A mandibular support device for oral CT

Abstract

The present invention discloses a mandibular support device for oral CT, which relates to the field of oral medical instruments, and comprises an oral CT mounting frame, an adjusting part and a fixing part, wherein the oral CT mounting frame is rotatably connected with an oral CT scanner, an adjusting seat is arranged below the oral CT mounting frame, and a fixing platform is fixedly connected with the oral CT mounting frame; the adjusting part is arranged on the fixing platform, and the adjusting part comprises a moving platform for adjusting the angle of the fixing part and moving it to the mandibular part of a user; the present invention controls the volume of compressed air in the fixed airbags on the mounting slot 1 and the mounting slot 2 on the support platform through a blowing and suction machine, and the blowing and suction machine respectively blows and adjusts the fixed airbags on the mounting slot 1 and the mounting slot 2; the fixed airbags on the mounting slot 1 and the mounting slot 2 fix the mandibular part of the user, so as to prevent the user from slightly moving the head when the oral CT scanner rotates and scans, thereby ensuring the accurate imaging of the scanned three-dimensional image model.

Description

Technical Field

[0001] The present invention relates to the field of oral medical instruments, and more particularly to a mandibular supporting device for oral CT. Background Art

[0002] Oral CT collects data in a spiral manner around a volume of the human body. The essential difference between oral CT and conventional CT is that the former obtains three-dimensional information, while the latter obtains two-dimensional information. Oral CT has improved scanning speed, has a wide scanning coverage, and collects volume data without gaps, which is convenient for image reconstruction in various ways and angles. Oral CT can reflect tissue conditions from a three-dimensional perspective, and can detect lesions that cannot be detected by the projection angle of oral X-rays, or are more subtle. Its three-dimensional reconstruction effect can accurately evaluate the condition of bone tissue and mandibular joints, assist doctors in pre-operative plan design, and post-operative scientific evaluation. When performing oral CT, users usually need to use a mandibular support device to maintain the stability of the user's head, ensuring that the CT scanner collects volume data on the user's head without gaps. However, the more common oral CT scanners in the prior art usually require the user to stand or sit on a chair, and then place the user's lower jaw on a support plate. During the rotation scanning process of the oral CT scanner, the user may move his head slightly, resulting in deviations in the scanned three-dimensional image model. In addition, the existing oral CT scanners are not suitable for people who cannot move due to neck injuries. Therefore, we designed a lower jaw support device for oral CT. Summary of the invention

[0003] In view of the fact that in the process of rotation scanning of an oral CT scanner in the prior art, the user may have slight head movements, which may cause deviations in the scanned three-dimensional image model, and the existing oral CT scanner is not suitable for people who cannot move due to neck injuries, the purpose of the present invention is to provide a mandibular support device for oral CT.

[0004] To solve the above problems, the present invention adopts the following technical solutions.

[0005] A mandibular support device for oral CT comprises an oral CT mounting frame, an adjusting portion and a fixing portion, wherein an oral CT scanner is rotatably connected to the oral CT mounting frame, an adjusting seat is arranged below the oral CT mounting frame, and a fixing table is fixedly connected to the oral CT mounting frame; The adjusting part is arranged on a fixing platform, and the adjusting part comprises a moving platform for adjusting the angle of the fixing part and moving it to the lower jaw of the user; The fixing part is arranged on the moving platform, and is used to fix the lower jaw of the user to prevent the user from slightly moving his head.

[0006] Furthermore, a threaded cylinder is fixedly connected to the bottom of the adjustable seat, an internal thread is provided in the threaded cylinder, a threaded column is connected to the internal thread of the threaded cylinder, and an end of the threaded column away from the threaded cylinder is coaxially fixedly connected to a fixed support plate.

[0007] Furthermore, the adjustment unit further includes: A rotating connection block is arranged between the fixed platform and the movable platform, the fixed platform is rotatably connected to the rotating connection block, a second motor is fixedly mounted on the fixed platform, and an output end of the second motor is fixedly connected to the rotating connection block; The rotating connection block and the moving platform are both provided with damping shaft platforms, and a damping shaft is provided between the plurality of damping shaft platforms.

[0008] Furthermore, a pair of handles are provided on the mobile platform, a mounting cavity is provided inside the mobile platform, and a head support assembly is provided on the mobile platform.

[0009] Furthermore, the head support assembly includes: a group of rotating shafts rotatably connected to the moving platform, a first motor is fixedly installed in the installation cavity, an output end of the first motor is coaxially fixedly connected to one of the rotating shafts, a group of rotating shafts are coaxially fixedly connected with gear one and gear two, and a group of rotating shafts are fixedly connected with telescopic frames at one end away from the first motor, a group of telescopic frames are symmetrically arranged, and a group of telescopic frames are provided with head fixing rods.

[0010] Furthermore, a group of the head fixing rods are symmetrically arranged on a group of telescopic frames, the head fixing rods are arranged in an arc shape, and rubber pads are arranged on the sides of the group of the head fixing rods that are close to each other.

[0011] Furthermore, the fixing portion includes: A support platform fixedly mounted on the mobile platform, the support platform is cylindrical, a groove is provided at one end of the support platform away from the mobile platform, a first installation groove and a second installation groove are provided in the groove, a fixed airbag is provided in each of the first installation groove and the second installation groove, and a mandibular support opening is provided on the support platform; A blowing and suction machine is fixedly installed in the installation cavity, and an air port 1 and an air port 2 are provided on the blowing and suction machine. The air port 1 and the air port 2 are both connected with a connecting air pipe. One end of a group of connecting air pipes away from the blowing and suction machine is respectively connected with a group of fixed air bags, and a compression sensor is provided on the fixed air bags.

[0012] Furthermore, a bite rod is provided on the support platform, and a plurality of disinfection nozzles are provided on the support platform, and the plurality of disinfection nozzles are arranged facing the mandibular support opening and the fixed airbag.

[0013] Compared with the prior art, the present invention has the following beneficial effects: (1) The present application controls the volume of compressed air in the fixed airbags on the mounting slot 1 and the mounting slot 2 on the support table through a blower and a suction machine, and the blower and a suction machine respectively adjusts the fixed airbags on the mounting slot 1 and the mounting slot 2 through the air port 1 and the air port 2; the fixed airbags on the mounting slot 1 and the mounting slot 2 fix the user's lower jaw to prevent the user from making slight head movements when the oral CT scanner rotates for scanning, thereby ensuring the accurate imaging of the scanned three-dimensional image model.

[0014] (2) The present application drives the rotating connecting block and the moving platform to adjust the angle through the output end of the second motor. At the same time, the rotating connecting block and the moving platform are rotatably connected through the damping shaft platform and the damping shaft, which has a large degree of freedom in space, making it easy to adjust the angle of the fixed part and move it to the user's mandible. The operation is simple and convenient, and the user can be quickly fitted with the fixed part in conjunction with the adjustment seat.

[0015] (3) The present application ensures that the user's lower jaw is close to the fixed part by adjusting the adjustable seat, and then rotates the fixed support plate downward so that the fixed support plate is close to the ground, ensuring that the adjustable seat will not shift after the user sits on the adjustable seat, which is more convenient to use. Then, by adjusting the backrest on the adjustable seat, the fixed part is adjusted to an angle and moved to the user's lower jaw through the adjustment part. This is suitable for patients who cannot take care of themselves and has a wide range of uses. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A schematic diagram of the overall structure of a mandibular support device for oral CT provided in an embodiment of the present application; Figure 2 A schematic diagram of the overall installation structure of a mandibular support device for oral CT and an oral CT scanner provided in an embodiment of the present application Figure 1 ; Figure 3 A schematic diagram of the overall installation structure of a mandibular support device for oral CT and an oral CT scanner provided in an embodiment of the present application Figure 2 ; Figure 4 A schematic diagram of the structure of a head support assembly of a mandibular support device for oral CT provided in an embodiment of the present application; Figure 5 A schematic diagram of the structure of the fixing part of a mandibular support device for oral CT provided in an embodiment of the present application; Figure 6 This is a schematic diagram of the installation structure of a fixed air bag and a blower and suction machine of a mandibular support device for oral CT provided in an embodiment of the present application.

[0017] Description of the numbers in the figure: 1. Oral CT mounting frame; 11. Oral CT scanner; 2. Adjust the seat; 21. Threaded cylinder; 22. Threaded column; 23. Fix the support plate; 3. Adjustment unit; 31. Moving platform; 311. Telescopic frame; 32. Handle; 33. Head fixing rod; 34. Rotating shaft; 35. First motor; 351. Gear 1; 36. Gear 2; 37. Fixed platform; 38. Rotating connecting block; 39. Second motor; 4. Fixed part; 41. Support platform; 411. Mounting slot 1; 412. Mounting slot 2; 42. Fixed airbag; 421. Tablet pressing sensor; 43. Engagement rod; 44. Connecting air pipe; 45. Blower and suction machine; 46. Disinfection nozzle. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention; it is obvious that the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making creative work are within the scope of protection of the present invention.

[0019] Example 1, please refer to Figures 1 to 6 , which is the first embodiment of the present invention, and provides a mandibular support device for oral CT, comprising an oral CT mounting frame 1, an adjusting portion 3 and a fixing portion 4, an oral CT scanner 11 is rotatably connected to the oral CT mounting frame 1, an adjusting seat 2 is provided below the oral CT mounting frame 1, and a fixing table 37 is fixedly connected to the oral CT mounting frame 1; A threaded cylinder 21 is fixedly connected to the bottom of the adjustable seat 2, and an internal thread is provided in the threaded cylinder 21. A threaded column 22 is connected to the internal thread of the threaded cylinder 21, and a fixed support plate 23 is coaxially fixedly connected to the end of the threaded column 22 away from the threaded cylinder 21; the adjustable seat 2 is a prior art, and has height adjustment and rotation adjustment in structure, and angle adjustment on the backrest; Usage process: first, the user sits on the adjustable seat 2, and ensures that the user's lower jaw is close to the fixing part 4 by adjusting the adjustable seat 2, and then rotates the fixing support plate 23 downward to make the fixing support plate 23 close to the ground, ensuring that the adjustable seat 2 will not be offset after the user sits on the adjustable seat 2, which is more convenient to use. Then, by adjusting the backrest on the adjustable seat 2, the fixing part 4 is adjusted to an angle through the adjusting part 3 and moved to the user's lower jaw. It is suitable for patients who cannot take care of themselves and has a wide range of uses; The adjusting part 3 and the fixing part 4 are then used to support the user's mandible and upper limbs, so that the oral CT scanner 11 can acquire volume data without gaps, facilitate image reconstruction in various ways and at various angles, and prevent the user from making slight head movements when the oral CT scanner 11 rotates for scanning, thereby ensuring accurate imaging of the scanned three-dimensional image model.

[0020] Embodiment 2, as Figures 1 to 4 FIG. 2 is a second embodiment of the present invention. Different from the previous embodiment, this embodiment provides an adjustment part 3 of a mandibular support device for oral CT. The adjustment part 3 is arranged on a fixed platform 37. The adjustment part 3 includes a moving platform 31 for adjusting the angle of the fixed part 4 and moving it to the mandibular part of the user. The adjusting part 3 further includes a rotating connection block 38 disposed between the fixed platform 37 and the movable platform 31, the fixed platform 37 is rotatably connected to the rotating connection block 38, a second motor 39 is fixedly mounted on the fixed platform 37, and an output end of the second motor 39 is fixedly connected to the rotating connection block 38; The rotating connecting block 38 and the moving platform 31 are both provided with damping shaft platforms, and a damping shaft is provided between the multiple damping shaft platforms; Usage process: The output end of the second motor 39 drives the rotating connection block 38 and the moving platform 31 to adjust the angle. At the same time, the rotating connection block 38 and the moving platform 31 are rotatably connected through the damping shaft platform and the damping shaft, which has a large degree of freedom in space, making it easy to adjust the angle of the fixing part 4 and move it to the user's mandible, and the operation is simple and convenient; The user can be quickly fitted with the fixing part 4 by adjusting the seat 2, and the fixing part 4 can be adjusted to an angle and moved to the user's mandible by adjusting the adjusting part 3. The fixing part 4 is suitable for people who cannot move due to neck injuries. It is also suitable for patients who cannot take care of themselves, and has a wide range of applications. Reference Figure 3 and Figure 4 As shown, a pair of handles 32 are provided on the mobile platform 31, a mounting cavity is provided in the mobile platform 31, and a head support assembly is provided on the mobile platform 31; the head support assembly includes: a group of rotating shafts 34 rotatably connected to the mobile platform 31, a first motor 35 is fixedly installed in the mounting cavity, an output end of the first motor 35 is coaxially fixedly connected to one of the rotating shafts 34, a group of rotating shafts 34 are coaxially fixedly connected with a gear 1 351 and a gear 2 36, and a group of rotating shafts 34 are fixedly connected with one end away from the first motor 35, a group of the rotating shafts 34 are fixedly connected with a telescopic frame 311, a group of the telescopic frames 311 are symmetrically arranged, and a group of the telescopic frames 311 are provided with a head fixing rod 33; A group of head fixing rods 33 are symmetrically arranged on a group of telescopic frames 311. The head fixing rods 33 are arranged in an arc shape, and a rubber pad is arranged on one side of the group of head fixing rods 33 to protect the user's head and increase the friction with the user's head. Usage process: the user holds the handle 32 with both hands to keep the upper body stable, and drives the gear 1 351 and the gear 2 36 to mesh and transmit through the output end of the first motor 35, thereby realizing the relative rotation of the pair of telescopic frames 311, and adjusting a set of head fixing rods 33 to both sides of the user's head; A set of head fixing rods 33 and a pair of telescopic frames 311 are detachably connected by sliding. The head fixing rods 33 are arranged in an arc shape, and the pair of telescopic frames 311 do not contact the user. The length of the head fixing rods 33 in the telescopic frames 311 can be adjusted by pulling, which is convenient for size adjustment. It is easy to use and has a wide range of applications. By removing the head fixing rods 33, the user can avoid being affected by a circuit failure in the first motor 35.

[0021] Embodiment 3, as Figure 5 and Figure 6 FIG. 4 is a third embodiment of the present invention. Different from the previous embodiment, this embodiment provides a fixing part 4 of a mandibular support device for oral CT. The fixing part 4 is arranged on a moving platform 31. The fixing part 4 is used to fix the mandibular part of the user to prevent the user from making slight head movements. The fixing part 4 includes: a support platform 41 fixedly mounted on the moving platform 31, the support platform 41 is cylindrical, a groove is provided at one end of the support platform 41 away from the moving platform 31, a mounting groove 1 411 and a mounting groove 2 412 are respectively provided in the groove, a fixed airbag 42 is provided in each of the mounting groove 1 411 and the mounting groove 2 412, and a mandibular supporting opening is provided on the support platform 41; A blower and suction machine 45 is fixedly installed in the installation cavity, and an air port 1 and an air port 2 are provided on the blower and suction machine 45, and both the air port 1 and the air port 2 are connected to a connecting air pipe 44, and one end of a group of connecting air pipes 44 away from the blower and suction machine 45 is respectively connected to a group of fixed air bags 42, and a tablet sensor 421 is provided on the fixed air bag 42; Furthermore, a bite rod 43 is provided on the support platform 41, and a plurality of disinfection nozzles 46 are provided on the support platform 41, and the plurality of disinfection nozzles 46 are arranged directly opposite to the mandibular support opening and the fixed airbag 42; Usage process: the user places the mandible on the mandible support opening on the support platform 41, bites the bite rod 43 on the support platform 41, and controls the volume of compressed air in the fixed airbags 42 on the mounting groove 1 411 and the mounting groove 2 412 on the support platform 41 through the blower and sucker 45, and the blower and sucker 45 respectively blows and sucks air to the fixed airbags 42 on the mounting groove 1 411 and the mounting groove 2 412 through the air port 1 and the air port 2; The fixed airbags 42 on the mounting slot 1 411 and the mounting slot 2 412 are adjusted to shrink or expand, and the pressure reading of the tablet sensor 421 is fed back to the control panel, and then the control panel controls the blowing and suction machine 45 to fix the user's mandible to prevent the user from making slight head movements when the oral CT scanner 11 rotates for scanning, thereby ensuring the accurate imaging of the scanned three-dimensional image model. After the oral CT scanner 11 completes the scanning, alcohol is sprayed to the fixed airbags 42 through the disinfection nozzle 46 for disinfection.

[0022] From the above, we can see that the working principle of this application is as follows: First, the user sits on the adjustable seat 2, and ensures that the user's lower jaw is close to the fixing part 4 by adjusting the adjustable seat 2, and then rotates the fixing support plate 23 downward so that the fixing support plate 23 is close to the ground, ensuring that the adjustable seat 2 will not be offset after the user sits on the adjustable seat 2, which is more convenient to use. Then, by adjusting the backrest on the adjustable seat 2, the fixing part 4 is adjusted to an angle through the adjusting part 3 and moved to the user's lower jaw, which is still applicable to patients who cannot take care of themselves; When the adjusting part 3 is in use, the output end of the second motor 39 drives the rotating connecting block 38 and the moving platform 31 to adjust the angle. At the same time, the rotating connecting block 38 and the moving platform 31 are rotatably connected through the damping shaft platform and the damping shaft, which has a large degree of freedom in space, making it easy to adjust the angle of the fixing part 4 and move it to the user's mandible, so as to cooperate with the adjustment seat 2 to quickly fit the user to the fixing part 4. The user holds the handle 32 with both hands to keep the upper body stable, and drives the gear 1 351 and the gear 2 36 to mesh and transmit through the output end of the first motor 35, thereby realizing the relative rotation of the pair of telescopic frames 311, and adjusting a set of head fixing rods 33 to both sides of the user's head. The set of head fixing rods 33 and the pair of telescopic frames 311 are detachably connected by sliding. The head fixing rods 33 are arranged in an arc shape, and the pair of telescopic frames 311 do not contact the user. By removing the head fixing rods 33, the user is prevented from being affected when a circuit failure occurs in the first motor 35. When the fixing part 4 is in use, the user places the mandible on the mandibular supporting opening on the supporting platform 41, bites the bite rod 43 on the supporting platform 41, and controls the volume of compressed air in the fixed airbags 42 on the mounting slot 1 411 and the mounting slot 2 412 on the supporting platform 41 through the blowing and suction machine 45. The blowing and suction machine 45 respectively blows and adjusts the fixed airbags 42 on the mounting slot 1 411 and the mounting slot 2 412 through the air port 1 and the air port 2; the fixed airbags 42 on the mounting slot 1 411 and the mounting slot 2 412 fix the mandible of the user to prevent the user from slightly moving the head when the oral CT scanner 11 rotates for scanning, thereby ensuring the accurate imaging of the scanned three-dimensional image model. After the oral CT scanner 11 completes the scanning, alcohol is sprayed to the fixed airbags 42 through the disinfection nozzle 46 for disinfection.

[0023] The above is only a preferred specific implementation of the present invention; however, the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solution and its improved conception within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A mandibular support device for oral CT, characterized in that: include: An oral CT mounting frame (1), an adjustment portion (3) and a fixing portion (4), wherein the oral CT mounting frame (1) is rotatably connected to an oral CT scanner (11), an adjustment seat (2) is provided below the oral CT mounting frame (1), and a fixing table (37) is fixedly connected to the oral CT mounting frame (1); The adjusting portion (3) is arranged on a fixing platform (37), and the adjusting portion (3) comprises a moving platform (31) for adjusting the angle of the fixing portion (4) and moving the fixing portion (4) to the lower jaw of the user; The fixing part (4) is arranged on the moving platform (31), and the fixing part (4) is used to fix the lower jaw of the user to prevent the user from making slight movements of the head.

2. The mandibular support device for oral CT according to claim 1, characterized in that: The bottom of the adjustable seat (2) is fixedly connected to a threaded cylinder (21), the threaded cylinder (21) is provided with internal threads, the threaded cylinder (21) is internally threadedly connected to a threaded column (22), and one end of the threaded column (22) away from the threaded cylinder (21) is coaxially fixedly connected to a fixed support plate (23).

3. The mandibular support device for oral CT according to claim 1, characterized in that: The adjustment unit (3) further includes: a rotatable connecting block (38) disposed between the fixed platform (37) and the movable platform (31), the fixed platform (37) being rotatably connected to the rotatable connecting block (38), a second motor (39) being fixedly mounted on the fixed platform (37), and an output end of the second motor (39) being fixedly connected to the rotatable connecting block (38); The rotating connection block (38) and the moving platform (31) are both provided with damping shaft platforms, and a damping shaft is provided between the plurality of damping shaft platforms.

4. A mandibular support device for oral CT according to any one of claims 1 to 3, characterized in that: A pair of handles (32) are provided on the mobile platform (31), a mounting cavity is provided inside the mobile platform (31), and a head support assembly is provided on the mobile platform (31).

5. The mandibular support device for oral CT according to claim 4, characterized in that: The head support assembly comprises: a group of rotating shafts (34) rotatably connected to the moving platform (31); a first motor (35) is fixedly installed in the installation cavity; an output end of the first motor (35) is coaxially fixedly connected to one of the rotating shafts (34); a gear 1 (351) and a gear 2 (36) are coaxially fixedly connected to a group of rotating shafts (34); an end of a group of rotating shafts (34) away from the first motor (35) is fixedly connected to a telescopic frame (311); a group of telescopic frames (311) are symmetrically arranged; and a head fixing rod (33) is provided on a group of telescopic frames (311).

6. The mandibular support device for oral CT according to claim 5, characterized in that: A group of the head fixing rods (33) are symmetrically arranged on a group of telescopic frames (311); the head fixing rods (33) are arranged in an arc shape, and rubber pads are provided on the adjacent sides of the group of the head fixing rods (33).

7. The mandibular support device for oral CT according to claim 4, characterized in that: The fixing part (4) comprises: a support platform (41) fixedly mounted on the mobile platform (31), the support platform (41) being cylindrical, a groove being provided at one end of the support platform (41) away from the mobile platform (31), a first mounting groove (411) and a second mounting groove (412) being provided in the groove, a fixed air bag (42) being provided in each of the first mounting groove (411) and the second mounting groove (412), and a mandibular supporting opening being provided on the support platform (41); A blower (45) is fixedly installed in the installation cavity, and the blower (45) is provided with an air port 1 and an air port 2, and the air port 1 and the air port 2 are both connected to a connecting air pipe (44), and one end of a group of connecting air pipes (44) away from the blower (45) is respectively connected to a group of fixed air bags (42), and a tablet pressing sensor (421) is provided on the fixed air bag (42).

8. The mandibular support device for oral CT according to claim 7, characterized in that: The support platform (41) is provided with a bite rod (43), and the support platform (41) is provided with a plurality of disinfection nozzles (46), and the plurality of disinfection nozzles (46) are arranged opposite to the mandibular support opening and the fixed airbag (42).

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