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CN-224220603-U - Magnetic resonance guided radiotherapy apparatus

CN224220603UCN 224220603 UCN224220603 UCN 224220603UCN-224220603-U

Abstract

The application relates to the technical field of medical equipment and discloses a magnetic resonance guided radiotherapy device which comprises a radiotherapy component, a magnet component and a first driving component, wherein the radiotherapy component comprises a treatment head, the magnet component is provided with a treatment space, the magnet component comprises a coil component and a shell forming the treatment space, the coil component is arranged in the inner space of the shell and extends continuously around the treatment space and is in an annular structure, at least one communication space is arranged on the shell, the communication space penetrates through the shell and is communicated with the treatment space, the first driving component is arranged around the shell, the treatment head is connected with the first driving component, and the first driving component is used for driving the treatment head to move relative to the magnet component. The magnetic resonance guided radiotherapy equipment provided by the application can solve the problems that the treatment precision and the treatment effect are affected and the treatment efficiency is greatly reduced because the radiotherapy rays emitted by the radiotherapy component in the related technology can only irradiate the patient after passing through the magnet component.

Inventors

  • ZOU LIJUN
  • HU FEN

Assignees

  • 上海联影医疗科技股份有限公司

Dates

Publication Date
20260512
Application Date
20250312

Claims (10)

  1. 1. A magnetic resonance guided radiotherapy apparatus comprising: a radiotherapy component (10), the radiotherapy component (10) comprising a treatment head; The device comprises a magnet component (20) and a treatment space (201), wherein the magnet component (20) comprises a coil component (21) and a shell (22) forming the treatment space (201), the coil component (21) is arranged in the inner space of the shell (22), the coil component (21) continuously extends around the treatment space (201) and is in an annular structure, at least one communication space (202) is arranged on the shell (22), and the communication space (202) penetrates through the shell (22) and is communicated with the treatment space (201); -a first drive assembly (30), the first drive assembly (30) being arranged around the housing (22), the treatment head being connected to the first drive assembly (30), the first drive assembly (30) being arranged to drive the treatment head in movement relative to the magnet part (20).
  2. 2. The magnetic resonance guided radiotherapy apparatus of claim 1, wherein the magnet component (20) is provided with a plurality of the communication spaces (202), and a plurality of the communication spaces (202) are arranged at intervals along the circumference of the housing (22), the first drive assembly (30) is configured to drive the therapy head to rotate about the axis of the housing (22), the magnetic resonance guided radiotherapy apparatus (100) further comprises a second drive assembly (40), the second drive assembly (40) is connected with the housing (22), and the second drive assembly (40) is configured to drive the housing (22) to rotate about the axis of the housing (22).
  3. 3. The magnetic resonance guided radiotherapy apparatus of claim 2, characterized in that the angle between the axes of adjacent two of the communication spaces (202) is 10 ° -45 °.
  4. 4. The magnetic resonance guided radiotherapy apparatus of claim 1, wherein the housing (22) comprises an inner container (221), a heat shielding layer (222) and an outer container (223) which are sequentially sleeved from inside to outside, the treatment space (201) is a space surrounded by the inner container (221), the communication space (202) penetrates through the inner container (221), the heat shielding layer (222) and the outer container (223), the coil assembly (21) is arranged in an inner space of the inner container (221), and liquid helium is further arranged in an inner space of the inner container (221).
  5. 5. The magnetic resonance guided radiotherapy apparatus of claim 1, characterized in that the housing (22) is provided with a mounting space (204), at least one of the first drive assembly (30) and the radiotherapy component (10) being provided in the mounting space (204).
  6. 6. The magnetic resonance guided radiotherapy apparatus of claim 5, characterized in that the length direction of the installation space (204) is parallel to the axis of the housing (22) or perpendicular to the axis of the housing (22).
  7. 7. The magnetic resonance guided radiotherapy apparatus of claim 6, characterized in that the magnetic resonance guided radiotherapy apparatus (100) further comprises a second drive assembly (40), the second drive assembly (40) being connected with the housing (22) and the second drive assembly (40) being for driving the housing (22) to rotate about the axis of the housing (22).
  8. 8. The magnetic resonance guided radiotherapy apparatus of claim 5, wherein the communication space (202), the installation space (204), the first driving assembly (30) and the radiotherapy unit (10) are all provided in plurality, and a plurality of the communication spaces (202), a plurality of the installation spaces (204), a plurality of the first driving assemblies (30) and a plurality of the radiotherapy units (10) are provided in one-to-one correspondence, and a plurality of the communication spaces (202) are provided along a circumferential interval of the housing (22).
  9. 9. The magnetic resonance guided radiotherapy apparatus of any one of claims 1 to 8, characterized in that the magnetic resonance guided radiotherapy apparatus (100) further comprises a carrier (50) and a third drive assembly (60) connected, the carrier (50) being provided to the treatment space (201) and being for supporting a patient (200), the third drive assembly (60) being for driving the carrier (50) in movement relative to the magnet part (20).
  10. 10. The magnetic resonance guided radiotherapy apparatus of claim 9, characterized in that the third drive assembly (60) is adapted to drive the carrier (50) in rotation about the axis of the magnet part (20) and/or the third drive assembly (60) is adapted to drive the carrier (50) in a direction parallel to the axis of the housing (22) or perpendicular to the axis of the housing (22).

Description

Magnetic resonance guided radiotherapy apparatus Technical Field The application relates to the technical field of medical equipment, in particular to a magnetic resonance guided radiotherapy device. Background The magnetic resonance guided radiotherapy apparatus serves as an integrated device of magnetic resonance (MR, magnetic Resonance) and linear accelerator (LINAC). Compared with CT (Computed Tomography) guided radiotherapy equipment, the magnetic resonance guided radiotherapy equipment (MR-LINAC) has small radiation dose and high imaging resolution to soft tissue structures, so that the magnetic resonance guided radiotherapy equipment has been widely used. In the related art, a magnetic resonance guided radiotherapy apparatus generally includes a frame, a radiotherapy component and a magnet component, the magnet component includes a coil assembly and a housing, and liquid helium is filled in the housing. When using, place the patient in the inside of magnet part, the radiotherapy ray that the radiotherapy part sent needs to pass the magnet part and just can shine the patient, because there is certain energy decay when the radiotherapy ray pierces through coil assembly and casing, and the liquid helium difference that the radiotherapy ray penetrated also will cause the difference of radiation dose to influence its treatment precision and treatment, lead to treatment effeciency greatly reduced. Disclosure of utility model The application provides a magnetic resonance guided radiotherapy device, which can solve the problems that the treatment precision and the treatment effect are affected and the treatment efficiency is greatly reduced because the radiotherapy rays emitted by a radiotherapy component in the related technology can be irradiated to a patient only by passing through the magnet component. The embodiment of the application provides a magnetic resonance guided radiotherapy device, which comprises: a radiotherapy component comprising a treatment head; the device comprises a magnet component, a magnet body and a control unit, wherein the magnet component is provided with a treatment space and comprises a coil component and a shell body forming the treatment space, the coil component is arranged in the inner space of the shell body, the coil component continuously extends around the treatment space and is in an annular structure, and at least one communication space is arranged on the shell body, penetrates through the shell body and is communicated with the treatment space; The first driving assembly is arranged around the shell, the treatment head is connected with the first driving assembly, and the first driving assembly is used for driving the treatment head to move relative to the magnet component. In some embodiments, the magnet component is provided with a plurality of the communication spaces, the communication spaces are arranged at intervals along the circumferential direction of the housing, the first driving assembly is used for driving the treatment head to rotate around the axis of the housing, the magnetic resonance guided radiotherapy apparatus further comprises a second driving assembly, the second driving assembly is connected with the housing, and the second driving assembly is used for driving the housing to rotate around the axis of the housing. In some of these embodiments, the angle between the axes of two adjacent communication spaces is 10 ° -45 °. In some embodiments, the casing comprises an inner container, a heat shielding layer and an outer container which are sequentially sleeved from inside to outside, the treatment space is a space surrounded by the inner container, the communication space penetrates through the inner container, the heat shielding layer and the outer container, the coil assembly is arranged in the inner space of the inner container, and liquid helium is further arranged in the inner space of the inner container. In some of these embodiments, the housing is provided with an installation space, and at least one of the first drive assembly and the radiotherapy component is provided in the installation space. In some of these embodiments, the length direction of the mounting space is parallel to the axis of the housing or perpendicular to the axis of the housing. In some of these embodiments, the magnetic resonance guided radiotherapy apparatus further comprises a second drive assembly coupled to the housing and configured to drive the housing to rotate about an axis of the housing. In some embodiments, the communication space, the installation space, the first driving assembly and the radiotherapy component are all plural, and plural the communication space, plural the installation space, plural the first driving assembly and plural the radiotherapy component are arranged in one-to-one correspondence, plural the communication space is arranged along the circumferential direction of the housing at intervals. In some of these embodiments, the magnetic