CN114403957B - Pneumoperitoneum machine working mode automatic switching method, electronic equipment, device and pneumoperitoneum machine - Google Patents
Pneumoperitoneum machine working mode automatic switching method, electronic equipment, device and pneumoperitoneum machine Download PDFInfo
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Abstract
The invention discloses a pneumoperitoneum machine working mode automatic switching method, electronic equipment, a device and a pneumoperitoneum machine, belonging to the field of pneumoperitoneum machines, wherein the method comprises the steps of continuously acquiring an air pressure value at a first time interval in a blowing mode and a pressure stabilizing mode; in the pressure stabilizing mode, switching to a blowing mode when the air pressure value is smaller than a first preset value; and in the blowing mode, switching to a pressure stabilizing mode when the difference between the adjacent air pressure values is greater than a second preset value. The pneumoperitoneum machine working mode automatic switching method sets the time for switching the working mode of the pneumoperitoneum machine according to the characteristic of the change of the air pressure of the pneumoperitoneum machine after the air supply pipe is pulled out and inserted into a human body, so that the pneumoperitoneum machine can intelligently and accurately switch the working mode automatically in a proper scene without manual operation, and the number of things which need to be taken into consideration by a doctor in an operation is reduced.
Description
Technical Field
The invention relates to an automatic working mode switching method of a pneumoperitoneum machine, electronic equipment, a device and the pneumoperitoneum machine, and belongs to the field of pneumoperitoneum machines.
Background
The pneumoperitoneum machine in the prior art only has one working mode, namely pulse type air supply, when air is filled into a human body, the pneumoperitoneum machine is controlled according to the pressure set by a user so as to ensure that the air can support the human tissue and does not excessively support and hurt the human tissue, meanwhile, the maximum value of the air flow does not exceed a flow value set by the user, and the air pressure is periodically controlled in the period. This mode of operation in the prior art is referred to herein as the "regulated mode". In practical application, after the pneumoperitoneum machine is pulled out of a human body, in order to avoid gas remained in the pneumoperitoneum machine from polluting a gas source gas cylinder, a doctor needs to exhaust the original old air in a gas path of the pneumoperitoneum machine, at the moment, the gas pressure does not need to be controlled actually, the pressure stabilizing mode can control the gas pressure periodically, the next control can be carried out after the gas pressure is stabilized after a period of time is waited after each control, therefore, the output gas flow under the pressure stabilizing control is discontinuous, the condition that the waste gas in a pipeline is not exhausted to the greatest extent possibly exists, and the next operation is influenced. Now, a working mode capable of blowing air continuously outside the body, hereinafter referred to as "blowing mode" for short, is considered to be provided to solve the hidden trouble in the above-mentioned exhausting process. The blowing mode is just like the common blower which sets the flow and continuously blows. The difficulty is how to intelligently and automatically switch between the pressure stabilizing mode and the newly added blowing mode.
The air supply pipe of the pneumoperitoneum machine is pulled out of the human body without switching to the blowing mode, and old gas possibly remains in the pipeline of the pneumoperitoneum machine; the air supply pipe of the pneumoperitoneum machine is inserted into the human body in the blowing mode without switching to the pressure stabilizing mode, and the pneumoperitoneum machine continuously supplies air by neglecting air pressure, so that the human body can be injured.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides an automatic pneumoperitoneum machine working mode switching method, electronic equipment, a device and a pneumoperitoneum machine, which can intelligently and automatically switch the working mode of the pneumoperitoneum machine.
The technical scheme adopted by the invention for solving the technical problems is as follows:
in a first aspect, the present application provides a method for automatically switching operating modes of a pneumoperitoneum machine, including the following steps:
continuously acquiring air pressure values according to a first time interval in a blowing mode and a pressure stabilizing mode;
in the pressure stabilizing mode, when the air pressure value is smaller than a first preset value, switching to an air blowing mode;
in the blowing mode, when the difference between two adjacent air pressure values is greater than a second preset value, switching to a voltage stabilization mode;
the pressure stabilizing mode is to periodically regulate and control pressure so that the air pressure value meets the pressure set by a user; the blowing mode is continuous blowing.
The application provides a pneumoperitoneum machine working mode automatic switching method can be according to the working mode of atmospheric pressure change automatic switching pneumoperitoneum machine.
Optionally, in the blowing mode and the pressure stabilizing mode, the step of continuously obtaining the air pressure value at a first time interval includes:
in the blowing mode and the pressure stabilizing mode, continuously acquiring air pressure values according to a first time interval, sequencing a plurality of latest air pressure values according to the size, discarding the maximum value and the minimum value, and averaging the rest air pressure values to obtain a filtering air pressure value;
in the pressure stabilizing mode, the step of switching to the blowing mode when the air pressure value is smaller than a first preset value comprises the following steps:
in the pressure stabilizing mode, when the filtering air pressure value is smaller than a first preset value, switching to an air blowing mode;
in the blowing mode, when the difference between two adjacent air pressure values is greater than a second preset value, the step of switching to the voltage stabilization mode comprises the following steps:
in the blowing mode, when the difference between two adjacent filtering air pressure values is larger than a second preset value, the mode is switched to a voltage stabilizing mode.
The sensitivity of the air pressure sensors of various models is different, the latest air pressure values are averaged after the maximum value and the minimum value are removed, the judgment of switching the working modes can be avoided from being influenced by the fluctuation caused by the air pressure sensors, the working modes are prevented from being switched at improper time due to occasional data fluctuation, and the working modes are prevented from being frequently switched due to the data fluctuation.
Optionally, in the blowing mode, the step of switching to the steady mode when the difference between two adjacent air pressure values is greater than a second preset value includes:
in the blowing mode, when the difference between two adjacent air pressure values is greater than a second preset value or the air pressure value is greater than or equal to a third preset value, switching to a voltage stabilization mode; and the third preset value is that in the blowing mode, the air pressure value in the pipeline after the maximum flow is output is set to be +5 mmHg. If the detected air pressure value is larger than the pressure when the maximum flow is output, the air passage is proved to be blocked, and the air passage is judged to be inserted into the human body and converted into a pressure stabilizing mode.
Optionally, in the blowing mode, the step of switching to the steady mode when the difference between two adjacent air pressure values is greater than a second preset value includes:
in the blowing mode, the difference between two adjacent air pressure values is calculated to obtain a first difference value, and when five continuous first difference values are all larger than the second preset value, the mode is switched to a voltage stabilizing mode.
Optionally, in the blowing mode, the step of switching to the steady mode when the difference between two adjacent air pressure values is greater than a second preset value includes:
in the blowing mode, forcibly maintaining the blowing mode in two first time intervals after the pressure stabilizing mode is switched to the blowing mode; and after two first time intervals are passed after the pressure stabilizing mode is switched to the blowing mode, switching to the pressure stabilizing mode when the difference between two adjacent air pressure values is greater than a second preset value.
Each time the pressure stabilizing mode is switched to the blowing mode, the air pressure rises briefly, so that the monitoring of the air pressure fluctuation can omit the monitoring when the pressure stabilizing mode is switched to the blowing mode.
Optionally, the first preset value is 0.5 mmHg.
Optionally, the second preset value is 0.1 mmHg.
In a second aspect, the present application provides an electronic device comprising a processor and a memory, wherein the memory stores computer readable instructions, and the computer readable instructions, when executed by the processor, perform the steps of the method according to the first aspect. The pneumoperitoneum can automatically switch the working mode. The electronic device may further include a timer, the ADC converter.
In a third aspect, the present application provides an automatic switching device for operating modes of a pneumoperitoneum machine, comprising:
the first acquisition module is used for continuously acquiring air pressure values at a first time interval in a blowing mode and a pressure stabilizing mode;
the blowing mode switching module is used for switching to a blowing mode when the air pressure value is smaller than a first preset value in a pressure stabilizing mode;
the pressure stabilizing mode switching module is used for switching to a pressure stabilizing mode when the difference between two adjacent air pressure values is greater than a second preset value in the blowing mode;
the pressure stabilizing mode is to periodically regulate and control pressure so that the air pressure value meets the pressure set by a user; the blowing mode is continuous blowing.
In a fourth aspect, the application provides a pneumoperitoneum machine, which has two working modes, namely a pressure stabilizing mode and a blowing mode, wherein the blowing mode continuously supplies air according to the flow set by a user, and comprises a main body pipeline, and a proportional valve, a flow sensor and an air pressure sensor which are arranged in the main body pipeline, wherein one end of the main body pipeline is connected with an air source, the other end of the main body pipeline is connected with an air supply pipe, the proportional valve, the flow sensor and the air pressure sensor are all in signal connection with a main control chip, the air pressure sensor continuously measures air pressure values at first time intervals when the pneumoperitoneum machine is in the blowing mode or the pressure stabilizing mode, and sends air pressure information to the main control chip, and the main control chip receives the air pressure information; when the pneumoperitoneum machine is in the pressure stabilizing mode state and the air pressure value is smaller than a first preset value, the main control chip switches the working mode of the pneumoperitoneum machine to an air blowing mode; when the pneumoperitoneum machine is in the blowing mode state and the difference between two adjacent air pressure values is larger than a second preset value, the main control chip switches the working mode of the pneumoperitoneum machine to a pressure stabilizing mode;
the pressure stabilizing mode is to periodically regulate and control pressure so that the air pressure value meets the pressure set by a user; the blowing mode is continuous blowing.
The invention has the beneficial effects that: the pneumoperitoneum machine is provided with an air pressure sensor so as to adjust the amplitude for supporting human tissues, when an air supply pipe of the pneumoperitoneum machine is pulled out of a human body, the pipeline is free from blocking, the air pressure can be reduced to a certain level, when the air supply pipe of the pneumoperitoneum machine is inserted into the human body, the pipeline is blocked, and the continuous air supply of the pneumoperitoneum machine can lead the pressure to be higher and higher.
Additional features and advantages of the application will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by the practice of the application. The objectives and other advantages of the application may be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
Drawings
Fig. 1 is a schematic structural diagram of a pneumoperitoneum machine provided in an embodiment of the present application.
Fig. 2 is a schematic structural diagram of an automatic switching device for an operating mode of a pneumoperitoneum machine according to an embodiment of the present application.
Fig. 3 is a schematic structural diagram of an electronic device according to an embodiment of the present application.
Fig. 4 is a schematic diagram of the operational relationship between the input and output of the and gate.
Figure 5 is a schematic diagram of the operating logic of a pneumoperitoneum machine according to an embodiment of the present application.
Description of reference numerals: 1. a gas source; 201. a first acquisition module; 202. a blowing mode switching module; 203. a voltage stabilization mode switching module; 3. a proportional valve; 301. a processor; 302. a memory; 303. a communication bus; 4. a flow sensor; 5. a main body pipeline; 6. a main control chip; 7. an air pressure sensor; 9. an air supply pipe.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
The following disclosure provides many different embodiments or examples for implementing different features of the invention. To simplify the disclosure of the present invention, the components and arrangements of specific examples are described below. Of course, they are merely examples and are not intended to limit the present invention. Furthermore, the present invention may repeat reference numerals and/or letters in the various examples, such repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed.
The pressure stabilizing mode is to periodically regulate and control the pressure so that the air pressure value accords with the pressure set by a user, and is the original working mode of the pneumoperitoneum machine in the prior art. The blowing mode that this application was add is for blowing continuously, the purpose is to ensure to remove old gas. After the blowing mode is added, how to intelligently switch the two working modes becomes a problem to be solved, and after the air supply pipe of the pneumoperitoneum machine is pulled out of a human body, if the air supply pipe is not switched to the blowing mode, old gas cannot be completely exhausted. After the air supply pipe of the pneumoperitoneum machine is inserted into a human body, if the mode is not switched to the pressure stabilizing mode, the pneumoperitoneum machine continuously supplies air regardless of air pressure, so that human tissues are easy to burst, and the pneumoperitoneum machine is very dangerous.
Based on the technical problem, referring to fig. 1, the embodiment of the application provides a pneumoperitoneum machine, which has two working modes, namely a pressure stabilizing mode and a blowing mode, and can continuously blow in an in vitro mode, so that the inexhaustible air is avoided, and the risks such as pipeline pollution are reduced. The hardware comprises a main pipeline 5, and a proportional valve 3, a flow sensor 4 and an air pressure sensor 7 which are arranged in the main pipeline 5, wherein one end of the main pipeline 5 is connected with an air source 1, the other end of the main pipeline 5 is connected with an air supply pipe 9, the proportional valve 3, the flow sensor 4 and the air pressure sensor 7 are in signal connection with a main control chip 6, the air pressure sensor 7 continuously measures an air pressure value at a first time interval when the pneumoperitoneum machine is in a blowing mode or a pressure stabilizing mode, and sends air pressure information to the main control chip 6, and the main control chip 6 receives the air pressure information; when the pneumoperitoneum machine is in a stable pressure mode state and the air pressure value is smaller than a first preset value, the main control chip switches the working mode of the pneumoperitoneum machine into a blowing mode; when the pneumoperitoneum machine is in a blowing mode state and the difference between two adjacent air pressure values is larger than a second preset value, the main control chip switches the working mode of the pneumoperitoneum machine to a pressure stabilizing mode.
The first time interval may be 5 milliseconds to 10 milliseconds. The pneumoperitoneum machine allows a user to set flow and air pressure, so that the pneumoperitoneum machine is provided with the flow sensor 4 and the air pressure sensor 7, and the pneumoperitoneum machine applying the method does not need to greatly modify hardware. The barometric pressure sensor 7 needs to convert the barometric pressure into an electrical signal, and the error of the barometric pressure sensor 7 and the error of the barometric pressure converted into the electrical signal are considered together, and the first preset value is most preferably 0.5 mmHg.
When the air feed pipe of the pneumoperitoneum machine is pulled out of the human body, the pipeline is free from blocking, and the air pressure value is rapidly reduced until the air pressure value is reduced to the level of the conventional blowing mode. The condition of switching from the pressure stabilizing mode to the blowing mode is that the air pressure value is reduced to the level of the conventional blowing mode, and the air pressure value is not gradually reduced to be the switching condition, because in the pressure stabilizing mode, the pneumoperitoneum machine generally controls the air pressure value to be maintained near the air pressure value set by a user through PID (proportion integration differentiation) regulation, and the air pressure value floats up and down in the regulation process; on the other hand, the change of the body position of the patient in the operation process can also cause air leakage, so that the air pressure value is reduced, and the air pressure value does not belong to the time when the air blowing mode is switched, so that the switching condition of the invention is set to be that the air pressure value is reduced to the level when the air feeding pipe 9 of the pneumoperitoneum machine is not blocked. In this embodiment, after the pneumoperitoneum machine is pulled out of the human body, the air pressure is rapidly reduced, and when the next PID control is not started, the air pressure is lower than the first preset value. The first time interval is less than 1/2 of the PID control period, otherwise the gas pressure may be regulated again by the PID.
Based on the characteristic that when the air supply pipe of the pneumoperitoneum machine is inserted into a human body, the pipeline is blocked, and the continuous air supply of the pneumoperitoneum machine can lead the pressure to be higher and higher, the invention compares adjacent air pressure values, and sets the time for switching the air blowing mode into the pressure stabilizing mode when the difference between the two adjacent air pressure values is larger than a second preset value. It should be noted that the difference between two adjacent air pressure values is obtained by subtracting the previous air pressure value from the latest air pressure value, and when the air pressure increases, the difference is a positive value; when the air pressure is reduced, the difference value is a negative value, the second preset value is a positive value, and the working mode cannot be triggered to be switched when the air pressure is reduced.
Specifically, the main control chip 6 may use the STM32F103 series. Referring to fig. 4, two pins of the main control chip 6 are respectively connected to two input terminals, namely a first input terminal a and a second input terminal B, of an and gate, and an output terminal C of the and gate is connected to the proportional valve 3. The two pins of the main control chip 6 are respectively configured to be in a PWM mode and a single pulse mode; the pin connected to the first input a of the and gate is configured in PWM mode to control the flow, and the output PWM frequency is consistent with the control frequency of the proportional valve, in this embodiment 1.2K Hz is used. And a pin connected with a second input end B of the AND gate is configured to be in a single pulse mode for controlling air pressure, the pulse period is consistent with the period of the voltage stabilization control PID, the embodiment uses 500ms, and thus the adjustable range of the pulse width is 0-500 ms. The PWM mode and the single pulse mode in the above are two modes in a timer in an STM32 microcontroller, and belong to common concepts in the field of STM 32.
And then establishing a corresponding relation between the PWM duty ratio and the flow at a first input end A of the AND gate. For example, the relationship between the PWM duty ratio and the flow rate is found by actually measuring a set of PWM values corresponding to the flow rate and then fitting a polynomial. In order to improve the control precision, the PWM value range is 0-1000, wherein 0 corresponds to a low level, 1000 corresponds to a high level, and the duty ratio is 100%; the flow rate is expressed in L/min, and the measured data of the part are shown in the following table 1.
TABLE 1 correspondence of PWM to flow
A PWM duty ratio and flow corresponding curve can be fitted according to the data in the table 1, and the PWM can be adjusted according to the corresponding curve according to the flow which is required to be achieved when the flow is controlled.
The air flow of the air supply pipe 9 can be adjusted by controlling the duty ratio of the first input end A PWM; the air displacement can be controlled by controlling the high-level time of the pulse of the second input end B, and the pressure of the main pipeline 5 is controlled by combining the air pressure sensor 7.
The information read by the flow sensor 4 and the air pressure sensor 7 is transmitted to the main control chip 6, specifically: the flow sensor 4 and the air pressure sensor 7 respectively convert the flow and the pressure into corresponding voltage values, the main control chip 6 collects the corresponding voltage values through two ADC pins in the main control chip, and the corresponding voltage values are converted into corresponding flow values and pressure values according to corresponding formulas on specifications of the flow sensor and the air pressure sensor.
The method for the pneumoperitoneum machine to automatically switch the working mode to comply with the following steps:
in the blowing mode and the pressure stabilizing mode, air pressure values are continuously acquired at first time intervals.
In the pressure stabilizing mode, the air pressure value is switched to the air blowing mode when being smaller than a first preset value.
In the blowing mode, when the difference between two adjacent air pressure values is greater than a second preset value, the mode is switched to a voltage stabilizing mode.
Example 1
In the blowing mode and the pressure stabilizing mode, the air pressure values are obtained every 5ms, the latest 10 air pressure values are sorted according to the size, the largest 3 values and the smallest 3 values are abandoned, and the rest 4 air pressure values are averaged to obtain the filtering air pressure value.
In the pressure stabilizing mode, when the filtering air pressure value is less than 0.6mmHg, the mode is switched to the blowing mode.
In the blowing mode, when the difference between two adjacent filtering air pressure values is larger than 0.03mmHg, the mode is switched to the stable pressure mode.
The air pressure sensors 7 of various models have different sensitivities, and the latest air pressure values are averaged after the maximum value and the minimum value are removed, so that the judgment of switching the working modes due to the influence of fluctuation caused by the air pressure sensors 7 can be avoided. And avoid because of occasional data fluctuation leads to switching mode at improper opportunity, for example, under the mode of blowing, the blast pipe 9 swings the in-process and just blows to the wall at a certain moment, then because of the recoil effect keeps away from the wall, this process can record and get the atmospheric pressure value grow, after the data filtering, the filtering atmospheric pressure value does not change in fact, can make the opportunity of switching more intelligent from this.
Example 2
In the blowing mode and the pressure stabilization mode, the air pressure value is acquired every 8 ms.
In the pressure stabilizing mode, when the air pressure value is less than 0.4mmHg, the mode is switched to the blowing mode.
In the blowing mode, when the difference between two adjacent air pressure values is greater than 0.05mmHg or the air pressure value is greater than or equal to a third preset value, the mode is switched to a pressure stabilizing mode, and the third preset value is the sum of the air pressure value in the pipeline after the maximum flow output is set in the blowing mode and 5 mmHg. If the air pressure value detected in the blowing mode is larger than the air pressure value at the time of maximum flow output, the resistance is proved to exist in the pipeline, if the air pressure value is 5mmHg larger than the air pressure value at the time of maximum flow output, the resistance source is proved to be not a common obstacle to be blocked in front of the outlet of the air supply pipe 9, and the pressure stabilizing mode is supposed to be entered when the air supply pipe enters a closed environment.
Example 3
In the blowing mode and the pressure stabilization mode, the air pressure value is acquired every 10 ms.
In the pressure stabilizing mode, when the air pressure value is less than 0.4mmHg, the mode is switched to the blowing mode.
In the blowing mode, the difference between two adjacent air pressure values is calculated to obtain a first difference value, and the mode is switched to the stable pressure mode when five continuous first difference values are all larger than 0.02 mmHg.
When the air pipe 9 is inserted into the human body, the air pressure value will continuously rise, rather than rising twice, for example, in the case of inadvertently blowing to the wall in embodiment 1, the air pressure value will only rise briefly and then fall, and this situation should not be misjudged as the need to switch to the voltage stabilization mode. In this embodiment, if the pressure is continuously increased by 0.4mmHg for 50ms in the blowing mode, it is determined that there is resistance in the pipeline, and the pressure-stabilizing adjustment is turned on. The 50ms reaction is sensitive, and the air pressure fluctuation caused by the change of the orientation of the air supply pipe can be filtered.
Example 4
In the blowing mode and the pressure stabilizing mode, the air pressure value is acquired every 10 ms. Sorting the latest 10 air pressure values according to the size, discarding the largest two values and the smallest two values, and averaging the remaining 6 air pressure values to obtain the filtering air pressure value.
In the pressure stabilizing mode, the air blowing mode is switched when the filtering air pressure value is less than 0.5 mmHg.
In the blowing mode, the difference between two adjacent filtering air pressure values is calculated to obtain a first difference value, and when five continuous first difference values are all larger than 0.01mmHg or the air pressure value is larger than or equal to a third preset value of the pneumoperitoneum machine, the blowing mode is switched to a voltage stabilizing mode. Forcibly maintaining the air blowing mode within two first time intervals (20 ms) just after the pressure stabilizing mode is switched to the air blowing mode; and after two first time intervals are passed after the constant-pressure mode is switched to the blowing mode, switching to the constant-pressure mode when the difference between two adjacent air pressure values is greater than 0.01 mmHg.
After two-time filtering of abandoning the maximum value and the minimum value and continuously comparing five first difference values, the automatic switching working mode of the pneumoperitoneum machine becomes more intelligent, and the second preset value is set to be 0.01mmHg to improve the sensitivity of switching judgment. Because the pressure stabilizing adjustment can automatically increase air supply when the air pressure is low, the air pressure can rise for a short time when the pressure stabilizing mode is switched to the air blowing mode every time, and the monitoring when the air pressure is switched from the pressure stabilizing mode to the air blowing mode can be omitted by monitoring the air pressure fluctuation.
In the blowing mode, the main control chip 6 converts the flow set by the user into the duty ratio corresponding to the PWM through the corresponding relation of the fitting curve and applies the duty ratio to the first input end A of the AND gate, meanwhile, the second input end B of the AND gate inputs the high level of 100% of the duty ratio, and at the moment, the proportional valve 3 controls the air flow to output according to the value Q preset by the user. And simultaneously, continuously acquiring the air pressure value.
In the pressure stabilizing mode, the main control chip 6 combines the current air pressure value to call a PID algorithm (or a Darlin algorithm) to calculate the pulse width to be adjusted and apply the pulse width to the second input end B of the AND gate so as to control the air pressure.
Referring to fig. 3, fig. 3 is a schematic structural diagram of an electronic device according to an embodiment of the present disclosure, where the present disclosure provides an electronic device, including: the processor 301 and the memory 302, the processor 301 and the memory 302 being interconnected and communicating with each other via a communication bus 303 and/or other form of connection mechanism (not shown), the memory 302 storing a computer program executable by the processor 301, the computer program being executable by the processor 301 when the computing device is running to perform the method in any of the alternative implementations of the above embodiments when the processor 301 executes the computer program to perform the following functions: continuously acquiring air pressure values according to a first time interval in a blowing mode and a pressure stabilizing mode; in the pressure stabilizing mode, when the air pressure value is smaller than a first preset value, the air blowing mode is switched to; in the blowing mode, when the difference between two adjacent air pressure values is greater than a second preset value, the mode is switched to a voltage stabilizing mode. Thereby intelligently and automatically switching the working mode of the pneumoperitoneum machine.
Referring to fig. 2, fig. 2 is a schematic diagram illustrating an automatic switching device for an operating mode of a pneumoperitoneum machine according to some embodiments of the present disclosure, including:
a first obtaining module 201, configured to continuously obtain an air pressure value at a first time interval in a blowing mode and a pressure stabilizing mode;
the blowing mode switching module 202 is used for switching to a blowing mode when the air pressure value is smaller than a first preset value in a pressure stabilizing mode;
and the voltage stabilizing mode switching module 203 is used for switching to a voltage stabilizing mode when the difference between two adjacent air pressure values is greater than a second preset value in the blowing mode.
The logic of the above electronic device or pneumoperitoneum machine working mode automatic switching device for controlling the operation of the pneumoperitoneum machine is shown in fig. 5, each time the pneumoperitoneum machine is started, the blowing mode is firstly entered, air is supplied according to the flow set by the user in the blowing mode, the air pressure value is continuously obtained according to the first time interval, the difference between two adjacent air pressure values is calculated to obtain a first difference value, and when the first difference value is greater than a second preset value or the air pressure value is greater than or equal to a third preset value Pmax of the pneumoperitoneum machine, the stable pressure mode is switched; in the pressure stabilizing mode, continuously acquiring an air pressure value according to a first time interval, if the air pressure value does not reach the pressure set by a user, keeping air supply, if the air pressure value reaches the pressure set by the user, stopping air supply, and when the air pressure value is smaller than a first preset value, switching to the air blowing mode, and judging whether to switch to the pressure stabilizing mode after the two first time intervals.
In the description of the present specification, reference to the terms "one embodiment," "certain embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention.
Claims (10)
1. The utility model provides a pneumoperitoneum machine mode automatic switching method, the applicable pneumoperitoneum machine of includes main part pipeline (5) and sets up proportional valve (3), flow sensor (4), baroceptor (7) in main part pipeline (5), the one end of main part pipeline (5) is connected with air supply (1), and the other end is connected with air feed pipe (9), its characterized in that, includes following step:
continuously acquiring air pressure values according to a first time interval in a blowing mode and a pressure stabilizing mode;
in the pressure stabilizing mode, when the air pressure value is smaller than a first preset value, switching to an air blowing mode;
in the blowing mode, when the difference between two adjacent air pressure values is greater than a second preset value, switching to a voltage stabilization mode;
the pressure stabilizing mode is to periodically regulate and control pressure so that the air pressure value meets the pressure set by a user; the blowing mode is continuous blowing.
2. The method as claimed in claim 1, wherein the step of continuously obtaining the air pressure value at a first time interval in the insufflation mode and the pressure stabilization mode comprises:
in the blowing mode and the pressure stabilizing mode, continuously acquiring air pressure values according to a first time interval, sequencing a plurality of latest air pressure values according to the size, discarding the maximum value and the minimum value, and averaging the rest air pressure values to obtain a filtering air pressure value;
in the pressure stabilizing mode, the step of switching to the blowing mode when the air pressure value is smaller than a first preset value comprises the following steps:
in the pressure stabilizing mode, when the filtering air pressure value is smaller than a first preset value, switching to an air blowing mode;
in the blowing mode, when the difference between two adjacent air pressure values is greater than a second preset value, the step of switching to the voltage stabilization mode comprises the following steps:
in the blowing mode, when the difference between two adjacent filtering air pressure values is greater than a second preset value, the blowing mode is switched to a voltage stabilizing mode.
3. The method for automatically switching the working mode of the pneumoperitoneum machine according to claim 1, wherein the step of switching to the stable pressure mode when the difference between two adjacent air pressure values is greater than a second preset value in the blowing mode comprises the steps of:
in the blowing mode, when the difference between two adjacent air pressure values is greater than a second preset value or the air pressure value is greater than or equal to a third preset value, switching to a stable pressure mode, wherein the third preset value is that 5mmHg is added to the air pressure value in the pipeline after the maximum flow output is set in the blowing mode.
4. The method for automatically switching the working mode of the pneumoperitoneum machine according to claim 1, wherein the step of switching to the stable pressure mode when the difference between two adjacent air pressure values is greater than a second preset value in the blowing mode comprises:
in the blowing mode, the difference between two adjacent air pressure values is calculated to obtain a first difference value, and when five continuous first difference values are all larger than the second preset value, the mode is switched to a voltage stabilizing mode.
5. The method for automatically switching the working mode of the pneumoperitoneum machine according to claim 1, wherein the step of switching to the stable pressure mode when the difference between two adjacent air pressure values is greater than a second preset value in the blowing mode comprises:
in the blowing mode, forcibly maintaining the blowing mode in two first time intervals after the pressure stabilizing mode is switched to the blowing mode; and after two first time intervals are passed after the pressure stabilizing mode is switched to the blowing mode, switching to the pressure stabilizing mode when the difference between two adjacent air pressure values is greater than a second preset value.
6. The pneumoperitoneum machine operation mode automatic switching method according to claim 1, wherein the first preset value is 0.5 mmHg.
7. The method of claim 1, wherein the second preset value is 0.1 mmHg.
8. An electronic device comprising a processor and a memory, said memory storing computer readable instructions which, when executed by said processor, perform the steps of the method according to any one of claims 1 to 7.
9. The utility model provides an pneumoperitoneum machine mode automatic switching control equipment, the applicable pneumoperitoneum machine includes main part pipeline (5) and sets up proportional valve (3), flow sensor (4), baroceptor (7) in main part pipeline (5), the one end of main part pipeline (5) is connected with air supply (1), and the other end is connected with air feed pipe (9), its characterized in that includes:
the first acquisition module is used for continuously acquiring air pressure values at a first time interval in a blowing mode and a pressure stabilizing mode;
the blowing mode switching module is used for switching to a blowing mode when the air pressure value is smaller than a first preset value in a pressure stabilizing mode;
the pressure stabilizing mode switching module is used for switching to a pressure stabilizing mode when the difference between two adjacent air pressure values is greater than a second preset value in the blowing mode;
the pressure stabilizing mode is to periodically regulate and control pressure so that the air pressure value meets the pressure set by a user; the blowing mode is continuous blowing.
10. An pneumoperitoneum machine comprises a main pipeline (5), and a proportional valve (3), a flow sensor (4) and an air pressure sensor (7) which are arranged in the main pipeline (5), one end of the main pipeline (5) is connected with an air source (1), the other end is connected with an air feed pipe (9), it is characterized in that the air blowing device has two working modes of a pressure stabilizing mode and an air blowing mode, wherein air is continuously fed according to the flow set by a user in the air blowing mode, the proportional valve (3), the flow sensor (4) and the air pressure sensor (7) are in signal connection with a main control chip (6), the air pressure sensor (7) continuously measures the air pressure value according to a first time interval when the pneumoperitoneum machine is in a blowing mode or a pressure stabilizing mode, sending air pressure information to the main control chip (6), and receiving the air pressure information by the main control chip (6); when the pneumoperitoneum machine is in the stable pressure mode state and the air pressure value is smaller than a first preset value, the main control chip (6) switches the working mode of the pneumoperitoneum machine to an air blowing mode; when the pneumoperitoneum machine is in the blowing mode state and the difference between two adjacent air pressure values is larger than a second preset value, the main control chip (6) switches the working mode of the pneumoperitoneum machine to a pressure stabilizing mode;
the pressure stabilizing mode is to periodically regulate and control pressure so that the air pressure value conforms to the pressure set by a user; the blowing mode is continuous blowing.
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5013294A (en) * | 1987-11-17 | 1991-05-07 | Richard Wolf Gmbh | Insufflation device for endoscopic intervention |
| CN108652688A (en) * | 2018-07-30 | 2018-10-16 | 鹰利视医疗科技有限公司 | A kind of pneumoperitoneum apparatus and its voltage stabilizing control method with voltage stabilizing function |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5013294A (en) * | 1987-11-17 | 1991-05-07 | Richard Wolf Gmbh | Insufflation device for endoscopic intervention |
| CN108652688A (en) * | 2018-07-30 | 2018-10-16 | 鹰利视医疗科技有限公司 | A kind of pneumoperitoneum apparatus and its voltage stabilizing control method with voltage stabilizing function |
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