A fiberoptic bronchoscope

Abstract

The present invention relates to the field of medical devices, and discloses a fiber bronchoscope, including a detection tube sleeve and a handle assembly fixed at one end of the detection tube sleeve, wherein the handle assembly is specifically a left handle and a right handle, and the left handle is bolted to the right handle. The present invention provides that the appearance of the handle assembly conforms to the ergonomic design, so that the operation is more convenient during operation, and secondly, an expansion structure is arranged in the detection sleeve, and when observing, the expansion structure is expanded, so that the diameter of the detection sleeve is increased and the outer wall of the detection sleeve is stretched to a certain distance to open the human tissue, and at the same time, when expanding, the positions of the two sides are parallel and staggered, so that when expanding, it is more stable, and there is no obstruction, and the organs can be better observed in cooperation with the lighting structure, and when encountering some organs that are close to each other and lack of gaps, they can be adjusted through the control structure to become smaller, so that the camera can see more clearly.

Description

Technical Field

[0001] The invention relates to the technical field of medical instruments, in particular to a fiber bronchoscope. Background Art

[0002] Fiberoptic bronchoscopes are endoscope-type tools used for lung disease examinations, tracheal examinations, and bronchial examinations. They are often used in clinical practice for bronchial lesion observations, biopsy sampling, and cytological examinations. However, the following problems exist during use:

[0003] After the detection end of the fiber bronchoscope enters the human body, due to the lack of an effective expansion mechanism, its lens is easily blocked or compressed by the surrounding human tissues. This blockage not only limits the clarity of the inspection field, but also may hinder the accurate observation and sampling of the lesion area, thus affecting the accuracy and efficiency of the entire inspection process. Summary of the invention

[0004] The problem to be solved by the present invention is that after the detection end of the fiber bronchoscope enters the human body, due to the lack of an effective expansion mechanism, its lens is easily blocked or compressed by surrounding human tissues.

[0005] In order to solve the above technical problems, the technical solution of the present invention is: a fiber bronchoscope, comprising a detection tube sleeve and a handle assembly fixed at one end of the detection tube sleeve, the handle assembly is specifically a left handle and a right handle, the left handle is bolted to the right handle, the handle assembly is covered with a handle rubber bag, a wire wheel is arranged in the handle assembly, a steel wire is arranged on the wire wheel, a braided tube is arranged in the handle assembly, a working channel tube is arranged directly below the braided tube, a Y-shaped piece is arranged at one end of the handle assembly, and one end of the Y-shaped piece The end of the Y-shaped member is movably connected with a silicone tube, one end of the silicone tube is provided with a silicone tube joint, and the silicone tube joint is clamped and arranged at the end of the handle assembly, the other end of the Y-shaped member is clamped and arranged with a Y-shaped member valve, the outlet of the Y-shaped member valve is placed at the special-shaped end of the handle assembly, and a silicone tube button is rotatably arranged at the special-shaped end of the handle assembly, the center of the handle assembly is electrically connected with a transfer circuit board, and the transfer circuit board is electrically connected with a camera and a wire, one end of the wire is exposed outside the handle assembly, and the end thereof is electrically connected with a joint;

[0006] A first driving rod is slidably provided at the center of the handle assembly, a telescopic sleeve rod is fixedly connected to the end of the first driving rod, a partition is provided on the inner wall of the telescopic sleeve rod, a limit cover matched with the partition is fixedly connected to the top of the telescopic sleeve rod, an expansion structure is rotatably provided on the outer wall of the telescopic sleeve rod, one end of the camera penetrates the expansion structure, and an end of the camera is exposed outside the expansion structure, and the expansion structure expands to squeeze and push human tissue away, a lighting structure is provided on the top of the expansion structure, and the lighting structure is located directly above the camera, and a control structure is provided on the outer wall of the handle assembly, and the control structure is used to drive the lighting structure to adjust the angle and expand the expansion structure.

[0007] Preferably, the expansion structure includes a mounting plate, an expansion plate and an elastic frame, the mounting plate is located at the end of the braided tube, the expansion plate is slidably arranged on the mounting plate and distributed in an array, the top of the mounting plate is provided with slide grooves distributed in a circular array, the bottom of the expansion plate is fixedly connected with a slider, the slider is slidably arranged in the slide groove, the telescopic sleeve is placed in the center of the mounting plate, the outer wall of the telescopic sleeve is rotatably provided with a first connecting rod, one end of the first connecting rod is fixedly connected with a connecting plate, the connecting plate is fixedly connected to the inner wall of the expansion plate, the elastic frame is rotatably connected to the gap between the connecting plates, and its two ends are connected to the side walls of the connecting plates.

[0008] Preferably, the lighting structure includes a connecting plate, a connecting block and a lighting lamp, wherein the connecting plate is located on the top of the mounting plate, and a connecting block is fixedly connected to one side of the connecting plate. There are two connecting blocks and they are distributed at right angles. A rotating part is rotatably provided on the inner wall of one of the connecting blocks, and the rotating part is rotatably connected to the lighting lamp. An adjusting part is rotatably provided on the inner wall of the other connecting block, and one end of the adjusting part is connected to the outer wall of the lighting lamp.

[0009] Preferably, a second connecting rod is rotatably provided on the outer wall of one of the connecting blocks, one end of the second connecting rod is connected to the input end of the rotating member, and the other end of the second connecting rod is fixedly connected to the first pull rod, and a first driving disk is rotatably provided on the outer wall of the other connecting block, a fixed connecting rod is fixedly connected at the eccentric axis of the first driving disk, one end of the fixed connecting rod is fixedly connected to the second pull rod, and the first pull rod and the second pull rod are both connected to the control structure.

[0010] Preferably, the control structure includes a second driving rod, a third connecting rod, an axial rod, a push button and a turning button, one end of the second driving rod is rotatably connected to the third connecting rod, one end of the third connecting rod is connected to the second pull rod, the top of the second driving rod is fixedly connected to the driving connecting rod, the driving connecting rod is fixedly connected to the eccentric axis of the push button, and the push button is rotatably set on the handle assembly.

[0011] Preferably, a second driving disk is fixedly connected to the bottom of the shaft, a first pulling rod is fixedly connected to the eccentric portion of the second driving disk, and driven teeth are sleeved on the top of the shaft.

[0012] Preferably, the driven teeth are meshed with the main driving teeth, the center of the main driving teeth is fixedly connected with a rotating rod, one end of the rotating rod is fixedly connected with a rotating knob, and the rotating knob is rotatably arranged on the handle assembly.

[0013] Preferably, the handle assembly is electrically connected to a temperature control end, a temperature detection end is disposed on one side of a surface of the temperature control end, and a detection line is disposed at the bottom of the temperature detection end.

[0014] Preferably, the bottom of the temperature control end is electrically connected to a preheating wire, and the preheating wire and the detection wire are both wound around the inner wall of the detection tube sleeve.

[0015] Preferably, one end of the first driving rod is fixedly connected to a push rod, the top of the push rod is fixedly connected to a push block, and the push block is slidably arranged on the handle assembly.

[0016] Compared with the prior art, the technical solution of the present invention has the following advantages:

[0017] (1) The appearance of the handle assembly conforms to the ergonomic design, which makes the operation more convenient. Secondly, an expansion structure is arranged in the detection sleeve. When observing, the expansion structure expands, thereby increasing the diameter of the detection sleeve and making its outer wall stretch the human tissue a certain distance. At the same time, when expanding, the positions of the two sides are parallel and staggered, so that when expanding, it is more stable. There is no obstruction. In combination with the lighting structure, the organs can be better observed. When encountering some organs that are close to each other and lack gaps, they can be adjusted through the control structure to make them smaller, so that the camera can see more clearly;

[0018] (2) While expanding, the expansion structure can also be linked with the lighting structure to allow the camera to see more clearly. The lighting structure is controlled by the control structure on the handle assembly to rotate left and right or up and down to avoid blind spots in lighting;

[0019] (3) When the device is started, the temperature control end can be started to automatically heat the device to a temperature suitable for the human body. At the same time, when heating, a temperature detection end is provided on one side of the surface of the temperature control end. The temperature detection end is wrapped around the inner wall of the detection tube sleeve through a detection line to detect the surface temperature of the detection tube sleeve, so that the temperature of the instrument entering the human body is more suitable to avoid stimulation caused by coldness. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1This is a schematic diagram of the expansion linkage structure of the present invention;

[0021] Figure 2 It is an exploded view of the main structure of the present invention;

[0022] Figure 3 It is a schematic diagram of the expansion structure of the present invention;

[0023] Figure 4 This is a schematic diagram of the external structure of the expansion structure of the present invention;

[0024] Figure 5 It is a schematic diagram of the bottom of the expansion structure of the present invention;

[0025] Figure 6 It is a schematic diagram of the internal components of the expansion structure of the present invention;

[0026] Figure 7 This is a schematic diagram of the lighting structure of the present invention;

[0027] Figure 8 This is a schematic diagram of a preferred angle of the lighting structure of the present invention;

[0028] Fig. 9 This is another preferred angle schematic diagram of the lighting structure of the present invention;

[0029] Fig.10 It is a schematic diagram of the control structure of the present invention.

[0030] In the figure: 1, connector; 2, camera; 3, steel wire; 4, braided tube; 5, working channel tube; 6, wire; 7, rubber coating on handle; 8, adapter circuit board; 9, steel wire wheel; 10, left handle; 11, silicone tube connector; 12, silicone tube; 13, silicone tube button; 14, Y-shaped piece; 15, right handle; 16, Y-shaped piece valve; 17, mounting plate; 1701, slide; 18, connecting block; 19, expansion board; 20, first drive rod; 21, connecting plate; 22, push rod; 2201, Push block; 23, temperature control end; 24, elastic frame; 2401, connecting plate; 25, telescopic sleeve rod; 26, limit cover; 27, first connecting rod; 28, first pull rod; 29, second pull rod; 30, first driving disk; 31, second connecting rod; 32, rotating part; 33, lighting lamp; 34, adjusting part; 35, second driving rod; 36, third connecting rod; 37, shaft rod; 38, second driving disk; 39, driven tooth; 40, push button; 41, turn button; 4101, turn rod; 42, main driving tooth. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical solution and advantages of the embodiments of the present disclosure clearer, the technical solution of the embodiments of the present disclosure will be clearly and completely described below in conjunction with the drawings of the embodiments of the present disclosure. Obviously, the described embodiments are part of the embodiments of the present disclosure, not all of the embodiments. Based on the described embodiments of the present disclosure, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present disclosure.

[0032] Unless otherwise defined, the technical terms or scientific terms used in the present disclosure should be understood by people with ordinary skills in the field to which the present disclosure belongs. "Include" or "comprise" and other similar words used in the present disclosure mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and other similar words are not limited to physical or mechanical connections, but may also include electrical connections, whether direct or indirect. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0033] like Figures 1 to 10 As shown, a fiber bronchoscope provided by the present invention comprises a detection tube sleeve and a handle assembly fixed at one end of the detection tube sleeve, wherein the handle assembly is specifically a left handle 10 and a right handle 15, the left handle 10 and the right handle 15 are bolted together, the handle assembly is coated with a handle rubber bag 7, a wire wheel 9 is arranged in the handle assembly, a steel wire 3 is arranged on the wire wheel 9, a braided tube 4 is arranged in the handle assembly, a working channel tube 5 is arranged directly below the braided tube 4, a Y-shaped piece 14 is arranged at one end of the handle assembly, and a silicone rubber is movably connected to one end of the Y-shaped piece 14 The silicone tube 12 is provided with a silicone tube joint 11 at one end thereof, and the silicone tube joint 11 is clamped and arranged at the end of the handle assembly. The other end of the Y-shaped member 14 is clamped and arranged with a Y-shaped member valve 16, and the outlet of the Y-shaped member valve 16 is placed at the special-shaped end of the handle assembly. A silicone tube button 13 is rotatably arranged at the special-shaped end of the handle assembly. The center of the handle assembly is electrically connected to a transfer circuit board 8, and the transfer circuit board 8 is electrically connected to a camera 2 and a wire 6. One end of the wire 6 is exposed outside the handle assembly, and its end is electrically connected to a connector 1;

[0034] A first driving rod 20 is slidably provided at the center of the handle assembly, and a telescopic sleeve rod 25 is fixedly connected to the end of the first driving rod 20. The inner wall of the telescopic sleeve rod 25 is provided with a partition, and a limit cover 26 matched with the partition is fixedly connected to the top of the telescopic sleeve rod 25. An expansion structure is rotatably provided on the outer wall of the telescopic sleeve rod 25. One end of the camera 2 passes through the expansion structure, and its end is exposed outside the expansion structure. The expansion structure expands to squeeze and push human tissue away. An illumination structure is provided on the top of the expansion structure, and the illumination structure is located directly above the camera 2. A control structure is provided on the outer wall of the handle assembly, and the control structure is used to drive the illumination structure to adjust the angle and expand the expansion structure.

[0035] The expansion structure includes a mounting plate 17, an expansion plate 19 and an elastic frame 24, the mounting plate 17 is located at the end of the braided tube 4, the expansion plate 19 is slidably arranged on the mounting plate 17 and is distributed in an array, the top of the mounting plate 17 is provided with a slide groove 1701 distributed in a circular array, the bottom of the expansion plate 19 is fixedly connected with a slider, the slider is slidably arranged in the slide groove 1701, the telescopic sleeve rod 25 is placed in the center of the mounting plate 17, the outer wall of the telescopic sleeve rod 25 is rotatably provided with a first connecting rod 27, one end of the first connecting rod 27 is fixedly connected with a connecting plate 2401, and the connecting plate 2401 is fixedly connected to The inner wall of the expansion plate 19 and the elastic frame 24 are rotatably connected to the gap between the connecting plates 2401, and both ends thereof are connected to the side walls of the connecting plates 2401. When the expansion structure is expanding, the telescopic sleeve rod 25 slides downward to make the first connecting rod 27 rotate and push the connecting plate 2401. After being pushed, the connecting plate 2401 can drive the expansion plate 19 to slide and expand on the slide groove 1701, and at the same time drive the elastic frame 24 to extend synchronously, so that the diameter of the detection sleeve is increased by the push of the expansion plate 19 and its outer wall stretches the human tissue a certain distance.

[0036] The lighting structure includes a connecting disk 21, a connecting block 18 and a lighting lamp 33. The connecting disk 21 is located on the top of the mounting disk 17. One side of the connecting disk 21 is fixedly connected to the connecting block 18. There are two connecting blocks 18 and they are distributed at right angles. A rotating member 32 is rotatably provided on the inner wall of one of the connecting blocks 18. The rotating member 32 is rotatably connected to the lighting lamp 33. An adjusting member 34 is rotatably provided on the inner wall of the other connecting block 18. One end of the adjusting member 34 is connected to the outer wall of the lighting lamp 33.

[0037] A second connecting rod 31 is rotatably provided on the outer wall of one of the connecting blocks 18, one end of the second connecting rod 31 is connected to the input end of the rotating member 32, and the other end of the second connecting rod 31 is fixedly connected to the first pull rod 28. A first driving disk 30 is rotatably provided on the outer wall of the other connecting block 18, and a fixed connecting rod is fixedly connected to the eccentric axis of the first driving disk 30, and one end of the fixed connecting rod is fixedly connected to the second pull rod 29. The first pull rod 28 and the second pull rod 29 are both connected to the control structure. When it is necessary to control the lighting lamp 33 to adjust the angle up and down, the control structure controls the first pull rod 28 to push and pull to drive the second connecting rod 31 to rotate, and at the same time, the rotating member 32 drives the lighting lamp 33 to rotate up and down, thereby adjusting the up and down angles of the lighting lamp 33. When controlling the left and right angles of the lighting lamp 33, the control structure controls the second pull rod 29 to push and pull to drive the fixed connecting rod to move in a semi-arc shape on the first driving disk 30, so that the first driving disk 30 drives the adjustment member 34 to control the left and right lighting angles of the lighting lamp 33.

[0038] The control structure includes a second driving rod 35, a third connecting rod 36, an axis rod 37, a push button 40 and a turning button 41. One end of the second driving rod 35 is rotatably connected to the third connecting rod 36, one end of the third connecting rod 36 is connected to the second pull rod 29, and the top of the second driving rod 35 is fixedly connected to the driving connecting rod, which is fixedly connected to the eccentric part of the push button 40, and the push button 40 is rotatably set on the handle assembly.

[0039] The bottom of the shaft 37 is fixedly connected to the second driving disk 38, the eccentric part of the second driving disk 38 is fixedly connected to the first pull rod 28, the top of the shaft 37 is sleeved with a driven tooth 39, the teeth of the driven tooth 39 are meshed with the main driving tooth 42, the center of the main driving tooth 42 is fixedly connected to a rotating rod 4101, one end of the rotating rod 4101 is fixedly connected to a rotating button 41, the rotating button 41 is rotatably set on the handle assembly, when the push button 40 is pushed upward or downward, the driving connecting rod pulls the second pull rod 29, so that the second pull rod 29 drives the first driving disk 30 to move The illuminating lamp 33 is moved in a semi-arc shape so as to adjust the illumination angle left and right. By rotating the knob 41, the knob 41 drives the main driving gear 42 to rotate, and the main driving gear 42 engages to drive the driven gear 39 to rotate. The driven gear 39 drives the shaft rod 37 to rotate and causes the second driving disk 38 at the bottom of the shaft rod 37 to rotate and pull the first pull rod 28 to push and pull, so that the first pull rod 28 drives the second connecting rod 31 to rotate. When the second connecting rod 31 rotates, the rotating member 32 drives the illuminating lamp 33 to rotate up and down, thereby adjusting the up and down illumination angles of the illuminating lamp 33.

[0040] The handle assembly is electrically connected to a temperature control end 23, a temperature detection end is provided on one side of the surface of the temperature control end 23, a detection line is provided at the bottom of the temperature detection end, and a preheating line is electrically connected to the bottom of the temperature control end 23. Both the preheating line and the detection line are wound around the inner wall of the detection tube sleeve. When the device is started, the temperature control end 23 can be started to automatically heat up the device as a whole to a temperature suitable for the human body. At the same time, when heating is performed, a temperature detection end is provided on one side of the surface of the temperature control end 23. The temperature detection end is wound around the inner wall of the detection tube sleeve through the detection line, which is used to detect the surface temperature of the detection tube sleeve, so that the temperature of the instrument entering the human body is more suitable to avoid stimulation caused by coldness.

[0041] One end of the first driving rod 20 is fixedly connected to a push rod 22, and the top of the push rod 22 is fixedly connected to a push block 2201. The push block 2201 is slidably set on the handle assembly. After being pushed, the push block 2201 can make the push rod 22 drive the first driving rod 20 to push and pull, so that the first driving rod 20 drives the telescopic sleeve rod 25 to pull, thereby expanding the expansion structure.

[0042] The working principle and use process of the present invention: First, when an inspection is required, the user first controls the initial state of the device by operating the handle assembly. The appearance of the handle assembly conforms to the ergonomic design, which makes the operation more convenient. The handle assembly is provided with a temperature control terminal 23. The user can start the temperature control terminal 23 to heat the entire device to a temperature suitable for the human body. At the same time, the temperature detection terminal is wound around the inner wall of the detection tube sleeve through the detection line to monitor the temperature of the surface of the detection tube sleeve in real time to ensure that the temperature of the instrument fits the human body and avoids cold stimulation;

[0043] Secondly, the user pushes the push block 2201 on the handle assembly to make the push rod 22 drive the first drive rod 20 to push and pull. The push and pull action of the first drive rod 20 will drive the telescopic sleeve rod 25 to move up and down. The downward movement of the telescopic sleeve rod 25 will cause the first connecting rod 27 to rotate and push the connecting plate 2401. After being pushed, the connecting plate 2401 will drive the expansion plate 19 to slide and expand on the slide groove 1701. At the same time, the expansion of the expansion plate 19 will drive the elastic frame 24 to extend synchronously, thereby increasing the diameter of the detection sleeve, and the outer wall will open up a certain distance of the human tissue to facilitate the entry and observation of the fiber bronchoscope;

[0044] Finally, the user can adjust the angle of the lighting structure by operating the control structure on the handle assembly. The control structure includes a push button 40 and a rotary knob 41. When the up and down angles of the lighting lamp 33 need to be adjusted, the user can push the push button 40 upward or downward. The push of the push button 40 causes the driving connecting rod to pull the second pull rod 29, so that the second pull rod 29 drives the first driving disk 30 to move in a semi-arc shape, thereby causing the lighting lamp 33 to rotate up and down to adjust the lighting angle. When the left and right angles of the lighting lamp 33 need to be adjusted, the user can turn the rotary knob 41. The rotation of the rotary knob 41 drives the main driving gear 42 to rotate, and the rotation of the main driving gear 42 engages and drives the driven gear 39 to rotate. The rotation of the driven gear 39 drives the shaft rod 37 to rotate, and causes the second driving disk 38 at the bottom of the shaft rod 37 to rotate and pull the first pull rod 28 to push and pull. The pushing and pulling of the first pull rod 28 causes the second connecting rod 31 to rotate, thereby causing the rotating member 32 to drive the lighting lamp 33 to rotate left and right to adjust the lighting angle.

[0045] The above embodiments are only exemplary embodiments of the present invention and are not intended to limit the present invention. The protection scope of the present invention is defined by the claims. Those skilled in the art may make various modifications or equivalent substitutions to the present invention within the essence and protection scope of the present invention, and such modifications or equivalent substitutions shall also be deemed to fall within the protection scope of the present invention.

Claims

1. A fiber bronchoscope, comprising a detection tube sleeve and a handle assembly fixed to one end of the detection tube sleeve, characterized in that: The handle assembly specifically comprises a left handle (10) and a right handle (15), the left handle (10) and the right handle (15) being connected by bolts, the handle assembly being coated with a handle rubber bag (7), a wire wheel (9) being arranged inside the handle assembly, a steel wire (3) being arranged on the wire wheel (9), a braided tube (4) being arranged inside the handle assembly, a working channel tube (5) being arranged directly below the braided tube (4), a Y-shaped piece (14) being arranged at one end of the handle assembly, a silicone tube (12) being movably clamped at one end of the Y-shaped piece (14), and a silicone tube (12) being arranged at one end of the silicone tube (12). A silicone tube connector (11) is provided, the silicone tube connector (11) is snap-fitted to the end of the handle assembly, the other end of the Y-shaped member (14) is snap-fitted to a Y-shaped member valve (16), the outlet of the Y-shaped member valve (16) is disposed at the special-shaped end of the handle assembly, a silicone tube button (13) is rotatably provided at the special-shaped end of the handle assembly, a transfer circuit board (8) is electrically connected to the center of the handle assembly, a camera (2) and a wire (6) are electrically connected to the transfer circuit board (8), one end of the wire (6) is exposed outside the handle assembly, and the end thereof is electrically connected to the connector (1); A first driving rod (20) is slidably arranged at the center of the handle assembly, a telescopic sleeve rod (25) is fixedly connected to the end of the first driving rod (20), an inner wall of the telescopic sleeve rod (25) is provided with a partition, a limit cover (26) adapted to the partition is fixedly connected to the top of the telescopic sleeve rod (25), an expansion structure is rotatably arranged on the outer wall of the telescopic sleeve rod (25), one end of the camera (2) passes through the expansion structure, and an end thereof is exposed outside the expansion structure, the expansion structure expands to squeeze and push human tissue away, an illumination structure is arranged on the top of the expansion structure, and the illumination structure is located directly above the camera (2), and a control structure is arranged on the outer wall of the handle assembly, the control structure can be used to drive the illumination structure to adjust the angle and the expansion of the expansion structure; The expansion structure comprises a mounting plate (17), an expansion plate (19) and an elastic frame (24); the mounting plate (17) is located at the end of the braided tube (4); the expansion plate (19) is slidably arranged on the mounting plate (17) and arranged in an array; a slide groove (1701) arranged in a circular array is provided on the top of the mounting plate (17); a slider is fixedly connected to the bottom of the expansion plate (19); the slider is slidably arranged in the slide groove (1701); the telescopic sleeve rod (25) is placed at the center of the mounting plate (17); a first connecting rod (27) is rotatably arranged on the outer wall of the telescopic sleeve rod (25); one end of the first connecting rod (27) is fixedly connected to a connecting plate (2401); the connecting plate (2401) is fixedly connected to the inner wall of the expansion plate (19); the elastic frame (24) is rotatably connected to the gap between the connecting plates (2401); and both ends of the elastic frame (24) are connected to the side walls of the connecting plates (2401); The lighting structure comprises a connection plate (21), a connection block (18) and a lighting lamp (33), wherein the connection plate (21) is located on the top of the mounting plate (17), and a connection block (18) is fixedly connected to one side of the connection plate (21), and the connection blocks (18) are specifically two and are arranged at right angles, wherein a rotating member (32) is rotatably provided on the inner wall of one of the connection blocks (18), and the lighting lamp (33) is rotatably connected to the rotating member (32), and an adjusting member (34) is rotatably provided on the inner wall of the other connection block (18), and one end of the adjusting member (34) is connected to the outer wall of the lighting lamp (33); A second connecting rod (31) is rotatably provided on the outer wall of one of the connecting blocks (18), one end of the second connecting rod (31) is connected to the input end of the rotating member (32), and the other end of the second connecting rod (31) is fixedly connected to the first pull rod (28); a first driving disk (30) is rotatably provided on the outer wall of the other connecting block (18), a fixed connecting rod is fixedly connected at an eccentric position of the first driving disk (30), one end of the fixed connecting rod is fixedly connected to the second pull rod (29), and the first pull rod (28) and the second pull rod (29) are both connected to the control structure.

2. A fiber bronchoscope according to claim 1, characterized in that: The control structure comprises a second driving rod (35), a third connecting rod (36), an axial rod (37), a push button (40) and a rotating button (41); one end of the second driving rod (35) is rotatably connected to the third connecting rod (36); one end of the third connecting rod (36) is connected to the second pull rod (29); the top of the second driving rod (35) is fixedly connected to a driving connecting rod; the driving connecting rod is fixedly connected to an eccentric position of the push button (40); and the push button (40) is rotatably arranged on the handle assembly.

3. A fiber bronchoscope according to claim 2, characterized in that: The bottom of the shaft rod (37) is fixedly connected to a second driving disk (38), the eccentric portion of the second driving disk (38) is fixedly connected to a first pulling rod (28), and the top of the shaft rod (37) is sleeved with driven teeth (39).

4. A fiber bronchoscope according to claim 3, characterized in that: The driven teeth (39) are meshed with the main driving teeth (42); a rotating rod (4101) is fixedly connected to the center of the main driving teeth (42); one end of the rotating rod (4101) is fixedly connected to a rotating button (41); and the rotating button (41) is rotatably arranged on the handle assembly.

5. The fiber bronchoscope according to claim 1, characterized in that: The handle assembly is electrically connected to a temperature control end (23), a temperature detection end is provided on one side of the surface of the temperature control end (23), and a detection line is provided at the bottom of the temperature detection end.

6. A fiber bronchoscope according to claim 5, characterized in that: The bottom of the temperature control end (23) is electrically connected to a preheating wire, and the preheating wire and the detection wire are both wound around the inner wall of the detection tube sleeve.

7. The fiber bronchoscope according to claim 1, characterized in that: One end of the first driving rod (20) is fixedly connected to a push rod (22), the top of the push rod (22) is fixedly connected to a push block (2201), and the push block (2201) is slidably arranged on the handle assembly.

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