Infusion device capable of automatically replacing infusion bottle

Abstract

The invention discloses an automatic infusion bottle replacing device capable of simulating manpower, relates to the technical field of medical automation, and aims to solve the problems of low efficiency, complex operation and potential infection risk of traditional manual infusion bottle replacement. The device comprises an infusion bottle fixing unit, an infusion bottle monitoring unit and an execution unit. The infusion bottle fixing unit adopts a barb structure and a semi-cylinder structure, so that an infusion bottle can be stably fixed in a semi-cylinder, and a series of subsequent actions can be smoothly carried out; the infusion bottle monitoring unit is used for monitoring the level of liquid in an infusion bottle in real time by adopting a non-contact sensing technology so as to ensure timely replacement; according to the execution unit, a stepping motor, a water level detection module and an electric telescopic rod coordinate with one another to complete replacement of the infusion bottle. The device improves the medical efficiency through automatic operation, reduces the burden of medical staff, reduces the risk of cross infection, is suitable for medical scenes such as hospitals and clinics, and provides safer and more efficient infusion services for patients.

Description

Technical Field

[0001] The invention relates to the technical field of medical equipment, in particular to an infusion device for automatically replacing a hanging bottle. Background Art

[0002] Intravenous infusion is a common treatment method and is frequently used in major hospitals or health clinics.

[0003] During infusion, most patients need to receive multiple bottles of medicine continuously. In the routine infusion process, patients need to pay attention to the amount of medicine in the infusion bottle. When the liquid in the infusion bottle is less, the nurse will replace it with a new one. If the patient forgets to pay attention to the amount of medicine, the medicine may be exhausted and the blood may flow back through the infusion needle, which is harmful to the patient's health. When there are many patients receiving infusion, nurses have to replace infusion bottles for many patients, which increases the workload sharply and is prone to errors. The small number of medical staff and the large number of infusion bottles to be replaced are the main reasons for infusion safety accidents. It can be seen that the traditional way of changing infusion bottles increases the workload of nurses and also leads to heavy treatment and nursing work.

[0004] In order to solve the above problems, patent application number CN202223280797.4 proposes an infusion device for automatically replacing hanging bottles, which includes: a base, a supporting telescopic rod, a turntable, a rectangular through hole, a first mounting plate, a nut slider, a bidirectional threaded rod, a rectangular plate, a stopper, a first rectangular frame, a first clamping block, a spring, an infusion bottle, a round plate, a motor, a cross rod, a plug, a second mounting plate, a round hole, a liquid pipe, an electric push rod, a second rectangular frame, a second clamping block, a positioning bolt, a notch, a support plate, etc. However, the device has a complex structure and is heavy, which is not conducive to mass production and movement by medical staff, and has many parts and a high cost. Summary of the invention

[0005] Purpose of the invention: The embodiment of the present invention provides an infusion device for automatically replacing hanging bottles, so as to overcome the problem that medical staff need to move back and forth frequently to replace hanging bottles, which results in heavy workload and insufficient personnel. The present invention also solves a series of problems of previous ejection devices, adopts a special barbed structure and semi-cylindrical structure, improves the efficiency of medical staff in placing hanging bottles, and also reduces the cost investment, which is conducive to mass production.

[0006] In order to achieve the above object, the embodiment of the present invention is implemented as follows:

[0007] The embodiment of the present invention provides a method for automatically replacing a hanging bottle, which is applied to an infusion device for automatically replacing a hanging bottle, and the device includes: a main load-bearing rod 1, a base 2, a turntable 3, a barb structure 4, a semi-cylindrical structure 5, a water level detection module 6, a short straight rod 7, an electric telescopic rod 8, a stepper motor 9, a stepper motor controller 10 (not marked), and a reducer 11 (not marked); the stepper motor controller 10 (not marked) and the reducer 11 (not marked) are arranged on the stepper motor 9, the upper part of the electric telescopic rod is surrounded by a rectangular shell and connected to the main load-bearing rod 1, and the water level detection module 6 is placed horizontally on the side of the rectangular shell close to the hanging bottle, which is conducive to the precise control of the water level in the hanging bottle; the end of the electric telescopic rod 8 equipped with the telescopic rod is placed downward, which is conducive to the extraction and insertion of the needle tube; the barb structure 4 is inside the turntable 3 and is connected to the semi-cylindrical structure 5 directly below, which is conducive to the fixing of the hanging bottle. The stepper motor is placed inside the upper end of the main load-bearing rod and directly below the turntable, which is conducive to driving the rotation of the turntable. The stepper motor is a 28BY5-48 stepper motor with a step angle of 5.623°. It is connected to an electric telescopic rod and is used to replace hanging bottles. When the controller of the motor in the present invention receives the signal from the electric telescopic rod, it starts to output a pulse signal, which is transmitted to the motor through the stepper motor driver. Since the stepper motor in the present invention rotates 45" each time, the controller outputs 8 pulses each time. In addition, the rotation direction of the stepper motor is always clockwise. The electric telescopic rod is connected to the water level detection module and the stepper motor respectively. When the signal from the water level detection module is received, the electric telescopic rod is used to pull the needle out of the old hanging bottle; and when the stepper motor rotates 45° and sends a signal to the electric telescopic rod, the telescopic rod of the electric telescopic rod contracts to insert the needle into the new hanging bottle. The control system of the electric telescopic rod includes the settings of the telescopic speed and the telescopic distance. Since the time for replacing the hanging bottle needs to be controlled in a short time, and because the rubber at the front end of the hanging bottle The leather seal has high elasticity, so the speed should not be too high, so the PID algorithm is used to give the electric telescopic rod a speed that conforms to the actual situation; as for the telescopic distance, as we know from the previous article, the replacement of the hanging bottle needs to be controlled in a short time, so the telescopic distance cannot be too large on one hand, and it also needs to be greater than the length of the needle tube, so we use the PID algorithm to control the telescopic distance to 5-6cm or so. Its control structure also includes a motor and a reducer. In order to achieve precise control of the motor, the motor uses the FOC algorithm and is connected to the reducer to provide power for the telescopic movement of the telescopic rod; the reducer is connected to the motor, and the high-speed rotation of the motor is converted into a low-speed and high-torque rotation through the internal gear or worm gear mechanism, so that the motor with a smaller size can also generate enough power to drive the telescopic movement of the telescopic rod.The method comprises: firstly, medical staff put the IV bottles needed by the patient into a turntable in order, wherein the turntable is provided with 8 symmetrical circular through holes, and each through hole is provided with a barb structure, and a semi-cylindrical structure is connected directly below the through hole, and its lower surface can rotate 360 ​​degrees around a point, which is conducive to taking out the used IV bottles, and the barb structure and the semi-cylindrical structure work together to fix the IV bottles, and then the needle tube is connected to the short straight rod and inserted into the first IV bottle, and after the device is turned on, when the medicine in each IV bottle is used up, the water level detection module generates a high potential and generates a signal to be transmitted to the electric telescopic rod at the same time, and the electric telescopic rod immediately extends the telescopic rod after receiving the signal, and pulls out the needle tube from the used IV bottle together with the short straight rod, and transmits the signal to the stepping motor after the action is completed, and the controller of the stepping motor outputs 8 pulses after receiving the signal, so that the turntable rotates 45 degrees clockwise, and after the action is completed, the last signal is transmitted to the electric telescopic rod, and the telescopic rod of the electric telescopic rod completes the final collection action and inserts the needle tube into the next IV bottle. The above series of actions are repeated until the IV bottle is used up, so the device successfully realizes the automatic replacement of the IV bottle.

[0008] Beneficial effects of the present invention:

[0009] 1. In terms of structure, compared with the prior art, the present invention innovatively uses a water level detection module, an electric telescopic rod, and a stepper motor to obtain more information to facilitate the rapid and accurate replacement of the hanging bottle. The water level detection module is installed on the upper left of the electric telescopic rod, which can accurately identify whether the water level of the medicine in the hanging bottle has reached the page where the hanging bottle needs to be replaced. It can not only achieve timely replacement of the hanging bottle, but also maximize the efficiency of using the medicine. In addition, the modularization of the structural design can simplify the production and maintenance process, and standardization is conducive to rapid deployment and integration into existing medical facilities.

[0010] 2. In terms of method, the present invention uses an automated control method, and the device can complete a series of complex actions such as replacing the hanging bottle without human intervention, which significantly reduces the workload of medical staff and improves the efficiency of replacing the hanging bottle. The present invention also adopts advanced control algorithms and sensor technology, and the device can realize accurate detection of the remaining liquid amount in the infusion bottle and fine control of the infusion speed, ensuring the accuracy and reliability of the infusion process.

[0011] 3. In terms of structure, the present invention adopts a special barb structure and a semi-cylindrical structure for fixing the hanging bottle, which improves the existing threaded rod and clamping plate structure for fixing the hanging bottle;

[0012] 4. In terms of the device, this device does not have a complex structure. It is mainly controlled by a water level detection module, an electric telescopic rod and a stepper motor, making the device as a whole lighter than the existing technology. In addition, wheels are installed under the chassis to facilitate the movement of the device by medical staff.

[0013] 5. In terms of cost, the device does not have many complex parts, has low cost, and is conducive to mass production.

[0014] In summary, the present invention constructs an infusion device for automatically replacing a hanging bottle, which can ensure that the next hanging bottle can be automatically and orderly replaced without the supervision of medical staff. The water level detection module, electric telescopic rod and stepper motor used in the present invention can accurately control the water level in the hanging bottle and replace the hanging bottle in time. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a hanging bottle fixing structure of a hanging bottle automatic replacement device simulating manual operation;

[0016] Figure 2 It is the main control structure of an automatic replacement device for hanging bottles simulating manual operation;

[0017] Figure 3 The invention discloses the general structure and load-bearing structure of an automatic replacement device for hanging bottles that simulates manual work.

[0018] In the figure, 1-main load-bearing rod, 2-base, 3-turntable, 4-barb structure, 5-semi-cylindrical structure, 6-water level detection module, 7-short straight rod, 8-electric telescopic rod, 9-stepping motor. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] Please see the attached abstract Figure 1 , an infusion device for automatically replacing hanging bottles, including a main load-bearing rod fixedly connected to a base and a turntable rotatably connected to the upper end of the main load-bearing rod, the turntable is provided with 8 symmetrical circular through holes, and the 8 circular through holes are distributed on the turntable in a circular array along the rotation direction of the turntable, each circular through hole is provided with a barb structure, and a semi-cylindrical structure is installed directly below each through hole, and the lower surface of the semi-cylindrical structure can rotate 360° around a certain point, so that medical staff can take out the used hanging bottles conveniently, and a small hole is also provided in the center of the lower surface of the semi-cylindrical structure, through which the needle can be inserted into the hanging bottle, and the barb structure and the semi-cylindrical structure play a role in fixing the hanging bottle together. Combined with the instruction manual Figure 2As shown, the stepper motor 9 is installed inside the upper end of the main load-bearing rod to drive the rotation of the turntable. The right end of the short straight rod connected to the electric telescopic rod is a small clip for clamping the needle tube. When the electric telescopic rod is telescopic, it can ensure that the short straight rod can drive the needle tube to pull out and insert the hanging bottle.

[0021] In the present embodiment, when hanging bottle is installed, first reduce the height of main bearing rod 1, make rotating disk 3 reach the height that medical staff is convenient to change hanging bottle, then put needed hanging bottle into circular through hole in order, that end of hanging bottle needle tube needs to be placed just above the central small hole of the lower surface of semi-cylinder 5, and fit with the lower surface of semi-cylinder 5, when guaranteeing to change hanging bottle automatically, needle tube can accurately insert next hanging bottle, then the clip of short straight bar 7 left end is clamped needle tube and needle tube is inserted into first hanging bottle, like this, the coordination setting between barb structure 4 and semi-cylindrical structure 5 can realize the installation of hanging bottle quickly, thereby saves the time of medical care, finally starter gets final product.When hanging bottle is all finished, medical staff can first loosen the clip that is connected with needle tube on the left side of short straight bar 7, then rotate out the lower surface of semi-cylindrical just below the circular through hole of hanging bottle, until hanging bottle can be taken out from below.

[0022] Specifically, combined with Figure 1 As shown, the top of the barb structure 4 is changed from the original pointed structure to an arc-shaped structure to prevent the wrong operation of pushing the bottle back from causing the barb to be inserted into the bottle and causing unnecessary losses; secondly, the distance between the bottom end of the barb structure 4 and the lower surface of the semi-cylindrical structure 5 should be about 15 to 20 centimeters. If it is too close, the barb structure will not have much resistance to the bottle and it will be easily pushed back by the thrust of the needle when replacing the bottle; if it is too far, the bottom end of the barb structure will be too close to the upper end of the bottle, resulting in shaking of the bottle as long as there is a slight external force colliding with the device during the infusion process, causing an accident.

[0023] Specifically, the driving assembly includes a water level detection module 6, an electric telescopic rod 8 and a stepping motor 9. Figure 2 As shown, the upper part of the electric telescopic rod 8 is surrounded by a rectangular shell and connected to the main load-bearing rod 1, and the water level detection module 6 is placed horizontally on the side of the rectangular shell close to the hanging bottle and fixed by screws, which is conducive to the precise control of the water level in the hanging bottle; the end of the electric telescopic rod 8 equipped with the telescopic rod is placed downward, which is conducive to the extraction and insertion of the needle tube; the stepper motor is placed inside the upper end of the main load-bearing rod and directly below the turntable, which is conducive to driving the rotation of the turntable.

[0024] Specifically, after the device is started, when the medicine in each hanging bottle is used up, the water level detection module generates a high potential and generates a signal to the electric telescopic rod. After receiving the signal, the electric telescopic rod immediately extends the telescopic rod and pulls the needle out of the used hanging bottle with the short straight rod. After the action is completed, the signal is transmitted to the stepper motor. After receiving the signal, the controller of the stepper motor outputs 8 pulses to make the turntable rotate 45° clockwise. After the action is completed, the last signal is transmitted to the electric telescopic rod. The telescopic rod of the electric telescopic rod completes the final collection action and inserts the needle into the next hanging bottle. In addition to the stepper motor installed inside and outside the main load-bearing rod, other driving components are installed nakedly under the turntable by bolt connection, which is convenient for the maintenance and repair of the device in the later stage.

[0025] In addition, the settings for leakage detection, fault alarm and prompt are already very mature in the prior art and will not be described in this article.

[0026] The above embodiments are preferred examples for implementing the present invention, and the present invention is not limited to the above embodiments. Any non-essential additions and substitutions made by those skilled in the art based on the technical features of the technical solution of the present invention shall fall within the protection scope of the present invention.

Claims

1. An infusion device for automatically replacing a hanging bottle, characterized in that: The infusion bottle is fixed by the barb structure and the semi-cylindrical structure, and the liquid level of the medicine is monitored by the water level detection module. The stepper motor will drive the turntable to rotate a certain angle after receiving the signal from the electric telescopic rod. The device can complete the replacement of the infusion bottle without medical staff. The barb structure can ensure that the IV bottle is firmly fixed in the placement port; the semi-cylindrical structure can assist the barb structure in fixing the IV bottle, and also facilitates medical staff to take out the used IV bottle. The water level detection module is connected to the electric telescopic rod and consists of a non-contact water level detection module and ESP8266. When the water level of the hanging bottle drops to a certain scale, the water level detection module can detect the signal and make the next action.

2. The infusion device for automatically replacing hanging bottles according to claim 1, characterized in that: The control structure of the electric telescopic rod also includes a motor, a reducer and a control system.

3. The infusion device for automatically replacing a hanging bottle according to claim 1, characterized in that: Its fixed structure includes: a turntable, a semi-cylinder and a barb structure, wherein the barb structure is evenly distributed in the turntable and the semi-cylinder is located below the turntable; its monitoring device: a water level detection module, which detects the water level and generates and transmits signals.

4. The infusion device for automatically replacing hanging bottles according to claims 1 and 2, characterized in that: The fixing structure can fix various types of hanging bottles, and the semi-cylindrical bottom surface can rotate 360 ​​degrees around the rotation point, so that the used hanging bottles can be easily taken out.

5. The infusion device for automatically replacing hanging bottles according to claim 1, characterized in that: The electric telescopic rod is connected invertedly to the upper end of the main load-bearing rod to facilitate the extraction and insertion of the needle. When the electric telescopic rod receives the signal from the water level detection module and makes a corresponding action, the needle is extracted or inserted into the bottle.

6. The infusion device for automatically replacing hanging bottles according to claim 1, characterized in that The stepper motor, water level detection module and electric telescopic rod cooperate with each other to complete the replacement of the hanging bottle. There is a strict signal transmission relationship between the three and the replacement of the hanging bottle must be completed in a short time.

7. The infusion device for automatically replacing hanging bottles according to claim 3, characterized in that: The hanging bottle, the small hole in the middle of the bottom of the semi-cylinder and the needle are in a straight line. The top of the electric telescopic rod and the tail of the needle are on the same horizontal plane, ensuring that the needle can be accurately inserted into the hanging bottle and the electric telescopic rod can play the maximum efficiency. The device can complete the replacement of the hanging bottle without medical staff.

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