube to reduce human error and the risk of sample loss.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0006] A blood collection tube rack includes a motor, a battery, a switch, an eccentric disk, and test tube holders. An eccentric shaft is provided on the bottom edge of the eccentric disk, and the eccentric shaft is connected to the rotating shaft of the motor. Multiple test tube holders are provided, and the multiple test tube holders are fixed vertically and evenly spaced on the eccentric disk. The motor is electrically connected to the battery through a wire, and the switch is provided on the wire between the motor and the battery.

[0007] In some embodiments, a clamping assembly is provided at the upper end of the test tube placement cylinder. The clamping assembly includes a sliding rod, a top block, a spring, and a limiting block. A through hole for the sliding rod to pass through is provided on the cylinder wall of the test tube placement cylinder. The top block is fixedly connected to the inner end of the sliding rod located in the test tube placement cylinder, and the limiting block is fixedly connected to the outer end of the sliding rod located in the test tube placement cylinder. The spring is sleeved on the sliding rod, with one end abutting against the inner wall of the test tube placement cylinder and the other end abutting against the limiting block.

[0008] In at least one embodiment, the blood collection tube rack further includes a gear transmission assembly, which includes a driving gear and a driven gear. The eccentric disk has an internal cavity, and several driving and driven gears are provided, all of which are located within the cavity of the eccentric disk. The driven gear is meshed between two driving gears. A sleeve is fitted around the outside of the motor, and a ring-shaped rack is fixed to the inner wall of the sleeve. One of the driving gears is rotatably mounted on the side of the eccentric disk away from the eccentric shaft. The side wall of the eccentric disk away from the eccentric shaft is connected to an external opening. The outer teeth of the driving gear pass through the opening of the eccentric disk and mesh with the rack on the inner wall of the sleeve. The central shaft at the upper end of the driving gear extends out of the top of the eccentric disk and is detachably connected to the test tube placement cylinder.

[0009] Compared with the prior art, this utility model achieves at least the following beneficial effects: By placing the blood collection tube in the tube placement cylinder on the eccentric disk, when the motor drives the eccentric shaft to rotate, the center of mass of the eccentric disk deviates from the center of rotation, generating a periodic centrifugal force. This centrifugal force is converted into the circular motion trajectory of the eccentric disk (asymmetric vibration), so that the blood collection tube in the fixed tube placement cylinder is simultaneously subjected to the combined force of the horizontal direction, i.e., centrifugal force, and the vertical direction, i.e., inertial force. This multidimensional vibration forces the blood and anticoagulant in the blood collection tube to form eddies, convection, and diffusion, and the mixing efficiency is significantly higher than that of manual shaking in one direction or traditional vibration equipment. There is no need for medical staff to manually shake and even out the mixture, which effectively improves the work efficiency of medical staff. Attached Figure Description

[0010] One or more embodiments of the present invention will now be described by way of example only with reference to the accompanying drawings, in which:

[0011] Figure 1 This is a schematic diagram of the structure of the blood collection tube rack according to an embodiment of the present invention;

[0012] Figure 2 for Figure 1 An unfolded diagram of the blood collection tube rack in the embodiment;

[0013] Figure 3 This is a schematic diagram of the gear transmission assembly according to an embodiment of the present utility model;

[0014] Figure 4 This is a schematic diagram of the clamping assembly according to an embodiment of the present utility model.

[0015] The following are the labels in the diagram: 1. Motor; 2. Battery; 3. Switch; 4. Eccentric disc; 41. Eccentric shaft; 5. Test tube holder; 51. Through hole; 6. Clamping assembly; 61. Sliding rod; 62. Top block; 63. Spring; 64. Limiting block; 7. Gear transmission assembly; 71. Driving gear; 72. Driven gear; 8. Sleeve; 81. Rack; 9. Base; 91. Annular groove; 10. Protective cover. Detailed Implementation

[0016] The present invention will now be described in detail with reference to exemplary embodiments shown in the accompanying drawings. However, it should be understood that the present invention 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 invention more complete and to fully convey the concept of the present invention to those skilled in the art.

[0017] In the description of this utility model, 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 only for the convenience of describing this utility model 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 utility model.

[0018] like Figures 1 to 4 As shown, in at least one embodiment of the blood collection tube rack of this utility model, it includes a motor 1, a battery 2, a switch 3, an eccentric disk 4, and test tube placement cylinders 5. An eccentric shaft 41 is provided along the bottom edge of the eccentric disk 4, and this eccentric shaft 41 is connected to the rotating shaft of the motor 1. Multiple test tube placement cylinders 5 are provided, and the multiple test tube placement cylinders 5 are vertically and evenly spaced and fixed on the eccentric disk 4. The motor 1 is electrically connected to the battery 2 via a wire, and the switch 3 is located on the wire between the motor 1 and the battery 2.

[0019] The eccentric shaft 41 is detachably connected to the motor 1 shaft. Specifically, in this embodiment, the motor 1 shaft has a downward-facing plum blossom-shaped groove with a threaded hole inside. The eccentric shaft 41 is a plum blossom-shaped convex shaft that matches and fits into the plum blossom-shaped groove on the motor 1 shaft. The eccentric shaft 41 on the eccentric disk 4 has through holes at its top and bottom, with screws inside these holes. The screws are threaded into the threaded holes on the motor 1 shaft, and tightening the screws fixes the eccentric disk 4 to the motor 1 shaft. The test tube is detachably fixed to the eccentric disk 4. Specifically, in this embodiment, it is connected by screws. The eccentric disk 4 has a threaded hole, and the test tube placement cylinder 5 has a through hole at its bottom. The screws are connected to the threaded holes on the eccentric disk 4 through these through holes. In this embodiment, the switch 3 is an adjustable speed switch, which facilitates real-time control of the eccentric disk 4's rotation speed.

[0020] refer to Figure 4Specifically, a clamping assembly 6 is provided at the upper end of the test tube placement cylinder 5. The clamping assembly 6 includes a sliding rod 61, a top block 62, a spring 63, and a limiting block 64. A through hole 51 for the sliding rod 61 to pass through is provided on the cylinder wall of the test tube placement cylinder 5. The top block 62 is fixedly connected to the inner end of the sliding rod 61 located in the test tube placement cylinder 5, and the limiting block 64 is fixedly connected to the outer end of the sliding rod 61 located in the test tube placement cylinder 5. The spring 63 is sleeved on the sliding rod 61, with one end abutting against the inner wall of the test tube placement cylinder 5 and the other end abutting against the limiting block 64.

[0021] Each test tube placement cylinder 5 is equipped with four sets of clamping components 6, which are evenly distributed. The clamping components 6 allow the test tube placement cylinder 5 to hold more blood collection tubes of different sizes, expanding its applicability. In this embodiment, the side of the top block 62 that contacts the blood collection tube is provided with anti-slip silicone. This design effectively increases the friction between the blood collection tube and the clamping components 6, thereby preventing the blood collection tube from being thrown out of the test tube placement cylinder 5 when the motor 1 rotates.

[0022] refer to Figure 3 Specifically, the blood collection tube rack also includes a gear transmission assembly 7, which includes a driving gear 71 and a driven gear 72. The eccentric disk 4 has an internal cavity, and several driving gears 71 and driven gears 72 are provided within this cavity. The driven gear 72 is meshed between two driving gears 71. A sleeve 8 is fixedly fitted onto the outside of the motor 1, and a ring-shaped rack 81 is fixedly mounted on the inner wall of the sleeve 8. One of the driving gears 71 is rotatably mounted on the side of the eccentric disk 4 away from the eccentric shaft 41. This side wall of the eccentric disk 4 away from the eccentric shaft 41 is connected to an external opening. The outer teeth of the driving gear 71 pass through the opening of the eccentric disk 4 and mesh with the rack 81 on the inner wall of the sleeve 8. The central shaft at the upper end of the driving gear 71 extends out from the top of the eccentric disk 4 and is detachably connected to the test tube placement cylinder 5.

[0023] In this system, motor 1 drives eccentric disk 4 to rotate around the axis of motor 1 via eccentric shaft 41, which is equivalent to revolution, generating periodic centrifugal force and causing the liquid in the test tube to be flung horizontally. The rack 81 on the inner wall of sleeve 8 meshes with the outer teeth of the drive gear 71 on the side of eccentric disk 4 away from eccentric shaft 41. When eccentric disk 4 revolves, drive gear 71 rotates around its own axis due to the relative motion with rack 81, which is equivalent to rotation, thereby driving the test tube placement cylinder 5 connected to it to rotate synchronously. Through this arrangement, the centrifugal force generated by revolution drives the liquid to diffuse horizontally, while rotation forms a vertical vortex through rotational shear force. The combined effect of these two factors allows the blood and anticoagulant to mix thoroughly in three-dimensional space, eliminating the "hysteresis zone" of traditional vibration equipment. In this embodiment, to reduce the potential decrease in transmission efficiency due to wear of the gear set after long-term use, a self-lubricating gear material such as graphite-containing nylon can be used, and the upper end of eccentric disk 4 is designed as a removable inspection cover for easy periodic maintenance.

[0024] To ensure the overall stability of the blood collection tube rack, the blood collection tube rack also includes a base 9, a motor 1 fixedly mounted on the upper surface of the base 9, and a battery 2 and a switch 3 mounted on the base 9.

[0025] In addition, to prevent external contamination or liquid splashing, the blood collection tube rack also includes a protective cover 10. The upper surface of the base 9 is provided with an annular groove 91 on the outside of the sleeve 8. The protective cover 10 can cover the blood collection tube in the annular groove 91.

[0026] The method of use or working principle of this blood collection tube rack is as follows: When in use, stretch the clamping component 6 on the side wall of the test tube placement cylinder 5, the sliding rod 61 drives the top block 62 to move outward, the spring 63 is compressed, then insert the blood collection tube vertically into the test tube placement cylinder 5, release the limiting block 64, the spring 63 rebounds and pushes the top block 62 to clamp the test tube, ensuring that the bottom of the blood collection tube is in contact with the test tube placement cylinder 5, and the sealing cap of the blood collection tube is facing upward to avoid liquid leakage; then close the protective cover 10, rotate the adjustable speed switch, select the appropriate rotation speed according to the test tube capacity and anticoagulant type, and turn off the speed switch after the medical staff observes and judges that the blood sample is fully mixed, and then remove the blood collection tube.

[0027] 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 rack characterized by: Including motor, battery, switch, eccentric disc and test tube placement cylinder, the bottom edge of the eccentric disc is provided with eccentric shaft which is connected with the rotating shaft of the motor, the test tube placement cylinder is provided with multiple, multiple test tube placement cylinders are vertically and uniformly fixed on the eccentric disc, the motor is electrically connected with the battery through the wire, and the switch is arranged on the wire between the motor and the battery.

2. The blood collection tube rack of claim 1, wherein: The upper end of the test tube placement cylinder is provided with a clamping assembly, the clamping assembly comprises a sliding rod, a top block, a spring and a limiting block, a through hole for penetrating the sliding rod is formed in the cylinder wall of the test tube placement cylinder, the top block is fixedly connected to the inner end of the sliding rod in the test tube placement cylinder, and the limiting block is fixedly connected to the outer end of the sliding rod in the test tube placement cylinder; the spring is sleeved on the sliding rod, one end of the spring abuts against the inner wall of the test tube placement cylinder, and the other end of the spring abuts against the limiting block.

3. The blood collection tube rack of claim 1 or 2, wherein: Further comprising a gear transmission assembly, the gear transmission assembly comprises a driving gear and a driven gear, the eccentric disc is provided with an internal cavity, the driving gear and the driven gear are provided with a plurality of gears, and are arranged in the cavity of the eccentric disc; the driven gear is arranged between the two driving gears; the motor is sleeved with a sleeve, the inner wall of the sleeve is fixedly provided with a circular gear rack; one of the driving gears is rotatably arranged on one side of the eccentric disc away from the eccentric shaft, the side wall of the eccentric disc away from the eccentric shaft is provided with an external opening, the external teeth of the driving gear are engaged with the gear rack on the inner wall of the sleeve through the opening of the eccentric disc; the central shaft of the upper end of the driving gear penetrates the top of the eccentric disc and is detachably connected with the test tube placement cylinder.

4. The blood collection tube rack of claim 3, wherein: Further comprising a base, the motor is fixedly installed on the upper surface of the base, and the battery and the switch are arranged on the base.

5. The blood collection tube rack of claim 4, wherein: Further comprising a protective cover, an annular groove is formed in the outer side of the sleeve downwardly on the upper surface of the base, and the protective cover can cover the blood collection test tube in the annular groove.

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