Oral cavity observation reflector assembly

Abstract

The invention relates to an oral cavity observation reflective mirror assembly, and belongs to the technical field of oral cavity medical equipment, the oral cavity observation reflective mirror assembly comprises a circular shell and a handle obliquely and upwards arranged on the outer side of the circular shell, a stand column is vertically and fixedly arranged in the circular shell and is coaxial with the center line of the circular shell, and a circular lens is coaxially arranged right above the stand column; the lower side of the circular lens is movably connected with the upper end of the stand column through the ball head mechanism, one end of the supporting arm is arranged on the stand column in a sleeving mode, the top block is vertically arranged on the upper side of the supporting arm, and the output end of the driving mechanism is connected with the supporting arm. The circular lens is inclined towards one side by using the supporting arm and the top block, the inclined circular lens is used for reflecting light to a to-be-observed area or performing mirror image display on the to-be-observed area, and the driving mechanism is used for driving the supporting arm to rotate, so that the whole area in the oral cavity is covered by examination, and frequent deflection is avoided from touching tissues in the oral cavity of a patient; the oral cavity observation comfort is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of oral medical equipment, and in particular relates to an oral observation reflector assembly. Background Art

[0002] The mouth is the first part of the human digestive system, primarily involved in actions such as chewing, swallowing, and speech production. Therefore, oral health plays a crucial role in overall health. It not only affects the function and aesthetics of the oral cavity but also has a profound impact on overall health. Oral health inspections can help promptly identify and assess potential oral problems, preventing the onset or worsening of oral diseases. Oral diseases include periodontal disease (gingivitis and periodontitis), pulpitis, caries, tartar, and oral leukoplakia.

[0003] During an oral examination, the patient's lips and jaw are typically examined first, followed by the oral mucosa, teeth, and gums. Due to the complex structure and confined space within the oral cavity, doctors have a poor field of view, particularly around the back teeth and beneath the gums. These areas are difficult to see with the naked eye, making it easy for doctors to miss or err, reducing the accuracy of the oral examination.

[0004] At present, dental mirrors are often used to assist in situations where the field of view inside the oral cavity is poor or some areas cannot be observed. The mirror surface of the dental mirror can not only reflect light to illuminate the areas inside the oral cavity with poor field of view, but also mirror the back or side areas of the oral cavity to ensure that the inside of the oral cavity can be observed. The dental mirror plays a positive role in oral diagnosis and treatment.

[0005] When using a dental mirror, a doctor holds the mirror's handle and slowly inserts one end of the mirror into the area to be observed inside the patient's mouth. The handle then tilts the mirror to adjust its direction, allowing it to reflect light to different locations or create a mirror image. However, adjusting the mirror's direction with the handle can easily cause the mirror to come into contact with the patient's oral tissue, causing discomfort. This is especially true for patients with existing oral diseases, where contact with the affected area can cause significant pain. Summary of the Invention

[0006] In view of this, the present invention provides an oral observation mirror assembly to address the deficiencies in the prior art. The present invention enables the inspection to cover the entire area inside the oral cavity, ensures the accuracy of the oral examination, avoids touching the tissue inside the patient's oral cavity, and improves the comfort of oral observation.

[0007] The technical solution of the present invention is: an oral observation mirror assembly, comprising a circular shell and a handle arranged at an angle upward on the outside of the circular shell, one end of the handle being connected to the side wall of the circular shell, the circular shell is flat and its top is penetrated, the column is vertically fixed in the circular shell and coaxial with its center line, the circular lens is coaxially arranged directly above the column, the lower side of the circular lens is movably connected to the upper end of the column through a ball head mechanism, the support arm is horizontally arranged directly below the circular lens, one end of the support arm is sleeved on the column, the support arm is rotatably connected to the column around the center line of the column, the top block is vertically arranged on the upper side of the support arm, one end of the top block is connected to the support arm, and the other end abuts against the lower side of the circular lens to tilt the circular lens, and the tilted circular lens is used to observe the inner tissue of the oral cavity, the driving mechanism is arranged on the circular shell, and the output end of the driving mechanism is connected to the support arm, for driving the support arm to rotate to change the tilt direction of the circular lens.

[0008] Preferably, the lower side of the circular lens is convex, and a slide groove is provided on the support arm along its length direction and located on the side of the support arm away from the column. The top block is arranged on the slide groove and is slidably connected to it. A linear displacement mechanism is provided on the support arm, and the output end of the linear displacement mechanism is connected to the top block, which is used to drive the top block to move to change the inclination angle of the circular lens.

[0009] Preferably, the linear displacement mechanism includes: a first piston, a first piston rod, a countersunk hole is opened at one end of the support arm along its length direction, the first piston is arranged in the countersunk hole and is slidingly and sealedly connected to it, one end of the first piston rod is fixedly connected to the first piston, and the other end extends out of the countersunk hole along the center line direction of the countersunk hole and is connected to the top block, and the bottom of the countersunk hole is connected to the external gas-liquid suction element through a pipeline to drive the first piston to move back and forth in the countersunk hole.

[0010] Preferably, the gas-liquid flushing and suction mechanism includes: a second piston, a second piston rod, a cavity is opened inside the handle along its length direction, the second piston is arranged in the cavity and is slidingly and sealedly connected to it, one end of the second piston rod is connected to the side of the second piston away from the circular shell, and the other end extends out of the handle along the center line direction of the cavity, the second piston rod is slidingly and sealedly connected to the handle, and the bottom of the countersunk hole is connected to the side of the cavity away from the second piston rod through a pipe.

[0011] Preferably, a connecting cap is sleeved on one end of the handle away from the circular shell, and the connecting cap is rotatably connected to the handle. A thread is provided on the second piston rod, and the second piston rod passes through the connecting cap and is threadedly connected thereto.

[0012] Preferably, an annular limit plate is fixedly provided on the top of the circular shell and is coaxial with the center line of the circular shell. An annular elastic support is vertically provided between the lower side of the annular limit plate and the circular lens and is coaxial with the center line of the annular limit plate. One end of the annular elastic support is fixedly connected to the circular lens, and the other end abuts against the lower side of the annular limit plate.

[0013] Preferably, the driving mechanism includes: a gear, a toothed synchronous belt, two connecting ropes and a ring. The gear is coaxially mounted on the column and is rotatably connected to the column. The gear is fixedly connected to the support arm. The toothed synchronous belt is meshed with the side of the gear away from the handle. One end of the two connecting ropes is respectively connected to the end of the toothed synchronous belt. The two rings are mounted on the handle and are slidably connected to the handle. The other end of the connecting rope is connected to the ring one-to-one.

[0014] Preferably, an elastic damping member is connected between the two rings.

[0015] Compared with the prior art, the present invention provides an oral observation mirror assembly, which is used in conjunction with a handle, a circular shell, a column and a circular lens. The handle can be used to extend the circular lens into the patient's oral cavity, and then the support arm and the top block can be used to tilt the circular lens to one side. The tilted circular lens is used to reflect light to the area to be observed or to display it in a mirror image, thereby inspecting areas with poor visual field inside the oral cavity and some areas that cannot be directly observed. The driving mechanism is used to drive the support arm to rotate, so that the top block can change the tilt direction of the circular lens at any position. The tilt direction of the circular lens can be flexibly adjusted according to needs, so that the inspection covers the entire area inside the oral cavity, ensuring the accuracy of the oral examination. During the observation operation in this area, the circular shell and the handle always remain stationary to avoid frequent deflection and touching the tissue inside the patient's oral cavity, preventing the patient from experiencing discomfort or pain during the examination. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a top view of the reflector assembly of the present invention; Figure 2 is a front view of the reflector assembly of the present invention; Figure 3 This invention Figure 1 AA section view in; Figure 4 This invention Figure 2 BB cross-sectional view in; Figure 5 This invention Figure 2 The CC section view in the figure; Figure 6 This invention Figure 3 The enlarged schematic diagram of point D in FIG. Figure 7 is a front view of the support arm of the present invention; Figure 8 is a top view of the support arm of the present invention; Figure 9 is a side view of the support arm of the present invention; Figure 10 It is a schematic diagram of the internal structure of the handle of the present invention. DETAILED DESCRIPTION

[0017] The present invention provides an oral observation mirror assembly, which is combined with Figures 1 to 10 The present invention is described with reference to a structural schematic diagram of FIG.

[0018] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the technical solutions of 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 understood as limiting the present invention.

[0019] Oral health plays a crucial role in overall health. It not only affects the function and aesthetics of the oral cavity but also has a profound impact on overall health. Relatively dry areas with low humidity can lead to a lack of oral moisture, resulting in dry mouth (xerostomia). Dry mouth not only affects oral comfort but also fosters bacterial growth, increasing the risk of oral diseases such as caries and gingivitis. Furthermore, the diet in these areas tends to be heavy on pasta, preserved foods, and meat, which can lead to an acidic environment in the mouth, contributing to a range of health issues such as tooth decay. Oral health monitoring through oral observation can promptly identify and assess potential oral problems, preventing the occurrence or worsening of oral diseases.

[0020] Currently, dental mirrors are often used to assist in observing the inside of the oral cavity, where the field of view is poor or some areas cannot be observed. When using a dental mirror, the doctor holds the mirror's handle and slowly inserts one end of the mirror into the area to be observed inside the patient's mouth. The handle then tilts the mirror to adjust its direction, allowing it to reflect light to different locations or create a mirror image. However, adjusting the mirror's direction with the handle can easily cause the mirror to come into contact with the patient's oral tissue, causing discomfort. This is especially true when the patient has an oral disease, as the mirror's contact with the affected area can cause unbearable pain.

[0021] Based on the above problems, an embodiment of the present invention provides an oral observation mirror assembly, which is used in conjunction with a handle, a circular shell, a column and a circular lens. The handle can be used to extend the circular lens into the patient's oral cavity, and then the support arm and the top block can be used to tilt the circular lens to one side. The tilted circular lens is used to reflect light to the area to be observed or to display a mirror image of it, thereby inspecting the areas inside the oral cavity with poor visual field and some areas that cannot be directly observed. The driving mechanism is used to drive the support arm to rotate, so that the top block can change the tilt direction of the circular lens at any position. The tilt direction of the circular lens can be flexibly adjusted according to needs, so that the inspection covers the entire area inside the oral cavity, ensuring the accuracy of the oral examination. During the observation operation in this area, the circular shell and the handle always remain stationary to avoid frequent deflection and touching the tissue inside the patient's oral cavity, preventing the patient from feeling discomfort or pain during the examination.

[0022] Reference Figure 1 、 Figure 3 , Figure 1 is a top view of the reflector assembly of this embodiment, Figure 3 The AA sectional view of the reflector assembly of this embodiment is an oral observation reflector assembly, comprising a circular shell 1 and a handle 2 arranged obliquely upward on the outside of the circular shell 1, one end of the handle 2 is connected to the side wall of the circular shell 1, the circular shell 1 is flat and has a through-set at the top, a column 3 is vertically fixed in the circular shell 1 and coaxial with its center line, a circular lens 4 is coaxially arranged directly above the column 3, the lower side of the circular lens 4 is movably connected to the upper end of the column 3 through a ball head mechanism, a support arm 5 is horizontally arranged directly below the circular lens 4, one end of the support arm 5 is sleeved on the column 3, and the support arm 5 is rotatably connected to the column 3 around the center line of the column 3, a top block 6 is vertically arranged on the upper side of the support arm 5, one end of the top block 6 is connected to the support arm 5, and the other end abuts against the lower side of the circular lens 4 to tilt the circular lens 4, and the tilted circular lens 4 is used to observe the tissue inside the oral cavity, a driving mechanism is arranged on the circular shell 1, and the output end of the driving mechanism is connected to the support arm 5, for driving the support arm 5 to rotate to change the tilt direction of the circular lens 4.

[0023] In this embodiment, when the doctor uses the reflector assembly to observe the inside of the patient's mouth, after the patient opens his mouth or uses an opener to open it, the doctor holds the handle 2 and slowly extends the end close to the circular shell 1 into the area to be examined inside the patient's mouth, and uses the driving mechanism to drive the support arm 5 to rotate, so that the top block 6 moves to change the tilt direction of the circular lens 4. When the tilted circular lens 4 reflects light to a position with poor vision or directly mirrors the position that cannot be observed, the driving mechanism is stopped to drive the support arm 5 to rotate, and the doctor can observe whether there is a lesion at that position. Repeating the above process of using the driving mechanism to adjust the tilt direction of the circular lens 4, the area can be fully observed. After the inspection of the current area is completed, the handle 2 is used to move one side of the circular lens 4 to the next area to be inspected, so that the inspection can cover the entire area inside the oral cavity, and during the observation of one area, the circular shell 1 and the handle 2 always remain motionless to avoid frequent deflection and touching the tissue inside the patient's mouth, preventing the patient from feeling discomfort or pain during the inspection, and ensuring the accuracy of the oral examination.

[0024] Specifically, in this embodiment, the thickness of the circular shell 1 is 5mm-10mm, and its outer diameter is 10mm-20mm. The circular shell 1 and the handle 2 can be integrally formed of plastic, and the surfaces of the two are polished and smoothed to further improve the comfort of oral examination.

[0025] In the above-mentioned embodiment, the inclination direction of the circular lens 4 is adjusted by the driving mechanism. When observing different positions of the same area inside the oral cavity, since the inclination angle of the circular lens 4 is the same, there may be insufficient light when the circular lens reflects light to the position to be observed, resulting in poor field of view or incomplete mirror display, which will reduce the accuracy of the oral examination.

[0026] Reference Figure 8 , Figure 8 This is a top view of the support arm of this embodiment. Based on this, this embodiment is a further optimization scheme based on the above embodiment. In this embodiment, the lower side of the circular lens 4 is convex, and a slide groove 50 is provided on the support arm 5 along its length direction, and is located on the side of the support arm 5 away from the column 3. The top block 6 is arranged on the slide groove 50 and is slidably connected to it. A linear displacement mechanism is provided on the support arm 5, and the output end of the linear displacement mechanism is connected to the top block 6, which is used to drive the top block 6 to move to change the inclination angle of the circular lens 4.

[0027] In this embodiment, by setting the lower side of the circular lens 4 to a convex surface, and then utilizing the slide groove 50 on the support arm 5, the linear displacement mechanism can drive the top block 6 to move along the slide groove 50. The inclination angle of the circular lens 4 can be changed according to observation needs, thereby increasing the range of light reflected by the circular lens 4 and direct mirror display, avoiding poor observation effects at some positions inside the oral cavity, and further improving the accuracy of oral examination.

[0028] Specifically, refer to Figure 7 , Figure 7 This is a front view of the support arm of this embodiment. In this embodiment, a guide groove 51 is horizontally opened at one end of the support arm 5 away from the column 3. The guide groove 51 is parallel to and connected with the slide groove 50. A slider 52 is provided on the guide groove 51 and slides along its length. The bottom of the top block 6 is fixedly connected to the slider 52.

[0029] Specifically, in this embodiment, a groove is provided at the upper end of the top block 6, and a sphere 61 is provided on the groove and is slidably connected to the groove. The top block 6 abuts against the lower side of the circular lens 4 through the sphere 61. When the lower side of the circular lens 4 is convex, the sphere 61 is used to improve the smoothness of the top block 6 in adjusting the tilt angle and direction of the circular lens 4.

[0030] Reference Figure 5 , Figure 5 This is a CC sectional view of the reflector assembly of this embodiment. In this embodiment, a specific structural composition of a linear displacement mechanism is given, which includes: a first piston 53, a first piston rod 54, and a countersunk hole 55 is opened at one end of the support arm 5 along its length direction. The first piston 53 is arranged in the countersunk hole 55 and is slidingly sealed therewith. One end of the first piston rod 54 is fixedly connected to the first piston 53, and the other end extends out of the countersunk hole 55 along the center line direction of the countersunk hole 55 and is connected to the top block 6. The bottom of the countersunk hole 55 is connected to an external gas-liquid flushing and suction element through a pipeline to drive the first piston 53 to move back and forth in the countersunk hole 55.

[0031] In this embodiment, a linear displacement mechanism is formed by using a first piston 53, a first piston rod 54 and a gas-liquid flushing and suction element. The gas or liquid is injected into and sucked out of the countersunk hole 55 by using the gas or liquid flushing and suction element, so that the gas or liquid drives the first piston 53 in the countersunk hole 55 to move back and forth, and then the first piston rod 54 is used to drive the top block 6 to move along the slide groove 50. The linear displacement mechanism composed of this structure uses gas and liquid to drive the top block 6 to move, avoiding the use of existing rotating power elements (motor) to drive, thereby preventing the vibration of the rotating power element itself from causing the vibration of the reflector assembly, and then causing the light reflected on the circular lens 4 or the mirror image display to shake, further improving the accuracy of oral examination.

[0032] Reference Figure 9 , Figure 9This is a side view of the support arm of this embodiment. Specifically, in this embodiment, the countersunk hole 55 is located at one end of the support arm 5 close to the column 3. There are two countersunk holes 55 on the outside of the column 3. The two first piston rods 54 are fixedly connected to the connecting plate 57 at one end located on the outside of the countersunk hole 55. The guide groove 51 in the aforementioned embodiment passes through the width direction of the support arm 5, and the two ends of the slider 52 extend from the penetration direction of the guide groove 51. Two connecting rods 56 are horizontally connected between the two ends of the slider 52 and the connecting plate 57 to enable the first piston rod 54 to drive the top block 6 to move. Limiting grooves are provided at both ends of the connecting plate 57, and the connecting rods 56 are located in the limiting grooves and are slidably connected thereto.

[0033] Reference Figure 10 , Figure 10 This is a schematic diagram of the internal structure of the handle of this embodiment. This embodiment provides a specific structural composition of a gas-liquid flushing and suction mechanism, which includes: a second piston 21, a second piston rod 22, and a cavity 23 is opened inside the handle 2 along its length direction. The second piston 21 is arranged in the cavity 23 and is slidingly and sealedly connected to it. One end of the second piston rod 22 is connected to the side of the second piston 21 away from the circular shell 1, and the other end extends out of the handle 2 along the center line direction of the cavity 23. The second piston rod 22 is slidingly and sealedly connected to the handle 2, and the bottom of the counterbore 55 is connected to the side of the cavity 23 away from the second piston rod 22 through a pipe.

[0034] In this embodiment, the second piston 21, the second piston rod 22 and the cavity 23 inside the handle 2 are used in conjunction with each other. When the doctor uses the reflector assembly, he manually drives the second piston rod 22 to move, so that the second piston 21 moves in the cavity 23. The cavity 23 is connected to the countersunk hole 55 through a pipe, and then the gas or liquid is pushed into or sucked out of the countersunk hole 55, so that the first piston 53 moves in the countersunk hole 55.

[0035] The gas-liquid flushing and suction mechanism in this embodiment uses gas and liquid to drive the first piston 53 to move in the counterbore 55, and also does not use the existing rotating power element (motor) to drive it, so as to prevent the vibration of the rotating power element itself from causing the vibration of the mirror assembly, which in turn causes the light reflected on the circular lens 4 or the mirror image display to shake, thereby further improving the accuracy of oral examination.

[0036] Specifically, in the embodiment itself, the cavity 23 is located on the side of the second piston 21 away from the second piston rod 22, the counterbore 55 is located on the side of the first piston 53 away from the first piston rod 54, and the pipeline between the two is filled with gas or liquid, so that when the second piston 21 moves, the first piston 53 can move immediately, thereby improving the sensitivity of the doctor's manual control of the top block 6.

[0037] Specifically, in this embodiment, the outer side of the column 3 is coaxially sleeved with a support tube 29, the support tube 29 is rotatably connected to the column 3, the support arm 5 is sleeved on the support tube 29, and the lower end of the support tube 29 is slidably and sealedly connected to the inner bottom of the circular shell 1. The support arm 5 is located between the two countersunk holes 55 and has a T-shaped flow channel 33. The two symmetrical ports of the T-shaped flow channel 33 are connected to one side of the bottom of the countersunk hole 55 in a one-to-one correspondence. An L-shaped flow channel 31 is opened inside the support tube 29, and the horizontal end of the L-shaped flow channel 31 is connected to the other end of the T-shaped flow channel 33. Figure 6 , Figure 6 This is an enlarged schematic diagram of point D of the reflector assembly of this embodiment. An annular groove 32 is vertically opened at the inner bottom of the circular shell 1. The annular groove 32 is located directly below the support tube 29. The annular groove 32 is connected to the vertical end of the L-shaped flow channel 31 (the wall thickness of the support tube 29 is greater than the groove pitch of the annular groove 32). The annular groove 32 is connected to the side of the cavity 23 away from the second piston rod 22 through a pipe, where the pipe can be buried in the handle 2 and the circular shell 1.

[0038] Among them, the above-mentioned T-shaped flow channel 33, L-shaped flow channel 31 and other structures can be integrally formed when the support arm 5 and the support tube 29 are manufactured, and the circular shell 1, handle 2, support arm 5 and support tube 29 and other structures can all be made of plastic materials.

[0039] As a further optimization solution, in this embodiment, a connecting cap 24 is provided on the end of the handle 2 away from the circular shell 1, and the connecting cap 24 is rotatably connected to the handle 2. A thread is provided on the second piston rod 22, and the second piston rod 22 passes through the connecting cap 24 and is threadedly connected to it.

[0040] In this embodiment, the connecting cap 24 is used to achieve that during the oral examination, the doctor manually screws the connecting cap 24 to drive the second piston rod 22 to move, thereby improving the accuracy of the movement control of the top block 6, and accurately adjusting the inclination angle of the circular lens 4 according to the internal conditions of the patient's mouth, thereby further improving the accuracy of the oral examination.

[0041] As a further optimization scheme, it is preferred in this embodiment that an annular limiting plate 11 is fixedly provided on the top of the circular shell 1, and is coaxial with the center line of the circular shell 1; an annular elastic support member 41 is vertically provided between the lower side of the annular limiting plate 11 and the circular lens 4, and is coaxial with the center line of the annular limiting plate 11; one end of the annular elastic support member 41 is fixedly connected to the circular lens 4, and the other end abuts against the lower side of the annular limiting plate 11.

[0042] In this embodiment, the circular lens 4 is supported by the cooperation of the annular limiting plate 11 and the annular elastic support member 41. When the support arm 5 rotates to adjust the tilt direction of the circular lens 4 and the top block 6 moves to adjust the tilt angle of the circular lens 4, the annular elastic support member 41 enables the circular lens 4 to recover quickly, thereby improving the sensitivity of the circular lens 4 in tilt direction and angle adjustment, and further improving the accuracy of oral examination. At the same time, the annular elastic support member 41 in this embodiment can also effectively reduce the shaking of the circular lens 4 when the tilt direction and angle are adjusted, thereby avoiding the shaking of the light reflected on the circular lens 4 or the mirror image display, and further improving the accuracy of oral examination.

[0043] Specifically, the annular limiting plate 11 in this embodiment has the same outer diameter as the circular shell 1 , and the inner diameter of the annular limiting plate 11 is smaller than the outer diameter of the circular lens 4 . The annular elastic support member 41 may be an elastic bellows.

[0044] Reference Figure 4 , Figure 4 This is a BB cross-sectional view of the reflector assembly of this embodiment. In this embodiment, a specific structural composition of a driving mechanism is given, which includes: a gear 58, a toothed synchronous belt 59, two connecting ropes 25 and a ring 26. The gear 58 is coaxially sleeved on the column 3 and is rotatably connected to it. The gear 58 is fixedly connected to the support arm 5. The toothed synchronous belt 59 is engaged with the side of the gear 58 away from the handle 2. One end of the two connecting ropes 25 is connected to the end of the toothed synchronous belt 59 respectively. The two rings 26 are sleeved on the handle 2 and are slidably connected to it. The other end of the connecting rope 25 is connected to the ring 26 in a one-to-one correspondence.

[0045] In this embodiment, when adjusting the tilt direction of the circular lens 4, the support arm 5 is actually rotated repeatedly clockwise and counterclockwise without the need for continuous rotation. A driving mechanism consisting of a gear 58, a toothed synchronous belt 59, two connecting ropes 25 and a ring 26 is used. The doctor manually drives the two rings 26 to move back and forth on the handle 2, and the toothed synchronous belt 59 can be used to drive the gear 58 to rotate back and forth repeatedly.

[0046] Specifically, the gear 58 in this embodiment is coaxially mounted on the support tube 29. The support tube 29 is located below the gear 58 and is also equipped with a support plate. The lower edge of the toothed synchronous belt 59 is located on the support plate. Figure 2 , Figure 2This is a front view of the reflector assembly of this embodiment. Wire grooves 27 are respectively provided on both sides of the handle 2. Limit blocks are fixed on both sides of the inner side of the ring 26. The limit blocks are embedded in the wire grooves 27 and are slidably connected to them. The connecting rope 25 is located in the wire grooves 27 and is connected to the limit blocks. Two guide tubes 30 are fixed horizontally inside the circular shell 1. The connecting rope 25 extends into the circular shell 1 through the wire grooves 27 and the guide tubes 30 and is connected to the two ends of the toothed synchronous belt 59. A guide groove is provided at the connection between the circular shell 1 and the handle 2, so that the connecting rope 25 can smoothly transition from the wire grooves 27 to the guide tubes 30.

[0047] As a further optimization solution, in this embodiment, an elastic damping member 28 is connected between the two rings 26 .

[0048] In this embodiment, an elastic damping member 28 is used to connect the two rings 26. When the handle is held with the base of the hand, the two rings 26 can be moved by the index finger and the middle finger. After the tilt direction of the circular lens 4 is adjusted for observation, the elastic damping member 28 restores the two rings 26 to their original positions.

[0049] The above disclosure is only a preferred specific embodiment of the present invention. However, the embodiments of the present invention are not limited thereto. Any changes that can be conceived by those skilled in the art should fall within the scope of protection of the present invention.

Claims

1. An oral observation mirror assembly, characterized in that: include: A circular shell and a handle arranged on the outside of the circular shell with an upward tilt, one end of the handle is connected to the side wall of the circular shell, and the circular shell is flat and has a through-hole at the top; A column, vertically fixed in the circular shell and coaxial with the center line thereof; A circular lens is coaxially arranged directly above the column, and the lower side of the circular lens is movably connected to the upper end of the column through a ball head mechanism; A support arm is horizontally arranged directly below the circular lens, one end of the support arm is sleeved on the column, and the support arm is rotatably connected to the column around the center line of the column; a top block vertically disposed on the upper side of the support arm, one end of the top block being connected to the support arm and the other end being in contact with the lower side of the circular lens, so as to tilt the circular lens and observe the tissue inside the oral cavity using the tilted circular lens; The driving mechanism is arranged on the circular shell, and the output end of the driving mechanism is connected to the support arm, and is used to drive the support arm to rotate so as to change the tilt direction of the circular lens.

2. The oral observation mirror assembly according to claim 1, characterized in that: The lower side of the circular lens is convex, and a slide groove is provided on the support arm along its length direction and located on the side of the support arm away from the column. The top block is arranged on the slide groove and is slidably connected to it. A linear displacement mechanism is provided on the support arm, and the output end of the linear displacement mechanism is connected to the top block for driving the top block to move so as to change the inclination angle of the circular lens.

3. The oral observation mirror assembly according to claim 2, characterized in that: The linear displacement mechanism includes: a first piston and a first piston rod. A countersunk hole is opened at one end of the support arm along its length direction. The first piston is arranged in the countersunk hole and is slidingly and sealedly connected to the countersunk hole. One end of the first piston rod is fixedly connected to the first piston, and the other end extends out of the countersunk hole along the center line direction of the countersunk hole and is connected to the top block. The bottom of the countersunk hole is connected to an external gas-liquid flushing and suction element through a pipeline to drive the first piston to move back and forth in the countersunk hole.

4. The oral observation mirror assembly according to claim 3, characterized in that: The gas-liquid flushing and suction mechanism includes: a second piston and a second piston rod. A cavity is opened inside the handle along its length direction. The second piston is arranged in the cavity and is slidingly and sealedly connected to it. One end of the second piston rod is connected to the side of the second piston away from the circular shell, and the other end extends out of the handle along the center line direction of the cavity. The second piston rod is slidingly and sealedly connected to the handle, and the bottom of the countersunk hole is connected to the side of the cavity away from the second piston rod through a pipe.

5. The oral observation mirror assembly according to claim 4, characterized in that: One end of the handle away from the circular shell is sleeved with a connecting cap, which is rotatably connected to the handle. The second piston rod is provided with a thread, which passes through the connecting cap and is threadedly connected to the connecting cap.

6. The oral observation mirror assembly according to claim 1, characterized in that: An annular limiting plate is fixedly provided on the top of the circular shell and is coaxial with the center line of the circular shell. An annular elastic support is vertically provided between the lower side of the annular limiting plate and the circular lens and is coaxial with the center line of the annular limiting plate. One end of the annular elastic support is fixedly connected to the circular lens, and the other end abuts against the lower side of the annular limiting plate.

7. The oral observation mirror assembly according to claim 1, characterized in that: The driving mechanism includes: a gear, a toothed synchronous belt, two connecting ropes and a ring. The gear is coaxially sleeved on the column and is rotatably connected to the column. The gear is fixedly connected to the support arm. The toothed synchronous belt is meshed with the side of the gear away from the handle. One end of the two connecting ropes is connected to the end of the toothed synchronous belt respectively. The two rings are sleeved on the handle and are slidably connected to it. The other end of the connecting rope is connected to the ring in a one-to-one correspondence.

8. The oral observation mirror assembly according to claim 7, characterized in that: An elastic damping component is connected between the two collars.

Images