A mobile blood collection apparatus

Abstract

A mobile blood sampling device comprises a trolley, a blood sample storage assembly installed on one side of the upper part of the trolley, a tool storage assembly installed on one side of the upper part of the trolley, a temperature regulating assembly installed in the middle of the trolley, and a garbage storage assembly installed on the lower part of the trolley. By adopting a single-tube buffer unit based on a non-Newtonian fluid, shock absorption protection is provided for each test tube, which fundamentally and significantly reduces the incidence of transport hemolysis and test tube breakage, and guarantees the source accuracy of test results. Meanwhile, the storage frame adopts a regular hexagonal honeycomb biomimetic structure, which minimizes weight and material while providing extremely high in-plane stiffness and impact resistance. As the main load-bearing structure, it efficiently disperses the impact force from the single-tube buffer unit, the weight of the device, and the load during operation to the entire trolley frame, ensuring the absolute stability of the overall device during movement and use.

Description

Technical Field

[0001] This invention relates to a blood collection device, and more particularly to a mobile blood collection device. Background Technology

[0002] Mobile blood collection carts are crucial equipment for blood sample collection in hospital wards, health check centers, and community screening settings. Traditional mobile blood collection carts typically consist of a simple cart frame, silent wheels, a table for placing blood collection consumables, and several test tube holders. Their limited functionality no longer meets the increasingly demanding requirements of modern medicine for sample quality, operational efficiency, and biosafety.

[0003] In existing technologies, some additional improvements are usually made to the basic trolley to enhance functionality, but there are some drawbacks: 1. Samples are easily damaged during transportation: Traditional test tube racks are rigid structures that only serve a storage function. The vibrations and impacts generated when the blood collection cart moves, crosses thresholds, or stops suddenly are directly transmitted to the test tubes, which can easily lead to breakage; 2. The requirement for low-temperature preservation of samples is difficult to meet.

[0004] To address the aforementioned technical issues, we provide a mobile blood collection device to meet the usage needs. Summary of the Invention

[0005] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a mobile blood collection device.

[0006] The objective of this invention is achieved as follows:

[0007] A mobile blood collection device includes: a trolley;

[0008] A blood sample storage assembly is installed on one side of the upper part of the trolley to store collected blood samples;

[0009] An appliance storage assembly is installed on one side of the upper part of the trolley;

[0010] A temperature control component is installed in the middle of the trolley to adjust the internal temperature of the blood sample storage component;

[0011] A waste storage component is installed at the bottom of the trolley to store waste generated during the blood collection process.

[0012] Furthermore, the trolley includes a body, a handle, casters, an upper panel, a partition panel, and a lower panel. A handle is installed on the rear side of the body, and casters are installed at the corners of the bottom surface of the body.

[0013] The upper part of the vehicle body cavity is provided with an upper plate, and the top surface of the upper plate is provided with a partition plate. The partition plate and the upper plate divide the upper part of the vehicle body cavity into a blood sample storage cavity and an instrument storage cavity. The lower part of the vehicle body cavity is provided with a lower plate, and a cooling cavity is formed between the lower plate and the upper plate. A waste storage cavity is formed between the lower plate and the vehicle body.

[0014] Furthermore, the blood sample storage assembly includes a blood sample storage box lid, a storage frame, telescopic buckles, elastic posts, and a frame slider. The blood sample storage box lid is installed at the top of the blood sample storage cavity. Several telescopic buckles are respectively provided on the left and right side walls of the blood sample storage cavity. The telescopic buckles are U-shaped. The frame slider is slidably connected to the inside of the telescopic buckle. One end of the frame slider is fixedly connected to the storage frame. Several storage holes are opened through the surface of the storage frame. Elastic posts are provided on the outside of the frame slider, and the elastic posts face the inside of the telescopic buckles.

[0015] Furthermore, the blood sample storage assembly includes a single-tube buffer unit, and the single-tube buffer unit is installed in the storage hole.

[0016] Furthermore, the storage hole has a polygonal structure.

[0017] Furthermore, the inner wall of the storage hole is provided with several guide plates, and the single-tube buffer unit is installed on the inner side of the guide plates.

[0018] Furthermore, the single-tube buffer unit includes a buffer tube, an outer connecting rod, a ball bearing, an inner limiting ring, a medium bag, and a limiting band. The outer wall of the buffer tube is provided with several outer connecting rods, and the ends of the outer connecting rods are provided with receiving grooves. The ball bearings are placed in the receiving grooves and roll freely in the receiving grooves. The inner side of the guide plate is provided with a guide groove. When the buffer tube is inserted into the storage hole, the ball bearings at the ends of the outer connecting rods move downwards along the guide grooves for guidance and limiting. Several inner limiting rings are provided in the lower part of the inner cavity of the buffer tube. The top of the medium bag is fixedly connected to the middle part of the inner cavity of the buffer tube, and the two ends of several limiting bands are fixedly connected to the two sides of the bottom end of the buffer tube.

[0019] Furthermore, the appliance storage assembly includes an appliance storage box cover, a sliding drawer, a drawer handle, and a drawer slide. The appliance storage box cover is installed at the top of the appliance storage cavity. A drawer slot is provided through the front side wall of the appliance storage cavity. Several sets of drawer slides are installed on the left and right side walls of the appliance storage cavity. A sliding drawer is installed between two drawer slides. A drawer handle is installed on the outside of the sliding drawer.

[0020] Furthermore, a limiting frame is installed on the bottom surface of the appliance storage box cover.

[0021] Furthermore, an ultraviolet disinfection lamp is installed on the upper part of the device storage cavity.

[0022] Furthermore, the temperature control component includes a semiconductor cooling plate, a temperature equalization element, a heat dissipation substrate, heat dissipation fins, and a cooling fan. A cooling groove is formed through the bottom surface of the blood sample storage chamber. A semiconductor cooling plate is installed in the cooling groove, with the cold side of the semiconductor cooling plate facing the blood sample storage chamber and the hot side facing the cooling chamber. A temperature equalization element is installed on the bottom surface of the blood sample storage chamber. Three heat dissipation substrates are installed on the left, center, and right sides of the bottom surface of the semiconductor cooling plate. Several heat dissipation fins are installed on the bottom surface of the heat dissipation substrates. The density of the heat dissipation fins on the bottom surface of the heat dissipation substrates on the left and right sides is less than the density of the heat dissipation fins on the bottom surface of the heat dissipation substrates in the center. Several cooling fans are installed on both the left and right side walls of the cooling chamber.

[0023] Furthermore, the temperature equalization component includes a temperature equalization bag and a fixing frame. The fixing frame is S-shaped, and the bottom surface of the blood sample storage cavity is fitted with the fixing frame. The temperature equalization bag is fixedly connected to the inner wall of the fixing frame.

[0024] Furthermore, the waste storage assembly includes a waste bin, a push-out rod, a bin slide rail, and a switch door. The switch door is installed on the side wall of the waste storage chamber, and a return pull rope is installed on the rear side of the switch door. The other end of the return pull rope is fixedly connected to the side wall of the waste storage chamber. The push-out rod is installed on the side wall of the waste storage chamber, and the output end of the push-out rod is fixedly connected to one side of the waste bin. A bin slide rail is installed between the waste bin and the bottom surface of the waste storage chamber.

[0025] Advantages of this invention:

[0026] 1. The technical solution of this application can comprehensively and adaptively ensure the safety of blood samples. By employing a single-tube buffer unit based on non-Newtonian fluids, shock absorption protection is provided for each test tube. During normal operation, the fluid is soft, and the test tubes are easily handled; in the event of severe impact, the fluid hardens within milliseconds, evenly dispersing and absorbing the impact force, fundamentally and significantly reducing the incidence of transport-induced hemolysis and test tube breakage, ensuring the accuracy of test results from the source. Simultaneously, the storage frame adopts a hexagonal honeycomb biomimetic structure, providing extremely high in-plane stiffness and impact resistance while minimizing weight and material usage. As the main load-bearing structure, it efficiently distributes the impact force from the single-tube buffer unit, the weight of the equipment, and the load during operation to the entire trolley frame, ensuring the absolute stability of the entire equipment during movement and use.

[0027] 2. The technical solution of this application achieves active and precise cooling of test tubes through a semiconductor refrigeration temperature control system, providing cooling capacity for samples requiring cryogenic preservation. This ensures quiet and reliable operation of the entire device whether in motion or stationary, meeting the demanding cryogenic transport requirements for multiple samples. Attached Figure Description

[0028] Figure 1 A schematic diagram of a mobile blood collection device. Figure 1 .

[0029] Figure 2 A schematic diagram of a mobile blood collection device. Figure 2 .

[0030] Figure 3 This is a cross-sectional structural diagram of a mobile blood collection device.

[0031] Figure 4 A diagram showing the opening of the blood sample storage box lid.

[0032] Figure 5 Schematic diagram of the structure of the appliance storage component and temperature control component Figure 1 .

[0033] Figure 6 Schematic diagram of the structure of the appliance storage component and temperature control component Figure 2 .

[0034] Figure 7 This is a schematic diagram of a single-tube buffer unit.

[0035] Figure 8 This is a cross-sectional view of a single-tube buffer unit.

[0036] In the diagram: 1. Trolley, 11. Vehicle body, 111. Blood sample storage chamber, 112. Instrument storage chamber, 113. Cooling chamber, 114. Waste storage chamber, 12. Handle, 13. Casters, 14. Upper panel, 15. Divider, 16. Lower panel;

[0037] 2. Blood sample storage assembly; 21. Blood sample storage box lid; 22. Storage frame; 221. Storage hole; 23. Telescopic buckle; 24. Elastic column; 25. Frame slider; 26. Guide plate; 261. Guide groove; 27. Single tube buffer unit; 271. Buffer tube; 272. Outer connecting rod; 273. Ball bearing; 274. Inner limiting ring; 275. Media bag; 276. Limiting band;

[0038] 3. Utensil storage components; 31. Utensil storage box lid; 32. Sliding drawer; 33. Drawer handle; 34. Drawer slide; 35. Ultraviolet disinfection lamp;

[0039] 4. Temperature control components; 41. Semiconductor cooling plate; 42. Heat spreader; 421. Heat spreader bag; 422. Fixing bracket; 43. Heat dissipation substrate; 44. Heat dissipation fins; 45. Heat dissipation fan;

[0040] 5. Waste storage components, 51. Waste bin, 52. Push-out pole, 53. Bin slide rail, 54. Opening and closing door. Detailed Implementation

[0041] To enable those skilled in the art to better understand the technical solutions in this application, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of this application.

[0042] This application provides a mobile blood collection device.

[0043] Example 1, as Figure 1-8 As shown.

[0044] A mobile blood collection device includes a trolley 1, which constitutes the main structure of the device. When moving, the trolley 1 can be pushed to move the device.

[0045] The trolley 1 includes a body 11, a handle 12, casters 13, an upper plate 14, a partition plate 15, and a lower plate 16. The handle 12 is installed on the rear side of the body 11, and casters 13 are installed at the corners of the bottom surface of the body 11. The casters 13 are preferably casters with a self-locking structure, and those skilled in the art can choose them themselves.

[0046] An upper plate 14 is provided on the upper part of the inner cavity of the vehicle body 11. A partition plate 15 is provided on the top surface of the upper plate 14. The partition plate 15 and the upper plate 14 divide the upper part of the inner cavity of the vehicle body 11 into a blood sample storage cavity 111 and an instrument storage cavity 112. A lower plate 16 is provided on the lower part of the inner cavity of the vehicle body 11. A cooling cavity 113 is formed between the lower plate 16 and the upper plate 14, and a waste storage cavity 114 is formed between the lower plate 16 and the vehicle body 11. The upper plate 14, the partition plate 15, and the lower plate 16 divide the inner cavity of the vehicle body 11, realizing the division of areas. Different functions are realized in different cavities.

[0047] A mobile blood collection device includes a blood sample storage component 2, which is installed on one side of the upper part of the trolley 1 to store blood samples. Specifically, the blood sample tubes after blood collection are placed into the blood sample storage component 2 for preservation and transportation.

[0048] The blood sample storage assembly 2 includes a blood sample storage box lid 21, a storage frame 22, a telescopic buckle 23, an elastic post 24, and a frame slider 25. The blood sample storage box lid 21 is installed at the top of the blood sample storage cavity 111. One side of the blood sample storage box lid 21 is rotatably connected to the top of the blood sample storage cavity 111, and the other side is detachably connected to the top of the blood sample storage cavity 111. That is, the blood sample storage box lid 21 can be opened along its rotatable connection point, allowing medical personnel to place the collected blood sample tubes into it for storage and transportation.

[0049] The blood sample storage chamber 111 has several telescopic buckles 23 on its left and right side walls. The telescopic buckles 23 are U-shaped and are slidably connected to a frame slider 25 on the inner side. One end of the frame slider 25 is fixedly connected to the storage frame 22. The surface of the storage frame 22 has several storage holes 221 through it. The storage holes 221 are used to store blood sample tubes.

[0050] A spring post 24 is provided on the outer side of the frame slider 25, and the spring post 24 faces the inner side of the telescopic buckle 23. That is, the storage frame 22 can slide within the telescopic buckle 23, and the spring post 24 is made of a variable material such as rubber to absorb vibration. The initial length of the spring post 24 is equal to the length from the frame slider 25 to the inner side of the telescopic buckle 23. When the device collides or stops suddenly during movement, the storage frame 22 will continue to slide forward, thereby squeezing the front spring post 24, which absorbs the vibration and protects the blood sample tube placed inside the storage frame 22.

[0051] The storage hole 221 has a polygonal structure. Preferably, the storage hole 221 has a hexagonal structure. This makes the entire storage frame 22 have a honeycomb constraint structure. When an impact occurs, the impact force it bears can be evenly distributed throughout the entire storage frame 22, avoiding local stress concentration.

[0052] The blood sample storage assembly 2 includes a single-tube buffer unit 27, and the single-tube buffer unit 27 is installed in the storage hole 221.

[0053] Each single-tube buffer unit 27 can be replaced independently after contamination or damage, resulting in low cost; it allows for the mixed use of single-tube buffer units 27 with different inner diameters to accommodate different types of test tubes (such as glass, plastic, and those with different diameters).

[0054] The inner wall of the storage hole 221 is provided with a plurality of guide plates 26, and the single tube buffer unit 27 is installed on the inner side of the guide plate 26. The guide plate 26 serves to guide and limit the single tube buffer unit 27, making it easy for the single tube buffer unit 27 to be placed into the storage hole 221; at the same time, it also limits and fixes the single tube buffer unit 27 placed therein.

[0055] The single-tube buffer unit 27 includes a buffer tube 271, an outer connecting rod 272, a ball bearing 273, an inner limiting ring 274, a medium bag 275, and a limiting band 276. The outer wall of the buffer tube 271 is provided with several outer connecting rods 272, each with a receiving groove at its end. A ball bearing 273 is placed in the receiving groove and rolls freely within it. A guide groove 261 is provided on the inner side of the guide plate 26.

[0056] When the buffer tube 271 is inserted into the storage hole 221, the ball bearing 273 at the end of the outer connecting rod 272 moves downward along the guide groove 261 for guidance and positioning. The design of the guide plate 26, the guide groove 261, the outer connecting rod 272, and the ball bearing 273 ensures the precise alignment of the single-tube buffer unit 27 during insertion.

[0057] The lower part of the inner cavity of the buffer tube 271 is provided with several inner limiting rings 274. The top of the medium bag 275 is fixedly connected to the middle of the inner cavity of the buffer tube 271. The medium bag 275 is filled with a non-Newtonian fluid, such as a high-concentration starch microparticle suspension. The medium bag 275 is annular with a central opening for inserting test tubes. Because the medium bag 275 is filled with a non-Newtonian fluid, it can provide adaptive damping. When stationary or moving slowly, the fluid is soft, and the blood sample test tube is easy to insert and remove; when suddenly shaken violently, the fluid molecular chains instantly "lock" and harden, evenly dispersing the impact force and greatly buffering the acceleration, thus cushioning the blood sample test tube. At the same time, in conjunction with the honeycomb-shaped storage frame 22, the "instantaneous hardening" effect of the medium bag 275 is transformed into an overall, controllable structural support, avoiding local stress concentration.

[0058] Several limiting bands 276 are fixedly connected at both ends to the bottom sides of the buffer tube 271. The limiting bands 276 are distributed at equal intervals, with their middle parts overlapping to form a mesh structure.

[0059] In use, insert the blood sample tube into the buffer tube 271, and slowly insert the bottom of the tube into the central cavity of the medium bag 275, passing through several inner limiting rings 274 until the bottom is intercepted by the limiting band 276. At this point, the blood sample tube placement is complete.

[0060] A mobile blood collection device includes an instrument storage assembly 3, which is installed on one side of the upper part of the trolley 1 to store some blood collection instruments and commonly used medicines.

[0061] The instrument storage assembly 3 includes an instrument storage box cover 31, a pull-out drawer 32, a drawer handle, and drawer slides 34. The instrument storage cavity 112 has an instrument storage box cover 31 installed at its top. A drawer slot is formed through the front side wall of the instrument storage cavity 112. Several sets of drawer slides 34 are installed on the left and right side walls of the instrument storage cavity 112. A pull-out drawer 32 is installed between two drawer slides 34, and a drawer handle is installed on the outside of the pull-out drawer 32. In use, pulling the drawer handle 33 will extend the pull-out drawer 32, facilitating the storage of blood collection instruments and commonly used medicines.

[0062] One side of the instrument storage box cover 31 is rotatably connected to one side of the top of the instrument storage cavity 112, meaning the instrument storage box cover 31 can be opened along the rotatable connection and flipped to the other side, its back side can be used as a blood collection operating table. A limit frame is installed on the bottom surface of the instrument storage box cover 31. When the bottom surface of the instrument storage box cover 31 is used as an operating table, the limit frame can restrict the range and prevent the instruments from falling.

[0063] An ultraviolet disinfection lamp 35 is installed on the upper part of the instrument storage cavity 112. This lamp sterilizes the bottom surface of the instrument storage box lid 31, preventing infection of the patient during blood collection. Simultaneously, instruments requiring sterilization can be removed from the pull-out drawer 32 and placed into the instrument storage cavity 112 for simultaneous irradiation and disinfection.

[0064] A mobile blood collection device includes a temperature control component 4 installed in the middle of the trolley 1 to adjust the internal temperature of the blood sample storage component 2, ensuring that the blood sample is in a low-temperature environment during transportation, in order to adapt to samples that require low-temperature transportation (such as coagulation factors, blood glucose, and blood gas analysis samples).

[0065] The temperature control component 4 includes a semiconductor cooling plate 41, a temperature equalization element 42, a heat dissipation substrate 43, heat dissipation fins 44, and a heat dissipation fan 45. A cooling groove is formed through the bottom surface of the blood sample storage cavity 111, and the semiconductor cooling plate 41 is installed in the cooling groove.

[0066] The semiconductor cooling plate 41 is a thermoelectric cooling element, essentially a solid-state energy transport device based on the Peltier effect. Those skilled in the art can select the appropriate model. The outer conductor cooling plate is powered by an external power supply; simultaneously, the semiconductor cooling plate 41 is connected to an external PWM drive module and control unit to control the semiconductor cooling plate 41, precisely controlling the average voltage and current, thereby steplessly adjusting the cooling power. Temperature sensors are installed on both the blood sample storage chamber 111 and the cold end of the semiconductor cooling plate 41, allowing for more precise control of the semiconductor cooling plate 41's cooling operation through feedback from the two temperature sensors.

[0067] The cold side of the semiconductor cooling plate 41 faces the blood sample storage chamber 111, and the hot side faces the cooling chamber 113. A temperature equalization element 42 is installed on the bottom surface of the blood sample storage chamber 111. The temperature equalization element 42 includes a temperature equalization bag 421 and a fixing frame 422. The fixing frame 422 is S-shaped and is fixedly connected to the inner wall of the fixing frame 422. The temperature equalization bag 421 is filled with a liquid with a high specific heat capacity. By absorbing the cold energy of the semiconductor cooling plate 41 and slowly releasing it, the temperature inside the blood sample storage chamber 111 is kept stable, reducing fluctuations. Furthermore, after the semiconductor cooling plate 41 malfunctions and stops working, the temperature equalization bag 421 can continuously release cold energy, providing additional low-temperature time for the blood sample tubes.

[0068] Three heat dissipation substrates 43 are respectively mounted on the left, center, and right sides of the bottom surface of the semiconductor cooling plate 41. Several heat dissipation fins 44 are mounted on the bottom surface of each heat dissipation substrate 43. The density of the heat dissipation fins 44 on the bottom surface of the left and right side heat dissipation substrates 43 is less than that on the bottom surface of the center heat dissipation substrate 43. Several cooling fans 45 are mounted on both the left and right side walls of the cooling cavity 113. The cooling fans 45 are silent fans, enabling the cooling cavity 113 to achieve directional airflow from front to back, effectively dissipating the heat dissipated from the hot end of the semiconductor cooling plate 41.

[0069] The array design of the heat dissipation fins 44 is divided into three zones: front, middle, and rear. The heat dissipation fins 44 are sparse in the front zone to guide airflow in; the middle zone is the most dense and is the main heat dissipation zone; the rear zone is sparse again to facilitate the exhaust of hot air and reduce wind resistance.

[0070] A mobile blood collection device includes a waste storage component 5, which is installed under the trolley 1 to store waste generated during the blood collection process.

[0071] The waste storage assembly 5 includes a waste bin 51, an extension rod 52, a bin slide rail 53, a door 54, and a waste disposal switch. The door 54 is installed on the side wall of the waste storage chamber 114. A return pull rope is installed on the rear side of the door 54, and the other end of the return pull rope is fixedly connected to the side wall of the waste storage chamber 114. Normally, the return pull rope pulls the door 54 tight, making it closed. The extension rod 52 is installed on the side wall of the waste storage chamber 114. The extension rod 52 is an electric push rod; any model can be selected by those skilled in the art. The output end of the push rod is fixedly connected to one side of the waste bin 51. A bin slide rail 53 is installed between the waste bin 51 and the bottom surface of the waste storage chamber 114. The waste disposal switch is installed on the bottom surface of the trolley 1 near the door 54. In use, medical personnel can kick the waste disposal switch upwards with the back of their foot. After being kicked, the push-out pole 52 is activated, which drives the trash can 51 to push forward and push open the switch door 54, at which point medical staff can throw the trash into it.

[0072] When using this invention:

[0073] 1. Preparations:

[0074] Push the handle to move the device to a stable position in the blood collection area using the casters.

[0075] Turn on the temperature control component to start the semiconductor cooling plate and pre-cool the blood sample storage chamber to the set temperature (usually 2~8℃). Observe whether the cooling fan is working properly to ensure that the cooling chamber dissipates heat well.

[0076] Take out the necessary blood collection equipment (blood collection needles, blood collection tubes, disinfectant swabs, etc.) from the pull-out drawer. At the same time, turn on the ultraviolet disinfection lamp to disinfect the equipment and the back of the equipment storage box lid.

[0077] 2. Procedures during blood collection:

[0078] Open the equipment storage box lid and proceed with the blood collection procedure.

[0079] After blood collection is completed, select a suitable single-tube buffer unit for the blood collection tube and insert it into the medium bag inside the buffer tube until the bottom end contacts the limiting band.

[0080] Used medical waste such as needles and cotton swabs should be disposed of in the waste bins in the waste storage compartment.

[0081] It should be noted that, in this document, relational terms such as “first” and “second” are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus.

[0082] Other embodiments of this application will readily occur to those skilled in the art upon consideration of the specification and practice of the application disclosed herein. This application is intended to cover any variations, uses, or adaptations of this application that follow the general principles of this application and include common knowledge or customary techniques in the art not disclosed herein. The specification and embodiments are to be considered exemplary only, and the true scope and spirit of this application are indicated by the claims. It should be understood that this application is not limited to the precise structures described above and shown in the drawings, and various modifications and changes can be made without departing from its scope. The scope of this application is limited only by the appended claims.

Claims

1. A mobile blood collection device, characterized in that, include: trolley; A blood sample storage assembly is installed on one side of the upper part of the trolley to store collected blood samples; The trolley includes a body, handle, casters, upper panel, partition panel, and lower panel. A handle is installed on the rear side of the body, and casters are installed at the corners of the bottom surface of the body. The upper part of the vehicle body cavity is provided with an upper plate, and the top surface of the upper plate is provided with a partition plate. The partition plate and the upper plate divide the upper part of the vehicle body cavity into a blood sample storage cavity and an instrument storage cavity. The lower part of the vehicle body cavity is provided with a lower plate. A cooling cavity is formed between the lower plate and the upper plate, and a waste storage cavity is formed between the lower plate and the vehicle body. The blood sample storage assembly includes a blood sample storage box lid, a storage frame, telescopic buckles, elastic posts, and a frame slider. The blood sample storage box lid is installed at the top of the blood sample storage cavity. Several telescopic buckles are respectively provided on the left and right side walls of the blood sample storage cavity. The telescopic buckles are U-shaped. The frame slider is slidably connected to the inside of the telescopic buckle. One end of the frame slider is fixedly connected to the storage frame. Several storage holes are opened through the surface of the storage frame. Elastic posts are provided on the outside of the frame slider, and the elastic posts face the inside of the telescopic buckles. The storage hole has a polygonal structure, which makes the entire storage frame have a honeycomb constraint structure. The blood sample storage assembly includes a single-tube buffer unit, and the single-tube buffer unit is installed in the storage hole; The inner wall of the storage hole is provided with several guide plates, and the single tube buffer unit is installed on the inner side of the guide plates; The single-tube buffer unit includes a buffer tube, an outer connecting rod, a ball bearing, an inner limiting ring, a medium bag, and a limiting band. The outer wall of the buffer tube is provided with several outer connecting rods, and the ends of the outer connecting rods are provided with receiving grooves. The ball bearings are placed in the receiving grooves and roll freely in the receiving grooves. The inner side of the guide plate is provided with a guide groove. When the buffer tube is inserted into the storage hole, the ball bearings at the ends of the outer connecting rods move downward along the guide grooves for guidance and limiting. Several inner limiting rings are provided in the lower part of the inner cavity of the buffer tube. The top of the medium bag is fixedly connected to the middle part of the inner cavity of the buffer tube. The two ends of several limiting bands are fixedly connected to the two sides of the bottom end of the buffer tube. An appliance storage assembly is installed on one side of the upper part of the trolley; A temperature control component is installed in the middle of the trolley to adjust the internal temperature of the blood sample storage component; A waste storage component is installed at the bottom of the trolley to store waste generated during the blood collection process.

2. The mobile blood collection device according to claim 1, characterized in that: The appliance storage assembly includes an appliance storage box cover, a sliding drawer, a drawer handle, and a drawer slide. The appliance storage box cover is installed at the top of the appliance storage cavity. A drawer slot is opened through the front side wall of the appliance storage cavity. Several sets of drawer slides are installed on the left and right side walls of the appliance storage cavity. A sliding drawer is installed between two drawer slides. A drawer handle is installed on the outside of the sliding drawer.

3. A mobile blood collection device according to claim 2, characterized in that: A limit frame is installed on the bottom surface of the lid of the equipment storage box.

4. A mobile blood collection device according to claim 1, characterized in that: An ultraviolet disinfection lamp is installed on the upper part of the instrument storage cavity.

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