A multi-channel invasive ear-nose-throat endoscope

Abstract

The present application relates to ear-nose-throat endoscope field, especially to a multi-channel invasive ear-nose-throat endoscope. The multi-channel invasive ear-nose-throat endoscope can take pictures of ear, nose and throat. When the annular air bag outside the outer tube is inflated by pressurized gas, the annular air bag can provide anti-shaking support for the miniature lens module in the outer tube in the respiratory tract, improving the shooting effect of the miniature lens module. After the miniature lens module is pulled out from the adapter module, it can be inserted into the deep part of the patient's external auditory canal for shooting, improving the application scene and use effect of the ear-nose-throat endoscope. In addition, medical staff and patients can control the size of the annular air bag according to the actual situation, improving the use safety of the ear-nose-throat endoscope. The technical problem that the size of the ear-nose-throat endoscope suitable for the external auditory canal is much smaller than the inner diameter of the throat respiratory tract, resulting in excessive shaking of the ear-nose-throat endoscope during shooting, is solved.

Description

Technical Field

[0001] This invention relates to the field of otolaryngology endoscopy, and more particularly to a multi-channel invasive otolaryngology endoscope. Background Technology

[0002] A multi-channel invasive otolaryngology endoscope is a minimally invasive examination and surgical tool specifically designed for the ear, nose, and larynx. It enters the patient's body cavity through a slender, insertable endoscope, allowing it to enter the external auditory canal, nasal airway, and laryngeal airway for imaging. Because the inner diameter of the external auditory canal is much smaller than that of the laryngeal airway, the size of the otolaryngology endoscope used in the external auditory canal is much smaller than that of the laryngeal airway. During the process of moving and imaging the inside of the laryngeal airway using this endoscope, the small size of the endoscope prevents it from fitting snugly against the inner wall of the airway for sufficient support. This results in excessive wobbling as the endoscope moves within the airway, making stable imaging difficult and affecting the imaging results. Summary of the Invention

[0003] To overcome the drawback of ENT endoscopes, which are much smaller than the inner diameter of the laryngeal airway and thus cause unnecessary shaking during imaging, this invention provides a multi-channel invasive ENT endoscope.

[0004] The technical implementation of this invention is as follows: A multi-channel invasive otolaryngology endoscope includes an outer tube, an integrated wiring harness, an adapter module, a miniature lens module, a miniature electromagnet, a main airway, a shunt ring, micro-air tubes, an annular block, and an annular airbag; the integrated wiring harness and the adapter module are sequentially fixed inside the outer tube; the integrated wiring harness is electrically connected to the adapter module; the miniature lens module is electrically connected inside the adapter module; the miniature lens module is equipped with a miniature illumination lamp assembly; the main airway, the shunt ring, and several micro-air tubes are sequentially slidably connected inside the outer tube; the main airway is connected to the shunt... The outer tube has a ring; a micro-air tube connected to a diversion ring; an annular block is slidably connected to the outer side of the outer tube; an annular airbag is fixed to the annular block; the micro-air tube is connected to the annular airbag, and the annular airbag surrounds the area outside the outer tube where the transfer module is located; a micro-electromagnet is installed on the transfer module; the micro-electromagnet has a limiting groove structure corresponding to the number and position of the micro-air tubes; the micro-air tubes are inserted into the corresponding limiting grooves; the overall material of the outer tube, as well as the integrated wiring harness and the outer layer material of the transfer module, are all made of insulating material, and the outer surface of the micro-air tube is coated with an iron-based alloy coating.

[0005] Furthermore, it is particularly preferred that the adapter module is equipped with a miniature electric heater for heating the end of the external tube that has a miniature lens module.

[0006] Furthermore, it is particularly preferred that the outer side of the annular airbag has several ventilation slots.

[0007] Furthermore, it is particularly preferred that a tension spring is fixedly connected between the flow divider ring and the outer tube.

[0008] Furthermore, it is particularly preferred that the miniature lens module is slidably connected to the adapter module.

[0009] Furthermore, it is particularly preferred that a compression spring is fixedly connected between the miniature lens module and the adapter module; an external thread structure is provided on the outer tube; a ring cover is fitted between the outer tube and the miniature lens module; an internal thread structure adapted to the external thread is provided inside the ring cover; and a protective lens is fixedly connected to the center of the ring cover.

[0010] Furthermore, it is particularly preferred that the surface of the protective lens is coated with an anti-fog coating.

[0011] Furthermore, it is particularly preferred that a miniature airflow sensor for monitoring the patient's respiratory status is installed on the ring cover.

[0012] Furthermore, it is particularly preferred that the air inlet port of the main air pipe is connected to a solenoid three-way valve; and the third port of the solenoid three-way valve is connected to a vent pipe.

[0013] Furthermore, it is particularly preferred that the outlet port of the vent pipe is fixedly connected to a movable button; the movable button has an inner air hole structure, and the outlet port of the vent pipe is connected to the inner air hole; a sleeve is slidably connected to the outside of the movable button; the sleeve has an outer air hole structure corresponding to the inner air hole; and a spring is fixedly connected between the sleeve and the movable button.

[0014] Beneficial Effects: This invention provides a multi-channel invasive otolaryngology endoscope capable of imaging the ear, nose, and larynx. An annular airbag is connected to the outer side of the outer tube via an annular block. When the annular airbag expands under pressurized gas, it provides anti-shake support to the miniature lens module inside the outer tube within the respiratory tract, improving the imaging effect of the miniature lens module. After the miniature lens module is extended outward from the adapter module, it can be inserted deep into the patient's external auditory canal for imaging, improving the applicable scenarios and usage effects of this otolaryngology endoscope. Furthermore, both medical personnel and patients can control the size of the annular airbag according to the actual situation, improving the safety of using this otolaryngology endoscope. In summary, this invention's multi-channel invasive otolaryngology endoscope overcomes the technical problem that otolaryngology endoscopes suitable for the external auditory canal are much smaller than the inner diameter of the laryngeal respiratory tract, leading to excessive shaking during imaging. Attached Figure Description

[0015] Figure 1 This is a three-dimensional view of a multi-channel invasive otolaryngology endoscope according to the present invention;

[0016] Figure 2 This is a three-dimensional cross-sectional view of the outer tube of a multi-channel invasive otolaryngology endoscope according to the present invention.

[0017] Figure 3 This is a perspective view of a multi-channel invasive otolaryngology endoscope adapter module according to the present invention.

[0018] Figure 4 This is a three-dimensional view of the annular airbag of a multi-channel invasive otolaryngology endoscope according to the present invention.

[0019] Figure 5 This is a three-dimensional cross-sectional view of the adapter module of a multi-channel invasive otolaryngology endoscope according to the present invention.

[0020] Figure 6 This is a three-dimensional view of an electromagnetic three-way valve for a multi-channel invasive otolaryngology endoscope according to the present invention.

[0021] Figure 7 This is a three-dimensional view of the ring cover of a multi-channel invasive otolaryngology endoscope according to the present invention;

[0022] Figure 8 This is a three-dimensional cross-sectional view of the cannula of a multi-channel invasive otolaryngology endoscope according to the present invention.

[0023] Reference numerals: 1-Outer tube, 101-External thread, 21-Integrated wiring harness, 22-Adapter module, 23-Miniature lens module, 24-Miniature electromagnet, 2401-Limiting groove, 25-Miniature electric heater, 26-Compression spring, 31-Main air tube, 32-Diverter ring, 33-Micro air tube, 3301-Iron-based alloy coating, 34-Annular block, 35-Annular airbag, 3501-Ventilation groove, 36-Tension spring, 41-Ring cap, 4101-Internal thread, 42-Protective lens, 43-Miniature airflow sensor, 5-Solenoid three-way valve, 51-Ventilation tube, 52-Sleeve, 5201-External air hole, 53-Modular button, 5301-Internal air hole, 54-Spring. Detailed Implementation

[0024] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0025] Example 1: A multi-channel invasive otolaryngology endoscope, such as... Figures 1-6As shown, the device includes an outer tube 1, an integrated wiring harness 21, an adapter module 22, a miniature lens module 23, a miniature electromagnet 24, a main air tube 31, a shunt ring 32, micro-air tubes 33, an annular block 34, an annular airbag 35, and a tension spring 36. The integrated wiring harness 21 and the adapter module 22 are sequentially fixed inside the outer tube 1. One end of the integrated wiring harness 21 is electrically connected to the adapter module 22; the other end of the integrated wiring harness 21 is electrically connected to the central control display equipment. The miniature lens module 23 is electrically connected inside the adapter module 22 and is located at the end of the outer tube 1 for imaging. The miniature lens module 23 is equipped with a miniature lighting unit. The main air tube 31, the shunt ring 32, and several micro-air tubes 33 are sequentially slidably connected inside the outer tube 1. One end of the main air tube 31 is connected to the shunt ring 32; the other end of the main air tube 31 is externally connected to a micro-pump air pressure device; one end of all the micro-air tubes 33 is connected to the shunt ring. Ring 32; an annular block 34 is slidably connected to the outer side of the outer tube 1; an annular airbag 35 is fixedly connected to the annular block 34; the other ends of all micro-air tubes 33 are connected to the annular airbag 35, and the annular airbag 35 surrounds the area outside the outer tube 1 where the adapter module 22 is located; several ventilation slots 3501 are opened on the outer side of the annular airbag 35; a tension spring 36 is fixedly connected between the diversion ring 32 and the outer tube 1; a micro electromagnet 24 is installed on the adapter module 22; a limiting slot 2401 structure corresponding to the number and position of the micro-air tubes 33 is opened on the micro electromagnet 24; each micro-air tube 33 is inserted into the corresponding limiting slot 2401; the overall material of the outer tube 1, as well as the outer layer material of the integrated wire harness 21 and the adapter module 22, are all made of insulating material, and the part of the outer surface of each micro-air tube 33 initially aligned with the limiting slot 2401 is coated with an iron-based alloy coating 3301.

[0026] like Figure 5 As shown, a miniature electric heater 25 is installed on the adapter module 22. In cold temperature environments, the miniature electric heater 25 heats the end of the outer tube 1 with the miniature lens module 23 to a temperature close to the body temperature of the human body, which can prevent the cold outer tube 1 from causing a stimulating stress response inside the human body.

[0027] The steps for using a multi-channel invasive otolaryngology endoscope for external auditory canal imaging according to the present invention are as follows.

[0028] When medical staff need to take pictures of a patient's external auditory canal, they directly insert one end of the external tube 1, which is equipped with a miniature lens module 23, into the patient's external auditory canal. The miniature lens module 23 then takes pictures of the inside of the patient's external auditory canal. At the same time, the miniature lens module 23 transmits the captured images to an external central control display device for real-time imaging display through an adapter module 22 and an integrated wiring harness 21. This allows medical staff to directly view the images captured by the miniature lens module 23 through the external central control display device. In addition, the miniature lighting group on the miniature lens module 23 can provide sufficient illumination to enhance the clarity of the images captured by the miniature lens module 23.

[0029] The steps for using a multi-channel invasive otolaryngology endoscope for nasal respiratory tract imaging according to the present invention are as follows.

[0030] When medical staff need to take images of a patient's nasal airway, they slowly insert the end of the outer tube 1 equipped with a miniature lens module 23 into the patient's nasal airway. The miniature lens module 23 then takes images of the inside of the nasal airway. The medical staff can view the images captured by the miniature lens module 23 through an external central control display device. When the annular airbag 35 on the outer side of the outer tube 1 moves into the narrow area of ​​the patient's nasal airway and can no longer be inserted, the medical staff operates an external micro-pump air pressure device to inflate a small amount of pressurized gas into the annular airbag 35, causing the annular airbag 35 to expand into an open state. At this time, the annular block 34, along with the expanded annular airbag 35, is firmly locked in the narrow area of ​​the patient's nasal airway, and the expansion of the annular airbag 35... The expansion volume is small, so it will not put too much pressure on the patient's nasal airway and avoid damage to the nasal airway. Then, the medical staff continued to push the end of the outer tube 1 with the miniature lens module 23 slowly into the patient's nasal airway. The outer tube 1 continued to move into the patient's nasal airway along the annular block 34. At the same time, the annular airbag 35 pulled the micro-air tube 33, which moved the shunt ring 32 and the main airway 31. At the same time, the shunt ring 32 caused the tension spring 36 to stretch, so that the miniature lens module 23 could smoothly enter the patient's nasal airway for imaging. At this time, the patient's nasal airway was blocked by the outer tube 1 and the annular airbag 35. Although the annular airbag 35 has a ventilation groove 3501 that allows the airflow to pass smoothly, the patient preferred to use the mouth in conjunction with the laryngeal airway to breathe.

[0031] The steps for using a multi-channel invasive otolaryngology endoscope for laryngeal and respiratory tract imaging according to the present invention are as follows.

[0032] When medical staff need to perform imaging on a patient's laryngeal airway, they slowly insert the end of the outer tube 1 equipped with a miniature lens module 23 into the patient's laryngeal airway. The miniature lens module 23 then captures images of the inside of the patient's laryngeal airway. The medical staff can view the images captured by the miniature lens module 23 through an external central control display device. Because the inner diameter of the patient's laryngeal airway is much larger than the diameter of the outer tube 1, the end of the outer tube 1 equipped with the annular airbag 35, after entering the patient's laryngeal airway, is first controlled by the medical staff to... The micro-electromagnetic body 24 applies a weak electromagnetic force to the iron-based alloy coating 3301 on each micro-trachea 33. The iron-based alloy coating 3301 on the micro-trachea 33 is firmly magnetically attracted to the micro-electromagnetic body 24 by this weak electromagnetic force, so that the annular airbag 35 and the annular block 34 are fixed to the outer tube 1 along with the micro-trachea 33 and cannot move. The medical staff then operate the external micro-pump air pressure device to inflate the annular airbag 35 with pressurized gas, so that the annular airbag 35 is inflated to an expanded state. The expanded volume of the annular airbag 35 inside the larynx and respiratory tract is greater than The expansion of the annular air bladder 35 inside the nasal airway allows it to adhere extensively to the inner wall of the patient's laryngeal airway. The diameter of the annular air bladder 35 is slightly smaller than the inner diameter of the laryngeal airway, ensuring that it does not exert pressure on the patient's laryngeal airway and avoid damage. This also allows the annular air bladder 35 to move smoothly within the patient's laryngeal airway. Subsequently, medical personnel continue to slowly insert the end of the outer tube 1 equipped with the miniature lens module 23 into the patient's laryngeal airway. Internal imaging is performed by an inflatable annular airbag 35, which, with sufficient support from the inner wall of the laryngeal airway, provides anti-shake support for the micro-lens module 23, improving the imaging effect of the micro-lens module 23. Since the annular airbag 35 has an air passage 3501 that allows for smooth airflow, and the diameter of the inflatable annular airbag 35 is slightly smaller than the inner diameter of the laryngeal airway, the patient's laryngeal airway retains a channel for smooth airflow, allowing the patient to breathe smoothly using their mouth in conjunction with the laryngeal airway.

[0033] Example 2, this example is based on Example 1 above, such as... Figures 1-7As shown, the miniature lens module 23 is slidably connected to the adapter module 22. The adapter module 22 has a built-in track-type metal contact piece. The metal contact of the miniature lens module 23 remains in contact with the built-in track-type metal contact piece of the adapter module 22 during movement, so that the adapter module 22 can maintain an electrical connection with the miniature lens module 23. A compression spring 26 is fixedly connected between the miniature lens module 23 and the adapter module 22. The miniature lens module 23 is initially housed in the adapter module 22, and the compression spring 26 is in a compressed state. An external thread 101 structure is provided on the outer tube 1. A ring cover 41 is fitted between the outer tube 1 and the miniature lens module 23. The ring cover 41 has a structure that connects with the external thread. The inner thread 4101 structure is adapted to the outer thread 101 of the outer tube 1; the inner thread 4101 of the ring cover 41 is initially screwed into the outer thread 101 of the outer tube 1, and the miniature lens module 23 is kept tightly pressed inside the adapter module 22 by the ring cover 41; a protective lens 42 is fixedly attached to the middle of the ring cover 41; when medical staff need to insert the outer tube 1 into the patient's nasal or laryngeal airway, the ring cover 41 is kept in the state of keeping the miniature lens module 23 tightly pressed inside the adapter module 22, so that the end of the outer tube 1 connected to the miniature lens module 23 forms a closed whole with the ring cover 41 and the protective lens 42, and the ring cover 41, together with the protective lens 42, provides isolation protection for the miniature lens module 23 inside the airway.

[0034] The protective lens 42 of this embodiment is coated with an anti-fog coating to prevent tiny water droplets in the patient's respiratory tract from obscuring the field of view of the miniature lens module 23. When medical staff need to insert the miniature lens module 23 inside the outer tube 1 into the deep part of the patient's external auditory canal, since the diameter of the outer tube 1 is larger than the inner diameter of the deep part of the patient's external auditory canal, the entire outer tube 1 cannot be directly inserted into the deep part of the patient's external auditory canal. At this time, the medical staff need to remove the ring cover 41 from the outer tube 1, so that the compressed spring 26 pushes the miniature lens module 23 outward along the adapter module 22. Since the diameter of the miniature lens module 23 is smaller than the diameter of the outer tube 1 and the inner diameter of the deep part of the patient's external auditory canal, the medical staff can directly insert the miniature lens module 23 from the part that pops outward from the adapter module 22 into the deep part of the patient's external auditory canal for imaging, thus improving the applicable scenarios and usage effects of this ENT endoscope.

[0035] Example 3, this example is based on Example 2 above, such as... Figures 1-8As shown, a miniature airflow sensor 43 for monitoring the patient's respiratory status is installed on the ring cover 41; the air inlet port of the main air pipe 31 is connected to an electromagnetic three-way valve 5, and the air inlet port of the main air pipe 31 is connected to the air outlet port of the electromagnetic three-way valve 5; the air inlet port of the electromagnetic three-way valve 5 is connected to a micro-pump air pressure device; the third port of the electromagnetic three-way valve 5 is connected to a vent pipe 51; a movable button 53 is fixedly connected to the air outlet port of the vent pipe 51; an inner air hole 5301 structure is opened on the movable button 53, and the air outlet port of the vent pipe 51 is connected to the inner air hole 5301; a sleeve 52 is slidably connected between the outer side of the vent pipe 51 and the movable button 53; an outer air hole 5201 structure corresponding to the inner air hole 5301 is opened on the sleeve 52, and the outer air hole 5201 is initially not connected to the inner air hole 5301; a spring 54 is fixedly connected between the sleeve 52 and the movable button 53.

[0036] During the insertion of the external tube 1 and the annular air bag 35 into the patient's airway, the medical staff instructs the patient to hold the cannula 52 and the movable button 53. Initially, the outlet port of the electromagnetic three-way valve 5 is connected to the inlet port. The medical staff operates the external micro-pump air pressure device to output pressurized airflow to the main airway 31 through the electromagnetic three-way valve 5. The pressurized airflow inflates and expands the annular air bag 35. At the same time, the micro airflow sensor 43 continuously monitors the patient's respiratory status, allowing the medical staff to observe the airflow through the micro-pump airflow sensor. The respiratory status information fed back by the airflow sensor 43 determines whether the current inflated state of the annular airbag 35 will affect the patient's normal breathing. When medical staff observe that the inflated annular airbag 35 will affect the patient's normal breathing, the medical staff briefly shut off the external micro-pump air pressure device. At this time, the pressurized gas in the annular airbag 35 flows in reverse through the main air tube 31, the electromagnetic three-way valve 5 and the external micro-pump air pressure device to be discharged outward, allowing the annular airbag 35 to return to its original contracted state and ensuring the patient's normal breathing.

[0037] Next, the medical staff operated the external micro-pump air pressure device again to output pressurized airflow to the main airway 31 through the electromagnetic three-way valve 5. The pressurized airflow inflated the annular airbag 35, while controlling the expansion volume of the annular airbag 35 this time to be smaller than the previous expansion volume, so that the expanded annular airbag 35 would not affect the patient's normal breathing. Afterwards, the medical staff controlled the air outlet of the electromagnetic three-way valve 5 to switch to the state of being connected to the third port. Since the external air port 5201 was not initially connected to the internal air port 5301, the pressurized gas in the annular airbag 35 would not be discharged, keeping the annular airbag 35 in its current inflated state. The medical staff then turned off the external micro-pump air pressure device.

[0038] As medical staff continue to extend the outer tube 1 and the annular air bladder 35 deeper into the patient's airway, they instruct the patient that if they experience significant breathing difficulties, they can press the movable button 53 on the handheld cannula 52. Simultaneously, the movable button 53 compresses the spring 54, connecting the inner air port 5301 of the movable button 53 to the outer air port 5201 of the cannula 52. At this time, the pressurized gas inside the annular air bladder 35 quickly flows back through the main airway 31, the electromagnetic three-way valve 5, the inner air port 5301 of the movable button 53, and the outer air port 5201 of the cannula 52, allowing the annular air bladder 35 to return to its original contracted state, ensuring normal breathing for the patient.

[0039] If medical staff observe obvious breathing difficulties in the patient through the miniature airflow sensor 43 but do not press the active button 53, the medical staff can promptly control the air outlet of the electromagnetic three-way valve 5 to switch to the state connected to the air inlet. At this time, the pressurized gas in the annular airbag 35 flows in reverse through the main air tube 31, the electromagnetic three-way valve 5 and the external micro-pump air pressure device to be discharged outward, allowing the annular airbag 35 to return to its original contracted state, ensuring normal breathing of the patient's airway and improving the safety of using this ENT endoscope.

[0040] Although the present invention has been described in detail with reference to the above embodiments, it will be apparent to those skilled in the art that various changes or modifications can be made to the invention without departing from the principles and spirit of the invention as defined by the claims. Therefore, the detailed description of the embodiments in this disclosure is for illustrative purposes only and is not intended to limit the invention; rather, the scope of protection is defined by the content of the claims.

Claims

1. A multi-channel invasive otolaryngology endoscope, comprising an outer tube (1); An integrated wire harness (21) and a converter module (22) are sequentially fixed inside the outer tube (1); the integrated wire harness (21) is electrically connected to the converter module (22); a miniature lens module (23) is electrically connected inside the converter module (22); a miniature lighting lamp group is provided on the miniature lens module (23); Its characteristics are: It also includes the main trachea (31); The outer tube (1) is slidably connected to a main air tube (31), a diversion ring (32), and several micro-air tubes (33); the main air tube (31) is connected to the diversion ring (32); the micro-air tubes (33) are connected to the diversion ring (32); an annular block (34) is slidably connected to the outside of the outer tube (1); an annular airbag (35) is fixedly attached to the annular block (34); the micro-air tubes (33) are connected to the annular airbag (35), and the annular airbag (35) surrounds the outer tube (1) which is equipped with a transfer module (22). Outside the area; a miniature electromagnet (24) is installed on the adapter module (22); the miniature electromagnet (24) has a limiting groove (2401) structure that corresponds to the number and position of the micro-tubes (33); the micro-tubes (33) are inserted into the corresponding limiting grooves (2401); the overall material of the outer tube (1) and the outer layer material of the integrated wire harness (21) and the adapter module (22) are all made of insulating material, and the outer surface of the micro-tubes (33) is coated with an iron-based alloy coating (3301).

2. A multi-channel invasive ENT endoscope according to claim 1, characterized in that: a miniature electric heater (25) is installed on the adapter module (22) to heat one end of the outer tube (1) which is equipped with a miniature lens module (23).

3. A multi-channel invasive otolaryngology endoscope according to claim 1, characterized in that: The outer side of the annular airbag (35) has several ventilation slots (3501) structure.

4. A multi-channel invasive otolaryngology endoscope according to claim 1, characterized in that: A tension spring (36) is fixedly connected between the flow divider ring (32) and the outer tube (1).

5. A multi-channel invasive otolaryngology endoscope according to claim 1, characterized in that: Miniature lens module (23) slides to connect to adapter module (22).

6. A multi-channel invasive otolaryngology endoscope according to claim 5, characterized in that: A compression spring (26) is fixedly connected between the miniature lens module (23) and the adapter module (22); an external thread (101) structure is provided on the outer tube (1); a ring cover (41) is fitted between the outer tube (1) and the miniature lens module (23); an internal thread (4101) structure adapted to the external thread (101) is provided inside the ring cover (41); a protective lens (42) is fixedly connected to the middle of the ring cover (41).

7. A multi-channel invasive otolaryngology endoscope according to claim 6, characterized in that: The protective lens (42) is coated with an anti-fog coating.

8. A multi-channel invasive otolaryngology endoscope according to any one of claims 1-7, characterized in that: A miniature airflow sensor (43) for monitoring the patient’s respiratory status is installed on the ring cover (41).

9. A multi-channel invasive otolaryngology endoscope according to claim 8, characterized in that: The air inlet of the main air pipe (31) is connected to a solenoid three-way valve (5); the third port of the solenoid three-way valve (5) is connected to a vent pipe (51).

10. A multi-channel invasive otolaryngology endoscope according to claim 9, characterized in that: A movable button (53) is fixedly connected to the outlet port of the vent pipe (51); the movable button (53) has an inner air hole (5301) structure, and the outlet port of the vent pipe (51) is connected to the inner air hole (5301); a sleeve (52) is slidably connected to the outside of the movable button (53); an outer air hole (5201) structure corresponding to the inner air hole (5301) is opened on the sleeve (52); a spring (54) is fixedly connected between the sleeve (52) and the movable button (53).

Images