Light limiting cylinder QA module

Abstract

The invention belongs to the technical field of radiotherapy equipment, and discloses a light limiting cylinder QA module and a QA module using method. The light limiting barrel QA module comprises a barrel body and a cylindrical barrel with an angle at the tail end, and is used for radiotherapy. And the test module is connected with the cylinder body and is internally provided with a test dose piece. The light limiting cylinder QA module test method provided by the invention is simple to operate and high in test precision, and can quickly obtain the dose distribution of the light limiting cylinder.

Description

Technical Field

[0001] The invention provides a light-limiting tube QA module and a method for using the QA module, belonging to the technical field of radiotherapy equipment. Background Art

[0002] During the radiotherapy of tumors, in order to confirm the energy and shape of the radiation beams such as electron beams, X-rays, and particle beams used in the treatment, it is necessary to measure the dose distribution before irradiating the beams to the patient. The traditional three-dimensional water tank needs to be scanned with an ionization chamber probe, which takes a long time to test. Radiation-sensitive film is a convenient tool for dose measurement and radiotherapy plan verification, with excellent spatial resolution, easy operation, and short testing time. Summary of the invention

[0003] The present invention provides a light limiting tube QA module and a method for using the QA module, so as to solve the deficiencies in the prior art.

[0004] In order to achieve the above objectives, in a first aspect, the present invention provides a light-limiting tube QA module, comprising: Cylinders, tubes with angled ends, used for radiation therapy; The test module is connected to the cylinder and has a test dosage sheet inside.

[0005] In an embodiment of the present invention, the test dose sheet is a dose sensitive film used for dose measurement.

[0006] In an embodiment of the present invention, the angle of the end of the cylinder is 0°, 10°, 15°, 20°, 25°, 30°, 35°, 40°, or 45°.

[0007] In an embodiment of the present invention, the upper end of the cylinder is provided with an annular groove for fixing the cylinder.

[0008] In an embodiment of the present invention, a buckle is provided on the test module, which is docked with a fixed slot on the cylinder body to fix the cylinder body and the test module.

[0009] In an embodiment of the present invention, the end of the fixing slot has an angle to ensure that the test module is installed only at a correct angle.

[0010] In an embodiment of the present invention, the test module is provided with a slot, the test dosage sheet is placed in the slot, and the slot is arranged along the major axis or minor axis direction through the center of the elliptical cross section at the end of the barrel.

[0011] In an embodiment of the present invention, the test module is a water equivalent material.

[0012] In an embodiment of the present invention, the cross section of the cylinder is circular, elliptical or rectangular.

[0013] In a second aspect, the present invention provides a method for using a QA module, the method comprising: S1. Provide the light limiting tube QA module; S2. Use the light-limiting tube QA module to replace the general light-limiting tube to connect with the radiotherapy equipment; S3, placing the test dose sheet in the card slot of the test module, and operating the radiotherapy equipment to emit beams; S4. Use the analysis equipment to obtain the dose distribution of the test dose sheet.

[0014] Through the above technical solution, a light-limiting tube QA module provided by an embodiment of the present invention has the following beneficial effects: When it is necessary to measure the dose distribution of radiotherapy equipment, the QA module is used instead of the traditional three-dimensional water tank. The dose distribution can be quickly obtained by analyzing the grayscale of the test dose film. The operation is convenient and the test time is short.

[0015] Other features and advantages of the present invention will be described in detail in the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a structural schematic diagram of a light-limiting tube QA module according to an embodiment of the present invention; Figure 2 is a structural schematic diagram of a light-limiting tube QA module according to an embodiment of the present invention; Figure 3 is a flow chart of a method for using a QA module according to an embodiment of the present invention.

[0017] The reference numerals in the specification are as follows: Label name Label name 1 Cylinder 21 Test dose tablets 2 Test Module 22 Buckle 11 Annular groove 23 Card slot 12 Fixed card slot DETAILED DESCRIPTION

[0018] The specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0019] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments may be combined with each other.

[0020] In the embodiments of the present invention, unless otherwise specified, directional words such as "up, down, top, bottom" are usually used to describe the relative positional relationship of components with respect to the directions shown in the drawings or in the vertical, perpendicular or gravity directions.

[0021] The present invention will be described in detail below in conjunction with exemplary embodiments with reference to the accompanying drawings.

[0022] The present invention provides a light-limiting tube QA module, comprising: Cylinder 1, a tube with an angled end, used for radiation therapy; The test module 2 is connected to the cylinder 1 and has a test dosage sheet 21 inside.

[0023] In the embodiment of the present invention, the test dose sheet 21 is a dose sensitive film used for dose measurement.

[0024] In an embodiment of the present invention, the angle of the end of the cylinder 1 is 0°, 10°, 15°, 20°, 25°, 30°, 35°, 40°, or 45°.

[0025] In the embodiment of the present invention, the upper end of the cylinder 1 is provided with an annular groove 11 for fixing the cylinder 1 .

[0026] In the embodiment of the present invention, the test module 2 is provided with a buckle 22 which docks with the fixing slot 12 on the cylinder 1 to fix the cylinder 1 and the test module 2 .

[0027] In the embodiment of the present invention, the end of the fixing slot 12 has an angle to ensure that the test module 2 is installed only at a correct angle.

[0028] In the embodiment of the present invention, the test module 2 is provided with a slot 23, the test dosage sheet 21 is placed in the slot 23, and the slot 23 is arranged along the major axis or minor axis direction through the center of the elliptical cross section at the end of the barrel.

[0029] In an embodiment of the present invention, the test module 2 is made of water equivalent material.

[0030] In an embodiment of the present invention, the cross-section of the cylinder 1 is circular, elliptical or rectangular.

[0031] In an embodiment of the present invention, a method for using a QA module is provided, comprising: S1. Provide the light limiting tube QA module; S2. Use the light-limiting tube QA module to replace the general light-limiting tube to connect with the radiotherapy equipment; S3, placing the test dose sheet (21) in the card slot (23) of the test module (2), and operating the radiotherapy device to emit a beam; S4. Use an analysis device to obtain the dose distribution of the test dose sheet (21).

[0032] In the description of the present invention, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0033] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0034] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

Claims

1. A light-limiting tube QA module, characterized in that: include: The barrel (1), a barrel with an angled end, is used for radiation therapy; The test module (2) is connected to the barrel (1) and is provided with a test dosage sheet (21) inside.

2. The light-limiting tube QA module according to claim 1, characterized in that: The test dose sheet (21) is a dose-sensitive film used for dose measurement.

3. The light-limiting tube QA module according to claim 1, characterized in that: The angle of the end of the cylinder (1) is 0°, 10°, 15°, 20°, 25°, 30°, 35°, 40°, or 45°.

4. The light-limiting tube QA module according to claim 1, characterized in that: The upper end of the cylinder (1) is provided with an annular groove (11) for fixing the cylinder (1).

5. The light-limiting tube QA module according to claim 1, characterized in that: The test module (2) is provided with a buckle (22) which docks with a fixed slot (12) on the cylinder (1) and is used to fix the cylinder (1) and the test module (2).

6. The light-limiting tube QA module according to claim 1, characterized in that: The end of the fixing slot (12) is angled to ensure that the test module (2) is only installed at a correct angle.

7. The light-limiting tube QA module according to claim 1, characterized in that: The test module (2) is provided with a slot (23), the test dosage sheet (21) is placed in the slot (23), and the slot (23) is arranged along the major axis or minor axis direction through the center of the elliptical cross section at the end of the barrel.

8. The light-limiting tube QA module according to claim 1, characterized in that: The test module (2) is made of water-equivalent material.

9. The light-limiting tube QA module according to claim 1, characterized in that: The cross section of the cylinder (1) is circular, elliptical or rectangular.

10. A method for using a QA module, characterized in that: The light limiting tube QA module according to claims 1-9, the method of using comprises: S1. Provide the light limiting tube QA module; S2. Use the light-limiting tube QA module to replace the general light-limiting tube to connect with the radiotherapy equipment; S3, placing the test dose sheet (21) in the card slot (23) of the test module (2), and operating the radiotherapy device to emit a beam; S4. Use an analysis device to obtain the dose distribution of the test dose sheet (21).

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