GB2624520A

GB2624520A - Simulated teaching and practical training system for minimal invasive surgery of a throat

Info

Publication number: GB2624520A
Application number: GB2314831.5A
Authority: GB
Inventors: Lei Wenbin; Wen Yihui; Hu Wenjieng; Wu Xingmei; Dend Jie
Original assignee: First Affiliated Hospital Of Sun Yat Sen Univ; First Affiliated Hospital of Sun Yat Sen University
Current assignee: First Affiliated Hospital Of Sun Yat Sen Univ; First Affiliated Hospital of Sun Yat Sen University
Priority date: 2022-11-16
Filing date: 2023-09-27
Publication date: 2024-05-22
Also published as: WO2024103937A1; ZA202303016B; GB202314831D0; CN115762278A

Abstract

The present invention discloses a simulated teaching and practical training system for minimal invasive surgery of a throat. The system comprises a throat simulation apparatus, a laryngoscope, an adjustable surgical hand holder 30, a movable surgical microscope and a real-time dynamic display. The throat simulator includes a module 10 for holding a throat specimen and a movable module 20 for holding the laryngoscope. The movable surgical microscope is used for observing an image in the laryngoscope by an operator. The microscope is provided with a built-in camera which is electrically connected with the real-time dynamic display to display and record a real-time dynamic video captured by the laryngoscope.

Description

SIMULATED TEACHING AND PRACTICAL TRAINING SYSTEM FOR

MINIMAL INVASIVE SURGERY OF A THROAT

TECHNICAL FIELD

[0001] The present invention relates to the field of medical devices, and specifically relates to a simulated teaching and practical training system for minimal invasive surgery of a throat

BACKGROUND

[0002] In recent 20 years, the public's demand for medical safety has become higher and higher, but there is contradiction between the growth of surgeons and the safety of patients. Voice microsurgery is a combination of microsurgery and endoscopic surgery, which requires high surgical skills. The laryngeal organ is at a deep position, the anatomical structure is fine, and the vocal physiology complex. Moreover, the vocal cord tissue structure is fine and weak, the surgical space is narrow, and the surgical path is long and narrow. It is needed to maintain the normal voice function or rebuild the voice function as much as possible while removing the lesions, which has high requirements on the skills of voice surgeons.

[0003] The conventional surgical learning process is to improve the surgical skills of junior doctors by performing actual cases in an operating room under the guidance of the senior doctors and accumulating these cases. However, such a process has a long learning period and huge costs, and moreover, patients and the society also have to pay a heavy cost for the early immaturity of doctors. For medical safety, the senior doctors cannot back off completely. In addition to watching live teaching through television videos, it is difficult for beginners to operate in person, which greatly prolongs the skill maturity time of young doctors. Therefore, developing an effective and reasonable surgery simulated training system and educational training system is of great benefit in society or economy.

[0004] A patent CN110288892 A discloses a simulated training apparatus for microsurgery of a throat, which comprises a throat fixing module, a laryngoscope fixing module, a microscope, a laryngoscope and a hand holder. An ex-vivo laryngeal specimen is placed in the throat fixing module; the laryngoscope is placed into the laryngeal fixing module; and then the ex-vivo laryngeal specimen is observed through the laryngoscope and the microscope, and the practical operation is carried out, but it can only simulate the surgery skills, which is a simple simulated training. Students can only operate in a standard way with the guidance or accompaniment of a teacher while operating with the simulated training apparatus. In case of no teacher, it is difficult for the students to determine whether the steps are correct and how to correctly operate in subsequent steps, that is, there is a lack of quantitative objective indicators for tracking and measuring in operation skills and action evaluation. The measurement and evaluation cannot be standardized because it is not conducive to standardized teaching and training, and the application in training and popularization are also not convenient.

SUMMARY

[0005] To overcome the shortages of the prior art, the present invention provides a simulated teaching and practical training system for minimal invasive surgery of a throat, which solves conventional problems described above. The system realizes integrally specialized traceable measurement records, enables standardized, visualized and scientific evaluation, facilitates a teacher, an assistant or other students to watch the real-time dynamic video of dissection of an operator so as to observe the completion condition of the dissection steps of the operator, and observe whether the dissection steps are standard or not, etc. [0006] The present invention is implemented using the following technical solution: [0007] A simulated teaching and practical training system for minimal invasive surgery of a throat, comprising: [0008] a throat simulated operation apparatus, comprising a throat fixing module provided with a cavity for placing an ex-vivo throat specimen, and a laryngoscope fixing module arranged in front of the throat fixing module; [0009] a laryngoscope which is mounted on the laryngoscope fixing module and extends into the ex-vivo throat specimen by adjusting the position of the laryngoscope fixing module; [0010] an adjustable surgical hand holder for holding arms of an operator and capable of being adjusted according to an operation angle of the throat simulated operation apparatus; [0011] a movable surgical microscope for an operator to view an image within the laryngoscope, the mobile surgical microscope being provided with a built-in camera, and [0012] a real-time dynamic display which is electrically connected with the built-in camera to display and record a real-time dynamic video of dissection steps of the operator.

[0013] Preferably, wherein the throat fixing module comprises a first base, a first support bar connected with the first base, a first connecting seat connected with the first support bar, and a throat fixing seat; the first support bar is in rotary connection with the throat fixing seat by the first connecting seat; and the cavity is arranged in the throat fixing seat [0014] Preferably, wherein the throat fixing module further comprises at least two plastic rubber tubes stored in cavity, and the plastic rubber tubes are of an arc-shaped structure; through holes and adjusting bolts are arranged on two opposite sides of the throat fixing seat; and the adjusting bolts pass through the through holes to adjust the inner diameter of the cavity formed by the two plastic rubber tubes.

[0015] Preferably, wherein the laryngoscope fixing module comprises a second base, a height-adjustable second support bar connected with the second base, a second connecting seat connected with the second support bar, and a laryngoscope fixing seat connected with the second connecting seat, the second support bar is provided with a telescopic bar, and an adjusting part for adjusting the height of the telescopic bar, the second connecting seat is in rotary connection with the laryngoscope fixing seat; a spring clamp, a first laryngoscope positioning block and a second laryngoscope positioning block are arranged on the laryngoscope fixing seat, the spring clamp is matched with the first laryngoscope positioning block and the second laryngoscope positioning block to accurately position the laryngoscope.

[0016] Preferably, wherein the throat simulated operation apparatus further comprises a bottom plate and a sliding module; the throat fixing module is fixedly mounted on one end of the bottom plate, and the sliding module is mounted on the other end of the bottom plate; the laryngoscope fixing module is mounted on the sliding module, and the distance between the laryngoscope fixing module and the throat fixing module can be adjusted through the sliding module [0017] Preferably, wherein the sliding module comprises a third base with a guide track, and a sliding plate sliding on the third base; the laryngoscope fixing module is mounted on the sliding plate; a tail end limiting column and a head end limiting column are arranged on the third base; pulleys and a guide block are arranged at a bottom part of the sliding plate; the pulleys are arranged on two opposite sides of the sliding plate and slide on two sides of the third base, and the guide block moves on the guide track. [0018] Preferably, wherein the adjustable surgical hand holder comprises an adjustable fixing rack, a double-joint liftable support and a hand holder body; the adjustable fixing rack is provided with a first clamping part, a second clamping part and an adjusting screw; the first clamping part is provided with a clamping port; the second clamping part is positioned in the clamping port, and the size of the clamping port can be adjusted through the adjusting screw; the double-joint liftable support comprises a first joint, a second joint, a third joint and a fourth joint; one end of the first joint is in rotary connection with the first clamping part, and the other end of the first joint is provided with clamping teeth; the second joint is provided with engaging teeth which are engaged with the clamping teeth, the second joint is arranged in the third joint and can be lifted up and down in the third joint; the fourth joint and the third joint are in rotary connection; and the hand holder body is mounted at a tail end of the fourth joint and is provided with arc-shaped hand holding grooves [0019] Preferably, wherein the fourth joint is horizontally mounted.

[0020] Preferably, wherein the movable surgical microscope is provided with a movable arm, and a microscope lens mounted on the movable arm, and the microscope lens is capable of adjusting the space between the microscope lens and the laryngoscope through the movable arm [0021] Preferably, wherein the real-time dynamic display comprises at least one field operation display screen and a main collective monitoring display screen; and each of the field operation display screens is electrically connected with the main collective monitoring display screen [0022] Compared with the prior art, the present invention has the following beneficial effects [0023] The simulated teaching and practical training system for minimal invasive surgery of a throat of the present invention integrates a throat simulated operation apparatus, a laryngoscope, an adjustable surgical hand holder, a movable surgical microscope and a real-time dynamic display; the operation steps of the operator are displayed and recorded in real time through the real-time dynamic display utilizing a built-in camera of the movable surgical microscope, so that the teacher can conveniently point out the operation steps on site or the subsequent operator can conveniently watch their own operation and correct operation according to the guidance of the teacher; integrally specialized traceable measurement records are achieved; standardized, visualized and scientific evaluation can be realized; and the teacher, an assistant or other students can conveniently watch the real-time dynamic video of dissection of the operator so as to observe the completion condition of the dissection steps of the operator, and observe whether the dissection steps are standard or not, etc.

BRIEF DESCRIPTION OF DRAWINGS

[0024] FIG. 1 is a structural schematic diagram of a throat simulated operation apparatus according to the present invention; and [0025] FIG. 2 is a structural schematic diagram of an adjustable surgical hand holder according to the present invention.

[0026] In the figures: 10, throat fixing module; 11, first base; 12, first support bar; 13, first connecting seat; 14, throat fixing seat; 20, laryngoscope fixing module; 21, second base; 22, second support bar; 220, telescopic bar; 221, adjusting part; 23, second connecting seat; 24, laryngoscope fixing seat; 240, spring damp, 241, first laryngoscope fixing block; 242, second laryngoscope fixing block; 30, adjustable surgical hand holder; 31, adjustable fixing rack; 310, first clamping part; 311, second clamping part; 312, adjusting screw; 32, double-joint liftable support; 320, first joint; 321, second joint; 322, third joint; 323, fourth joint; 33, hand holder body; 40, bottom plate; 41, sliding module; 410, third base; 411, sliding plate; 412, tail end limiting column; and 413, head end limiting column

DETAILED DESCRIPTION OF THE EMBODIMENTS

[0027] In order to make the above purposes, features and advantages of the present invention more obvious and understandable, the specific implementation of the present invention will be described in detail in combination with the accompanying drawings. Many specific details are described in the following description to fully understand the present invention. However, the present invention can be implemented in many ways different from those described herein. Those skilled in the art can make similar improvements without violating the connotation of the present invention. Therefore, the present invention is not limited by the specific embodiments disclosed below. [0028] In the description of the present invention, it should be understood that when an element is considered as "connecting' with another element, it can be directly connected to another element or there may be intermediate elements at the same time. On the contrary, when a component is called "directly" connected with another component, there is no intermediate component.

[0029] Embodiment 1 [0030] A simulated teaching and practical training system for minimal invasive surgery of a throat comprises: [0031] a throat simulated operation apparatus, comprising a throat fixing module 10 provided with a cavity for placing an ex-vivo throat specimen, and a laryngoscope fixing module 20 arranged in front of the throat fixing module 10; [0032] a laryngoscope which is mounted on the laryngoscope fixing module 20 and extends into the ex-vivo throat specimen by adjusting the position of the laryngoscope fixing module 20, [0033] an adjustable surgical hand holder 30 for holding arms of an operator and capable of being adjusted according to an operation angle of the throat simulated operation apparatus; [0034] a movable surgical microscope for an operator to view an image within the laryngoscope, the mobile surgical microscope being provided with a built-in camera; and [0035] a real-time dynamic display which is electrically connected with the built-in camera to display and record a real-time dynamic video of dissection steps of the operator.

[0036] The principle of operation is that the ex-vivo throat specimen is placed in the cavity of the throat fixing module 10, the laryngoscope is then clamped on the laryngoscope fixing module 20, and the positional relationship between the laryngoscope fixing module 20 and the throat fixing module 10 is adjusted, the laryngoscope is extended into the ex-vivo throat specimen, and the operation angle of the surgical hand holder 30 is adjusted according to the arm position; the moveable surgical microscope is then moved in front of the laryngoscope and is aligned with the laryngoscope; meanwhile, whether the operation position of the ex-vivo throat specimen is correct can be observed through the movable surgical microscope or the real-time dynamic display, then surgical tools (operating instruments) are used for performing simulated operation of minimally invasive surgery; and the whole operation process in the laryngoscope is displayed and recorded through the real-time dynamic display.

[0037] The above-mentioned simulated teaching and practical training system for minimal invasive surgery of a throat integrates the throat simulated operation apparatus, the laryngoscope, the adjustable surgical hand holder 30, the movable surgical microscope and the real-time dynamic display; the operation steps of the operator are displayed and recorded in real time through the real-time dynamic display utilizing the built-in camera of the movable surgical microscope, so that a teacher can conveniently point out the operation steps on site or the subsequent operator can conveniently watch own operation and correct operation according to the guidance of the teacher, integrally specialized traceable measurement records are achieved; standardized, visualized and scientific evaluation can be realized; and the teacher, an assistant or other students can conveniently watch the real-time dynamic video of dissection of the operator so as to observe the completion condition of the dissection steps of the operator, and observe whether the dissection steps are standard or not, etc [0038] Embodiment 2 [0039] In this embodiment, in addition to the above-mentioned structure, in order to provide the throat fixing module 10 with an adjustable function in up and down angles, as shown in FIG. 1, the throat fixing module 10 comprises a first base 11, a first support bar 12 connected with the first base 1], a first connecting seat 13 connected with the first support bar 12, and a throat fixing seat 14; the first support bar 12 is in rotary connection with the throat fixing seat 14 by the first connecting seat 13; the cavity is arranged in the throat fixing seat 14; and an inclination angle of the throat fixing seat 14 is adjustable under the elastic effect of the first connecting seat, so that the throat fixing seat 14 is conveniently fixed, and then the position and the angle of the laryngoscope fixing module 20 can be adjusted. The first connecting seat 13 and the throat fixing seat 14 can be connected in an engaging rotating or bolt fixing mode, and it is not described in detail herein.

[0040] Optionally, the throat fixing module 10 further comprises at least two plastic rubber tubes stored in cavity, and the plastic rubber tubes are of an arc-shaped structure; through holes and adjusting bolts are arranged on two opposite sides of the throat fixing seat 14; the adjusting bolts pass through the through holes to adjust the inner diameter of the cavity formed by the two plastic rubber tubes so as to fix the ex-vivo throat specimen having different species and sizes [0041] In other embodiments, the first base 11 is an aluminum-iron alloy; a double faced adhesive tape can be adhered to a lower part of the first base; the first base can be flexibly fixed and freely placed, and can be vertically adjusted by 180 degrees, or horizontally adjusted by 360 degrees in a turning way, or fixed through a screw; the first base is convenient to dismount and mount, hard to move, is firm after being directly connected with the laryngoscope, and facilitates the surgical operation.

[0042] Embodiment 3 [0043] In this embodiment, in addition to one or more of the above-mentioned structures, in order to realize height adjusting, forward and backward inclination angle adjusting, and left and right 360-degree adjusting of the laryngoscope fixing module 20, as shown in FIG 1, the laryngoscope fixing module 20 comprises a second base 21, a height-adjustable second support bar 22 connected with the second base 21, a second connecting seat 23 connected with the second support bar, and a laryngoscope fixing seat 24 connected with the second connecting seat; the second support bar 22 is provided with a telescopic bar 220, and an adjusting part 221 for adjusting the height of the telescopic bar 220; the second connecting seat 23 is in rotary connection with the laryngoscope fixing seat 24, a spring clamp 240, a first laryngoscope positioning block 241 and a second laryngoscope positioning block 242 are arranged on the laryngoscope fixing seat 24; and the spring clamp 240 is matched with the first laryngoscope positioning block 241 and the second laryngoscope positioning block 242 to accurately position the laryngoscope. The spring clamp 240 can be used for directly mounting the laryngoscope having different models, shapes and sizes Two spring clamps 240, two first laryngoscope positioning blocks 24] and the second laryngoscope positioning blocks 242 are provided; the first laryngoscope positioning blocks are is arranged between the two spring clamps 240, a guide positioning groove for further guiding and positioning the laryngoscope is formed between the two first laryngoscope positioning blocks 241, the second laryngoscope positioning blocks 242 are hook shaped and positioned at front ends of the spring clamps 240 to visually align. The second connecting seat 23 and the laryngoscope fixing seat 24 can be connected in an engaging rotating or bolt fixing mode, and it is not described in detail herein. Optionally, a clearance slot is formed between the two laryngoscope fixing blocks 242 to prevent the view of the laryngoscope from being obstructed.

[0044] The throat simulated operation apparatus further comprises a bottom plate 40 and a sliding module 41; the throat fixing module 10 is fixedly mounted on one end of the bottom plate 40, and the sliding module 41 is mounted on the other end of the bottom plate 40; and the laryngoscope fixing module 20 is mounted on the sliding module 41, and the distance between the laryngoscope fixing module 20 and the throat fixing module 10 can be adjusted through the sliding module 4L The distance from the laryngoscope to the specimen and the microscope can be adjusted by random sliding The bottom plate 40 is rectangular and is 33x20 cm2, and a face plate is clean and easy to wash Due to this design, random carrying is realized, a certain supporting stability is ensured, displacement is greatly avoided during operation, and a tabletop is kept clean. Meanwhile, four anti-skid bumps are arranged on a bottom surface of the bottom plate 40 to avoid sliding of the bottom plate 40 on the tabletop [0045] Optionally, the sliding module 4] comprises a third base 410 with a guide track, and a sliding plate 411 sliding on the third base; the second base 21 of the laryngoscope fixing module 20 is mounted on the sliding plate 411; a tail end limiting column 412 and a head end limiting column 413 are arranged on the third base; the tail end limiting column 412 and the head end limiting column 413 are respectively used for limiting a forward end part or a backward end part of the sliding plate 411 to avoid excessive sliding and sliding out of the third base 410. Pulleys and a guide block are arranged at a bottom part of the sliding plate 411; the pulleys are arranged on two opposite sides of the sliding plate 411 and slide on two sides of the third base 410; and the guide block moves on the guide track to enable linear moving of the laryngoscope fixing module 20 during moving.

[0046] In other embodiments, the second base 21 and the sliding plate 411 are in rotary connection to finely adjust the positional relationship between the laryngoscope and the ex-vivo throat specimen, namely, arc adjustment.

[0047] Embodiment 4 [0048] In this embodiment, in addition to one or more of the above-mentioned structures, as shown in FIG. 2, the adjustable surgical hand holder 30 comprises an adjustable fixing rack 21, a double-joint liftable support 32 and a hand holder body 33; the adjustable fixing rack 31 is provided with a first clamping part 310, a second clamping part 311 and an adjusting screw 312; the first clamping part 310 is provided with a damping port; the second clamping part 311 is positioned in the clamping port, and the size of the clamping port can be adjusted through the adjusting screw 312; the double-joint liftable support 32 comprises a first joint 320, a second joint 321, a third joint 322 and a fourth joint 323; one end of the first joint 320 is in rotary connection with the first clamping part 310, and the other end of the first joint 320 is provided with clamping teeth; the second joint 321 is provided with engaging teeth which are engaged with the clamping teeth; the second joint 321 is arranged in the third joint 322 and can be lifted up and down in the third joint; the fourth joint 323 and the third joint 322 are in rotary connection; and the hand holder body 33 is mounted at a tail end of the fourth joint 323 and is provided with arc-shaped hand holding grooves. When in use, the size of the clamping port is adjusted, then the hand holder body is fixedly clamped on a table or the tabletop having any thickness; the height of the hand holder body 33 is adjusted through each joint of the double-joint liftable support 32, the height of two sides can be different, and the height can be flexibly adjusted according to the position of a surgeon; then arms or elbow joints of the surgeon are put on the arc-shaped hand holding grooves to prevent the surgeon from hand fatigue to influence the operation stability after longtime operation; and meanwhile, the operation positions of the arms can be kept, so that standardized operation is ensured.

[0049] Optionally, two adjustable surgical hand holders 30 are provided. The fourth joint 323 is horizontally mounted.

[0050] Embodiment 5 [0051] In this embodiment, in addition to one or more of the above-mentioned structures, the movable surgical microscope is provided with a movable arm, and a microscope lens mounted on the movable arm; the microscope lens is capable of adjusting the space between the microscope lens and the laryngoscope through the movable arm. In another embodiment, the movable surgical microscope is a tabletop type AM-2000 surgical microscope which achieves five-level zoom focal length meeting the needs of a microsurgery. The built-in camera and an HDMI high-definition data cable are capable of transmitting the surgery field to a display system, thus the teacher, the assistant or other students can conveniently watch the real-time dynamic video of dissection of the operator so as to observe the completion condition of the dissection steps of the operator, and observe whether the dissection steps are standard or not, etc. [0052] Embodiment 6 [0053] In this embodiment, in addition to one or more of the above-mentioned structures, the real-time dynamic display comprises at least one field operation display screen and a main collective monitoring display screen; each of the field operation display screen is electrically connected with the main collective monitoring display screen. The field operation display screen has a size of 19 inches and a resolution of >1280X1024, and the details are exceptionally clear. The main collective monitoring display screen is used for collecting information from each of the field operation di splay screen to a teacher guidance monitoring screen, so that the teacher can conveniently observe and guide each student in operation and surgery detail simulation, and one teacher can remotely give guidance in multiple routes, which meets the remote education system in epidemic situation.

[0054] In another embodiment, the simulated teaching and practical training system for minimal invasive surgery of a throat further comprises a wireless Bluetooth action sensor which is electrically connected with the real-time dynamic display; the real-time dynamic display is equipped with full-orientation (gyro and magnetic field) endoscopic skilled action evaluation software; the wireless Bluetooth action sensor is mounted on an operation instrument; the parameters such as operation bar jittering, stroke, posture and position of the student can be accurately evaluated through the endoscopic skilled action evaluation software, and a performance report and a learning curve can be automatically generated, so that the change in action of the student can be accurately analyzed in real time, and in case of mis-operation, the operator can be timely reminded and corrected.

[0055] In other embodiments, other operational action trajectory tracking assemblies can be mounted to monitor the action acceleration, velocity, tremor, total action stroke, rotation and visual performance parameters of the student.

[0056] Embodiment 7 [0057] In this embodiments, in addition to one or more of the above-mentioned structures, the simulated teaching and practical training system for minimal invasive surgery of a throat further comprises a movable storing cart which is provided with a plurality of storing spaces from top to bottom so that assemblies of the simulated teaching and practical training system for minimal invasive surgery of a throat can be stored, and an unitary structure is formed for sale; and moreover, the structure is multi-layer; the operation is easy and convenient; and the space is saved [0058] In the above embodiments, the technical solution of the present invention features the throat minimally invasive surgery, simple design, ingenious connection between the components, and no excessive obstruction to the operating space, and the operating student can perform simulated training of the surgery; and meanwhile, the system is externally connected with the display for zooming out the microscope view for intuitive learning of other students and evaluation by the teacher. One teacher can remotely give guidance in multiple routes through the teacher guiding monitoring display screen, which meets the remote education system in epidemic situation. The system is integrated, and lightweight, can be randomly carried and cleaned, can be flexibly adjusted from height and direction, and has low requirements on external factors such as an operation table and an operation chair. In addition, a surgery simulated action tracking workstation is designed for tracking the trajectory of surgical actions of the students in training and comparing with standard action for scoring, and therefore, fine, standardized and homogeneous training can be achieved.

[0059] The technical features of the above embodiments can be combined arbitrarily. In order to make the description simple, all possible combinations of the technical features in the above embodiments are not described. However, as long as the combination of these technical features is not contradictory, it should be considered as the scope of this specification.

Claims

What is claimed is: 1. A simulated teaching and practical training system for minimal invasive surgery of a throat, comprising: a throat simulated operation apparatus, comprising a throat fixing module provided with a cavity for placing an ex-vivo throat specimen, and a laryngoscope fixing module arranged in front of the throat fixing module; a laryngoscope which is mounted on the laryngoscope fixing module and extends into the ex-vivo throat specimen by adjusting the position of the laryngoscope fixing module; an adjustable surgical hand holder for holding arms of an operator and capable of being adjusted according to an operation angle of the throat simulated operation apparatus; a movable surgical microscope for an operator to view an image within the laryngoscope, the mobile surgical microscope being provided with a built-in camera; and a real-time dynamic display which is electrically connected with the built-in camera to display and record a real-time dynamic video of dissection steps of the operator.
2. The simulated teaching and practical training system for minimal invasive surgery of a throat according to claim 1, wherein the throat fixing module comprises a first base, a first support bar connected with the first base, a first connecting seat connected with the first support bar, and a throat fixing seat; the first support bar is in rotary connection with the throat fixing seat by the first connecting seat; and the cavity is arranged in the throat fixing seat.
3. The simulated teaching and practical training system for minimal invasive surgery of a throat according to claim 2, wherein the throat fixing module further comprises at least two plastic rubber tubes stored in cavity, and the plastic rubber tubes are of an arc-shaped structure; through holes and adjusting bolts are arranged on two opposite sides of the throat fixing seat; and the adjusting bolts pass through the through holes to adjust the inner diameter of the cavity formed by the two plastic rubber tubes.
4. The simulated teaching and practical training system for minimal invasive surgery of a throat according to claim 1, wherein the laryngoscope fixing module comprises a second base, a height-adjustable second support bar connected with the second base, a second connecting seat connected with the second support bar, and a laryngoscope fixing seat connected with the second connecting seat; the second support bar is provided with a telescopic bar, and an adjusting part for adjusting the height of the telescopic bar; the second connecting seat is in rotary connection with the laryngoscope fixing seat; a spring clamp, a first laryngoscope positioning block and a second laryngoscope positioning block are arranged on the laryngoscope fixing seat; the spring clamp is matched with the first laryngoscope positioning block and the second laryngoscope positioning block to accurately position the laryngoscope.
5. The simulated teaching and practical training system for minimal invasive surgery of a throat according to claim 4, wherein the throat simulated operation apparatus further comprises a bottom plate and a sliding module; the throat fixing module is fixedly mounted on one end of the bottom plate, and the sliding module is mounted on the other end of the bottom plate; the laryngoscope fixing module is mounted on the sliding module, and the distance between the laryngoscope fixing module and the throat fixing module can be adjusted through the sliding module.
6. The simulated teaching and practical training system for minimal invasive surgery of a throat according to claim 5, wherein the sliding module comprises a third base with a guide track, and a sliding plate sliding on the third base; the laryngoscope fixing module is mounted on the sliding plate; a tail end limiting column and a head end limiting column are arranged on the third base; pulleys and a guide block are arranged at a bottom part of the sliding plate, the pulleys are arranged on two opposite sides of the sliding plate and slide on two sides of the third base; and the guide block moves on the guide track.
7. The simulated teaching and practical training system for minimal invasive surgery of a throat according to claim 1, wherein the adjustable surgical hand holder comprises an adjustable fixing rack, a double-joint liftable support and a hand holder body, the adjustable fixing rack is provided with a first clamping part, a second clamping part and an adjusting screw; the first clamping part is provided with a clamping port; the second clamping part is positioned in the damping port, and the size of the clamping port can be adjusted through the adjusting screw; the double-joint liftable support comprises a first joint, a second joint, a third joint and a fourth joint; one end of the first joint is in rotary connection with the first clamping part, and the other end of the first joint is provided with clamping teeth; the second joint is provided with engaging teeth which are engaged with the clamping teeth; the second joint is arranged in the third joint and can be lifted up and down in the third joint; the fourth joint and the third joint are in rotary connection; and the hand holder body is mounted at a tail end of the fourth joint and is provided with arc-shaped hand holding grooves
8. The simulated teaching and practical training system for minimal invasive surgery of a throat according to claim 7, wherein the fourth joint is horizontally mounted.
9. The simulated teaching and practical training system for minimal invasive surgery of a throat according to claim 1, wherein the movable surgical microscope is provided with a movable arm, and a microscope lens mounted on the movable arm, and the microscope lens is capable of adjusting the space between the microscope lens and the laryngoscope through the movable arm
10. The simulated teaching and practical training system for minimal invasive surgery of a throat according to claim 1, wherein the real-time dynamic display comprises at least one field operation display screen and a main collective monitoring display screen; and each of the field operation display screens is electrically connected with the main collective monitoring display screen.