Retractable mechanism and endoscope

Abstract

The invention provides a retracting and releasing mechanism and an endoscope, and relates to the technical field of medical instruments.The retracting and releasing mechanism comprises a shell detachably arranged on a handle, and the shell is provided with an outlet; the camera module comprises a cable and a shooting piece arranged at the far end of the cable; the folding and unfolding part is arranged on the shell and is used for driving the camera module to enter and exit from the outlet, so that the shooting part is switched between a folding state and a shooting state; under the condition that the shooting piece is in the storage state, the shooting piece is stored in the shell; when the shooting piece is in the shooting state, the shooting piece extends out of the shell and is used for being fixed to the far end of the instrument tube. Compared with the prior art, the equipment maintenance and disinfection cost is reduced, consumption of disposable instruments is reduced, the overall expenditure of a medical institution is reduced, meanwhile, the medical cost of a patient is reduced, and the utilization rate of medical resources is increased.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and particularly to a retracting and deploying mechanism and an endoscope. Background Art

[0002] An endoscope is a widely used diagnostic and therapeutic tool in the field of modern medicine, especially playing an important role in clinical operations such as gastroscopy, bronchoscopy, cystoscopy, etc. Since the endoscope needs to directly contact the patient's digestive tract, respiratory tract and other parts during use, there is a high risk of cross-infection. Therefore, after each use, it must go through a strict cleaning and disinfection process to ensure patient safety. Usually, the disinfection process of the endoscope includes multiple steps such as mechanical cleaning, chemical disinfection, and drying and sterilization, involving special disinfection equipment and consumables, which are not only costly but also time-consuming, affecting the diagnosis and treatment efficiency of medical institutions. Especially in the case of a large number of patients, the disinfection and reprocessing costs of traditional endoscopes have become an important burden in the operation of medical institutions.

[0003] To solve the problems of high disinfection cost, complex process and difficult infection control of traditional endoscopes, disposable endoscopes have emerged. The disposable endoscope can be directly discarded after use, avoiding the high cost and complex operation brought by repeated disinfection, improving medical efficiency and reducing the infection risk, which is particularly prominent in departments with strict infection control requirements such as emergency and intensive care. However, although the disposable endoscope reduces the disinfection cost, its production cost is still high, mainly affected by materials, manufacturing processes and imaging systems, resulting in a still large overall expenditure for medical institutions. Summary of the Invention

[0004] To solve the above problems, the present application provides a retracting and deploying mechanism and an endoscope.

[0005] In a first aspect, the present application provides a retracting and deploying mechanism, adopting the following technical solution: A retracting and deploying mechanism is applied to an endoscope. The endoscope includes a handle and an instrument tube. The retracting and deploying mechanism includes: A housing detachably disposed on the handle, and the housing is provided with an outlet; A camera module, the camera module includes a cable and a shooting member disposed at the distal end of the cable; and A retracting and deploying member disposed in the housing for driving the camera module to enter and exit the outlet, so that the shooting member switches between a storage state and a shooting state; Wherein, when the shooting member is in the storage state, the shooting member is stored in the housing; when the shooting member is in the shooting state, the shooting member extends out of the housing and is used to be fixed to the distal end of the instrument tube.

[0006] Second aspect, the present application provides an endoscope, adopting the following technical solution: An endoscope includes the retracting and deploying mechanism described in the above technical solution, and further includes a handle and an instrument tube. A fixing member for fixing the photographing member is provided at the distal end of the instrument tube.

[0007] The present invention has the following advantages and beneficial effects: In the present application, by arranging a camera module and a retracting and deploying member in the housing, the camera module can be switched between a storage state and a photographing state. When using the endoscope, the retracting and deploying member drives the camera module to extend out of the housing through the outlet of the housing and is fixed at the distal end of the instrument tube, thereby realizing the visualization of the insertion process of the instrument tube, guiding the operator to accurately position, and improving the accuracy of inspection and operation. After use, the retracting and deploying member can retract the camera module into the interior of the housing. Since no other channels are provided inside the camera module, its contamination is limited to the outer surface. Therefore, only the outer surface of the camera module needs to be disinfected to meet the requirement of repeated use, thereby reducing the disinfection difficulty. Compared with the traditional overall disinfection method, the present application not only reduces the equipment maintenance and disinfection costs, but also reduces the consumption of disposable instruments, resulting in a decrease in the overall expenditure of medical institutions, while reducing the medical expenses of patients and improving the utilization rate of medical resources. Description of the Drawings

[0008] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0009] Figure 1 is the structural schematic diagram of an embodiment of the present application; Figure 2 is the first partial structural schematic diagram of an embodiment of the present application; Figure 3 is the second partial structural schematic diagram of an embodiment of the present application; Figure 4 is the cross-sectional view of an embodiment of the present application; Figure 5 is the sectional view of an embodiment of the present application; Figure 6 is Figure 5 the enlarged structural schematic diagram of part A in Figure 7 is the exploded schematic diagram of an embodiment of the present application; Figure 8 is the cross-sectional view of the endoscope; Figure 9 is the partial structural schematic diagram of the endoscope; Figure 10 is Figure 8 The enlarged structural schematic diagram of part B; Figure 11 is the structural schematic diagram of the endoscope; Figure 12 is the structural schematic diagram of the distal position of the instrument tube; Figure 13 is the structural schematic diagram of the distal position of the instrument tube with a part of the membrane sleeve removed; Figure 14 is the structural schematic diagram of the elastic piece.

[0010] The markings in the figure are: 10. Endoscope; 11. Handle; 12. Instrument tube; 12a. Elastic piece; 12b. Membrane sleeve; 100. Housing; 110. Outlet; 120. Accommodating cavity; 130. Guiding structure; 140. Connecting wire; 150. Limiting groove; 200. Camera module; 210. Cable; 220. Shooting part; 221. Air guide groove; 300. Retracting and releasing part; 310. Movable part; 311. Rotating wheel; 400. Disconnection component; 410. Plug; 411. First magnet; 412. Abutting protrusion; 420. Socket; 421. Second magnet. Detailed implementation manners

[0011] To make the objectives, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be described in detail below. 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 implementation manners obtained by those of ordinary skill in the art without creative efforts shall fall within the scope protected by the present invention.

[0012] The terms "first", "second", etc. in the specification and claims of this application are used to distinguish similar objects, rather than to describe a specific order or sequence. It should be understood that such data can be interchanged under appropriate circumstances so that the embodiments of this application can be implemented in an order other than those illustrated or described here, and the objects distinguished by "first", "second", etc. are usually of the same type, and the number of objects is not limited. For example, the first object can be one or multiple. In addition, "and / or" in the specification and claims means at least one of the connected objects, and the character " / ", generally represents an "or" relationship between the associated objects before and after.

[0013] In the embodiments of this application, "proximal end" and "distal end" refer to the relative distances of each component from the user in the usage environment. Among them, the end closer to the user is designated as the "proximal end", and the end farther from the user is designated as the "distal end".

[0014] Endoscopes are one of the widely used diagnostic and therapeutic tools in the field of modern medicine, especially playing an irreplaceable role in fields such as gastroscopy, bronchoscopy, cystoscopy, etc. However, since endoscopes need to directly contact parts such as the digestive tract and respiratory tract during use, there is a relatively high risk of cross-infection. Therefore, after each use, they must go through strict cleaning and disinfection processes to ensure patient safety. The traditional endoscope disinfection process usually includes multiple steps such as mechanical cleaning, chemical disinfection, and drying sterilization. It is not only complex in operation but also has high requirements for equipment and personnel. The entire process requires a large amount of time, disinfectants, and professional disinfection equipment, making medical institutions bear high disinfection and maintenance costs in daily operations. Especially in the case of high-frequency use, this problem is more prominent.

[0015] To reduce the disinfection cost and the difficulty of infection control of traditional endoscopes, disposable endoscopes have gradually come into use. Disposable endoscopes can be directly discarded after use, avoiding the cumbersome disinfection process, improving medical efficiency, and effectively reducing the risk of infection, especially suitable for scenarios with strict infection control requirements such as emergency and intensive care. However, the inventor found that the cost of the camera module of disposable endoscopes is relatively high. Its manufacturing involves high-precision optical sensors, image processing chips and other components, and the cost accounts for a large proportion in the whole machine. According to the requirement of single use, the camera module is discarded after each inspection, resulting in the high-cost core components being discarded after only one use, not only increasing the cost burden on medical institutions but also causing a large amount of resource waste.

[0016] In addition, the camera module usually contains a variety of rare materials, such as high-precision glass lenses, precious metal electrodes, and special semiconductor chips, etc. These materials may cause environmental pollution during the waste treatment process. Especially when disposable endoscopes are used on a large scale, the pressure of medical waste treatment increases significantly. On the other hand, due to the tight supply chain of key materials such as high-end semiconductors and precision optical components globally, the large amount of waste of camera modules also exacerbates the consumption of medical resources and is not conducive to the sustainable development of the industry. Therefore, how to reduce the use cost of the camera module and improve its reuse rate on the premise of ensuring infection control has become an urgent problem to be solved in the current medical device industry.

[0017] To solve the above problems, the present invention provides a retracting mechanism. By setting a retracting member to store and release the camera module, the camera module can be stored inside the instrument tube before surgery, released to the distal end of the instrument tube when needed to achieve intraoperative visualization operation, and the camera module can be separately recycled after surgery. Since there are no other channels inside the camera module, the pollution range is mainly limited to the outer surface. Therefore, only disinfecting the outer surface of the camera module can meet the requirement of repeated use, thus simplifying the disinfection process and reducing the disinfection difficulty.

[0018] Compared with the traditional method of overall disinfection of endoscopes, the retracting and deploying mechanism of the present application not only reduces the costs required for equipment maintenance and disinfection, but also reduces the dependence on disposable instruments, enabling medical institutions to more effectively manage medical resources and reduce the generation of medical waste. In addition, since the camera module can be recycled and reused, the waste of expensive optical components and precision electronic components is avoided, thereby reducing the overall medical cost, enabling patients to obtain high-quality diagnosis and treatment services at a lower cost, and also contributing to the sustainable development of the medical industry.

[0019] The following combines the attached Figures 1 to 14 , and through specific embodiments and their application scenarios, a retracting and deploying mechanism and an endoscope provided by the present application are described in detail.

[0020] The first aspect of this embodiment describes a retracting and deploying mechanism in detail.

[0021] Referring to Figure 9 , Figure 11 , the embodiment of the present application discloses a retracting and deploying mechanism, which is applied to the endoscope 10. The endoscope 10 includes a handle 11 and an instrument tube 12. The instrument tube 12 is used to provide channels for operating instruments and flushing fluid. The handle 11 is for the doctor to hold and operate. During actual use, the operator holds the handle 11 and inserts the distal end of the instrument tube 12 into the body, so that the instrument tube 12 forms an operation channel for external instruments to enter the body to perform corresponding operations. At the same time, the flushing fluid can also be delivered to the target site through the instrument tube 12 to assist in cleaning or optimizing the vision, improving the accuracy and safety of the operation.

[0022] Exemplarily, the retracting and deploying mechanism can adopt a detachable design, enabling it to be recycled or disinfected independently of the handle 11. For example, the retracting and deploying mechanism can be detachably connected to the handle 11 through a snap structure, so that it can be quickly disassembled for cleaning or replacement after the operation. In addition, the retracting and deploying mechanism can also be fixed to the handle 11 through a magnetic adsorption structure, which is convenient for installation and disassembly while ensuring stability. This design not only improves the flexibility of use of the retracting and deploying mechanism, but also reduces the maintenance and replacement costs of the overall endoscope 10, thereby optimizing the utilization efficiency of medical resources.

[0023] Referring to Figure 1 , Figure 2 , the retracting and deploying mechanism includes a housing 100, a camera module 200, and a retracting and deploying member 300. The housing 100 serves as the installation basis for the camera module 200 and the retracting and deploying member 300, providing support and protection for each component, enabling them to be stably installed and realizing the retracting and deploying function. The camera module 200 can be received or released through the retracting and deploying member 300 to meet different usage requirements.

[0024] Among them, the housing 100 can be made of plastic or metal materials to achieve characteristics such as light weight and corrosion resistance while ensuring structural stability. Preferably, the housing 100 can be made of the same or similar materials as the handle 11 to enhance overall coordination, improve the holding feel, and reduce the seams between different materials after installation, thereby reducing the difficulty of cleaning and maintenance during use to a certain extent. In addition, the shape of the housing 100 can be optimized according to the shape of the handle 11 so that it can fit well with the handle 11 after installation, reduce additional protrusions, and improve the comfort and stability of operation.

[0025] Referring to Figure 2 , Figure 3 , in some solutions, an outlet 110 for the entry and exit of the imaging module 200 is provided on the housing 100. During use, the imaging module 200 can enter or exit the housing 100 through the outlet 110 under the drive of the retractable member 300 to meet different usage requirements. For example, when the imaging module 200 is needed for imaging, the imaging module 200 can extend from the inside of the housing 100 to the distal end of the instrument tube 12 to provide clear image support. After use, the imaging module 200 can be retracted into the housing 100 through the outlet 110 to reduce the exposed area and the risk of contamination.

[0026] To optimize the retraction and extension effect of the imaging module 200, a guiding structure, such as a flexible flap or a guiding chute, can be provided at the edge of the outlet 110 to keep the imaging module 200 on a stable trajectory during entry and exit, avoiding shaking or deviation. In addition, the size of the outlet 110 can be designed to match the specifications of the imaging module 200 to ensure that the imaging module 200 can pass through smoothly and form a certain sealing effect after retraction to reduce the entry of external pollutants.

[0027] In some designs, the outlet 110 can also be equipped with a sealing member, such as an elastic sealing ring or a dust-proof film, to cover the outlet 110 in the non-use state, thereby further reducing the impact of the external environment on the internal structure of the housing 100. This sealing structure can automatically open when the imaging module 200 extends and automatically close when the imaging module 200 is retracted, thus achieving a balance between convenience and protection effect.

[0028] The imaging module 200 includes a cable 210 and a shooting member 220. The cable 210 is used to supply electrical energy to the shooting member 220 and transmit the collected image signals to the backend host for processing and display. In a specific application, the shooting member 220 includes a camera and a light source. The camera is responsible for capturing and collecting image data, and the light source provides illumination for the shooting area to improve the imaging quality and make the collected images clearer.

[0029] To improve the stability of image acquisition, the camera can use a high-resolution sensor to obtain more detailed image information. At the same time, the light source can use an LED array or fiber optic lighting to provide uniform lighting conditions and reduce the interference of shadows and noise. In addition, the illuminance of the light source can be adjusted according to actual needs, such as by adjusting the supply voltage or using a controllable light source structure, to adapt to different usage environments.

[0030] To optimize the service life and reliability of the cable 210, the outside of the cable 210 can be coated with a flexible protective layer to improve its tensile resistance and anti-twist ability, and avoid damage during multiple winding and unwinding processes. At the same time, the material of the cable 210 can be selected as a highly flexible wire to adapt to frequent bending operations and ensure the stability of signal transmission. In some designs, the cable 210 can also be provided with an additional shielding layer to reduce the impact of external electromagnetic interference on the quality of the image signal, thereby improving the clarity and stability of imaging.

[0031] In some solutions, the winding and unwinding member 300 is used to drive the imaging module 200 in and out of the outlet 110, so that the shooting member 220 can be switched between the storage state and the shooting state. Among them, when the shooting member 220 is in the storage state, the shooting member 220 is stored in the housing 100; when the shooting member 220 is in the shooting state, the shooting member 220 extends out of the housing 100 and is used to be fixed at the distal end of the instrument tube 12, so that it can collect in-vivo image information.

[0032] To ensure the stability of the shooting member 220 in the shooting state, various fixing methods can be used, such as clamping, bonding or other detachable connection structures. For example, the clamping method can be realized through an elastic snap structure for quick installation and disassembly, while the bonding method can use a medical-grade biocompatible adhesive to ensure the fixing reliability and be removable when needed. In addition, the magnetic adsorption structure is also one of the optional solutions. The shooting member 220 is stably connected through the adsorption of magnets and is easy to separate quickly during recovery.

[0033] During use, since the shooting member 220 is fixed at the distal end of the instrument tube 12, it can penetrate deep into the body to the target area along with the instrument tube 12, providing real-time image support for doctors and assisting in operations. After the inspection or treatment is completed, the shooting member 220 can be disassembled from the distal end of the instrument tube 12 and stored inside the housing 100 together with the cable 210, and then recovered and disinfected. Since the pollution of the imaging module 200 is mainly concentrated on the outer surface, only the outer surface needs to be disinfected after recovery to meet the requirements of repeated use, thereby reducing the disinfection difficulty, reducing medical costs, and improving resource utilization.

[0034] According to an optional embodiment, referring to Figure 3 、 Figure 4, the housing 100 is provided with a receiving cavity 120 for accommodating the imaging module 200. The winding and unwinding member 300 is rotatably arranged along a first axis in the receiving cavity 120 and is rotatably arranged within the housing 100. When the winding and unwinding member 300 rotates, at least a part of the imaging module 200 can be driven to wind around the winding and unwinding member 300, so as to realize the accommodation and release of the imaging module 200.

[0035] Specifically, the winding and unwinding member 300 can adopt a rotating shaft structure, and a cable guiding structure 130 is provided on its outer peripheral surface to guide the cable 210 of the imaging module 200 to be wound orderly during the winding and unwinding process, avoiding knotting or excessive bending of the cable 210. The rotation of the winding and unwinding member 300 can be controlled by a spring reset mechanism, a friction adjustment mechanism or a driving component to ensure that the imaging module 200 has an appropriate damping effect when being released or accommodated, preventing damage caused by too fast release or affecting the smoothness of winding and unwinding due to too large resistance.

[0036] During use, the winding and unwinding member 300 can drive the imaging module 200 to be gradually released, so that the shooting member 220 extends out of the receiving cavity 120 through the outlet 110 and is fixed to the distal end of the instrument tube 12 to realize image acquisition. When the use is completed, the winding and unwinding member 300 rotates to drive the cable 210 of the imaging module 200 to wind back into the receiving cavity 120, so that the shooting member 220 is re-accommodated inside the housing 100, which is convenient for recycling and disinfection. This can not only improve the convenience of use of the winding and unwinding mechanism, but also effectively protect the imaging module 200 and the cable 210, extend the service life, and reduce the medical cost at the same time. In this embodiment, the first axis is the rotation axis of the winding and unwinding member 300.

[0037] According to an optional embodiment, referring to Figure 2 、 Figure 4 , the housing 100 is provided with a guiding structure 130 surrounding the winding and unwinding member 300, and the guiding structure 130 is used to guide the imaging module 200 in and out of the outlet 110. The guiding structure 130 can constrain the movement track of the cable 210 during the release or accommodation of the imaging module 200, so that it unfolds or winds along a predetermined path, improving the stability and reliability of winding and unwinding.

[0038] In practical applications, the guiding structure 130 can adopt the form of an annular baffle and is arranged around the winding and unwinding member 300. For example, the annular baffle can partially surround the outer periphery of the winding and unwinding member 300, so that the cable 210 remains in contact with the outer surface of the winding and unwinding member 300 when being released and is led out along a set track, thereby preventing the cable 210 from spreading disorderly in all directions during the release process, so that the cable 210 is constrained during the release process and avoids affecting the advancement of the imaging module 200 due to looseness.

[0039] By setting the guiding structure 130, it can not only ensure that the cable 210 of the camera module 200 is released along the set path, enabling the shooting member 220 to be smoothly pushed out from the outlet 110, but also effectively prevent the cable 210 from being excessively bent or wound, which may affect the winding and unwinding efficiency, thereby enhancing the stability and durability of the overall system.

[0040] According to an optional embodiment, referring to Figure 1 、 Figure 4 , the housing 100 is provided with a connecting wire 140 for connecting to the cable 210; a disconnection assembly 400 is provided between the cable 210 and the connecting wire 140, and the disconnection assembly 400 is used to disconnect or connect the connecting wire 140 and the cable 210. During the storage process of the camera module 200, the cable 210 will be stored in the housing 100 and wound around the winding and unwinding member 300, resulting in connection problems between the connecting wire 140 and the cable 210. By setting the disconnection assembly 400, when it is necessary to release or store the camera module 200, the connection between the connecting wire 140 and the cable 210 can be disconnected, thereby avoiding the influence of cable 210 winding on the storage effect during the winding and unwinding process.

[0041] When the camera module 200 is fully released and fixed at the distal end of the instrument tube 12, the cable 210 and the connecting wire 140 can be reconnected through the disconnection assembly 400 to ensure that the image can be smoothly transmitted to the host device for processing. This design makes the winding and unwinding of the cable 210 more convenient during the winding and unwinding process, avoiding transmission interruption or operation difficulties caused by cable 210 winding.

[0042] According to an optional embodiment, the disconnection assembly 400 includes a plug 410 and a socket 420. The plug 410 is connected to one of the connecting wire 140 and the cable 210, and the socket 420 is connected to the other; when the shooting member 220 is in the shooting state, the plug 410 and the socket 420 are cooperatively connected to ensure that the image can be transmitted from the camera module 200 to the host device through the cable 210.

[0043] During the implementation process, when the camera module 200 is in the storage state, the plug 410 and the socket 420 are disconnected through the disconnection assembly 400 to avoid unnecessary winding or interference between the cable 210 and the connecting wire 140. At this time, the cable 210 and the connecting wire 140 are in a disconnected state, facilitating the storage of the camera module 200 in the housing 100. When the camera module 200 is released and enters the shooting state, the plug 410 and the socket 420 are automatically or manually cooperatively connected to re - establish the transmission channel between the cable 210 and the connecting wire 140, thereby ensuring that the image information can be smoothly transmitted to the host device for subsequent processing and display.

[0044] The design of this plug 410 and socket 420 has good simplicity and reliability, avoiding other complex connection methods, and ensuring a stable and reliable image transmission link during the use of the camera module 200.

[0045] According to an optional embodiment, referring to Figure 4 、 Figure 5 , a movable member 310 is slidably disposed along the first axis direction on the housing 100, at least a part of the movable member 310 is located outside the housing 100, one of the plug 410 and the socket 420 is disposed on the movable member 310, and the other is disposed on the housing 100. In the first axis direction, the plug 410 and the socket 420 are disposed opposite to each other so that the plug 410 and / or the socket 420 can cooperate with each other when moving in the first axis direction. By providing the movable member 310, an operator can conveniently manually control the connection relationship between the plug 410 and the socket 420. Since at least a part of the movable member 310 is located outside the housing 100, the operator can directly touch and operate the movable member 310, which can improve the convenience and efficiency of the operation. Especially during the retraction and extension process of the camera module 200, the operator can slide the movable member 310 to quickly connect and disconnect the plug 410 and the socket 420, thereby avoiding complex operation steps and improving the smoothness of the operation.

[0046] In addition, the design of the movable member 310 can ensure the stable cooperation between the plug 410 and the socket 420, avoiding poor contact or loose connection during use. This structure not only optimizes the use experience of the camera module 200, but also improves the reliability of the camera module 200 in different working states.

[0047] In this embodiment, one end of the cable 210 is connected to the shooting member 220, and the other end passes through the retracting and extending member 300 and is finally connected to the socket 420. Since the movement of the movable member 310 will cause the socket 420 to displace relative to the retracting and extending member 300, a part of the cable 210 is reserved between the retracting and extending member 300 and the socket 420 to adapt to the movement of the movable member 310 and ensure that the cable 210 will not break or be damaged due to pulling during the movement.

[0048] For example, a flexible storage structure, such as an elastic bending area or a coiling mechanism, is provided in the reserved area of the cable 210, so that the cable 210 can naturally expand and contract with the movement of the movable member 310, thereby reducing the risk of the cable 210 being stressed. In addition, in order to improve the durability of the cable 210 under complex movement conditions, a highly flexible material can be selected and a wear-resistant coating can be added on the surface of the cable 210 to reduce the wear during long-term use.

[0049] In summary, by reasonably reserving the length of the cable 210, this solution enables it to adapt to the movement of the socket 420 relative to the winding and unwinding member 300, avoiding damage to the cable 210 caused by pulling or affecting its service life, thereby improving the reliability and durability of the entire endoscope 10 system.

[0050] According to an optional embodiment, referring to Figure 5 , Figure 6 , the movable member 310 is coaxially connected to the winding and unwinding member 300. The movable member 310 and the winding and unwinding member 300 are slidably engaged in the first axis direction, and the winding and unwinding member 300 and the movable member 310 are limitedly engaged in the rotation direction of the winding and unwinding member 300, so that the movable member 310 can drive the winding and unwinding member 300 to rotate. Through the movable member 310, not only can the winding and unwinding member 300 be driven to rotate to realize the storage and release of the imaging module 200, but also the mating relationship between the plug 410 and the socket 420 can be controlled by driving the sliding of the movable member 310 in the first axis direction.

[0051] Specifically, during use, when the operator rotates the movable member 310, the movable member 310 can drive the winding and unwinding member 300 to gradually release the imaging module 200. When the shooting member 220 is in the shooting state, the imaging module 200 can provide clear image data for the endoscope 10. After the imaging module 200 is completely released, the operator can slide the movable member 310 along the first axis direction, so that the plug 410 and the socket 420 are mated and connected to realize the image transmission function of the imaging module 200.

[0052] This design structure realizes precise control between the winding and unwinding member 300 and the imaging module 200. It can not only effectively store and release the imaging module 200, but also simplify the connection process between the plug 410 and the socket 420. By rotating the movable member 310 to control the rotation of the winding and unwinding member 300, the stable release and fixation of the imaging module 200 can be ensured; and by sliding the movable member 310, the mating of the plug 410 and the socket 420 can be carried out quickly and conveniently, improving the simplicity and efficiency of the overall operation. In addition, the cooperation between the movable member 310 and the winding and unwinding member 300 also ensures the stability and reliability of each component during operation, thereby improving the use effect and operation safety of the endoscope 10.

[0053] According to an optional embodiment, referring to Figure 5 , Figure 6, the plug 410 or the socket 420 is movably connected to the housing 100. The plug 410 is provided with a first magnet 411, and the socket 420 is provided with a second magnet 421 that cooperates with the first magnet 411. The first magnet 411 and the second magnet 421 are used to position each other when the plug 410 and the socket 420 are close. Since the magnets can attract each other, the first magnet 411 and the second magnet 421 can be made to face each other, effectively aligning the plug 410 and the socket 420.

[0054] This design utilizes the attractive force of the magnets to automatically align when the plug 410 and the socket 420 are approaching, thus ensuring that the plug 410 and the socket 420 can be successfully connected. This magnetic positioning structure enables the plug 410 and the socket 420 to be accurately docked during operation by the operator, avoiding the situation where the plug 410 and the socket 420 cannot be effectively connected through the movable member 310 due to offset. Through this mechanism, the connection process of the plug 410 and the socket 420 is more convenient and precise, reducing the operation difficulty and improving the reliability and usage efficiency of the overall system.

[0055] This design provides greater flexibility and simplicity in actual operation, especially during the quick connection and disconnection of the plug 410 and the socket 420. The magnetic guidance enables the plug 410 and the socket 420 to be naturally aligned when in contact, thus reducing the risk of errors or failures caused by improper manual operation.

[0056] For example, during the process of releasing the imaging module 200, due to possible errors or bending in the instrument tube 12, the cable 210 may not be fully released while the imaging part 220 has reached the distal end of the instrument tube 12. At this time, the plug 410 and the socket 420 may not be fully aligned. When the plug 410 and the socket 420 are driven to approach by the movable member 310, without magnetic positioning, the plug 410 and the socket 420 cannot be effectively docked. Through the mutual attraction of the first magnet 411 and the second magnet 421, the positions of the plug 410 and the socket 420 can be actively adjusted to ensure their precise docking, thus avoiding deviation or misalignment problems when the plug 410 and the socket 420 are connected.

[0057] Exemplarily, the number of the first magnets 411 can be set to two, and the number of the second magnets 421 matches that of the first magnets 411. To ensure the correct docking of the plug 410 and the socket 420 during use, the polarities of two adjacent first magnets 411 facing the second magnet 421 should be opposite. Such a design can avoid the situation of the plug 410 and the socket 420 being inserted in the wrong way, improve the reliability of the system, and simplify the operation steps of the user, making the plug 410 and the socket 420 more stable and convenient in actual use.

[0058] In some solutions, referring to Figure 5, Figure 6 The plug 410 is movably connected to the housing 100, and the socket 420 is connected to the movable member 310. Exemplarily, the plug 410 is connected to the housing 100 through the cable 210, enabling it to move relative to the housing 100 within a certain range. Since the cable 210 usually has a certain flexibility, when the plug 410 approaches the socket 420, the attraction between the first magnet 411 and the second magnet 421 can prompt the plug 410 to automatically adjust its position, aligning the plug 410 and the socket 420 for a smooth docking.

[0059] Furthermore, by controlling the length of the cable 210 between the plug 410 and the housing 100, the movement range of the plug 410 can be limited, allowing it to maintain an appropriate degree of freedom during the docking process while avoiding jamming caused by excessive deviation or uneven force. For example, the length of the cable 210 can be designed to only allow the plug 410 to adjust its position within a limited range, thereby enabling precise cooperation between the plug 410 and the socket 420 during docking and preventing connection failure due to excessive movement.

[0060] In addition, in some solutions, as shown in Figure xx, a limiting groove 150 is provided on the housing 100, and an abutting protrusion 412 cooperating with the limiting groove 150 is provided on the plug 410. The function of this structure is that during the docking process of the plug 410 and the socket 420, the abutting protrusion 412 can slide along the limiting groove 150 in the first axis direction, and after the plug 410 moves to an appropriate position, the abutting protrusion 412 abuts against the inner wall of the limiting groove 150 to limit further movement of the plug 410 in the first axis direction.

[0061] During the docking process, the socket 420 moves towards the plug 410 driven by the movable member 310. First, the action of the first magnet 411 and the second magnet 421 causes the plug 410 to adjust its position within a certain range to ensure alignment of the plug 410 and the socket 420. As the socket 420 continues to approach the plug 410, due to a certain docking resistance between the plug 410 and the socket 420, the socket 420 will further push the plug 410 to move in the first axis direction until the abutting protrusion 412 contacts the inner wall of the limiting groove 150. At this time, the plug 410 is fixed in an appropriate position, and the socket 420 successfully completes the docking.

[0062] When it is necessary to separate the plug 410 from the socket 420, the movable member 310 drives the socket 420 away from the plug 410. At the same time, under the cooperative action of the limiting groove 150 and the abutting protrusion 412, the plug 410 can separate from the socket 420 along a defined trajectory, avoiding unstable separation caused by loosening or uneven force of the plug 410.

[0063] In summary, by setting the limit structure and reasonably controlling the movement range of the plug 410, this solution can effectively improve the docking accuracy between the plug 410 and the socket 420, reduce the error during docking, and at the same time reduce problems such as jamming and misalignment, improving the reliability and usability of the device.

[0064] According to an optional embodiment, referring to Figure 3 、 Figure 5 , a rotating wheel 311 is provided on the part of the movable member 310 located outside the housing 100. The provision of the rotating wheel 311 enables the operator to more conveniently manually rotate the movable member 310. Through the rotating wheel 311, the operator can easily control the process of receiving and releasing the imaging module 200. The rotating wheel 311 provides an additional mechanical leverage effect, making the operation smoother and more efficient when precise adjustment of the position of the movable member 310 is required. At the same time, the design of the rotating wheel 311 facilitates operation in a narrow space, enhancing the comfort and convenience during use.

[0065] According to an optional embodiment, among the cable 210 and the shooting member 220, at least the outer surface of the shooting member 220 is coated with a protective film to seal at least the shooting member 220. By providing the protective film, it can effectively isolate the outer surface of the shooting member 220 from contact with the external environment, thereby reducing the risk of contamination of the shooting member 220. After use, a new protective film can be simply replaced, thus saving the time and cost of disinfection, and avoiding cumbersome cleaning of the shooting member 220, reducing the maintenance cost. Preferably, the protective film not only coats the outside of the shooting member 220, but also can wrap the cable 210 and the shooting member 220 together, thereby providing comprehensive protection to ensure the safety and cleanliness of the cable 210 and the shooting member 220 during use.

[0066] According to an optional embodiment, referring to Figure 2 、 Figure 3 , an air guide groove 221 is provided on the outer wall of the shooting member 220. The air guide groove 221 extends along the front-to-back direction of the shooting member 220 and penetrates the front and rear end faces of the shooting member 220. During use, a membrane sleeve 12b is provided outside the instrument tube 12. The membrane sleeve 12b is provided with an installation channel extending along the length direction of the instrument tube 12. The released imaging module 200 will be inserted into the membrane sleeve 12b. By providing the air guide groove 221, it can effectively guide the air flow when the imaging module 200 is inserted into the membrane sleeve 12b, preventing air from being blocked between the shooting member 220 and the end of the membrane sleeve 12b, thereby reducing the resistance to inserting the imaging module 200 and reducing the difficulty during the insertion process.

[0067] This design ensures that during use, the camera module 200 can be smoothly inserted into the membrane sleeve 12b without operational difficulties or displacement of the camera module 200 caused by air blockage. The provision of the air guide groove 221 not only improves the convenience of operation but also helps maintain the stability of the camera module 200, thereby ensuring the shooting quality and operational efficiency.

[0068] Exemplarily, the membrane sleeve 12b is a heat-sealable film sleeved outside the camera module 200. This heat-sealable film can shrink when heated and completely wrap the camera module 200 to isolate it from the outside world, thereby improving the hygiene and convenience of use. Through the shrinkage characteristic of the heat-sealable film, the membrane sleeve 12b can closely fit the camera module 200, reducing imaging interference caused by wrinkles or slack. Preferably, the material of the sleeve film is a transparent material to ensure that light can pass through smoothly, thereby avoiding affecting image acquisition. At the same time, the transparent material can reduce the adverse effects of light refraction or scattering, improve the clarity of imaging, and ensure the observation effect in clinical use.

[0069] The second aspect of this embodiment details an endoscope 10.

[0070] Refer to Figure 7 、 Figure 8 An endoscope 10 includes the retracting and extending mechanism in the above embodiment, and further includes a handle 11 and an insertion portion. The insertion portion includes an instrument tube 12, and a fixing member for fixing the shooting member 220 is provided at the distal end of the instrument tube 12. The fixing member is used to stably fix the shooting member 220 at the distal end of the instrument tube 12 when the shooting member 220 is in the shooting state, so as to ensure the stability and clarity of the image during the shooting process. The fixing member can adopt an integrally formed structure to reduce the assembly steps and improve the overall strength and stability; or it can adopt a detachable design to facilitate the replacement or adjustment of the fixing method of the shooting member 220 under different usage requirements.

[0071] During use, the retracting and extending mechanism releases the camera module 200, and the shooting member 220 is stabilized at the distal end of the instrument tube 12 through the fixing member, so that the shooting member 220 and the instrument tube 12 can be inserted into the body together. At the same time, after use, the shooting member 220 can be detached from the fixing member and recovered into the housing 100 through the retracting and extending mechanism for disinfection or replacement, thereby improving the reuse efficiency and safety of the endoscope 10.

[0072] In some solutions, refer to Figure 8 、 Figure 9 A traction wheel is provided on the handle 11, and the distal end of the instrument tube 12 can be controlled to bend through the traction wheel.

[0073] According to an alternative embodiment, refer to Figure 10 、 Figure 11, the instrument tube 12 is provided with a membrane sleeve 12b, and the membrane sleeve 12b is provided with an installation channel extending along the length direction of the instrument tube 12; the membrane sleeve 12b is used to communicate with the outlet 110, and the membrane sleeve 12b is at least a transparent structure near the distal end of the instrument tube 12; the fixing member is arranged on the membrane sleeve 12b. Exemplarily, the membrane sleeve 12b is used to communicate with the outlet 110 and is at least a transparent structure near the distal end of the instrument tube 12 to ensure the image acquisition quality of the shooting member 220 and at the same time enable light to pass through smoothly to provide a clear field of view.

[0074] Exemplarily, the membrane sleeve 12b is provided with a through port near the proximal side of the instrument tube 12, and the through port can be docked with the position of the outlet 110, so that the imaging module 200 can smoothly enter the through port through the outlet 110 when released and further enter the inside of the membrane sleeve 12b along the channel. In order to optimize the entry process of the imaging module 200, the diameter of the membrane sleeve 12b is larger than the size of the cable 210 or the shooting member 220 to provide sufficient space, so that the imaging module 200 can more easily enter the membrane sleeve 12b, reduce jamming or frictional resistance, and improve the release efficiency.

[0075] Since the membrane sleeve 12b is made of a relatively soft material, during the process of inserting the instrument tube 12 into the body, the membrane sleeve 12b can naturally fit the outer wall of the instrument tube 12, so that the overall size of the insertion part of the endoscope 10 will not increase too much. This can not only ensure the normal insertion of the instrument tube 12, but also reduce the additional expansion pressure on the patient's tissue, improving the comfort and safety of use. In addition, the transparent structure of the membrane sleeve 12b can also reduce the imaging interference caused by light reflection or refraction to a certain extent, thereby optimizing the image quality.

[0076] In summary, by setting the membrane sleeve 12b and providing a through port on its proximal side, the imaging module 200 can smoothly enter the inside of the membrane sleeve 12b. At the same time, by utilizing the flexible material characteristics of the membrane sleeve 12b, it fits the instrument tube 12 during the insertion process, thereby realizing the optimization of the overall size of the endoscope 10, which helps to improve the operability and imaging quality of the instrument.

[0077] In some solutions, in order to improve the convenience of docking the through port with the outlet 110, a first quick connector is arranged at the position of the through port, and a second quick connector cooperating with the first quick connector is arranged at the position of the outlet 110. Through this structural design, the through port and the outlet 110 can be quickly and stably connected, ensuring that the imaging module 200 smoothly enters the inside of the membrane sleeve 12b when released and reducing the complexity of the connection operation.

[0078] Exemplarily, the first quick connector can adopt a snap type, a threaded type or a magnetic attraction type structure to adapt to different usage requirements. Among them, the snap type quick connector can be quickly fixed by pressing or rotating, the threaded type quick connector provides more reliable sealing performance through screwing, while the magnetic attraction type quick connector uses magnetic force to achieve quick docking and allows a small angle adjustment to a certain extent to improve the smoothness of docking.

[0079] During use, when it is necessary to release the camera module 200, the second quick connector can cooperate with the first quick connector to form a stable communication channel between the through port and the outlet 110, ensuring that the camera module 200 smoothly enters the inside of the membrane sleeve 12b. In addition, when it is necessary to replace the membrane sleeve 12b or perform cleaning and maintenance, the first quick connector and the second quick connector can be quickly disassembled, improving the convenience of operation and reducing the impact on the overall structure of the device.

[0080] Through the above design, this solution can effectively optimize the release process of the camera module 200, reduce the abnormal release of the imaging module caused by unstable channel connection, and at the same time facilitate maintenance and replacement, improving the overall usage experience of the endoscope 10.

[0081] Exemplarily, referring to Figure 12 、 Figure 13 , the fixing member is located inside the membrane sleeve 12b and is arranged at a position of the membrane sleeve 12b close to the distal end of the instrument tube 12. Through this design, after the camera module 200 is released, the distal end of the shooting member 220 can be fixed at the distal end of the instrument tube 12, keeping it in a relatively stable state with the insertion part, so as to facilitate the camera module 200 and the insertion part to enter the body together, improving the stability and controllability of the operation.

[0082] During use, the fixing member can adopt various structural forms, such as an annular clamping structure, a limiting support structure or an elastic snap structure, to adapt to different usage requirements. Among them, the annular clamping structure can wrap the shooting member 220 with an elastic material to achieve flexible fixation; the limiting support structure restricts the radial or axial displacement of the shooting member 220 through multiple limiting protrusions to ensure its stability; the elastic snap structure provides higher convenience during installation and disassembly through snap-fit.

[0083] In addition, the material of the fixing member can be selected from medical-grade silicone, elastic plastic or metal brackets to meet the hygiene and safety requirements of the endoscope 10 during in-vivo use while ensuring the fixing effect. For example, the silicone material can provide good flexibility and buffering effect, reducing friction and irritation to tissues; the metal bracket can provide strong supporting force and is suitable for higher-precision fixing requirements.

[0084] According to an optional embodiment, referring to Figure 13 、Figure 14 The fixing member includes a spring piece 12a, which is fixed to the instrument tube 12. The spring piece 12a has a first state and a second state. The spring piece 12a can be elastically deformed from the first state to the second state under the action of an external force. When the spring piece 12a is in the first state, it can fix the shooting member 220; when the spring piece 12a is in the second state, it can release the shooting member 220.

[0085] Exemplarily, the spring piece 12a is an annular spring piece 12a. When the spring piece 12a is in the first state, the internal space thereof is smaller than the size of the photographing member 220, so that the photographing member 220 can be subjected to a certain clamping force and remain fixed. When the spring piece 12a is in the second state, the internal space thereof increases, thereby allowing the photographing member 220 to pass freely, thereby achieving the release or installation of the photographing member 220.

[0086] The material of the spring piece 12a can be elastic metal (such as stainless steel, nickel-titanium alloy) or highly elastic plastic (such as polyetheretherketone PEEK) to ensure that it has good resilience and durability and can maintain stable clamping performance after repeated use. In addition, in order to enhance the friction and improve the reliability of the structure, an anti-slip texture or a friction enhancing material can be added to the surface of the spring piece 12a to reduce accidental loosening caused by vibration or impact, so that the shooting member 220 is more stable after being fixed.

[0087] In the specific use process, the release and fixation operation of the camera module 200 is relatively simple. The shooting member 220 moves to the far end inside the film sleeve 12b until it reaches the position of the spring sheet 12a. At this time, the operator can pinch the spring sheet 12a with his hand to deform the spring sheet 12a from the first state to the second state, thereby expanding the internal space and allowing the shooting member 220 to pass through the spring sheet 12a smoothly. When the shooting member 220 continues to move to the far end of the film sleeve 12b and abuts against the far end surface of the film sleeve 12b, the spring sheet 12a is released, and the spring sheet 12a returns to the first state under the action of the rebound force, and clamps the shooting member 220 to fix it, thereby realizing the stable fixation of the shooting member 220 at the far end of the insertion part.

[0088] Through this solution, the rapid installation and release of the camera 220 can be achieved without adding additional complex structures. The adaptive clamping design of the annular spring 12a is not only conducive to improving the fixing effect, but also can adapt to different sizes of camera 220, making the fixing solution more versatile and operable. In addition, combined with the flexible characteristics of the film sleeve 12b, this solution can also reduce the shaking of the camera 220 when it moves in the body to a certain extent, further improving the stability and imaging quality of the endoscope 10 system.

[0089] As described above, it is only the specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention can easily think of changes or substitutions, which should all be covered within the protection scope of the present invention.

Claims

1. A retractable mechanism, applied to an endoscope (10), the endoscope (10) comprising a handle (11) and an instrument tube (12), characterized in that: The retractable mechanism comprises: A housing (100) is detachably mounted on the handle (11), and the housing (100) is provided with an outlet (110); A camera module (200), the camera module (200) comprising a cable (210) and a shooting component (220) arranged at a distal end of the cable (210); and A retractable member (300) is disposed on the housing (100) and is used to drive the camera module (200) to enter and exit the outlet (110), so that the shooting member (220) switches between a retracted state and a shooting state; Wherein, when the photographing member (220) is in the stored state, the photographing member (220) is stored in the housing (100); when the photographing member (220) is in the photographing state, the photographing member (220) extends out of the housing (100) and is used to be fixed to the distal end of the instrument tube (12).

2. A retractable mechanism according to claim 1, characterized in that: The housing (100) is provided with a housing cavity (120) for accommodating the camera module (200); the retractable member (300) is rotatably disposed in the housing cavity (120) along a first axis; the retractable member (300) is rotatably disposed in the housing (100); and when the retractable member (300) is rotated, it can drive at least a portion of the camera module (200) to be wound around the retractable member (300).

3. A retractable mechanism according to claim 2, characterized in that: The housing (100) is provided with a guide structure (130) surrounding the retractable member (300), the guide structure (130) being used to guide the camera module (200) to enter and exit the outlet (110); And / or, the housing (100) is provided with a connecting line (140), the connecting line (140) being used to be connected to the cable (210); a disconnecting component (400) is provided between the cable (210) and the connecting line (140), the disconnecting component (400) being used to disconnect or connect the connecting line (140) to the cable (210).

4. A retractable mechanism according to claim 3, characterized in that: The disconnect assembly (400) comprises a plug (410) and a socket (420), wherein the plug (410) is connected to one of the connection line (140) and the cable (210), and the socket (420) is connected to the other; when the shooting element (220) is in a shooting state, the plug (410) is connected in cooperation with the socket (420).

5. A retractable mechanism according to claim 4, characterized in that: The housing (100) is provided with a movable member (310) slidably along the first axis direction, at least a portion of the movable member (310) is located outside the housing (100), one of the plug (410) and the socket (420) is provided on the movable member (310), and the other is provided on the housing (100); In the direction of the first axis, the plug (410) and the socket (420) are arranged opposite each other, so that the plug (410) and / or the socket (420) can cooperate with each other when moving in the direction of the first axis.

6. A retractable mechanism according to claim 5, characterized in that: The movable member (310) is coaxially connected to the retractable member (300); the movable member (310) and the retractable member (300) are slidably matched in the direction of the first axis; the retractable member (300) and the movable member (310) are limitedly matched in the rotation direction of the retractable member (300), so that the movable member (310) can drive the retractable member (300) to rotate; And / or, the plug (410) or the socket (420) is movably connected to the housing (100), the plug (410) is provided with a first magnet (411), and the socket (420) is provided with a second magnet (421) that matches the first magnet (411), and the first magnet (411) and the second magnet (421) are used to position the plug (410) and the socket (420) relative to each other when they are close to each other; And / or, a portion of the movable part (310) located outside the housing (100) is provided with a rotating wheel (311).

7. The retractable mechanism according to claim 1, characterized in that: Among the cable (210) and the photographing component (220), at least the exterior of the photographing component (220) is coated with a protective film so as to seal at least the photographing component (220); And / or, an outer wall of the shooting member (220) is provided with an air guide groove (221), the air guide groove (221) extending from the front end to the rear end of the shooting member (220) and penetrating the front end and rear end surfaces of the shooting member (220).

8. An endoscope (10), characterized in that: It comprises the retractable and retractable mechanism according to any one of claims 1 to 7, and further comprises a handle (11) and an instrument tube (12), wherein a fixing member for fixing the shooting member (220) is provided at the distal end of the instrument tube (12).

9. An endoscope (10) according to claim 8, characterized in that: The instrument tube (12) is provided with a membrane sleeve (12b), and the membrane sleeve (12b) is provided with a mounting channel extending along the length direction of the instrument tube (12); the membrane sleeve (12b) is used to communicate with the outlet (110), and the membrane sleeve (12b) is a transparent structure at least at a position close to the far end of the instrument tube (12); and the fixing piece is arranged on the membrane sleeve (12b).

10. An endoscope according to claim 8, characterized in that: The fixing member comprises a spring piece (12a), the spring piece (12a) being fixed to the instrument tube (12), the spring piece (12a) having a first state and a second state, and the spring piece (12a) being able to elastically deform from the first state to the second state under the action of an external force; Wherein, when the spring piece (12a) is in a first state, it is capable of fixing the photographing component (220); and when the spring piece (12a) is in a second state, it is capable of releasing the photographing component (220).

Images