Blood testing equipment

Abstract

The invention discloses blood testing equipment in the technical field of testing equipment, the blood testing equipment comprises a sleeve box and an anticoagulant box, the sleeve box is vertically and slidably connected with a plurality of lifting plates, each lifting plate is fixedly provided with a plurality of fixing rings, each lifting plate is fixedly provided with a bottom plate, and each bottom plate is fixedly provided with a linkage rod; the sleeve box is fixedly provided with a driving motor, the movable end of the driving motor is fixedly sleeved with an adjusting disc, the adjusting disc is coaxially and rotatably connected with the inner circumference of the sleeve box, and the adjusting disc is fixedly provided with extrusion assemblies used in cooperation with the linkage rods in the circumferential direction; the extrusion assemblies rotate around the center of the adjusting disc and then are used for jacking the corresponding linkage rods upwards to be disengaged, and the linkage rods move to the highest point to be static for a period of time, then descend to the lowest point and continue to be static for a period of time at the lowest point. According to the technical scheme, the mixing uniformity of blood and an anticoagulant can be improved, and the mixing speed can also be increased.

Description

Technical Field

[0001] This invention relates to the field of testing equipment technology, specifically to a blood testing device. Background Technology

[0002] The laboratory department serves as a bridge between clinical and basic medicine, encompassing sub-disciplines such as clinical chemistry, clinical microbiology, clinical immunology, hematology, body fluid analysis, and transfusion medicine. Due to the needs of disease diagnosis and related procedures, testing patients' blood is one of the auxiliary diagnostic methods. The process by which medical personnel collect blood samples via veins or arteries is called blood collection.

[0003] When conducting blood tests in hospital laboratories, some specific tests require mixing human blood with anticoagulants in blood collection bottles. Current techniques involve adding the required dose of anticoagulant to the blood collection bottle and then manually shaking the bottle. This method requires prolonged shaking to ensure thorough mixing of the blood and anticoagulant, making it particularly unsuitable for large-scale hospital testing. Summary of the Invention

[0004] The present invention aims to provide a blood testing device that can improve the mixing speed and uniformity of blood and anticoagulant.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A blood testing device includes a sleeve box and an anticoagulant box. Multiple lifting plates are vertically slidably connected to the sleeve box along its circumference. Each lifting plate has multiple fixing rings fixed from top to bottom. A base plate is fixedly located below each lifting plate and the bottom of the base plate has a linkage rod extending into the sleeve box. A drive motor is fixedly installed in the sleeve box. An adjusting disc is fixedly sleeved on the movable end of the drive motor. The adjusting disc is coaxially rotatably connected to the inner circumference of the sleeve box. The adjusting disc has a linkage rod fixedly connected to each linkage rod along its circumference. The extrusion components are used in conjunction with each other. After rotating around the center of the sleeve box, the extrusion component pushes up the corresponding linkage rod and then disengages. The linkage rod moves to the highest point, stays still for a period of time, and then descends to the initial position, where it remains still for a period of time. The anticoagulant tank is connected to an elastic liquid-filling bladder, which is fixedly installed at the bottom of the anticoagulant tank. The liquid-filling bladder is connected to an inlet hose and an outlet hose. The outlet hose is fixedly equipped with a connector. The inlet hose is connected to the anticoagulant tank. The top of the lifting plate is fixedly equipped with an extrusion plate that abuts against the liquid-filling bladder.

[0007] Working principle and beneficial effects of the present invention:

[0008] This method involves adding anticoagulant into the anticoagulant tank, and then allowing the anticoagulant to flow into the liquid filling bladder through the inlet hose. Since the volume of the liquid filling bladder is fixed, the volume of anticoagulant poured into the bladder is also fixed. The blood collection bottle is secured by inserting it into multiple fixing rings, and the connector of the outlet hose is inserted into the blood collection bottle.

[0009] Because the lifting plate and the sleeve box are vertically slidably connected, each lifting plate has a base plate fixed below multiple fixed rings. A linkage rod extending into the sleeve box is fixed at the bottom of the base plate. An adjusting disc is fixed with a squeezing assembly that works with each linkage rod. A drive motor drives the adjusting disc to rotate, causing the squeezing assembly to rotate synchronously. The squeezing assembly quickly lifts the corresponding lifting plate, causing the lifting plate to rapidly rise the fixed blood collection bottle. After the linkage rod reaches its highest point, it remains stationary for a period of time. Then, the squeezing assembly disengages from the linkage rod, and the linkage rod automatically and rapidly falls due to gravity. After the linkage rod reaches its lowest point, it remains stationary for a period of time. This process is repeated. In other words, the trajectory of the blood collection bottle is rapid ascent followed by a period of stillness, then rapid descent followed by a period of stillness.

[0010] Furthermore, during the rapid ascent of the lifting plate, a squeezing plate is fixedly installed at the top of the lifting plate to abut against the liquid-filling bladder. The lifting plate drives the squeezing plate to rise rapidly and squeeze the liquid-filling bladder. After the liquid-filling bladder is squeezed, the anticoagulant inside the liquid-filling bladder flows into the blood collection bottle through the liquid outlet hose and connector. When the lifting plate descends rapidly, the squeezing plate disengages from the liquid-filling bladder, and the elastic liquid-filling bladder automatically recovers its expansion, generating negative pressure to draw anticoagulant from the anticoagulant tank through the liquid inlet hose. The above process can be repeated.

[0011] In this technical solution, the blood collection bottle's trajectory involves a rapid ascent followed by a period of stillness, then a rapid descent followed by a period of stillness. This is because the density of anticoagulants is typically greater than that of blood; for example, the commonly used anticoagulant heparin has a density of 2.18 g / cm³. 3 The density of blood is 1.050–1.060 g / cm³. 3Therefore, when the blood and heparin in the collection bottle rapidly rise to their highest point, the flow of heparin in the blood is slower than the flow of blood itself. By allowing the collection bottle to remain still for a period of time, the heparin has sufficient time to flow rapidly and mix within the blood. Simultaneously, the rapid descent of the collection bottle followed by a period of stillness further accelerates the rapid flow and mixing of heparin within the blood. Furthermore, this method differs from conventional techniques. Conventional techniques add the required anticoagulant to the collection bottle all at once, while this method adds anticoagulant in small, multiple amounts to the collection bottle each time it rises to its highest point, using a squeeze plate to press the filling sac. Because less anticoagulant is added each time, the flow rate of the anticoagulant within the blood is increased, improving both the uniformity and speed of mixing. This avoids the problem of adding a large amount of anticoagulant at once, which would cause slow flow and affect the mixing speed with the blood. Therefore, this technique improves both the uniformity and speed of mixing between the blood and anticoagulant.

[0012] Furthermore, the outlet hose is equipped with a first one-way valve that flows towards the connector, and the inlet hose is equipped with a second one-way valve that flows towards the filling bladder. This arrangement limits the flow direction of the anticoagulant. When the filling bladder is squeezed, the anticoagulant flows into the blood collection bottle through the first one-way valve and the connector; when the filling bladder inflates, the anticoagulant is drawn into the filling bladder through the second one-way valve, preventing the liquid in the blood collection bottle from being drawn back into the filling bladder and thus contaminating it.

[0013] Furthermore, the extrusion assembly includes fixed blocks evenly spaced along the circumferential direction of the adjusting plate. The top of the fixed block is provided with a horizontal cut surface, and the side of the fixed block is provided with an inclined surface that connects and transitions with the cut surface. The inclined surface extends downward to the adjusting plate, and the linkage rod abuts against the inclined surface and cut surface of the corresponding fixed block.

[0014] When the drive motor rotates the adjusting plate, the adjusting plate synchronously rotates the fixed block it is fixed to. The top of the fixed block has a horizontal cut surface, and the side of the fixed block has an inclined surface that connects to and transitions with the cut surface. The inclined surface extends downward to the adjusting plate. When the inclined surface passes the corresponding linkage rod, the inclined surface presses the linkage rod upward, causing it to move upward. The linkage rod drives the lifting plate and blood collection bottle to rise rapidly. The linkage rod transitions to the cut surface, which stably supports the linkage rod, causing the lifting plate and blood collection bottle to remain still for a period of time. Then the linkage rod moves to the inclined surface on the other side, and the linkage rod gradually loses the pressure from the inclined surface on that side, gradually descending onto the adjusting plate. Since there is a certain distance between the adjacent fixed blocks, the adjusting plate continues to stably support the linkage rod. At this time, the lifting plate and blood collection bottle remain still for a period of time. This achieves the goal of the blood collection bottle moving trajectory being rapid ascent followed by a period of stillness, then rapid descent followed by a period of stillness. This can improve the uniformity of blood and anticoagulant mixing and also increase the mixing speed.

[0015] Furthermore, the fixed block and the inclined surface on the opposite side of its rotation direction are provided with multiple steps, and adjacent steps are connected by inclined surfaces for transition. When the linkage rod transitions to the inclined surface on the opposite side, each step can support the linkage rod, so that the linkage rod remains stationary on each step for a period of time. This allows the blood collection bottle to maintain a stationary descent pattern multiple times during its gradual descent, which is beneficial for the anticoagulant to flow and mix in the blood.

[0016] Furthermore, a roller is rotatably connected to the bottom of the linkage rod. The rolling of the roller reduces friction and improves the smoothness of the lifting plate's movement during ascent and descent.

[0017] Furthermore, the anticoagulant tank is fixedly provided with an inverted L-shaped plate, and there are two liquid-filling bladders, one of which is fixedly located at the bottom of the anticoagulant tank and the other is fixedly located on the inverted L-shaped plate. The squeezing plate is located between the two liquid-filling bladders, and the squeezing plate alternately squeezes the two liquid-filling bladders up and down.

[0018] When the squeezing plate moves upward to the highest point, it squeezes the top fluid-filling bladder towards the blood collection bottle to add anticoagulant. When the squeezing plate moves downward to the lowest point, it squeezes the bottom fluid-filling bladder towards the blood collection bottle to add anticoagulant. This ensures that anticoagulant is added during the time the blood collection bottle remains stationary when it rises to the highest point and falls to the lowest point, thereby increasing the mixing speed of the anticoagulant and blood.

[0019] Furthermore, a rubber sleeve is fixedly provided on the fixing ring. The blood collection bottle is inserted into the fixing ring, which expands the rubber sleeve, and the elasticity of the rubber sleeve is used to fix the blood collection bottle.

[0020] Furthermore, the number of lifting plates is 2 to 6.

[0021] Furthermore, the drive motor is a servo motor or a stepper motor. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of a blood testing device according to the present invention;

[0023] Figure 2 for Figure 1 A schematic diagram of the structure of the liquid-filled bladder when it is compressed;

[0024] Figure 3 for Figure 1 Top view of the center adjustment dial;

[0025] Figure 4 This is a schematic diagram of the structure of a blood testing device in Example 2;

[0026] Figure 5 This is the front view of the fixed block in Example 3. Detailed Implementation

[0027] The following detailed description illustrates the specific implementation method:

[0028] The reference numerals in the accompanying drawings of the instruction manual include: sleeve box 1, gear ring 2, adjusting plate 3, linkage rod 4, base plate 5, blood collection bottle 6, lifting plate 7, squeezing plate 8, connector 9, liquid outlet hose 10, liquid filling bladder 11, anticoagulant tank 12, liquid inlet hose 13, rubber stopper 14, fixing ring 15, inclined plane 16, gear 17, cut surface 18, inverted L-shaped plate 19, step 20, inclined plane 21, support rod 22.

[0029] In the following statements, directional terms such as "left," "right," "up," and "down" are based on the directions shown in the diagram. In practice, if the corresponding structures are changed in the same direction based on the direction while maintaining their relative positions, it will not affect the implementation of the plan.

[0030] Example 1: A blood testing device, such as Figure 1 As shown, the device includes a sleeve box 1 and an anticoagulant box 12. The sleeve box 1 is vertically slidably connected to two lifting plates 7 along the circumferential direction. Each lifting plate 7 is fixedly provided with three fixing rings 15, and the fixing rings 15 are fixedly provided with rubber sleeves. The bottom of each lifting plate 7 is fixedly provided with a base plate 5, and the bottom of the base plate 5 is also fixedly provided with a linkage rod 4 that extends into the inside of the sleeve box 1.

[0031] A drive motor is fixedly mounted on the sleeve box 1. A gear 17 is fixedly sleeved on the movable end of the drive motor. An adjusting disc 3 is coaxially rotatably connected to the inner circumference of the sleeve box 1. A gear ring 2 that meshes with the gear 17 is fixedly sleeved on the bottom of the adjusting disc 3. An extrusion assembly that cooperates with each linkage rod 4 is fixedly mounted on the adjusting disc 3 along its circumference, such as... Figure 3 As shown, the extrusion assembly includes two fixed blocks evenly spaced along the circumference of the adjusting plate 3. Each fixed block has a horizontal cut surface 18 at its top and an inclined surface 16 on its side that is fixedly connected to and transitions with the cut surface 18. The inclined surface 16 extends downwards to the adjusting plate 3. The linkage rod 4 alternately abuts against the inclined surface 16 and the cut surface 18 of the corresponding fixed block. A support rod 22 passing through the adjusting plate 3 is fixedly installed at the bottom of the anticoagulant tank 12, and the support rod 22 is fixedly connected to the sleeve box 1.

[0032] The anticoagulant tank 12 is connected to an elastic liquid-filling bladder 11, which is fixedly located at the bottom of the anticoagulant tank 12. The liquid-filling bladder 11 is connected to an inlet hose 13 and an outlet hose 10. The outlet hose 10 is fixedly equipped with a connector 9. The inlet hose 13 is connected to the anticoagulant tank 12. The top of the lifting plate 7 is fixedly equipped with a compression plate 8 that abuts against the liquid-filling bladder 11. The outlet hose 10 is equipped with a first one-way valve that opens toward the connector 9. The inlet hose 13 is equipped with a second one-way valve that opens toward the liquid-filling bladder 11.

[0033] This method involves adding an anticoagulant (e.g., heparin) into the anticoagulant tank 12. The anticoagulant flows into the filling sac 11 through the inlet hose 13. Since the volume of the filling sac 11 is fixed, the volume of anticoagulant poured into the filling sac 11 is also fixed. The blood collection bottle 6 is then inserted into the three retaining rings 15, which expand the rubber sleeve. The elasticity of the rubber sleeve is used to fix the blood collection bottle 6 in place. The connector 9 connected to the outlet hose 10 is then inserted into the rubber stopper 14 of the blood collection bottle 6.

[0034] Since the lifting plate 7 and the sleeve box 1 are vertically slidably connected, each lifting plate 7 is fixedly provided with a base plate 5, and the bottom of the base plate 5 is also fixedly provided with a linkage rod 4 extending into the sleeve box 1. The adjusting plate 3 is fixedly provided with a fixing block that cooperates with each linkage rod 4. The gear 17 is driven to rotate by the drive motor, and the gear 17 drives the adjusting plate 3 to rotate through the gear ring 2.

[0035] The adjusting plate 3 synchronously drives the fixed block to rotate synchronously. The top of the fixed block has a horizontal cut surface 18, and the side of the fixed block has an inclined surface 16 that connects to and transitions with the cut surface 18. The inclined surface 16 extends downward to the adjusting plate 3. When the inclined surface 16 passes the corresponding linkage rod 4, the inclined surface 16 presses the linkage rod 4 upward and moves it upward. The linkage rod 4 drives the lifting plate 7 and the blood collection bottle 6 to rise rapidly. The anticoagulant in the liquid filling bag 11 is squeezed into the blood collection bottle 6 by the squeezing plate 8. Subsequently, the linkage rod 4 transitions to the cut surface 18, which stably supports the linkage rod 4, so that the lifting plate 7 and the blood collection bottle 6 remain still for a period of time. Then the linkage rod 4 moves to the inclined surface 16 on the other side. The linkage rod 4 gradually loses the squeezing of the inclined surface 16 on this side and gradually descends to the adjusting plate 3. Since there is a certain distance between the adjacent fixed blocks, the adjusting plate 3 continues to stably support the linkage rod 4. At this time, the lifting plate 7 and the blood collection bottle 6 remain still for a period of time. Furthermore, when the filling bladder 11 is squeezed by the squeeze plate 8, the anticoagulant flows into the blood collection bottle 6 through the first one-way valve and the connector 9; when the squeeze plate 8 disengages from the filling bladder 11, the compressed filling bladder 11 inflates, and the anticoagulant is drawn into the filling bladder 11 through the second one-way valve, without drawing the liquid in the blood collection bottle 6 back into the filling bladder 11, thus preventing contamination of the filling bladder 11. This process can be repeated several times.

[0036] In this technical solution, the trajectory of blood collection bottle 6 is a rapid ascent followed by a period of stillness, then a rapid descent followed by a period of stillness. Since the density of anticoagulants is usually greater than that of blood, such as heparin, a commonly used anticoagulant, the density of heparin is 2.18 g / cm3, while the density of blood is 1.050–1.060 g / cm3. Therefore, when the blood and heparin in blood collection bottle 6 rapidly rise to their highest point, the flow of heparin in the blood is slower than the flow of blood. At this time, the blood collection bottle 6 is kept still for a period of time, allowing the heparin sufficient time to flow rapidly and mix in the blood. At the same time, the blood collection bottle 6 also stops for a period of time after its rapid descent, which also accelerates the rapid flow of heparin in the blood and facilitates mixing. Furthermore, this solution differs from conventional techniques. Conventional techniques add the required anticoagulant to the blood collection bottle 6 all at once, while this solution adds anticoagulant to the blood collection bottle 6 in small amounts multiple times by squeezing the liquid filling sac 11 through the squeezing plate 8 after the blood collection bottle 6 has risen to its highest point. Because less anticoagulant is added to the blood collection bottle 6 each time, the flow rate of the anticoagulant in the blood can be increased, improving the mixing uniformity and mixing speed. This avoids the problem of adding a large amount of anticoagulant to the blood collection bottle 6 at once, which would cause a large amount of anticoagulant to flow slowly and affect the mixing speed with the blood. Therefore, this technical solution can improve the mixing uniformity of blood and anticoagulant and also improve the mixing speed.

[0037] Example 2: The difference from Example 1 is as follows: Figure 3 As shown, the anticoagulant tank 12 is fixedly equipped with an inverted L-shaped plate. There are two liquid-filling bladders 11, one fixedly located at the bottom of the tank and the other fixedly located on the inverted L-shaped plate. A squeezing plate 8 is positioned between the two bladders 11, alternately squeezing them up and down. When the squeezing plate 8 moves upward to its highest point, it squeezes the top bladder 11 towards the blood collection bottle 6, adding anticoagulant. When the squeezing plate 8 moves downward to its lowest point, it squeezes the bottom bladder 11 towards the blood collection bottle 6, adding anticoagulant. This ensures that anticoagulant is added during both the time the blood collection bottle 6 remains stationary at its highest and lowest points, increasing the mixing speed of the anticoagulant and blood.

[0038] Example 3: The difference from Example 1 is that the fixed block and the inclined surface 16 on the opposite side of its rotation direction are provided with two steps, and adjacent steps are connected by the inclined surface 16 for transition. When the linkage rod 4 transitions to the inclined surface 16 on the opposite side, each step can support the linkage rod 4, so that the linkage rod 4 remains stationary on each step for a period of time. This allows the blood collection bottle 6 to maintain a stationary descent pattern multiple times during its gradual descent, which is beneficial for the anticoagulant to flow and mix in the blood.

[0039] For those skilled in the art, numerous modifications and improvements can be made without departing from the inventive concept of this invention. These modifications and improvements should also be considered within the scope of protection of this invention, and will not affect the effectiveness of the invention or the practicality of the patent. The scope of protection claimed in this application shall be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. A blood testing device, characterized in that: The system includes a sleeve box and an anticoagulant box. The sleeve box has multiple lifting plates vertically slidably connected along its circumference. Each lifting plate has multiple fixing rings fixed from top to bottom. Below each lifting plate, a base plate is fixedly located. A linkage rod extending into the sleeve box is fixedly installed at the bottom of the base plate. The sleeve box is equipped with a drive motor. An adjusting disc is fixedly sleeved on the movable end of the drive motor. The adjusting disc is coaxially rotatably connected to the inner circumference of the sleeve box. The adjusting disc has circumferentially fixed features that cooperate with each linkage rod to... The extrusion assembly used rotates around the center of the sleeve box, then pushes up the corresponding linkage rod and disengages. The linkage rod moves to its highest point, remains stationary for a period of time, and then descends to its initial position, where it remains stationary for a period of time. The anticoagulant tank is connected to an elastic liquid-filling bladder, which is fixedly installed at the bottom of the anticoagulant tank. The liquid-filling bladder is connected to an inlet hose and an outlet hose. The outlet hose is fixedly equipped with a connector. The inlet hose is connected to the anticoagulant tank. The top of the lifting plate is fixedly equipped with an extrusion plate that abuts against the liquid-filling bladder.

2. The blood testing equipment according to claim 1, characterized in that: The outlet hose is equipped with a first check valve that opens toward the connector, and the inlet hose is equipped with a second check valve that opens toward the filling bladder.

3. The blood testing equipment according to claim 2, characterized in that: The extrusion assembly includes fixed blocks evenly spaced along the circumferential direction of the adjusting plate. The top of each fixed block has a horizontal cut surface, and the side of each fixed block has an inclined surface that connects to and transitions with the cut surface. The inclined surface extends downward to the adjusting plate, and the linkage rod abuts against the inclined surface and cut surface of the corresponding fixed block.

4. The blood testing equipment according to claim 3, characterized in that: The fixed block shown and the inclined surface on the side opposite to its rotation direction are provided with multiple steps, and adjacent steps are connected by inclined surfaces to transition between them.

5. The blood testing device according to claim 4, characterized in that: The bottom of the linkage is rotatably connected to a roller.

6. The blood testing device according to any one of claims 1 to 5, characterized in that: The anticoagulant tank is fixedly equipped with an inverted L-shaped plate. There are two liquid-filling bladders, one of which is fixedly located at the bottom of the anticoagulant tank and the other is fixedly located on the inverted L-shaped plate. The squeezing plate is located between the two liquid-filling bladders and squeezes the two liquid-filling bladders alternately from top to bottom.

7. The blood testing device according to claim 6, characterized in that: The fixing ring is fixed with a rubber sleeve.

8. The blood testing device according to claim 7, characterized in that: The number of lifting plates is 2 to 6.

9. The blood testing equipment according to claim 8, characterized in that: The drive motor is a servo motor or a stepper motor.

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