Manual Beads fine adjustment and correction structure tool for CBCT (cone beam computed tomography)
By designing the manual Beads fine-tuning correction structural tooling for CBCT, the problem that manual operation of CBCT geometric correction in the prior art depends on manual experience and low accuracy is solved, and high-precision geometric correction and standardized adjustment are achieved, saving labor costs.
Patent Information
- Application Number
- CN202421013940.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-11
- Publication Date
- 2025-04-29
- Estimated Expiration
- 2034-05-11
AI Technical Summary
In the prior art, manual operation of CBCT geometric correction relies on manual experience, resulting in low accuracy, and skilled personnel also need multiple adjustments to meet the accuracy requirements.
A manual Beads fine-tuned and corrected structural tooling for CBCT is designed, including a bracket, a rotating platform, a front and rear displacement platform and a left and right displacement platform. The precise adjustment of the Beads phantom is achieved through guide rails and precision adjustment rods.
Through imaging labeling and precise adjustment of deviation distance and angle, the accuracy and standardization of geometric correction are significantly improved, the frequency of manual adjustment is reduced, and labor costs are saved.
Smart Images
Figure CN222811530U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of fine adjustment tooling for CBCT geometric correction, in particular to a manual beads fine adjustment correction structure tooling for CBCT. Background Art
[0002] Geometric correction is a part of CT image correction. Compared with panoramic correction and lateral correction, geometric correction has higher accuracy requirements. The current geometric correction requires placing the Beads phantom on a bracket first, and moving the Beads phantom through rotation, translation and other operations so that the steel balls on the Beads phantom are respectively at the center of the vertical and horizontal lines of the phantom's top view after CT image reconstruction.
[0003] When debugging existing equipment, the Beads phantom is adjusted by manual movement and rotation. This operation is purely based on experience. A skilled person may be able to meet the placement accuracy requirements after two or three adjustments during the initial CT imaging and observation of the image. An unskilled person may still find that the phantom is too far forward, too far backward, or deflected after multiple imaging adjustments. The manual Beads fine-tuning correction structure tooling is designed to solve the problem of manual alignment, which is purely based on experience and is imprecise.
[0004] Therefore, we proposed a manual Beads fine-tuning correction structure tooling for CBCT in order to solve the above-mentioned manual Beads fine-tuning correction structure tooling is to solve the problem of manual alignment, purely based on experience, and inaccuracy. Utility Model Content
[0005] The utility model aims to solve the shortcomings of manual beads fine adjustment and correction structure tooling for equipment in the prior art, which is manual alignment, purely based on experience and inaccurate, and proposes a manual beads fine adjustment and correction structure tooling for CBCT.
[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a manual beads fine adjustment correction structure tooling for CBCT, comprising a bracket and a rotating platform, the lower surface of the bracket is rotatably connected with the rotating platform, the lower surface of the rotating platform is fixedly connected with a rotating fixing seat by screws, the lower surface of the rotating fixing seat is fixedly connected with a front-and-back displacement platform by screws, the lower surface of the front-and-back displacement platform is provided with a left-and-right displacement platform, the lower surface of the left-and-right displacement platform is provided with a displacement platform fixing seat, the front-and-back displacement platform moves forward and backward on the upper surface of the left-and-right displacement platform through a guide rail, the left-and-right displacement platform moves left-and-right on the upper surface of the displacement platform fixing seat through a guide rail, and the guide rails arranged between the front-and-back displacement platform and the left-and-right displacement platform can make the front-and-back displacement platform and the left-and-right displacement platform move smoothly, thereby reducing the jamming between the front-and-back displacement platform and the left-and-right displacement platform when the equipment is moving and adjusting, and the difficulty in quick adjustment occurs.
[0007] Furthermore, the lower surface of the displacement platform fixing seat is fixedly connected to a mounting seat using screws, and the lower surface of the mounting seat is fixedly connected to a threaded pin, and the mounting seat is provided to facilitate the overall installation and connection of the equipment.
[0008] Furthermore, a magnet is clamped inside the bottom of the mounting seat, and a first micrometer is provided on the side of the rotating platform. The magnet is provided to facilitate preliminary restriction of the mounting seat.
[0009] Furthermore, a rotating adjustment rod and a rotating locking rod are respectively provided on both sides of the rotating platform, and micrometer fixing blocks are respectively provided on the sides of the left and right displacement platforms and the displacement platform fixing seat. The micrometer fixing block is provided to facilitate the limiting of the second micrometer, thereby reducing the occurrence of the second micrometer being offset due to external force.
[0010] Furthermore, micrometer blocks are respectively provided on the sides of the front and rear displacement platforms and the left and right displacement platforms, and a second micrometer is provided inside the micrometer fixing block. The micrometer block is provided to block the second micrometer, making it convenient for the user to reset the second micrometer after use.
[0011] Furthermore, one end of the second micrometer is in contact with the side of the micrometer block, and a displacement locking rod is provided on the side of the left and right displacement platforms. The displacement locking rod is provided to facilitate stabilization between the front and rear displacement platforms and the left and right displacement platforms after the equipment is adjusted, thereby reducing the occurrence of random sliding of the front and rear displacement platforms and the left and right displacement platforms after the equipment is adjusted.
[0012] Compared with the prior art, the advantages and positive effects of the utility model are:
[0013] Compared with the previous manual placement of Beads phantoms, which resulted in excessive position adjustment, the fine-tuning tooling can be precisely adjusted through imaging annotations and based on deviation distance and angle.
[0014] Compared with the previous frequent placement of phantoms, with the support of accurate data, the frequency of phantom adjustments has been greatly reduced, saving labor costs.
[0015] Compared with the original practice of adjusting the phantom purely based on experience, there are now clear standards for fine-tuning the structure, regularization of geometric correction, and improved standardization. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 A three-dimensional structural schematic diagram of a manual Beads fine adjustment correction structure tooling for CBCT is proposed for the utility model;
[0017] Figure 2 A schematic diagram of the front view structure of a manual Beads fine adjustment correction structure tooling for CBCT is proposed for the utility model;
[0018] Figure 3 A side view structural schematic diagram of a manual Beads fine adjustment correction structural tooling for CBCT is proposed for the utility model;
[0019] Figure 4 The utility model provides a schematic diagram of the upward structure of a manual Beads fine adjustment correction structure tooling for CBCT;
[0020] Figure 5 The utility model provides a top view structural schematic diagram of a manual beads fine adjustment correction structural tooling for CBCT.
[0021] Legend: 1. Bracket; 2. First micrometer; 3. Rotating adjustment rod; 4. Rotating platform; 5. Rotating fixed seat; 6. Rotating locking rod; 7. Front and rear displacement platform; 8. Left and right displacement platform; 9. Displacement platform fixed seat; 10. Magnet; 11. Mounting seat; 12. Threaded pin; 13. Micrometer stop block; 14. Micrometer fixing block; 15. Second micrometer; 16. Guide rail; 17. Displacement locking rod. DETAILED DESCRIPTION
[0022] See also Figure 1-5 The utility model provides a technical solution: a manual Beads fine adjustment correction structure tooling for CBCT, comprising a bracket 1 and a rotating platform 4, wherein the lower surface of the bracket 1 is rotatably connected to the rotating platform 4.
[0023] The following is a detailed description of the specific settings and functions of the Beads fine-tuning and correction structure tooling.
[0024] In this embodiment: the lower surface of the rotating platform 4 is fixedly connected to the rotating fixed seat 5 by screws, the lower surface of the rotating fixed seat 5 is fixedly connected to the front-rear displacement platform 7 by screws, the lower surface of the front-rear displacement platform 7 is provided with a left-right displacement platform 8, the lower surface of the left-right displacement platform 8 is provided with a displacement platform fixing seat 9, the front-rear displacement platform 7 moves forward and backward on the upper surface of the left-right displacement platform 8 through the guide rail 16, and the left-right displacement platform 8 moves left-right on the upper surface of the displacement platform fixing seat 9 through the guide rail 16.
[0025] In the present embodiment: by setting the guide rail 16 between the front and rear displacement platform 7 and the left and right displacement platform 8, the front and rear displacement platform 7 and the left and right displacement platform 8 can move smoothly, thereby reducing the possibility of jamming between the front and rear displacement platform 7 and the left and right displacement platform 8 when the equipment is moving and adjusting, and the difficulty in quick adjustment.
[0026] Specifically, the lower surface of the displacement platform fixing seat 9 is fixedly connected with the mounting seat 11 by means of screws, and the lower surface of the mounting seat 11 is fixedly connected with a threaded pin 12. The mounting seat 11 is provided to facilitate the overall installation and connection of the device.
[0027] Specifically, a magnet 10 is clamped inside the bottom of the mounting seat 11 , and a first micrometer 2 is provided on the side of the rotating platform 4 . The magnet 10 is provided to facilitate preliminary restriction of the mounting seat 11 .
[0028] Specifically, a rotating adjustment rod 3 and a rotating locking rod 6 are respectively provided on both sides of the rotating platform 4, and a micrometer fixing block 14 is respectively provided on the sides of the left and right displacement platforms 8 and the displacement platform fixing seat 9. The micrometer fixing block 14 is provided to facilitate the limiting of the second micrometer 15, thereby reducing the occurrence of the second micrometer 15 being offset due to the influence of external force.
[0029] Specifically, micrometer blocks 13 are respectively provided on the sides of the front and rear displacement platforms 7 and the left and right displacement platforms 8, and a second micrometer 15 is provided inside the micrometer fixing block 14. The micrometer block 13 is provided to block the second micrometer 15, so that the user can reset the second micrometer 15 after use.
[0030] Specifically, one end of the second micrometer 15 abuts against the side of the micrometer stop 13, and a displacement locking rod 17 is provided on the side of the left and right displacement platforms 8. The displacement locking rod 17 is provided to facilitate stabilizing the front and rear displacement platforms 7 and the left and right displacement platforms 8 after the equipment is adjusted, thereby reducing the possibility of random sliding of the front and rear displacement platforms 7 and the left and right displacement platforms 8 after the equipment is adjusted.
[0031] Working principle: First, the mounting base 11 is fixed to the CBCT device through two threaded pins 12, wherein the magnet 10 can assist in providing a certain force to adsorb on the device, and then the Beads phantom is placed on the bracket 1. When placing, the steel ball of the phantom can be aligned with the cross center line of the bracket 1, so that the phantom and the steel ball are symmetrical about the center line under visual observation; this can further determine the center position of the phantom and reduce the operation of subsequent geometric correction. Visual placement is a preliminary correction and is only for reference. The specific position shall be based on the actual reconstructed image; CT scans Beads, and observes the image after imaging. The image shows deflection and the center of the phantom is not in the center of the cross line; first adjust the body The front, back, left and right directions of the model are mainly to adjust the center of the circle to the center of the scanning imaging to facilitate subsequent angle rotation. There are distance markings on the imaging software. Connect two relatively opposite steel balls to determine the center of the circle, and mark the distances from the center of the circle to the front, back, left and right directions. Move the front, back, left and right directions by rotating and adjusting the second micrometer 15, and the center of the phantom coincides with the scanning center; then adjust the deflection state of the phantom, and the image is based on the cross center line, showing that the left steel ball is above the right steel ball, that is, the phantom imaging shows clockwise movement. If it needs to be at the same height, it needs to be rotated counterclockwise, and the first micrometer 2 is rotated to drive the rotating platform 4, and the whole set of structural fine-tuning is completed.
[0032] Compared with the previous manual placement of Beads phantoms, which resulted in excessive position adjustments, fine-tuning tooling can be accurately adjusted through imaging annotations and based on deviation distance and angle; compared with the previous frequent placement of phantoms, with the support of accurate data, the frequency of phantom adjustments has been greatly reduced, saving labor costs; compared with the previous adjustment of phantoms based purely on experience, there are now clear fine-tuning structural standards, standardization of geometric corrections, and improved standardization.
Claims
1. A manual beads fine adjustment correction structure tool for CBCT, comprising a bracket (1) and a rotating platform (4), characterized in that: The lower surface of the bracket (1) is rotatably connected to a rotating platform (4), the lower surface of the rotating platform (4) is fixedly connected to a rotating fixed seat (5) by means of screws, the lower surface of the rotating fixed seat (5) is fixedly connected to a front-rear displacement platform (7) by means of screws, the lower surface of the front-rear displacement platform (7) is provided with a left-right displacement platform (8), the lower surface of the left-right displacement platform (8) is provided with a displacement platform fixed seat (9), the front-rear displacement platform (7) is moved forward and backward on the upper surface of the left-right displacement platform (8) via a guide rail (16), and the left-right displacement platform (8) is moved left-right on the upper surface of the displacement platform fixed seat (9) via a guide rail (16).
2. The manual beads fine adjustment and correction structure tool for CBCT according to claim 1, characterized in that: The lower surface of the displacement platform fixing seat (9) is fixedly connected to a mounting seat (11) using screws, and the lower surface of the mounting seat (11) is fixedly connected to a threaded pin (12).
3. The manual beads fine adjustment and correction structure tooling for CBCT according to claim 2, characterized in that: A magnet (10) is clamped inside the bottom of the mounting seat (11), and a first micrometer (2) is arranged on the side of the rotating platform (4).
4. The manual beads fine adjustment and correction structure tool for CBCT according to claim 3, characterized in that: A rotation adjustment rod (3) and a rotation locking rod (6) are respectively provided on both sides of the rotation platform (4), and a micrometer fixing block (14) is respectively provided on the side surfaces of the left and right displacement platforms (8) and the displacement platform fixing seat (9).
5. The manual beads fine adjustment and correction structure tool for CBCT according to claim 4, characterized in that: Micrometer blocks (13) are respectively arranged on the sides of the front and rear displacement platforms (7) and the left and right displacement platforms (8), and a second micrometer (15) is arranged inside the micrometer fixing block (14).
6. The manual beads fine adjustment and correction structure tool for CBCT according to claim 5, characterized in that: One end of the second micrometer (15) abuts against the side surface of the micrometer stopper (13), and a displacement locking rod (17) is provided on the side surfaces of the left and right displacement platforms (8).