Blood collection tube premixing mechanism and blood collection table with same

Abstract

The invention relates to the technical field of blood collection tube premixing, in particular to a blood collection tube premixing mechanism which comprises a fixedly-arranged screw pair, the two ends of the screw pair are fixedly arranged, at least one material collector is detachably installed on the outer wall of a nut piece of the screw pair, at least one manual driving component is installed below the nut piece, and the manual driving component is connected with the material collector. The lower portion of the manual driving part is arranged in a suspended mode, and the upper end of the manual driving part is horizontally connected to the corresponding end face of the nut part after being reversed through a reverser. According to the manual driving component of the blood collection tube premixing mechanism, a new control mode is developed by means of the ingenious combination of the steel wire rope, the reversing wheel and the treading ring. A nurse treads, vertical force is converted into horizontal spiral driving force of the nut piece through cooperative operation of the steel wire rope and the reverser, and composite movement of translation and rotation of the blood collection tube is achieved. By means of the innovative movement transmission mode, the premixing effect of the blood sample is remarkably improved.

Description

Technical Field

[0001] The invention relates to the technical field of blood collection tube premixing, in particular to a blood collection tube premixing mechanism and a blood collection table with the mechanism. Background Art

[0002] In the modern medical testing process, the early processing of blood collection tube samples plays a key role in the accuracy of the test results. After the blood sample is collected, the blood must be fully mixed with the additives in the blood collection tube (such as anticoagulants, coagulants, etc.) as soon as possible to maintain the stability of the sample and ensure the reliability of subsequent test indicators.

[0003] Traditional operation methods mostly rely on nurses to manually shake the blood collection tubes, which has many disadvantages. On the one hand, manual operation makes it difficult to ensure the consistency of the intensity, frequency and time of each shaking, resulting in uneven sample mixing effects, affecting the repeatability and accuracy of the test results.

[0004] For example, in routine blood tests, if the blood and anticoagulant are not mixed sufficiently, blood cells may aggregate, interfering with blood cell counts and morphological observations.

[0005] On the other hand, in the busy blood collection work in the hospital, nurses manually shaking the blood collection tubes is inefficient and consumes a lot of manpower and time. Especially during large-scale physical examinations or emergency peak hours, it can easily cause sample processing backlogs and delay diagnosis and treatment. There are some devices on the market for blood collection tube processing, but most of them only focus on the transportation function of the blood collection tube.

[0006] For example, the blood collection tube conveying mechanism disclosed in patent document CN212173432U is mainly devoted to solving the problem of stable conveying of blood collection tubes during the conveying process, avoiding misdelivery, overdelivery or underdelivery, etc., by setting up a material separation mechanism and a material discharge mechanism, and utilizing the specific structure of the channel partition to achieve orderly conveying of the blood collection tubes.

[0007] However, this patent does not involve the premixing operation of samples in blood collection tubes, and cannot meet the clinical demand for rapid and uniform mixing of blood samples after blood collection.

[0008] Some devices have sample mixing functions, but they are powered by electricity, which results in high energy consumption, large size, and the need for professional power adapters. They are difficult to promote and apply when collecting blood in temporary medical points and emergency sites in remote areas. Therefore, developing an efficient, convenient, and energy-saving blood collection tube premixing mechanism and a blood collection table with the mechanism has become a technical problem that needs to be solved urgently. Summary of the invention

[0009] The present invention is to solve one of the above-mentioned technical problems, and the technical solution adopted is: a blood collection tube premixing mechanism, including a fixedly arranged spiral pair, both ends of the spiral pair are fixedly arranged, at least one collector is detachably installed on the outer wall of the nut member of the spiral pair, at least one human-powered driving component is installed below the nut member, the lower part of the human-powered driving component is suspended, and the upper end of the human-powered driving component is horizontally connected to the corresponding end face of the nut member after being reversed by a commutator.

[0010] Based on any of the above technical solutions, further optimization is that: the spiral pair is horizontally arranged and the nut member thereon performs a reciprocating translation spiral motion along the horizontal direction.

[0011] Based on any of the above technical solutions, further optimization is that: the spiral pair includes a horizontally arranged threaded rod, both ends of the threaded rod are fixedly arranged, the nut part is threadedly screwed on the outer side wall of the threaded rod, and the thread angle of the thread of the threaded rod and the nut part is between 25°-45° and includes the endpoint value.

[0012] On the basis of any of the above technical solutions, further optimization is that: the material collector includes a plastic box, a plurality of elastic material collection cavities are arranged at intervals on the top of the plastic box, the blood collection tube is firmly inserted into the corresponding elastic material collection cavity and can ensure that the two remain relatively stable when following the premixing of the elastic material collection cavity, and the middle part of one side wall of the plastic box is detachably fixed to the plane part corresponding to the nut member. The blood collection tube inserted into the elastic material collection cavity can be held tightly, so as to ensure that the blood collection tube is not thrown out when following the rotation premixing, and ensure the effect and safety of the premixing.

[0013] Based on any of the above technical solutions, further optimization is that: the nut part includes a displacement nut which is spirally fitted on the outer wall of the threaded rod, an internal thread is provided on the inner wall in the middle of the inner cavity of the displacement nut, a stepped annular groove is provided at the end face of at least one end of the displacement nut, and a pulling tube which is movably sleeved on the outer side of the threaded rod is provided on one side of the displacement nut, and the end of the pulling tube is movably fitted into the inside of the stepped annular groove through a stepped shaft tube and the two can rotate relative to each other.

[0014] Based on any of the above technical solutions, further optimization is that: stepped annular grooves are provided on the end faces of both ends of the shift nut, and pulling tubes movably sleeved on the outer side of the threaded rod are provided on both sides of the shift nut, and the ends of the two pulling tubes are respectively inserted into the stepped annular grooves at their corresponding positions through stepped shaft tubes and can rotate relative to each other.

[0015] On the basis of any of the above technical solutions, a further optimization is as follows: circular magnet blocks are respectively and fixedly installed in the mounting blind holes on the outer side wall planes of the shifting nuts, and the circular magnet blocks are respectively used for magnetically connecting and fixing with the square iron plates fixed at the centers of the backs of the plastic boxes at their corresponding positions; the back of the plastic box abuts against the side wall plane of the shifting nut.

[0016] On the basis of any of the above technical solutions, a further optimization is as follows: the commutator includes a vertical seat fixed at the end of the threaded rod, a commutating wheel is arranged inside the vertical seat, and both ends of the central wheel shaft of the commutating wheel are respectively movably sleeved on the connecting ear seats on the corresponding sides, and the outer ends of the connecting ear seats are all fixed on the inner side wall of the vertical seat.

[0017] On the basis of any of the above technical solutions, a further optimization is as follows: the manual driving component includes a steel wire rope, the upper part of the steel wire rope is horizontally arranged and the inner end is fixed on the pulling pipe of the corresponding nut part, the steel wire rope is used for horizontally pulling the pulling pipe to horizontally shift, the outer end of the steel wire rope bypasses the commutating wheel of the commutator and is vertically downward arranged, and a stepping ring is fixedly installed at the bottom of the steel wire rope.

[0018] The present invention also provides a blood collection table with a blood collection tube premixing mechanism, which includes the blood collection tube premixing mechanism as described above, and also includes a horizontally arranged storage table board, the bottom of the storage table board is fixedly supported on the ground through legs, a central blood collection part is arranged in the middle of the storage table board, side blood collection parts are respectively arranged on both sides of the central blood collection part, the bottom of the screw pair of the blood collection tube premixing mechanism is fixedly installed on the top of the storage table board, and the space below the screw pair forms the central blood collection part for placing the patient's arm.

[0019] The lower ends of the steel wire ropes all movably pass through the through holes on the storage table board and extend below it, and a return spring is sleeved on the outer side wall of the steel wire rope between the stepping ring and the storage table board, the top of the return spring abuts against the bottom of the storage table board, and the bottom abuts against the top of the stepping ring.

[0020] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. In traditional blood collection tube premixing equipment, motors are mostly used for driving, and the motion control is relatively single. However, the manual driving component of this blood collection tube premixing mechanism, with the ingenious combination of the steel wire rope, the commutating wheel and the stepping ring, has opened up a new control mode.

[0021] Through the stepping motion of the nurse and the coordinated operation of the wire rope and the commutator, the vertical force is converted into the horizontal spiral driving force of the nut part, realizing the composite motion of the translation and rotation of the blood collection tube. This innovative motion transmission method breaks through the limitations of the conventional driving method, endows the blood collection tube with a unique motion trajectory during the premixing process, and significantly improves the premixing effect of blood samples.

[0022] 2. Due to the characteristic of human power drive, this mechanism only requires the nurse to simply step on it to keep the blood collection tube premixing mechanism running continuously. In addition, in the narrow blood collection vehicle, the convenience and flexibility of human power drive are fully demonstrated. Compared with the larger electric equipment, it occupies less space and is more convenient to operate.

[0023] 3. During the operation process, the nurse can, through their perception of the stepping force and frequency, regulate the premixing degree of the blood collection tube in real time and accurately. This intuitive operation method gives the nurse greater operation autonomy, enabling them to flexibly adjust the premixing parameters according to the characteristics of different samples and detection requirements. Compared with the traditional preset program electric equipment, this design realizes the deep coordination between humans and machines, greatly improving the professionalism and refinement of blood collection work.

[0024] 4. From the perspective of cost-effectiveness, this human power drive component brings unexpected value. On the one hand, its structure is simple, mainly composed of a wire rope, a commutator wheel and a stepping ring, greatly reducing the manufacturing and maintenance costs of the equipment. On the other hand, since no electricity is consumed; in addition, this design significantly improves work efficiency. The nurse can complete the premixing of a large number of blood collection tubes in a short time, reducing the waiting time of patients and indirectly improving the service quality and operation efficiency of medical institutions. Description of the Drawings

[0025] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the description of the specific embodiments or the prior art. In all the drawings, similar elements or components are generally identified by similar reference numerals. In the drawings, the elements or components are not necessarily drawn to actual scale.

[0026] Figure 1 It is a schematic structural diagram of the blood collection tube premixing mechanism of Embodiment 1 of the present invention.

[0027] Figure 2 It is a three-dimensional structural diagram of the first perspective of the blood collection table of Embodiment 1 of the present invention.

[0028] Figure 3 It is a three-dimensional structural diagram of the second perspective of the blood collection table of Embodiment 1 of the present invention.

[0029] Figure 4Schematic structural diagram of the blood collection tube premixing mechanism according to Embodiment 2 of the present invention.

[0030] Figure 5 Three-dimensional structural diagram of the first perspective of the blood collection table according to Embodiment 2 of the present invention.

[0031] Figure 6 Partial three-dimensional structural diagram of the second perspective of the blood collection table according to Embodiment 2 of the present invention.

[0032] Figure 7 Schematic side view structural diagram of the blood collection table according to Embodiment 2 of the present invention.

[0033] Figure 8 Partial front view structural diagram of the blood collection table according to Embodiment 2 of the present invention.

[0034] Figure 9 Schematic structural diagram of the connection part of the stepped shaft tube and the stepped annular groove of the present invention.

[0035] Figure 10 Three-dimensional structural diagram of the aggregate collector of the present invention.

[0036] In the figure: 1, threaded rod; 2, plastic box; 3, elastic aggregate cavity; 4, shifting nut; 5, pulling tube; 6, stepped shaft tube; 7, stepped annular groove; 8, placement table board; 9, central blood collection part; 10, side blood collection part; 11, round magnet block; 12, square iron plate; 13, standing seat; 14, reversing wheel; 15, connecting ear seat; 16, steel wire rope; 17, stepping ring; 18, return spring. Detailed implementation manners

[0037] Hereinafter, embodiments of the technical solutions of the present invention will be described in detail with reference to the accompanying drawings. The following embodiments are only used to illustrate the technical solutions of the present invention more clearly, and thus are only examples and cannot be used to limit the protection scope of the present invention. The specific structure of the present invention is as Figures 1-10 shown in.

[0038] Embodiment 1: A blood collection tube premixing mechanism, including a fixed screw pair, both ends of the screw pair are fixedly arranged, at least one aggregate collector is detachably installed on the outer wall of the nut member of the screw pair, at least one human-powered driving component is installed below the nut member, the lower part of the human-powered driving component is suspended, and the upper end of the human-powered driving component is horizontally connected to the corresponding end face of the nut member after being reversed by a commutator.

[0039] A collector is detachably installed on the outer wall of the nut part of the screw pair, which enables nurses to conveniently fix the collector with blood collection tubes on the nut part quickly and also facilitates disassembly after premixing is completed. This detachable design shortens the installation and disassembly time of the collector, improves work efficiency, and also facilitates cleaning, disinfection or replacement of the collector.

[0040] When the manual driving component works, the power is converted into a horizontal pulling force through a commutator and then transmitted to the nut part, causing the nut part to perform a reciprocating translational helical motion in the horizontal direction on the screw pair. This motion of the nut part drives the blood collection tube collector and the blood collection tubes inside it to rotate, realizing premixing of the blood in the blood collection tubes.

[0041] Since the manual driving component allows nurses to control the rotation speed and approximate number of turns of the nut part by controlling the force and amplitude according to different inspection items, thus achieving premixing as needed, ensuring the pertinence and accuracy of the premixing effect.

[0042] The manual driving component does not require power supply, reducing the equipment's dependence on power, lowering the equipment's purchase cost and operating cost. At the same time, due to its relatively simple structure, the maintenance cost is also low.

[0043] Based on any of the above technical solutions, a further optimization is that the screw pair is horizontally arranged and the nut part on it performs a reciprocating translational helical motion in the horizontal direction.

[0044] Based on any of the above technical solutions, a further optimization is that the screw pair includes a horizontally arranged threaded rod 1, both ends of the threaded rod 1 are fixedly arranged, and the nut part is screwed on the outer side wall of the threaded rod 1. The thread angle of the thread where the threaded rod 1 cooperates with the nut part is between 25° and 45°, including the end values.

[0045] A thread angle of 25° - 45° can more efficiently convert the horizontal pulling force converted by the manual driving component through the commutator into the rotational force of the nut. In daily work, nurses only need to apply a small pulling force to make the nut drive the blood collection tube collector to rotate and achieve blood premixing. During the peak blood collection period, a large number of blood collection tubes need to be processed, which greatly reduces the labor intensity of nurses and enables them to more efficiently achieve the premixing work of blood collection tubes.

[0046] In addition, when using a manual driving component for premixing blood collection tubes, it has the following characteristics that electric equipment cannot respond quickly to: First, based on past experience and the specific requirements of different current detection items, nurses can instantly adjust the rotation speed of the nut part by flexibly changing the force and rhythm of stepping on the manual driving part. Different blood samples have different viscosities and compositions, and thus have different requirements for premixing. This manual stepping method enables nurses to flexibly adjust the stepping force and frequency according to the actual situation to meet diverse premixing needs. In contrast, for electric driving devices, once the parameters are set, the adjustment process is relatively cumbersome, and it is difficult to achieve such instant and precise dynamic adjustment.

[0047] Second, in some remote areas for manual blood donation collection or at emergency rescue sites, the power supply is often unstable or even absent. At this time, the premixing method of the blood collection tube driven by stepping has obvious advantages.

[0048] Third, blood collection work often needs to be coordinated with other operations. The manual driving part of the stepping type allows nurses to free their hands during the operation and perform other tasks such as recording sample information and organizing blood collection tubes simultaneously. This multi-task parallel working mode significantly improves the overall work efficiency. In contrast, the operation of electric devices usually requires both hands to participate, restricting other behaviors of nurses during the operation.

[0049] Fourth, during the blood collection process, various emergencies may occur, such as the urgent addition of detection items, which puts forward new requirements for the premixing of blood collection tubes. Nurses using the manual driving device of the stepping type can quickly respond to these changes. By adjusting the stepping action, they can change the motion state of the nut part to meet the new premixing requirements. Due to the limitations of the program setting of electric devices, it is difficult to make effective adjustments in a short time.

[0050] After the aggregator is installed with the blood collection tube, using a fast magnetic attraction or other detachable fixing methods can facilitate nurses to quickly place it on the nut part, and the installation and disassembly take a short time. Nurses only need to bring the aggregator with the blood collection tube close to the nut part, and the strong magnetic force can quickly and tightly adsorb the two to complete the installation. When disassembling, only by applying appropriate external force to overcome the magnetic force can the aggregator and the nut part be easily separated. This process is simple to operate and extremely time-consuming, greatly reducing the installation and disassembly time and significantly improving work efficiency. In addition, the strong magnetic attraction fixation can also ensure that the aggregator will not accidentally fall off during the high-speed rotation process, ensuring the safety and stability of the operation.

[0051] Based on any of the above technical solutions, a further optimization is as follows: The aggregator includes a plastic box 2. A number of elastic aggregating cavities 3 are arranged at intervals on the top of the plastic box 2. The blood collection tube is tightly inserted into the corresponding elastic aggregating cavity 3 and can ensure relative stability between the two during premixing following the elastic aggregating cavity 3. The middle part of one side wall of the plastic box 2 is detachably fixed to the corresponding flat part of the nut member. The blood collection tube inserted into the elastic aggregating cavity 3 can be held tightly, so as to ensure that the blood collection tube is not thrown out during rotation premixing, and the effect and safety of premixing are ensured.

[0052] The holding action of the elastic aggregating cavity 3 on the blood collection tube effectively prevents the blood collection tube from being thrown out during high-speed rotation, reduces safety risks such as blood collection tube rupture and blood splashing, creates a safe working environment for nurses, and avoids cross-infection and other safety accidents caused by accidental sample ejection. In addition, the middle part of one side wall of the plastic box 2 is detachably fixed to the nut member, and the nurse can easily complete the installation and disassembly of the aggregator. Before blood collection, the aggregator containing the blood collection tube can be quickly installed on the nut member; after premixing is completed, it can be conveniently removed for subsequent processing, greatly saving operation time and improving work efficiency.

[0053] A number of elastic aggregating cavities 3 are arranged at intervals on the top of the plastic box 2, which can accommodate multiple blood collection tubes at the same time. When the nut member drives the aggregator to rotate, multiple blood collection tubes perform premixing operations synchronously, greatly improving the premixing efficiency and meeting the requirements for batch blood collection sample processing, especially suitable for scenarios with a large number of samples such as large hospitals and physical examination centers.

[0054] Based on any of the above technical solutions, a further optimization is as follows: The nut member includes a displacement nut 4 spirally fitted on the outer side wall of the threaded rod 1. An internal thread is provided on the inner side wall of the middle part of the inner cavity of the displacement nut 4. A stepped annular groove 7 is provided at the end face of at least one end of the displacement nut 4. A pull tube 5 is movably sleeved on the outer side of the threaded rod 1 on one side of the displacement nut 4. The end of the pull tube 5 is movably fitted and inserted into the stepped annular groove 7 through a stepped shaft tube 6, and the two can rotate relative to each other.

[0055] When the pull tube 5 is horizontally pulled, it can drive the displacement nut 4 to move. At this time, the displacement nut 4 moves and rotates at the same time. Due to the movable fit between the stepped shaft tube 6 and the stepped annular groove 7, it will not affect the spiral movement of the moving nut.

[0056] The shifting nut 4 is made of a butt-welded structure. The shifting nut 4 is split into two relatively simple half-type structures, and then welded and assembled. This method makes the installation of the stepped shaft tube 6 and the stepped annular groove 7 more convenient. The staff only needs to align the stepped shaft tube 6 of the pulling tube 5 with the stepped annular groove 7 on the shifting nut 4 for installation, without operating in a narrow or complex space, reducing the installation difficulty, shortening the installation time, and improving the production efficiency.

[0057] The pulling tube 5 and the shifting nut 4 are movably matched through the stepped shaft tube 6 and the stepped annular groove 7. When the pulling tube 5 is horizontally pulled, it can drive the shifting nut 4 to move synchronously. This not only realizes the translation of the shifting nut 4, but also utilizes the spiral fit between the threaded rod 1 and the shifting nut 4 to make the shifting nut 4 rotate during the movement.

[0058] The present invention also provides a blood collection table with a blood collection tube premixing mechanism, including the above-mentioned blood collection tube premixing mechanism, and further including a horizontally arranged storage table board 8. The bottom of the storage table board 8 is fixedly supported on the ground through legs. A central blood collection part 9 is arranged in the middle of the storage table board 8, and a side blood collection part 10 is arranged on one side of the central blood collection part 9. The bottom of the screw pair of the blood collection tube premixing mechanism is fixedly installed on the top of the storage table board 8, and the space below the screw pair forms the central blood collection part 9 for placing the patient's arm.

[0059] The lower ends of the steel wire ropes 16 all movably pass through the through holes on the storage table board 8 and extend below it. A return spring 18 is sleeved on the outer side wall of the steel wire rope 16 between the stepping ring 17 and the storage table board 8. The top of the return spring 18 abuts against the bottom of the storage table board 8, and the bottom abuts against the top of the stepping ring 17.

[0060] The design of the central blood collection part 9 and the side blood collection part 10 can not only meet the needs of single-person multi-site blood collection, but also facilitate multi-person simultaneous blood collection, increasing the flexibility and applicability of blood collection. The overall structure is designed compactly and reasonably, reducing the interference of surrounding equipment and components to patients during blood collection, enabling patients to accept blood collection more relaxedly.

[0061] Embodiment 2: Compared with Embodiment 1, the difference is that it further includes the following technical features: On the basis of any of the above technical solutions, further optimization is as follows: Stepped annular grooves 7 are arranged at the end faces at both ends of the shifting nut 4, and pulling tubes 5 are movably sleeved on the outer sides of both sides of the shifting nut 4. The end parts of the two pulling tubes 5 are movably inserted into the stepped annular grooves 7 at their corresponding positions through the stepped shaft tubes 6 respectively, and they can rotate relative to each other.

[0062] Both ends of the shift nut 4 are equipped with shift pipes 5. Nurses can flexibly choose to drive the shift pipe 5 by foot from the left or right according to the actual working scenario, and quickly control the moving direction of the shift nut 4. For example, on a blood collection table with limited space, nurses can choose the more convenient side for operation according to their own positions, greatly improving the convenience of operation and reducing the work difficulty caused by limited operation space.

[0063] During the blood premixing process, different test items have different requirements for the rotation speed and displacement of the blood collection tube. Nurses precisely adjust the pulling force and speed by operating both sides of the shift pipe 5 simultaneously to make it reciprocate quickly for premixing, thereby achieving precise control of the motion state of the shift nut 4, ensuring the best premixing effect of the blood in the blood collection tube, and improving the accuracy of test results.

[0064] During the peak blood collection period, nurses can alternately operate the bilateral shift pipes 5. When one shift pipe 5 reaches the stroke limit, quickly switch to the other side to continue pulling, avoiding waiting time, greatly improving the work efficiency of premixing the blood collection tube, and meeting the processing requirements of a large number of samples.

[0065] Based on any of the above technical solutions, a further optimization is: circular magnet blocks 11 are respectively fixedly installed in the mounting blind holes on the outer side wall planes of the shift nut 4, and the circular magnet blocks 11 are respectively used for magnetically attracting and fixedly connecting with the square iron plates 12 fixed at the centers of the backs of the plastic boxes 2 at their corresponding positions; the back of the plastic box 2 abuts against the side wall plane of the shift nut 4.

[0066] The circular magnet blocks 11 fixed in the mounting blind holes on the outer side wall plane of the shift nut 4 attract the square iron plates 12 at the centers of the backs of the plastic boxes 2. When nurses install the aggregate collector, they only need to bring the plastic box 2 close to the shift nut 4, and the attraction of the magnet can guide the aggregate collector to quickly and accurately align, without complex alignment operations, greatly saving the installation time and improving the work efficiency. In the case of heavy blood collection tasks, this advantage enables nurses to quickly complete the premixing preparation work of the blood collection tube.

[0067] The magnetic connection method enables nurses to install the aggregate collector with one hand. In actual blood collection work, nurses sometimes need to handle multiple instruments simultaneously. The characteristic of one-handed operation greatly improves the convenience of operation, making nurses' work more leisurely and efficient.

[0068] Based on any of the above technical solutions, a further optimization is: the commutator includes a vertical seat 13 fixed at the end of the threaded rod 1, a commutator wheel 14 is arranged inside the vertical seat 13, both ends of the central wheel shaft of the commutator wheel 14 are respectively movably sleeved on the corresponding connecting ear seats 15, and the outer ends of the connecting ear seats 15 are all fixed on the inner side wall of the vertical seat 13.

[0069] The reversing wheel 14 can flexibly change the direction of force transmission due to the movable socket design between the central wheel shaft and the connecting ear seat 15. When the manual driving component (such as the steel wire rope 16) drives the reversing wheel 14 to rotate, it can accurately convert the input force into the force in the required direction, driving the pulling tube 5 of the nut part to move horizontally, and realizing the premixing and conveying actions of the blood collection tube.

[0070] Based on any of the above technical solutions, a further optimization is that: the manual driving component includes a steel wire rope 16. The upper part of the steel wire rope 16 is horizontally arranged and the inner end is fixed on the pulling tube 5 of the corresponding nut part. The steel wire rope 16 is used to horizontally pull the pulling tube 5 to move horizontally. The outer end of the steel wire rope 16 bypasses the reversing wheel 14 of the commutator and is vertically downward. A stepping ring 17 is fixedly installed at the bottom of the steel wire rope 16.

[0071] One end of the steel wire rope 16 is fixed on the pulling tube 5, and the other end is connected to the stepping ring 17 after bypassing the reversing wheel 14 of the commutator. This design changes the movement direction of the steel wire rope 16 by means of the reversing wheel 14, efficiently converting the vertical force generated by the nurse stepping on the stepping ring 17 into the horizontal pulling force required by the pulling tube 5, driving the pulling tube 5 to drive the nut part to move horizontally, and realizing the premixing and conveying of the blood collection tube. The whole force transmission process is simple and efficient.

[0072] The steel wire rope 16 has high strength and small loss of flexibility. During the force transmission process, it can minimize the energy loss to the greatest extent, ensure that the energy generated by the nurse stepping is effectively applied to the pulling tube 5, and improve the driving efficiency.

[0073] The nurse controls the movement of the pulling tube 5 by stepping on the stepping ring 17. This operation method conforms to the movement habits of the human body. Compared with other complex operation methods, it is easier to master and implement. During the long-term blood collection work, the nurse can continuously operate in a relatively relaxed state, reducing the work fatigue. The nurse can accurately adjust the moving speed and displacement of the pulling tube 5 by controlling the stepping force and frequency. Facing the diverse requirements for the premixing of blood collection tubes in different detection items, it can flexibly adjust the operation to achieve premixing on demand and ensure the accuracy of the detection results.

[0074] Compared with electric drive, the manual driving component does not involve electrical equipment, avoiding safety hazards such as electrical failures and electric leakage, and providing a safer working environment for nurses and patients. In addition, the steel wire rope 16 has high strength and durability, and can withstand large pulling forces, ensuring the reliability of the driving process.

[0075] It is not restricted by the power supply. Whether it is a medical point in a remote area or a temporarily set up blood collection site, as long as there is enough operating space, it can be used normally, greatly improving the applicability and flexibility of the blood collection tube premixing and conveying mechanism.

[0076] In the case of large fluctuations in the blood collection workload, the manual drive component can flexibly adjust the operation frequency according to actual needs. It can not only handle a large number of samples during the peak blood collection period, but also reasonably control the operation intensity when the sample volume is small, achieving the effective utilization of resources.

[0077] The present invention also provides a blood collection table with a blood collection tube premixing mechanism, including the above-mentioned blood collection tube premixing mechanism. It further includes a horizontally arranged storage table board 8, the bottom of the storage table board 8 is fixedly supported on the ground through legs. A central blood collection part 9 is arranged in the middle of the storage table board 8, and a side blood collection part 10 is arranged on one side of the central blood collection part 9. The bottom of the screw pair of the blood collection tube premixing mechanism is fixedly installed on the top of the storage table board 8, and the space below the screw pair forms the central blood collection part 9 for placing the patient's arm.

[0078] The lower ends of the steel wire ropes 16 all pass through the through holes on the storage table board 8 and extend below it movably. A return spring 18 is sleeved on the outer side wall of the steel wire rope 16 between the stepping ring 17 and the storage table board 8. The top of the return spring 18 abuts against the bottom of the storage table board 8, and the bottom abuts against the top of the stepping ring 17.

[0079] Dividing the storage table board 8 into a central blood collection part 9 and a side blood collection part 10 effectively utilizes the desktop space, can place multiple blood collection tubes at the same time, meets different blood collection needs, and improves the blood collection efficiency.

[0080] The bottom of the screw pair is fixed on the top of the storage table board 8, and the space below it is used as the patient's arm placement area, making full use of the vertical space, making the overall structure more compact and not wasting space.

[0081] The related components of the blood collection tube premixing and conveying mechanism are closely combined with the blood collection table. During the blood collection process, the nurse can conveniently operate the stepping ring 17 for blood collection tube premixing without additional movement or complex operations, saving time and energy.

[0082] The design of the central blood collection part 9 and the side blood collection part 10 can not only meet the needs of single-person multi-site blood collection, but also facilitate multi-person blood collection at the same time, increasing the flexibility and applicability of blood collection. The overall structure is designed compactly and reasonably, reducing the interference of surrounding equipment and components to patients during the blood collection process, enabling patients to accept blood collection more relaxedly.

[0083] In addition, when the nurse steps on the pedal ring 17, the reset spring 18 can provide a reverse elastic force to help the pedal ring 17 quickly return to its initial position so that the nurse can perform the next pedaling operation, saving the nurse's time and energy for manual resetting and improving work efficiency. In addition, the elastic force of the reset spring 18 can offset the gravity of the pedal ring 17 and the steel wire rope 16 and other components to a certain extent, making it easier for the nurse to step on the pedal, especially during long-term and high-frequency operations, which can effectively reduce the nurse's fatigue and reduce work intensity. The influence of the pedal ring 17 failing to reset in time or shaking or jamming during the resetting process on the blood collection tube premixing operation is avoided, the stability and smoothness of the entire operation process are guaranteed, and it is helpful to improve the effect and quality of the blood collection tube premixing.

[0084] Blood collection and premixing process: Blood collection preparation and operation: In front of the blood collection table, the patient places his arm on the central blood collection part 9 below the spiral pair in the middle of the storage table 8, or on the side blood collection part 10 (which can meet the needs of single-person multi-site blood collection or multi-person blood collection at the same time). The nurse prepares the blood collection equipment, performs the blood collection operation on the patient, and injects the collected blood into the blood collection tube.

[0085] Blood collection tube placement and collection device installation: After blood collection is completed, the nurse will firmly insert the blood collection tubes into the elastic collection chamber 3 on the top of the plastic box 2 of the collection device one by one. These elastic collection chambers 3 tightly hold the blood collection tubes to prevent the blood collection tubes from being thrown out during the subsequent premixing process. Then, the nurse will magnetically connect the square iron plate 12 fixed at the center of the back of the plastic box 2 to the round magnet block 11 in the blind hole installed on the outer wall of the shift nut 4, and quickly and accurately install the collection device on the shift nut 4.

[0086] Blood collection tube premixing operation: The nurse stands at the blood collection table and steps on the pedal ring 17 with her foot. The pedal ring 17 moves downward, driving the steel wire rope 16 connected to it. The steel wire rope 16 bypasses the reversing wheel 14 of the commutator and converts the vertical force into horizontal tension. This tension is transmitted to the pull-shift tube 5. Since the pull-shift tube 5 is movably inserted into the stepped annular groove 7 of the shift nut 4 through the stepped shaft tube 6, it can drive the shift nut 4 to move on the threaded rod 1. Because the threaded rod 1 and the shift nut 4 are threaded together, the shift nut 4 will rotate while moving, thereby driving the collector and the blood collection tube inside it to rotate, and realizing the premixing of the blood in the blood collection tube. According to different examination items, the nurse can adjust the rotation speed and approximate number of turns of the shift nut 4 by controlling the strength, amplitude and frequency of the pedaling to achieve on-demand premixing.

[0087] Reset and Repeat Operation: When the nurse releases the stepping ring 17, the elastic force of the reset spring 18 causes the stepping ring 17 to quickly return to its initial position, preparing for the next stepping operation. The nurse can repeat the above premixing operation as needed to ensure sufficient premixing of the blood in the blood collection tube.

[0088] Blood Collection Tube Disassembly and Subsequent Processing: After premixing is completed, the nurse applies appropriate external force to overcome the magnetic attraction force and removes the plastic box 2 from the displacement nut 4 to complete the disassembly of the blood collection tube. Then, the premixed blood collection tube is subjected to subsequent processing, such as being sent for inspection.

[0089] The above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit them. Although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some or all of the technical features. These modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention. For those skilled in the art of this technology, any alternative improvements or transformations made to the embodiments of the present invention fall within the protection scope of the present invention.

[0090] The details not described in the present invention are all well-known technologies to those skilled in the art of this technology.

Claims

1. A blood collection tube premixing mechanism, characterized in that: It includes a fixedly arranged screw pair, both ends of which are fixedly arranged, at least one material collector is detachably mounted on the outer wall of the nut member of the screw pair, at least one human-powered driving component is mounted below the nut member, the lower part of the human-powered driving component is suspended, and the upper end of the human-powered driving component is horizontally connected to the corresponding end face of the nut member after being reversed by a commutator.

2. A blood collection tube premixing mechanism according to claim 1, characterized in that: The spiral pair is arranged horizontally and the nut member thereon performs a reciprocating translation spiral motion in the horizontal direction.

3. A blood collection tube premixing mechanism according to claim 2, characterized in that: The screw pair includes a horizontally arranged threaded rod, both ends of which are fixedly arranged, and the nut member is threadedly screwed on the outer wall of the threaded rod. The thread angle of the thread of the threaded rod and the nut member is between 25° and 45° and includes the endpoint value.

4. A blood collection tube premixing mechanism according to claim 3, characterized in that: The material collector includes a plastic box, and a plurality of elastic material collecting cavities are arranged at intervals on the top of the plastic box. The blood collection tube is firmly inserted into the corresponding elastic material collecting cavity and can ensure that the two remain relatively stable when following the premixing of the elastic material collecting cavity. The middle part of one side wall of the plastic box is detachably fixed to the plane part corresponding to the nut. The blood collection tube inserted into the elastic material collecting cavity can be tightly held, so as to ensure that the blood collection tube is not thrown out when following the rotation premixing, and ensure the effect and safety of the premixing.

5. A blood collection tube premixing mechanism according to claim 4, characterized in that: The nut member includes a displacement nut which is spirally fitted on the outer wall of the threaded rod, an inner thread is provided on the inner wall in the middle of the inner cavity of the displacement nut, a stepped annular groove is provided on the end face of at least one end of the displacement nut, and a pulling tube which is movably sleeved on the outer side of the threaded rod is provided on one side of the displacement nut, and the end of the pulling tube is movably fitted into the inside of the stepped annular groove through a stepped shaft tube and the two can rotate relative to each other.

6. A blood collection tube premixing mechanism according to claim 5, characterized in that: Stepped annular grooves are provided on the end faces of both ends of the shift nut, and pulling tubes movably sleeved on the outer side of the threaded rod are provided on both sides of the shift nut. The ends of the two pulling tubes are respectively inserted into the stepped annular grooves at their corresponding positions through stepped shaft tubes and can rotate relative to each other.

7. A blood collection tube premixing mechanism according to claim 5, characterized in that: Circular magnet blocks are fixedly installed in the mounting blind holes of each outer wall plane of the displacement nut. The circular magnet blocks are respectively used to be magnetically connected to the square iron plate fixed at the back center of the plastic box at the corresponding position; the back of the plastic box abuts against the side wall plane of the displacement nut.

8. A blood collection tube premixing mechanism according to claim 1, characterized in that: The commutator includes a stand fixed to the end of the threaded rod, a reversing wheel is arranged on the inner side of the stand, two ends of the central wheel shaft of the reversing wheel are movably sleeved on the connecting ear seats on the corresponding sides, and the outer ends of each connecting ear seat are fixed on the inner side wall of the stand.

9. A blood collection tube premixing mechanism according to claim 3, characterized in that: The human-powered driving component includes a steel wire rope, the upper part of which is horizontally arranged and the inner end of which is fixed on the pulling tube of the corresponding nut member. The steel wire rope is used to horizontally pull the pulling tube to shift horizontally. The outer end of the steel wire rope passes around the reversing wheel of the commutator and is arranged vertically downward. A pedal ring is fixedly installed at the bottom of the steel wire rope.

10. A blood collection table with a blood collection tube premixing mechanism, characterized in that: The blood collection tube premixing mechanism comprises the blood collection tube premixing mechanism as claimed in claim 9, and further comprises a horizontally arranged storage table, the bottom of the storage table is fixedly supported on the ground by legs, a central blood collection part is arranged in the middle of the storage table, and side blood collection parts are arranged on both sides of the central blood collection part, the bottom of the spiral pair of the blood collection tube premixing mechanism is fixedly mounted on the top of the storage table, and the space below the spiral pair forms the central blood collection part for the patient's arm to be placed; The lower end of each of the steel wire ropes can move through the through hole on the storage table and extend to the bottom thereof, and a return spring is sleeved on the outer wall of the steel wire rope between the tread ring and the storage table, and the top of the return spring abuts against the bottom of the storage table, and the bottom abuts against the top of the tread ring.

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