Expandable anoscope with light source

Abstract

The invention relates to the technical field of medical anoscopes, in particular to an expandable anoscope with a light source, which comprises an elastic lens barrel, a lens barrel handle, an expansion clamp, a buried lighting LED (light-emitting diode), a reusable fully-sealed battery box, a plug and a push button, the elastic lens barrel is of a nested winding drum structure, one end of the elastic lens barrel is connected with the lens barrel handle, the elastic lens barrel is provided with a lens barrel self-locking buckle position, the expansion clamp drives the elastic lens barrel to expand through positioning fit, the reusable fully-sealed battery box is connected with the lens barrel handle through magnetic attraction to supply power to the LED, and the plug and the push button are combined to be arranged in the contracted elastic lens barrel. Tissue stimulation during insertion can be reduced to improve the comfort of a patient, external assistance is not needed, controllable expansion and stable locking can be achieved, operation is more labor-saving, and the problems that a traditional anoscope is inconvenient to illuminate and low in insertion comfort are effectively solved.

Description

Technical Field

[0001] This invention relates to the field of medical anoscope technology, specifically an expandable anoscope with its own light source. Background Technology

[0002] Anoscopes, commonly used by proctologists in medical examinations, play a crucial role in the diagnosis of anorectal diseases. However, traditional anoscopes have significant limitations. They lack their own illumination source, forcing doctors to rely on external lighting to ensure a clear view of lesions. This not only makes it difficult to precisely match the illuminated area to the actual examination area but also requires additional medical staff to adjust the light source position, resulting in a cumbersome and inflexible procedure. Furthermore, the diameter of the anoscope barrel in standard anoscopes used for observation is fixed. To meet the basic requirements of a wide field of view in clinical examinations, the barrel diameter is usually set relatively large. This design feature causes significant contact and friction between the anoscope and human tissue during insertion, leading to considerable discomfort and negatively impacting the patient's experience.

[0003] Existing anoscopes suffer from several shortcomings. First, they lack a built-in lighting system, relying entirely on external light sources. This compromises the accuracy and stability of the illumination, increases reliance on manual labor, reduces examination efficiency, and hinders ease of operation. Second, their tube design is inadequate in terms of patient comfort. Fixed-diameter tubes, designed to meet the required field of view, are often too large, resulting in significant stimulation of the anus and intestinal tissues during insertion and generally lower patient comfort. This makes them unsuitable for different patient conditions and examination scenarios. Furthermore, even some existing expandable anoscopes with built-in light sources fail to fully address the core pain points of traditional anoscopes. There is still room for improvement in areas such as the stability of expansion adjustment, the convenience and reusability of the power supply, and the overall ease of operation. These limitations prevent them from fully meeting the demands for efficient, comfortable, and convenient anoscope use in clinical practice. Therefore, there is an urgent need to develop an expandable anoscope with a built-in light source to overcome these shortcomings in current applications. Summary of the Invention

[0004] The purpose of this invention is to provide an expandable anoscope with its own light source to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: An expandable anoscope with its own light source includes an elastic tube, a tube handle, dilators, an embedded LED, a reusable fully sealed battery box, a plug, and a push button. One end of the elastic lens barrel is connected to the lens barrel handle, and the elastic lens barrel has an expansion structure that can be unfolded in a preset direction. The expander clamp can be positioned and connected to the lens barrel handle to drive the elastic lens barrel to expand. The elastic lens barrel is provided with a lens barrel self-locking buckle for locking after the elastic lens barrel expands; The embedded LED lighting is located at the front end of the lens barrel handle and is electrically connected to the lens barrel handle; The endoscope handle is made of transparent or semi-transparent medical resin material; The reusable, fully sealed battery box can be detachably connected to the lens barrel handle to power the embedded lighting LED; The plug and push button can be combined and installed inside the retracted elastic lens tube.

[0006] As a further aspect of the present invention: the elastic lens tube is a nested roll structure formed by unidirectional winding of a single layer of cylindrical material along the axial direction, and when not unfolded, it adopts 2-3 layers of tightly nested winding.

[0007] As a further aspect of the present invention: the expander clamp is provided with an expander clamp positioning tenon, and the lens barrel handle is provided with a positioning hole. The expander clamp achieves positioning connection with the lens barrel handle through the cooperation of the expander clamp positioning tenon and the positioning hole.

[0008] As a further aspect of the present invention: the expansion clamp also includes an expansion rod and an expansion rod sleeve. There are two expansion rods, which are symmetrically distributed. The expansion rod sleeve is coaxially sleeved on the outside of the expansion rod and can roll around the expansion rod.

[0009] As a further aspect of the present invention: the self-locking buckle of the lens barrel includes a self-locking groove and a self-locking tenon; The self-locking grooves are continuously distributed along the circumference of the elastic lens barrel, and the self-locking tenons are adapted to the self-locking grooves.

[0010] As a further aspect of the present invention: the reusable fully sealed battery box is provided with a strong magnet for the battery box, and the lens barrel handle is provided with a strong magnet for the handle. The reusable fully sealed battery box achieves a detachable connection with the lens barrel handle through the attraction between the strong magnet for the battery box and the strong magnet for the handle. The distribution of the magnetic poles of the magnets achieves automatic positioning of the positive and negative terminals of the battery, preventing reverse connection of the power supply.

[0011] As a further aspect of the present invention: the reusable fully sealed battery box is provided with a positive battery box contact and a negative battery box contact, and the lens barrel handle is provided with a positive handle contact and a negative handle contact. The positive contact of the battery box is in contact with the positive contact of the handle, and the negative contact of the battery box is in contact with the negative contact of the handle, so as to form a circuit for supplying power to the embedded lighting LED.

[0012] As a further aspect of the present invention: the embedded lighting LED is disposed at the handle of the lens barrel, and a miniature focusing lens is provided on the outside.

[0013] As a further aspect of the present invention: the plug is provided with a snap-fit ​​groove and a positioning groove, and the push button is provided with an elastic snap and a positioning protrusion; The plug and push button are assembled together through the cooperation of the snap-fit ​​groove and the elastic snap, and the positioning groove and the positioning protrusion.

[0014] As a further aspect of the present invention: the elastic lens tube is made of medical-grade high-elasticity silicone rubber or medical-grade polyurethane elastomer.

[0015] Compared with the prior art, the beneficial effects of the present invention are: 1. Improved insertion comfort: The outer diameter of the flexible endoscope tube in the retracted state is smaller than that of the traditional anoscope. Combined with the plug and push button design, the contact area between the flexible endoscope tube and human tissue is greatly reduced during insertion, reducing stimulation to human tissue during insertion and significantly improving the patient's insertion comfort. This solves the problem of low insertion comfort caused by the fixed and large diameter of the traditional anoscope. 2. Achieve controllable expansion and stable locking: The expansion rod of the expander forceps can apply a uniform circumferential expansion force to the elastic endoscope tube. Combined with the roll structure of the elastic endoscope tube, the diameter of the elastic endoscope tube can be controlled and adjusted to meet the field of vision requirements in different examination scenarios. At the same time, the self-locking buckle of the endoscope tube can lock itself after the elastic endoscope tube expands to the predetermined size, effectively preventing the endoscope tube from springing back and ensuring the stability of the endoscope tube during the examination, providing medical staff with a continuous and clear field of vision. 3. Convenient self-illuminating light source: The magnetic power supply design of the embedded LED lighting and reusable fully sealed battery box enables the anoscope to have its own lighting function, eliminating the need for external light sources and additional personnel to adjust the light source position, thus simplifying the examination process; the fully sealed structure of the reusable fully sealed battery box ensures that it can be sterilized and reused, reducing the cost of use, while the light from the embedded LED lighting can be concentrated to cover the inside of the scope tube, improving the clarity of lesion observation; 4. Effortless and convenient operation: The dilator sleeve transforms the moving friction between the elastic endoscope tube wall and the dilator rod into rolling friction, greatly reducing the resistance of the dilation operation and making it easier for medical staff to dilate the endoscope tube; the connection and operation logic of each component is simple and clear, and medical staff can quickly master the use method, improving the overall convenience and efficiency of anoscopy and effectively solving many inconveniences in the use of traditional anoscopes. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the expandable anoscope with built-in light source in an embodiment of the present invention; In this diagram, A is a schematic diagram of the flexible lens barrel and the stopper separated, and B is a schematic diagram of the flexible lens barrel and the stopper combined.

[0017] Figure 2 This is a schematic diagram of the nested roll structure of the elastic lens tube in an embodiment of the present invention.

[0018] Figure 3 This is a schematic diagram comparing the contracted state S and the expanded state K of the elastic lens barrel in an embodiment of the present invention.

[0019] Figure 4 This is a schematic diagram showing the details of the self-locking buckle structure of the lens barrel in an embodiment of the present invention.

[0020] Figure 5 This is a schematic diagram of the combined connection structure of the plug and the push button in an embodiment of the present invention.

[0021] Figure 6 This is a schematic diagram showing the structure details of a reusable, fully sealed battery box in an embodiment of the present invention.

[0022] Figure 7 This is a schematic diagram of the structure of the mating part between the lens barrel handle and the reusable fully sealed battery box in an embodiment of the present invention.

[0023] Figure 8 This is a schematic diagram of the assembly structure of the clamp, the elastic lens barrel, and the lens barrel handle in an embodiment of the present invention.

[0024] Figure 9 This is a schematic diagram of the working state of the expansion clamp driving the elastic lens barrel expansion in an embodiment of the present invention.

[0025] Figure 10 This is a schematic diagram showing the details of the expansion clamp structure in an embodiment of the present invention.

[0026] Figure 11 This is a schematic diagram of the fit between the expansion clamp positioning tenon and the lens barrel handle positioning hole in an embodiment of the present invention.

[0027] In the diagram: 1-elastic lens barrel, 2-plug, 3-push button, 4-lens barrel handle, 5-self-locking buckle of expanded lens barrel, 5-1-self-locking groove, 5-2-self-locking tenon, 6-embedded LED lighting, 7-reusable fully sealed battery box, 8-1-positive contact of battery box, 8-2-positive contact of handle, 9-1-negative contact of battery box, 9-2-negative contact of handle, 10-1-strong magnet of battery box, 10-2-strong magnet of handle, 11-expanding pliers, 11-1-positioning tenon of expander pliers, 11-2-expanding rod, 11-3-sleeve of expander rod, 12-positioning hole. Detailed Implementation

[0028] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. 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.

[0029] The specific implementation of the present invention will be described in detail below with reference to specific embodiments.

[0030] Please see Figures 1-11 This invention provides an expandable anoscope with its own light source, solving the problems of traditional anoscopes lacking built-in illumination, causing low patient comfort during insertion, and requiring additional personnel assistance. Through the coordinated operation of various components, the anoscope achieves expandability and adjustment, as well as built-in illumination, improving examination convenience and patient comfort. Details are as follows: I. Component composition and connection relationship; The expandable anoscope with its own light source of the present invention includes an elastic tube 1, a plug 2, a push button 3, a tube handle 4, an embedded LED 6, a reusable fully sealed battery box 7, and dilators 11. The connection relationship of each component and the corresponding technical effects are as follows: Plug 2 and push button 3: Plug 2 and push button 3 are separate combination structures. After the two are combined, their functions and structures are similar to those of the plug of a traditional anoscope. This combination design not only ensures compatibility with the operating habits of a traditional anoscope, but also reserves space for the subsequent insertion of dilator forceps 11. The plug 2 and push button 3 assembly can be inserted into the elastic tube 1 in the contracted state S. The outer diameter of the plug 2 is adapted to the outer diameter of the elastic tube 1 in the contracted state S, and the inner diameter of the plug 2 is smaller than the inner diameter of the elastic tube 1 in the contracted state S. This size fit can ensure that the assembly fits tightly with the elastic tube 1, maintain the compact shape of the elastic tube 1 in the contracted state S, and reduce resistance for subsequent insertion operations.

[0031] Elastic lens barrel 1 and lens barrel handle 4: The elastic lens barrel 1 is a structure with roll-up effect. One end of it is connected to the lens barrel handle 4. This connection method ensures that the elastic lens barrel 1 will not be relatively displaced from the lens barrel handle 4 during expansion and contraction, thus ensuring operational stability. The elastic endoscope tube 1 is provided with a self-locking buckle 5, which includes a self-locking groove 5-1 and a self-locking tenon 5-2. It is used to lock the elastic endoscope tube 1 after it expands, which can effectively prevent the elastic endoscope tube 1 from rebounding due to its own elasticity after expansion, and ensure a stable field of view during the inspection. The lens barrel handle 4 is provided with a positioning hole 12, which is used to cooperate with the expansion clamp 11 to achieve precise positioning and prevent the expansion clamp 11 from shifting during operation; The lens barrel handle 4 is also equipped with a positive contact 8-2, a negative contact 9-2, and a strong magnet 10-2. The positive contact 8-2 and the negative contact 9-2 form a power supply circuit with the embedded lighting LED 6, providing a circuit basis for the lighting function. The strong magnet 10-2 is used to fix the reusable fully sealed battery box 7, so as to realize the quick disassembly and stable fixation of the battery box.

[0032] Expansion forceps 11 and endoscope handle 4: The expansion forceps 11 is provided with an expansion forceps positioning tenon 11-1, an expansion rod 11-2 and an expansion rod sleeve 11-3. The expansion rod sleeve 11-3 is coaxially sleeved on the outside of the expansion rod 11-2 and can roll around the expansion rod 11-2. This design can transform the moving friction between the elastic endoscope tube 1 wall and the expansion rod 11-2 into rolling friction, greatly reducing the resistance of the expansion operation and making it easier for medical staff to operate. The expansion clamp 11 engages with the positioning hole 12 on the lens barrel handle 4 via the expansion clamp positioning tenon 11-1, thereby achieving a positioning connection with the lens barrel handle 4 and the elastic lens barrel 1. This positioning method ensures that the expansion rod 11-2 can accurately extend into the interior of the elastic lens barrel 1 and apply uniform circumferential expansion forces L1 and L2 to the inner wall of the elastic lens barrel 1, avoiding deformation or insufficient expansion of the elastic lens barrel 1 due to uneven expansion forces.

[0033] Reusable fully sealed battery box 7 and lens barrel handle 4: The reusable fully sealed battery box 7 contains a battery and has a positive contact 8-1, a negative contact 9-1 and a strong magnet 10-1 on the outside. The reusable fully sealed battery box 7 is fixed by the strong magnet 10-1 of the battery box and the strong magnet 10-2 of the handle on the lens barrel handle 4. This magnetic fixing method does not require additional fasteners, realizes the quick installation and removal of the battery box, and ensures stable contact of the contacts during power supply. The positive contact 8-1 of the battery box is in contact with the positive contact 8-2 of the handle, and the negative contact 9-1 of the battery box is in contact with the negative contact 9-2 of the handle, providing stable power to the embedded lighting LED6; In addition, the fully sealed structure of the reusable fully sealed battery box 7 ensures that it can withstand sterilization treatment, enabling reuse and reducing usage costs.

[0034] Embedded LED 6 and lens barrel handle 4: Embedded LED 6 is located at the front end of lens barrel handle 4 and is electrically connected to the positive contact 8-2 and negative contact 9-2 of the handle on lens barrel handle 4. It can be lit after being powered by the reusable fully sealed battery box 7. This setup allows light to be concentrated and cover the interior area of ​​the flexible endoscope tube 1, providing clear illumination for medical staff to observe lesions inside the patient's body. No additional personnel are needed to adjust the external light source, simplifying the examination process.

[0035] II. Work Process; The specific operating procedure and corresponding technical effects of the expandable anoscope with built-in light source of the present invention are as follows: Preliminary preparation and insertion: First, combine the plug 2 with the push button 3 to form a combination that functions the same as the plug of a traditional anoscope. This combination is simple to operate, conforms to the traditional usage habits of medical staff, and reduces the learning cost. The assembly is then inserted into the elastic tube 1 in the contracted state S. At this time, due to the roll-up effect, the outer diameter of the elastic tube 1 is significantly smaller than that of a traditional anoscope, which is usually 1 / 3 to 1 / 2 of the outer diameter of a traditional anoscope of the same specification. This can greatly reduce the resistance during insertion. Medical staff hold the endoscope handle 4 and slowly insert the elastic endoscope 1, which is equipped with the assembly, into the patient's body to the predetermined examination depth, usually 5-8cm. This depth can be controlled by the scale lines on the outer wall of the endoscope. During this process, the small outer diameter design of the elastic endoscope 1 in its contracted state S greatly reduces the contact area with human tissue, reduces stimulation to human tissue, and significantly improves the patient's insertion comfort. This solves the problem of low insertion comfort caused by the fixed and large diameter of traditional anoscopes.

[0036] Installation of expander 11 and expansion of lens barrel: After the flexible lens barrel 1 is inserted into place, pull out the push button 3 from the flexible lens barrel 1. The pull-out operation does not require complicated tools and is simple and convenient. Then, align the expansion clamp positioning tenon 11-1 of the expander 11 with the positioning hole 12 on the lens barrel handle 4 so that the expander 11, the lens barrel handle 4 and the flexible lens barrel 1 are positioned and fixed, ensuring that the expansion rod 11-2 of the expander 11 is accurately inserted into the flexible lens barrel 1. Medical staff squeeze the handle of the dilator forceps 11, and the dilator rod 11-2 applies a uniform circumferential expansion force L1 and L2 to the inner wall of the elastic endoscope tube 1, pushing the elastic endoscope tube 1 to gradually unfold in the opposite direction of the roll, thereby expanding the diameter D. During this process, the dilator sleeve 11-3 on the outside of the dilator rod 11-2 rolls around the dilator rod 11-2, changing the moving friction between the elastic endoscope tube 1 wall and the dilator rod 11-2 into rolling friction, which greatly reduces the resistance of the expansion operation, making it easier for medical staff to operate, while avoiding damage to the elastic endoscope tube 1 wall by moving friction and extending the single use time of the elastic endoscope tube 1.

[0037] Self-locking of the endoscope tube and removal of the plug 2: As the dilator forceps 11 continues to operate, the diameter of the elastic endoscope tube 1 gradually expands. When the inner diameter of the elastic endoscope tube 1 reaches the predetermined size that meets the needs of examination and observation, the elastic endoscope tube 1 switches to the expanded state K. At this time, the self-locking tenon 5-2 of the self-locking buckle 5 on the elastic endoscope tube 1 is embedded in the self-locking groove 5-1. The self-locking of the elastic endoscope tube 1 is achieved through the interlocking of the two, which effectively prevents the elastic endoscope tube 1 from rebounding due to its own elasticity after expansion, ensuring the stability of the endoscope tube during the examination and providing medical staff with a continuous and clear field of vision. After the elastic endoscope tube 1 is self-locked, the plug 2 can be easily removed from the elastic endoscope tube 1. At this time, the elastic endoscope tube 1 maintains a stable expansion state, providing sufficient field of view for lesion observation, which solves the problem of fixed field of view and inability to be adjusted according to needs in traditional anoscopes.

[0038] Light source activation and inspection: According to the inspection lighting requirements, the reusable fully sealed battery box 7 is placed close to the position of the handle 4 where the handle strong magnet 10-2 is located. Through the attraction between the battery box strong magnet 10-1 and the handle strong magnet 10-2, the reusable fully sealed battery box 7 is quickly fixed on the handle 4. At the same time, the positive contact 8-1 of the battery box is accurately connected with the positive contact 8-2 of the handle, and the negative contact 9-1 of the battery box is accurately connected with the negative contact 9-2 of the handle, forming a complete power supply circuit, and the embedded lighting LED 6 is lit up accordingly. The embedded LED 6 provides concentrated light coverage to the interior area of ​​the flexible endoscope tube 1, avoiding the problem of blurred vision caused by improper external light source angles, improving the clarity of lesion observation, and eliminating the need for additional personnel to adjust the light source position, thus simplifying the examination process and improving examination efficiency.

[0039] Post-use processing: After the examination is completed, the medical staff pinches the handle of the dilator forceps 11 in the opposite direction, causing the dilator rod 11-2 to contract towards the center, applying reverse pressure to the inner wall of the elastic endoscope tube 1, causing the self-locking tenon 5-2 to disengage from the self-locking groove 5-1, releasing the self-locking state of the elastic endoscope tube 1. The unlocking operation is simple and effortless, without complicated steps. Then, the dilator forceps 11 were removed, and the flexible endoscope tube 1 was pulled out of the patient's body. The flexible endoscope tube 1 is a single-use component and should be disposed of in accordance with medical waste regulations after use to effectively avoid cross-infection. The plug 2, push button 3, dilator forceps 11, reusable fully sealed battery box 7, and endoscope handle 4 are reusable components and must be sterilized according to medical standards, such as high-pressure steam sterilization at 121℃ for 15-20 minutes. After sterilization, check the structural integrity and normal function of each component, such as whether the dilator forceps 11 opens and closes smoothly, whether the embedded lighting LED 6 is lit, and whether the reusable fully sealed battery box 7 is properly sealed. These components are then kept in reserve for future use. This design takes into account both safety and cost-effectiveness.

[0040] It should be noted that, in this invention, unless otherwise explicitly specified and limited, the terms "sliding," "rotating," "fixed," and "equipped" should be interpreted broadly. For example, they can refer to welded connections, bolted connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0041] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An expandable anoscope with its own light source, characterized in that, Includes a flexible lens barrel, lens barrel handle, expander forceps, embedded LED lighting, reusable fully sealed battery box, plug, and push button; One end of the elastic lens barrel is connected to the lens barrel handle, and the elastic lens barrel has an expansion structure that can be unfolded in a preset direction. The expander clamp can be positioned and connected to the lens barrel handle to drive the elastic lens barrel to expand. The elastic lens barrel is provided with a lens barrel self-locking buckle for locking after the elastic lens barrel expands; The embedded LED lighting is located at the front end of the lens barrel handle and is electrically connected to the lens barrel handle; The endoscope handle is made of transparent or semi-transparent medical resin material; The reusable, fully sealed battery box can be detachably connected to the lens barrel handle to power the embedded lighting LED; The plug and push button can be combined and installed inside the retracted elastic lens tube.

2. The expandable anoscope with its own light source according to claim 1, characterized in that, The elastic mirror tube is a nested roll structure formed by unidirectional winding of a single layer of cylindrical material along the axial direction. When not unfolded, it adopts 2-3 layers of tightly nested winding.

3. The expandable anoscope with its own light source according to claim 1, characterized in that, The expander clamp is equipped with an expander clamp positioning tenon, and the lens barrel handle is provided with a positioning hole. The expander clamp achieves positioning connection with the lens barrel handle through the cooperation of the expander clamp positioning tenon and the positioning hole.

4. The expandable anoscope with its own light source according to claim 3, characterized in that, The expansion clamp also includes expansion rods and expansion rod sleeves. There are two expansion rods that are symmetrically distributed. The expansion rod sleeves are coaxially sleeved on the outside of the expansion rods and can roll around the expansion rods.

5. The expandable anoscope with its own light source according to claim 1, characterized in that, The self-locking buckle of the lens barrel includes a self-locking groove and a self-locking tenon; The self-locking grooves are continuously distributed along the circumference of the elastic lens barrel, and the self-locking tenons are adapted to the self-locking grooves.

6. The expandable anoscope with its own light source according to claim 1, characterized in that, The reusable fully sealed battery box is equipped with a strong magnet for the battery box, and the lens barrel handle is equipped with a strong magnet for the handle. The reusable fully sealed battery box achieves a detachable connection with the lens barrel handle through the attraction between the strong magnet for the battery box and the strong magnet for the handle. The distribution of the magnetic poles of the magnets achieves automatic positioning of the positive and negative terminals of the battery, preventing reverse connection of the power supply.

7. The expandable anoscope with its own light source according to claim 6, characterized in that, The reusable fully sealed battery box is provided with a positive battery box contact and a negative battery box contact, and the lens barrel handle is provided with a positive handle contact and a negative handle contact. The positive contact of the battery box is in contact with the positive contact of the handle, and the negative contact of the battery box is in contact with the negative contact of the handle, so as to form a circuit for supplying power to the embedded lighting LED.

8. The expandable anoscope with its own light source according to claim 1, characterized in that, The embedded lighting LED is located at the handle of the lens barrel, and a miniature focusing lens is provided on the outside.

9. The expandable anoscope with its own light source according to claim 1, characterized in that, The plug has a snap-fit ​​groove and a positioning groove, and the push button has an elastic snap and a positioning protrusion. The plug and push button are assembled together through the cooperation of the snap-fit ​​groove and the elastic snap, and the positioning groove and the positioning protrusion.

10. The expandable anoscope with its own light source according to claim 1, characterized in that, The elastic lens tube is made of medical-grade high-elasticity silicone rubber or medical-grade polyurethane elastomer.

Images