An opener for digital oral restoration

Abstract

The present invention provides an opener for digital oral restoration, belonging to the technical field of medical devices. It includes a connecting plate, the connecting plate is set in a semi-circular shape, and both ends of the opening side of the connecting plate are connected with bite blocks through a moving assembly, and two groups of the bite blocks are arranged relatively to each other. When the connecting plate is placed horizontally, the moving assembly can make the two groups of bite blocks move relatively at the end of the connecting plate; the moving assembly includes a shell, a first piston plate and a piston rod, the shape of the first piston plate is adapted to the internal cross-section of the shell, and the first piston plate is installed in the shell, one end of the piston rod is fixedly connected to the first piston plate, and the other end of the piston rod passes through the shell and is connected to the bite block; the present invention sets two groups of bite blocks, and in actual use, the two groups of bite blocks can be alternately supported in the patient's mouth, so that the support point of the patient's mouth can be changed, so that medical staff can comprehensively check the patient's mouth.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and more specifically to an opener for digital oral restoration. Background Art

[0002] With the continuous development of science and technology, digital technology has gradually penetrated into various fields of our lives, including the field of oral restoration. The application of digital technology not only improves the effect of oral restoration, but also reduces the difficulty of doctors' operation, bringing better treatment experience to patients.

[0003] The application of digital technology in oral rehabilitation is mainly reflected in the following aspects: Digital dental surgery is a method of using computer-assisted technology to perform dental implants, restorations, corrections and other operations. Through digital technology, doctors can perform three-dimensional reconstruction of the patient's mouth on the computer, accurately simulate the surgical process, and guide the operation. Digital dental surgery has the characteristics of high precision, less trauma, and fast recovery, providing patients with a safer, more comfortable and effective treatment method.

[0004] At present, in the process of digital oral diagnosis and treatment, the patient's mouth is often required to be open for a long time so that the doctor can better observe, inspect and operate. For some patients who have no autonomous control ability or are in a coma, an opener is usually needed to assist the patient to open his mouth. The existing opener places a bite block between the patient's upper teeth and lower teeth to achieve the purpose of opening the mouth. However, the bite block of the existing opener has a shielding effect on the patient's gums, which is not convenient for medical staff to observe and detect the mouth on one side of the bite block, thereby resulting in restrictions on diagnosis and treatment. For this reason, an opener for digital oral restoration is proposed. Summary of the invention

[0005] In view of the problem that the bite block in the prior art has a shielding effect on the patient's gums, making it inconvenient for medical personnel to observe and inspect the oral cavity on one side of the bite block, thereby limiting diagnosis and treatment, the purpose of the present invention is to provide an opener for digital oral restoration.

[0006] To solve the above problems, the present invention adopts the following technical solutions:

[0007] An oral digital restoration mouth opener, comprising a connecting plate, the connecting plate being arranged in a semi-circular shape, both ends of the opening side of the connecting plate being connected with bite blocks through a moving assembly, two groups of the bite blocks being arranged opposite to each other, and when the connecting plate is placed horizontally, the moving assembly can make the two groups of bite blocks move relative to each other at the end of the connecting plate;

[0008] The moving components include a shell, a first piston plate and a piston rod. The shape of the first piston plate is adapted to the internal cross-section of the shell, and the first piston plate is installed in the shell. One end of the piston rod is fixedly connected to the first piston plate, and the other end of the piston rod passes through the shell and is connected to the bite block. A connecting pipe is connected to one side of the outer surface of the shell, and a pneumatic component is arranged between the two groups of connecting pipes. The pneumatic component can supply or exhaust air to the shell.

[0009] Optionally, the pneumatic components all include an air chamber opened in the middle of the connecting plate, one end of the connecting pipe is through-connected to the air chamber, a second piston plate adapted thereto is provided inside the air chamber, the second piston plate forms a moving pair inside the air chamber, and a push rod is fixedly connected to the surface of the second piston plate, the end of the push rod away from the second piston plate passes through to the outside of the air chamber, a limiting groove is provided on the outer surface of the connecting plate, the limiting groove is located between the two groups of air chambers, and a limiting rod is inserted at the end of the push rod located outside the air chamber, the limiting groove and the limiting rod are perpendicular to the moving direction of the limiting rod; a first spring is sleeved on the surface of the piston rod, the first spring is located inside the shell, and one end of the first spring is fixedly connected to the inner surface of the shell, and the other end of the first spring is fixedly connected to the first piston plate.

[0010] Optionally, the bite block members all include a seat body, which is detachably mounted on the end of the piston rod, and two groups of bite parts are arranged inside the seat body, a telescopic bag is fixedly connected between the two groups of bite parts, the interior of the piston rod is hollow, and the telescopic bag is through-connected to the interior of the piston rod, one end of the piston rod located inside the shell is arranged in an open shape, and a baffle is provided at the open end of the piston rod, a connecting rod is fixedly connected to the surface of the baffle, a cylindrical groove is opened inside the piston rod, one end of the connecting rod is cooperated and installed in the cylindrical groove, a second spring is sleeved on the surface of the connecting rod, one end of the second spring is fixedly connected to the cylindrical groove, and the other end of the second spring is fixedly connected to one end of the connecting rod, a slider is slidably connected to the inner wall of the shell, and the lower end of the slider is fixedly connected to the upper end of the baffle, and the inner wall of the shell is also integrally formed with a limiting flange for limiting the slider and the first piston plate.

[0011] Optionally, a third spring is sleeved on the outer surface of the limit rod, one end of the third spring is fixedly connected to the end of the limit rod, and the other end of the third spring is fixedly connected to the push rod, and when the limit rod is flush with the limit slot, the vertical distance between the push rod and the limit slot is smaller than the length of the limit rod; when the third spring is in a natural state, there is an overlapping portion between the limit rod and the limit slot.

[0012] Optionally, the engaging portion includes two slides symmetrically slidably connected to one side of the seat body, two gears rotatably connected to one side of the two slides, two engaging parts rotatably connected to the other side of the two slides and fixed to the gears, two groups of guide grooves opened on one side of the two slides, two groups of guide rods respectively connected to one side of the two engaging parts and inserted in the two groups of guide grooves, and two tooth grooves symmetrically opened on one side of the slide to respectively accommodate two gears and mesh with the gears.

[0013] Optionally, two ball sleeves are fixedly connected to one side of the bite piece, and the two ball sleeves are respectively sleeved on the outside of the two guide rods and located in the two guide grooves, two movable grooves are arranged inside the bite piece, and one end of the two guide rods passes through the two movable grooves and extends into the inside of the bite piece, and an anti-skid stabilization component is also connected to the inside of the bite piece, and the anti-skid stabilization component includes two limit plates respectively located in the two movable grooves and fixed to the outside of the guide rod, two fourth springs respectively located in the movable grooves and sleeved on the outside of the guide rod, and two fourth springs respectively fixed to the Two connecting rods 1 at the extended ends of the two guide rods, two horizontal plates movably connected inside the bite piece and respectively fixed to the ends of the connecting rods 1, multiple inclined top flanges fixed to one side of the two horizontal plates, two groups of rubber blocks movably connected inside the bite piece, two connecting rods 2 movably connected inside the bite piece and respectively fixed to the two groups of rubber blocks, and multiple inclined grooves opened inside the two connecting rods 2 for accommodating the multiple inclined top flanges, the inner wall of the guide groove is provided with a step, and one side of the step is provided with an inclined surface, and one end of the guide rod located in the guide groove is provided with a chamfer

[0014] Optionally, a pipe groove is pre-opened inside the connecting plate, and the connecting pipe is embedded in the pipe groove.

[0015] Optionally, the shells are all installed on the ends of the connecting plates through an adjusting mechanism, and the adjusting mechanism can adjust the relative position of the shells and the connecting plates.

[0016] Optionally, the adjustment mechanism includes a sliding sleeve fixedly installed at the end of the connecting plate, the shell is installed in the sliding sleeve and forms a moving pair with it, the surface of the sliding sleeve is inserted with fixing bolts, the surface of the shell is provided with multiple groups of thread grooves, the thread grooves are arranged along the moving direction of the shell, and the fixing bolts are installed in the corresponding thread grooves.

[0017] Optionally, the bite block piece can be detachably installed on the end of the piston rod, the outer surface of the bite block piece is fixedly connected to a threaded rod, the end of the piston rod located outside the shell is fixedly connected to a threaded sleeve adapted to the threaded rod, the threaded rod can be screwed in or out of the threaded sleeve, the threaded rod is hollow inside, and the piston rod and the telescopic bag are both connected to the threaded rod.

[0018] Compared with the prior art, the technical solution provided by the present invention has at least the following beneficial effects:

[0019] In the above scheme, two groups of bite blocks are provided. In actual use, one group of the two groups of bite blocks enters the patient's oral cavity, and the other group of bite blocks is located outside the oral cavity. The group of bite blocks entering the patient's oral cavity supports the patient's teeth and opens the patient's oral cavity. Only one group of bite blocks is in the oral cavity, which can effectively reduce the occupied space. This design allows the dentist to have more space on the other side of the patient's oral cavity where there is no bite block when performing treatment, and can also reduce interference, facilitate observation and treatment. The patient may feel more comfortable and can perform dental operations more easily during use. The two groups of bite blocks can be alternately placed on both sides of the patient's oral cavity in turn, so that the patient's oral support point can be changed, so that medical staff can comprehensively examine the patient's oral cavity.

[0020] By setting up the mobile component and the pneumatic component for use together, during the patient's oral restoration process, the two groups of bite blocks can be simply and quickly switched, thereby changing the supporting points of the patient's oral cavity, so as to facilitate comprehensive inspection and restoration of the patient's oral cavity;

[0021] By setting an adjustment mechanism, the positions of the moving assembly and the bite block are adjusted by adjusting the relative positions of the housing and the sliding sleeve, and the housing is fixed by fixing bolts, so as to adapt to different patients and improve the applicability of the mouth opener;

[0022] By designing the bite block as a disposable item, cross infection can be avoided; the moving component, pneumatic component and connecting plate can all be made of stainless steel and are reusable parts. The bite block and piston rod are detachable. After use, the bite block can be rotated to unscrew the threaded rod on the bite block from the inside of the threaded sleeve, thereby disassembling the bite block. For reusable parts such as the moving component, pneumatic component and connecting plate, they need to be disinfected according to medical standards after use to ensure safety of subsequent use. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The accompanying drawings, which are incorporated herein and constitute a part of the specification, illustrate embodiments of the invention and, together with the description, further serve to explain the principles of the invention and to enable those skilled in the relevant art to make and use the invention.

[0024] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0025] Figure 2 For the present invention Figure 1 A schematic cross-sectional structure diagram of ;

[0026] Figure 3 For the present invention Figure 2 Schematic diagram of the structure of the mobile component;

[0027] Figure 4 For the present invention Figure 2 Schematic diagram of the structure of the pneumatic power component;

[0028] Figure 5 For the present invention Figure 3 The enlarged view of point A in the middle;

[0029] Figure 6 For the present invention Figure 4 The enlarged view of point B in the middle;

[0030] Figure 7 For the present invention Figure 1 Schematic diagram of the structure of the part;

[0031] Figure 8 It is a schematic diagram of the structure of the bite block and the piston rod when being disassembled according to the present invention;

[0032] Fig. 9 It is a schematic diagram of the structure of the tooth groove and the guide groove of the present invention;

[0033] Fig.10 It is a structural schematic diagram of the occlusal portion of the present invention;

[0034] Fig.11 It is a structural schematic diagram of the guide rod and the ball sleeve of the present invention;

[0035] Fig.12 is a cross-sectional view of the bite element of the present invention;

[0036] Fig.13 For the present invention Fig.12 Enlarged view of point C in the middle;

[0037] Fig.14 It is a schematic diagram of the structure of the anti-skid stabilization component of the present invention;

[0038] Fig.15 It is a schematic diagram of the structure of the step and the inclined surface of the present invention;

[0039] Fig.16 It is a schematic diagram of the structure in which a single-sided bite block of the present invention is located between the upper and lower groups of teeth.

[0040] [Reference Signs]

[0041] 1. Connecting plate; 2. Moving assembly; 21. Housing; 22. First piston plate; 23. Piston rod; 24. First spring; 26. Connecting pipe; 27. Limiting flange;

[0042] 3. Bite block; 31. seat body; 32. bite part; 321. slide seat; 322. bite piece; 323. gear; 324. guide groove; 325. guide rod; 326. step; 327. inclined plane; 33. telescopic bag; 34. baffle; 35. connecting rod; 36. cylindrical groove; 37. second spring; 38. slider;

[0043] 4. Pneumatic component; 41. Air chamber; 42. Second piston plate; 43. Push rod; 44. Limiting groove; 45. Limiting rod; 46. Third spring; 5. Adjusting mechanism; 51. Sliding sleeve; 52. Fixing bolt; 53. Threaded groove; 6. Threaded rod; 7. Threaded sleeve; 8. Tooth groove;

[0044] 9. Anti-skid stabilization component; 91. Chamfer; 92. Ball sleeve; 93. Rubber block; 94. Movable groove; 95. Limit plate; 96. Fourth spring; 97. Connecting rod one; 98. Cross plate; 981. Inclined top flange; 99. Connecting rod two; 991. Inclined groove.

[0045] As shown in the figure, in order to clearly implement the structure of the embodiment of the present invention, specific structures and devices are marked in the figure, but this is only for illustrative purposes and is not intended to limit the present invention to the specific structure, device and environment. According to specific needs, ordinary technicians in this field can adjust or modify these devices and environments. DETAILED DESCRIPTION

[0046] The following is a detailed description of an oral digital restoration mouthpiece provided by the present invention in conjunction with the accompanying drawings and specific embodiments. At the same time, it is explained here that in order to make the embodiments more detailed, the following embodiments are the best and preferred embodiments, and those skilled in the art may also adopt other alternative methods to implement some known technologies; and the accompanying drawings are only for a more specific description of the embodiments, and are not intended to specifically limit the present invention.

[0047] It should be noted that the references to "one embodiment", "embodiment", "exemplary embodiments", "some embodiments" and the like in the specification indicate that the embodiments described may include specific features, structures or characteristics, but not every embodiment may include the specific features, structures or characteristics. In addition, when a specific feature, structure or characteristic is described in conjunction with an embodiment, it should be within the knowledge of a person skilled in the art to implement such feature, structure or characteristic in conjunction with other embodiments (whether or not explicitly described).

[0048] In general, a term can be understood, at least in part, from its use in context. For example, depending, at least in part, on the context, the term "one or more" as used herein can be used to describe any feature, structure, or characteristic in the singular sense, or can be used to describe a combination of features, structures, or characteristics in the plural sense. Additionally, the term "based on" can be understood as not necessarily intended to convey an exclusive set of factors, but can instead, depending, at least in part, on the context, allow for the presence of other factors that are not necessarily explicitly described.

[0049] It will be understood that the meanings of “on,” “over,” and “above” in the present invention should be interpreted in the broadest manner, so that “on” not only means “directly on” something, but also includes the meaning of being “on” something with intervening features or layers therebetween, and “on” or “over” not only means “on” or “above” something, but also includes the meaning of being “on” or “above” something with no intervening features or layers therebetween.

[0050] Additionally, spatially relative terms such as "under," "beneath," "lower," "above," "upper," and the like may be used herein for descriptive convenience to describe the relationship of one element or feature to another element or features, as shown in the accompanying drawings. Spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the accompanying drawings. The device may be oriented in other ways, and the spatially relative descriptors used herein may be similarly interpreted accordingly.

[0051] like Figures 1 to 4 as well as Figure 6 As shown, an embodiment of the present invention provides an opener for digital oral restoration, including a connecting plate 1, which is arranged in a semi-ring shape, and both ends of the opening side of the connecting plate 1 are connected to bite blocks 3 through a moving component 2, and two groups of the bite blocks 3 are arranged opposite to each other. When the connecting plate 1 is placed horizontally, the moving component 2 can enable the two groups of bite blocks 3 to move relative to each other at the end of the connecting plate 1.

[0052] The moving components 2 include a shell 21, a first piston plate 22 and a piston rod 23. The shape of the first piston plate 22 is adapted to the internal cross-section of the shell 21, and the first piston plate 22 is cooperatively installed inside the shell 21. One end of the piston rod 23 is fixedly connected to the first piston plate 22, and the other end of the piston rod 23 passes through the shell 21 and is connected to the bite block 3. A connecting pipe 26 is through-connected to one side of the outer surface of the shell 21, and a pneumatic component 4 is arranged between the two groups of the connecting pipes 26. The pneumatic component 4 can supply or exhaust air to the shell 21.

[0053] A pipe groove is pre-opened inside the connecting plate 1, and the connecting pipe 26 is embedded in the pipe groove.

[0054] The pneumatic components 4 all include an air chamber 41 opened in the middle of the connecting plate 1, one end of the connecting pipe 26 is connected to the air chamber 41, and a second piston plate 42 adapted thereto is arranged inside the air chamber 41, the second piston plate 42 forms a moving pair inside the air chamber 41, and a push rod 43 is fixedly connected to the surface of the second piston plate 42, and one end of the push rod 43 away from the second piston plate 42 penetrates to the outside of the air chamber 41, a limiting groove 44 is provided on the outer surface of the connecting plate 1, the limiting groove 44 is located between the two groups of air chambers 41, and a limiting rod 45 is inserted into the end of the push rod 43 located outside the air chamber 41, and the limiting groove 44 and the limiting rod 45 are perpendicular to the moving direction of the limiting rod 45.

[0055] like Figures 2 to 3 as well as Figure 5 As shown, the bite block 3 includes a seat body 31, which is detachably mounted on the end of the piston rod 23, and two groups of bite parts 32 are arranged inside the seat body 31, and a telescopic bag 33 is fixedly connected between the two groups of bite parts 32. The interior of the piston rod 23 is hollow, and the telescopic bag 33 is connected to the interior of the piston rod 23 through the end of the piston rod 23 located inside the shell 21. The open end of the piston rod 23 is provided with a baffle 34, and a connecting rod 35 is fixedly connected to the surface of the baffle 34. A cylindrical groove is opened inside the piston rod 23 36, one end of the connecting rod 35 is fitted and installed inside the cylindrical groove 36, a second spring 37 is sleeved on the surface of the connecting rod 35, one end of the second spring 37 is fixedly connected to the cylindrical groove 36, the other end of the second spring 37 is fixedly connected to one end of the connecting rod 35, one side of the baffle 34 is in contact with the open end of the piston rod 23, a slider 38 is slidably connected to the inner wall of the shell 21, and the lower end of the slider 38 is fixedly connected to the upper end of the baffle 34, and the inner wall of the shell 21 is also integrally formed with a limiting flange 27 for limiting the slider 38 and the first piston plate 22.

[0056] By setting the above scheme, the medical staff selects an opener of appropriate size and disinfects the opener, then reminds the patient to open his mouth, puts one of the two groups of bite blocks 3 into the patient's mouth, and places the group of bite blocks 3 between the patient's upper teeth and lower teeth, and places the other group of bite blocks 3 outside the patient's mouth, as shown in FIG. Fig.16As shown, only one group of bite block pieces 3 enters the patient's oral cavity. The medical staff can pre-press one group of push rods 43 in the mouth opener, and move the limiting rod 45 on the push rod 43 into the limiting groove 44 to fix the push rod 43. The push rod 43 thereby drives the corresponding second piston plate 42 to move in the air chamber 41. The second piston plate 42 pushes the gas in the air chamber 41. The gas in the air chamber 41 can thereby enter the corresponding shell 21 through the connecting pipe 26. The gas inside the shell 21 increases, thereby pushing the first piston plate 22 inside the shell 21 to move. The first piston plate 22 thereby drives the piston rod 23 and the bite block piece 3 at the end of the piston rod 23 to move, so that the bite block piece 3 moves toward the inside of the connecting plate 1. At this time, the bite block piece 3 can be translated a short distance between the patient's upper and lower teeth, so that most of the area of ​​the bite block piece 3 can be located between the upper and lower teeth, thereby increasing the contact area between the bite block piece 3 and the upper and lower teeth. When the first piston plate 22 and the piston rod 23 move toward the direction of the bite block piece 3, the first piston The plate 22 can also drive the baffle plate 34 and the slider 38 to move inside the shell 21. When the slider 38 moves and one side contacts the limit flange 27, the slider 38 cannot move toward the bite block 3 inside the shell 21 due to the action of the limit flange 27. At this time, the first piston plate 22 can still continue to move. The movement of the first piston plate 22 will squeeze the second spring 37. At this time, the open end of the piston rod 23 is separated from the baffle plate 34, and the gas can enter the piston rod 23 through the opening of the piston rod 23. The gas enters the telescopic bag 33 through the piston rod 23. The telescopic bag 33 pushes the two groups of biting parts 32 to the upper and lower sides, thereby stretching the patient's teeth. In this way, only one group of bite blocks 3 is in the oral cavity, which can effectively reduce the occupied space. This design allows dentists to have more space on the other side of the patient's mouth where there is no bite block 3 for convenient operation during treatment. It can also reduce interference, facilitate observation and treatment, and patients may feel more comfortable and can perform dental operations more easily during use.

[0057] For some patients who are unconscious or have lost their ability to control themselves, medical staff can first use tweezers or other tools to pry open the patient's mouth, and then place the bite block 3 located on the inner side of the connecting plate 1 between the patient's upper and lower teeth, and place the bite block 3 on the other side of the connecting plate 1 outside the patient's other side of the mouth; at this time, the patient's mouth remains open under the support of the bite block 3, and medical staff can inspect and repair the inside of the patient's mouth.

[0058] When it is necessary to check the side of the mouth that is stretched open by the bite block 3, the medical staff first resets the group of bite blocks 3 located in the mouth and takes them out from one side of the mouth, then puts another group of bite blocks 3 into the other side of the patient's mouth, and presses another group of push rods 43. Similarly, this group of push rods 43 drives the corresponding second piston plate 42 to move in the air chamber 41, and the second piston plate 42 pushes the gas in the air chamber 41, so that the gas in the air chamber 41 can enter the corresponding shell 21 through the connecting pipe 26. The gas inside the shell 21 increases, thereby pushing the first piston plate 22 inside the shell 21 to move, and the first piston plate 22 drives the piston rod 23 and the bite block 3 at the end of the piston rod 23 to move, so that the group of bite blocks 3 moves between the patient's upper and lower teeth, and then, Push the limiting rod 45 on the group of push rods 43 to move the group of limiting rods 45 into the limiting groove 44, thereby fixing the positions of the group of push rods 43, the second piston plate 42, the first piston plate 22 and the bite block 3. In addition, during the process of the group of limiting rods 45 moving into the limiting groove 44, the other group of limiting rods 45 will be pushed to move out from the limiting groove 44. Therefore, under the influence of air pressure, the gas in the other group of shells 21 and the air chamber 41 moves back to the inside of the air chamber 41 through the connecting pipe 26, and the first piston plate 22 inside the shell 21 moves back with the piston rod 23, thereby driving the group of bite blocks 3 to move out of the oral cavity. The bite block 3 on this side no longer blocks the oral cavity, and the medical staff can check and repair the oral cavity on this side. Therefore, the present invention sets a moving component 2 for use with a pneumatic component 4. During the patient's oral restoration process, the two groups of bite blocks 3 can be simply and quickly switched, thereby changing the support points of the patient's oral cavity, so as to facilitate a comprehensive inspection, restoration, etc. of the patient's oral cavity.

[0059] like Figure 3 As shown, the surface of the piston rod 23 is sleeved with a first spring 24 , the first spring 24 is located inside the housing 21 , and one end of the first spring 24 is fixedly connected to the inner surface of the housing 21 , and the other end of the first spring 24 is fixedly connected to the first piston plate 22 .

[0060] Since the patient has a certain bite force on the bite block 3, it is difficult to move the bite block 3 out of the patient's mouth only by air pressure. Therefore, this embodiment can assist the bite block 3 to be moved out of the patient's mouth by sleeved with a first spring 24 on the outer surface of the piston rod 23. Specifically, in the process of using the push rod 43 to supply air to the inside of the shell 21 to drive the first piston plate 22, the piston rod 23 and the bite block 3 to move, the first spring 24 located on the surface of the piston rod 23 will be compressed; subsequently, after the limiting rod 45 on the push rod 43 is moved out of the limiting groove 44, the compressed first spring 24 is reset, thereby pushing the piston rod 23 and the bite block 3 to move, providing power for the bite block 3, and promoting the bite block 3 to be moved out of the patient's mouth.

[0061] like Figure 6 As shown, the outer surface of the limit rod 45 is sleeved with a third spring 46, one end of the third spring 46 is fixedly connected to the end of the limit rod 45, and the other end of the third spring 46 is fixedly connected to the push rod 43. When the third spring 46 is in a natural state, there is an overlapping portion between the limit rod 45 and the limit slot 44.

[0062] In this embodiment, by providing a third spring 46 on the surface of the limiting rod 45, the limiting rod 45 can be stably inserted into the limiting groove 44 to ensure that the limiting rod 45 fixes the push rod 43, the second piston plate 42, the first piston plate 22, etc.

[0063] When the limiting rod 45 is flush with the limiting groove 44 , the vertical distance between the push rod 43 and the limiting groove 44 is smaller than the length of the limiting rod 45 .

[0064] In this embodiment, since the length of the limiting rod 45 is greater than the vertical distance between the push rod 43 and the limiting groove 44, when a group of limiting rods 45 moves into the limiting groove 44, the limiting rods 45 previously located in the limiting groove 44 can be pushed out of the limiting groove 44.

[0065] like Figure 9-11 As shown, the engaging portion 32 includes two slides symmetrically slidably connected to one side of the seat body 31, two gears 323 rotatably connected to one side of the two slides 321, two engaging members 322 rotatably connected to the other side of the two slides 321 and fixed to the gears 323, two groups of guide grooves 324 opened on one side of the two slides 321, and two groups of guide rods 325 respectively connected to one side of the two engaging members 322 and inserted in the two groups of guide grooves 324. One side of the slide 321 is symmetrically provided with two tooth grooves 8 that respectively accommodate the two gears 323 and mesh with the gears 323.

[0066] By setting the above scheme, when the telescopic bag 33 pushes the upper and lower slides 321 to move in opposite directions, the two gears 323 on one side of the two slides 321 can move in the tooth groove 8, and the gears 323 can also rotate on one side of the slide 321 while following the movement of the slide 321. The rotation of the gears 323 drives the bite piece 322 on the other side of the slide 321 to rotate, so that the two bite pieces 322 are changed from being parallel to each other to having an acute angle between them, and the guide rod 325 on one side of the bite piece 322 is in the guide groove 324 and moves along the guide groove 324, so that the bite piece 322 Component 322 can be adjusted according to the opening angle of the teeth, because when the mouth is opened, the angle between the upper and lower groups of teeth will also change. Therefore, this angle-adjustable design can better adapt to the oral anatomical structure of different patients. The bite component 322 can better cooperate with the patient's occlusal surface and tooth shape during the expansion process, providing a more comfortable experience and reducing the tension caused by the expansion. The bite component 322 can apply force at different angles, so that it is more evenly distributed on the teeth and gums, reducing local pressure on individual teeth and reducing discomfort.

[0067] like Figure 11-Figure 14 As shown, one side of the bite piece 322 is fixedly connected to two ball sleeves 92, and the two ball sleeves 92 are respectively sleeved on the outside of the two guide rods 325 and located in the two guide grooves 324, the bite piece 322 is provided with two movable grooves 94, and one end of the two guide rods 325 passes through the two movable grooves 94 and extends into the bite piece 322, and the bite piece 322 is also connected to an anti-skid stabilization component 9, and the anti-skid stabilization component 9 includes two limit plates 95 respectively located in the two movable grooves 94 and fixed to the outside of the guide rod 325, two fourth springs 96 respectively located in the movable grooves 94 and sleeved on the outside of the guide rod 325, and two fourth springs 96 respectively fixed to the two guide rods 325. Two connecting rods 97 at the extension end, two cross plates 98 movably connected inside the bite piece 322 and respectively fixed to one end of the connecting rod 97, multiple inclined top flanges 981 fixed to one side of the two cross plates 98, two groups of rubber blocks 93 movably connected inside the bite piece 322, two connecting rods 99 movably connected inside the bite piece 322 and respectively fixed to the two groups of rubber blocks 93, and multiple inclined grooves 991 opened inside the two connecting rods 99 for accommodating the multiple inclined top flanges 981, the inner wall of the guide groove 324 is provided with a step 326, and a slope 327 is opened on one side of the step 326, and one end of the guide rod 325 located in the guide groove 324 is provided with a chamfer 91.

[0068] By setting the above scheme, when the bite member 322 rotates and drives the guide rod 325 to move in the guide groove 324, the chamfer 91 of the guide rod 325 can go from the inclined surface 327 to the step 326, and the step 326 pushes the guide rod 325 to move in the direction of the bite member 322. When the guide rod 325 moves into the bite member 322, the limit plate 95 squeezes the fourth spring 96, and the guide rod 325 drives the cross plate 98 to move through the connecting rod 1 97. When the cross plate 98 moves, it drives the inclined top flange 981 to move. The top inclined surface of the inclined top flange 981 cooperates with the inner inclined surface of the inclined groove 991, so that when the inclined top flange 981 moves, it pushes the connecting rod 2 99 to move in the direction of the rubber block 93. When the bite piece 322 moves, the connecting rod 2 99 pushes the rubber block 93 to move and makes one end of the rubber block 93 extend out of the bite piece 322. When one side of the bite piece 322 contacts the teeth, one end of the rubber block 93 extends out of the bite piece 322 and can enter the tooth socket or get stuck in the tooth gap between two adjacent teeth, effectively increasing the contact area with the teeth and providing better gripping force, thereby reducing the sliding or deviation of the bite piece 322 during use, enhancing the stability of the entire support structure, and ensuring that it is not easy to fall off during treatment. The rubber block 93 can form a "locking" mechanism between the teeth to prevent the bite piece 322 from accidentally falling off or losing its position, thereby improving overall safety.

[0069] like Figures 2 to 3 as well as Figure 7 As shown, the housing 21 is installed on the end of the connecting plate 1 through an adjusting mechanism 5 , and the adjusting mechanism 5 can adjust the relative position of the housing 21 and the connecting plate 1 .

[0070] The adjusting mechanisms 5 include a sleeve 51 fixedly mounted on the end of the connecting plate 1. The housing 21 is mounted inside the sleeve 51 and forms a moving pair therewith. Fixing bolts 52 are inserted on the surface of the sleeve 51. The surface of the housing 21 is provided with a plurality of sets of thread grooves 53. The thread grooves 53 are arranged along the moving direction of the housing 21. The fixing bolts 52 are mounted inside the corresponding thread grooves 53.

[0071] In the present embodiment, due to individual differences, the sizes of the oral cavity of patients are different. By setting an adjustment mechanism 5, the position of the movable component 2 and the bite block 3 can be adjusted to adapt to different patients. Specifically, when the position of the movable component 2 and the bite block 3 needs to be adjusted, first, the threaded groove 53 corresponding to the fixing bolt 52 is unscrewed. Since the sleeve 51 and the shell 21 are slidably matched, the shell 21 can be moved to adjust the relative position of the shell 21 and the sleeve 51. After the adjustment is completed, the fixing bolt 52 is screwed into the corresponding threaded groove 53 to fix the shell 21. In this way, the relative position of the movable component 2 and the bite block 3 can be adjusted to adapt to different patients and improve the applicability of the mouth opener.

[0072] like Figure 8As shown, the bite block 3 can be detachably installed on the end of the piston rod 23, and the outer surface of the bite block 3 is fixedly connected to the threaded rod 6. The end of the piston rod 23 located outside the shell 21 is fixedly connected to the threaded sleeve 7 adapted to the threaded rod 6. The threaded rod 6 can be screwed in or out of the threaded sleeve 7. The threaded rod 6 is hollow inside, and the piston rod 23 and the telescopic bag 33 are both connected to the threaded rod 6.

[0073] In this embodiment, in actual application, the bite piece 322 can be made of a rubber material with a certain toughness to avoid wear on the patient's teeth during use. The moving component 2, the pneumatic component 4 and the connecting plate 1 can all be made of stainless steel. They are reusable parts. The bite block 3 and the piston rod 23 are detachable. After use, the bite block 3 can be rotated to make the threaded rod 6 on the bite block 3 unscrewed from the inside of the threaded sleeve 7, thereby disassembling the bite block 3. For reusable parts such as the moving component 2, the pneumatic component 4 and the connecting plate 1, they need to be disinfected according to medical standards after use to ensure the safety of subsequent use.

[0074] The present invention covers any substitution, modification, equivalent method and scheme made on the essence and scope of the present invention. In order to make the public have a thorough understanding of the present invention, specific details are described in detail in the following preferred embodiments of the present invention, but those skilled in the art can fully understand the present invention without the description of these details. In addition, in order to avoid unnecessary confusion about the essence of the present invention, well-known methods, processes, procedures, components and circuits are not described in detail.

[0075] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. An oral digital restoration mouth opener, comprising a connecting plate, characterized in that: The connecting plate is arranged in a semi-circular shape, and both ends of the opening side of the connecting plate are connected with bite blocks through a moving assembly, and the two groups of bite blocks are arranged opposite to each other. When the connecting plate is placed horizontally, the moving assembly can make the two groups of bite blocks move relative to each other at the end of the connecting plate; The moving components all include a shell, a first piston plate and a piston rod. The shape of the first piston plate is adapted to the internal cross-section of the shell, and the first piston plate is installed in the shell. One end of the piston rod is fixedly connected to the first piston plate, and the other end of the piston rod passes through the shell and is connected to the bite block. A connecting pipe is connected through one side of the outer surface of the shell, and a pneumatic component is arranged between the two groups of connecting pipes. The pneumatic component can supply or exhaust air to the shell. The pneumatic components all include an air chamber opened in the middle of the connecting plate, one end of the connecting pipe is connected to the air chamber, a second piston plate adapted thereto is arranged inside the air chamber, the second piston plate forms a moving pair inside the air chamber, and a push rod is fixedly connected to the surface of the second piston plate, and the end of the push rod away from the second piston plate passes through the outside of the air chamber, a limiting groove is opened on the outer surface of the connecting plate, the limiting groove is located between the two groups of air chambers, and the end of the push rod located outside the air chamber is inserted with the limiting rod, and the limiting groove and the limiting rod are perpendicular to the moving direction of the limiting rod; a first spring is sleeved on the surface of the piston rod, the first spring is located inside the shell, and one end of the first spring is fixedly connected to the inner surface of the shell, and the other end of the first spring is fixedly connected to the first piston plate; The bite block parts all include a seat body, which can be detachably mounted on the end of the piston rod, and two groups of bite parts are arranged inside the seat body, a telescopic bag is fixedly connected between the two groups of bite parts, the interior of the piston rod is hollow, and the telescopic bag is through-connected to the interior of the piston rod, one end of the piston rod located inside the shell is arranged in an open shape, and a baffle is arranged at the open end of the piston rod, a connecting rod is fixedly connected to the surface of the baffle, a cylindrical groove is opened inside the piston rod, one end of the connecting rod is cooperatedly mounted inside the cylindrical groove, a second spring is sleeved on the surface of the connecting rod, one end of the second spring is fixedly connected to the cylindrical groove, and the other end of the second spring is fixedly connected to one end of the connecting rod, a slider is slidably connected to the inner wall of the shell, and the lower end of the slider is fixedly connected to the upper end of the baffle, and a limiting flange for limiting the slider and the first piston plate is also integrally formed on the inner wall of the shell.

2. The mouth opener for oral digital restoration according to claim 1, characterized in that: A third spring is sleeved on the outer surface of the limit rod, one end of the third spring is fixedly connected to the end of the limit rod, and the other end of the third spring is fixedly connected to the push rod. When the limit rod is flush with the limit groove, the vertical distance between the push rod and the limit groove is smaller than the length of the limit rod; when the third spring is in a natural state, there is an overlapping portion between the limit rod and the limit groove.

3. The mouth opener for oral digital restoration according to claim 2, characterized in that: The engaging portion includes two slides symmetrically slidably connected to one side of the seat body, two gears rotatably connected to one side of the two slides, two engaging parts rotatably connected to the other side of the two slides and fixed to the gears, two groups of guide grooves opened on one side of the two slides, and two groups of guide rods respectively connected to one side of the two engaging parts and inserted in the two groups of guide grooves. Two tooth grooves are symmetrically opened on one side of the slide to accommodate two gears and mesh with the gears respectively.

4. The mouth opener for oral digital restoration according to claim 3, characterized in that: Two ball sleeves are fixedly connected to one side of the bite piece, and the two ball sleeves are respectively sleeved on the outside of the two guide rods and located in the two guide grooves. Two movable grooves are arranged inside the bite piece, and one end of the two guide rods passes through the two movable grooves and extends into the inside of the bite piece. An anti-skid stabilization component is also connected to the inside of the bite piece, and the anti-skid stabilization component includes two limit plates respectively located in the two movable grooves and fixed to the outside of the guide rod, two fourth springs respectively located in the movable grooves and sleeved on the outside of the guide rod, and two fourth springs respectively fixed to the two guide rods. Two connecting rods 1 at the extending end of the rod, two horizontal plates movably connected inside the bite piece and respectively fixed to the ends of the connecting rod 1, multiple inclined top flanges fixed to one side of the two horizontal plates, two groups of rubber blocks movably connected inside the bite piece, two connecting rods 2 movably connected inside the bite piece and respectively fixed to the two groups of rubber blocks, and multiple inclined grooves opened inside the two connecting rods 2 for accommodating the multiple inclined top flanges, the inner wall of the guide groove is provided with a step, and one side of the step is provided with an inclined surface, and one end of the guide rod located in the guide groove is provided with a chamfer.

5. The mouth opener for oral digital restoration according to claim 1, characterized in that: A pipe groove is pre-opened inside the connecting plate, and the connecting pipe is embedded in the pipe groove.

6. The mouth opener for oral digital restoration according to claim 1, characterized in that: The shells are all installed on the ends of the connecting plates through an adjusting mechanism, and the adjusting mechanism can adjust the relative positions of the shells and the connecting plates.

7. The mouth opener for oral digital restoration according to claim 6, characterized in that: The adjustment mechanisms all include a sliding sleeve fixedly installed at the end of the connecting plate, the shell is cooperatively installed inside the sliding sleeve and forms a moving pair therewith, fixing bolts are inserted on the surface of the sliding sleeve, a plurality of sets of thread grooves are provided on the surface of the shell, the thread grooves are arranged along the moving direction of the shell, and the fixing bolts are cooperatively installed inside the corresponding thread grooves.

8. The mouth opener for oral digital restoration according to claim 1, characterized in that: The bite block can be detachably mounted on the end of the piston rod, the outer surface of the bite block is fixedly connected to a threaded rod, one end of the piston rod located outside the shell is fixedly connected to a threaded sleeve adapted to the threaded rod, the threaded rod can be screwed in or out of the threaded sleeve, the threaded rod is hollow inside, and the piston rod and the telescopic bag are both connected to the threaded rod.

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