Auxiliary positioning and guiding device for bronchoscopy

Abstract

The invention relates to the technical field of guiding devices, and particularly discloses a bronchoscopy auxiliary positioning guiding device which comprises a connecting pipe, a clamping sleeve is fixedly installed at the lower end of the connecting pipe, and an expansion assembly is arranged at the lower end of the clamping sleeve; the expansion assembly comprises an outer supporting sleeve and an inner supporting sleeve, the inner supporting sleeve is located on the inner side of the outer supporting sleeve, and a gap is formed between the inner supporting sleeve and the outer supporting sleeve; sliding groove rods are fixedly installed on the outer side face of the inner supporting sleeve at equal intervals in an annular array mode, push rods are slidably installed at the left ends in the sliding groove rods, and sliding blocks are slidably installed in the sliding groove rods and located between the push rods and the right ends. Due to the fact that the outer supporting sleeve can be contracted to work, the outer supporting sleeve can work after completely entering the glottis of the middle-aged and elderly people at the moment, the glottis of the middle-aged and elderly people is completely opened, and the situation that only the shallow part of the glottis is opened, but the deep part of the glottis cannot be opened is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of guiding devices, and more particularly to a bronchoscopy-assisted positioning and guiding device. Background Art

[0002] During the process of bronchoscopy, since the bronchoscope is not easy to control, soft, slender, generally, atomization anesthesia of the pharynx and surface anesthesia of the nasal cavity are performed on the patient. In the above situation, when a fiberoptic bronchoscope is inserted for examination, in order to better insert it into the bronchus, generally, silicone oil or liquid paraffin oil is applied to the bronchial wall for lubrication. However, due to the patient's psychological tension, the tongue dropping caused by gravity, the interference of oral secretions and other oral structures, it will cause unclear vision of the fiberoptic bronchoscope and difficulty in breathing for the patient, significantly increasing the doctor's intubation time.

[0003] Currently, doctors are assisted to hold the patient's head to solve the above problems. However, this method does not well maintain the patient's breathing and provide a good field of view for the doctor during the examination, bringing great difficulties to fiberoptic bronchoscopy and wasting intubation time.

[0004] Secondly, the current laryngoscope has too many limitations and is not easy to grasp. Especially for the elderly, it is extremely easy to cause damage to the teeth. In addition, a high level of proficiency is required for the doctor's operation, and a large amount of experience needs to be accumulated.

[0005] For example, in the patent CN116636800A, a bronchoscope entry guiding device includes a retaining outer tube for building a guiding channel between the oral cavity and the laryngeal cavity, and a ring cover is provided at its upper end. This patent can perform an opening operation on the glottis through an expansion structure, but it has limitations. Because during the operation, the conical tube in the structure will limit the operation depth of this structure. Because during the operation, once the glottis of middle-aged and elderly people is smaller than the conical tube 1, the conical tube 1 can only stay outside the glottis. After the expansion operation, the deeper position of the glottis may not be opened. At this time, during the guiding process, the endoscope may not be able to move, which will cause discomfort to the middle-aged and elderly people's bodies.

[0006] Therefore, we specifically propose a bronchoscopy-assisted positioning and guiding device that can fully open the glottis of middle-aged and elderly people. Summary of the Invention

[0007] The purpose of the present invention is to provide a bronchoscopy-assisted positioning and guiding device to solve the problems raised in the above background art.

[0008] To achieve the above object, the present invention provides the following technical solution: a bronchoscopy-assisted positioning and guiding device, including a connecting pipe, a clamping sleeve is fixedly installed at the lower end of the connecting pipe, and an expansion component is arranged at the lower end of the clamping sleeve; The expansion component includes an outer support sleeve and an inner support sleeve. The inner support sleeve is located inside the outer support sleeve, and there is a gap between the inner support sleeve and the outer support sleeve; On the outer side surface of the inner support sleeve, sliding rods are fixedly installed at equal distances in a circular array. A push rod is slidably installed at the left end inside the sliding rod, and a slider is slidably installed between the push rod and the right end inside the sliding rod; Symmetrically structured first folding rods are rotatably installed at the right end of the push rod, the slider, and the outer side of the end of the sliding rod away from the push rod. Second folding rods are rotatably installed at the ends of the first folding rods away from the sliding rod, and third folding rods are rotatably installed at the ends of the second folding rods away from the first folding rods.

[0009] Preferably, a through groove is formed from the outer side surface to the inside of the sliding rod, the length of the through groove is the same as the length of the sliding rod, and the push rod and the slider extend to the outside of the sliding rod.

[0010] By adopting the above technical solution, under the action of the through groove, the push rod can drive the first folding rod to rotate, avoiding the inability of subsequent structures to rotate.

[0011] Preferably, the outer ends of the first folding rods adjacent to the left and right sides of the sliding rod are rotatably connected together. Adjacent second folding rods form a V-shaped structure, and adjacent third folding rods form a V-shaped structure, and the openings of the V-shaped structures are offset left and right.

[0012] By adopting the above technical solution, the first folding rod, the second folding rod, and the third folding rod can expand the outer support sleeve for subsequent operations outward to open the glottis.

[0013] Preferably, the ends of the adjacent second folding rod and third folding rod with opposite V-shaped openings are rotatably connected together, and the positions where the second folding rod and the third folding rod are rotatably connected are in an up-and-down offset state.

[0014] By adopting the above technical solution, only under the action of the connection between the second folding rod and the third folding rod can the outer ring push the outer support sleeve to expand outward, so that the diameter can be changed.

[0015] Preferably, a connecting column is fixedly installed on the upper end surface of the connecting pipe. The number of the connecting columns is two. An installation ring is fixedly installed on the upper ends of the two connecting columns. An adjusting threaded rod is rotatably installed from the upper end surface to the lower end surface of the installation ring. The lower end of the adjusting threaded rod is rotatably installed inside the connecting pipe. A first through hole is formed from the upper end surface to the lower end surface of the installation ring. An expansion ring is arranged on the upper end surface of the installation ring.

[0016] By adopting the above technical solution, the adjusting threaded rod can make the slide table for subsequent operations slide.

[0017] Preferably, a slide table is threadedly and rotatably installed on the circumferential surface of the adjusting threaded rod. A connecting rod is rotatably installed inside the slide table. The lower end of the connecting rod is rotatably installed with a connecting block. A limiting ring is fixedly installed inside the connecting block.

[0018] By adopting the above technical solution, the connecting rod can rotate when the slide table slides, and the limiting ring can move in position during rotation.

[0019] Preferably, an inclined limiting plate is fixedly installed on the upper end surface of the limiting ring. An outer sleeve is fixedly installed on the upper outer end surface of the limiting ring. Internal threads are formed on the inner circumferential surface of the outer sleeve. An inner sleeve is rotatably installed inside the outer sleeve. External threads are formed on the outer circumferential surface of the inner sleeve. Trapezoidal platforms matching the limiting plate are fixedly installed on the lower inner circumferential surface of the inner sleeve in a circumferentially and uniformly arrayed manner.

[0020] By adopting the above technical solution, under the action of the internal and external threads, the trapezoidal platform can push the limiting plate to clamp the endoscope for subsequent operations, so as to avoid the endoscope from shaking when it is not moving.

[0021] Preferably, a gooseneck tube is fixedly installed at the lower end of the ferrule. A connecting tube is fixedly installed on the right side of the lower end of the gooseneck tube. The ferrule, the gooseneck tube and the connecting tube are in a through state.

[0022] By adopting the above technical solution, the gooseneck tube can adjust the orientation of the connecting tube, thereby facilitating the operation of medical staff.

[0023] Preferably, a second through hole is formed from the upper end surface to the lower end surface of the connecting pipe. A third through hole is formed from the upper end surface to the lower end surface of the ferrule. A fourth through hole is formed from the upper end to the lower end of the gooseneck tube. A fifth through hole is formed from the left end to the right end of the connecting tube.

[0024] By adopting the above technical solution, the arc-shaped resilient rod can slide under the action of multiple through holes, so as to push the push rod to slide.

[0025] Preferably, the first through hole, the second through hole, the third through hole, the fourth through hole, and the fifth through hole are in a through state. An arc-shaped resilient rod is slidably installed inside the first through hole, the second through hole, the third through hole, the fourth through hole, and the fifth through hole. The right end of the lower part of the arc-shaped resilient rod is fixedly connected to the left end of the push rod, and the circumferential surface of the arc-shaped resilient rod is attached to the outer side surface of the expansion ring.

[0026] By adopting the above technical solution, under the action of the arc-shaped resilient rod, the push rod is pushed to slide, and the push rod can make the first folding rod rotate, so as to expand the outer support sleeve.

[0027] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. In the present invention, under the action of the arc-shaped resilient rod, the push rod can be pushed to slide. During the sliding process of the push rod, the first folding rod will be pushed to rotate. The first folding rod will drive the second folding rod, and the second folding rod will drive the third folding rod to rotate synchronously. During the rotation process, due to the need to expand outwards, the outer support sleeve will expand outwards, making its diameter larger, so as to open the glottis of middle-aged and elderly people, thus avoiding the situation that the endoscope cannot move during the endoscope operation. Moreover, during the operation process, since the outer support sleeve can perform a contraction operation, the outer support sleeve can perform the operation after completely entering the glottis of middle-aged and elderly people, so as to completely open the glottis of middle-aged and elderly people, and there will be no situation where only the shallow part of the glottis is opened while the deep part of the glottis cannot be opened, improving the operation effect and operation efficiency.

[0028] 2. In the present invention, under the action of the push rod, it can operate on different populations according to specific situations, rather than being limited to middle-aged and elderly people only. Because during the use process, the diameter of the outer support sleeve can be changed, so that a smaller diameter can be suitable for younger populations, thus improving the diversity of the device.

[0029] 3. In the present invention, with the cooperation of multiple structures such as the adjusting threaded rod, the limiting ring, and the limiting ring, the endoscope can be fixed, avoiding the situation of hand soreness when medical staff hold it for a long time during the viewing process, which may cause the endoscope to shake. It can allow the medical staff to relax and adjust their arms during the process of hand soreness, and then perform the operation again; in addition, with the cooperation of the above structures, the position of the endoscope can be slightly adjusted to make the endoscope meet the operation requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for the description of the specific embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0031] Figure 1 It is the external view structure diagram of the main body of the present invention; Figure 2 It is the combined schematic diagram of the connecting pipe and the mounting ring of the present invention; Figure 3 It is the internal structure diagram of the connecting pipe and the mounting ring of the present invention; Figure 4 It is the internal structure diagram of the outer sleeve and the inner sleeve of the present invention; Figure 5 It is the schematic diagram of the arc-shaped resilient rod of the present invention; Figure 6 It is the schematic diagram of the limiting ring and the limiting plate of the present invention; Figure 7 It is the connection schematic diagram of the ferrule and the gooseneck tube of the present invention; Figure 8 It is the sectional view of the communication pipe of the present invention; Figure 9 It is the schematic diagram of the inner support sleeve and the outer support sleeve in the expansion assembly of the present invention; Figure 10 It is the schematic diagram of the structure of the chute rod and the push rod in the expansion assembly of the present invention.

[0032] Explanation of reference numerals: 1. Connecting pipe; 101. Connecting column; 102. Mounting ring; 103. Adjusting threaded rod; 104. Slide table; 105. Connecting rod; 106. Connecting block; 107. Limiting ring; 108. Limiting plate; 109. Outer sleeve; 110. Internal thread; 111. Inner sleeve; 112. External thread; 113. Trapezoidal table; 114. First through hole; 115. Second through hole; 2. Expansion ring; 3. Ferrule; 302. Third through hole; 4. Gooseneck tube; 401. Fourth through hole; 5. Communication pipe; 501. Fifth through hole; 6. Expansion assembly; 601. Inner support sleeve; 602. Chute rod; 606. Through groove; 607. Push rod; 608. Slide block; 609. First folding rod; 610. Second folding rod; 611. Third folding rod; 613. Outer support sleeve; 7. Arc-shaped resilient rod. Specific embodiments

[0033] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0034] Please refer to Figures 1 to 10 , the present invention provides a technical solution: A bronchoscope examination auxiliary positioning and guiding device includes a connecting pipe 1. At the upper end of the connecting pipe 1, two connecting columns 101 are fixedly installed, and at the top of the two connecting columns 101, an installation ring 102 is fixedly installed together. Among them, the installation ring 102 is in a through state from the top to the center position at the lower end, and the same is true for the connecting pipe 1, as Figure 3 shown.

[0035] Three adjusting threaded rods 103 are rotatably installed on the upper end face to the lower end of the installation ring 102 in a circumferentially uniform array. The lower end of the adjusting threaded rod 103 is rotatably installed inside the connecting pipe 1 (a groove is provided on the inner circumferential surface of the connecting pipe 1, and the top of the groove is in an open state, so that the lower end of the adjusting threaded rod 103 can be rotatably installed inside the connecting pipe 1), as Figure 3 shown; on the circumferential surfaces of the three adjusting threaded rods 103, sliding platforms 104 are threadedly and rotatably installed. The inner side of the sliding platform 104 has a "T" - shaped structure, and both sides to the inside are in a U - shaped structure. Inside the U - shaped structure, a connecting rod 105 is rotatably installed, as Figure 6 shown; The inner sides of the lower ends of two adjacent connecting rods 105 are rotatably installed with a connecting block 106 (it should be noted that a cylinder is jointly rotatably installed at the lower ends of two adjacent connecting rods 105, and one end of the outer side of the connecting block 106 is rotatably installed on the circumferential surface of the cylinder), as Figure 6 shown; the inner sides of the connecting blocks 106 are jointly fixedly installed with a limiting ring 107. The limiting ring 107 is in a through state from the upper end face to the center position at the lower end face. Secondly, a plurality of inward - inclined limiting plates 108 are fixedly installed on the upper edge position of the limiting ring 107 in a circumferentially uniform array, as Figure 6 shown.

[0036] An outer sleeve 109 is fixedly installed on the upper end of the outer side of the limiting ring 107. An internal thread 110 is provided on the inner circumferential surface of the outer sleeve 109, and an inner sleeve 111 is rotatably installed inside the outer sleeve 109. An external thread 112 is provided on the outer circumferential surface of the inner sleeve 111. With the cooperation of the internal thread 110 and the external thread 112, the height of the inner sleeve 111 can be adjusted, as Figure 4As shown; and a trapezoidal platform 113 matching the limiting plate 108 is fixedly installed on the inner lower circumferential surface of the inner sleeve 111, and the lower end length of the trapezoidal platform 113 is less than the upper end length, as Figure 4 shown.

[0037] Therefore, during use, rotating one of the adjusting threaded rods 103 can make the corresponding sliding table 104 slide up and down. When sliding, it will drive the connecting rod 105 to move synchronously, and the connecting rod 105 will drive the connecting block 106, and the connecting block 106 will move the limiting ring 107 closer to the position of the rotating adjusting threaded rod 103. The three rotating together can make the limiting ring 107 move up and down. Secondly, when rotating the inner sleeve 111, it can drive the trapezoidal platform 113 to move downward, and during the movement, the trapezoidal platform 113 can apply an inward force to the outer side of the limiting plate 108, so that the upper end of the limiting plate 108 gradually approaches until the endoscope is fixed.

[0038] A ferrule 3 is fixedly installed at the lower end of the connecting pipe 1, and a tooth groove is provided on the outer side surface of the ferrule 3. Under the action of the tooth groove, it can contact the patient's teeth, so that the patient's teeth may collide, as Figure 1 shown.

[0039] A gooseneck tube 4 is fixedly installed at the lower end of the ferrule 3, and a connecting pipe 5 is fixedly installed at the lower end of the gooseneck tube 4. Among them, the gooseneck tube 4 can rotate at different angles, so as to meet the needs of patients. In this way, it can drive the connecting pipe 5 to rotate synchronously under the action of the gooseneck tube 4, so that the gooseneck tube 4 is suitable for the throats of different patients and is not limited to a single angle.

[0040] The right end of the connecting pipe 5 is fixedly installed with an inner support sleeve 601 and an outer support sleeve 613 in the expansion assembly 6. Among them, the inner support sleeve 601 is located inside the outer support sleeve 613, and there is a gap between the two, as Figure 9 shown; and four chute rods 602 are evenly and fixedly installed in a circular array on the outer side surface of the inner support sleeve 601. The left end of the middle chute rod 602 is through to the inside, and the right end is closed. Secondly, a through groove 606 of the same length as the chute rod 602 is provided on the circumferential surface of the chute rod 602. Among them, the opening of the through groove 606 faces outward, that is, close to the inner wall of the outer support sleeve 613.

[0041] A push rod 607 is slidably installed at the left end inside the chute rod 602, and two sliders 608 are slidably installed between the right end of the push rod 607 and the right end inside the chute rod 602. Among them, the structures of the push rod 607 and the sliders 608 are the same as the internal structure of the chute rod 602, but the positions of the push rod 607 and the sliders 608 corresponding to the through groove 606 protrude outward and are located outside the chute rod 602.

[0042] As shown Figure 10 In the figure, first folding rods 609 are rotatably installed at the upper end of the push rod 607 and outside the slider 608 on the outside of the chute rod 602. Among them, there are six first folding rods 609 on the left and right (two first folding rods 609 are rotatably installed on two sliders 608, and the two first folding rods 609 are rotationally connected in an upper and lower offset manner to facilitate subsequent rotation).

[0043] As shown Figure 10 In the figure, for the first folding rods 609 at the upper end of the chute rod 602 and the upper end of the push rod 607, the ends far from the chute rod 602 are rotatably combined with adjacent first folding rods 609, so that adjacent two first folding rods 609 form a "V" - shaped structure. And among the six first folding rods 609, there are three with the "V" - shaped opening on the left side and two on the right side.

[0044] Then, two second folding rods 610 are rotatably installed at each of the three rotation - connection points at the right end of the first folding rod 609. Therefore, the number of second folding rods 610 is also six. As shown Figure 10 In the figure; the adjacent two at the right end of the second folding rod 610 are also rotationally combined, so that adjacent two second folding rods 610 also form a "V" - shaped structure, but with three openings on the right side and two on the left side when opening.

[0045] Secondly, six third folding rods 611 are rotatably installed at the right ends of the six second folding rods 610 (because there are three openings at the right end of the second folding rod 610, so there are four rotation - connection points). The adjacent two third folding rods 611 are also rotationally connected, but with three openings on the left side and two on the right side when opening. And the three rotation - connection points at the right end of the third folding rod 611 are rotationally connected to the three rotation - connection points of the adjacent first folding rod 609. As shown Figure 10 In the figure; among them, Figure 10 is a plane display diagram, and the specific structure is an annular cylindrical structure, so as to be able to perform an outward expansion operation on the outer support sleeve 613.

[0046] During the operation, the push rod 607 slides inside the chute rod 602. During the sliding process, it pushes the first folding rod 609 to rotate, and the first folding rod 609 pushes the second folding rod 610 to rotate, and the second folding rod 610 pushes the third folding rod 611 to rotate. In this way, the first folding rod 609, the second folding rod 610, and the third folding rod 611 can change from their original relatively vertical state to an inclined state. During the rotation process, since the distance between two adjacent chute rods 602 increases, it will push the outer support sleeve 613 to expand outward, thereby changing the outer diameters of the outer support sleeve 613 and the inner support sleeve 601. As a result, after the diameter of the outer support sleeve 613 becomes larger, it can expand the glottis of middle-aged and elderly people, preventing the glottis from squeezing the endoscope and causing the situation where the endoscope cannot move.

[0047] A first through hole 114, a second through hole 115, a third through hole 302, a fourth through hole 401, and a fifth through hole 501 are provided from one end to the other end of the mounting ring 102, the connecting pipe 1, the ferrule 3, the gooseneck tube 4, and the connecting pipe 5, as Figures 1 to 8 shown. An arc-shaped resilient rod 7 is slidably installed inside the first through hole 114, the second through hole 115, the third through hole 302, the fourth through hole 401, and the fifth through hole 501. Among them, the right end of the arc-shaped resilient rod 7 is fixedly connected to the left end of the push rod 607.

[0048] Therefore, during use, when the arc-shaped resilient rod 7 slides downward, it can push the push rod 607 to slide inside the chute rod 602, and then perform the above operation process. An expansion ring 2 is fitted and installed on the upper end of the mounting ring 102. Because after the arc-shaped resilient rod 7 operates, the position of the arc-shaped resilient rod 7 needs to be fixed. Therefore, using the outward expansion force of the expansion ring 2, an outward thrust can be applied to the four arc-shaped resilient rods 7, so that the arc-shaped resilient rod 7 can be closely attached to the inside of the first through hole 114, thereby keeping the arc-shaped resilient rod 7 in a fixed state. During use, a part of the arc-shaped resilient rod 7 located above the mounting ring 102 is made of a rigid material. Therefore, when the expansion ring 2 operates, the upper end of the arc-shaped resilient rod 7 will not bend, resulting in the arc-shaped resilient rod 7 not being fixed. Because during use, the downward movement length of the arc-shaped resilient rod 7 is limited, and the bendable part of the resilience of the arc-shaped resilient rod 7 only needs to be from the top to the bottom of the connecting pipe 1 to complete the operation requirements. Because during the operation, the non-bending part with rigidity only needs to move to the middle or near the bottom of the ferrule 3.

[0049] Working principle: First, medical staff adjust the angle of the gooseneck tube 4. The gooseneck tube 4 will drive the connecting tube 5, and the connecting tube 5 will drive the expansion component 6. When the expansion component 6 is not working, the outer diameter of its outer support sleeve 613 is the same as that of the connecting tube 5.

[0050] After movement, since the sliding groove rod 602 will expand outwards, but since the arc-shaped resilient rod 7 can perform bending operations at this time, it will not affect the expansion operation of the outer support sleeve 613.

[0051] During operation, push the arc-shaped resilient rod 7. The arc-shaped resilient rod 7 will push the push rod 607 to slide inside the sliding groove rod 602. The push rod 607 will drive the first folding rod 609 to rotate, and then the first folding rod 609 will drive the second folding rod 610 which is rotatably connected to rotate. The second folding rod 610 drives the third folding rod 611 to rotate, so as to be able to drive the subsequent first folding rod 609, second folding rod 610 and third folding rod 611 to gradually rotate. At this time, the slider 608 will also slide under the rotation of the first folding rod 609.

[0052] At this time, under the action of the first folding rod 609, second folding rod 610 and third folding rod 611, two adjacent sliding groove rods 602 will gradually move away, thereby increasing the diameter of the inner support sleeve 601, and the first folding rod 609, second folding rod 610 and third folding rod 611 are in a state of horizontal rotation and inclination. After the distance increases, it will drive the outer support sleeve 613 to expand outwards synchronously, thus completing the expansion operation of the glottis.

[0053] After the operation is completed, use the expansion ring 2 to fix the position of the arc-shaped resilient rod 7.

[0054] At this time, when using the endoscope for operation, rotate the corresponding adjusting screw rod 103, and the sliding table 104 can be driven to rotate with the connecting rod 105. The connecting rod 105 will drive the connecting block 106, and the connecting block 106 will drive the limiting ring 107 to move, and the limiting ring 107 will adjust the position of the endoscope.

[0055] Rotate the inner sleeve 111, and the inner sleeve 111 will drive the trapezoidal table 113 to move downward, so as to be able to fix the pipeline for the endoscope operation by the limiting plate 108.

[0056] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A bronchoscopic auxiliary positioning and guiding device, comprising a connecting tube (1), characterized in that: A ferrule (3) is fixedly mounted on the lower end of the connecting pipe (1), and an expansion component (6) is arranged on the lower end of the ferrule (3); The expansion assembly (6) comprises an outer support sleeve (613) and an inner support sleeve (601), wherein the inner support sleeve (601) is located inside the outer support sleeve (613), and a gap is provided between the inner support sleeve (601) and the outer support sleeve (613); Slide rods (602) are fixedly installed in an annular array at equal distances on the outer surface of the inner support sleeve (601), a push rod (607) is slidably installed at the left end of the slide rod (602), and a slider (608) is slidably installed between the push rod (607) and the right end of the slide rod (602); A first folding rod (609) of a symmetrical structure is rotatably mounted on the right end of the push rod (607), the sliding block (608) and the outer side of one end of the sliding groove rod (602) away from the push rod (607); a second folding rod (610) is rotatably mounted on one end of the first folding rod (609) away from the sliding groove rod (602); and a third folding rod (611) is rotatably mounted on one end of the second folding rod (610) away from the first folding rod (609).

2. The bronchoscopic auxiliary positioning and guiding device according to claim 1, characterized in that: A through groove (606) is provided from the outer side surface to the inner side of the slide groove rod (602); the length of the through groove (606) is consistent with the length of the slide groove rod (602); and the push rod (607) and the sliding block (608) extend to the outer side of the slide groove rod (602).

3. The bronchoscopic auxiliary positioning and guiding device according to claim 1, characterized in that: One end of the outer side of the adjacent first folding rods (609) on the left and right sides of the slide rod (602) is rotatably connected together, two adjacent second folding rods (610) form a V-shaped structure, and two adjacent third folding rods (611) form a V-shaped structure, and the opening of the V-shaped structure is staggered left and right.

4. The bronchoscopic auxiliary positioning and guiding device according to claim 3, characterized in that: The adjacent second folding rods (610) and third folding rods (611) are rotatably connected at opposite ends of the V-shaped openings, and the positions of the rotatably connected second folding rods (610) and third folding rods (611) are in an up-and-down misaligned state.

5. The bronchoscopic auxiliary positioning and guiding device according to claim 4, characterized in that: A connecting column (101) is fixedly mounted on the upper end surface of the connecting tube (1), the number of the connecting columns (101) being two, a mounting ring (102) being fixedly mounted on the upper ends of the two connecting columns (101), an adjusting threaded rod (103) being rotatably mounted from the upper end surface to the lower end of the mounting ring (102), the lower end of the adjusting threaded rod (103) being rotatably mounted inside the connecting tube (1), a first through hole (114) being provided from the upper end surface to the lower end surface of the mounting ring (102), and an expansion ring (2) being provided on the upper end surface of the mounting ring (102).

6. The bronchoscopic auxiliary positioning and guiding device according to claim 5, characterized in that: A slide table (104) is rotatably mounted on the circumferential surface of the adjusting threaded rod (103), a connecting rod (105) is rotatably mounted inside the slide table (104), a connecting block (106) is rotatably mounted on the lower end of the connecting rod (105), and a limiting ring (107) is fixedly mounted on the inner side of the connecting block (106).

7. The bronchoscopic auxiliary positioning and guiding device according to claim 6, characterized in that: A limiting plate (108) in an inclined state is fixedly mounted on the upper end surface of the limiting ring (107); an outer sleeve (109) is fixedly mounted on the outer upper end surface of the limiting ring (107); an inner thread (110) is provided on the inner circumferential surface of the outer sleeve (109); an inner sleeve (111) is rotatably mounted inside the outer sleeve (109); an outer thread (112) is provided on the outer circumferential surface of the inner sleeve (111); and trapezoidal platforms (113) matching the limiting plate (108) are evenly fixedly mounted in an annular array on the inner lower circumferential surface of the inner sleeve (111).

8. The bronchoscopic auxiliary positioning and guiding device according to claim 1, characterized in that: A gooseneck tube (4) is fixedly mounted on the lower end of the ferrule (3), and a connecting tube (5) is fixedly mounted on the right side of the lower end of the gooseneck tube (4); the ferrule (3), the gooseneck tube (4) and the connecting tube (5) are in a connected state.

9. The bronchoscopic auxiliary positioning and guiding device according to claim 8, characterized in that: A second through hole (115) is formed from the upper end surface to the lower end of the connecting tube (1), a third through hole (302) is formed from the upper end surface to the lower end of the ferrule (3), a fourth through hole (401) is formed from the upper end to the lower end of the gooseneck tube (4), and a fifth through hole (501) is formed from the left end to the right end of the connecting tube (5).

10. The bronchoscopic auxiliary positioning and guiding device according to claim 5, characterized in that: The first through hole (114), the second through hole (115), the third through hole (302), the fourth through hole (401) and the fifth through hole (501) are in a through state, and an arc-shaped tough rod (7) is slidably installed inside the first through hole (114), the second through hole (115), the third through hole (302), the fourth through hole (401) and the fifth through hole (501), and the lower right end of the arc-shaped tough rod (7) is fixedly connected to the left end of the push rod (607), and the circumferential surface of the arc-shaped tough rod (7) is in contact with the outer side surface of the expansion ring (2).

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