Whole body irradiation accelerator
By designing a full-body irradiation accelerator, allowing patients to lie down and receive radiation treatment, and longitudinal movement of the irradiation beam or treatment bed is achieved through the motion control device, the problems of instability and uneven absorption in the standing and sitting postures are solved. Improves the uniformity and effect of irradiation.
Patent Information
- Application Number
- CN202310798663.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2023-06-30
- Publication Date
- 2025-01-07
AI Technical Summary
During the whole body radiation, it is difficult for patients in standing and sitting positions to maintain their positions, resulting in uneven ray absorption, especially for patients with weakened conditions to persist in the entire course of treatment.
Design a full-body radiation accelerator to allow patients to receive radiation therapy while lying down. Through beam generation devices and motion control devices, the longitudinal movement of the radiation beam or treatment bed is controlled to ensure that patients can receive radiation evenly while lying down. According to.
The patient's position is easy to maintain and the irradiation effect is even, which improves the sustainability and effectiveness of treatment.
Smart Images
Figure CN119258411A_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of medical devices, and in particular to a whole-body irradiation accelerator. Background Art
[0002] Whole body irradiation, also known as total body irradiation (TBI), refers to radiation therapy of the human body. It is the main treatment method before hematopoietic stem cell transplantation or bone marrow transplantation.
[0003] In the related art, when whole-body irradiation is performed, patients are usually irradiated in a standing or sitting position. The standing position makes it difficult for some weak patients to complete the entire treatment course, and it is also difficult for the patient to maintain the body position; the sitting position is not easy to fix, and the shaking of the patient's body makes the radiation absorption dose uneven. It is urgent to propose a new technology to solve the problems existing in the above related technologies. Summary of the invention
[0004] The embodiment of the present application provides a whole-body irradiation accelerator. During irradiation, the patient can receive irradiation treatment in a lying position, the body position is easy to maintain, and the irradiation effect is excellent.
[0005] The present application provides a whole-body irradiation accelerator, comprising: a beam generating device, used to generate a radiation beam; a treatment couch, located below the beam generating device, used to carry a lying patient; and a motion control device, used to control the longitudinal movement of the radiation beam or the treatment couch along the lying patient during irradiation, so as to achieve whole-body irradiation of the lying patient.
[0006] In some embodiments of the present application, the motion control device includes a beam deflection device for deflecting the movement direction of the radiation beam; during irradiation, the treatment bed remains stationary, and the beam deflection device controls the longitudinal deflection movement of the radiation beam along the lying patient to achieve whole-body irradiation of the lying patient.
[0007] In some embodiments of the present application, the beam deflection device includes a deflection pivot, which is connected to the beam generating device and is used to drive the beam generating device to pivot to control the movement direction of the radiation beam so that the radiation beam moves in a longitudinal direction of the recumbent patient to achieve whole-body irradiation of the recumbent patient.
[0008] In some embodiments of the present application, the beam deflection device includes a deflection magnet, which is located below the beam generating device and is used to control the movement direction of the radiation beam so that the radiation beam moves in a longitudinal direction of the recumbent patient to achieve whole-body irradiation of the recumbent patient.
[0009] In some embodiments of the present application, it further includes a linear guide mechanism arranged along the longitudinal direction of the lying patient, and the beam generating device is configured to move along the linear guide mechanism;
[0010] During irradiation, the treatment couch remains stationary, and the motion control device controls the beam generating device to move along the linear guide mechanism, so that the radiation beam moves along the longitudinal direction of the lying patient to achieve whole-body irradiation of the lying patient.
[0011] In some embodiments of the present application, the method further includes: the linear guide mechanism includes a linear guide rail and a lead screw.
[0012] In some embodiments of the present application, during irradiation, the radiation beam remains stationary, and the motion control device controls the treatment couch to move longitudinally along the lying patient to achieve whole-body irradiation of the lying patient.
[0013] In some embodiments of the present application, the treatment couch has an upper bed position and an irradiation position, and the treatment couch can switch between the upper bed position and the irradiation position.
[0014] In some embodiments of the present application, the treatment couch is capable of moving in a horizontal direction to achieve switching movement between the upper bed position and the irradiation position.
[0015] In some embodiments of the present application, the treatment couch is capable of rotating to achieve switching movement between the upper bed position and the irradiation position.
[0016] The whole body irradiation accelerator provided in the embodiment of the present application includes: a beam generating device for generating a radiation beam; a treatment bed, located below the beam generating device, for carrying a lying patient; and a motion control device, for controlling the longitudinal movement of the radiation beam or the treatment bed along the lying patient during irradiation to achieve whole body irradiation of the lying patient. During irradiation, the patient receives radiation treatment in a lying position, and the body position is easy to maintain, and the treatment bed is located below the beam generating device, so that the patient absorbs the radiation beam evenly and the irradiation effect is excellent. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.
[0018] Figure 1 is a schematic diagram of a whole-body irradiation accelerator provided in an embodiment of the present application;
[0019] Figure 2 is a schematic diagram of another whole body irradiation accelerator provided in an embodiment of the present application;
[0020] Figure 3 is a schematic diagram of another whole body irradiation accelerator provided in an embodiment of the present application;
[0021] Figure 4 It is a schematic diagram of another whole-body irradiation accelerator provided in the embodiments of the present application. DETAILED DESCRIPTION
[0022] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of this application.
[0023] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, which are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second", and "third" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first", "second", and "third" may explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.
[0024] In this application, the term "in some embodiments" is used to mean "used as an example, illustration, or illustration". Any embodiment described in this application as "in some embodiments" is not necessarily to be construed as being preferred or advantageous over other embodiments. Therefore, this application is not intended to be limited to the embodiments shown, but is consistent with the widest scope consistent with the principles and features disclosed in this application.
[0025] In the related art, when whole-body irradiation is performed, patients are usually irradiated in a standing or sitting position. The standing position makes it difficult for some weak patients to complete the entire course of treatment, and it is also difficult for the patient to maintain a fixed position; the sitting position is difficult to fix, and the shaking of the patient's body makes the radiation absorption dose uneven.
[0026] The present application embodiment provides a whole body irradiation accelerator, such as Figure 1 As shown, the whole body irradiation accelerator 100 includes: a beam generating device 101, a treatment bed 102 and a motion control device 103. Among them:
[0027] The beam generating device 101 is used to generate a radiation beam 104 , and the radiation beam 104 is used to perform radiation therapy on the patient P.
[0028] The treatment couch 102 is located below the beam generating device 101 and is used to carry a lying patient P. During radiation therapy, the patient P lies on the treatment couch 102 to receive radiation.
[0029] The motion control device 103 is used to control the movement of the radiation beam 104 or the treatment bed 102. During the irradiation period, the motion control device 103 controls the radiation beam 104 or the treatment bed 102 to move along the longitudinal direction (Y direction) of the lying patient P, thereby achieving whole body irradiation treatment for the lying patient P.
[0030] The whole body irradiation accelerator provided in the embodiment of the present application allows the patient to receive irradiation treatment in a lying position during irradiation, so the body position is easy to maintain, and the treatment bed is located below the beam generating device, so that the patient absorbs the radiation beam evenly and the irradiation effect is excellent.
[0031] In the embodiment of the present application, the beam generating device 101 is a device that can generate any beam for radiation therapy, and the type of radiation beam is not limited, for example: it can be an X-beam, a gamma beam, an electron beam, a proton beam, a heavy ion beam, etc.
[0032] In order to enable the patient to receive whole body irradiation therapy while lying down, in some embodiments, the radiation beam is kept stationary during irradiation, that is, the position of the irradiation field remains unchanged, and the motion control device controls the longitudinal movement of the treatment bed along the lying patient.
[0033] like Figure 1 As shown, the treatment couch 102 can move along the Y direction. During irradiation, the treatment couch 102 is moved along the Y direction under the control of the motion control device 103. At this time, the radiation beam 104 remains stationary. Through the movement of the treatment couch 102, whole-body irradiation of the lying patient P is achieved.
[0034] In some embodiments, during irradiation, the treatment couch is kept stationary, that is, the position of the treatment couch remains unchanged, and the motion control device controls the longitudinal movement of the radiation beam along the lying patient to achieve whole body irradiation of the lying patient.
[0035] In order to achieve longitudinal movement of the radiation beam along the lying patient, in some embodiments, the motion control device includes a beam deflection device, which is used to deflect the movement direction of the radiation beam.
[0036] In some embodiments, Figure 2 As shown, the beam deflection device includes a deflection pivot 1010, which can pivot around its own axis. The deflection pivot 1010 is connected to the beam generating device 101. The rotation of the deflection pivot 1010 drives the beam generating device 101 to pivot, thereby controlling the movement direction of the radiation beam 104, so that the radiation beam is deflected longitudinally along the recumbent patient P to achieve whole-body irradiation of the recumbent patient P.
[0037] In some embodiments, Figure 3 As shown, the beam deflection device includes a deflection magnet 1011, which is located below the beam generating device 101. By controlling the current loaded on the deflection magnet 1011, the direction of the magnetic field generated by the deflection magnet 1011 is adjusted, thereby controlling the movement direction of the radiation beam 104, so that the radiation beam 104 is deflected along the longitudinal direction (Y direction) of the lying patient, so as to achieve whole-body irradiation of the lying patient P.
[0038] In order to realize the longitudinal movement of the radiation beam along the lying patient, in some embodiments, the whole body irradiation accelerator provided by the embodiment of the present application further includes a linear guide mechanism arranged along the longitudinal direction of the lying patient, and the beam generating device is configured to move along the linear guide mechanism. During irradiation, the motion control device controls the beam generating device to move along the linear guide mechanism so that the radiation beam moves along the longitudinal direction of the lying patient, so as to realize whole body irradiation of the lying patient.
[0039] like Figure 4 As shown, the whole-body irradiation accelerator also includes: a linear guide 105, which is arranged along the longitudinal direction (Y direction) of the lying patient, and the beam generating device 101 is connected to the linear guide 105 through a slider, and the sliding cooperation between the slider and the linear guide 105 enables the beam generating device 101 to move along the linear guide 105, so that the radiation beam 104 moves along the longitudinal direction (Y direction) of the lying patient P, so as to realize the whole-body irradiation of the lying patient P.
[0040] In some embodiments, the linear guide mechanism can also be a lead screw, which is arranged along the longitudinal direction (Y direction) of the lying patient. The beam generating device is connected to the lead screw through a nut. The nut and the lead screw are rotated together to realize the movement of the beam generating device along the lead screw, so that the radiation beam moves along the longitudinal direction of the lying patient to achieve whole-body irradiation of the lying patient.
[0041] In some embodiments, the treatment couch of the whole-body irradiation accelerator provided in the present application may have an upper bed position and an irradiation position, and the treatment couch can switch between the upper bed position and the irradiation position.
[0042] Among them, the upper bed position is used for positioning the patient before receiving radiation therapy, and the irradiation position is used for the patient to receive radiation therapy, that is, the patient is positioned when the treatment bed is in the upper bed position, and the patient's irradiation therapy is performed when the treatment bed is in the irradiation position. By setting the upper bed position and the irradiation position for the treatment bed, it is convenient for the patient to be positioned before receiving radiation therapy.
[0043] In some embodiments, the treatment bed can move in a horizontal direction to achieve switching between the upper bed position and the irradiation position; in other embodiments, the treatment bed can achieve switching between the upper bed position and the irradiation position by rotating. The above is a detailed introduction to a whole-body irradiation accelerator provided in an embodiment of the present application. This article uses specific examples to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the method of the present application and its core idea; at the same time, for those skilled in the art, according to the idea of the present application, there will be changes in the specific implementation method and application scope. In summary, the content of this specification should not be understood as a limitation on the present application.
Claims
1. A whole body irradiation accelerator, characterized in that: include: A beam generating device for generating a radiation beam; a treatment couch, located below the beam generating device, and used to carry a lying patient; A motion control device is used to control the longitudinal movement of the radiation beam or the treatment bed along the lying patient during irradiation to achieve whole body irradiation of the lying patient.
2. The whole body irradiation accelerator according to claim 1, characterized in that: The motion control device comprises a beam deflection device for deflecting the motion direction of the radiation beam; During irradiation, the treatment couch remains stationary, and the beam deflection device controls the longitudinal deflection movement of the radiation beam along the lying patient to achieve whole-body irradiation of the lying patient.
3. The whole body irradiation accelerator according to claim 2, characterized in that: The beam deflection device includes a deflection pivot, which is connected to the beam generating device and is used to drive the beam generating device to pivot to control the movement direction of the radiation beam so that the radiation beam moves in a longitudinal direction of the lying patient to achieve whole-body irradiation of the lying patient.
4. The whole body irradiation accelerator according to claim 2, characterized in that: The beam deflection device includes a deflection magnet, which is located below the beam generating device and is used to control the movement direction of the radiation beam so that the radiation beam moves in a longitudinal direction of the lying patient to achieve whole-body irradiation of the lying patient.
5. The whole body irradiation accelerator according to claim 1, characterized in that: Also included is a linear guide mechanism disposed in the longitudinal direction of the lying patient, wherein the beam generating device is configured to move along the linear guide mechanism; During irradiation, the treatment couch remains stationary, and the motion control device controls the beam generating device to move along the linear guide mechanism, so that the radiation beam moves along the longitudinal direction of the lying patient to achieve whole-body irradiation of the lying patient.
6. The whole body irradiation accelerator according to claim 5, characterized in that: The linear guide mechanism comprises a linear guide rail and a lead screw.
7. The whole body irradiation accelerator according to claim 1, characterized in that: During irradiation, the radiation beam remains stationary, and the motion control device controls the treatment couch to move longitudinally along the lying patient to achieve whole-body irradiation of the lying patient.
8. The whole body irradiation accelerator according to claim 1, characterized in that: The treatment couch has an upper bed position and an irradiation position, and the treatment couch can switch between the upper bed position and the irradiation position.
9. The whole body irradiation accelerator according to claim 8, characterized in that: The treatment couch can move in a horizontal direction to achieve switching movement between the upper bed position and the irradiation position.
10. The whole body irradiation accelerator according to claim 9, characterized in that: The treatment couch is capable of rotating to achieve switching movement between the upper couch position and the irradiation position.