Adjustable anoscope with light source

Abstract

The invention discloses an adjustable anoscope with a light source in the technical field of surgical medical instruments. The adjustable anoscope comprises a lens barrel base; a plurality of transparent external expansion blocks are arranged on the lens cone base, the external expansion blocks are movably connected with the lens cone base, an operation handle is arranged on each external expansion block, and a lighting assembly is arranged on at least one external expansion block; a groove is formed in one end of at least one contact surface of the adjacent external expansion blocks, an elastic connecting piece is arranged in the groove, and the two ends of the elastic connecting piece are in sliding fit with the grooves of the adjacent external expansion blocks respectively; limiting mechanisms used for limiting one-way sliding of the elastic connecting pieces are further arranged in the grooves. According to the scheme, through the combined action of the elastic connecting piece and the limiting mechanism, the external expansion block can be automatically kept in an open state, a doctor does not need to apply force continuously, and therefore operation convenience can be improved, the operation difficulty and fatigue of the doctor can be reduced, and meanwhile preoperative examination and intraoperative operation can be facilitated.

Description

Technical Field

[0001] The present invention belongs to the technical field of surgical medical devices, and specifically relates to an adjustable anoscope with a light source. Background Art

[0002] Anoscopic examination is a commonly used medical examination method for observing the inside of the anus and rectum to diagnose various anorectal diseases such as hemorrhoids, anal fissures, rectal polyps, etc. This examination usually requires inserting an anoscope into the patient's anus and observing the lesions in different parts by adjusting the opening angle.

[0003] In the prior art during anoscopic examination, doctors usually need to continuously adjust and expand the inner wall of the anus to expand the direct vision field. However, due to the elasticity and softness of the inner wall of the anus, doctors need to frequently adjust the opening angle during the examination or operation to ensure a clear and comprehensive vision field. This not only increases the complexity of the operation but also prolongs the examination or operation time. When the doctor removes the opening force applied to the anoscope, the inner wall of the anus will quickly recover under its elastic action, causing the vision field to return to the state before opening. This means that doctors need to continuously maintain the opening angle, which undoubtedly increases the operation difficulty and fatigue.

[0004] In view of the deficiencies of the prior art, there is an urgent need for an adjustable anoscope with an adjustable opening angle that doctors can easily adjust according to actual needs without frequently manually expanding the inner wall of the anus. Summary of the Invention

[0005] To solve the above problems, the purpose of the present invention is to provide an adjustable anoscope with a light source, which can improve the operation convenience and reduce the operation difficulty and fatigue of doctors.

[0006] To achieve the above purpose, the technical solution of the present invention is as follows:

[0007] An adjustable anoscope with a light source includes a lens barrel base; a number of transparent outer expansion blocks are arranged on the lens barrel base, and the connection between the outer expansion blocks and the lens barrel base is a movable connection. Operating handles are arranged on the outer expansion blocks, and a lighting component is arranged on at least one of the outer expansion blocks; at least one contact surface end of adjacent outer expansion blocks is provided with a groove, and an elastic connecting piece is arranged in the groove. The two ends of the elastic connecting piece are respectively in sliding fit with the grooves of the adjacent outer expansion blocks; a limiting mechanism for restricting the one-way sliding of the elastic connecting piece is also arranged in the groove.

[0008] The beneficial effects of adopting the above scheme are as follows:

[0009] 1. In this solution, when the visual field range needs to be adjusted, the outer expansion block is opened outward by holding the operation handle. The elastic connecting piece gradually slides out of the groove and becomes the "bridge" between adjacent outer expansion blocks, thus expanding the inner wall of the anus. Then, the elastic connecting piece is restricted from retracting into the groove by the limiting mechanism. During the adjustment process, the doctor can free both hands at any time, and the limiting mechanism will automatically restrict the elastic connecting piece from rebounding.

[0010] By setting an operation handle on the outer expansion block, the doctor can easily adjust the opening degree of the outer expansion block by holding the operation handle, so as to adapt to the anal sizes and examination requirements of different patients. This design greatly simplifies the operation steps and improves the operation convenience.

[0011] 2. Traditional anoscope examinations require doctors to maintain a specific posture or exert force for a long time to keep the visual field clear, which often leads to doctor fatigue. In this solution, through the combined action of the elastic connecting piece and the limiting mechanism, the outer expansion block can automatically maintain the expanded state, and the doctor does not need to continuously apply force, thus significantly reducing the operation difficulty and fatigue.

[0012] 3. In this solution, through the design of the elastic connecting piece and the limiting mechanism in the groove, after the opening degree of the outer expansion block is adjusted, the elastic connecting piece can be automatically restricted by the limiting mechanism and will not rebound randomly. This not only ensures the stability of the examination but also avoids causing discomfort or injury to the patient due to the rebound of the outer expansion block during the examination.

[0013] Furthermore, the lighting assembly includes a light source and at least one optical fiber; the light source is located inside the operation handle, the optical fiber is arranged inside the outer expansion block, and the output end of the light source is connected to the optical fiber.

[0014] Beneficial effects: Integrating the light source inside the operation handle not only saves space but also makes the design of the entire anoscope more compact and integrated. This design improves the portability and use convenience of the anoscope. The optical fiber can transmit the light emitted by the light source to the outer expansion block, thereby illuminating the inside of the anus. Due to the transmission characteristics of the optical fiber, the light can be evenly distributed on the outer expansion block, providing a bright and uniform lighting effect, which helps the doctor observe the inside of the anus more clearly.

[0015] Furthermore, the limiting mechanism includes a ratchet protrusion and a limiting groove; the limiting groove is located inside the side wall of the groove, the ratchet protrusion is in sliding fit with the limiting groove, a spring is arranged between the limiting groove and the ratchet protrusion; several card slots are arranged on the side of the elastic connecting piece close to the limiting groove, and whenever the ratchet protrusion passes through the card slot unidirectionally, the ratchet protrusion engages with the card slot.

[0016] Beneficial effects: By adjusting the engaging position of the ratchet protrusions with different card slots, doctors can conveniently adjust the opening angle of the outer expansion block, thus adapting to the anal sizes and examination requirements of different patients. This design not only improves the adaptability of the anoscope but also enables doctors to more flexibly adjust the visual field range during the examination.

[0017] After the ratchet protrusions are engaged in the card slots, even if the external force applied by the doctor disappears, the elastic connecting piece will not be squeezed by the anal inner wall and retract into the groove by itself, thus ensuring the stability of the anoscope during the examination.

[0018] Furthermore, a reset assembly is provided on each of the outer expansion blocks; the reset assembly includes a reset piece and a switch; a reset groove is provided at one end of each outer expansion block close to the operating handle, the reset groove communicates with the limiting groove, the reset piece is slidably engaged with the reset groove, the switch is located on the surface of the outer expansion block, the switch is slidably engaged with the outer expansion block, and the switch is fixedly connected to the reset piece; an inclined groove is provided on one side of each ratchet protrusion close to the reset groove, and one end of the reset piece close to the inclined groove is slidably engaged with the inclined groove.

[0019] Beneficial effects: When it is necessary to reset the outer expansion block, only need to push the switch, the switch drives the reset piece to slide synchronously, and at the same time the reset piece moves against the inclined groove of the ratchet protrusion until the ratchet protrusion is pushed back into the limiting groove, so that the ratchet protrusion is separated from the card slot. When the card slot loses the restriction of the ratchet protrusion, the outer expansion block can be reset.

[0020] The introduction of the reset assembly makes it very simple and intuitive for doctors to reset the outer expansion block when needed. Just gently push the switch, and the switch will drive the reset piece to slide in the reset groove. Then, through the sliding cooperation between the reset piece and the inclined groove, the ratchet protrusion can be smoothly pushed back into the limiting groove from the card slot, realizing the rapid reset of the outer expansion block. This design greatly improves the operation convenience and efficiency.

[0021] Furthermore, an anti - detachment mechanism is provided on at least one of the outer expansion blocks; the anti - detachment mechanism includes a traction rope, a slider and a chute; a pipeline is communicated between the chute and the groove, a sealing ring is arranged in the pipeline, the slider is slidably engaged with the chute, both ends of the traction rope are fixedly connected to the elastic connecting piece and the slider respectively, and the traction rope passes through the sealing ring and is slidably engaged with the pipeline;

[0022] An elastic bladder layer is arranged on the outside of the lens barrel base, and a cavity is arranged inside the elastic bladder layer; the cavity is communicated with an air duct, and the air duct is communicated with the chute.

[0023] Beneficial effects: Through the connection of the traction rope and the elastic connecting piece, and the sliding of the slider in the chute, the anti - detachment mechanism realizes the response to the expansion action of the outer expansion block. When the doctor expands the outer expansion block, the slider moves and discharges the air in the chute into the cavity in the elastic bladder layer through the air duct, causing the elastic bladder layer to expand and closely adhere to the inner wall of the anus. This design effectively fixes the lens barrel base in the anus, preventing the lens barrel base from slipping out or moving due to external forces during the examination, thereby enhancing the stability of the examination.

[0024] Furthermore, a first tension spring for resetting the slider is also arranged in the chute.

[0025] Beneficial effects: The introduction of the first tension spring enables the slider to automatically return to the initial position when the outer expansion block is reset. This function not only simplifies the operation process but also improves the accuracy and efficiency of resetting.

[0026] Furthermore, second tension springs for resetting the elastic connecting piece are arranged in the grooves.

[0027] Beneficial effects: The introduction of the second tension spring enables the elastic connecting piece to automatically and accurately return to the initial position after the outer expansion block is unlocked. This function ensures the stability and reliability of the elastic connecting piece during continuous use, improving the accuracy and safety of anoscope examination.

[0028] During the operation process, the doctor does not need to manually adjust the position of the elastic connecting piece to ensure that it always remains in the correct position. This not only simplifies the operation process but also reduces the errors and risks that may be caused by improper operation.

[0029] Furthermore, from the end close to the lens barrel base to the end far from the lens barrel base, the cross - section of the outer expansion block gradually increases.

[0030] Beneficial effects: The outer expansion block is designed such that from the end close to the lens barrel base to the end far from the lens barrel base, the cross - section gradually increases, that is, it is in a trumpet shape. The trumpet - shaped outer expansion block can form a larger space after being expanded, providing a broader visual field range for the doctor and helping the doctor to observe the anus and the lower rectum more clearly.

[0031] Furthermore, a smooth protrusion is provided at the head of the lens barrel base.

[0032] Beneficial effects: The design of the smooth protrusion helps to reduce the friction between the head of the lens barrel base and the anus entrance, making the insertion of the anoscope smoother, reducing the pain and discomfort of the patient.

[0033] Furthermore, an adjustment knob is also arranged on the lens barrel base. The adjustment knob is electrically connected to the light source and is used to adjust the brightness and / or color temperature of the light source.

[0034] Beneficial effects: During the examination, doctors can easily adjust the brightness and color temperature of the light source by turning the knob according to actual needs. This not only helps doctors observe the conditions of the anus and the lower rectum more clearly, but also enables personalized light adjustment based on the specific conditions of the patient (such as the color of the inner wall of the anus and the degree of lesions), thereby improving the accuracy and flexibility of the examination. Brief description of the drawings

[0035] Figure 1 Fig. is a three-dimensional structural schematic diagram of an anoscope with adjustable light source according to the present invention.

[0036] Figure 2 is Figure 1 front view of

[0037] Figure 3 is Figure 1 side view of

[0038] Figure 4 is Figure 3 sectional view taken along line A-A in

[0039] Figure 5 is Figure 3 sectional view taken along line B-B in

[0040] Figure 6 is Figure 5 local enlarged schematic view at M in

[0041] Figure 7 is Figure 2 schematic view after expansion of

[0042] Figure 8 is Figure 5 structural schematic diagram of the elastic connecting member in

[0043] Reference numerals in the drawings of the specification include: 1, barrel base; 2, outer expansion block; 3, operating handle; 4, elastic capsule layer; 5, switch; 6, reset groove; 7, adjustment knob; 8, elastic protective film; 101, cavity; 102, smooth protrusion; 201, optical fiber; 202, air duct; 203, chute; 204, sealing ring; 205, slider; 206, first tension spring; 207, towing rope; 208, groove; 209, second tension spring; 210, elastic connecting member; 211, clamping groove; 212, limiting groove; 213, spring; 214, ratchet protrusion; 215, inclined groove; 216, reset member; 217, pipeline. Detailed implementation manners

[0044] Embodiments of the present invention will be described in detail below. Examples of the embodiments are shown in the accompanying drawings, where like or similar reference numerals denote like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the accompanying drawings are exemplary and are only used to explain the present invention and should not be construed as limiting the present invention.

[0045] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "longitudinal", "transverse", "vertical", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as limiting the present invention.

[0046] In the description of the present invention, unless otherwise specified and defined, it should be noted that the terms "mounted", "connected", "coupled" should be understood in a broad sense. For example, it may be a mechanical connection or an electrical connection, or it may be the communication inside two elements. It may be directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms can be understood according to specific circumstances.

[0047] The following will be further described in detail by specific embodiments:

[0048] Embodiment 1 is basically as shown in the attached Figures 1-8As shown: An anoscope with adjustable light source mainly includes a lens barrel base 1. Preferably, the lens barrel base 1 is in a cylindrical structure; several transparent outwardly expanding blocks 2 are arranged on the left side of the lens barrel base 1. Preferably, in this embodiment, there is a pair of outwardly expanding blocks 2. Preferably, the cross-section of the outwardly expanding block 2 gradually increases from the end close to the lens barrel base 1 to the end far from the lens barrel base 1. That is, in this embodiment, the shape of a single outwardly expanding block 2 is in the shape of a frustum of a semi-cone, and the two outwardly expanding blocks 2 and the lens barrel base 1 are combined to form a horn-shaped structure. The connection between the outwardly expanding block 2 and the lens barrel base 1 is a movable connection. Specifically, the connection between the outwardly expanding block 2 and the lens barrel base 1 is made of elastic rubber material, and the outwardly expanding block 2 and the lens barrel base 1 can deflect within a certain angle. An operating handle 3 is welded and fixed on each of the outwardly expanding blocks 2, and a lighting component is arranged on at least one of the outwardly expanding blocks 2. Specifically, the lighting component includes a light source and at least one optical fiber 201. In some other embodiments, multiple optical fibers 201 can be arranged, which is specifically determined according to actual lighting requirements; the light source is arranged in the operating handle 3, and the optical fiber 201 is arranged in the outwardly expanding block 2, and the output end of the light source is communicated with the optical fiber 201. Preferably, in this embodiment, the light source uses an LED lamp, and the optical fiber 201 is laid along the length direction of the outwardly expanding block 2. In this embodiment, the type of the optical fiber 201 is a volume-emitting optical fiber 201, and a flexible light column can be formed when light is transmitted in the optical fiber 201. The conductor of the optical fiber 201 itself is mainly made by drawing glass material (SiO2), and its transmission uses the principle that light enters a low-refractive-index medium at an angle higher than the critical angle through a high-refractive-index medium, resulting in total internal reflection, so that light can maintain the characteristics of the light waveform in this medium for transmission.

[0049] At least one contact surface end inside adjacent outwardly expanding blocks 2 is provided with a groove 208. Preferably, as shown in the attached Figure 5 figure, in this embodiment, the groove 208 is opened inside the top of the outwardly expanding block 2. The shape of the groove 208 is arc-shaped, and an elastic connecting piece 210 is arranged inside the groove 208. Preferably, in this embodiment, the elastic connecting piece 210 is a memory metal sheet with a certain arc. The two ends of the elastic connecting piece 210 are respectively in sliding fit with the grooves 208 of the adjacent outwardly expanding blocks 2; a limiting mechanism for restricting the one-way sliding of the elastic connecting piece 210 is also arranged inside the groove 208.

[0050] Specifically, the limiting mechanism includes a ratchet protrusion 214 and a limiting groove 212; the limiting groove 212 is opened at the bottom of the groove 208, the ratchet protrusion 214 is in sliding fit with the limiting groove 212, and a spring 213 is arranged between the limiting groove 212 and the ratchet protrusion 214. Both ends of the spring 213 are respectively welded and fixed to the inner wall of the limiting groove 212 and the bottom of the ratchet protrusion 214; as shown in the attached Figure 6 figure and the attached Figure 8As shown, a number of card slots 211 are provided at the bottom of the elastic connecting member 210. Specifically, the card slots 211 on the elastic connecting member 210 are mirror-symmetrically distributed with the midline of the elastic connecting member 210 as the axis of symmetry. Whenever the ratchet protrusion 214 passes through the card slot 211 unidirectionally, the ratchet protrusion 214 engages with the card slot 211. Specifically, for example, for the left outer expansion block 2, when the outer expansion block 2 moves to the left, the ratchet protrusion 214 and the card slot 211 slide relative to each other, and the elastic connecting member 210 moves to the right to push the ratchet protrusion 214 back into the limiting groove 212. When the outer expansion block 2 stops moving outward, the ratchet protrusion 214 pops out of the limiting groove 212 under the action of the spring 213 and engages with the card slot 211. During the whole process, the ratchet protrusion 214 only allows the elastic connecting member 210 to move unidirectionally.

[0051] Preferably, a reset assembly is provided on each of the outer expansion blocks 2; referring to Figure 2 and Figure 5 As shown, the reset assembly includes a reset member 216 and a switch 5; reset grooves 6 are provided on the left end surfaces of the outer expansion blocks 2, and the reset grooves 6 communicate with the limiting grooves 212;

[0052] The reset member 216 is slidably engaged with the reset groove 6. Preferably, in this embodiment, the reset member 216 is an arc-shaped push rod. The switch 5 is located on the surface of the outer expansion block 2, and the switch 5 is slidably engaged with the outer expansion block 2. Preferably, in this embodiment, the switch 5 is a rectangular block, and the switch 5 is fixedly welded to the reset member 216; referring to Figure 6 As shown, inclined grooves 215 are provided on one side of the ratchet protrusion 214 close to the reset groove 6. Preferably, in this embodiment, the cross-section of the inclined groove 215 is an inverted triangle, and the right end of the reset member 216 is slidably engaged with the inclined groove 215.

[0053] The specific implementation process is as follows:

[0054] Preoperative application:

[0055] Initially, lubricant is applied to the surfaces of the lens barrel base 1 and the outer expansion blocks 2. The doctor gently presses the lens barrel base 1 against the anal margin for a moment to relax the sphincter. The doctor holds the operating handle 3 and slowly pushes the lens barrel base 1 and the outer expansion blocks 2 towards the umbilical foramen until they are pushed to an appropriate position. Then the doctor adjusts the opening angle of the inner wall of the anus to obtain a larger field of view. The operating handle 3 is opened to both sides. At this time, the two ends of the elastic connecting member 210 slide relative to the grooves 208 respectively, and the middle area of the elastic connecting member 210 will gradually appear between the outer expansion blocks 2 and act as a "bridge" to support the outer expansion blocks 2. At the same time, the elastic connecting member 210 continuously squeezes the ratchet protrusion 214 back into the limiting groove 212 until it is opened to a suitable angle. Then the doctor can free both hands. At this time, the ratchet protrusion 214 will limit the elastic connecting member 210 from retracting into the groove 208, so that the outer expansion blocks 2 maintain the angle unchanged.

[0056] Then turn on the light source, and use the optical fiber 201 to transmit light into the anus to facilitate the observation of the color of the rectal mucosa, as well as abnormal conditions such as ulcers, bleeding, polyps, and tumors.

[0057] After the observation is completed, the doctor pushes the switch 5 to make the reset member 216 push the ratchet protrusion 214 back into the limit groove 212 to complete the unlocking of the elastic connecting member 210. The doctor holds the operating handle 3 and slowly withdraws from the anus, and while withdrawing, the outer expansion block 2 is reset.

[0058] Through the adjustable outer expansion and lighting system, the doctor can clearly observe the state of the rectal mucosa before surgery to assist in the diagnosis of hemorrhoids, anal fissures, polyps, and early tumors.

[0059] Intraoperative application: The outer expansion block 2 expands to provide a continuous and stable operation channel, facilitating the entry of instruments (such as an electric knife and a suction device) into the rectal area through the lens barrel channel (that is, the area surrounded by the outer expansion block 2, the same below). For example, when dealing with polyps or tumors of a relatively large volume, the outer expansion block 2 can be adjusted to an appropriate angle to provide sufficient operating space for the surgical instruments to perform operations such as resection and suture, avoiding affecting the surgical process or causing accidental injuries due to limited space.

[0060] The optical fiber 201 lighting system directly projects onto the surgical field, avoiding the shadow interference of traditional headlamp lighting, which is especially beneficial for the treatment of deep lesions. When dealing with deep lesions, such as the resection of lesions in the middle and lower segments of the rectum, the optical fiber 201 lighting can clearly illuminate the surgical site, enabling the doctor to accurately identify the tissue structure, blood vessel distribution, etc., which helps with delicate operations and reduces the risk of accidental injury.

[0061] In case of intraoperative bleeding, the local lighting can be enhanced by adjusting the brightness of the light source. At the same time, a hemostatic material or a negative pressure suction tube can be quickly inserted through the lens barrel channel. Under a clear field of view, the doctor can accurately deliver the hemostatic material to the bleeding site for compression hemostasis, or timely suck out the blood through the negative pressure suction tube to keep the surgical field clear and create good conditions for subsequent surgical operations.

[0062] The difference between Example 2 and the above Example 1 is only that an anti - detachment mechanism is provided on at least one outer expansion block 2; the anti - detachment mechanism includes a traction rope 207, a slider 205, and a chute 203; a pipeline 217 is connected between the chute 203 and the groove 208, and a sealing ring 204 is welded and fixed inside the pipeline 217; combined with the attached Figure 5 As shown, in this embodiment, the slider 205 is an arc - shaped block, the structure of the chute 203 is an arc - shaped structure, the slider 205 is slidably matched with the chute 203, both ends of the traction rope 207 are respectively bound to the elastic connecting member 210 and the slider 205, and the traction rope 207 passes through the sealing ring 204 and is slidably matched with the pipeline 217;

[0063] An elastic bladder layer 4 is provided on the outside of the lens barrel base 1. The elastic bladder layer 4 and the lens barrel base 1 are of an integral structure, and a cavity 101 is formed inside the elastic bladder layer 4; the cavity 101 is communicated with an air duct 202. Preferably, the air duct 202 is opened along the length direction of the outward expansion block 2, and the air duct 202 is communicated with the chute 203.

[0064] Specific implementation process: When the doctor controls the operating handle 3 to open the outward expansion block 2, the distance between the two ends of the elastic connecting piece 210 and the side wall of the groove 208 gradually increases, thereby driving the traction rope 207 to move the slider 205, and discharging the air in the chute 203 into the air duct 202 until the cavity 101 through the slider 205. The increased air pressure in the cavity 101 causes the elastic bladder layer 4 to expand, thereby fixing the lens barrel base 1 in the anus.

[0065] The difference between Embodiment 3 and the above-mentioned Embodiment 2 is only that a first tension spring 206 for resetting the slider 205 is further provided in the chute 203, and the two ends of the first tension spring 206 are respectively welded and fixed to the slider 205 and the side wall of the chute 203.

[0066] Specifically, when the outward expansion block 2 is reset, the elastic potential energy generated by the first tension spring 206 can assist the slider 205 and the traction rope 207 to automatically reset.

[0067] The difference between Embodiment 4 and the above-mentioned Embodiment 3 is only that a second tension spring 209 for resetting the elastic connecting piece 210 is provided in each of the grooves 208, and the two ends of the second tension spring 209 are respectively welded and fixed to the elastic connecting piece 210 and the side wall of the groove 208.

[0068] Specifically, when the outward expansion block 2 is reset, the elastic potential energy generated by the second tension spring 209 can assist the elastic connecting piece 210 to automatically retract into the groove 208.

[0069] The difference between Embodiment 5 and the above-mentioned Embodiment 4 is only that a smooth protrusion 102 is welded and fixed to the head of the lens barrel base 1.

[0070] Specifically, when the lens barrel base 1 is inserted into the anus, the design of the smooth protrusion 102 helps to reduce the friction between the head of the lens barrel base 1 and the anus entrance, making the insertion process of the anoscope smoother.

[0071] The difference between Embodiment 6 and the above-mentioned Embodiment 5 is only that an adjustment knob 7 is further installed on the lens barrel base 1. The adjustment knob 7 is electrically connected to the light source and is used to adjust the brightness and / or color temperature of the light source.

[0072] Specifically, when the doctor observes abnormal conditions such as the color of the rectal mucosa, the presence of ulcers, bleeding, polyps, tumors, etc., the brightness and color temperature of the light source are controlled through the adjustment knob 7, so as to more effectively observe the anal and rectal parts of the patient, and thus more accurately diagnose diseases.

[0073] The difference between Example 7 and the above-mentioned Example 6 is only that an elastic protective film 8 is further provided at the junction of adjacent outward expansion blocks 2. In this embodiment, the elastic protective film 8 is fixedly adhered to the tops of the two-sided outward expansion blocks 2 (specifically above the elastic connecting member). Preferably, the elastic protective film 8 is made of highly elastic medical silicone material, having biocompatibility and tear resistance.

[0074] When the outward expansion blocks 2 expand to both sides, there may be a "pinching" risk due to the extrusion of the mucosal tissue in the gap formed in the area of the elastic connecting member 210. The elastic protective film 8 extends synchronously during expansion, covering the mechanical gap at the junction of the outward expansion blocks 2 to form a smooth transition surface, effectively isolating the internal structure of the instrument from the anal mucosa and preventing soft tissue from being embedded or damaged by friction.

[0075] The elastic design of the elastic protective film 8 enables it to have no wrinkle accumulation during the opening / closing process, reducing adhesion to tissues and ensuring smooth outward expansion movement. At the same time, a hydrophilic coating can be applied to its surface to further reduce the frictional resistance and improve the comfort of the patient.

[0076] The above are only embodiments of the present invention. Specific structures and / or common knowledge such as characteristics well known in the art are not described in detail herein. It should be noted that for those skilled in the art, without departing from the structure of the present invention, several modifications and improvements can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the implementation effect of the present invention and the practicality of the patent. The protection scope required by this application should be based on the content of its claims, and the specific implementation manners described in the specification can be used to interpret the content of the claims.

Claims

1. An anoscope with adjustable light source, comprising a lens barrel base (1); a plurality of transparent outward expansion blocks (2) are arranged on the lens barrel base (1), and the connection between the outward expansion blocks (2) and the lens barrel base (1) is movably connected. Operating handles (3) are arranged on the outward expansion blocks (2), and a lighting component is arranged on at least one outward expansion block (2); characterized in that: At least one contact surface end of the adjacent outward expansion blocks (2) is provided with a groove (208) inside, an elastic connecting member (210) is arranged inside the groove (208), and both ends of the elastic connecting member (210) are in sliding fit with the grooves (208) of the adjacent outward expansion blocks (2); a limiting mechanism for restricting the one-way sliding of the elastic connecting member (210) is also arranged inside the grooves (208).

2. The adjustable anoscope with a light source according to claim 1, wherein: The lighting assembly includes a light source and at least one optical fiber (201); the light source is located inside the operating handle (3), the optical fiber (201) is arranged inside the outward expansion block (2), and the output end of the light source is communicated with the optical fiber (201).

3. The adjustable anoscope with a light source according to claim 2, wherein: The limiting mechanism includes a ratchet protrusion (214) and a limiting groove (212); the limiting groove (212) is located inside the side wall of the groove (208), the ratchet protrusion (214) is in sliding fit with the limiting groove (212), and a spring (213) is arranged between the limiting groove (212) and the ratchet protrusion (214); a plurality of clamping grooves (211) are arranged on one side of the elastic connecting member (210) close to the limiting groove (212), and whenever the ratchet protrusion (214) passes through the clamping groove (211) unidirectionally, the ratchet protrusion (214) is clamped with the clamping groove (211).

4. The adjustable anoscope with a light source according to claim 3, characterized in that: A reset assembly is arranged on each of the outward expansion blocks (2); the reset assembly includes a reset member (216) and a switch (5); a reset groove (6) is arranged at one end of each of the outward expansion blocks (2) close to the operating handle (3), the reset groove (6) is communicated with the limiting groove (212), the reset member (216) is in sliding fit with the reset groove (6), the switch (5) is located on the surface of the outward expansion block (2), the switch (5) is in sliding fit with the outward expansion block (2), and the switch (5) is fixedly connected with the reset member (216); an inclined groove (215) is arranged on one side of the ratchet protrusion (214) close to the reset groove (6), and one end of the reset member (216) close to the inclined groove (215) is in sliding fit with the inclined groove (215).

5. The adjustable anoscope with a light source according to claim 4, characterized in that: A anti-disengagement mechanism is arranged on at least one of the outward expansion blocks (2); the anti-disengagement mechanism includes a traction rope (207), a slider (205) and a sliding groove (203); a pipeline (217) is communicated between the sliding groove (203) and the groove (208), a sealing ring (204) is arranged inside the pipeline (217), the slider (205) is in sliding fit with the sliding groove (203), both ends of the traction rope (207) are fixedly connected with the elastic connecting member (210) and the slider (205) respectively, and the traction rope (207) passes through the sealing ring (204) and is in sliding fit with the pipeline (217); An elastic capsule layer (4) is arranged on the outside of the lens barrel base (1), and a cavity (101) is arranged inside the elastic capsule layer (4); the cavity (101) is communicated with an air duct (202), and the air duct (202) is communicated with the sliding groove (203).

6. The adjustable anoscope with a light source according to claim 5, characterized in that: A first tension spring (206) for resetting the slider (205) is also arranged inside the sliding groove (203).

7. The adjustable anoscope with a light source according to claim 6, characterized in that: A second tension spring (209) for resetting the elastic connecting member (210) is arranged inside each of the grooves (208).

8. The adjustable anoscope with a light source according to claim 7, wherein: The cross section of the outward expansion block (2) gradually increases from one end close to the lens barrel base (1) to the end far from the lens barrel base (1).

9. The adjustable anoscope with a light source according to claim 8, characterized in that: A smooth protrusion (102) is arranged at the head of the lens barrel base (1).

10. The adjustable anoscope with a light source according to claim 9, characterized in that: The lens barrel base (1) is also provided with an adjustment knob (7), and the adjustment knob (7) is electrically connected to the light source and is used to adjust the brightness and / or color temperature of the light source.

Images