A bronchoscopy auxiliary positioning guide device

Abstract

The present application relates to the technical field of medical auxiliary apparatus, in particular to a bronchoscopy auxiliary positioning and guiding device, comprising a fixing plate, the fixing plate is provided with a fixing mechanism for fixing a bronchoscope, a contact mechanism for flexibly adhering to the outer wall of the bronchoscope, a locking mechanism for locking the fixing force of the fixing mechanism and a feedback mechanism for feeding back the fixing force of the fixing mechanism; the fixing mechanism is also used to drive the contact mechanism to operate synchronously to generate an adhering force when fixing the outer wall of the bronchoscope; and when the contact mechanism applies the adhering force to the outer wall of the bronchoscope, the feedback mechanism outputs the fixing force of the fixing mechanism for fixing the bronchoscope. The present application is used for reducing the shaking and deviation of the mirror body during operation, improving the operation stability and patient comfort during examination.

Description

Technical Field

[0001] This invention relates to the field of medical auxiliary device technology, specifically to a bronchoscopy auxiliary positioning and guidance device. Background Technology

[0002] Bronchoscopy is a crucial tool for diagnosing and treating respiratory diseases. During the procedure, doctors insert a long, flexible bronchoscope through the nose or mouth into the patient's lower respiratory tract to directly observe tracheal and bronchial lesions and perform procedures such as biopsy sampling, sputum suction, and local drug administration. With the development of interventional pulmonology, bronchoscopy plays an increasingly important role in the diagnosis and treatment of respiratory diseases. However, during bronchoscopy, the operator must hold the endoscope steadily for extended periods while simultaneously focusing on the display screen for precise manipulation. Prolonged holding can easily lead to hand fatigue and tremors, affecting the accuracy and safety of the examination. To address this issue, various bronchoscopic positioning and fixation devices have been developed.

[0003] However, existing bronchoscopic positioning devices also have some technical drawbacks. Specifically, traditional fixation methods often use rigid clamps (such as ordinary medical clips or simple buckles) to directly hold the endoscope. These devices lack a buffer mechanism, making it difficult to precisely control the clamping force. Excessive clamping force can easily deform the flexible outer wall of the bronchoscope; while insufficient clamping force cannot withstand the pulling forces during the examination, causing the endoscope to slip or shift position, requiring repeated adjustments, increasing the difficulty and time cost of the operation. Doctors often rely on touch to judge the clamping force during operation; this subjective judgment is not only difficult to quantify but also prone to errors due to hand fatigue, posing certain safety risks.

[0004] Therefore, this invention proposes an auxiliary positioning and guidance device for bronchoscopy to reduce the shaking and displacement of the endoscope during the operation, thereby improving the operational stability and patient comfort during the examination. Summary of the Invention

[0005] To address the aforementioned issues, this invention provides an auxiliary positioning and guidance device for bronchoscopy, which reduces the shaking and displacement of the endoscope during the procedure, thereby improving operational stability and patient comfort.

[0006] To achieve the above objectives, the technical solution of the present invention is as follows: a bronchoscopy auxiliary positioning and guiding device, comprising a fixing plate, wherein the fixing plate is provided with a fixing mechanism for fixing the bronchoscope, a contact mechanism for flexibly conforming to the outer wall of the bronchoscope, a locking mechanism for locking the fixing force of the fixing mechanism, and a feedback mechanism for feedback on the magnitude of the fixing force of the fixing mechanism.

[0007] The fixing mechanism is also used to drive the contact mechanism to operate synchronously, so as to generate an adhesion force when fixing the outer wall of the bronchoscope; and when the contact mechanism applies an adhesion force to the outer wall of the bronchoscope, the feedback mechanism outputs a response to the magnitude of the fixing force of the fixing mechanism to fix the bronchoscope.

[0008] The technical principles of the above solution are as follows:

[0009] The flexible clamping block moves synchronously radially through a fixing mechanism, causing the contact mechanism to fit tightly against the bronchoscope. During clamping, the contact mechanism deforms under pressure, generating changes in fluid pressure. This pressure is transmitted to the elastic component within the feedback mechanism, causing it to displace and thus quantifying the magnitude of the fixing force in real time. The locking mechanism restricts the movement of the fixing mechanism based on feedback signals or preset states, ensuring a secure yet gentle fixation and preventing damage to the bronchoscope.

[0010] The above approach has the following beneficial effects:

[0011] 1. This solution achieves coordinated clamping and flexible contact through the synchronous linkage of the fixing and contact mechanisms. While the fixing mechanism radially clamps the endoscope, it simultaneously drives the contact mechanism to elastically deform and uniformly expand, tightly conforming to the outer wall of the endoscope, forming a dual guarantee of hard clamping and soft contact. Compared to traditional single clamping structures, this design reduces the risk of localized stress concentration and scratches on the endoscope from the hard grippers, while also reducing endoscope wobbling and displacement during operation, improving operational stability and patient comfort.

[0012] 2. This solution utilizes the deformation of the contact mechanism under pressure to induce changes in fluid pressure, which is then transmitted to the feedback mechanism to achieve quantitative feedback of the clamping force. The operator can perceive corresponding prompts, preventing the scope from slipping due to excessively loose clamping or damaging the scope due to excessively tight clamping. This intuitive force feedback function allows the operator to control the clamping strength, reducing operational risks associated with experience-based operation and improving the accuracy of positioning guidance.

[0013] 3. This solution integrates multiple functions into a single operation, allowing for multiple actions to be performed through a fixed mechanism without additional adjustments, thus simplifying the procedure. Doctors can focus on the endoscope screen without being distracted by auxiliary devices, effectively reducing examination time. Furthermore, the solution is compact and stable, with low manufacturing costs and strong sterilization adaptability, making it easy to promote and use in medical institutions at all levels, and possessing good clinical practical value.

[0014] Furthermore, the fixing mechanism includes several flexible clamping blocks that slide circumferentially on the fixing plate. Each flexible clamping block has a locking rod fixedly connected to its bottom. The fixing plate has several inclined grooves circumferentially for the locking rods to slide. The fixing plate also has a turntable that rotates and engages with it. Each flexible clamping block has a sliding rod fixedly connected to its top. The turntable also has several limiting grooves circumferentially for the sliding rods to slide. Both the fixing plate and the turntable have interconnected interfaces.

[0015] Beneficial effects: By linking the tilting groove with the clamping rod, and the limiting groove with the sliding rod, the rotational motion of the turntable is converted into the radial synchronous displacement of the flexible clamping blocks. This design not only achieves uniform convergence of the clamping action, ensuring uniform circumferential pressure on the microscope body, but also utilizes the turntable structure to ensure the synchronicity and stability of the movement of multiple clamping blocks, reducing damage or slippage to the microscope body caused by uneven force at a single point.

[0016] Furthermore, the contact mechanism includes a flexible ring, and the flexible clamps are all fixedly connected to the outer wall of the flexible ring; the top of the fixed plate is also circumferentially fixedly connected to several fixed blocks, and the turntable has several arc-shaped grooves circumferentially opened for the fixed blocks to slide; the inner wall of each arc-shaped groove is fixedly connected to an airbag layer, and each airbag layer is connected to a transmission pipe, and the end of the transmission pipe away from the airbag layer is connected to the flexible ring.

[0017] Beneficial effects: By utilizing the interconnected structure between the airbag layer and the flexible ring, the compression caused by the rotation of the turntable is converted into fluid pressure. When the clamping block moves, the airbag layer deforms under pressure, driving the flexible ring to expand uniformly and fit the mirror body, ensuring safe clamping.

[0018] Furthermore, the locking mechanism includes a controller and a trigger, with the controller and trigger connected by a signal; the trigger is fixedly connected to the top of the fixed plate, and the output shaft of the trigger contacts the bottom of the turntable.

[0019] Beneficial effects: When the turntable rotates to the preset position or the clamping force reaches the safety threshold, the trigger senses the state and instructs the controller to lock the turntable, preventing it from accidentally retracting or becoming too tight. This design not only simplifies the operation process and ensures a stable and reliable fixed state, but also reduces damage to the lens or slippage caused by human error, improving the safety and automation level of the device.

[0020] Furthermore, the feedback mechanism includes a housing fixedly connected to the bottom of the fixed plate, and a sliding plate slidably fitted inside the housing. Several spring groups composed of different elastic coefficients are arranged between the fixed plate and the sliding plate, with the two ends of the spring groups abutting against the fixed plate and the sliding plate respectively. Both the sliding plate and the housing have openings that communicate with the interface. The bottom of the turntable is also provided with a sliding component for driving the sliding plate to move.

[0021] Beneficial effects: By utilizing the combination of multi-elastic coefficient springs and a sliding plate, the clamping force generated by the rotation of the turntable is converted into the displacement of the sliding plate. The deformation characteristics of different springs can quantify the clamping force. This design enables the monitoring and feedback of the clamping force, ensuring that the doctor can control the fixation state and prevent damage to the endoscope due to excessive tightness or slippage due to excessive looseness.

[0022] Furthermore, the sliding assembly includes a locking block circumferentially fixed to the bottom of the turntable, and a number of slots circumferentially opened on the fixed plate for the locking block to slide; a rotating seat is rotatably fitted on the inner wall of the outer shell, and a vertical groove is circumferentially opened on the side wall of the rotating seat to engage with the locking block; a number of support rods are circumferentially fixedly connected to the outer wall of the sliding plate, and the support rods are all slidably fitted with the vertical grooves; the inner wall of the outer shell is also circumferentially opened with a number of spiral grooves for the support rods to slide.

[0023] Beneficial effects: Through the linkage of the locking block, vertical groove, and spiral groove, the rotational motion of the turntable is converted into the displacement of the sliding plate. The spiral groove design makes the sliding plate move more smoothly, and the multi-spring assembly realizes the feedback of clamping force, ensuring efficient and stable force transmission and improving the response speed and positioning accuracy of the device under complex working conditions.

[0024] Furthermore, it also includes an adjustment mechanism for adjusting the position of the outer shell; the adjustment mechanism includes several articulated arms, which are hinged to each other; one end of the articulated arm is fixedly connected to the outer wall of the outer shell, and the other end of the articulated arm is hinged to a fixed seat; each articulated arm is provided with a locking bolt at the hinge point, and each locking bolt is threaded with a locking nut.

[0025] Beneficial effects: The multi-joint arm and locking mechanism enable flexible multi-angle adjustment of the outer shell within space; by loosening or tightening the bolts, the shell's posture can be adjusted and fixed to adapt to different surgical scenarios. This design not only facilitates operation but also ensures structural stability during clamping, improving the device's clinical applicability and operational efficiency.

[0026] Furthermore, a pressure sensor is fixedly connected to the outer wall of the flexible ring, and the controller is connected to the pressure sensor signal; the controller is connected to a buzzer signal, and the controller controls the buzzer to operate based on the pressure signal emitted by the pressure sensor.

[0027] Beneficial effects: The clamping force is monitored in real time by a pressure sensor, and an audible and visual alarm is triggered by a buzzer. When the pressure is abnormal (too tight or too loose), the buzzer immediately prompts the doctor to adjust, reducing the risk of endoscope damage or slippage. This design enables monitoring and visual feedback of the clamping status, improving the safety and reliability of surgical procedures.

[0028] Furthermore, a displacement sensor is fixedly connected to the sliding plate. The controller is used to acquire the displacement signal from the displacement sensor and control the operation of the trigger based on the displacement signal.

[0029] Beneficial effects: The displacement sensor monitors the sliding plate position in real time, providing feedback on the clamping stroke. Based on this signal, the controller intelligently controls the trigger mechanism, achieving automatic adjustment of the clamping process. This design reduces human error, ensures the stability of clamping force and depth, and enhances the device's intelligence and surgical safety.

[0030] Furthermore, a cover is fixedly connected to the top of the outer shell, and the cover has an opening that communicates with the passage. A lever is also fixedly connected to the outer wall of the turntable, and a groove for the lever to slide is opened on the cover.

[0031] Beneficial effects: The cover and slide design convert the lever displacement into turntable rotation, enabling the sliding plate to be fed. The cover effectively seals the internal structure, reducing interference from external impurities on the moving parts. This design is intuitive and easy to operate, improving the device's sealing performance, protective capabilities, and ease of clinical use. Attached Figure Description

[0032] Figure 1 This is an isometric view of the bronchoscopic examination auxiliary positioning and guidance device of the present invention.

[0033] Figure 2 For the present invention Figure 1 Axonometric view of the inner shell.

[0034] Figure 3 For the present invention Figure 2 Axonometric view of the turntable.

[0035] Figure 4 For the present invention Figure 3 Axonometric view of the fixed plate from below.

[0036] Figure 5 For the present invention Figure 2 Side sectional view of the inner shell.

[0037] Figure 6 For the present invention Figure 2 Axonometric drawing of the central pivot from below.

[0038] The reference numerals in the accompanying drawings of the instruction manual include: 1. Fixing plate; 2. Flexible clamping block; 3. Clamping rod; 4. Turntable; 5. Slide rod; 6. Flexible ring; 7. Airbag layer; 8. Fixing block; 9. Outer shell; 10. Sliding plate; 11. Spring assembly; 12. Clamping block; 13. Rotary seat; 14. Support rod; 15. Articulated arm; 16. Fixing seat; 17. Locking bolt; 18. Toggle lever; 19. Cover. Detailed Implementation

[0039] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0040] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0041] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0042] The following detailed description illustrates the specific implementation method:

[0043] Example 1:

[0044] As attached Figures 1-4 As shown: A bronchoscopy auxiliary positioning and guidance device includes a fixing plate 1. The fixing plate 1 is provided with a fixing mechanism for fixing the bronchoscope, a contact mechanism for flexibly conforming to the outer wall of the bronchoscope, a locking mechanism for locking the fixing force of the fixing mechanism, and a feedback mechanism for feedback on the magnitude of the fixing force of the fixing mechanism. In this embodiment, the positioning of the bronchoscope is performed under the guidance of an ultrasound system.

[0045] The fixing mechanism is also used to drive the contact mechanism to operate synchronously, so as to generate an adhesion force when fixing the outer wall of the bronchoscope; and when the contact mechanism applies an adhesion force to the outer wall of the bronchoscope, the feedback mechanism outputs a response to the magnitude of the fixing force of the fixing mechanism to fix the bronchoscope.

[0046] Combination Figure 3 As shown, the fixing mechanism includes several flexible clamping blocks 2 that slide circumferentially on the fixing plate 1. In this embodiment, the side of the flexible clamping block 2 near the bronchoscope is made of flexible material, while the other side is provided with a rigid connection to ensure stable transmission of power to the moving parts. Each flexible clamping block 2 has a locking rod 3 fixedly connected to its bottom by screws. The fixing plate 1 has several inclined grooves circumferentially opened for the sliding of the locking rod 3 (e.g., ...). Figure 4As shown); a turntable 4 is also rotatably fitted on the fixed plate 1, and a sliding rod 5 is fixedly connected to the top of the flexible clamp 2 by screws. The turntable 4 is also circumferentially opened with several limiting grooves for the sliding rod 5 to slide. In this embodiment, the limiting grooves are arc-shaped; the fixed plate 1 and the turntable 4 are both opened with interconnected interfaces.

[0047] Specifically, when the operator rotates the turntable 4, the turntable 4 rotates circumferentially relative to the fixed plate 1. The turntable 4 has several arc-shaped limiting grooves, and the sliding rods 5 on the top of each flexible clamping block 2 are respectively embedded in the corresponding limiting grooves. When the turntable 4 rotates, the arc-shaped contour of the limiting grooves pushes the sliding rods 5 along the groove's trajectory. Since the sliding rods 5 are fixedly connected to the flexible clamping blocks 2, this movement forces the flexible clamping blocks 2 to produce radial displacement on the plane of the fixed plate 1.

[0048] Simultaneously, the locking rod 3 at the bottom of the flexible clamping block 2 is embedded in the inclined groove opened on the fixed plate 1; the sliding trajectory of the locking rod 3 in the inclined groove is coupled with the radial movement direction driven by the turntable 4, and the inclination angle of the inclined groove determines the path of movement of the locking rod 3. When the turntable 4 drives the flexible clamping block 2 to move radially inward (towards the center), the locking rod 3 slides inward along the inclined groove, and vice versa. The cooperation between the inclined groove and the locking rod 3 plays a guiding and constraining role, ensuring that all flexible clamping blocks 2 move synchronously and stably towards the center or centrifugally.

[0049] Furthermore, the arc-shaped limiting groove causes the sliding rod 5 to move the flexible clamping block 2 along the inclined groove towards the center of the fixing plate 1, allowing each flexible clamping block 2 to synchronously contract or expand radially, thereby clamping the bronchoscope body passing through the interface. During the entire movement, the side of the flexible clamping block 2 closest to the scope body is made of flexible material, making flexible contact with the outer wall of the scope body to avoid hard damage; while the other side is rigidly connected to ensure power transmission. The interconnected interfaces on the fixing plate 1 and the turntable 4 are used for the bronchoscope body to pass through, allowing the entire device to be fitted around the scope body without affecting the normal insertion and axial movement of the scope body, while ensuring the effective range of radial clamping of the scope body by the fixing mechanism.

[0050] Combination Figure 2 As shown, the contact mechanism includes a flexible ring 6, and flexible clamping blocks 2 are all bonded to the outer wall of the flexible ring 6; the top of the fixing plate 1 is also circumferentially fixed with several fixing blocks 8 (such as...) by screws. Figure 3 As shown, the turntable 4 has several arc-shaped grooves circumferentially open for the sliding of the fixing block 8; an airbag layer 7 is fixedly bonded to the inner wall of each arc-shaped groove, and a transmission tube is connected to each airbag layer 7. The end of the transmission tube away from the airbag layer 7 is connected to the flexible ring 6. In this embodiment, both the flexible ring 6 and the airbag layer 7 are made of flexible materials, such as medical silicone or rubber.

[0051] Specifically, when the operator rotates the turntable 4, the flexible clamp 2 in the fixing mechanism moves radially towards the center under the guidance of the limiting groove and the tilting groove, clamping the bronchoscope body. At the same time, since the outer wall of the flexible ring 6 is bonded and fixed to the inner side of each flexible clamp 2, the movement of the flexible clamp 2 will synchronously drive the flexible ring 6 to contract radially as a whole.

[0052] During this process, the fixing block 8 on the fixing plate 1 is embedded in the arc-shaped groove circumferentially opened on the turntable 4. When the turntable 4 rotates, the fixing block 8 slides along the arc-shaped groove, gradually pressing the airbag layer 7 on the inner wall of the arc-shaped groove. The airbag layer 7 is deformed by the compression of the fixing block 8, and the gas inside is forced into the flexible ring 6 through the transmission tube. The flexible ring 6 expands uniformly under the action of gas filling, making its inner sidewall fit more tightly and gently against the outer wall of the bronchoscope. Conversely, when the turntable 4 rotates in the opposite direction and the flexible clamp 2 expands outward, the pressure of the fixing block 8 on the airbag layer 7 is released, and the gas is drawn back into the airbag layer 7 from the flexible ring 6 through the transmission tube. The flexible ring 6 contracts and detaches from the scope. In this embodiment, the flexible ring 6 is initially in a deflated state and gradually expands during clamping to form a flexible fit.

[0053] This motion process achieves mechanical linkage between the fixing mechanism and the contact mechanism. The clamping action directly drives the flexible fitting action, requiring no additional operation. On one hand, the flexible ring 6 expands under gas drive, reducing the localized point pressure on the endoscope from the rigid grippers and effectively preventing scratches on the endoscope. On the other hand, the elastic deformation of the flexible material provides buffering and self-adaptive capabilities, enabling endoscopes of different diameters to achieve stable wrapping fixation, improving endoscope stability and patient comfort during the examination. Simultaneously, the gas transmission and the structure of the airbag layer 7 achieve flexible transmission of clamping force, further reducing the risk of injury caused by improper operator force.

[0054] The locking mechanism includes a controller and a trigger, with the controller and trigger connected by a signal. The trigger is fixedly connected to the top of the mounting plate 1 by screws, and the output shaft of the trigger contacts the bottom of the turntable 4. In this embodiment, the trigger is an electromagnetic brake, and to meet installation requirements, the trigger can also be embedded in the mounting plate 1.

[0055] Specifically, the rotational movement of turntable 4 is locked and released through the cooperation of an electromagnetic brake (trigger) and a controller. When a fixed angle is required, the controller controls the output shaft of the electromagnetic brake (such as a brake lever or friction plate) to extend, and its output shaft presses against the bottom of turntable 4 to generate frictional torque, locking turntable 4. When the release command is given, the output shaft of the trigger automatically resets, and turntable 4 resumes its rotation. This design features fast response and high locking force, ensuring the stability and safety of surgical operations while simplifying the operation process.

[0056] Combination Figure 5As shown, the feedback mechanism includes a housing 9 fixed to the bottom of the fixed plate 1 by bolts. A sliding plate 10 is slidably fitted inside the housing 9. Several spring groups 11 composed of different elastic coefficients are arranged between the fixed plate 1 and the sliding plate 10. The two ends of each spring group 11 abut against the fixed plate 1 and the sliding plate 10, respectively. Both the sliding plate 10 and the housing 9 have openings communicating with the interface. The bottom of the turntable 4 is also provided with a sliding component for moving the sliding plate 10. In this embodiment, the spring group 11 consists of three sets of butterfly springs with spring coefficients k1=3.5N / mm, k2=7.2N / mm, and k3=11.5N / mm, respectively. The three sets of butterfly springs are sequentially pressed and engaged at 3mm, 6mm, and 10mm strokes of the sliding plate 10 as it slides axially from its initial position. Each set of butterfly springs emits a mechanical "click" sound when it reaches the pressing point.

[0057] The sliding assembly includes a locking block 12 circumferentially fixed to the bottom of the turntable 4 by screws; the fixing plate 1 has several slots circumferentially open for the locking block 12 to slide; the inner wall of the outer shell 9 is rotatably fitted with a rotating seat 13, and the side wall of the rotating seat 13 has vertical grooves circumferentially open for engaging with the locking block 12 (e.g., Figure 6 As shown); the outer wall of the sliding plate 10 is circumferentially fixed with several support rods 14 by screws, and the support rods 14 are all slidably engaged with the vertical groove. The inner wall of the outer shell 9 is also circumferentially opened with several spiral grooves for the support rods 14 to slide.

[0058] Specifically, when the operator rotates the turntable 4 to drive the fixing mechanism to radially clamp the bronchoscope body, the rotation of the turntable 4 simultaneously drives the rotating seat 13 in the feedback mechanism to rotate synchronously through the locking block 12 at its bottom. Specifically, after the locking block 12 passes through the locking groove on the fixing plate 1, it engages with the vertical groove opened on the side wall of the rotating seat 13 to form a circumferential linkage. When the rotating seat 13 rotates, the vertical groove on its inner wall drives the support rod 14 on the outer wall of the sliding plate 10 to rotate together. However, the support rod 14 is also embedded in the spiral groove on the inner wall of the outer shell 9, and the trajectory of the spiral groove causes the support rod 14 to move axially while rotating with the rotating seat 13. Since the support rod 14 is fixed on the sliding plate 10, the sliding plate 10 is thus driven to produce axial displacement relative to the outer shell 9 and the fixing plate 1.

[0059] As the sliding plate 10 moves closer to the fixed plate 1, the disc springs disposed between the fixed plate 1 and the sliding plate 10 are compressed sequentially. The spring group 11 with different elastic coefficients generates an increasing elastic reaction force during the compression process. The magnitude of this reaction force is proportional to the displacement of the sliding plate 10, which is determined by the rotation angle of the turntable 4. The larger the rotation angle of the turntable 4, the greater the clamping force of the fixing mechanism, and the greater the compression of the spring group 11 in the feedback mechanism.

[0060] In this embodiment, when the sliding plate 10 moves 3mm from its initial position, the first set of springs (k1) is compressed, its arc-shaped disc flattens, and it collides with the adjacent limiting member, producing a crisp "click" sound, indicating that the clamping force has entered the light load range, and the operator feels slight resistance. When the sliding plate 10 continues to move to 6mm, the second set of springs (k2) is compressed, producing another "click" sound. At this time, the resistance increases significantly, indicating that it has entered the medium clamping force range, and the operator needs to apply force cautiously. When the sliding plate 10 moves to 10mm, the third set of springs (k3) is compressed, producing a third "click" sound, and the resistance increases, indicating that the clamping force has reached the preset maximum safety value. At this time, the locking mechanism can be triggered to lock.

[0061] Throughout the process, the axial displacement of the sliding plate 10 directly reflects the clamping force of the fixation mechanism on the endoscope via the spring compression, without relying on electronic sensors. Mechanical audible alerts at the compression of each spring provide auditory feedback to the operator, combined with tactile feedback, to provide tiered clamping force indication. This process integrates fixation, force sensing, threshold alerts, and subsequent automatic locking into a single rotary table 4 rotation operation, enhancing the safety and controllability of bronchoscopy fixation procedures.

[0062] Example 2:

[0063] As attached Figure 1 As shown, the difference from Embodiment 1 is that this embodiment also includes an adjustment mechanism for adjusting the position of the outer casing 9; the adjustment mechanism includes several articulated arms 15, which are hinged to each other; one end of the articulated arm 15 is fixedly connected to the outer wall of the outer casing 9 by bolts, and the other end of the articulated arm 15 is hinged to a fixing seat 16; each hinge joint of the articulated arm 15 is provided with a locking bolt 17, and each locking bolt 17 is threaded with a locking nut. In this embodiment, the fixing seat 16 is used to fix the device to an operating table or hospital bed, and can be fixed in the form of a C-clamp, a desktop clamp, or a suction cup base, etc. In some preferred embodiments, a turntable can also be integrated into the fixing seat 16, so that the articulated arm 15 can be adjusted in direction.

[0064] The specific implementation process is as follows: Based on the patient's position and the required angle and height for bronchoscope insertion, the operator manually adjusts the relative angles of each articulated arm 15. Since adjacent articulated arms 15 are hinged together, they can swing with multiple degrees of freedom. The operator holds the outer shell 9 with one hand and unfolds the articulated arm 15 to a suitable position with the other hand, so that the central axis of the outer shell 9 is roughly aligned with the patient's mouth and nose, and ensures that the bronchoscope can smoothly pass through the interface on the outer shell 9.

[0065] Then, after adjustment, tighten the lock nuts at each hinge in sequence. The lock nuts cooperate with the lock bolts 17, pressing the hinge surfaces together through the threads to generate sufficient friction or locking force, thereby fixing the relative angle between the articulated arms 15. It is recommended to start tightening from the end closer to the fixed base 16 and gradually move towards the end closer to the outer shell 9 to ensure overall stability.

[0066] Finally, after confirming that the position and angle of the outer casing 9 in space are no longer unstable, the bronchoscope can be inserted into the patient's airway through the interface of the outer casing 9, and the other functions of the device can be used. If fine-tuning of the position is required, the corresponding locking nut can be loosened, the angle of the joint arm 15 can be readjusted, and then tightened again.

[0067] Example 3:

[0068] The difference from Embodiment 2 is that a pressure sensor is also fixedly connected to the outer wall of the flexible ring 6, and the controller is signal-connected to the pressure sensor; the controller is signal-connected to a buzzer, and the controller controls the buzzer to operate based on the pressure signal emitted by the pressure sensor. In this embodiment, the pressure sensor is fixed to an appropriate position on the outer wall of the flexible ring 6 by screws or adhesive, with its sensitive surface facing the inside of the flexible ring 6, enabling real-time detection of the contact pressure between the flexible ring 6 and the outer wall of the bronchoscope. The signal line of the pressure sensor is led out through a wire hole on the housing 9 and connected to the signal input terminal of the controller.

[0069] The specific implementation process is as follows: The controller is simultaneously connected to the buzzer signal. The buzzer can be installed on the fixed plate 1, the outer casing 9, or the adjustment mechanism, so that the operator can clearly hear the alarm sound. Two pressure thresholds are preset inside the controller: the first threshold is the "safe fit pressure lower limit", which corresponds to the state where the lens body is moderately wrapped by the flexible ring 6 but has not yet been compressed; the second threshold is the "overload pressure upper limit", which corresponds to the dangerous pressure value that may cause damage to the lens body.

[0070] During implementation, when the operator rotates the turntable 4 to drive the flexible clamping block 2 to radially clamp the mirror body, the flexible ring 6 expands uniformly under the action of gas filling and adheres to the outer wall of the mirror body. The pressure sensor collects the contact pressure value between the flexible ring 6 and the mirror body in real time and continuously transmits the signal to the controller.

[0071] The controller processes and compares the received pressure signals: when the pressure value is within the normal range (between the first and second thresholds), the controller does not trigger the buzzer, and the operator can operate normally by touch; when the pressure value is below the first threshold, it indicates that the flexible coil 6 is not sufficiently fitted and the clamping force is insufficient, and the lens may slip off. The controller drives the buzzer to emit intermittent short beeps (such as "beep-beep-") to remind the operator to continue increasing the clamping force.

[0072] When the pressure value reaches or exceeds the second threshold, it indicates that the pressure of the flexible coil 6 on the mirror body is too high, posing a risk of damage. The controller immediately drives the buzzer to emit a continuous, sharp alarm sound (such as a long "beep" sound), and at the same time, it can automatically lock the turntable 4 through the locking mechanism to prevent further overpressure.

[0073] Upon hearing the alarm, the operator should stop rotating turntable 4. If it is an overpressure alarm, turntable 4 can be rotated slightly in the opposite direction to reduce the pressure of the flexible ring 6 to a safe range, at which point the buzzer alarm will stop. When the scope is reliably fixed and the pressure value is stable within the safe range, the buzzer remains silent, indicating to the operator that it is safe to proceed with subsequent inspection operations.

[0074] Example 4:

[0075] The difference from Embodiment 3 is that a displacement sensor is also fixedly connected to the sliding plate 10 by screws. The controller is used to acquire the displacement signal from the displacement sensor and control the operation of the trigger based on the displacement signal. In this embodiment, the displacement sensor can be a linear potentiometer, a differential transformer type displacement sensor, or a magnetostrictive displacement sensor. Its sensing element moves synchronously with the sliding plate 10, and the detection end is fixed to the housing 9 or the fixing plate 1. The signal line of the displacement sensor is led out through the wire hole in the housing 9 and connected to the analog input terminal of the controller.

[0076] The specific implementation process is as follows: First, a clamping force threshold corresponding to the displacement of the sliding plate 10 is preset inside the controller. Since the displacement of the sliding plate 10 has a definite mapping relationship with the rotation angle of the turntable 4, the radial displacement of the flexible clamping block 2, and the contact pressure of the flexible ring 6, the controller can indirectly obtain the current fixing force through the displacement signal. The preset displacement threshold corresponds to the compression point of the aforementioned three sets of butterfly springs: for example, the first threshold corresponds to a 3mm displacement (light clamping completed), the second threshold corresponds to a 6mm displacement (medium clamping), and the third threshold corresponds to a 10mm displacement (maximum safe clamping force).

[0077] During implementation, when the operator rotates the turntable 4 to move the sliding plate 10 axially, the displacement sensor detects the displacement of the sliding plate 10 relative to the outer shell 9 or the fixed plate 1 in real time and continuously transmits the displacement signal to the controller; the controller processes and judges the displacement signal.

[0078] When the displacement gradually increases but has not yet reached the first threshold, the controller does not trigger the trigger (electromagnetic brake), allowing the operator to continue adjusting the clamping force. When the displacement reaches or exceeds the first threshold (3mm) but does not reach the second threshold (6mm), the controller can send a signal to the buzzer to indicate that the operator has entered the light clamping range, but the trigger remains in the released state. When the displacement reaches or exceeds the second threshold (6mm) but does not reach the third threshold (10mm), the controller issues a medium-level prompt, and the trigger temporarily does not move. When the displacement reaches or exceeds the third threshold (10mm), the controller immediately sends a locking command to the trigger (electromagnetic brake). After the trigger is energized, its output shaft extends and locks the turntable 4 against the friction surface at the bottom of the turntable 4, preventing further rotation. At the same time, the controller can drive the buzzer to sound an alarm to indicate to the operator that the clamping force has reached the preset maximum value.

[0079] If the operator needs to release the mirror, a reset signal can be sent to the controller via the manual unlock switch. The controller then cuts off the power to the trigger, the electromagnetic brake output shaft retracts, and the turntable 4 resumes rotation. The displacement sensor detects the return movement of the sliding plate 10, and the controller updates the status based on the new displacement signal.

[0080] This embodiment utilizes a displacement sensor to replace or assist the pressure sensor, indirectly reflecting the clamping force by detecting the displacement of the sliding plate 10, thus achieving linkage control. The controller automatically triggers locking based on the displacement signal, automating and enhancing the precision of the clamping process. This further reduces the uncertainty of operator judgment based on experience, improving the safety and reliability of the device.

[0081] Example 5:

[0082] As attached Figure 2 As shown, the difference from Embodiment 4 is that a cover 19 is also fixedly connected to the top of the outer shell 9 by screws. The cover 19 has a cover opening communicating with the through-hole. A lever 18 is also fixedly connected to the outer wall of the turntable 4 by screws. A groove for sliding the lever 18 is opened on the cover 19. In some preferred embodiments, the rotation of the turntable 4 can also be achieved by motor drive. Specifically, the motor is integrated into the outer wall of the outer shell 9, and a gear is coaxially fixedly connected to the motor output shaft. An external gear ring meshing with the gear is fixedly welded to the outer wall of the turntable 4.

[0083] The specific implementation process is as follows: In manual operation, the operator holds the device and uses their thumb or forefinger to move the lever 18 along the groove on the cover 19. The lever 18 drives the turntable 4 to rotate synchronously, thereby driving the fixing mechanism, contact mechanism, and feedback mechanism to work together in sequence. The two ends of the groove correspond to the initial position of the turntable 4 (when the flexible clamping block 2 is fully released) and the maximum clamping position (when the preset safety clamping force threshold is reached), respectively. When the turntable 4 rotates to a specific angle (such as the point where the spring assembly 11 is pressed), it provides a tactile feedback to help the operator perceive the degree of clamping.

[0084] In motor-driven operation, the controller automatically controls the forward and reverse rotation and the amount of rotation of the motor based on signals from the feedback mechanism (displacement or pressure sensor). The controller drives the motor to rotate the turntable 4, completing the clamping and bonding process. When the sensor signal reaches a preset threshold, the controller stops the motor and triggers the locking mechanism to maintain the clamping state. If release is required, the drive reverses. This solution achieves automated and precise clamping and releasing, eliminating the need for manual force application by the operator. It is suitable for long surgeries or scenarios requiring frequent adjustments to the clamping force. The controller uses real-time feedback signals for closed-loop adjustment, enabling it to clamp the endoscope with a constant and precise force, avoiding the risk of uneven force during manual operation.

[0085] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the scope of protection of this invention.

Claims

1. A bronchoscopy auxiliary positioning and guiding device, comprising a fixing plate (1), characterized in that, The fixing plate (1) is provided with a fixing mechanism for fixing the bronchoscope, a contact mechanism for flexibly fitting the outer wall of the bronchoscope, a locking mechanism for locking the fixing force of the fixing mechanism, and a feedback mechanism for feedback on the magnitude of the fixing force of the fixing mechanism. The fixing mechanism is also used to drive the contact mechanism to operate synchronously, so as to generate an adhesion force when fixing the outer wall of the bronchoscope; and when the contact mechanism applies an adhesion force to the outer wall of the bronchoscope, the feedback mechanism outputs a response to the magnitude of the fixing force of the fixing mechanism to fix the bronchoscope.

2. The bronchoscopy auxiliary positioning and guidance device according to claim 1, characterized in that, The fixing mechanism includes several flexible clamps (2) that slide circumferentially on the fixing plate (1). Each flexible clamp (2) has a locking rod (3) fixedly connected to its bottom. The fixing plate (1) has several inclined grooves circumferentially for the locking rod (3) to slide. The fixing plate (1) also has a turntable (4) that rotates on it. Each flexible clamp (2) has a sliding rod (5) fixedly connected to its top. The turntable (4) also has several limiting grooves circumferentially for the sliding rod (5) to slide. The fixing plate (1) and the turntable (4) both have interfaces that communicate with each other.

3. The bronchoscopy auxiliary positioning and guidance device according to claim 2, characterized in that, The contact mechanism includes a flexible ring (6) and a flexible clamp (2) which are fixedly connected to the outer wall of the flexible ring (6); the top of the fixed plate (1) is also circumferentially fixedly connected to several fixed blocks (8), and the turntable (4) has several arc-shaped grooves circumferentially opened for the fixed blocks (8) to slide; the inner wall of the arc-shaped groove is fixedly connected to an airbag layer (7), and a transmission pipe is connected to the airbag layer (7), and the end of the transmission pipe away from the airbag layer (7) is connected to the flexible ring (6).

4. The bronchoscopy auxiliary positioning and guidance device according to claim 3, characterized in that, The locking mechanism includes a controller and a trigger, with the controller and the trigger connected by a signal; the trigger is fixedly connected to the top of the fixed plate (1), and the output shaft of the trigger contacts the bottom of the turntable (4).

5. The bronchoscopy auxiliary positioning and guidance device according to claim 4, characterized in that, The feedback mechanism includes a housing (9) fixedly connected to the bottom of the fixed plate (1), and a sliding plate (10) is slidably fitted inside the housing (9). A number of spring groups (11) composed of different elastic coefficients are provided between the fixed plate (1) and the sliding plate (10). The two ends of the spring groups (11) abut against the fixed plate (1) and the sliding plate (10) respectively. Both the sliding plate (10) and the housing (9) have openings that communicate with the interface. The bottom of the turntable (4) is also provided with a sliding component for driving the sliding plate (10) to move.

6. The bronchoscopy auxiliary positioning and guiding device according to claim 5, characterized in that, The sliding assembly includes a locking block (12) circumferentially fixed to the bottom of the turntable (4), and a number of slots for the locking block (12) to slide on the fixed plate (1) circumferentially; a rotating seat (13) is rotatably fitted on the inner wall of the outer shell (9), and a vertical groove for engaging with the locking block (12) is circumferentially opened on the side wall of the rotating seat (13); a number of support rods (14) are circumferentially fixed to the outer wall of the sliding plate (10), and the support rods (14) are all slidably fitted with the vertical grooves. The inner wall of the outer shell (9) also has a number of spiral grooves for the support rods (14) to slide on the circumferentially.

7. The bronchoscopy auxiliary positioning and guidance device according to claim 6, characterized in that, It also includes an adjustment mechanism for adjusting the position of the outer shell (9); the adjustment mechanism includes several articulated arms (15), which are hinged to each other; one end of the articulated arm (15) is fixedly connected to the outer wall of the outer shell (9), and the other end of the articulated arm (15) is hinged to a fixed seat (16); each articulated arm (15) is provided with a locking bolt (17) at the hinge point, and each locking bolt (17) is threaded with a locking nut.

8. The bronchoscopy auxiliary positioning and guidance device according to claim 7, characterized in that, A pressure sensor is also fixedly connected to the outer wall of the flexible ring (6), and the controller is connected to the pressure sensor signal; the controller is connected to a buzzer signal, and the controller controls the buzzer to run based on the pressure signal emitted by the pressure sensor.

9. The bronchoscopy auxiliary positioning and guiding device according to claim 8, characterized in that, A displacement sensor is also fixedly connected to the sliding plate (10). The controller is used to obtain the displacement signal of the displacement sensor and control the operation of the trigger based on the displacement signal.

10. The bronchoscopy auxiliary positioning and guidance device according to claim 9, characterized in that, The top of the outer shell (9) is also fixedly connected to a cover (19), which has a cover opening that communicates with the through-hole. The outer wall of the turntable (4) is also fixedly connected to a lever (18), and the cover (19) has a sliding groove for the lever (18) to slide.

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