Protective oral cavity support for oral cavity restoration

By designing a combination structure of a bent base plate and an opening module, the problem of obstruction in traditional oral supports is solved, achieving stable and comfortable oral opening and improving the convenience and comfort of oral restoration.

CN120859702AInactive Publication Date: 2025-10-31BEIJING FRIENDSHIP HOSPITAL CAPITAL MEDICAL UNIV
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Patent Information

Application Number
CN202511076076.7
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-08-01
Publication Date
2025-10-31
Estimated Expiration
Not applicable · inactive patent

AI Technical Summary

Technical Problem

When using traditional oral supports, the front of the mouth is obstructed by instrument components, which affects medical staff's observation and repair operations of the patient's mouth, and the prolonged stretching increases the patient's pain.

Method used

A protective oral support device was designed, comprising a bent base plate, an extension plate, an oral expansion mechanism, and a spreading module. The combined structure of the support rod and the spreading module, along with the threaded installation of the threaded rod and the dental tray, achieves stable spreading of the patient's teeth. Flexible materials and limiting components enhance the support stability and comfort.

Benefits of technology

It achieves stable opening of the patient's oral cavity, avoids instrument obstruction, reduces patient pain, and improves the convenience and comfort of oral restoration.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention discloses a protective oral cavity support for oral cavity restoration, and relates to the technical field of oral cavity support. The protective oral cavity supporting device for oral cavity restoration comprises a bent base plate and an oral cavity expansion mechanism, the oral cavity expansion mechanism comprises a rectangular opening and a supporting plate, a limiting assembly is installed at the bottom of the supporting plate, a supporting rod is installed in the middle of the top of the supporting plate, and a connecting rod is hinged to the top of the supporting rod; supporting clamping teeth are fixedly installed at the top of the outer circle face of the supporting rod, a distraction module is installed at the end, away from the supporting rod, of the connecting rod and comprises a threaded rod and a tooth supporting plate, the threaded rod is rotationally installed at the end, away from the supporting rod, of the connecting rod, and the top of the tooth supporting plate is installed on the surface of the threaded rod in a threaded mode. The side of the surface of the denture plate is fixedly connected with a connecting elastic piece, and one end, far away from the denture plate, of the connecting elastic piece is fixedly connected with a tooth protecting piece, so that the purpose of supporting in a two-side partitioned manner is achieved, partitioned supporting can be realized, shielding is avoided, teeth are protected, and oral cavity restoration is facilitated.
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Description

Technical Field

[0001] This invention relates to the field of oral support technology, specifically a protective oral support for oral restoration. Background Technology

[0002] With improved living standards, the incidence of oral diseases has increased, necessitating oral treatment and restoration. During oral restoration, patients need to open their mouths, and protective oral retractors are used to support the oral cavity and maintain this open position. In the medical field, oral treatment and restoration are a major focus, and the increased incidence of oral diseases due to improved living standards makes treatment and restoration necessary. Oral retractors support the oral cavity during restoration, facilitating the dentist's work. Therefore, oral supports are required for both restoration and care.

[0003] Currently, traditional oral supports obstruct the view of the mouth from the front, making it difficult for medical staff to observe and perform repair procedures inside the mouth. This affects the repair time and, conversely, keeps the mouth open for extended periods, increasing pain. Summary of the Invention

[0004] To achieve the above objectives, the present invention provides the following technical solution:

[0005] A protective oral support for dental restoration, comprising:

[0006] A bent substrate and an extension piece fixedly installed on the side of the bent substrate surface, wherein a strip flexible member is fixedly connected at the junction between the top of the extension piece and the side of the bent substrate surface.

[0007] An oral cavity expansion mechanism for supporting a patient's oral cavity, the oral cavity expansion mechanism being mounted on the side of the top of a bent base plate;

[0008] The oral cavity expansion mechanism includes a rectangular opening and a support plate. The rectangular opening is located on the top side of the bent base plate. A limiting component is installed at the bottom of the support plate. A support rod is installed at the middle of the top of the support plate. A connecting rod is hinged to the top of the support rod. A support locking tooth is fixedly installed on the top of the outer surface of the support rod. An opening module is installed at the end of the connecting rod away from the support rod. Two symmetrical support rods and the opening module are installed at the position of the rectangular opening through the opening module. By using the limiting function of the support plate, the support plate and support rod are installed on the top of the bent base plate, and the connecting rod is locked in place at the top of the support locking tooth. This positions the connecting rod and prevents the opening module from shaking, thus helping to support the patient's oral cavity.

[0009] The opening module includes a threaded rod and a dental tray. The threaded rod is rotatably mounted on the end of the connecting rod away from the support rod. The top of the dental tray is threaded onto the surface of the threaded rod. A connecting spring is fixedly connected to the side of the dental tray surface. A dental guard is fixedly connected to the end of the connecting spring away from the dental tray. The dental tray and dental tray are placed together into the patient's mouth, and the dental tray is aligned with the patient's teeth. The threaded rod is then turned. Because the dental tray and threaded rod are threaded together, and the patient's teeth are positioned between the two dental guards, the dental tray is limited. By utilizing the opposite directions of the threads on the symmetrical sides of the threaded rod surface, the two symmetrical dental trays move to the sides, applying a pushing force to the patient's teeth, thereby opening the patient's mouth.

[0010] Preferably, the extension piece is installed at an angle, the strip flexible component is made of high-density sponge, the support rod is installed vertically, and there are two support rods installed symmetrically along the central axis of the bent substrate. By forming two sets of support rods and opening modules, both sets of support rods and opening modules can be installed together to provide bilateral support for the patient's oral cavity. Alternatively, one set of support rods and opening modules can be removed for unilateral zone support. This can be freely selected according to the specific situation of the patient's oral restoration, making it more flexible and versatile.

[0011] Preferably, the threads on the two symmetrical sides of the threaded rod surface are in opposite directions, both the dental tray and the dental brace are arc-shaped, and the connecting springs are evenly distributed on the sides of the dental tray surface. As the dental tray moves to both sides, it supports the patient's teeth, causing the arc-shaped surface of the dental brace to contact the sides of the teeth. Under the pushing force of the dental tray and the elastic support of the connecting springs, the dental brace is subjected to compressive force, and the connecting springs undergo elastic deformation, avoiding rigid compression. This protects the patient's teeth and is less likely to cause damage.

[0012] The two sets of support modules are in a separate state, and there is no connection between the two symmetrical connecting rods. The threaded rods can be adjusted at will to adjust the dental tray. There is no obstruction above the patient's mouth, which makes it convenient for medical staff and patients to carry out dental restoration.

[0013] Preferably, the limiting component includes a square plate, the top of which is fixedly connected to the bottom of the support plate, and the square plate is installed vertically. A first insert is fixedly connected to one side of the top surface of the square plate, and a snap-fit ​​square hole is opened at the bottom surface of the square plate. A second insert is fixedly connected to the side of the square plate away from the first insert. Both the first and second inserts are made of rubber. By inserting the square plate into the rectangular opening, the support rod and the expansion module can be initially limited. The first and second inserts are located between the square plate and the inner wall of the rectangular opening, and are compressed, causing the first and second inserts to deform flexibly, filling the gap between the square plate and the inner wall of the rectangular opening, thereby making the support plate more stable in supporting the support rod and the expansion module.

[0014] Preferably, a headrest mechanism is installed on the top of the bent substrate and on the side away from the rectangular opening. The headrest mechanism includes a strip hole and a headrest plate. The strip hole is opened on the top of the bent substrate. The bottom edge of the headrest plate is hinged to the top of the bent substrate and on the side away from the rectangular opening. A limiting pad is fixedly connected to the top edge of the headrest plate. A push rod is hinged to the bottom of the headrest plate. When the patient's head rests on the top of the headrest plate, the patient's neck is supported by the extension plate. The headrest plate rotates counterclockwise under the pressure of the patient's head. The headrest plate fits against the top of the bent substrate, and two symmetrical limiting pads are located on both sides of the patient's head, which can limit the patient's head and prevent the patient's head from shifting or tilting, which helps to support the oral cavity later.

[0015] Preferably, the headrest plate is installed at an angle, and the top of the headrest plate is an arc-shaped curved surface. There are two limiting pads, and the two limiting pads are installed symmetrically along the central axis at the middle of the headrest plate.

[0016] Preferably, the push rod is installed at an angle, there are two push rods, and the two push rods are installed symmetrically along the central axis in the middle of the headrest plate, and the push rod passes through the middle of the strip hole.

[0017] Preferably, the inner cavity of the bent substrate is equipped with a clamping mechanism, the clamping mechanism including a linear guide rail, an I-shaped slider is slidably installed inside the linear guide rail, a return spring is fixedly connected between the surface of the I-shaped slider and the inner wall of the linear guide rail, a strip-shaped connecting block is fixedly connected to the end of the I-shaped slider away from the linear guide rail, a top pressure rod is fixedly connected to the side of the surface of the strip-shaped connecting block, and the top pressure rod is installed on the side close to the extension piece, a positioning elastic piece is fixedly connected to the end of the top pressure rod away from the strip-shaped connecting block, and a notch is formed on the side of the top of the strip-shaped connecting block.

[0018] When the headrest plate is rotated counterclockwise by the pressure of the patient's head, a downward pressing force is applied to the push rod. The bottom end of the push rod is inserted into the notch and pushes the strip connecting block. Under the sliding connection of the I-shaped slider, the strip connecting block and the I-shaped slider move together towards the side closer to the square plate. The return spring is compressed. As the strip connecting block drives the top pressure rod to move, the positioning elastic plate is embedded into the snap-fit ​​square hole, which can lock the square plate in place and prevent it from loosening.

[0019] Preferably, the linear guide rails are horizontally mounted, and there are two linear guide rails, which are symmetrically mounted along the central axis of the bent substrate. The reset spring is installed in the middle of the interior of the linear guide rails.

[0020] Preferably, the strip connecting block is installed horizontally, and the two ends of the positioning elastic sheet are symmetrically bent along the central axis at the middle of the top pressure rod.

[0021] This invention provides a protective oral support for dental restoration. It has the following beneficial effects:

[0022] I. This protective oral support device for oral restoration involves installing two symmetrical support rods and an opening module into the rectangular opening via the opening module. The support plate limits the movement of the support plate and support rods, which are then mounted on top of the bent base plate. The connecting rod is engaged with the top of the support engagement teeth, thus positioning the connecting rod and preventing the opening module from wobbling. This helps to support the patient's oral cavity.

[0023] Second, this protective oral support for dental restoration consists of two sets of support rods and opening modules. Both sets of support rods and opening modules can be installed together to provide bilateral support for the patient's oral cavity. Alternatively, one set of support rods and opening modules can be removed to provide unilateral support. This allows for flexible and adaptable use, depending on the specific needs of the patient's dental restoration.

[0024] Third, the protective oral support of this oral restoration, when the threaded rod is turned and the patient's teeth are in the middle of the two support plates, can limit the position of the dental tray. By using the opposite threads on the two symmetrical sides of the threaded rod surface, the two symmetrical dental trays can be moved to the sides, which can apply a pushing force to the patient's teeth, thereby opening the patient's oral cavity.

[0025] Fourth, the protective oral support of this dental restoration has two sets of expansion modules in a separate state, and uses two symmetrical connecting rods without a connection in the middle. The threaded rod can be adjusted at will to adjust the dental tray, and there is no obstruction above the patient's mouth, which facilitates dental restoration for medical staff and patients.

[0026] Fifth, the protective oral support of this dental restoration supports the patient's teeth as the dental tray moves to both sides, so that the arc-shaped surface of the support plate contacts the edge of the tooth. Under the pushing force of the dental tray and the elastic support of the connecting spring, the support plate is subjected to compressive force, and the connecting spring deforms elastically, avoiding rigid compression. This protects the patient's teeth and is less likely to cause damage.

[0027] VI. The protective oral support device for this dental restoration, by inserting a square plate into the interior of a rectangular opening, can initially limit the support rod and the opening module as a whole. The first and second inserts are located between the square plate and the inner wall of the rectangular opening, and the first and second inserts are compressed, causing the first and second inserts to flexibly deform and fill the gap between the square plate and the inner wall of the rectangular opening, thereby making the support plate more stable in supporting the support rod and the opening module.

[0028] VII. The protective oral support device for this oral restoration allows the patient to lie flat on the treatment chair with their head resting on the top of the headrest board. The patient's neck is supported by the extension plate, and the headrest board rotates counterclockwise under the pressure of the patient's head. The headrest board fits against the top of the bent base plate, and two symmetrical limiting pads are located on both sides of the patient's head, which can limit the patient's head and prevent it from shifting or tilting, thus helping to support the oral cavity later.

[0029] 8. The protective oral support device for this dental restoration applies downward pressure to the push rod through the headrest plate. The bottom end of the push rod is inserted into the notch and applies a pushing force to the strip connecting block. Under the sliding connection of the I-shaped slider, the strip connecting block and the I-shaped slider move together towards the side closer to the square plate, and the return spring is compressed. As the strip connecting block drives the top pressure rod to move, the positioning elastic plate is embedded into the inside of the snap-fit ​​square hole, which can lock the square plate tightly and prevent it from loosening. Attached Figure Description

[0030] Figure 1This is a schematic diagram of the overall structure of the protective oral support for oral restoration according to the present invention;

[0031] Figure 2 This is a schematic diagram of the disassembled structure of the protective oral support for oral restoration according to the present invention;

[0032] Figure 3 This is a schematic diagram of the connection structure between the oral cavity expansion mechanism and the bent base plate of the present invention;

[0033] Figure 4 This is a schematic diagram of the overall structure of the oral cavity expansion mechanism of the present invention;

[0034] Figure 5 This is a schematic diagram of the overall structure of the expansion module of the present invention;

[0035] Figure 6 This is a schematic diagram of the connection structure between the headrest mechanism and the bent base plate of the present invention;

[0036] Figure 7 This is a schematic diagram of the overall structure of the headrest mechanism of the present invention;

[0037] Figure 8 This is a schematic diagram of the connection structure between the clamping mechanism and the bent substrate of the present invention;

[0038] Figure 9 This is a schematic diagram of the overall structure of the clamping mechanism of the present invention.

[0039] In the diagram: 1. Bending base plate; 2. Extension piece; 3. Strip flexible component; 4. Oral expansion mechanism; 5. Headrest mechanism; 6. Clamping mechanism; 41. Rectangular opening; 42. Support plate; 43. Limiting component; 44. Support rod; 45. Connecting rod; 46. Support locking teeth; 47. Spreading module; 431. Square plate; 432. First insert; 433. Locking square hole; 434. Second insert; 471. Threaded rod; 472. Dental tray; 473. Connecting spring; 474. Dental protector; 51. Strip hole; 52. Headrest plate; 53. Limiting pad; 54. Push rod; 61. Linear guide rail; 62. I-shaped slider; 63. Return spring; 64. Strip connecting block; 65. Top pressure rod; 66. Positioning elastic piece; 67. Notch groove. Detailed Implementation

[0040] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0041] First embodiment, such as Figures 1 to 5 As shown, the present invention provides a technical solution:

[0042] A protective oral support for dental restoration, comprising:

[0043] A bent substrate 1 and an extension piece 2 fixedly installed on the side of the surface of the bent substrate 1. A strip flexible member 3 is fixedly connected at the junction between the top of the extension piece 2 and the side of the surface of the bent substrate 1.

[0044] The oral cavity expansion mechanism 4 is used to support the patient's oral cavity. The oral cavity expansion mechanism 4 is installed on the side of the top of the bent base plate 1.

[0045] The oral expansion mechanism 4 includes a rectangular opening 41 and a support plate 42. The rectangular opening 41 is located on the side of the top of the bent base plate 1. A limiting component 43 is installed at the bottom of the support plate 42. A support rod 44 is installed in the middle of the top of the support plate 42. A connecting rod 45 is hinged to the top of the support rod 44. A support locking tooth 46 is fixedly installed on the top of the outer surface of the support rod 44. An opening module 47 is installed at the end of the connecting rod 45 away from the support rod 44. Medical staff install two symmetrical support rods 44 and the opening module 47 into the rectangular opening 41 through the opening module 47. By using the limiting function of the support plate 42, the support plate 42 and the support rod 44 are installed on the top of the bent base plate 1. The connecting rod 45 is locked in the top of the support locking tooth 46, which can position the connecting rod 45 so that the opening module 47 will not shake randomly.

[0046] The extension piece 2 is installed at an angle, the material of the strip flexible part 3 is high-density sponge, the support rod 44 is installed vertically, there are two support rods 44, and the two support rods 44 are installed symmetrically along the central axis of the bent substrate 1.

[0047] By using the support rod 44 and the opening module 47 as two sets, both sets of support rod 44 and opening module 47 can be installed together to provide bilateral support for the patient's oral cavity. Alternatively, one set of support rod 44 and opening module 47 can be removed to provide unilateral zone support.

[0048] The opening module 47 includes a threaded rod 471 and a dental tray 472. The threaded rod 471 is rotatably mounted on the end of the connecting rod 45 away from the support rod 44. The top of the dental tray 472 is threaded onto the surface of the threaded rod 471. A connecting spring 473 is fixedly connected to the side of the surface of the dental tray 472. A dental guard 474 is fixedly connected to the end of the connecting spring 473 away from the dental tray 472. The dental tray 472 and the dental tray 474 are placed into the patient's mouth together, and the dental tray 472 is aligned with the patient's teeth. The threaded rod 471 is turned, and the dental tray 472 is threaded onto the threaded rod 471. With the patient's teeth in the middle of the two dental guards 474, the dental tray 472 is limited. The opposite threads on the two symmetrical sides of the threaded rod 471 cause the two symmetrical dental trays 472 to move to the sides, applying a pushing force to the patient's teeth and opening the patient's mouth.

[0049] The threads on the two symmetrical sides of the threaded rod 471 are in opposite directions. Both the dental tray 472 and the dental brace 474 are arc-shaped. The connecting springs 473 are evenly distributed on the sides of the dental tray 472. As the dental tray 472 moves to both sides, it supports the patient's teeth, causing the arc-shaped surface of the dental brace 474 to contact the sides of the teeth. Under the pushing force of the dental tray 472 and the elastic support of the connecting springs 473, the dental brace 474 is subjected to compressive force. The connecting springs 473 undergo elastic deformation to avoid rigid compression and protect the patient's teeth.

[0050] The two sets of support modules 47 are in a separate state, and the threaded rods 471, which are not connected in the middle, allow the dental tray 472 to be adjusted at will. There is no obstruction above the patient's mouth, which facilitates dental restoration for medical staff and patients.

[0051] The limiting component 43 includes a square plate 431. The top of the square plate 431 is fixedly connected to the bottom of the support plate 42, and the square plate 431 is installed vertically. A first insert 432 is fixedly connected to the top side of the surface of the square plate 431. A snap-fit ​​square hole 433 is opened at the bottom of the surface of the square plate 431. A second insert 434 is fixedly connected to the surface of the square plate 431 away from the first insert 432. The materials of the first insert 432 and the second insert 434 are both made of rubber. The square plate 431 is inserted into the square plate 431. Once inside the rectangular opening 41, the support rod 44 and the expansion module 47 can be initially positioned. The first insert 432 and the second insert 434 are located between the square plate 431 and the inner wall of the rectangular opening 41, causing the first insert 432 and the second insert 434 to be compressed. The first insert 432 and the second insert 434 undergo flexible deformation to fill the gap between the square plate 431 and the inner wall of the rectangular opening 41, thereby making the support plate 42 provide more stable support for the support rod 44 and the expansion module 47.

[0052] The second embodiment is based on the first embodiment; please refer to [link / reference]. Figures 1 to 7 As shown:

[0053] A headrest mechanism 5 is installed on the top of the bent base plate 1 and on the side away from the rectangular opening 41. The headrest mechanism 5 includes a strip hole 51 and a headrest plate 52. The strip hole 51 is opened on the top of the bent base plate 1. The bottom side of the headrest plate 52 is hinged to the top of the bent base plate 1 and on the side away from the rectangular opening 41. A limiting pad 53 is fixedly connected to the top side of the headrest plate 52. A push rod 54 is hinged to the bottom of the headrest plate 52. When the patient lies flat on the treatment chair and rests his head on the top of the headrest plate 52, the patient's neck will be supported by the extension plate 2. The headrest plate 52 will rotate counterclockwise under the pressure of the patient's head. The headrest plate 52 fits against the top of the bent base plate 1, and two symmetrical limiting pads 53 are located on both sides of the patient's head to limit the patient's head so that the patient's head will not deviate or tilt.

[0054] The headrest plate 52 is installed at an angle, and the top of the headrest plate 52 is an arc-shaped curved surface. There are two limiting pads 53, and the two limiting pads 53 are installed symmetrically along the central axis of the middle of the headrest plate 52.

[0055] The push rod 54 is installed at an angle. There are two push rods 54, and the two push rods 54 are installed symmetrically along the central axis of the middle of the headrest plate 52. The push rod 54 passes through the middle of the strip hole 51.

[0056] The third embodiment is based on embodiments one and two; please refer to [link / reference]. Figures 1 to 9 As shown:

[0057] A clamping mechanism 6 is installed in the inner cavity of the bent substrate 1. The clamping mechanism 6 includes a linear guide rail 61. An I-shaped slider 62 is slidably installed inside the linear guide rail 61. A return spring 63 is fixedly connected between the surface of the I-shaped slider 62 and the inner wall of the linear guide rail 61. A strip-shaped connecting block 64 is fixedly connected to the end of the I-shaped slider 62 away from the linear guide rail 61. A top pressure rod 65 is fixedly connected to the side of the surface of the strip-shaped connecting block 64, and the top pressure rod 65 is installed on the side close to the extension piece 2. A positioning elastic piece 66 is fixedly connected to the end of the top pressure rod 65 away from the strip-shaped connecting block 64. The top edge of the strip-shaped connecting block 64... A notch 67 is provided on the side. When the headrest plate 52 is rotated counterclockwise by the pressure of the patient's head, a downward pressing force is applied to the push rod 54. The bottom end of the push rod 54 is inserted into the notch 67 and a pushing force is applied to the strip connecting block 64. Under the sliding connection of the I-shaped slider 62, the strip connecting block 64 and the I-shaped slider 62 move together towards the side closer to the square plate 431, and the return spring 63 is compressed. As the strip connecting block 64 drives the top pressure rod 65 to move, the positioning elastic piece 66 is embedded into the snap-fit ​​square hole 433, and the square plate 431 is snapped and locked.

[0058] The linear guide rail 61 is horizontally mounted. There are two linear guide rails 61, and the two linear guide rails 61 are symmetrically mounted along the central axis of the bent base plate 1. The reset spring 63 is installed in the middle of the interior of the linear guide rail 61.

[0059] The strip connecting block 64 is installed horizontally, and the two ends of the positioning elastic plate 66 are symmetrically bent along the central axis of the top pressure rod 65.

[0060] In use, the oral support is first installed in the designated position on the treatment chair through the round hole at the bottom of the bent base plate 1. The patient lies on the treatment chair with the patient's head initially suspended and raised, and the headrest board 52 is not pressed. The medical staff places two symmetrical support rods 44 and the opening module 47 on both sides of the patient's head and installs the opening module 47 into the rectangular opening 41. At this time, the patient's head slowly rests on the headrest board 52, and the opening module 47, which is in the initial contracted state, extends into the patient's oral cavity.

[0061] By utilizing the limiting function of the support plate 42, the support plate 42 and the support rod 44 are installed on the top of the bent substrate 1, and the connecting rod 45 is engaged with the top of the support engagement tooth 46, so that the connecting rod 45 can be positioned so that the entire expansion module 47 will not shake randomly.

[0062] Furthermore, by inserting the square plate 431 into the interior of the rectangular opening 41, the support rod 44 and the expansion module 47 can be initially positioned. The first insert 432 and the second insert 434 are located between the square plate 431 and the inner wall of the rectangular opening 41, causing the first insert 432 and the second insert 434 to be compressed. The first insert 432 and the second insert 434 undergo flexible deformation to fill the gap between the square plate 431 and the inner wall of the rectangular opening 41, thereby making the support plate 42 more stable in supporting the support rod 44 and the expansion module 47.

[0063] Simultaneously, when the headrest plate 52 is rotated counterclockwise by the pressure of the patient's head, a downward pressing force can be applied to the push rod 54. The bottom end of the push rod 54 is inserted into the notch 67 and a pushing force is applied to the strip connecting block 64. Under the sliding connection of the I-shaped slider 62, the strip connecting block 64 and the I-shaped slider 62 move together towards the side closer to the square plate 431, and the return spring 63 is compressed. As the strip connecting block 64 drives the top pressing rod 65 to move, the positioning elastic piece 66 is embedded into the snap-fit ​​square hole 433, and the square plate 431 is snapped and locked.

[0064] Furthermore, by turning the threaded rod 471, the dental tray 472 is threadedly installed with the threaded rod 471, and the patient's teeth are positioned between the two dental braces 474. This limits the position of the dental tray 472. By utilizing the opposite directions of the threads on the symmetrical sides of the threaded rod 471, the two symmetrical dental trays 472 move to the sides, applying a pushing force to the patient's teeth and opening the patient's mouth.

[0065] As the dental tray 472 moves to both sides to support the patient's teeth, the arc-shaped surface of the tooth protector 474 contacts the edge of the teeth. Under the pushing force of the dental tray 472 and the elastic support of the connecting spring 473, the tooth protector 474 is subjected to compressive force, and the connecting spring 473 undergoes elastic deformation to avoid rigid compression and protect the patient's teeth.

[0066] Furthermore, since the support rod 44 and the opening module 47 are in two sets, both sets of support rod 44 and opening module 47 can be installed together to provide bilateral support for the patient's oral cavity. Alternatively, one set of support rod 44 and opening module 47 can be removed to provide unilateral zone support.

[0067] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0068] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A protective oral support for dental restoration, characterized in that, include: A bent substrate (1) and an extension piece (2) fixedly installed on the side of the surface of the bent substrate (1), wherein a strip flexible member (3) is fixedly connected at the junction between the top of the extension piece (2) and the side of the surface of the bent substrate (1). Oral expansion mechanism (4), the oral expansion mechanism (4) is used to support the patient's oral cavity, the oral expansion mechanism (4) is installed on the side of the top of the bent base plate (1); The oral cavity expansion mechanism (4) includes a rectangular opening (41) and a support plate (42). The rectangular opening (41) is opened on the side of the top of the bent base plate (1). A limiting component (43) is installed at the bottom of the support plate (42). A support rod (44) is installed at the middle of the top of the support plate (42). A connecting rod (45) is hinged to the top of the support rod (44). A support locking tooth (46) is fixedly installed on the top of the outer circle of the support rod (44). A spreading module (47) is installed at the end of the connecting rod (45) away from the support rod (44). The expansion module (47) includes a threaded rod (471) and a dental tray (472). The threaded rod (471) is rotatably mounted on the end of the connecting rod (45) away from the support rod (44). The top of the dental tray (472) is threaded onto the surface of the threaded rod (471). A connecting spring (473) is fixedly connected to the side of the surface of the dental tray (472). A dental guard (474) is fixedly connected to the end of the connecting spring (473) away from the dental tray (472).

2. The protective oral support for oral restoration according to claim 1, characterized in that: The extension piece (2) is installed at an angle, the material of the strip flexible part (3) is high-density sponge, the support rod (44) is installed vertically, there are two support rods (44), and the two support rods (44) are installed symmetrically along the central axis at the middle of the bent substrate (1).

3. The protective oral support for oral restoration according to claim 1, characterized in that: The threads on the two symmetrical sides of the threaded rod (471) are opposite in direction. The dental tray (472) and the dental guard (474) are both arc-shaped. The connecting spring (473) is evenly distributed on the side of the dental tray (472).

4. The protective oral support for oral restoration according to claim 1, characterized in that: The limiting component (43) includes a square plate (431), the top of which is fixedly connected to the bottom of the support plate (42), and the square plate (431) is installed vertically. A first insert (432) is fixedly connected to the top side of the surface of the square plate (431), and a snap-fit ​​square hole (433) is opened at the bottom of the surface of the square plate (431). A second insert (434) is fixedly connected to the surface of the square plate (431) away from the first insert (432). The materials of the first insert (432) and the second insert (434) are both rubber.

5. A protective oral support for oral restoration according to claim 1, characterized in that: A headrest mechanism (5) is installed on the top of the bent substrate (1) and on the side away from the rectangular opening (41). The headrest mechanism (5) includes a strip hole (51) and a headrest plate (52). The strip hole (51) is opened on the top of the bent substrate (1). The headrest plate (52) is hinged to the bottom side of the bent substrate (1) on the top side away from the rectangular opening (41). A limit pad (53) is fixedly connected to the top side of the headrest plate (52). A push rod (54) is hinged to the bottom of the headrest plate (52).

6. A protective oral support for oral restoration according to claim 5, characterized in that: The headrest plate (52) is installed at an angle, and the top of the headrest plate (52) is an arc-shaped curved surface. There are two limiting pads (53), and the two limiting pads (53) are installed symmetrically along the central axis at the middle of the headrest plate (52).

7. A protective oral support for oral restoration according to claim 5, characterized in that: The push rod (54) is installed at an angle. There are two push rods (54), and the two push rods (54) are installed symmetrically along the central axis at the middle of the headrest plate (52). The push rod (54) passes through the middle of the strip hole (51).

8. A protective oral support for oral restoration according to claim 1, characterized in that: The inner cavity of the bent substrate (1) is equipped with a clamping mechanism (6). The clamping mechanism (6) includes a linear guide rail (61). An I-shaped slider (62) is slidably installed inside the linear guide rail (61). A return spring (63) is fixedly connected between the surface of the I-shaped slider (62) and the inner wall of the linear guide rail (61). A strip-shaped connecting block (64) is fixedly connected to one end of the I-shaped slider (62) away from the linear guide rail (61). A top pressure rod (65) is fixedly connected to the side of the surface of the strip-shaped connecting block (64). The top pressure rod (65) is installed on the side close to the extension piece (2). A positioning elastic piece (66) is fixedly connected to one end of the top pressure rod (65) away from the strip-shaped connecting block (64). A notch (67) is opened on the side of the top of the strip-shaped connecting block (64).

9. A protective oral support for oral restoration according to claim 8, characterized in that: The linear guide (61) is installed horizontally. There are two linear guides (61), and the two linear guides (61) are installed symmetrically along the central axis in the middle of the bent substrate (1). The reset spring (63) is installed in the middle of the interior of the linear guide (61).

10. A protective oral support for oral restoration according to claim 8, characterized in that: The strip connecting block (64) is installed horizontally, and the two ends of the positioning elastic sheet (66) are symmetrically bent along the central axis at the middle of the top pressure rod (65).