Cone-beam imaging device and imaging system for tumor radiotherapy

Abstract

The utility model discloses a cone-beam imaging device and imaging system for tumor radiotherapy, and relates to the technical field of medical instruments, the cone-beam imaging device comprises an annular frame, one side of the annular frame is provided with a base, the annular frame and the base are provided with the same adjusting assembly, the adjusting assembly comprises a plurality of hydraulic cylinders, the plurality of hydraulic cylinders are fixedly connected to the top of the base, and the hydraulic cylinders are arranged on the base. The tops of the multiple hydraulic cylinders are fixedly connected with the same movable table, the top of the base is fixedly connected with a soft shell, the top of the soft shell is fixedly connected to the bottom of the movable table, a stabilizing module is arranged on the ring frame, a first mounting groove is formed in the ring frame, and the stabilizing module comprises a movable ring. The cone-beam-shaped imaging device and the imaging system for tumor radiotherapy have the technical effects that CBCT (cone beam computed tomography) is quickly matched with radiotherapy for use, the positioning effect and the treatment efficiency are improved, the bulb tube focus, the flat panel detector and the area to be scanned are accurately positioned during scanning, and the image quality and the radiotherapy effect are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of medical equipment, in particular to a cone-beam imaging device and an imaging system for tumor radiotherapy. Background Art

[0002] As the name implies, cone beam CT is a cone beam projection computer reconstruction tomography device. Its principle is that the X-ray generator performs circular DR (digital projection) around the projection object with a low radiation dose. Then the data obtained from the "intersection" after multiple digital projections around the projection object are reorganized in the computer to obtain a three-dimensional image. The projection principle of CBCT to obtain data is completely different from that of traditional sector scanning CT, and is similar to the algorithm principle of later computer reconstruction.

[0003] In the prior art, CBCT is generally performed before radiotherapy and cannot be used quickly, which affects the positioning effect to a certain extent and reduces the treatment efficiency. In addition, it is difficult to accurately keep the focus of the tube, the flat-panel detector and the area to be scanned in a straight line during scanning, and the positioning of the area to be scanned is inaccurate, which reduces the quality of the image and further affects the radiotherapy effect. Utility Model Content

[0004] The utility model discloses a cone beam imaging device and an imaging system for tumor radiotherapy, aiming to solve the technical problems that CBCT and radiotherapy cannot be used in a fast coordinated manner, affecting the positioning effect, and the positioning is not accurate enough during scanning, resulting in low image quality.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a cone-beam imaging device for tumor radiotherapy comprises a ring frame, a base is arranged on one side of the ring frame, and the same adjustment component is arranged on the ring frame and the base, the adjustment component comprises a plurality of hydraulic cylinders, the plurality of hydraulic cylinders are fixedly connected to the top of the base, the tops of the plurality of hydraulic cylinders are fixedly connected to the same movable platform, the top of the base is fixedly connected to a soft shell, the top of the soft shell is fixedly connected to the bottom of the movable platform, a stabilizing module is arranged on the ring frame, and a mounting groove 1 is provided on the ring frame, the stabilizing module comprises a movable ring, the movable ring is movably connected to the mounting groove 1, a mounting groove 2 is provided on the ring frame, and a mounting ring is movably connected in the mounting groove 2, a mounting hole 1 and two opposite mounting holes 2 are provided on the mounting ring, a radiotherapy head is arranged in the mounting hole 1, a flat-panel detector and a tube are respectively arranged in the two opposite mounting holes 2, a sliding groove 1 is provided on the movable platform, and a sliding groove 1 is slidably connected to a sliding ring The movable frame, the sliding frame is provided with a circular hole 1 and two circular holes 2, a threaded rod is movably connected in the circular hole 1, the outer wall of the threaded rod is connected to a bed plate by a thread, the two circular holes 2 are fixedly connected to the fixing rods, the bed plate slides on the outer walls of the two fixing rods, the sliding frame is provided with a circular hole 3, a motor 1 is fixedly connected in the circular hole 3, the output end of the motor 1 is fixedly connected to one end of the threaded rod, the movable platform is provided with two sliding grooves 2 and two mounting grooves 3, and the two sliding grooves 2 are slidably connected with the sliding rods, the ends of the two sliding rods away from the movable platform are fixedly connected to the movable frame, the two movable frames are fixedly connected to the sliding frame, the two mounting grooves 3 are fixedly connected to the hydraulic rods, and the driving ends of the two hydraulic rods are fixedly connected to the corresponding movable frames, the ring frame is provided with a circular hole 4, and the circular hole 4 is fixedly connected to the motor 2, the output end of the motor 2 is fixedly connected to the gear 1, the outer wall of the mounting ring is fixedly connected to the gear ring 1, and the gear 1 and the gear ring 1 are meshed with each other.

[0006] By providing an adjustment component, the height is adjusted by a hydraulic cylinder, the movable frame is pushed by a hydraulic rod, and the sliding frame and the sliding rod are driven to move, so that the patient enters the scanning area, the threaded rod is rotated by a motor 1, and the bed board is driven to slide on the fixed rod, and the position of the bed board is adjusted horizontally for easy positioning, and the gear 1 is rotated by a motor 2 to mesh with the rotating gear ring 1 and the mounting ring, and the image is drawn through the tube and the flat-panel detector.

[0007] In a preferred solution, the outer wall of the movable ring is fixedly connected with a gear ring 2, and one side of the ring frame is fixedly connected with two symmetrical mounting frames, a mounting groove 4 is provided on a mounting frame close to the gear ring 2, a motor 3 is fixedly connected in the mounting groove 4, a gear 2 is fixedly connected to the output end of the motor 3, and the gear 2 is meshed with the gear ring 2, the movable ring is provided with two arc grooves, and sliding rods are slidably connected in the two arc grooves, sliding grooves 3 are provided on the two mounting frames, sliding rod frames are slidably connected in the two sliding grooves 3, the two sliding rod frames are fixedly connected to the corresponding sliding rods, and clamping members are fixedly connected on opposite sides of the two sliding rod frames.

[0008] By providing a stabilizing module, when the image drawing is completed, the motor three rotates the gear two, meshing the rotating gear ring two and the movable ring, forcing the sliding rod to slide in the arc groove, driving the sliding rod frame and the clamping member to move toward the center, clamping the mounting ring stably, and maintaining the stability of the radiotherapy head during radiotherapy.

[0009] An imaging system comprises the cone-beam imaging device for tumor radiotherapy as described above, and also comprises a system panel.

[0010] As can be seen from the above, the cone-beam imaging device and imaging system for tumor radiotherapy provided by the utility model have the technical effect of enabling CBCT to be used quickly in conjunction with radiotherapy, improving positioning effect and treatment efficiency, and keeping the focus of the tube, the flat-panel detector and the area to be scanned accurately positioned during scanning, thereby improving image quality and radiotherapy effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is a schematic diagram of the overall structure of the cone-beam imaging device for tumor radiotherapy proposed by the utility model;

[0012] Figure 2 This is a structural cross-sectional view of the movable platform of the adjustment component of the cone-beam imaging device for tumor radiotherapy proposed by the utility model;

[0013] Figure 3 This is a schematic diagram of the structure of the adjustment component of the cone-beam imaging device for tumor radiotherapy proposed by the utility model;

[0014] Figure 4 This is a schematic diagram of the structure of a stabilizing module of a cone-beam imaging device for tumor radiotherapy proposed by the utility model.

[0015] In the attached drawings: 1. ring frame; 2. base; 3. soft shell; 4. radiotherapy head; 5. flat panel detector; 6. tube; 7. bed board; 8. adjustment assembly; 801. movable table; 802. sliding frame; 803. fixed rod; 804. threaded rod; 805. motor 1; 806. movable frame; 807. hydraulic rod; 808. sliding rod; 809. hydraulic cylinder; 810. mounting ring; 811. gear ring 1; 812. gear 1; 813. motor 2; 9. stabilization module; 901. gear ring 2; 902. movable ring; 903. arc groove; 904. sliding rod; 905. gear 2; 906. motor 3; 907. clamping member; 908. sliding rod frame; 909. mounting frame; 10. system panel. DETAILED DESCRIPTION

[0016] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0017] The cone-beam imaging device and imaging system for tumor radiotherapy disclosed by the utility model are mainly used in scenarios where CBCT and radiotherapy cannot be quickly coordinated, affecting the positioning effect, and the positioning is not accurate enough during scanning, resulting in low image quality.

[0018] Reference Figure 1-Figure 4, a cone beam imaging device and imaging system for tumor radiotherapy, including a ring frame 1, a base 2 is arranged on one side of the ring frame 1, and the same adjustment component 8 is arranged on the ring frame 1 and the base 2, the adjustment component 8 includes a plurality of hydraulic cylinders 809, the plurality of hydraulic cylinders 809 are fixedly connected to the top of the base 2, the tops of the plurality of hydraulic cylinders 809 are fixedly connected to the same movable platform 801, the top of the base 2 is fixedly connected to a soft shell 3, the top of the soft shell 3 is fixedly connected to the bottom of the movable platform 801, a stabilizing module 9 is arranged on the ring frame 1, and a mounting groove is opened on the ring frame 1 First, the stabilizing module 9 includes a movable ring 902, which is movably connected to the mounting groove 1. The ring frame 1 is provided with a mounting groove 2, and the mounting groove 2 is movably connected with a mounting ring 810. The mounting ring 810 is provided with a mounting hole 1 and two opposite mounting holes 2. The mounting hole 1 is provided with a radiotherapy head 4. The two opposite mounting holes 2 are respectively provided with a flat panel detector 5 and a tube 6. The movable table 801 is provided with a sliding groove 1, and the sliding groove 1 is slidably connected with a sliding frame 802. The sliding frame 802 is provided with a round hole 1 and two round holes 2. The round holes A threaded rod 804 is movably connected in one, and the outer wall of the threaded rod 804 is connected to the bed board 7 through a thread. The two round holes 803 are fixedly connected in both round holes. The bed board 7 slides on the outer walls of the two fixed rods 803. A round hole 3 is provided on the sliding frame 802. A motor 805 is fixedly connected in the round hole 3. The output end of the motor 805 is fixedly connected to one end of the threaded rod 804. Two sliding grooves 2 and two mounting grooves 3 are provided on the movable platform 801, and sliding rods 808 are slidably connected in both sliding grooves 2. The two sliding rods 808 are far away One end of the movable platform 801 is fixedly connected with a movable frame 806, and the two movable frames 806 are fixedly connected to the sliding frame 802. The two mounting grooves 3 are fixedly connected with hydraulic rods 807. The driving ends of the two hydraulic rods 807 are fixedly connected to the corresponding movable frames 806. A circular hole 4 is opened on the ring frame 1, and a motor 2 813 is fixedly connected in the circular hole 4. The output end of the motor 2 813 is fixedly connected with a gear 1 812. The outer wall of the mounting ring 810 is fixedly connected with a gear ring 1 811, and the gear 1 812 and the gear ring 1 811 are meshed with each other.

[0019] Reference Figure 1 , Figure 3 and Figure 4In a preferred embodiment, the outer wall of the movable ring 902 is fixedly connected to the gear ring 2 901, and one side of the ring frame 1 is fixedly connected to two symmetrical mounting frames 909, a mounting groove 4 is provided on a mounting frame 909 close to the gear ring 2 901, a motor 3 906 is fixedly connected in the mounting groove 4, a gear 2 905 is fixedly connected to the output end of the motor 3 906, and the gear 2 905 is meshed with the gear ring 2 901, and two arc grooves 903 are provided on the movable ring 902, and sliding rods 904 are slidably connected in the two arc grooves 903, sliding grooves 3 are provided on the two mounting frames 909, and sliding rod frames 908 are slidably connected in the two sliding grooves 3, and the two sliding rod frames 908 are fixedly connected to the corresponding sliding rods 904, and the opposite sides of the two sliding rod frames 908 are fixedly connected to clamping members 907.

[0020] An imaging system includes the cone-beam imaging device for tumor radiotherapy as described above, and also includes a system panel 10 .

[0021] Working principle: the patient lies flat on the bed board 7, the hydraulic cylinder 809 is started to adjust the height, and then the hydraulic rod 807 is started to push the movable frame 806, driving the sliding frame 802 and the sliding rod 808 to move, so that the patient enters the scanning area, and the motor 1 805 is started to rotate the threaded rod 804, driving the bed board 7 to slide on the fixed rod 803, and the position of the bed board 7 is adjusted horizontally for easy positioning, and the motor 2 813 is used to rotate the gear 1 812, meshing the rotating gear ring 1 811 and the mounting ring 810, and start the tube 6 and the flat panel detector 5 to draw the image. After the image is drawn, the motor 3 906 is started to rotate the gear 2 905, meshing the rotating gear ring 2 901 and the movable ring 902, forcing the sliding rod 904 to slide in the arc groove 903, driving the sliding rod frame 908 and the clamping member 907 to move toward the center, clamping the mounting ring 810 stably, and starting the radiotherapy head 4 to perform radiotherapy and ensure its stability.

[0022] The above is only a preferred specific implementation of the utility model, but the protection scope of the utility model is not limited to this. The replacement can be a replacement of part of the structure, device, method step, or a complete technical solution. Equivalent replacement or change based on the technical solution of the utility model and its utility model concept should be included in the protection scope of the utility model.

Claims

1. A cone-beam imaging device for tumor radiotherapy, comprising a ring frame (1), characterized in that: A base (2) is provided on one side of the ring frame (1), and the ring frame (1) and the base (2) are provided with a same adjustment component (8), the adjustment component (8) comprises a plurality of hydraulic cylinders (809), the plurality of hydraulic cylinders (809) are all fixedly connected to the top of the base (2), the tops of the plurality of hydraulic cylinders (809) are fixedly connected to a same movable platform (801), the top of the base (2) is fixedly connected to a soft shell (3), the top of the soft shell (3) is fixedly connected to the bottom of the movable platform (801), and the ring frame (1) A stabilizing module (9) is arranged on the ring frame (1), and a mounting groove 1 is provided on the ring frame (1). The stabilizing module (9) comprises a movable ring (902), and the movable ring (902) is movably connected to the mounting groove 1. The ring frame (1) is provided with a mounting groove 2, and a mounting ring (810) is movably connected to the mounting groove 2. The mounting ring (810) is provided with a mounting hole 1 and two opposite mounting holes 2. A radiotherapy head (4) is arranged in the mounting hole 1, and a flat panel detector (5) and a tube (6) are respectively arranged in the two opposite mounting holes 2.

2. The cone-beam imaging device for tumor radiotherapy according to claim 1, characterized in that: The movable platform (801) is provided with a sliding groove 1, and a sliding frame (802) is slidably connected in the sliding groove 1, the sliding frame (802) is provided with a circular hole 1 and two circular holes 2, a threaded rod (804) is movably connected in the circular hole 1, the outer wall of the threaded rod (804) is connected to a bed board (7) through a thread, the two circular holes 2 are fixedly connected to fixed rods (803), the bed board (7) slides on the outer walls of the two fixed rods (803), the sliding frame (802) is provided with a circular hole 3, a motor 1 (805) is fixedly connected in the circular hole 3, and the output end of the motor 1 (805) is fixedly connected to one end of the threaded rod (804).

3. The cone-beam imaging device for tumor radiotherapy according to claim 2, characterized in that: The movable platform (801) is provided with two sliding grooves 2 and two mounting grooves 3, and the two sliding grooves 2 are slidably connected to sliding rods (808), the ends of the two sliding rods (808) away from the movable platform (801) are fixedly connected to movable frames (806), the two movable frames (806) are fixedly connected to the sliding frame (802), the two mounting grooves 3 are fixedly connected to hydraulic rods (807), and the driving ends of the two hydraulic rods (807) are fixedly connected to the corresponding movable frames (806).

4. The cone-beam imaging device for tumor radiotherapy according to claim 1, characterized in that: The ring frame (1) is provided with a circular hole four, and a motor two (813) is fixedly connected in the circular hole four, a gear one (812) is fixedly connected to the output end of the motor two (813), a gear ring one (811) is fixedly connected to the outer wall of the mounting ring (810), and the gear one (812) and the gear ring one (811) are meshed with each other.

5. The cone-beam imaging device for tumor radiotherapy according to claim 1, characterized in that: The outer wall of the movable ring (902) is fixedly connected to a second gear ring (901), and one side of the ring frame (1) is fixedly connected to two mutually symmetrical mounting frames (909), a mounting groove (909) close to the second gear ring (901) is provided with a fourth mounting groove, a third motor (906) is fixedly connected in the fourth mounting groove, and a second gear (905) is fixedly connected to the output end of the third motor (906), and the second gear (905) and the second gear ring (901) are meshed with each other.

6. The cone-beam imaging device for tumor radiotherapy according to claim 5, characterized in that: The movable ring (902) is provided with two arc grooves (903), and the two arc grooves (903) are both slidably connected with sliding rods (904). The two mounting frames (909) are both provided with sliding grooves three, and the two sliding grooves three are both slidably connected with sliding rod frames (908). The two sliding rod frames (908) are both fixedly connected to the corresponding sliding rods (904), and the opposite sides of the two sliding rod frames (908) are both fixedly connected with clamping members (907).

7. An imaging system, comprising the cone-beam imaging device for tumor radiotherapy according to any one of claims 1 to 6, characterized in that: Also included is a system panel (10).

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