Safety device for clinically identifying adverse reaction

Abstract

The invention relates to the field of instruments for inputting a medium into a human body or onto the human body, in particular to a safety device for clinically identifying adverse reactions, which comprises a liquid level detection block, a liquid level sensor is arranged in the liquid level detection block, the two ends of the liquid level detection block are connected with container bandages, and the free ends of the two container bandages are detachably connected; the device further comprises a bubble detection block, a flow detection block and a pressure detection block, a bubble sensor is arranged in the bubble detection block, a flow sensor is arranged in the flow detection block, a pressure sensor is arranged in the pressure detection block, a power source is arranged in the liquid level detection block, and the liquid level sensor, the bubble sensor, the flow sensor and the pressure sensor are all connected with the power source. The device further comprises a controller, the liquid level sensor, the bubble sensor, the flow sensor and the pressure sensor are all electrically connected with the controller, and the controller is electrically connected with an alarm. Detection and mutual verification of multiple sensors are combined, and the detection precision can be improved.

Description

Technical Field

[0001] The present invention relates to the field of devices for inputting a medium into or onto the human body, and particularly to a safety device for clinically identifying adverse reactions. Background Art

[0002] In the field of clinical medicine, infusion is an extremely common and important treatment method. To ensure the safety and effectiveness of the infusion process, timely monitoring of the infusion status and prevention of adverse reactions have become key links, and a variety of related monitoring technologies have emerged and been widely used.

[0003] The infusion monitoring device based on a liquid level sensor is one of the currently commonly used technologies. This device accurately judges the infusion process by detecting the change in the liquid level in the infusion bottle or infusion bag in real time. When the liquid level drops to a preset threshold, it can quickly issue an alarm to remind medical staff to replace the infusion container or end the infusion in time, effectively avoiding the risk of air entering the infusion pipeline due to the liquid in the infusion container being emptied. However, this technology can only monitor the liquid level in the infusion container and cannot real-time sense whether there is air in the infusion pipeline, and there are limitations in preventing air from entering the patient's body.

[0004] The technology of using a pressure sensor to monitor the pressure of the infusion pipeline can keenly sense the subtle changes in pressure during the infusion process. When the infusion pipeline is blocked, the liquid flow is blocked and the pressure will rise significantly. After the pressure sensor detects an abnormal pressure signal, it can trigger the alarm mechanism in time so that medical staff can quickly take measures. However, although this technology can detect the pressure change in the infusion tube, the pressure change may be caused by various factors, such as the change in the infusion speed and the change in the patient's body position. Simply relying on the pressure sensor to judge the entry of air is prone to misjudgment.

[0005] In addition, some high-end infusion devices are equipped with a bubble detection function based on the principle of ultrasonic detection. When the ultrasonic signal detects that there is a bubble passing through the infusion pipeline, the device will immediately trigger an alarm, providing a certain guarantee for preventing air from entering the patient's body. However, the ultrasonic bubble detection technology has a detection blind area, and it may not be able to accurately identify tiny bubbles or bubbles in a specific position.

[0006] In summary, the existing technologies based on liquid level sensors, pressure sensors, and bubble detection play important roles in clinical infusion monitoring respectively. However, in terms of preventing the adverse reaction of infusion air embolism, due to problems such as errors in single-sensor detection and limited monitoring range, there are certain limitations and cannot meet the higher requirements of clinical infusion safety monitoring. Summary of the Invention

[0007] The present invention aims to provide a safety device for clinically identifying adverse reactions to solve the problems of errors and limited detection range in the prior art during detection.

[0008] To achieve the above object, the present invention adopts the following technical solutions:

[0009] A safety device for clinically identifying adverse reactions includes a liquid level detection block. A liquid level sensor is arranged inside the liquid level detection block. Container straps are connected to both ends of the liquid level detection block, and the free ends of the two container straps are detachably connected. It also includes a bubble detection block, a flow rate detection block, and a pressure detection block. A bubble sensor is arranged inside the bubble detection block, a flow rate sensor is arranged inside the flow rate detection block, and a pressure sensor is arranged inside the pressure detection block. A power supply is arranged inside the liquid level detection block. The liquid level sensor, the bubble sensor, the flow rate sensor, and the pressure sensor are all connected to the power supply. It further includes a controller. The liquid level sensor, the bubble sensor, the flow rate sensor, and the pressure sensor are all electrically connected to the controller, and the controller is electrically connected to an alarm.

[0010] Preferably, as an improvement, the bubble detection block, the flow rate detection block, and the pressure detection block are detachably connected in sequence from top to bottom by magnets. A base is also connected to the bottom of the pressure detection block by a magnet. U-shaped slots are opened in one direction on the bubble detection block, the flow rate detection block, the pressure detection block, and the base. Rubber pads are arranged on the inner walls of the slots. Through holes are opened in the middle of the rubber pads. Installation cavities are arranged inside the inner walls of both sides of the slots at the through holes. Ball beads are slidably arranged inside the installation cavities. The ball beads are connected to return springs. Top sheets are arranged on the tops of the flow rate detection block, the pressure detection block, and the base. The top sheets can be inserted into the slots of the detection block above it and block the through holes.

[0011] Preferably, as an improvement, the ball beads are also connected to connecting rods made of permanent magnets. The return springs are slidably sleeved outside the connecting rods. Electromagnets are arranged at the free ends of the connecting rods. The surfaces of the electromagnets opposite to the connecting rods repel each other. The electromagnets are connected to the power supply, and the power supply is electrically connected to the controller. A switch for controlling the power supply to cut off the power to the electromagnet is arranged on the liquid level detection block.

[0012] Preferably, as an improvement, the container straps are fixed on the infusion stand, and the bubble detection block, the flow rate detection block, and the pressure detection block are all slidably arranged on the infusion stand.

[0013] Preferably, as an improvement, the container straps are slidably connected to the infusion stand, and hanging straps are arranged on the container straps, and the length of the hanging straps can be adjusted.

[0014] Preferably, as an improvement, cams are rotatably installed inside the inner walls of the slots. Torsion springs are connected to the rotating shafts of the cams. When the torsion springs are in the natural state, the convex parts of the cams are located inside the slots. The top sheets can drive the cams to rotate when inserted into the slots.

[0015] The principles and beneficial effects of this solution are as follows:

[0016] 1. This solution combines the detection of multiple sensors, overcomes the limitations of single-sensor detection, forms a comprehensive, accurate, and reliable infusion monitoring system, and greatly improves the level of infusion safety guarantee. Specifically:

[0017] In actual use, the container strap is wrapped around and fixed at the bottom of the infusion container, so that the liquid level detection block is located on the side of the bottom of the infusion container. The bubble detection block, flow detection block, pressure detection block, and base are then clamped on the infusion tube through the card slots and the beads in the card slots. The liquid level sensor can not only detect the liquid level change in the infusion container in real time to judge the infusion process, but also detect the liquid level change rate in the infusion container to preliminarily judge whether the infusion is smooth; the pressure sensor can monitor the pressure in the infusion pipeline in real time; the bubble sensor can detect whether air enters the infusion tube; the flow sensor monitors the infusion flow rate in real time to assist in judging whether there is an abnormality in the infusion pipeline. These sensors not only perform their respective functions to complete the detection of infusion data in various aspects. In addition, the data of these sensors can also complement and verify each other, reduce the influence of errors, and improve the accuracy of air detection in the infusion tube. For example, when the liquid level sensor detects an abnormal liquid level change, the data of the bubble sensor can be combined to judge whether the liquid level change is abnormal due to air entering the infusion tube, avoiding misjudgment caused by a single sensor failure or error, and greatly improving the accuracy of the detection result.

[0018] 2. The bubble detection block, flow detection block, and pressure detection block are detachably connected by magnets and combined into a whole when not in use, which is convenient for storage and carrying. When in use, they can be separated in turn and slid on the infusion tube for positioning. Using the internal bead and return spring structure, the detection block can be automatically clamped and fixed to the infusion tube. This makes the device easy to install, and medical staff can complete the installation and adjustment of the device without complex operations, significantly improving work efficiency; at the same time, according to the actual infusion needs, the positions of each detection block on the infusion tube can be flexibly adjusted to achieve precise monitoring. In addition, when each detection block slides on the infusion tube, it can also straighten the infusion tube to avoid the infusion tube from being twisted. On the one hand, it ensures smooth infusion, and on the other hand, it is also convenient for detection to avoid affecting the detection accuracy due to the twisting of the infusion tube. In addition, the bubble detection block, flow detection block, and pressure detection block are separately arranged and can slide on the infusion tube, so that they can be installed in appropriate places for detection respectively to improve the detection accuracy and avoid interference between detection elements.

[0019] 3. This solution uses a ball detent to connect a permanent magnet link, a return spring, and an electromagnet to form a control component. When air bubbles are detected or the infusion is completed, the controller controls the power supply to energize the electromagnet. The electromagnet generates a repulsive force relative to the link, pushing the link to drive the ball detent to further extend and crush the infusion tube, achieving the closure of the infusion tube. In this way, the automatic emergency closure of the infusion tube can be realized. When the risk of air embolism is detected or the infusion ends, the infusion can be quickly blocked, effectively preventing air from entering the patient's body and ensuring the safety of the patient.

[0020] 4. Further, the container strap can be fixed to the infusion stand to provide additional support and fixation for the infusion container and reduce the shaking of the container. At the same time, the air bubble detection block, the flow rate detection block, and the pressure detection block are slidably arranged on the infusion stand. After the infusion tube is clamped into each detection block, the infusion tube is constrained on the infusion stand. On the one hand, it can prevent the infusion tube from shaking randomly, and on the other hand, it can also reduce the risk of the infusion tube being pulled during the process of moving the infusion stand out. By reducing the shaking of the infusion container and the infusion tube, this solution can also reduce the influence of shaking on the detection results and ensure that each sensor obtains accurate data. The sliding of the detection block on the infusion stand is guided by the infusion stand, which is convenient for medical staff to adjust the detection position according to actual needs. Description of the Drawings

[0021] Figure 1 It is a schematic structural diagram when Embodiment 1 of the present invention is in use.

[0022] Figure 2 It is a partial structural schematic diagram when Embodiment 1 of the present invention is not in use.

[0023] Figure 3 It is a top view cross-sectional view of the air bubble detection block in Embodiment 1 of the present invention.

[0024] Figure 4 It is a side view cross-sectional view of the air bubble detection block and the flow rate detection block in Embodiment 1 of the present invention.

[0025] Figure 5 It is a top view cross-sectional view of the air bubble detection block in Embodiment 2 of the present invention.

[0026] Figure 6 It is a side view cross-sectional view of the air bubble detection block and the flow rate detection block in Embodiment 5 of the present invention. Detailed Description of the Invention

[0027] The following is a more detailed description through specific embodiments:

[0028] The reference numerals in the drawings of the specification include: infusion container 1, infusion tube 11, drip chamber 12, container strap 2, liquid level detection block 21, liquid level sensor 22, air bubble detection block 3, air bubble sensor 31, card slot 32, bead 33, rubber pad 34, flow rate detection block 4, flow rate sensor 41, pressure detection block 5, pressure sensor 51, base 6, installation cavity 7, return spring 71, top piece 73, connecting rod 74, mounting ring 75, electromagnet 76, cam 8, and rotating shaft 81.

[0029] Embodiment 1:

[0030] As Figure 1 shown, a safety device for clinically identifying adverse reactions includes a liquid level detection block 21, an air bubble detection block 3, a flow rate detection block 4, and a pressure detection block 5. A liquid level sensor 22 is installed inside the liquid level detection block 21. Container straps 2 are adhesively fixed on both sides of the liquid level detection block 21, and the free ends of the two container straps 2 are detachably connected by Velcro. An air bubble sensor 31 is installed inside the air bubble detection block 3. In this embodiment, the air bubble sensor 31 is an ultrasonic air bubble sensor 31; a flow rate sensor 41 is installed inside the flow rate detection block 4, and a pressure sensor 51 is installed inside the pressure detection block 5. A power supply (not shown in the figure) is installed inside the liquid level detection block 21. The power supply is a micro rechargeable battery. The liquid level sensor 22, the air bubble sensor 31, the flow rate sensor 41, and the pressure sensor 51 are all connected to the power supply through wires. It also includes a controller (not shown in the figure). The liquid level sensor 22, the air bubble sensor 31, the flow rate sensor 41, and the pressure sensor 51 are all electrically connected to the controller, and the controller is electrically connected to an alarm (not shown in the figure).

[0031] Combined with Figure 2 、 Figure 3 and Figure 4 shown, the air bubble detection block 3, the flow rate detection block 4, and the pressure detection block 5 are detachably connected in sequence from top to bottom by magnets. The bottom of the pressure detection block 5 is also detachably connected to the base 6 by a magnet. The air bubble detection block 3, the flow rate detection block 4, the pressure detection block 5, and the base 6 are all provided with U-shaped card slots 32 facing one direction. Rubber pads 34 are adhesively fixed on the inner walls of the card slots 32. Through holes are opened in the middle of the rubber pads 34 on the two side walls of the card slot 32. The through holes communicate with the installation cavity 7. A bead 33 is slidably installed in the installation cavity 7. The bead 33 is connected to a return spring 71, and the bead 33 can penetrate out from the through hole under the action of the return spring 71. Top pieces 73 are adhesively fixed on both sides of the tops of the flow rate detection block 4, the pressure detection block 5, and the base 6. The two top pieces 73 can be inserted into the card slots 32 of the detection block above them to block the through holes on the two side walls of the card slot 32 respectively.

[0032] A method for using a safety device for clinically identifying adverse reactions:

[0033] In actual use, the liquid level detection block 21 is placed on the side of the bottom of the infusion container 1. The container straps 2 on both sides of the liquid level detection block 21 are used to surround the infusion container 1, and the free ends of the straps are connected and fixed through Velcro to ensure that the liquid level detection block 21 is firmly attached to the infusion container 1.

[0034] When not in use, the bubble detection block 3, the flow rate detection block 4, the pressure detection block 5 and the base 6 are sequentially adsorbed and connected from top to bottom by magnets, which is convenient for storage and placement. When the bubble detection block 3, the flow rate detection block 4, the pressure detection block 5 and the base 6 are adsorbed and connected, pay attention to keeping the directions of the card slots 32 of each module consistent so that the card slots 32 can be aligned.

[0035] When in use, the bubble detection block 3, the flow rate detection block 4, the pressure detection block 5 and the base 6 in the adsorbed connection state are clamped onto the infusion tube 11 through the card slots 32. Since the card slots 32 of several modules are aligned, several modules can be clamped onto the infusion tube 11 at one time without multiple clamping operations, and the operation is simple. When clamping onto the infusion tube 11, based on the position of the bubble detection block 3 at the top, usually the bubble detection block 3 is clamped below the drip chamber 12 on the infusion tube 11. When clamping, since several modules are adsorbed to each other, the top pieces 73 at the tops of the flow rate detection block 4, the pressure detection block 5 and the base 6 are all inserted into the detection block above it and block the through holes, so the clamping beads 33 in the through holes cannot pop out, the return spring 71 is compressed, and there is a gap between the top piece 73 and the infusion tube 11. Therefore, several detection blocks and the base 6 can be smoothly clamped onto the infusion tube 11 and can slide along the infusion tube 11. In addition, since a rubber pad 34 is provided on the inner wall of the card slot 32, hard friction between the card slot 32 and the infusion tube 11 can be avoided, and the movement of the detection block will not damage the infusion tube 11.

[0036] After several detection blocks and the base are clamped onto the infusion tube 11, hold the flow rate detection block 4, the pressure detection block 5 and the base 6, separate them as a whole from the bubble detection block 3 and slide the whole along the infusion tube 11 downward until the flow rate detection block 4 slides to a suitable position. After the flow rate detection block 4 is separated from the bubble detection block 3, the top piece 73 at the top of the flow rate detection block 4 is pulled out from the bubble detection block 3, and the through holes on the side walls of the card slot 32 of the bubble detection block 3 are no longer blocked. The return spring 71 resets to drive the clamping beads 33 in the through holes to pop out from the through holes, and the clamping beads 33 on both sides clamp the infusion tube 11, thereby fixing the bubble detection block 3 on the infusion tube 11.

[0037] Similarly, after the flow detection block 4 slides to a proper position, the pressure detection block 5 and the base 6 are separated from the flow detection block 4 as a whole and continue to slide downward until the pressure detection block 5 slides to a proper position. The pressure detection block 5 is separated from the flow detection block 4, and the top piece 73 on the pressure detection block 5 is pulled out from the flow detection block 4, so that the ball 33 in the flow detection block 4 pops out to clamp the infusion tube 11, realizing the fixation of the flow detection block 4.

[0038] Similarly, after the pressure detection block 5 slides to a proper position, the base 6 is separated from the pressure detection block 5, and the top piece 73 on the base 6 is pulled out from the pressure detection block 5, so that the ball 33 in the pressure detection block 5 pops out to clamp the infusion tube 11, realizing the fixation of the pressure detection block 5.

[0039] In this way, the infusion tube 11 can be automatically clamped after each detection block moves into place, realizing the automatic fixation of each detection block. The bubble detection block 3 is usually fixed below the drip chamber 12, the pressure detection block 5 is usually fixed at a position on the infusion tube 11 close to the patient, and the flow detection block 4 is fixed at any position on the infusion tube 11. Therefore, in actual use, the lengths of the circuits between the detection blocks are set according to the above requirements to meet the installation positions of the detection blocks. During the process of moving along the infusion tube 11, each detection block can also straighten the infusion tube 11, avoid the infusion tube 11 from being twisted, effectively avoid the blockage of the infusion tube 11, and at the same time facilitate the detection of each sensor, improving the detection accuracy. In addition, after the top pieces 73 on the flow detection block 4, the pressure detection block 5 and the base 6 are pulled out, they can also be used as guide pieces to limit the position of the infusion tube 11 on both sides, so that the flow detection block 4, the pressure detection block 5 and the base 6 move more smoothly; and after moving into place, the top pieces 73 limit the position of the infusion tube 11 from both sides, which can further prevent the infusion tube 11 from being twisted.

[0040] After the installation is completed, start each sensor, power supply and controller. The liquid level sensor 22 monitors the liquid level height in the infusion container 1 in real time. When the liquid level is lower than the preset minimum liquid level value, a signal is transmitted to the controller; the bubble sensor 31 continuously monitors whether there are bubbles in the infusion tube 11. Once bubbles are detected, a signal is immediately fed back to the controller; the flow sensor 41 monitors the infusion flow rate in real time. If the flow rate is abnormal (higher or lower than the preset normal flow rate range), an abnormal signal is sent to the controller; the pressure sensor 51 monitors the pressure change during the infusion process in real time. When the pressure value exceeds the preset normal pressure range, a signal is transmitted to the controller.

[0041] There is a mutual verification mechanism among multiple sensors. For example, when the bubble sensor 31 detects bubbles, the controller will retrieve the data of the flow sensor 41 and the pressure sensor 51 for comparison. If the flow sensor 41 shows a sudden drop in flow rate and the pressure sensor 51 shows abnormal pressure fluctuations, and the data of the three sensors corroborate each other, it can be highly confirmed that the infusion tube 11 is blocked by bubbles; if only the bubble sensor 31 alarms and there are no obvious changes in the flow and pressure data, the controller will mark this alarm as a pending confirmation state and continuously monitor the data of each sensor for a period of time (1 minute) to prevent false alarms caused by misjudgment of the bubble sensor 31.

[0042] Another example is that when the liquid level sensor 22 detects a rapid drop in the liquid level, the controller will synchronously analyze the data of the flow sensor 41. If the flow data shows an abnormally rapid flow rate, combined with the data of the pressure sensor 51, it is judged whether there is a breakage or leakage in the infusion tube 11. If the pressure also shows an abnormal decrease, this abnormal condition is further confirmed. If there are no abnormalities in the flow and pressure data, it may be a malfunction of the liquid level sensor 22, and medical staff need to check.

[0043] After receiving the abnormal signal confirmed through mutual verification, the controller immediately activates the alarm to give an audible and visual alarm to prompt the medical staff. After hearing the alarm, the medical staff quickly check the specific abnormal information displayed on the controller's display screen (such as too low liquid level, presence of bubbles, abnormal flow or pressure, etc.), and take corresponding treatment measures according to the abnormal situation. For example, if the liquid level is too low, replace the infusion container 1 in time; if bubbles are detected, remove the bubbles in the infusion tube 11; if the flow or pressure is abnormal, check whether the infusion tube 11 is blocked, twisted, or adjust the infusion speed, etc.

[0044] After the infusion is completed, directly remove the bubble detection block 3, the flow detection block 4, the pressure detection block 5 and the base 6 from the infusion tube 11. At this time, the liquid medicine in the infusion tube 11 has been completely infused, and there is no need to worry that directly removing it will affect the infusion tube 11. Since the return spring 71 is already in the reset state at this time, the ball 33 will not further extend after the detection blocks and the base 6 are removed from the infusion tube 11. At this time, the detection blocks and the base 6 are adsorbed and connected in sequence again, so that the detection blocks and the base 6 can be quickly and accurately connected, ensuring that the card slots 32 on them are aligned again, which is convenient for subsequent use. During the adsorption connection process, the top pieces 73 on the flow detection block 4, the pressure detection block 5 and the base 6 are inserted into the card slots 32 of the detection block above them again. The insertion of the top piece 73 forces the ball 33 at the through hole to retract into the through hole, and the return spring 71 is compressed again, thus completing the connection of the three detection blocks and the base 6 for the next use and facilitating storage. It should be noted that the diameter of the infusion tube 11 is very small, and the two balls 33 only need to extend a very small distance to clamp the infusion tube 11. Therefore, when the top piece 73 is inserted into the card slot 32 again, it can smoothly drive the ball 33 back into the through hole.

[0045] Example 2:

[0046] As shown in combination with Figure 5 Figure, the difference between this embodiment and Embodiment 1 is that the ball detent 33 is connected with a connecting rod 74 made of a permanent magnet. The return spring 71 is sleeved on the connecting rod 74 in a sliding manner. One end of the return spring 71 is fixed on the ball detent 33, and the other end is fixed on the mounting ring 75 fixed in the mounting cavity 7. The connecting rod 74 is slidably inserted into the mounting ring 75. The free end of the connecting rod 74 is adhesively fixed with an electromagnet 76. The surface of the electromagnet 76 opposite to the connecting rod 74 repels each other. The electromagnet 76 is connected to a power source, and the power source is electrically connected to a controller. A switch for controlling the power source to cut off the power supply to the electromagnet 76 is provided on the liquid level detection block 21.

[0047] Adopting this embodiment, while alarming, the controller controls the power source to energize the electromagnet 76. In the initial state, the connecting rod 74 is in contact with the electromagnet 76. After the electromagnet 76 is energized, it repels the connecting rod 74, causing it to drive the ball detent 33 to further slide towards the outside of the through hole. Thus, the ball detent 33 further clamps the infusion tube 11, realizing the automatic clamping of the infusion tube 11 before the medical staff come to handle it, and protecting the safety of the patient.

[0048] Example 3:

[0049] The difference between this embodiment and Embodiment 1 is that the container strap 2 is adhesively fixed on the infusion stand. The bubble detection block 3, the flow detection block 4, and the pressure detection block 5 are all slidably connected to the infusion stand (realized by opening a chute on the infusion stand and matching with the sliders on each detection block). When the bubble detection block 3, the flow detection block 4, the pressure detection block 5, and the base 6 are not in use, they can be stabilized on the infusion stand by the friction between the sliders and the chute.

[0050] The container strap 2 is adhesively fixed to the infusion stand, which can form a stable overall structure between the infusion container 1 and the infusion stand. This fixing method greatly reduces the displacement risk of the infusion container 1 caused by shaking and collision. Especially when the patient pushes the infusion stand out for activities, even if encountering bumps or accidental collisions, the infusion container 1 can remain stable, avoiding the infusion tube 11 from being twisted and entangled due to the shaking of the container, and thus ensuring the smoothness of the infusion tube 11 path, laying a foundation for safe infusion.

[0051] The sliding connection design of the bubble detection block 3, the flow detection block 4, and the pressure detection block 5 with the infusion stand enables the medical staff to slide the detection blocks along the direction of the infusion stand after the infusion tube 11 is inserted into the card slots 32 of each detection block. During this process, the movement of the detection blocks can naturally straighten the infusion tube 11, eliminating the bending and folding phenomena of the infusion tube 11 caused by random hanging, keeping the infusion tube 11 in a smooth conveying channel, reducing the liquid flow resistance caused by the pipeline bending, and avoiding interfering with the normal detection of the flow sensor 41 and the pressure sensor 51 due to the resistance change, thereby improving the accuracy of the detection data.

[0052] Meanwhile, the process of the detection block sliding along the infusion rack is also the process of gathering the infusion tube 11. After being gathered, the infusion tube 11 neatly adheres to one side of the infusion rack, effectively avoiding the situation where the infusion tube 11 gets hooked or pulled by surrounding objects when the patient moves. In the past, when the patient pushed the infusion rack to walk, the loose infusion tube 11 was easily hooked by obstacles such as door frames, tables and chairs, which not only might cause the infusion tube 11 to be damaged and leak liquid, but also interrupt the infusion, and even lead to serious risks such as air embolism. However, in this embodiment, by effectively gathering and fixing the infusion tube 11, such risks are significantly reduced, ensuring the infusion safety when the patient moves.

[0053] In addition, the straightening and gathering of the infusion tube 11 make the flow of the liquid in the pipeline more stable and regular, and the liquid level sensor 22, the air bubble sensor 31, the flow sensor 41 and the pressure sensor 51 can obtain more accurate and reliable data. For example, the smooth state of the infusion tube 11 can avoid misjudgment of air bubble accumulation caused by local bending, and can also make the flow rate and pressure data truly reflect the actual situation of the infusion process, thereby improving the detection accuracy, enabling the device to more timely and accurately identify adverse reactions during the infusion process, and providing strong support for the diagnosis and intervention of medical staff.

[0054] Embodiment 4:

[0055] The difference between this embodiment and Embodiment 3 is that the container strap 2 is also slidably connected to the infusion rack through a slider, and a hanging strap (not shown in the figure) is also provided on the container strap 2 for hanging on the hook at the top of the infusion rack, and the length of the hanging strap can be adjusted, and the adjustment method of the backpack strap in the prior art can be adopted. Such a setting enables the infusion container 1 to adjust the position height on the infusion rack according to needs to meet the usage requirements of the patient. For example, when the patient sits or lies down, the position height of the container strap 2 is lowered so that the patient can observe the infusion situation with the naked eye. When the patient pushes the infusion rack out for activities or goes to the toilet, the position height of the container strap 2 is raised so that the infusion can proceed smoothly.

[0056] Embodiment 5:

[0057] Combined with Figure 6 As shown, the difference between this embodiment and Embodiment 1 is that a cam 8 is rotatably installed inside the inner wall of the card slot 32, a torsion spring (not shown in the figure) is connected to the rotating shaft 81 of the cam 8, and the convex part of the cam 8 is located inside the card slot 32 in the natural state of the torsion spring, and the top piece 73 can drive the cam 8 to rotate when inserted into the card slot 32.

[0058] In this embodiment, when not in use, the top piece 73 is located in the card slot 32 to block the ball 33 while also blocking the cam 8. At this time, the convex part of the cam 8 is located inside the side wall of the card slot 32, and the torsion spring stores energy. When the top piece 73 is pulled out of the card slot 32, the ball 33 pops into the card slot 32. At the same time, the cam 8 also rotates downward with the convex part into the card slot 32 under the action of the torsion spring. The ball 33 and the convex part of the cam 8 clamp the infusion tube 11 at the same time, effectively improving the fixing effect of the detection block.

[0059] When the top piece 73 is inserted into the card slot 32 again, the top piece 73 not only presses the ball 33 into the installation cavity 7, but also pushes the convex part of the cam 8 upward to rotate it into the cavity inside the inner wall of the card slot 32, thereby resetting the ball 33 and the cam 8 for the next use.

[0060] The above are only embodiments of the present invention. Specific technical solutions and / or common knowledge such as characteristics well known in the art are not described in detail herein. It should be noted that for those skilled in the art, without departing from the technical solution of the present invention, several deformations and improvements can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the implementation effect of the present invention and the practicality of the patent. The protection scope required by this application should be subject to the content of its claims, and the specific implementation manners and the like recorded in the specification can be used to interpret the content of the claims.

Claims

1. A safety device for clinically identifying adverse reactions, characterized in that: It includes a liquid level detection block. A liquid level sensor is arranged inside the liquid level detection block. Container straps are connected to both ends of the liquid level detection block, and the free ends of the two container straps are detachably connected. It also includes a bubble detection block, a flow rate detection block, and a pressure detection block. A bubble sensor is arranged inside the bubble detection block, a flow rate sensor is arranged inside the flow rate detection block, and a pressure sensor is arranged inside the pressure detection block. A power supply is arranged inside the liquid level detection block. The liquid level sensor, the bubble sensor, the flow rate sensor, and the pressure sensor are all connected to the power supply. It further includes a controller. The liquid level sensor, the bubble sensor, the flow rate sensor, and the pressure sensor are all electrically connected to the controller, and the controller is electrically connected to an alarm.

2. The safety device for clinically identifying adverse reactions according to claim 1, wherein: The bubble detection block, the flow rate detection block, and the pressure detection block are detachably connected in sequence from top to bottom by magnets. A base is also connected to the bottom of the pressure detection block by a magnet. U-shaped card slots are opened in one direction on the bubble detection block, the flow rate detection block, the pressure detection block, and the base. Rubber pads are arranged on the inner walls of the card slots. Through holes are opened in the middle of the rubber pads. Installation cavities are arranged inside the inner walls on both sides of the card slots at the through hole positions. Ball beads are slidably arranged inside the installation cavities. The ball beads are connected to return springs. Top pieces are arranged on the tops of the flow rate detection block, the pressure detection block, and the base. The top pieces can be inserted into the card slots of the detection blocks above them and block the through holes.

3. The safety device for clinically identifying adverse reactions according to claim 2, wherein: The ball beads are also connected to connecting rods made of permanent magnets. The return springs are slidably sleeved outside the connecting rods. Electromagnets are arranged at the free ends of the connecting rods. The surfaces of the electromagnets opposite to the connecting rods repel each other. The electromagnets are connected to the power supply, and the power supply is electrically connected to the controller. A switch for controlling the power supply to cut off the power to the electromagnets is arranged on the liquid level detection block.

4. The safety device for clinically identifying adverse reactions according to claim 3, characterized in that: The container straps are fixed on the infusion stand, and the bubble detection block, the flow rate detection block, and the pressure detection block are all slidably arranged on the infusion stand.

5. The safety device for clinically identifying adverse reactions according to claim 4, characterized in that: The container straps are slidably connected to the infusion stand, and hanging straps are arranged on the container straps, and the lengths of the hanging straps can be adjusted.

6. The safety device for clinically identifying adverse reactions according to claim 5, characterized in that: Cams are rotatably installed inside the inner walls of the card slots. Torsion springs are connected to the rotating shafts of the cams. When the torsion springs are in the natural state, the protruding parts of the cams are located inside the card slots. When the top pieces are inserted into the card slots, they can drive the cams to rotate.

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