CN214807946U

CN214807946U - Novel variable-caliber ray collimator based on linear accelerator

Info

Publication number: CN214807946U
Application number: CN202023291758.5U
Authority: CN
Inventors: 陈蔚海
Original assignee: Taicong Information Technology Shanghai Co ltd
Current assignee: Taicong Information Technology Shanghai Co ltd
Priority date: 2020-12-31
Filing date: 2020-12-31
Publication date: 2021-11-23
Anticipated expiration: 2030-12-31

Abstract

The utility model discloses a novel variable bore's ray collimator based on linear accelerator, including bottom plate and an upper fixed plate, install rotary disk and driving motor between bottom plate and the upper fixed plate, the drive wheel is connected to driving motor's output to be fixed in on the bottom plate through the bearing, the rotary disk is connected in the drive wheel meshing, it has the mounting hole to open on the rotary disk, the inside round hole collimater that is fixed with of mounting hole, center pin bearing connection top fixed plate and bottom plate are passed through at the both ends of rotary disk, it has the alignment hole to open on the upper fixed plate, the centre of a circle of aiming at the hole can align with the centre of a circle of the round hole collimater on the rotary disk. The rotary disc of the device is provided with the round hole collimators with different calibers, and the aperture size of each round hole collimator can be changed according to the actual requirements of users, so that the clinical treatment requirements of tumors with different sizes are met.

Description

Novel variable-caliber ray collimator based on linear accelerator

Technical Field

The utility model relates to a radiation therapy equipment technical field, concretely relates to novel variable bore's ray collimator based on linear accelerator.

Background

Radiation therapy is an important one of the tumor treatment therapies. In the clinical application of radiotherapy, a linear accelerator is one of the most widely used devices. The linear accelerator is used for tumor therapy by using high-energy X rays generated by high-speed targeting after electron beam acceleration. In clinical applications for small-volume tumors, a circular collimator with a fixed aperture is usually mounted at the handpiece of the linear accelerator for irradiation.

In clinical practice, the method has the following disadvantages: 1, the bore of each round hole collimator is fixed, if the collimators with different bores need to be replaced in the treatment process, the treatment needs to be interrupted, and then the working personnel enter a treatment machine room for manual replacement. The operation process is complicated, and the working efficiency is low. 2. At present, circular hole collimators matched with a linear accelerator are manually operated, and the precision cannot be guaranteed in the replacement process.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a novel variable bore's ray collimator based on linear accelerator to solve the problem of mentioning in the background art. In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a novel variable-bore ray collimator based on linear accelerator, includes bottom plate and an upper fixed plate, install rotary disk and driving motor between bottom plate and the upper fixed plate, the drive wheel is connected to driving motor's output to be fixed in on the bottom plate through the bearing, the rotary disk is connected in the drive wheel meshing, it has the mounting hole to open on the rotary disk, the inside round hole collimater that is fixed with of mounting hole, center pin bearing connection top plate and bottom plate are passed through at the both ends of rotary disk, it has the alignment hole to open on the upper fixed plate, the centre of a circle of aiming at the hole can be alignd with the centre of a circle of the round hole collimater on the rotary disk.

Preferably, the mounting holes are provided with a plurality of holes and are uniformly distributed along the circumference of the rotating disk, and the diameters of the round hole collimators in the mounting holes are different.

Preferably, a supporting disc is arranged on one side of the rotating disc, and the supporting disc is connected with the rotating disc through a central shaft and is reinforced through a supporting rod.

Preferably, the driving motor is a servo motor, and the driving motor is connected with the upper fixing plate through a screw.

Preferably, the two sides of the lower fixing plate are provided with supporting plates, and the supporting plates are connected with the upper fixing plate through screws.

The utility model discloses a technological effect and advantage: the rotary disc of the device is provided with the round hole collimators with different calibers, and the aperture size of each round hole collimator can be changed according to the actual requirements of users, so that the clinical treatment requirements of tumors with different sizes are met; the rotating disc can automatically align the circular hole collimator on the rotating disc with the field of the accelerator under the driving of the servo motor, the collimator does not need to be manually replaced in the whole process, and the in-place precision is high.

Drawings

Fig. 1 is a schematic view of the inner side structure of the present invention;

fig. 2 is a left side view of the inner side structure diagram of the present invention;

fig. 3 is a schematic view of the installation of the upper fixing plate of the present invention.

In the figure: 1-lower fixed plate, 2-upper fixed plate, 4-driving motor, 5-driving wheel, 6-rotating disk, 7-mounting hole, 8-round hole collimator, 9-alignment hole, 10-supporting disk, 11-central shaft, 12-supporting rod and 13-supporting plate.

Detailed Description

In order to make the technical means, the creative features, the objectives and the functions of the present invention easily understood and appreciated, the present invention will be further described with reference to the specific drawings, and in the description of the present invention, unless otherwise specified or limited, the terms "mounted," connected "and" connected "should be understood broadly, and for example, the terms" fixed connection, "detachable connection," integral connection, mechanical connection, and electrical connection may be used; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements.

Example 1

As shown in fig. 1-3, a novel variable-caliber ray collimator based on a linear accelerator comprises a lower fixing plate 1 and an upper fixing plate 2, a rotary disk 6 and a driving motor 4 are installed between the lower fixing plate 1 and the upper fixing plate 2, the output end of the driving motor 4 is connected with a driving wheel 5 and fixed on the lower fixing plate 1 through a bearing, the driving wheel 5 is meshed with and connected with the rotary disk 6, a mounting hole 7 is formed in the rotary disk 6, a round hole collimator 8 is fixed inside the mounting hole 7, two ends of the rotary disk 6 are connected with the upper fixing plate 2 and the lower fixing plate 1 through a center shaft bearing, an alignment hole 9 is formed in the upper fixing plate 2, and the circle center of the alignment hole 9 can be aligned with the circle center of the round hole collimator 8 on the rotary disk 6.

Example 2

Preferably, the mounting holes 7 are provided in plurality and uniformly distributed along the circumference of the rotating disk 6, and the diameters of the circular hole collimators 8 in the mounting holes 7 are different.

Preferably, a supporting plate 10 is arranged on one side of the rotating plate 6, and the supporting plate 10 is connected with the rotating plate 6 through a central shaft 11 and is reinforced through a supporting rod 12.

Preferably, the driving motor 4 is a servo motor, and the driving motor 4 is connected with the upper fixing plate 2 through a screw.

Preferably, support plates 13 are arranged on two sides of the lower fixing plate 1, and the support plates 13 are screwed with the upper fixing plate 2.

The utility model discloses process flow and theory of operation do: confirm the aperture of round hole collimater 8 according to user's actual demand, with this device mount in accelerator aircraft nose top, driving motor 4 drives rotary disk 6 through drive wheel 5, changes the round hole collimater 8 of suitable aperture to the position of aligning with aiming at hole 9, the ray alright of accelerator shine the treatment through round hole collimater 8.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.

Claims

1. The utility model provides a novel variable bore's ray collimator based on linear accelerator, includes bottom plate and an upper fixed plate, its characterized in that: the rotary disc and the driving motor are installed between the lower fixing plate and the upper fixing plate, the output end of the driving motor is connected with the driving wheel and fixed on the lower fixing plate through a bearing, the driving wheel is meshed with the rotary disc, a mounting hole is formed in the rotary disc, a round hole collimator is fixed inside the mounting hole, two ends of the rotary disc are connected with the upper fixing plate and the lower fixing plate through a center shaft bearing, an alignment hole is formed in the upper fixing plate, and the circle center of the alignment hole can be aligned with the circle center of the round hole collimator on the rotary disc.

2. The novel variable-caliber ray collimator based on the linear accelerator as claimed in claim 1, is characterized in that: the mounting holes are arranged in a plurality of numbers and are uniformly distributed along the circumference of the rotating disk, and the diameters of the round hole collimators in the mounting holes are different.

3. The novel variable-caliber ray collimator based on the linear accelerator as claimed in claim 1, is characterized in that: and a supporting disk is arranged on one side of the rotating disk, is connected with the rotating disk through a central shaft and is reinforced through a supporting rod.

4. The novel variable-caliber ray collimator based on the linear accelerator as claimed in claim 1, is characterized in that: the driving motor is a servo motor and is connected with the upper fixing plate through a screw.

5. The novel variable-caliber ray collimator based on the linear accelerator as claimed in claim 1, is characterized in that: and supporting plates are arranged on two sides of the lower fixing plate, and the supporting plates are connected with the upper fixing plate through screws.