An auxiliary tool for treating periodontal disease of oral cavity

Abstract

The present application relates to the technical field of oral treatment, in particular to a kind of oral periodontal disease treatment auxiliary tool, including shear fork operating part, and angle locking mechanism being arranged in the tail of shear fork operating part, two props open mechanism are oppositely provided in the head of shear fork operating part, and tongue depressor is arranged below the hinged place thereof;Two props open mechanism inside respectively is provided with two scaling mechanism towards opposite, two scaling mechanism is respectively connected with two control rods, and two control rods are respectively arranged in the outside of shear fork operating part.The present application solves the problems that the existing tool cannot be adjusted according to the patient's oral cavity, props open fit is poor, operation field is not fully exposed, lacks soft tissue protection structure, is easy to press and scratch oral mucosa, and the operation visual field has large blind area;Tongue body is easy to shift and offset during treatment and block operation field, leading to incomplete lesion cleaning and easy to hurt soft tissue;Single working mode, only rigid scaling, cannot switch flexible debridement mode according to periodontal disease, and the adaptability is insufficient.

Description

Technical Field

[0001] This invention relates to the field of oral treatment technology, and more specifically to an auxiliary tool for the treatment of periodontal disease. Background Technology

[0002] A gas turbine is an internal combustion engine that uses a continuously flowing gas as its working fluid to drive a high-speed rotating impeller, converting the energy of fuel into useful work. It is a type of rotating turbine-type thermal engine. In the field of marine engineering, it is often necessary to measure the dimensions of the turbine's engineering components to provide operational data.

[0003] Chinese Patent Publication No. CN116672118A discloses an auxiliary tool for treating periodontal disease, including an upper opening handle, a lower opening handle, an opening device, a control device, and a suction device. This invention addresses the following problems in existing technologies for treating periodontal disease: it can only open the teeth inside the mouth, not the lips; in complex oral treatments, it requires the use of instruments to open the lips, or manual opening, which is inconvenient and slow; patients produce a large amount of saliva when their mouths are open for extended periods, which may cause choking and discomfort; this invention can open the patient's lips while opening the mouth, facilitating treatment of the affected areas on the outer side of the periodontium; furthermore, the intermittent expansion of the air bladder in a contracted state, combined with the suction tube, can intermittently suction saliva from the patient's mouth, effectively preventing choking.

[0004] However, the aforementioned oral and periodontal disease treatment aids are limited in function, structural adaptability, and coordination, making them unsuitable for the requirements of refined, minimally invasive clinical treatment. They cannot adaptively adjust to different patients' oral cavity width, interdental space size, and vestibular depth, resulting in poor fit and insufficient exposure of the surgical area. Furthermore, they lack specialized soft tissue protection structures, easily causing pressure and abrasion to the oral mucosa, and have a large blind spot during operation. Moreover, during treatment, the tongue is prone to movement and displacement, obstructing the core surgical area, leading to poor continuity of treatment, incomplete lesion removal, and potential soft tissue injury. In addition, these tools have a limited working mode, only capable of rigid scaling, and cannot switch to a gentle debridement mode according to the severity of periodontal disease, resulting in insufficient adaptability and significant trauma during treatment. Summary of the Invention

[0005] The purpose of this invention is to provide an auxiliary tool for the treatment of oral periodontal diseases, overcoming the problems of existing auxiliary tools for the treatment of oral periodontal diseases, such as the inability to adaptively adjust according to the patient's oral cavity width, interdental spaces, and vestibular depth; poor fit and insufficient exposure of the surgical area; lack of soft tissue protection structure; easy compression and damage to the oral mucosa; large blind spots in the operating field; easy movement and displacement of the tongue during treatment, obscuring the core surgical area, resulting in incomplete lesion cleaning and easy damage to soft tissue; and a single working mode, only able to perform rigid curettage, unable to switch to a flexible debridement mode according to the severity of periodontal lesions, resulting in insufficient adaptability.

[0006] An auxiliary tool for treating periodontal disease was designed, employing a scissor-type opening and closing structure. The core components include a scissor-type operating part, two symmetrically arranged opening mechanisms, a height-adjustable tongue depressor, and a matching scaling mechanism and control levers. These structures work together to simultaneously achieve functions such as buccal opening, tongue restraint, full exposure of the surgical area, multi-angle fixed-point scaling and cleaning, and locking of the operating angle. This significantly improves the convenience, accuracy, and safety of periodontal disease diagnosis and treatment. The specific solution is as follows: An auxiliary tool for treating oral periodontal disease includes a scissor fork operating part and an angle locking mechanism disposed at the tail of the scissor fork operating part. The head of the scissor fork operating part is provided with two opening mechanisms facing each other, and a tongue depressor is disposed below its hinge. The inner sides of the two opening mechanisms are respectively provided with two scraping mechanisms facing opposite directions. Each scraping mechanism is connected to a control lever for changing the working mode of the scraping mechanism. The two control levers are respectively located on the outer side of the scissor lift operating part.

[0007] Preferably, the scissor lift operation unit includes: The first operating handle has a hinge shaft that extends downwards fixedly connected to its middle part, and a drive tooth is fixedly connected to the lower end of the hinge shaft. The second operating handle is rotatably connected to the hinge shaft in the middle, and a driven tooth is rotatably connected through the connecting cylinder in the middle. The driven tooth meshes with the driving tooth, and the tongue depressor is connected to the driven tooth.

[0008] Preferably, a threaded lifting rod is threadedly connected inside the connecting cylinder, and a top cap is fixedly connected to the upper end of the threaded lifting rod; The tongue depressor is fixedly connected to the lower end of the threaded lifting rod, and a groove is provided at the bottom of the tongue depressor to accommodate the tip of the patient's tongue.

[0009] Preferably, the spreading mechanism includes: The mounting ring is fixedly connected to the head of the scissor lift operating part and is set at an obtuse angle to the head of the scissor lift operating part. A cheek side plate is connected to its outer side through several elastic elements, and its inner side is connected to the scraping mechanism. The dental support bar has a trapezoidal strip structure that is smaller on the inside and larger on the outside. It is connected to the inner side of the buccal plate by a tapered connecting post, which passes through the center of the mounting ring. Two arc-shaped protective plates are provided, which are respectively hinged to the upper and lower sides of the cheek side plate. A sliding rod perpendicular to the mounting ring is provided on the inner side of the plate. The sliding rod is slidably connected to the sliding rings on the upper and lower sides of the mounting ring.

[0010] Preferably, the control lever includes: The inner rod is arranged on the outer side of the first and second operating handles of the scissor lift operating part and is connected to the two ends of the two parts by a mounting clamp. The movable outer tube is sleeved on the outside of the inner rod and can slide back and forth along the axial direction of the inner rod. It is provided with a transition section that adapts to the corner of the inner rod. The scraping mechanism is located at the head of the movable outer tube. A push block is connected to the tail of the movable outer tube, and a return spring is provided at the tail connection. The push block is located on the finger ring side of the tail of the scissor lift operation section.

[0011] Preferably, the scraping mechanism includes: The telescopic section is connected to the head of the movable outer tube and sleeved on the end of the inner rod head; The brush bundles are conical in shape and linearly and equidistantly distributed on the telescopic section.

[0012] Preferably, the angle locking mechanism includes: The arc-shaped rack has one end hinged to the inside of the second operating handle of the scissor lift unit via a connecting ball, and the other end passes through the through hole inside the first operating handle of the scissor lift unit. A locking pin is slidably connected in a telescopic hole in the sidewall of the through hole, and a spring is connected to its tail.

[0013] Preferably, the angle locking mechanism further includes an unlocking slider, which is connected to the locking pin via a connecting rod and is located outside the second operating handle. The connecting rod is slidably connected in a groove communicating with the telescopic hole.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. This invention features a symmetrical support mechanism that uses an elastic element to drive the buccal plate to adaptively fit different patient buccal dimensions, thus addressing the problems of poor adaptability associated with traditional fixed support instruments. The sliding rod and ring work together to guide and limit the movement of the arc-shaped protective plate, providing stable outward rotation and isolating and protecting the soft tissues of the lips and cheeks, completely eliminating blind spots in the surgical field. Simultaneously, the use of a trapezoidal tooth support strip with a smaller inner diameter and a larger outer diameter disperses support pressure, preventing tooth sensitivity and gingival damage caused by single-point pressure. This significantly improves patient comfort and surgical safety while fully exposing the periodontal surgical area.

[0015] 2. This invention utilizes the meshing linkage structure of the driving teeth and driven teeth, combined with the threaded transmission of the threaded lifting rod and connecting cylinder, to adaptively and finely adjust the height and position of the tongue depressor according to the opening angle of the oral cavity. The tongue tip is precisely positioned and fixed by the groove at the bottom of the tongue depressor, effectively preventing the tongue from lifting, wobbling, or shifting and obstructing the surgical area. This maintains a clear and stable field of vision throughout the procedure, avoiding interruptions, residual lesion cleaning, and soft tissue injury caused by obstructed vision, significantly improving the continuity and precision of periodontal treatment.

[0016] 3. This invention controls the push-pull adjustment of the control rod to drive the telescopic section to expand and contract, precisely changing the distribution density of the brush bundle and flexibly switching between two working modes: rigid scaling and gentle debridement. In the high-density brush bundle state, the overall structural hardness is increased, which can efficiently scrape away thick tartar and proliferating inflammatory granulation tissue, making it suitable for the treatment of severe periodontal disease. In the low-density brush bundle state, the overall flexibility is increased, which can gently clean superficial plaque and minor inflammation, avoiding damage to the gingival mucosa and tooth root cementum. This solves the pain points of traditional instruments, such as single mode, large trauma, and poor adaptability, and realizes graded, refined, and minimally invasive treatment of periodontal disease. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the top structure of an auxiliary tool for treating periodontal disease according to the present invention; Figure 2 This is a schematic diagram of the bottom structure of an auxiliary tool for treating periodontal disease according to the present invention; Figure 3 This is a schematic diagram of the unfolded state of an auxiliary tool for the treatment of oral periodontal disease according to the present invention; Figure 4 This is a schematic diagram of the scissor operating part in an auxiliary tool for treating periodontal disease according to the present invention; Figure 5 This is an exploded schematic diagram of the spreading mechanism in an auxiliary tool for treating periodontal disease according to the present invention; Figure 6 This is a schematic diagram of the installation of the angle locking mechanism in an auxiliary tool for the treatment of oral periodontal disease according to the present invention; Figure 7This is a cross-sectional schematic diagram of the second operating handle in an auxiliary tool for treating periodontal disease according to the present invention; Figure 8 This is a schematic diagram of the control rod in an auxiliary tool for treating periodontal disease according to the present invention; Figure 9 This is a schematic diagram of the installation of the scaling mechanism in an auxiliary tool for treating periodontal disease according to the present invention; Figure 10 This is a schematic diagram of the expanded state of the expanded mechanism in an auxiliary tool for treating periodontal disease according to the present invention; Figure 11 This is a schematic diagram of the opening mechanism in an auxiliary tool for treating periodontal disease according to the present invention; Figure 12 This is a model diagram of an auxiliary tool for the treatment of oral periodontal disease according to the present invention; Figure 13 This is a model diagram of the spreading mechanism in an auxiliary tool for treating periodontal disease according to the present invention; Figure 14 This is a model diagram of the second operating handle in an auxiliary tool for treating periodontal disease according to the present invention; Figure 15 This is a perspective view of a control lever in an auxiliary tool for treating periodontal disease according to the present invention.

[0018] In the diagram: 1-First operating handle; 2-Second operating handle; 21-Through hole; 22-Slide groove; 23-Telescopic hole; 3-Spreading mechanism; 31-Bag side plate; 311-Hinge seat; 32-Arc-shaped protective plate; 321-Hinge block; 33-Mounting ring; 34-Tooth support bar; 341-Conical connecting column; 35-Elastic element; 36-Sliding ring; 37-Sliding rod; 4-Tongue pressure plate; 41-Threaded lifting mechanism 42-Driven tooth; 43-Top cap; 5-Scraping mechanism; 51-Brush bundle; 52-Telescopic section; 6-Control rod; 61-Modible outer tube; 611-Transition section; 62-Inner rod; 63-Push block; 64-Mounting clamp; 65-Reset spring; 7-Arc rack; 71-Connecting ball; 72-Locking pin; 73-Spring; 74-Unlocking slider; 8-Drive tooth; 81-Hinge shaft; 9-Finger ring. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the embodiments and accompanying drawings. The illustrative embodiments and descriptions of the present invention are only used to explain the present invention and are not intended to limit the present invention.

[0020] In the following description, numerous specific details are set forth in order to provide a thorough understanding of the invention. However, it will be apparent to those skilled in the art that these specific details are not necessary to practice the invention. In other embodiments, well-known structures, circuits, materials, or methods have not been specifically described in order to avoid obscuring the invention.

[0021] Throughout this specification, references to "an embodiment," "an example," or "an example" mean that a particular feature, structure, or characteristic described in connection with that embodiment or example is included in at least one embodiment of the invention. Therefore, the phrases "an embodiment," "an example," "an example," or "an example" appearing in various places throughout the specification do not necessarily refer to the same embodiment or example. Furthermore, specific features, structures, or characteristics can be combined in one or more embodiments or examples in any suitable combination and / or sub-combination. Moreover, those skilled in the art will understand that the illustrations provided herein are for illustrative purposes and are not necessarily drawn to scale. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0022] In the description of this invention, the terms "front", "rear", "left", "right", "up", "down", "vertical", "horizontal", "high", "low", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the scope of protection of this invention.

[0023] like Figure 1-15 As shown, this invention provides an auxiliary tool for the treatment of periodontal disease, including a scissor fork operating section, which serves as the main operating and supporting structure of the device. It employs a double-handle hinged scissor fork structure to achieve adjustable opening and closing of the head. An angle locking mechanism is located at the tail of the scissor fork operating section to lock the opening range and prevent accidental changes in the opening angle. Two opening mechanisms 3 are positioned opposite each other at a 120° obtuse angle to the head of the scissor fork operating section. This angle design perfectly avoids the occlusal area of ​​the upper and lower teeth while maximizing the opening of the buccal soft tissue, eliminating blind spots. Furthermore, a tongue depressor 4 is located below the hinge of the scissor fork operating section to prevent the tongue from lifting or shifting and obstructing the periodontal treatment area.

[0024] Two scaling mechanisms 5, facing opposite directions, are respectively installed on the inner sides of the two opening mechanisms 3. These mechanisms are used for fine scraping and cleaning of plaque, tartar, and inflammatory granulation tissue in periodontal pockets, root surfaces, and gingival crevices. Each scaling mechanism 5 is connected to a control lever 6 for changing its working mode. The two control levers 6 are respectively located on the outer side of the scissor lift operating section. By controlling the levers 6, the working mode of the scaling mechanism 5 can be changed to achieve rigid scraping and flexible debridement.

[0025] In the above scheme, the scissor lift operating unit includes a first operating handle 1, with a downwardly extending hinge shaft 81 fixedly connected to the middle, i.e., it adopts an integral molding structure to ensure its structural stability. A drive tooth 8 is fixedly connected to the lower end of the hinge shaft 81. A second operating handle 2 is rotatably connected to the hinge shaft 81 in the middle, realizing the free opening and closing rotation of the second operating handle 2 relative to the first operating handle 1, which can meet different oral cavity opening needs. A driven tooth 42 is rotatably connected through a connecting cylinder in the middle, and the driven tooth 42 meshes with the drive tooth 8. The tongue depressor 4 is connected to the driven tooth 42. The opening and closing of the first operating handle 1 and the second operating handle 2 drives the tongue depressor 4 to fix the patient's tongue.

[0026] The first operating handle 1 and the second operating handle 2 are both made of medical-grade stainless steel, which has the characteristics of corrosion resistance, high strength and easy high-temperature sterilization. The surface of the handle is treated with anti-slip frosting to prevent medical staff from slipping during operation. The tail of the handle has a rounded transition structure without sharp edges, which improves the grip comfort.

[0027] The connecting cylinder is internally threaded with a threaded lifting rod 41. The connecting cylinder and the driven tooth 42 are integrally formed. The connecting cylinder has an internal thread that is threaded to the external thread of the threaded lifting rod 41. A top cap 43 is fixedly connected to the upper end of the threaded lifting rod 41. The tongue depressor 4 is fixedly connected to the lower end of the threaded lifting rod 41, and a groove for accommodating the tip of the patient's tongue is provided at the bottom of the tongue depressor 4.

[0028] Specifically, when medical staff open and close the first operating handle 1 and the second operating handle 2, the driving tooth 8 rotates with the hinge shaft 81, thereby driving the driving tooth 8 to rotate. The driven tooth 42 rotates with the driving tooth 8, thereby driving the connecting cylinder to rotate. Due to the threaded connection between the connecting cylinder and the threaded lifting rod 41, and the patient's tongue tip being placed in the groove at the bottom of the tongue depressor 4, the threaded lifting rod 41 will be forced to rise and fall during the rotation of the connecting cylinder. Thus, the patient's tongue tip can be pressed against the bottom of the patient's mouth as the threaded lifting rod 41 drives the tongue depressor 4 to descend, preventing the tongue tip from lifting or deflecting and affecting the medical staff's field of vision.

[0029] In the above scheme, the spreading mechanism 3 includes a mounting ring 33, which is a rigid medical plastic ring structure, fixedly connected to the head of the scissor operating part, and set at an obtuse angle with the head of the scissor operating part. The structure is non-deformable, lightweight, and will not cause pressure on the patient's oral cavity. A buccal side plate 31 is connected to its outer side through several elastic elements 35. The inner side of the buccal side plate 31 is connected to the curettage mechanism 5. The elastic elements 35 are medical high-elasticity silicone springs, which have good telescopic and reset performance, so that the buccal side plate 31 can adaptively fit the inner wall of the patient's buccal cavity, adapt to the width of different patients' oral cavities, and at the same time buffer the hard extrusion force to avoid pressure damage to the buccal mucosa.

[0030] The dental support strip 34, with a trapezoidal structure that is narrower on the inside and wider on the outside, is connected to the inner side of the buccal plate 31 via a tapered connecting post 341. The tapered connecting post 341 passes through the center of the mounting ring 33. The dental support strip 34 is made of a rigid, non-slip material. Its narrow inner side conforms to the neck of the tooth, while its wide outer side supports the soft tissue of the cheek. This provides stable support for the oral cavity between the upper and lower teeth, preventing tooth closure from interfering with the treatment procedure and increasing the exposed area of ​​the periodontal surgical zone. Simultaneously, the trapezoidal structure of the dental support strip 34 can distribute local pressure, avoiding single-point pressure on the teeth and gums that could cause soreness and discomfort.

[0031] Two arc-shaped protective plates 32 are provided, which are respectively hinged to the upper and lower sides of the cheek side plate 31. A sliding rod 37 perpendicular to the mounting ring 33 is provided on the inner side of the plate. The sliding rod 37 is slidably connected in the sliding rings 36 on the upper and lower sides of the mounting ring 33.

[0032] Specifically, hinge seats 311 are respectively provided on the upper and lower sides of the cheek side plate 31, and hinge blocks 321 are provided on the connecting side of the arc-shaped protective plate 32. The hinge blocks 321 are perpendicular to the end face of the connecting side of the arc-shaped protective plate 32 and extend inward to the arc-shaped protective plate 32. The hinge blocks 321 are hinged in the hinge seats 311 through the connecting shaft to facilitate the inward and outward rotation of the arc-shaped protective plate 32. At the same time, one end of the sliding rod 37 is fixedly connected to the inner end face of the hinge block 321, and the other end extends inward to the other side of the arc-shaped protective plate 32 and passes through the sliding rings 36 in the middle of the upper and lower sides of the mounting ring 33. The sliding rings 36 are connected to the mounting ring 33 by hinges, which can accommodate the inward and outward rotation of the arc-shaped protective plate 32 and provide a limiting and guiding function for the inward and outward rotation of the arc-shaped protective plate 32, avoiding the lack of effective support for the rotation of the arc-shaped protective plate 32.

[0033] In the actual treatment of periodontal disease in a patient's mouth, the opening mechanism 3 of this device must first be placed into the appropriate operating position inside the patient's mouth. After placement, the buccal soft tissue of the patient's cheek will naturally exert a compressive force on the buccal plate 31 fixed to the outside of the mounting ring 33. Under this compressive force, the buccal plates 31 on both sides of the device will move inward along the sliding direction. During the inward movement of the buccal plates 31, since the sliding rod 37 connected to the inside of the hinge block passes through the movable hinged sliding ring 36, the linkage between the sliding rod 37 and the sliding ring 36 can be used to drive the arc-shaped protective plate 32 fixedly connected to the hinge block to complete the flipping and opening action along the hinge axis. The outwardly flipped and opened arc-shaped protective plate 32 will block and open the patient's buccal soft tissue, thereby fully exposing the periodontal disease area that needs to be treated, effectively reducing the blind spot of the doctor during the operation, and improving the convenience and accuracy of the treatment operation. At the same time, when the buccal plates 31 are squeezed inward, they can also simultaneously drive the tooth support strip 34 set between the buccal plates to retract inward, ultimately opening the target tooth in the patient's mouth to a certain degree that facilitates operation, providing sufficient operating space for subsequent periodontal treatment operations.

[0034] In the above scheme, the control rod 6 includes an inner rod 62, which is a rigid, smooth metal rod with high bending strength and is not easily deformed, ensuring transmission stability. It is positioned on the outer side of the first operating handle 1 and the second operating handle 2 along the direction of the scissor lift operating section, and connected to both ends of the two parts by a mounting clamp 64. The movable outer tube 61, made of lightweight medical tubing, is sleeved on the outer side of the inner rod 62 and can slide back and forth along the axial direction of the inner rod 62 to adjust the head scraping mechanism 5. A transition section 611, adapted to the corner of the inner rod 62, is provided on the outer tube. The transition section 611 uses a structure of several hinged splicing rings to perfectly match the corner curvature of the first operating handle 1 and the second operating handle 2, eliminating structural jamming dead angles and ensuring smooth, unobstructed sliding of the movable outer tube 61. The scraping mechanism 5 is located at the head of the movable outer tube 61, and its mode is changed by sliding the movable outer tube 61.

[0035] The push block 63 is connected to the tail of the movable outer tube 61 and is used to push the movable outer tube 61 forward under the action of thrust. A return spring 65 is provided at the tail connection. The two ends of the return spring 65 are connected to the push block 63 and the mounting clamp 64 respectively. It is stretched during the forward sliding of the movable outer tube 61, and then drives the movable outer tube 61 to slide backward to reset after the thrust disappears. The push block 63 is located on the side of the finger ring 9 at the tail of the scissor lift operation part. The finger ring 9 is located at the tail end of the first operating handle 1 and the second operating handle 2. The push block 63 is located on the side of the finger ring 9, and its corresponding surface to the inner side of the finger ring 9 is provided with an arc surface adapted to the inner wall of the finger ring 9. This arc surface structure can better fit the finger application part, making it easier for the operator to squeeze the push block 63 with their fingers to force the movable outer tube 61 to complete the sliding action along the inner rod 62.

[0036] In the above scheme, the scraping mechanism 5 includes a telescopic section 52, the front end of which is fixed to the head of the inner rod 62, and the tail end is connected to the head of the movable outer tube 61, and is integrally sleeved on the head end of the inner rod 62; as the movable outer tube 61 slides along the inner rod 62, it can drive the telescopic section 52 to extend and retract. The brush bundle 51 is made of nickel-titanium wire into a conical structure with a tip diameter of 0.05 mm and a root diameter of 0.15 mm, and is linearly and equidistantly distributed on the telescopic section 52.

[0037] Specifically, as the movable outer tube 61 slides along the inner rod 62, it will cause the telescopic section 52 to extend and retract, thereby changing the distance between two adjacent brush bundles 51, thus increasing or decreasing the distribution density of the brush bundles 51. A high density will increase the overall hardness of the brush bundles 51 to achieve the purpose of rigid scraping, while a low density will decrease the overall hardness of the brush bundles 51 to achieve the purpose of flexible debridement.

[0038] In the above scheme, the angle locking mechanism includes an arc-shaped rack 7, one end of which is ball-hinged to the inner side of the second operating handle 2 of the scissor lift operating part via a connecting ball 71, allowing it to freely deflect slightly to adapt to the opening and closing angle. The other end passes through the through hole 21 inside the first operating handle 1 of the scissor lift operating part. As the handle opens and closes, the arc-shaped rack 7 can freely extend and retract within the through hole 21. A locking pin 72 is slidably connected to the telescopic hole 23 on the side wall of the through hole 21, and a spring 73 is connected to its tail. Under normal conditions, the spring 73 is in a slightly relaxed state, pushing the head of the locking pin 72 to extend and engage in the tooth gap of the arc-shaped rack 7, thereby achieving angle self-locking.

[0039] The angle locking mechanism also includes an unlocking slider 74, which is connected to the locking pin 72 via a connecting rod and is located outside the second operating handle 2. The connecting rod is slidably connected in the groove 22 that communicates with the telescopic hole 23. Medical staff only need to move the unlocking slider 74 with one hand to drive the locking pin 72 to compress the spring 73 and disengage from the rack teeth, thus quickly unlocking the mechanism. The opening and closing angle of the handle can then be freely adjusted. After adjustment, releasing the unlocking slider 74 will automatically relock the mechanism. The operation is convenient and efficient, and it meets the needs of continuous clinical diagnosis and treatment.

[0040] Specific implementation examples: The following steps are included when implementing this oral periodontal disease treatment aid: 1) Tool placement The tool head opening mechanism 3 is smoothly placed into the periodontal treatment area of ​​the patient's oral cavity, so that the two opening mechanisms 3 on both sides correspond to the positions of the patient's left and right cheeks. After the device is in place, the soft tissue on the patient's cheek side naturally squeezes the buccal side plate 31 of the opening mechanism 3, and the buccal side plate 31 overcomes the elastic force of the elastic element 35 and gathers inward to fit, so as to achieve adaptive adaptation to the width of the patient's oral cavity.

[0041] During the inward convergence of the buccal plate 31, the hinged engagement between the hinge seat 311 and the hinge block 321 drives the sliding rod 37 to slide along the sliding ring 36, causing the upper and lower arc-shaped protective plates 32 to flip outward and open, blocking and opening the patient's buccal and lip soft tissues outward, thoroughly exposing the periodontal surgical area and eliminating blind spots in the operation field.

[0042] At the same time, the buccal plate 31 drives the tooth support strip 34 to adaptively retract and align itself through the tapered connecting post 341. The trapezoidal strip tooth support strip 34 stably supports the gap between the patient's upper and lower teeth, preventing tooth occlusion from interfering with the treatment operation and forming a stable operating space.

[0043] 2) Limiting tongue During the insertion of the instrument into the patient's oral cavity, the groove at the bottom of the tongue depressor 4 is aligned with the tip of the patient's tongue. Combined with the opening and closing states of the first operating handle 1 and the second operating handle 2, the driving tooth 8 rotates in the forward direction, driving the driven tooth 42 to rotate. With the help of the threaded transmission structure of the threaded lifting rod 41 and the connecting cylinder, the tongue depressor 4 is precisely pressed down, accurately accommodating and limiting the tip of the patient's tongue within the groove at the bottom of the tongue depressor 4. This ensures that the tongue body is stably attached to the bottom of the oral cavity, completely eliminating the problem of the tongue body lifting up, shifting, or shaking and obstructing the periodontal treatment area, and ensuring a clear field of vision throughout the entire treatment process.

[0044] 3) Open the lock Once the oral cavity opening, surgical area exposure, and tongue restraint are all adjusted to the optimal treatment position, release the unlocking slider 74. At this time, the spring 73 inside the telescopic hole 23 elastically returns to its original position, pushing the head of the locking pin 72 to extend and engage with the interdental space of the arc-shaped rack 7. The cooperation between the locking pin 72 and the arc-shaped rack 7 achieves bidirectional self-locking fixation, locking the opening angle of the first operating handle 1 and the second operating handle 2. During treatment, there is no rebound or deviation of the angle, eliminating the need for medical staff to continuously grip the handle, significantly reducing operational fatigue and ensuring continuous stability of the surgical area.

[0045] 4) Scraping procedure Based on the severity of the patient's periodontal disease, medical staff switch between scaling and root planing modes by pushing and pulling the outer control lever 6, enabling them to perform precise treatment procedures. 1. Rigid Scaling Mode: For severe periodontal disease with thick tartar and extensive inflammatory granulation tissue, the movable outer tube 61 is pushed forward by the push block 63, causing the movable outer tube 61 to slide axially along the inner rod 62, which in turn causes the telescopic section 52 to retract, reducing the spacing between adjacent brush bundles 51, increasing the overall distribution density and structural support rigidity of the brush bundles 51, and using high-density nickel-titanium wire brush bundles 51 to powerfully scrape away stubborn tartar and thickened lesion tissue.

[0046] 2. Gentle cleaning mode: For mild periodontal disease with fragile gingival mucosa, only superficial plaque, and mild periodontal inflammation, the movable outer tube 61 is pulled backward by the restoring elasticity of the reset spring 65, which stretches and unfolds the telescopic section 52, increases the spacing between adjacent brush bundles 51, and reduces the overall hardness of the brush bundles 51. In a gentle state, it can gently clean the superficial periodontal pocket, root surface, and gingival gap, avoiding damage to cementum and delicate gingival mucosa.

[0047] During the treatment, the movable outer tube 61 can be pushed and pulled in real time according to the lesion condition of different lesions, and the dual working modes can be flexibly switched to complete the periodontal cleaning and scaling auxiliary operations of the whole area.

[0048] 5) Reset and remove After the periodontal treatment is completed, the unlocking slider 74 is moved again with one hand to release the self-locking state of the angle locking mechanism. The first operating handle 1 and the second operating handle 2 are slowly retracted, causing the two-sided opening mechanism 3 to slowly retract and reset. At this time, the elastic element 35 elastically resets, driving the buccal plate 31, the arc-shaped protective plate 32, and the tooth support strip 34 back to their initial state, releasing the support and restriction on the patient's oral soft tissue and teeth. Subsequently, the drive tooth 8 is driven to rotate in the opposite direction, causing the threaded lifting rod 41 to move upward, raising the tongue depressor 4, releasing the restriction on the patient's tongue tip. Finally, the device is smoothly removed from the patient's mouth, completing a single periodontal auxiliary treatment operation. The device can be disassembled, cleaned, disinfected, and stored for reuse.

[0049] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of the present invention. It should be understood that the above description is only a specific embodiment of the present invention and is not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. An auxiliary tool for treating periodontal disease, comprising a scissor-operated part and an angle locking mechanism disposed at the tail of the scissor-operated part, characterized in that, The scissor lift operating part has two opening mechanisms (3) facing each other at its head, and a tongue depressor (4) is provided below its hinge. The two opening mechanisms (3) are respectively provided with two scraping mechanisms (5) facing opposite directions on their inner sides. Each scraping mechanism (5) is connected to a control lever (6) for changing the working mode of the scraping mechanism (5). The two control levers (6) are respectively provided on the outer side of the scissor lift operation section.

2. The oral periodontal disease treatment aid according to claim 1, characterized in that, The scissor lift operation unit includes: The first operating handle (1) has a hinge shaft (81) that extends downwards fixedly connected in the middle, and a drive tooth (8) is fixedly connected at the lower end of the hinge shaft (81). The second operating handle (2) is rotatably connected to the hinge shaft (81) in the middle, and a driven tooth (42) is rotatably connected through the connecting cylinder in the middle. The driven tooth (42) meshes with the driving tooth (8), and the tongue depressor (4) is connected to the driven tooth (42).

3. The oral periodontal disease treatment aid according to claim 2, characterized in that, The connecting cylinder is internally threaded with a threaded lifting rod (41), and a top cap (43) is fixedly connected to the upper end of the threaded lifting rod (41). The tongue depressor (4) is fixedly connected to the lower end of the threaded lifting rod (41), and a groove for accommodating the tip of the patient's tongue is provided at the bottom of the tongue depressor (4).

4. The oral periodontal disease treatment aid according to claim 1, characterized in that, The spreading mechanism (3) includes: Mounting ring (33) is fixedly connected to the head of the scissor operating part and is set at an obtuse angle to the head of the scissor operating part. A cheek plate (31) is connected to its outer side through several elastic elements (35), and its inner side is connected to the scraping mechanism (5). The dental support bar (34) has a trapezoidal bar structure with a smaller inner side and a larger outer side. It is connected to the inner side of the buccal plate (31) by a tapered connecting post (341). The tapered connecting post (341) passes through the center of the mounting ring (33). Two arc-shaped protective plates (32) are provided and are respectively hinged to the upper and lower sides of the cheek side plate (31). A sliding rod (37) perpendicular to the mounting ring (33) is provided on its inner side. The sliding rod (37) is slidably connected to the sliding ring (36) on the upper and lower sides of the mounting ring (33).

5. The oral periodontal disease treatment aid according to claim 1, characterized in that, The control lever (6) includes: The inner rod (62) is arranged on the outside of the first operating handle (1) and the second operating handle (2) of the scissor lift operating part, and is connected to the two ends of the two parts by a mounting clamp (64); The movable outer tube (61) is sleeved on the outside of the inner rod (62) and can slide back and forth along the axial direction of the inner rod (62). A transition section (611) adapted to the corner of the inner rod (62) is provided on it. The scraping mechanism (5) is provided at the head of the movable outer tube (61). A push block (63) is connected to the tail of the movable outer tube (61), and a return spring (65) is provided at the tail connection. The push block (63) is located on the side of the finger ring (9) at the tail of the scissor operating part.

6. The oral periodontal disease treatment aid according to claim 5, characterized in that, The scraping mechanism (5) includes: The telescopic section (52) is connected to the head of the movable outer tube (61) and sleeved on the end of the inner rod (62); The brush bundle (51) has a conical structure and is linearly and equidistantly distributed on the telescopic section (52).

7. The oral periodontal disease treatment aid according to claim 1, characterized in that, The angle locking mechanism includes: The arc-shaped rack (7) has one end hinged to the inside of the second operating handle (2) of the scissor lift operation unit via a connecting ball (71), and the other end passes through the through hole (21) inside the first operating handle (1) of the scissor lift operation unit. A locking pin (72) is slidably connected in the telescopic hole (23) on the side wall of the through hole (21), and a spring (73) is connected to its tail.

8. The oral periodontal disease treatment aid according to claim 7, characterized in that, The angle locking mechanism also includes an unlocking slider (74), which is connected to the locking pin (72) via a connecting rod and is located outside the second operating handle (2). The connecting rod is slidably connected in a groove (22) that communicates with the telescopic hole (23).

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