Infusion tube blocking control device and infusion system
By introducing detection units and blocking units into the infusion pipeline, the residual amount of medicine is automatically detected and the infusion pipeline is controlled to open and break, the problems of blood recovery and air embolism in intravenous infusion are solved, and the safety and accuracy of the infusion process are achieved. The sequential management of multiple bottles of medicine liquids has been optimized.
Patent Information
- Application Number
- CN202411300174.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Priority Date
- 2023-09-15
- Filing Date
- 2024-09-18
- Publication Date
- 2024-12-27
AI Technical Summary
During intravenous infusion, the infusion cannot be automatically, accurately and stably suspended or stopped, resulting in safety hazards such as blood recovery and air embolism. The infusion sequence of multiple bottles of medicine may lead to poor treatment results or a threat to the patient's safety.
A infusion tube blocking control device is designed, including a detection unit and a blocking unit, which controls the on-off of the infusion pipeline by detecting the remaining amount of medicine in the infusion container, ensuring the automation and safety of the infusion process. The device uses photoelectric sensors, infrared sensors or liquid level sensors to detect the remaining amount of medicine, and block the infusion pipeline through the pinch valve to avoid blood recovery and air entering.
The automatic control of the infusion process is achieved, which avoids the occurrence of blood recovery and air embolism, ensures the safety and accuracy of the infusion, reduces the waste of medicine, and simplifies the sequential management of multiple bottles of medicine.
Smart Images
Figure CN119185697A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of infusion equipment, and in particular to an infusion tube blocking control device and an infusion system. Background Art
[0002] Intravenous infusion is a method of injecting a large amount of sterile liquid, electrolytes, and drugs into the body through the veins using the principles of atmospheric pressure and liquid static pressure. During intravenous infusion, the drip rate can be adjusted through the infusion device, and the infusion is continuously and stably injected into the veins of the infusion subject to replenish body fluids, electrolytes, or provide nutrients. In the prior art, the medicine to be infused is generally loaded into an infusion container such as an infusion bottle or an infusion bag, and then the infusion container is connected to an infusion pipeline and an infusion needle, so that the medicine in the infusion container is gradually transported to the body of the infusion subject. During the infusion process, an infusion drip rate regulator is usually used to control the infusion speed, and a dropper and a drip bucket are set on the infusion pipeline so that the infusion speed can be manually judged by the drip speed.
[0003] In the actual infusion process, there are still the following problems: 1. During the infusion process, people cannot always pay attention to the remaining liquid in the infusion bottle / infusion bag. If the liquid infusion is completed but the needle is not removed in time, it will cause blood to return or air to enter the infusion object, resulting in air embolism and other safety hazards that endanger the life of the infusion object.
[0004] 2. Before infusion, multiple bottles / bags of liquid medicine may be prepared according to medication and other reasons. There are strict requirements for the infusion order of multiple bottles of liquid medicine. After the current bottle of liquid medicine is infused, it will be replaced with another bottle of liquid medicine. During this period, the nurse needs to replace it in time. On the one hand, if there are multiple bottles of liquid medicine, the nurse may make mistakes in the infusion order during the infusion process (including the wrong order at the beginning of the infusion, and when the number of liquid medicine bottles is greater than or equal to three bottles and the infusion order needs to be determined in the middle, errors may occur during the replacement of liquid medicine), resulting in the treatment effect not meeting expectations and even posing a threat to patient safety; on the other hand, in the process of replacing liquid medicine, it is necessary to replace it in time when the previous bottle of liquid medicine is about to be infused. Nurses are not only facing one patient, and often fail to switch in time. Replacing too early will cause waste of liquid medicine, and replacing too late will pose a threat to patient safety. Therefore, it is necessary to design equipment that can automatically replace liquid medicine. Summary of the invention
[0005] The present invention is intended to provide an infusion tube blocking control device and an infusion system to solve the problem in the prior art that the infusion cannot be automatically, accurately and stably paused or stopped.
[0006] To solve the above problems, the present invention adopts the following technical solution: an infusion tube blocking control device, including an infusion stand and an infusion container and an infusion pipeline connected to the infusion stand, the infusion pipeline is connected with a detection unit and a blocking unit, the detector is used to detect whether there is still medicine liquid in the infusion container, and the blocking unit is used to control the on and off of the infusion pipeline; it also includes a control unit, and the blocking unit and the detection unit are both electrically connected to the control unit.
[0007] The principles and beneficial effects of this solution are as follows: the infusion container is used to contain the liquid medicine to be infused, and may be an infusion bottle, an infusion bag or other container; the infusion pipeline is connected between the infusion container and the infusion object, and the liquid medicine in the infusion container may be transported to the body of the infusion object via the infusion pipeline; the control unit is electrically connected to the components used for detection or control in the infusion device to realize signal reception and complete corresponding control; the detection unit is used to detect whether the liquid medicine in the infusion container has been infused; the blocking unit is connected to the infusion pipeline, and when the blocking unit controls the infusion pipeline to be blocked, the infusion is paused or terminated.
[0008] In the present solution, the detection unit can detect whether the medicine has been completely infused by directly detecting whether there is any medicine remaining in the infusion container. It can also determine whether the medicine in the infusion container has been completely infused by detecting whether there is any medicine in the infusion pipeline. When it is detected that there is no medicine in the infusion container (that is, when the infusion is completed), the detection unit detects a detection signal indicating that the medicine in the infusion container has been completely infused. After receiving the detection signal, the control unit can control the blocking unit to block the infusion pipeline, thereby avoiding the problem of blood backflow or air input into the patient during the infusion process.
[0009] Preferably, as an improvement, the blocking unit is detachably connected to the infusion pipeline, and the detector is detachably connected to the infusion container or the infusion pipeline.
[0010] In this solution, the blocking unit is detachably connected to the infusion pipeline. When needed, the blocking unit can be connected to the infusion pipeline, and the infusion pipeline can be controlled by the blocking unit. The detector can be connected to the infusion container or the infusion pipeline to effectively detect the infusion process. Similarly, after the infusion is completed, the blocking unit can be removed from the infusion pipeline, and the detector can be removed from the infusion container or the infusion pipeline. Then, the blocking unit and the detector can be recycled for the on-off control of other infusion pipelines, realizing recycling, effectively improving the utilization rate of the equipment, and thus reducing costs.
[0011] Preferably, as an improvement, the detection unit includes a detector, which is a photoelectric sensor, an infrared sensor or a liquid level sensor; the blocking unit includes a pinch valve, which is signal-connected to the control unit.
[0012] In this solution, the detector is a photoelectric sensor, an infrared sensor or a liquid level sensor. It can determine whether the liquid medicine in the infusion container has been infused by detecting whether there is still liquid medicine left in the infusion container. For example, a liquid level sensor or a photoelectric sensor is used to detect whether there is still liquid at the connection between the bottom of the infusion container and the infusion pipeline to determine whether the liquid medicine has been infused. If it is detected that there is still liquid, it can be determined that the liquid medicine in the infusion container has not been infused. When it is detected that there is no liquid at the bottom of the infusion container, it can be determined that the liquid medicine in the infusion container has been infused. At the same time, in this solution, it can also be determined whether the liquid medicine in the infusion container has been infused by detecting whether there is liquid in the infusion pipeline. For example, a photoelectric sensor and a liquid level sensor are used to detect whether there is liquid in the infusion pipeline, and it is determined from the side whether there is liquid medicine in the infusion container. Of course, the detector in this solution is a photoelectric sensor, an infrared sensor or a liquid level sensor. In actual application, as long as it is a sensor that can be used to detect whether there is liquid medicine in the infusion container or the infusion pipeline and determine whether the liquid in the infusion container has been infused, it can be classified as a detector in this solution.
[0013] In addition, the blocking unit in the present scheme adopts a clamping valve with a clamping and blocking function. The principle of blocking is to use an extrusion component to apply pressure to the infusion pipeline, so that the infusion pipeline is squeezed to a blocking state under force, so that the part of the infusion pipeline from the clamping valve to the infusion object is in a sealed and blocked state, thereby preventing blood from returning or air columns from being input into the body of the infusion object during the infusion process.
[0014] Preferably, as an improvement, a control box is fixedly connected to the infusion stand, and the blocking unit, the control unit and the detection unit are all located in the control box.
[0015] In this solution, the blocking unit and the detection unit are both arranged in the control box, and the control box is used to protect the blocking unit and the detection unit, so that the structure of the infusion device is more regular, the use is safer, and it is convenient for unified use and management.
[0016] Preferably, as an improvement, the infusion pipeline is connected with at least two branch pipes, each branch pipe is connected with the infusion container, and each branch pipe is connected with the detection unit and the blocking unit.
[0017] In this solution, by connecting at least two branch pipes on the infusion pipeline, each branch pipe is connected to an infusion container. During the infusion process, the corresponding branch pipe can be detected and controlled by the detection unit and the blocking unit. Therefore, in the actual infusion process, for the infusion scenario where multiple bottles / bags of medicine need to be infused successively, the control unit can be used to control the operation of the detection unit and the blocking unit on each branch pipe, so as to detect and effectively control the infusion sequence of multiple infusion containers.
[0018] Specifically, taking three infusion containers as an example, first, each infusion container can be numbered, that is, the detection unit and the blocking unit connected to each infusion container can be numbered, and the detection unit and the blocking unit on each infusion container are a group. For example, the three infusion containers are divided into three groups: A, B, and C. a1 and a2 are the detection unit and the blocking unit in group A, respectively; b1 and b2 are the detection unit and the blocking unit in group B, respectively; c1 and c2 are the detection unit and the blocking unit in group C, respectively. Then, the control unit is used to control the determined numbered infusion sequence. At this time, the control unit can adopt a PLC integrated controller. At the same time, for more convenient control, a display screen can be electrically connected to the control unit. The display screen can be a touch screen and / or a button display screen, so that the controller can set the infusion sequence through the display screen.
[0019] For example, if the order is B, A, and C, then the controller control process is: when group B is infusing, b1 and b2 are turned on at the same time, and a1, a2, c1, and c2 are all turned off. At this time, b1 detects the branch pipes of group B, and the blocking unit of b2 is in the open state, so that group B can infuse smoothly. The blocking units in groups A and C are all closed, so that the branch pipes in groups A and C are blocked and cannot be infused; when group B's infusion is completed and group A starts infusing, a1 and a2 are turned on, and b1, b2, c1, and c2 are all turned off. At this time, the blocking unit in group A does not detect the branch pipes in group A. The branch of group A is blocked, at this time group A can infuse normally, the detection unit in group A detects the branch of group A, and the branches of groups B and C are in a blocked and closed state; when group A completes the infusion, c1 and c2 are turned on, a1, a2, b1 and b2 are all closed, at this time group C can infuse normally, the detection unit in group C detects the branch of group C, and the branches of groups A and B are in a blocked and closed state; and when all infusions are completed, the controller controls c2 to be closed, at this time a2, b2 and c2 are all in a closed state, and all the branches are in a closed state.
[0020] Of course, in the above example, when the blocking unit is turned on under normal conditions, the corresponding branch is in a conducting state, so that the corresponding branch can infuse normally, that is, the blocking unit in the above example is a normally closed blocking unit, and in other examples, a normally open blocking unit can also be selected, but the power-on state of the blocking unit during the infusion control process shows a difference between a blocked or connected state, and the specific situation can be set according to actual needs.
[0021] At the same time, the above example shows the situation of three infusion containers. In the actual infusion process, there may be two infusion containers or four or more. These numbers of infusion containers are also controlled by the controller and the detection unit and blocking unit on the corresponding branch pipe. Moreover, in the above example, for the structure with multiple branch pipes, in addition to being connected to the infusion pipeline through a multi-way valve, the user can connect it before infusion; it can also be directly customized as a structure with multiple branch pipes integrally formed on the infusion pipeline. For example, the infusion pipeline includes two or more branch pipes, and the user does not need to manually connect them before infusion, which improves the connection stability and reduces the occurrence of leakage.
[0022] Preferably, as an improvement, the blocking unit includes a blocking driver, a positioning seat and a rotating seat connected to the blocking driver, the positioning seat is provided with a matching hole, the rotating seat and the matching hole are rotatably matched, and a blocking gap for clamping and blocking the infusion pipeline is provided between the outer wall of the rotating seat and the inner wall of the matching hole; the positioning seat is provided with an external connecting groove for the infusion pipeline to pass through, and the rotating seat is provided with an internal connecting groove for the infusion pipeline to pass through.
[0023] In the present scheme, when the rotating seat rotates relative to the positioning seat under the driving action of the blocking driver, the outer connecting groove and the inner connecting groove can be rotated to the same straight line first, so that the outer connecting groove and the inner connecting groove form a straight-line accommodating groove, which can accommodate the infusion pipeline. At this time, the infusion pipeline can be conveniently pressed into the accommodating groove; then the blocking driver is used to drive the rotating seat to rotate, so that the infusion pipeline located at the end position of the inner connecting groove curls into the blocking gap, and as the rotating seat continues to rotate, the infusion pipeline is finally blocked in the blocking gap by clamping, thereby blocking the infusion pipeline. When blocking is no longer needed, the blocking driver only needs to be used to drive the rotating seat to rotate in the opposite direction, so that the infusion pipeline blocked in the blocking gap can automatically withdraw from the blocking gap, and the infusion pipeline can be connected again and continue infusion, or the entire infusion pipeline can be conveniently removed from the blocking unit after the infusion is completed.
[0024] Preferably, as an improvement, the blocking gap gradually decreases in width from the position where the external connection groove communicates with the matching hole toward the direction in which the rotating seat rotates to block the infusion pipeline.
[0025] In the present scheme, when setting the blocking gap, when the external connecting groove and the matching hole are in the communicating position, the width of the blocking gap is the largest, and the width of the blocking gap gradually decreases along the direction in which the rotating seat rotates to block the infusion pipeline, and in order to ensure the sufficiency and stability of the blocking, the minimum width of the blocking gap is less than the sum of the minimum thicknesses of the infusion pipeline squeezed after being folded in half. Therefore, in the process of the rotating seat rotating to block the infusion pipeline, the infusion pipeline first enters the blocking gap from the position with the maximum width of the blocking gap, and then as the rotating seat rotates, the width value of the blocking gap becomes smaller and smaller, and the squeezing effect of the blocking gap on the infusion pipeline becomes greater and greater, until the infusion pipeline is completely tightly blocked, and the blocking operation of the infusion pipeline can be completed stably and effectively.
[0026] At the same time, in the present scheme, since the width of the blocking gap is set to be variable, when the blocking is released, as the direction of the rotating seat rotates, the infusion pipeline is gradually released from the blocking gap. Since the width of the blocking gap becomes wider and wider during the releasing process, the infusion pipeline can be more easily loosened from the blocking gap during the releasing process of the infusion pipeline. Compared with the equal-width setting of the blocking gap, the loosening process of the infusion pipeline in the present scheme is more convenient and stable, and can effectively avoid the situation where the rotating seat rotates while the infusion pipeline is still blocked in the blocking gap, effectively improving the stability of the blocking effect of the blocking unit and reducing the damage to the infusion pipeline during the blocking process.
[0027] Preferably, as an improvement, a temporary storage unit is connected to the blocking driver, and a temporary storage groove for temporarily storing the infusion pipeline is formed between the temporary storage unit and the positioning seat, and the temporary storage groove is located between the infusion container and the rotating seat. When the blocking driver drives the rotating seat to rotate relative to the positioning seat so that the infusion pipeline is clamped and blocked to the blocking gap, the blocking driver drives the temporary storage unit to move relative to the positioning seat so that the infusion pipeline temporarily stored in the temporary storage groove is released into the blocking gap.
[0028] During the process of blocking the infusion line by the rotation of the rotating seat, when the blocking driver drives the rotating seat to rotate (for example, forward rotation) and the infusion line in the accommodating groove is curled to the blocking gap and blocked, the partial length of the infusion line outside the accommodating groove will be rolled into the blocking gap, thereby causing the infusion line between the rotating seat and the infusion bottle to be partially rolled up, causing the infusion line between the rotating seat and the infusion container to be pulled and shortened toward the rotating seat. If the infusion line within the position range between the rotating seat and the infusion container is in a tensioned state at this time, the head end of the infusion line will be easily pulled out of the infusion container during the rotation of the rotating seat. If infusion is still needed later (for example, the rotation of the rotating seat is only to suspend the infusion at this time), the medicine in the infusion container will not be able to smoothly enter the infusion line and complete the normal infusion.
[0029] In the present solution, a temporary storage unit is provided, a temporary storage groove is provided between the temporary storage unit and the positioning seat, and the temporary storage groove is located between the rotating seat and the infusion container. During use, when a certain length of the infusion pipeline is pressed into the accommodating groove, part of the length of the infusion pipeline is also pressed into the temporary storage groove for temporary storage; and when the rotating seat rotates and the infusion pipeline is partially curled to the blocking gap to block the infusion pipeline, the blocking driver simultaneously drives the temporary storage unit to move relative to the positioning seat, so that the infusion pipeline of a certain length temporarily stored in the temporary storage groove is released, and the released infusion pipeline length is used to supplement the length of the infusion pipeline rolled into the blocking gap, thereby avoiding the infusion pipeline located between the rotating seat and the infusion container from being pulled, reducing the occurrence of the infusion pipeline and the infusion container falling off, and improving the stability during the infusion process.
[0030] In addition, when the infusion pipeline rolled up in the blocking gap is unblocked, in the present solution, since a temporary storage groove is provided, when the blocking driver drives the rotating seat to rotate (for example, reverse rotation) to rotate the rotating seat, the infusion pipeline rolled up in the blocking gap gradually withdraws from the blocking gap as the rotating seat rotates, the blocking driver will synchronously drive the temporary storage unit to move in the opposite direction relative to the positioning seat, so that the temporary storage unit can re-store the infusion pipeline into the temporary storage groove for temporary storage. In this process, the temporary storage unit can play an auxiliary pulling role on the infusion pipeline, so that the infusion pipeline released due to the unblocking in the blocking gap is pulled out of the blocking gap, thereby reducing the situation where the infusion pipeline cannot withdraw and reset from the blocking gap, and further improving the stability and accuracy of the control device's control over the blocking of the infusion pipeline.
[0031] Preferably, as an improvement, the temporary storage unit includes a driving gear, a driven gear and an eccentric seat, the driven gear is fixedly connected to the eccentric seat, the driving gear is fixedly connected to the blocking driver, and the driving gear is meshed with the driven gear.
[0032] In this solution, the structure of the meshing of the driving gear and the driven gear is utilized so that the eccentric seat can be driven to rotate when the blocking driver rotates, thereby releasing or retracting the infusion line in the receiving groove. The overall structure is simple and the infusion line release and retraction process is very stable and smooth.
[0033] An infusion system comprises the infusion tube blocking control device.
[0034] In this solution, an infusion tube blocking control device is provided in the infusion system, which can automatically detect whether the infusion is completed, thereby accurately controlling the infusion process, making the infusion process safer and more controllable. BRIEF DESCRIPTION OF THE DRAWINGS
[0035] Figure 1 Schematic diagram of the infusion pipeline in Example 1 of the present invention.
[0036] Figure 2 It is a schematic diagram of Embodiment 1 of the present invention.
[0037] Figure 3 This is a schematic diagram of Embodiment 2 of the present invention.
[0038] Figure 4 It is a schematic diagram of the connection between the control box, the blocking unit and the detection unit in the third embodiment of the present invention.
[0039] Figure 5 It is a schematic diagram of the connection between the rotating seat and the steering gear in the third embodiment of the present invention.
[0040] Figure 6 It is a front view of the local connection position of the control box, the blocking unit and the detection unit in the third embodiment of the present invention.
[0041] Figure 7 It is a cross-sectional view of the containing groove in the third embodiment of the present invention.
[0042] Figure 8 It is a front view of a blocking gap with a gradually increasing width formed by the rotating seat and the positioning seat in the fourth embodiment of the present invention along the rotating direction of the arrow.
[0043] Fig. 9 It is a front view of the local connection position of the control box, the blocking unit, the detection unit and the temporary storage unit in the fifth embodiment of the present invention.
[0044] Fig.10 It is a schematic diagram of the connection between the steering gear and the temporary storage unit of the present invention. DETAILED DESCRIPTION
[0045] The following is further described in detail through specific implementation methods: The figure marks in the drawings of the specification include: infusion bottle 1, infusion tube 2, bottle stopper protective cover 3, bottle stopper piercer 4, air filter 5, dropper 6, drip bucket 7, liquid medicine filter 8, flow regulator 9, injection piece 10, outer conical joint 11, outer conical joint protective cover 12, infusion needle 13, detector 14, left detector 1401, right detector 1402, clamp valve 15, left clamp valve 1501, right clamp valve 1502, single-chip microcomputer 16, control box 17, infusion stand 18, branch pipe 19, buzzer 20, positioning seat 21, external connecting groove 2101, rotating seat 22, internal connecting groove 2201, servo engine 23, blocking gap 24, accommodating groove 25, temporary storage groove 26, driving gear 27, driven gear 28, eccentric seat 29.
[0046] Embodiment 1 This embodiment is as shown in the attached Figure 1 and Figure 2As shown: an infusion tube blocking control device, comprising an infusion container and an infusion pipeline connected to the infusion container, wherein the infusion container is an infusion bottle 1, an infusion bag or other container for containing a liquid to be infused, such as Figure 1 As shown, the infusion container in this embodiment is an infusion bottle 1, combined with Figure 2 The infusion pipeline includes an infusion tube 2, a bottle stopper protective cover 3, a bottle stopper piercer 4, an air filter 5, a dropper 6, a drip bucket 7, a drug liquid filter 8, a flow regulator 9, an injection piece 10, an outer conical joint 11, an outer conical joint protective cover 12, an infusion needle 13, etc. The bottle stopper piercer 4 is connected to the head end of the infusion tube 2, the infusion needle 13 is connected to the tail end of the infusion tube 2, and the air filter 5, the dropper 6, the drip bucket 7, the drug liquid filter 8, the flow regulator 9, the injection piece 10, the outer conical joint 11, the outer conical joint protective cover 12 and the infusion needle 13 are all connected to the infusion tube 2. When in use, remove the bottle stopper protective cover 3 and insert it into the infusion bottle 1, then adjust the flow regulator 9 to put the infusion tube 2 in a circulation state. After the liquid medicine in the infusion bottle 1 flows through the infusion tube 2 to the infusion needle 13, there is no air column or bubble in other positions of the infusion tube 2 except the dropper 6 part. Then adjust the flow regulator 9 to temporarily block the infusion tube 2. After the medical staff inserts the infusion needle 13 into the patient's blood vessel, the infusion operation can be performed.
[0047] Combination Figure 1 and Figure 2 , the infusion tube 2 is connected with a detection unit and a blocking unit. The detection unit is a detector 14. The detector 14 is used to detect whether there is still liquid medicine in the infusion bottle 1. The detector 14 in this embodiment is a photoelectric sensor, an infrared sensor or a liquid level sensor. For example, an infusion reminder with a product model of EKC-SYBB1 and a brand of Yikangchen can be used. When in use, just clamp the infusion reminder to the infusion tube 2, and then turn on the infusion reminder to automatically detect whether there is liquid medicine in the infusion tube 2. When the liquid medicine in the infusion container is infused, when the interface between the liquid medicine and the air flows through the infusion reminder, the infusion reminder detects the liquid surface flow information and automatically alarms.
[0048] In this embodiment, the detector 14 is detachably connected to the infusion tube 2 and is located between the infusion bottle 1 and the drip chamber 7. When the infusion bottle 1 is finished, the air in the infusion bottle 1 enters the infusion tube 2 and flows along the infusion tube 2. When the interface between the liquid medicine and the air flows through the detector 14, the detector 14 will generate a detection signal, indicating that the liquid medicine in the infusion bottle 1 has been finished. In addition, the blocking unit is connected to the infusion tube 2 and is used to control the on and off of the infusion tube 2. The blocking unit in this embodiment is a clamping valve 15 detachably connected to the infusion tube 2. When the clamping valve 15 is powered on, the clamping valve 15 will not block the infusion tube 2. When the clamping valve 15 is powered off, the clamping valve 15 clamps and blocks the infusion tube 2 to stop the infusion.
[0049] The present embodiment also includes a control unit, which is a single chip microcomputer 16, and the detector 14 and the pinch valve 15 are both electrically connected to the single chip microcomputer 16. Specifically, a control box 17 and an infusion stand 18 are also provided, the control box 17 is fixedly connected to the infusion stand 18 near the middle by screws, the single chip microcomputer 16 is fixedly connected to the control box 17 by screws, and the detector 14 and the pinch valve 15 are both connected by a signal line, so that the single chip microcomputer 16 can receive the signal of the single chip microcomputer 16 and control the pinch valve 15 to block the infusion tube 2.
[0050] In the present embodiment, during the infusion process, if the liquid medicine in the infusion bottle 1 is completely infused, the air in the infusion bottle 1 enters the infusion tube 2. When the interface between the liquid medicine and the air passes through the detector 14, the detector 14 detects the change of the liquid medicine in the infusion tube 2 and generates a detection signal. Then the detector 14 transmits the detection signal to the single-chip microcomputer 16. After receiving the detection signal, the single-chip microcomputer 16 generates a control signal, and uses the control signal to control the clamp valve 15 to cut off the power. After the clamp valve 15 cuts off the power, the infusion tube 2 is clamped to stop the infusion, thereby realizing automatic detection and control of the infusion, avoiding air from being inadvertently infused into the infusion subject, and preventing the life safety of the infusion subject from being endangered.
[0051] Embodiment 2 The difference between the second embodiment and the first embodiment is that: Figure 3 As shown, in this embodiment, the number of infusion bottles 1 is two or more. When the number of infusion bottles 1 is two, two infusion devices share one infusion tube 2. Specifically, the pipeline of the infusion tube 2 located above the drip bucket 7 is divided into two infusion tubes 2 with branch pipes 19. The top ends of the two branch pipes 19 are connected to bottle plug piercers 4. When in use, the two bottle plug piercers 4 are respectively inserted into the two infusion bottles 1, and a detector 14 and a clamping valve 15 are connected to each branch pipe 19. In addition, a detector 14 is connected to the position of the drip bucket 7, and a clamping valve 15 is connected to the position between the drip bucket 7 and the infusion needle 13 on the infusion tube 2. At the same time, an alarm electrically connected to the single-chip microcomputer can be installed on the control box 17. When the infusion is completed or an abnormality occurs, the alarm function is realized by using the alarm, and the alarm can be a buzzer 20.
[0052] The top of the infusion tube 2 in this embodiment includes two branch pipes 19. In other embodiments other than this embodiment, a three-way structure can be connected to the head end of the infusion tube 2, and then the three-way joint can be connected to the two infusion bottles 1 by using the branch pipe 19, so that the connection between the two infusion bottles 1 and the infusion tube 2 can be realized. In other embodiments other than this embodiment, the number of infusion bottles 1 can be three, and when three infusion bottles 1 are used and the three infusion bottles 1 share one infusion tube 2, the pipeline of the infusion tube 2 above the drip bucket 7 can be divided into three branch pipes 19, and the detector 14 and the clamp valve 15 are connected to the three branch pipes 19, and each branch pipe 19 is detected and controlled.
[0053] In this embodiment, when two infusion bottles 1 are provided, the order of the two infusion bottles 1 needs to be controlled, and the control process is realized by the control of the single chip microcomputer 16. During the infusion process, for example, the single chip microcomputer 16 can be used to control Figure 5 The left infusion bottle 1 is infused first, and when the left infusion bottle 1 is finished, the right infusion bottle 1 is controlled to infuse. Specifically, for the convenience of description, the detector 14 and the pinch valve 15 on the left branch pipe 19 are respectively the left detector 1401 and the left pinch valve 1501, and the detector 14 and the pinch valve 15 on the right branch pipe 19 are respectively the right detector 1402 and the right pinch valve 1502.
[0054] When the left infusion bottle 1 is infused, the single-chip microcomputer 16 controls the left detector 1401 and the left clamping valve 1501 to open, and the right detector 1402 and the right clamping valve 1502 to close, so that the left branch pipe 19 is in a connected state and the right branch pipe 19 is in a blocked state. When the left infusion bottle 1 is infused, the left detector 1401 detects the completion of the infusion and generates a detection signal. After detecting the detection signal of the left detector 1401, the single-chip microcomputer 16 controls the left detector 1401 and the left clamping valve 1501 to close at the same time, and controls the right detector 1402 and the right clamping valve 1502 to open. At this time, the liquid in the right infusion bottle 1 is infused into the body of the infusion object through the infusion tube 2.
[0055] When the right infusion bottle 1 has finished infusing the medicine, the right detector 1402 detects and generates a detection signal. The microcontroller 16 receives the detection signal of the right detector 1402, and the right detector 1402 and the right clamp valve 1502 are closed. At this time, the left detector 1401 and the left clamp valve 1501 are also in a closed state, and the infusion is completed.
[0056] Embodiment 3 The difference between the third embodiment and the second embodiment is that the blocking unit structure in this embodiment is different from that in the second embodiment. Figure 4 and Figure 5The blocking unit in this embodiment includes a blocking driver, a positioning seat 21 and a rotating seat 22 connected to the blocking driver. The blocking driver is an electric motor, specifically a steering gear 23. The steering gear 23 is electrically connected to the control unit. The steering gear 23 has a simple structure and is easy to operate. The steering gear 23 and the detector 14 are fixedly connected to the control box 17 by screws, and the rotating seat 22 is fixedly connected to the output shaft of the steering gear 23; the positioning seat 21 is integrally formed on the outer wall of the control box 17, and a matching hole penetrating the positioning seat 21 is opened in the middle of the positioning seat 21. A through hole with the same diameter and coaxial arrangement as the matching hole is opened on the control box 17. After the rotating seat 22 passes through the through hole, it rotates and cooperates with the matching hole. A blocking gap 24 for clamping and blocking the infusion tube 2 is provided between the outer wall of the rotating seat 22 and the inner wall of the matching hole. In this embodiment, the number of blocking units is two, which play a blocking role on the two branch pipes at the same time, so that a blocking control role can be played during the switching process of the two infusion bottles 1. No further details are given here. Of course, in this embodiment, only one of the blocking units may be used, so as to play the blocking control role in the case of one infusion bottle 1 as in the first embodiment.
[0057] Combination Figure 4 and Figure 6 The top surface of the positioning seat 21 is provided with an outer connecting groove 2101 for the infusion tube 2 to pass through, and the top surface of the rotating seat 22 is provided with an inner connecting groove 2201 for the infusion tube 2 to pass through. When the rotating seat 22 rotates to make the inner connecting groove 2201 face the outer connecting groove 2101, the inner connecting groove 2201 and the outer connecting groove 2101 are connected to form a straight line for clamping the receiving groove 25 of the branch pipe 19. Figure 7 In this embodiment, the longitudinal section of the receiving groove 25 is set to be a three-quarter circle shape, and its opening width is smaller than the diameter of the branch pipe 19. When the branch pipe 19 is pressed into the receiving groove 25, the receiving groove 25 can limit the branch pipe 19, so that the branch pipe 19 cannot be easily loosened after being clamped into the receiving groove 25.
[0058] Taking the operation of one of the blocking units as an example, in this embodiment, when the liquid medicine in the infusion bottle 1 is finished, the detector 14 detects the change of the liquid medicine in the branch pipe 19 and generates a detection signal, and then the detector 14 transmits the detection signal to the single-chip microcomputer 16. After receiving the detection signal, the single-chip microcomputer 16 generates a control signal and transmits the control signal to the steering gear 23. The steering gear 23 drives the rotating seat 22 to rotate. When the rotating seat 22 rotates, it will drive the branch pipe 19 located in the inner connecting groove 2201 to rotate, so that it is rolled into the blocking gap 24, so that the branch pipe 19 is completely blocked and cannot continue to be infused, thereby achieving the blocking of the branch pipe 19. When the liquid medicine in one bottle of infusion bottle 1 is finished and another bottle is switched, the rotation of the steering gear 23 in the blocking unit can be controlled accordingly according to the control method in the second embodiment, and the specific control process will not be described in detail here.
[0059] When the infusion is no longer suspended or the infusion is completed, the single chip microcomputer 16 controls the steering gear 23 to rotate in the reverse direction to Figure 6 state, so that the branch pipe 19 in the blocking gap 24 can be pulled outward and withdraw from the blocking gap 24, so that the branch pipe 19 is in a smooth state again, and the branch pipe 19 can be taken out of the accommodating groove 25 at this time.
[0060] Embodiment 4 The difference between the fourth embodiment and the third embodiment is that: Figure 8 As shown, the blocking gap 24 gradually decreases in width from the position where the outer connection groove 2101 is connected to the matching hole to the direction in which the rotating seat 22 rotates to block the infusion pipeline, and the minimum width of the blocking gap 24 is less than the sum of the minimum thickness of the infusion pipeline after being folded in half. When the steering gear 23 rotates to curl the branch pipe 19 into the blocking gap 24, the width of the blocking gap 24 becomes smaller and smaller during the curling process, so that the branch pipe 19 is gradually and slowly squeezed and blocked during the curling process due to the smaller width of the blocking gap 24, and the branch pipe 19 is more At the same time, when the branch pipe 19 is no longer needed to be blocked, the servo 23 rotates in the opposite direction, and the branch pipe 19 in the blocking gap 24 gradually withdraws from the blocking gap 24. Since the blocking gap 24 gradually increases during the withdrawal process, the branch pipe 19 can withdraw more easily and smoothly during the withdrawal process, effectively reducing the situation where the branch pipe 19 is stuck in the blocking gap 24 and cannot smoothly withdraw from the blocking gap 24, thereby improving the stability and smoothness of the entire infusion device during use.
[0061] Embodiment 5 The difference between the fifth embodiment and the fourth embodiment is that: Fig. 9 As shown, in this embodiment, a temporary storage unit is connected to the steering gear 23, and a temporary storage groove 26 for temporarily storing the branch pipe 19 is formed between the temporary storage unit and the positioning seat 21. The temporary storage groove 26 is located between the infusion bottle 1 and the rotating seat 22. When the steering gear 23 drives the rotating seat 22 to rotate relative to the positioning seat 21 so that the branch pipe 19 is blocked to the blocking gap 24, the steering gear 23 drives the temporary storage unit to move relative to the positioning seat 21 so that the branch pipe 19 temporarily stored in the temporary storage groove 26 is released into the blocking gap 24. Fig.10 Specifically, the temporary storage unit in this embodiment includes a driving gear 27, a driven gear 28 and an eccentric seat 29, wherein the eccentric seat 29 is rotatably connected to the control box 17 through a pin shaft, the driven gear 28 is fixedly connected to the eccentric seat 29 through screws, the driving gear 27 is fixedly connected to the output shaft of the servo 23 through screws, and the driving gear 27 is meshed with the driven gear 28.
[0062] In this embodiment, taking one of the blocking units as an example, when the branch pipe 19 is in an unobstructed state, the external connecting groove 2101 and the internal connecting groove 2201 are on the same straight line to form a receiving groove 25, a certain length range on the branch pipe 19 is located in the receiving groove 25, and at this time the receiving groove 25 can temporarily store and accommodate the branch pipe 19. When the servo 23 drives the rotating seat 22 to rotate and partially curls the branch tube 19 into the blocking gap 24, although the branch tube 19 is partially rolled into the blocking gap 24 and a certain length of the branch tube 19 will be stored in the direction of the rotating seat 22 when blocked, the servo 23 will also drive the driving gear 27 to rotate when it rotates, and the driving gear 27 in turn drives the driven gear 28 and the eccentric seat 29 to rotate, thereby releasing a certain length of the branch tube 19 temporarily stored in the temporary storage groove 26, and using the released length of the branch tube 19 to compensate for the length of the branch tube 19 rolled into the blocking gap 24, thereby preventing the branch tube 19 from being pulled toward the rotating seat 22 during the blocking process, and preventing the bottle stopper 4 connected to the top of the branch tube 19 from being pulled out of the infusion bottle 1, thereby improving the stability during the infusion process.
[0063] The above is only an embodiment of the present invention, and the common knowledge such as the known specific technical solutions and / or characteristics in the solution is not described in detail here. It should be pointed out that for those skilled in the art, without departing from the technical solution of the present invention, several modifications and improvements can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicality of the patent. The scope of protection required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.
Claims
1. An infusion tube blocking control device, comprising an infusion stand and an infusion container and an infusion pipeline connected to the infusion stand, characterized in that: The infusion pipeline is connected with a detection unit and a blocking unit. The detector is used to detect whether there is still liquid medicine in the infusion container, and the blocking unit is used to control the on and off of the infusion pipeline. It also includes a control unit, and the blocking unit and the detection unit are both electrically connected to the control unit.
2. The infusion tube blocking control device according to claim 1, characterized in that: The blocking unit is detachably connected to the infusion pipeline, and the detector is detachably connected to the infusion container or the infusion pipeline.
3. The infusion tube blocking control device according to claim 2, characterized in that: The detection unit includes a detector, which is a photoelectric sensor, an infrared sensor or a liquid level sensor; the blocking unit includes a pinch valve, which is connected to the control unit by signal.
4. The infusion tube blocking control device according to claim 2, characterized in that: A control box is fixedly connected to the infusion stand, and the blocking unit, the control unit and the detection unit are all located in the control box.
5. The infusion tube blocking control device according to claim 1, characterized in that: The infusion pipeline is connected with at least two branch pipes, each branch pipe is connected with the infusion container, and each branch pipe is connected with the detection unit and the blocking unit.
6. The infusion tube blocking control device according to claim 2, characterized in that: The blocking unit includes a blocking driver, a positioning seat and a rotating seat connected to the blocking driver. The positioning seat is provided with a matching hole, and the rotating seat is rotatably matched with the matching hole. A blocking gap for clamping and blocking the infusion pipeline is provided between the outer wall of the rotating seat and the inner wall of the matching hole; the positioning seat is provided with an external connecting groove for the infusion pipeline to pass through, and the rotating seat is provided with an internal connecting groove for the infusion pipeline to pass through.
7. The infusion tube blocking control device according to claim 6, characterized in that: The blocking gap gradually decreases in width from the position where the external connection groove communicates with the matching hole toward the direction in which the rotating seat rotates to block the infusion pipeline.
8. The infusion tube blocking control device according to claim 7, characterized in that: The blocking driver is connected to a temporary storage unit, and a temporary storage groove for temporarily storing the infusion pipeline is formed between the temporary storage unit and the positioning seat. The temporary storage groove is located between the infusion container and the rotating seat. When the blocking driver drives the rotating seat to rotate relative to the positioning seat so that the infusion pipeline is clamped and blocked to the blocking gap, the blocking driver drives the temporary storage unit to move relative to the positioning seat so that the infusion pipeline temporarily stored in the temporary storage groove is released into the blocking gap.
9. The infusion tube blocking control device according to claim 8, characterized in that: The temporary storage unit comprises a driving gear, a driven gear and an eccentric seat, the driven gear is fixedly connected to the eccentric seat, the driving gear is fixedly connected to the blocking driver, and the driving gear is meshed with the driven gear.
10. An infusion system, characterized in that: It comprises an infusion tube blocking control device as described in any one of claims 1-9.