Treatment room and method for building a treatment room center

Abstract

The application belongs to the technical field of high-end medical equipment, and discloses a treatment room and a treatment room isocenter construction method, the treatment room isocenter construction method comprising the following steps: step S10, embedding a pre-embedded support on a first base; step S20, setting a reference plate on the pre-embedded support and setting an isocenter; step S30, establishing a second base, a third base, a first mounting plate and a second mounting plate; step S40, setting a first mounting support and a second mounting support; step S50, setting a first rotating support and a second rotating support, and adjusting the midpoint of the connecting line of the first rotating center of the first rotating support and the second rotating center of the second rotating support as the isocenter. By controlling the installation precision of capital construction and various mechanical structures, and controlling the tolerance in a ring-by-ring manner, the tolerance generated in the construction process of the treatment room can be reduced, the precision of the isocenter is improved, and the accuracy of treatment is ensured.

Description

Technical Field

[0001] This invention relates to the field of high-end medical equipment technology, and in particular to treatment rooms and methods for constructing treatment room centers. Background Technology

[0002] Particle therapy is a radiotherapy technique that typically uses proton or heavy ion beams to treat tumors. It offers more precise and effective treatment, improving patients' quality of life. During particle therapy, an accelerator generates a high-energy particle beam, which is focused and irradiates the tumor, killing tumor cells and treating cancer. To ensure the particle beam irradiates the tumor from different angles, the accelerator is mounted on a rotating support, which changes the beam's angle. To avoid damage to healthy cells, the beam's focal point must remain on the tumor throughout the rotation; this focal point is called the isocenter. Higher isocenter precision results in higher treatment accuracy and less damage to healthy cells. Since particle therapy construction involves infrastructure and the installation of various complex mechanical structures, tolerances inevitably arise during construction, affecting the isocenter precision.

[0003] Therefore, ensuring the accuracy of isocenters is an urgent problem that needs to be solved. Summary of the Invention

[0004] The purpose of this invention is to provide a treatment room and a method for constructing a treatment room isocenter, which can reduce the tolerances generated during the construction of the treatment room, thereby ensuring the accuracy of the treatment room isocenter and thus ensuring the precision of the treatment.

[0005] The objective of this invention is achieved through the following technical solution:

[0006] This invention provides a method for constructing treatment rooms and other similar centers, comprising:

[0007] Step S10: Provide a first base, on which a pre-embedded support is embedded, the first base forming the floor of the treatment room, and the pre-embedded support having a through hole to provide clearance space for the treatment head;

[0008] Step S20: A reference plate is set on the through hole of the pre-embedded support in step S10, and an isocenter is set above the reference plate by an optical measuring instrument. The coordinates of the isocenter are (0, 0, 0).

[0009] Step S30: In step S10, a second base and a third base are respectively built on both sides of the first base, and a first mounting plate and a second mounting plate are respectively placed on the second base and the third base;

[0010] Step S40: A first mounting bracket and a second mounting bracket are respectively provided on the first mounting plate and the second mounting plate in step S30;

[0011] Step S50: A first rotating support and a second rotating support are respectively set on the first mounting support and the second mounting support in step S40. The coordinates of the first rotation center of the first rotating support are adjusted to (0, B, 0), and the coordinates of the second rotation center of the second rotating support are adjusted to (0, -B, 0). The midpoint of the line connecting the first rotation center of the first rotating support and the second rotation center of the second rotating support is the isocenter. The Z direction is consistent with the direction of gravity, the Y direction is consistent with the direction of the line connecting the first rotation center of the first rotating support and the second rotation center of the second rotating support, and the X direction is perpendicular to the Y direction and the Z direction, respectively.

[0012] Preferably, step S10 includes:

[0013] Step S11: In the Y direction, the pre-embedded support is adjusted to the middle position of the first base using the optical measuring instrument, and the plane where the pre-embedded support is located is adjusted to be perpendicular to the direction of gravity;

[0014] Step S12: Embed the pre-embedded support in the first base.

[0015] Preferably, step S20 includes:

[0016] Step S21: Place the reference plate on the through hole of the pre-embedded support;

[0017] Step S22: The first adjustment component is set on the pre-embedded support. The first adjustment component is used to adjust the position of the reference plate in the X, Y and Z directions. The reference plate is adjusted to the middle position of the first base in the Y direction by the optical measuring instrument, and the plane where the reference plate is located is adjusted to be perpendicular to the direction of gravity.

[0018] Step S23: Establish a reference coordinate system on the reference plate and determine the first origin using an optical measuring instrument;

[0019] Step S24: Determine the second origin by offsetting a distance A directly upward from the first origin using the optical measuring instrument. The second origin is an isocenter, and the coordinates of the isocenter are (0, 0, 0).

[0020] Preferably, step S50 includes:

[0021] Step S51: The first rotating support and the second rotating support are respectively disposed on the first mounting support and the second mounting support;

[0022] Step S52: A second adjustment component is provided on the first mounting plate. The second adjustment component is used to adjust the position of the first mounting support in the X, Y, and Z directions. The first mounting support drives the first rotating support to move. The coordinates of the rotation center of the first rotating support are adjusted to (0, B, 0) by the optical measuring instrument. A third adjustment component is provided on the second mounting plate. The third adjustment component is used to adjust the position of the second mounting support in the X, Y, and Z directions. The second mounting support drives the second rotating support to move. The coordinates of the rotation center of the second rotating support are adjusted to (0, -B, 0) by the optical measuring instrument.

[0023] Preferably, the first mounting plate is provided with a first reinforcing structure on the side facing the second base, and the first reinforcing structure is embedded in the second base;

[0024] The second mounting plate has a second reinforcing structure on the side facing the third base, and the second reinforcing structure is embedded in the third base.

[0025] Preferably, step S50 further includes: restoring the isocenter;

[0026] Restoring the isocenters includes:

[0027] The first rotation center of the first rotating support is determined by the optical measuring instrument, and the second rotation center of the second rotating support is determined by the optical measuring instrument. The midpoint of the line connecting the first rotation center of the first rotating support and the second rotation center of the second rotating support is the isocenter.

[0028] Preferably, the first rotating support includes a first slewing bearing, and a first recovery fixture is provided on the inner side of the first slewing bearing. The first recovery fixture is rotated along the inner side of the first slewing bearing, and the rotation trajectory of the first recovery fixture is obtained by the optical measuring instrument. The center of the rotation trajectory of the first recovery fixture is the first rotation center of the first rotating support.

[0029] The second rotating support includes a second slewing bearing, and a second recovery fixture is provided on the inner side of the second slewing bearing. The second recovery fixture is rotated along the inner side of the second slewing bearing, and the rotation trajectory of the second recovery fixture is obtained by the optical measuring instrument. The center of the rotation trajectory of the second recovery fixture is the second rotation center of the second rotating support.

[0030] Preferably, after step S50, the method further includes:

[0031] Step S60: Install the rotating support onto the first rotating support and the second rotating support in step S50, and install the particle accelerator of the treatment device onto the rotating support.

[0032] Preferably, step S60 further includes: verifying the isocenter;

[0033] Verification of the isocenters includes:

[0034] A verification fixture is set on the treatment head of the treatment device or on the rotating support. The verification fixture is adjusted to coincide with the isocenter. The initial coordinates of the verification fixture are (0, 0, 0). The rotating support is rotated, which in turn rotates the verification fixture. At the same time, the real-time coordinates of the verification fixture are measured by the optical measuring instrument. If the real-time coordinates of the verification fixture remain unchanged or change within the tolerance range, it indicates that the accuracy of the isocenter meets the design requirements. If the real-time coordinates of the verification fixture change beyond the tolerance range, it indicates that the accuracy of the isocenter does not meet the design requirements.

[0035] Preferably, the optical measuring instrument is a laser tracker or a theodolite.

[0036] A treatment room is provided, wherein a particle therapy device is installed in the treatment room, and the treatment room is provided with an isocenter. The isocenter is established by the treatment room isocenter construction method described in any one of the above. The particle therapy device is provided with a treatment gantry, a particle accelerator, a scanning magnet, an ionization chamber, and a range adjuster. The particle accelerator is installed on the treatment gantry and can rotate with the treatment gantry.

[0037] Preferably, the treatment frame includes a first rotating arm, a second rotating arm, and a connecting arm. The first rotating arm and the second rotating arm are parallel to each other, and the first rotating arm and the second rotating arm are respectively disposed at both ends of the connecting arm.

[0038] The treatment room and the method for constructing treatment room centers of the present invention have at least the following advantages:

[0039] The treatment room and its isocenter construction method of the present invention, by controlling the installation precision of the infrastructure and various mechanical structures, and controlling the tolerances step by step, can reduce the tolerances generated during the construction of the treatment room, thereby ensuring the precision of the isocenter and thus ensuring the accuracy of the treatment. Attached Figure Description

[0040] Figure 1 This is a schematic diagram of the treatment room in an embodiment of the present invention when the rotating support is not installed.

[0041] Figure 2 yes Figure 1 A magnified view of a portion of point A in the middle.

[0042] Figure 3 yes Figure 1 A magnified view of a section at point B in the middle.

[0043] Figure 4 This is a schematic diagram of the structure of the treatment room when the rotating support is installed according to an embodiment of the present invention.

[0044] Figure 5 This is a schematic diagram of the first mounting plate and the first reinforcing structure in an embodiment of the present invention.

[0045] Figure 6 This is a flowchart of a method for constructing treatment rooms and other centers according to an embodiment of the present invention.

[0046] In the diagram: 100, Treatment room; 1, First base; 2, Embedded support; 21, Through hole; 22, First adjustment component; 3, Reference plate; 4, Second base; 41, First mounting plate; 411, First reinforcing structure; 42, First mounting support; 43, Second adjustment component; 5, Third base; 51, Second mounting plate; 52, Second mounting support; 53, Third adjustment component; 6, First rotating support; 61, First base plate; 62, First side plate; 63, First slewing bearing; 64, First recovery fixture; 7, Second rotating support; 71, Second base plate; 72, Second side plate; 8, Rotating bracket; 81, First rotating arm; 82, Second rotating arm; 83, Connecting arm; 831, Mounting part; 200, Optical measuring instrument. Detailed Implementation

[0047] Exemplary embodiments will now be described more fully with reference to the accompanying drawings. However, these exemplary embodiments can be implemented in many forms and should not be construed as limited to the embodiments set forth herein; rather, they are provided to make the invention more comprehensive and complete, and to fully convey the concept of the exemplary embodiments to those skilled in the art. The same reference numerals in the drawings denote the same or similar structures, and therefore repeated descriptions of them will be omitted.

[0048] The terms used to express position and direction in this invention are illustrated with reference to the accompanying drawings, but changes can be made as needed, and all such changes are included within the scope of protection of this invention.

[0049] Reference Figure 6 The present invention provides a method for constructing treatment rooms and other centers, including: steps S10-S50.

[0050] Step S10: Provide a first base 1, on which a pre-embedded support 2 is embedded.

[0051] Specifically, step S10 may include: steps S11-S12.

[0052] Step S11: Refer to Figure 1 , Figure 3 , Figure 4 A first base 1 is provided, which can be a building constructed of materials such as concrete. The first base 1 forms the floor of the treatment room 100. During the construction of the first base 1, a pre-embedded support 2 is placed on the first base 1. The pre-embedded support 2 has through holes 21 that provide space for the treatment head. In the Y direction, the pre-embedded support 2 is adjusted to the middle position of the first base 1 using an optical measuring instrument 200, and the plane on which the pre-embedded support 2 is located is adjusted to be perpendicular to the direction of gravity. The pre-embedded support 2 is generally flat and preferably made of a rigid material, such as a steel plate or ceramic plate. The pre-embedded support 2 has high structural strength and is not easily deformed. The optical measuring instrument 200 is preferably a laser tracker or a theodolite. Both laser trackers and theodolites can monitor and track the target position, movement trajectory, and other information in real time.

[0053] Step S12: After adjusting the position of the pre-embedded support 2, embed the pre-embedded support 2 in the first base 1, and at least part of the pre-embedded support 2 is exposed from the first base 1.

[0054] Step S20: Set a reference plate 3 on the through hole 21 of the pre-embedded support 2 in step S10, and set an isocenter above the reference plate 3 using an optical measuring instrument 200. The coordinates of the isocenter are (0, 0, 0).

[0055] Specifically, step S20 may include steps S21-S24.

[0056] Step S21: Refer to Figure 1 , Figure 3 , Figure 4 A reference plate 3 is provided, which is set on the through hole 21 of the pre-embedded support 2. The reference plate 3 and the pre-embedded support 2 can be pre-fixed by a first connector, such as a screw. The reference plate 3 is generally flat, and the material of the reference plate 3 is preferably a rigid material, such as a steel plate or a ceramic plate. The reference plate 3 has high structural strength and is not easily deformed.

[0057] Step S22: The first adjustment component 22 is set on the pre-embedded support 2. The first adjustment component 22 is used to adjust the position of the reference plate 3 in the X, Y and Z directions. The reference plate 3 can be set with a reference point. The reference plate 3 is adjusted to the middle position of the first base 1 in the Y direction by measuring with the optical measuring instrument 200, that is, the reference point is adjusted to the middle position of the first base 1 in the Y direction, and the plane on which the reference plate 3 is located is adjusted to be perpendicular to the direction of gravity.

[0058] Specifically, the distance from the four edges of the reference plate 3 to the embedded support 2 is adjusted by the first adjustment component 22 to be equal to a preset distance, so that the reference plate 3 is located in the middle position of the embedded support 2, that is, the reference plate 3 is located in the preset position of the embedded support 2, thereby making the reference point located in the preset position of the embedded support 2. At least three points are taken on the reference plate 3. In this embodiment, four points are taken on the reference plate 3, and the four points are distributed in a square. Target balls are placed at the four points. The Z-coordinate of the center of the target ball at the four positions is detected by the optical measuring instrument 200, and the Z-coordinate of the target ball at the four positions is made the same or approximately the same by the first adjustment component 22, so that the plane on which the reference plate 3 is located is adjusted to be perpendicular to the direction of gravity. In this embodiment, the flatness of the plane on which the reference plate 3 is located is preferably within ±0.1mm.

[0059] Step S23: Establish a reference coordinate system on the reference plate 3 using the optical measuring instrument 200 and determine the first origin, which is located at the reference point. Specifically, refer to... Figure 3 Multiple acquisition points are set around the reference point of the reference plate 3. Four acquisition points, A1, B1, C1, and D1, are selected. The distances of these four acquisition points from the reference point are equal. An optical measuring instrument 200 fits A1, B1, C1, and D1 to form a plane. A1 and B1 are connected to form the X-axis, and C1 and D1 are connected to form the Y-axis. The X-axis and Y-axis are perpendicular to each other and intersect at the reference point. A target ball is placed at the reference point. The optical measuring instrument 200 detects the Z-coordinate of the target ball's center and fits the Z-axis, which is aligned with the direction of gravity. Thus, a reference coordinate system is established on the reference plate 3, and the first origin is determined, located at the reference point.

[0060] Step S24: Using the optical measuring instrument 200, the second origin is determined by shifting the entire reference coordinate system upwards by a distance A. The value of A can be set according to actual needs. The second origin is an isocenter with coordinates (0, 0, 0). In other words, the second origin is determined by shifting the line connecting A1 and B1 and the line connecting C1 and D1 upwards by a distance A. The value of A can be set according to actual needs. The second origin is an isocenter with coordinates (0, 0, 0).

[0061] Step S30: A second base 4 and a third base 5 are respectively built on both sides of the first base 1 in step S10, and the first mounting plate 41 and the second mounting plate 51 are respectively placed on the second base 4 and the third base 5.

[0062] Specifically, refer to Figure 1 , Figure 4The second base 4 and the third base 5 are generally rectangular parallelepipeds. The second base 4 and the third base 5 can be a type of structure, constructed from materials such as concrete. Before constructing the second base 4 and the third base 5, their positions can be determined using an optical measuring instrument 200, and then constructed according to requirements. The distances from the second base 4 and the third base 5 to the first base 1 are equal or approximately equal, and the heights of the second base 4 and the third base 5 are set according to actual needs. Preferably, the structures of the components on the second base 4 (such as the first mounting plate 41 and the first rotating support 6) and the components on the third base 5 (such as the second mounting plate 51 and the second rotating support 7) can be symmetrical with respect to the Z-direction passing through the equicenter; that is, the structures of the first mounting plate 41 and the second mounting plate 51 are symmetrical, and the structures of the first rotating support 6 and the second rotating support 7 are symmetrical.

[0063] Reference Figure 1 , Figure 2 , Figure 4 During the construction of the second base 4 and the third base 5, the first mounting plate 41 and the second mounting plate 51 are respectively installed on the second base 4 and the third base 5. The first mounting plate 41 and the second mounting plate 51 are respectively positioned on the top of the second base 4 and the top of the third base 5. Using an optical measuring instrument 200, it is ensured that all points on the surface of the first mounting plate 41 are on the same horizontal plane and perpendicular to the direction of gravity, and all points on the surface of the second mounting plate 51 are on the same horizontal plane. The first mounting plate 41 and the second mounting plate 51 are fixedly connected to the second base 4 and the third base 5, respectively.

[0064] As a preferred method, refer to Figure 5 A first reinforcing structure 411 may be provided on the side of the first mounting plate 4 facing the second base 4, and the first reinforcing structure 411 is embedded in the second base 4. A second reinforcing structure (not shown) may be provided on the side of the second mounting plate 51 facing the third base 5, and the second reinforcing structure is embedded in the third base 5. The first reinforcing structure 411 and the second reinforcing structure can enhance the structural strength of the second base 4 and the third base 5, ensuring that the treatment equipment can operate stably and safely. The first reinforcing structure 411 and the second reinforcing structure are, for example, steel bars.

[0065] Step S40: A first mounting bracket 42 and a second mounting bracket 52 are respectively provided on the first mounting plate 41 and the second mounting plate 51 in step S30.

[0066] Specifically, refer to Figure 1 , Figure 2 , Figure 4 The system provides a first mounting bracket 42 and a second mounting bracket 52. A second adjustment component 43 is provided on the first mounting plate 41, connecting the first mounting bracket 42 and the first mounting plate 41. The second adjustment component 43 can adjust the position of the first mounting bracket 42 in the X, Y, and Z directions. Using an optical measuring instrument 200, the height of the first mounting bracket 42 is adjusted to a preset position, and the plane containing the first mounting bracket 42 is adjusted to be perpendicular to the direction of gravity. A third adjustment component 53 is provided on the second mounting plate 51, connecting the second mounting bracket 52 and the second mounting plate 51. The third adjustment component 53 can adjust the position of the second mounting bracket 52 in the X, Y, and Z directions. Using an optical measuring instrument 200, the height of the second mounting bracket 52 is adjusted to a preset position, and the plane containing the second mounting bracket 52 is adjusted to be perpendicular to the direction of gravity. The heights of the first mounting bracket 42 and the second mounting bracket 52 are the same or approximately the same.

[0067] Step S50: A first rotating support 6 and a second rotating support 7 are respectively set on the first mounting plate 41 and the second mounting plate 51 in step S40. The coordinates of the first rotation center of the first rotating support 6 are adjusted to (0, B, 0), and the coordinates of the second rotation center of the second rotating support 7 are adjusted to (0, -B, 0). The midpoint of the line connecting the first rotation center of the first rotating support 6 and the second rotation center of the second rotating support 7 is an isocenter. The Z direction is consistent with the direction of gravity, the Y direction is consistent with the direction of the line connecting the first rotation center of the first rotating support 6 and the second rotation center of the second rotating support 7, and the X direction is perpendicular to the Y direction and the Z direction, respectively.

[0068] Specifically, step S50 may include: steps S51-S52.

[0069] Step S51: Refer to Figure 4 A first rotating support 6 and a second rotating support 7 are provided. The first rotating support 6 and the second rotating support 7 are respectively disposed on the first mounting support 42 and the second mounting support 52. The first rotating support 6 and the second rotating support 7 can be fixed to the first mounting plate 41 and the second mounting plate 51 respectively by the second connector.

[0070] Step S52: A second adjustment component 43 can be provided on the first mounting plate 41. The second adjustment component 43 is used to adjust the position of the first mounting support 42 in the X, Y, and Z directions. The second adjustment component 43 can adopt a known structure that cooperates with a sliding rail and a lifting mechanism. The first mounting support 42 drives the first rotating support 6 to move. The coordinates of the rotation center of the first rotating support 6 are adjusted to (0, B, 0) by measuring with an optical measuring instrument 200. A third adjustment component 53 can be provided on the second mounting plate 51. The third adjustment component 53 is used to adjust the position of the second mounting support 52 in the X, Y, and Z directions. The third adjustment component 53 can adopt a known structure that cooperates with a sliding rail and a lifting mechanism. The structure can be the same as or similar to the second adjustment component 43. The second mounting support 52 drives the second rotating support 7 to move. The coordinates of the rotation center of the second rotating support 7 are adjusted to (0, -B, 0) by measuring with an optical measuring instrument 200. The value of B can be set according to actual needs. This ensures that the rotation center of the first rotating support 6 and the rotation center of the second rotating support 7 are on the same straight line, and the midpoint of the line connecting the rotation centers of the first rotating support 6 and the rotation centers of the second rotating support 7 is an isocenter.

[0071] In some embodiments, a fourth adjustment component (not shown) may also be provided on the first mounting support 42. The first mounting support 42 and the first rotating support 6 are connected by the fourth adjustment component. The fourth adjustment component can also adjust the position of the first rotating support 6 in the X, Y, and Z directions. The coordinates of the rotation center of the first rotating support 6 are adjusted to (0, B, 0) by measurement using the optical measuring instrument 200. A fifth adjustment component (not shown) may also be provided on the second mounting support 52. The second mounting support 52 and the second rotating support 7 are connected by the fifth adjustment component. The fifth adjustment component can also adjust the position of the second rotating support 7 in the X, Y, and Z directions. The coordinates of the rotation center of the second rotating support 7 are adjusted to (0, B, 0) by measurement using the optical measuring instrument 200. The fourth and fifth adjustment components can adopt a known structure that cooperates with a slide rail and a lifting mechanism.

[0072] In this embodiment, refer to Figure 1 , Figure 2 , Figure 4The first rotating support 6 may include a first base plate 61 and a first side plate 62. The first base plate 61 is disposed on the first mounting plate 41, and the first base plate 61 and the first side plate 62 are arranged perpendicularly to ensure that the first side plate 62 is parallel to the direction of gravity. The second adjusting component 43 can adjust the position of the first base plate 61 in the X, Y, and Z directions. The first base plate 61 drives the first side plate 62 to move, and the rotation center of the first rotating support 6 is located at the first side plate 62. The second rotating support 7 may include a second base plate 71 and a second side plate 72. The second base plate 71 is disposed on the second mounting plate 51, and the second base plate 71 and the second side plate 72 are arranged perpendicularly to ensure that the second side plate 72 is parallel to the direction of gravity. The third adjusting component 53 can adjust the position of the second base plate 71 in the X, Y, and Z directions. The second base plate 71 drives the second side plate 72 to move, and the rotation center of the second rotating support 7 is located at the second side plate 72.

[0073] As a preferred embodiment, step S50 may further include: peer center recovery. Peer center recovery serves two purposes: firstly, it verifies the peer centers to confirm their accuracy; secondly, if a peer center is lost, peer center recovery allows for the re-determination of the peer center.

[0074] Reference Figure 1 , Figure 2 The isocenter is restored by: establishing a circle on the first rotating support 6 using the optical measuring instrument 200 and determining its center, i.e., determining the first rotation center of the first rotating support 6 using the optical measuring instrument 200. Similarly, establishing a circle on the second rotating support 7 using the optical measuring instrument 200 and determining its center, i.e., determining the second rotation center of the second rotating support 7 using the optical measuring instrument 200. The midpoint of the line connecting the first rotation center of the first rotating support 6 and the second rotation center of the second rotating support 7 is the isocenter.

[0075] In this embodiment, specifically, the first rotating support 6 may include a first slewing bearing 63, which may be disposed on the first side plate 62. A first recovery fixture 64 is disposed on the inner side of the first slewing bearing 63. The first recovery fixture 64 is rotated along the inner side of the first slewing bearing 63, and the rotation trajectory of the first recovery fixture 64 is obtained by the optical measuring instrument 200. The center of the rotation trajectory of the first recovery fixture 64 is the first rotation center of the first rotating support 6. The second rotating support 7 may include a second slewing bearing (not shown), which may be disposed on the second side plate 72. A second recovery fixture (not shown) is disposed on the inner side of the second slewing bearing. The second recovery fixture is rotated along the inner side of the second slewing bearing, and the rotation trajectory of the second recovery fixture is obtained by the optical measuring instrument 200. The center of the rotation trajectory of the second recovery fixture is the second rotation center of the second rotating support 7.

[0076] The first recovery fixture 64 and the second recovery fixture have the same structure and dimensions. For example, the first recovery fixture 64 and the second recovery fixture are fixtures with a target ball. The target ball can rotate along the inner side of the first slewing bearing 63 and the inner side of the second slewing bearing. The motion trajectory of the target ball is obtained by the optical measuring instrument 200. More precisely, the motion trajectory of the center of the target ball is obtained by the optical measuring instrument 200.

[0077] As a preferred embodiment, step S50 may be followed by step S60.

[0078] Step S60: Install the rotating support 8 onto the first rotating support 6 and the second rotating support 7 from step S50, and install the particle accelerator (not shown) of the treatment device onto the rotating support 8. The rotating support 8 can rotate relative to the first rotating support 6 and the second rotating support 7, and the rotation axis of the rotating support 8 coincides with the line connecting the first rotation center of the first rotating support 6 and the second rotation center of the second rotating support 7. The rotating support 8 can also be referred to as a rotating gantry.

[0079] Specifically, refer to Figure 4 The rotating support 8 is generally U-shaped and may include a first rotating arm 81, a second rotating arm 82, and a connecting arm 83. The first rotating arm 81 and the second rotating arm 82 are parallel to each other and are respectively disposed at both ends of the connecting arm 83, and are respectively perpendicular to the connecting arm 83. The end of the first rotating arm 81 away from the connecting arm 83 is connected to the first rotating support 6, and the end of the second rotating arm 82 away from the connecting arm 83 is connected to the second rotating support 7. In this embodiment, the first rotating arm is parallel to the first side plate 62 and rotatably connected to the first slewing bearing 63, and the second rotating arm is parallel to the second side plate 72 and rotatably connected to the second slewing bearing. In some embodiments, the connecting arm 83 may be configured as a two-segment structure with intervals, and the two segments of the connecting arm 83 are connected together by a fixedly mounted particle accelerator.

[0080] The particle accelerator of the treatment device can be mounted on the connecting arm 83, preferably at the middle position of the connecting arm 83. In some embodiments, a mounting part 831 can be provided near the middle of the connecting arm 83, and the treatment device can be mounted on the mounting part 831. Further, the particle accelerator can be a proton accelerator or a heavy ion accelerator, and a treatment head (not shown) can also be provided on the particle accelerator. The particle beam of the particle accelerator can be focused or the range of the particle beam can be adjusted through the treatment head so that the particle beam is focused to the isocenter.

[0081] As a preferred embodiment, step S60 may further include: verifying the isocenter to ensure the accuracy of the isocenter position.

[0082] Specifically, the isocenter is verified, including: setting a verification fixture (not shown) on the treatment head of the treatment device or on the rotating support 8. The verification fixture is, for example, a fixture with a target ball. The verification fixture is adjusted to a position that coincides with the isocenter, that is, the center of the target ball is adjusted to a position that coincides with the isocenter. The initial coordinates of the center of the target ball are (0, 0, 0). The rotating support 8 is rotated, which drives the verification fixture to rotate. At the same time, the real-time coordinates of the verification fixture are measured by the optical measuring instrument 200. That is, the optical measuring instrument 200 can obtain the real-time coordinates of the center of the target ball. If the real-time coordinates of the center of the target ball remain unchanged or change within the tolerance range, it means that the accuracy of the isocenter meets the design requirements. If the real-time coordinates of the center of the target ball change beyond the tolerance range, it means that the accuracy of the isocenter does not meet the design requirements.

[0083] In this application, by controlling the installation precision of infrastructure and various mechanical structures, and controlling the tolerances step by step, the tolerances generated during the construction of the treatment room 100 can be reduced, thereby improving the accuracy of the isocenter, ensuring the precision of treatment, and guaranteeing the treatment effect.

[0084] Restoring the peer center serves two purposes: firstly, it verifies the peer center to confirm its accuracy; secondly, if a peer center is lost, restoring it allows for the re-determination of the peer center.

[0085] Verification of isocenters not only ensures that their accuracy meets design requirements, but also allows for timely detection of isocenter deviations through regular verification, ensuring that the isocenter position remains precise and thus guaranteeing treatment accuracy and effectiveness.

[0086] This invention also provides a particle radiotherapy chamber 100, which is equipped with treatment equipment and has an isocenter determined by the aforementioned treatment chamber isocenter construction method. The treatment chamber 100 also includes a treatment bed (not shown) for supporting the patient. The treatment equipment can be a radiotherapy device, including a treatment gantry, a particle accelerator (not shown), a scanning magnet (not shown), an ionization chamber (not shown), and a range adjuster (not shown). The radiotherapy device is configured without a beam transmission line. The proton accelerator is mounted on the treatment gantry and can rotate with the treatment gantry; the treatment gantry can also be called a rotating gantry. In some possible embodiments, the radiotherapy device is a proton therapy device, the particle accelerator can be a proton accelerator, the particle beam can be a proton beam, and the flowing particle beam is simply referred to as a particle beam, which can be a proton beam. A particle beam delivery system is used to deliver particle beams from a particle accelerator to the patient. Controlled by a magnetic field, the system precisely delivers the particle beam to the treatment location, ensuring accurate positioning and delivery. The system includes components along the beam's path, such as a scanning magnet, an ionization chamber, and an adaptive aperture. The scanning magnet allows the particle beam to move in the X and / or Y directions by appropriately altering the magnetic field, with the X and Y directions perpendicular to each other. The ionization chamber is used to measure the beam dose and / or position. The adaptive aperture can also form an adaptive aperture, adjusting itself according to the shape and size of the target area, matching the shape and size of the particle beam to the tumor morphology. This adaptive irradiation offers the advantage of better adapting to irregularly shaped tumors, improving the personalization and targeting of irradiation planning. The combination of components such as the scanning magnet, ionization chamber, range shifter, and adaptive aperture enables precise and flexible radiotherapy for patients.

[0087] The particle accelerator is mounted on the treatment gantry and rotates with it. This integrated design reduces the complexity of the equipment because it eliminates the need for beam transmission lines, thus simplifying the equipment's structure. This also improves beam stability, as beam transmission lines inevitably introduce factors that cause instability. Radiotherapy equipment does not require beam transmission lines, thereby reducing maintenance costs and failure rates, and improving the equipment's stability and reliability. The reduction in the introduction of instability factors makes the beam movement more stable, which helps maintain the stability of the particle beam and ensures precise irradiation.

[0088] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the invention without departing from the principles and spirit of the invention, and all such changes should fall within the protection scope of the claims of the present invention.

Claims

1. A method for constructing treatment rooms and other similar centers, characterized in that, include: Step S10: Provide a first base, on which a pre-embedded support is embedded, the first base forming the floor of the treatment room, and the pre-embedded support having a through hole to provide clearance space for the treatment head; Step S20: A reference plate is set on the through hole of the pre-embedded support in step S10, and an isocenter is set above the reference plate by an optical measuring instrument. The coordinates of the isocenter are (0, 0, 0). Step S30: In step S10, a second base and a third base are respectively built on both sides of the first base, and a first mounting plate and a second mounting plate are respectively placed on the second base and the third base; Step S40: A first mounting bracket and a second mounting bracket are respectively provided on the first mounting plate and the second mounting plate in step S30; Step S50: A first rotating support and a second rotating support are respectively set on the first mounting support and the second mounting support in step S40. The coordinates of the first rotation center of the first rotating support are adjusted to (0, B, 0), and the coordinates of the second rotation center of the second rotating support are adjusted to (0, -B, 0). The midpoint of the line connecting the first rotation center of the first rotating support and the second rotation center of the second rotating support is the isocenter. The Z direction is consistent with the direction of gravity, the Y direction is consistent with the direction of the line connecting the first rotation center of the first rotating support and the second rotation center of the second rotating support, and the X direction is perpendicular to the Y direction and the Z direction, respectively. Step S60: Install the rotating support onto the first rotating support and the second rotating support in step S50, and install the particle accelerator of the treatment device onto the rotating support; Step S50 includes: Step S51: The first rotating support and the second rotating support are respectively disposed on the first mounting support and the second mounting support; Step S52: A second adjustment component is provided on the first mounting plate. The second adjustment component is used to adjust the position of the first mounting support in the X, Y, and Z directions. The first mounting support drives the first rotating support to move. The coordinates of the rotation center of the first rotating support are adjusted to (0, B, 0) by the optical measuring instrument. A third adjustment component is provided on the second mounting plate. The third adjustment component is used to adjust the position of the second mounting support in the X, Y, and Z directions. The second mounting support drives the second rotating support to move. The coordinates of the rotation center of the second rotating support are adjusted to (0, -B, 0) by the optical measuring instrument.

2. The method for constructing treatment rooms and other centers according to claim 1, characterized in that, Step S10 includes: Step S11: In the Y direction, the pre-embedded support is adjusted to the middle position of the first base using the optical measuring instrument, and the plane where the pre-embedded support is located is adjusted to be perpendicular to the direction of gravity; Step S12: Embed the pre-embedded support in the first base.

3. The method for constructing treatment rooms and other centers according to claim 1, characterized in that, Step S20 includes: Step S21: Place the reference plate on the through hole of the pre-embedded support; Step S22: The pre-embedded support is provided with a first adjustment component. The first adjustment component is used to adjust the position of the reference plate in the X, Y and Z directions. The reference plate is adjusted to the middle position of the first base in the Y direction by the optical measuring instrument, and the plane where the reference plate is located is adjusted to be perpendicular to the direction of gravity. Step S23: Establish a reference coordinate system on the reference plate and determine the first origin using an optical measuring instrument; Step S24: Determine the second origin by offsetting a distance A directly upward from the first origin using the optical measuring instrument. The second origin is an isocenter, and the coordinates of the isocenter are (0, 0, 0).

4. The method for constructing treatment rooms and other centers according to claim 1, characterized in that, The first mounting plate has a first reinforcing structure on the side facing the second base, and the first reinforcing structure is embedded in the second base; The second mounting plate has a second reinforcing structure on the side facing the third base, and the second reinforcing structure is embedded in the third base.

5. The method for constructing treatment rooms and other centers according to claim 1, characterized in that, Step S50 further includes: restoring the isocenters; Restoring the isocenters includes: The first rotation center of the first rotating support is determined by the optical measuring instrument, and the second rotation center of the second rotating support is determined by the optical measuring instrument. The midpoint of the line connecting the first rotation center of the first rotating support and the second rotation center of the second rotating support is the isocenter.

6. The method for constructing treatment rooms and other centers according to claim 5, characterized in that, The first rotating support includes a first slewing bearing, and a first recovery fixture is provided on the inner side of the first slewing bearing. The first recovery fixture is rotated along the inner side of the first slewing bearing, and the rotation trajectory of the first recovery fixture is obtained by the optical measuring instrument. The center of the rotation trajectory of the first recovery fixture is the first rotation center of the first rotating support. The second rotating support includes a second slewing bearing, and a second recovery fixture is provided on the inner side of the second slewing bearing. The second recovery fixture is rotated along the inner side of the second slewing bearing, and the rotation trajectory of the second recovery fixture is obtained by the optical measuring instrument. The center of the rotation trajectory of the second recovery fixture is the second rotation center of the second rotating support.

7. The method for constructing treatment rooms and other centers according to claim 1, characterized in that, Step S60 further includes: verifying the isocenter; Verification of the isocenters includes: A verification fixture is set on the treatment head of the treatment device or on the rotating support. The verification fixture is adjusted to coincide with the isocenter. The initial coordinates of the verification fixture are (0, 0, 0). The rotating support is rotated, which in turn rotates the verification fixture. At the same time, the real-time coordinates of the verification fixture are measured by the optical measuring instrument. If the real-time coordinates of the verification fixture remain unchanged or change within the tolerance range, it indicates that the accuracy of the isocenter meets the design requirements. If the real-time coordinates of the verification fixture change beyond the tolerance range, it indicates that the accuracy of the isocenter does not meet the design requirements.

8. The method for constructing treatment rooms and other centers according to claim 1, characterized in that, The optical measuring instrument used is either a laser tracker or a theodolite.

9. A treatment room, characterized in that, The treatment room is equipped with particle therapy equipment and has an isocenter. The isocenter is established using the treatment room isocenter construction method as described in any one of claims 1-8. The particle therapy equipment includes a treatment gantry, a particle accelerator, a scanning magnet, an ionization chamber, and a range adjuster. The particle accelerator is mounted on the treatment gantry and can rotate with the treatment gantry.

10. The treatment room according to claim 9, characterized in that, The treatment frame includes a first rotating arm, a second rotating arm, and a connecting arm. The first rotating arm and the second rotating arm are parallel to each other and are respectively located at both ends of the connecting arm.

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