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WO2024222795A1 - Dispositif de positionnement d'objet de référence et son procédé de positionnement, et système d'exposition radiographique - Google Patents

Dispositif de positionnement d'objet de référence et son procédé de positionnement, et système d'exposition radiographique Download PDF

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Publication number
WO2024222795A1
WO2024222795A1 PCT/CN2024/089789 CN2024089789W WO2024222795A1 WO 2024222795 A1 WO2024222795 A1 WO 2024222795A1 CN 2024089789 W CN2024089789 W CN 2024089789W WO 2024222795 A1 WO2024222795 A1 WO 2024222795A1
Authority
WO
WIPO (PCT)
Prior art keywords
compensation
reference object
mounting surface
compensation unit
component
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
PCT/CN2024/089789
Other languages
English (en)
Chinese (zh)
Inventor
贡秋平
耿文秀
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Neuboron Therapy System Ltd
Original Assignee
Neuboron Therapy System Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Neuboron Therapy System Ltd filed Critical Neuboron Therapy System Ltd
Publication of WO2024222795A1 publication Critical patent/WO2024222795A1/fr
Anticipated expiration legal-status Critical
Pending legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
    • A61N5/00—Radiation therapy
    • A61N5/10—X-ray therapy; Gamma-ray therapy; Particle-irradiation therapy
    • A61N5/1001—X-ray therapy; Gamma-ray therapy; Particle-irradiation therapy using radiation sources introduced into or applied onto the body; brachytherapy
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B6/00—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
    • A61N5/00—Radiation therapy
    • A61N5/10—X-ray therapy; Gamma-ray therapy; Particle-irradiation therapy
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
    • A61N5/00—Radiation therapy
    • A61N5/10—X-ray therapy; Gamma-ray therapy; Particle-irradiation therapy
    • A61N5/1048—Monitoring, verifying, controlling systems and methods
    • A61N5/1049—Monitoring, verifying, controlling systems and methods for verifying the position of the patient with respect to the radiation beam
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
    • A61N5/00—Radiation therapy
    • A61N5/10—X-ray therapy; Gamma-ray therapy; Particle-irradiation therapy
    • A61N5/1077—Beam delivery systems
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
    • A61N5/00—Radiation therapy
    • A61N5/10—X-ray therapy; Gamma-ray therapy; Particle-irradiation therapy
    • A61N2005/1092—Details
    • A61N2005/1096—Elements inserted into the radiation path placed on the patient, e.g. bags, bolus, compensators

Definitions

  • the present application relates to the technical field of radioactive ray irradiation, and in particular to a reference object positioning device and a positioning method thereof, and a radiation irradiation system.
  • a reference object positioning device and positioning method in order to quickly and accurately keep the reference object at the corresponding position, a radiation irradiation system and method are provided, which can quickly, accurately and reliably install and keep the reference object on the corresponding plane in the preparation room, and at the same time compensate for the gap between the reference object and the corresponding plane.
  • the first aspect of the present application provides a reference object positioning device, including a compensation component, the compensation component is used to install and fix the reference object on a mounting surface, one side of the compensation component is connected to one side of the reference object, and the other side of the compensation component is mounted on the mounting surface.
  • the mounting surface can be a wall, a desktop, a floor, a top surface or other surfaces.
  • one side of the compensation component is adjustably connected to the reference object, and the other side of the compensation component is adjustably mounted on the mounting surface.
  • the compensation component is used to compensate for the gap between the reference object and the mounting surface.
  • the compensation component can adjust the positional relationship between the reference object and the mounting surface. Specifically, the compensation component can compensate for the gap between the reference object and the mounting surface so that the reference object can match the unevenness or inclination of the mounting surface, so that the reference object can be accurately installed on the mounting surface, reducing the installation deviation of the reference object.
  • the compensation component is adjustable relative to the mounting surface in at least one direction.
  • the reference object is mounted to the mounting surface by adjusting the compensation component in at least one direction.
  • the compensation component is adjustable relative to the mounting surface in at least two directions.
  • the reference object is mounted to the mounting surface by adjusting the compensation component in at least two directions.
  • the compensation component can be adjusted in three directions relative to the mounting surface.
  • the reference object is mounted to the mounting surface by adjusting the compensation component in three directions.
  • the compensation assembly includes a first compensation unit adjustably connected to the reference object, the first compensation unit is configured to move along a first axis relative to the mounting surface, and when a side of the reference object used to mount the compensation assembly is not parallel to the mounting surface, the reference object is mounted to the mounting surface through the first compensation unit.
  • the first compensation unit can move relative to the mounting surface to adjust the position of the first compensation unit relative to the mounting surface, and when a side of the reference object connected to the compensation assembly is not parallel to the mounting surface, the first compensation unit can match the unevenness or inclination of the mounting surface, thereby accurately mounting the reference object on the mounting surface.
  • the compensation assembly also includes a second compensation unit adjustably connected to the first compensation unit, the second compensation unit is configured to move relative to the mounting surface along a second axis different from the first axis, when one side of the reference object used to install the compensation assembly is not parallel to the mounting surface, the reference object is mounted to the mounting surface through the second compensation unit, and the compensation assembly is used to adjustably compensate for the gap between the reference object and the mounting surface in the direction defined by the first axis and/or the second axis, so that the reference object can more accurately match the unevenness or inclination of the mounting surface.
  • the first compensation unit includes a first compensation member and a second compensation member connected to the first compensation member, and the second compensation member is adjustably connected to the reference object along a first axis.
  • the second compensation member can move along the first axis relative to the reference object or the mounting surface, so that the first compensation unit can move along the first axis to meet the corresponding adjustment requirements.
  • the second compensation unit includes a third compensation member connected to the mounting surface, the first compensation member is adjustably connected to the third compensation member along a second axis, and the first axis is perpendicular to the second axis.
  • the third compensation member can move along the second axis relative to the first compensation member or the mounting surface, so that the second compensation unit can move along the second axis to meet the corresponding adjustment requirements.
  • the compensation component further includes at least one locking component, the compensation component is connected to the reference object through the locking component, the locking component is connected to at least one of the first compensation unit, the second compensation unit and the reference object, and the locking component
  • the first compensation unit and/or the second compensation unit are configured to be locked relative to the reference object.
  • the locking assembly can limit the position of one or more of the first compensation unit, the second compensation unit and the reference object, prevent the compensation assembly and the mounted reference object from being offset by external forces, and improve the accuracy of the reference object installation position.
  • the locking assembly includes a first locking member connected between the reference object and the second compensation member, and/or a second locking member connected between the first compensation member and the third compensation member, the first locking member is configured to lock the first compensation unit in a first direction, and the second locking member is configured to lock the second compensation unit in a second direction.
  • the locking assembly can limit the movement of the reference object in the first direction and the second direction relative to the mounting surface, and limit the movement of the reference object in multiple directions, thereby further improving the accuracy of the installation position of the reference object.
  • the second aspect of the present application provides a reference object positioning method, wherein the reference object is positioned on a mounting surface by a reference object positioning device, the reference object positioning device includes a compensation component, and the positioning method includes: installing the reference object on one side of the compensation component; moving the reference object and the compensation component to the mounting surface; adjusting the compensation component to compensate for the gap between one side of the reference object used to install the compensation component and the mounting surface; and installing the other side of the compensation component on the mounting surface.
  • the compensation component can adjust the positional relationship between the reference object and the mounting surface, match the unevenness or inclination of the mounting surface, so that the reference object matches the unevenness or inclination of the mounting surface, and by setting the compensation component, the reference object can be accurately mounted on the mounting surface; in addition, when the mounting surface is a non-planar or non-smooth surface, the compensation component can reduce the deviation of the reference object installation position.
  • the compensation assembly includes a first compensation unit and a second compensation unit
  • the positioning method includes: adjusting the first compensation unit so that the second compensation unit connected to the first compensation unit is close to the mounting surface; and/or adjusting the second compensation unit so that the second compensation unit fits the mounting surface; and installing the second compensation unit to the mounting surface so that the reference object is fixed on the mounting surface.
  • the first compensation unit or the second compensation unit can be adjusted separately, and the first compensation unit and the second compensation unit can also be adjusted simultaneously.
  • the compensation assembly can move in a first direction and a second direction relative to the mounting surface, and can further compensate for the gap between the reference object and the mounting surface in multiple directions, so that the reference object can accurately match the inclination and unevenness of the mounting surface, so that the reference object can be accurately and quickly mounted to the mounting surface.
  • the method for adjusting the first compensation unit when a side of the reference object used to install the compensation component is not parallel to the installation surface, includes: when a side of the first compensation unit used to install the second compensation unit is not parallel to the installation surface, adjusting the position of the first compensation unit relative to the installation surface in a first direction; the method for adjusting the second compensation unit includes: when a side of the second compensation unit facing the installation surface is not parallel to the installation surface, adjusting the position of the second compensation unit relative to the installation surface in a second direction;
  • the gap between the reference object and the mounting surface is compensated by the compensation component in the first direction and/or the second direction, and the compensation component is configured to match the inclination of the mounting surface relative to a side of the reference object for mounting the compensation component.
  • the first compensation unit includes a first compensation member and a second compensation member connected to the first compensation member, the second compensation member is adjustably connected to the reference object along a first axis, and the method for adjusting the first compensation unit includes: The second compensating member is adjusted upward, and the first compensating member and the second compensating member move synchronously, and the positions of the first compensating member and the second compensating member relative to the mounting surface are adjusted.
  • the second compensating member can move along the first axis relative to the reference object or the mounting surface, so that the first compensating unit can move along the first axis to meet the corresponding adjustment requirements.
  • the second compensation unit includes a third compensation member
  • the first compensation member is adjustably connected to the third compensation member along a second axis perpendicular to the first axis
  • the method for adjusting the second compensation unit includes: adjusting the third compensation member along the second direction, adjusting the position of the third compensation member relative to the mounting surface.
  • the third compensation member can move along the second axis relative to the first compensation member or the mounting surface, so that the second compensation unit can move along the second axis to meet the corresponding adjustment requirements.
  • the compensation component further includes at least one locking component, the compensation component is connected to the reference object through the locking component, the locking component is connected to at least one of the first compensation unit, the second compensation unit and the reference object, and the locking component is configured to lock the first compensation unit and/or the second compensation unit relative to the reference object; the method further includes: locking the first compensation unit in the first direction and/or locking the second compensation unit in the second direction.
  • the locking component can limit the movement of one or more of the first compensation unit, the second compensation unit and the reference object relative to the mounting surface, prevent the compensation component and the mounted reference object from being offset by external forces, and improve the accuracy of the reference object installation position.
  • the locking assembly includes a first locking member connected between the second compensating member and the reference object, and/or a second locking member connected between the first compensating member and the third compensating member, and the method further includes: locking the second compensating member and the reference object in a first direction by the first locking member, and locking the first compensating member and the third compensating member in a second direction by the second locking member.
  • the compensation assembly is used to compensate for the gap between the reference object and the mounting surface. After the second compensation unit is installed on the mounting surface, the locking assembly can limit the movement of the reference object in the first direction and the second direction relative to the mounting surface, further improving the accuracy of the installation position of the reference object.
  • the first compensation unit and the second compensation unit are both configured as a preset number, and two adjacent first compensation units or two adjacent second compensation units move on a third axis
  • the method includes: compensating the gap between the reference object and the mounting surface in any direction of the first direction, and/or the second direction, and/or the third direction by the compensation component.
  • the compensation component can move in multiple different directions relative to the mounting surface, and thus has the function of compensating the gap between the reference object and the mounting surface in the first, second, and third directions, so that the reference object can more accurately match the unevenness or inclination of the mounting surface.
  • the third aspect of the present application provides a radiation irradiation system, which includes a radiation source for generating a beam, an irradiation room and a preparation room, wherein the irradiation room includes a beam outlet, and the beam is emitted from the beam outlet to irradiate the object to be irradiated; the preparation room includes a reference beam outlet and a reference object positioning device; wherein the reference beam outlet is positioned to a preset position by the reference object positioning device, and the reference object positioning device includes a compensation component for installing and fixing the reference object to the preset position.
  • the above-mentioned reference object positioning device is applied in the radiation irradiation system, and the irradiation room is also provided with an actual reference object corresponding to the reference object, and the reference beam outlet is pre-positioned to a preset position by the reference object positioning device, and the object to be irradiated in the preparation room is positioned based on the preset position of the reference object or the reference beam outlet, and the preparation room is used to perform simulated irradiation treatment or simulated positioning on the object to be irradiated, thereby determining The optimal irradiation position of the object to be irradiated.
  • the reference object positioning device can reduce the installation deviation of the reference beam outlet to implement precise treatment and minimize radiation damage to normal tissues around the tumor cells of the object to be irradiated.
  • the irradiation room includes a first reference point
  • the preparation room includes a second reference point
  • the relative position of the reference beam outlet and the second reference point is consistent with the relative position of the beam outlet and the first reference point
  • the relative position of the center point of the reference beam outlet and the second reference point is consistent with the relative position of the center point of the beam outlet and the first reference point.
  • the preparation room and the irradiation room are respectively provided with the same coordinate system, and by setting a reference object positioning device, the reference beam outlet can be quickly and accurately installed to a preset position on the wall of the preparation room.
  • the reference object positioning device can reduce the installation error of the reference beam outlet to implement precise treatment.
  • the compensation component is adjustably connected to one side of the reference object, and the reference beam outlet is adjustably installed on the other side of the reference object.
  • the compensation component is used to compensate for the gap between the reference object and the mounting surface.
  • the compensation component can compensate for the gap between the reference object and the mounting surface, avoiding the situation where the reference object is directly installed on the mounting surface and cannot match the inclination and unevenness of the mounting surface, thereby reducing the deviation of the reference object installation position.
  • the compensation assembly includes a first compensation unit connected to the reference object, the first compensation unit is configured to move along a first axis relative to the mounting surface, and when a side of the reference object used to mount the compensation assembly is not parallel to the mounting surface, the reference object is mounted to the mounting surface through the first compensation unit.
  • the first compensation unit can move relative to the mounting surface, and the position of the first compensation unit relative to the mounting surface is adjusted so that one side of the first compensation unit can match the inclination of the mounting surface, thereby accurately mounting the reference object on the mounting surface.
  • the compensation component further includes a second compensation unit connected to the first compensation unit, the second compensation unit is configured to move relative to the mounting surface along a second axis different from the first axis, when the side of the reference object used to mount the compensation component is not parallel to the mounting surface, the reference object is mounted to the mounting surface through the second compensation unit, and the compensation component can be adjusted to compensate for the gap between the reference object and the mounting surface in the first direction and/or the second direction.
  • the compensation component can adjust the relative position relationship between the reference object and the mounting surface in multiple directions to compensate for the gap between the reference object and the mounting surface, so that the reference object can more accurately match the inclination and unevenness of the mounting surface.
  • the compensation component further includes at least one locking component, the compensation component is connected to the reference object through the locking component, the locking component is connected to at least one of the first compensation unit, the second compensation unit and the reference object, and the locking component is configured to lock the first compensation unit and/or the second compensation unit relative to the reference object.
  • the locking component can limit the movement of one or more of the first compensation unit, the second compensation unit and the reference object relative to the mounting surface, prevent the compensation component and the mounted reference object from being offset by external forces, and improve the accuracy of the reference object installation position.
  • a moving device for operably moving the reference object and the compensation component to a preset position.
  • the moving device drives the reference object and the compensation component to move, so as to facilitate the installation of the compensation component on the installation surface.
  • the compensation component can be adjusted in at least two directions relative to the preset position.
  • the reference object for mounting the compensation component has a gap with the preset position in at least two directions
  • the reference object is mounted to the preset position by adjusting the compensation component in at least two directions.
  • the compensation component can be adjusted in at least two directions relative to the preset position, achieving a movement adjustment in distance in one direction and/or a rotation adjustment in angle in the same or different directions.
  • the fourth aspect of the present application provides a radiation irradiation method, which includes: keeping a reference object at a preset position in a preparation room through a compensation component; simulating the positioning of an object to be irradiated based on the reference object; keeping the object to be irradiated at an irradiation position in the irradiation room; and controlling the radiation source to generate radiation so that the radiation irradiates the object to be irradiated, and the compensation component can adjust the gap between the surfaces.
  • the reference object is pre-positioned to a preset position through the compensation component, and the object to be irradiated in the preparation room is positioned based on the preset position of the reference object.
  • the object to be irradiated is simulated for irradiation treatment or simulated positioning through the preparation room, so as to determine the optimal irradiation position of the object to be irradiated.
  • the wall of the preparation room is a non-planar or non-smooth surface, the position deviation of the reference object installation can be reduced by the compensation component to implement precise treatment and minimize radiation damage to normal tissues around the tumor cells of the object to be irradiated.
  • the irradiation method includes: installing a reference object on one side of a compensation component; moving the reference object and the compensation component to a mounting surface of a preparation room; adjusting the compensation component to compensate for the gap between one side of the reference object used to install the compensation component and the mounting surface; and installing the other side of the compensation component to a preset position.
  • the gap between the reference object and the mounting surface can be adjusted so that one side of the reference object connected to the compensation component can match the inclination and unevenness of the mounting surface, thereby enabling the reference object to be accurately mounted on the mounting surface and reducing the deviation of the reference object installation position.
  • the compensation assembly includes a first compensation unit adjustably connected to the reference object, and the method includes: adjusting the first compensation unit in a first direction to adjust the position of the first compensation unit relative to the mounting surface.
  • the first compensation unit is movable relative to the mounting surface to adjust the position of the first compensation unit relative to the mounting surface so that one side of the first compensation unit matches the inclination of the mounting surface, thereby accurately mounting the reference object on the mounting surface.
  • the compensation component further includes a second compensation unit adjustably connected to the first compensation unit, and the method includes: adjusting the second compensation unit in the second direction to adjust the position of the second compensation unit relative to the mounting surface; wherein the compensation component compensates the gap between the reference object and the mounting surface in the first direction and/or the second direction, and the compensation component is configured to match the inclination of the mounting surface relative to the side of the reference object for mounting the compensation component.
  • the compensation component can compensate the gap between the reference object and the mounting surface in multiple directions, so that the reference object can be more accurately mounted to the mounting surface.
  • the compensation component further includes at least one locking component, the compensation component is connected to the reference object through the locking component, the locking component is connected to at least one of the first compensation unit, the second compensation unit and the reference object, and the locking component is configured to lock the first compensation unit and/or the second compensation unit relative to the reference object; the method further includes: locking in the first direction The first compensation unit and/or the second compensation unit are locked in the second direction.
  • the locking assembly can limit the position of one or more of the first compensation unit, the second compensation unit and the reference object, prevent the compensation assembly and the installed reference object from being offset by external forces, and improve the accuracy of the installation position of the reference object.
  • the locking assembly includes a first locking member connected between the first compensation unit and the reference object, and/or a second locking member connected between the first compensation unit and the second compensation unit, and the method further includes: locking the first compensation unit and the reference object in a first direction by the first locking member, and locking the first compensation unit and the second compensation unit in a second direction by the second locking member.
  • the locking assembly can limit the movement of the reference object in the first direction and the second direction relative to the mounting surface, further improving the accuracy of the mounting position of the reference object.
  • the reference object and the compensation component are operably moved to a preset position by a moving device, and the moving device drives the reference object and the compensation component to move, so as to facilitate the installation of the compensation component on the installation surface.
  • FIG1 is a combined stereogram of a reference object, a reference object positioning device, and a mounting surface in one embodiment of the present application;
  • FIG2 is a schematic diagram of the structure of the part of FIG1 without the mounting surface
  • FIG3 is a combined three-dimensional diagram of the partial structure of FIG1 from another viewing angle
  • FIG4 is a combined stereogram of FIG1 from another viewing angle
  • FIG5 is a partial enlarged view of point A in FIGS. 2 to 4;
  • FIG6 is a flow chart of a reference object positioning method in an embodiment of the present application.
  • FIG7 is a combined stereogram of a reference object, a reference object positioning device, and a moving device in one embodiment of the present application;
  • FIG8 is a flow chart of a method for installing a compensation component onto a mounting surface in an embodiment of the present application
  • FIG9 is a schematic diagram of a partial structure of a radiation irradiation system in an embodiment of the present application.
  • FIG10 is a schematic diagram of the layout of a radiation irradiation system in one embodiment of the present application.
  • FIG. 11 is a flow chart of a radiation irradiation method of a radiation irradiation system in an embodiment of the present application.
  • Reference object positioning device 2. Compensation assembly; 3. First compensation unit; 4. First compensation member; 5. Second compensation member; 6. Second compensation unit; 7. Third compensation member; 8. Mounting hole; 9. First hinge axis; 10. Second hinge axis; 11. Second reference object; 12. Mounting surface; 13. First locking member; 14. Second hinge axis; 15. Second reference object; 16. Second locking member; 17. Second positioning hole; 18. Second matching hole; 19. Second second locking member; 20. Moving device; 3. Support member; 41. First irradiation chamber; 22. Radioactive source; 23. Neutron generator; 24. Beam shaping body; 25. Object to be irradiated; 26. Second stage; 30. Preparation chamber; 41. Beam outlet; 42. Reference beam outlet; 5. First axis; 6. Second axis; 7. Third axis.
  • 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 the indicated technical features. Therefore, the features defined as “first” and “second” may explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "plurality” is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.
  • a first feature being “above” or “below” a second feature may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium.
  • a first feature being “above”, “above” and “above” a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature.
  • a first feature being “below”, “below” and “below” a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.
  • the above-mentioned terms “installation” and “connection” should be understood in a broad sense.
  • it can be a fixed connection, a detachable connection, or an integral molding; it can be a mechanical connection or an electrical connection; 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.
  • installation and “connection” should be understood in a broad sense.
  • it can be a fixed connection, a detachable connection, or an integral molding; it can be a mechanical connection or an electrical connection; 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.
  • FIG. 1 shows a reference object positioning device in an embodiment of the present application, wherein the reference object positioning device 100 comprises a compensation component 10, one side of the compensation component 10 is connected to one side of a reference object 20, and the other side of the compensation component 10 is adjustably mounted on a mounting surface 30.
  • the compensation component 10 and the reference object 20 disclosed in the present embodiment can be configured as a plane structure or a frame structure, and the reference object 20 can be selected as a mounting back plate or other mounting surface for mounting a simulated collimator or a reference beam outlet 401. Structure.
  • the outlet of the simulated collimator can be the reference beam outlet 401; accordingly, in the corresponding irradiation chamber, the outlet of the collimator can be the beam outlet 400.
  • the mounting surface 30 is a wall, a desktop, a ground, a top surface or other surface on which a reference object can be set, and the reference object 20 has a mounting side connected to the compensation component 10, and the compensation component 10 can adjust the positional relationship between the mounting side and the mounting surface 30.
  • the compensation component 10 can compensate for the gap between the reference object 20 and the mounting surface 30, especially when the surface of the mounting surface 30 is uneven and/or not parallel to the mounting side of the reference object 20, the compensation component 10 can make the mounting side of the reference object 20 match the mounting surface 30 through its own structure, and compensate for the unevenness and/or inclination.
  • the reference object 20 can be conveniently and accurately installed on the mounting surface 30, thereby reducing the difficulty of installing the reference object 20 directly on the mounting surface 30; at the same time, when the mounting surface 30 and the mounting side of the reference object 20 cannot be adapted, such as the mounting surface 30 and the mounting side of the reference object 20 are not parallel, or the mounting surface 30 is a non-planar or non-smooth surface, the mounting side of the reference object 20 cannot be reliably installed on the mounting surface 30 by relying solely on the conventional mounting structure, and the adjustment of the mounting surface 30 is also time-consuming, labor-intensive, and troublesome.
  • the installation position error of the reference object 20 can be reduced, so that the reference object 20 can be quickly and accurately maintained on the mounting surface 30.
  • the reference object 20 may be a mechanical arm, a simulated collimator or other structures, and correspondingly, an actual reference object having the same position, shape and size as the reference object 20 is provided in the irradiation chamber: such as a mechanical arm, a collimator, a beam outlet or other corresponding structures having the same coordinate origin.
  • the size, shape, material and quantity of the compensation component 10 and the reference object 20 are not limited.
  • the compensation component 10 can be adjusted in at least one direction relative to the mounting surface 30.
  • the reference object 20 used to install the compensation component 10 has a gap with the mounting surface 30 in at least one direction
  • the reference object 20 is installed to the mounting surface by adjusting the compensation component in at least one direction.
  • the compensation component 10 can be adjusted arbitrarily in three directions relative to the mounting surface 30.
  • the center point O of the reference object 20 can be used as the origin, as shown in FIG2, and a reference system can be established with the first axis as the X axis, the second axis as the Y axis, and the third axis as the Z axis.
  • the compensation component 10 realizes adjustment in the three axis directions of the first axis as the X axis, the second axis as the Y axis, and the third axis as the Z axis.
  • the compensation component 10 realizes matching installation of the reference object 20 to the mounting surface 30 by positive and negative adjustments in the corresponding directions.
  • the compensation assembly 10 includes a first compensation unit 11 and a second compensation unit 12.
  • One side of the first compensation unit 11 is connected to the reference object 20 through a first hinge shaft 13, and the other side is connected to the second compensation unit 12 through a second hinge shaft 14.
  • the second compensation unit 12 is used to install the first compensation unit 11 and the reference object 20 to the mounting surface 30.
  • the first compensation unit 11 moves relative to the mounting surface 30, and/or the second compensation unit 12 moves relative to the mounting surface 30.
  • the first hinge shaft 13 rotates around the first axis X
  • the second hinge shaft 14 rotates around the second axis Y
  • the first axis X is different from the second axis Y.
  • the first axis X is perpendicular to the second axis Y.
  • the first compensation unit 11 moves relative to the mounting surface 30.
  • the surface 30 rotates around the first axis X
  • the second compensation unit 12 rotates relative to the mounting surface 30 around the second axis Y.
  • the compensation assembly 10 can rotate in different directions relative to the mounting surface 30, so that the compensation assembly 10 can compensate for the gap between the reference object 20 and the mounting surface 30 in multiple directions, thereby more accurately matching the inclination or unevenness of the mounting surface 30, so that the reference object 20 can be smoothly and accurately installed on the mounting surface 30.
  • the second compensation unit 12 can also be pre-installed, and then the first compensation unit 11 and the reference object 20 are installed to the mounting surface 30 through the second compensation unit 12 fixed on the mounting surface 30 in advance.
  • the first compensation unit 11 can also move along the first axis X, the second axis Y and/or the third axis Z relative to the mounting surface 30, and/or the second compensation unit 12 can move along the first axis X, the second axis Y and/or the third axis Z relative to the mounting surface 30.
  • a universal joint can be used for rotation between the first compensation unit 11 and the second compensation unit 12, and between the first compensation unit 11 and the reference object 20, so that the first compensation unit 11 can be rotated and adjusted relative to the reference object 20, and the second compensation unit 12 can be rotated and adjusted relative to the first compensation unit 11.
  • the first compensation unit 11 includes a first compensation member 111 and a second compensation member 112 connected to the first compensation member 111.
  • the number of the first compensation member 111 and the second compensation member 112 are both two.
  • the two first compensation members 111 are parallel to each other, for example, the two first compensation members 111 are arranged parallel to the first axis X
  • the two second compensation members 112 are parallel to each other, for example, the two second compensation members 112 are arranged parallel to the second axis Y
  • the first compensation member 111 and the second compensation member 112 together form a polygonal connection frame.
  • the second compensation unit 12 includes a third compensation member 121.
  • the number of the third compensation member 121 can be set to two, and the upper and lower third compensation members 121 are respectively connected to the two first compensation members 111 through the second hinge shaft 14.
  • the second compensation member 112 is connected to the reference object 20 through the first hinge shaft 13.
  • the second compensation member 112 can move relative to the reference object 20 or the mounting surface 30, so that the first compensation unit 11 can move along the first axis X, meeting the corresponding adjustment requirements; in a second direction parallel to the second axis Y, the third compensation member 121 can move relative to the first compensation member 111 or the mounting surface 30, so that the second compensation unit 12 can move along the second axis Y, thereby adjusting the positional relationship of the compensation assembly 10 relative to the mounting surface 30 in either the first direction or the second direction, so that both the third compensation members 121 can accurately match the mounting surface 30, facilitating the installation of the two third compensation members 121 on the mounting surface 30, so as to quickly and accurately install the reference object 20 on the mounting surface 30. It is easy to understand that the number of the third compensation members 121 is not limited. When there are one or more third compensation members 121, they have multiple contact surfaces, which may directly match the actual surface of the mounting surface and are not coplanar with each other.
  • first compensation member 111 rotates on the third compensation member 121 through the movable second hinge shaft 14
  • second compensation member 112 rotates on the reference object 20 through the first hinge shaft 13
  • the requirement of flexible compensation through adjustment of the compensation component 10 is met.
  • the compensation component 10 may separately include a first compensation unit 11 or a second compensation unit 12, that is, the compensation component 10 is configured to rotate only in the first direction relative to the mounting surface 30, or the compensation component 10 is configured to rotate only in the second direction relative to the mounting surface 30.
  • the above structure can also meet the adjustment requirements of the compensation component 10.
  • one or all of the first compensation unit 11 and the second compensation unit 12 can be configured as multiple, and two adjacent first compensation units 11 or two adjacent second compensation units 12 are connected by a third hinge shaft (not shown), and the axial direction of the third hinge shaft has a third axis, and the first compensation unit 11 or the second compensation unit 12 can rotate around the third axis.
  • the direction parallel to the third axis Z is defined as the third direction.
  • the third direction is different from the first direction and the second direction.
  • the compensation component 10 can compensate for the gap between the reference object 20 and the mounting surface 30 in multiple directions, so that the compensation component 10 can more accurately match the inclination or unevenness of the mounting surface 30.
  • the mounting surface 30 has multiple mounting connections (not shown) connected to the reference object 20. When the multiple mounting connections are connected to the mounting surface 30 and are located in different planes, the unevenness and/or inclination between the mounting connections can be compensated by the compensation component 10, and the matching degree of the compensation component 10 can be further improved.
  • Both third compensation parts 121 are installed on the mounting surface 30 in a detachable manner, and the detachable manner may be a bolt connection manner, a snap connection manner or other common connection manner.
  • the detachable bolt connection manner disclosed in this embodiment is specifically as follows: a plurality of mounting holes 1211 at different positions are provided on the third compensation part 121. Based on actual working conditions, bolts are selectively extended into suitable mounting holes 1211 to achieve adjustable and detachable connection of the third compensation part 121 to the mounting surface 30, thereby meeting the working requirements of different working conditions.
  • the reference object positioning device 100 further includes a locking assembly 40, through which the compensation assembly 10 is connected to the reference object 20.
  • the locking assembly 40 is used to limit the movement of the reference object 20 relative to the mounting surface 30, so that the reference object 20 is fixed.
  • the locking assembly 40 includes a first locking member 41 and a second locking member 42.
  • the first locking member 41 is connected between the reference object 20 and the second compensation member 112. In the first direction, the first locking member 41 can lock the first compensation unit 11; the second locking member 42 is connected between the first compensation member 111 and the third compensation member 121. In the second direction, the second locking member 42 can lock the second compensation unit 12.
  • the locking assembly 40 simultaneously limits the reference object 20 in the first, second and/or third directions, prevents the compensation assembly 10 and the reference object 20 mounted on the mounting surface 30 from being offset by external forces, and improves the installation position accuracy of the reference object 20.
  • the first locking member 41 and the second locking member 42 may include a locking seat 411 and a limiting member 412 rotatably connected to the locking seat 411.
  • Matching holes 414 are provided on the first compensation unit 11 and the second compensation unit 12.
  • the matching holes 414 may be provided in multiple groups, and the limiting member 412 is provided with positioning holes 413 that match the matching holes 414. Adjust the limiting member 412, such as rotating it, aligning the positioning hole 413 on the limiting member 412 with the matching hole 414, and extending into the positioning hole 413 and the matching hole 414 at the same time through the connecting member (not shown in the figure).
  • the connecting member can adjust the positions of the limiting member 412 and the matching hole 414
  • the connector fixes the stopper 412 and the adapter hole 414 to fix the first compensation unit 11 and the second compensation unit 12.
  • the connector may be a nut, a screw, a pin or other connection structure.
  • the locking assembly 40 may include only the first locking member 41 or the second locking member 42, and the locking assembly 40 may be locked in at least one of the first direction and the second direction.
  • the number of the first locking member 41 and the second locking member 42 is not limited, as long as the locking requirements are met.
  • the shape of the compensation component 10 is also not limited, and can be a polygonal, annular, circular or irregular shape; the compensation component 10 can also be connected to one side of the reference object through a universal structure or an adaptive adjustment structure, such as a universal ball mount, a pan-tilt head, etc., to ensure an adjustable connection between the reference object and the mounting surface.
  • the present application also provides a reference object positioning method for positioning a reference object using the reference object positioning device, the method comprising the following steps:
  • one side of the compensation component 10 is adjustably connected to the reference object 20 .
  • the compensation component 10 and the reference object 20 are operably moved to the mounting surface 30 by the moving device 50 , so that the other side of the compensation component 10 can be adjustably mounted on the mounting surface 30 .
  • the compensation reference 20 is used to install the gap between one side of the compensation component 10 and the mounting surface 30:
  • the compensation component 10 can move relative to the mounting surface 30 to adjust the position of the compensation component 10 relative to the mounting surface 30, so that the side of the reference object 20 can match the unevenness and/or inclination of the mounting surface 30.
  • the situation that the side of the reference object 20 connected to the compensation component 10 is not parallel to the mounting surface 30 includes: the plane where the side of the compensation component 10 is located is not parallel to the plane where the mounting surface 30 is located; or the plane where the mounting surface 30 is located is not flat enough, resulting in a gap between the installation position of the side of the compensation component 10 and the mounting surface 30, etc.
  • the reference object 20 can be installed on the mounting surface 30 in a matching manner, and the two third compensation parts 121 are both installed on the mounting surface 30 in a detachable manner, which can be a bolt connection method, a snap connection method or other common connection methods, thereby reducing the position error of the reference object 20 caused by the tilt or unevenness of the mounting surface 30 due to construction and other reasons, and the reference object 20 can be directly installed on the mounting surface 30 smoothly and accurately through the compensation component 10.
  • the moving device 50 may be a robotic arm, a conveyor belt, a transfer table or other transfer structures.
  • the moving device 50 of this embodiment is a robotic arm. It is easy to understand that in the irradiation chamber of this embodiment, a robotic arm with the same coordinate origin is correspondingly provided.
  • the robotic arm 50 drives the reference object 20 and the compensation assembly 10 to move.
  • the robotic arm 50 has multiple degrees of freedom of movement, which is convenient for moving the reference object 20 to the installation surface 30. 20 is moved to a preset position, and then installed on the mounting surface 30 by cooperating with the compensation component 10.
  • the reference object 20 of the present embodiment is a mounting back plate of a simulated collimator. It is easy to understand that in the irradiation chamber of the present embodiment, a mounting back plate of a collimator is correspondingly set at the same position as an actual reference object.
  • the reference object 20 is connected to the robot arm 50 through a detachable structure.
  • the detachable structure disclosed in the present embodiment is: a flange (not shown) and a support member 51 connected to the flange, one end of the support member 51 is fixed to the robot arm 50 through the flange, and the other end is connected to the reference object 20.
  • the support member 51 disclosed in the present embodiment can be a cross mounting frame, and the cross mounting frame and the flange are detachably connected by bolts. It is easy to understand that the support member 51 disclosed in the present embodiment can also be other forms of mounting brackets.
  • mounting the other side of the compensation assembly 10 on the mounting surface 30 specifically includes:
  • the first compensation unit 11 is adjusted so that the second compensation unit 12 movably connected to the first compensation unit 11 is as close to the mounting surface 30 as possible:
  • the mounting surface 30 may have a certain degree of roughness, unevenness or inclination, or when one side of the reference object 20 used to mount the compensation component 10 is not parallel to the mounting surface 30, the first compensation unit 11 rotates relative to the mounting surface 30 along the first direction of the first axis X to adjust the gap between the second compensation unit 12 and the mounting surface 30. This adjustment can at least achieve adjustment in the X and/or Y direction.
  • the second compensation unit 12 rotates around the second direction relative to the mounting surface 30, and the compensation component 10 with the first and second directions more accurately matches the mounting surface 30, so that the side of the reference object 20 connected to the compensation component 10 is parallel to the mounting surface 30.
  • the second compensation unit 12 makes one side of the reference object 20 connected to the compensation component 10 parallel to or matched with the mounting surface 30. In the above parallel state, the surface of the second compensation unit 12 can more accurately match the surface of the mounting surface 30. By fixing the second compensation unit 12, the reference object 20 can be smoothly installed on the mounting surface 30.
  • only the first compensation unit 11 or the second compensation unit 12 may be adjusted without setting or adjusting the first compensation unit 11 and the second compensation unit 12 at the same time.
  • the side of the reference object 20 connected to the compensation component 10 may be parallel to or matched with the mounting surface 30, and the surface of the second compensation unit 12 may more accurately match the surface of the mounting surface 30.
  • the reference object 20 may be smoothly installed on the mounting surface 30.
  • Adjusting the first compensation unit 11 so that the second compensation unit 12 connected to the first compensation unit 11 is close to the mounting surface 30 further includes: adjusting the second compensation member 112 in the first direction.
  • the second compensation member 112 can move in the first direction relative to the reference object 20 or the mounting surface 30, and the first compensation member 111 and the second compensation member 112 move synchronously to adjust the positions of the first compensation member 111 and the second compensation member 112 relative to the mounting surface 30.
  • Adjusting the second compensation unit 12 so that the second compensation unit 12 fits the mounting surface 30 further includes: adjusting the third compensation member 121 along the second direction.
  • the third compensation member 121 can move relative to the first compensation member 111 or the mounting surface 30 in the second direction to adjust the position of the third compensation member 121 relative to the mounting surface 30.
  • the positioning method also includes a locking step, specifically: in the first direction, the first locking piece 41 can lock the first compensation unit 11; in the second direction, the second locking piece 42 can lock the second compensation unit 12, and the locking component 40 simultaneously limits the reference object 20 in the first and second directions to prevent the compensation component 10 and the reference object 20 installed on the mounting surface 30 from being offset by external forces, thereby improving the installation accuracy of the reference object 20.
  • the above-mentioned locking step also includes: adjusting the limit piece 412, aligning the positioning hole 413 on the limit piece 412 with the adapter hole 414, and extending the connecting piece into the positioning hole 413 and the adapter hole 414 at the same time to achieve the fixation of the first compensation unit 11 and the second compensation unit 12, so as to lock the absolute position of the adjusted first compensation unit 11 and the second compensation unit 12.
  • the present application also provides a radiation irradiation system.
  • the irradiation room includes a specific component or marker as an actual reference object.
  • the specific component or marker has a relative spatial position relative to the spatial reference point.
  • an object with the same shape and size as the specific component or marker in the irradiation room can be set at the corresponding position in the preparation room as a reference object.
  • the actual reference object and the reference object can be used as references to simulate the positioning of the object to be irradiated in the preparation room in advance, and then the object to be irradiated can be quickly and accurately adjusted and positioned in the irradiation room based on the results of the simulated positioning, which is conducive to subsequent precise treatment. Therefore, it is considered that the above-mentioned compensation component 10 is used in the radiation irradiation system to position the reference object 20 to the mounting surface 30.
  • the radiation irradiation system includes an irradiation chamber 200 accommodating a beam outlet 400, a preparation chamber 300 accommodating a reference object positioning device 100 and a reference beam outlet 401, and a radiation source 201.
  • the irradiation chamber 200 includes a first reference point (such as selecting a robot arm origin O1 ), and the preparation chamber 300 includes a second reference point (such as selecting a robot arm origin O2 ).
  • the reference object positioning device 100 is used to position the reference beam outlet 401 to a preset position to ensure that the relative position of the reference beam outlet 401 and the second reference point is consistent with the relative position of the beam outlet 400 and the first reference point.
  • the preparation room 300 can be used as a general term for facilities for preparatory work before radiation therapy.
  • the reference object 20 is installed on the mounting surface 30 in the preparation room 300 through the compensation component 10, and/or the above-mentioned reference object positioning method is implemented in the preparation room 300.
  • the preparation room 300 and the irradiation room 200 can be arranged in the same building or in different buildings.
  • some facilities in the preparation room 300 are preferably arranged in a manner that is basically the same as the relative position of the core equipment in the irradiation room 200.
  • the preparation room 300 and the irradiation room 200 are arranged in a basically mirror-image pattern. It should be noted that they can also be arranged in a non-mirror-image basically consistent pattern.
  • the reference object 20 can also be installed and adjusted in the irradiation room 200 where radiation therapy is not performed, or it can also be installed and adjusted in the irradiation room 200 with a radiation source.
  • the other irradiation chambers (not shown) of 201 are carried out, and the collimator mounting back plate in the irradiation chamber is adjusted and mounted on the mounting surface using the same compensation assembly 10.
  • a loading table 203 for loading the object 202 to be irradiated is provided in both the irradiation chamber 200 and the preparation chamber 300.
  • the object 202 to be irradiated may be a person or an animal.
  • the radiation source 201 includes a neutron generating device 2011.
  • the radiation source 201 is used to generate radiation with a neutron beam and emit the neutron beam N from the beam outlet 400.
  • the neutron generating device 2011 disclosed in this embodiment includes an accelerator and a target material T.
  • the accelerator is used to accelerate protons and generate proton beams P.
  • the proton beams P irradiate the target material T and react with the target material to generate neutrons.
  • the neutrons form a neutron beam N and are emitted from the beam outlet 400.
  • the direction of the neutron beam N shown in Figure 9 does not represent the actual direction of neutron movement, but represents the direction of the overall movement trend of the neutron beam N.
  • Suitable nuclear reactions can be selected based on the required neutron yield and energy, the energy and current of accelerated charged particles that can be provided, the physical and chemical properties of the target material, and other characteristics. The specific structure of the accelerator and the target material will not be described in detail here.
  • the neutron generating device 2011 may have other structures, such as not using an accelerator to generate the neutron source, but may also be in the form of a reactor, an ion source, etc.
  • the radiation therapy particles include but are not limited to neutrons, including but not limited to neutrons, and also include other particle therapy such as protons and heavy ions.
  • the radiation source 201 further includes a beam shaper 2012 for adjusting the beam quality of the neutron beam.
  • the beam shaper 2012 is embedded in the wall 30 of the irradiation room 200 and the preparation room 300 and is used to adjust the beam quality of the neutron beam N.
  • the compensation component 10 and the reference object 20 are operably moved to a preset position by the moving device 50 , and the moving device 50 drives the reference object 20 and the compensation component 10 to move, so as to facilitate the installation of the compensation component 10 on the installation surface 30 .
  • one side of the compensation component 10 is connected to one side of the reference object 20, and the other side of the compensation component 10 is adjustably mounted on the wall 30.
  • the reference object 20 is selected as the mounting back plate of the collimator, and the reference beam outlet 401 is provided on the mounting back plate of the simulated collimator.
  • the mounting back plate of the collimator is a substrate for mounting the collimator or the simulated collimator to the mounting surface 30.
  • One side of the mounting back plate of the simulated collimator is connected to the compensation component 10, and the other side is mounted to the simulated collimator.
  • the simulated collimator is used as a reference to adjust the position of the object to be irradiated 202 when performing simulated positioning in the preparation room.
  • the compensation component 10 can move relative to the simulated collimator and the mounting back plate of the simulated collimator, so that the compensation component 10 matches the unevenness or inclination of the wall 30, avoiding the simulated collimator and the mounting back plate of the simulated collimator being directly installed on the uneven wall 30, and can reduce the error of the connection position between the wall 30 and the simulated collimator and the mounting back plate of the simulated collimator, so that the compensation component 10 can quickly and accurately connect and maintain the simulated collimator, the mounting back plate of the simulated collimator and the reference beam outlet 401 at the preset position of the wall 30.
  • the radiation irradiates the tumor cells in the irradiated object 202, which can achieve accurate irradiation of the irradiated object 202 and minimize the radiation damage to the normal tissues around the tumor cells of the irradiated object 202.
  • the compensation assembly 10 can Adjustment is performed in at least one direction relative to a preset position (such as the mounting surface 30).
  • the movement of the mounting back plate of the simulated collimator relative to the wall 30 can be limited by the locking assembly 40.
  • the first locking member 41 can lock the first compensation unit 11
  • the second locking member 42 can lock the second compensation unit 12.
  • the locking assembly 40 limits the mounting back plate of the simulated collimator in the first and second directions at the same time, preventing the compensation assembly 10 and the reference object 20 mounted on the wall 30 from being offset by external forces, thereby improving the mounting accuracy of the mounting back plate of the simulated collimator and the simulated collimator.
  • the compensation assembly 10 can be adjusted in at least two directions relative to the preset position (such as the mounting surface 30).
  • the preset position such as the mounting surface 30
  • the compensation component 10 can be adjusted in at least two ways relative to a preset position (such as the mounting surface 30), such as movement adjustment of distance in one direction and/or rotation adjustment of angle in the same or different directions.
  • FIG. 11 shows a flow chart of a radiation irradiation method using the above-mentioned radiation irradiation system, the method comprising the following steps:
  • the reference object 20 is held at a preset position by the compensation assembly 10:
  • the reference object 20 can be selected as a mounting back plate of the simulated collimator, one side of the mounting back plate is mounted on the mechanical arm 50, and the other side of the mounting back plate is mounted on the wall 30 through the compensation component 10, and the simulated collimator is mounted on the mounting back plate.
  • This back plate mounting method avoids the mounting back plate being directly mounted on the wall 30, such as when the wall of the preparation room 300 is a non-planar or non-smooth surface, or the mounting back plate is not parallel or does not match the wall of the preset position of the preparation room 300. Therefore, this method reduces the deviation of the mounting position of the mounting back plate to achieve subsequent precise treatment.
  • the object to be irradiated 202 in the preparation room 300 is positioned, and the object to be irradiated 202 is simulated positioned by the preparation room 300 , so as to determine the best irradiation position of the object to be irradiated 202 .
  • the object 202 to be irradiated is maintained at the irradiation position determined above:
  • the object to be irradiated 202 in the irradiation chamber 200 is adjusted to a corresponding position, so as to ensure that the object to be irradiated 202 in the irradiation chamber 200 and the preparation chamber 300 have the same position as much as possible.
  • the radiation source 201 generates radiation, which irradiates the tumor cells in the irradiated object 202 to implement precise treatment while minimizing radiation damage to normal tissues surrounding the tumor cells in the irradiated object 202 .
  • the preset position refers to the position of the object to be treated during simulated irradiation therapy or simulated positioning
  • the irradiation position refers to the position of the object to be treated during radiotherapy
  • the optimal irradiation position refers to the optimal position of the object to be treated during radiotherapy determined by performing simulated irradiation therapy or simulated positioning on the object.
  • the preset position when ensuring that the relative position between the center point of the reference beam outlet 401 and the second reference point is consistent with the relative position between the center point of the beam outlet 400 and the first reference point, that is, when the beam is emitted from the center point of the beam outlet 400, it can be ensured that the object to be irradiated 202 is irradiated more accurately.

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Abstract

La présente demande se rapporte au domaine technique de l'irradiation par rayons radioactifs. L'invention concerne un dispositif de positionnement d'objet de référence et son procédé de positionnement, et un système d'exposition radiographique. Dans les solutions techniques, le dispositif de positionnement d'objet de référence comprend un ensemble de compensation, l'ensemble de compensation étant conçu pour monter et fixer un objet de référence à une surface de montage, un côté de l'ensemble de compensation étant relié à un côté de l'objet de référence, et l'autre côté de l'ensemble de compensation étant monté sur la surface de montage. L'objet de référence est monté sur la surface de montage au moyen de l'ensemble de compensation, la surface de montage peut être une paroi, un bureau ou toute autre surface, la difficulté de montage de montage direct de l'objet de référence sur la surface de montage est réduite grâce à l'ensemble de compensation, et des erreurs de position de l'objet de référence provoquées par une désadaptation ou une irrégularité de la surface de montage peuvent être réduites de façon à mettre en œuvre un traitement précis, ce qui permet également de réduire au minimum les dommages dus au rayonnement aux tissus normaux autour des cellules tumorales à irradier.
PCT/CN2024/089789 2023-04-28 2024-04-25 Dispositif de positionnement d'objet de référence et son procédé de positionnement, et système d'exposition radiographique Pending WO2024222795A1 (fr)

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