A ring of the cricothyroid membrane puncture rescue simulation training method and system

Abstract

The application provides a cricothyroid membrane puncture rescue simulation training method and system, a cricothyroid membrane puncture rescue simulation training method comprising the following steps: step S1, starting an infrared locator, a pressure-sensitive puncture needle and a head-mounted display, and establishing a connection; step S2, calibrating the head-mounted display coordinates; step S3, the infrared locator determines the positions of the pressure puncture needle, the head-mounted display and the elastic simulation human body, and transmits the position information to the head-mounted display; step S4, the head-mounted display updates the position according to the received position information; step S5, the head-mounted display renders the training scene and produces environmental sound; step S6, the training personnel perform a cricothyroid membrane puncture action; step S7, the contact module in the head-mounted display judges whether the puncture reaches the specified position; step S8, when the training personnel puncture to the specified position, the pressure puncture needle is fixed, and training evaluation is prompted and given; and step S9, the training is completed. The beneficial effect is that the cost of training construction is controlled, and more realistic feedback experience can be given to students.

Description

Technical Field

[0001] This invention relates to the field of simulation training equipment technology, specifically to a method and system for simulation training of cricothyroid membrane puncture rescue. Background Technology

[0002] Cricothyroidotomy is an emergency treatment method used in clinical practice for patients with airway obstruction and severe respiratory distress. It can buy time for tracheotomy and is an important part of on-site emergency care.

[0003] The cricothyroid membrane puncture site is located on the midline of the neck, between the lower edge of the thyroid cartilage and the upper edge of the cricoid arch. The operator uses their left hand to palpate the puncture site, tautly stretching the skin on both sides of the puncture point with their thumb and middle finger. The right hand holds the cricothyroid membrane puncture needle or a large-bore needle and inserts it vertically. When the needle tip passes through the skin, fascia, and cricothyroid membrane and a feeling of resistance is felt, it indicates that the needle tip has entered the trachea. Remove the stylet; if air is expelled from the needle tip when both sides of the chest are squeezed, the puncture was successful. Secure the trocar appropriately to quickly establish an artificial airway and provide emergency care.

[0004] First aid training typically utilizes simulation teaching aids, which are relatively inexpensive. However, the simulation level of these aids is limited, and renting realistic training grounds, especially in battlefield environments or simulated artillery fire, is expensive. Each drill requires the preparation of new supplies and scenarios, making reuse impossible. Furthermore, trainees may suffer injuries from explosions or flying debris, posing a threat to their health. These factors combined make it difficult for trainees to experience realistic sensations and alleviate the psychological burden of surgery. This results in a lack of immersive training experience, significantly reducing training effectiveness and failing to meet user needs, thus hindering product competitiveness. Summary of the Invention

[0005] To address the problems in the existing technology, this invention provides a simulation training method and system for cricothyroid membrane puncture rescue.

[0006] The present invention provides a simulation training method for cricothyroid membrane puncture rescue, comprising the following steps:

[0007] Step S1: Activate the infrared locator, pressure-sensitive puncture needle, and head-mounted display, and establish a connection between the three.

[0008] Step S2: Calibrate and calibrate the virtual coordinate system within the head-mounted display and the coordinates in the real world;

[0009] Step S3: The infrared locator determines the position of the pressure-type puncture needle, the head-mounted display, and the elastic simulated human body, and transmits the position information to the head-mounted display.

[0010] Step S4: The head-mounted display updates the positions of the pressure-type puncture needle, the head-mounted display, and the elastic simulated human body in the virtual world based on the received position information.

[0011] Step S5: Render the training scene and generate ambient sound within the headset;

[0012] Step S6: The trainee picks up the pressure-sensitive puncture needle and performs a cricothyroid membrane puncture on the elastic simulated human body.

[0013] Step S7: The contact module inside the head-mounted display determines whether the puncture has reached the designated location;

[0014] Step S8: After the trainee inserts the needle to the designated position, fix the pressure needle, indicate that the puncture was successful, and give an evaluation of the training operation.

[0015] Step S9: Training ends.

[0016] The present invention is further improved, and the specific steps in step 3 of determining the location information by the infrared locator are as follows:

[0017] Step A1: Install reflective markers on the elastic simulated human body, the user's body, and the head-mounted display;

[0018] Step A2: The infrared locator continuously emits infrared light and receives the light reflected back from the elastic simulated human body and the reflective markers attached to the head-mounted display.

[0019] Step A3: The infrared locator obtains the real-time coordinate position information of the marked object based on parameters such as the angle, intensity and reflection time of the light, thereby determining the accurate position and posture of the head-mounted display and various parts of the user's body, and sends the captured position and posture data to the head-mounted display.

[0020] Step A4: After receiving the information, the head-mounted display updates the position and adjusts the posture of the virtual image in the virtual world of the head-mounted display, so that the user's actions in the virtual environment are consistent with the actual actions in reality.

[0021] The present invention is further improved in that the number of reflective markers installed on the elastic simulated human body in step A1 is three. The three reflective markers are respectively installed on the periphery of the neck of the elastic simulated human body, and the three reflective markers are spaced apart and arranged in a triangle.

[0022] The present invention is further improved by checking whether each device is started normally between step S1 and step S2. If it is not started normally, each device is checked.

[0023] In a further improvement, in step S7, a safe puncture depth range is obtained by manually measuring an elastic simulated human body at a specified location. The safe puncture depth range data is then entered into the head-mounted display system. The virtual world scene in the head-mounted display determines whether the puncture has reached the safe puncture depth range based on the distance recognition module and provides corresponding prompts.

[0024] The invention is further improved so that when the user's puncture depth exceeds the safe puncture depth range, the head-mounted display device will provide a warning of excessive puncture.

[0025] The present invention is further improved by including the following step between step S5 and step S6:

[0026] Step B1: The user palpates and locates the cricothyroid membrane, which is an elastic, simulated human body.

[0027] Step B2: The user adjusts the injured person's position and extends their neck;

[0028] Step B3: The user disinfects the neck.

[0029] In a further improvement to this invention, after the puncture is made to the designated location in step 8, the user approaches the elastic simulated human body to observe the breathing situation. When the user approaches the designated range, the virtual world of the head-mounted display simulates the patient's breathing sounds.

[0030] In a further improvement, before steps S4 and S5, a tool selection interface will pop up in the virtual world of the head-mounted display. The user can select the tools needed for this training. After the selection is completed, the selected tools will be rendered into the screen for the user to pick up in the virtual world.

[0031] The present invention also provides a system including a head display, an infrared locator, an elastic simulated human body, and a pressure-sensitive puncture needle, wherein reflective marking points are provided on the head display and the elastic simulated human body.

[0032] Compared with existing technologies, the beneficial effects of this invention are as follows: This invention provides a method and system for simulated cricothyroid membrane puncture first aid training, which effectively solves the problems of cost or poor training experience in existing first aid training methods. By using this method, trainees can be given a more realistic feedback experience. When trainees perform the puncture operation, they can not only feel the change in resistance as the scalpel cuts into the skin, but the pressure sensing system simulating the scalpel can also accurately reflect the cutting force. Moreover, the system simulates real effects through visual and sound effects, making trainees psychologically closer to real battlefield first aid scenarios. This realistic feedback experience helps trainees overcome psychological barriers, dare to perform the operation, further improve the effectiveness and practicality of training, enhance the training effect of trainees, and reduce the cost of training setup. Attached Figure Description

[0033] To more clearly illustrate the solutions in this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0034] Figure 1 This is a flowchart of a simulation training method for cricothyroid membrane puncture rescue according to the present invention;

[0035] Figure 2 This is a system block diagram of the present invention. Detailed Implementation

[0036] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used herein in the specification of the application is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms “comprising” and “having” and any variations thereof in the specification, claims and foregoing description of the drawings are intended to cover non-exclusive inclusion.

[0037] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0038] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings.

[0039] like Figure 2 As shown, a system includes a head-mounted display, an infrared locator, a flexible simulated human body, and a pressure-sensitive puncture needle. Reflective markers are provided on the head-mounted display and the flexible simulated human body.

[0040] The location of each component is identified by using reflective markers in conjunction with an infrared locator.

[0041] The elastic simulated human body is made of high-quality silicone, which has excellent flexibility and elasticity, and can well simulate the texture and touch of human skin, so that the operator feels as if they are facing a real human body when performing simulated puncture operations.

[0042] The structure employs a layered design, as detailed below:

[0043] Outer layer: Made of silicone, its surface texture is finely processed to simulate the microscopic texture of human skin, further enhancing the realistic feel.

[0044] Middle layer: Made of silicone composite material with elasticity and cushioning properties. This layer is designed to simulate the characteristics of human subcutaneous tissue. When the puncture needle penetrates the outer layer and continues to penetrate deeper, the middle layer can provide corresponding pressure resistance feedback, just like the feel when encountering subcutaneous fat, fascia and other tissues during a real puncture, allowing the operator to experience different resistance changes when cutting at different depths.

[0045] Inner layer: mainly filled with relatively high-density silicone, its function is to simulate the support of human bones or deep tissues. When the puncture needle cuts to a certain depth and touches this layer, the operator will feel a significant resistance, similar to the situation when encountering bone structures during a real puncture, thus completely replicating the change in cutting feel from the skin surface to deep tissues.

[0046] Infrared locators are also used for motion capture cameras.

[0047] This invention provides a monitoring method, such as Figure 1 As shown, this method is used in the above system. The detailed implementation method of the cricothyroid membrane puncture rescue simulation training in this example is as follows:

[0048] 1. Activate the infrared locator, pressure-sensitive puncture needle, and head-mounted display, and establish a connection between the three.

[0049] Before training, a connection is established to lay the foundation for subsequent real-time communication.

[0050] 2. Calibrate and calibrate the virtual coordinate system within the head-mounted display and the coordinates in the real world.

[0051] By calibrating the virtual coordinate system within the headset with the coordinates in the real world, the accuracy of training movements can be ensured when users are training with the headset. This allows for efficient training in conjunction with the elastic simulated human body, achieving a realistic tactile experience and a virtual simulation training scenario, thereby enhancing the user's training experience and improving training effectiveness.

[0052] The specific scheme for calibrating the virtual coordinate system within the head-mounted display and the coordinates in the real world has been disclosed in "A calibration method and system for the fusion of virtual and real coordinates based on XR technology" (patent application number: 202411528055.X), and will not be elaborated here.

[0053] 3. The infrared locator determines the position of the pressure-type puncture needle, the head-mounted display, and the elastic simulated human body, and transmits the position information to the head-mounted display.

[0054] Motion capture is achieved using an infrared locator, which, in conjunction with a head-mounted display, synchronizes virtual and real-world movements, improving training accuracy.

[0055] The specific steps for determining the location information using the infrared locator in step 3 are as follows:

[0056] Step A1: Install reflective markers on the elastic simulated human body, the user's body, and the head-mounted display;

[0057] Step A2: The infrared locator continuously emits infrared light and receives the light reflected back from the elastic simulated human body and the reflective markers attached to the head-mounted display.

[0058] Step A3: The infrared locator obtains the real-time coordinate position information of the marked object based on parameters such as the angle, intensity and reflection time of the light, thereby determining the accurate position and posture of the head-mounted display and various parts of the user's body, and sends the captured position and posture data to the head-mounted display.

[0059] Step A4: After receiving the information, the head-mounted display updates the position and adjusts the posture of the virtual image in the virtual world of the head-mounted display, so that the user's actions in the virtual environment are consistent with the actual actions in reality.

[0060] In step A1, three reflective markers are installed on the elastic simulated human body. The three reflective markers are installed on the outer periphery of the neck of the elastic simulated human body, and the three reflective markers are spaced apart and arranged in a triangle.

[0061] By arranging three reflective markers in a triangle, the system can generate three-dimensional coordinates during the training process using a pressure-sensitive puncture needle, making the three-dimensional coordinates of the movement more accurate and improving the user experience.

[0062] 4. The head-mounted display updates the positions of the pressure-type puncture needle, the head-mounted display, and the elastic simulated human body in the virtual world based on the received position information.

[0063] By updating the screen in real time through the headset, the user experience is enhanced, bringing an immersive training experience.

[0064] 5. Render training scenes and generate ambient sounds within the head-mounted display.

[0065] Rendering through a head-mounted display can create a special atmosphere of tension for users, such as battlefield first aid, thereby improving training effectiveness.

[0066] Before training, a tool selection interface will pop up in the virtual world of the headset. Users can select the tools needed for this training. After selection, the selected tools will be rendered into the screen for users to pick up in the virtual world, laying the foundation for subsequent complete first aid and first aid assessment.

[0067] 6. Trainees use a pressure-sensitive puncture device to perform cricothyroid membrane puncture on an elastic simulated human body.

[0068] Because it uses a pressure-sensitive puncture needle in combination with an elastic simulated human body, it can bring users a realistic tactile sensation and a more immersive experience.

[0069] Furthermore, the following steps are included before performing cricothyroid membrane puncture:

[0070] Step B1: The user palpates and locates the cricothyroid membrane, which is an elastic, simulated human body.

[0071] Step B2: The user adjusts the injured person's position and extends their neck;

[0072] Step B3: The user disinfects the neck.

[0073] 7. The contact module inside the head-mounted display determines whether the puncture has reached the designated location.

[0074] The headset has a built-in distance recognition module that can determine whether the user has moved to a designated location based on their movements.

[0075] In this step, a safe puncture depth range is determined by manually measuring an elastic simulated human body at a specified location. The safe puncture depth range data is then entered into the head-mounted display system. The virtual world scene in the head-mounted display determines whether the puncture has reached the safe puncture depth range based on the distance recognition module and provides corresponding prompts, thereby improving the user experience and training effectiveness.

[0076] 8. After the trainee inserts the needle to the designated location, fix the pressure needle, indicate that the puncture was successful, and provide an evaluation of the training operation.

[0077] By providing corresponding prompts and evaluations based on different situations, the training effect of trainees can be effectively improved.

[0078] After the puncture is completed at the designated location in step 8, the user approaches the elastic simulated human body to observe breathing. When the user gets close enough, the virtual world of the head-mounted display simulates the patient's breathing sounds.

[0079] 9. Training ends.

[0080] As can be seen from the above, this invention provides a method and system for simulated cricothyroid membrane puncture first aid training, which effectively solves the problems of cost or poor training experience in existing first aid training methods. By using this method, trainees can receive a more realistic feedback experience. When trainees perform the puncture, they can not only feel the change in resistance as the scalpel cuts into the skin, but the pressure sensing system simulating the scalpel accurately reflects the cutting force. Furthermore, the system simulates realistic effects through visual and sound effects, making trainees psychologically closer to real battlefield first aid scenarios. This realistic feedback experience helps trainees overcome psychological barriers, dare to perform the operation, further improves the effectiveness and practicality of the training, enhances the training effect, and reduces the cost of setting up the training facility.

[0081] The specific embodiments described above are preferred embodiments of the present invention and are not intended to limit the specific scope of the present invention. The scope of the present invention includes, but is not limited to, these specific embodiments. All equivalent changes made in accordance with the present invention are within the protection scope of the present invention.

Claims

1. A simulation training method for cricothyroid membrane puncture rescue, characterized in that, Includes the following steps: Step S1: Activate the infrared locator, pressure-sensitive puncture needle, and head-mounted display, and establish a connection between the three. Step S2: Calibrate and calibrate the virtual coordinate system within the head-mounted display and the coordinates in the real world; Step S3: The infrared locator determines the position of the pressure-type puncture needle, the head-mounted display, and the elastic simulated human body, and transmits the position information to the head-mounted display. Step S4: The head-mounted display updates the positions of the pressure-type puncture needle, the head-mounted display, and the elastic simulated human body in the virtual world based on the received position information. Step S5: Render the training scene and generate ambient sound within the headset; Step S6: The trainee picks up the pressure-sensitive puncture needle and performs a cricothyroid membrane puncture on the elastic simulated human body. Step S7: The contact module inside the head-mounted display determines whether the puncture has reached the designated location; Step S8: After the trainee inserts the needle to the designated position, fix the pressure needle, indicate that the puncture was successful, and give an evaluation of the training operation. Step S9: Training ends.

2. The method for simulated training of cricothyroid membrane puncture rescue according to claim 1, characterized in that: The specific steps for determining the location information using the infrared locator in step 3 are as follows: Step A1: Install reflective markers on the elastic simulated human body, the user's body, and the head-mounted display; Step A2: The infrared locator continuously emits infrared light and receives the light reflected back from the elastic simulated human body and the reflective markers attached to the head-mounted display. Step A3: The infrared locator obtains the real-time coordinate position information of the marked object based on parameters such as the angle, intensity and reflection time of the light, thereby determining the accurate position and posture of the head-mounted display and various parts of the user's body, and sends the captured position and posture data to the head-mounted display. Step A4: After receiving the information, the head-mounted display updates the position and adjusts the posture of the virtual image in the virtual world of the head-mounted display, so that the user's actions in the virtual environment are consistent with the actual actions in reality.

3. The method for simulated training in cricothyroid membrane puncture rescue according to claim 2, characterized in that: In step A1, three reflective markers are installed on the elastic simulated human body. The three reflective markers are installed on the outer periphery of the neck of the elastic simulated human body, and the three reflective markers are spaced apart and arranged in a triangle.

4. The method for simulated training in cricothyroid membrane puncture rescue according to claim 1, characterized in that: Between steps S1 and S2, each device is checked to see if it starts up normally. If it does not start up normally, each device is checked.

5. The method for simulated training in cricothyroid membrane puncture rescue according to claim 1, characterized in that: In step S7, a safe puncture depth range is obtained by manually measuring the elastic simulated human body at the specified location. The safe puncture depth range data is then entered into the head-mounted display system. The virtual world scene in the head-mounted display determines whether the puncture has reached the safe puncture depth range based on the distance recognition module and provides corresponding prompts.

6. The method for simulated training in cricothyroid membrane puncture rescue according to claim 5, characterized in that: If the user's puncture depth exceeds the safe puncture depth range, the head-mounted display will issue a warning of excessive puncture.

7. The method for simulated training in cricothyroid membrane puncture rescue according to claim 1, characterized in that: The following steps are also included between step S5 and step S6: Step B1: The user palpates and locates the cricothyroid membrane, which is an elastic, simulated human body. Step B2: The user adjusts the injured person's position and extends their neck; Step B3: The user disinfects the neck.

8. The method for simulated training in cricothyroid membrane puncture rescue according to claim 1, characterized in that: After the puncture is completed at the designated location in step 8, the user approaches the elastic simulated human body to observe the breathing situation. When the user approaches the designated range, the virtual world of the head-mounted display simulates the patient's breathing sounds.

9. The method for simulated training in cricothyroid membrane puncture rescue according to claim 1, characterized in that: Before steps S4 and S5, a tool selection interface will pop up in the head-mounted display virtual world. Users can select the tools needed for this training. After selection, the selected tools will be rendered on the screen for users to pick up in the virtual world.

10. A system for implementing the cricothyroid membrane puncture rescue simulation training method described in any one of the above claims, characterized in that: It includes a head-mounted display, an infrared locator, a flexible simulated human body, and a pressure-sensitive puncture needle. The head-mounted display and the flexible simulated human body are equipped with reflective markers.

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