Endoscopic multifunctional examination device used after anorectal operation and examination method of endoscopic multifunctional examination device

Abstract

The invention relates to the field of anorectal departments, and provides an anorectal postoperative endoscopic multifunctional examination device and an examination method thereof.The anorectal postoperative endoscopic multifunctional examination device comprises an insertion pipeline, a lens part is installed at the end of the insertion pipeline, an assembling boss is installed in the middle of the front end of the lens part, and a camera is installed at the front end of a convex head part of the assembling boss; a plurality of light supplementing lamps are installed on the outer side of the front end of the assembling boss at equal intervals, a radian transparent cover is installed on the outer side of the front end of the lens part, an inner carrying cylinder is installed in the lens part, a pulling assembly is arranged in the middle of the inner carrying cylinder in a sliding mode, hot air assemblies are installed at the top end and the bottom end of the inner carrying cylinder correspondingly, and a focusing assembly is installed on the radian transparent cover. During use, the pulling assembly, the hot air assembly and the focusing assembly are utilized, the problem of water mist condensation caused by light reflection, ghosting hot spots and temperature difference of the endoscope camera due to the transparent protective cover is avoided, and the imaging quality and the shooting reliability are improved.

Description

Technical Field

[0001] The present invention relates to the field of anorectal surgery, and more specifically, to an endoscopic multifunctional inspection device and an inspection method for anorectal surgery. Background Art

[0002] In the field of anorectal medicine, with the continuous advancement of medical technology, endoscopic examination has become an important means for doctors to diagnose anal and rectal diseases. Especially after anorectal surgery, the application of endoscopic multifunctional inspection devices is indispensable. It can not only help doctors accurately evaluate the effect of the operation, but also promptly detect and deal with possible complications after the operation.

[0003] In actual applications, although the transparent protective cover equipped on the camera head of the endoscope is intended to protect the camera, it will cause multiple imaging interference problems. Specifically, part of the light from the fill light source is reflected back into the camera's field of view by the protective cover, resulting in ghosting and bright spots, which significantly reduce the image clarity and overall imaging quality. In addition, since the human body temperature is significantly higher than the external environment, when the endoscope enters the body, the temperature difference between the lens surface and the surrounding environment changes rapidly, causing the water vapor in the air to quickly condense into water droplets, and then forming a large area of ​​water mist covering the lens. This phenomenon seriously hinders the normal shooting work and further reduces the clarity and reliability of the imaging.

[0004] To this end, the present application proposes an endoscopic multifunctional inspection device and an inspection method for postoperative anorectal surgery to solve the above-mentioned problems. Summary of the invention

[0005] In view of the problems existing in the prior art, the purpose of the present invention is to provide an endoscopic multifunctional inspection device and an inspection method for anorectal surgery, which solves the problem that although the endoscope camera is protected by a transparent protective cover, it is easy to cause light reflection, ghost spots and water mist condensation caused by temperature difference, which significantly reduces the imaging quality and shooting reliability.

[0006] To solve the above problems, the present invention adopts the following technical solutions.

[0007] An endoscopic multifunctional inspection device for anorectal surgery comprises an insertion pipe, a lens portion is installed at the end of the insertion pipe, a mounting boss is installed at the middle of the front end of the lens portion, a camera is installed at the front end of the convex head of the mounting boss, a plurality of fill lights are installed at equal intervals at the outer side of the front end of the mounting boss, a curved transparent cover is installed at the outer side of the front end of the lens portion, an inner carrier is installed inside the lens portion, a pulling assembly is slidably provided at the middle of the inner carrier, hot air assemblies are installed at the top and bottom ends of the inner carrier, and a focusing assembly is installed on the curved transparent cover The hot air component includes a through-tube, in which a plurality of heating cross rings are equidistantly installed. Before the inspection begins, the heat flow discharged from the through-tube is used to fill the inner cavity of the lens head and the curved transparent cover to balance the temperature difference between the inner cavity and the human body, thereby preventing the camera and the curved transparent cover from fogging. The focusing component includes a plurality of micro lenses installed on the curved transparent cover, the micro lenses are equidistantly distributed and correspond one to one with the plurality of fill lights, the micro lenses are used to focus the fill lights to avoid light reflection, and an antibacterial film is attached to the outer side of the micro lenses.

[0008] Furthermore, the pulling assembly includes a stretching tube slidably connected to the middle part of the inner carrier tube, an inner sliding disk is installed at the front part of the stretching tube, the front end of the inner sliding disk is connected to the inner wall of the front end of the lens head through a spring, the top and bottom ends of the inner sliding disk are fixedly connected with protruding blocks, and an electromagnetic block is installed in the middle of the protruding block.

[0009] Furthermore, the protruding blocks all slide in the slide grooves, and the slide grooves are respectively opened at the front parts of the top and bottom ends of the inner carrier tube.

[0010] Furthermore, the hot air assembly also includes two temporary storage blocks fixedly installed at the rear part of the top and bottom ends of the inner carrier cylinder, the middle part of the two temporary storage blocks are provided with inner column grooves, the rear walls of the inner column grooves are installed with compressed air cylinders, the front part of the compressed air cylinders are installed with permanent magnets, the permanent magnets slide in the front middle part of the inner column grooves, the front part of the permanent magnets is connected to the front inner wall of the inner column grooves through springs, the air outlet of the compressed air cylinder penetrating the top wall of the temporary storage block is connected to one end of the through pipe, and the air outlet is a one-way air outlet valve.

[0011] Furthermore, the air inlet of the compressed air cylinder passes through the front of the inner carrier tube and is connected to the air ring cavity, and the air inlet is a one-way air inlet valve port, and the air ring cavity is fixedly installed at the rear of the inner carrier tube.

[0012] Furthermore, the other end of the through-tube sequentially passes through the front wall of the lens head, the interior of the mounting boss and is connected to the arc exhaust port, and the arc exhaust port is fixedly mounted on the upper and lower sides of the middle part of the front end of the mounting boss.

[0013] Furthermore, torsion spring rods are installed on the upper and lower sides of the middle part of the mounting boss portion, and a cleaning soft ring is rotatably connected to the torsion spring rods. A soft cotton wiping pad is installed on the inner wall of the cleaning soft ring, and the cleaning soft ring corresponds one-to-one to the curved air outlet.

[0014] Furthermore, a threaded ring is fixedly connected to the rear end of the curved transparent cover, an inner threaded ring is provided inside the front outer side of the lens head, and the threaded ring is threadedly connected to the inner threaded ring.

[0015] Furthermore, the insertion pipe is installed at one end of the endoscopic joystick, and a data plug is fixedly installed at the other end of the endoscopic joystick.

[0016] An inspection method of an anorectal surgery endoscopic multifunctional inspection device, using the anorectal surgery endoscopic multifunctional inspection device, comprises the following steps: S1. During the operation, the insertion tube is first gently inserted into the patient's body from the anus until it reaches the part to be tested. Then, the doctor pulls the stretch tube to drive the inner sliding disc and the protruding block connected to it to move backward. This process uses the magnetic repulsion effect between the electromagnetic block on the protruding block and the permanent magnet in the inner column slot to cause the permanent magnet to move inward in the inner column slot. The permanent magnet then squeezes the compressed gas cylinder and releases the squeezed gas. The released gas passes through the through-tube and the heating cross ring inside it to generate heat flow, and finally enters the inner cavity of the lens head and the curved transparent cover through the arc exhaust port connected to the through-tube, effectively balancing the temperature difference between the inner cavity and the human body, and preventing the camera and the inner wall of the curved transparent cover from fogging; S2. At the same time, the heat flow discharged from the arc exhaust port will also drive the front light-weight cleaning soft ring and the soft cotton pad installed with the torsion spring rod to move forward, and clean the camera exterior along the upper and lower arcs along the outer wall of the camera. Due to the external restriction of the arc transparent cover, the movement of the cleaning soft ring is more stable. At the same time, the heat flow forms a surrounding heat flow layer along the arc transparent cover and the outside of the camera, which can not only promote a certain cleaning effect, but also accelerate the balance of the temperature difference of the inner cavity. S3. Secondly, by using a fill light in combination with a camera for anorectal examination, during the irradiation process, the light of the fill light is focused by using the microlens on the curved transparent cover, and the irradiation direction of the fill light is outward. Combined with the focusing irradiation of the microlens, a better irradiation environment can be provided for the camera inside the anorectal cavity, which is more convenient for doctors to observe the healing status of the anorectal cavity after surgery.

[0017] Beneficial effects: Compared with the prior art, the advantages of the present invention are: Through the magnetic repulsion drive mechanism, the compressed gas cylinder is driven to release gas. After being heated, the gas enters the inner cavity of the lens head and the curved transparent cover through the curved exhaust port, effectively balancing the temperature difference between the inner cavity and the human body, and significantly reducing the fogging of the lens and the inner wall of the transparent cover caused by the temperature difference, thereby ensuring the clarity and reliability of the imaging of the endoscope during use, and providing doctors with a more accurate basis for diagnosis.

[0018] By releasing heated gas and using the heat flow to drive the cleaning soft ring and its soft cotton pad to clean the upper and lower half arcs along the outer wall of the camera, the dirt and residue on the surface of the camera are effectively removed, the cleanliness of the camera is maintained, and the continuous clarity of the field of view during postoperative examinations is ensured, which facilitates doctors to make more detailed observations and judgments.

[0019] Through the combination of fill light and microlens, the fill light can be effectively gathered and irradiated outward, providing a brighter and more uniform lighting environment for the camera inside the anorectal area. It not only improves the brightness of the field of view inside the anorectal area, but also reduces light scattering and shadow areas, allowing doctors to more clearly observe the healing status of the anorectal area after surgery, thereby making more accurate assessments and treatment decisions. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention; Figure 2 It is a schematic diagram of the three-dimensional structure from another viewing angle of the present invention; Figure 3 It is a schematic diagram of the external structure of the lens head of the present invention; Figure 4 It is a schematic diagram of the internal structure of the lens head of the present invention; Figure 5 It is a side view of the internal structure of the lens head of the present invention; Figure 6 It is a schematic diagram of the mounting boss structure of the present invention; Figure 7 It is a schematic diagram of the curvature transparent cover structure of the present invention; Figure 8 For the present invention Figure 7 A magnified image of point A; Fig. 9 It is a schematic diagram of the structure of the torsion spring rod of the present invention; Fig.10 It is a schematic diagram of the internal structure of the through pipe of the present invention.

[0021] The reference numerals in the figure are: 1. Insert pipe; 2. Lens part; 3. Mounting boss; 4. Camera; 5. Fill light; 6. Curved transparent cover; 7. Inner carrier tube; 8. Pulling assembly; 81. Stretch tube; 82. Inner sliding plate; 83. Spring one; 84. Protruding block; 85. Electromagnetic block; 86. Slide groove; 9. Hot air assembly; 91. Through pipe; 92. Heating cross ring; 93. Temporary storage block; 94. Inner column groove; 95. Compressed air cylinder; 96. Permanent magnet; 97. Spring two; 98. Curved exhaust port; 10. Focus assembly; 101. Micro lens; 102. Antibacterial film; 11. Air ring cavity; 12. Torsion spring rod; 13. Cleaning soft ring; 14. Soft cotton pad; 15. Threaded ring; 16. Inner screw ring; 17. Endoscope joystick; 18. Data plug. DETAILED DESCRIPTION

[0022] The technical solutions 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; it is obvious that the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making creative work are within the scope of protection of the present invention.

[0023] The embodiment of the present application provides an endoscopic multifunctional inspection device and an inspection method for anorectal surgery, thereby solving the problem of light reflection, ghosting spots and water mist condensation caused by temperature difference, which are easily caused by the endoscope camera being protected by a transparent protective cover, significantly reducing the imaging quality and shooting reliability. When in use, it effectively prevents the endoscope lens from fogging and improves imaging clarity. At the same time, it automatically cleans the camera, maintains the clarity of the field of view, optimizes the lighting effect, and enhances the brightness and uniformity of the lighting field of view.

[0024] The technical solution in the embodiment of the present application is to solve the above technical problems, and the overall idea is as follows: Example 1

[0025] See also Figure 1-Figure 10A multifunctional endoscopic inspection device for anorectal surgery comprises an insertion pipe 1, a lens portion 2 is installed at the end of the insertion pipe 1, a mounting boss 3 is installed at the middle of the front end of the lens portion 2, a camera 4 is installed at the front end of the convex head of the mounting boss 3, a plurality of fill lights 5 are installed at equal intervals on the outer side of the front end of the mounting boss 3, a curved transparent cover 6 is installed on the outer side of the front end of the lens portion 2, an inner carrier tube 7 is installed inside the lens portion 2, a pulling component 8 is slidably arranged in the middle of the inner carrier tube 7, hot air components 9 are installed at the top and bottom ends of the inner carrier tube 7, and a focusing component 10 is installed on the curved transparent cover 6; the hot air component 9 It includes a through tube 91, in which a plurality of heating cross rings 92 are equidistantly installed. Before the inspection begins, the heat flow discharged from the through tube 91 is used to fill the inner cavity of the lens part 2 and the curved transparent cover 6 to balance the temperature difference between the inner cavity and the human body, thereby preventing the camera 4 and the curved transparent cover 6 from fogging. The focusing assembly 10 includes a plurality of micro lenses 101 installed on the curved transparent cover 6. The micro lenses 101 are equidistantly distributed and correspond one to one with the plurality of fill lights 5. The micro lenses 101 are used to focus the fill lights 5 to avoid light reflection. An antibacterial film 102 is attached to the outer side of the micro lenses 101.

[0026] In this example, see Figure 1-Figure 10 As shown, first, the insertion tube 1 is gently inserted into the patient's body from the anus until it reaches the part to be tested. Then the doctor uses the pulling component 8 to control the exhaust of the hot air component 9 through the magnetic repulsion effect of the hot air component 9, and transfers heat through the hot air component 9 to the inner cavity of the lens part 2 and the curved transparent cover 6, which effectively balances the temperature difference between the inner cavity and the human body, and prevents the camera 4 and the inner wall of the curved transparent cover 6 from fogging. Secondly, the microlens 101 is used to focus the fill light 5, and the irradiation direction of the fill light 5 is outward. With the focusing irradiation of the microlens 101, a better irradiation environment can be provided for the camera 4 inside the anorectum, which is more convenient for doctors to observe the healing state of the anorectum after surgery. At the same time, it is covered with an antibacterial film 102 to ensure hygiene and safety during the inspection process. Example 2

[0027] See also Figure 7-Figure 9 The pulling assembly 8 includes a stretching tube 81 slidably connected to the middle part of the inner carrier tube 7, an inner sliding plate 82 is installed at the front of the stretching tube 81, the front end of the inner sliding plate 82 is connected to the inner wall of the front end of the lens head 2 through a spring 83, the top and bottom ends of the inner sliding plate 82 are fixedly connected with a protruding block 84, and an electromagnetic block 85 is installed in the middle of the protruding block 84.

[0028] In this example, see Figure 7-Figure 9As shown, the doctor uses the pulling assembly 8, and the specific operation is as follows: the doctor pulls the stretching tube 81 to drive the inner sliding plate 82 and the protruding block 84 connected thereto to move backward. This process utilizes the magnetic repulsion effect between the electromagnetic block 85 on the protruding block 84 and the permanent magnet 96 in the inner column groove 94, so as to cause the permanent magnet 96 to move inward in the inner column groove 94. The permanent magnet 96 then squeezes the compressed gas cylinder 95 and releases the squeezed gas, thereby providing squeezing force for the compressed gas cylinder 95 to discharge the airflow.

[0029] For further information, see Figure 7-Figure 9 The protruding blocks 84 all slide in the slide grooves 86, and the slide grooves 86 are respectively opened at the front of the top and bottom ends of the inner carrier tube 7. The protruding blocks 84 all slide in the slide grooves 86 to ensure the stable movement of the protruding blocks 84. The slide grooves 86 serve as guiding and limiting structures, providing a clear moving path for the protruding blocks 84 and preventing them from deflecting or shaking during the movement. Example 3

[0030] See also Figure 8-Figure 10 The hot air assembly 9 also includes two temporary storage blocks 93 fixedly installed at the rear of the top and bottom ends of the inner carrier tube 7. An inner column groove 94 is opened in the middle of the two temporary storage blocks 93. A compressed air cylinder 95 is installed on the rear wall of the inner column groove 94. A permanent magnet 96 is installed in the front of the compressed air cylinder 95. The permanent magnet 96 slides in the front middle of the inner column groove 94. The front of the permanent magnet 96 is connected to the front inner wall of the inner column groove 94 through a spring 97. The compressed air cylinder 95 passes through the air outlet of the top wall of the temporary storage block 93 and is connected to one end of the through pipe 91, and the air outlet is a one-way air outlet valve.

[0031] In this example, see Figure 8-Figure 10 As shown, by setting up a hot air component 9, the squeezed gas released by the squeezed compressed air cylinder 95 passes through the through pipe 91 and the heating cross ring 92 therein to generate a heat flow, and finally enters the inner cavity of the lens part 2 and the curved transparent cover 6 through the curved exhaust port 98 connected to the through pipe 91, effectively balancing the temperature difference between the inner cavity and the human body, and preventing the camera 4 and the inner wall of the curved transparent cover 6 from fogging.

[0032] For further information, see Figure 7-Figure 10 The compressed air cylinder 95 passes through the air inlet at the front of the inner carrier tube 7 and is connected with the air ring cavity 11, and the air inlet is a one-way air inlet valve port. The air ring cavity 11 is fixedly installed at the rear of the inner carrier tube 7. The air ring cavity 11 is used to provide the compressed air cylinder 95 with exhaust gas for entry, and the air ring cavity 11 can be replenished by rotating the lens head 2 when the lens head 2 has not entered the human body (the replenishment method is through the air holes on the outside of the air ring cavity 11 and the air holes on the outside of the lens head 2, which rotate with each other and overlap to intake air, which is not drawn in the figure).

[0033] For further information, see Figure 6The other end of the through-tube 91 passes through the front wall of the lens head 2, the interior of the mounting boss 3 in sequence and is connected to the arc exhaust port 98. The arc exhaust port 98 is fixedly installed on the upper and lower sides of the middle of the front end of the mounting boss 3. The through-tube 91 connects the interior of the lens head 2 with the arc exhaust port 98, forming an effective exhaust channel and providing driving force for the subsequent rotation of the cleaning soft ring 13.

[0034] For further information, see Figure 6-Figure 7 The middle and upper sides of the convex part of the mounting boss 3 are both installed with a torsion spring rod 12, and a cleaning soft ring 13 is rotatably connected to the torsion spring rod 12, and a soft cotton pad 14 is installed on the inner wall of the cleaning soft ring 13, and the cleaning soft ring 13 corresponds to the arc exhaust port 98 one by one. The heat flow discharged from the arc exhaust port 98 will also drive the cleaning soft ring 13 and the soft cotton pad 14 installed with the torsion spring rod 12, which are light in front, to move forward, and clean the outer part of the camera 4 in the upper and lower arcs along the outer wall of the camera 4. Due to the external restriction of the arc transparent cover 6, the movement of the cleaning soft ring 13 is more stable. At the same time, the heat flow forms a surrounding heat flow layer along the arc transparent cover 6 and the outside of the camera 4, which can not only promote a certain cleaning effect, but also accelerate the balance of the temperature difference of the inner cavity.

[0035] For further information, see Figure 7 A threaded ring 15 is fixedly connected to the rear end of the arc-shaped transparent cover 6, and an inner threaded ring 16 is provided inside the front outer side of the lens part 2. The threaded ring 15 is threadedly connected to the inner threaded ring 16. A large pre-tightening force can be generated by tightening the thread, so that the arc-shaped transparent cover 6 and the lens part 2 fit tightly and are not easy to loosen, thereby maintaining the accuracy and stability of the optical equipment.

[0036] For further information, see Figure 1-Figure 2 The insertion tube 1 is installed at one end of the endoscope joystick 17, and a data plug 18 is fixedly installed at the other end of the endoscope joystick 17. The insertion tube 1, as the detection extension part of the endoscope, can accurately guide the anorectal area that needs to be inspected and observed. The flexibility and controllability of the endoscope joystick 17 enable the operator to easily adjust the direction and angle of the insertion tube 1, thereby achieving accurate observation and detection of the target area. Example 4

[0037] See also Figure 1-Figure 10 The present application also provides an inspection method for anorectal surgery using an endoscopic multifunctional inspection device, comprising the following steps: S1. During the operation, the insertion tube 1 is first gently inserted into the patient's body from the anus until it reaches the part to be tested. Then, the doctor pulls the stretch tube 81 to drive the inner sliding plate 82 and the protruding block 84 connected thereto to move backward. This process utilizes the magnetic repulsion effect between the electromagnetic block 85 on the protruding block 84 and the permanent magnet 96 in the inner column groove 94 to cause the permanent magnet 96 to move inward in the inner column groove 94. The permanent magnet 96 then squeezes the compressed gas cylinder 95 and releases the squeezed gas. The released gas passes through the through tube 91 and the heating cross ring 92 therein to generate heat flow, and finally enters the inner cavity of the lens head 2 and the curved transparent cover 6 through the arc exhaust port 98 connected to the through tube 91, effectively balancing the temperature difference between the inner cavity and the human body, and preventing the camera 4 and the inner wall of the curved transparent cover 6 from fogging. S2. At the same time, the heat flow discharged from the arc exhaust port 98 will also drive the cleaning soft ring 13 and the soft cotton pad 14 installed with the torsion spring rod 12 to move forward, and clean the outside of the camera 4 in the upper and lower arcs along the outer wall of the camera 4. Due to the external restriction of the arc transparent cover 6, the movement of the cleaning soft ring 13 is more stable. At the same time, the heat flow forms a surrounding heat flow layer along the arc transparent cover 6 and the outside of the camera 4, which can not only promote a certain cleaning effect, but also accelerate the balance of the temperature difference in the inner cavity. S3. Secondly, the anorectal examination is performed by using the fill light 5 in combination with the camera 4. During the irradiation process, the light of the fill light 5 is focused by the microlens 101 on the curved transparent cover 6, and the irradiation direction of the fill light 5 is outward. Combined with the focusing irradiation of the microlens 101, a better irradiation environment can be provided for the camera 4 inside the anorectal cavity, which is more convenient for doctors to observe the healing status of the anorectal cavity after surgery.

[0038] 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. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A multifunctional endoscopic inspection device for anorectal surgery, comprising an insertion tube (1), characterized in that: The end of the insertion pipe (1) is installed with a lens part (2), a mounting boss (3) is installed in the middle of the front end of the lens part (2), a camera (4) is installed at the front end of the convex head of the mounting boss (3), a plurality of fill lights (5) are installed at equal intervals on the outer side of the front end of the mounting boss (3), a curved transparent cover (6) is installed on the outer side of the front end of the lens part (2), an inner carrier tube (7) is installed inside the lens part (2), a pulling component (8) is slidably provided in the middle of the inner carrier tube (7), hot air components (9) are installed at the top and bottom ends of the inner carrier tube (7), and a focusing component (10) is installed on the curved transparent cover (6); The hot air assembly (9) comprises a through-tube (91), wherein a plurality of heating cross rings (92) are equidistantly installed in the through-tube (91). Before the inspection begins, the heat flow discharged from the through-tube (91) is used to fill the inner cavity of the lens portion (2) and the curved transparent cover (6), thereby balancing the temperature difference between the inner cavity and the human body, and preventing the camera (4) and the curved transparent cover (6) from fogging; The focusing assembly (10) comprises a plurality of micro lenses (101) mounted on the curved transparent cover (6); the micro lenses (101) are arranged in an equidistant distribution and correspond one-to-one to the plurality of fill lights (5); the micro lenses (101) are used to focus the fill lights (5) to avoid light reflection; and an antibacterial film (102) is attached to the outer side of the micro lenses (101).

2. The multifunctional endoscopic inspection device for anorectal surgery according to claim 1, characterized in that: The pulling assembly (8) comprises a stretching tube (81) slidably connected to the middle part of the inner carrier tube (7), an inner sliding plate (82) is installed at the front part of the stretching tube (81), the front end of the inner sliding plate (82) is connected to the inner wall of the front end of the lens head (2) through a spring 1 (83), the top and bottom ends of the inner sliding plate (82) are fixedly connected to a protruding block (84), and an electromagnetic block (85) is installed in the middle part of the protruding block (84).

3. The multifunctional endoscopic inspection device for anorectal surgery according to claim 2, characterized in that: The protruding blocks (84) all slide in the slide grooves (86), and the slide grooves (86) are respectively opened at the front parts of the top and bottom ends of the inner carrier tube (7).

4. The multifunctional endoscopic inspection device for anorectal surgery according to claim 1, characterized in that: The hot air assembly (9) also includes two temporary storage blocks (93) fixedly mounted at the rear of the top and bottom ends of the inner carrier tube (7), the middle of the two temporary storage blocks (93) are each provided with an inner column groove (94), the rear wall of the inner column groove (94) is each provided with a compressed air cylinder (95), the front of the compressed air cylinder (95) is each provided with a permanent magnet (96), the permanent magnet (96) slides in the front middle of the inner column groove (94), the front of the permanent magnet (96) is connected to the front inner wall of the inner column groove (94) through a spring 2 (97), the air outlet of the compressed air cylinder (95) penetrating the top wall of the temporary storage block (93) is connected to one end of the through pipe (91), and the air outlet is a one-way air outlet valve.

5. The multifunctional endoscopic inspection device for anorectal surgery according to claim 4, characterized in that: The compressed air cylinder (95) passes through the air inlet at the front of the inner carrier cylinder (7) and is in communication with the air ring cavity (11), and the air inlet is a one-way air inlet valve port. The air ring cavity (11) is fixedly mounted at the rear of the inner carrier cylinder (7).

6. The multifunctional endoscopic inspection device for anorectal surgery according to claim 1, characterized in that: The other end of the through-tube (91) sequentially passes through the front wall of the lens head (2), the interior of the mounting boss (3), and is connected to the arc exhaust port (98), and the arc exhaust port (98) is fixedly mounted on the upper and lower sides of the middle of the front end of the mounting boss (3).

7. The multifunctional endoscopic inspection device for anorectal surgery according to claim 1, characterized in that: Torsion spring rods (12) are installed on the upper and lower sides of the middle of the convex part of the mounting boss (3), and a cleaning soft ring (13) is rotatably connected to the torsion spring rod (12). A soft cotton wiping pad (14) is installed on the inner wall of the cleaning soft ring (13), and the cleaning soft ring (13) corresponds to the arc exhaust port (98) one by one.

8. The multifunctional endoscopic inspection device for anorectal surgery according to claim 1, characterized in that: A threaded ring (15) is fixedly connected to the rear end of the curved transparent cover (6), an inner threaded ring (16) is provided inside the front outer side of the lens portion (2), and the threaded ring (15) is threadedly connected to the inner threaded ring (16).

9. The multifunctional endoscopic inspection device for anorectal surgery according to claim 1, characterized in that: The insertion tube (1) is mounted on one end of an endoscope joystick (17), and a data plug (18) is fixedly mounted on the other end of the endoscope joystick (17).

10. An inspection method for anorectal surgery using an endoscopic multifunctional inspection device, using the anorectal surgery using an endoscopic multifunctional inspection device according to any one of claims 1 to 9, characterized in that: The following steps are involved: S1. During the operation, the insertion tube (1) is first gently inserted into the patient's body from the anus until it reaches the part to be tested. Then, the doctor pulls the stretch tube (81) to drive the inner sliding plate (82) and the protruding block (84) connected thereto to move backward. This process utilizes the magnetic repulsion effect between the electromagnetic block (85) on the protruding block (84) and the permanent magnet (96) in the inner column groove (94) to cause the permanent magnet (96) to move inward in the inner column groove (94). The permanent magnet (96) then squeezes the compressed gas cylinder (95) and releases the squeezed gas. The released gas passes through the through-tube (91) and the heating cross ring (92) therein to generate heat flow, and finally enters the inner cavity of the lens part (2) and the curved transparent cover (6) through the arc exhaust port (98) connected to the through-tube (91), effectively balancing the temperature difference between the inner cavity and the human body, and preventing the camera (4) and the inner wall of the curved transparent cover (6) from fogging. S2. At the same time, the heat flow discharged from the arc exhaust port (98) will also drive the front light-weight cleaning soft ring (13) and the soft cotton wiping pad (14) installed with the torsion spring rod (12) to move forward, and clean the outside of the camera (4) in the upper and lower arcs along the outer wall of the camera (4). Due to the external restriction of the arc transparent cover (6), the movement of the cleaning soft ring (13) is more stable. At the same time, the heat flow forms a surrounding heat flow layer along the arc transparent cover (6) and the outside of the camera (4), which can not only promote a certain cleaning effect, but also accelerate the balance of the temperature difference in the inner cavity. S3. Secondly, the anorectal examination is performed by using the fill light (5) in combination with the camera (4). During the irradiation process, the light of the fill light (5) is focused by using the microlens (101) on the curved transparent cover (6), and the irradiation direction of the fill light (5) is outward. Combined with the focused irradiation of the microlens (101), a better irradiation environment can be provided for the camera (4) inside the anorectal cavity, making it easier for doctors to observe the healing state of the anorectal cavity after surgery.

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