Oral mucosa detection device based on fusion of fluorescence and guide light

Abstract

The invention relates to the technical field of oral examination appliances, in particular to an oral mucosa detection device based on fluorescence and light guide fusion, which comprises a handheld cylinder, a detection assembly is arranged at the end part of the handheld cylinder, and the detection assembly comprises a camera with a connecting wire and a light guide piece arranged at the end part of the handheld cylinder; the camera is connected with an external mobile phone end through a connecting wire, one end of the light guide part is bent, and the camera is embedded in the bent end of the light guide part. Through the arrangement of the structure, the supporting frame can be automatically pulled to turn over, then the side rods are turned over towards the two sides, the inner side of the oral cavity is supported, and the oral cavity is more convenient to use. Therefore, when a doctor or a dental hygiene worker conducts oral mucosa detection, no extra assistant is needed for fixing a flaring device or other equipment, operation convenience and working efficiency are improved, the side rods can be opened towards the two sides, the position shot by the camera cannot be hindered, and meanwhile the side rods can be stored after being used.

Description

Technical Field

[0001] The present invention relates to the technical field of oral inspection instruments, and in particular to an oral mucosa detection device based on the fusion of fluorescence and light guide. Background Art

[0002] The oral mucosa detection device based on the fusion of fluorescence and light guide (usually optical fiber) is an advanced medical device that combines fluorescence spectroscopy technology and optical fiber technology to enhance the accuracy and efficiency of oral mucosa examination. This device is usually used for the detection of oral precancerous lesions, oral inflammation, infection and early cancer.

[0003] Fluorescence technology uses a light source of a specific wavelength to excite oral mucosal tissue to make it fluoresce. Different tissues emit different fluorescence spectra due to their different chemical composition and structure. Fiber optic technology uses optical fibers to transmit the excitation light to the inside of the mouth, and the collected fluorescence signal is transmitted to the detector. The detector analyzes the collected fluorescence signal and converts it into digital fluorescence spectrum data. The fluorescence spectrum data is converted into an image to facilitate doctors to intuitively identify abnormal areas. Compared with traditional oral examination methods, fluorescence-based detection can provide more information about mucosal biochemistry and structure.

[0004] During use, the existing oral mucosa detection device lacks an oral support structure. Therefore, during the oral examination, the doctor needs to hold the mouth dilator in one hand to support the mouth and hold the detection device in the other hand for detection. The doctor may cause hand or wrist fatigue if he maintains this posture for a long time, affecting the efficiency and accuracy of the examination. The handheld mouth dilator may block the doctor's line of sight and affect the observation of the internal situation of the oral cavity. At the same time, the doctor needs to use both hands to operate and cannot operate other equipment during the oral mucosa examination, which greatly reduces the convenience of the device.

[0005] Therefore, an oral mucosa detection device based on the fusion of fluorescence and light guidance is proposed to solve the above problems. Summary of the invention

[0006] The purpose of the present invention is to solve the shortcomings of the background technology and to propose an oral mucosa detection device based on the fusion of fluorescence and light guidance.

[0007] To achieve the above objectives, the technical solution adopted by the present invention is: an oral mucosa detection device based on the fusion of fluorescence and light guide, comprising a hand-held tube, wherein a detection component is provided at the end of the hand-held tube; The detection component includes a camera with a connecting wire and a light guide arranged at the end of the handheld tube. The camera is connected to the external mobile phone end through the connecting wire. One end of the light guide is bent and the camera is embedded in the bent end of the light guide.

[0008] In the above technical solution, further, the light guide member includes a second light guide rod, and one end of the second light guide rod is detachably connected to the end of the hand-held tube.

[0009] In the above technical scheme, further, the light guide member includes a light guide rod, one end of which is fixedly connected to the end of a hand-held tube, an inward groove is provided at the top of the light guide rod, a U-shaped plate is slidably connected to the inner side of the groove, a support frame is rotatably connected to the inner side of the U-shaped plate, an upper round rod is rotatably connected to the side wall of the U-shaped plate, and the side wall of the upper round rod passes through the inner side of the U-shaped plate and is fixedly connected to the side wall of the support frame, a pair of side rods are rotatably connected to the inner side of the support frame, side grooves are provided at the ends of the side rods, lower round rods are fixedly connected to the inner sides of the side grooves, an adjustment groove is provided at the top of the hand-held tube, an L-shaped plate is slidably connected to the inner side of the adjustment groove, an upper pull rope and a lower pull rope are respectively wound on the outer walls of the upper and lower round rods, and a driving mechanism for first pulling the upper pull rope and then pulling the lower pull rope is provided on the L-shaped plate.

[0010] In the above technical scheme, further, the driving mechanism includes a small telescopic cylinder, one end of the upper pull rope is fixedly connected to the outer wall of the upper round rod, one end of the lower pull rope is fixedly connected to the outer wall of the lower round rod, the small telescopic cylinder is fixedly connected to the top of the L-shaped plate, the output end of the small telescopic cylinder is fixedly connected to the L-shaped rod, the top of the L-shaped plate is respectively slidably connected to the upper plate and the lower plate, and the upper plate and the lower plate are staggered, the upper pull rope is fixedly connected to the side wall of the upper plate, the lower pull rope is fixedly connected to the side wall of the lower plate, the side wall of the upper plate passes through and is slidably connected to a driving rod, an upper spring is fixedly connected between the outer wall of the driving rod and the side wall of the upper plate, and an extrusion plate for extruding the driving rod is fixedly connected to the top of the L-shaped plate, one end of the driving rod is tightly attached to the side wall of the extrusion plate, and the other end of the driving rod extends out of the side wall of the upper plate.

[0011] In the above technical solution, further, the top end of the L-shaped plate is fixedly connected to a rear plate relative to the position beside the upper plate and the lower plate, a first spring is fixedly connected between one of the rear plates and the upper plate, and a pair of second springs is fixedly connected between the other rear plate and the lower plate, the L-shaped rod is arranged on the side wall of the upper plate and can be pushed to the position of the lower plate, and the two pull-down ropes are arranged on the lower round rod with opposite winding directions.

[0012] In the above technical solution, further, an upper groove is provided at the top of the extrusion plate, a right-angle block with an inclined surface is provided in the upper groove, the end of the driving rod is set as a smooth arc surface, the bottom end of the upper groove is opened to the middle position of the side end of the driving rod, and a connecting plate is fixedly connected between the top of the right-angle block and the top of the L-shaped rod.

[0013] In the above technical solution, further, a return spring is fixedly connected between the side rods, an upper limit block for limiting the side rods from flipping toward the middle is fixedly connected to the middle portion of the inner side of the support frame, and lower limit blocks for limiting the flipping angle of the side rods to both sides are fixedly connected to both ends of the inner side of the support frame.

[0014] In the above technical solution, further, the side wall of the adjustment groove is provided with a middle groove connected to the groove, the side wall of the L-shaped plate is fixedly connected to the side wall of the U-shaped plate, a return spring is fixedly connected between the inner side of the adjustment groove and the side wall of the L-shaped plate, an arc plate is fixedly connected to the top inner side of the L-shaped plate, and an arc groove for sliding of the arc plate is provided at the top inner side of the adjustment groove.

[0015] In the above technical solution, further, a through groove is provided on the side wall of the U-shaped plate, and a positioning block for limiting the upward flipping angle of the support frame is fixedly connected to the top inner side of the U-shaped plate.

[0016] In the above technical solution, further, the outer walls of the side rods are covered with protective sleeves, the side ends of the support frame are covered with elastic sleeves, and the protective sleeves are fixedly connected to the side walls of the elastic sleeves. The protective sleeves are made of elastic rubber material and have anti-slip grooves.

[0017] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention can automatically pull the support frame to flip up and then flip the side bars to both sides through the arrangement of structures such as the support frame, the side bars and the driving mechanism, so as to support the inside of the oral cavity, thereby facilitating doctors or dental hygienists to perform oral mucosal testing without the need for additional assistants to fix the mouth expander or other equipment, thereby improving the convenience of operation and work efficiency. The side bars will open to both sides without obstructing the position captured by the camera, and can be stored after use.

[0018] 2. The present invention, through the arrangement of structures such as an L-shaped plate, a return spring and a U-shaped plate, can push the L-shaped plate to move after the support frame and the side rods are opened, thereby driving the support frame and the side rods to slide, making it easy to flexibly adjust the support position according to the detection position, thereby further improving the convenience of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the overall appearance structure of the detection device of the present invention when folded; Figure 2 This is a schematic diagram of the overall appearance structure of the detection device of the present invention when it is opened; Figure 3 It is a schematic diagram of the overall appearance fracture structure of the L-shaped plate and the support frame of the present invention; Figure 4 The appended Figure 3A schematic diagram of the partially enlarged structure at center A; Figure 5 It is a schematic diagram of the front full-section three-dimensional structure of the hand-held tube of the present invention; Figure 6 The appended Figure 5 A schematic diagram of the partially enlarged structure at B in the middle; Figure 7 It is a schematic diagram of the overall appearance structure of the L-shaped rod, extruded plate, upper plate and lower plate of the present invention; Figure 8 It is a schematic diagram of a three-dimensional structure in which the elastic sleeve and the side rod are separated according to the present invention; Fig. 9 It is a schematic diagram of a three-dimensional structure in which the support frame and the side rods are separated according to the present invention; Fig.10 It is a schematic diagram of the overall appearance structure of the side rod of the present invention; Fig.11 It is a schematic diagram of the overall appearance structure of the hand-held tube, the second light guide rod and the camera of the present invention; Fig.12 For the present invention Fig.11 Schematic diagram of the connection between the middle wire and the camera.

[0020] In the figure: 1. Hand-held tube; 2. Light guide rod 1; 3. Camera; 4. U-shaped plate; 5. Support frame; 6. Upper round rod; 7. Side rod; 8. Lower round rod; 9. Adjustment slot; 10. L-shaped plate; 11. Upper pull rope; 12. Lower pull rope; 13. Small telescopic cylinder; 14. L-shaped rod; 15. Upper plate; 16. Lower plate; 17. Driving rod; 18. Upper spring; 19. Extrusion plate; 20. Back plate; 21. First spring; 22. Second spring; 23. Right-angle block; 24. Connecting plate; 25. Return spring; 26. Upper limit block; 27. Lower limit block; 28. Reset spring; 29. ​​Arc plate; 30. Arc slot; 31. Through slot; 32. Positioning block; 33. Protective cover; 34. Elastic cover; 35. Anti-skid slot; 36. Light guide rod 2; 37. Wire. DETAILED DESCRIPTION

[0021] In order to more clearly understand the above-mentioned objects, features and advantages of the present invention, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0022] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0023] Embodiment 1

[0024] like Figure 1-Figure 10The oral mucosa detection device based on the fusion of fluorescence and light guidance shown includes a hand-held tube 1, and a detection component is arranged at the end of the hand-held tube 1; The detection component includes a camera 3 with a connecting wire 37 and a light guide member arranged at the end of the handheld tube 1. The camera 3 is connected to the external mobile phone end through the connecting wire 37. One end of the light guide member is bent and the camera 3 is embedded in the bent end of the light guide member. The light guide member includes a light guide rod 2. One end of the light guide rod 2 is fixedly connected to the end of the handheld tube 1. The method of using the detection device is mainly to insert the light guide rod 2 into the patient's mouth, adjust the position to cover the target detection area, then turn on the fluorescent light source, irradiate the oral mucosa and record the fluorescent spectrum data, and take a real-time image of the oral mucosa through the camera 3. Then, the fluorescent spectrum data and the real-time image are transmitted to the data processing unit for analysis, and a diagnosis report is generated to assist doctors in diagnosing diseases.

[0025] An indented groove is provided at the top of the light guide rod 2, a U-shaped plate 4 is slidably connected to the inner side of the groove, a support frame 5 is rotatably connected to the inner side of the U-shaped plate 4, an upper round rod 6 is rotatably connected to the side wall of the U-shaped plate 4, and the side wall of the upper round rod 6 passes through the inner side of the U-shaped plate 4 and is fixedly connected to the side wall of the support frame 5, a pair of side rods 7 are rotatably connected to the inner side of the support frame 5, a side groove is provided at the end of the side rod 7, and a lower round rod 8 is fixedly connected to the inner side of the side groove, an adjustment groove 9 is provided at the top of the hand-held tube 1, an L-shaped plate 10 is slidably connected to the inner side of the adjustment groove 9, an upper pull rope 11 and a lower pull rope 12 are respectively wound on the outer walls of the upper round rod 6 and the lower round rod 8, and a driving mechanism for first pulling the upper pull rope 11 and then pulling the lower pull rope 12 is provided on the L-shaped plate 10; The driving mechanism includes a small telescopic cylinder 13, one end of an upper pull rope 11 is fixedly connected to the outer wall of the upper round rod 6, one end of a lower pull rope 12 is fixedly connected to the outer wall of the lower round rod 8, the small telescopic cylinder 13 is fixedly connected to the top of the L-shaped plate 10, the output end of the small telescopic cylinder 13 is fixedly connected to the L-shaped rod 14, the top of the L-shaped plate 10 is respectively slidably connected to the upper plate 15 and the lower plate 16, and the upper plate 15 and the lower plate 16 are staggered, the upper pull rope 11 is fixedly connected to the side wall of the upper plate 15, the lower pull rope 12 is fixedly connected to the side wall of the lower plate 16, the side wall of the upper plate 15 is slidably connected with a driving rod 17, an upper spring 18 is fixedly connected between the outer wall of the driving rod 17 and the side wall of the upper plate 15, and an extrusion plate 19 for extruding the driving rod 17 is fixedly connected to the top of the L-shaped plate 10, one end of the driving rod 17 is tightly attached to the side wall of the extrusion plate 19, and the other end of the driving rod 17 extends out of the side wall of the upper plate 15; The top of the L-shaped plate 10 is fixedly connected with a rear plate 20 at a position beside the upper plate 15 and the lower plate 16, a first spring 21 is fixedly connected between one of the rear plates 20 and the upper plate 15, and a pair of second springs 22 are fixedly connected between the other rear plate 20 and the lower plate 16. The L-shaped rod 14 is arranged on the side wall of the upper plate 15 and can be pushed to the position of the lower plate 16. The winding directions of the two lower pull ropes 12 on the lower round rod 8 are opposite, and a return spring 25 is fixedly connected between the side rods 7. The setting of the return spring 25 facilitates the quick pulling of the released side rod 7 for reset. During the use of the oral mucosa detector, when it is necessary to detect the mucosa on both sides of the patient's oral cavity and to prop up the oral cavity, the doctor can control the small telescopic cylinder 13 to start and drive the L-shaped rod 14 to move. First, the L-shaped rod 14 will move to the side of the upper plate 15 to drive the protruding driving rod 17 to move, and drive the upper plate 15 to slide on the L-shaped plate 10, and gradually compress the first spring 21, thereby driving the upper pull rope 11 to move, and pulling out the part of the upper pull rope 11 wrapped around the upper round rod 6. Since the other end of the upper pull rope 11 is fixed on the outer wall of the upper round rod 6, when the upper pull rope 11 is pulled out from the upper round rod 6 When the upper part is pulled out, the upper round rod 6 is driven to rotate, and then the support frame 5 is driven to flip upward inside the U-shaped plate 4, until the support frame 5 is flipped to the specified position, and the driving rod 17 is also moved out from the side of the squeezing plate 19, thereby releasing the squeezing of the driving rod 17, and then the driving rod 17 is pushed to move under the elastic force of the upper spring 18, so that the driving rod 17 is inserted into the side wall of the squeezing plate 19, and at the same time, the protruding part of the driving rod 17 close to the side of the L-shaped rod 14 will slide into the upper plate 15, thereby losing the thrust of the L-shaped rod 14, but under the effect of the driving rod 17 inserted into the side wall of the squeezing plate 19, the upper plate 15 will not be reset; Then, through the continued movement of the small telescopic cylinder 13, the L-shaped rod 14 will be driven to move to the side of the lower plate 16, thereby pushing the lower plate 16 to move, and gradually compressing the second spring 22, while pulling the lower pull rope 12 to move. It should be noted here that when the support frame 5 is in a horizontal state, the lower pull rope 12 is in a relaxed state. However, when the support frame 5 is flipped, the side rod 7 will be driven to flip upward, thereby tightening the lower pull rope 12, and then the part of the lower pull rope 12 wrapped around the lower round rod 8 will be pulled out. According to the same principle, the other end of the lower pull rope 12 is fixed on the outer wall of the lower round rod 8, so it will drive the side rod 7 to rotate around the hinge, so that the side rod 7 is flipped to both sides, and gradually stretch the return spring 25 until the side rod 7 is completely opened, and the small telescopic cylinder 13 can be controlled to stop running. Finally, the side rod 7 is supported on the inside of the patient's mouth, and the oral mucosa can be detected by the camera 3 and the fluorescent light source. When the side rod 7 is opened, it is opened to both sides, so it will not hinder the position captured by the camera 3.

[0026] In order to be able to retract the side rod 7 and the support frame 5, an upper groove is provided at the top of the extrusion plate 19, and a right-angle block 23 with an inclined surface is provided in the upper groove. The end of the driving rod 17 is set to a smooth arc surface, which is convenient for the right-angle block 23 to squeeze the driving rod 17 more smoothly to slide. The bottom end of the upper groove is opened to the middle position of the side end of the driving rod 17 to avoid affecting the extrusion effect of the extrusion plate 19 on the driving rod 17. A connecting plate 24 is fixedly connected between the top of the right-angle block 23 and the top of the L-shaped rod 14; When the detection is completed and the support frame 5 and the side rod 7 need to be retracted, the small telescopic cylinder 13 is controlled to move in the opposite direction to drive the L-shaped rod 14 to reset, thereby gradually releasing the thrust on the lower plate 16, and pushing the lower plate 16 to reset under the elastic force of the second spring 22. At the same time, the side rod 7 is pulled to flip to the middle under the elastic force of the return spring 25, and the lower pull rope 12 is reeled back. Then, after the lower plate 16 is reset, the connecting plate 24 and the right-angle block 23 on the L-shaped rod 14 will move to the side of the driving rod 17. At this time, the bottom end of the L-shaped rod 14 has been driven The movable rod 17 will gradually squeeze the driving rod 17 to move through the inclined surface of the right-angle block 23, so that the driving rod 17 slides along the inclined surface of the right-angle block 23, and then squeezes the driving rod 17 out of the squeezing plate 19, and then the upper plate 15 that has lost its restriction will push the upper plate 15 to reset under the elastic force of the first spring 21, and at the same time, the support frame 5 that has lost its restriction will flip downward to reset under its own gravity, and reel in the upper pull rope 11, thereby completing the rapid reset of the device, and the support frame 5 and the side rod 7 are stored for easy storage and carrying.

[0027] In order to improve the stability of the device during operation, an upper limit block 26 for limiting the side rod 7 from turning toward the middle is fixedly connected to the middle of the inner side of the support frame 5, and lower limit blocks 27 for limiting the turning angle of the side rod 7 to both sides are fixedly connected to both ends of the inner side of the support frame 5; The upper limit block 26 and the lower limit block 27 can play a limiting role in the flipping process of the side rod 7, and improve the stability of the oral cavity support process, so as to avoid squeezing the side rod 7 to cause it to flip randomly, which affects the stability of the device during operation; A through groove 31 is provided on the side wall of the U-shaped plate 4. The through groove 31 is provided to avoid obstruction to the normal sliding of the pull-down rope 12. A positioning block 32 is fixedly connected to the top inner side of the U-shaped plate 4 to limit the upward flipping angle of the support frame 5. The positioning block 32 is provided to limit the upward flipping angle of the support frame 5, thereby preventing the support frame 5 from continuing to flip backward during the oral support process and affecting the stability during use.

[0028] In order to improve the flexibility of the device, a middle groove connected to the groove is provided on the side wall of the adjustment groove 9, the side wall of the L-shaped plate 10 is fixedly connected to the side wall of the U-shaped plate 4, a return spring 28 is fixedly connected between the inner side of the adjustment groove 9 and the side wall of the L-shaped plate 10, an arc plate 29 is fixedly connected to the top of the inner side of the L-shaped plate 10, and an arc groove 30 for sliding the arc plate 29 is provided on the top of the inner side of the adjustment groove 9. Through the arrangement of the arc plate 29 and the arc groove 30, the top of the L-shaped plate 10 can be shielded; When the support frame 5 and the side rod 7 are opened and the support position needs to be adjusted, the L-shaped plate 10 can be pushed to move, thereby driving the support frame 5 and the side rod 7 to slide, and gradually stretching the reset spring 28, while driving the arc plate 29 to slide inside the arc groove 30, thereby changing the support position. The support position can be flexibly adjusted according to the detection position, further improving the convenience of the device.

[0029] In order to improve the convenience of the device, the outer walls of the side rods 7 are covered with protective sleeves 33, and the side ends of the support frame 5 are covered with elastic sleeves 34, and the protective sleeves 33 are fixedly connected to the side walls of the elastic sleeves 34. It should be noted that the protective sleeves 33 are made of elastic material and will not hinder the normal flipping of the side rods 7. The protective sleeves 33 are made of elastic rubber material, and anti-skid grooves 35 are provided on the protective sleeves 33. The anti-skid property during the support process can be improved by setting the anti-skid grooves 35. By providing the protective sleeve 33 and the elastic sleeve 34, since the support frame 5 and the side rod 7 are made of a harder material, the side rod 7 and the support frame 5 can be protected to prevent the side rod 7 and the support frame 5 from directly contacting the patient's oral cavity and causing damage to the patient's oral cavity.

[0030] Embodiment 2

[0031] like Fig.11 , 12As shown, the detection component includes a camera 3 with a connecting wire 37 and a light guide member arranged at the end of the hand-held tube 1. The camera 3 is connected to the external mobile phone terminal through the connecting wire 37. One end of the light guide member is bent and the camera 3 is embedded in the bent end of the light guide member. The light guide rod 2 36, the hand-held tube 1 and the camera 3 are all disposable. It should be noted here that the light guide rod 2 36 is 90° and can be bent into 180°. The specific method of use is mainly to insert the light guide rod 2 36 into the patient's mouth, adjust the position to cover the target detection area, and then turn on the fluorescent light source to irradiate the oral mucosa and record the fluorescence spectrum data. The real-time image of the oral mucosa taken by the camera 3 is transmitted to the mobile phone through the wire 37, and the fluorescence is guided to the oral mucosa part that cannot be directly viewed for detection by using the light guide rod 2 36. This is an innovation of the traditional oral autofluorescence spectrum analysis detection method, which solves the detection blind spot problem existing in the prior art. Subsequently, the fluorescence spectrum data and the real-time image are transmitted to the data processing unit for analysis to generate a diagnosis report to assist doctors in diagnosing diseases.

[0032] The basic principles, main features and advantages of the present invention are shown and described above.

[0033] Those skilled in the art should understand that the present invention is not limited to the above-mentioned embodiments. The above-mentioned embodiments and the specification only describe the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. These changes and improvements all fall within the scope of the present invention to be protected.

Claims

1. An oral mucosa detection device based on the fusion of fluorescence and light guidance, comprising a handheld tube (1), characterized in that: The end of the handheld tube (1) is provided with a detection component; The detection component comprises a camera (3) having a connecting wire (37) and a light guide member arranged at the end of the handheld tube (1); the camera (3) is connected to an external mobile phone end via the connecting wire (37); one end of the light guide member is bent and the camera (3) is embedded in the bent end of the light guide member.

2. The oral mucosa detection device based on the fusion of fluorescence and light guide according to claim 1, characterized in that: The light guide member comprises a second light guide rod (36), one end of which is detachably connected to the end of the hand-held tube (1).

3. The oral mucosa detection device based on the fusion of fluorescence and light guide according to claim 1, characterized in that: The light guide member comprises a light guide rod (2), one end of which is fixedly connected to the end of the hand-held tube (1), the top of which is provided with an inwardly sunken groove, the inner side of which is slidably connected to a U-shaped plate (4), the inner side of which is rotatably connected to a support frame (5), the side wall of which is rotatably connected to an upper round rod (6), and the side wall of which passes through the inner side of the U-shaped plate (4) and is fixedly connected to the side wall of the support frame (5), the inner side of which is provided with a U-shaped plate (4). A pair of side rods (7) are rotatably connected, and side grooves are provided at the ends of the side rods (7). A lower round rod (8) is fixedly connected to the inner side of each of the side grooves. An adjustment groove (9) is provided at the top of the hand-held tube (1), and an L-shaped plate (10) is slidably connected to the inner side of the adjustment groove (9). An upper pull rope (11) and a lower pull rope (12) are respectively wound around the outer walls of the upper round rod (6) and the lower round rod (8). A driving mechanism for first pulling the upper pull rope (11) and then pulling the lower pull rope (12) is provided on the L-shaped plate (10).

4. The oral mucosa detection device based on the fusion of fluorescence and light guide according to claim 3, characterized in that: The driving mechanism comprises a small telescopic cylinder (13), one end of the upper pull rope (11) is fixedly connected to the outer wall of the upper round rod (6), one end of the lower pull rope (12) is fixedly connected to the outer wall of the lower round rod (8), the small telescopic cylinder (13) is fixedly connected to the top of the L-shaped plate (10), the output end of the small telescopic cylinder (13) is fixedly connected to the L-shaped rod (14), the top of the L-shaped plate (10) is slidably connected to the upper plate (15) and the lower plate (16), and the upper plate (15) and the lower plate (16) are staggered, the upper pull rope (11) is fixedly connected to the outer wall of the lower round rod (8), the output end of the small telescopic cylinder (13) is fixedly connected to the L-shaped rod (14), the top of the L-shaped plate (10) is respectively slidably connected to the upper plate (15) and the lower plate (16), and the upper pull rope (11) is staggered with the lower plate (16). 1) is fixedly connected to the side wall of the upper plate (15), the lower pull rope (12) is fixedly connected to the side wall of the lower plate (16), a driving rod (17) is slidably connected to the side wall of the upper plate (15), an upper spring (18) is fixedly connected between the outer wall of the driving rod (17) and the side wall of the upper plate (15), and an extrusion plate (19) for extruding the driving rod (17) is fixedly connected to the top of the L-shaped plate (10), one end of the driving rod (17) is tightly attached to the side wall of the extrusion plate (19), and the other end of the driving rod (17) extends out of the side wall of the upper plate (15).

5. The oral mucosa detection device based on the fusion of fluorescence and light guide according to claim 4, characterized in that: The top end of the L-shaped plate (10) is fixedly connected to a rear plate (20) at a position next to the upper plate (15) and the lower plate (16); a first spring (21) is fixedly connected between one of the rear plates (20) and the upper plate (15); and a pair of second springs (22) are fixedly connected between the other rear plate (20) and the lower plate (16); the L-shaped rod (14) is arranged on the side wall of the upper plate (15) and can be pushed to the position of the lower plate (16); and the two lower pull ropes (12) are arranged on the lower round rod (8) in opposite winding directions.

6. The oral mucosa detection device based on the fusion of fluorescence and light guide according to claim 5, characterized in that: The top end of the extrusion plate (19) is provided with an upper groove, a right-angle block (23) with an inclined surface is provided in the upper groove, the end of the driving rod (17) is provided with a smooth arc surface, the bottom end of the upper groove is opened to the middle position of the side end of the driving rod (17), and a connecting plate (24) is fixedly connected between the top end of the right-angle block (23) and the top end of the L-shaped rod (14).

7. The oral mucosa detection device based on the fusion of fluorescence and light guide according to claim 6, characterized in that: A return spring (25) is fixedly connected between the side rods (7), an upper limit block (26) for limiting the side rods (7) from turning toward the middle is fixedly connected to the middle portion of the inner side of the support frame (5), and lower limit blocks (27) for limiting the turning angle of the side rods (7) to the two sides are fixedly connected to both ends of the inner side of the support frame (5).

8. The oral mucosa detection device based on the fusion of fluorescence and light guide according to claim 3, characterized in that: The side wall of the adjustment groove (9) is provided with a middle groove connected to the groove, the side wall of the L-shaped plate (10) is fixedly connected to the side wall of the U-shaped plate (4), a return spring (28) is fixedly connected between the inner side of the adjustment groove (9) and the side wall of the L-shaped plate (10), an arc-shaped plate (29) is fixedly connected to the inner top end of the L-shaped plate (10), and an arc-shaped groove (30) for sliding the arc-shaped plate (29) is provided at the inner top end of the adjustment groove (9).

9. The oral mucosa detection device based on the fusion of fluorescence and light guide according to claim 8, characterized in that: A through slot (31) is formed on the side wall of the U-shaped plate (4), and a positioning block (32) for limiting the upward turning angle of the support frame (5) is fixedly connected to the top inner side of the U-shaped plate (4).

10. The oral mucosa detection device based on the fusion of fluorescence and light guide according to claim 9, characterized in that: The outer walls of the side rods (7) are sleeved with protective sleeves (33), the side ends of the support frame (5) are sleeved with elastic sleeves (34), and the protective sleeves (33) are fixedly connected to the side walls of the elastic sleeves (34). The protective sleeves (33) are made of elastic rubber material, and anti-slip grooves (35) are provided on the protective sleeves (33).

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