Lung ultrasonic teaching and training simulation system and use method

Abstract

The invention relates to the technical field of medical instruments, and discloses a lung ultrasonic teaching and training simulation system and a use method. The system comprises a simulation probe, a patient model, a storage module and an ultrasonic image acquisition module, the simulation probe comprises a first positioning module and an angle checking module, and the patient model comprises a second positioning module; the first positioning module and the second positioning module determine the position information of the simulation probe on the patient model; the storage module is used for storing lung ultrasonic images of the plurality of simulation plates and position information generated by the first positioning module and the second positioning module; and the ultrasonic image acquisition module is used for acquiring and displaying a corresponding ultrasonic image in combination with the position information and the current simulation plate. According to the invention, the lung ultrasonic examination process can be effectively simulated, long-term special learning can be conveniently arranged by learners, and the training cost can be reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and particularly to a lung ultrasound teaching and training simulation system and a usage method thereof. Technical Background

[0002] Since the lungs are different from other solid organs, the lungs are air-filled organs. During ultrasound examination, sound waves are completely reflected, making it impossible to examine the internal structure of the lungs. It is a "forbidden zone" for ultrasound examination, and there is currently no ultrasound simulation for lung examination. In recent years, with in-depth research, it has been found that even though sound waves are reflected, the "artifact" information obtained by ultrasound can be matched with most lung diseases, with high sensitivity and specificity. Lung ultrasound has gradually been popularized in intensive care medicine departments, such as various ICUs, emergency departments, neonatal intensive care, pediatric intensive care, etc. Due to the advantages of lung ultrasound, such as accuracy, convenience, and non-invasiveness, it is recommended that medical institutions at all levels promote learning and application. The trainees are mainly clinical physicians, but the vast majority of clinical physicians have no experience in operating ultrasound and need to participate in short-term, long-term training or special further studies held by superior hospitals. Currently, the teaching methods only include theoretical courses and bedside practical operations, but the practical operations have drawbacks for both patients and learners. For patients, it increases the examination time, especially for newborns. A longer examination time is harmful to the diagnosis and treatment of critically ill patients, increases the risk of nosocomial infection for immunocompromised people such as newborns and the elderly, and a long-term ultrasound examination may increase the potential adverse risks of thermal effects, cavitation effects, and biological effects. For learners, the opportunity to operate is less, there are more onlookers, most training times are short, long-term special learning cannot be arranged, and the cost is usually high. Summary of the Invention

[0003] In order to solve the problems that the existing lung ultrasound teaching methods increase the examination time, infection risk, and potential adverse risks for patients, and the opportunity for learners to operate is less, the training time is short, and the cost is high, the present invention proposes a lung ultrasound teaching and training simulation system and a usage method, enabling learners to conduct sufficient practical operations in a risk-free environment and improving the learning efficiency and skill level.

[0004] To achieve the above object, the present invention adopts the following technical solutions:

[0005] In the first aspect, the present invention provides a lung ultrasound teaching and training simulation system,

[0006] including a simulation probe, a patient model, a storage module, and an ultrasound image acquisition module;

[0007] The simulation probe includes a first positioning module and an angle inspection module, and the patient model includes a second positioning module;

[0008] The first positioning module and the second positioning module determine the position information of the simulation probe on the patient model;

[0009] The storage module is used to store the lung ultrasound images of multiple simulation plates and the position information generated by the first positioning module and the second positioning module;

[0010] The ultrasound image acquisition module is used to acquire and display the corresponding ultrasound image by combining the position information and the current simulation plate.

[0011] Further, the patient model includes an adult model, a child model, and a neonatal model.

[0012] Further, the lung ultrasound images of the multiple simulation plates respectively include the ultrasound images of the normal lung conditions corresponding to each patient model, the ultrasound images of the abnormal lung conditions, the ultrasound images of different lesion degrees corresponding to the abnormal lung conditions, and the ultrasound images corresponding to the incorrect usage techniques of the simulation probe in each case.

[0013] Further, the angle inspection module includes an angle sensor; the angle sensor acquires the tilting angle of the simulation probe in real time and is used to determine whether the simulation probe is perpendicular to the chest wall.

[0014] Further, the first positioning module includes more than two first position sensors; the more than two first position sensors and the angle sensor are distributed on different vertical and horizontal planes.

[0015] Further, the second positioning module includes more than three second position sensors, and the more than three second position sensors are distributed on different vertical and horizontal planes.

[0016] Further, determining the position information of the simulation probe on the patient model by the first positioning module and the second positioning module includes:

[0017] Taking each second position sensor as the center of a sphere and the distance between each second position sensor and any one first position sensor as the radius, generating multiple spherical surfaces in three-dimensional space, and obtaining the position information of multiple intersection points formed by multiple spherical intersection curves;

[0018] Taking the distance between this first position sensor and any other first position sensor as the diameter to make a circle, determining the position information of the point located on the circle and coinciding with the multiple intersection points obtained above, and taking it as the position information of the current simulation probe.

[0019] In a second aspect, the present invention provides a usage method of a lung ultrasound teaching and training simulation system, including:

[0020] Step 1: Select a patient model according to the teaching or training purpose, and select the corresponding simulation plate;

[0021] Step 2: Perform simulated ultrasound scanning on the lungs of the patient model through the simulated probe;

[0022] The first positioning module of the simulated probe and the second positioning module of the patient model sense each other to determine the position information of the simulated probe;

[0023] Based on the tilt angle of the simulated probe obtained in real time by the angle sensor in the simulated probe, it is judged whether the current simulated probe is perpendicular to the chest wall. If so, the ultrasound image acquisition module acquires and displays the corresponding ultrasound image based on the position information and the current simulation plate; if not, the ultrasound image acquisition module acquires and displays the ultrasound image corresponding to the incorrect use method of the simulated probe based on the tilt angle, position information and the current simulation plate, and reminds of the error situation.

[0024] Compared with the prior art, the present invention has the following beneficial effects:

[0025] The present invention provides a lung ultrasound teaching and training simulation system and its usage method, which breaks through the limitations of traditional ultrasound for lung examinations, effectively simulates the process of lung ultrasound examinations, enables learners to perform sufficient practical operations in a risk-free environment, and improves learning efficiency and skill levels. The present invention can effectively avoid the increased examination duration, infection risks and potential adverse risks caused to patients by practical training, ensure patient safety, and is particularly suitable for special populations such as newborns and critically ill patients. The present invention can reduce training costs and time limitations, provide a more convenient and efficient learning tool for clinical physicians in medical institutions at all levels, and promote the popularization and application of lung ultrasound technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the embodiments of the present invention will be briefly introduced below. Obviously, the following described drawings are only some embodiments of the present invention, and those of ordinary skill in the art can also obtain other drawings based on these drawings without creative efforts.

[0027] Figure 1 It is a schematic structural diagram of a lung ultrasound teaching and training simulation system provided by an embodiment of the present invention;

[0028] Figure 2 It is one of the schematic diagrams of the method for confirming the position information of the simulated probe provided by an embodiment of the present invention;

[0029] Figure 3 It is the second of the schematic diagrams of the method for confirming the position information of the simulated probe provided by an embodiment of the present invention;

[0030] Figure 4Schematic diagram three of the method for confirming the position information of the simulation probe provided by the embodiment of the present invention;

[0031] Figure 5 Schematic diagram four of the method for confirming the position information of the simulation probe provided by the embodiment of the present invention. Detailed implementation manners

[0032] To make the objectives, technical solutions and advantages of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some but not all of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0033] As Figure 1 shown, the embodiment of the present invention provides a lung ultrasound teaching and training simulation system, including a simulation probe, a patient model, a storage module and an ultrasound image acquisition module;

[0034] The simulation probe includes a first positioning module and an angle inspection module, and the patient model includes a second positioning module;

[0035] The first positioning module and the second positioning module determine the position information of the simulation probe on the patient model;

[0036] The storage module is used to store the lung ultrasound images of multiple simulation plates and the position information generated by the first positioning module and the second positioning module;

[0037] The ultrasound image acquisition module is used to acquire and display the corresponding ultrasound image by combining the position information and the current simulation plate.

[0038] The patient model includes an adult model, a child model and a neonatal model.

[0039] The lung ultrasound images of the multiple simulation plates respectively include the ultrasound images of the normal lung conditions corresponding to each patient model, the ultrasound images of the abnormal lung conditions, the ultrasound images of different lesion degrees corresponding to the abnormal lung conditions, and the ultrasound images corresponding to the incorrect usage methods of the simulation probe in each case.

[0040] Specifically, the ultrasound images of the abnormal lung conditions at least include the ultrasound images corresponding to B-lines, alveolar interstitial syndrome, pleural line interruption, lung consolidation, lung point, double lung point, disappearance of lung sliding, shred sign, pulsation sign, lung island, and pleural effusion;

[0041] Specifically, the abnormal ultrasound images of the adult model and the child model should also include the ultrasound images corresponding to the bat sign;

[0042] The angle inspection module includes an angle sensor; the angle sensor obtains the tilting angle of the analog probe in real time for determining whether the analog probe is perpendicular to the chest wall.

[0043] As an implementable example, the specific ultrasonic images corresponding to the incorrect manipulation methods of the analog probe in each case may include the ultrasonic images corresponding to the tilting angles of the analog probe being 1° - 10°, 11° - 30°, 31° - 60°, and 61° - 90°.

[0044] The first positioning module includes more than two first position sensors; the more than two first position sensors and the angle sensor are distributed on different vertical and horizontal planes.

[0045] The second positioning module includes more than three second position sensors, and the more than three second position sensors are distributed on different vertical and horizontal planes. Specifically, the two-dimensional plane connection range of the more than three second position sensors should enclose the lung region of the patient model.

[0046] Determining the position information of the analog probe on the patient model through the first positioning module and the second positioning module includes:

[0047] Taking each second position sensor as the center of a sphere and the distance between each second position sensor and any one first position sensor as the radius to generate multiple spherical surfaces in three-dimensional space, and obtaining the position information of multiple intersection points formed by multiple spherical intersection curves;

[0048] Taking the distance between this first position sensor and any other first position sensor as the diameter to make a circle, determining the position information of the point located on the circle and coinciding with the multiple intersection points obtained above, and taking it as the current position information of the analog probe.

[0049] As an implementable example, the method for confirming the position information of the analog probe on the patient model is as Figures 2 to 5 shown. In three-dimensional space, assuming Figure 2 the known first position sensors A1, A2 (first positioning module) and second position sensors a1, a2, a3 (second positioning module), taking a1, a2 as the centers of spheres and the distances a1 - A1, a2 - A1 as the radii to make spherical surfaces, the intersection of the two spherical surfaces determines a curve (as Figure 3 ); taking a3 as the center of a sphere and the distance a3 - A1 as the radius to make a spherical surface, which intersects the curve at two points, namely point A1 and point M (as Figure 4 ); taking the midpoint of A1 - A2 as the center of the circle and the distance A1 - A2 as the diameter to make a circle, the position of the only intersection point A1 can be determined, that is, the current position of the analog probe is determined (as Figure 5 ).

[0050] It should be noted that the simulation probe moves relative to the patient model. That is, for the second position sensors a1, a2, a3 (the second positioning module), the first position sensors A1, A2 (the first positioning module) are moving. Determining the position of the first position sensor A1 or A2 can determine the position of the simulation probe.

[0051] The above method for confirming position information is only for understanding the solution and should be presented according to the actual situation in specific applications.

[0052] Based on the above embodiments, the embodiments of the present invention further provide a method for using a lung ultrasound teaching and training simulation system, including:

[0053] Step 1: Select a patient model according to the teaching or training purpose and select the corresponding simulation block;

[0054] Step 2: Through the simulation probe, perform a simulated ultrasound scan on the lungs of the patient model;

[0055] The first positioning module of the simulation probe and the second positioning module of the patient model interact to determine the position information of the simulation probe on the patient model;

[0056] Based on the inclination angle of the simulation probe obtained in real time by the angle sensor in the simulation probe, it is judged whether the current simulation probe is perpendicular to the chest wall. If so, the ultrasound image acquisition module acquires and displays the corresponding ultrasound image based on the position information and the current simulation block; if not, the ultrasound image acquisition module acquires and displays the ultrasound image corresponding to the incorrect use method of the simulation probe based on the inclination angle, position information, and the current simulation block, and reminds of the error situation.

[0057] Further, the simulation block includes:

[0058] The normal lung ultrasound simulation block and the abnormal lung ultrasound simulation block; the abnormal lung ultrasound simulation block includes the B-line simulation block, the alveolar interstitial syndrome simulation block, the pleural line interruption simulation block, the lung consolidation simulation block, the lung point simulation block, the bilateral lung point simulation block, the lung sliding disappearance simulation block, the shred sign simulation block, the pulsation sign simulation block, the lung island simulation block, the pleural effusion simulation block, the bat sign simulation block. The abnormal lung ultrasound simulation block in this embodiment also includes ultrasound simulation blocks corresponding to different degrees of lesions. Furthermore, each ultrasound simulation block in this embodiment should also include the ultrasound images generated by different inclination angles of the corresponding simulation probe, that is, the ultrasound images generated due to incorrect use methods when using each simulation block.

[0059] As an example, when simulating and learning neonatal lung consolidation, select the lung consolidation simulation module and place the simulation probe on the lung examination area of the neonatal model. When the operator's simulation probe usage technique is standard, that is, when the probe is perpendicular to the chest wall, a standard pathological ultrasound image is displayed, showing the lung consolidation with the "snowflake sign" unique to neonatal respiratory distress syndrome. Additionally, different degrees of lesions can be selected in the corresponding simulation module according to the actual teaching or training simulation progress to retrieve ultrasound images of different degrees of lesions. And as the simulation probe scans and moves in different areas, the ultrasound image follows the movement. When the operator's simulation probe usage technique is incorrect, that is, tilted, according to the tilt angle feedback by the angle sensor, a corresponding incorrect ultrasound image is displayed, and the operator is prompted that the current simulation probe usage technique is incorrect, the displayed ultrasound image is an incorrect ultrasound image, and a correction suggestion for the usage technique is marked. The operator adjusts the usage technique according to the actual situation until there is no longer an error reminder, that is, at this time the simulation probe usage technique is correct and the displayed ultrasound image is a correct ultrasound image. The operator can accurately and proficiently master the examination technique of lung ultrasound and the recognition of ultrasound images through this system.

[0060] Of course, the present invention can also have many other implementation manners. Without departing from the spirit and essence of the present invention, those skilled in the art can make various corresponding changes and deformations according to the present invention, but these corresponding changes and deformations should all fall within the protection scope of the appended claims of the present invention.

Claims

1. A lung ultrasound teaching and training simulation system, characterized in that: It includes a simulation probe, a patient model, a storage module and an ultrasound image acquisition module; The simulation probe includes a first positioning module and an angle checking module, and the patient model includes a second positioning module; The first positioning module and the second positioning module determine the position information of the simulation probe on the patient model; The storage module is used to store lung ultrasound images of multiple simulated plates and position information generated by the first positioning module and the second positioning module; The ultrasonic image acquisition module is used to acquire and display the corresponding ultrasonic image in combination with the position information and the current simulation plate.

2. A lung ultrasound teaching and training simulation system according to claim 1, characterized in that: The patient models include adult models, child models and neonatal models.

3. A lung ultrasound teaching and training simulation system according to claim 1, characterized in that: The lung ultrasound images of the multiple simulation blocks include normal lung ultrasound images and abnormal lung ultrasound images corresponding to each patient model, as well as ultrasound images of different degrees of lesions corresponding to the abnormal lung conditions and ultrasound images corresponding to errors in the use of simulated probes in each condition.

4. A lung ultrasound teaching and training simulation system according to claim 1, characterized in that: The angle checking module comprises an angle sensor; the angle sensor acquires the tilt angle of the analog probe in real time, so as to determine whether the analog probe is perpendicular to the chest wall.

5. A lung ultrasound teaching and training simulation system according to claim 1, characterized in that: The first positioning module includes more than two first position sensors; the more than two first position sensors and the angle sensor are distributed on different vertical planes and horizontal planes.

6. A lung ultrasound teaching and training simulation system according to claim 5, characterized in that: The second positioning module includes more than three second position sensors, and the more than three second position sensors are distributed on different vertical planes and horizontal planes.

7. A lung ultrasound teaching and training simulation system according to claim 6, characterized in that: Determining the position information of the simulated probe on the patient model by the first positioning module and the second positioning module includes: Taking each second position sensor as a sphere center and taking the distance between each second position sensor and any first position sensor as a radius, a plurality of spherical surfaces are generated in a three-dimensional space, and obtaining position information of a plurality of intersection points formed by intersection curves of the plurality of spherical surfaces; A circle is drawn with the distance between the first position sensor and any other first position sensor as its diameter, and the position information of the points on the circle that coincide with the multiple intersection points obtained above is determined, and the position information is used as the position information of the current analog probe.

8. A method for using a lung ultrasound teaching and training simulation system according to any one of claims 1 to 7, characterized in that: The following steps are included: Step 1: Select the patient model according to the teaching or training purpose and select the corresponding simulation module; Step 2: Using the simulated probe, simulate an ultrasound scan of the lungs of the patient model; The first positioning module of the simulation probe and the second positioning module of the patient model sense each other to determine the position information of the simulation probe; Based on the tilt angle of the simulated probe obtained in real time by the angle sensor in the simulated probe, it is determined whether the current simulated probe is perpendicular to the chest wall. If so, the ultrasound image acquisition module acquires and displays the corresponding ultrasound image based on the position information and the current simulation plate; otherwise, the ultrasound image acquisition module acquires and displays the ultrasound image corresponding to the error in the use of the corresponding simulated probe based on the tilt angle, position information and the current simulation plate, and reminds of the error.

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