Oral cavity microscopic mouth mirror

Abstract

The utility model discloses an oral cavity microscopic mouth mirror which comprises a handle, a lens, a spraying assembly, a blowing assembly and a push rod, and the spraying assembly comprises a rotary nozzle arranged on the handle and an on-off part for controlling the nozzle to spray; the air blowing assembly comprises an air spraying ring, the lens is sleeved with the air spraying ring, and an air spraying hole set for blowing the lens is formed in the inner wall of the air spraying ring; the push rod is transversely and movably arranged in the handle. According to the microscopic mouth mirror, the lens is arranged to be in a rotary type and is matched with the water nozzle capable of rolling by a certain angle, the water nozzle can spray water to clean the near end and the far end of the lens, and therefore water cleaning is conducted on the whole lens; after water cleaning is completed, the middle and the edge of the lens are blown through the air jet hole sets of the air jet ring, water drops or water mist is removed, residual liquid on the lens is completely removed, the situation that when the lens is inclined, the water drops on the edge slide through the lens, and the surgical field is affected is prevented, and therefore the cleanliness of the whole lens is guaranteed.

Description

Technical Field

[0001] The present application relates to the technical field of oral examination mirrors, and in particular to an oral micro mirror. Background Art

[0002] The oral mirror is one of the commonly used instruments in dental treatment. The mirror of the oral microscope mouth mirror can magnify the treatment object several times. The reflected image presented by the mirror is clear and not distorted, which can achieve high-precision minimally invasive treatment.

[0003] The inside of the mouth is relatively moist due to the constant secretion of saliva. During dental treatment, cleaning fluid is sprayed to clean impurities such as tartar and debris. When the cleaning fluid collides with the teeth, it splashes. The splashing water, carrying impurities, easily sticks to the mirror surface of the oral microscope, causing the mirror surface to become blurred. The doctor cannot see the surgical position through the reflection of the mirror surface, which affects the progress of the operation. The current method for cleaning the mirror surface is to remove the oral microscope from the mouth and then wipe the mirror surface with a water-absorbing material. This requires frequent wiping of the mirror surface during the operation. The prior art discloses an oral microtherapy mouth mirror (application number 202223513567.8). The device uses a main hole and a secondary hole structure to clean the mirror surface of the mouth mirror. However, the main hole and the secondary hole of the device are located on one side of the mirror surface. When the main hole and the secondary hole are directed to the mirror surface for cleaning, the cleaning liquid and the gas will touch the mirror surface and reflect. This causes the impurities with larger particles at the far end of the mirror surface to be unable to be washed away by the cleaning liquid, and the secondary hole cannot blow air to the edge of the mirror surface, affecting the cleanliness of the mirror surface. Utility Model Content

[0004] The technical problem to be solved by the present application is to provide an oral microscope mouth mirror, which can spray water to clean the entire mirror surface and blow air to the edge of the mirror surface to remove water mist.

[0005] To solve the above technical problems, this application adopts the following technical solutions:

[0006] The oral microscope comprises a handle, the left end of which is movably connected to a lens, and further comprises:

[0007] The spray assembly includes a rotating nozzle on the handle and an on-off component that controls the nozzle spraying. The nozzle is located on the middle left side of the handle with its water hole facing the lens. The on-off component is located on the middle right side of the hand.

[0008] The blowing assembly includes an air jet ring, which is sleeved on the outside of the lens. The inner wall of the air jet ring is provided with an air jet hole group for blowing the lens. The inside of the air jet ring is provided with an air channel connected to the air jet hole group, and the air inlet end of the air channel is connected to the air pipe;

[0009] And a push rod is movably arranged in the handle, the left end of the push rod is movably connected with the bottom of the lens, and the right end of the push rod passes through the right side of the handle.

[0010] According to the expansion scheme of the utility model, the nozzle is spherical, a spherical cavity for placing the nozzle is arranged on the left side of the handle, and a water pipe is connected between the nozzle and the on-off component. The nozzle can roll in the spherical cavity, so that the cleaning liquid is sprayed to the distal end of the lens through the compression of the nozzle.

[0011] According to the expansion scheme of the utility model, the on-off component is fixed in the handle and comprises a sealed cavity, the sealed cavity is arranged in the handle, a pressing rod is arranged in the sealed cavity, the top of the pressing rod passes through the sealed cavity upwards, a pressing piece is arranged on the side wall of the pressing rod, a spring is arranged on the pressing rod and the bottom of the pressing piece, and a sealing valve core is arranged at the bottom of the pressing rod; a gap cavity for moving the valve core is arranged at the bottom of the sealed cavity. When the pressing rod is pressed downwards, the sealing valve core enters the gap cavity, and the cleaning liquid in the sealed cavity enters the water pipe and is sprayed from the nozzle.

[0012] In order to enable the air jet hole group to blow and remove water mist from the entire lens, according to the expansion scheme of the utility model, the air jet hole group comprises a first air jet hole and a second air jet hole, the first air jet hole is directed to the middle part of the lens, and the second air jet hole is arranged between the first air jet holes and is inclined to the edge of the lens.

[0013] In order to enable the lens to swing by a certain angle, in some embodiments, the bottom of the lens is provided with a connecting rod, the connecting rod is hingedly connected with the left end of the handle, and the left end of the push rod is hingedly connected with the bottom of the connecting rod.

[0014] In some embodiments, a limiting plate is arranged in the handle, a second spring is arranged at the right end of the limiting plate, a second pressing piece is arranged on the side wall of the push rod, and the second pressing piece is arranged on the right side of the second spring. After the push rod is pressed by the reaction force of the spring, the push rod is reset.

[0015] In some embodiments, a pushing rod is movably arranged in the handle, the left end of the push rod is movably connected with the bottom of the lens, and the right end of the push rod passes through the right side of the handle.

[0016] Compared with the prior art, the application at least has the following beneficial effects: the micro oral mirror sets the lens into a rotating type, cooperates with a water nozzle that can roll by a certain angle, sprays water on the proximal end of the lens after cleaning, and pushes the lens and the water nozzle to swing by an angle by a push rod, so that the distal end of the lens can be sprayed by water to clean the whole lens; after water cleaning, the middle part and the edge of the lens are blown by the air injection holes of the air injection ring to remove water droplets or water mist, so that the liquid remaining on the lens is completely removed, and when the lens is tilted, the water droplets on the edge of the lens do not slide through the lens to affect the surgical field, so that the cleanliness of the whole lens is ensured. BRIEF DESCRIPTION OF DRAWINGS

[0017] One or more embodiments of the application will now be described, by way of example only, with reference to the accompanying drawings:

[0018] Figure 1 is a perspective view of the oral micro oral mirror of the application;

[0019] Figure 2 is a front view of the oral micro oral mirror of the application;

[0020] Figure 3 is Figure 2 a front view in the state;

[0021] Figure 4 is a right view of the lens of the oral micro oral mirror of the application;

[0022] Figure 5 is Figure 3 a partial schematic view at A;

[0023] Figure 6 is Figure 3 a partial schematic view at B;

[0024] Figure 7 is Figure 3 a partial schematic view at C.

[0025] The reference signs in the drawings are: 1, handle; 1-1, clamping groove; 1-2, limiting plate; 1-3, flared opening; 2, lens; 3, nozzle; 3-1, water hole; 3-2, push rod; 4, button; 5, second button; 6, limiting assembly; 6-1, guide rail seat; 6-2, guide groove; 6-3, limiting block; 6-4, protrusion; 7, air injection ring; 7-1, first air injection hole; 7-2, second air injection hole; 8, scale; 9, connecting rod; 10, air pipe; 11, push rod; 11-1, second pressing piece; 11-2, push block; 12, water pipe; 13, second spring; 14, fixed cylinder; 15, sealing cavity; 15-1, adapter cavity; 15-2, accommodation cavity; 16, spring; 17, sealing valve core; 18, external connecting pipe; 19, pressing piece; 20, pressing rod. DETAILED DESCRIPTION

[0026] The application will be described in detail below with reference to the exemplary embodiments in the drawings. It should be understood that the application can be implemented in various forms and should not be construed as being limited to the embodiments set forth herein. The embodiments are provided herein to make the disclosure of the application more complete and to fully convey the concept of the application to those skilled in the art.

[0027] In the description of the application, it should be understood that the terms "center", "transverse", "longitudinal", "front", "back", "left", "right", "up", "down", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be construed as limiting the scope of protection of the application.

[0028] In the prior art, it is not possible to clean the entire mirror surface by spraying water and remove water mist defects by blowing air on the edge of the mirror. After careful analysis by the inventor, it is found that the main reason for the above problems is that the current water-washable mouth mirror has water holes arranged on one side of the lens. Due to the limited size of the water holes on the mouth mirror, the flow rate of the water may not be able to flush away large particle impurities when the water holes are discharged. In addition, the internal space of the oral cavity is limited, and it is difficult to rotate the lens significantly. This results in that the end of the lens far from the water hole cannot be flushed away by the gentle water flow. The blowing of the lens is usually directed at the middle part. However, water droplets may slide off the lens and form water marks when the lens is swinging, which can cause the reflected image to be blurred and deformed, and is not conducive to the doctor to view. Based on the above analysis, the inventor improves the structure of the mouth mirror.

[0029] As shown in Figure 1-6 The oral cavity microscopic mouth mirror of the present application comprises a hollow handle 1 made of medical plastic, the left side of the handle 1 is smaller in diameter than the right side of the handle 1, reducing the space occupied in the oral cavity, the left end of the handle 1 is bent upward, a clamping groove 1-1 is formed at the bent part, and a lens 2 is movably connected in the clamping groove 1-1, further comprising:

[0030] a spraying assembly comprising a rotating nozzle 3 arranged on the handle 1 and a on-off component for controlling the spraying of the nozzle 3, the nozzle 3 is arranged on the top surface of the left side of the handle 1, and the water hole 3-1 of the nozzle 3 faces the lens 2, and the on-off component is arranged on the right side of the handle;

[0031] The air blowing assembly comprises a jet ring 7, which is sleeved on the outside of the lens 2, the right end surface of the jet ring 7 protrudes from the right end surface of the lens 2, the inner wall of the jet ring 7 is provided with a jet hole group for blowing the lens 2, the inside of the jet ring 7 is provided with an annular air channel which is in communication with the jet hole group, the air channel is in communication with the side surface of the jet ring 7, and the communication position is an air inlet end; the air inlet end of the air channel is connected with an air pipe 10, the air pipe 10 extends to the right and passes through the handle 1 and then extends out from the right end of the handle 1 to be in communication with an existing air source.

[0032] The push rod 11 is transversely movably arranged in the handle 1, the left end of the push rod 11 is movably connected with the bottom of the lens 2, and the right end of the push rod 11 passes through the right side of the handle 1.

[0033] In order to facilitate the nozzle 3 to swing at an angle and realize spraying at different angles, the nozzle 3 is preferably in a spherical structure, a spherical cavity for placing the nozzle 3 is arranged on the left side of the middle of the handle 1, a water hole 3-1 of the nozzle 3 flows out of the spherical cavity, and the nozzle 3 is connected with the water pipe 12 and the on-off component. The nozzle 3 can roll in the spherical cavity at a certain angle, so that the cleaning liquid is compressed by the nozzle 3 and sprayed to the far end of the lens 2.

[0034] As shown in Figs. 1 to 3, Figure 3 and Figure 6 The on-off component is equivalent to a valve for manually opening and closing the nozzle 3, is fixed in the handle 1 and comprises a sealing cavity 15, the body of the sealing cavity 15 is a vertical cylinder, the bottom of the sealing cavity 15 is connected with a transversely cylindrical adapter cavity 15-1, the left and right ends of the adapter cavity 15-1 are respectively provided with through holes, the left end is in communication with the water pipe 12, and the right end is in communication with an external water pipe 18 which is connected with an external water source; the sealing cavity 15 is connected with a fixed cylinder 14, the top of the fixed cylinder 14 is fixedly connected with the inside of the handle 1, so that the sealing cavity 15 is fixed in the handle 1; a cylindrical pressing rod 20 is arranged in the sealing cavity 15, the top of the pressing rod 20 passes through the sealing cavity 15 upwards, the pressing rod 20 and the sealing cavity 15 are sealed by a sealing ring, the side wall of the pressing rod 20 is provided with a circular pressing piece 19, the bottom of the pressing piece 19 is sleeved with a spring 16 on the pressing rod 20, the bottom of the pressing rod 20 is provided with a sealing valve core 17, the sealing valve core 17 is made of elastic rubber material and has a certain deformation degree, and the sealing valve core 17 seals the middle part of the adapter cavity 15-1; the bottom of the sealing cavity 15 is provided with a displacement cavity 15-2 for the movement of the valve core.

[0035] The top surface of the pressing rod 20 is umbrella-shaped, and a button 4 is provided on the top of the pressing rod 20. The top surface of the pressing rod 20 and the bottom surface of the button 4 are glued and fixed. The umbrella-shaped surface can increase the contact area with the bottom surface of the button 4 without being too large than the diameter of the pressing rod 20. The top surface of the button 4 passes through the handle 1. Hold the handle 1, press the button 4 with your finger, press the pressing rod 20 downward, the spring 16 is compressed, and the pressing rod 20 drives the sealing valve core 17 to move to the bottom of the give way chamber 15-2. After the sealing valve core 17 moves downward, the left and right ends of the docking chamber 15-1 are connected, and the cleaning liquid in the external pipe 18 flows from the right end to the left end of the docking chamber 15-1, passes through the water pipe 12, and is sprayed from the water hole 3-1 of the nozzle 3 to the lens 2. Release the button 4, the spring 16 in the sealing chamber 15 rebounds and resets, and the lifting pressing piece 19 drives the pressing rod 20 to reset, and the sealing valve core 17 returns to the docking chamber 15-1 to re-seal the docking chamber 15-1.

[0036] The air jet group is used to blow the lens 2, which includes a plurality of first air jet holes 7-1 and second air jet holes 7-2 distributed equidistantly around the circumference. Figure 4 As shown, the first air jet hole 7-1 faces the middle of the lens 2. Figure 4 The arrow points to the center of the lens 2. The second jet hole 7-2 is opened between the first jet holes 7-1. The second jet hole 7-2 is inclined to the edge of the lens 2. Figure 4 The arrows are used to point to the edge of the lens 2. Since the microscope is required to reflect the image for surgery, the air jet group can be set to a normally open mode. This way, even if liquid or small impurities stick to the inlet surface during surgery, they can be blown clean in time.

[0037] Combine Figure 3 and Figure 4 As shown, a connecting rod 9 is provided at the bottom of the lens 2. The connecting rod 9 extends from the bottom of the air jet ring 7. The upper middle portion of the connecting rod 9 is hinged to the inner wall of the slot 1-1 at the left end of the handle 1. The left end of the push rod 11 is hinged to the bottom of the connecting rod 9. When the push rod 11 is pressed leftward, the left end of the push rod 11 pushes the connecting rod 9, causing the lens 2 to swing counterclockwise by a certain angle.

[0038] A circular stopper plate 1-2 is installed inside the handle 1. This stopper plate 1-2 is fixedly connected to the inner wall of the handle 1. The end surface of the stopper plate 1-2 is provided with holes for the push rod 11, the air tube 10, and the external tube 18 to pass through. A second spring 13 is installed at the right end of the stopper plate 1-2. A circular second pressing piece 11-1 is glued to the side wall of the push rod 11. This second pressing piece 11-1 is located inside the handle 1, to the right of the second spring 13. After pressing the push rod 11 to cause the lens 2 to swing to an appropriate angle, the second spring 13 is compressed. Release the push rod 11, and the second spring 13 returns to its original position, pushing the second pressing piece 11-1 and causing the push rod 11 to return to its original position.

[0039] Combine Figure 3 and Figure 5 As shown, a bell mouth 1-3 is provided at the bottom of handle 1, below where nozzle 3 is mounted. A strip-shaped toggle lever 3-2 is connected to the bottom surface of nozzle 3. Two strip-shaped toggle blocks 11-2 are connected to the sidewall of push rod 11, facing toward toggle lever 3-2. The two blocks are equidistantly spaced, with the space between them forming a bayonet into which toggle lever 3-2 is positioned. When push rod 11 moves, the bayonet drives toggle lever 3-2 to swing, causing nozzle 3 to roll and achieving a desired swing angle for water hole 3-1 in nozzle 3.

[0040] The side wall of the handle 1 is also provided with a ruler 8, which is located at the bottom of the handle 1. The ruler 8 can be used to measure the length when preparing or filling the root canal, without having to repeatedly take out the measuring table or diameter ruler, thereby improving the measurement efficiency.

[0041] The right end of the push rod 11 is also connected to the second button 5 .

[0042] In addition, considering that sometimes when adjusting the position of the mouth mirror, it is easy for the back of the lens 2 to contact the inside of the mouth, and when pressure is applied, it may cause the lens 2 to swing. Figure 1 、 2 As shown in Figures 7 and 8, a limit assembly 6 is provided at the right end of the handle 1. The limit assembly 6 includes an arc-shaped guide rail seat 6-1. A guide groove 6-2 with a convex cross-section is provided on the side of the guide rail seat 6-1. A limit block 6-3 is installed in the guide groove 6-2. The left end of the limit block 6-3 is a convex joint that matches the guide groove 6-2 and can move along the guide groove 6-2. The right end of the limit block 6-3 is higher than the right end of the guide rail seat 6-1. An upward protrusion 6-4 is provided on the top. A recess for placing the protrusion 6-4 is provided on the side wall of the second button 5. Figure 6 For explanation, at this time, the protrusion 6-4 of the limit block 6-3 is placed in the recess of the second button 5. The limited second button 5 cannot drive the push rod 11 to move, so that the lens 2 cannot swing. After pushing the limit block 6-3 clockwise to the bottom of the guide groove 6-2, the second button 5 is no longer restricted by the protrusion 6-4. Pressing the second button 5 can drive the push rod 11 to move.

[0043] When using the present oral microscope, first connect the trachea 10 to an external air source, connect the external pipe 18 to a water source, then place the lens 2 in the oral cavity to work. When cleaning the lens 2, press the button 4 to connect the on-off components, and the cleaning liquid flows from the external pipe 18 into the connecting cavity 15-1. Figure 2As shown, the water pipe 12 sprays water from the water hole 3-1 of the nozzle 3 (at this time, the angle is B1) to the middle and lower part of the lens 2 (at this time, the position is A1), when the upper part of the lens 2 needs to be cleaned (far from the nozzle 3), the second button 5 is pressed, the connecting rod 9 is driven by the push rod 11 to swing the lens 2 to the A2 position, when the push rod 11 moves, the bayonet will push the push rod 3-2 at the bottom of the nozzle 3, so that the water hole 3-1 of the nozzle 3 swings to the B2 angle, thereby spraying and cleaning the far end of the lens 2, after cleaning, the button 4 and the second button 5 are released, the on-off part is blocked, the lens 2 returns to the A1 position, and the nozzle 3 returns to the B1 position. The air jet group blows off the water droplets and water mist on the lens 2 and the edge, and finally the protrusion 6-4 of the limiting block 6-3 is clamped into the notch of the second button 5 to limit the swing of the lens 2, so that the oral microscope can be used continuously.

[0044] It should be understood that all the above embodiments are exemplary but not limiting, and various modifications or variations of the specific embodiments described above made by those skilled in the art under the concept of the present application shall be within the protection scope of the present application.

Claims

1. An oral microscope comprising a handle, a left end of the handle movably connected with a lens, characterized in that, Also include: Spray assembly, including a rotating nozzle on the handle and control the on-off component of the nozzle spray, nozzle set in the left side of the handle, its water hole towards the lens, on-off component set in the right side of the hand; Blowing assembly, including a jet ring, jet ring set in the outside of the lens, the inner wall of the jet ring is provided with a group of jet holes for blowing the lens, the inside of the jet ring is provided with a gas channel connected with the group of jet holes, the gas channel is connected with a gas pipe at the gas inlet end; And push rod, push rod is horizontally movably arranged in the handle, the left end of the push rod is movably connected with the bottom of the lens, and the right end of the push rod passes through the right side of the handle; the bottom surface of the nozzle is provided with a knob, the side wall of the push rod is provided with a bayonet, and the knob is arranged in the bayonet.

2. The microscope scope according to claim 1, wherein: The nozzle is spherical, the left side of the handle is provided with a spherical cavity for placing the nozzle, and the nozzle is connected with the on-off component through a water pipe.

3. The microscope scope according to claim 2, wherein: The on-off component is fixed in the handle and includes a sealed cavity, the sealed cavity is arranged in the handle, a pressing rod is arranged in the sealed cavity, the top of the pressing rod passes through the sealed cavity, the side wall of the pressing rod is provided with a pressing piece, a spring is arranged on the bottom of the pressing piece and the pressing rod, and a sealing valve core is arranged at the bottom of the pressing rod; the bottom of the sealed cavity is provided with a space for the movement of the valve core.

4. The microscope scope according to claim 3, wherein: The top of the pressing rod is provided with a button, and the top surface of the button passes through the handle.

5. The microscope scope according to claim 1, wherein: The group of jet holes includes a first jet hole and a second jet hole, the first jet hole is directed to the middle of the lens, and the second jet hole is arranged between the first jet holes and is inclined to the edge of the lens.

6. The microscope scope according to claim 1, wherein: The bottom of the lens is provided with a connecting rod, and the left end of the connecting rod is hingedly connected with the handle; the left end of the push rod is hingedly connected with the bottom of the connecting rod.

7. The microscope scope according to claim 1, wherein: The inside of the handle is provided with a limiting plate, and the right end of the limiting plate is provided with a second spring; the side wall of the push rod is provided with a second pressing piece, and the second pressing piece is arranged on the right side of the second spring.

8. The microscope scope according to claim 1, wherein: The side wall of the handle is also provided with a scale. The bottom surface of the nozzle is provided with a knob, the side wall of the push rod is provided with a bayonet, and the knob is arranged in the bayonet.

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