Bronchoscope and bronchoscope fixing structure

Abstract

The invention relates to the technical field of bronchoscopes, in particular to a bronchoscope and a bronchoscope fixing structure, and the bronchoscope comprises a bronchoscope body, and further comprises a vertical frame, a power transmission assembly and a fixing assembly, the six-direction transmission mechanism comprises an electric drive screw rod assembly, a first key rod and a pressing disc, the electric drive screw rod assembly is arranged on the surface of the vertical frame, the first key rod is fixedly connected to the top of the tube mirror body, and the pressing disc is arranged on the surface of the fixing base and connected with a shifting rod in the tube mirror body through a transmission box on the surface of the tube mirror body; the pressing disc and the first key rod are connected with the output end of the power transmission assembly. Provided is a composite control handle. Therefore, the bronchoscope is reasonable in structure and simple and convenient to operate, successfully solves the problems of hand ache and insufficient flexibility in the operation of the traditional bronchoscope through a series of innovative designs and technical optimization, and has important clinical significance, wide application prospect and good use effect.

Description

Technical Field

[0001] The present invention relates to the technical field of bronchoscopes, and particularly relates to a bronchoscope and a bronchoscope fixing structure. Background Art

[0002] A bronchoscope is a slender medical device. By inserting it through the mouth or nose into the lower respiratory tract of a patient, that is, through the glottis into the trachea, bronchi and more distal parts, the pathological conditions of the trachea and bronchi can be directly observed, and corresponding examinations and treatments can be carried out according to the observation results. Bronchoscope technology plays an important role in the diagnosis and treatment of respiratory diseases, especially in the early diagnosis of lung cancer, the treatment of airway stenosis, and the determination of pathogens causing pulmonary infections, etc., and plays an irreplaceable role.

[0003] Traditional bronchoscope examination operations require the doctor to lift and hold the handle part of the bronchoscope with the left hand high, and hold the insertion end with the right hand low. The bronchoscope is inserted into the patient's body by adjusting the angle and depth. This operation method not only requires the doctor to have a high level of professional skills, but also requires long-term physical support. Since the doctor needs to always hold the handle part high during the operation, it is extremely easy to cause fatigue and soreness in the left arm, thereby affecting the stability and accuracy of the operation.

[0004] To solve the problems existing in the traditional bronchoscope examination technology, technical personnel have developed a new type of bronchoscope system. This system mainly includes a liftable mounting frame and a bronchoscope clamping device. By clamping the bronchoscope on the mounting frame, it can replace the doctor's hand to hold the handle part, thereby reducing the doctor's operation burden.

[0005] Although the new type of bronchoscope system alleviates the fatigue problem of the doctor's left arm to a certain extent by clamping the bronchoscope with the mounting frame, there are still some limitations and challenges in actual operation:

[0006] First, the handle part cannot rotate after clamping: This limits the doctor's flexible adjustment of the insertion part of the bronchoscope, making the operation difficult at certain examination angles or positions;

[0007] Second, the lever on the handle part needs to be used to control the direction change: The doctor's hand still needs to be kept lifted and operate the lever, which cannot completely solve the problem of hand soreness. Summary of the Invention

[0008] The present invention aims to solve at least one of the technical problems in the related art to a certain extent.

[0009] To this end, the object of the present invention is to provide a bronchoscope and a bronchoscope fixing structure. The structure of the present invention is reasonable and easy to operate. Through a series of innovative designs and technical optimizations, the problems of hand soreness and insufficient flexibility in the operation of traditional bronchoscopes have been successfully solved, which has important clinical significance and broad application prospects, and has good use effects.

[0010] To achieve the above object, the present invention provides a bronchoscope, which includes a tube mirror body, and further includes:

[0011] A standing frame: internally provided with a power transmission component;

[0012] A six-way transmission mechanism: includes an electric drive screw rod component, a first key rod and a pressure plate. The electric drive screw rod component is arranged on the surface of the standing frame. The top of the tube mirror body is rotatably connected to the bottom of the fixed seat in the electric drive screw rod component, and the bottom of the tube mirror body is fixedly connected to the inner wall of the sliding seat in the electric drive screw rod component. The first key rod is fixedly connected to the top of the tube mirror body and is located inside the fixed seat. The pressure plate is arranged on the surface of the fixed seat and is connected to the lever in the tube mirror body through a transmission box on the surface of the tube mirror body. The pressure plate and the first key rod are respectively connected to the output end of the power transmission component;

[0013] A composite control handle: penetrates through the surface of the standing frame and is connected to the control switch inside the standing frame for controlling the start and stop of the electric drive screw rod component. The outer end surface thereof is provided with forward and reverse control keys connected to the electric drive screw rod component, and the inner end surface thereof is provided with a double-link adjustment gear disk and is connected to the input end of the power transmission component.

[0014] In addition, a bronchoscope provided according to the above application may further have the following additional technical features:

[0015] Specifically, the transmission box includes a box body, a transmission gear, a transmission rack and a return spring. The box body is fixedly connected to the surface of the tube mirror body. The transmission gear is rotatably connected to the inner wall of the box body. One end of the central shaft of the transmission gear penetrates out of the outside of the box body and is connected to the central shaft of the lever. The transmission rack is vertically slidably connected to the inner wall of the box body and meshes with the transmission gear. One end of the transmission rack penetrates out of the top of the box body, and a return spring is fixedly connected between the transmission rack and the top of the box body. The end of the transmission rack penetrating out of the top of the box body is slidably connected to the bottom of the pressure plate.

[0016] Specifically, the pressure plate includes a first key barrel and a disc body. The first key barrel is rotatably connected to the surface of the fixed seat. One end of the first key barrel is connected to the output end of the power transmission assembly. A threaded lead screw is fixedly connected to the bottom of the first key barrel. The disc body is threadedly connected to the outer surface of the threaded lead screw and sleeved outside the fixed seat. An annular groove is formed at the bottom of the disc body. One end of the transmission rack that penetrates through the top of the box body is located in the annular groove and is slidably connected to the inner wall of the annular groove.

[0017] Specifically, the power transmission assembly includes two lower side wheels, two upper side wheels, two synchronizing rods, a rod frame, a first shaft seat, and a second key barrel. The two lower side wheels are respectively rotatably connected to the inner walls of the lower ends of the vertical frames and are connected to the double-link adjusting gear disc. The two upper side wheels are respectively rotatably connected to the inner walls of the upper ends of the vertical frames. The two synchronizing rods are respectively rotatably connected to the inner walls of the vertical frames and are located between the two lower side wheels and the two upper side wheels. Synchronizing gears are respectively arranged at the positions corresponding to the lower end surfaces of the two lower side wheels and the upper end surfaces of the two synchronizing rods and at the positions corresponding to the upper end surfaces of the two upper side wheels and the upper end surfaces of the two synchronizing rods, and are connected by synchronizing belts. The rod frame, the first shaft seat, and the second key barrel are sequentially arranged at the top of the vertical frame. A vertical shaft rod is rotatably connected to the inner wall of the rod frame. A second key rod is rotatably connected to the position corresponding to the first shaft seat on the surface of the rod frame. One end of the second key rod penetrates into the interior of the rod frame, and upper driving gears are respectively arranged at the positions corresponding to one end surface of the vertical shaft rod, and they mesh with each other. The other end of the vertical shaft rod penetrates into the interior of the vertical frame and is fixedly connected to a left driving gear. The left driving gear is meshed with one of the upper side wheels. One end of the second key barrel penetrates into the interior of the vertical frame and is fixedly connected to a right driving gear. The right driving gear is meshed with the other upper side wheel;

[0018] The first key rod is located inside the second key barrel and is slidably connected to the inner wall of the second key barrel;

[0019] The first key barrel is respectively slidably connected to the inner walls of the first shaft seat and the upper side wheel that meshes with the right driving gear. One end of the first key barrel penetrates through the top of the first shaft seat and is sleeved outside the second key rod. The first key barrel is slidably connected to the surface of the second key rod.

[0020] Specifically, a limiting shaft seat is arranged at the position corresponding to the composite control handle on the surface of the vertical frame. The composite control handle is slidably connected to the inner wall of the limiting shaft seat. One end of the composite control handle penetrates into the interior of the vertical frame, and a compression spring is fixedly connected between the composite control handle and the inner wall of the vertical frame. The double-link adjusting gear disc is arranged on the surface of the end of the composite control handle that penetrates into the interior of the vertical frame and is located on one side of the bottom of the compression spring;

[0021] The dual-adjustment gear disk includes a first gear column and a second gear column. The first gear column is fixedly connected to the surface of one end of the composite control handle that penetrates into the inside of the vertical frame and meshes with one group of the lower-side wheels. The second gear column is vertically slidably connected to the inner wall of the vertical frame and rotatably connected to the bottom of the first gear column. The second gear column meshes with the other group of lower-side wheels. The bottom of the second gear column is rotatably connected to the top of the elastic contact piece in the control switch. A rotating gear disk is rotatably connected to the outer end surface of the composite control handle, and one end of the central axis of the rotating gear disk is connected to the second gear column.

[0022] Specifically, the control switch is a leaf switch;

[0023] The control switch further includes a human body induction switch. The human body induction switch is arranged on the outer end surface of the composite control handle and is located on one side of the forward and reverse control keys. The human body induction switch is connected to the electric drive lead screw assembly and is used to control the start and stop of the electric drive lead screw assembly.

[0024] Specifically, the composite control handle further includes a support mechanism arranged on the inner wall of the vertical frame. The support mechanism includes a frame. A vertical groove is formed on the surface of the vertical frame and is located outside the composite control handle. One end of the frame is rotatably connected to the inner wall of the vertical groove and is fixed by a fixed handle arranged on the surface of the vertical frame. A notch is formed on the surface of the frame corresponding to the position of the composite control handle.

[0025] Specifically, a supporting part is arranged on the surface of the frame away from the human body. One end of the supporting part away from the notch is higher than the end of the supporting part close to the notch. A sponge pad is arranged on the surface of the supporting part.

[0026] A bronchoscope fixing structure is used to fix the above-mentioned bronchoscope, and includes a fixing component arranged on the vertical frame. The fixing component includes a bidirectional lead screw, a worm gear, two sets of fixing plate frames, a conical lifting plate frame, a worm, a rotating cylinder and a pressing rod. The bidirectional lead screw is rotatably connected to the inner wall of the fixing part in the vertical frame. The worm gear is fixedly connected to the center of the surface of the bidirectional lead screw. An opening groove is formed on the surface of the fixing part facing the bed body and is communicated with the inside of the fixing part. The two sets of fixing plate frames are respectively slidably connected to the inner wall of the opening groove. One end of each of the two sets of fixing plate frames penetrates into the inside of the fixing part and is threadedly connected to the outer surface of the bidirectional lead screw. The conical lifting plate frames are respectively slidably connected to the surfaces of the two sets of fixing plate frames, and a first spring is fixedly connected between the conical lifting plate frames and the surfaces of the fixing plate frames. The worm is rotatably connected to the inner wall of the fixing part and meshes with the worm gear. The rotating cylinder is rotatably connected to the inner wall of the fixing part and is fixedly connected to one end of the worm. The pressing rod is horizontally slidably connected to the inner wall of the opening groove and is located between the two conical lifting plate frames. One end of the pressing rod penetrates into the inside of the rotating cylinder and is fixedly connected with a convex shaft. A spiral guide groove is formed at a position corresponding to the convex shaft on the surface of the rotating cylinder. One end of the convex shaft is located inside the spiral guide groove and is slidably connected to the inner wall of the spiral guide groove.

[0027] Specifically, the pressing rod further includes a threaded adjusting rod. The threaded adjusting rod is threadedly connected to the inner wall of the pressing rod. One end of the threaded adjusting rod penetrates out of the outside of the pressing rod and contacts the surface of the bed body. The other end of the threaded adjusting rod penetrates out of the outside of the fixing part and is provided with an adjusting handle.

[0028] Additional aspects and advantages of the present invention will be given in part in the following description, become apparent in part from the following description, or be understood through the practice of the present invention.

[0029] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0030] 1. The structure of the present invention is reasonable and the operation is simple. Through a series of innovative designs and technical optimizations, the problems of hand soreness and insufficient flexibility in traditional bronchoscope operations are successfully solved, which has important clinical significance and broad application prospects, and the use effect is good.

[0031] 2. The present invention creatively introduces the design of the vertical stand and the six-direction drive mechanism. This innovative solution enables the bronchoscope to achieve precise and flexible manipulation in multiple directions within a three-dimensional space while maintaining its original structure unchanged. This design not only significantly reduces the production cost but also, through a highly precise mechanical structure design, endows doctors with unprecedented operational convenience. Doctors can easily manipulate the bronchoscope through this mechanism to perform various complex actions such as axial lifting, circumferential rotation, and radial bending, greatly enhancing the flexibility and freedom of operation. This innovation provides strong technical support for the diagnosis and treatment of complex cases and opens up new possibilities;

[0032] 3. To further enhance the operation experience, the present invention specially designs a composite control handle and a power transmission component. The composite control handle is ingeniously arranged on the lower surface of the vertical stand. This user-friendly design enables doctors not to need to lift their left arms for a long time during the operation, thus effectively avoiding the problem of arm soreness. At the same time, through precise cooperation with the power transmission component, the composite control handle can accurately drive the six-direction drive mechanism to operate, achieving precise control of the motion state of the bronchoscope body. This design not only improves the accuracy of operation but also makes the entire operation process smoother and more efficient;

[0033] 4. To relieve the hand fatigue problem of doctors during long-term operations, the present invention also provides a support mechanism. This mechanism can effectively support the left arm and disperse the force on the wrist, thus avoiding the fatigue caused by long-term exertion. By reducing hand fatigue, the present invention not only extends the operation time of doctors but also improves the inspection efficiency and diagnostic accuracy. At the same time, the design of the support mechanism is simple and clear, and the operation is simple and convenient, providing a more comfortable operation experience for doctors;

[0034] 5. To facilitate doctors to quickly, stably, and labor-savingly install the vertical stand on the bed body, the present invention specially designs a fixing component. This component adopts a simple structure design, making the installation process easy and simple. Doctors only need to perform simple operations according to the instructions to achieve the quick installation and stable fixation of the vertical stand. The introduction of the fixing component not only improves the installation efficiency but also ensures the safety and stability of the entire operation process. This design not only reflects the innovation and practicality of the present invention but also provides great convenience for doctors' work. Brief Description of the Drawings

[0035] The above-mentioned and / or additional aspects and advantages of the present invention will become obvious and easy to understand from the following description of the embodiments in conjunction with the drawings, where:

[0036] Figure 1 is a schematic structural diagram of a bronchoscope and a bronchoscope fixing structure of the present invention;

[0037] Figure 2 Schematic diagram of the power transmission component structure in a bronchoscope and a bronchoscope fixing structure of the present invention;

[0038] Figure 3 Schematic diagram of the pressing disc structure in a bronchoscope and a bronchoscope fixing structure of the present invention;

[0039] Figure 4 Schematic diagram of the transmission box structure in a bronchoscope and a bronchoscope fixing structure of the present invention;

[0040] Figure 5 Schematic diagram of the support mechanism structure in a bronchoscope and a bronchoscope fixing structure of the present invention;

[0041] Figure 6 Schematic diagram of the supporting part structure in a bronchoscope and a bronchoscope fixing structure of the present invention;

[0042] Figure 7 Schematic diagram of the fixing component structure in a bronchoscope and a bronchoscope fixing structure of the present invention.

[0043] As shown in the figure:

[0044] 1. Endoscope body; 11. Transmission box; 12. Lever; 2. Vertical stand; 21. Power transmission component; 3. Six-way transmission mechanism; 31. Electric drive lead screw component; 32. First key rod; 33. Pressing disc; 300. Control switch; 301. Fixed seat; 302. Sliding seat; 4. Composite control handle; 41. Forward and reverse control keys; 42. Double-link adjusting gear disc;

[0045] 111. Box body; 112. Transmission gear; 113. Transmission rack; 114. Return spring;

[0046] 331. First key barrel; 332. Disc body;

[0047] 211. Lower side wheel; 212. Upper side wheel; 213. Synchronous rod; 214. Synchronous gear; 215. Synchronous toothed belt; 216. Rod frame; 217. First shaft seat; 218. Second key barrel; 219. Vertical shaft rod; 2110. Second key rod; 2111. Upper drive gear; 2112. Left drive gear; 2113. Right drive gear;

[0048] 40. Limit shaft seat; 43. Compression spring; 421. First tooth column; 422. Second tooth column; 4221. Rotating gear disc;

[0049] 400. Human body induction switch; 5. Support mechanism; 201. Vertical groove; 51. Frame; 52. Fixed handle; 53. Notch part; 54. Supporting part;

[0050] 6. Fixed component; 61. Bidirectional lead screw; 62. Worm gear; 63. Fixed plate frame; 64. Conical lifting plate frame; 65. Worm; 66. Rotary drum; 67. Extrusion rod; 200. Fixed part; 202. Open slot; 68. Thread adjusting rod; 69. Adjusting handle;

[0051] 100. Power connection plug; 311. Driving motor; 312. Lifting threaded lead screw; 313. Guide rod; 314. Lifting sliding seat; 315. Side U-shaped mounting frame. Detailed implementation mode

[0052] The embodiments of the present invention will be described in detail below. The examples of the embodiments are shown in the accompanying drawings, where the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the accompanying drawings are exemplary and are intended to explain the present invention, and should not be construed as limiting the present invention. On the contrary, the embodiments of the present invention include all changes, modifications and equivalents falling within the spirit and scope of the appended claims.

[0053] A bronchoscope and a bronchoscope fixing structure according to an embodiment of the present invention will be described below with reference to the accompanying drawings.

[0054] As Figures 1-6 shown, a bronchoscope according to an embodiment of the present invention includes a tube mirror body 1, and further includes:

[0055] Stand 2: internally provided with a power transmission assembly 21;

[0056] Six-way transmission mechanism 3: includes an electric drive lead screw assembly 31, a first key rod 32 and a pressure plate 33. The electric drive lead screw assembly 31 is arranged on the surface of the stand 2. The top of the tube mirror body 1 is rotatably connected to the bottom of the fixed seat 301 in the electric drive lead screw assembly 31, and the bottom of the tube mirror body 1 is fixedly connected to the inner wall of the sliding seat 302 in the electric drive lead screw assembly 31. The first key rod 32 is fixedly connected to the top of the tube mirror body 1 and is located inside the fixed seat 301. The pressure plate 33 is arranged on the surface of the fixed seat 301 and is connected to the lever 12 in the tube mirror body 1 through the transmission box 11 on the surface of the tube mirror body 1. The pressure plate 33 and the first key rod 32 are respectively connected to the output end of the power transmission assembly 21;

[0057] Composite control handle 4: penetrates through the surface of the stand 2 and is connected to the control switch 300 inside the stand 2 for controlling the start and stop of the electric drive lead screw assembly 31. The outer end surface thereof is provided with forward and reverse control keys 41 connected to the electric drive lead screw assembly 31, and the inner end surface thereof is provided with a double-link adjustment gear disc 42 and is connected to the input end of the power transmission assembly 21.

[0058] It should be noted that an electric connection plug 100 is also provided on the surface of the vertical frame 2 described in this embodiment, and the electric drive screw rod assembly 31 is powered by connecting the electric connection plug 100 to an external socket.

[0059] It should also be noted that the electric drive screw rod assembly 31 described in this embodiment includes a drive motor 311, a lifting threaded screw rod 312, a guide rod 313, a lifting slide seat 314, and a side U-shaped mounting frame 315. Among them, the drive motor 311 and the lifting threaded screw rod 312 are respectively arranged inside the vertical frame 2 and are connected. The guide rod 313 is arranged on the surface of the vertical frame 2. The lifting slide seat 314 is sleeved outside the guide rod 313. One end of the lifting slide seat 314 is fixedly connected to the side U-shaped mounting frame 315, and the other end penetrates into the inside of the vertical frame 2 and is threadedly connected to the outer surface of the lifting threaded screw rod 312. The fixed seat 301 is clamped and fixed on the inner wall of the upper end of the side U-shaped mounting frame 315. The sliding seat 302 is slidably connected to the inner wall of the lower end of the side U-shaped mounting frame 315. Through holes are provided on the surface of the side U-shaped mounting frame 315 for the pressing disc 33 and the first key rod 32 to pass through and be used.

[0060] It can be understood that the control switch 300 is used to control the start and stop of the drive motor 311, and the forward and reverse control keys 41 are used to control the forward and reverse rotation of the drive motor 311.

[0061] Specifically, the structure of the present invention is reasonable and the operation is simple. Through a series of innovative designs and technical optimizations, the problems of hand soreness and lack of flexibility in traditional bronchoscope operations have been successfully solved, which has important clinical significance and broad application prospects, and the use effect is good. The present invention creatively introduces the design of the vertical frame 2 and the six-direction transmission mechanism 3. This innovative solution enables the bronchoscope to achieve precise and flexible control in multiple directions in three-dimensional space on the basis of maintaining its original structure unchanged. This design not only significantly reduces the production cost, but also through highly precise mechanical structure design, gives doctors unprecedented operation convenience. Doctors can easily control the bronchoscope to perform various complex actions such as axial lifting, circumferential rotation, and radial bending through this mechanism, greatly improving the flexibility and freedom of operation. This innovation provides strong technical support for the diagnosis and treatment of complex cases and opens up new possibilities. In order to further improve the operation experience, the present invention specially designs the composite control handle 4 and the power transmission component 21. The composite control handle 4 is cleverly arranged on the lower surface of the vertical frame 2. This user-friendly design enables doctors not to lift their left arms for a long time during the operation, thus effectively avoiding the problem of arm soreness. At the same time, through precise cooperation with the power transmission component 21, the composite control handle 4 can accurately drive the six-direction transmission mechanism 3 to operate and achieve precise control of the motion state of the endoscope body 1. This design not only improves the accuracy of operation, but also makes the whole operation process more smooth and efficient.

[0062] In one embodiment of the present invention, as Figures 3-4 shown, the transmission box 11 includes a box body 111, a transmission gear 112, a transmission rack 113, and a return spring 114. The box body 111 is fixedly connected to the surface of the tube endoscope body 1. The transmission gear 112 is rotatably connected to the inner wall of the box body 111. One end of the central axis of the transmission gear 112 penetrates outside the box body 111 and is connected to the central axis of the lever 12. The transmission rack 113 is vertically slidably connected to the inner wall of the box body 111 and meshes with the transmission gear 112. One end of the transmission rack 113 penetrates the top of the box body 111, and a return spring 114 is fixedly connected between the end penetrating the top of the box body 111 and the top of the box body 111. The end of the transmission rack 113 penetrating the top of the box body 111 is slidably connected to the bottom of the pressure plate 33.

[0063] It should be noted that in this embodiment, the end of the transmission rack 113 meshing with the transmission gear 112 is strip-shaped, the end slidably connected to the bottom of the pressure plate 33 is cylindrical, and the connection part is arc-shaped.

[0064] Specifically, further illustrate the structure and connection relationship of the transmission box 11. As one of the core components of the present invention, the transmission box 11 is ingeniously designed to cooperate with the pressure plate 33 to achieve fine adjustment of the angle of the existing lever 12. This design enables the insertion end of the bronchoscope to perform precise radial bending operations, significantly improving the use effect and efficiency.

[0065] In actual operation, when the tube endoscope body 1 rotates, this action will synchronously drive the transmission box 11 to rotate. The rotation of the transmission box 11 further causes the top of the transmission rack 113 to slide smoothly along the bottom of the pressure plate 33. This sliding design not only ensures the coherence of the action but also greatly enhances the stability of the system.

[0066] When the pressure plate 33 is forced to descend, it will synchronously squeeze the transmission rack 113, causing it to descend accordingly. During this process, the return spring 114 is effectively compressed, storing energy for subsequent reset actions. At the same time, the descent of the transmission rack 113 will drive the connected transmission gear 112 to rotate. The rotation of the transmission gear 112 is the direct driving force for the rotation of the lever 12. As the transmission gear 112 continues to rotate, the lever 12 will also rotate accordingly, thereby driving the insertion end of the bronchoscope to perform radial bending operations. The coordinated action of this series of actions enables doctors to easily achieve precise control of the insertion end of the bronchoscope, providing strong technical support for the diagnosis and treatment of complex cases.

[0067] In one embodiment of the present invention, as Figure 3As shown, the pressure plate 33 includes a first key barrel 331 and a disc body 332. The first key barrel 331 is rotatably connected to the surface of the fixed seat 301. One end of the first key barrel 331 is connected to the output end of the power transmission assembly 21. A threaded lead screw is fixedly connected to the bottom of the first key barrel 331. The disc body 332 is threadedly connected to the outer surface of the threaded lead screw and sleeved outside the fixed seat 301. An annular groove is formed at the bottom of the disc body 332. One end of the transmission rack 113 passing through the top of the box body 111 is located in the annular groove and is slidably connected to the inner wall of the annular groove.

[0068] Specifically, further explain the structure and connection relationship of the pressure plate 33. The pressure plate 33 is carefully designed as a key component capable of driving the operation of the transmission box 11, and then driving the shift lever 12 through the transmission box 11 to achieve the radial bending operation of the insertion end of the bronchoscope. This design not only improves the operation accuracy but also significantly enhances the convenience and effectiveness of use.

[0069] In practical applications, when the side U-shaped mounting frame 315 descends, it will synchronously drive the fixed seat 301, the sliding seat 302, and the tube mirror body 1 to descend as a whole, achieving the axial lifting adjustment. This coherent action also ensures the stability and coordination of the entire system.

[0070] At the same time, the descent of the fixed seat 301 will also synchronously drive the first key barrel 331 to smoothly descend along the second key rod 2110 in the power transmission assembly 21. This design enables the first key barrel 331 and the second key rod 2110 to maintain a tight fit, ensuring the effective transmission of power. When the second key rod 2110 is driven to rotate, it will synchronously drive the first key barrel 331 to rotate. The rotation of the first key barrel 331 will then drive the threaded lead screw connected to its bottom to rotate. Through the precise thread fit between the threaded lead screw and the disc body 332, the rotation of the threaded lead screw can be converted into the vertical movement of the disc body 332. As the threaded lead screw rotates, the disc body 332 will smoothly descend along the surface of the fixed seat 301. The descent of the disc body 332 will synchronously squeeze the transmission rack 113, causing it to also descend. This action is the key step to drive the shift lever 12 to rotate and thus achieve the radial bending operation of the insertion end of the bronchoscope.

[0071] In an embodiment of the present invention, as Figures 2-3As shown in the figure, the power transmission assembly 21 includes two groups of lower wheels 211, two groups of upper wheels 212, two groups of synchronizing rods 213, a rod holder 216, a first shaft seat 217, and a second key cylinder 218. The two groups of lower wheels 211 are respectively rotatably connected to the inner wall of the lower end of the vertical frame 2 and are connected to the double-link adjusting gear disc 42. The two groups of upper wheels 212 are respectively rotatably connected to the inner wall of the upper end of the vertical frame 2. The two groups of synchronizing rods 213 are respectively rotatably connected to the inner wall of the vertical frame 2 and are located between the two groups of lower wheels 211 and the two groups of upper wheels 212. Synchronizing gears 214 are respectively provided at the positions corresponding to the surfaces of the two groups of lower wheels 211 and the lower ends of the two groups of synchronizing rods 213 and at the positions corresponding to the surfaces of the two groups of upper wheels 212 and the upper ends of the two groups of synchronizing rods 213, and are connected by synchronizing belts 215. The rod holder 216, the first shaft seat 217, and the second key cylinder 218 are sequentially arranged at the top of the vertical frame 2. A vertical shaft rod 219 is rotatably connected to the inner wall of the rod holder 216. A second key rod 2110 is rotatably connected to the surface of the rod holder 216 at a position corresponding to the first shaft seat 217. One end of the second key rod 2110 penetrates into the interior of the rod holder 216, and upper driving gears 2111 are respectively provided at the positions corresponding to the surface of one end of the vertical shaft rod 219, and they are meshed with each other. The other end of the vertical shaft rod 219 penetrates into the interior of the vertical frame 2 and is fixedly connected with a left driving gear 2112. The left driving gear 2112 is meshed with one of the groups of upper wheels 212. One end of the second key cylinder 218 penetrates into the interior of the vertical frame 2 and is fixedly connected with a right driving gear 2113. The right driving gear 2113 is meshed with the other group of upper wheels 212;

[0072] The first key rod 32 is located inside the second key cylinder 218 and is slidably connected to the inner wall of the second key cylinder 218;

[0073] The first key cylinder 331 is respectively slidably connected to the inner walls of the first shaft seat 217 and the upper wheel 212 that meshes with the right driving gear 2113. One end of the first key cylinder 331 penetrates out of the top of the first shaft seat 217 and is sleeved outside the second key rod 2110. The first key cylinder 331 is slidably connected to the surface of the second key rod 2110.

[0074] Specifically, further explain the structure and connection relationship of the power transmission assembly 21. The power transmission assembly 21 is carefully designed to independently and efficiently drive the first key cylinder 331 and the first key rod 32 to rotate. This design not only ensures the accuracy of transmission but also realizes the diversity of operations, greatly improving the use effect.

[0075] In practical applications, the two independent gear discs in the double-link adjusting gear disc 42 can respectively drive the lower wheels 211 to rotate. This rotation action is further transmitted to the upper wheels 212 through the precise cooperation of the synchronizing rods 213, the synchronizing gears 214, and the synchronizing belts 215.

[0076] Specifically, when the outer upper wheel 212 rotates, it drives the right drive gear 2113 to rotate synchronously, and then drives the second key barrel 218 to rotate. This series of rotational movements ultimately causes the first key rod 32 to rotate, achieving the circumferential rotation adjustment of the tube endoscope body 1.

[0077] Meanwhile, when the inner upper wheel 212 rotates, it synchronously drives the left drive gear 2112 to rotate. Through the ingenious cooperation of the vertical shaft rod 219 and the upper drive gear 2111, the rotation of the left drive gear 2112 is further transmitted to the second key rod 2110. The rotation of the second key rod 2110 then drives the first key barrel 331 to rotate. This action not only causes the disk body 332 to descend but also triggers the operation of the transmission box 11.

[0078] In an embodiment of the present invention, as Figure 2 shown, a limit shaft seat 40 is provided at a position corresponding to the surface of the vertical frame 2 and the position of the composite control handle 4. The composite control handle 4 is slidably connected to the inner wall of the limit shaft seat 40. One end of the composite control handle 4 penetrates into the interior of the vertical frame 2, and a compression spring 43 is fixedly connected between the inner wall of the vertical frame 2. The double-link adjustment gear disk 42 is arranged on the surface of the end of the composite control handle 4 that penetrates into the interior of the vertical frame 2 and is located on one side of the bottom of the compression spring 43;

[0079] The double-link adjustment gear disk 42 includes a first tooth column 421 and a second tooth column 422. The first tooth column 421 is fixedly connected to the surface of the end of the composite control handle 4 that penetrates into the interior of the vertical frame 2 and meshes with one group of lower wheels 211. The second tooth column 422 is vertically slidably connected to the inner wall of the vertical frame 2 and is rotatably connected to the bottom of the first tooth column 421. The second tooth column 422 meshes with the other group of lower wheels 211. The bottom of the second tooth column 422 is rotatably connected to the top of the elastic contact piece in the control switch 300. A rotating gear disk 4221 is rotatably connected to the outer end surface of the composite control handle 4, and one end of the central axis of the rotating gear disk 4221 is connected to the second tooth column 422.

[0080] It should be noted that the surface of the composite control handle 4 described in this embodiment is made of a non-slip material and is provided with reasonable holding grooves to increase the holding stability and operation accuracy.

[0081] Specifically, the structure and connection relationship of the composite control handle 4 and the dual-link adjustment gear disk 42 will be further described. The design of the composite control handle 4 fully considers the convenience and accuracy of user operation. In order to ensure the stability and accuracy of the handle during movement, a limit shaft seat 40 is specially provided. This design not only provides a clear guide for the composite control handle 4 but also ensures its position limitation during operation, effectively preventing misoperation. In addition, the addition of the compression spring 43 is icing on the cake. It enables the composite control handle 4 to automatically reset when not under external force, greatly improving the operation fluency and user experience. The user only needs to quickly drive the composite control handle 4 to easily achieve the connection or separation of the elastic sheet and the end in the control switch 300, thus quickly achieving the purpose of starting and stopping. This design undoubtedly improves the use efficiency and operation convenience of the device.

[0082] The dual-link adjustment gear disk 42, as an important part of the composite control handle 4, also has a carefully designed structure. The gear disk is composed of a first tooth column 421 and a second tooth column 422. They each have their own focuses in function but cooperate with each other. The first tooth column 421 rotates as the dual-link adjustment gear disk 42 rotates as a whole. It drives the first key rod 32 to rotate through precise cooperation with the power transmission component 21, thereby realizing the circumferential rotation adjustment of the tube mirror body 1. This design enables the user to easily adjust the insertion angle of the tube mirror to meet different inspection requirements. The second tooth column 422 is more special. It will only rotate under the drive of the rotating gear disk 4221. This design ensures the independence of the operation and avoids unnecessary interference. The second tooth column 422 drives the lever 12 to rotate through cooperation with the power transmission component 21, thereby realizing the radial bending operation of the insertion end of the bronchoscope. This function is crucial for precise inspection in a complex environment. It enables the user to adjust the bending degree of the bronchoscope according to needs to ensure the smooth progress of the inspection. The structure and connection relationship of the composite control handle 4 and the dual-link adjustment gear disk 42 are ingeniously designed, ensuring both the convenience and accuracy of operation and the stability and durability of the device.

[0083] In an embodiment of the present invention, as Figure 2 shown, the control switch 300 is a snap switch;

[0084] The control switch 300 further includes a human body induction switch 400. The human body induction switch 400 is arranged on the outer surface of the composite control handle 4 and is located on one side of the forward and reverse control keys 41. The human body induction switch 400 is connected to the electric drive screw rod assembly 31 and is used to control the start and stop of the electric drive screw rod assembly 31.

[0085] Specifically, the structure and connection relationship of the control switch 300 will be further described. The control switch 300 is designed as a leaf switch. This design ensures the immediacy and accuracy of operations with its high sensitivity and fast response speed. It not only plays a crucial role in the operation of the bronchoscope but also enhances the user experience of the overall device.

[0086] To further improve the convenience and intelligence of the operation and reduce hand fatigue, a human body induction switch 400 is added to the outer surface of the composite control handle 4. This innovative design is located on one side of the forward and reverse control keys 41 and is cleverly integrated into the operation area of the handle. It neither affects the normal operation of the user nor can it real-time sense the presence of the user. The human body induction switch 400 is closely connected to the electric drive screw rod assembly 31 to form an intelligent start-stop control system. When the user's hand approaches or touches the human body induction switch 400, the switch will immediately sense and send a signal to the electric drive screw rod assembly 31 to trigger its start or stop. This design not only simplifies the operation process but also greatly improves the operation safety, avoiding accidental startup of the device caused by accidental touch or other reasons. At the same time, due to the setting of the human body induction switch 400, there is no need for manual pressing operation, further reducing hand fatigue and having a good use effect.

[0087] In an embodiment of the present invention, as Figure 5 shown, the composite control handle 4 further includes a support mechanism 5 provided on the inner wall of the vertical frame 2. The support mechanism 5 includes a frame 51. A vertical groove 201 is provided on the surface of the vertical frame 2 and is located outside the composite control handle 4. One end of the frame 51 is rotatably connected to the inner wall of the vertical groove 201 and is fixed by a fixed handle 52 provided on the surface of the vertical frame 2. A notch 53 is provided on the surface of the frame 51 corresponding to the position of the composite control handle 4.

[0088] Specifically, the structure and connection relationship of the composite control handle 4 will be further described. To reduce the force on the wrist during the operation and reduce operation fatigue, the support mechanism 5 is specially designed. The support mechanism 5 mainly consists of a frame 51, a fixed handle 52, and a notch 53. The fixed handle 52 is used to lock the position of the frame 51 to ensure the stability of the frame 51 during the operation. When using the support mechanism 5, the user first loosens the fixed handle 52 and then lowers the frame 51 outward until the other surface of the frame 51 is flush with the surface of the vertical frame 2. This design enables the frame 51 to provide a stable planar support for the user. Subsequently, the user tightens the fixed handle 52 to fix the position of the frame 51. At this time, the user can place the forearm on the frame 51, thereby effectively dispersing the force on the wrist and reducing operation fatigue.

[0089] It should be noted that a notch portion 53 is provided on the frame 51. This design allows the user's hand to easily enter the inside of the frame 51 to operate the composite control handle 4 when the support mechanism 5 is not in use. The ingenious setting of the notch portion 53 neither affects the normal use of the composite control handle 4 nor ensures the practicability and convenience of the support mechanism 5.

[0090] In an embodiment of the present invention, as Figure 6 shown, a supporting portion 54 is provided on the surface of the frame 51 away from the human body. One end of the supporting portion 54 away from the notch portion 53 is higher than one end of the supporting portion 54 close to the notch portion 53, and a sponge pad is provided on the surface of the supporting portion 54.

[0091] It should be noted that a constant temperature heating mechanism (not shown in the figure) is built in the supporting portion 54 described in this embodiment.

[0092] Specifically, further illustrate the structure and connection relationship of the frame 51. The setting of the supporting portion 54 ensures that the elbow is higher than the wrist. When the elbow is higher than the palm pressing position, the arm and the palm form a downward angle. This posture may enable the presser to more effectively utilize body weight and muscle strength to apply pressure. In addition, this posture also helps to maintain the stability and continuity of the press because the angle between the arm and the palm can provide better leverage. The setting of the constant temperature heating mechanism and the sponge pad further improves the use experience and reduces forearm fatigue.

[0093] As Figure 1 and Figure 7As shown in the figure, a fixing structure for a bronchoscope according to the present invention is used to fix the above-mentioned bronchoscope. It includes a fixing component 6 provided on a vertical frame 2. The fixing component 6 includes a bidirectional lead screw 61, a worm gear 62, two groups of fixing plate frames 63, a conical lifting plate frame 64, a worm 65, a rotating cylinder 66, and a pressing rod 67. The bidirectional lead screw 61 is rotatably connected to the inner wall of the fixing part 200 in the vertical frame 2. The worm gear 62 is fixedly connected to the center of the surface of the bidirectional lead screw 61. An opening groove 202 is formed on the surface of the fixing part 200 facing the bed body and is communicated with the inside of the fixing part 200. The two groups of fixing plate frames 63 are respectively slidably connected to the inner wall of the opening groove 202. One end of each of the two groups of fixing plate frames 63 penetrates into the inside of the fixing part 200 and is threadedly connected to the outer surface of the bidirectional lead screw 61. The conical lifting plate frames 64 are respectively slidably connected to the surfaces of the two groups of fixing plate frames 63, and a first spring is fixedly connected between the conical lifting plate frames 64 and the surfaces of the fixing plate frames 63. The worm 65 is rotatably connected to the inner wall of the fixing part 200 and meshes with the worm gear 62. The rotating cylinder 66 is rotatably connected to the inner wall of the fixing part 200 and is fixedly connected to one end of the worm 65. The pressing rod 67 is horizontally slidably connected to the inner wall of the opening groove 202 and is located between the two conical lifting plate frames 64. One end of the pressing rod 67 penetrates into the inside of the rotating cylinder 66 and is fixedly connected with a convex shaft. A spiral guide groove is formed at a position corresponding to the convex shaft on the surface of the rotating cylinder 66. One end of the convex shaft is located inside the spiral guide groove and is slidably connected to the inner wall of the spiral guide groove.

[0094] Specifically, the structure of the fixing component 6 is reasonable. During the first half of the installation, through the fixing component 6, the fixing part 200 can be smoothly sleeved outside the bed body. Such a design reduces the resistance during the installation process, thereby improving the installation efficiency. When the fixing part 200 is installed in the second half, the fixing component 6 can accurately adjust the position of the fixing plate frame 63 according to the extrusion force. This adjustment is achieved through a series of mechanical linkages, ensuring the stability and accuracy of the clamping. The use of the conical lifting plate frame 64 further enhances the clamping effect, enabling it to adapt to bed bodies of different thicknesses and achieving more stable fixation.

[0095] During use, it is only necessary to put the open groove 202 on the outside of the bed. Since the height difference between the conical lifting plate frames 64 is greater than the thickness of the bed, the fixing part 200 can be easily put on the bed. When the fixing part 200 is almost completely put on the bed, the extrusion rod 67 is in contact with the end surface of the bed. As the extrusion rod 67 moves and cooperates with the convex shaft and the spiral guide groove, it will drive the rotating drum 66 and the worm 65 to rotate, and then drive the worm wheel 62 and the two-way screw 61 to rotate. This series of actions eventually makes the two sets of fixed plate frames 63 and the conical lifting plate frames 64 move inward synchronously, clamping the bed to achieve automatic fixation. The fixing component 6 is not only easy to install and accurately adjust, but also can maintain high efficiency and stability during use. Its automatic fixing feature makes operation easier and greatly improves work efficiency. In addition, the supporting effect of the fixing component 6 is stable and reliable, which can ensure that the bed will not shake or shift during long-term use, thereby ensuring safety and comfort in use.

[0096] In one embodiment of the present invention, Figure 7 As shown, the extrusion rod 67 also includes a threaded adjustment rod 68, which is threadedly connected to the inner wall of the extrusion rod 67. One end of the threaded adjustment rod 68 passes through the outside of the extrusion rod 67 and contacts the surface of the bed. The other end of the threaded adjustment rod 68 passes through the outside of the fixing part 200 and is provided with an adjustment handle 69.

[0097] Specifically, the structure and connection relationship of the extrusion rod 67 are further explained. The provision of the threaded adjustment rod 68 is not only convenient for adjusting the triggering timing of the extrusion rod 67, but also convenient for providing a reset space for the extrusion rod 67, thereby changing the spacing between the conical lifting plate frames 64, making it easier for the fixing part 200 to be pulled out.

[0098] When the fixing part 200 needs to be pulled out, the threaded adjustment rod 68 is rotated to move it outward. After the squeezing force of the bed is lost, the squeezing rod 67 is reset under the action of the first spring. During the reset process, the squeezing rod 67 also adjusts the spacing between the conical lifting plate frames 64 to facilitate the extraction of the fixing part 200.

[0099] When in use, the threaded adjustment rod 68 is turned to move it toward the inside of the fixing part 200. After the movement, the contact time with the bed is changed, thereby synchronously changing the triggering time of the extrusion rod 67 and linking the spacing between the conical lifting plate frames 64 to facilitate clamping of beds of different thicknesses. The structural design and connection relationship of the extrusion rod 67 have been carefully optimized to ensure that the fixing assembly 6 can stably and reliably fix the bed. At the same time, the setting of the threaded adjustment rod 68 also provides great convenience for adjusting and resetting the triggering timing of the extrusion rod 67. This optimized design not only improves the practicality and flexibility of the fixing assembly 6, but also brings a more convenient and efficient use experience to users.

[0100] In summary, a bronchoscope and a bronchoscope fixing structure according to an embodiment of the present invention have reasonable structures and are easy to operate. Through a series of innovative designs and technical optimizations, the problems of hand soreness and insufficient flexibility in traditional bronchoscope operations are successfully solved, which has important clinical significance and broad application prospects, and has good use effects.

[0101] In the description of this specification, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0102] In the description of this specification, the description with reference to terms such as "an embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0103] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be construed as limiting the present invention. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present invention.

Claims

1. A bronchoscope, comprising a tube body (1), characterized in that, It further includes: Erect support (2): internally provided with a power transmission component (21); Six-direction transmission mechanism (3): includes an electric drive screw rod component (31), a first key rod (32) and a pressure plate (33). The electric drive screw rod component (31) is arranged on the surface of the erect support (2). The top of the tube mirror body (1) is rotatably connected to the bottom of the fixed seat (301) in the electric drive screw rod component (31), and the bottom of the tube mirror body (1) is fixedly connected to the inner wall of the sliding seat (302) in the electric drive screw rod component (31). The first key rod (32) is fixedly connected to the top of the tube mirror body (1) and is located inside the fixed seat (301). The pressure plate (33) is arranged on the surface of the fixed seat (301) and is connected to the shift lever (12) in the tube mirror body (1) through the transmission box (11) on the surface of the tube mirror body (1). The pressure plate (33) and the first key rod (32) are respectively connected to the output end of the power transmission component (21); Composite control handle (4): penetrates through the surface of the erect support (2) and is connected to the control switch (300) inside the erect support (2) for controlling the start and stop of the electric drive screw rod component (31). The outer end surface thereof is provided with forward and reverse control keys (41) connected to the electric drive screw rod component (31), and the inner end surface thereof is provided with a double-link adjustment gear disc (42) and is connected to the input end of the power transmission component (21).

2. The bronchoscope according to claim 1, characterized in that, The transmission box (11) includes a box body (111), a transmission gear (112), a transmission rack (113) and a return spring (114). The box body (111) is fixedly connected to the surface of the tube mirror body (1). The transmission gear (112) is rotatably connected to the inner wall of the box body (111). One end of the central axis of the transmission gear (112) penetrates outside the box body (111) and is connected to the central axis of the shift lever (12). The transmission rack (113) is vertically slidably connected to the inner wall of the box body (111) and meshes with the transmission gear (112). One end of the transmission rack (113) penetrates through the top of the box body (111), and a return spring (114) is fixedly connected between the top of the box body (111) and the end of the transmission rack (113) penetrating through the top of the box body (111). The end of the transmission rack (113) penetrating through the top of the box body (111) is slidably connected to the bottom of the pressure plate (33).

3. The bronchoscope according to claim 2, characterized in that, The pressure plate (33) includes a first key cylinder (331) and a disc body (332). The first key cylinder (331) is rotatably connected to the surface of the fixed seat (301). One end of the first key cylinder (331) is connected to the output end of the power transmission component (21). A threaded screw rod is fixedly connected to the bottom of the first key cylinder (331). The disc body (332) is threadedly connected to the outer surface of the threaded screw rod and is sleeved outside the fixed seat (301). An annular groove is formed at the bottom of the disc body (332). The end of the transmission rack (113) penetrating through the top of the box body (111) is located in the annular groove and is slidably connected to the inner wall of the annular groove.

4. A bronchoscope according to claim 3, wherein, The power transmission assembly (21) includes two sets of lower wheels (211), two sets of upper wheels (212), two sets of synchronizing rods (213), a rod holder (216), a first shaft seat (217), and a second key cylinder (218). The two sets of lower wheels (211) are respectively rotatably connected to the inner wall of the lower end of the vertical frame (2) and are connected to the double-link adjusting gear disc (42). The two sets of upper wheels (212) are respectively rotatably connected to the inner wall of the upper end of the vertical frame (2). The two sets of synchronizing rods (213) are respectively rotatably connected to the inner wall of the vertical frame (2) and are located between the two sets of lower wheels (211) and the two sets of upper wheels (212). Synchronizing gears (214) are respectively provided at positions corresponding to the surfaces of the two sets of lower wheels (211) and the lower surfaces of the two sets of synchronizing rods (213) and at positions corresponding to the surfaces of the two sets of upper wheels (212) and the upper surfaces of the two sets of synchronizing rods (213), and are connected by synchronizing belts (215). The rod holder (216), the first shaft seat (217), and the second key cylinder (218) are sequentially arranged at the top of the vertical frame (2). A vertical shaft rod (219) is rotatably connected to the inner wall of the rod holder (216). A second key rod (2110) is rotatably connected to the surface of the rod holder (216) at a position corresponding to the first shaft seat (217). One end of the second key rod (2110) penetrates into the interior of the rod holder (216), and upper driving gears (2111) are respectively provided at positions corresponding to the surface of one end of the vertical shaft rod (219) and are meshed with each other. The other end of the vertical shaft rod (219) penetrates into the interior of the vertical frame (2) and is fixedly connected with a left driving gear (2112). The left driving gear (2112) is meshed with one of the upper wheels (212). One end of the second key cylinder (218) penetrates into the interior of the vertical frame (2) and is fixedly connected with a right driving gear (2113). The right driving gear (2113) is meshed with the other upper wheel (212); The first key rod (32) is located inside the second key cylinder (218) and is slidably connected to the inner wall of the second key cylinder (218); The first key cylinder (331) is respectively slidably connected to the inner walls of the first shaft seat (217) and the upper wheel (212) meshed with the right driving gear (2113). One end of the first key cylinder (331) penetrates out of the top of the first shaft seat (217) and is sleeved outside the second key rod (2110). The first key cylinder (331) is slidably connected to the surface of the second key rod (2110).

5. A bronchoscope according to claim 4, characterized in that, A limit shaft seat (40) is provided at a position corresponding to the surface of the vertical frame (2) and the compound control handle (4). The compound control handle (4) is slidably connected to the inner wall of the limit shaft seat (40). One end of the compound control handle (4) penetrates into the interior of the vertical frame (2), and a compression spring (43) is fixedly connected between the compound control handle (4) and the inner wall of the vertical frame (2). The double-link adjusting gear disc (42) is arranged on the surface of the end of the compound control handle (4) that penetrates into the interior of the vertical frame (2) and is located on one side of the bottom of the compression spring (43); The double-link adjusting gear disc (42) includes a first tooth column (421) and a second tooth column (422). The first tooth column (421) is fixedly connected to the surface of one end of the composite control handle (4) penetrating into the inside of the vertical frame (2), and meshes with one group of the lower side wheels (211). The second tooth column (422) is vertically slidably connected to the inner wall of the vertical frame (2) and is rotatably connected to the bottom of the first tooth column (421). The second tooth column (422) meshes with the other group of lower side wheels (211). The bottom of the second tooth column (422) is rotatably connected to the top of the elastic contact piece in the control switch (300). A rotating gear disc (4221) is rotatably connected to the outer end surface of the composite control handle (4), and one end of the central axis of the rotating gear disc (4221) is connected to the second tooth column (422).

6. A bronchoscope according to claim 1, characterized in that, The control switch (300) is a snap switch; The control switch (300) further includes a human body induction switch (400). The human body induction switch (400) is arranged on the outer end surface of the composite control handle (4) and is located on one side of the forward and reverse control keys (41). The human body induction switch (400) is connected to the electric drive lead screw assembly (31) for controlling the start and stop of the electric drive lead screw assembly (31).

7. A bronchoscope according to claim 1, characterized in that, The composite control handle (4) further includes a support mechanism (5) arranged on the inner wall of the vertical frame (2). The support mechanism (5) includes a frame (51). A vertical groove (201) is formed on the surface of the vertical frame (2) and is located outside the composite control handle (4). One end of the frame (51) is rotatably connected to the inner wall of the vertical groove (201) and is fixed by a fixed handle (52) arranged on the surface of the vertical frame (2). A notch portion (53) is formed on the surface of the frame (51) corresponding to the position of the composite control handle (4).

8. A bronchoscope according to claim 7, characterized in that, A supporting portion (54) is arranged on the surface of the frame (51) away from the human body. One end of the supporting portion (54) away from the notch portion (53) is higher than one end of the supporting portion (54) close to the notch portion (53). A sponge pad is arranged on the surface of the supporting portion (54).

9. A bronchoscope fixing structure for fixing the bronchoscope according to any one of claims 1-8, characterized in that, It includes a fixing component (6) arranged on the vertical frame (2). The fixing component (6) includes a bidirectional lead screw (61), a worm gear (62), two groups of fixed plate frames (63), a conical lifting plate frame (64), a worm (65), a rotating cylinder (66) and an extrusion rod (67). The bidirectional lead screw (61) is rotatably connected to the inner wall of the fixed part (200) in the vertical frame (2). The worm gear (62) is fixedly connected to the center of the surface of the bidirectional lead screw (61). An opening groove (202) is formed on one side surface of the fixed part (200) facing the bed body and is communicated with the inside of the fixed part (200). The two groups of fixed plate frames (63) are respectively slidably connected to the inner wall of the opening groove (202). One ends of the two groups of fixed plate frames (63) respectively penetrate into the inside of the fixed part (200) and are threadedly connected to the outer surface of the bidirectional lead screw (61). The conical lifting plate frames (64) are respectively slidably connected to the surfaces of the two groups of fixed plate frames (63), and a first spring is fixedly connected between the conical lifting plate frames (64) and the surfaces of the fixed plate frames (63). The worm (65) is rotatably connected to the inner wall of the fixed part (200) and meshes with the worm gear (62). The rotating cylinder (66) is rotatably connected to the inner wall of the fixed part (200) and is fixedly connected to one end of the worm (65). The extrusion rod (67) is horizontally slidably connected to the inner wall of the opening groove (202) and is located between the two groups of conical lifting plate frames (64). One end of the extrusion rod (67) penetrates into the inside of the rotating cylinder (66) and is fixedly connected with a convex shaft. A spiral guide groove is formed at a position corresponding to the convex shaft on the surface of the rotating cylinder (66). One end of the convex shaft is located inside the spiral guide groove and is slidably connected to the inner wall of the spiral guide groove.

10. The bronchoscope fixing structure according to claim 9, wherein, The extrusion rod (67) further includes a threaded adjusting rod (68). The threaded adjusting rod (68) is threadedly connected to the inner wall of the extrusion rod (67). One end of the threaded adjusting rod (68) penetrates out of the outside of the extrusion rod (67) and contacts the surface of the bed body. The other end of the threaded adjusting rod (68) penetrates out of the outside of the fixed part (200) and is provided with an adjusting handle (69).

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