Cardiopulmonary resuscitation emergency skill training device

Abstract

This invention belongs to the field of medical teaching aids technology, specifically a cardiopulmonary resuscitation (CPR) first aid skills training device, including a head training module, a neck connection module, a chest training module, a base platform, and a control module. The head module includes a head shell, a simulated oral cavity, an angle sliding shaft, and a sensing unit. The neck module is equipped with an automatic closing device to achieve coordinated airway opening and closing. The chest module incorporates a compression simulation unit, a vibration module, and electrode pressure pads. The control module coordinates data transmission and feedback from all units. This invention solves the problems of existing CPR training devices, such as limited functionality, inaccurate operation detection, unrealistic scenario simulation, delayed feedback, and scattered assessment data. These devices fail to provide comprehensive error correction guidance for trainees, struggle to recreate realistic scenarios such as airway obstruction and insufficient ventilation, resulting in poor training effectiveness and failing to meet the needs of precise clinical emergency training. This invention achieves accurate capture of the entire operation process, real-time feedback, and standardized assessment, improving the professionalism and practicality of the training.

Description

Technical Field

[0001] This invention belongs to the field of medical teaching aids technology, specifically referring to a cardiopulmonary resuscitation (CPR) first aid skills training device. Background Technology

[0002] Cardiopulmonary resuscitation (CPR) is an emergency rescue technique for patients who have suffered cardiac and respiratory arrest. It involves a combination of chest compressions and artificial respiration to temporarily replace spontaneous circulation and breathing, maintaining oxygen and blood supply to vital organs such as the brain.

[0003] Existing CPR training devices often suffer from problems such as limited functionality, delayed feedback, and low simulation scenario accuracy: they can only simply detect the force and frequency of chest compressions, failing to accurately determine the accuracy of the compression position; the simulation of opening the airway lacks mechanical feedback linkage, making it difficult for trainees to master the standard angle and force of the head-tilt / chin-lift maneuver; the artificial respiration process lacks a mechanism linking airflow simulation with airway patency, failing to reproduce real-life emergency scenarios such as airway obstruction and insufficient ventilation; furthermore, the assessment data for each operational step is scattered, failing to provide trainees with comprehensive operational error correction guidance, resulting in poor training effectiveness and failing to meet the precision requirements of clinical emergency training. Summary of the Invention

[0004] To address the above issues and overcome the shortcomings of existing technologies, this invention provides a cardiopulmonary resuscitation (CPR) first aid skills training device. To solve the problems of inaccurate operation detection, unrealistic scenario simulation, and incomplete feedback guidance in existing training devices, this device employs a fusion of mechanical linkage sensing and electrical signal acquisition. It incorporates a head posture sensing module, an automatic neck airway opening and closing mechanism, a precise chest compression detection unit, and an integrated control and feedback system. This achieves precise capture, real-time feedback, and standardized assessment of the entire CPR process, enhancing the realism of the training scenario and the effectiveness of operational guidance.

[0005] The technical solution adopted by this invention is as follows: This invention provides a cardiopulmonary resuscitation (CPR) first aid skills training device, including a head training module, a neck connection module, a chest training module, a base platform, and a control module. The chest training module is located above the base platform, the neck connection module is rotatably connected to the chest training module, the head training module is rotatably connected to the neck connection module, and the control module is located above the base platform. The modules are reasonably assembled to form a complete training carrier. The base platform provides stable support, and the control module acts as the core central hub to coordinate the operation of each module and realize the linkage and data processing of each operation link.

[0006] Furthermore, the chest training module includes a chest model and a compression simulation unit. The chest model is located above the base platform, and the compression simulation unit is located inside the chest model. The chest model simulates the structure of the human chest cavity, providing a force-bearing carrier that fits the human body for compression operations. The compression simulation unit accurately captures compression parameters and is the core component for realizing chest compression training and testing.

[0007] Furthermore, the chest cavity model is equipped with a vibration module, which is electrically connected to the control module. The vibration module can capture the mechanical signal of the shoulder tapping action and, together with the control module, determine whether the trainee has completed the "tapping" operation in the consciousness assessment, thereby improving the training and assessment function of the consciousness assessment link.

[0008] Furthermore, the neck connection module includes a neck model and an automatic closing device. The neck model is rotatably connected to the chest cavity model, and the automatic closing device is located inside the neck model. The neck model simulates the structure of the human neck, ensuring the flexibility of head posture adjustment. The automatic closing device is linked to head movements to simulate airway opening and closing, accurately reproducing the mechanical feedback of opening the airway and helping trainees master standard techniques.

[0009] Furthermore, the automatic closing device includes a simulated trachea, a sliding channel, an opening and closing slide plate, a channel plug, a channel slide rod, an opening and closing connecting rod, a traction groove, a limiting platform, and an airway spring. The simulated trachea is located within the neck model. The sliding channel intersects the simulated trachea perpendicularly. The opening and closing slide plate is slidably connected to the outer wall of the simulated trachea. The channel plug is slidably located within the sliding channel. The channel slide rod is located at the outer end of the channel plug. The opening and closing slide plate has an inclined groove, and the channel slide rod is slidably connected to the inclined groove. The limiting platform is... On the side wall of the simulated trachea, the opening and closing linkage is slidably connected to the limiting platform, one end of the airway spring is fixedly connected to the opening and closing slide plate, the other end of the airway spring is fixedly connected to the limiting platform, the opening and closing slide plate is fixedly connected to one end of the opening and closing linkage, and the traction slide is fixedly connected to the other end of the opening and closing linkage. The components form a mechanical linkage structure, which drives the opening and closing of the channel plug through changes in head posture, accurately simulating the state of airway patency and obstruction. At the same time, the airway spring provides a restoring force to ensure that the airway structure returns to its initial state after operation, realizing cyclical training.

[0010] Furthermore, the head training module includes a head shell, a simulated oral cavity, a rotating connecting shaft, an angle sliding shaft, and a sound module. The rotating connecting shaft is rotatably connected to the neck model, the head shell is rotatably connected to the rotating connecting shaft, the simulated oral cavity is connected through the head shell, the angle sliding shaft is located inside the head shell, the sound module is located inside the head shell, and the sound module is electrically connected to the control module. The head shell and the rotating connecting shaft work together to adjust the head posture. The simulated oral cavity provides a carrier for artificial respiration and foreign object removal operations. The angle sliding shaft is linked to the automatic neck closure device. The sound module captures calling voice signals to improve the assessment of consciousness judgment. All components work together to achieve training and testing of head-related operations.

[0011] Furthermore, the angle sliding shaft is slidably connected to the traction sliding groove. This connection establishes a linkage bridge between head posture and airway opening and closing, enabling head tilting and chin raising movements to directly drive the airway closing device, accurately reproducing the physiological mechanism of an open airway and enhancing the realism of the operation simulation.

[0012] Furthermore, the head shell is equipped with head electrode pressure pads at the forehead and jaw angle. The head electrode pressure pads are electrically connected to the control module. The head electrode pressure pads accurately capture the pressing position and force signals in the head-tilt / chin-lift maneuver and transmit them to the control module for judgment, providing trainees with accurate error correction guidance for opening the airway.

[0013] Furthermore, the head shell has a through-hole soft nasal cavity that is connected to a simulated oral cavity. The head shell also has an infrared sensing unit that is electrically connected to a control module. The soft nasal cavity simulates the structure of a human nasal cavity and works in conjunction with the simulated oral cavity to simulate airflow. The infrared sensing unit can detect the trainee's observation of breathing and chest rise and fall, thus improving the training in assessing vital signs in the early stages of emergency care.

[0014] Furthermore, the end of the simulated oral cavity extending into the head shell is connected to a head airway, which is equipped with a filter. The head airway is connected to the upper end of the simulated trachea. The chest cavity model is equipped with a chest cavity tube, one end of which is connected to a hollow cushion layer, and the other end of which is connected to the lower end of the simulated trachea. The airway and tube structure form a complete airflow channel, realizing the conduction of airflow and the inflation and expansion of the hollow cushion layer during artificial respiration, visually simulating the rise and fall of the chest. The filter can filter moisture in the exhaled air, preventing the inside of the device from getting damp and extending the service life of the equipment.

[0015] Furthermore, the compression simulation unit includes a compression plate, a reset chamber, a telescopic sleeve shaft, an inner sliding shaft, a pressure spring, and a transmission rack. The reset chamber is located inside the chest cavity model, the inner sliding shaft is located on the reset chamber, the telescopic sleeve shaft is slidably connected to the inner sliding shaft, the compression plate is located at the end of the telescopic sleeve shaft, one end of the pressure spring is fixedly connected to the bottom of the telescopic sleeve shaft, and the other end of the pressure spring is fixedly connected to the inner wall of the reset chamber. The transmission rack is located on the telescopic sleeve shaft. The compression plate directly bears the compression force, the telescopic sleeve shaft and the inner sliding shaft cooperate to ensure the vertical stability of the compression action, the pressure spring provides the compression rebound force to simulate the elasticity of the human chest cavity, and the transmission rack converts the linear compression motion into rotational motion, providing power transmission for compression parameter detection. It is the core structure for accurately capturing the compression intensity and frequency.

[0016] Furthermore, a drive shaft is rotatably connected inside the reset chamber, and a drive gear is fixedly connected to the drive shaft. The drive gear meshes with a drive rack, and a drive wheel is fixedly connected to the drive shaft. A magnetic pole sleeve is provided inside the reset chamber, and an induction coil is rotatably connected inside the magnetic pole sleeve. A ratchet is provided at the end of the induction coil, and the ratchet engages with a pawl on the drive wheel. A sensor is provided inside the reset chamber, and the end of the induction coil is rotatably connected to the sensor. The sensor is electrically connected to the control module. All components constitute a pressing parameter detection and signal conversion structure. The pressing action is converted into an electrical signal through the principle of electromagnetic induction. The ratchet ensures effective signal acquisition during pressing and no interference during rebound. The sensor transmits the signal to the control module, realizing accurate judgment and feedback of pressing force and frequency.

[0017] The beneficial effects of the cardiopulmonary resuscitation (CPR) skills training device provided in this solution are as follows: (1) In response to the problem of inaccurate pressure detection in existing devices, a combination of mechanical transmission and electromagnetic induction is adopted, and a pressure simulation unit and chest electrode pressure pads are set up to achieve triple accurate detection of pressure intensity, frequency and position, thus solving the technical problem that the standardization of chest compression operation cannot be quantitatively assessed. (2) By linking the head angle sliding shaft with the automatic neck closing device, the relationship between open airway operation and airway patency is simulated, and the real mechanical feedback of the head tilt and chin lift method is restored, which solves the problem of disconnect between airway simulation and actual operation in the existing device. (3) By using the hollow cushion layer, the chest cavity tube and the simulated airway to connect the artificial respiration action, the chest cavity can be simulated to rise and fall. Combined with the infrared sensing unit to detect and observe the action, the entire artificial respiration process can be visualized and detected, thus improving the realism of the scene simulation. (4) It integrates multiple sensing elements such as vibration module, sound module, and electrode pressure plate, covering the entire process of consciousness assessment, calling for help, chest compression, opening the airway, artificial respiration, and AED defibrillation, which solves the defects of existing devices that have only single function and can only detect some operations. (5) By using a ratchet one-way transmission structure, false detection signals are avoided during chest cavity rebound, improving the accuracy of compression data collection and providing reliable data support for training and assessment; (6) The filter design in the head airway can effectively filter water vapor, reduce the damage of internal parts to moisture, extend the service life of the device, and reduce the maintenance cost of training equipment. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of a cardiopulmonary resuscitation (CPR) first aid skills training device proposed in this invention; Figure 2 This is a schematic diagram of the chest training module; Figure 3 This is a structural schematic diagram of the neck connection module; Figure 4 This is a schematic diagram of the head training module. Figure 5 This is a cross-sectional view of the head training module; Figure 6 This is a schematic diagram of the automatic closing device; Figure 7 This is a cross-sectional view of an automatic closing device; Figure 8 This diagram shows the connection relationship between the head training module and the neck connection module. Figure 9 This is a schematic diagram of the chest training module; Figure 10 This is a schematic diagram of the pressing simulation unit; Figure 11 This is a diagram showing the transmission relationship of the pressing simulation unit.

[0019] The components include: 1. Head training module; 2. Neck connection module; 3. Chest training module; 4. Base platform; 5. Control module; 101. Head shell; 102. Simulated oral cavity; 103. Rotary connecting shaft; 104. Angle sliding shaft; 105. Sound module; 106. Head electrode pressure plate; 107. Soft nasal cavity; 108. Head airway; 109. Filter; 110. Infrared sensing unit; 201. Neck model; 202. Automatic closing device; 203. Simulated trachea; 204. Sliding channel; 205. Opening and closing slide plate; 206. Channel plug; 207. Channel slide bar; 208. Inclined slide groove; 209. Opening and closing connection. 210. Rod, 211. Traction chute, 212. Limiting platform, 213. Airway spring, 304. Chest model, 305. Compression simulation unit, 306. Chest electrode pressure pad, 307. Upper patch, 308. Lower patch, 309. Hollow pad, 300. Vibration module, 300. Chest tube, 301. Compression plate, 310. Reset chamber, 311. Telescopic sleeve shaft, 312. Inner sliding shaft, 313. Pressure spring, 314. Transmission rack, 315. Transmission gear, 316. Transmission shaft, 317. Transmission dial, 318. Ratchet, 319. Induction coil, 320. Magnetic pole sleeve, 321. Sensor.

[0020] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used together with the embodiments of the invention to explain the invention and do not constitute a limitation thereof. Detailed Implementation

[0021] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0022] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0023] like Figures 1-11As shown, the present invention provides a cardiopulmonary resuscitation (CPR) first aid skills training device, including a head training module 1, a neck connection module 2, a chest training module 3, a base platform 4, and a control module 5. The chest training module 3 is located above the base platform 4, the neck connection module 2 is rotatably connected to the chest training module 3, the head training module 1 is rotatably connected to the neck connection module 2, and the control module 5 is located above the base platform 4. The chest training module 3 includes a chest cavity model 301 and a chest compression simulation unit 302. The chest cavity model 301 is located above the base platform 4, and the chest compression simulation unit 302 is located inside the chest cavity model 301. The neck connection module 2 includes a neck model 201 and an automatic closure device 202. The neck model 201 is rotatably connected to the chest cavity model 301, and the automatic closure device 202 is located inside the neck model 201.

[0024] The head training module 1 includes a head shell 101, a simulated oral cavity 102, a rotating connecting shaft 103, an angle sliding shaft 104, and a sound module 105. The rotating connecting shaft 103 is rotatably connected to the neck model 201, the head shell 101 is rotatably connected to the rotating connecting shaft 103, the simulated oral cavity 102 is through-connected to the head shell 101, the angle sliding shaft 104 is located inside the head shell 101, and the sound module 105 is located inside the head shell 101 and electrically connected to the control module 5. The angle sliding shaft 104 is connected to the traction slide 21. The head shell 101 has a sliding connection. The forehead and jaw angle of the head shell 101 are provided with head electrode pressure plates 106, which are electrically connected to the control module 5. The face of the head shell 101 is provided with a through soft nasal cavity 107, which is connected to the simulated oral cavity 102. The face of the head shell 101 is provided with an infrared sensing unit 110, which is electrically connected to the control module 5. The end of the simulated oral cavity 102 that extends into the head shell 101 is connected to a head airway 108, and a filter 109 is provided in the head airway 108.

[0025] The automatic closure device 202 includes a simulated trachea 203, a sliding channel 204, an opening and closing slide plate 205, a channel plug 206, a channel slide rod 207, an opening and closing connecting rod 209, a traction slide 210, a limiting platform 211, and an airway spring 212. The simulated trachea 203 is installed on the neck model 201. Inside, the sliding channel 204 intersects perpendicularly with the simulated trachea 203. The opening and closing slide plate 205 is slidably connected to the outer wall of the simulated trachea 203. The channel plug 206 is slidably disposed inside the sliding channel 204. The channel slide rod 207 is disposed at the outer end of the channel plug 206. The opening and closing slide plate 205 is provided with an inclined slide groove 208. The channel slide rod 207 is slidably connected to the inclined slide groove 208. The limiting platform 211 is disposed on the side wall of the simulated trachea 203. The opening and closing connecting rod 209 is slidably connected to the limiting platform 211. One end of the airway spring 212 is fixedly connected to the opening and closing slide plate 205. The other end of the airway spring 212 is fixedly connected to the limiting platform 211. The opening and closing slide plate 205 is fixedly connected to one end of the opening and closing connecting rod 209. The traction slide groove 210 is fixedly connected to the other end of the opening and closing connecting rod 209.

[0026] The thoracic cavity model 301 has a vibration module 307 inside, which is electrically connected to the control module 5. A chest electrode pressure pad 303 is located on the outside of the thoracic cavity model 301, positioned at the midpoint of the nipples. Symmetrical upper patches 304 and lower patches 305 are located on the upper side of the outer side of the thoracic cavity model 301. A hollow padding layer 306 is also located on the outer side of the thoracic cavity model 301. The head airway 108 connects to the simulated trachea. The upper end of 203 is connected, and a thoracic cavity tube 308 is provided inside the thoracic cavity model 301. One end of the thoracic cavity tube 308 is connected to the hollow cushion layer 306, and the other end of the thoracic cavity tube 308 is connected to the lower end of the simulated trachea 203. The compression simulation unit 302 includes a compression plate 309, a reset chamber 310, a telescopic sleeve shaft 311, an inner sliding shaft 312, a pressure spring 313, and a transmission rack 314. The reset chamber 310 is located inside the thoracic cavity model 301, and the inner sliding shaft 312 is located on the reset chamber 310. The telescopic sleeve 311 is slidably connected to the inner sliding shaft 312. A pressing plate 309 is located at the end of the telescopic sleeve 311, corresponding to the chest electrode pressure plate 303. One end of the pressure spring 313 is fixedly connected to the bottom of the telescopic sleeve 311, and the other end is fixedly connected to the inner wall of the reset chamber 310. A transmission rack 314 is located on the telescopic sleeve 311. A transmission shaft 316 is rotatably connected inside the reset chamber 310, and a transmission gear 315 is fixedly connected to the transmission shaft 316. Wheel 315 is meshed with transmission rack 314. Transmission wheel 317 is fixedly connected to transmission shaft 316. Magnetic pole sleeve 320 is provided inside reset chamber 310. Induction coil 319 is rotatably connected inside magnetic pole sleeve 320. Ratchet 318 is provided at the end of induction coil 319. Ratchet 318 engages with pawl on transmission wheel 317. Sensor 321 is provided inside reset chamber 310. The end of induction coil 319 is rotatably connected to sensor 321. Sensor 321 is electrically connected to control module 5.

[0027] In practical use, adjustments can be made in advance according to the training program. For head training module 1, a foreign object can be added to the simulated oral cavity 102. For neck connection module 2, the rotation angle of the neck model 201 can be adjusted. For chest training module 3, the rebound pressure of the chest model 301 can be adjusted. Alcohol solution should be sprayed on the outer shell of each module beforehand to disinfect it. During training, the core procedures of cardiopulmonary resuscitation (CPR) are followed. The overall procedure is: condition assessment, calling for help, chest compressions, airway opening, artificial respiration, and AED defibrillation. The first step is to conduct condition assessment and calling for help training. Trainees must first disperse the onlookers (played by other participants) to provide an open environment for emergency treatment. Then, trainees need to assess the patient's (dummy's) consciousness by gently tapping the shoulders and calling loudly. This step is performed by the chest model 301. The vibration module 307 inside the head shell 101 and the sound module 105 inside the head shell 101 make judgments. The vibration module 307 captures the mechanical signal of the shoulder being patted through the impact sensor to determine whether there is a "light patting" action. The sound module 105 captures the voice signal through the microphone and audio processing, and judges whether there is a "loud shout" based on the decibel level and duration. Finally, the trainee needs to approach and observe the soft nasal cavity 107 and the simulated oral cavity 102, simulate hearing / feeling the airflow from the patient's mouth and nose, and observe the rise and fall of the chest for at least 10 seconds. This step can be judged by the signal received by the infrared sensing unit 110. After that, call for help immediately. The content of the call for help can include: calling for help, describing the symptoms, calling 120 for emergency help, and calling for an AED device. Similar to "Help! Someone has fainted! Call 120! Get an AED!"The second step involves chest compression training. To secure the critical four minutes after cardiac arrest (irreversible brain damage can occur after 4-6 minutes of oxygen deprivation), trainees must confirm the compression location: the lower half of the sternum (midpoint of the line connecting the nipples). The accuracy of the compression location is determined by the electrical signal output from the chest electrode pressure pad 303 at this point. Then, the trainee kneels beside the patient, overlapping their palms with fingers raised, arms straight, and upper body weight on their palms, pressing vertically downwards. During compression, the compression plate 309 is squeezed inwards, causing the telescopic sleeve 311 to slide downwards. The lower end of the telescopic sleeve 311 compresses the pressure spring 313, and the telescopic sleeve 311 slides together with the transmission rack 314. 314 drives the transmission gear 315 and transmission shaft 316 to rotate together. The transmission shaft 316 drives the transmission dial 317 to rotate. At this time, the pawl of the transmission dial 317 engages with the tooth groove of the ratchet 318. The rotation of the transmission dial 317 drives the ratchet 318 to rotate, and the rotation of the ratchet 318 drives the induction coil 319 to rotate. The rotation of the induction coil 319 cuts the magnetic field lines, and the current generated by the induction coil 319 is transmitted to the sensor 321. When the trainee stops pressing, the pressure spring 313 returns to its original position and pushes the pressing plate 309 and the telescopic sleeve shaft 311 to slide outward. The telescopic sleeve shaft 311 slides outward together with the transmission rack 314. The transmission rack 314 drives the transmission gear 315 and transmission shaft 316 to rotate in the opposite direction. The transmission shaft 316 drives the transmission gear 315 and transmission shaft 316 to rotate in the opposite direction. The transmission wheel 317 rotates in the reverse direction. At this time, the pawl of the transmission wheel 317 slides with the tooth groove of the ratchet 318, and the ratchet 318 stops rotating. At this time, the sensor 321 no longer receives current. During the training, the magnitude and frequency of the current received by the sensor 321 are used to determine whether the training personnel's compression force and number of compressions meet the CPR requirements. The third step is airway opening training. The trainee first needs to check whether there are foreign objects in the simulated oral cavity 102. If there are foreign objects, they need to be removed with fingers. Then, the head tilt-chin lift method is used to open the airway. The trainee presses the forehead area of ​​the skull 101 with the heel of one hand, and supports the jaw angle of the skull 101 with the index and middle fingers of the other hand. The electrical signal output by the head electrode pressure plate 106 in the above area is used to determine whether the training personnel's compression force and number of compressions meet the CPR requirements. Whether the pressing position is accurate, when the jaw angle of the head shell 101 is lifted, the head shell 101 rotates upward under the action of the rotating connecting shaft 103. The angle sliding shaft 104 rotates together with the head shell 101 and slides in the traction sliding groove 210. At the same time, it pulls the sliding groove 210 upward (towards the head shell 101). The traction sliding groove 210 is pulled and slides upward together with the opening and closing connecting rod 209 and the opening and closing sliding plate 205. The opening and closing sliding plate 205 and the limiting platform 211 squeeze the airway spring 212. Since the channel sliding rod 207 is slidably connected to the inclined sliding groove 208, the opening and closing sliding plate 205 drives the channel sliding rod 207 and the channel plug 206 to slide outward. At this time, the simulated trachea 203 is unobstructed, and the training steps of opening the airway are completed.The fourth step is artificial respiration training. Maintaining the head-tilt / chin-lift posture, the trainee presses firmly on the forehead area of ​​the skull 101, pinches the air inlets on both sides of the nostrils of the soft nasal cavity 107 to prevent air from entering, and completely covers the outer end of the simulated oral cavity 102 with their mouth, simulating mouth-to-mouth breathing. When the trainee exhales, the air passes sequentially through the simulated oral cavity 102, the head airway 108, the simulated trachea 203, and the chest tube 308, finally entering the hollow cushion 306. The hollow cushion 306 can be clearly observed to inflate and expand. When the trainee stops exhaling, the hollow cushion 306 rebounds, forcing the air out in the opposite direction from the simulated oral cavity 102. In this step, the filter 109 filters the trainee's exhaled air, reducing moisture and preventing the device from becoming damp. The fifth step is AED defibrillation training. Upon arrival, the AED should be used immediately. The trainee should power on the AED and, following the voice / illustration instructions, attach the AED's electrodes to the patient. The electrodes must be attached to the upper right chest and lower left chest, corresponding to the upper right electrode 304 and the lower left electrode 305 on the chest model 301, respectively. Only when the electrodes are correctly connected will the AED release a direct current pulse. If the electrodes are incorrectly connected, the AED will report an error. After the AED electrodes are correctly connected, it will analyze the heart rhythm. The trainee must then leave the patient. Subsequently, according to the training requirements, the trainee should control the AED to perform defibrillation. During defibrillation, ensure no one touches the patient. Immediately after defibrillation, resume 30:2 CPR (30 chest compressions and 2 rescue breaths). Then, according to the training requirements, repeat the cycle of AED defibrillation and rescue breaths until the training is completed.

[0028] The above is the specific workflow of this invention. This step can be repeated next time it is used.

[0029] It should be noted that, in this document, the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0030] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the invention.

[0031] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the spirit of the invention, such designs should fall within the protection scope of the present invention.

Claims

1. A cardiopulmonary resuscitation (CPR) first aid skills training device, characterized in that: The system includes a head training module (1), a neck connection module (2), a chest training module (3), a base platform (4), and a control module (5). The chest training module (3) is located above the base platform (4). The neck connection module (2) is rotatably connected to the chest training module (3), and the head training module (1) is rotatably connected to the neck connection module (2). The control module (5) is located above the base platform (4). The chest training module (3) includes a chest model (301) and a compression simulation unit (302). The chest model (301) is located above the base platform (4). Above the base platform (4), the pressing simulation unit (302) is located inside the chest cavity model (301); the neck connection module (2) includes a neck model (201) and an automatic closing device (202), the neck model (201) is rotatably connected to the chest cavity model (301), and the automatic closing device (202) is located inside the neck model (201); a hollow pad (306) is provided on the outside of the chest cavity model (301), one end of the automatic closing device (202) is connected to the head training module (1), and the other end is connected to the hollow pad (306).

2. The cardiopulmonary resuscitation (CPR) first aid skills training device according to claim 1, characterized in that: The automatic closing device (202) includes a simulated trachea (203), a sliding channel (204), an opening and closing slide plate (205), a channel plug (206), a channel slide rod (207), an opening and closing connecting rod (209), a traction slide groove (210), a limiting platform (211), and an airway spring (212). The simulated trachea (203) is located inside the neck model (201). The sliding channel (204) intersects the simulated trachea (203) perpendicularly. The opening and closing slide plate (205) is slidably connected to the outer wall of the simulated trachea (203). The channel plug (206) is slidably located inside the sliding channel (204). The channel slide rod (207) is located at the outer end of the channel plug (206). The opening and closing slide plate... (205) is provided with a slanted slide groove (208), the channel slide rod (207) is slidably connected to the slanted slide groove (208), the limiting platform (211) is provided on the side wall of the simulated air tube (203), the opening and closing connecting rod (209) is slidably connected to the limiting platform (211), one end of the airway spring (212) is fixedly connected to the opening and closing slide plate (205), the other end of the airway spring (212) is fixedly connected to the limiting platform (211), the opening and closing slide plate (205) is fixedly connected to one end of the opening and closing connecting rod (209), the traction slide groove (210) is fixedly connected to the other end of the opening and closing connecting rod (209), when the head training module (1) is lifted, it drives the traction slide groove (210) to slide upward.

3. The cardiopulmonary resuscitation (CPR) first aid skills training device according to claim 2, characterized in that: The head training module (1) includes a head shell (101), a simulated oral cavity (102), a rotating connecting shaft (103), an angle sliding shaft (104), and a sound module (105). The rotating connecting shaft (103) is rotatably connected to the neck model (201). The head shell (101) is rotatably connected to the rotating connecting shaft (103). The simulated oral cavity (102) is connected through the head shell (101). The angle sliding shaft (104) is located inside the head shell (101). The sound module (105) is located inside the head shell (101). The sound module (105) is electrically connected to the control module (5). The angle sliding shaft (104) is slidably connected to the traction slide (210).

4. The cardiopulmonary resuscitation (CPR) first aid skills training device according to claim 3, characterized in that: The compression simulation unit (302) includes a compression plate (309), a reset chamber (310), a telescopic sleeve shaft (311), an inner sliding shaft (312), a pressure spring (313), and a transmission rack (314). The reset chamber (310) is located inside the thoracic cavity model (301), the inner sliding shaft (312) is located on the reset chamber (310), the telescopic sleeve shaft (311) is slidably connected to the inner sliding shaft (312), and the compression plate (309) is located on the telescopic sleeve shaft (311). At the end of the device, one end of the pressure spring (313) is fixedly connected to the bottom of the telescopic sleeve shaft (311), and the other end of the pressure spring (313) is fixedly connected to the inner wall of the reset chamber (310). The transmission rack (314) is provided on the telescopic sleeve shaft (311). A transmission shaft (316) is rotatably connected inside the reset chamber (310). A transmission gear (315) is fixedly connected on the transmission shaft (316). The transmission gear (315) meshes with the transmission rack (314).

5. The cardiopulmonary resuscitation (CPR) first aid skills training device according to claim 4, characterized in that: A transmission wheel (317) is fixedly connected to the transmission shaft (316). A magnetic pole sleeve (320) is provided inside the reset chamber (310). An induction coil (319) is rotatably connected inside the magnetic pole sleeve (320). A ratchet (318) is provided at the end of the induction coil (319). The ratchet (318) cooperates with the pawl on the transmission wheel (317). A sensor (321) is provided inside the reset chamber (310). The end of the induction coil (319) is rotatably connected to the sensor (321). The sensor (321) is electrically connected to the control module (5).

6. The cardiopulmonary resuscitation (CPR) first aid skills training device according to claim 5, characterized in that: The thoracic cavity model (301) is equipped with a vibration module (307), which is electrically connected to the control module (5).

7. The cardiopulmonary resuscitation (CPR) first aid skills training device according to claim 6, characterized in that: The chest model (301) is provided with a chest electrode pressure pad (303) on the outside. The chest electrode pressure pad (303) is located at the midpoint of the nipple of the model. A symmetrical upper patch (304) is provided above the outside of the chest model (301), and a symmetrical lower patch (305) is provided below the outside of the chest model (301).

8. The cardiopulmonary resuscitation (CPR) first aid skills training device according to claim 7, characterized in that: The head shell (101) is provided with head electrode pressure pads (106) at the forehead and jaw angle, and the head electrode pressure pads (106) are electrically connected to the control module (5).

9. A cardiopulmonary resuscitation (CPR) first aid skills training device according to claim 8, characterized in that: The head shell (101) has a through soft nasal cavity (107) on its face, which is connected to the simulated oral cavity (102). The head shell (101) has an infrared sensing unit (110) on its face, which is electrically connected to the control module (5).

10. A cardiopulmonary resuscitation (CPR) first aid skills training device according to claim 9, characterized in that: The end of the simulated oral cavity (102) that extends into the head shell (101) is connected to the head airway (108). The head airway (108) is provided with a filter (109). The head airway (108) is connected to the upper end of the simulated trachea (203). The chest cavity model (301) is provided with a chest cavity tube (308). One end of the chest cavity tube (308) is connected to the hollow cushion layer (306), and the other end of the chest cavity tube (308) is connected to the lower end of the simulated trachea (203).

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