Movable scanning head acting on dental image plate scanner

Through the combination of a mobile scanning head and a position encoder, the damage caused by the image board moving in the scanner is solved, lossless scanning and precise positioning are achieved, and the image board is automatically removed after the scanning is completed.

CN223248232UActive Publication Date: 2025-08-22GUILIN WOODPECKER MEDICAL INSTR CO LTD
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Patent Information

Application Number
CN202422113528.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-08-29
Publication Date
2025-08-22
Estimated Expiration
2034-08-29

AI Technical Summary

Technical Problem

The scanning head of the existing dental image board scanner is fixed, which causes the image board to be easily worn or damaged during movement, and there is a risk of carding.

Method used

Using a mobile scanning head, the image plate is placed in the tray, and the scanning without the movement of the image plate is achieved through a threaded transmission shaft and a position encoder. The image plate is fixed with an electric lock and an automatic discharge spring to prevent shaking and damage.

Benefits of technology

It realizes that the image board does not need to be moved during the scanning process, avoids damage, and is positioned accurately. It will automatically eject the tray after scanning, which is easy to take out and accurate data recording.

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Abstract

The utility model discloses a movable scanning head acting on a dental image plate scanner, which relates to the technical field of medical equipment and comprises a base, and one side of the top of the base is fixedly connected with a control unit storage plate; the top of one end of the base is provided with an image plate groove for placing an image plate tray, the image plate tray is provided with a groove for placing and fixing an image plate, and one side of the image plate tray is provided with a clamping groove; a movable scanning head is arranged above the image plate groove, the side, close to the control unit storage plate, of the movable scanning head is fixedly connected with a connecting plate, and the end of the side, close to the control unit storage plate, of the connecting plate is fixedly connected with a sliding seat. The driving motor controls the threaded transmission shaft to rotate, the threaded transmission shaft drives the sliding seat to move in the rotating process, the sliding seat synchronously drives the connecting plate to move, and the movable scanning head moves along with the connecting plate. The image plate does not need to be moved during scanning, the image plate can be prevented from being damaged, and the edge of the image plate can be positioned more accurately by adding the position encoder.
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Description

Technical Field

[0001] The utility model relates to the technical field of medical equipment, in particular to a movable scanning head acting on a dental imaging plate scanner. Background Art

[0002] A dental imaging plate scanner is a device used to obtain images of teeth and oral tissue. It uses digital technology to scan X-ray images on dental imaging plates and convert them into digitized data. This digitized image data can be stored on a computer or cloud platform for easy viewing and management by the doctor at any time.

[0003] There are currently two commonly used scanning methods for dental image plate scanners: one is the belt suction type and the other is the drawer type. In both types of dental image plate scanners, the scanning head is fixed, and the image plate needs to be moved under the scanning head using a belt or a drawer. When using the belt type, the image plate needs to be placed between two belts, and the two belts are used to transfer the image plate to the bottom of the scanning head. When using the drawer type, the image plate needs to be placed in the drawer, and then the drawer is closed and reset, and the image plate is moved under the scanning head using the drawer.

[0004] When a belt suction-type solution is adopted, the belt will squeeze the image plate when moving it, causing wear of the image plate, and then the loss of stored information on the image plate, resulting in unclear imaging; when a drawer-type solution is adopted, there is a risk of cards being caught during the process of the drawer popping out and entering, causing the image plate to be scratched or bent, resulting in serious damage to the image plate. Utility Model Content

[0005] The purpose of the present utility model is to provide a mobile scanning head for use on a dental image plate scanner. The mobile scanning head is used to place the image plate into an image plate tray, which is then placed into an image plate slot. The image plate is scanned using the mobile scanning head. During the process, the image plate does not need to be moved, which can prevent the image plate from being damaged, thereby solving the technical problems raised by the above-mentioned background technology.

[0006] To achieve the above objectives, the present invention provides the following technical solutions:

[0007] A mobile scanning head for use on a dental image plate scanner includes a base, one side of the top of which is fixedly connected to a control unit storage plate; an image plate slot is provided on the top of one end of the base for placing an image plate tray; the image plate tray is provided with a groove for placing and fixing the image plate; and a card slot is provided on one side of the image plate tray;

[0008] A movable scanning head is provided above the image plate slot, and the side of the movable scanning head close to the control unit storage plate is fixedly connected to the connecting plate, and the end of the connecting plate close to the control unit storage plate is fixedly connected to the slide, and the slide is threadedly connected to the threaded transmission shaft; the end of the connecting plate away from the movable scanning head is fixedly connected to the laser scanning assembly.

[0009] As a further technical solution of the present invention, an optical signal simulator is provided on the top of the movable scanning head, and an optical signal simulation front end is provided at one end of the movable scanning head away from the connecting plate; the optical signal simulation front end is located on one side of the movable scanning head.

[0010] As a further technical solution of the present invention, the movable scanning head is tilted, and an image board erasing assembly is fixedly connected to the bottom of the movable scanning head, and the image board erasing assembly is located above the image board slot.

[0011] As a further technical solution of the present invention, the two ends of the threaded transmission shaft are respectively rotatably connected to the two bearing seats, and the two bearing seats are fixedly connected to the control unit storage plate; one end of the control unit storage plate is fixedly connected to the drive motor, and the output shaft of the drive motor is fixedly connected to one end of the threaded transmission shaft.

[0012] As a further technical solution of the present invention, the side of the slide seat away from the connecting plate is slidably connected to a slide rail, and the slide rail is fixedly connected to the control unit storage plate.

[0013] As a further technical solution of the present invention, an image board NFC coil is embedded in the image board.

[0014] As a further technical solution of the present invention, two grooves for placing automatic egress spring 1 and automatic egress spring 2 are provided on one side of the base close to the control unit storage plate. Automatic egress spring 1 and automatic egress spring 2 are both located at one end of the base close to the image board slot, and one end of automatic egress spring 1 and automatic egress spring 2 are both fixedly connected to the base.

[0015] As a further technical solution of the present invention, an electric lock is installed on the base, and the electric lock is located on a side adjacent to the image board slot and the second automatic exit spring.

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] 1. According to the present invention, the image board is first placed in the image board tray. The image board tray is provided with a groove for storing the image board, so that the image board tray can fix the image board to prevent the image board from moving or deflecting. Then, the image board tray is placed in the image board slot. When the image board tray moves in the image board slot, the automatic ejection spring 1 and the automatic ejection spring 2 are compressed until the slot of the image board tray moves to the electric lock. The electric lock will fix the image board tray in the image board slot by locking the slot of the image board tray to prevent the image board tray from shaking.

[0018] 2. In this utility model, a drive motor controls the rotation of a threaded drive shaft. During rotation, the threaded drive shaft drives the movement of a slide, which in turn drives the movement of a connecting plate. The mobile scan head then follows the movement of the connecting plate. The mobile scan head sweeps over the image plate. The threaded drive shaft system includes a position encoder that accurately reports the position of the mobile scan head. The image plate tray boundary is calibrated at the factory, and the position encoder value is stored, allowing the control system to obtain the boundary position status. When the mobile scan head begins to move, the acquisition link begins recording data. When the mobile scan head reaches the image plate tray and the delay is reached, the current position encoder value matches the image plate tray delay calibration value, indicating that the scan is complete. The user can then remove the image plate, the control system shuts down the laser scanning assembly, the acquisition link ends data recording, and the output data is stored. Simultaneously, the mobile scan head returns to its initial position for the next scan, completing the entire scanning cycle. The image plate does not need to be moved during scanning, preventing damage to the image plate. The addition of a position encoder allows for more precise edge positioning of the image plate.

[0019] 3. In the present invention, after the scan is completed, the electric lock is reset and no longer fixes the image plate tray. The image plate tray automatically pops out of the image plate slot under the action of the elastic force of the automatic ejection spring 1 and the automatic ejection spring 2, making it convenient for the staff to take it; the base of the image plate tray has an NFC reading function, which can read the NFC coil signal of the image plate embedded in the image plate in the image plate tray, thereby associating the image data with the ID of the image plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a three-dimensional structural diagram of the utility model.

[0021] Figure 2 This utility model Figure 1 Top view of .

[0022] Figure 3 This utility model Figure 1 main view.

[0023] Figure 4 This utility model Figure 3 AA cross-sectional view.

[0024] Figure 5 This utility model Figure 4 AA cross-sectional view.

[0025] Figure 6 It is a structural schematic diagram of the double image board tray of the present utility model.

[0026] Figure 7 It is a structural schematic diagram of the image board of the present utility model.

[0027] Figure 8 This is a positional relationship diagram of the imaging board NFC coil and the imaging board of the utility model.

[0028] In the figure: 1- movable scanning head, 2- image board slot, 3- threaded transmission shaft, 4- base, 5- control unit storage board, 6- laser scanning component, 7- optical signal analog front end, 8- image board erasing component, 9- driving motor, 10- image board tray, 11- automatic exit spring 1, 12- automatic exit spring 2, 13- electric lock, 14- double image board tray, 15- image board, 16- image board NFC coil, 17- connecting plate, 18- slide seat, 19- slide rail. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0030] See also Figure 1-8 In an embodiment of the present invention, a mobile scanning head for use on a dental image plate scanner includes a base 4, one side of the top of which is fixedly connected to a control unit storage plate 5; an image plate slot 2 for placing an image plate tray 10 is provided at the top of one end of the base 4, the image plate tray 10 is provided with a groove for placing and fixing an image plate 15, and a card slot is provided on one side of the image plate tray 10;

[0031] A movable scanning head 1 is provided above the image plate slot 2. The side of the movable scanning head 1 close to the control unit storage plate 5 is fixedly connected to the connecting plate 17. The end of the connecting plate 17 close to the control unit storage plate 5 is fixedly connected to the slide 18. The slide 18 is threadedly connected to the threaded transmission shaft 3; the end of the connecting plate 17 away from the movable scanning head 1 is fixedly connected to the laser scanning assembly 6.

[0032] By adopting the above technical solution, the driving motor 9 controls the rotation of the threaded transmission shaft 3. During the rotation, the threaded transmission shaft 3 drives the slide 18 to move. The slide 18 synchronously drives the connecting plate 17 to move, and the mobile scanning head 1 follows the connecting plate 17 to move; the mobile scanning head 1 sweeps over the image plate 15, and the threaded transmission shaft 3 system includes a position encoder, which can accurately feedback the position of the mobile scanning head 1. The boundary of the image plate tray 10 will be calibrated at the factory and the position code value will be saved, so that the control system can obtain the boundary position status. When the mobile scanning head 1 starts to move, the acquisition link starts to record data. When the mobile scanning head 1 moves to the image plate tray 10 and delays, the current value of the position encoder is consistent with the calibration record value of the image plate tray 10, indicating that the scan is completed. At this time, the user can take out the image plate 15, the control system turns off the laser scanning component 6, the acquisition link ends data recording, and the output data is saved. At the same time, the mobile scanning head 1 returns to its original position and returns to the initial position for the next scan, and the entire scanning cycle ends. The image plate 15 does not need to be moved during scanning, which can prevent the image plate 15 from being damaged. By adding a position encoder, the edge positioning of the image plate 15 can be made more accurate.

[0033] In this embodiment, an optical signal simulator is provided on the top of the mobile scanning head 1, and an optical signal simulation front end 7 is provided at one end of the mobile scanning head 1 away from the connecting plate 17; the optical signal simulation front end 7 is located on one side of the mobile scanning head 1;

[0034] The movable scanning head 1 is tilted, and an image board erasing assembly 8 is fixedly connected to the bottom of the movable scanning head 1. The image board erasing assembly 8 is located above the image board slot 2.

[0035] The two ends of the threaded transmission shaft 3 are respectively rotatably connected to the two bearing seats, and the two bearing seats are fixedly connected to the control unit storage plate 5; one end of the control unit storage plate 5 is fixedly connected to the drive motor 9, and the output shaft of the drive motor 9 is fixedly connected to one end of the threaded transmission shaft 3;

[0036] The side of the slide 18 away from the connecting plate 17 is slidably connected to the slide rail 19, and the slide rail 19 is fixedly connected to the control unit storage plate 5;

[0037] An image board NFC coil 16 is embedded in the image board 15 .

[0038] By adopting the above technical solution, the image board 15 is first placed in the image board tray 10, which is provided with a groove for storing the image board 15, so that the image board tray 10 can fix the image board 15 to prevent the image board 15 from moving or deflecting; then the image board tray 10 is placed in the image board slot 2, and the image board tray 10 compresses the automatic ejection spring 11 and the automatic ejection spring 2 12 when moving in the image board slot 2, until the slot of the image board tray 10 moves to the electric lock 13, and the electric lock 13 will fix the image board tray 10 in the image board slot 2 by locking the slot of the image board tray 10 to prevent the image board tray 10 from shaking.

[0039] In this embodiment, the base 4 is provided with two grooves for accommodating the automatic exit spring 11 and the automatic exit spring 2 12 on one side close to the control unit storage plate 5. The automatic exit spring 11 and the automatic exit spring 2 12 are both located at one end of the base 4 close to the image board slot 2, and one end of the automatic exit spring 11 and the automatic exit spring 2 12 are both fixedly connected to the base 4.

[0040] The base 4 is provided with an electric lock 13, which is located on a side of the image board slot 2 adjacent to the second automatic exit spring 12;

[0041] As a further illustration of the above technical solution, in addition to the image board tray 10 , the tray is further provided with a double image board tray 14 , and the double image board tray 14 is provided with two grooves for placing image boards 15 .

[0042] By adopting the above technical solution, after the scan is completed, the electric lock 13 is reset and no longer fixes the image plate tray 10. The image plate tray 10 automatically pops out of the image plate slot 2 under the elastic force of the automatic ejection spring 11 and the automatic ejection spring 2 12, making it convenient for staff to take it out. The base of the image plate tray 10 has an NFC reading function, which can read the signal of the image plate NFC coil 16 embedded in the image plate 15 in the image plate tray 10, thereby associating the image data with the ID of the image plate 15.

[0043] Furthermore, by using the mobile scanning head 1 to scan the two image plates 15 of the dual image plate tray 14, two dental films can be taken at one time. By splicing the two dental films, a larger image can be obtained, which is convenient for the doctor to observe.

[0044] The working principle of the utility model is as follows: first, the image board 15 is placed in the image board tray 10, which is provided with a groove for storing the image board 15, so that the image board tray 10 can fix the image board 15 and prevent the image board 15 from moving or deflecting; then the image board tray 10 is placed in the image board slot 2, and when the image board tray 10 moves in the image board slot 2, the automatic ejection spring 11 and the automatic ejection spring 2 are compressed until the slot of the image board tray 10 moves to the electric lock 13, and the electric lock 13 will fix the image board tray 10 in the image board slot 2 by locking the slot of the image board tray 10, preventing the image board tray 10 from shaking;

[0045] The driving motor 9 controls the rotation of the threaded transmission shaft 3. During the rotation, the threaded transmission shaft 3 drives the slide 18 to move. The slide 18 synchronously drives the connecting plate 17 to move, and the movable scanning head 1 follows the connecting plate 17 to move. The movable scanning head 1 sweeps over the image plate 15. The threaded transmission shaft 3 system includes a position encoder, which can accurately feedback the position of the movable scanning head 1. The boundary of the image plate tray 10 will be calibrated at the factory and the position code value will be saved, so that the control system can obtain the boundary position status. When the mobile scanning head 1 starts to move, the acquisition link starts to record data. When the mobile scanning head 1 moves to the image plate tray 10 and the delay is reached, the current value of the position encoder is consistent with the calibration record value of the image plate tray 10, indicating that the scan is complete. At this time, the user can remove the image plate 15, the control system turns off the laser scanning component 6, the acquisition link ends data recording, and the output data is saved. At the same time, the mobile scanning head 1 returns to its original position and returns to the initial position for the next scan, and the entire scanning cycle ends. The image plate 15 does not need to be moved during scanning, which can prevent the image plate 15 from being damaged. By adding a position encoder, the edge positioning of the image plate 15 can be made more accurate.

[0046] After the scan is completed, the electric lock 13 is reset and no longer fixes the image board tray 10. The image board tray 10 automatically pops out of the image board slot 2 under the action of the automatic ejection spring 11 and the automatic ejection spring 2 12, making it convenient for the staff to take it; the base of the image board tray 10 has an NFC reading function, which can read the signal of the image board NFC coil 16 embedded in the image board 15 in the image board tray 10, thereby associating the image data with the ID of the image board 15.

[0047] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A mobile scanning head for use on a dental imaging plate scanner, characterized in that: The apparatus comprises a base (4), one side of the top of the base (4) being fixedly connected to a control unit storage plate (5); an image board slot (2) for placing an image board tray (10) is provided at the top of one end of the base (4); a groove for placing and fixing an image board (15) is provided on the image board tray (10); and a card slot is provided on one side of the image board tray (10); A movable scanning head (1) is provided above the image plate slot (2). The movable scanning head (1) is fixedly connected to a connecting plate (17) on a side close to the control unit storage plate (5). The end of the connecting plate (17) on one side close to the control unit storage plate (5) is fixedly connected to a slide (18), and the slide (18) is threadedly connected to the threaded transmission shaft (3); and a laser scanning assembly (6) is fixedly connected to the end of the connecting plate (17) away from the movable scanning head (1).

2. The mobile scanning head for use on a dental imaging plate scanner according to claim 1, characterized in that: An optical signal simulator is provided on the top of the mobile scanning head (1), and an optical signal simulation front end (7) is provided at one end of the mobile scanning head (1) away from the connecting plate (17); the optical signal simulation front end (7) is located on one side of the mobile scanning head (1).

3. The mobile scanning head for use on a dental imaging plate scanner according to claim 2, wherein: The movable scanning head (1) is arranged to be tilted, and an image board erasing component (8) is fixedly connected to the bottom of the movable scanning head (1), and the image board erasing component (8) is located above the image board slot (2).

4. The mobile scanning head for use on a dental imaging plate scanner according to claim 3, wherein: The two ends of the threaded transmission shaft (3) are respectively rotatably connected to two bearing seats, and the two bearing seats are fixedly connected to the control unit storage plate (5).

5. The mobile scanning head for use on a dental imaging plate scanner according to claim 4, wherein: One end of the control unit storage plate (5) is fixedly connected to a drive motor (9), and the output shaft of the drive motor (9) is fixedly connected to one end of the threaded transmission shaft (3).

6. The mobile scanning head for use on a dental imaging plate scanner according to claim 5, wherein: The side of the slide seat (18) away from the connecting plate (17) is slidably connected to a slide rail (19), and the slide rail (19) is fixedly connected to the control unit storage plate (5).

7. The mobile scanning head for use on a dental imaging plate scanner according to claim 6, wherein: An image board NFC coil (16) is embedded inside the image placement board (15).

8. The mobile scanning head for use on a dental imaging plate scanner according to claim 7, wherein: The base (4) is provided with two grooves for placing the first automatic exit spring (11) and the second automatic exit spring (12) on one side close to the control unit storage plate (5).

9. The mobile scanning head for use on a dental imaging plate scanner according to claim 8, characterized in that: The automatic exit spring 1 (11) and the automatic exit spring 2 (12) are both located at one end of the base (4) close to the image board slot (2), and one end of the automatic exit spring 1 (11) and the automatic exit spring 2 (12) are both fixedly connected to the base (4).

10. The mobile scanning head for use on a dental imaging plate scanner according to claim 9, characterized in that: An electric lock (13) is installed on the base (4), and the electric lock (13) is located on a side of the image board slot (2) adjacent to the second automatic exit spring (12).