Interactive needle biopsy teaching system

Abstract

The invention, which belongs to the technical field of the teaching system, discloses an interactive needle biopsy teaching system comprising a teaching unit, an assessment unit, a VR unit and a puncture operation unit. The teaching unit is in communication connection with the assessment unit, the VR unit and the puncture operation unit; the teaching unit is used for login of a user, storage of multiple VR teaching materials, selection of the VR teaching materials of the user and storage of a teaching progress; each VR teaching material is matched with a puncture model; the puncture operation unit is used for simulating puncture biopsy operation; the assessment unit is used for checking puncture assessment by a user and assessing simulated puncture biopsy operation; the VR unit is used for playing VR teaching materials and collecting real-time image data of simulated needle biopsy operation. Through the above mode, the user can carry out immersive learning and operation simulation on the VR teaching materials based on the VR unit.

Description

Technical Field

[0001] The invention relates to the technical field of teaching systems, and in particular to an interactive puncture biopsy teaching system. Background Art

[0002] The puncture biopsy teaching system is a simulation training system specially used to train and improve the operation skills of medical workers in various puncture biopsy operations. With the breakthrough of VR technology, it is widely used in puncture biopsy operations.

[0003] Among many existing technologies, Chinese patent application CN115424485A discloses a puncture biopsy simulation system based on mixed reality and spatial micro-positioning technology, which includes: using different 3D printing materials and applying 3D printing technology to print a 3D printed human target part structure model; a computer host running a puncture training simulation software system; a micro-space positioning device connected to the computer host; and a mixed reality device connected to the computer host.

[0004] However, this patent application cannot realize the assessment of the user's simulated puncture biopsy.

[0005] Based on this, the present invention designs an interactive puncture biopsy teaching system to solve the above problems. Summary of the invention

[0006] In view of the above-mentioned shortcomings of the prior art, the present invention provides an interactive puncture biopsy teaching system.

[0007] To achieve the above objectives, the present invention is implemented through the following technical solutions:

[0008] An interactive puncture biopsy teaching system, comprising a teaching unit, an assessment unit, a VR unit and a puncture operation unit;

[0009] The teaching unit is communicatively connected with the assessment unit, the VR unit, and the puncture operation unit;

[0010] The teaching unit is used for user login, storage of multiple VR teaching materials, selection of user VR teaching materials and storage of teaching progress;

[0011] Each of the VR teaching materials is matched with a puncture model;

[0012] The puncture operation unit is used to simulate a puncture biopsy operation;

[0013] The assessment unit is used to verify the puncture assessment of the user and to assess the simulated puncture biopsy operation;

[0014] The VR unit is used for playing VR teaching materials and collecting real-time image data of simulated puncture biopsy operations, and building a virtual operating room based on the real-time image data;

[0015] The assessment unit is used interactively with the VR unit;

[0016] The puncture operation unit includes a wireless communication module, a central processing unit, a sensing unit and a puncture device;

[0017] The central processor is in communication connection with the wireless communication module and the sensing unit, the wireless communication module is in communication connection with the teaching unit and the VR unit, and the sensing unit is installed on the puncture device;

[0018] The puncture device is used in conjunction with the puncture model to perform a simulated puncture biopsy operation;

[0019] The sensing unit is used to collect the puncture operation parameters of the puncture device and send the puncture operation parameters to the central processor, which sends them to the wireless communication module;

[0020] The wireless communication module is used for wireless communication between the teaching unit and the central processing unit. The wireless communication module sends the puncture operation parameters to the teaching unit, and the teaching unit sends the puncture operation parameters to the assessment unit, which assesses the puncture operation parameters.

[0021] Furthermore, the teaching unit includes a user login module, a cloud server, a VR teaching material library and a teaching progress generation module;

[0022] The cloud server is connected to the user login module, the VR teaching material library, and the teaching progress generation module, and the cloud server is connected to the assessment unit and the wireless communication module;

[0023] The user login module is used for user identity authentication login;

[0024] The VR teaching material library is used to store VR teaching videos of various puncture models;

[0025] The teaching progress generation module is used for the user to select VR teaching videos;

[0026] And record the user's learning progress data for each VR teaching video;

[0027] The cloud server is used to receive the operating parameters sent by the wireless communication module;

[0028] The cloud server is used to retrieve VR teaching videos from the VR teaching material library and send VR teaching video data to the VR unit;

[0029] The cloud server is also used to retrieve the learning progress data of the teaching progress generation module and send the learning progress data to the assessment unit.

[0030] Furthermore, the assessment unit includes an assessment interaction module and an assessment verification module;

[0031] The assessment interaction module and the assessment verification module are both connected to the cloud server in communication, and the assessment interaction module is connected to the assessment verification module and the VR unit in communication;

[0032] The assessment interaction module is used in cooperation with the VR unit for interaction;

[0033] The assessment and verification module is used to verify the user's puncture model assessment request;

[0034] The assessment verification module is used to receive the learning progress data, and determine whether the puncture model corresponding to the VR teaching video meets the conditions for simulating puncture biopsy operation according to the learning progress data, and send an assessment instruction to the assessment interaction module if it meets the conditions;

[0035] The assessment interaction module receives the operation parameters sent by the cloud server;

[0036] The assessment interaction module is used to send simulation instructions to the VR unit when the puncture model complies with the simulated puncture biopsy operation;

[0037] The assessment interaction module stores standard operation parameters corresponding to the puncture model operation;

[0038] The assessment interactive module compares the operating parameters with the corresponding standard operating parameters and determines whether the simulated puncture biopsy operation is qualified.

[0039] Furthermore, the VR unit includes a camera and a wireless VR helmet;

[0040] The wireless VR helmet is connected to the camera, the cloud server, and the assessment interaction module;

[0041] Wireless VR helmet and assessment interactive module are used interactively;

[0042] The camera is used to simulate the collection of real-time video data of the puncture biopsy operation and send the data to the wireless VR helmet;

[0043] The wireless VR helmet is used to receive simulation instructions, and when receiving the instructions, the wireless VR helmet constructs a virtual operating room based on the puncture model in the video data based on the graphics algorithm.

[0044] Furthermore, the puncture operation parameters include the puncture angle value, force value and depth value of the puncture device;

[0045] The sensing unit includes a piezoelectric sensor, a distance sensor and a three-axis sensor;

[0046] The piezoelectric sensor, distance sensor, and triaxial sensor are all electrically connected to the central processing unit;

[0047] The piezoelectric sensor, distance sensor, and triaxial sensor are all fixedly mounted on the puncture device;

[0048] The piezoelectric sensor is used to detect the puncture force value of the puncture device;

[0049] The distance sensor is used to detect the puncture depth value of the puncture device;

[0050] The three-axis sensor is used to detect the puncture angle value of the puncture device.

[0051] Furthermore, each of the puncture models is sprayed with a unique number, and the unique number matches the file name of the VR teaching video;

[0052] The assessment and verification module determines whether the puncture model meets the conditions for simulating puncture biopsy operation by following the steps A:

[0053] Step A1, assess whether the model E is greater than 90% for identification;

[0054] Step A2: If yes, the assessment verification module verifies that the puncture model meets the assessment conditions, the assessment verification module agrees to the user's assessment request, and sends an assessment instruction to the assessment interaction module that the puncture model is allowed to be assessed;

[0055] Step A3: If the answer is no, the assessment verification module determines that the puncture model does not meet the assessment conditions, and the assessment verification module rejects the user's assessment request.

[0056] Furthermore, when the assessment interaction module receives the assessment instruction, it adopts the following steps B;

[0057] Step B1, 7 identifies the serial number of the puncture model in the virtual operating room, and identifies whether the puncture model is the same as the puncture model to be assessed based on the serial number;

[0058] Step B2: If they are the same, the assessment interaction module sends a message of allowing assessment to the wireless VR helmet;

[0059] The user operates the puncture device to perform a simulated puncture biopsy operation on the puncture model;

[0060] When the operation is completed, the assessment interactive module calculates the percentage difference between the puncture angle value, force value and depth value in the operation parameters and the standard angle value, standard force value and standard depth value of the standard operation parameters respectively;

[0061] And based on whether the average of the three percentage difference rates is less than or equal to the set threshold S;

[0062] If it is less than that, the assessment interaction module determines that the puncture model has passed the assessment and sends the words "passed the assessment" to the wireless VR helmet;

[0063] If it is greater, the assessment interaction module determines that the puncture model has failed the assessment and sends a message of failure to the wireless VR helmet;

[0064] Step B3: If they are not the same, the assessment interaction module sends a model error message to the wireless VR helmet.

[0065] Furthermore, the wireless VR helmet will display the received words "passed assessment", "failed assessment", "model error" and "allowed assessment".

[0066] Compared with the prior art, the present invention has the following beneficial effects: when the present invention is used, the teaching unit cooperates with the VR unit to enable the user to immerse himself in the VR teaching material based on the VR unit;

[0067] When the present invention is used, the puncture operation unit performs a simulated puncture biopsy operation on the puncture model, and the virtual operating room constructed by the VR unit provides an immersive gesture environment for the user when simulating the puncture biopsy operation;

[0068] When the present invention is used, the assessment unit enables the user to assess and verify the simulated puncture biopsy operation of the puncture model, as well as the puncture operation parameters and assessment judgment during the assessment, thereby improving the accuracy of the assessment;

[0069] When the present invention is used, the interactivity of the assessment is achieved through the interactive use of the assessment unit and the VR unit; BRIEF DESCRIPTION OF THE DRAWINGS

[0070] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the prior art descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0071] Figure 1 A block diagram of an interactive puncture biopsy teaching system of the present invention;

[0072] Figure 2 is a block diagram of a sensing unit of the present invention;

[0073] Figure 3 It is a schematic diagram of the puncture device and the sensing unit of the present invention.

[0074] The numbers in the figure represent:

[0075] 1. User login module 2. Cloud server 3. Wireless communication module 4. Central processing unit 5. Sensing unit 51. Piezoelectric sensor 52. Distance sensor 53. Three-axis sensor 6. Camera 7. Assessment interaction module 8. Assessment verification module 9. Wireless VR helmet 10. VR teaching material library 11. Teaching progress generation module 12. Puncture device. DETAILED DESCRIPTION

[0076] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0077] Embodiment 1: In some embodiments, please refer to the drawings of the specification Figure 1-Figure 3 , an interactive puncture biopsy teaching system, including a teaching unit, an assessment unit, a VR unit and a puncture operation unit;

[0078] The teaching unit is connected to the assessment unit, VR unit, and puncture operation unit by communication;

[0079] The teaching unit is used for user login, storage of multiple VR teaching materials, selection of VR teaching materials by users, and storage of teaching progress;

[0080] Each VR teaching material is matched with a puncture model;

[0081] The puncture operation unit is used to simulate the puncture biopsy operation;

[0082] The assessment unit is used to verify the user's puncture assessment and to assess the simulated puncture biopsy operation;

[0083] The VR unit is used to play VR teaching materials and collect real-time image data for simulated puncture biopsy operations, and to build a virtual operating room based on real-time image data;

[0084] The assessment unit and VR unit are used interactively;

[0085] The puncture operation unit includes a wireless communication module 3, a central processing unit 4, a sensing unit 5 and a puncture device 12;

[0086] The central processor 4 is in communication connection with the wireless communication module 3 and the sensing unit 5. The wireless communication module 3 is in communication connection with the teaching unit and the VR unit. The sensing unit 5 is installed on the puncture device 12.

[0087] The puncture device 12 is used to cooperate with the puncture model to perform a simulated puncture biopsy operation;

[0088] The sensing unit 5 is used to collect the puncture operation parameters of the puncture device 12 and send the puncture operation parameters to the central processor 4, and the central processor 4 sends them to the wireless communication module 3;

[0089] The wireless communication module 3 is used for wireless communication between the teaching unit and the central processor 4. The wireless communication module 3 sends the puncture operation parameters to the teaching unit, and the teaching unit sends the puncture operation parameters to the assessment unit, which assesses the puncture operation parameters.

[0090] When the present invention is used, the teaching unit cooperates with the VR unit to enable the user to immerse himself in learning VR teaching materials based on the VR unit;

[0091] When the present invention is used, the puncture operation unit performs a simulated puncture biopsy operation on the puncture model, and the virtual operating room constructed by the VR unit provides an immersive gesture environment for the user when simulating the puncture biopsy operation;

[0092] When the present invention is used, the assessment unit enables the user to assess and verify the simulated puncture biopsy operation of the puncture model, as well as the puncture operation parameters and assessment judgment during the assessment, thereby improving the accuracy of the assessment;

[0093] When the present invention is used, the interactivity of the assessment is achieved through the interactive use of the assessment unit and the VR unit;

[0094] Embodiment 2: In some embodiments, Figure 1-Figure 3 As shown, as a preferred embodiment of the present invention,

[0095] The teaching unit includes a user login module 1, a cloud server 2, a VR teaching material library 10 and a teaching progress generation module 11;

[0096] The cloud server 2 is connected to the user login module 1, the VR teaching material library 10, and the teaching progress generation module 11, and the cloud server 2 is connected to the assessment unit and the wireless communication module 3;

[0097] User login module 1 is used for user identity authentication login;

[0098] The VR teaching material library 10 is used to store VR teaching videos of various puncture models;

[0099] The teaching progress generation module 11 is used for users to select VR teaching videos;

[0100] And record the user's learning progress data for each VR teaching video;

[0101] The cloud server 2 is used to receive the operation parameters sent by the wireless communication module 3;

[0102] The cloud server 2 is used to retrieve the VR teaching videos from the VR teaching material library 10 and send the VR teaching video data to the VR unit;

[0103] The cloud server 2 is also used to retrieve the learning progress data of the teaching progress generation module 11 and send the learning progress data to the assessment unit;

[0104] The assessment unit includes an assessment interaction module 7 and an assessment verification module 8;

[0105] The assessment interaction module 7 and the assessment verification module 8 are both connected to the cloud server 2 in communication, and the assessment interaction module 7 is connected to the assessment verification module 8 and the VR unit in communication;

[0106] Assessment interactive module 7 is used interactively with the VR unit;

[0107] The assessment and verification module 8 is used to verify the user's puncture model assessment request;

[0108] The assessment verification module 8 is used to receive the learning progress data, and determine whether the puncture model corresponding to the VR teaching video meets the conditions for simulating puncture biopsy operation according to the learning progress data, and send an assessment instruction to the assessment interaction module 7 if it meets the conditions;

[0109] The assessment interaction module 7 receives the operation parameters sent by the cloud server 2;

[0110] The assessment interaction module 7 is used to send simulation instructions to the VR unit when the puncture model complies with the simulated puncture biopsy operation;

[0111] The assessment interaction module 7 stores standard operation parameters corresponding to the puncture model operation;

[0112] The assessment interactive module 7 compares the operation parameters with the corresponding standard operation parameters and determines whether the simulated puncture biopsy operation is qualified;

[0113] The VR unit includes a camera 6 and a wireless VR helmet 9;

[0114] The wireless VR helmet 9 is in communication connection with the camera 6, the cloud server 2, and the assessment interaction module 7;

[0115] The wireless VR helmet 9 is used in cooperation with the assessment interaction module 7;

[0116] The camera 6 is used to collect real-time video data of the simulated puncture biopsy operation and send the data to the wireless VR helmet 9;

[0117] The wireless VR helmet 9 is used to receive simulation instructions, and when receiving the instructions, the wireless VR helmet 9 builds a virtual operating room based on the puncture model in the video data based on the graphic algorithm;

[0118] The puncture operation parameters include the puncture angle value, force value and depth value of the puncture device 12;

[0119] The sensing unit 5 includes a piezoelectric sensor 51, a distance sensor 52 and a three-axis sensor 53;

[0120] The piezoelectric sensor 51, the distance sensor 52, and the three-axis sensor 53 are all electrically connected to the central processor 4;

[0121] The piezoelectric sensor 51, the distance sensor 52, and the three-axis sensor 53 are all fixedly mounted on the puncture device 12;

[0122] The piezoelectric sensor 51 is used to detect the puncture force value of the puncture device 12;

[0123] The distance sensor 52 is used to detect the puncture depth value of the puncture device 12;

[0124] The three-axis sensor 53 is used to detect the puncture angle value of the puncture device 12 .

[0125] Embodiment 3: In some embodiments, Figure 1-Figure 3 As shown, as a preferred embodiment of the present invention, each puncture model is sprayed with a unique number, and the unique number matches the file name of the VR teaching video;

[0126] The assessment and verification module 8 determines whether the puncture model meets the conditions for simulating puncture biopsy operation by adopting the following steps A;

[0127] Step A1, the assessment verification module 8 identifies whether the learning progress data corresponding to the puncture model selected by the user for assessment is greater than 90%;

[0128] Step A2: If yes, the assessment verification module 8 verifies that the puncture model meets the assessment conditions, the assessment verification module 8 agrees to the user's assessment request, and sends an assessment instruction to the assessment interaction module 7 that the puncture model is allowed to be assessed;

[0129] Step A3: if the answer is no, the assessment verification module 8 determines that the puncture model does not meet the assessment conditions, and the assessment verification module 8 rejects the user's assessment request;

[0130] When the assessment interaction module 7 receives the assessment instruction, it adopts the following steps B;

[0131] Step B1, 7 identifies the serial number of the puncture model in the virtual operating room, and identifies whether the puncture model is the same as the puncture model to be assessed based on the serial number;

[0132] Step B2: If they are the same, the assessment interaction module 7 sends a message of allowing assessment to the wireless VR helmet 9;

[0133] The user operates the puncture device 12 to perform a simulated puncture biopsy operation on the puncture model;

[0134] When the operation is completed, the assessment interactive module 7 calculates the percentage difference between the puncture angle value, force value and depth value in the operation parameters and the standard angle value, standard force value and standard depth value of the standard operation parameters respectively;

[0135] And based on whether the average of the three percentage difference rates is less than or equal to the set threshold S;

[0136] If it is less than, the assessment interaction module 7 determines that the puncture model has passed the assessment, and sends the words "passed the assessment" to the wireless VR helmet 9;

[0137] If it is greater, the assessment interactive module 7 determines that the puncture model fails the assessment and sends a message of failure to the wireless VR helmet 9;

[0138] Step B3, if they are not the same, the assessment interaction module 7 sends a model error message to the wireless VR helmet 9;

[0139] The wireless VR helmet 9 displays the received words "pass the assessment", "fail the assessment", "model error" and "allow the assessment".

[0140] The wireless VR helmet 9 is used in conjunction with the assessment interaction module 7 to achieve interaction with the user, thereby improving the interactivity of the assessment.

[0141] In the present invention, the calculation formula of the percentage difference rate is |value 1-value 2| / value 1×100%;

[0142] For example, if the angle value 1 is 30 and the standard angle value 2 is 40, then the percentage difference rate is |30-40| / 30×100%;

[0143] In the present invention, the threshold value S is 5%;

[0144] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. Such modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. An interactive puncture biopsy teaching system, characterized by: It includes teaching unit, assessment unit, VR unit and puncture operation unit; The teaching unit is communicatively connected with the assessment unit, the VR unit, and the puncture operation unit; The teaching unit is used for user login, storage of multiple VR teaching materials, selection of user VR teaching materials and storage of teaching progress; Each of the VR teaching materials is matched with a puncture model; The puncture operation unit is used to simulate a puncture biopsy operation; The assessment unit is used to verify the puncture assessment of the user and to assess the simulated puncture biopsy operation; The VR unit is used for playing VR teaching materials and collecting real-time image data of simulated puncture biopsy operations, and building a virtual operating room based on the real-time image data; The assessment unit is used interactively with the VR unit; The puncture operation unit comprises a wireless communication module (3), a central processing unit (4), a sensing unit (5) and a puncture device (12); The central processing unit (4) is in communication connection with the wireless communication module (3) and the sensing unit (5); the wireless communication module (3) is in communication connection with the teaching unit and the VR unit; and the sensing unit (5) is installed on the puncture device (12); The puncture device (12) is used in conjunction with a puncture model to perform a simulated puncture biopsy operation; The sensing unit (5) is used to collect the puncture operation parameters of the puncture device (12), and send the puncture operation parameters to the central processor (4), and the central processor (4) sends them to the wireless communication module (3); The wireless communication module (3) is used for wireless communication between the teaching unit and the central processing unit (4); the wireless communication module (3) sends the puncture operation parameters to the teaching unit; the teaching unit sends the puncture operation parameters to the assessment unit; and the assessment unit assesses the puncture operation parameters.

2. The interactive puncture biopsy teaching system according to claim 1, characterized in that: The teaching unit comprises a user login module (1), a cloud server (2), a VR teaching material library (10) and a teaching progress generation module (11); The cloud server (2) is in communication connection with the user login module (1), the VR teaching material library (10), and the teaching progress generation module (11); the cloud server (2) is in communication connection with the assessment unit and the wireless communication module (3); The user login module (1) is used for user identity authentication login; The VR teaching material library (10) is used to store VR teaching videos of various puncture models; The teaching progress generation module (11) is used for the user to select a VR teaching video; And record the user's learning progress data for each VR teaching video; The cloud server (2) is used to receive the operating parameters sent by the wireless communication module (3); The cloud server (2) is used to retrieve VR teaching videos from a VR teaching material library (10) and send VR teaching video data to the VR unit; The cloud server (2) is also used to retrieve the learning progress data of the teaching progress generating module (11) and send the learning progress data to the assessment unit.

3. The interactive puncture biopsy teaching system according to claim 2, characterized in that: The assessment unit comprises an assessment interaction module (7) and an assessment verification module (8); The assessment interaction module (7) and the assessment verification module (8) are both connected to the cloud server (2) in communication, and the assessment interaction module (7) is connected to the assessment verification module (8) and the VR unit in communication; The assessment interaction module (7) is used in interaction with the VR unit; The assessment and verification module (8) is used to verify the user's puncture model assessment request; The assessment verification module (8) is used to receive the learning progress data, and determine whether the puncture model corresponding to the VR teaching video meets the conditions for simulating puncture biopsy operation according to the learning progress data, and send an assessment instruction to the assessment interaction module (7) if it meets the conditions; The assessment interaction module (7) receives the operation parameters sent by the cloud server (2); The assessment interaction module (7) is used to send simulation instructions to the VR unit when the puncture model complies with the simulated puncture biopsy operation; The assessment interaction module (7) stores standard operation parameters corresponding to the puncture model operation; The assessment interactive module (7) compares the operation parameters with the corresponding standard operation parameters and determines whether the simulated puncture biopsy operation is qualified.

4. The interactive puncture biopsy teaching system according to claim 3, characterized in that: The VR unit comprises a camera (6) and a wireless VR helmet (9); The wireless VR helmet (9) is in communication connection with the camera (6), the cloud server (2), and the assessment interaction module (7); The wireless VR helmet (9) and the assessment interaction module (7) are used in cooperation with each other; The camera (6) is used to collect real-time video data of the simulated puncture biopsy operation and send the data to the wireless VR helmet (9); The wireless VR helmet (9) is used to receive simulation instructions, and when receiving the instructions, the wireless VR helmet (9) constructs a virtual operating room based on a puncture model in the video data based on a graphics algorithm.

5. The interactive puncture biopsy teaching system according to claim 4, characterized in that: The puncture operation parameters include the puncture angle value, force value and depth value of the puncture device (12); The sensing unit (5) comprises a piezoelectric sensor (51), a distance sensor (52) and a three-axis sensor (53); The piezoelectric sensor (51), the distance sensor (52), and the three-axis sensor (53) are all electrically connected to the central processing unit (4); The piezoelectric sensor (51), the distance sensor (52), and the three-axis sensor (53) are all fixedly mounted on the puncture device (12); The piezoelectric sensor (51) is used to detect the puncture force value of the puncture device (12); The distance sensor (52) is used to detect the puncture depth value of the puncture device (12); The three-axis sensor (53) is used to detect the puncture angle value of the puncture device (12).

6. The interactive puncture biopsy teaching system according to claim 5, characterized in that: Each of the puncture models is sprayed with a unique number, and the unique number matches the file name of the VR teaching video; The assessment and verification module (8) determines whether the puncture model meets the conditions for simulating a puncture biopsy operation by adopting the following steps A; Step A1, the assessment verification module (8) identifies whether the learning progress data corresponding to the puncture model selected by the user for assessment is greater than 90%; Step A2: If the answer is yes, the assessment verification module (8) verifies that the puncture model meets the assessment conditions, the assessment verification module (8) agrees to the user's assessment request, and sends an assessment instruction to the assessment interaction module (7) indicating that the puncture model is allowed to be assessed; Step A3: If the answer is no, the assessment verification module (8) determines that the puncture model does not meet the assessment conditions, and the assessment verification module (8) rejects the user's assessment request.

7. The interactive puncture biopsy teaching system according to claim 6, characterized in that: When the assessment interaction module (7) receives the assessment instruction, it adopts the following steps B: Step B1, 7 identifies the serial number of the puncture model in the virtual operating room, and identifies whether the puncture model is the same as the puncture model to be assessed based on the serial number; Step B2: If they are the same, the assessment interaction module (7) sends a message of allowing assessment to the wireless VR helmet (9); The user operates the puncture device (12) to perform a simulated puncture biopsy operation on the puncture model; When the operation is completed, the assessment interactive module (7) calculates the percentage difference between the puncture angle value, force value and depth value in the operation parameters and the standard angle value, standard force value and standard depth value of the standard operation parameters respectively; And based on whether the average of the three percentage difference rates is less than or equal to the set threshold S; If it is less than, the assessment interactive module (7) determines that the puncture model has passed the assessment, and sends a message of passing the assessment to the wireless VR helmet (9); If it is greater, the assessment interaction module (7) determines that the puncture model fails the assessment and sends a message of failure to the wireless VR helmet (9); Step B3: If they are not the same, the assessment interaction module (7) sends a model error message to the wireless VR helmet (9).

8. The interactive puncture biopsy teaching system according to claim 7, characterized in that: The wireless VR helmet (9) displays the received words "pass the assessment", "fail the assessment", "model error" and "allow the assessment".

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