Enteral nutrition infusion device with real-time monitoring function
By designing a real-time monitoring enteral nutrition infusion device based on the Internet of Things, the problem that traditional sensors are difficult to efficiently apply information is solved, the timely supplement of nutrients and the guarantee of appropriate temperature are achieved, and the patient's comfort and treatment effect are improved.
Patent Information
- Application Number
- CN202411247707.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-06
- Publication Date
- 2025-01-24
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
It is difficult for traditional electronic sensors to apply the collected information to the user's supporting supply equipment efficiently and in a timely manner, especially in the scenario where the physical and chemical indicators of the body are frequently monitored, frequent blood draw operations are not suitable.
Design a real-time monitoring enteral nutrition infusion device based on the Internet of Things, including a sensor, processor, level amplifier, motor, peristaltic shell, flexible conduit and preheating tube attached to the surface of the human body. The sensor collects secretion information on the human body surface, and the processor determines the nutrient solution that needs to be supplemented, and realizes the infusion of the nutrient solution through the motor and peristaltic shell. At the same time, the preheating tube ensures that the nutrient fluid reaches a suitable body temperature.
The electronic sensor applied the collected information to the user's supporting equipment efficiently and in a timely manner, solved the problem of frequent blood drawing, ensured the timely supplement and appropriate temperature of nutrients, improved the comfort and the treatment effect of patients Essence
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Figure CN119345039A_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of medical devices, and in particular to a real-time monitoring enteral nutrition infusion device. Background Art
[0002] Nutrients circulating in the body are important substances for maintaining body functions and overall health. Nutrients circulating in the body can be detected through physical and chemical indicators. Traditional methods of nutritional testing are mostly achieved through blood analysis. This analysis method requires blood drawing during the collection of traditional physical and chemical indicators. For subjects who need to dynamically and frequently monitor their physical and chemical indicators, this frequent blood drawing operation is not suitable.
[0003] Currently, there are wearable electronic sensors on the market based on mass-producible laser-etched graphene (LEG), electrochemically synthesized redox nanoprobes (nanoreporters, RARs), molecular imprinted polymers (MIP) "artificial antibodies", and in-situ regeneration and calibration technology. However, the working end of this sensor is mostly a host analysis system, which makes it difficult to timely feed back the collected information to the user's supporting supply equipment, such as infusion equipment.
[0004] To this end, it is necessary to propose an enteral nutrition infusion device based on real-time monitoring of the Internet of Things to address the defect that traditional electronic sensors are difficult to apply the collected information to the user's supporting supply equipment efficiently and timely. Summary of the invention
[0005] Based on this, it is necessary to propose an enteral nutrition infusion device based on real-time monitoring of the Internet of Things to address the defect that traditional electronic sensors are difficult to apply the collected information to the user's supporting supply equipment efficiently and timely.
[0006] The present application provides a real-time monitoring enteral nutrition infusion device, comprising:
[0007] A sensor is attached to the skin surface of the test part;
[0008] a processor, communicatively connected to the sensor;
[0009] A level amplifier, electrically connected to the processor;
[0010] A motor, electrically connected to the level amplifier;
[0011] A creeping shell, fixedly connected to a power shaft of the motor;
[0012] A flexible conduit, wherein a first end of the flexible conduit serves as an input end of the nutrient solution, a second end of the flexible conduit passes through the peristaltic shell, and the second end of the flexible conduit serves as an output end of the nutrient solution;
[0013] A preheating tube is electrically connected to the level amplifier, and the preheating tube is sleeved on the second end of the flexible conduit.
[0014] The present application also provides a control method for a real-time monitored enteral nutrition infusion device, which is applied to the real-time monitored enteral nutrition infusion device mentioned above. The control method for the real-time monitored enteral nutrition infusion device includes:
[0015] Select a PWM pulse width, and determine the ID of the physical and chemical index corresponding to the PWM pulse width as the physical and chemical index ID to be measured;
[0016] Applying a level having a pulse width of the PWM to the sensor to receive a feedback level of the sensor;
[0017] Returning to the selection of a PWM pulse width until all pulse widths are selected to complete a sampling cycle;
[0018] Performing multiple sampling cycles to obtain multiple sets of continuous feedback levels;
[0019] Select a set of feedback levels;
[0020] The feedback level of the group is simulated, an analog signal is output, and the analog signal is stored corresponding to the ID of the physical and chemical index to be measured;
[0021] Returning to the step of selecting a set of feedback levels until all sets of feedback levels are selected;
[0022] Determine the nutrient solution to be supplemented according to the analog signal corresponding to each physical and chemical index to be measured;
[0023] The output performs level to level amplifier.
[0024] The present application relates to a real-time monitoring enteral nutrition infusion device, which collects secretion information on the surface of the human body through a sensor attached to the surface of the human body. These secretions include inorganic salts, water, and various trace macromolecular nutrients. Since macromolecular nutrients have large molecular weight and small charge carrying capacity, the sensor is divided into multiple sensing intervals. The sensor collects data, and the processor determines the need to supplement water, inorganic salts and nutrients based on the collected real-time data. The processor transmits the corresponding level signal to the level amplifier, and the motor receives the level signal of the level amplifier to perform the low-speed rotation task. The motor drives the peristaltic shell to peristaltically squeeze the flexible conduit to move the nutrient solution in the flexible conduit. In order to ensure that the human body does not cause muscle spasm due to the entry of low-temperature nutrient fluid into the body, a preheating tube is set on the outside of the flexible conduit to achieve the transformation of the nutrient fluid from low temperature to suitable body temperature. This realizes the purpose of the electronic sensor to efficiently and timely apply the collected information to the user's supporting supply equipment. BRIEF DESCRIPTION OF THE DRAWINGS
[0025] The drawings constituting a part of this application are used to provide a further understanding of this application, so that other features, purposes and advantages of this application become more obvious. The illustrative embodiment drawings and their descriptions of this application are used to explain this application and do not constitute an improper limitation on this application.
[0026] Figure 1 A schematic diagram of the structure of a real-time monitoring enteral nutrition infusion device provided in one embodiment of the present application.
[0027] Figure 2 A schematic diagram of the connection relationship between a peristaltic shell and a flexible catheter in a real-time monitoring enteral nutrition infusion device provided in one embodiment of the present application.
[0028] Figure 3 A schematic diagram of the connection relationship between a processor, a level amplifier, a flexible catheter and a preheating tube in a real-time monitoring enteral nutrition infusion device provided in one embodiment of the present application.
[0029] Figure 4 A schematic diagram of the structure of a temperature measuring membrane in a real-time monitoring enteral nutrition infusion device provided in one embodiment of the present application.
[0030] Figure 5 A schematic diagram of the connection relationship between a sensor and a processor in a real-time monitoring enteral nutrition infusion device provided in one embodiment of the present application.
[0031] Figure 6 A schematic diagram of the structure of a nutrition sensor in a real-time monitoring enteral nutrition infusion device provided in one embodiment of the present application.
[0032] Figure 7A diagram showing the relationship between current and time of different blade areas of a sensor in a real-time monitoring enteral nutrition infusion device provided in one embodiment of the present application.
[0033] Figure 8 A method flow chart of a control method for a real-time monitoring enteral nutrition infusion device provided in one embodiment of the present application.
[0034] Reference numerals:
[0035] 100-sensor; 110-ion electrode; 120-microfluidic module; 130-nutrient sensor; 131-arc electrode; 132-central electrode; 133-fan blade area; 140-electrolyte sensor; 200-processor; 300-level amplifier; 400-motor; 500-peristaltic shell; 510-main body; 520-clamping plate; 530-extrusion column; 540-annular groove; 541-first opening; 542-second opening; 600-flexible conduit; 610-first end of the flexible conduit; 620-second end of the flexible conduit; 700-preheating tube; 710-first branch tube; 711-heating wire; 712-temperature measuring film; 713-first coating; 714-second coating; 715-metal film; 716-branch body; 720-second branch tube; 730-third branch tube. DETAILED DESCRIPTION
[0036] In order to make the purpose, technical solution and advantages of the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.
[0037] The present application provides a real-time monitoring enteral nutrition infusion device.
[0038] like Figure 1 As shown, in one embodiment of the present application, a real-time monitoring enteral nutrition infusion device includes a sensor 100, a processor 200, a level amplifier 300, a motor 400, a peristaltic shell 500, a flexible catheter 600 and a preheating tube 700.
[0039] The sensor 100 is attached to the skin surface of the test part.
[0040] The processor 200 is in communication with the sensor 100 .
[0041] The level amplifier 300 is electrically connected to the processor 200 .
[0042] The motor 400 is electrically connected to the level amplifier 300 .
[0043] The creeping shell 500 is fixedly connected to the power shaft of the motor 400 .
[0044] The first end 610 of the flexible conduit 600 serves as an input end of the nutrient solution, and the second end 620 of the flexible conduit 600 passes through the peristaltic shell 500 , and the second end 620 of the flexible conduit 600 serves as an output end of the nutrient solution.
[0045] The preheating tube 700 is electrically connected to the level amplifier 300 , and the preheating tube 700 is sleeved on the second end 620 of the flexible conduit 600 .
[0046] Specifically, the processor 200 is externally connected to a WIFI or Bluetooth device, and is also externally connected to a USB, an electronic screen, and a keyboard. The entire real-time monitoring enteral nutrition infusion device is powered based on a TYPE-C interface.
[0047] Through the external port, the real-time monitoring enteral nutrition infusion device can be connected to the HIS system (HIS-Hospital Information System).
[0048] By connecting to the HIS system, the real-time monitoring enteral nutrition infusion device can automatically identify, record and store the working status data of the infusion pump. Intercommunication with the HIS makes it convenient for nurses, doctors and nutritionists to accurately monitor the entire process of enteral nutrition treatment.
[0049] The level amplifier 300 can receive the level signal of the processor 200 to control the speed of the motor 400 and the heating temperature of the preheating tube 700. At the same time, the processor 200 monitors the infusion process throughout the whole process to realize data storage and transmission.
[0050] The present embodiment relates to a real-time monitoring enteral nutrition infusion device, through the sensor 100 attached to the surface of the human body, the secretion information on the surface of the human body is collected, and these secretions include inorganic salts, water, various trace macromolecular nutrients. Since the macromolecular nutrients have large molecular weight and small charge carrying capacity, the sensor 100 is divided into multiple sensing intervals. The sensor 100 collects data, and the processor 200 determines the need to supplement water, inorganic salts and nutrients according to the collected real-time data. The processor 200 transmits the corresponding level signal to the level amplifier 300, and the motor 400 receives the level signal of the level amplifier 300 to perform the low-speed rotation task. The motor 400 drives the peristaltic shell 500 to peristaltically squeeze the flexible conduit 600 to move the nutrient solution in the flexible conduit 600. In order to ensure that the human body does not cause muscle spasm due to the entry of low-temperature nutrient fluid into the body, a preheating tube 700 is set on the outside of the flexible conduit 600 to achieve the transformation of the nutrient fluid from low temperature to suitable body temperature. This realizes the purpose of the electronic sensor 100 to efficiently and timely apply the collected information to the user's matching supply equipment.
[0051] like Figure 2 As shown, in one embodiment of the present application, the peristaltic shell 500 includes a body 510, a clamping plate 520 and a plurality of extrusion columns 530. The body 510 is a round pancake-shaped shell, the clamping plate 520 is embedded in the body 510, and an annular groove 540 is formed between the outer wall of the body 510 and the clamping plate 520. The clamping plate 520 is hinged to the body 510 so that the clamping plate 520 can rotate relative to the body 510. A plurality of the extrusion columns 530 are evenly arranged in an annular pattern around the geometric center of the clamping plate 520 and arranged on the clamping plate 520. The annular groove 540 has a first opening 541 and a second opening 542. The flexible conduit 600 is introduced into the annular groove 540 through the first opening 541, and the flexible conduit 600 is led out of the annular groove 540 through the second opening 542, and the flexible conduit 600 is tightly pressed in the annular groove 540.
[0052] Specifically, the body 510 is the main body of the entire peristaltic shell 500 , and the body 510 is composed of a curved wall and two clamping plates. The clamping plate 520 is circular, and the center of the clamping plate 520 coincides with the center of the curved wall.
[0053] Each of the extrusion columns 530 is evenly arranged around the geometric center of the clamping plate 520 , and each of the extrusion columns 530 is disposed at the edge of the clamping plate 520 .
[0054] This embodiment relates to a peristaltic shell 500, and a clamping plate 520 of the peristaltic shell 500 is fixedly connected to the power shaft of the motor 400. When the power shaft of the motor 400 rotates, the clamping plate 520 drives the extrusion column 530 to rotate, thereby achieving the extrusion of the flexible conduit 600 between the inner wall of the body 510 and the extrusion column 530. Since there is a gap between each extrusion column 530, the nutrient fluid in the flexible conduit 600 can flow in the flexible conduit 600.
[0055] like Figure 3 As shown, in one embodiment of the present application, the preheating tube 700 includes a first branch tube 710, a second branch tube 720 and a third branch tube 730. The first branch tube 710, the second branch tube 720 and the third branch tube 730 have the same structure. The first branch tube 710, the second branch tube 720 and the third branch tube 730 are sequentially connected. The first branch tube 710, the second branch tube 720 and the third branch tube 730 are all electrically connected to the level amplifier 300.
[0056] Specifically, since it is necessary to adapt to nutrient fluids with different flow rates, the preheating pipe 700 is composed of a first branch pipe 710, a second branch pipe 720, and a third branch pipe 730. When the flow rate of the nutrient fluid is low, the first branch pipe 710 performs the heating task. When the flow rate of the nutrient fluid is moderate, the first branch pipe 710 and the second branch pipe 720 perform the heating task. When the flow rate of the nutrient fluid is high, the first branch pipe 710, the second branch pipe 720, and the third branch pipe 730 perform the heating task together.
[0057] This embodiment relates to a preheating tube 700. The preheating tube 700 ensures that the human body does not suffer muscle spasms due to the entry of low-temperature nutrient fluid into the body. The preheating tube 700 is arranged on the outside of the flexible conduit 600 to achieve the transformation of the nutrient fluid from low temperature to a temperature suitable for the body. At the same time, the first branch pipe 710, the second branch pipe 720 and the third branch pipe 730 with the same structure can adapt to different flow rates of the nutrient fluid.
[0058] like Figure 3 As shown, in one embodiment of the present application, the first branch pipe 710 includes a branch pipe body 716, a heating wire 711 and a temperature measuring film 712. The branch pipe body 716 is sleeved on the outside of the flexible conduit 600, the heating wire 711 is wound on the outer circumference of the branch pipe body 716, and the temperature measuring film 712 covers the inner surface of the branch pipe body 716 wound with the heating wire 711. The heating wire 711 is electrically connected to the level amplifier 300. The temperature measuring film 712 is connected to the processor 200 for communication. The heating wire 711 and the temperature measuring film 712 are arranged in sequence along the central axis of the flexible conduit 600. The temperature measuring film 712 is arranged near the second end 620 of the flexible conduit 600.
[0059] Specifically, the first branch pipe 710 is provided with a heating wire 711 and a temperature measuring film 712. The heating wire 711 and the temperature measuring film 712 are arranged in sequence along the central axis of the flexible conduit 600. When the first branch pipe 710 performs a heating task, the heating wire 711 first approaches the nutrient fluid to perform a heating task on the nutrient fluid. The temperature measuring film 712 close to the heating wire 711 can realize the temperature measurement and feedback tasks of the heated nutrient fluid. The temperature measuring film 712 feeds back information to the processor 200, and the processor 200 can determine whether to turn on the heating function of the second branch pipe 720 and the third branch pipe 730 based on the feedback information and the flow rate of the nutrient fluid. This is mainly because the ambient temperature changes with the change of seasons.
[0060] This embodiment involves the first branch pipe 710. The first branch pipe 710 ensures that the human body does not suffer muscle spasms due to the entry of low-temperature nutrient fluid into the body. A preheating pipe 700 is arranged on the outside of the flexible conduit 600 to achieve the transformation of the nutrient fluid from low temperature to a temperature suitable for the body. At the same time, the first branch pipe 710, the second branch pipe 720 and the third branch pipe 730 with the same structure can adapt to different flow rates of nutrient fluids.
[0061] like Figure 4 As shown, in one embodiment of the present application, the temperature measuring film 712 includes a first coating 713, a second coating 714 and a metal film 715. The first coating 713 is attached to the outer surface of the flexible conduit 600. The second coating 714 is attached to the inner surface of the branch pipe body 716. The metal film 715 is disposed between the first coating 713 and the second coating 714.
[0062] Specifically, the metal film 715 will change its resistance due to the change of temperature. When the metal film 715 changes its resistivity due to the heat conduction of the flexible conduit 600 , the processor 200 can calculate the approximate temperature of the flexible conduit 600 .
[0063] This embodiment involves a temperature measuring film 712. The temperature measuring film 712 can feedback the approximate temperature of the flexible conduit 600. The processor 200 can determine whether to turn on the heating function of the second branch pipe 720 and the third branch pipe 730 according to the feedback temperature. This is mainly because the ambient temperature changes with the change of seasons.
[0064] like Figure 5 As shown, in one embodiment of the present application, the sensor 100 includes a plurality of ion electrodes 110, a microfluidic module 120, a nutrition sensor 130 and an electrolyte sensor 140. The microfluidic module 120, the nutrition sensor 130 and the electrolyte sensor 140 have the same structure. The microfluidic module 120 is electrically connected to the processor 200 through the ion electrode 110. The nutrition sensor 130 is electrically connected to the processor 200 through the ion electrode 110. The electrolyte sensor 140 is electrically connected to the processor 200 through the ion electrode 110.
[0065] like Figure 6 As shown, in one embodiment of the present application, the nutrition sensor 130 includes an arc electrode 131 and a central electrode 132. The central electrode 132 is disposed at the geometric center of the arc electrode 131.
[0066] like Figure 6 As shown, in one embodiment of the present application, the center line of the arc electrode 131 is an equiangular spiral line.
[0067] like Figure 6 As shown, in one embodiment of the present application, the central electrode 132 includes a plurality of blade areas 133. A gap is provided between each of the blade areas 133. Each of the blade areas 133 has the same structure. Each of the blade areas 133 is electrically connected to the processor 200 via an ion electrode 110.
[0068] Specifically, the microfluidic module 120 , the nutrient sensor 130 , and the electrolyte sensor 140 have the same structure.
[0069] The microfluidic module 120 is mainly used to detect moisture. Since moisture and electrolytes are mixed in human secretions, the abundance of moisture can be determined by the movement speed of electrolytes in an electric field. Simply put, when there is less moisture and the concentration of electrolytes is high, the rate of change of current and voltage is large under the same electric field. Similarly, when there is more moisture and the concentration of electrolytes is low, the rate of change of current and voltage is small under the same electric field.
[0070] The nutrition sensor 130 is mainly used to detect trace macromolecules such as metabolic amino acids and proteins in the human body. These nutrients have large molecular weights, carry less charge, and are difficult to measure. To this end, the nutrition sensor 130 is designed to be composed of two parts: an arc electrode 131 and a central electrode 132. The center line of the arc electrode 131 is an equiangular spiral line, and the central electrode 132 includes a plurality of fan blade areas 133. In areas with dense electric field lines, low-voltage electric fields can also drive trace macromolecules. When the number of trace macromolecules is large, the trace macromolecules in the low-voltage electric field move slowly, and the processor 200 needs to parse the continuous current and voltage curves to achieve the determination of the number of trace macromolecules.
[0071] The electrolyte sensor 140 is mainly used to detect metabolic inorganic salts of the human body. This type of substance is relatively large in quantity and appears in the form of ions in aqueous solution.
[0072] The microfluidic module 120, the nutrient sensor 130 and the electrolyte sensor 140 have the same structure. The electrolyte sensor 140 is designed to be composed of two parts, namely, the arc electrode 131 and the central electrode 132, in order to adapt to the electrophoresis-conductivity curves of water, electrolytes, metabolic amino acids and proteins with different molecular numbers and charge numbers.
[0073] To this end, it is necessary to Figure 7 The following explanation is given:
[0074] Figure 7 The four curves A, B, C, and D correspond to Figure 6 The current curve of the A fan blade area, the current curve of the B fan blade area, the current curve of the C fan blade area, and the current curve of the D fan blade area.
[0075] The present application also provides a control method for a real-time monitoring enteral nutrition infusion device.
[0076] like Figure 8 As shown, in one embodiment of the present application, a control method for a real-time monitored enteral nutrition infusion device includes:
[0077] S100, selecting a PWM pulse width, and determining the ID of the physical and chemical index corresponding to the PWM pulse width as the physical and chemical index ID to be measured.
[0078] S200 , applying a level having the pulse width of the PWM to a sensor to receive a feedback level of the sensor.
[0079] S300, returning to the process of selecting a PWM pulse width until all pulse widths are selected to complete a sampling cycle.
[0080] S400, executing multiple sampling cycles to obtain multiple sets of continuous feedback levels.
[0081] S500, select a set of feedback levels.
[0082] S600, simulating the set of feedback levels, outputting analog signals, and storing the analog signals in correspondence with the physical and chemical index ID to be measured.
[0083] S700, returning to the step of selecting a group of feedback levels until all groups of feedback levels are selected.
[0084] S800, determining the nutrient solution to be supplemented according to the analog signal corresponding to each physical and chemical index to be measured.
[0085] S900, output execution level to level amplifier.
[0086] The present embodiment relates to a control method for a real-time monitoring enteral nutrition infusion device. Through different PWM pulse widths, electric fields of different strengths are generated between the arc electrode and the central electrode, thereby obtaining electrophoresis-conductivity curves of water, electrolytes, metabolic amino acids, and proteins with different molecular numbers and charge numbers. The amount of different metabolites is analyzed by the electrophoresis-conductivity curve to collect secretion information on the surface of the human body. These secretions include inorganic salts, water, and various trace macromolecular nutrients. Since macromolecular nutrients have large molecular weights and small charge carrying amounts, the sensor is divided into multiple sensing intervals. Data is collected by the sensor, and the processor determines the need to supplement water, inorganic salts, and nutrients based on the collected real-time data. The processor transmits the corresponding level signal to the level amplifier, and the motor receives the level signal of the level amplifier to perform a low-speed rotation task. The motor drives the peristaltic shell to peristaltically squeeze the flexible conduit to move the nutrient solution in the flexible conduit. In order to ensure that the human body does not cause muscle spasm due to the entry of low-temperature nutrient fluid into the body, a preheating tube is set on the outside of the flexible conduit to achieve the transformation of the nutrient fluid from low temperature to suitable body temperature. This achieves the purpose of the electronic sensor efficiently and timely applying the collected information to the user's supporting supply equipment.
[0087] The technical features of the above-described embodiments may be arbitrarily combined, and the execution order of the method steps is not limited. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.
[0088] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the present application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the attached claims.
Claims
1. A real-time monitoring enteral nutrition infusion device, characterized in that: include: A sensor is attached to the skin surface of the test part; a processor, communicatively connected to the sensor; A level amplifier, electrically connected to the processor; A motor, electrically connected to the level amplifier; A creeping shell, fixedly connected to a power shaft of the motor; A flexible conduit, wherein a first end of the flexible conduit serves as an input end of the nutrient solution, a second end of the flexible conduit passes through the peristaltic shell, and the second end of the flexible conduit serves as an output end of the nutrient solution; A preheating tube is electrically connected to the level amplifier, and the preheating tube is sleeved on the second end of the flexible conduit.
2. The real-time monitoring enteral nutrition infusion device according to claim 1, characterized in that: The creeping shell comprises a body, a clamping plate and a plurality of extrusion columns; The main body is a round pancake-shaped shell, the clamping plate is embedded in the main body, and an annular groove is formed between the outer wall of the main body and the clamping plate; The clamping plate is hinged to the body so that the clamping plate can rotate relative to the body; A plurality of the extrusion columns are evenly arranged in an annular pattern around the geometric center of the clamping plate and are disposed on the clamping plate; The annular groove has a first opening and a second opening. The flexible conduit is introduced into the annular groove through the first opening and is led out of the annular groove through the second opening. The flexible conduit is tightly pressed in the annular groove.
3. The real-time monitoring enteral nutrition infusion device according to claim 2, characterized in that: The preheating pipe includes a first branch pipe, a second branch pipe and a third branch pipe; The first sub-manager, the second sub-manager and the third sub-manager have the same structure; The first branch pipe, the second branch pipe and the third branch pipe are turned on in sequence; The first branch pipe, the second branch pipe and the third branch pipe are all electrically connected to the level amplifier.
4. The real-time monitoring enteral nutrition infusion device according to claim 3, characterized in that: The first branch pipe comprises a branch pipe body, a heating wire and a temperature measuring film; The branch pipe body is sleeved on the outside of the flexible conduit, the heating wire is wound on the outer circumference of the branch pipe body, and the temperature measuring film is covered on the inner circumference of the branch pipe body; The heating wire is electrically connected to the level amplifier; The temperature measuring film is communicatively connected with the processor; The heating wire and the temperature measuring film are arranged in sequence along the axial direction of the central axis of the flexible conduit; The temperature measuring film is arranged closer to the second end of the flexible conduit than the heating wire.
5. The real-time monitoring enteral nutrition infusion device according to claim 4, characterized in that: The temperature measuring film comprises a first covering film, a second covering film and a metal film; The first coating is attached to the outer surface of the flexible conduit; The second coating is attached to the inner surface of the branch pipe body; The metal thin film is disposed between the first coating and the second coating.
6. The real-time monitoring enteral nutrition infusion device according to claim 5, characterized in that: The sensor includes a plurality of ion electrodes, a microfluidic module, a nutrient sensor and an electrolyte sensor; The microfluidic module is electrically connected to the processor via the ion electrode; The nutrition sensor is electrically connected to the processor via the ion electrode; The electrolyte sensor is electrically connected to the processor via the ion electrode.
7. The real-time monitoring enteral nutrition infusion device according to claim 6, characterized in that: The nutrition sensor comprises an arc electrode and a central electrode; The central electrode is arranged at the geometric center of the arc electrode.
8. The real-time monitoring enteral nutrition infusion device according to claim 7, characterized in that: The line type of the center line of the arc electrode is an equiangular spiral line.
9. The real-time monitoring enteral nutrition infusion device according to claim 8, characterized in that: The central electrode includes a plurality of fan blade areas; A gap is provided between each of the fan blade areas; Each of the fan blade areas has the same structure; Each of the fan blade areas is electrically connected to the processor via an ion electrode.
10. A control method for a real-time monitoring enteral nutrition infusion device, characterized in that: The method applied to the real-time monitoring enteral nutrition infusion device according to any one of claims 1 to 9 comprises: Select a PWM pulse width, and determine the ID of the physical and chemical index corresponding to the PWM pulse width as the physical and chemical index ID to be measured; Applying a level having a pulse width of the PWM to the sensor to receive a feedback level of the sensor; Returning to the selection of a PWM pulse width until all pulse widths are selected to complete a sampling cycle; Performing multiple sampling cycles to obtain multiple sets of continuous feedback levels; Select a set of feedback levels; The feedback level of the group is simulated, an analog signal is output, and the analog signal is stored corresponding to the ID of the physical and chemical index to be measured; Returning to the step of selecting a set of feedback levels until all sets of feedback levels are selected; Determine the nutrient solution to be supplemented according to the analog signal corresponding to each physical and chemical index to be measured; The output performs level to level amplifier.