Control method and device of medical equipment, electronic equipment and product

Abstract

This application applies to the field of sensors and provides a control method, apparatus, electronic device, and product for medical devices. The method includes: acquiring the actual zero-adjustment voltage of a pressure sensor in the medical device before it operates; determining the detection result of the pressure sensor based on the actual zero-adjustment voltage and a preset standard zero-adjustment voltage; and controlling the medical device based on the detection result. Using this method can improve the reliability of medical device use.

Description

Technical Field

[0001] This application belongs to the field of sensor technology, and in particular relates to a control method, device, electronic equipment and product for medical devices. Background Technology

[0002] A pressure sensor is a device that senses pressure signals and converts them into usable electrical signals according to a certain rule. It is widely used in various control fields. For example, in the medical field, medical equipment (such as robotic arms or medical carts) can operate based on the detected pressure.

[0003] Pressure sensors may develop errors during prolonged operation or when affected by external environmental factors. Therefore, they typically require manual zeroing periodically.

[0004] However, regularly zeroing the pressure sensor manually usually cannot resolve sudden hardware or software malfunctions. Therefore, in actual use, medical equipment operating normally in response to the pressure signal collected by the pressure sensor may face the risk of losing control due to a sudden malfunction of the pressure sensor. Summary of the Invention

[0005] This application provides a control method, device, electronic device, and product for medical devices, which can solve the problem of uncontrolled operation of medical devices due to sudden hardware or software failures of pressure sensors.

[0006] In a first aspect, embodiments of this application provide a method for controlling a medical device, the method comprising:

[0007] Before the medical equipment is put into operation, obtain the actual zero-adjustment voltage of the pressure sensor in the medical equipment;

[0008] The detection results of the pressure sensor are determined based on the actual zero-adjustment voltage and the preset standard zero-adjustment voltage.

[0009] Controlling medical equipment based on test results.

[0010] In one embodiment, the detection result of the pressure sensor is determined based on the actual zero-adjustment voltage and the preset standard zero-adjustment voltage, including:

[0011] Determine the voltage difference between the actual zero-adjustment voltage and the standard zero-adjustment voltage;

[0012] If the voltage difference is not within the preset voltage range, the detection result is determined to be a pressure sensor malfunction.

[0013] If the voltage difference is within the preset voltage range, the test result indicates that the pressure sensor is normal.

[0014] In one embodiment, controlling a medical device based on detection results includes:

[0015] If the test result indicates that the pressure sensor is abnormal, the medical device will be controlled to perform a preset fault handling procedure.

[0016] If the test result indicates that the pressure sensor is normal, the medical device is controlled to respond to the pressure collected by the pressure sensor.

[0017] In one embodiment, if the detection result indicates that the pressure sensor is malfunctioning, the medical device is controlled to perform preset fault handling, including:

[0018] If the test result indicates that the pressure sensor is abnormal, then acquire the multiple digital signals collected by the analog-to-digital converter in the medical device;

[0019] If multiple digital signals are abnormal, the analog-to-digital converter is faulty.

[0020] If the zero-adjustment digital signal in the multi-channel digital signal is abnormal, while the other digital signals are normal, then the digital-to-analog converter in the medical equipment is faulty.

[0021] Control the medical device to generate fault results; the fault results include at least one of analog-to-digital converter fault and digital-to-analog converter fault.

[0022] In one embodiment, the method further includes:

[0023] When a zeroing command is detected, adjust the zeroing voltage input to the pressure sensor;

[0024] The output of the pressure sensor is sampled to obtain a sampled signal;

[0025] If the voltage represented by the sampled signal is within the preset zero-adjustment range, then the current zero-adjustment voltage is determined as the standard zero-adjustment voltage.

[0026] If the voltage represented by the sampled signal is not within the preset zero-adjustment range, adjust the zero-adjustment voltage until the voltage represented by the sampled signal is within the preset zero-adjustment range.

[0027] In one embodiment, adjusting the zero-adjustment voltage input to the pressure sensor upon detecting a zero-adjustment command includes:

[0028] When a zeroing command is detected, if it is determined that there is external force on the pressure sensor, a preset prompt operation is executed; the prompt operation is used to prompt the user to remove the factors that cause external force to the pressure sensor.

[0029] If it is determined that there is no external force on the pressure sensor, adjust the zero-adjustment voltage input to the pressure sensor.

[0030] In one embodiment, the standard zero-adjustment voltage includes at least one of the zero-adjustment voltage after zeroing based on a zero-adjustment command and the actual zero-adjustment voltage obtained during the last operation of the medical device.

[0031] Secondly, embodiments of this application provide a control device for a medical device, the device comprising:

[0032] The acquisition module is used to acquire the actual zero-adjustment voltage of the pressure sensor in the medical device before the medical device is put into operation; the medical device includes pressure-controlled equipment.

[0033] The first determining module is used to determine the detection result of the pressure sensor based on the actual zero-adjustment voltage and the preset standard zero-adjustment voltage.

[0034] The control module is used to control medical devices based on the test results.

[0035] Thirdly, embodiments of this application provide an electronic device, including a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the computer program to implement the method described in the first aspect above.

[0036] Fourthly, embodiments of this application provide a computer-readable storage medium storing a computer program that, when executed by a processor, implements the method described in the first aspect above.

[0037] Fifthly, embodiments of this application provide a computer program product that, when run on an electronic device, causes the electronic device to execute the method described in the first aspect.

[0038] The beneficial effects of this application's embodiments compared to existing technologies are as follows: For medical devices including pressure-controlled components, the actual zero-adjustment voltage of the pressure sensor in the medical device can be obtained before controlling the device's operation. Then, based on the actual zero-adjustment voltage and a preset standard zero-adjustment voltage, the detection result of the pressure sensor is determined. Based on this, before the medical device operates, it can be determined whether the zero-adjustment voltage of the pressure sensor has shifted due to factors such as damage to internal electronic components or software malfunctions. Furthermore, controlling the medical device's operation based on the detection result allows for timely detection of pressure sensor malfunctions, reducing the risk of uncontrolled operation due to erroneous pressure signals acquired by the pressure sensor. Additionally, when the pressure sensor is functioning normally, it ensures that the medical device can operate normally based on the pressure signal detected by the pressure sensor, improving the reliability of the medical device. Attached Figure Description

[0039] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0040] Figure 1 This is a flowchart illustrating the implementation of a control method for a medical device according to an embodiment of this application.

[0041] Figure 2 This is a schematic diagram illustrating one implementation method for obtaining the actual zero-adjustment voltage in a control method for a medical device provided in an embodiment of this application;

[0042] Figure 3 This is a flowchart illustrating the implementation of a control method for a medical device according to another embodiment of this application;

[0043] Figure 4 This is a schematic diagram of the structure of a control device for a medical device according to an embodiment of this application;

[0044] Figure 5 This is a schematic diagram of the structure of an electronic device provided in an embodiment of this application. Detailed Implementation

[0045] In the following description, specific details such as particular system architectures and techniques are set forth for illustrative purposes and not for limitation, in order to provide a thorough understanding of the embodiments of this application. However, those skilled in the art will understand that this application may also be implemented in other embodiments without these specific details. In other instances, detailed descriptions of well-known systems, apparatuses, circuits, and methods have been omitted so as not to obscure the description of this application with unnecessary detail.

[0046] It should be understood that, when used in this application specification and the appended claims, the term "comprising" indicates the presence of the described features, integrals, steps, operations, elements and / or components, but does not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components and / or a collection thereof.

[0047] It should be noted that the information collection process (such as patient information collection process, physiological information collection process, etc.) / feature extraction process involved in this application is carried out with the user's knowledge and permission. That is, the information collection process / feature extraction process complies with the requirements of laws and regulations and does not constitute an act that harms the public interest.

[0048] Furthermore, in the description of this application and the appended claims, the terms "first," "second," "third," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0049] A pressure sensor is a device that senses pressure signals and converts them into usable electrical signals according to a certain rule. It is widely used in various control fields. For example, in the medical field, medical equipment (such as robotic arms or medical carts) can operate based on the detected pressure.

[0050] Pressure sensors may develop errors during prolonged operation or when affected by external environmental factors. Therefore, they typically require manual zeroing periodically.

[0051] However, regularly zeroing the pressure sensor manually usually cannot resolve sudden hardware or software malfunctions. Therefore, in actual use, medical equipment operating normally in response to the pressure signal collected by the pressure sensor may face the risk of losing control due to a sudden malfunction of the pressure sensor.

[0052] For example, after periodic zeroing, if a sudden hardware or software malfunction occurs in the pressure sensor, causing a shift in the zeroing voltage, the pressure signal collected by the sensor may deviate significantly from the actual pressure signal. Consequently, when the medical device operates based on the incorrect pressure signal, the resulting performance may not meet expectations. Furthermore, over time, prolonged operation based on the incorrect pressure signal could cause further damage to the medical device, posing a risk of uncontrolled operation.

[0053] Based on this, in order to make the use of medical devices more reliable, this application provides a control method for medical devices. This method can be applied to electronic devices such as microcontrollers in pressure sensors and controllers of medical devices. This application does not impose any restrictions on the specific type of electronic device.

[0054] Please see Figure 1 , Figure 1 The following is a flowchart illustrating the implementation of a control method for a medical device according to an embodiment of this application. The method includes the following steps:

[0055] S101. Before the medical equipment is put into operation, obtain the actual zero-adjustment voltage of the pressure sensor in the medical equipment.

[0056] In one embodiment, the aforementioned medical device includes pressure-controlled device components. Exemplary examples include, but are not limited to, pressure-controlled robotic arms, medical carts, medical infusion pumps for precise drug delivery based on pressure control, and medical pressure monitors for measuring internal body pressure (e.g., blood pressure, intracranial pressure), and are not limited thereto. It is understood that all of the aforementioned medical devices contain one or more pressure-controlled device components.

[0057] In one embodiment, the pressure sensor described above includes, but is not limited to, strain gauge pressure sensors, piezoresistive pressure sensors, and capacitive pressure sensors, and there is no limitation thereto.

[0058] The actual zero-adjustment voltage can be the zero-adjustment voltage collected when the medical device performs the zero-adjustment procedure before operation. That is, the zero-adjustment procedure can be performed once before each operation of the medical device (i.e., after the medical device is started but before it is working) to obtain the above-mentioned actual zero-adjustment voltage.

[0059] As an example, electronic devices can be based on, for example... Figure 2 Steps S201-S204, as shown, perform a zeroing procedure for the pressure sensor. Details are as follows:

[0060] S201. When a zeroing command is detected, adjust the zeroing voltage input to the pressure sensor.

[0061] In one embodiment, the zeroing command can be a command generated by the electronic device in response to the clicking of a virtual or physical zeroing button, or a command triggered based on a preset zeroing time, or a command triggered in response to a special event. In this embodiment, the method of generating the zeroing command is not limited.

[0062] The zeroing time and special events can be set according to the actual situation, and there are no restrictions on them. For example, the zeroing time can be to perform the zeroing process once a week, and the special event can be the medical device start event.

[0063] For example, when a user needs to calibrate the zero-adjustment voltage of a pressure sensor, the electronic device can generate a zero-adjustment command in response to the user's click on the zero-adjustment button. When the zero-adjustment voltage of the pressure sensor needs to be calibrated periodically, the electronic device can generate a zero-adjustment command based on a set zero-adjustment interval. Furthermore, the electronic device can also generate a zero-adjustment command each time the medical device is detected to be started.

[0064] In one embodiment, the zero-adjustment voltage is the voltage input to the pressure sensor. However, the method of adjusting the zero-adjustment voltage during the zero-adjustment process typically differs for different types of pressure sensors.

[0065] For example, when the pressure sensor is equipped with a zero-adjustment voltage input port, the electronic device can adjust the zero-adjustment voltage input to the pressure sensor through an external power supply or an internal zero-adjustment circuit.

[0066] Alternatively, for pressure sensors employing a bridge structure (e.g., strain gauge pressure sensors), the balance of the bridge, composed of multiple resistors, typically directly affects the sensor's output. Therefore, by adjusting one or more balancing resistors in the bridge, the resistance ratio of each arm can be changed. This, in turn, alters the pressure sensor's resistance value, thereby adjusting the voltage input to the pressure sensor and ultimately bringing the sensor's output voltage within a preset zero-adjustment range.

[0067] Alternatively, the zero-adjustment voltage can be adjusted using a digital potentiometer. For example, a digital potentiometer is an electronic component that can control the resistance of a pressure sensor via a digital signal. In the pressure sensor's circuitry, the digital potentiometer can be connected to the pressure sensor's input or signal processing section. Furthermore, the electronic device can adjust the zero-adjustment voltage input to the pressure sensor by sending a command to the digital potentiometer to change the pressure sensor's resistance.

[0068] When adjusting the zero-adjustment voltage, the adjustment range can be set according to the accuracy requirements of the pressure sensor and the fault tolerance of the actual application scenario, and there is no limitation on this. For example, for a high-precision medical device, the adjustment range corresponding to the pressure sensor can be 1 microvolt. And for industrial equipment with relatively low accuracy requirements, the adjustment range corresponding to the pressure sensor can be 100 millivolts.

[0069] In this embodiment, the method of adjusting the zero-adjustment voltage is not limited.

[0070] It should be noted that when a zeroing command is detected, in order to ensure zeroing accuracy, it is usually necessary to eliminate any external force on the pressure sensor during the process of adjusting the zeroing voltage input to the pressure sensor.

[0071] Typically, external forces can cause deformation or stress changes in the sensitive element of a pressure sensor, thereby altering the signal output by the pressure sensor. That is, even when the actual pressure is zero, the pressure sensor may output a non-zero signal that is sampled, thus affecting the accuracy of zeroing.

[0072] Therefore, to improve the accuracy of zeroing, when a zeroing command is detected, if it is determined that there is external force on the pressure sensor, a preset prompt operation is executed. This prompt operation is used to remind the user to remove factors affecting the pressure sensor and exerting external force. If it is determined that there is no external force on the pressure sensor, the zeroing voltage input to the pressure sensor is adjusted.

[0073] The methods for detecting external forces include, but are not limited to, detection based on the characteristics of the sensor itself, detection in response to user input, and detection with the aid of auxiliary equipment.

[0074] As an example, the inherent characteristics of a sensor can be considered as the type of pressure sensor. Taking a capacitive pressure sensor as an example, external forces may change the distance between the capacitor plates inside the sensor or the dielectric constant of the medium, thus altering the capacitance value. Therefore, the presence of external force can be determined by detecting changes in the capacitance value. For instance, when the pressure sensor is in a stable, pressureless environment, its capacitance value should remain at a relatively stable level. If the capacitance value fluctuates, it can be determined that the pressure sensor is subjected to external force.

[0075] Alternatively, the auxiliary device can be an optical sensor, which can detect changes in the surface state or position of the pressure sensor. For example, a tiny reflector can be mounted on the surface of the pressure sensor, and then a laser displacement sensor can detect changes in the reflector's position. When an external force is applied to the pressure sensor, its surface may displace, which can then be detected by the optical sensor to determine the presence of the external force.

[0076] In this embodiment, the method for determining whether an external force exists in the pressure sensor is not limited.

[0077] The prompting operations include, but are not limited to, playing a preset prompt voice, flashing lights, vibration, or one or more other operations. Users can use these prompting operations to eliminate factors affecting the pressure sensor until it is determined that there is no external force on the pressure sensor, at which point they can execute step S201 and subsequent steps.

[0078] S202. Sample the output of the pressure sensor to obtain the sampled signal.

[0079] In one embodiment, the sampling signal is an analog signal obtained by sampling the output of the pressure sensor based on a digital-to-analog converter (DAC).

[0080] Understandably, during zeroing, the pressure sensor's output voltage changes as the zeroing voltage changes. Based on this, a digital-to-analog converter (DAC) can sample the changing analog voltage at a pre-set sampling frequency to obtain an analog voltage signal. This sampled signal can then be used for subsequent analysis; for example, an ADC can convert the sampled signal (analog voltage signal) into a digital signal to determine the pressure sensor's output voltage in the current zeroing state.

[0081] In one embodiment, the sampling frequency and the sampling precision of the digital-to-analog converter can be set according to actual conditions and are not limited thereto. Sampling precision is typically expressed in bits; a higher bit count indicates higher precision. Common bit counts include, but are not limited to, 8 bits, 12 bits, and 16 bits. For example, the sampling frequency can be 100 Hz and the sampling precision can be 16 bits.

[0082] It should be added that after sampling, the obtained sampled signal usually needs to undergo signal processing. For example, signal processing includes, but is not limited to, filtering, amplification, and offset adjustment. For instance, a low-pass filter can be used to remove high-frequency noise from the sampled signal. Also, if the amplitude of the sampled signal is low, it can be amplified for subsequent analysis.

[0083] S203. If the voltage represented by the sampled signal is within the preset zero-adjustment range, then the current zero-adjustment voltage is determined as the actual zero-adjustment voltage.

[0084] S204. If the voltage represented by the sampled signal is not within the preset zero-adjustment range, adjust the zero-adjustment voltage until the voltage represented by the sampled signal is within the preset zero-adjustment range.

[0085] In one embodiment, the electronic device can use an analog-to-digital converter (ADC) to process the sampled signal to obtain the voltage represented by the sampled signal. Specifically, the medical device can include both a digital-to-analog converter (DAC) and an analog-to-digital converter (ADC) to sample and convert the output of the pressure sensor to obtain the corresponding voltage. That is, the electronic device can act as the control unit, controlling the DAC and ADC, eliminating the need to include these components within the electronic device itself.

[0086] In one embodiment, the aforementioned preset zero-adjustment range is a voltage interval pre-set during the zero-adjustment process of the pressure sensor, used to define the acceptable fluctuation range of the pressure sensor output voltage under ideal zero-position conditions. This range can also be set based on the accuracy requirements of the pressure sensor and the fault tolerance of the actual application scenario, and is not limited thereto.

[0087] For example, for a high-precision medical device, the preset zero-adjustment range for the pressure sensor can be [-0.1mV, 0.1mV]. And for industrial equipment with relatively low precision requirements, the preset zero-adjustment range for the pressure sensor can be [-1mV, 1mV].

[0088] Understandably, if the voltage represented by the sampled signal is within the preset zero-adjustment range, then the current zero-adjustment voltage can be considered to enable the pressure sensor to reach the ideal zero-position state. Therefore, the current zero-adjustment voltage can be determined as the actual zero-adjustment voltage. Conversely, if the voltage represented by the sampled signal is not within the preset zero-adjustment range, then the current zero-adjustment voltage cannot enable the pressure sensor to reach the ideal zero-position state. Therefore, the zero-adjustment voltage needs to be adjusted. That is, step S201 and subsequent steps are executed until the voltage represented by the sampled signal is within the preset zero-adjustment range.

[0089] In another embodiment, when the voltage represented by the sampled signal is within a preset zero-adjustment range, the electronic device can first record this zero-adjustment voltage as the initial zero-adjustment voltage. Then, the zero-adjustment voltage of the pressure sensor is input multiple times as the initial zero-adjustment voltage, and the output of the pressure sensor is sampled each time to obtain multiple sampled signals. Finally, when the voltages represented by the multiple sampled signals are all within the preset zero-adjustment range, the initial zero-adjustment voltage is determined as the actual zero-adjustment voltage.

[0090] Otherwise, if the voltage represented by the sampled signal is not within the preset zero-adjustment range, the electronic device can readjust the zero-adjustment voltage input to the pressure sensor again. That is, it executes step S201 and subsequent steps until the voltage represented by the sampled signal is within the preset zero-adjustment range.

[0091] It should be noted that the above process of determining the actual zero-adjustment voltage is all automated, requiring no manual intervention, thus reducing labor costs and improving the efficiency of zero adjustment.

[0092] S102. Determine the detection result of the pressure sensor based on the actual zero-adjustment voltage and the preset standard zero-adjustment voltage.

[0093] In one embodiment, the aforementioned standard zero-adjustment voltage can be considered as the zero-adjustment voltage calibrated based on a zero-adjustment command, or as the actual zero-adjustment voltage obtained during the last operation of the medical device, or as the zero-adjustment voltage set at the factory of the pressure sensor; no limitation is made in this regard. For ease of explanation, in this embodiment, the standard zero-adjustment voltage is defined as the zero-adjustment voltage calibrated periodically based on a preset zero-adjustment time.

[0094] The zeroing instruction has already been explained in S201 above, and will not be explained again.

[0095] As explained above, after each startup of the medical device, the electronic equipment needs to perform steps S201-S204 on the pressure sensor to obtain the actual zero-adjustment voltage. Therefore, the electronic equipment can use the actual zero-adjustment voltage obtained during the previous operation as the standard zero-adjustment voltage. That is, the standard zero-adjustment voltage can be a constant zero-adjustment voltage over a long period, or it can be a zero-adjustment voltage that is updated with each operation of the medical device.

[0096] It should be noted that when the standard zero-adjustment voltage is a zero-adjustment voltage calibrated based on a zero-adjustment command, the method for obtaining the standard zero-adjustment voltage can be similar to steps S201-S204 described above. Specifically, when a zero-adjustment command is detected, the zero-adjustment voltage input to the pressure sensor is adjusted; the output of the pressure sensor is sampled to obtain a sampled signal; if the voltage represented by the sampled signal is within a preset zero-adjustment range, the current zero-adjustment voltage is determined as the standard zero-adjustment voltage; if the voltage represented by the sampled signal is not within the preset zero-adjustment range, the zero-adjustment voltage is adjusted until the voltage represented by the sampled signal is within the preset zero-adjustment range. The method for obtaining the standard zero-adjustment voltage can refer to the example in steps S201-S204 described above, and will not be explained further.

[0097] It should be noted that after obtaining the standard zero-adjustment voltage, it can be stored in memory for later retrieval by electronic devices. For example, the standard zero-adjustment voltage can be stored in a digital-to-analog converter with storage capabilities, such as a hard drive or optical disc in a medical device; there are no limitations on this.

[0098] As an example, the standard zero-adjustment voltage can be stored in a digital-to-analog converter (DAC) with storage capabilities. It is understood that, based on the above explanation, a DAC is required to obtain the actual zero-adjustment voltage. Therefore, the electronic device can directly obtain the analog signal corresponding to the standard zero-adjustment voltage from the DAC and perform digital-to-analog conversion to obtain the standard zero-adjustment voltage while simultaneously obtaining the actual zero-adjustment voltage. Furthermore, this allows both the standard zero-adjustment voltage and the actual zero-adjustment voltage to use the same conversion mechanism, reducing data inconsistencies caused by differences between different conversion devices.

[0099] In one embodiment, the above detection results can be divided into two types: pressure sensor malfunction and pressure sensor normal operation. As an example, the electronic device can determine that the pressure sensor is malfunctioning when the actual zero-adjustment voltage is different from the standard zero-adjustment voltage; otherwise, it can determine that the pressure sensor is normal when the actual zero-adjustment voltage is the same as the standard zero-adjustment voltage.

[0100] However, it is understandable that in real-world scenarios, even if the pressure sensor is functioning correctly, it cannot be guaranteed that the zero-adjustment voltages obtained twice will be identical. For example, the pressure sensor may be subject to transient external interference, such as ambient temperature, electromagnetic pulses, or mechanical vibrations, causing fluctuations in the zero-adjustment voltage.

[0101] Therefore, to ensure the accuracy of the detection, the electronic equipment can determine the voltage difference between the actual zero-adjustment voltage and the standard zero-adjustment voltage. Then, the detection result is determined based on the voltage difference.

[0102] For example, if the voltage difference is not within the preset voltage range, the electronic device can determine that the detection result is a pressure sensor malfunction. Otherwise, if the voltage difference is within the preset voltage range, the electronic device can determine that the detection result is a pressure sensor malfunction.

[0103] It is understandable that the preset standard zero-adjustment voltage can be considered as the zero-adjustment voltage corresponding to the ideal zero-point state of the pressure sensor after periodic calibration. Therefore, the standard zero-adjustment voltage can be considered as the reference zero point at which the pressure sensor can operate accurately. Furthermore, the actual zero-adjustment voltage can be considered as the current zero-adjustment voltage state of the pressure sensor during actual use.

[0104] Based on this, calculating the voltage difference between the actual zero-adjustment voltage and the standard zero-adjustment voltage can provide an intuitive understanding of the degree of deviation of the zero-point state of the pressure sensor from the ideal state, thereby determining the working performance of the pressure sensor and whether there are any potential faults.

[0105] As an example, when the voltage difference between the actual zero-adjustment voltage and the standard zero-adjustment voltage is within a preset voltage range (e.g., ±0.05V), it can be determined that the zero-point state of the pressure sensor is normal, its operating performance is within an acceptable range, and it can accurately perform subsequent pressure measurement work.

[0106] Furthermore, if the voltage difference between the actual zero-adjustment voltage and the standard zero-adjustment voltage is not within the preset voltage range (e.g., greater than 0.05V, or less than -0.05V), it can be determined that the zero-point state of the pressure sensor is abnormal. In this case, a detailed inspection and repair of the pressure sensor is usually required to eliminate the abnormality.

[0107] S103. Controlling medical equipment based on test results.

[0108] In one embodiment, as described above, the detection results are divided into two types: pressure sensor abnormality and pressure sensor normality. Therefore, the actions performed by the medical device are usually different based on the different detection results.

[0109] For example, if the detection result indicates that the pressure sensor is malfunctioning, the electronic device can control the medical device to perform preset fault handling. Conversely, if the detection result indicates that the pressure sensor is normal, the electronic device can control the medical device to respond to the pressure collected by the pressure sensor.

[0110] When the pressure sensor test result indicates it is functioning normally, it can be assumed that the zero point of the pressure sensor's zero-adjustment voltage has not shifted. Therefore, the pressure collected by the pressure sensor can be considered accurate. Thus, the electronic device can control the medical device to respond normally to the pressure collected by the pressure sensor. For example, it can control the medical device to perform corresponding operations based on the collected pressure.

[0111] However, when the test result indicates a pressure sensor malfunction, it can be assumed that the zero point of the pressure sensor's zero-adjustment voltage has shifted. Therefore, it can be concluded that the pressures collected by the pressure sensor are all erroneous. If the medical device is controlled based on these erroneous pressures, there is a risk of the medical device malfunctioning. Therefore, to reduce the risk of malfunction during medical device operation, the electronic device needs to control the medical device to execute preset fault handling procedures.

[0112] The preset fault handling includes, but is not limited to, reporting fault information (e.g., fault results of electronic components in pressure sensors) and performing preset fault prompting operations (e.g., voice broadcast of fault, or flashing red light to indicate fault), and there are no limitations on this.

[0113] It should be noted that when medical equipment performs a preset fault indication operation, maintenance personnel can only determine that the pressure sensor is faulty, but cannot determine the specific cause of the fault. In this case, maintenance personnel usually need to test the pressure sensor on-site to determine the cause, and then carry out targeted repairs.

[0114] However, because the possible causes of the malfunction cannot be determined, it is impossible to provide guidance to maintenance personnel when troubleshooting the pressure sensor. Consequently, maintenance personnel are likely to spend a significant amount of time determining the cause, resulting in low maintenance efficiency.

[0115] Therefore, to improve the maintenance efficiency of repair personnel, the electronic equipment can acquire multiple digital signals collected by the analog-to-digital converter (ADC) in the medical device when the detection result indicates an abnormal pressure sensor. Then, if all multiple digital signals are abnormal, the electronic equipment can determine that the ADC is faulty. Otherwise, if the zero-adjustment digital signal among the multiple digital signals is abnormal, and the remaining digital signals are normal, the electronic equipment can determine that the digital-to-analog converter (DAC) in the medical device is faulty. Finally, the electronic equipment generates a fault result; the fault result includes at least one of the following: ADC failure or DAC failure.

[0116] An analog-to-digital converter (ADC) is a device that converts analog signals into digital signals. In practical applications, many physical quantities (such as temperature, pressure, and sound) can be converted into continuously changing analog electrical signals by sensors, but digital processing systems such as computers can only process digital signals, so an ADC is needed to achieve this conversion.

[0117] Furthermore, a digital-to-analog converter (DAC) is a device that converts digital signals into analog signals. Its function is the opposite of that of an ADC, and it is mainly used to restore digital signals generated by a digital processing system into analog signals to drive external analog devices.

[0118] In real-world scenarios, medical devices typically incorporate various types of sensors (e.g., pressure sensors, temperature sensors, etc.) or multiple sensors of the same type (e.g., multiple pressure sensors). In such cases, installing a separate analog-to-digital converter (ADC) and digital-to-analog converter (DAC) for each sensor would increase the cost of the hardware. Therefore, medical devices usually include both an ADC and a DAC to process the signals from multiple sensors.

[0119] Therefore, when all multiple digital signals acquired by the analog-to-digital converter (ADC) are abnormal, it can be assumed that the ADC malfunction is causing the voltage difference between the actual zero-adjustment voltage and the standard zero-adjustment voltage of the pressure sensor to be outside the preset voltage range. Thus, the generated fault result can be attributed to an ADC malfunction.

[0120] Among them, multiple digital signals can be considered to correspond to digital signals of various different types of sensors.

[0121] As an example, for a temperature sensor that measures the ambient temperature, the digital signal after analog-to-digital conversion is typically within a preset temperature range (e.g., -15°C to 48°C). In this case, if the digital signal after analog-to-digital conversion displays a temperature of 50°C, the digital signal corresponding to the temperature sensor can be considered abnormal.

[0122] It is important to note that in practical applications, the digital-to-analog converter (DAC) also serves to generate a zero-adjustment voltage. The DAC converts a digital signal into an analog voltage, which is then compared to or superimposed on the output signal of the pressure sensor to achieve the zero-adjustment function.

[0123] Therefore, in practical scenarios, a digital-to-analog converter (DAC) failure (e.g., damage to the internal digital-to-analog conversion circuitry, output amplifier failure, or interference with the digital input signal) will cause an abnormality in the output zero-adjustment digital signal (i.e., the zero-adjustment voltage). Furthermore, since other digital signal paths typically do not rely on the zero-adjustment voltage generated by the DAC, only the zero-adjustment-related digital signal will be affected when the DAC fails, while the remaining digital signals will function normally. Consequently, if the zero-adjustment digital signal is abnormal among multiple digital signals, and the remaining digital signals are normal, the electronic device can determine that the DAC has failed.

[0124] In one embodiment, the above example is merely one way to determine analog-to-digital converter (ADC) failure and digital-to-analog converter (DAC) failure. In real-world scenarios, pressure sensors may experience failures in other electronic components, leading to a detection result indicating a pressure sensor malfunction. This embodiment does not provide a detailed description of the methods for determining electronic component failures.

[0125] In another embodiment, if all digital signals are normal, the cause of the pressure sensor malfunction can be attributed to a failure in other electronic components. In this case, the electronic device can control the medical device to generate a fault result indicating either a failure in other electronic components or that the analog-to-digital converter and digital-to-analog converter are functioning normally. This reduces the number of electronic components that maintenance personnel need to check, improving maintenance efficiency.

[0126] In this embodiment, for pressure-controlled medical devices, the actual zero-adjustment voltage of the pressure sensor in the medical device can be obtained first when controlling the device's operation. Then, based on the actual zero-adjustment voltage and a preset standard zero-adjustment voltage, the detection result of the pressure sensor is determined. Based on this, before the medical device operates, it can be determined whether the zero-adjustment voltage of the pressure sensor has shifted due to factors such as damage to internal electronic components or software malfunctions. Furthermore, controlling the medical device based on the detection result allows for timely detection of pressure sensor malfunctions, reducing the risk of loss of control due to erroneous pressure signals acquired by the pressure sensor. Additionally, when the pressure sensor is functioning normally, it ensures that the medical device can operate normally based on the pressure signal detected by the pressure sensor, improving the reliability of the medical device.

[0127] To more clearly illustrate the solutions in this application, specific embodiments are used below to explain the solutions. See details below. Figure 3 , Figure 3 This is a flowchart illustrating the implementation of a control method for a medical device according to another embodiment of this application.

[0128] The electronic device can execute a zeroing procedure on the pressure sensor upon detecting a zeroing command. Specifically, upon detecting a zeroing command, if the electronic device determines that there is external force on the pressure sensor, it will execute a preset prompt operation to remind the user to remove the factors affecting the pressure sensor until there is no external force on the pressure sensor. Then, after determining that there is no external force on the pressure sensor, the zeroing voltage input to the pressure sensor can be adjusted, and the output of the pressure sensor can be sampled to obtain a sampled signal.

[0129] Specifically, if the voltage represented by the sampled signal is not within the preset zero-adjustment range, the electronic device can adjust the zero-adjustment voltage until the voltage represented by the sampled signal falls within the preset zero-adjustment range. Otherwise, if the voltage represented by the sampled signal is within the preset zero-adjustment range, the current zero-adjustment voltage is determined as the standard zero-adjustment voltage, and the zero-adjustment process ends. After ending the zero-adjustment process, the electronic device can store the standard zero-adjustment voltage in a digital-to-analog converter with storage function.

[0130] After the medical device is started, the zeroing process can be performed on the pressure sensor again to determine the current zeroing voltage of the pressure sensor during actual use. That is, the actual zeroing voltage of the pressure sensor is obtained. Then, the electronic device can determine the voltage difference between the actual zeroing voltage and the standard zeroing voltage, and if the voltage difference is within a preset voltage range, the detection result is determined to be that the pressure sensor is normal. Finally, the medical device is controlled to respond to the pressure collected by the pressure sensor.

[0131] Otherwise, if the voltage difference is not within the preset voltage range, the electronic device can determine that the detection result indicates a pressure sensor malfunction and control the medical device to perform preset fault handling. For example, the electronic device can acquire multiple digital signals collected by the analog-to-digital converter in the medical device, and determine that the analog-to-digital converter is faulty if all multiple digital signals are abnormal. Otherwise, if the zero-adjustment digital signal among the multiple digital signals is abnormal, and the other digital signals are normal, the electronic device can determine that the digital-to-analog converter in the medical device is faulty. Finally, the electronic device is controlled to generate a fault result indicating either a digital converter fault or a digital-to-analog converter fault.

[0132] Please see Figure 4 , Figure 4 This is a structural block diagram of a control device for a medical device provided in an embodiment of this application. The control device for the medical device in this embodiment includes modules for executing... Figures 1 to 3 The steps in the corresponding embodiments. Please refer to the details. Figures 1 to 3 as well as Figures 1 to 3 The relevant descriptions in the corresponding embodiments are shown below. For ease of explanation, only the parts relevant to this embodiment are shown. See also... Figure 4 The control device 400 of the medical device may include: an acquisition module 410, a first determination module 420, and a control module 430, wherein:

[0133] The acquisition module 410 is used to acquire the actual zero-adjustment voltage of the pressure sensor in the medical device before the medical device is put into operation.

[0134] The first determining module 420 is used to determine the detection result of the pressure sensor based on the actual zero-adjustment voltage and the preset standard zero-adjustment voltage.

[0135] Control module 430 is used to control medical devices based on detection results.

[0136] In one embodiment, the first determining module 420 is used to:

[0137] Determine the voltage difference between the actual zero-adjustment voltage and the standard zero-adjustment voltage; if the voltage difference is not within the preset voltage range, the test result is determined to be an abnormal pressure sensor; if the voltage difference is within the preset voltage range, the test result is determined to be a normal pressure sensor.

[0138] In one embodiment, the control module 430 is used to:

[0139] If the test result indicates that the pressure sensor is abnormal, the medical device will be controlled to perform a preset fault handling procedure; if the test result indicates that the pressure sensor is normal, the medical device will be controlled to respond to the pressure collected by the pressure sensor.

[0140] In one embodiment, the control module 430 is used to:

[0141] If the detection result indicates that the pressure sensor is abnormal, then acquire multiple digital signals collected by the analog-to-digital converter in the medical device; if all multiple digital signals are abnormal, then determine that the analog-to-digital converter is faulty; if the zero-adjustment digital signal among the multiple digital signals is abnormal, and the other digital signals are normal, then determine that the digital-to-analog converter in the medical device is faulty; control the medical device to generate a fault result; the fault result includes at least one of analog-to-digital converter fault and digital-to-analog converter fault.

[0142] In one embodiment, the control device 400 of the medical device further includes:

[0143] The adjustment module is used to adjust the zero-adjustment voltage input to the pressure sensor when a zero-adjustment command is detected.

[0144] The sampling module is used to sample the output of the pressure sensor to obtain the sampled signal.

[0145] The second determining module is used to determine the current zero-adjustment voltage as the standard zero-adjustment voltage if the voltage represented by the sampled signal is within a preset zero-adjustment range.

[0146] The loop module is used to adjust the zero-adjustment voltage until the voltage represented by the sampled signal is within the preset zero-adjustment range if the voltage represented by the sampled signal is not within the preset zero-adjustment range.

[0147] In one embodiment, the adjustment module is used to:

[0148] When a zeroing command is detected, if it is determined that there is external force on the pressure sensor, a preset prompting operation is executed; the prompting operation is used to prompt the user to remove the factors that cause external force to the pressure sensor; if it is determined that there is no external force on the pressure sensor, the zeroing voltage input to the pressure sensor is adjusted.

[0149] In one embodiment, the standard zero-adjustment voltage includes at least one of the zero-adjustment voltage after zeroing based on a zero-adjustment command and the actual zero-adjustment voltage obtained during the last operation of the medical device.

[0150] When it is understood that, Figure 4 In the structural block diagram of the control device of the medical equipment shown, each module is used to perform... Figures 1 to 3 The steps in the corresponding embodiments, and for Figures 1 to 3The steps in the corresponding embodiments have been explained in detail in the above embodiments. Please refer to them for details. Figures 1 to 3 as well as Figures 1 to 3 The relevant descriptions in the corresponding embodiments will not be repeated here.

[0151] Figure 5 This is a structural block diagram of an electronic device provided in one embodiment of this application. Figure 5 As shown, the electronic device 500 of this embodiment includes: a processor 510, a memory 520, and a computer program 530 stored in the memory 520 and executable on the processor 510, such as a program for a control method of a medical device. When the processor 510 executes the computer program 530, it implements the steps of the various embodiments of the control methods for the medical devices described above, for example... Figure 1 S101 to S103 are shown. Alternatively, the processor 510 may implement the above when executing the computer program 530. Figure 4 The functions of each module in the corresponding embodiments, for example, Figure 4 For details on the functions of each module shown, please refer to [link / reference]. Figure 4 The relevant descriptions in the corresponding embodiments.

[0152] For example, the computer program 530 can be divided into one or more modules, one or more of which are stored in the memory 520 and executed by the processor 510 to implement the control method of the medical device provided in this application embodiment. One or more modules can be a series of computer program instruction segments capable of performing a specific function, which describe the execution process of the computer program 530 in the electronic device 500. For example, the computer program 530 can implement the control method of the medical device provided in this application embodiment.

[0153] Electronic device 500 may include, but is not limited to, processor 510 and memory 520. Those skilled in the art will understand that... Figure 5 This is merely an example of electronic device 500 and does not constitute a limitation on electronic device 500. It may include more or fewer components than shown, or combine certain components, or different components. For example, electronic device may also include input / output devices, network access devices, buses, etc.

[0154] The processor 510 may be a central processing unit, or it may be other general-purpose processors, digital signal processors, application-specific integrated circuits, off-the-shelf programmable gate arrays or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. The general-purpose processor may be a microprocessor or any conventional processor, etc.

[0155] The memory 520 can be an internal storage unit of the electronic device 500, such as a hard disk or RAM of the electronic device 500. The memory 520 can also be an external storage device of the electronic device 500, such as a plug-in hard disk, smart memory card, flash memory card, etc., equipped on the electronic device 500. Furthermore, the memory 520 can include both internal storage units and external storage devices of the electronic device 500.

[0156] This application provides a computer-readable storage medium, including a memory, a processor, and a computer program stored in the memory and executable on the processor. When the processor executes the computer program, it implements the control method of the medical device as described in the above embodiments.

[0157] This application provides a computer program product that, when run on an electronic device, causes the electronic device to execute the control method for the medical device described in the above embodiments.

[0158] The above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application, and should all be included within the protection scope of this application.

Claims

1. A method for controlling a medical device, characterized in that, The method includes: Before the medical device is put into operation, the actual zero-adjustment voltage of the pressure sensor in the medical device is obtained; The detection result of the pressure sensor is determined based on the actual zero-adjustment voltage and the preset standard zero-adjustment voltage. The medical device is controlled based on the test results.

2. The method according to claim 1, characterized in that, The determination of the pressure sensor's detection result based on the actual zero-adjustment voltage and the preset standard zero-adjustment voltage includes: Determine the voltage difference between the actual zero-adjustment voltage and the standard zero-adjustment voltage; If the voltage difference is not within the preset voltage range, the detection result is determined to be a pressure sensor malfunction. If the voltage difference is within the preset voltage range, then the detection result is determined to be that the pressure sensor is normal.

3. The method according to claim 2, characterized in that, The control of the medical device based on the detection results includes: If the detection result indicates that the pressure sensor is abnormal, the medical device is controlled to perform a preset fault handling procedure. If the detection result indicates that the pressure sensor is normal, then the medical device is controlled to respond to the pressure collected by the pressure sensor.

4. The method according to claim 3, characterized in that, If the detection result indicates that the pressure sensor is abnormal, the medical device is controlled to perform preset fault handling, including: If the detection result indicates that the pressure sensor is abnormal, then the multiple digital signals collected by the analog-to-digital converter in the medical device are acquired. If all the multiple digital signals are abnormal, then the analog-to-digital converter is determined to be faulty. If the zero-adjustment digital signal in the multi-channel digital signal is abnormal, while the other digital signals are normal, then the digital-to-analog converter in the medical device is determined to be faulty. The medical device is controlled to generate a fault result; the fault result includes at least one of the analog-to-digital converter fault and the digital-to-analog converter fault.

5. The method according to any one of claims 1-4, characterized in that, The method further includes: When a zero-adjustment command is detected, the zero-adjustment voltage input to the pressure sensor is adjusted; The output of the pressure sensor is sampled to obtain a sampling signal; If the voltage represented by the sampled signal is within a preset zero-adjustment range, then the current zero-adjustment voltage is determined as the standard zero-adjustment voltage; If the voltage represented by the sampled signal is not within the preset zero-adjustment range, then adjust the zero-adjustment voltage until the voltage represented by the sampled signal is within the preset zero-adjustment range.

6. The method according to claim 5, characterized in that, The step of adjusting the zero-adjustment voltage input to the pressure sensor when a zero-adjustment command is detected includes: When a zeroing command is detected, if it is determined that there is external force on the pressure sensor, a preset prompting operation is executed; the prompting operation is used to prompt the user to remove the factors that cause external force to the pressure sensor. If it is determined that there is no external force on the pressure sensor, then adjust the zero-adjustment voltage input to the pressure sensor.

7. The method according to claim 5, characterized in that, The standard zero-adjustment voltage includes at least one of the zero-adjustment voltage after zeroing based on the zero-adjustment command and the actual zero-adjustment voltage obtained when the medical device was used last time.

8. A control device for a medical device, characterized in that, The device includes: The acquisition module is used to acquire the actual zero-adjustment voltage of the pressure sensor in the medical device before the medical device is put into operation; The first determining module is used to determine the detection result of the pressure sensor based on the actual zero-adjustment voltage and the preset standard zero-adjustment voltage. A control module is used to control the medical device based on the detection results.

9. An electronic device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, characterized in that, When the processor executes the computer program, it implements the method as described in any one of claims 1 to 7.

10. A computer program product, characterized in that, When a computer program product is run on an electronic device, the electronic device executes the method as described in any one of claims 1 to 7.

Images