Simple analgesic pump injection auxiliary device

Abstract

This invention aims to provide a simple auxiliary device for analgesic pump infusion, which can solve the problem of analgesic pump infusion interruption during sudden power outages. The invention includes a main housing, an infusion drive module disposed within the main housing, and a spring-driven module that drives the infusion drive module. The infusion drive module is connected to an external infusion device via an infusion tube. An infusion control module is disposed within the main housing and is electrically connected to the infusion drive module. In the event of a power outage, the spring-driven module drives the infusion drive module to push the medication. This invention applies to the technical field of infusion auxiliary devices.

Description

Technical Field

[0001] This invention relates to the technical field of drug injection auxiliary devices, and in particular to a simple auxiliary device for analgesic pump drug injection. Background Technology

[0002] With the increasing number of surgical procedures year by year, the number of patients using postoperative analgesia pumps has risen sharply. The configuration of analgesia pumps has become an important daily task for nursing staff, and the configuration efficiency directly affects the quality of clinical nursing, the patient's recovery experience, and the hospital's compliance with accreditation standards.

[0003] Currently, the preparation of analgesic pump medications in clinical practice is still mainly done manually. Nursing staff need to manually inject the analgesic drugs into the pump cartridge according to the doctor's orders. This preparation method has several unresolved problems: First, it is inefficient. Nursing staff need to prepare dozens or even hundreds of analgesic pumps every day. Manual injection is time-consuming and laborious, especially during peak periods of postoperative patient influx. The speed of manual preparation cannot meet the needs of rapid nursing care, resulting in delayed postoperative analgesia for some patients and affecting the analgesic effect. Second, it lacks precision. The accuracy of manual injection dosage is easily affected by factors such as the nurse's skill level, fatigue level, and concentration level, posing a risk of dosage deviation. This may affect the analgesic effect or even cause medication safety hazards, failing to meet the nursing quality requirements of tertiary hospitals. Third, it is labor-intensive. Long-term manual injection operation can easily lead to hand fatigue and strain for nursing staff, further reducing preparation efficiency and precision.

[0004] With the widespread application of intelligent technology in clinical nursing, some electronic drug delivery devices have begun to gradually replace manual operation, improving drug delivery efficiency to some extent. However, existing electronic drug delivery devices still have significant technical shortcomings and are difficult to adapt to actual clinical needs: First, they rely excessively on power supply. In the event of a sudden power outage, the device cannot operate normally, leading to the interruption of the analgesia pump's operation and failing to guarantee the continuity of postoperative analgesia care for patients. This problem is particularly prominent in primary hospitals with unstable power supply. Second, they are complex in structure and cumbersome in operation. Most electronic drug delivery devices require professional training to operate proficiently, making it difficult for nursing staff to quickly adapt to the needs of efficient clinical nursing. Third, they lack emergency support mechanisms. Once electronic components malfunction, it is impossible to quickly switch to backup mode, further affecting the progress of nursing work. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to overcome the shortcomings of the prior art and provide a simple auxiliary device for analgesic pump infusion, which can solve the problem of analgesic pump infusion interruption during sudden power outages.

[0006] The technical solution adopted in this invention is as follows: This invention includes a main housing, a drug injection drive module disposed within the main housing, and a spring-driven module that is in transmission cooperation with the drug injection drive module. The drug injection drive module is connected to an external infusion device through an infusion tube. A drug injection control module is disposed within the main housing, and the drug injection control module is electrically connected to the drug injection drive module. The spring-driven module drives the drug injection drive module to push the drug liquid in the power-off state.

[0007] Furthermore, the main housing includes an upper housing and a lower housing hinged to the upper housing, and the drug injection control module is fixedly connected to the upper housing; the lower housing is provided with a mounting base, one side of the mounting base is limited to the drug injection drive module through a mounting lock cover, and the other side of the mounting base is pivotally connected to the spring drive module; the outer side wall of the upper housing is provided with at least one locking buckle, and the outer side wall of the lower housing is provided with a locking block that is snapped into the locking buckle, and the locking buckle and the locking block correspond one-to-one.

[0008] Furthermore, the upper housing is provided with at least two clips, each of which corresponds to one of the infusion tubes.

[0009] Furthermore, the drug injection drive module includes a transmission box disposed on the mounting base, a drug injection drive device fixedly connected to the lower side of the transmission box, and a drug pushing wheel assembly that is driven and engaged with the movable end of the drug injection drive device; the transmission box is pivotally connected to a drive wheel, and the inner side of the drive wheel is driven and engaged with the drug pushing wheel assembly; the side wall of the transmission box is formed with a slot, and the outer side wall of the drive wheel is driven and engaged with the spring drive module through the slot; a liquid pushing tube connected to the infusion tube is disposed on the upper side of the transmission box, and the drug pushing wheel assembly squeezes the liquid pushing tube to push out the liquid.

[0010] Furthermore, the pusher wheel assembly includes a rotating seat, planetary gears pivotally connected to the lower end of the rotating seat, a positioning block guidely connected to the upper end of the rotating seat, and at least two pusher wheels pivotally connected to the positioning block; the inner side of the planetary gears is in drive engagement with the movable end of the injection drive device, and the outer side of the planetary gears is in drive engagement with the inner side of the drive wheel.

[0011] Furthermore, the spring drive module includes a pusher piece pivotally connected to the mounting base, a spring coil fixedly connected to the lower side of the pusher piece, and a pin pivotally connected to the upper housing. The pusher piece is provided with drive teeth, which mesh with the end of the pin. The pusher piece is driven by the injection drive device through transmission teeth, which are pivotally connected to the mounting base.

[0012] Furthermore, the upper housing is provided with an opening, and a limit block is provided on the outer side wall of the upper housing;

[0013] The pin includes a knob rod, a transmission rod, and a push gear. The push gear is fixedly connected to one end of the transmission rod, and one end of the transmission rod is pivotally connected to the upper housing. A guide block is provided at the end of the transmission rod near the push gear. One end of the knob rod passes through the opening and is guided and connected to the guide block. A handle is provided at the other end of the knob rod. The push gear meshes with the drive gear. The knob rod is provided with a protrusion that engages with the limiting block.

[0014] Furthermore, the drug injection control module includes a main control board disposed on the main housing, and a power supply module, an information acquisition module, an information conversion and storage module, and a drug injection drive module integrated on the main control board. The information acquisition module is electrically connected to the information conversion module, and the drug injection drive module is electrically connected to the drug injection drive module. The power supply module provides working power to each power-consuming module.

[0015] Furthermore, the information acquisition module includes:

[0016] The display unit is used to present the current operating mode in real time.

[0017] A voice recognition unit is used to recognize drug dosage or pump speed commands and transmit the parameters to the information conversion and storage module.

[0018] The camera unit is used to identify dosage information in medical orders or drug dosage labels and transmit the parameters to the information conversion and storage module.

[0019] Furthermore, the information conversion and storage module includes:

[0020] The drug parameter unit is used to record the injection gradient of the drug dosage;

[0021] The injection pump speed parameter unit is used to store the rotational speed of the injection drive device;

[0022] The drug injection cache unit is used to store the parameter information collected by the information acquisition module;

[0023] The conversion output unit is used to convert parameter information into instructions and transmit them back to the main control board.

[0024] The beneficial effects of this invention are:

[0025] (1) This invention provides a spring-driven module that works in conjunction with the drug delivery drive module. Under normal power supply conditions, the drug delivery drive module is controlled by the drug delivery control module to perform electronic automatic drug delivery. When a sudden power outage causes the electronic system to malfunction, the spring-driven module, as an independent mechanical power source, can directly drive the drug delivery drive module, which is in a stopped state, to continue pushing the drug solution. Through this dual guarantee mechanism of "electronic automatic + mechanical emergency", the technical problem of the interruption of operation of existing electronic drug delivery devices due to reliance on electricity during power outages is effectively solved, ensuring the continuity of postoperative analgesia pump configuration and drug delivery.

[0026] (2) At the same time, through the camera unit and voice recognition unit in the information acquisition module, the drug administration parameters can be quickly and accurately acquired and set, reducing manual intervention and input errors, thereby improving configuration efficiency while ensuring dosage accuracy, effectively reducing the workload of nursing staff, reducing drug safety risks, and meeting the high requirements of postoperative analgesia rate in tertiary hospitals.

[0027] (3) The device has a simple overall structure and moderate size, making it easy to store and move in clinical settings. The main shell adopts a snap-fit ​​design, which can be quickly adapted to different specifications of analgesic drug infusion devices, making it highly versatile. At the same time, the main shell is made of medical-grade material, which is waterproof, stain-proof, and easy to disinfect, making it suitable for clinical nursing disinfection scenarios. The display unit adopts a backlight design, which is suitable for different lighting environments. The spring-driven module is easy to operate, and after being tightened, it can meet the needs of a single injection, providing good emergency effects and effectively ensuring the continuity of postoperative analgesia care. Attached Figure Description

[0028] Figure 1 This is a first-view schematic diagram of the structure of the auxiliary device of the present invention;

[0029] Figure 2 This is a second perspective view of the structural schematic diagram of the auxiliary device of the present invention;

[0030] Figure 3 This is a schematic diagram of the auxiliary device of the present invention in its open state;

[0031] Figure 4 This is a schematic diagram of the main housing of the auxiliary device of the present invention in the open state;

[0032] Figure 5 This is an exploded view of the drug injection drive module of the auxiliary device of the present invention;

[0033] Figure 6 This is a schematic diagram of the structure of the spring-driven module of the auxiliary device of the present invention;

[0034] Figure 7 This is a schematic diagram of the structure of the auxiliary device of the present invention, showing the engagement between the pin and the upper housing;

[0035] Figure 8 yes Figure 7 A magnified view of part A in the middle.

[0036] In the picture:

[0037] 1. Main housing; 11. Upper housing; 12. Lower housing; 13. Mounting base; 14. Mounting lock cover; 15. Locking buckle; 16. Locking block; 17. Clamp; 18. Opening; 19. Limiting block;

[0038] 2. Injection drive module; 21. Transmission box; 22. Injection drive device; 23. Pushing wheel assembly; 231. Rotary seat; 232. Planetary gear; 233. Positioning block; 234. Pushing wheel; 24. Transmission wheel; 25. Groove; 26. Liquid pushing tube;

[0039] 3. Spring-driven module; 31. Push claw; 32. Spring coil; 33. Pin; 331. Knob lever; 332. Transmission rod; 333. Push gear; 334. Guide block; 335. Grip; 336. Protrusion; 34. Drive gear; 35. Transmission gear;

[0040] 4. Drug injection control module;

[0041] 5. Infusion tubing. Detailed Implementation

[0042] like Figures 1-2 As shown, in this embodiment, the present invention includes a main housing 1, a drug injection drive module 2 disposed within the main housing 1, and a spring-driven module 3 that is in transmission cooperation with the drug injection drive module 2. The drug injection drive module 2 is connected to an external infusion device through an infusion tube 5. A drug injection control module 4 is disposed within the main housing 1, and the drug injection control module 4 is electrically connected to the drug injection drive module 2. The spring-driven module 3 drives the drug injection drive module 2 to push the drug liquid in the power-off state.

[0043] Specifically, adopting a dual drug delivery mode of "electronic automatic + mechanical emergency", after connecting to an external infusion device, medical staff can control the speed and dosage of the drug delivery drive module 2 by manually setting or voice setting the dosage. In the event of a power outage or electronic component failure, the drug delivery drive module 2, which is in a stopped state, can be driven by the clockwork drive module through the knob pin 33 to continue delivering the drug to the patient. This achieves dual protection of electronic automatic drug delivery and clockwork mechanical manual drug delivery, solving the technical problem of analgesia pump configuration interruption in the event of a sudden power outage or electronic component failure, and filling the gap in emergency drug delivery of existing clinical drug delivery auxiliary devices.

[0044] Among them, the spring drive module 3 is made of high-strength elastic material, which has long-lasting elasticity and can be repeatedly tightened. It also adopts a replaceable design, which can be easily replaced when the spring elasticity decreases in the later stage, thus extending the service life of the device.

[0045] The drug injection drive module 2 is electrically connected to the drug injection control module. The drug injection drive device 22 can be a high-precision micro stepper motor or servo motor. The drug delivery dosage accuracy error is ≤ ±0.1ml. It can accurately control the drug pumping dosage and adapt to the analgesic dosage needs of different postoperative patients. It can be precisely adjusted from 1ml to 10ml. The infusion tube 5 is made of medical-grade silicone material, which is non-toxic, non-irritating, and corrosion-resistant.

[0046] like Figures 3-4 As shown, in this embodiment, the main housing 1 includes an upper housing 11 and a lower housing 12 hinged to the upper housing 11. The drug injection control module 4 is fixedly connected to the upper housing 11. The lower housing 12 is provided with a mounting base 13. One side of the mounting base 13 is limited to the drug injection drive module 2 through a mounting lock cover 14, and the other side of the mounting base 13 is pivotally connected to the spring drive module 3. The outer side wall of the upper housing 11 is provided with at least one locking buckle 15, and the outer side wall of the lower housing 12 is provided with a locking block 16 that is snapped into the locking buckle 15. The locking buckle 15 and the locking block 16 correspond one-to-one.

[0047] Specifically, the upper housing 11 is provided with a lower pressing block, which is pivotally connected to the push claw 321 and the transmission gear 35 to press the push claw 321 and the transmission gear 35 so that they remain stable when rotating.

[0048] When the upper housing 11 and the lower housing 12 are closed, the locking buckle 15 and the locking block 16 engage to lock the main housing 1, which facilitates the maintenance and cleaning of the device. When it is necessary to inspect the internal components, the upper housing 11 can be easily unlocked and opened. This split design makes the assembly, inspection and replacement of the internal structure more convenient.

[0049] In this embodiment, the upper housing 11 is provided with at least two clips 17, and the clips 17 correspond one-to-one with the infusion tubes 5.

[0050] Specifically, after the infusion tube 5 is connected to the external infusion device, a portion of its tube section can be clamped in the clip 17, which serves to fix and organize the pipeline, preventing the infusion tube 5 from affecting the accuracy of drug administration or causing inconvenience due to pulling or tangling during operation.

[0051] like Figure 5As shown, in this embodiment, the drug injection drive module 2 includes a transmission box 21 disposed on the mounting base 13, a drug injection drive device 22 fixedly connected to the lower side of the transmission box 21, and a drug pushing wheel assembly 23 that is driven and cooperates with the movable end of the drug injection drive device 22; the transmission box 21 is pivotally connected to a transmission wheel 24, and the inner side of the transmission wheel 24 is driven and cooperates with the drug pushing wheel assembly 23; the side wall of the transmission box 21 is formed with a slot 25, and the outer side wall of the transmission wheel 24 is driven and cooperates with the spring drive module 3 through the slot 25; the upper side of the transmission box 21 is provided with a push tube 26 connected to the infusion tube 5, and the drug pushing wheel assembly 23 squeezes the push tube 26 to push out the drug liquid.

[0052] Specifically, the drug injection drive device 22 is preferably a high-precision micro stepper motor or servo motor with an accuracy error of ≤ ±0.1ml.

[0053] When the power is on, the drug injection drive device 22 drives the drug pushing wheel assembly 23 to rotate. The drug pushing wheel assembly 23 continuously squeezes the liquid pushing tube 26, thereby accurately and uniformly pushing the liquid from the infusion tube 5 to the external analgesia pump box. At this time, the pin 33 of the spring drive module 3 is locked and fixed to the upper housing 11, and the pusher pawl 31 locks and fixes the transmission gear 35. Thus, the transmission wheel 24 that meshes with the transmission gear 35 is in a relatively fixed state.

[0054] When the power is off, the operator pulls the pin 33 of the spring drive module 3 out a certain distance to unlock it. The knob pin 33 is turned to wind the spring coil 32. After the spring coil 32 is tightened, the pin 33 is pulled out a certain distance to disengage the pin 33 from the guide block 334. The pusher pawl 31 rotates in the opposite direction under the drive of the spring coil 32. The pusher pawl 31 drives the transmission gear 35, which in turn drives the transmission wheel 24 to rotate and drive the entire medicine pushing wheel assembly 23, thus realizing the liquid medicine pushing in mechanical mode.

[0055] In this embodiment, the pusher wheel assembly 23 includes a rotating seat 231, a planetary gear 232 pivotally connected to the lower end of the rotating seat 231, a positioning block 233 guidely connected to the upper end of the rotating seat 231, and at least two pusher wheels 234 pivotally connected to the positioning block 233; the inner side of the planetary gear 232 is in transmission engagement with the movable end of the drug injection drive device 22, and the outer side of the planetary gear 232 is in transmission engagement with the inner side of the transmission wheel 24.

[0056] Specifically, when the planetary gear 232 is driven, it drives the rotating seat 231, the positioning block 233 and the pusher 234 on it to revolve around the center. At the same time, the pusher 234 can rotate on its own axis. Multiple pushers 234 sequentially squeeze the pusher tube 26 during the revolution, forming a continuous and stable peristaltic pumping effect, which can protect the pusher tube 26 and ensure the stability of the drug injection flow rate.

[0057] like Figures 6-8 As shown, in this embodiment, the spring drive module 3 includes a pusher 31 pivotally connected to the mounting base 13, a spring coil 32 fixedly connected to the lower side of the pusher 31, and a pin 33 pivotally connected to the upper housing 11. The pusher 31 is provided with a drive tooth 34, which meshes with the end of the pin 33. The pusher 31 is driven by the injection drive device 22 through a transmission tooth 35, which is pivotally connected to the mounting base 13.

[0058] Among them, the pusher pawl 31 is a ratchet pawl structure. Multiple pushers are hinged to the outer side of the pusher pawl 31. Each pusher pawl floats and engages with the outer wall of the spring pusher pawl 31 to push the transmission wheel 24 in one direction. When winding, there is no meshing transmission between it and the transmission teeth 35.

[0059] The pusher 31 is driven by the injection drive device 22 through the transmission gear 35. The transmission gear 35 is pivotally connected to the mounting base 13. The spring ring 32 is made of high-strength elastic metal.

[0060] When mechanical mode needs to be activated, the pin 33 is operated to drive the gear 333 to mesh with the drive gear 34, and the manual part can be rotated to wind the spring coil 32 to store energy.

[0061] After being released, the spring coil 32 releases its elastic potential energy, which pushes the pusher 31 to swing. The pusher 31 transmits power to the injection drive module 2 through the meshing of the drive tooth 34 and the transmission tooth 35, driving it to complete the injection action.

[0062] In this embodiment, the upper housing 11 is provided with an opening 18, and the outer side wall of the upper housing 11 is provided with a limiting block 19;

[0063] The pin 33 includes a knob rod 331, a transmission rod 332, and a push gear 333. The push gear 333 is fixedly connected to one end of the transmission rod 332. One end of the transmission rod 332 is pivotally connected to the upper housing 11. A guide block 334 is provided at one end of the transmission rod 332 near the push gear 333. One end of the knob rod 331 passes through the opening 18 and is guided and connected to the guide block 334. A handle 335 is provided at the other end of the knob rod 331. The push gear 333 meshes with the drive gear 34. The knob rod 331 is provided with a protrusion 336 that engages with the limiting block 19.

[0064] Specifically, a limiting block is provided on the outer side wall of the upper housing 11. The limiting block is used to cooperate with the protrusion 336. When the protrusion 336 of the knob rod 331 is engaged with the limiting block of the upper housing 11, the knob rod 331 is in a locked state and cannot be rotated. The knob rod 331 locks the position of the transmission rod 332 through the guide block 334, thereby realizing the locking and positioning of the push gear 333. The push gear 333 meshes with the push claw 31, making the push claw 31 unable to rotate.

[0065] When the knob lever 331 is pulled out a certain distance so that the protrusion 336 is disengaged from the limit block, the knob lever 331 and the guide block 334 remain connected. At this time, rotating the knob lever 331 can drive the drive gear 333 to rotate synchronously through the transmission rod 332, so as to tighten the spring coil 32 and store energy.

[0066] After the mainspring coil 32 is locked and stored, the knob rod 331 is pulled out a certain distance, causing the end of the knob rod 331 to disengage from the guide block 334. The mainspring coil 32 releases its elastic potential energy, which drives the pusher pawl 31 to rotate. At this time, the meshing teeth drive the push gear 333 to rotate synchronously. At this time, the selection of the transmission rod 332 does not affect the knob rod 331, thus improving the safety of use.

[0067] In this embodiment, the drug injection control module 4 includes a main control board 41 disposed on the main housing 1, and a power supply module, an information acquisition module, an information conversion and storage module, and a drug injection drive module integrated on the main control board 41. The information acquisition module is electrically connected to the information conversion module, and the drug injection drive module is electrically connected to the drug injection drive module 2. The power supply module provides working power to each power-consuming module.

[0068] Specifically, the main control board 41 is equipped with two alarm lights, a camera button, a voice recognition button, a power switch manual setting button, a parameter setting button, an alarm mute button and a pipeline venting button, and a run and stop button;

[0069] The alarm lights are symmetrically arranged at the top of the control panel. They are round or square in appearance and are red (marked as electronic mode abnormality) and yellow (marked as mechanical mode abnormality), respectively. They are electrically connected to the main control board 41. When the device experiences abnormalities such as abnormal drug dosage, blockage of the infusion line, or insufficient power in the electronic mode, the corresponding alarm light will light up to promptly remind nursing staff to investigate and handle the situation, ensuring operational safety and drug delivery accuracy.

[0070] The camera button is integrated into the main control board 41. A circular button can be selected, and the surface can be printed with a camera logo. It features a single-button trigger design. Pressing it once activates the camera unit integrated inside the operation panel, allowing it to be pointed at drug dosage labels and medical orders for taking pictures. Pressing it again completes the picture recognition. The recognition unit automatically extracts the dosage information and transmits it synchronously to the control module to complete parameter presets, reduce manual input errors, improve operation convenience, and achieve a recognition accuracy rate of ≥98%. It is compatible with drug labels and medical orders of different specifications.

[0071] The voice recognition button is integrated on the main control board 41. It can be a rectangular or round button with a voice logo printed on the surface. When the long press triggers the mode, it can accurately recognize the setting instructions such as drug dosage and pump speed in the voice of the nurse, such as "dosage 5ml, speed 2ml / min". The voice recognition unit converts the voice instructions into electrical signals and transmits them to the main control board 41 to automatically complete the parameter configuration without manual input. This is especially suitable for nurses to operate when their hands are busy, further improving the configuration efficiency.

[0072] Power switch: controls the power supply of the entire control device. The button surface is marked with "switch". In electronic mode, the power must be turned on to operate. In mechanical mode, the power does not need to be turned on and can be operated directly by manually turning the knob. The operation is flexible.

[0073] Manual switching setting key: The key surface is marked with "Mode Switching". It can switch between electronic automatic mode and spring-driven mechanical manual mode with one key. When the power supply is normal, it switches to electronic automatic mode to realize automatic and accurate drug pumping. In case of sudden power failure or electronic component failure, it switches to mechanical manual mode, which drives the drug injection through the spring to ensure that the nursing work is not interrupted.

[0074] Parameter setting button: The button surface is marked with "Parameter Setting". When there is a deviation in camera recognition or voice recognition, or when it is necessary to manually adjust the parameters according to individual patient differences, the drug dosage, pump speed, etc. can be manually set through this button to adapt to the analgesia needs of different patients. The operation is convenient and accurate.

[0075] Alarm silence and pipeline venting button: The button surface is marked with "venting / silencing". Pressing and holding this button can perform two functions at the same time: first, stop the abnormal alarm sound, and second, start the drug delivery pipeline venting function to remove residual air in the drug delivery pipeline, so as to prevent air from entering the analgesia pump cartridge and affecting the drug delivery accuracy, and at the same time prevent air from entering the patient's body and causing safety hazards, thus ensuring medication safety.

[0076] Run and Stop Buttons: The buttons are marked with "Run / Stop" and independently control the start and emergency termination of the drug injection operation. In electronic mode, clicking the start button will automatically pump the drug according to preset parameters. In mechanical mode, after starting, the device will complete the drug pumping operation in conjunction with the spring drive. In case of emergency, clicking the stop button will immediately terminate the drug injection operation, which allows nursing staff to control the operation flexibly and improves the safety of operation.

[0077] The information acquisition module is electrically connected to the information conversion and storage module, and the drug injection drive module is electrically connected to the drug injection drive device 22 of the drug injection drive module 2. The power supply module provides operating power to each power-consuming module, and may include an external power supply interface and a built-in backup battery to ensure the stable operation of the electronic system under normal power supply and to maintain core functions during brief power outages.

[0078] The core control unit on the main control board 41 can be an STM32U073RCT6 as the main control chip. It typically includes a microprocessor, such as a single-chip microcomputer or PLC, a memory, such as ROM and RAM, and various drive circuits and interface circuits connected to the microprocessor. These are all technologies known to those skilled in the art, and their specific models and connection relationships will not be described in detail here.

[0079] In this embodiment, the information acquisition module includes:

[0080] The display unit is used to present the current operating mode in real time.

[0081] A voice recognition unit is used to recognize drug dosage or pump speed commands and transmit the parameters to the information conversion and storage module.

[0082] The camera unit is used to identify dosage information in medical orders or drug dosage labels and transmit the parameters to the information conversion and storage module.

[0083] Specifically, the display unit uses a backlit high-definition LCD screen located below the two alarm lights. It can clearly display parameters in a dimly lit clinical environment and present the current operating mode of the device in real time, including electronic automatic mode / mechanical manual mode, drug dosage, pump speed, remaining drug volume, running time, and other key information. This allows nursing staff to view and verify the information in real time and avoid operational errors. The display unit is embedded on the surface of the upper housing 11 and is used to present the current operating mode in real time, such as "electronic mode", "mechanical mode", preset drug dosage, pump speed, amount of drug pushed, and operating status.

[0084] The voice recognition unit can use the LD3320 chip to recognize voice commands received by the voice buttons and extract key parameters such as drug dosage and pump speed.

[0085] The camera unit is fixedly connected to the lower housing 12 and can be an OV7670 / OV7725 CMOS+AL422B FIFO. The camera unit includes a miniature camera integrated on the surface of the upper housing 11, which is used to capture and recognize the text and barcode information on the medical order or drug dosage label, automatically extract the dosage parameters and transmit them to the information conversion and storage module, which greatly reduces the errors that may be caused by manual input.

[0086] In this embodiment, the information conversion and storage module includes:

[0087] The drug parameter unit is used to record the injection gradient of the drug dosage;

[0088] The injection pump speed parameter unit is used to store the rotational speed of the injection drive device 22;

[0089] The drug injection cache unit is used to store the parameter information collected by the information acquisition module;

[0090] The conversion output unit is used to convert parameter information into instructions and transmit them back to the main control board 41.

[0091] Specifically, the drug parameter unit can use the AT24C256 chip, which is used to pre-store or record the recommended injection gradients of different analgesics;

[0092] The injection pump speed parameter unit stores the rotation speed correspondence of the injection drive device 22 under different tasks.

[0093] The drug injection buffer unit can use the FM25L16B chip to temporarily or permanently store parameter information collected by the information acquisition module.

[0094] The conversion output unit is responsible for converting the final parameter information into control commands, which are then transmitted back to the main control board 41. The main control board 41 drives the drug injection drive module to operate, thereby controlling the drug injection drive device 22 to run according to the set parameters. This modular design makes the parameter setting, storage, and retrieval process clear and convenient to operate.

[0095] Working principle of the invention:

[0096] In normal power supply electronic mode, nursing staff can quickly set drug administration parameters through the information acquisition module.

[0097] After the parameters are processed by the information conversion and storage module, they are sent to the main control board 41. The main control board 41 controls the drug injection drive module to drive the drug injection drive device 22 to work, which in turn drives the drug pushing wheel group 23 to squeeze the liquid pushing tube 26, thereby achieving precise and automatic drug injection.

[0098] When a power outage occurs, the electronic system stops working. The staff pulls the pin 33 of the spring drive module 3 out a certain distance to unlock it. The knob pin 33 is turned to wind the spring coil 32. After the spring coil 32 is tightened, the pin 33 is pulled out a certain distance to disengage the pin 33 from the guide block 334. The pusher pawl 31 rotates in the opposite direction under the drive of the spring coil 32. The pusher pawl 31 drives the transmission gear 35, which in turn drives the transmission wheel 24 to rotate and drive the entire drug delivery wheel assembly 23, realizing the delivery of the drug in mechanical mode. This completes the delivery of the remaining drug, thus ensuring the continuity of the drug delivery process and avoiding the interruption of analgesia for the patient due to a power outage.

[0099] Although the embodiments of the present invention are described with reference to actual solutions, they do not constitute a limitation on the meaning of the present invention. Modifications to the embodiments and combinations with other solutions based on this specification will be obvious to those skilled in the art.

Claims

1. A simple analgesic pump infusion auxiliary device, characterized in that: The device includes a main housing (1), a drug injection drive module (2) disposed within the main housing (1), and a spring-driven module (3) that is in transmission cooperation with the drug injection drive module (2). The drug injection drive module (2) is connected to an external infusion device through an infusion tube (5). A drug injection control module (4) is disposed within the main housing (1), and the drug injection control module (4) is electrically connected to the drug injection drive module (2). The spring-driven module (3) drives the drug injection drive module (2) to push the drug liquid when the power is off.

2. The simplified analgesic pump infusion auxiliary device according to claim 1, characterized in that: The main housing (1) includes an upper housing (11) and a lower housing (12) hinged to the upper housing (11). The injection control module (4) is fixedly connected to the upper housing (11). The lower housing (12) is provided with a mounting seat (13). One side of the mounting seat (13) is limited to the injection drive module (2) through a mounting lock cover (14). The other side of the mounting seat (13) is pivotally connected to the spring drive module (3). The outer side wall of the upper housing (11) is provided with at least one locking buckle (15). The outer side wall of the lower housing (12) is provided with a locking block (16) that is snapped into the locking buckle (15). The locking buckle (15) and the locking block (16) correspond one-to-one.

3. The simplified analgesic pump infusion auxiliary device according to claim 2, characterized in that: The upper housing (11) is provided with at least two clips (17), and the clips (17) correspond one-to-one with the infusion tube (5).

4. The simplified analgesic pump infusion auxiliary device according to claim 2, characterized in that: The drug injection drive module (2) includes a transmission box (21) disposed on the mounting base (13), a drug injection drive device (22) fixedly connected to the lower side of the transmission box (21), and a pusher wheel assembly (23) that is driven and cooperates with the movable end of the drug injection drive device (22); the transmission box (21) is pivotally connected to a transmission wheel (24), and the inner side of the transmission wheel (24) is driven and cooperates with the pusher wheel assembly (23); the side wall of the transmission box (21) is formed with a slot (25), and the outer side wall of the transmission wheel (24) is driven and cooperates with the spring drive module (3) through the slot (25); the upper side of the transmission box (21) is provided with a pusher tube (26) connected to the infusion tube (5), and the pusher wheel assembly (23) squeezes the pusher tube (26) to push out the drug liquid.

5. A simplified analgesic pump infusion auxiliary device according to claim 4, characterized in that: The pusher wheel assembly (23) includes a rotating seat (231), a planetary gear (232) pivotally connected to the lower end of the rotating seat (231), a positioning block (233) guidely connected to the upper end of the rotating seat (231), and at least two pusher wheels (234) pivotally connected to the positioning block (233); the inner side of the planetary gear (232) is in transmission engagement with the movable end of the drug injection drive device (22), and the outer side of the planetary gear (232) is in transmission engagement with the inner side of the drive wheel (24).

6. A simplified analgesic pump infusion auxiliary device according to claim 2, characterized in that: The spring drive module (3) includes a pusher (31) pivotally connected to the mounting base (13), a spring coil (32) fixedly connected to the lower side of the pusher (31), and a pin (33) pivotally connected to the upper housing (11). The pusher (31) is provided with a drive tooth (34), which meshes with the end of the pin (33). The pusher (31) is driven by a transmission tooth (35) to the drug injection drive device (22). The transmission tooth (35) is pivotally connected to the mounting base (13).

7. A simplified analgesic pump infusion auxiliary device according to claim 6, characterized in that: The upper housing (11) is provided with an opening (18), and the outer side wall of the upper housing (11) is provided with a limit block (19). The pin (33) includes a knob rod (331), a transmission rod (332), and a push gear (333). The push gear (333) is fixedly connected to one end of the transmission rod (332). One end of the transmission rod (332) is pivotally connected to the upper housing (11). A guide block (334) is provided at one end of the transmission rod (332) near the push gear (333). One end of the knob rod (331) passes through the opening (18) and is guided and connected to the guide block (334). A handle (335) is provided at the other end of the knob rod (331). The push gear (333) meshes with the drive gear (34). The knob rod (331) is provided with a protrusion (336) that engages with the limiting block (19).

8. The simplified analgesic pump infusion auxiliary device according to claim 1, characterized in that: The drug injection control module (4) includes a main control board disposed on the main housing (1), and a power supply module, an information acquisition module, an information conversion and storage module and a drug injection drive module integrated on the main control board. The information acquisition module is electrically connected to the information conversion module, and the drug injection drive module is electrically connected to the drug injection drive module (2). The power supply module provides working power to each power-consuming module.

9. A simplified analgesic pump infusion auxiliary device according to claim 8, characterized in that: The information acquisition module includes: The display unit is used to present the current operating mode in real time. A voice recognition unit is used to recognize drug dosage or pump speed commands and transmit the parameters to the information conversion and storage module. The camera unit is used to identify dosage information in medical orders or drug dosage labels and transmit the parameters to the information conversion and storage module.

10. A simplified analgesic pump infusion auxiliary device according to claim 8, characterized in that: The information conversion and storage module includes: The drug parameter unit is used to record the injection gradient of the drug dosage; The injection pump speed parameter unit is used to store the rotational speed of the injection drive device (22); The drug injection cache unit is used to store the parameter information collected by the information acquisition module; The conversion output unit is used to convert parameter information into instructions and transmit them back to the main control board.

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