Model ear training device and model ear manufacturing method thereof
By providing a model ear training device including model ears, pressure detection sheets and alarm components, the problem that the prior art cannot simulate the real environment of the ear canal is solved, and the ear canal operation skills of medical staff are improved and training costs are reduced.
Patent Information
- Application Number
- CN202411732461.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-29
- Publication Date
- 2025-02-14
AI Technical Summary
The existing endoscopic training methods cannot simulate the real environment of the ear canal, resulting in a lack of training for medical staff, difficulty in controlling the operation intensity, and poor ear canal operation skills.
A model ear training device is provided, including a model ear, a pressure detection sheet and an alarm assembly. The model ear is divided into solid external ear model, solid first ear model and solid second ear model. Through the disassembly and connection of these modules, an ear canal is formed, and a pressure detection tablet and alarm component are installed in the ear canal to detect and remind medical staff. operational strength.
By simulating the real ear canal environment, improve the ear canal operation skills of medical staff, reduce operation errors, avoid harm to patients, and reduce the cost of using the training device.
Smart Images
Figure CN119445924A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of medical equipment, and in particular to a model ear training device and a model ear manufacturing method thereof. Background Art
[0002] Commonly used ear endoscopy training methods in clinical practice include: picking up green pepper seeds, operating a simple ear canal model with a diameter of 1 cm, and tightening screws under endoscopy and other instrument exercises.
[0003] Currently, existing ear endoscopy training methods cannot simulate the real environment of the ear canal, and cadaver dissection training with a real environment is extremely expensive and difficult to obtain, resulting in a lack of training for medical staff, difficulty in controlling the force of operation, and poor ear canal operation skills.
[0004] Therefore, the prior art still needs to be improved and developed. Summary of the invention
[0005] The technical problem to be solved by the present invention is that, in view of the above-mentioned defects of the prior art, a model ear training device and a model ear manufacturing method are provided, aiming to solve the problem that the existing ear endoscope training method cannot simulate the real environment of the ear canal, and the anatomical training with a real environment is extremely expensive and difficult to obtain, resulting in the problem that medical staff lack training, have difficulty in controlling the operating force, and have poor ear canal operating skills.
[0006] The technical solution adopted by the present invention to solve the technical problem is as follows:
[0007] A model ear training device, comprising:
[0008] A model ear, the model ear comprising a physical outer ear model, a physical first ear model and a physical second ear model, the physical outer ear model, the physical first ear model and the physical second ear model are all detachably connected, a first channel is arranged in the physical first ear model, a second channel is arranged in the physical second ear model, and the physical first ear model is connected to the physical second ear model so that the first channel and the second channel form an ear canal;
[0009] A pressure detection sheet is arranged in the ear canal;
[0010] The alarm component is electrically connected to the pressure detection sheet and is used to collect pressure information and issue an alarm prompt.
[0011] Optionally, both ends of the ear canal are configured as opening structures, and the opening structure away from the physical outer ear model is used for allowing the wire of the pressure detection piece to pass through and connect with the alarm component.
[0012] Optionally, the alarm component includes:
[0013] A sensing module, the input end of which is connected to the pressure detection sheet;
[0014] A control display module, wherein an input end of the control display module is connected to an output end of the sensing module;
[0015] The alarm module is connected to the output end of the control and display module.
[0016] Optionally, the model ear training device further includes:
[0017] A camera module, the camera module is electrically connected to the control and display module, and the camera module is used for shooting;
[0018] The marking module is connected to the control and display module and is used to mark the training time when the alarm component sends out an alarm during the shooting process.
[0019] A method for manufacturing a model ear, wherein the model ear is applied to a model ear training device as described in any one of the above, and the method for manufacturing a model ear comprises the following steps:
[0020] Obtain CT scan data of the temporal bone;
[0021] constructing a three-dimensional ear model based on the CT scan data;
[0022] Cutting the three-dimensional ear model to obtain an outer ear model, a first ear model, and a second ear model;
[0023] 3D printing the outer ear model, the first ear model, and the second ear model to obtain a physical outer ear model, a physical first ear model, and a physical second ear model;
[0024] The physical first ear model, the physical second ear model and the physical external ear are connected to obtain the model ear.
[0025] Optionally, the step of constructing a three-dimensional ear model according to the CT scan data specifically includes:
[0026] Acquiring a grayscale value of the three-dimensional ear model;
[0027] The three-dimensional ear model is determined according to the grayscale value.
[0028] Optionally, the step of cutting the three-dimensional ear model to obtain the outer ear model, the first ear model and the second ear model specifically includes:
[0029] Obtain multiple junction base points between the auricle and the ear canal;
[0030] Determine a first cutting reference plane according to a plurality of said intersection base points;
[0031] Cutting the three-dimensional ear model according to the first cutting reference plane to obtain the outer ear model and the ear canal model;
[0032] Obtaining the center point of the ear canal model;
[0033] Determine a second cutting reference plane according to the center point and the first cutting reference plane;
[0034] The ear canal model is cut according to the second cutting reference plane to obtain the first ear model and the second ear model.
[0035] Optionally, the second cutting reference plane is perpendicular to the first cutting reference plane and is located on the center point.
[0036] Optionally, after the step of 3D printing the outer ear model, the first ear model and the second ear model to obtain a physical outer ear model, a physical first ear model and a physical second ear model, the manufacturing method further comprises:
[0037] The physical first ear model and the physical second ear model are processed to form a smooth ear canal.
[0038] Optionally, the 3D printing material of the physical outer ear model, the physical first ear model and the physical second ear model is a silicone material.
[0039] Beneficial effects:
[0040] The invention provides a model ear training device and a model ear manufacturing method thereof. The model ear is cut into three modules, namely, a solid outer ear model, a solid first ear model and a solid second ear model, which is not only convenient for assembly but also easy for individual maintenance and replacement, thereby reducing the use cost. The ear canals of the solid first ear model and the solid second ear model are divided into a first channel and a second channel, thereby making it easier for a pressure detection sheet to be closely attached to the first channel and the second channel, thereby reducing measurement errors and improving reliability. Furthermore, through the pressure detection sheet and an alarm component, when the medical staff operates an ear endoscope with excessive force, the alarm component collects alarm information and issues a reminder alarm. The model ear training device can be used for the medical staff's daily ear canal simulation training operation, thereby improving the medical staff's ear canal operation skills and avoiding injury to patients. BRIEF DESCRIPTION OF THE DRAWINGS
[0041] Figure 1 is a structural diagram of a model ear training device of the present invention;
[0042] Figure 2 is a structural diagram of the entity outer ear model of the present invention;
[0043] Figure 3 is a structural diagram of a physical first ear model of the present invention;
[0044] Figure 4 is a structural diagram of a physical second ear model of the present invention;
[0045] Figure 5 is a structural diagram of the pressure detection sheet of the present invention;
[0046] Figure 6 It is a flow chart of the method for manufacturing a model ear of the present invention.
[0047] In the figure:
[0048] 100. Physical outer ear model; 200. Physical ear canal model; 210. Physical first ear model; 211. First channel; 220. Physical second ear model; 221. Second channel; 230. Ear canal opening; 240. Opening structure; 250. First screw hole; 260. Second screw hole; 300. Pressure detection sheet; 410. Control display module; 420. Sensing module; 430. Alarm module; 440. Camera module; 450. Marking module. DETAILED DESCRIPTION
[0049] The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application, and cannot be understood as limiting the present application.
[0050] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present application, unless otherwise specified, "multiple" means two or more.
[0051] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.
[0052] See also Figure 1 to Figure 2 As shown, the present application provides a model ear training device, including a model ear, a pressure detection piece 300 and an alarm component, the model ear includes a physical outer ear model 100, a physical first ear model 210 and a physical second ear model 220, the physical outer ear model 100, the physical first ear model 210 and the physical second ear model 220 are all detachably connected, a first channel 211 is arranged in the physical first ear model 210, a second channel 221 is arranged in the physical second ear model 220, the physical first ear model 210 is connected to the physical second ear model 220 so that the first channel 211 and the second channel 221 form an ear canal; the pressure detection piece 300 is arranged in the ear canal, and the alarm component is electrically connected to the pressure detection piece 300 for collecting pressure information and issuing an alarm prompt.
[0053] Specifically, the present application provides a model ear training device, wherein the model ear is divided into a physical outer ear model 100, a physical first ear model 210 and a physical second ear model 220, wherein the physical outer ear model 100, the physical first ear model 210 and the physical second ear model 220 are all detachably connected, and the user can select a suitable disassembly method according to actual needs, so that the model ear of the device is convenient for separate repair and replacement, thereby reducing the cost of use; and then by dividing the ear canals of the physical first ear model 210 and the physical second ear model 220 into a first channel 211 and a second channel 221, the pressure detection piece 300 is easier to fit tightly in the first channel 211 and the second channel 221, thereby reducing measurement errors and improving reliability; and then by using the pressure detection piece 300 and the alarm component, when the medical staff operates the ear endoscope with too much force, the alarm component collects alarm information and issues an alarm prompt, and the model ear training device can be used for daily ear canal simulation training operations of medical staff, thereby improving the ear canal operation skills of medical staff and avoiding injury to patients.
[0054] It should be noted that, in the present application, the contact parts of the physical outer ear model 100, the physical first ear model 210 and the physical second ear model 220 in the model ear are all flat, so that the model ear fits well after assembly. Figure 2 As shown, the physical outer ear model 100 is in the shape of an auricle, and the other end is in the shape of a cuboid. Figure 3 As shown, the physical first ear model 210 is in the shape of a cuboid, and a first channel 211 is provided inside. Figure 4 As shown, the physical second ear model 220 is in the shape of a cuboid with a second channel 221 provided inside. The surface-to-surface contact method is advantageous for assembling the physical outer ear model 100, the physical first ear model 210 and the physical second ear model 220.
[0055] Furthermore, if Figure 5 As shown, the pressure detection sheet 300 is a resistive sensitive grid, also known as a resistive strain gauge, with a thickness of 0.1-0.3 mm and a certain flexibility. Two pressure detection sheets 300 are used, so that the two pressure detection sheets 300 are respectively installed in the first channel 211 and the second channel 221, which makes the fit more firm and makes the measured pressure data more reliable.
[0056] It can be understood that the pressure of the operating force refers to the pressure when the medical staff touches the inner wall of the ear canal when operating the otoscope. It can be set according to the experience of the medical staff. For example, 5-10Pa is painful, and 11-20Pa is no pain, where Pa is the unit of pressure.
[0057] In actual use, two resistive strain gauges are connected to a Wheatstone bridge circuit. When the user applies unknown pressure, the resistance of the resistive strain gauge changes, and a voltage is output. The change in resistance is then measured, and the corresponding pressure is calculated according to the formula.
[0058] The control display module 410 is used to calculate the pressure of the pressure detection sheet 300, and the specific calculation process is as follows:
[0059] The theoretical pressure is calculated based on the elastic modulus (E) and Poisson's ratio (ν) of the material:
[0060] The theoretical pressure formula is as follows: σ=Eε;
[0061] Where: σ is stress (unit: Pascal, Pa); E is the elastic modulus of the material (unit: Pascal, Pa); ε is strain (dimensionless, usually expressed as microstrain με).
[0062] The calibration and calibration process is as follows:
[0063] Use the linear regression method to fit the relationship curve between strain and pressure and obtain the calibration pressure:
[0064] The calibration pressure formula is as follows: P = aVout + b;
[0065] Where: P is the pressure (unit: Pascal, Pa); Vout is the output voltage of the bridge (unit: Volt, V); a and b are fitting parameters.
[0066] a and b need to be calibrated through experiments to obtain specific parameters, as follows:
[0067] First, apply a known pressure and gradually increase the known pressure value, each increase being a fixed amount, such as 10 Pa;
[0068] Then, at each known point, the output voltage Vout of the strain gauge is recorded;
[0069] Finally, the linear regression method is used to fit the relationship curve between pressure and output voltage, where a represents the slope and b represents the intercept, so that the values of a and b can be obtained.
[0070] The a and b values of the voltage detection sheet of the device are calculated through the above calculation steps, and then applied to the calibration formula. The output voltage of the resistance strain gauge is converted into a pressure value, which can accurately convert the resistance change of the strain gauge into a calibration pressure, thereby realizing accurate monitoring of the operating pressure.
[0071] Furthermore, the shape of the physical first ear model 210 is L-shaped, and the contact surface corresponding to the physical first ear model 210 and the physical second ear model 220 is provided with a first screw hole 250, and the number of the first screw holes 250 can be set according to the actual needs of the user, and the first bolt is used to assemble the physical first ear model 210 and the physical second ear model 220 to form the physical ear canal model 200; then, the contact surface of the physical ear canal model 200 and the physical outer ear model 100 is provided with a second screw hole 260, and the number of the second screw holes 260 can be set according to the actual needs of the user, and then the second bolt is used to connect the physical ear canal model 200 and the physical outer ear model 100 to form a model ear. It can be understood that since the physical ear canal model 200 is assembled by the physical first ear model 210 and the physical second ear model 220, the second screw hole 260 is set on the surface where both the physical first ear model 210 and the physical second ear model 220 contact the physical outer ear model 100.
[0072] See also Figures 3 to 5 As shown, in another embodiment of the present application, both ends of the ear canal are configured as opening structures 240, and the opening structure 240 facing away from the physical outer ear model 100 is used for allowing the wires of the pressure detection piece 300 to pass through and connect with the alarm component.
[0073] Specifically, there is an eardrum in the normal human ear canal, the inner end of the eardrum is a closed structure, and the outer end is an ear canal opening 230. In the present device, both ends of the ear canal are opening structures 240. The opening structure 240 of the ear canal close to one end of the physical external ear model 100 can be used for inserting an ear endoscope for operation, and the other end is used for the wires of the pressure detection piece 300 to extend out to connect the alarm component, so as to achieve the effect of hiding the wires. At the same time, it does not affect the training operation of the present device and improves the aesthetic effect of the device.
[0074] See also Figure 1 As shown, in another embodiment of the present application, the alarm component includes a sensing module 420, a control display module 410 and an alarm module 430, the input end of the sensing module 420 is connected to the pressure detection sheet 300, the input end of the control display module 410 is connected to the output end of the sensing module 420, and the alarm module 430 is connected to the output end of the control display module 410.
[0075] Specifically, the sensing module 420 refers to a device for processing the signal of the pressure detection piece 300. The pressure detection piece 300 is a resistive sensitive grid, and the sensing module 420 is an amplifier and a filter. The pressure detection piece 300 is electrically connected to the amplifier and the filter, and the amplifier and the filter can improve the signal-to-noise ratio and accuracy; the control display module 410 is a display with a built-in single-chip microcomputer, and the single-chip microcomputer is used to process the alarm signal sent by the sensing module 420 and display it on the display for medical staff to watch; the alarm module 430 is an alarm, which is electrically connected to the control display module 410 and is used to alarm according to the alarm prompt issued by the control display module 410, so as to remind medical staff to reduce the operating force. When this device is used for multiple trainings, it can cultivate good operating habits of medical staff.
[0076] See also Figure 1 As shown, in another embodiment of the present application, the model ear training device also includes a camera module 440 and a marking module 450. The camera module 440 is electrically connected to the control and display module 410. The camera module 440 is used for shooting. The marking module 450 is connected to the control and display module 410 and is used to mark the training time when the alarm component issues an alarm during the shooting process.
[0077] Specifically, the camera module 440 is a camera, which is installed on the control and display module 410. The lens of the camera module 440 is aligned with the model ear, so that the medical staff on the model ear can be photographed and recorded. For example, when the medical staff is training, the camera module 440 can be turned on to shoot. When the training operation is completed, the camera module 440 is turned off and uploaded to the control and display module 410. The control and display module 410 records the video time. The marking module 450 is installed in the control and display module 410. The marking module 450 uses a Python script to read the video and mark the alarm training time. In this way, after being processed by the marking module 450 and the control and display module 410, the control and display module 410 can distinguish the training time when the alarm module 430 issues a reminder during the training process and the training time when the alarm component does not issue a reminder, so that the medical staff can repeatedly watch the training time when the alarm component issues a reminder during the training time, which can further improve the operation skills and cultivate good operation habits of the medical staff.
[0078] See also Figure 6 As shown, the present application also provides a method for manufacturing a model ear, wherein the model ear is applied to a model ear training device as described in any one of the above, and the method for manufacturing a model ear comprises the following steps:
[0079] S100: Acquire CT scan data of the temporal bone.
[0080] Specifically, a CT scanner is a device that uses X-rays to scan the body from multiple angles and generates detailed cross-sectional images through computer processing. Volunteers or patients lie on the scanning bed, and medical staff use the CT scanner to generate temporal bone CT scan data of the volunteers or patients.
[0081] S200: constructing a three-dimensional ear model according to the CT scan data.
[0082] Specifically, the CT scan data of the frontal bone is imported into the three-dimensional software, and the ear part is screened out, so that a three-dimensional model of the ear can be constructed.
[0083] Furthermore, the three-dimensional ear model is constructed using three-dimensional software Mimics Medical.
[0084] Specifically, the three-dimensional software Mimics Medical is an advanced medical image processing software. By importing CT scan data of the temporal bones of volunteers or patients into Mimics Medical, a three-dimensional model of the ear can be generated in the three-dimensional software Mimics Medical.
[0085] S210, obtaining a grayscale value of the three-dimensional ear model;
[0086] S220. Determine the three-dimensional ear model according to the grayscale value.
[0087] Specifically, different tissues of the human body have different grayscale values on CT. By setting the corresponding ear grayscale value in the three-dimensional software, the ear three-dimensional model can be extracted from the temporal bone.
[0088] For example, in Mimics Medical:
[0089] Click new project, import image, and import the CT image;
[0090] Click SEGMENT--NEW MASK, threshold range: min-1024HU, max-205HU, to get the air mask;
[0091] Click SEGMENT--NEW MASK, threshold range: min-1024HU, max 3017HU, to obtain air + ear tissue mask;
[0092] Click SEGMENT--Crop mask, draw a rectangle, and select the required auricle, external auditory canal, and tympanic membrane area;
[0093] Click SEGMENT--Boolean Operations Modify, select air+ear tissue mask minus air mask, air+ear tissue mask minus air mask, to obtain the ear tissue mask;
[0094] Click the ear tissue mask, right-click Calculate Part--Calculate, and the software will calculate the three-dimensional model of the active ear tissue;
[0095] This enables the extraction of CT scan data of the ear and the construction of a three-dimensional model of the ear.
[0096] S300, cutting the three-dimensional ear model to obtain an outer ear model, a first ear model and a second ear model.
[0097] Specifically, in the 3D software Mimics Medical, the 3D ear model is cut to obtain the outer ear model, the first ear model and the second ear model. The outer ear model refers to the auricle part, and the first ear model and the second ear model refer to the ear canal part. By cutting the 3D ear model, the 3D ear model is cut into three modules, which is not only convenient for separate disassembly, maintenance and replacement, but also can reduce manufacturing costs.
[0098] The step S300 specifically includes:
[0099] S310, obtaining at least two junction base points of the auricle and the ear canal;
[0100] S320, determining a first cutting reference plane according to a plurality of the intersection base points;
[0101] S330. Cut the three-dimensional ear model according to the first cutting reference plane to obtain the outer ear model and the ear canal model.
[0102] Specifically, in the three-dimensional software Mimics Medical, at least two intersection base points are selected along the intersection of the auricle and the ear canal, wherein the intersection base points are the lowest point and the highest point of the auricle and the ear canal, and a first cutting reference plane is constructed, and then the auricle is offset by 0.5-1 cm to one end away from the auricle so that the auricle is completely separated from the first cutting reference plane. This arrangement makes the auricle on the formed outer ear model complete and has a plane, and the other ear canal model also has a plane, and they are assembled in a face-to-face contact manner so that the outer ear model and the ear canal model fit closely, thereby improving the quality of the model.
[0103] Exemplarily, in the three-dimensional software Mimics Medical, click 3D TOOLS--with Plane, draw a plane Plan1, place Plan1 at the junction of the auricle and the ear canal, and then offset 0.5-1 cm away from the auricle, and use Plan1 to cut the auricle and the ear canal.
[0104] S340, obtaining the center point of the ear canal model;
[0105] S350, determining a second cutting reference plane according to the center point and the first cutting reference plane;
[0106] S360: cutting the ear canal model according to the second cutting reference plane to obtain the first ear model and the second ear model;
[0107] Specifically, by using a measuring tool in the three-dimensional software Mimics Medical to measure the length of the ear canal, the center point of the ear canal is obtained, and then the second cutting reference plane is obtained based on the first cutting reference plane and the center point, and then the second cutting reference plane is used to cut into the first ear model and the second ear model, which is convenient for the subsequent installation of the pressure detection piece 300.
[0108] Furthermore, the second cutting reference plane is perpendicular to the first cutting reference plane and is located at the center point. Such a setting is conducive to evenly dividing the ear canal and facilitates the installation of the pressure detection piece 300.
[0109] For example, in the three-dimensional software Mimics Medical, click 3D TOOLS--with Plane, draw a plane Plan2, place it at the center point of the ear canal, and use plane Plan2 to be perpendicular to plane plan1, so as to divide the ear canal into two halves.
[0110] S400, 3D printing the outer ear model, the first ear model and the second ear model to obtain a physical outer ear model 100, a physical first ear model 210 and a physical second ear model 220.
[0111] Specifically, a 3D printing device is connected to a computer installed with the 3D software Mimics Medical, and suitable materials are selected to perform 3D printing on the outer ear model, the first ear model, and the second ear model. The material can be selected with a hardness that matches the human body, so that the printed physical outer ear model 100, the physical first ear model 210, and the physical second ear model 220 can more realistically simulate the human ear.
[0112] Furthermore, the 3D printing material of the physical outer ear model 100, the physical first ear model 210 and the physical second ear model 220 is a silicone material.
[0113] Specifically, silicone has excellent stability, temperature resistance and biocompatibility and is often used in medical products. The solid outer ear model 100, the solid first ear model 210 and the solid second ear model 220 made of silicone material have simple structures and low costs.
[0114] After step S400, the manufacturing method further includes:
[0115] The physical first ear model 210 and the physical second ear model 220 are processed to form smooth ear canals.
[0116] Specifically, a first channel 211 is provided in the physical first ear model 210, and a second channel 221 is provided in the physical second ear model 220. The first channel 211 and the second channel 221 may have potholes, which makes it difficult for the pressure detection sheet 300 to fit, affecting the measurement accuracy. Based on this, the first channel 211 and the second channel 221 are first polished with sandpaper to reduce the potholes, and then polished with a polishing cloth to form a smooth ear canal, so that the two pressure detection sheets 300 can fit closely with the first channel 211 and the second channel 221, respectively, to improve the measurement accuracy of the pressure detection sheet 300.
[0117] S500: Connect the physical first ear model 210, the physical second ear model 220 and the physical outer ear to obtain the model ear.
[0118] Specifically, see Figures 3 to 5 In order to facilitate the assembly and disassembly of the model, the shape of the physical first ear model 210 is L-shaped, and the contact surface corresponding to the physical first ear model 210 and the physical second ear model 220 is provided with a first screw hole 250, and the number of the first screw holes 250 can be set according to the actual needs of the user. The first bolt is used to assemble the physical first ear model 210 and the physical second ear model 220 to form the physical ear canal model 200; then, the contact surface of the physical ear canal model 200 and the physical outer ear model 100 is provided with a second screw hole 260, and the number of the second screw holes 260 can be set according to the actual needs of the user, and then the second bolt is used to connect the physical ear canal model 200 and the physical outer ear model 100 to form a model ear. It can be understood that since the physical ear canal model 200 is assembled by the physical first ear model 210 and the physical second ear model 220, the second screw hole 260 is set on the surface where the physical first ear model 210 and the physical second ear model 220 are in contact with the physical outer ear model 100.
[0119] In summary, the present invention provides a model ear training device and a model ear manufacturing method thereof. By cutting the model ear into three modules, namely, a solid outer ear model, a solid first ear model and a solid second ear model, it is not only convenient for assembly, but also easy for individual maintenance and replacement, thereby reducing the use cost. By dividing the ear canals of the solid first ear model and the solid second ear model into a first channel and a second channel, the pressure detection sheet is more easily attached to the first channel and the second channel, thereby reducing measurement errors and improving reliability. Furthermore, through the pressure detection sheet and the alarm component, when the medical staff operates the ear endoscope with too much force, the alarm component issues an alarm reminder. The model ear training device can be used for daily ear canal simulation training operations of medical staff, thereby improving the ear canal operation skills of medical staff and avoiding injury to patients. The model ear manufacturing method can manufacture a more anthropomorphic and realistic model ear, thereby making the detection data more accurate and reliable.
[0120] It should be understood that the application of the present invention is not limited to the above examples. For ordinary technicians in this field, improvements or changes can be made based on the above description. All these improvements and changes should fall within the scope of protection of the claims attached to the present invention.
Claims
1. A model ear training device, characterized in that: include: A model ear, the model ear comprising a physical outer ear model, a physical first ear model and a physical second ear model, the physical outer ear model, the physical first ear model and the physical second ear model are all detachably connected, a first channel is arranged in the physical first ear model, a second channel is arranged in the physical second ear model, and the physical first ear model is connected to the physical second ear model so that the first channel and the second channel form an ear canal; A pressure detection sheet is arranged in the ear canal; The alarm component is electrically connected to the pressure detection sheet and is used to collect pressure information and issue an alarm prompt.
2. A model ear training device according to claim 1, characterized in that: Both ends of the ear canal are arranged as opening structures, and the opening structure away from the physical outer ear model is used for allowing the wire of the pressure detection piece to pass through and be connected with the alarm component.
3. A model ear training device according to claim 1, characterized in that: The alarm component comprises: A sensing module, the input end of which is connected to the pressure detection sheet; A control display module, wherein an input end of the control display module is connected to an output end of the sensing module; The alarm module is connected to the output end of the control and display module.
4. A model ear training device according to claim 3, characterized in that: The model ear training device also includes: A camera module, the camera module is electrically connected to the control and display module, and the camera module is used for shooting; The marking module is connected to the control and display module and is used to mark the training time when the alarm component sends out an alarm during the shooting process.
5. A method for manufacturing a model ear, wherein the model ear is applied to the model ear training device according to any one of claims 1 to 4, characterized in that: The model ear manufacturing method comprises the following steps: Obtain CT scan data of the temporal bone; constructing a three-dimensional ear model based on the CT scan data; Cutting the three-dimensional ear model to obtain an outer ear model, a first ear model, and a second ear model; 3D printing the outer ear model, the first ear model, and the second ear model to obtain a physical outer ear model, a physical first ear model, and a physical second ear model; The physical first ear model, the physical second ear model and the physical external ear are connected to obtain the model ear.
6. The method for manufacturing a model ear based on 3D printing according to claim 5, characterized in that: The step of constructing a three-dimensional ear model according to the CT scan data specifically includes: Acquiring a grayscale value of the three-dimensional ear model; The three-dimensional ear model is determined according to the grayscale value.
7. The method for manufacturing a model ear based on 3D printing according to claim 6, characterized in that: The step of cutting the three-dimensional ear model to obtain the outer ear model, the first ear model and the second ear model specifically comprises: Obtain multiple junction base points between the auricle and the ear canal; Determine a first cutting reference plane according to a plurality of said intersection base points; Cutting the three-dimensional ear model according to the first cutting reference plane to obtain the outer ear model and the ear canal model; Obtaining the center point of the ear canal model; Determine a second cutting reference plane according to the center point and the first cutting reference plane; The ear canal model is cut according to the second cutting reference plane to obtain the first ear model and the second ear model.
8. The method for manufacturing a model ear based on 3D printing according to claim 7, characterized in that: The second cutting reference plane is perpendicular to the first cutting reference plane and is located on the center point.
9. The method for manufacturing a model ear based on 3D printing according to claim 5, characterized in that: After the step of 3D printing the outer ear model, the first ear model and the second ear model to obtain a physical outer ear model, a physical first ear model and a physical second ear model, the manufacturing method further comprises: The physical first ear model and the physical second ear model are processed to form a smooth ear canal.
10. The method for manufacturing a model ear based on 3D printing according to claim 5, characterized in that: The 3D printing material of the physical outer ear model, the physical first ear model and the physical second ear model is a silicone material.