A portable hemolytic test tube rack

Abstract

This utility model discloses a portable anti-hemolysis test tube holder, relating to the field of medical device technology. The utility model features a housing with a second support fixedly connected to its bottom inner side. Four sets of fixed rods are fixedly connected to the surface of the second support. Movable rods are movably sleeved on the inner sides of the four sets of fixed rods. A first support is fixedly connected to the upper side of each movable rod. A support rod is fixedly connected to the center of the surface of the second support. The support rod is threadedly connected to a screw. The screw is rotatably connected to the first support via a thrust bearing. The first and second supports are made of polystyrene to form a heat insulation layer. The transparent housing allows direct observation of the sample status without opening the cover, reducing temperature fluctuations. The operating point at the top of the screw provides a high-friction surface. Its ergonomic design ensures precise control of the holder's lifting and lowering even when wearing gloves.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, specifically a portable hemolytic test tube holder. Background Technology

[0002] Portable hemolysis-resistant test tube racks are lightweight supports specifically designed for the safe transport of blood samples. Their core function is to secure blood collection tubes and prevent hemolysis. They typically employ a special structure to tightly hold the test tubes in place, preventing shaking and collisions during transport. These devices are widely used in mobile scenarios such as outdoor emergency care, community blood collection, and sample transport, ensuring the integrity of blood samples before analysis and improving testing accuracy. Their lightweight and compact design makes them easy to carry and use on-site.

[0003] Test tube racks are common equipment in laboratories. These test tubes are usually placed on test tube racks for staff to use at any time. During current transportation, shaking and temperature changes can easily cause red blood cells to rupture and affect test results. Therefore, the inventor urgently needs to invent a device that can stabilize test tubes during transportation. Utility Model Content

[0004] Therefore, the purpose of this utility model is to provide a portable anti-hemolysis test tube rack to solve the technical problem that excessive shaking of test tubes during transportation can easily affect sample detection results.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a portable anti-hemolytic test tube rack, comprising a box body, a second support fixedly connected to the bottom inner side of the box body, four sets of fixing rods fixedly connected to the surface of the second support, movable rods movably sleeved on the inner side of the four sets of fixing rods, a first support fixedly connected to the upper side of the movable rods, a support rod fixedly connected to the center of the surface of the second support, a screw connected to the support rod by a thread, and the screw rotatably connected to the first support by a thrust bearing for adjusting the distance between the first support and the second support.

[0006] By adopting the above technical solutions, the integrated storage space design of the box provides a physical protective barrier for the test tubes, directly isolating them from external collisions and impacts during transportation, avoiding the risk of hemolysis caused by test tube breakage or sample vibration. At the same time, the layered support structure, with the first support 3 and the second support 4 combined with the four sets of fixed rods and movable rods in a sleeved guiding mechanism, forms a stable vertical movement track, ensuring that the support does not tilt or sway when it is raised or lowered.

[0007] Furthermore, the surface of the first support has a plurality of test tube holes, and the inner walls of the plurality of test tube holes are adhered with rubber sheets.

[0008] By adopting the above technical solution, the array of test tube holes opened in the first support achieves the separation of test tubes through standardized hole positions, physically blocking direct contact between test tubes. At the same time, the hole diameter and depth design are linked with the lifting stroke of the movable rod to ensure that the bottom of the test tube maintains a buffer gap with the second support at any support height, avoiding impact on the bottom of the test tube during transportation.

[0009] Furthermore, both the first and second supports are made of polystyrene, and the box body is made of transparent material.

[0010] By adopting the above technical solution, the first and second supports are made of polystyrene, which forms a thermal barrier by utilizing its low thermal conductivity, effectively blocking external temperature fluctuations from being transmitted into the test tube and maintaining the stability of the sample storage temperature.

[0011] Furthermore, the four sets of fixed rods and movable rods are distributed at the four corners of the second support to cooperate with the guiding lifting of the first support.

[0012] By adopting the above technical solution, the design of four sets of fixed rods and movable rods arrayed at the four corners of the second support creates a symmetrical force transmission frame. During the lifting process, this structure guides and constrains the movement trajectory of the first support through synchronous guidance at the four corners, eliminating horizontal displacement deviation and ensuring that the test tubes always remain vertical, thus avoiding collisions between test tubes or sample leakage caused by the tilting of the support.

[0013] Furthermore, a cover plate is hinged to the upper side of the box to protect and seal the interior of the box.

[0014] By adopting the above technical solution, the hinged cover completely isolates dust, moisture and biological contaminants from entering the interior of the chamber through physical sealing in the closed state, thus protecting the purity of the sample.

[0015] Furthermore, an operating point is provided on the upper side of the screw, which serves as the point of force for the operator to operate.

[0016] By adopting the above technical solution, the dedicated operating point at the top of the screw provides workers with an ergonomic force application interface, enabling tool-free one-handed operation by increasing the frictional contact area.

[0017] Furthermore, the rubber sheet is made of ethylene propylene rubber, and the rubber sheet will deform at 2 to 15 degrees to fix the test tube.

[0018] By adopting the above technical solution, the ethylene propylene rubber sheet adhered to the inner wall of the tube utilizes its unique temperature response characteristics to spontaneously deform under the low-temperature environment required by the blood sample, actively shrinking to wrap around the outer wall of the test tube to form a flexible lock.

[0019] In summary, the present invention has the following main advantages:

[0020] 1. This utility model uses a second bracket fixed to the bottom of the box, and four sets of movable rods sleeved on the fixed rod to connect the first bracket, forming a rigid support frame. The threaded transmission of the central support rod and the screw is matched with a thrust bearing, so that the distance between the first bracket and the second bracket can be precisely adjusted by rotating the operating point with one hand, which can accommodate test tubes of different heights. The inner wall of the test tube hole of the first bracket is bonded with an ethylene propylene rubber sheet, which deforms and locks the test tube at low temperature. Its elastic buffering characteristics absorb the lateral impact force during transportation to reduce shaking.

[0021] 2. This utility model uses polystyrene material to form a heat insulation layer for the first and second supports. The transparent box allows direct observation of the sample status without opening the cover, reducing temperature fluctuations. The fixed rods and movable rods are distributed at the four corners of the second support to constrain the vertical lifting trajectory of the first support. The symmetrical layout at the four corners evenly distributes the load, avoiding test tube collisions caused by the tilting of the support during transportation. Attached Figure Description

[0022] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0023] Figure 2 This is a schematic diagram of the front view of the first and second supports of this utility model;

[0024] Figure 3 This is a top view of the structure of this utility model;

[0025] Figure 4 This is a schematic diagram of the rear view structure of this utility model.

[0026] In the diagram: 1. Box body; 2. Cover plate; 3. First bracket; 4. Second bracket; 5. Movable rod; 6. Fixed rod; 7. Test tube hole; 8. Rubber sheet; 9. Screw; 10. Thrust bearing; 11. Support rod. Detailed Implementation

[0027] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0028] In this embodiment:

[0029] A portable hemolytic test tube rack, such as Figure 1-4As shown, the device includes a housing 1. A second support 4 is fixedly connected to the inner bottom of the housing 1. Four sets of fixing rods 6 are fixedly connected to the surface of the second support 4. Movable rods 5 are movably sleeved on the inner sides of the four sets of fixing rods 6. A first support 3 is fixedly connected to the upper side of the movable rods 5. A support rod 11 is fixedly connected to the center of the surface of the second support 4. A screw 9 is threadedly connected to the support rod 11. The screw 9 is rotatably connected to the first support 3 through a thrust bearing 10, used to adjust the distance between the first support 3 and the second support 4. The housing 1 integrates storage space, providing a physical protective barrier for the test tubes and directly isolating them from external collisions during transportation. The design minimizes impact and avoids the risk of hemolysis caused by test tube breakage or sample vibration. Simultaneously, the layered stent structure, with the first stent 3 and second stent 4 combined with a four-set fixed rod 6 and movable rod 5 interlocking guide mechanism, forms a stable vertical movement track, ensuring no tilting or swaying during stent lifting. The threaded transmission structure of the heart support rod 11 and screw 9 allows operators to precisely adjust the distance between the two stents, flexibly adapting to blood collection tubes of different heights, significantly improving the equipment's versatility. The mechanical transmission design of the screw 9 not only saves effort during operation but also achieves smooth lifting and lowering of the first stent 3 through the synchronous guidance of the four corner movable rods 5, completely eliminating test tube friction or compression caused by stent tilting.

[0030] See figure Figure 2 , Figure 3 The surface of the first support 3 has several test tube holes 7, and rubber sheets 8 are adhered to the inner walls of the test tube holes 7. The array of test tube holes 7 in the first support 3 achieves the separation of test tubes through standardized hole positions, physically blocking direct contact between test tubes. At the same time, the hole diameter and depth design are linked with the lifting stroke of the movable rod 5 to ensure that the bottom of the test tube maintains a buffer gap with the second support 4 at any support height, avoiding impact on the bottom of the test tube during transportation. The innovative design of the rubber sheet 8 embedded in the test tube hole 7 forms a full-length wrap-around fixation from the tube opening to the tube body, which works in conjunction with the four corner anti-vibration frame to suppress multi-dimensional vibration and minimize the probability of hemolysis.

[0031] See Figure 1 , Figure 2 , Figure 4 Both the first support 3 and the second support 4 are made of polystyrene, and the box body 1 is made of transparent material. The use of polystyrene in the first support 3 and the second support 4 forms a thermal barrier by utilizing its low thermal conductivity, which effectively blocks external temperature fluctuations from being transmitted into the test tubes and maintains the stability of the sample storage temperature. The lightweight characteristics of this material significantly reduce the overall weight of the equipment. The transparent material of the box body 1 makes it easy to hold and carry with one hand during outdoor emergency rescue, which meets the needs of mobile medical scenarios. The transparent box body 1 allows staff to directly observe the number of test tubes, the state of the samples, and the fixation status of the rubber sheet 8 without opening the lid, which greatly improves the efficiency of operation and reduces the risk of temperature fluctuations caused by frequent opening of the lid.

[0032] See figure Figure 2 Four sets of fixed rods 6 and movable rods 5 are arrayed at the four corners of the second support 4 to cooperate with the guiding and lifting of the first support 3. The design of the four sets of fixed rods 6 and movable rods 5 arrayed at the four corners of the second support 4 constructs a symmetrical force transmission frame. During the lifting process, the structure constrains the movement trajectory of the first support 3 through synchronous guidance at the four corners, eliminates horizontal displacement deviation, ensures that the test tubes always remain vertical, and avoids collisions between test tubes or sample leakage caused by the tilt of the support. The four-corner support layout evenly distributes the test tube load to the entire base of the box 1, significantly improving the equipment's anti-tipping ability and maintaining structural stability even when transported on rough roads.

[0033] See Figure 1 , Figure 4 The upper side of the box 1 is hinged with a cover plate 2 to protect and seal the inside of the box. The hinged cover plate 2 completely isolates dust, moisture and biological contaminants from entering the inside of the box 1 through physical sealing in the closed state, thus protecting the purity of the sample. Its tight fit with the box 1 forms an airtight space. Together with the thermal insulation performance of the polystyrene support, it maintains the stability of the low temperature environment inside the box and inhibits the lysis of temperature-sensitive blood cells. In the event of an accidental drop, the cover plate 2 can act as an energy-absorbing structure, preferentially absorbing the impact force and preventing the shock wave from being transmitted to the internal test tube level, thus playing a secondary protection role.

[0034] See Figure 1 , Figure 2 , Figure 3 The upper side of the screw 9 is equipped with an operating point for the operator to apply force. The dedicated operating point on the top of the screw 9 provides an ergonomic force application interface for the operator. By increasing the friction contact area, tool-free one-handed operation is achieved. Even in low-temperature scenarios where gloves are worn, torque can still be transmitted accurately, avoiding adjustment errors or screw 9 spinning freely due to hand slippage. This ensures accurate and efficient adjustment of the bracket spacing. The operating point structure strengthens the fatigue resistance of the screw 9 shaft shoulder, reduces the risk of metal deformation during long-term tightening, and ensures the service life of the transmission mechanism.

[0035] See Figure 3 The rubber sheet 8 is made of ethylene propylene rubber. The rubber sheet 8 deforms at 2 to 15 degrees Celsius to fix the test tube. The rubber sheet 8, which is attached to the inner wall of the test tube hole 7, utilizes its unique temperature response characteristics to spontaneously deform at the required environment of 2–15°C for blood samples. It actively contracts and wraps around the outer wall of the test tube to form a flexible lock. The superelasticity of the material efficiently absorbs kinetic energy when vibration is transmitted to the test tube, transforming rigid collisions into elastic buffers. This doubly prevents the red blood cells in the test tube from rupturing due to mechanical impact. The chemical inertness and anti-aging properties of ethylene propylene rubber ensure that it maintains functional stability when in contact with blood residues or disinfectants for a long time, avoiding fixation failure due to material deterioration and ensuring reliability for multiple uses.

[0036] The implementation principle of this embodiment is as follows: The operator first opens the cover plate 2 hinged to the upper side of the box 1, and drives the threaded transmission mechanism by rotating the operating point at the top of the screw 9. The screw 9 pushes the first bracket 3 through the thrust bearing 10, so that it rises and falls smoothly along the vertical guide system composed of four sets of fixed rods 6 and movable rods 5 arranged in an array at the four corners of the second bracket 4, thereby adjusting the distance between the first bracket 3 and the second bracket 4. When the distance is adapted to the target test tube height, the blood collection tube is inserted into the test tube hole 7 opened on the surface of the first bracket 3. At this time, it adheres to the inner wall of the test tube hole 7. The ethylene propylene rubber 8 spontaneously deforms in a low-temperature environment of 2–15°C. After the cover plate 2 is closed, the box 1 forms a sealed space. The second support 4 made of polystyrene and the first support 3 form a heat insulation layer to suppress external temperature fluctuations. The fixed rods 6 and movable rods 5 distributed at the four corners eliminate horizontal displacement during transportation through mechanical constraints. The rigid structure of the screw 9 and the support rod 11 maintains vertical stability. The ethylene propylene rubber sheet continuously absorbs vibration energy, so that the test tube is always in a state of physical isolation and temperature stability during the movement, fundamentally preventing hemolysis.

[0037] Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the present invention and are not intended to limit the invention. The specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations to the embodiments as needed without departing from the principles and spirit of the present invention, provided that such modifications, substitutions, and variations are within the scope of the claims of the present invention and are protected by patent law.

Claims

1. A portable anti-hemolysis test tube rack characterized by: Includes a housing (1), a second bracket (4) is fixedly connected to the inner bottom of the housing (1), four sets of fixed rods (6) are fixedly connected to the surface of the second bracket (4), movable rods (5) are movably sleeved on the inner side of the four sets of fixed rods (6), a first bracket (3) is fixedly connected to the upper side of the movable rods (5), a support rod (11) is fixedly connected to the center of the surface of the second bracket (4), the support rod (11) is connected to a screw (9) by a thread, and the screw (9) is rotatably connected to the first bracket (3) by a thrust bearing (10) for adjusting the distance between the first bracket (3) and the second bracket (4).

2. The portable anti-hemolysis test tube rack according to claim 1, characterized in that: The surface of the first support (3) is provided with a plurality of test tube holes (7), and the inner walls of the plurality of test tube holes (7) are bonded with rubber sheets (8).

3. The portable anti-hemolysis test tube rack of claim 1, wherein: The first bracket (3) and the second bracket (4) are both made of polystyrene, and the box body (1) is made of transparent material.

4. The portable anti-hemolysis test tube rack of claim 1, wherein: The four sets of fixed rods (6) and movable rods (5) are arranged in an array at the four corners of the second bracket (4) to cooperate with the guiding lifting of the first bracket (3).

5. The portable anti-hemolysis test tube rack of claim 1, wherein: The upper side of the box (1) is hinged with a cover plate (2) to protect and seal the inside of the box.

6. The portable anti-hemolysis test tube rack of claim 1, wherein: An operating point is provided on the upper side of the screw (9) for the operator to apply force.

7. The portable anti-hemolysis test tube rack of claim 2, wherein: The rubber sheet (8) is made of ethylene propylene rubber. The rubber sheet (8) will deform at 2 to 15 degrees to fix the test tube.

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