Veterinary enemator based on self-adaptive flow rate control and control method

Abstract

The invention discloses a veterinary enemator based on self-adaptive flow rate control and a control method. The enemator comprises a control system and a sensing system, the sensing system is used for collecting real-time sensing signals of the bottom of a drenching container and the front end of an anal tube, and the real-time sensing signals comprise temperature signals and pressure signals of liquid; the calculation unit receives a real-time sensing signal uploaded by the sensing system, and calculates a target flow velocity according to a preset flow velocity calculation model; the electronic expansion valve contracts or expands based on the target flow velocity, and the flow velocity of the medicine in the hose is regulated and controlled in real time. The calculation unit calculates the flow velocity according to a preset algorithm, and the cross sectional area of liquid in the hose is changed by using the electronic expansion valve, so that self-adaptive flow velocity control is realized, and different enema requirements can be met. The medicine can be uniformly distributed in the intestinal tract, and the accuracy and the safety of enema treatment are further improved.

Description

Technical Field

[0001] The present invention relates to the field of medical auxiliary equipment, and more particularly to a veterinary enema based on adaptive flow rate control and a control method thereof. Background Art

[0002] Enemas are a convenient tool widely used in hospitals and medical facilities. They are generally used for intestinal cleansing and can also be used for intestinal examinations. Traditional enema devices rely primarily on manual extrusion, where the operator squeezes the drug from the container into the anal canal. While convenient and inexpensive, they suffer from numerous inefficiencies. For example, precise control of drug delivery is impossible, and flow control relies on manual experience, resulting in crude dosage control. Furthermore, the cow's intestines may experience changes in resistance during the enema process due to stress. Manual operation cannot sense and adjust the force, easily leading to enema interruptions or sudden changes in pressure. In severe cases, this can damage the intestine and cause acute peritonitis, posing a high risk of death.

[0003] The Chinese invention patent with application number "201811075426.8" discloses a disposable enema. By inserting the enema tube into the intestine, it solves the problem that the intestinal lesions are too long to fully contact the medicine solution, and can break up the accumulated stool to facilitate the effective implementation of the enema work; the Chinese invention patent with application number "202110450511.3" discloses a gun-type multifunctional automatic enema. By selecting the mode, intake and pressure, pressing the start switch, and injecting through the peristaltic pump instead of the traditional drip bottle, the efficiency of use is greatly improved. It can be reused after cleaning and sterilization, replacing the traditional disposable enema.

[0004] However, the above enema devices do not fully consider the importance of adaptive flow rate control when performing enema operations, and cannot meet the precise control of flow rate. They can easily cause stress during the enema process, leading to rupture and bleeding of intestinal mucosal blood vessels, and even penetrate the intestinal wall to cause peritonitis. Summary of the Invention

[0005] In view of this, the present invention provides a veterinary enema based on adaptive flow rate control and a control method, which are used to solve the problem that existing enemas cannot accurately control the flow rate of the drug during the enema process.

[0006] To achieve the above objectives, the following solutions are proposed:

[0007] A veterinary enema device based on adaptive flow rate control comprises: an enema container, a hose, an anal tube, a control system and a sensing system; the control system comprises an input module and a controller, and the controller comprises an input module, a computing unit and an electronic expansion valve;

[0008] The medicine filling container is used to hold medicine;

[0009] The sensing system is used to collect real-time sensing signals from the bottom of the medicine filling container and the front end of the anal canal, and the real-time sensing signals include temperature signals and pressure signals of the liquid;

[0010] The input module is used to obtain initial parameters input by the user;

[0011] The calculation unit receives the real-time sensing signal uploaded by the sensing system and calculates the target flow rate according to a preset flow rate calculation model;

[0012] The electronic expansion valve contracts or relaxes based on the target flow rate, thereby achieving real-time regulation of the flow rate of the drug in the hose.

[0013] Preferably, the sensing system includes a temperature sensor and a pressure sensor;

[0014] The temperature sensor is used to collect the temperature of the liquid at the bottom of the medicine filling container and the front end of the anal canal in real time, and convert the temperature signal into an electrical signal;

[0015] The pressure sensor is used to collect the pressure of the liquid at the bottom of the medicine filling container and the front end of the anal canal in real time, and convert the pressure signal into an electrical signal.

[0016] Preferably, the medicine filling container comprises an inner layer and an outer layer;

[0017] The inner layer is made of polypropylene;

[0018] The outer layer is made of polyurethane foam.

[0019] Preferably, the control system further comprises: a human-computer interaction module;

[0020] The human-computer interaction module is used to display the real-time sensing signal, the basic flow rate, and the trend graph calculated by the calculation unit.

[0021] Preferably, the human-computer interaction module is also used to stop the injection of medicine and issue a danger warning to the staff when the real-time sensing signal and the target flow rate exceed the safety threshold.

[0022] Preferably, the electronic expansion valve contracts or relaxes based on the target flow rate to achieve real-time control of the flow rate of the drug in the hose, including:

[0023] The electronic expansion valve converts the signal value of the target flow rate into the corresponding opening control value of the valve port and sends a pulse signal to the motor. The pulse signal causes the motor to rotate a fixed angle. The motor is connected to the valve core of the electronic expansion valve through a screw nut transmission mechanism.

[0024] If the current flow rate is lower than the target flow rate, the motor rotates forward, the screw rotates synchronously, the nut drives the valve core to move outward, the valve port of the electronic expansion valve gradually expands, and the flow area of ​​the liquid in the hose is increased, so that the current flow rate increases to the target flow rate;

[0025] If the current flow rate is greater than the target flow rate, the motor will reverse, the valve core will move inward, the valve will shrink, and the flow area of ​​the liquid in the hose will be reduced, so that the current flow rate is reduced to the target flow rate.

[0026] Preferably, the device further comprises: a filter, wherein the filter comprises a filter screen.

[0027] A veterinary enema control method based on adaptive flow rate control is applied to the aforementioned veterinary enema, and the control method includes:

[0028] Get the initial parameters entered by the user;

[0029] Perform enema based on the initial parameters, and collect real-time sensing signals during the enema process through the sensing system, wherein the real-time sensing signals include temperature signals and pressure signals of the liquid;

[0030] The calculation unit substitutes the real-time sensing signal into the preset flow rate calculation model to calculate the target flow rate, and outputs the target flow rate to the electronic expansion valve in the form of an electrical signal;

[0031] The electronic expansion valve contracts or relaxes according to the target flow rate to regulate the flow rate of the drug.

[0032] Preferably, the calculation unit substitutes the real-time sensing signal into a preset flow rate calculation model for calculation to obtain the target flow rate, including:

[0033] The dynamic adjustment item is calculated based on the real-time temperature and pressure of the liquid in the real-time sensing signal:

[0034]

[0035] Among them, k6 and k7 are adjustment parameters, τ represents the time parameter, a1 is the real-time pressure at the front end of the anal canal, and t is the temperature parameter;

[0036] Calculate the target flow rate based on the calculated dynamic adjustment item:

[0037]

[0038] Among them, V auto is the target flow rate, V2 is the basic flow rate, f(a, t) is the dynamic adjustment item, k4 and k5 are adjustment parameters, m is the length of the irrigating container, l is the length of the anal canal, c1 is the inner diameter of the anal canal, and c2 is the inner diameter of the irrigating container.

[0039] Preferably, before the calculation unit outputs the target flow rate in the form of an electrical signal to the electronic expansion valve, the control method further includes:

[0040] Based on the preset blocking discriminant, it is determined whether the current real-time sensing signal and the target flow rate exceed the safety threshold. The blocking discriminant is:

[0041]

[0042] Among them, k8~k 13 To adjust the parameters, V auto is the target flow rate, V min 、V max They represent the minimum flow rate threshold and the maximum flow rate threshold respectively, t1 is the real-time temperature at the front end of the anal canal, t min , t max They represent the maximum temperature threshold and the minimum temperature threshold respectively, a1 is the real-time pressure at the front end of the anal canal, and a min 、a max Represent the minimum pressure threshold and the maximum pressure threshold respectively;

[0043] If the safety threshold is exceeded, the injection will be stopped and a danger warning will be issued to the staff;

[0044] If the safety threshold is not exceeded, the target flow rate is output to the electronic expansion valve in the form of an electrical signal, and the filling is carried out normally until the filling is completed.

[0045] According to the specific embodiments provided by the present invention, the present invention discloses the following technical effects:

[0046] The veterinary enema device based on adaptive flow rate control provided by the present invention includes a control system and a sensing system, wherein the sensing system is used to collect real-time sensing signals from the bottom of the medicine filling container and the front end of the anal canal, and the real-time sensing signals include the temperature signal and pressure signal of the liquid; the computing unit receives the real-time sensing signals uploaded by the sensing system, and calculates the target flow rate according to a preset flow rate calculation model; the electronic expansion valve contracts or relaxes based on the target flow rate to achieve real-time regulation of the flow rate of the medicine in the hose. The computing unit of the present invention calculates the flow rate according to a preset algorithm, and uses the electronic expansion valve to change the cross-sectional area of ​​the liquid in the hose, thereby achieving adaptive flow rate control, which can meet different enema needs. It is conducive to the uniform distribution of the medicine in the intestine, further improving the accuracy and safety of enema treatment.

[0047] The present invention can display data such as pressure, temperature, basic flow rate, trend chart, etc. in real time through the human-computer interaction module in the control system, which is convenient for operators to conduct subsequent analysis and provide data support for optimizing treatment plans and breeding management.

[0048] The present invention utilizes an adaptive flow rate control method for controlling a veterinary enema device. By implementing a blocking discriminant, the controller can react promptly to special circumstances and terminate the enema operation when necessary. This method comprehensively ensures the safety of cattle during the enema process, enhances the intelligent operation level, and improves the overall stability of the enema device. BRIEF DESCRIPTION OF THE DRAWINGS

[0049] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are merely embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying any creative work.

[0050] Figure 1 A structural diagram of a veterinary enema based on adaptive flow rate control provided by an embodiment of the present invention;

[0051] Figure 2 A cross-sectional view of a veterinary enema device based on adaptive flow rate control provided by an embodiment of the present invention;

[0052] Figure 3 A diagram showing the installation locations of sensors in a perception system according to an embodiment of the present invention;

[0053] Figure 4-5 They are respectively enlarged schematic diagrams of different position sensors provided by embodiments of the present invention;

[0054] Figure 6 A flow chart of a method for controlling a veterinary enema based on adaptive flow rate control provided by an embodiment of the present invention;

[0055] Figure 7 A flow chart of another veterinary enema control method based on adaptive flow rate control provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0056] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only 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 making creative efforts are within the scope of protection of the present invention.

[0057] First, combine Figure 1-3This article introduces a veterinary enema device with adaptive flow rate control, provided by an embodiment of the present invention. This device can be used for enema administration in animals such as cattle and horses. As shown in the figure, the enema device includes a medication container 1, a flexible tube 2, an anal canal 3, a control system 4, and a sensing system. It also includes a hook, a dosing cap, scale lines, a medication outlet, a filter 6, a three-way connector, and a check valve 7.

[0058] Specifically, the filter includes a filter mesh. The medicine container 1 is used to hold the medicine and comprises an inner layer and an outer layer. The inner layer directly contacts the medicine and can be made of corrosion-resistant polypropylene. The outer layer provides insulation and can be made of polyurethane foam, which has excellent thermal insulation properties.

[0059] like Figure 3 As shown, the sensing system sensors are located at the B mark position at the bottom of the medicine filling container 1 and the A mark position at the front end of the anal canal 3. The sensing system is used to collect real-time sensing signals from the bottom of the medicine filling container 1 and the front end of the anal canal 3. The real-time sensing signals include the temperature signal and pressure signal of the liquid, providing accurate temperature data and pressure data for the calculation unit. Figure 4-5 As shown, the sensing system includes a temperature sensor 51, a pressure sensor 52, and a gas sensor. The temperature sensor 51 collects the temperature of the liquid at the bottom of the medicine filling container 1 and the front end of the anal canal 3 in real time and converts the temperature signal into an electrical signal. The pressure sensor 52 collects the pressure of the liquid at the bottom of the medicine filling container 1 and the front end of the anal canal 3 in real time and converts the pressure signal into an electrical signal. The gas sensor monitors whether there is gas flow in the anal canal 3 in real time.

[0060] The control system includes an input module and a controller, wherein the controller includes an input module, a calculation unit, and an electronic expansion valve.

[0061] The input module is used to obtain initial parameters input by the user, such as the reference temperature, reference pressure, dimensions of the container and anal canal 3, and reference drug viscosity. The calculation unit receives real-time sensing signals uploaded by the sensing system and calculates the target flow rate based on a preset flow rate calculation model. The calculation unit is associated with the temperature sensor 51 and the pressure sensor 52. It receives the transmitted temperature and pressure signals, calculates the flow rate based on the preset flow rate calculation model, and outputs the target flow rate as an electrical signal to the electronic expansion valve, thereby controlling the contraction and expansion of the electronic expansion valve and achieving precise control of the liquid flow rate.

[0062] The electronic expansion valve contracts or expands based on the target flow rate, achieving real-time control of the flow rate of the drug within hose 2. The electronic expansion valve converts the target flow rate signal into a corresponding valve opening control value and sends a pulse signal to the motor, which rotates the motor by a fixed angle. The motor is connected to the valve core of the electronic expansion valve via a screw-nut transmission mechanism.

[0063] If the current flow rate is lower than the target flow rate, the motor rotates forward, the screw rotates synchronously, the nut drives the valve core to move outward, the valve port of the electronic expansion valve gradually expands, and the flow area of ​​the liquid in the hose 2 is increased, so that the current flow rate increases to the target flow rate;

[0064] If the current flow rate is greater than the target flow rate, the motor will reverse, the valve core will move inward, the valve will shrink, and the flow area of ​​the liquid in the hose 2 will be reduced, so that the current flow rate is reduced to the target flow rate.

[0065] The veterinary enema device based on adaptive flow rate control provided by an embodiment of the present invention includes a control system and a sensing system, wherein the sensing system is used to collect real-time sensing signals from the bottom of the medicine filling container and the front end of the anal canal, and the real-time sensing signals include the temperature signal and pressure signal of the liquid; the computing unit receives the real-time sensing signals uploaded by the sensing system, and calculates the target flow rate according to a preset flow rate calculation model; the electronic expansion valve contracts or relaxes based on the target flow rate to achieve real-time regulation of the flow rate of the medicine in the hose. The computing unit of the present invention calculates the flow rate according to a preset algorithm, and uses the electronic expansion valve to change the cross-sectional area of ​​the liquid in the hose, thereby achieving adaptive flow rate control, which can meet different enema needs. It is conducive to the uniform distribution of the medicine in the intestine, further improving the accuracy and safety of enema treatment.

[0066] Furthermore, in order to better monitor the enema process, based on the enema device of the aforementioned embodiment, the control system can also include a human-computer interaction module, which can realize functions including data display, menu selection, parameter setting, alarm prompts, etc.

[0067] The data display can display real-time sensing signals (temperature and pressure), basic flow rate, and trend graphs calculated by the calculation unit. The trend graphs can show the changing patterns and trend directions of the parameters.

[0068] Parameter settings can flexibly adjust parameter setting values ​​so that the system can operate stably under various working conditions.

[0069] The alarm prompt can stop filling medicine when the real-time sensing signal and target flow rate exceed the safety threshold, and issue a danger warning to the staff, notifying the operator through sound, light, text, etc. so that timely measures can be taken.

[0070] The embodiment of the present invention can display data such as pressure, temperature, basic flow rate, trend chart, etc. in real time through the human-computer interaction module in the control system, which is convenient for operators to conduct subsequent analysis and provide data support for optimizing treatment plans and breeding management.

[0071] Next, combine Figure 6The control method of the veterinary enema based on adaptive flow rate control provided by the embodiment of the present invention is introduced. The control method can be applied to the enema provided by the above embodiment, such as Figure 6 As shown, the control method includes:

[0072] Step S01: Obtain initial parameters input by the user.

[0073] Specifically, the initial parameters can be set by the control system. The initial parameters include reference temperature, reference pressure, dimensions of the container and the anal canal 3, reference drug viscosity, etc. For example, the initial parameters can be set by clicking corresponding buttons on the interface of the human-computer interaction module in the control system.

[0074] Step S02: performing enema based on the initial parameters, and collecting real-time sensing signals during the enema process through the sensing system.

[0075] Specifically, after the initial parameters are set, enema administration is started, and the temperature signal and pressure signal of the liquid are obtained in real time through the pressure sensor 52 and the temperature sensor 51 in the sensing system.

[0076] In step S03, the calculation unit substitutes the real-time sensing signal into a preset flow rate calculation model to perform calculations to obtain a target flow rate.

[0077] Specifically, an adaptive flow rate control algorithm was constructed to calculate the optimal target flow rate based on real-time sensor signals. Furthermore, the calculation unit can generate trend graphs based on these real-time sensor signals. The human-computer interaction module displays parameter changes and trends, facilitating observation and recording by staff. Trend graphs include, but are not limited to, line graphs, bar graphs, and scatter plots.

[0078] The construction process of the flow velocity calculation model is as follows:

[0079] (1) Construct the basic flow rate calculation formula;

[0080] The basic flow rate V1 is calculated based on the pressure and temperature differences inside and outside the container. Assume that the real-time pressure measured by the sensor at the front end of the anal tube 3 is a1 and the temperature is t1; the real-time pressure measured by the sensor at the bottom of the container is a2 and the temperature is t2. The basic flow rate calculation expression is:

[0081]

[0082] Among them, k1 is the proportional constant of the basic flow rate, k2 and k3 are adjustment coefficients, and a ref is the reference pressure value, t ref is the reference temperature value.

[0083] (2) Construct the formula for the effect of drug viscosity:

[0084] Considering the effect of drug viscosity on flow rate control, an exponential function is used to adjust the basic flow rate to obtain the basic flow rate V2. The specific calculation expression is:

[0085]

[0086] Among them, μ current is the current drug viscosity, μ ref is the reference drug viscosity.

[0087] (3) Construct the calculation formula for dynamic adjustment items:

[0088] The dynamic adjustment item is calculated based on the real-time temperature and pressure of the liquid in the real-time sensing signal:

[0089]

[0090] Among them, k6 and k7 are adjustment parameters, τ represents the time parameter, a1 is the real-time pressure at the front end of the anal canal, and t is the temperature parameter. This is the ratio of the change in temperature to the change in time.

[0091] (4) Constructing an adaptive flow rate calculation formula (flow rate calculation model):

[0092] Calculate the target flow rate based on the calculated dynamic adjustment items, basic flow rate, etc.:

[0093]

[0094] Among them, V auto is the target flow rate, V2 is the basic flow rate, f(a, t) is the dynamic adjustment item, k4 and k5 are adjustment parameters, m is the length of the irrigating container, l is the length of the anal canal, c1 is the inner diameter of the anal canal, and c2 is the inner diameter of the irrigating container.

[0095] Step S04: outputting the target flow rate to the electronic expansion valve in the form of an electrical signal.

[0096] Specifically, the calculation unit outputs the calculated target flow rate to the electronic expansion valve in the form of an electrical signal, so that the electronic expansion valve controls the flow rate.

[0097] In step S05 , the electronic expansion valve contracts or relaxes according to the target flow rate to regulate the flow rate of the drug.

[0098] Specifically, the electronic expansion valve contracts and relaxes according to the target flow rate to control the flow rate of the drug.

[0099] Furthermore, in order to better ensure the safety of the enema process, the embodiment of the present invention combines Figure 7The control method of the veterinary enema based on adaptive flow rate control provided by the present invention is introduced as follows: Figure 7 As shown, before executing step S04 and outputting the target flow rate to the electronic expansion valve in the form of an electrical signal, the control method of the embodiment of the present invention.

[0100] Step S06: Determine whether the current real-time sensing signal and the target flow rate exceed a safety threshold.

[0101] Specifically, in order to judge special situations, a blocking discriminant is constructed so that the controller can respond to special situations in a timely manner. The blocking discriminant is:

[0102]

[0103] Among them, k8~k 13 To adjust the parameters, V auto is the target flow rate, V min 、V max They represent the minimum flow rate threshold and the maximum flow rate threshold respectively, t1 is the real-time temperature at the front end of the anal canal, t min , t max They represent the maximum temperature threshold and the minimum temperature threshold respectively, a1 is the real-time pressure at the front end of the anal canal, and a min 、a max Represent the minimum pressure threshold and the maximum pressure threshold respectively;

[0104] If the blocking criterion is not met, it means that the safety threshold has been exceeded, and step S07 can be executed, the controller automatically stops filling the medicine and issues a danger warning to the staff;

[0105] If the blocking criterion is satisfied, it is proved that the safety threshold is not exceeded, and step S04 can be continued to be executed, and the drug filling is carried out normally until the drug filling is completed.

[0106] In addition to manually judging whether the enema is completed, a gas sensor can be set up on the perception system and judged based on the real-time perception signal of the gas sensor. If the gas sensor detects gas, it proves that the enema is completed. At this time, the electronic expansion valve is closed, and the human-computer interaction module can remind the staff that the enema is completed through text, sound, and light.

[0107] The adaptive flow rate control method for a veterinary enema device provided by the present invention uses a built-in blocking discriminant to enable the controller to respond promptly to special circumstances and terminate the enema operation when necessary. This method helps ensure the safety of cattle during the enema process, enhances the intelligent operation level, and improves the overall stability of the enema device.

[0108] Finally, it should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of additional identical elements in the process, method, article, or device comprising the element.

[0109] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0110] The above description of the disclosed embodiments is intended to enable one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not limited to the embodiments shown herein but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A veterinary enema based on adaptive flow rate control, characterized in that: include: Medicine filling container, hose, anal tube, control system and sensing system; the control system includes an input module and a controller, and the controller includes an input module, a computing unit and an electronic expansion valve; The medicine filling container is used to hold medicine; The sensing system is used to collect real-time sensing signals from the bottom of the medicine filling container and the front end of the anal canal, and the real-time sensing signals include temperature signals and pressure signals of the liquid; The input module is used to obtain initial parameters input by the user; The calculation unit receives the real-time sensing signal uploaded by the sensing system and calculates the target flow rate according to a preset flow rate calculation model; The electronic expansion valve contracts or relaxes based on the target flow rate, thereby achieving real-time regulation of the flow rate of the drug in the hose.

2. The veterinary enema device based on adaptive flow rate control according to claim 1, characterized in that: The sensing system includes a temperature sensor and a pressure sensor; The temperature sensor is used to collect the temperature of the liquid at the bottom of the medicine filling container and the front end of the anal canal in real time, and convert the temperature signal into an electrical signal; The pressure sensor is used to collect the pressure of the liquid at the bottom of the medicine filling container and the front end of the anal canal in real time, and convert the pressure signal into an electrical signal.

3. The veterinary enema device based on adaptive flow rate control according to claim 1, characterized in that: The medicine filling container includes an inner layer and an outer layer; The inner layer is made of polypropylene; The outer layer is made of polyurethane foam.

4. The veterinary enema device based on adaptive flow rate control according to claim 1, characterized in that: The control system further includes: a human-computer interaction module; The human-computer interaction module is used to display the real-time sensing signal, the basic flow rate, and the trend graph calculated by the calculation unit.

5. The veterinary enema device based on adaptive flow rate control according to claim 4, characterized in that: The human-computer interaction module is also used to stop the injection of medicine and issue a danger warning to the staff when the real-time sensing signal and the target flow rate exceed the safety threshold.

6. The veterinary enema device based on adaptive flow rate control according to claim 1, characterized in that: The electronic expansion valve contracts or relaxes based on the target flow rate to achieve real-time control of the flow rate of the drug in the hose, including: The electronic expansion valve converts the signal value of the target flow rate into the corresponding opening control value of the valve port and sends a pulse signal to the motor. The pulse signal causes the motor to rotate a fixed angle. The motor is connected to the valve core of the electronic expansion valve through a screw nut transmission mechanism. If the current flow rate is lower than the target flow rate, the motor rotates forward, the screw rotates synchronously, the nut drives the valve core to move outward, the valve port of the electronic expansion valve gradually expands, and the flow area of ​​the liquid in the hose is increased, so that the current flow rate increases to the target flow rate; If the current flow rate is greater than the target flow rate, the motor will reverse, the valve core will move inward, the valve will shrink, and the flow area of ​​the liquid in the hose will be reduced, so that the current flow rate will be reduced to the target flow rate.

7. The veterinary enema device based on adaptive flow rate control according to any one of claims 1 to 6, characterized in that: Also includes: The filter comprises a filter screen.

8. A veterinary enema control method based on adaptive flow rate control, characterized in that: The veterinary enema device according to any one of claims 1 to 7, wherein the control method comprises: Get the initial parameters entered by the user; Perform enema based on the initial parameters, and collect real-time sensing signals during the enema process through the sensing system, wherein the real-time sensing signals include temperature signals and pressure signals of the liquid; The calculation unit substitutes the real-time sensing signal into the preset flow rate calculation model to calculate the target flow rate, and outputs the target flow rate to the electronic expansion valve in the form of an electrical signal; The electronic expansion valve contracts or relaxes according to the target flow rate to regulate the flow rate of the drug.

9. The veterinary enema control method based on adaptive flow rate control according to claim 8, characterized in that: The calculation unit substitutes the real-time sensing signal into a preset flow rate calculation model to calculate and obtain the target flow rate, including: The dynamic adjustment item is calculated based on the real-time temperature and pressure of the liquid in the real-time sensing signal: Among them, k6 and k7 are adjustment parameters, τ represents the time parameter, a1 is the real-time pressure at the front end of the anal canal, and t is the temperature parameter; Calculate the target flow rate based on the calculated dynamic adjustment item: Among them, V auto is the target flow rate, V2 is the basic flow rate, f(a, t) is the dynamic adjustment item, k4 and k5 are adjustment parameters, m is the length of the irrigating container, l is the length of the anal canal, c1 is the inner diameter of the anal canal, and c2 is the inner diameter of the irrigating container.

10. The veterinary enema control method based on adaptive flow rate control according to claim 8, characterized in that: Before the calculation unit outputs the target flow rate in the form of an electrical signal to the electronic expansion valve, the control method further includes: Based on the preset blocking discriminant, it is determined whether the current real-time sensing signal and the target flow rate exceed the safety threshold. The blocking discriminant is: Among them, k8~k 13 To adjust the parameters, V auto is the target flow rate, V min 、V max They represent the minimum flow rate threshold and the maximum flow rate threshold respectively, t1 is the real-time temperature at the front end of the anal canal, t min , t max They represent the maximum temperature threshold and the minimum temperature threshold respectively, a1 is the real-time pressure at the front end of the anal canal, and a min 、a max Represent the minimum pressure threshold and the maximum pressure threshold respectively; If the safety threshold is exceeded, the injection will be stopped and a danger warning will be issued to the staff; If the safety threshold is not exceeded, the target flow rate is output to the electronic expansion valve in the form of an electrical signal, and the filling is carried out normally until the filling is completed.

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