Local administration device for oral medicine treatment and control method thereof

Abstract

The embodiment of the invention provides a local drug delivery device for oral medicine treatment and a control method of the local drug delivery device, and relates to the technical field of oral treatment equipment. The device comprises a tube body, the surface of which is provided with a holding part; the medicine storage tube is arranged in the tube body in a sleeving manner and is used for storing liquid medicine; the medicine injection tube is fixedly connected with one end of the medicine storage tube and is used for injecting the medicine in the medicine storage tube into a target area of the oral cavity; the control system comprises a control switch, a control valve and a monitoring device, the control switch is in signal connection with the control valve and used for controlling opening and closing of the control valve, and under the condition that the control valve is opened, medicine in the medicine storage pipe enters the medicine injection pipe; the monitoring device comprises a plurality of micro sensors arranged on the pipe walls of the medicine storage pipe and the medicine injection pipe and used for monitoring medicine entering the medicine injection pipe. According to the invention, the problem of low medicine injection control precision is solved, so that the effect of improving the medicine injection control precision is achieved.

Description

TECHNICAL FIELD

[0001] The embodiment of the present application relates to the field of oral treatment equipment, in particular to a local administration device for oral medical treatment and a control method thereof. BACKGROUND

[0002] In the clinical treatment of oral medicine, local administration is a core treatment method, which is widely used in periodontitis, root canal treatment, oral mucosa disease, peri-implantitis and other diseases.

[0003] The local administration device currently used in the clinic has relatively simple structure and function, and mostly depends on the manual control of the operator. For example, a syringe with an elongated needle is used for bolus injection, or a manually pressurized flushing device is used. These traditional devices have a series of inherent defects that are difficult to overcome in operation. First, the parameters of the administration process, especially the injection speed and pressure, completely depend on the personal experience and feeling of the operator, lack objective quantitative standards, and lead to difficulty in standardizing and repeating the treatment effect. Different doctors, even the same doctor at different times, can produce significant differences, affecting the injection accuracy. SUMMARY

[0004] The embodiment of the present application provides a local administration device for oral medical treatment and a control method thereof, to at least solve the problem of low injection control accuracy in the related art.

[0005] According to an embodiment of the present application, a local administration device for oral medical treatment is provided, comprising: a tube body, the surface of the tube body is provided with a holding portion; a medicine storage tube, which is sleeved in the tube body and stores liquid medicine; a medicine injection tube, which is fixedly connected to one end of the medicine storage tube and used for injecting the medicine in the medicine storage tube to the target area of the oral cavity; a control system, which comprises a control switch, a control valve and a monitoring device, the control switch is signal connected with the control valve, used for controlling the opening and closing of the control valve, and in the case that the control valve is opened, the medicine in the medicine storage tube enters the medicine injection tube; the monitoring device comprises a plurality of micro sensors arranged on the tube wall of the medicine storage tube and the medicine injection tube, used for monitoring the medicine entering the medicine injection tube.

[0006] In an exemplary embodiment, the tube body is provided with an electronic screen, which is signal connected with the monitoring system, used for monitoring the medicine injection condition.

[0007] In an exemplary embodiment, the end of the tube body close to the medicine injection tube is provided with a shadowless illumination lamp.

[0008] In one exemplary embodiment, the injection tube includes a main tube and an action tube, wherein the included angle between the main tube and the action tube is greater than 90°.

[0009] In an exemplary embodiment, the actuating tube includes a fixing member and an actuating member. The end of the fixing member away from the main tube is disposed on a positioning block. The end of the actuating member near the fixing member is provided with a mounting member. The mounting member has a slot, an adapter groove, and a positioning groove. The end of the slot is connected to the adapter groove. The positioning groove is connected to the end of the adapter groove away from the positioning groove, and the extending direction of the positioning groove is opposite to that of the slot. The positioning block slides along the slot to the opening of the adapter groove, and then the actuating member is rotated to make the positioning block slide along the adapter groove to the positioning groove.

[0010] According to another embodiment of the present invention, a method for controlling a local drug delivery device for oral medicine treatment is provided, comprising: The total pipeline pressure and current drug titration rate in the storage and injection tubes are obtained using miniature sensors. The current fluid pressure is determined based on the preset fluid pressure model and the current drug titration rate; Based on the total tubing pressure and the current fluid pressure, the treatment back pressure of the target area in the oral cavity is determined, the target area including the area acted upon by the infusion tube; The drug titration rate is dynamically adjusted based on the treatment back pressure.

[0011] In one exemplary embodiment, dynamically adjusting the drug titration rate based on the therapeutic back pressure includes: The treatment back pressure is compared with a preset optimal treatment back pressure window to generate a deviation signal; Based on the deviation signal, the drug titration rate is dynamically adjusted to maintain the therapeutic back pressure within the optimal therapeutic back pressure window.

[0012] In one exemplary embodiment, after acquiring the total tubing pressure and current drug titration rate in the reservoir and infusion tubing via a microsensor, the method further includes: The temperature of the liquid medicine inside the storage tube and injection tube is obtained through a miniature sensor; The current fluid pressure is determined based on a preset fluid pressure model, the current drug titration rate, and the drug solution temperature.

[0013] According to yet another embodiment of the present invention, a computer-readable storage medium is also provided, wherein a computer program is stored therein, wherein the computer program is configured to perform the steps in any of the above method embodiments when executed.

[0014] According to yet another embodiment of the present invention, an electronic device is also provided, including a memory and a processor, wherein the memory stores a computer program and the processor is configured to run the computer program to perform the steps in any of the above method embodiments.

[0015] By means of this invention, the injection process can be precisely controlled through a control system, thus solving the problem of low injection control accuracy and achieving the effect of improving injection control accuracy. Attached Figure Description

[0016] Fig. 1 This is a schematic diagram of a local drug delivery device for oral medicine treatment according to an embodiment of the present invention; Fig. 2 This is a partial structural diagram according to an embodiment of the present invention.

[0017] In the diagram, 1. Tube body; 2. Injection tube; 21. Main tube; 22. Action tube; 221. Fixing component; 222. Action component; 223. Positioning block; 224. Slot; 225. Adapter slot; 226. Positioning slot; 3. Shadowless illumination lamp; 4. Electronic screen. Detailed Implementation

[0018] The technical solutions of the embodiments of this application will be described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments.

[0019] In the following description, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0020] Furthermore, in this application, directional terms such as "upper," "lower," "left," and "right" may be defined relative to the orientation of the components shown in the accompanying drawings. It should be understood that these directional terms can be relative concepts, used for relative description and clarification, and may change accordingly depending on the orientation of the components in the accompanying drawings.

[0021] In this application, unless otherwise expressly specified and limited, the term "connection" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral part; it can be a direct connection or an indirect connection through an intermediate medium. Furthermore, the term "coupled" can refer to an electrical connection that enables signal transmission.

[0022] As used herein, “about,” “approximately,” or “approximately” includes the stated value and the average value within an acceptable range of deviation from the given value, wherein the acceptable range of deviation is determined by a person skilled in the art taking into account the measurement under discussion and the error associated with the measurement of the given quantity (i.e., the limitations of the measurement system).

[0023] This embodiment provides a local drug delivery device for oral medicine treatment, such as... Figs. 1-2 As shown, it includes a tube body 1 for holding, a drug storage tube that is sleeved and fixed inside the tube body 1 for storing liquid drugs, and an injection tube 2 that extends out of the tube body 1 and is fixed to one end of the drug storage tube.

[0024] The tube body 1 is made of medical-grade polycarbonate (PC) material. The length of the tube body 1 is preferably set to 15-20cm and the diameter to 2-3cm, which conforms to the hand gripping habits of most medical staff and facilitates long-term operation. The surface of the tube body 1 is provided with a grip part, which is made of non-slip rubber material and is integrally molded with the tube body 1 through injection molding. The surface of the non-slip rubber has evenly distributed diamond-shaped patterns with a pattern depth of 0.5-1mm, which can effectively increase the friction between the hand and the grip part and prevent slipping due to hand sweat or drug contamination during operation.

[0025] The drug reservoir is made of a replaceable material and can be removed from the tube body 1 after a period of use. It is made of medical-grade glass or polypropylene (PP) material. The capacity of the drug reservoir is designed to be 5-20mL according to treatment needs. One end of the drug reservoir is connected to a miniature peristaltic pump or piezoelectric pump for drug injection.

[0026] The injection tube 2 is made of medical-grade stainless steel or polytetrafluoroethylene (PTFE) material. The injection tube 2 includes a main tube 21 and an action tube 22. The main tube 21 is used to connect to the drug reservoir tube, and the action tube 22 is used to inject the drug in the drug reservoir tube into the target area of ​​the oral cavity. The end of the action tube 22 away from the main tube 21 can be set as a spherical spray or a needle, depending on the requirements. The spherical spray is set with a porous structure, which can atomize the drug solution into fine particles (5-10μm in diameter), so that the drug solution can be evenly sprayed on the surface of the oral mucosa. The needle is set with a sharp needle tip structure, which can penetrate the oral mucosal tissue and inject the drug into deep tissues (such as periodontal pockets, pulp chambers, etc.).

[0027] The infusion tube 2 includes a main tube 21 and an action tube 22. The main tube 21 is used to connect to the drug reservoir tube, and the action tube 22 is used to deliver the drug to the target area in the oral cavity. The main tube 21 is 5-8 cm long and has an inner diameter of 1-2 mm. The action tube 22 is 3-5 cm long and has an inner diameter of 0.5-1.5 mm, designed according to the drug type and administration method, to ensure that the drug can be delivered to the treatment area at an appropriate speed and form (such as spray or jet). In particular, to facilitate drug injection at different locations, the included angle between the main tube 21 and the action tube 22 is greater than 90°. Preferably, the included angle is set to... The angle is set to 120° or 135° to make it easier for the tube 22 to reach treatment areas deep in the oral cavity (such as the distal surface of molars, lingual gingiva, etc.). It is easy to understand that the target area in the oral cavity can be the periodontal surface or muscle, the oral surface or muscle, etc., depending on the purpose. The tube body 1 is provided with a grip part, which is made of anti-slip material such as an anti-slip pad. The tube body 1 can be made of metal, plastic, or a mixture of materials, which is not limited here. The injection tube 2 and the storage tube can be integrally formed, welded, or fixedly connected by a quick-release structure, which is not limited here.

[0028] Since existing drug delivery devices rely on human eyes to observe the scale for drug delivery and use push tubes to push and press each other to deliver the drug, this method is prone to misjudgment of the drug delivery status due to human visual observation errors. On the other hand, it is also easy for the drug delivery progress or amount to be inaccurately controlled because the control of the push by hand varies from person to person. Therefore, this application sets a control system in the tube body 1 to achieve precise control of drug delivery.

[0029] Specifically, the control system includes a processor, a control switch, a control valve, and a monitoring device. The processor is communicatively connected to the control switch, control valve, and monitoring device via signal lines. The control switch and the control valve are connected via the processor signal to control the opening and closing of the control valve. When the control valve is open, the drug in the storage tube enters the injection tube 2. The control valve is an electromagnetic control valve installed on the connecting pipe between the storage tube and the injection tube 2, with a diameter of 1-2 mm to ensure smooth drug passage. The monitoring device is used to monitor the drug entering the injection tube 2 and collect drug liquid data during the injection process. Specifically, it includes several devices installed on the storage tube and the injection tube. The tube 2 contains several miniature sensors on its wall and an electronic screen 4 mounted on the tube body 1. Both the miniature sensors and the electronic screen 4 are communicatively connected to a microprocessor. The miniature sensors are arranged in a sensor array along the direction of drug flow to acquire drug flow data at different locations. For example, several miniature pressure sensors are placed on the upstream portion of the tube wall of the drug storage tube and the injection tube 2 (e.g., the tube wall at the outlet of the drug storage tube and / or the base tube wall of the injection tube 2), and so on. The miniature sensors can be various types of sensors such as pressure sensors, flow sensors, and temperature sensors. The flow sensor is set as a miniature turbine flow sensor with a measurement range of 0.1-10 mL / min and an accuracy of ±2%. The FS (Fluid Sensor) can detect the injection rate of the drug (i.e., the drug titration flow rate) in real time. The pressure sensor is the same model as the pressure sensor on the drug reservoir tube, and can detect the drug pressure in the injection tube 2 in real time. Working in conjunction with the pressure sensor on the drug reservoir tube, it monitors the pressure status of the entire pipeline system, ensuring the safety and stability of the drug delivery process. The electronic screen 4 can be an LCD or OLED screen, which displays key treatment parameters to the operator in real time, such as the current treatment back pressure, drug titration flow rate, and injected dose, presenting the complex control process in intuitive graphical or digital form. It should be noted that the processor preprocesses the received real-time data, including data filtering and outlier removal, to remove noise and interference, ensuring the accuracy and reliability of the data. For example, a moving average filtering algorithm is used to filter the collected pressure and flow data to reduce the impact of random noise; by setting specific thresholds, data that significantly exceeds the normal range (such as abnormally high or low values ​​caused by sensor malfunction) is removed to avoid abnormal data interfering with the control process.

[0030] Specifically, when the control switch is pressed, the micro peristaltic pump starts and the control valve opens. Then, the liquid medicine in the storage tube is pushed into the injection tube 2 by the micro peristaltic pump, and then sprayed into the target area of ​​the oral cavity through the main tube 21 and the action tube 22 in sequence. At the same time, the micro sensor collects data such as speed and temperature during the injection process. The processor then processes this data and displays it on the electronic screen 4. When the control switch is released, the control switch sends a stop signal to the micro processor. The micro processor controls the micro peristaltic pump to stop working and closes the control valve to stop the drug delivery, thereby achieving precise monitoring of the injection process.

[0031] Currently, only a bulb sprayer is needed for injecting medication into the periodontal tissue or oral surface, while a syringe is required for injecting medication into the muscle. To accommodate different injection needs, the action tube 22 can be disassembled into a fixing member 221 and an action member 222. The end of the action member 222 away from the fixing member 221 is fixedly connected to the aforementioned syringe or bulb sprayer (preferably integrally formed), and the end of the fixing member 221 away from the action member 222 is fixedly connected to the main tube 21 (preferably integrally formed). The end of the fixing member 221 away from the main tube 21 is located on the positioning block 223, and the end of the action member 222 near the fixing member 221 is provided with a mounting block 223. The mounting component includes a slot 224, an adapter groove 225, and a positioning groove 226. The end of the slot 224 is connected to the adapter groove 225, and the positioning groove 226 is connected to the end of the adapter groove 225 away from the positioning groove 226. The extension direction of the positioning groove 226 is opposite to that of the slot 224. When replacement installation is required, the positioning block 223 is slid along the slot 224 to the opening of the adapter groove 225, and then the actuating member 222 is rotated to make the positioning block 223 slide along the adapter groove 225 to the positioning groove 226, thereby realizing the installation and fixation of the actuating member 222 and the fixing member 221.

[0032] In addition, since the oral cavity is a semi-closed environment, a shadowless lamp 3 can be fixed at one end of the tube body 1 near the injection tube 2 to facilitate observation of the oral cavity. The shadowless lamp 3 is hinged to the end of the tube body 1 through a spherical base to achieve adjustment of the irradiation angle. The shadowless lamp 3 includes several high-brightness LED beads with a power of 1-2W and a luminous intensity of 500-800lm. At the same time, the shadowless lamp 3 adopts a low-power design and is powered by the lithium battery inside the device, which has a long battery life and avoids affecting the normal use of the device.

[0033] Because the drug delivery speed is relatively fast under the action of a micro-peristaltic pump, in order to improve the accuracy of drug delivery control, this embodiment provides a method for controlling a local drug delivery device in oral medicine treatment. The method includes the following steps: Step S11: Obtain the total pipeline pressure and current drug titration rate in the drug storage tube and drug injection tube 2 using a micro sensor; In this embodiment, when the drug solution flows through the internal pipelines such as the drug storage tube, control valve, and injection tube 2, a certain pressure is generated in the pipeline due to the viscosity effect and tube wall friction. This pressure is related to factors such as the flow rate of the drug solution (i.e., the drug titration flow rate Q) and the viscosity of the drug solution itself. Therefore, the spherical spray nozzle or syringe is first placed in an open environment (e.g., towards a collection cup) to ensure that there is no back pressure at the injection port; subsequently, the processor will automatically apply the drug solution at N different preset calibrated flow rates (e.g., from...). arrive Step A brief injection was administered; subsequently, for each calibrated flow rate... First, wait for the pipeline pressure to reach a stable state, then use a miniature sensor to measure and record this stable pressure value. Since it is in an unloaded state, the back pressure is zero, therefore the measured pipeline pressure is... That is, the flow rate. Fluid pressure .

[0034] After calibration, a dataset containing N pairs of data can be obtained. The dataset is then processed by performing a mathematical fit on it to generate a dataset that can describe... and Functions or lookup tables relating the two: .

[0035] In particular, considering that the viscosity of the liquid medicine changes with temperature, thus affecting the fluid pressure, a miniature sensor can be used to simultaneously record the temperature of the liquid medicine at each calibration point. Thus, the dataset becomes This leads to a multivariable fluid pressure model: .

[0036] During the injection process, the control system enters a real-time monitoring state. For example, the micro-sensor continuously measures the total pressure TCP(t) and the drug temperature T(t) in the fluid pipeline at a high sampling frequency (e.g., 100Hz). The total pressure is the superposition of the fluid pressure and the treatment back pressure generated by the downstream lesion.

[0037] Specifically, the processor sends a read command to the aforementioned miniature pressure sensor. The miniature pressure sensor converts the pressure sensed by its internal pressure-sensing element (such as a piezoresistive Wheatstone bridge) into an analog voltage signal. After internal amplification and analog-to-digital conversion (ADC), a high-precision digital pressure value is sent to the processor via digital communication protocols such as I2C or SPI, thereby obtaining the current total pipeline pressure TCP(t). Similarly, the current drug solution temperature T(t) can be obtained. At the same time, the processor sends a pulse signal of a specific frequency to the miniature peristaltic pump. This frequency corresponds to the drug titration rate Q(t), thereby obtaining the drug titration rate Q(t).

[0038] Step S12: Determine the current fluid pressure based on the preset fluid pressure model and the current drug titration flow rate; In this embodiment, after obtaining the real-time drug titration flow rate Q(t) (and optionally the temperature T(t)), the processor substitutes the real-time parameters into a pre-built fluid pressure model. or To calculate the pressure components generated by the fluid flow. .

[0039] Step S13: Based on the total tubing pressure and the current fluid pressure, determine the treatment back pressure of the target area in the oral cavity, the target area including the area acted upon by the injection tube; In this embodiment, according to the principle of fluid pressure superposition, the total pipeline pressure is equal to the sum of the fluid dynamic pressure and the treatment back pressure: Therefore, treatment of back pressure TBP can be achieved: .

[0040] Step S14: Dynamically adjust the drug titration rate based on the treatment back pressure.

[0041] In this embodiment, firstly, it is necessary to set an optimal therapeutic back pressure window for TBP. This window can be determined individually by performing a brief diagnostic injection before the formal injection (analyzing the inflection point of the decoupled TBP response curve), or a standard range can be preset for different types of diseases based on clinical experience (for example, for periodontal pockets, it is set to [5kPa, 8kPa]).

[0042] Subsequently, a PID controller was employed for real-time decoupling. As a process variable, the target value within the optimal therapeutic back pressure window (e.g., a central value of 6.5 kPa) is used as the setpoint to dynamically calculate the optimal drug titration rate Q(t). The PID controller automatically and continuously adjusts the value of Q(t) based on the deviation between the TBP and the target value to drive the TBP to remain stable within the set window. For example, when the TBP exceeds the upper limit of the window, an emergency deceleration or shutdown prompt is issued, and the user then performs corresponding actions based on the prompt, thereby achieving automated assistance and semi-automatic control of drug injection.

[0043] Specifically, for PID controllers: Process variable (PV): The therapeutic back pressure TBP(t) calculated in real time with decoupling; Set point (SP): The target value of the optimal treatment back pressure window (e.g., 6.5 kPa); Control output: The drug titration flow rate Q(t) that needs to be dynamically adjusted.

[0044] Based on this, the PID controller performs the following operations in each control cycle: 1. Calculate the current deviation: .

[0045] 2. Based on the PID algorithm ( ), and calculate a new, ideal drug titration flow rate Q(t).

[0046] 3. The processor converts the Q(t) value into a precise control signal for the micro peristaltic pump and control valve, and provides control prompts in the next cycle to adjust the flow rate.

[0047] For example, when TBP(t) = 9 kPa (exceeding the upper limit), E(t) = 2.5 kPa, the PID algorithm outputs a negative adjustment amount to reduce the injection speed, causing TBP(t) to gradually decrease to the optimal range; when TBP(t) = 4 kPa (below the lower limit), E(t) = -2.5 kPa, the PID algorithm outputs a positive adjustment amount to increase the injection speed, causing TBP(t) to gradually increase to the optimal range, and so on.

[0048] Through the above description of the embodiments, those skilled in the art can clearly understand that the methods according to the above embodiments can be implemented by means of software plus necessary general-purpose hardware platforms. Of course, they can also be implemented by hardware, but in many cases the former is a better implementation method. Based on this understanding, the technical solution of the present invention, in essence, or the part that contributes to the prior art, can be embodied in the form of a software product. This computer software product is stored in a storage medium (such as ROM / RAM, magnetic disk, optical disk), and includes several instructions to cause a terminal device (which may be a mobile phone, computer, server, or network device, etc.) to execute the various embodiments of the present invention. It should be noted that the above modules can be implemented by software or hardware. For the latter, they can be implemented in the following ways, but are not limited to: all the above modules are located in the same processor; or, the above modules are located in different processors in any combination.

[0049] Embodiments of the present invention also provide a computer-readable storage medium storing a computer program, wherein the computer program is configured to perform the steps in any of the above method embodiments when executed.

[0050] In one exemplary embodiment, the aforementioned computer-readable storage medium may include, but is not limited to, various media capable of storing computer programs, such as a USB flash drive, read-only memory (ROM), random access memory (RAM), portable hard disk, magnetic disk, or optical disk.

[0051] Embodiments of the present invention also provide an electronic device including a memory and a processor, the memory storing a computer program and the processor being configured to run the computer program to perform the steps in any of the above method embodiments.

[0052] In one exemplary embodiment, the electronic device may further include a transmission device and an input / output device, wherein the transmission device is connected to the processor and the input / output device is connected to the processor.

[0053] Through the above description of the embodiments, those skilled in the art can clearly understand that, for the sake of convenience and brevity, only the division of the above functional modules is used as an example. In actual applications, the above functions can be assigned to different functional modules as needed, that is, the internal structure of the device can be divided into different functional modules to complete all or part of the functions described above.

[0054] In the several embodiments provided in this application, it should be understood that the disclosed apparatus and methods can be implemented in other ways. For example, the apparatus embodiments described above are merely illustrative; for instance, the division of modules or units is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another apparatus, or some features may be ignored or not executed. Furthermore, the mutual coupling or direct coupling or communication connection shown or discussed may be through some interfaces; the indirect coupling or communication connection between apparatuses or units may be electrical, mechanical, or other forms.

[0055] The units described as separate components may or may not be physically separate. A component shown as a unit can be one or more physical units; that is, it can be located in one place or distributed in multiple different locations. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0056] Furthermore, the functional units in the various embodiments of this application can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit. The integrated unit can be implemented in hardware or as a software functional unit.

[0057] If the integrated unit is implemented as a software functional unit and sold or used as an independent product, it can be stored in a readable storage medium. Based on this understanding, the technical solutions of the embodiments of this application, in essence, or the parts that contribute to the prior art, or all or part of the technical solutions, can be embodied in the form of a software product. This software product is stored in a storage medium and includes several instructions to cause a device (which may be a microcontroller, chip, etc.) or processor to execute all or part of the steps of the methods of the various embodiments of this application. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks.

[0058] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any changes or substitutions within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A local drug delivery device for oral medicine treatment, characterized in that, The application relates to an oral cavity medicine treatment local administration device, which comprises the following parts: a tube body, the surface of the tube body being provided with a holding part; a medicine storage tube, which is sleeved in the tube body and stores liquid medicine; a medicine injection tube, which is fixedly connected with one end of the medicine storage tube and is used for injecting the medicine in the medicine storage tube into a target area in the oral cavity; a control system, which comprises a control switch, a control valve and a monitoring device, the control switch being signal-connected with the control valve and being used for controlling the opening and closing of the control valve, the medicine in the medicine storage tube entering the medicine injection tube when the control valve is opened, and the monitoring device comprising a plurality of micro sensors arranged on the tube walls of the medicine storage tube and the medicine injection tube and being used for monitoring the medicine entering the medicine injection tube.

2. The device for local administration of an intraoral medical treatment according to claim 1, characterized in that The tube body is provided with an electronic screen, which is signal-connected with the monitoring system and is used for monitoring the medicine injection condition.

3. The device for the local administration of an intraoral medical treatment according to claim 1, characterized in that The tube body is provided with a shadowless irradiation lamp at one end close to the medicine injection tube.

4. The device for the local administration of an intraoral medical treatment according to claim 1, characterized in that The medicine injection tube comprises a main tube and an action tube, and the included angle between the main tube and the action tube is greater than 90 degrees.

5. The device for the local administration of an intraoral medical treatment according to claim 4, characterized in that The action tube comprises a fixing part and an action part, one end of the fixing part away from the main tube is arranged on a positioning block, one end of the action part close to the fixing part is provided with a mounting part, the mounting part is internally provided with a slot, a switching slot and a positioning slot, the end of the slot is communicated with the switching slot, the positioning slot is communicated with one end of the switching slot away from the positioning slot, and the extension direction of the positioning slot is opposite to that of the slot; the positioning block slides along the slot to the slot opening of the switching slot, and then the action part is rotated to make the positioning block slide along the switching slot to the positioning slot.

6. A method of controlling a local administration device for intraoral medical treatment, characterized by, The application is applied to the oral cavity medicine treatment local administration device in any one of claims 1-5, which comprises the following parts: acquiring the total pipeline pressure and the current medicine titration flow rate in the medicine storage tube and the medicine injection tube through the micro sensor; determining the current fluid pressure based on the preset fluid pressure model and the current medicine titration flow rate; determining the treatment back pressure of the target area in the oral cavity based on the total pipeline pressure and the current fluid pressure, the target area comprising the area acted on by the medicine injection tube; dynamically adjusting the medicine titration flow rate based on the treatment back pressure.

7. The method of claim 6, wherein, The dynamically adjusting the medicine titration flow rate based on the treatment back pressure comprises the following steps: comparing the treatment back pressure with the preset optimal treatment back pressure window to generate a deviation signal; dynamically adjusting the medicine titration flow rate based on the deviation signal to maintain the treatment back pressure in the optimal treatment back pressure window.

8. The method of claim 6, wherein, After the total pipeline pressure and the current medicine titration flow rate in the medicine storage tube and the medicine injection tube are acquired through the micro sensor, the method further comprises the following steps: acquiring the medicine liquid temperature in the medicine storage tube and the medicine injection tube through the micro sensor; determining the current fluid pressure based on the preset fluid pressure model, the current medicine titration flow rate and the medicine liquid temperature.

9. A computer-readable storage medium, characterized in that, The computer readable storage medium stores a computer program, wherein the computer program is set to execute the method in any one of claims 1-5 when running. 10.An electronic device comprising a memory and a processor, the electronic device characterized by, The memory stores a computer program, and the processor is set to execute the computer program to execute the method in any one of claims 1-5.

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