CN212471376U

CN212471376U - Multi-blade grating maintenance auxiliary device for medical accelerator

Info

Publication number: CN212471376U
Application number: CN202020908797.6U
Authority: CN
Inventors: 刘赛梅
Original assignee: Guizhou Xinlikang Medical Technology Co ltd
Current assignee: Guizhou Xinlikang Medical Technology Co ltd
Priority date: 2020-05-26
Filing date: 2020-05-26
Publication date: 2021-02-05
Anticipated expiration: 2030-05-26

Abstract

The utility model discloses a leafy grating maintenance auxiliary device of medical accelerator, comprises a workbench, it is connected with the pivot to rotate on the workstation, the symmetry is equipped with the carriage release lever in the workstation, carriage release lever sliding connection is in the pivot, fixed symmetrical connection has the dead lever between two carriage release levers, the symmetry is equipped with the bolt on the dead lever, symmetrical sliding connection has the backup pad on the workstation, the backup pad is close to fixedly connected with spring between workstation lateral wall and the workstation inner wall, workstation bottom symmetry fixedly connected with supporting leg. The utility model discloses place many leaf gratings and fix between the dead lever, twist afterwards and move the cap soon and make the threaded rod break away from the second slot to the pulling inserted bar makes the inserted bar break away from first slot, rotates the handle afterwards, makes the carriage release lever upward movement, backup pad inward movement afterwards, makes carriage release lever bottom and backup pad upper surface laminating, inserts the restriction of accomplishing the countershaft in the first slot with the inserted bar afterwards.

Description

Multi-blade grating maintenance auxiliary device for medical accelerator

Technical Field

The utility model relates to the technical field of medical instrument maintenance, especially, relate to a multi-blade grating maintenance auxiliary device of medical accelerator.

Background

Currently, medical linear accelerators manufactured by the company warian (Varian) in the united states are widely applied to countries all over the world, and provide tumor radiotherapy (radiotherapy) services for hundreds of thousands of cancer patients every day. The multi-version accelerators (23EX type, IX type, Trilogy type, TrueBeam type, etc.) manufactured by the company adopt MLC-120 type multi-leaf gratings. This type of grating is composed of a carriage a composed of 60 grating blades on the a-plane and a carriage B composed of 60 gratings on the B-plane. Under the control of microcomputer, these gratings utilize 120 independent electric motors to independently drive A, B grating blades to move so as to form irregular radiation field and achieve the purpose of conformal treatment or intensity modulated treatment of tumor. The device has the characteristics of compact structure, accurate and flexible motion control and the like.

The accelerator system is composed of a plurality of subsystems, wherein the multi-leaf raster system is the system with the highest component motion rate and is therefore the subsystem with the most fault-prone characteristic of the accelerator. The existing maintenance auxiliary device needs to artificially lift the multi-leaf grating to a maintenance workbench, and needs a worker to help the multi-leaf grating to keep the multi-leaf grating upright, and the maintenance is finished by another person.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defect that the multi-blade grating needs to be manually lifted and assisted in the prior art, thereby providing a multi-blade grating maintenance auxiliary device of a medical accelerator.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a maintenance auxiliary device of multi-leaf grating of medical accelerator, includes the workstation, it is connected with the pivot to rotate on the workstation, the symmetry is equipped with the carriage release lever in the workstation, carriage release lever sliding connection is in the pivot, fixed symmetrical connection has the dead lever between two carriage release levers, the symmetry is equipped with the bolt on the dead lever, symmetrical sliding connection has the backup pad on the workstation, the backup pad is close to fixedly connected with spring between workstation lateral wall and the workstation inner wall, workstation bottom symmetry fixedly connected with supporting leg.

Preferably, a tooth groove is formed in the moving rod, gears are symmetrically and fixedly connected to the rotating shaft, and the gears are matched with the tooth groove.

Preferably, the workstation is last to rotate and to be connected with the connecting rod, sliding connection has the inserted bar on the connecting rod, the symmetry is equipped with first slot in the pivot, inserted bar and first slot phase-match.

Preferably, fixedly connected with baffle on the supporting leg, threaded connection has the threaded rod on the baffle, fixedly connected with revolves the cap on the threaded rod, be equipped with the second slot in the backup pad, threaded rod and second slot phase-match.

Preferably, one end of the rotating shaft, far away from the workbench, is fixedly connected with a handle, and anti-skid grains are arranged on the handle.

Compared with the prior art, the beneficial effects of the utility model are that:

1. when the device is used, the multi-leaf grating is placed between the fixed rods, the multi-leaf grating is fixed through the mutual matching between the reserved holes and the bolts, then the screw cap is screwed to enable the threaded rod to rotate and move downwards to be separated from the second slot, the inserted rod is pulled to rotate the connecting rod to enable the inserted rod to be separated from the first slot, then the handle is rotated to enable the rotating shaft to rotate and drive the gear to rotate, the movable rod moves upwards, after the movable rod moves to a certain state, the support plate moves towards the inner side of the workbench under the action of the spring to enable the bottom end of the movable rod to be attached to the upper surface of the support plate, then the inserted rod is inserted into the first slot to complete the limitation of the rotating shaft, the multi-leaf grating does not need to be manually lifted to a maintenance workbench by workers, the labor load of the workers is reduced, the potential safety hazard caused by the manual lifting of the multi-leaf grating is avoided, and, the working efficiency is improved, and the potential safety hazard caused by the assistance of workers is solved.

2. After the maintenance is accomplished, remove the backup pad to both sides to twist and move the cap soon and make the threaded rod get into the second slot in carry on spacingly to the backup pad, pulling the inserted bar afterwards, rotate the connecting rod, make the inserted bar break away from first slot, then rotate the handle, make the carriage release lever downstream, remove multi-leaf grating after moving to certain state, convenient operation has improved work efficiency.

Drawings

Fig. 1 is a schematic front structural view of a multi-leaf grating maintenance auxiliary device for a medical accelerator according to the present invention;

FIG. 2 is a schematic view of a partial structure of a maintenance assisting device for a multi-leaf collimator of a medical accelerator;

fig. 3 is a top view of a multi-leaf grating repair aid for a medical accelerator.

In the figure: 1. a work table; 2. a rotating shaft; 3. a handle; 4. a travel bar; 5. a gear; 6. fixing the rod; 7. a bolt; 8. a support plate; 9. a spring; 10. a baffle plate; 11. a threaded rod; 12. supporting legs; 13. a connecting rod; 14. and (4) inserting the rod.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Referring to fig. 1-3, a maintenance auxiliary device for multi-blade grating of a medical accelerator comprises a workbench 1, a rotating shaft 2 is rotatably connected to the workbench 1, a handle 3 is fixedly connected to one end of the rotating shaft 2, which is far away from the workbench 1, anti-skid lines are arranged on the handle 3, a user can rotate the rotating shaft 2 through the handle 3 conveniently, moving rods 4 are symmetrically arranged in the workbench 1, the moving rods 4 are slidably connected to the rotating shaft 2, tooth grooves are arranged in the moving rods 4, gears 5 are symmetrically and fixedly connected to the rotating shaft 2, the gears 5 are matched with the tooth grooves, so that the rotation of the rotating shaft 2 can drive the gears 5 to rotate together, the moving rods 4 move upwards, the tooth grooves are arranged in the moving rods 4, the gears 5 are symmetrically and fixedly connected to the rotating shaft 2, the gears 5 are matched with the tooth grooves, so that the rotation of the rotating shaft 2, fixed symmetrical connection has dead lever 6 between two carriage release levers 4, the symmetry is equipped with bolt 7 on the dead lever 6, symmetrical sliding connection has backup pad 8 on the workstation 1, backup pad 8 is close to fixedly connected with spring 9 between 1 lateral wall of workstation and the 1 inner wall of workstation, make backup pad 8 can be to 1 inboard motion of workstation under the effort of

spring

9, 1 bottom symmetrical fixedly connected with supporting leg 12 of workstation, the stability that has added the device has been increased, fixedly connected with baffle 10 on the supporting leg 12, threaded connection has threaded rod 11 on the baffle 10, fixedly connected with revolves the cap on the threaded rod 11, be equipped with the second slot on the backup pad 8, threaded rod 11 and second slot phase-match, make threaded rod 11 can restrict backup pad 8's motion.

In the utility model, when the user uses the device, the multi-leaf grating is placed between the fixed rods 6 and fixed by the mutual matching between the reserved holes and the bolts 7, then the screw cap is screwed to rotate the threaded rod 11 to rotate and move downwards to separate from the second slot, the inserted rod 14 is pulled, the connecting rod 13 is rotated to separate the inserted rod 14 from the first slot, then the handle 3 is rotated to rotate the rotating shaft 2 to drive the gear 5 to rotate, so that the movable rod 4 moves upwards, after the movable rod is moved to a certain state, the support plate 8 moves towards the inner side of the workbench 1 under the action force of the spring 9, so that the bottom end of the movable rod 4 is attached to the upper surface of the support plate 8, then the inserted rod 14 is inserted into the first slot to complete the limitation of the rotating shaft 2, after the maintenance is completed, the support plate 8 is moved towards two sides, and the screw cap is screwed to make the threaded rod 11 enter the second slot to limit the support plate 8, then pulling the plunger 14, rotating the connecting rod 13 to make the plunger 14 disengage from the first slot, and then rotating the handle 3 to make the moving rod 4 move downwards, and removing the multi-leaf collimator after moving to a certain state.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a maintenance auxiliary device of multi-leaf grating of medical accelerator, includes workstation (1), its characterized in that, it is connected with pivot (2) to rotate on workstation (1), workstation (1) internal symmetry is equipped with carriage release lever (4), carriage release lever (4) sliding connection is on pivot (2), fixedly symmetrical between two carriage release levers (4) is connected with dead lever (6), the symmetry is equipped with bolt (7) on dead lever (6), symmetrical sliding connection has backup pad (8) on workstation (1), backup pad (8) are close to fixedly connected with spring (9) between workstation (1) lateral wall and workstation (1) inner wall, workstation (1) bottom symmetry fixedly connected with supporting leg (12).

2. The multi-blade grating maintenance auxiliary device of the medical accelerator according to claim 1, wherein a tooth socket is arranged in the moving rod (4), the rotating shaft (2) is symmetrically and fixedly connected with a gear (5), and the gear (5) is matched with the tooth socket.

3. The multi-blade grating maintenance auxiliary device of the medical accelerator according to claim 1, wherein a connecting rod (13) is rotatably connected to the workbench (1), an inserting rod (14) is slidably connected to the connecting rod (13), the rotating shaft (2) is symmetrically provided with first slots, and the inserting rod (14) is matched with the first slots.

4. The multi-blade grating maintenance auxiliary device of the medical accelerator according to claim 1, wherein a baffle (10) is fixedly connected to the supporting leg (12), a threaded rod (11) is connected to the baffle (10) in a threaded manner, a screw cap is fixedly connected to the threaded rod (11), a second slot is formed in the supporting plate (8), and the threaded rod (11) is matched with the second slot.

5. The multi-blade grating maintenance auxiliary device of the medical accelerator according to claim 1, wherein a handle (3) is fixedly connected to one end of the rotating shaft (2) far away from the workbench (1), and anti-skid lines are arranged on the handle (3).