Vaginal dilator with light source

Abstract

The invention discloses a vaginal dilator with a light source, which relates to the technical field of medical instruments and is characterized by comprising a dilation structure, a light source system, an adjusting structure and a handle. The expansion structure is formed by hinging upper and lower tooth parts, and the surface of the expansion structure is coated with a silica gel layer to ensure comfort and biocompatibility; an observation window is arranged at the front end of the upper tooth part; a light guide column is integrated in the lower tooth part. The light source system comprises an LED module and a turning structure, uniform floodlight source distribution and accurate point light source illumination are achieved through microprism texture processing and light guide fibers, and the irradiation angle can be adjusted to meet different inspection requirements. And the adjusting structure comprises a fine adjustment knob and an angle adjusting knob, so that accurate control of the expansion angle and flexible adjustment of the light source angle can be realized. The problems that in the prior art, the light source angle cannot be adjusted, and the dilation angle is not finely adjusted are solved, the examination accuracy and the comfort of a patient are improved, and the device is suitable for gynecological examination and conventional treatment.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and particularly relates to a vaginal speculum with a built-in light source. Background Art

[0002] Currently, during clinical gynecological examinations, routine treatments, and contraceptive measures, disposable vaginal speculums are used. The existing vaginal speculum is usually a thin duckbill clip. After the doctor places it in the patient's vagina and opens the entire clip, an external light source such as a gynecological examination lamp is used to observe the inner wall of the patient's vagina and the cervix. However, the gynecological examination lamp is large. If placed in front of the doctor, it is easy to block the doctor's line of sight. If placed behind the doctor, the doctor's hand or head in front will block the light, forming a shadow, resulting in an inability to comprehensively and clearly observe the lesion, which not only affects the accuracy of the doctor's diagnosis but also prolongs the diagnosis time and increases the patient's pain.

[0003] To solve the above problems, a Chinese patent (Patent Publication No.: CN209332015U) discloses a vaginal speculum with a built-in light source, including a vaginal dilation device and a lighting device. Among them, the vaginal dilation device includes a first member, a second member, and an opening and closing limit structure. The front part of the first member is an upper blade, and the rear part is an observation window integrated with the upper blade. The bottom of the observation window extends downward to form a first handle. The front part of the second member is a lower blade, and the rear part is a neck integrated with the lower blade. The neck extends downward to form a second handle with an assembly groove, and the lighting device is installed in the assembly groove; the lighting device includes an upper shell, a lower shell, a light-emitting body, a battery, an adjustment switch, and a circuit board.

[0004] The above solution has a small and sterile lighting device, emits strong and bright light, and can conveniently adjust the brightness of the light, enabling the doctor to conveniently and clearly observe the lesion of the cervix during a gynecological examination and make an accurate diagnosis; however, this vaginal speculum with a built-in light source still has some defects: First, the lighting device of the existing technology is installed in the assembly groove, and the light distribution may not be uniform, there are lighting dead corners, affecting the doctor's comprehensive observation of the lesion; second, the existing technology does not clearly mention a fine adjustment method for the opening and closing angle of the dilation structure, and cannot meet the doctor's precise control requirements for the opening and closing angle during the examination process; third, the existing technology is usually made of plastic, with a relatively hard texture, resulting in a poor patient experience when placed in the vagina, having a certain biocompatibility risk, and a greater tissue irritation to the patient. Summary of the Invention

[0005] The purpose of the present invention is to solve the above problems and provide a vaginal speculum with a built-in light source to solve problems such as the non-adjustable light source angle and the insufficiently fine adjustment of the dilation angle in the existing technology.

[0006] To achieve the above purpose, the technical solution of the present invention is as follows: A vaginal speculum with a built-in light source, including:

[0007] An expansion structure, consisting of an articulated upper dental part and a lower dental part. An oval observation window is provided at the front end of the upper dental part. A light guide column is provided inside the lower dental part. A rotating shaft is arranged between the upper and lower dental parts and they are articulated through the rotating shaft;

[0008] A light source system, including an LED module integrated at the end of the light guide column, a folding structure for adjusting the irradiation angle of the LED module, and a cable connecting the LED module;

[0009] An adjustment structure, including a fine-tuning knob for controlling the opening and closing angle of the expansion structure, an angle adjustment knob for adjusting the irradiation angle of the light source system, a limit block, a sliding block, a return spring and an adjustment piece;

[0010] A handle, including a gripping handle connected to the lower dental part and a pressing handle connected to the upper dental part. A battery compartment is provided at the end of the gripping handle, and a power supply unit is built in;

[0011] Wherein, the surface of the light guide column is treated with a micro-prism texture. By rotating the angle adjustment knob, the folding angle of the folding structure is controlled, and thus the irradiation angle of the LED module is controlled. Each 15° rotation of the fine-tuning knob generates an opening and closing stroke adjustment of 0.5 mm, and the opening and closing angle of the expansion structure is finely adjusted through the fine-tuning knob.

[0012] Furthermore, the upper dental part and the lower dental part are injection molded from medical-grade modified polypropylene, are symmetrically distributed in an arc shape, and are coated with a 0.8 mm thick silicone layer on the surface. The silicone layer is subjected to biocompatibility treatment to form a skin-friendly contact surface.

[0013] Furthermore, in the folding structure, the first folding piece and the articulated piece are integrally formed, and a groove is provided inside to accommodate the second folding piece; a receiving groove is provided at the bottom of the LED module to accommodate the folding structure. By controlling the angle between the first folding piece and the second folding piece through the angle adjustment knob, the light source angle adjustment is realized.

[0014] Furthermore, the adjustment structure further includes a fixing ring. The sliding block is slidably arranged inside the fixing ring. The return spring is sleeved outside the sliding block. The adjustment piece is matched with the sliding groove of the sliding block through a sliding rod to ensure the stability of the angle adjustment.

[0015] Furthermore, the gripping handle adopts an ergonomic design with a 15° inclination angle, and the surface is covered with a 0.3 mm thick TPU anti-slip pattern. The width of the gripping area is 38 mm; the power supply unit includes 3 CR2032 button batteries, and powers the light source system through the magnetic contact points arranged on the top surface of the gripping handle.

[0016] Further, when the pressing stroke of the pressing handle is 8 mm, the maximum opening and closing angle of the expansion structure is 25°; the pressure sensor is electrically connected to the buzzer prompt, and a warning is automatically triggered when the operating pressure exceeds the threshold value.

[0017] Further, a wire passing hole is penetrated between the light guide column and the LED module, the cable is connected to the power supply unit through the wire passing hole, and the light guide column adopts optical fibers to realize uniform floodlight distribution.

[0018] Further, the upper tooth part and the lower tooth part are hinged through a rotating shaft, the output end of the rotating shaft is connected with an adjusting piece, and the linkage of the limiting block and the sliding block is driven by the fine-tuning knob to realize precise control of the opening and closing angle.

[0019] Further, the point light source emitted by the LED module is scattered through the micro-prism texture surface of the light guide column to form a dead-angle-free illumination covering the inside of the vagina, and the distance between the end of the light guide column and the LED module is adjustable to adapt to different depth inspection requirements.

[0020] Further, the battery compartment adopts a detachable design, and a waterproof sealing ring is used to ensure moisture-proof and insulation of the internal power supply unit.

[0021] Compared with the prior art, the beneficial effects of this solution: Through the micro-prism texture treatment of the light guide column and the application of optical fibers, the present invention realizes uniform floodlight distribution and precise point light source illumination, solves the problems of light occlusion and illumination dead angles in the prior art, and ensures that doctors can observe lesions more clearly during examinations. Secondly, the present invention is injection-molded with medical-grade modified polypropylene and is coated with a 0.8-mm-thick silicone layer on the surface. After biocompatibility treatment, a skin-friendly contact surface is formed, significantly improving the comfort and safety of patients. In addition, the adjustment structure of the present invention includes a fine-tuning knob and an angle adjustment knob, which can realize precise control of the expansion angle and flexible adjustment of the light source irradiation angle, meeting the inspection requirements of different depths and angles. The handle part adopts an ergonomic 15° inclination design, with a TPU anti-slip pattern on the surface and a grip area width of 38 mm, ensuring stability and comfort during operation.

[0022] The battery compartment at the end of the holding handle of the present invention is internally provided with 3 CR2032 button batteries, which are powered by magnetic contact points to ensure the continuity and stability of the lighting function. At the same time, the detachable design and waterproof sealing ring are adopted to effectively prevent battery loss and equipment moisture. The pressing handle is provided with a pressure sensor, and a buzzer prompt is triggered when the operating pressure exceeds 5 N to avoid harming patients due to improper operation. In addition, the distance between the light guide column and the LED module is adjustable to adapt to different depth inspection requirements, further improving the flexibility and applicability of the device. Description of the Drawings

[0023] Figure 1 is a schematic diagram of the overall structure in an embodiment of the present invention;

[0024] Figure 2 is a schematic diagram of the separation of the holding handle and the main body in an embodiment of the present invention;

[0025] Figure 3 is a schematic diagram of the upper tooth part structure in an embodiment of the present invention;

[0026] Figure 4 is a schematic diagram of the adjustment structure in an embodiment of the present invention;

[0027] Figure 5 is an enlarged schematic diagram of the light source angle adjustment in an embodiment of the present invention;

[0028] Figure 6 is a schematic diagram of the internal structure of the angle adjustment structure in an embodiment of the present invention.

[0029] In the figure: 1. Expansion structure; 101. Upper tooth part; 102. Lower tooth part; 103. Observation window; 104. Sliding groove; 105. Silicone layer;

[0030] 2. Light source system; 201. Light guide column; 202. LED module; 203. Folding structure; 2031. First folding part; 2032. Second folding part; 2033. Hinge part; 2034. Groove; 2035. Accommodating groove; 2036. Cable;

[0031] 3. Adjustment structure; 301. Fine adjustment knob; 302. Angle adjustment knob; 303. Limit block; 304. Sliding block; 305. Fastener; 306. Fixed ring; 307. Fixed protrusion; 308. Return spring; 309. Fixed groove; 310. Adjusting piece; 311. Slide bar;

[0032] 4. Handle; 401. Holding handle; 402. Pressing handle; 403. Battery compartment; 404. Contact; 5. Rotating shaft. Detailed implementation manners

[0033] In order to enable those skilled in the art to better understand the solution of the present invention, the technical solution of the present invention will be further described in detail below in conjunction with the embodiments and drawings of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0034] It should be noted that, without conflict, the embodiments in the present invention and the features in the embodiments can be combined with each other. The present invention will be described in detail below in conjunction with the embodiments.

[0035] Example: As Figure 1-6 shown, a vaginal dilator with a built-in light source includes a dilation structure 1, a light source system 2, an adjustment structure 3, and a handle 4;

[0036] The dilation structure 1 is the core part of the device, consisting of upper and lower dental parts 102. The upper and lower dental parts 102 are injection-molded from medical-grade modified polypropylene and are symmetrically distributed in an arc shape. The upper and lower dental parts 102 are hinged by a rotating shaft 5 to achieve an opening and closing action. The surface of the upper and lower dental parts 102 is coated with a 0.8-mm-thick silicone layer 105. The silicone layer 105 has been biocompatibility-treated to form a skin-friendly contact surface, ensuring comfort and safety during use. An oval observation window 103 is provided at the front end of the upper dental part 101 to facilitate observing the internal situation during surgery or examination.

[0037] The adjustment structure 3 is arranged at the connection of the upper and lower dental parts 102 and is used to precisely control the opening and closing angle of the dilation structure 1 and the angle of the light source system 2. The adjustment structure 3 includes a fine-tuning knob 301 and an angle adjustment knob 302. The fine-tuning knob 301 is fixedly connected to a limit block 303. A fastener 305 is arranged between the limit block 303 and the fine-tuning knob 301 for fixing and limiting. A fixing ring 306 is provided at the bottom of the limit block 303, and a sliding block 304 is slidably arranged within the fixing ring 306. A sliding groove 104 corresponding to the inner side wall of the limit block 303 is provided on the top surface of the sliding block 304. A return spring 308 is sleeved outside the sliding block 304 to provide an elastic return function. A fixing protrusion is provided at the end of the sliding block 304, and a rotating shaft 5 is provided at the end of the fixing protrusion. The output end of the rotating shaft 5 is connected to an adjusting piece 310. A slide bar 311 is provided on the surface of the adjusting piece 310, and the slide bar 311 cooperates with the sliding groove 104 to achieve the angle adjustment function. By rotating the fine-tuning knob 301 by 15° each time, an opening and closing stroke adjustment of 0.5 mm can be generated; by the angle adjustment knob 302, the angle between the LED module 202 and the light guide column 201 can be adjusted.

[0038] The light source system 2 includes a light guide column 201 and an LED module 202. The light guide column 201 is disposed inside the lower dental part 102 and its surface is treated with a micro prism texture to enhance the uniform distribution of light. An LED module 202 with an adjustable angle is integrated at the end of the light guide column 201. The LED module 202 emits point light sources to precisely illuminate the position to be treated, ensuring that the light covers the inside of the vagina without dead angles. A folding structure 203 is provided between the light guide column 201 and the LED module 202 for adjusting the irradiation angle of the LED module 202. The folding structure 203 includes a first folding member 2031, a second folding member 2032 and a hinge member 2033. The first folding member 2031 is integrally formed with the hinge member 2033 and has a groove 2034 inside for storing the second folding member 2032. An accommodation groove 2035 is provided at the bottom of the LED module 202, and an angle adjustment structure 3 is provided in the accommodation groove 2035. The second folding member 2032 is disposed at the bottom of the LED module 202. By rotating the angle adjustment knob 302, the angle between the first folding member 2031 and the second folding member 2032 is controlled, and thus the irradiation angle of the LED module 202 is controlled. Through holes for the cable 2036 to pass through are formed through the light guide column 201 and the LED module 202. The cable 2036 is used to connect the LED module 202 and the light guide column 201 to ensure the normal operation of the light source system 2.

[0039] The handle 4 part includes a holding handle 401 and a pressing handle 402. The holding handle 401 is designed with a 15° inclination angle conforming to ergonomics, and its surface is covered with a 0.3 mm thick TPU anti-slip pattern. The width of the holding area is 38 mm to ensure the stability and comfort during operation. A battery compartment 403 is provided at the end of the holding handle 401, which is internally provided with 3 CR2032 button batteries. The light source system 2 is powered through the magnetic contact 404 provided on the top surface of the holding handle 401. The holding handle 401 is designed to be detachable, so that the holding handle 401 can be reused, and only the components in direct contact with the vaginal inner wall such as the upper and lower dental parts 102 need to be replaced, thus saving the replacement cost. The pressing handle 402 is integrally formed with the end of the upper dental part 101 and is used to initially adjust the opening and closing angle of the expansion structure 1. When the pressing stroke is 8 mm, a maximum opening and closing angle of 25° can be generated. A pressure sensor is provided inside. When the operating pressure exceeds 5 N, a beeping prompt is triggered to ensure safety during use.

[0040] Working principle: The present invention achieves precise expansion function through the synergistic effect of the expansion structure 1 and the adjustment structure 3. The upper and lower dental parts 102 are injection-molded with medical-grade modified polypropylene, distributed symmetrically in an arc shape, and the opening and closing actions are realized through hinge connection with the rotating shaft 5. The surface of the upper and lower dental parts 102 is coated with a 0.8-mm-thick silicone layer 105 to ensure comfort and biocompatibility during use. An oval observation window 103 is provided at the front end of the upper dental part 101 to facilitate observing the internal situation during surgery or examination. The handle 4 part includes an ergonomically designed gripping handle 401 and a pressing handle 402. The battery compartment 403 at the end of the gripping handle 401 contains 3 CR2032 button batteries, which supply power to the light source system 2 through magnetic contact points 404 to ensure the continuity and stability of the lighting function. The pressing handle 402 is integrally formed with the end of the upper dental part 101 and is used to initially adjust the opening and closing angle of the expansion structure 1. When the pressing stroke is 8 mm, a maximum opening and closing angle of 25° can be generated. The internally provided pressure sensor triggers a beeping prompt when the operating pressure exceeds 5 N to ensure safe use; the fine-tuning knob 301 is set at the connection of the upper and lower dental parts 102, and the opening and closing stroke is adjusted by 0.5 mm for every 15° rotation to achieve precise control of the expansion angle; the adjustment structure 3 includes components such as a limit block 303, a sliding block 304, a return spring 308, and an adjustment piece 310. The sliding block 304 slides within the fixed ring 306, and the return spring 308 provides an elastic return function. The adjustment piece 310 cooperates with the sliding groove 104 through a sliding rod 311 to ensure the stability and precision of the adjustment.

[0041] The light source system 2 realizes uniform floodlight and precise point light source illumination through the collaborative work of the light guide column 201 and the LED module 202. The light guide column 201 is arranged inside the lower dental part 102, and its surface is treated with micro-prism texture to enhance the uniform distribution of light. The end of the light guide column 201 is integrated with an LED module 202 with an adjustable angle. The LED module 202 emits point light sources to precisely illuminate the position to be treated, ensuring that the light covers the vagina internally without dead angles. The light guide column 201 uses optical fibers to evenly distribute light sources and provides stable floodlight support for the overall structure. A folding structure 203 is provided between the LED module 202 and the light guide column 201, including a folding piece one 2031, a folding piece two 2032, and a hinge piece 2033. The folding piece one 2031 is integrally formed with the hinge piece 2033, and the internal groove 2034 stores the folding piece two 2032. The accommodation groove 2035 at the bottom of the LED module 202 is internally provided with an angle adjustment structure 3; the present invention controls the angle between the folding piece one 2031 and the folding piece two 2032 by rotating the angle adjustment knob 302, thereby adjusting the irradiation direction of the LED module 202. A wire passing hole is penetrated between the light guide column 201 and the LED module 202 for connecting the cable 2036 to ensure the normal operation of the light source system 2.

[0042] The above specific embodiments are merely explanations of the present invention, and they are not limitations of the present invention. After reading this specification, those skilled in the art can make modifications to these embodiments that do not contribute creatively as needed, but as long as they are within the scope of the claims of the present invention, they are protected by the patent law.

Claims

1. A vaginal speculum with a built-in light source, characterized in that: Comprising: An expansion structure (1), which consists of a hinged upper dental part (101) and a lower dental part (102). An oval observation window (103) is provided at the front end of the upper dental part (101). A light guide column (201) is arranged inside the lower dental part. A rotating shaft (5) is arranged between the upper and lower dental parts (102) and they are hinged through the rotating shaft (5); A light source system (2), which includes an LED module (202) integrated at the end of the light guide column (201), a folding structure (203) for adjusting the irradiation angle of the LED module (202), and a cable (2036) connecting the LED module (202); An adjustment structure (3), which includes a fine adjustment knob (301) for controlling the opening and closing angle of the expansion structure (1), an angle adjustment knob (302) for adjusting the irradiation angle of the light source system (2), a limit block (303), a sliding block (304), a return spring (308) and an adjustment piece (310); A handle (4), which includes a holding handle (401) connected to the lower dental part (102) and a pressing handle (402) connected to the upper dental part (101). A battery compartment (403) is provided at the end of the holding handle (401), and a power supply unit is built in; Wherein, the surface of the light guide column (201) is processed with a micro prism texture. By rotating the angle adjustment knob (302), the folding angle of the folding structure (203) is controlled, and thus the irradiation angle of the LED module (202) is controlled. Each 15° rotation of the fine adjustment knob (301) generates an opening and closing stroke adjustment of 0.5 mm, and the opening and closing angle of the expansion structure (1) is finely adjusted through the fine adjustment knob (301).

2. The vaginal dilator according to claim 1, wherein: The upper dental part (101) and the lower dental part (102) are injection molded with medical grade modified polypropylene, are symmetrically distributed in an arc shape, and a silica gel layer (105) with a thickness of 0.8 mm is coated on the surface. The silica gel layer (105) is subjected to biocompatibility treatment to form a skin-friendly contact surface.

3. The vaginal dilator according to claim 1, characterized in that: In the folding structure (203), the first folding part (2031) and the hinge part (2033) are integrally formed, and a groove (2034) is arranged inside to accommodate the second folding part (2032); a receiving groove (2035) is arranged at the bottom of the LED module (202) to accommodate the folding structure (203). By controlling the angle between the first folding part (2031) and the second folding part (2032) through the angle adjustment knob (302), the light source angle adjustment is realized.

4. The vaginal dilator according to claim 1, characterized in that: The adjustment structure (3) further includes a fixing ring (306). The sliding block (304) is slidably arranged inside the fixing ring (306). The return spring (308) is sleeved outside the sliding block (304). The adjustment piece (310) is matched with the sliding groove (104) of the sliding block (304) through a sliding rod (311) to ensure the stability of the angle adjustment.

5. The vaginal dilator according to claim 1, characterized in that: The holding handle (401) adopts an ergonomic design with a 15° inclination angle, and its surface is covered with TPU anti-slip patterns with a thickness of 0.3 mm. The width of the holding area is 38 mm. The power supply unit includes three CR2032 button batteries, which supply power to the light source system (2) through the magnetic contact points (404) arranged on the top surface of the holding handle (401).

6. The vaginal dilator according to claim 1, characterized in that: When the pressing stroke of the pressing handle (402) is 8 mm, the maximum opening and closing angle of the expansion structure (1) is 25°. The pressure sensor is electrically connected to the buzzer prompt, and when the operating pressure exceeds the threshold value, a warning is automatically triggered.

7. The vaginal dilator according to claim 1, characterized in that: A wire passing hole is penetrated between the light guide column (201) and the LED module (202). The cable (2036) is connected to the power supply unit through the wire passing hole, and the light guide column (201) adopts optical fiber to achieve uniform diffuse light source distribution.

8. The vaginal dilator according to claim 1, characterized in that: The upper tooth part (101) and the lower tooth part (102) are hinged through a rotating shaft (5). The output end of the rotating shaft (5) is connected to an adjusting piece (310). By driving the linkage of the limiting block (303) and the sliding block (304) through the fine-tuning knob (301), precise control of the opening and closing angle is achieved.

9. The vaginal dilator according to claim 1, characterized in that: The point light source emitted by the LED module (202) is scattered through the micro-prism texture surface of the light guide column (201) to form a dead-angle-free illumination covering the inside of the vagina. Moreover, the distance between the end of the light guide column (201) and the LED module (202) is adjustable to adapt to different depth inspection requirements.

10. The vaginal dilator according to claim 1, characterized in that: The battery compartment (403) adopts a detachable design, and a waterproof sealing ring is used to ensure moisture protection and insulation of the internal power supply unit.

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