An intelligent infusion device
Patent Information
- Application Number
- CN202521045577.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-26
- Publication Date
- 2026-09-29
- Estimated Expiration
- 2035-05-26
AI Technical Summary
现有的输液装置中虽然也有设置液位传感器和警报器的方案，但功能有限，缺少实时测速调速及输液压力监测等功能，难以满足临床需求
[0014]与现有技术相比，本实用新型的智能输液装置有益效果是，置药台为敞口式设计可以适应不同长度和大小的药瓶，有效节约了医护人员装配输液瓶的时间，设置液位传感器监测输液瓶内药液的液位变化，当液位降至预设值时，可通过自动换药模块进行稳定精准的自动换药，与传统手动换药方式相比，极大的减少了护士的操作步骤和工作量，提高了换药效率，降低了因手动操作可能带来的感染风险；在输液过程中，可以通过滴速传感器检测实时的输液滴速，并通过导管调速结构可及时调整输液速度，相比传统输液调速方式，导管调速结构的调速精度更高，能更好地满足不同患者的输液需求，保障输液安全；同时，液位传感器、滴速传感器和压力传感器可同时对换药时的输液状况进行监测，起到了多重保险的作用，可以更好的保障患者的输液安全。
Smart Images
Figure CN224806792U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of medical device technology, specifically relating to an intelligent infusion device. Background Technology
[0002] Intravenous infusion is one of the most common nursing procedures in clinical practice. Currently, the common method involves the patient or caregiver pressing a call button when the IV fluid is almost finished or when the patient feels uncomfortable with the infusion rate. The nurse then manually intervenes. However, many elderly people living alone or young people living alone often go to the hospital for intravenous treatment without a caregiver, increasing the risk of infusion-related complications. The large volume of infusions also significantly increases the workload of monitoring infusions. Medical staff need to invest considerable manpower in information verification, medication preparation, and dressing changes, resulting in cumbersome procedures. During peak periods, it is difficult to respond promptly to patient needs, especially in multi-patient wards, where there are risks such as unequal resource allocation and patients adjusting the infusion rate without authorization, leading to adverse consequences. With the development of medical technology and increasing demands for the quality of medical services, improving the intelligence of infusion processes is becoming increasingly important. While some existing infusion devices include level sensors and alarms, their functionality is limited, lacking real-time speed measurement and adjustment, and infusion pressure monitoring, which fails to meet clinical needs. Utility Model Content
[0003] The purpose of this invention is to address the shortcomings of existing technologies and provide an intelligent infusion device with better safety and stability.
[0004] To achieve the above objectives, the technical solution of this utility model is implemented as follows: This utility model provides an intelligent infusion device, including a main support and an automatic dressing change module, a speed measurement and adjustment module, a controller module, a wireless transmission module, and a power supply module mounted on the main support. The automatic dressing change module includes a rotating support, a rotating drive structure, a liquid level sensor, an infusion bottle gripper, a lifting and puncture structure, and a lifting and puncture structure. The rotating support includes several open-type dressing platforms with frustum-shaped through holes. The liquid level sensor and the infusion bottle gripper detect and fix the infusion bottles in the same dressing platform. The lifting and puncture structure includes a lifting platform. The system includes a puncture device positioning block with a puncture device fixing groove on the lifting platform. The speed measurement and adjustment module includes a drip chamber speed measurement structure and a catheter speed adjustment structure. The drip chamber speed measurement structure includes a drip chamber fixing part and a drip speed sensor facing the drip chamber. The catheter speed adjustment structure includes an infusion catheter fixing part, a pressure block for squeezing the infusion catheter, a pressure block driving structure for driving the pressure block to move, and a pressure sensor for measuring the pressure of the infusion catheter. The controller module is communicatively connected to the automatic dressing module, the speed measurement and adjustment module, the wireless transmission module, and the power supply module.
[0005] In one embodiment, the rotary drive structure includes a stepper motor, a drive pulley, a transmission belt, and a driven pulley that cooperate with each other, and the driven pulley is fixedly connected to the rotary support.
[0006] In one embodiment, the lifting drive structure includes a geared motor and a lead screw that cooperate with each other, and the lead screw is threadedly connected to the lifting platform.
[0007] In one embodiment, the lifting puncture structure further includes a positioning block gripper disposed on the lifting platform for clamping the puncture device positioning block.
[0008] In one embodiment, a heating module is also included, the heating module including a mounting part and a retractable heating rod mounted in the mounting part, the surface of the heating rod having a groove for winding an infusion tubing.
[0009] In one embodiment, a disinfection module is also included, the disinfection module comprising an alcohol bottle and an atomizer connected to the alcohol bottle, the nozzle of the atomizer being positioned directly above the opening of the infusion bottle.
[0010] In one embodiment, the pressure block drive structure includes a stepper motor and a lead screw that cooperate with each other, and the lead screw is threadedly connected to the pressure block.
[0011] In one embodiment, the main support is also provided with a display and a shelf.
[0012] In one embodiment, the controller module is a microcontroller, and the wireless transmission module is a LoRa wireless sensor network networking module.
[0013] In one embodiment, the main support is further provided with an audible and visual alarm module, which is communicatively connected to the controller module.
[0014] Compared with existing technologies, the advantages of this intelligent infusion device are as follows: the open-top design of the dressing table can accommodate medicine bottles of different lengths and sizes, effectively saving medical staff time in assembling infusion bottles; a liquid level sensor monitors changes in the liquid level inside the infusion bottle, and when the liquid level drops to a preset value, the automatic dressing module can perform stable and precise automatic dressing changes. Compared with traditional manual dressing changes, this greatly reduces the number of steps and workload for nurses, improves dressing change efficiency, and reduces the risk of infection that may be caused by manual operation; during the infusion process, a drip rate sensor can detect the real-time infusion drip rate, and the infusion speed can be adjusted in a timely manner through a catheter speed adjustment structure. Compared with traditional infusion speed adjustment methods, the speed adjustment structure of the catheter has higher accuracy and can better meet the infusion needs of different patients, ensuring infusion safety; at the same time, the liquid level sensor, drip rate sensor, and pressure sensor can monitor the infusion status during dressing changes simultaneously, playing a multiple safety role and better ensuring the patient's infusion safety. Attached Figure Description
[0015] Figure 1 This is a perspective structural diagram of an embodiment of an intelligent infusion device according to the present invention; Figure 2 for Figure 1 A schematic diagram of the intelligent infusion device from another angle; Figure 3 for Figure 1 A three-dimensional structural diagram of the automatic dressing change module in the intelligent infusion device shown. Figure 4 for Figure 3 The diagram shows a cross-sectional view of the automatic dressing change module. Figure 5 for Figure 3 The diagram shows the structure of the automatic dressing change module when inserting the needle into the infusion bottle. Figure 6 for Figure 3 The diagram shows the structure of the automatic dressing change module when removing the needle from the infusion bottle. Figure 7 for Figure 1 A three-dimensional structural diagram of the intelligent infusion device when the heating module is not heated; Figure 8 for Figure 1 A three-dimensional structural diagram of the heating module in the intelligent infusion device shown during heating. Figure 9 for Figure 1 The diagram shows a cross-sectional view of the speed measurement and control module and the heating module in the intelligent infusion device.
[0016] Explanation of reference numerals in the attached diagram: 1 Main support, 11 Display, 12 Storage platform, 2 Automatic dressing change module, 21 Rotary support, 211 Dressing platform, 212 Fixed central shaft, 22 Rotary drive structure, 221 Driven pulley, 222 Driven pulley, 223 Rotary stepper motor, 23 Liquid level sensor mounting platform, 24 Infusion bottle gripper, 241 Infusion bottle gripper servo motor, 25 Lifting puncture structure, 26 Lifting drive structure, 261 Lifting platform, 262 Gear motor, 263 Puncture device positioning block, 2 64. Puncture device; 265. Positioning block gripper; 266. Positioning block gripper servo motor; 267. Flange; 268. Lifting screw; 27. Storage box; 3. Speed measurement and adjustment module; 31. Drip chamber fixing part; 32. Drip speed sensor; 33. Infusion tubing fixing part; 34. Pressure block; 35. Pressure block drive structure; 351. Speed regulating motor; 352. Speed regulating screw; 353. Stepper motor flange; 36. Pressure sensor; 4. Heating module; 41. Mounting part; 42. Heating rod; 43. Circular magnet; 5. Sterilization module; 6. Infusion bottle. Detailed Implementation
[0017] See also Figure 1-9 This embodiment provides an intelligent infusion device, including a main support 1 and an automatic dressing change module 2, a speed measurement and adjustment module 3, a heating module 4, a disinfection module 5, a controller module, a wireless transmission module, and a power supply module mounted on the main support 1. The controller module is communicatively connected to the automatic dressing change module 2, the speed measurement and adjustment module 3, the heating module 4, the disinfection module 5, the wireless transmission module, and the power supply module.
[0018] In this embodiment, as Figure 3 As shown, the automatic dressing module 2 includes a rotating support 21, a rotating drive structure 22, a liquid level sensor, an infusion bottle gripper 24, a lifting puncture structure 25, and a lifting drive structure 26. The rotating support 21 includes four open-type dressing platforms 211 with inverted frustum-shaped through holes, and the four dressing platforms 211 are evenly distributed on the circular rotating support 21. The liquid level sensor is a capacitive liquid level sensor, installed on... Figure 6 The liquid level sensor mounting platform 23 shown is located near the mouth of the infusion bottle 6. When the liquid level in the infusion bottle 6 changes, causing a change in capacitance, the capacitive liquid level sensor receives the capacitance change signal and feeds it back to the controller. As the infusion progresses, when the liquid level in the infusion bottle 6 falls below a preset height, the controller controls the automatic medication change module 2 to change the medication based on the capacitance change signal fed back by the capacitive liquid level sensor. In other embodiments, a photoelectric liquid level sensor can also be considered as a backup solution. When light is refracted and reflected at the liquid-air interface, the photoelectric liquid level sensor can detect changes in liquid level and feed it back to the controller to ensure the reliability of liquid level monitoring.
[0019] The drug placement platform 211 is an open-mouth design with an inverted frustum-shaped through hole. When the infusion bottle 6 is placed, the bottle opening faces vertically downwards. The open-mouth design can accommodate drug bottles of different lengths and sizes. Combined with the inverted frustum-shaped through hole, no manual adjustment is required. Gravity ensures that the position of the bottle opening after placement is basically the same as the position of the corresponding puncture device 26, effectively saving medical staff time in assembling the infusion bottle 6 on the rotating support 21. The infusion bottle gripper 24 is used to cooperate with the open-mouth design of the drug placement platform 211. After the rotating support 21 rotates the infusion bottle 6, which is to be infused next, to the position facing the puncture device 264, the infusion bottle gripper 244 is controlled by the infusion bottle gripper servo motor 241 to clamp the infusion bottle 6, preventing the infusion bottle 6 from moving upwards or popping out when the lifting puncture structure 25 punctures the bottle opening.
[0020] The rotary drive structure 22 includes a rotary stepper motor 223, a drive pulley 222, a driven pulley 221, and a transmission belt that cooperate with each other. The rotary support 21 is rotatably connected to the main support 1 through a fixed central shaft 212. The driven pulley 221 is fixedly connected to the fixed central shaft 212 of the rotary support 21. The rotary stepper motor 223 is a J-4218HB4401 stepper motor. When the liquid level sensor detects that the liquid level of the infusion bottle is equal to or lower than the preset value, the rotary stepper motor 223 receives a medication change command from the controller module. The infusion bottle gripper 24 is released, and the rotary stepper motor 223 rotates at a preset angle. The drive pulley 222 drives the driven pulley 221 to rotate 90° through the transmission belt, thereby driving the rotary support 21 to rotate 90°, so that the infusion bottle 6 that needs to be infused next is aligned with the puncture device 264 on the lifting puncture structure 25. In the rotary drive structure 22, the transmission belt, while transmitting power, also plays a certain role in fixing the driving pulley 222 and the driven pulley 221, giving the rotary drive structure 22 better transmission accuracy and stability, and ensuring the accuracy of each medicine change.
[0021] like Figure 4As shown, the lifting puncture structure 25 includes a lifting platform 261, a puncture device positioning block 263 with a puncture device fixing groove on the lifting platform 261, and a positioning block gripper 265 on the lifting platform 261 for clamping the puncture device positioning block 263 during puncture. The puncture device 264 is fixed on the puncture device positioning block 263. The lifting drive structure 26 includes a geared motor 262 and a lifting screw 268 that cooperate with each other. The geared motor 262 can be a JGY370 worm gear motor. When the geared motor 262 starts to rotate, the flange 267 on the lifting screw 268 drives the lifting platform 261 to rise and perform the needle insertion operation. The infusion bottle gripper 24 acts as a cantilever beam to prevent the infusion bottle 6 from being pushed out. When the geared motor 262 reaches the preset rotation angle, it will stop rotating. At this time, the puncture device 264 has been inserted into the infusion bottle 6. The needle removal operation is the same. The positioning block gripper 265 is controlled by the positioning block gripper servo motor 266. During puncture, the positioning block gripper 265 clamps the puncture device positioning block 263, which can prevent the puncture device 264 from being inaccurate or misaligned. During infusion, the infusion bottle gripper 24 and the positioning block gripper 265 remain clamped. A specific button can be set to control the release of the infusion bottle gripper 24 and the positioning block gripper 265. For example, when the patient needs to go to the toilet or undergo an examination, the infusion bottle 6 can be removed after the button is released.
[0022] like Figure 7-8As shown, the speed measurement and adjustment module 3 includes a drip chamber speed measurement structure and a catheter speed adjustment structure. The drip chamber speed measurement structure includes a drip chamber fixing part 31 and a drip rate sensor 32 positioned opposite the drip chamber. The catheter speed adjustment structure includes an infusion catheter fixing part 33, a pressure block 34 for squeezing the infusion catheter, a pressure block drive structure 35 for driving the pressure block 34, and a pressure sensor 36 for measuring the pressure of the infusion catheter. The pressure sensor 36 is installed at the end of the infusion tube closest to the patient to monitor the infusion pressure in real time. The pressure block drive structure 35 includes a speed-regulating motor 351 and a speed-regulating screw 352 that cooperate with each other. The speed-regulating screw 352 is threadedly connected to the pressure block 34 through a stepper motor flange 353. The drip rate sensor employs a non-contact in-line liquid sensor, specifically an infrared through-beam sensor. At the start of infusion, droplets fall sequentially from the drip chamber. The transmitter of the infrared through-beam sensor emits an infrared signal. The droplets falling at the drip chamber fixing part 31 act as light-blocking agents, causing a signal change. The receiver of the infrared through-beam sensor receives the signal and transmits it to the controller module for flow rate calculation. When drip rate adjustment is needed, the speed-regulating motor 351 rotates at a specific angle according to the controller module's instructions, driving the pressure block 34 to move and compress the infusion tubing secured to the infusion tubing fixing part 33, thereby adjusting the flow rate of the infusion tubing and achieving drip rate control. The stepper motor 42 rotates at a 1.8° angle, allowing for precise control of the drug drip rate. During automatic medication change, the pressure block drive structure 35 drives the pressure block 34 to close the current infusion tubing, preventing drug leakage. During normal intravenous infusion, the infusion pressure remains within a certain range. When abnormal pressure occurs, such as intubation blockage or backflow of blood, the pressure sensor 36 can promptly feed back the abnormal signal to the controller module so that appropriate measures can be taken. The level sensor, drip rate sensor 32, and pressure sensor 36 can simultaneously monitor the infusion status during dressing changes, providing multiple layers of protection and better ensuring the patient's infusion safety.
[0023] In this embodiment, the heating module 4 includes a mounting part 41 and a retractable heating rod 42 installed within the mounting part 41. The surface of the heating rod 42 is provided with a groove for winding the infusion tubing. When not heating, a circular magnet 43 magnetically attracts the heating rod 42 into the mounting part 41. The heating rod 42 can be pulled out in cold weather. After being pulled out, the heating rod 42 automatically starts working, with a rated operating temperature set at 36°C. A temperature control fuse is also set, automatically stopping operation when the heating rod temperature exceeds 38°C and resuming heating when it falls below 34°C. The disinfection module 5 includes an alcohol bottle and a nebulizer connected to the alcohol bottle. The nozzle of the nebulizer is positioned directly above the mouth of the infusion bottle 6. The nebulizer can atomize alcohol. After detecting that the current infusion bottle has been used up, before performing the dressing change operation, the disinfection module 5 will spray out the atomized alcohol a few seconds in advance. The alcohol spraying process lasts for about 3 seconds, which can thoroughly disinfect the bottle opening before changing the dressing. This step can prevent the bottle opening from being exposed to the air for too long and causing bacterial contamination, ensuring that the bottle opening is kept clean before infusion.
[0024] In this embodiment, the main support 1 is also equipped with a display 11 and a shelf 12. The controller module is an STM32 series microcontroller, and the wireless transmission module is a LoRa wireless sensor network networking module. All data detected in the intelligent infusion device can be transmitted to the intelligent terminal through the wireless network module. The controller module can communicate with the intelligent terminal through the wireless network module, and the intelligent infusion device can support unified monitoring and management by the intelligent terminal.
[0025] In other embodiments, an audible and visual alarm module can be added, which is communicatively connected to the controller module. If, during the infusion process, no droplets are detected for a period of time, the drip rate is abnormal and cannot be adjusted, or the patient removes the infusion tubing from the device without authorization, an alarm can be triggered via an LED and a buzzer.
[0026] The intelligent infusion device in this embodiment features an open-top design for the medication dispenser, accommodating bottles of varying lengths and sizes. This effectively saves medical staff time in assembling infusion bottles. A liquid level sensor monitors changes in the liquid level within the infusion bottle. When the liquid level drops to a preset value, an automatic dressing change module performs a stable and precise automatic dressing change. Compared to traditional manual dressing changes, this significantly reduces nurses' operational steps and workload, improves dressing change efficiency, and lowers the risk of infection associated with manual operation. During the infusion process, a drip rate sensor detects the real-time drip rate, and a catheter speed adjustment structure allows for timely adjustment of the infusion rate. Compared to traditional infusion speed adjustment methods, the catheter speed adjustment structure offers higher precision, better meeting the infusion needs of different patients and ensuring infusion safety. Simultaneously, the liquid level sensor, drip rate sensor, and pressure sensor monitor the infusion status during dressing changes, providing multiple layers of protection and further ensuring patient infusion safety.
[0027] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of protection of this application is limited to these examples; within the framework of this application, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of different aspects of one or more embodiments of this application as described above, which are not provided in detail for the sake of brevity.
[0028] One or more embodiments in this application are intended to cover all such substitutions, modifications, and variations that fall within the broad scope of this application. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of one or more embodiments in this application should be included within the protection scope of this application.
Claims
1. An intelligent infusion device, characterized in that, The system includes a main support (1) and an automatic dressing change module (2), a speed measurement and adjustment module (3), a controller module, a wireless transmission module, and a power supply module mounted on the main support (1). The automatic dressing change module (2) includes a rotating support (21), a rotating drive structure (22), a liquid level sensor, an infusion bottle gripper (24), a lifting and puncture structure (25), and a lifting and drive structure (26). The rotating support (21) includes several open-type dressing platforms (211) with inverted frustum-shaped through holes. The liquid level sensor and the infusion bottle gripper (24) detect and fix the infusion bottles in the same dressing platform (211). The lifting and puncture structure (25) includes a lifting platform (261) and... A puncture positioning block (263) with a puncture fixing groove is provided on the lifting platform (261). The speed measurement and adjustment module (3) includes a dripping bucket speed measurement structure and a catheter speed adjustment structure. The dripping bucket speed measurement structure includes a dripping bucket fixing part (31) and a dripping speed sensor (32) facing the dripping bucket. The catheter speed adjustment structure includes an infusion catheter fixing part (33), a pressure block (34) for squeezing the infusion catheter, a pressure block driving structure (35) for driving the pressure block (34) to move, and a pressure sensor (36) for measuring the pressure of the infusion catheter. The controller module is communicatively connected to the automatic dressing module (2), the speed measurement and adjustment module (3), the wireless transmission module, and the power supply module.
2. The intelligent infusion device as described in claim 1, characterized in that, The rotary drive structure (22) includes a stepper motor, a drive pulley, a transmission belt, and a driven pulley that cooperate with each other. The driven pulley is fixedly connected to the rotary support (21).
3. The intelligent infusion device as described in claim 1, characterized in that, The lifting drive structure (26) includes a geared motor and a lead screw that cooperate with each other, and the lead screw is threadedly connected to the lifting platform (261).
4. The intelligent infusion device as described in claim 1, characterized in that, The lifting puncture structure (25) also includes a positioning block gripper (265) provided on the lifting platform (261) for clamping the puncture device positioning block (263).
5. The intelligent infusion device as described in claim 1, characterized in that, It also includes a heating module (4), which includes a mounting part (41) and a retractable heating rod (42) installed in the mounting part (41). The surface of the heating rod (42) is provided with a groove for winding the infusion tubing.
6. The intelligent infusion device as described in claim 1, characterized in that, It also includes a disinfection module (5), which includes an alcohol bottle and an atomizer connected to the alcohol bottle, with the nozzle of the atomizer facing the mouth of the infusion bottle.
7. The intelligent infusion device according to any one of claims 1-6, characterized in that, The pressure block drive structure (35) includes a stepper motor and a lead screw that cooperate with each other, and the lead screw is threadedly connected to the pressure block (34).
8. The intelligent infusion device according to any one of claims 1-6, characterized in that, The main support (1) is also equipped with a display (11) and a shelf (12).
9. The intelligent infusion device according to any one of claims 1-6, characterized in that, The controller module is a microcontroller, and the wireless transmission module is a LoRa wireless sensor network networking module.
10. The intelligent infusion device according to any one of claims 1-6, characterized in that, The main support (1) is also equipped with an audible and visual alarm module, which is communicatively connected to the controller module.