Blood transportation box based on Internet of Things technology

Abstract

The invention relates to the technical field of medical instruments, in particular to a blood transport box based on the Internet of Things technology, which comprises a box body and a box cover, a sterile cabin for containing blood bags is arranged in the box body, and the top of the sterile cabin is rotatably matched with a scanning table; a cabin door is hinged to the top of the sterile cabin, and a linkage unlocking mechanism used for controlling opening and closing of the cabin door is arranged in the sterile cabin. An RFID read-write module used for reading a blood bag label in the box is arranged on the scanning table, and when the scanning table is located at the initial position, the blood bag label and the RFID read-write module are arranged in a staggered mode; an indication alarm module is arranged on the outer wall of the cabin door; the control module is used for receiving patient wrist strap information and blood bag label information synchronously read by the RFID read-write module; and comparing the wrist strap information with the blood bag label information to generate a verification result instruction. Through linkage of a mechanical structure and electronic verification, the operation efficiency and the safety management and control level are improved.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, and more specifically to a blood transport box based on Internet of Things (IoT) technology. Background Technology

[0002] In modern medical systems, blood and its products (such as red blood cells, platelets, plasma, and cryoprecipitate) are indispensable biological resources for clinical emergency care, major surgeries, and the treatment of chronic diseases. However, traditional blood transportation methods have some shortcomings in terms of safety assurance and accuracy of identity matching, which urgently need to be addressed through technological innovation. Therefore, smart blood transport boxes based on Internet of Things (IoT) technology have emerged, with the main purpose of solving the multiple risks of traditional models and building a safe, traceable, and error-proof intelligent transportation mode.

[0003] In existing technologies, such as the FYL-YS series blood transport boxes, the equipment is controlled by a microcomputer, displays digital information via LEDs, and supports free temperature adjustment. The shell uses a high-density insulation layer and a condensation-proof heating system, which can adapt to high humidity environments and maintain heat for up to 72 hours. It also supports vehicle-mounted cigarette lighters and indoor 220V AC power, making it suitable for transporting blood samples in complex environments such as hospitals, fields, and remote areas. It can also be used for transporting blood products such as whole blood, plasma, and platelets.

[0004] The aforementioned products lack safety management measures and have some shortcomings in information verification. Specifically, at each stage of blood transportation and handover, staff need to verify whether the information on the blood bag label matches the paper documents or electronic system records. This process is labor-intensive, involves operational intervals, and is prone to inaccurate information verification due to process interruptions, thereby increasing the risk of transfusion errors. Therefore, it is necessary to propose a blood transportation box based on Internet of Things (IoT) technology that offers high safety and accuracy. Summary of the Invention

[0005] To address the aforementioned issues, this invention provides a blood transport box based on Internet of Things (IoT) technology. By linking mechanical structure with electronic verification, it improves operational efficiency and safety control levels; it achieves one-step operation and dual verification efficiency, thereby enhancing equipment safety and accuracy.

[0006] To achieve the above objectives, the technical solution of the present invention is as follows: A blood transport box based on Internet of Things (IoT) technology includes a box body and a box lid. The box body has a sterile compartment for holding blood bags, and a scanning table is rotatably fitted on the top of the sterile compartment. A door is hinged to the top of the sterile compartment, and a linkage unlocking mechanism for controlling the opening and closing of the door is provided inside the sterile compartment. An RFID reading and writing module for reading the blood bag label inside the box is provided on the scanning table. When the scanning table is in the initial position, the blood bag label and the RFID reading and writing module are misaligned. An indicator alarm module is also provided on the outer wall of the door.

[0007] It also includes a control module, which receives patient wristband information and blood bag label information synchronously read by the RFID reader / writer module; compares the wristband information and blood bag label information; and generates verification result instructions.

[0008] Based on the verification result command, the system sends a corresponding status prompt to the indicator and alarm module and performs matching verification on the verification result. When the verification result command matches, the system sends an unlock command to the linkage unlocking mechanism. When the verification result command does not match, the system sends an alarm command to the indicator and alarm module.

[0009] The technical principles of the above solution are as follows:

[0010] The scanning station on the top of the sterile chamber is initially misaligned with the RFID reader / writer module. By rotating the scanning station, the blood bag information slot is aligned with the RFID module, and the patient's wristband and blood bag tag information are read simultaneously. After receiving the dual-frequency RFID data, the control module automatically compares the patient's identity with the blood bag information. If they match, the linkage unlocking mechanism is triggered to open the chamber door, and the alarm module is simultaneously displayed as normal. If the information does not match, the chamber door is locked and an alarm is triggered. By linking mechanical rotation to trigger reading, electronic information verification, and physical unlocking, verification errors are reduced in the operation process, and identity traceability and safety control are achieved throughout the blood transportation process.

[0011] The above approach has the following beneficial effects:

[0012] 1. This invention improves operational efficiency and safety control by linking mechanical structure with electronic verification. The design of the scanning table being misaligned with the RFID reading and writing module in the initial state requires the operator to complete the physical alignment of the blood bag information slot with the reading and writing module by rotating the device. This simultaneously triggers the dual information reading of the patient's wristband and blood bag tag, reducing the possibility of human error in skipping the verification step and achieving verification efficiency of one-step operation and dual verification, thereby improving the safety and accuracy of the equipment.

[0013] 2. This invention reduces the risk of transfusion errors and improves the safety of clinical blood use through real-time information comparison and intelligent locking mechanisms. After receiving dual-frequency RFID data, the control module automatically performs a precise comparison between the patient's identity and the blood bag information. Only when the information matches completely is the linkage unlocking mechanism triggered to open the door; otherwise, the door is locked and an alarm is activated. This design reduces transfusion errors caused by visual fatigue and information confusion. Simultaneously, the audible and visual alarm module provides real-time feedback on the verification status, ensuring that medical staff can quickly identify abnormalities and take intervention measures.

[0014] 3. This invention uses a linkage mechanism that triggers reading by rotating the scanning table and records and verifies the results by the control module, so that every blood bag retrieval operation corresponds to a complete electronic record. This operation-as-a-record design not only meets the traceability requirements of medical quality management, but also reduces human error in recording by standardizing the operation process and reduces the workload of subsequent supplementary recording, providing technical support for the informatization and refinement of blood management.

[0015] Furthermore, the scanning stage is coaxially fixedly connected to a rotating shaft, and the rotating shaft is equipped with a damping locking mechanism for locking the rotation of the rotating shaft; the scanning stage is equipped with an inner scanning ring and an outer scanning ring, the inner scanning ring is used to read blood bag label information, and the outer scanning ring is used to read patient wristband information.

[0016] Beneficial effects: The rotation of the scanning stage can be locked by the damping locking mechanism of the rotating axis to prevent accidental rotation; the dual scanning ring design enables synchronous reading of blood bag label and patient wristband information. With the damping locking mechanism, the rotation can only be unlocked after the information is verified. This enhances the standardization of operation through mechanical locking and improves the efficiency of information verification through synchronous reading of dual rings.

[0017] Furthermore, the rotating shaft has rotation angles for the initial position, verification position, and retrieval position; when the scanning table rotates to the verification position, the RFID reading and writing module simultaneously reads the blood bag label information and wristband information; when the RFID scanning module has not completed the information verification, the damping locking mechanism restricts the rotating shaft from rotating to the retrieval position; when the scanning table rotates to the retrieval position, the driving linkage unlocking mechanism is activated to unlock.

[0018] Beneficial effects: By designing the three positions of the rotating shaft—initial position, verification position, and retrieval position—and cooperating with the damping locking mechanism to restrict rotation to the retrieval position when verification is not completed, a step-by-step verification and mechanical unlocking process is formed, reducing the risk of unauthorized access; the continuous rotational action enables information reading and unlocking triggering, simplifying the operation steps and achieving synergistic optimization of safety and efficiency.

[0019] Furthermore, the damping locking mechanism includes a brake disc fixedly connected to the rotating shaft, and a solenoid fixedly connected to the top wall of the sterile chamber; the solenoid is electrically connected to the control module, and a brake pad is fixedly connected to the bottom of the solenoid; when the verification result command does not match, the control module controls the solenoid to drive the brake pad to move, and the brake pad presses against the brake disc.

[0020] Beneficial effects: Through the mechanical cooperation of the brake disc and the solenoid-driven brake pads, the rotating shaft is pressed to form a lock when the information verification is mismatched; the control module is linked to the on and off of the solenoid in real time, and the lock is automatically released after the verification is passed, realizing the connection between safe locking and efficient unlocking, providing double protection for blood collection.

[0021] Furthermore, the linkage unlocking mechanism includes an electromagnetic lock and an opening and closing mechanism for controlling the opening and closing of the hatch. The electromagnetic lock is electrically connected to the control module. The electromagnetic lock is fixedly connected to the inner top wall of the sterile cabin. A torsion spring is sleeved on the hinge shaft between the hatch and the sterile cabin. A magnetic block is fixedly connected to the bottom of the hatch on the side away from the torsion spring. The output end of the electromagnetic lock is magnetically engaged with the magnetic block. When the verification result command matches, the control module is de-energized.

[0022] Beneficial effects: The hatch is locked by the magnetic cooperation between the electromagnetic lock and the magnetic block, and it only disengages after the control module verifies the matching information; the torsion spring design makes the hatch automatically open after unlocking, eliminating the need for manual opening. The instantaneous response and linkage of mechanical and electronic systems can enhance the safety protection effect and improve the retrieval efficiency.

[0023] Furthermore, the opening and closing mechanism includes a cam eccentrically fixedly connected to the rotating shaft, a vertical rod fixedly connected to the top wall of the sterile chamber, and a locking rod slidably engaged on the vertical rod; a locking plate is also fixedly connected to the bottom of the door near the magnetic block, the locking rod passes through the locking plate and slidably engages with the locking plate; the locking rod contacts the cam, and a tension spring is fixedly connected to the outer wall of the locking rod, with the end of the tension spring away from the locking rod fixedly connected to the vertical rod; when the scanning stage rotates to the pick-up position, the rotating shaft drives the cam to rotate to the side where the locking rod disengages from the locking plate.

[0024] Beneficial effects: Through the mechanical linkage of cam, locking rod and tension spring, the locking rod is driven to disengage from the locking plate only when the scanning table rotates to the retrieval position, forming a process of rotation into position and mechanical unlocking; the tension spring reset design ensures that the locking rod can lock the door when not in use, and with the dual protection of electronic verification, it not only strengthens security control, but also achieves unlocking through continuous rotation, simplifies operation steps and improves clinical retrieval efficiency.

[0025] Furthermore, the sterile chamber is also equipped with a release mechanism for releasing blood bags. The release mechanism includes a base fixedly connected to the bottom wall of the sterile chamber, with sliders symmetrically sliding on the outer wall of the base; connecting rods are hinged to the outer walls of the sliders, and grippers are hinged to the ends of the connecting rods away from the sliders, with the bottom ends of the grippers hinged to the base; sector gears are also symmetrically fixedly connected to the outer wall of the rotating shaft, and each sector gear meshes with a rack, with the ends of the racks away from the sector gears fixedly connected to the sliders; when the scanning stage rotates to the pick-up position, the rotating shaft drives the sector gears to rotate, and the sector gears drive the sliders away from each other through the racks.

[0026] Beneficial effects: Through the linkage design of sector gears, racks and pinions and rotating shafts, the grippers automatically release the blood bag when the scanning table rotates to the retrieval position. The mechanical structure forces the sequential operation of verification, rotation to the correct position and release of the blood bag, preventing unauthorized retrieval or accidental release. The linkage between the symmetrical grippers and the slider ensures stable gripping and smooth release of the blood bag, eliminating manual operation steps, improving retrieval efficiency, and achieving a balance between safety and convenience.

[0027] Furthermore, a gas spring is also provided on the base, and a piston cylinder is fixedly connected to the bottom wall of the sterile chamber; a piston plate is slidably fitted inside the piston cylinder, and the piston plate is fixedly connected to the rack; a transmission pipe is connected to the side of the piston cylinder away from the rack, and the end of the transmission pipe away from the piston cylinder is connected to the gas spring.

[0028] Beneficial effects: The gas is compressed by the piston plate driven by the rack and pinion, and then pushed by the air spring through the transmission tube to release the blood bag smoothly, avoiding the shaking or damage of the blood bag caused by rigid pop-out; the mechanical interlock ensures that the release is triggered only at the retrieval position to prevent the risk of misoperation, while the automatic buffer release simplifies the blood collection process and improves the efficiency of clinical operation and blood safety protection.

[0029] Furthermore, the RFID reader / writer module includes a dual-frequency card reader unit, a wristband scanning unit, and a blood bag scanning unit;

[0030] The wristband scanning unit is used to connect with the outer ring scanning signal, and the outer ring scanning ring corresponds to the low frequency or high frequency band.

[0031] The blood bag scanning unit is used to connect with the inner scanning ring signal, and the inner scanning ring corresponds to the ultra-high frequency band;

[0032] The dual-frequency card reader unit is used to synchronously drive the inner and outer scanning rings to work when the rotating shaft rotates to the verification position, so as to read the patient's identity information and blood bag information respectively; the two types of information are compared in real time and the comparison information is sent to the control module.

[0033] Beneficial effects: By adapting the inner ultra-high frequency and outer low / high frequency scanning rings to the dual-frequency card reading unit, the patient's wristband and blood bag tag information can be read synchronously. Real-time comparison ensures accurate matching of identity and blood bag, preventing transfusion errors caused by information confusion. The dual-unit synchronous drive design reduces step-by-step operations. Rotation triggers the completion of dual information verification. Process integration speeds up verification, achieving a dual improvement in safety control and operational efficiency.

[0034] Furthermore, the alarm module includes a light indicator unit and an audible indicator unit;

[0035] The indicator light unit provides visual guidance during verification; it flashes yellow when information is being verified; it remains solid green when information verification is successful; and it flashes red when information verification fails.

[0036] The sound indication unit is used to provide sound guidance during verification; to issue a buzzer alarm when information verification fails; and to issue prompt sounds during the operation process.

[0037] Beneficial effects: The three-color status of the lights provides intuitive feedback on the verification progress, which, together with the abnormal alarm and operation prompts from the sound unit, forms a dual visual and auditory guidance; it not only prevents the risk of misuse when information is mismatched by providing immediate alarms, but also guides standardized operation with process prompts, achieving synergistic optimization of safety warnings and efficiency improvement.

[0038] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0039] Figure 1 This is an isometric view of the blood transport box based on Internet of Things technology according to the present invention.

[0040] Figure 2 for Figure 1 Sectional view along the AA direction.

[0041] Figure 3 for Figure 2 Enlarged view of section B.

[0042] Figure 4 for Figure 2 Axonometric view of the interior of the sterile cabin.

[0043] Figure 5 for Figure 4 A cross-sectional view of the piston cylinder.

[0044] Figure 6 This is a structural block diagram of the blood transport box based on Internet of Things technology of the present invention.

[0045] The reference numerals in the accompanying drawings of the instruction manual include: 1. Box body; 2. Sterile chamber; 3. Scanning table; 4. Door; 5. Rotating shaft; 6. Brake disc; 7. Solenoid; 8. Brake pad; 9. Electromagnetic lock; 10. Cam; 11. Locking rod; 12. Tension spring; 13. Base; 14. Slider; 15. Gripper; 16. Sector gear; 17. Rack; 18. Gas spring; 19. Piston cylinder; 20. Piston plate; 21. Connecting rod. Detailed Implementation

[0046] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0047] The following detailed description illustrates the specific implementation method:

[0048] Example 1, as shown in the attached document Figures 1-4The image shows a blood transport box based on Internet of Things (IoT) technology, comprising a box body 1 and a lid. In some preferred embodiments, a combination lock can be added to the outside of the lid, allowing it to be opened only by medical personnel, further enhancing the security of the device. The box body 1 contains a sterile chamber 2 for holding blood bags. In some preferred embodiments, an ultraviolet lamp can be installed on the inner wall of the box body 1 to disinfect the sterile chamber 2 and maintain a sterile environment. A scanning table 3 is rotatably mounted on the top of the sterile chamber 2. A door 4 is hinged to the top of the sterile chamber 2, and a linkage unlocking mechanism for controlling the opening and closing of the door 4 is provided inside the sterile chamber 2. The scanning table 3 is equipped with an RFID reader / writer module for reading the blood bag tags inside the box. In the initial position, the blood bag tags and the RFID reader / writer module are misaligned. An indicator alarm module is also provided on the outer wall of the door 4. In this embodiment, the device is made of transparent material, and the transparent design facilitates medical personnel in verifying basic blood information.

[0049] It also includes a control module, which receives patient wristband information and blood bag tag information synchronously read by the RFID reader / writer module; compares the wristband information and blood bag tag information to generate a verification result instruction; then, based on the verification result instruction, sends a corresponding status prompt message to the indicator and alarm module, and performs matching verification of the verification result; when the verification result instruction matches, it sends an unlock instruction to the linkage unlocking mechanism; when the verification result instruction does not match, it sends an alarm instruction to the indicator and alarm module.

[0050] The scanning stage 3 is coaxially fixedly connected to the rotating shaft 5 (e.g. Figure 2 As shown, the rotating shaft 5 is equipped with a damping locking mechanism for locking the rotation of the rotating shaft 5; the scanning stage 3 is equipped with an inner scanning ring and an outer scanning ring, the inner scanning ring being used to read blood bag label information, and the outer scanning ring being used to read patient wristband information. In some preferred embodiments, a signal amplifier can also be added to the rotating shaft 5 to enable the inner scanning ring to quickly acquire blood bag label information.

[0051] The rotating shaft 5 has rotation angles for the initial position, verification position, and retrieval position. In this embodiment, the initial position, verification position, and retrieval position are set along the circumference of the rotating shaft 5. When the scanning table 3 rotates to the verification position, the RFID reading and writing module simultaneously reads the blood bag label information and wristband information. When the RFID scanning module has not completed the information verification, the damping locking mechanism restricts the rotating shaft 5 from rotating to the retrieval position. When the scanning table 3 rotates to the retrieval position, the linkage unlocking mechanism is driven to unlock.

[0052] Specifically, medical staff rotate the scanning table 3 to the verification position. At this time, the dual scanning rings are aligned with the blood bag label and the patient's wristband, respectively, triggering the RFID reading and writing module to read information synchronously. After the control module compares the information, if there is a mismatch, the rotating shaft 5 is locked by the damping locking mechanism and an alarm is triggered; if there is a match, the brake is released, allowing the scanning table 3 to continue rotating to the retrieval position, and the linkage unlocking mechanism is driven to open the hatch 4, releasing the blood bag through mechanical linkage.

[0053] The damping locking mechanism includes a brake disc 6 (such as a brake disc 6) that is fixedly attached to the rotating shaft 5. Figure 3 As shown), a solenoid 7 is fixedly connected to the top wall of the sterile chamber 2 by screws; in this embodiment, the solenoid 7 adopts an electromagnetic coil design with elastic function, the principle of which relies on the relative movement of the iron core and the coil. It is not described in detail in this embodiment, as long as it can meet the telescopic function; the solenoid 7 is electrically connected to the control module, and a brake pad 8 is fixedly connected to the bottom of the solenoid 7 by screws; when the verification result command does not match, the control module controls the solenoid 7 to drive the brake pad 8 to move, and the brake pad presses against the brake disc 6.

[0054] Specifically, when medical staff rotate the scanning table 3, the rotating shaft 5 drives the brake disc 6 to rotate synchronously. At this time, the solenoid 7 is not energized, and the brake pad 8 maintains a suitable distance from the brake disc 6. When the scanning table 3 rotates to the verification position, the RFID reading and writing module simultaneously reads the blood bag and wristband information and transmits it to the control module. If the information does not match, the control module immediately sends an energizing command to the solenoid 7. The solenoid 7 drives the brake pad 8 to further press the brake disc 6, forcibly locking the rotating shaft 5 through mechanical friction, preventing it from continuing to rotate to the retrieval position. If the information matches, the control module controls the solenoid 7 to be de-energized, and the brake pad 8 separates from the brake disc 6 under elastic action, releasing the mechanical lock. The scanning table 3 can then rotate to the retrieval position without resistance.

[0055] The linkage unlocking mechanism includes an electromagnetic lock 9 for controlling the opening and closing of the hatch 4 and an opening and closing mechanism. The electromagnetic lock 9 is electrically connected to the control module. The electromagnetic lock 9 is fixedly connected to the inner top wall of the sterile chamber 2 by screws. A torsion spring is sleeved on the hinge axis between the hatch 4 and the sterile chamber 2. A magnetic block is fixedly connected to the bottom of the hatch 4 away from the torsion spring by screws. The output end of the electromagnetic lock 9 is magnetically engaged with the magnetic block. When the verification result command matches, the control module is de-energized.

[0056] The opening and closing mechanism includes a cam 10 eccentrically fixed to the rotating shaft 5, a vertical rod fixedly connected to the top wall of the sterile chamber 2, and a locking rod 11 slidably engaged on the vertical rod; a locking plate is also fixedly connected to the bottom of the door 4 near the magnetic block, the locking rod 11 passes through the locking plate and slidably engages with the locking plate; the locking rod 11 contacts the cam 10, and a tension spring 12 is fixedly connected to the outer wall of the locking rod 11, with the end of the tension spring 12 away from the locking rod 11 fixedly connected to the vertical rod; when the scanning stage 3 rotates to the pick-up position, the rotating shaft 5 drives the cam 10 to rotate until the locking rod 11 disengages from the locking plate.

[0057] Specifically, when the scanning stage 3 rotates from the initial position to the verification position, the control module dynamically adjusts the braking state according to the verification result. If the information does not match, the damping locking mechanism presses the brake disc 6 with the brake pad 8 to lock the rotating shaft 5, the electromagnetic lock 9 maintains its attraction and the locking rod 11 remains in the latched state, and the hatch 4 is locked. If the information matches, the brake pad 8 releases the braking of the rotating shaft 5, allowing the scanning stage 3 to continue rotating to the pick-up position. At this time, the rotating shaft 5 drives the eccentric cam 10 to rotate synchronously. The cam 10 slides along the locking rod 11, and its far end gradually moves away from the locking rod 11. The tension spring 12 is stretched, the locking rod 11 gradually disengages from the locking plate, and the mechanical latch constraint is released.

[0058] Simultaneously, the control module disconnects the electromagnetic lock 9, the magnetic block disengages from the output of the electromagnetic lock 9, and the hatch 4 automatically flips open under the force of the torsion spring, achieving a coordinated action of mechanical pin unlocking and electromagnetic adsorption release. The entire process forms a closed loop through the mechanical linkage of the rotating shaft 5 and the electronic commands of the control module, ensuring that the hatch 4 is unlocked only when the information verification is passed and the door is rotated to the correct position. This strengthens security through multiple locking mechanisms and improves operational efficiency through the instantaneous response of mechanical and electronic mechanisms.

[0059] The specific implementation process is as follows:

[0060] In the initial state, the scanning table 3 is in its initial position, the blood bag label information slot and the RFID reader / writer module are misaligned, the brake pad 8 maintains a suitable distance from the brake disc 6 under the elastic action of the solenoid 7, the electromagnetic lock 9 is energized and attracts the magnetic block of the door 4, the locking rod 11 penetrates the locking plate under the preload of the tension spring 12, and the door 4 is closed under the dual locking of electromagnetic attraction and mechanical pin. When medical staff rotate the scanning table 3, the rotating shaft 5 drives the brake disc 6 to rotate synchronously. In some preferred embodiments, the brake pad 8 can maintain a certain contact force with the brake disc 6 to provide initial resistance and prevent misoperation.

[0061] When the scanning stage 3 rotates to the verification position, the inner and outer scanning rings are physically aligned with the blood bag label and the patient's wristband, respectively. The RFID reading and writing module triggers dual-frequency synchronous reading, and the control module compares the information in real time. If the information does not match, the control module drives the solenoid 7 to be energized, and the brake pad 8 presses against the brake disc 6 to form a mechanical lock. At the same time, the alarm module is activated to trigger the alarm. If the information matches, the solenoid 7 is de-energized, the brake pad 8 elastically resets and disengages from the brake disc 6, the damping lock is released, and the scanning stage 3 is allowed to continue rotating to the retrieval position.

[0062] During the rotation to the retrieval position, the rotating shaft 5 pushes the locking rod 11 along the vertical rod via the eccentric cam 10, and its distal end gradually moves away from the locking rod 11. The tension spring 12 stretches, and the locking rod 11 disengages from the locking plate, releasing the mechanical pin. At the same time, the control module disconnects the electromagnetic lock 9, the magnetic block disengages from the electromagnetic lock 9, and the door 4 automatically flips open under the force of the torsion spring. After blood collection is completed, the scanning table 3 rotates in the opposite direction to reset, the cam 10 and the sector gear 16 return to their original positions, the tension spring 12 pulls the locking rod 11 to re-lock the plate, the electromagnetic lock 9 re-energizes and attracts the magnetic block, and the gripper 15 and the gas spring 18 work together to reset and hold the new blood bag. The device returns to its initial locked state. Throughout the process, the linkage between mechanical actions and electronic control commands ensures coordinated control of information verification, mechanical unlocking, and safe release.

[0063] Example 2, in conjunction with Appendix Figure 4 As shown, unlike the above embodiment, the sterile chamber 2 is also equipped with a release mechanism for releasing blood bags. The release mechanism includes a base 13 bolted to the bottom wall of the sterile chamber 2, and sliders 14 symmetrically sliding on the outer wall of the base 13. Each slider 14 has a connecting rod 21 hinged to its outer wall, and a gripper 15 is hinged to the end of the connecting rod 21 away from the slider 14. The bottom end of the gripper 15 is hinged to the base 13. A sector gear 16 is also symmetrically fixed to the outer wall of the rotating shaft 5. Each sector gear 16 meshes with a rack 17, and the end of the rack 17 away from the sector gear 16 is screwed to the slider 14. When the scanning stage 3 rotates to the pick-up position, the rotating shaft 5 drives the sector gear 16 to rotate, and the sector gear 16 drives the sliders 14 to move away from each other through the rack 17.

[0064] The specific implementation process is as follows: In the initial state of the scanning stage 3, the gripper 15 of the release mechanism is in a closed clamping state on the base 13, the symmetrical slider 14 is close to the center of the base 13, the connecting rod 21 is in the pulled-down position, and the rack 17 does not undergo axial displacement. When the scanning stage 3 rotates from the verification position to the retrieval position, the rotating shaft 5 drives the sector gear 16 on the outer wall to rotate synchronously. The sector gear 16 drives the rack 17 to move in the horizontal direction through tooth surface meshing. The slider 14 connected to the rack 17 slides along the outer wall of the base 13 and moves away from each other.

[0065] During the movement of slider 14, the hinged connecting rod 21 pushes the gripper 15 to rotate outward around the bottom hinge point, and the gripper 15 gradually opens, realizing the release action of the blood bag. When the scanning stage 3 rotates to the retrieval position, the rack 17 drives slider 14 to move to the limit position, the gripper 15 fully opens, and the blood bag is released from the clamping state. After blood collection is completed, the scanning stage 3 rotates in the opposite direction to reset, the sector gear 16 rotates in the opposite direction with the rotating shaft 5, and the rack 17 drives slider 14 to move closer to each other under the meshing action. The connecting rod 21 pulls the gripper 15 to rotate inward and close, restoring the clamping and fixing of the blood bag. The whole process converts the rotational motion of the scanning stage 3 into the opening and closing action of the gripper 15 through the mechanical linkage of the rotating shaft 5, realizing the automated control of blood bag release and clamping.

[0066] Example 3, in conjunction with Appendix Figure 5 As shown, the difference from the above embodiment is that a gas spring 18 is also embedded in the base 13, and a piston cylinder 19 is fixedly connected to the bottom wall of the sterile chamber 2 with screws; a piston plate 20 is slidably fitted inside the piston cylinder 19, and the piston plate 20 is fixedly bonded to the rack 17; a transmission pipe is connected to the side of the piston cylinder 19 away from the rack 17, and the end of the transmission pipe away from the piston cylinder 19 is connected to the gas spring 18.

[0067] The specific implementation process is as follows: In the initial state, the gas spring 18 is in a compressed and stored state, the piston plate 20 is located at the end of the piston cylinder 19 near the rack 17, and the transmission tube maintains constant pressure. When the scanning stage 3 rotates to the pick-up position, the rotating shaft 5 drives the sector gear 16 to rotate synchronously, the meshing rack 17 moves in the horizontal direction, and the piston plate 20 fixed at the end of the rack 17 slides with the rack 17 in the piston cylinder 19, compressing the gas in the piston cylinder 19. The compressed gas is transported to the gas spring 18 through the transmission tube, pushing the output end of the gas spring 18 to extend outward. At the same time, the rack 17 drives the slider 14 to slide away along the outer wall of the base 13, and pushes the gripper 15 to rotate and open around the bottom hinge point through the connecting rod 21.

[0068] The extension of the gas spring 18 and the opening of the gripper 15 are synchronized. The gripper 15 releases its grip on the blood bag, and the gas spring 18 pushes the blood bag upward from the bottom with a flexible thrust. After the blood bag is removed, the scanning stage 3 rotates in the reverse direction to reset, the sector gear 16 drives the rack 17 to move back, and the piston plate 20 slides in the reverse direction in the piston cylinder 19 to create negative pressure. The gas in the gas spring 18 is drawn back to the piston cylinder 19 through the transmission tube, and the piston rod of the gas spring 18 retracts under its own elastic force. At the same time, the slider 14 drives the gripper 15 to close and reset, completing the coordinated reset of pneumatic and mechanical functions. Throughout the process, the mechanical movement of the rack 17 drives the gripper 15 to unlock mechanically and releases it through the pneumatic link of the gas spring 18, allowing the blood bag to be smoothly exposed.

[0069] Example 4, in conjunction with Appendix Figure 6As shown, the difference from the above embodiment is that the RFID read / write module includes a dual-frequency card reader unit, a wristband scanning unit, and a blood bag scanning unit; the indicator alarm module includes a light indicator unit and a sound indicator unit. The functions of each unit are as follows:

[0070] The wristband scanning unit is used to connect with the outer scanning ring signal, which corresponds to the low-frequency or high-frequency band. Specifically, the outer scanning ring supports adaptive switching between low-frequency (LF, 125kHz) and high-frequency (HF, 13.56MHz) dual-band; the recognition distance is 0-5cm (the wristband needs to be close to the scanning ring), the response time is ≤300ms, and it supports simultaneous reading of core information such as patient ID, name, blood type, or department stored in the wristband.

[0071] The blood bag scanning unit is used to connect with the inner scanning ring signal, which corresponds to the ultra-high frequency band. For example, the inner scanning ring uses ultra-high frequency (UHF, 860-960MHz) to meet the common identification requirements of blood bag labels. The identification distance is 5-15cm, the response time is ≤200ms, and it supports reading information such as the blood bag unique code, blood type, blood collection date, expiration date, or storage conditions (data capacity ≤2048 bytes).

[0072] The dual-frequency card reader unit is used to synchronously drive the inner and outer scanning rings when the rotating axis 5 rotates to the verification position, respectively reading patient identity information and blood bag information. It performs real-time comparison of the two types of information and sends the comparison information to the control module. Specifically, the dual-frequency card reader unit supports synchronous triggering of reading by the inner scanning ring (UHF) and the outer scanning ring (LF / HF), with a trigger delay ≤50ms, ensuring that the patient wristband and blood bag information are read simultaneously. It has a built-in 32-bit MCU processing unit, with a comparison logic response time ≤100ms (comparison dimensions include blood type matching, the binding relationship between patient ID and blood bag preparation record, and blood bag expiration date). Sensitive information read (such as patient ID and blood bag unique code) is transmitted using the AES-128 encryption algorithm to prevent data leakage.

[0073] The light indicator unit is used to provide display guidance during verification; when information is being verified, it flashes yellow; when the information verification is successful, it displays solid green; when the information verification fails, it flashes red. Specifically, the status parameters of the light indicator unit are set as follows: verification in progress (yellow) uses a 580nm wavelength LED with a flashing frequency of 1Hz (on for 0.5s / off for 0.5s); successful matching (green) uses a 525nm wavelength LED in solid mode; and failed matching (red) uses a 620nm wavelength LED with a flashing frequency of 2Hz (on for 0.25s / off for 0.25s).

[0074] The sound indication unit provides audible guidance during verification; issues a buzzer alarm when information verification fails; and provides prompts during the operation process. Specifically, the prompt tone (operation guidance) of the sound indication unit is set to a 500Hz single-frequency buzzer tone, lasting 200ms, with a volume of 60-70dB. Triggering scenarios include the scanning station 3 rotating to the verification position or information reading being completed. The alarm tone (verification failure) uses a 1kHz high-frequency buzzer tone, intermittent, lasting 3 seconds, with a volume ≥70dB, accompanied by flashing red lights to ensure rapid alerts in emergency situations.

[0075] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the scope of protection of this invention.

Claims

1. A blood transport box based on Internet of Things (IoT) technology, comprising a box body (1) and a box lid, characterized in that, The box body (1) is equipped with a sterile chamber (2) for holding blood bags. A scanning table (3) is rotatably connected to the top of the sterile chamber (2). A door (4) is hinged to the top of the sterile chamber (2). A linkage unlocking mechanism for controlling the opening and closing of the door (4) is provided inside the sterile chamber (2). An RFID reading and writing module for reading the blood bag label inside the box is provided on the scanning table (3). When the scanning table (3) is in the initial position, the blood bag label and the RFID reading and writing module are misaligned. An indicator alarm module is also provided on the outer wall of the door (4). It also includes a control module, which receives patient wristband information and blood bag label information synchronously read by the RFID reader / writer module; compares the wristband information and blood bag label information; and generates verification result instructions. Based on the verification result command, the system sends a corresponding status prompt to the indicator and alarm module and performs matching verification on the verification result. When the verification result command matches, the system sends an unlock command to the linkage unlocking mechanism. When the verification result command does not match, the system sends an alarm command to the indicator and alarm module.

2. The blood transport box based on Internet of Things technology according to claim 1, characterized in that, The scanning stage (3) is coaxially fixedly connected to a rotating shaft (5), and the rotating shaft (5) is provided with a damping locking mechanism for locking the rotation of the rotating shaft (5); the scanning stage (3) is provided with an inner scanning ring and an outer scanning ring, the inner scanning ring is used to read blood bag label information, and the outer scanning ring is used to read patient wristband information.

3. The blood transport box based on Internet of Things technology according to claim 2, characterized in that, The rotating shaft (5) has rotation angles for the initial position, verification position and retrieval position; when the scanning table (3) rotates to the verification position, the RFID reading and writing module reads the blood bag label information and wristband information simultaneously; when the RFID scanning module has not completed the information verification, the damping locking mechanism restricts the rotating shaft (5) from rotating to the retrieval position; when the scanning table (3) rotates to the retrieval position, the linkage unlocking mechanism is driven to unlock.

4. The blood transport box based on Internet of Things technology according to claim 3, characterized in that, The damping locking mechanism includes a brake disc (6) fixedly connected to the rotating shaft (5), and a solenoid (7) fixedly connected to the top wall of the sterile chamber (2); the solenoid (7) is electrically connected to the control module, and a brake pad (8) is fixedly connected to the bottom of the solenoid (7); when the verification result command does not match, the control module controls the solenoid (7) to drive the brake pad (8) to move, and the brake pad (8) presses against the brake disc (6).

5. The blood transport box based on Internet of Things technology according to claim 4, characterized in that, The linkage unlocking mechanism includes an electromagnetic lock (9) for controlling the opening and closing of the hatch (4) and an opening and closing mechanism. The electromagnetic lock (9) is electrically connected to the control module. The electromagnetic lock (9) is fixedly connected to the top wall inside the sterile chamber (2). A torsion spring is sleeved on the hinge shaft between the hatch (4) and the sterile chamber (2). A magnetic block is fixedly connected to the bottom of the hatch (4) on the side away from the torsion spring. The output end of the electromagnetic lock (9) is magnetically engaged with the magnetic block. When the verification result command matches, the control module is de-energized.

6. The blood transport box based on Internet of Things technology according to claim 5, characterized in that, The opening and closing mechanism includes a cam (10) eccentrically fixed to the rotating shaft (5), a vertical rod fixedly connected to the top wall of the sterile chamber (2), and a locking rod (11) slidingly engaged on the vertical rod; a locking plate is also fixedly connected to the bottom of the door (4) near the magnetic block, and the locking rod (11) passes through the locking plate and slides with the locking plate; the locking rod (11) contacts the cam (10), and a tension spring (12) is fixedly connected to the outer wall of the locking rod (11), and the end of the tension spring (12) away from the locking rod (11) is fixedly connected to the vertical rod; when the scanning table (3) rotates to the pick-up position, the rotating shaft (5) drives the cam (10) to rotate to the side where the locking rod (11) is disengaged from the locking plate.

7. The blood transport box based on Internet of Things technology according to claim 6, characterized in that, The sterile chamber (2) is also equipped with a release mechanism for releasing blood bags. The release mechanism includes a base (13) fixedly connected to the bottom wall of the sterile chamber (2). A slider (14) is symmetrically slidably fitted on the outer wall of the base (13). A connecting rod (21) is hinged to the outer wall of the slider (14). A gripper (15) is hinged to the end of the connecting rod (21) away from the slider (14). The bottom end of the gripper (15) is hinged to the base (13). A sector gear (16) is symmetrically fixedly connected to the outer wall of the rotating shaft (5). A rack (17) meshes with the sector gear (16). The end of the rack (17) away from the sector gear (16) is fixedly connected to the slider (14). When the scanning stage (3) rotates to the pick-up position, the rotating shaft (5) drives the sector gear (16) to rotate. The sector gear (16) drives the slider (14) to move away from each other through the rack (17).

8. The blood transport box based on Internet of Things technology according to claim 7, characterized in that, A gas spring (18) is also provided on the base (13), and a piston cylinder (19) is fixedly connected to the bottom wall of the sterile chamber (2); a piston plate (20) is slidably fitted inside the piston cylinder (19), and the piston plate (20) is fixedly connected to the rack (17); a transmission pipe is connected to the side of the piston cylinder (19) away from the rack (17), and the end of the transmission pipe away from the piston cylinder (19) is connected to the gas spring (18).

9. The blood transport box based on Internet of Things technology according to claim 8, characterized in that, The RFID reader / writer module includes a dual-frequency card reader unit, a wristband scanning unit, and a blood bag scanning unit; The wristband scanning unit is used to connect with the outer scanning ring signal, and the outer scanning ring corresponds to the low frequency or high frequency band. The blood bag scanning unit is used to connect with the inner scanning ring signal, and the inner scanning ring corresponds to the ultra-high frequency band; The dual-frequency card reader unit is used to synchronously drive the inner and outer scanning rings to work when the rotating shaft (5) rotates to the verification position, and to read the patient's identity information and blood bag information respectively; to compare the two types of information in real time and send the comparison information to the control module.

10. The blood transport box based on Internet of Things technology according to claim 9, characterized in that, The indicator alarm module includes a light indicator unit and a sound indicator unit; The indicator light unit provides visual guidance during verification; it flashes yellow when information is being verified; it remains solid green when information verification is successful; and it flashes red when information verification fails. The sound indication unit is used to provide sound guidance during verification; to issue a buzzer alarm when information verification fails; and to issue prompt sounds during the operation process.

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