Dental pulp observation device

Abstract

The invention relates to the technical field of dental pulp observation, in particular to a dental pulp observation device and a lifting assembly, the dental pulp observation device comprises a support, a sliding rod in sliding connection with the support and a containing cabin arranged at the end, away from the support, of the sliding rod, and the containing cabin comprises an operation channel; the first cavity and the second cavity are arranged in the support, the first cavity is communicated with the second cavity, the first piston rod is arranged in the first cavity in a sliding mode, the second piston rod is arranged in the second cavity in a sliding mode, and the second piston rod is connected with the sliding rod. The first elastic piece is arranged in the second cavity; the rotating piece is arranged on the outer wall of the support and is in meshed connection with the first piston rod; by controlling the flowing of liquid oil between the two chambers, the equipment can automatically move and also can be fixedly used; the use space of the equipment can be saved, and proper and comfortable positions can be found according to different patients.

Description

Technical Field

[0001] The present invention relates to the technical field of dental pulp observation, in particular to a dental pulp observation device. Background Art

[0002] Pulp observation devices play a crucial role in endodontic treatment, helping clinicians more clearly observe lesions within the pulp cavity, thereby improving diagnostic accuracy and treatment precision. However, existing endodontic observation devices still have some shortcomings in clinical application. These issues not only affect patient comfort but may also have a certain impact on treatment effectiveness.

[0003] For patients, endodontic treatment requires them to maintain an open mouth posture for a long time, which can cause soreness in the masseter muscles. At the same time, some studios do not have the space to place a large professional lying device, and handheld devices are not stable. Holding them for a long time will also make doctors tired. In addition, current endodontic observation devices mainly rely on doctors to observe through their eyes and lighting, which has obvious limitations. On the one hand, the information obtained is vague; on the other hand, this observation method cannot leave a video record, and patients cannot intuitively understand the extent of damage to their pulp. This has a certain impact on communication between doctors and patients and patients' treatment compliance. Summary of the Invention

[0004] Some simplifications or omissions may be made in this section and the abstract and title of the present application to avoid obscuring the purpose of this section, the abstract and the title of the invention, and such simplifications or omissions shall not be used to limit the scope of the invention.

[0005] In view of the above problems or problems existing in the prior art, the present invention is proposed.

[0006] To solve the above technical problems, the present invention provides the following technical solutions: a dental pulp observation device, comprising a lifting assembly, including a bracket, a slide rod slidably connected to the bracket, a receiving chamber provided at an end of the slide rod away from the bracket, the receiving chamber including an operating channel;

[0007] A first chamber and a second chamber are provided inside the bracket, and the first chamber and the second chamber are connected, a first piston rod is slidably provided inside the first chamber, a second piston rod is slidably provided inside the second chamber, and the second piston rod is connected to the sliding rod; and a first elastic member is provided inside the second chamber;

[0008] a rotating member disposed on an outer wall of the bracket, wherein the rotating member is engaged with the first piston rod;

[0009] The sliding assembly includes a first movable pipe rotatably connected to the accommodating chamber, a threaded rod arranged inside the first movable pipe, a search rod slidably connected to the threaded rod, and a miniature camera and a searchlight are provided on the outer wall of the search rod, and an expander is provided on the outer wall of the threaded rod.

[0010] As a preferred solution of the dental pulp observation device of the present invention, the first chamber and the second chamber are separated by an interactive hole.

[0011] As a preferred embodiment of the dental pulp observation device of the present invention, the cross-sectional area of the first chamber is larger than the cross-sectional area of the second chamber.

[0012] As a preferred embodiment of the dental pulp observation device of the present invention, the first piston rod is provided with a first movable channel running through it, and a tooth row is provided on the inner wall of the first movable channel; the rotating member includes a gear meshing with the tooth row.

[0013] As a preferred embodiment of the dental pulp observation device of the present invention, the outer wall of the gear is connected to a first rotating shaft; the outer wall array of the first rotating shaft is provided with a one-way block, and the one-way block includes a vertical surface and an arc surface;

[0014] A handle is rotatably provided on the outer wall of the first rotating shaft, and a second elastic member and a limiting rod slidably connected to the handle are provided inside the handle.

[0015] As a preferred solution of the dental pulp observation device of the present invention, the outer wall of the handle is provided with a limit block, and the outer wall of the bracket is provided with a limit groove for the limit block to slide.

[0016] As a preferred solution of the dental pulp observation device of the present invention, two rotating rods are provided.

[0017] As a preferred solution of the dental pulp observation device of the present invention, the second piston rod end face is provided with a first connecting rod, the other end of the first connecting rod is connected to the sliding rod; and the first elastic member is arranged between the second piston rod and the upper inner wall of the second chamber.

[0018] As a preferred embodiment of the dental pulp observation device of the present invention, a tray is provided at the lower end of the bracket, and a second movable channel is provided inside the tray; the first chamber and the second movable channel are connected by a first hose; and the second chamber and the second movable channel are connected by a second hose;

[0019] A piston is provided inside the second movable channel;

[0020] The lower end of the tray is connected to a moving wheel, the upper end of the moving wheel is provided with a second rotating shaft, and the second rotating shaft is connected to the inner wall of the second movable channel by a bearing;

[0021] The lower end of the piston is concave with a sliding groove, and the inner wall of the sliding groove is concave upward with a double-sided groove; the outer wall of the second rotating shaft is provided with a correction block that can slide along the inner wall of the double-sided groove.

[0022] As a preferred solution of the dental pulp observation device of the present invention, a resistance rod is provided inside the sliding rod for sliding.

[0023] Beneficial effects of the present invention: The present invention controls the flow of liquid and oil between the two chambers, so that the device can be moved automatically or used in a fixed manner; it can save space for the use of the device and can also find a suitable and comfortable position according to different patients; at the same time, the use of video to record the patient's dental pulp condition can not only understand the patient's condition more clearly, but also retain the information later to allow the patient to intuitively see the condition of the dental pulp. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be derived from these drawings without inventive effort. Among them:

[0025] Figure 1 This is an overall three-dimensional diagram of the dental pulp observation device.

[0026] Figure 2 Schematic diagram of the sliding component structure of the dental pulp observation device.

[0027] Figure 3 This is a schematic cross-sectional view of the lifting assembly of the dental pulp observation device.

[0028] Figure 4 for Figure 3 A magnified schematic diagram of the structure of area A in the middle.

[0029] Figure 5 Schematic diagram of the rotating parts.

[0030] Figure 6 Schematic diagram of the lifting assembly of the endodontic observation device.

[0031] Figure 7 It is a schematic diagram of the internal structure of the rotating part and the outer wall structure of the bracket.

[0032] Figure 8 This is a schematic cross-sectional view of the lifting assembly of the dental pulp observation device.

[0033] Figure 9 for Figure 8 Schematic diagram of the enlarged structure of the middle C region.

[0034] Figure 10 This is the distribution diagram of the limiting moving wheel. DETAILED DESCRIPTION

[0035] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0036] Example 1

[0037] Reference Figures 1 to 3 , which is a first embodiment of the present invention, provides a dental pulp observation device, which includes a lifting assembly 100, including a bracket 101, a sliding rod 102 slidably connected to the bracket 101, and a receiving chamber 103 provided at an end of the sliding rod 102 away from the bracket 101, the receiving chamber 103 including an operating channel 103a;

[0038] A first chamber 101a and a second chamber 101b are provided inside the bracket 101, and the first chamber 101a and the second chamber 101b are connected. A first piston rod 104 is slidably provided inside the first chamber 101a, and a second piston rod 105 is slidably provided inside the second chamber 101b, and the second piston rod 105 is connected to the sliding rod 102; a first elastic member 106 is provided inside the second chamber 101b;

[0039] A rotating member 107 is provided on the outer wall of the bracket 101 and is engaged with the first piston rod 104;

[0040] The sliding assembly 200 includes a first movable pipe 201 rotatably connected to the accommodating chamber 103, a threaded rod 202 arranged inside the first movable pipe 201, a search rod 203 slidably connected to the threaded rod 202, and a miniature camera and a searchlight are provided on the outer wall of the search rod 203, and an expander 204 is provided on the outer wall of the threaded rod 202.

[0041] The first chamber 101a penetrates the bracket 101 along the axial direction, and a second chamber 101b is added between the inner wall of the first chamber 101a and the outer wall of the bracket 101. Figure 3As shown, the first chamber 101a is cylindrical, the second chamber 101b is tubular, and the second chamber 101b does not completely penetrate the bracket 101; the first chamber 101a and the second chamber 101b are connected; liquid oil is poured between the first chamber 101a and the second chamber 101b; the first piston rod 105 is slidably installed inside the first chamber 101a, and when the first piston rod 104 slides, it can push the liquid oil inside the first chamber 101a into the second chamber 101b, and at the same time drive the second piston rod 105 inside the second chamber 101b to slide along the inner wall of the second chamber 101b. It should be noted here that the first piston rod 104 and the first chamber The inner wall of chamber 101a is sealed; the second piston rod 105 and the inner wall of the second chamber 101b are sealed; at the same time, a first elastic member 106 is arranged between the second piston rod 105 and the upper inner wall of the second chamber 101b, and the first elastic member 106 is a compression spring. In this way, when the liquid oil inside the first chamber 101a flows to the second chamber 101b, the first elastic member 106 will give a reaction force, so that the liquid oil flows slowly, slowing down the sliding speed of the second piston rod 105; at the same time, when the first piston rod 104 is not restricted, the compressed first elastic member 106 can push the liquid oil inside the second chamber 101b into the first chamber 101a. The advantage of this design is that when the first piston rod 105 is pushed, the second piston rod 105 can be pushed upward by the pressure of the liquid oil, and at the same time, the sliding rod 102 can be driven to move upward, and the accommodating chamber 103 can be driven to move upward; it can adapt to different heights according to people's different heights; at the same time, the rotating member 107 is engaged with the first piston rod 104. The advantage of this design is that the rotating member 107 can be rotated to drive the first piston rod 104 to slide, thereby controlling the sliding of the second piston rod 105. When the second piston rod 105 slides excessively, the rotating member 107 can be loosened, and the first elastic member 106 pushes the second piston rod 105 back. This solution allows the patient to control the rotation position of the rotating member 107 by himself.

[0042] like Figure 1As shown, the receiving chamber 103 is a spherical structure with a notch and is made of a transparent material. An operating channel 103a is also located on its outer surface, connecting to the interior. This channel can be used to fit common rubber operating gloves, such as those available on the market. This design offers the advantage of eliminating the need for doctors to face the patient during treatment, alleviating awkwardness. Furthermore, to address the issue of limited close observation, a first movable channel 201 is pivotally connected to the outer wall of the receiving chamber 103. A threaded rod 202 is screwed into the interior of the first movable channel 201. A dilator 204 is pivotally connected to the outer wall of the threaded rod 202, located near the interior of the receiving chamber 103. The dilator 204 consists of two support frames 204a, each consisting of two hinged rods and a flexible rod between them. This design offers the advantage of placing the support frames 204a against the inner sides of the lips at both ends. Then, by rotating the first movable channel 201, the threaded rod 202 begins to move into the receiving chamber 103. The distance of advancement can be customized based on the individual's mouth opening. This ensures that the patient's mouth is supported and prevents fatigue from prolonged periods of time. At the same time, a visiting rod 203 is slidably installed inside the threaded rod 202. A miniature camera and a searchlight are installed at one end of the visiting rod 203 close to the interior of the accommodating chamber 103. This can solve the problem of darkness inside the oral cavity. At the same time, the camera can be used to transmit internal images to a computer terminal for subsequent viewing and verification, so that patients can have a certain intuitive understanding of their tooth damage.

[0043] It should be noted that if Figure 2 As shown, there is an arc-shaped long rod 203a at one end of the exploration rod 203 close to the interior of the accommodating chamber 103, and its cameras and searchlights are distributed on the upper and lower surfaces of the long rod 203a. The position of the long rod 203a can be adjusted by telescopic means to observe the condition of the dental pulp of each tooth.

[0044] In summary, when the patient is being examined, he or she can sit or stand as needed, then rotate the rotating part 107 to adjust the position of the second piston rod 105, thereby adjusting the position of the accommodating chamber 103. The patient can then hug the bracket 101, then put his or her head close to the inside of the accommodating chamber 103, and then press the teeth against the expander 204. Then, the first movable channel 201 is rotated, and the position of the threaded rod 202 is adjusted through threaded transmission to ensure the opening and closing of the patient's mouth, ensuring that it is neither too large nor too small. The doctor then passes his or her hand through the operating channel 103a, swings the exploration rod 203, adjusts the position, and observes the condition of the dental pulp. The advantage of such a device is that it solves the space problem of existing equipment and the embarrassment of face-to-face diagnosis between doctors and patients. At the same time, it can also leave a record so that patients can intuitively understand the damage to their dental pulp.

[0045] Example 2

[0046] Reference Figures 1 to 5, which is the second embodiment of the present invention, is different from the first embodiment in that the first chamber 101a and the second chamber 101b are connected by an interactive hole 101c.

[0047] Among them, the first chamber 101a and the second chamber 101b are connected by an interactive hole 101c with a cylindrical structure. The advantage of this design is that it reduces the flow of liquid oil between the two chambers per unit time, so that the storage chamber 103 can rise or fall more slowly. At the same time, it cooperates with the first elastic member 106 to form a buffering effect, that is, after the inspection, it is only necessary to release the rotating member 107, and the first elastic member 106 will slowly reset the first piston rod 104. There will be no immediate release, which will cause ejection and accidental injury to the patient, thereby improving the safety of the equipment.

[0048] The cross-sectional area of the first chamber 101 a is larger than the cross-sectional area of the second chamber 101 b .

[0049] The cross-sectional area of the first chamber 101a is larger than that of the second chamber 101b. The advantage of this design is that the rising distance of the second piston rod 105 is longer than the descending distance of the first piston rod 104, which can save space when the equipment is not used.

[0050] Preferably, the first piston rod 104 is penetrated by a first movable channel 104 a , and an inner wall of the first movable channel 104 a is provided with a tooth row 104 b ; the rotating member 107 includes a gear 107 a meshingly connected with the tooth row 104 b .

[0051] The first movable channel 104a runs horizontally through the first piston rod 104, and a gear row 104b is fixedly installed on the inner wall of the first movable channel 104a. At the same time, the gear 107a in the rotating member 107 is meshed with the gear row 104b. In this way, rotating the rotating member 107 can drive the first piston rod 104 to move up and down; at the same time, if the rotating member 107 does not rotate, it also has a limiting effect on the first piston rod 104.

[0052] Furthermore, the outer wall of the gear 107a is connected to a first rotating shaft 107a-1; the outer wall of the first rotating shaft 107a-1 is provided with a one-way block 107b, and the one-way block 107b includes a vertical surface 107b-1 and an arc surface 107b-2;

[0053] A handle 107c is rotatably provided on the outer wall of the first rotating shaft 107a-1. A second elastic member 107d and a limiting rod 107e slidably connected to the handle 107c are provided inside the handle 107c.

[0054] The first rotating shaft 107a-1 on the outer wall of the gear 107a is rotatably connected to the bracket 101; at the same time, a handle 107c is sleeved on the outer wall of the first rotating shaft 107a-1, and a limiting rod 107e is slidably installed on the inner wall of the handle 107c, and the limiting rod 107e and the handle 107c are connected by a second elastic member 107d, and the second elastic member 107d is a compression spring; at the same time, there is a one-way block 107b on the outer wall of the first rotating shaft 107a-1, and it includes a vertical surface 107b-1 and an arc surface 107b-2; the advantage of this design is that when the handle 107c is rotated, the limiting rod 107e will contact the surface of the vertical surface 107b-1, and then drive the first rotating shaft 107a-1 to rotate; when the handle 107c is rotated in the opposite direction, the limiting rod 107e will slide along the surface of the arc surface 107b-2, thereby failing to drive the first rotating shaft 107a-1 to rotate. The advantage of this design is that when rotating the rotating member 107, you can hold the handle 107c, then rotate it half a circle, and then reverse the handle 107c, thereby continuing to drive the first rotating shaft 107a-1 to rotate, making rotation more convenient.

[0055] In order to further solve the problem of limiting the position of the first piston rod 104, two rotating members 107 are provided. At the same time, the gears 107a of the two rotating members 107 are meshed with the gear row 104b. The advantage of this design is that if one of the rotating members 107 cannot rotate, rotating the handle 107c of the other rotating member 107 can drive the first piston rod 104 to move downward without causing the first piston rod 104 to be pushed back by the first elastic member 106. For example, Figure 5 The left rotating member 107 shown rotates, while the right one does not rotate; that is, the limiting rod 107e inside the left handle 107c will contact the vertical surface 107b-1 to drive the first piston rod 104 downward, and the limiting rod 107e inside the right handle 107c will slide along the arc surface 107b-2. When the first elastic member 106 is pushed back, the limiting rod 107e inside the right handle 107c will contact the vertical surface 107b-1 again, and through the meshing relationship, prevent the first piston rod 104 from moving upward.

[0056] In order to further solve the limiting problem of the rotating member 107, preferably, a limiting block 107c-1 is provided on the outer wall of the handle 107c, and a limiting groove 101d for the limiting block 107c-1 to slide is provided on the outer wall of the bracket 101.

[0057] A stopper 107c-1 is fixedly mounted on the side of handle 107c near bracket 101. A stopper slot 101d is recessed inwardly at the corresponding position on bracket 101. When handle 107c is pushed toward bracket 101, stopper 107c-1 enters stopper slot 101d, preventing handle 107c from rotating. When handle 107c is pushed outward, stopper 107c-1 moves out of stopper slot 101d, allowing handle 107c to rotate.

[0058] In summary, when the slide bar 102 needs to be adjusted, it is only necessary to push the handle 107c of one of the two rotating members 107 outward so that the limit block 107c-1 slides out of the limit groove 101d; this solution slides out the left rotating member 107 as an example; Figure 5 , turn the handle 107c, the limit rod 107e inside the handle 107c will come into contact with the surface of the vertical surface 107b-1, and then drive the first rotating shaft 107a-1 on the left to rotate, thereby driving the first piston rod 104 to move downward. When the first piston rod 104 moves downward, it will drive the first rotating shaft 107a-1 on the right to rotate, and the limit rod 107c-1 inside the right handle 107c will slide along the corresponding arc surface 107b-2 on the outer surface of the one-way block 107b, thereby not restricting the first piston rod 104 from sliding downward; conversely, if the first piston rod 104 moves upward, the limit rod 107c-1 will come into contact with the surface of the vertical surface 107b-1.

[0059] Example 3

[0060] Reference Figures 1 to 10 , which is the third embodiment of the present invention, is different from the previous two embodiments in that: a first connecting rod 105a is provided on the end face of the second piston rod 105, and the other end of the first connecting rod 105a is connected to the sliding rod 102; and a first elastic member 106 is arranged between the second piston rod 105 and the upper inner wall of the second chamber 101b.

[0061] A plurality of first connecting rods 105a are fixedly mounted on the upper surface of the second piston rod 105. The first connecting rods 105a pass through the bracket 101 and connect to the slide rod 102. This design prevents the second piston rod 105 from rotating. At the same time, the space between the two first connecting rods 105a provides space for the rotation of the rotating member 107. Furthermore, the first elastic member 106 is disposed between the second piston rod 105 and the upper inner wall of the second chamber 101b. This allows the rotating member 107 to be positioned between the upper surface of the second chamber 101b and the upper surface of the bracket 101, thereby preventing contact with the first elastic member 106.

[0062] A tray 101e is provided at the lower end of the bracket 101, and a second movable channel 101e-1 is provided inside the tray 101e. The first chamber 101a and the second movable channel 101e-1 are connected by a first hose 301. The second chamber 101b and the second movable channel 101e-1 are connected by a second hose 302.

[0063] A piston 303 is provided inside the second movable channel 101e-1;

[0064] The lower end of the tray 101e is connected to a moving wheel 304, and the upper end of the moving wheel 304 is provided with a second rotating shaft 304a. The second rotating shaft 304a is connected to the inner wall of the second movable channel 101e-1 by a bearing 305;

[0065] The lower end of the piston 303 is concave with a slide groove 303a, and the inner wall of the slide groove 303a is concave upward with a double-sided groove 303a-1; the outer wall of the second rotating shaft 304a is provided with a correction block 304a-1 that can slide along the inner wall of the double-sided groove 303a-1.

[0066] Among them, it should be noted that this solution is that a one-way valve is installed inside the interactive hole 101c, and the liquid oil can only flow from the second chamber 101b to the first chamber 101a; a curved tray 101e is fixedly installed below the bracket 101, and the lower surface of the tray 101e is concave to form a second movable channel 101e-1, and a piston 303 is slidably installed inside, wherein one end of the first hose 301 is connected to the first chamber 101a, and the other end is connected from the top of the second movable channel 101e-1; at the same time, the second rotating shaft 304a above the moving wheel 304 is connected to the inner wall of the second movable channel 101e-1 through the bearing 305, so that the moving wheel 304 can rotate freely; this process is to limit the movement of the moving wheel 304, so further, a sliding groove 303a is concave on the lower surface of the piston 303, such as Figure 9 As shown, there is an upward concave V-shaped groove, and two V-shaped grooves are distributed on both sides and connected end to end to form a double-sided groove 303a-1; the advantage of this design is that when the liquid oil enters the second active channel 101e-1, the second active channel 101e-1 will push the piston 303 to move downward, and at the same time, the correction block 304a-1 on the outer surface of the second rotating shaft 304a will slide along the inner surface of the double-sided groove 303a-1 to reach the highest point; then the rotation is restricted, forming Figure 10 The distribution of the moving wheels 304 is shown; during the downward movement of the piston 303, the second hose 302 will gradually open.

[0067] In order to ensure that the moving wheel 304 is restricted in place, a resistance rod 306 is further provided inside the sliding rod 102 for sliding.

[0068] A resisting rod 307 is installed above the first piston rod 104. The resisting rod 307 is slidably connected to the slide bar 102. At the same time, the resisting rod 307 extends to the interior of the storage chamber 103. The advantage of this design is that when the observation device needs to be used, the device can be moved to the corresponding position, and then the storage chamber 103 is pressed and the resisting rod 307 is pushed downward. At this time, the first piston rod 104 will move downward, but the slide bar 102 will not move. In this way, the liquid oil in the first chamber 101a will push the piston 303 to slide downward first, and will not enter the second chamber 101b through the second hose 302. This process will first allow the piston 303 to limit the rotation of the moving wheel 304, and then rotate the rotating part 107 to adjust the height of the slide bar 102. Then, the gravity of the human head will be used to limit the slide bar 102 from sliding upward to find the appropriate height; then continue with the subsequent steps.

[0069] In summary, when the pulp observation is completed, you only need to push the two handles 107c outward, then rotate the limit of the rotating part 107 appropriately, the first elastic part 106 releases the potential energy, and then push the liquid oil in the second chamber 101b into the first chamber 101a. The observation device will be reset after use. Then the operator only needs to push the equipment back and forth a few times, and the correction block 304a-1 on the outer wall of the second rotating shaft 304a will slide along the surface of the bilateral groove 303a-1, and then push the piston 303 upward, and then the equipment can move normally.

[0070] The beneficial effects of this solution are:

[0071] 1. Save space, can be applied to various studios, and is easy to use;

[0072] 2. It can avoid direct eye contact between patients and doctors, which may cause embarrassment between them;

[0073] 3. It can be adjusted to different heights according to the needs of different patients, either sitting or standing;

[0074] 4. It is convenient to use and can ensure stability during use. At the same time, the device can be embraced, providing patients with a certain sense of security;

[0075] 5. Use video imaging to keep observation records so that patients can have an intuitive understanding of their pulp damage in the future.

[0076] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A dental pulp observation device, characterized in that: include, The lifting assembly (100) comprises a bracket (101), a sliding rod (102) slidably connected to the bracket (101), a receiving chamber (103) provided at an end of the sliding rod (102) away from the bracket (101), and the receiving chamber (103) comprises an operating channel (103a); A first chamber (101a) and a second chamber (101b) are provided inside the bracket (101), and the first chamber (101a) and the second chamber (101b) are communicated with each other; a first piston rod (104) is slidably provided inside the first chamber (101a), and a second piston rod (105) is slidably provided inside the second chamber (101b), and the second piston rod (105) is connected to the sliding rod (102); and a first elastic member (106) is provided inside the second chamber (101b); a rotating member (107) provided on the outer wall of the bracket (101), wherein the rotating member (107) is engaged with the first piston rod (104); The sliding assembly (200) comprises a first movable pipe (201) rotatably connected to the accommodating chamber (103), a threaded rod (202) disposed inside the first movable pipe (201), a viewing rod (203) slidably connected to the threaded rod (202), a micro camera and a searchlight disposed on the outer wall of the viewing rod (203), and an expander (204) disposed on the outer wall of the threaded rod (202).

2. The dental pulp observation device according to claim 1, wherein: The first chamber (101a) and the second chamber (101b) are separated by an interactive hole (101c).

3. The dental pulp observation device according to claim 2, wherein: The cross-sectional area of the first chamber (101a) is larger than the cross-sectional area of the second chamber (101b).

4. The dental pulp observation device according to claim 3, wherein: The first piston rod (104) is provided with a first movable channel (104a) running through it, and the inner wall of the first movable channel (104a) is provided with a tooth row (104b); the rotating member (107) includes a gear (107a) meshingly connected with the tooth row (104b).

5. The dental pulp observation device according to claim 4, wherein: The outer wall of the gear (107a) is connected to a first rotating shaft (107a-1); a one-way block (107b) is arranged in an array on the outer wall of the first rotating shaft (107a-1); the one-way block (107b) includes a vertical surface (107b-1) and a curved surface (107b-2); A handle (107c) is rotatably provided on the outer wall of the first rotating shaft (107a-1), and a second elastic member (107d) and a limiting rod (107e) slidably connected to the handle (107c) are provided inside the handle (107c).

6. The dental pulp observation device according to claim 5, wherein: The outer wall of the handle (107c) is provided with a limiting block (107c-1), and the outer wall of the bracket (101) is provided with a limiting groove (101d) for the limiting block (107c-1) to slide.

7. The dental pulp observation device according to any one of claims 1 to 6, characterized in that: There are two rotating rods (107).

8. The dental pulp observation device according to claim 7, wherein: The end surface of the second piston rod (105) is provided with a first connecting rod (105a), the other end of which is connected to the sliding rod (102); and the first elastic member (106) is arranged between the second piston rod (105) and the upper inner wall of the second chamber (101b).

9. The dental pulp observation device according to claim 8, wherein: A tray (101e) is provided at the lower end of the bracket (101), and a second movable channel (101e-1) is provided inside the tray (101e); the first chamber (101a) and the second movable channel (101e-1) are connected by a first hose (301); and the second chamber (101b) and the second movable channel (101e-1) are connected by a second hose (302); A piston (303) is provided inside the second movable channel (101e-1); The lower end of the tray (101e) is connected to a moving wheel (304), the upper end of the moving wheel (304) is provided with a second rotating shaft (304a), and the second rotating shaft (304a) is connected to the inner wall of the second movable channel (101e-1) by a bearing (305); The lower end of the piston (303) is concavely provided with a slide groove (303a), and the inner wall of the slide groove (303a) is concave upwardly with a double-sided groove (303a-1); the outer wall of the second rotating shaft (304a) is provided with a correction block (304a-1) that can slide along the inner wall of the double-sided groove (303a-1).

10. The dental pulp observation device according to claim 9, wherein: A resisting rod (306) is provided inside the sliding rod (102) for sliding movement.

Images