CN106310528B - A kind of therapeutic equipment - Google Patents
A kind of therapeutic equipment Download PDFInfo
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- CN106310528B CN106310528B CN201610682410.8A CN201610682410A CN106310528B CN 106310528 B CN106310528 B CN 106310528B CN 201610682410 A CN201610682410 A CN 201610682410A CN 106310528 B CN106310528 B CN 106310528B
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- 230000001225 therapeutic effect Effects 0.000 title claims abstract description 20
- 230000005855 radiation Effects 0.000 claims abstract description 124
- 238000003384 imaging method Methods 0.000 claims description 107
- 238000001959 radiotherapy Methods 0.000 abstract description 2
- 230000004886 head movement Effects 0.000 abstract 1
- 206010028980 Neoplasm Diseases 0.000 description 13
- 230000003902 lesion Effects 0.000 description 13
- 238000002560 therapeutic procedure Methods 0.000 description 9
- 238000010586 diagram Methods 0.000 description 8
- 238000000034 method Methods 0.000 description 7
- 238000012795 verification Methods 0.000 description 3
- 238000001514 detection method Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000000523 sample Substances 0.000 description 2
- 230000005469 synchrotron radiation Effects 0.000 description 2
- GUTLYIVDDKVIGB-OUBTZVSYSA-N Cobalt-60 Chemical compound [60Co] GUTLYIVDDKVIGB-OUBTZVSYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 230000001678 irradiating effect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000002203 pretreatment Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N5/00—Radiation therapy
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- Biomedical Technology (AREA)
- Pathology (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Radiology & Medical Imaging (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Radiation-Therapy Devices (AREA)
Abstract
The present invention discloses a kind of therapeutic equipment, is related to radiotherapy instrument field, to reduce the quantity of detector.A kind of therapeutic equipment includes：At least two ray heads and at least one detector, wherein, at least one of described detector is mobile detector, and the mobile detector can ray head movement relatively, with opposite at least two positions in the ray head, to receive the radiation beam that ray hair goes out.
Description
Technical Field
The invention relates to the field of radiotherapy instruments, in particular to treatment equipment.
Background
The core components of the existing therapeutic equipment are shown in fig. 1, and include a treatment head 900 and a first detector 901 corresponding to the treatment head 900, and an image guiding device, which includes an imaging head 902 and a second detector 903 corresponding to the imaging head. Wherein the treatment head 900 emits radiation of therapeutic energy for tumor irradiation. The primary function of the first detector 901 is to detect whether the radiation dose delivered by the treatment head 900 matches the patient's treatment plan. The image-guided apparatus is used for therapeutic pre-positioning or real-time positioning of a patient during treatment, wherein the primary function of the second detector 903 is to detect x-rays emitted by the imaging head 902 and passing through the patient, thereby imaging the tumor-related region. The treatment device comprises a frame 904, and the treatment head 900, the first detector 901, the imaging head 902 and the second detector 903 are generally fixed inside the frame 904, and as shown in fig. 1, the treatment head 900 and the imaging head 902 can rotate around the circumference of the human body through the rotation of the frame 904, so as to realize the respective functions.
The use of multiple detectors increases equipment costs due to the expensive price of the detectors. Detectors have a limited useful life in a radiographic environment, and multiple detectors need to be overhauled or replaced in subsequent equipment maintenance, further increasing equipment costs.
Disclosure of Invention
The invention provides a treatment device which can realize functions such as dose verification or image guidance and the like by using fewer detectors.
The purpose of the invention is realized by the following technical scheme:
a therapeutic apparatus comprising: the radiation detector comprises at least two ray heads and at least one detector, wherein at least one of the detectors is a movable detector, and the movable detector can move relative to the ray heads to be opposite to at least two positions in the ray heads so as to receive radiation beams emitted by the ray heads.
Preferably, when the mobile detector is located at a first position, the ray bundle emitted by one of the ray heads irradiates on the mobile detector, and when the mobile detector is located at a second position, the ray bundle emitted by the other ray head irradiates on the mobile detector; or when one of the ray heads is positioned at the first position, the ray beam emitted by the ray head irradiates on the mobile detector; when the other ray head is positioned at the first position, the ray beam emitted by the ray head irradiates the mobile detector. Therefore, the movable detector can move to the first position to receive the radiation of one of the ray heads, and move to the second position to receive the radiation of the other ray head, or the position of the movable detector is not changed, one of the ray heads moves to the first position to irradiate the movable detector, and the other ray head moves to the first position to irradiate the movable detector, so that the movable detector can receive the irradiation of different ray heads in multiple modes, and the irradiation of at least two ray heads can be received only by using one movable detector.
Preferably, the treatment device further comprises a first gantry on which the radiation head is disposed and a second gantry on which the motion detector is disposed. By adopting the mode, the ray head can be arranged on the first rack, and the movable detector is arranged on the second rack, so that the ray head and the movable detector are stably arranged, and the ray head and the movable detector can conveniently move.
Preferably, the ray head is driven by the first frame to move; alternatively, the beaming head is movable along the first gantry; or the mobile detector is driven by the second rack to move; alternatively, the motion detector is movable along the second gantry. Therefore, different ray heads can be irradiated to the mobile detector by driving the ray heads to move through the first rack, or the ray heads can be made to move on the first rack, so that different ray heads are irradiated to the mobile detector, or the second rack can drive the mobile detector to move to a corresponding position to receive irradiation of different ray heads, or the ray heads can move on the second rack to move to a corresponding position to receive irradiation of different ray heads, so that the mobile detector can receive irradiation of different ray heads.
Preferably, the first frame is an annular drum, and the second frame and the first frame are arranged in parallel along the axial direction of the annular drum, or the second frame is located on the inner side of the annular drum along the radial direction of the annular drum. The first frame and the second frame are arranged in parallel, so that the treatment head, the imaging head and the mobile detector can move more smoothly, the possibility of interference during movement is reduced, the occupation of a treatment space can be reduced, and the treatment space is enlarged; the second rack is positioned on the inner side, so that the movable detector can be protected, the movable detector can be conveniently moved in the first rack to receive the radiation of the treatment head and the imaging head, the escape of rays is reduced, and the safety of treatment equipment is improved.
Preferably, the movement detector is movable in a radial direction and/or an axial direction of the annular drum. Therefore, the position of the movable detector can be adjusted to enable the movable detector to receive the irradiation of the ray head at a more accurate position, and the movable detector can be axially moved to the first rack through the second rack when the first rack and the second rack are arranged in parallel.
Preferably, the firing head is movable in the radial and/or axial direction of the annular drum. Thus, when the moving detector rotates circularly to pass through the treatment head, the treatment head retracts, and the treatment head extends out during treatment. Especially for the focusing head, the focusing head generally needs to protrude out of the machine frame, so that the treatment head is set to be a telescopic head, and space saving is facilitated.
Preferably, the second frame is an annular roller, a circular guide rail or an arc guide rail. The second frame sets up to annular cylinder or circular guide rail and can let the scope of moving detector motion send out more, and sets up to arc cylinder or arc guide rail and can reduce the interference that treatment head and formation of image head received when removing, increases treatment space.
Preferably, in the case that the second frame is an arc-shaped guide rail, a central angle thereof is less than 180 degrees. This reduces material costs while ensuring that the radiation from the treatment and imaging heads can be received by the moving detector.
Preferably, the treatment device further comprises a stationary detector.
Preferably, in the case where the first frame is an endless drum, the fixed probe is disposed inside the endless drum in a radial direction of the endless drum.
Preferably, the number of the ray heads is greater than or equal to the number of the detectors. The number of detectors is reduced, the cost of the treatment equipment is reduced, and the treatment space is increased.
Preferably, the treatment device comprises at least two radiation heads, including at least one treatment head and at least one imaging head. In this way, the treatment head can treat the patient, and the imaging head can detect the affected part during examination or treatment, so as to meet the treatment requirement.
Preferably, the treatment head is any one of a focusing head, a conformal head or an accelerator.
Preferably, the radiation head comprises two treatment heads and one imaging head; or,
the ray head comprises two imaging heads and a treatment head; or,
the radiation head comprises a treatment head and an imaging head.
Preferably, in the case that the radiation head comprises two imaging heads and one treatment head, the two imaging heads are arranged on two sides of the treatment head; or,
in the case where the radiation head comprises a treatment head and an imaging head, the angle between the treatment head and the imaging head is less than 90 degrees.
In the case where the radiation head comprises two imaging heads, the angle between the two imaging heads is less than 180 degrees.
Preferably, the treatment equipment further comprises a mechanical arm, and the detector is arranged opposite to the first frame through the mechanical arm and moves relative to the ray head under the driving of the mechanical arm. This allows the radiation from the treatment head to be received by moving the movable detector to a first position and the radiation from the imaging head to be received by moving the movable detector to a second position by the robotic arms.
Compared with the prior art, the invention has the following advantages: in the invention, the treatment equipment comprises at least two ray heads and at least one mobile detector, the ray heads and the mobile detector can move relatively, and the at least one mobile detector can be opposite to the positions of the at least two ray heads so as to receive the radiation beam emitted by each ray head. Therefore, the radiation head is positioned on one motion path, the movable detector is positioned on the other motion path, the movable detector has multiple purposes, the movable detector can move to receive the radiation of one radiation head and the radiation of the other radiation head, the number of the movable detectors in the treatment equipment can be reduced, the use of a plurality of radiation heads can be met only by a smaller number of movable detectors, and the unit price of the movable detectors is expensive, so that the number of the movable detectors is reduced, and the equipment cost can be greatly reduced. And the occupation of redundant mobile detectors to the treatment space can be reduced by reducing the number of the mobile detectors, so that the treatment space is enlarged, and the treatment is further facilitated.
Drawings
FIG. 1 is a schematic diagram of a prior art treatment apparatus;
FIG. 2 is a schematic structural diagram of a treatment apparatus according to an embodiment of the present invention;
FIG. 3 is a schematic structural diagram of another therapeutic apparatus provided in accordance with an embodiment of the present invention;
FIG. 4 is a schematic structural diagram of another therapeutic apparatus provided in accordance with an embodiment of the present invention;
FIG. 5 is a schematic structural diagram of another therapeutic apparatus provided in accordance with an embodiment of the present invention;
FIG. 6 is a schematic structural diagram of another therapeutic apparatus provided in accordance with an embodiment of the present invention;
FIG. 7 is a schematic structural diagram of another therapeutic apparatus provided in accordance with an embodiment of the present invention;
fig. 8 is a schematic mechanism diagram of another therapeutic apparatus provided by an embodiment of the present invention.
Detailed Description
In the description of the present invention, it is to be understood that the terms "center", "lateral", "upper", "lower", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified. Furthermore, the term "comprises" and any variations thereof is intended to cover non-exclusive inclusions.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
An embodiment of the present invention provides a therapeutic apparatus, including: the radiation detector comprises at least two ray heads and at least one detector, wherein at least one of the detectors is a movable detector, and the movable detector can move relative to the ray heads to be opposite to the positions of the at least two ray heads so as to receive the radiation beam emitted by each ray head.
Illustratively, as shown in fig. 2, the treatment apparatus includes two radiation heads 10 and one detector. Among the two radiation heads 10 shown in fig. 2, the radiation head 10 shown in a rectangular shape is a treatment head 13, and the radiation head 10 shown in a circular shape is an imaging head 14. As shown in FIG. 2, the detector is a movable detector 15, when the movable detector 15 is at a first position 21, the radiation beam emitted from the treatment head 13 is irradiated onto the movable detector 15, and when the movable detector 15 is at a second position 22, the radiation beam emitted from the imaging head 14 is irradiated onto the movable detector 15. Thus, the movement of the movable detector 15 can be respectively opposite to the positions of the treatment head 13 or the imaging head 14, and when the movable detector 15 is located at the first position 21 and opposite to the treatment head 13, the movable detector 15 can verify the dose of the ray beam emitted by the treatment head 13 after receiving the ray beam emitted by the treatment head 13, or in the treatment process, the movable detector 15 can receive the ray beam emitted by the treatment head 13 and passing through the focus of the human body, so that the focus area of the human body is imaged. When the second position 22 of the movable detector 15 is opposite to the imaging head 14, the movable detector 15 receives the beam emitted by the imaging head 14 and passing through the focus of the human body, and can image the focus area of the human body, so that the movable detector 15 is used for positioning before treatment or tumor tracking in the treatment process. Of course, during the treatment process, the radiation beam emitted from the treatment head 13 or the radiation beam emitted from the imaging head 14 can be received by the movement of the movable detector 15, so that the lesion area is imaged from different angles to form a three-dimensional image of the lesion.
It should be noted that fig. 2 shows a specific embodiment of the present invention to illustrate the principle and effect of the present invention, and the treatment apparatus provided by the embodiment of the present invention is not limited to the number of the radiation heads and the detectors. In the embodiment of the invention, the treatment head emits a high-dose radiation beam which penetrates through a focus of a human body and is used for irradiating a tumor at the focus to damage tissues of the tumor to die, thereby achieving the purpose of treatment. Typically, the treatment head emits MV-level gamma radiation, and may be an accelerator, for example, or include a radiation source such as cobalt-60, for example. The imaging head emits a low-dose radiation beam, and the intensity of the radiation beam changes after passing through a focus region of a human body, so that the purpose of determining a tumor image of the focus region according to the intensity of the radiation beam can be achieved. Typically, the imaging head is an X-ray tube, which emits X-rays in the KV range. The treatment head, the imaging head, and the like are not particularly limited in the embodiments of the present invention, and the description is given only by way of example.
In the embodiment of the present invention, at least one of the detectors is a moving detector, and the detector may include a plurality of detectors, each of the plurality of detectors being a moving detector. Alternatively, the detector comprises two, one of which is a motion detector. Alternatively, the detector comprises three, two of which are moving detectors.
The treatment equipment provided by the embodiment of the invention comprises: the radiation detector comprises at least two ray heads and at least one detector, wherein at least one of the detectors is a movable detector, and the movable detector can move relative to the ray heads to be opposite to the positions of the at least two ray heads so as to receive the radiation beam emitted by each ray head. Therefore, the movable detector has multiple purposes, can move to receive the radiation of one ray head and can also move to receive the radiation of the other ray head, so that the number of the movable detectors in the treatment equipment can be reduced, the use of a plurality of ray heads can be met only by a smaller number of movable detectors, and the unit price of the movable detectors is more expensive, so that the number of the movable detectors is reduced, and the equipment cost can be greatly reduced. And the occupation of redundant mobile detectors to the treatment space can be reduced by reducing the number of the mobile detectors, so that the treatment space is enlarged, and the treatment is further facilitated.
In the embodiment of the present invention, referring to fig. 2, when the movable detector 15 is located at the first position 21, the radiation beam emitted from one of the radiation heads (i.e. the treatment head 13) irradiates the movable detector 15; when the moving detector 15 is at the second position 22, the other radiation head (i.e., the imaging head 14) emits a radiation beam that impinges on the moving detector 15. That is, the detector is moved to correspond to two different positions of the radiation head, so that the radiation beam emitted from the treatment head 13 or the radiation beam emitted from the imaging head 14 can be received during the treatment process, and the lesion area is imaged from different angles to form a three-dimensional image of the lesion.
Or when one of the ray heads is positioned at the first position, the ray beam emitted by the ray head irradiates on the movable detector; when the other radiation head is at the first position, the radiation beam emitted by the radiation head irradiates on the mobile detector. That is, in the embodiment of the present invention, at least two of the ray heads are respectively movable so as to be located at corresponding positions of the detector. Therefore, under the condition that the ray head and the detector both move, the detector can receive radiation beams with different angles more quickly, three-dimensional imaging of a focus area is facilitated in a shorter time, and accurate positioning of the focus in the treatment process is improved.
In the embodiment of the invention, the motion of the treatment head and the imaging head and the motion of the movable detector can be independent, and the movable detector can receive the irradiation of the treatment head and the irradiation of the imaging head. Or the position of the movable detector is not changed, and the treatment head or the imaging head respectively moves to the first position to irradiate the movable detector and corresponds to the movable detector. Therefore, the irradiation of different radiation heads can be received by the movable detector in various ways, and the irradiation of at least two radiation heads can be received by only using one movable detector.
In the embodiment of the invention, the ray head is positioned on one motion path, and the movable detector is positioned on the other motion path, so that the relative motion of the ray head and the movable detector can be realized. Illustratively, as shown in fig. 2, the treatment device comprises a first frame 11 and a second frame 12, and the ray head 10 (including a treatment head 13 and an imaging head 14) is arranged on the first frame 11 and moves along the path of the first frame; a motion detector 15 is disposed on the second gantry 12 for movement along the path of the second gantry.
Specifically, the first frame 11 may be movable, the radiation head 10 is fixed on the first frame 11, and the radiation head 10 is moved by the first frame 11. Alternatively, the radiation head 10 is movably arranged on the first frame 11, and the radiation head 10 is movable along the first frame 11. Alternatively, the second frame 12 is movable, the moving detector 15 is fixed on the second frame 12, and the moving detector 15 is moved by the second frame 12. Alternatively, the motion detector 15 may be movably disposed on the second frame 12, and the motion detector 15 may be movable along the second frame 15.
In the embodiment of the invention, the treatment head and the imaging head can be driven by the first frame to move so as to irradiate the relative position of the movable detector; or the treatment head and the imaging head can move on the first frame, so that the treatment head and the imaging head irradiate the relative position of the movable detector; or the second frame drives the movable detector to move to corresponding positions to receive the irradiation of the treatment head and the imaging head; or the movable detector moves on the second frame and moves to a corresponding position to receive the irradiation of the treatment head and the imaging head, and the like, so that the movable detector can receive the irradiation of different ray heads. The above-mentioned modes can also be mutually movable, for example, the treatment head and the imaging head can be driven by the first frame to move, and the treatment head and the imaging head can be movable along the first frame; the mobile detector can be driven by the second frame to move, and the mobile detector can move along the second frame. The embodiment of the invention does not limit the specific moving mode, as long as the moving detectors can receive the irradiation of the treatment head and the irradiation of the imaging head.
As shown in fig. 2, in the present embodiment, the first frame 11 may be an annular roller, and the second frame 12 is located inside the annular roller (i.e., the first frame 11) along a radial direction of the annular roller (i.e., the first frame 11). The second frame 12 is positioned at the inner side to protect the movable detector 15, and the movable detector 15 can receive the radiation of the treatment head 13 and the imaging head 14 conveniently in the first frame, so that the escape of the radiation is reduced, the safety of the treatment equipment is improved, the movement of the treatment head 13 and the imaging head 14 can be facilitated, and the interference of the treatment head 13 and the imaging head 14 during the movement is reduced. Of course, the moving detector 15 can also move along the radial direction (i.e. 101 direction) and/or the axial direction of the annular roller, so that the position of the moving detector can be adjusted to make the moving detector receive the irradiation of the radiation head at a more accurate position. Specifically, the moving detector may move only along the annular roller, or the moving detector may move only along the axial direction of the annular roller, or the moving detector may move along both the radial direction and the axial direction of the annular roller. The movement and direction of the movement detection are not particularly limited in the embodiments of the present invention, for example, the movement detector may also perform three-dimensional, multi-dimensional, or pivoting movement.
Alternatively, as shown in fig. 3, the second frame 12 is an arc-shaped roller or an arc-shaped guide rail, for example. The path of motion of the moving detector is less than 360. This reduces the interference between the treatment head 13 and the imaging head 14 during movement, and increases the treatment space.
Alternatively, as shown in fig. 4, the first frame 11 is exemplified as a ring-shaped drum, and the first frame 11 and the second frame 12 may be arranged in parallel along the axial direction of the ring-shaped drum. The second gantry 12 may be a ring drum or a ring rail, and the motion detector 15 may be movable from the second gantry 12 in the axial direction of the ring drum. For example, when the second gantry 12 rotates to correspond to the treatment head 13, the radiation of the treatment head 13 is received by moving the movable detector 15 along the inner side surface of the gantry to the corresponding position of the treatment head 13, so as to perform dose detection. The first frame 11 and the second frame 12 are arranged in parallel, so that the treatment head 13, the imaging head 14 and the mobile detector 15 can move more smoothly, the possibility of interference during movement is reduced, the occupation of a treatment space can be reduced, and the treatment space is enlarged.
Alternatively, as shown in fig. 7, the first frame 11 is an annular roller, the second frame 12 is parallel to the first frame 11 along the axial direction of the annular roller, and the second frame 12 is an annular guide rail and is disposed on the first frame 11. The motion detector 15 may slide along the second gantry 12.
It should be noted that, in the embodiment shown in fig. 7, the moving detector 15 can also move along the radial direction 101 of the ring roller, and then move along the axial direction of the ring roller to be located at the corresponding position of the treatment head 13 or the imaging head 14.
Of course, if the second support is located in close proximity to the inner surface of the ring drum, the motion detector 15 may be moved along the axial direction of the ring drum, and thus may be located at a corresponding position of the treatment head 13 or the imaging head 14.
As shown in fig. 2 and 3, the radiation head is movable in the radial direction (i.e. 101 direction) and/or in the axial direction of the ring drum, i.e. the treatment head 13 is telescopic relative to the axis of said first frame 11. Thus, when the motion detector 15 rotates circularly to pass through the treatment head 13, the treatment head 13 retracts, and the treatment head 13 extends during treatment. Especially for the focusing head, the focusing head generally needs to protrude out of the machine frame, so that the treatment head is set to be a telescopic head, and space saving is facilitated. Of course, the radiation head can also move along the axial direction of the annular roller, so that non-coplanar irradiation can be realized. Specifically, the axial movement of the radiation head along the annular roller may be realized by a linear guide rail or an arc guide rail, and the specific embodiment of the present invention is not limited.
Of course, the second frame may be a ring-shaped drum, as shown in fig. 2, or a circular guide rail, etc., as shown in fig. 7. The specific shapes of the second frame and the first frame are not limited in the embodiments of the present invention, and only the examples shown in the drawings will be described.
In this embodiment, for example, the first frame may also be a slide rail arranged in a horizontal or vertical direction, and the second frame is arranged in parallel with the first frame. Thus, the requirements of the treatment head and the imaging head can be met by only needing less movable detectors in a horizontal or vertical state.
For example, in the treatment apparatus of this embodiment, the treatment head and the imaging head may be mounted on the first gantry, and the motion detector may be disposed opposite to the first gantry through a robot arm and move relative to the treatment head and the imaging head according to the driving of the robot arm. This allows the radiation from the treatment head to be received by moving the movable detector to a first position and the radiation from the imaging head to be received by moving the movable detector to a second position by the robotic arms.
The treatment device provided by the embodiment of the invention also comprises a fixed detector. For example, the treatment device may be a device comprising a stationary detector and a mobile detector; alternatively, the treatment device may be a device comprising two fixed detectors and one moving detector; alternatively, the treatment device may comprise one fixed detector and two moving detectors, etc. The number of detectors and whether the detectors are moving detectors or fixed detectors are not particularly limited in the embodiments of the present invention.
Taking the example that the therapeutic equipment comprises a fixed detector and a movable detector, as shown in fig. 5, the radiation head comprises a therapeutic head 13 and an imaging head 14, the first frame 11 is a ring-shaped roller, the second frame 12 is arranged at the inner side of the first frame 11 along the radial direction of the ring-shaped roller, and the second frame 12 is an arc-shaped guide rail. The treatment apparatus comprises a moving detector 15 and a fixed detector 16, wherein the moving detector 15 is slidable along the second gantry and receives the radiation beam from the treatment head 13 when the moving detector 15 moves to a position opposite to the treatment head 13; when the moving detector 15 moves to a position not opposite the treatment head 13, it does not receive the radiation beam. The stationary detector 16 is fixedly disposed at an opposite position from the imaging head 14 so as to receive the radiation beam emitted from the imaging head 14.
Thus, the fixed detector can receive the radiation beam emitted by the imaging head, so that tumors and the like in a focus area can be imaged, and the fixed detector can be used for positioning before treatment. When the moving detector slides to the opposite side of the treatment head, the moving detector can receive the radiation beam emitted by the treatment head, so that the radiation beam emitted by the treatment head can be subjected to dose verification. Or during the treatment process, imaging is carried out according to the radiation beam which is emitted by the treatment head and penetrates through the focus of the human body, so that the tumor can be imaged from different directions by utilizing the fixed detector and the movable detector, and a three-dimensional image of the focus area is formed.
for example, as shown in FIG. 5, the central angle α of the arc-shaped guide rail may be 30 degrees, 45 degrees, 60 degrees, 120 degrees, etc. to minimize the space occupied by the second gantry within the first gantry, thus reducing material costs while ensuring that the radiation from the treatment head 13 and the imaging head 14 can be received by the motion detector 15.
In the embodiment of the present invention, as shown in fig. 5, in the case where the first frame 11 is a ring drum, the fixed probe 16 is disposed radially inside the first frame 11. It should be noted that, the specific position of the fixed detector is not limited in the embodiment of the present invention, for example, the fixed detector may also be disposed at a corresponding position of the treatment head.
In this embodiment, the sum of the number of treatment heads and the number of imaging heads is greater than or equal to the number of motion detectors. Thus, the number of the movable detectors is less, the cost of the treatment equipment is reduced, and the treatment space is increased. Illustratively, the number of treatment heads 13 is not limited to one, and the number of motion detectors 15 is smaller than the sum of the treatment heads 13 and the imaging heads 14, and is not limited to one. In this embodiment, the treatment device may include M radiation heads (the radiation heads include a treatment head and a KV emitter) and N detectors, where N is greater than or equal to 1 and less than or equal to M, and N, M is a positive integer. In this embodiment, N is 1. M ray heads and N move the detector along different path motion, and N moves the detector and can move to the position department that corresponds with M ray heads to less removal detector can detect the ray that more ray heads sent, reduces the quantity that moves the detector, reduce cost, increase treatment space.
In an embodiment of the invention, the treatment device comprises at least two radiation heads, wherein at least one is a treatment head and the other is an imaging head. For example, the treatment head can be a Co-60 treatment head or an accelerator treatment head, and if the treatment head is an accelerator, the radiation source can be an x-ray source, an electron source, a synchrotron radiation source or a neutron source. That is, in the embodiment of the present invention, the treatment head is any one of a focusing head, a conformal head, or an accelerator. Wherein, if the treatment head comprises two treatment heads, the two treatment heads can be a focusing head and a conformal head. Of course, the treatment heads may be all focusing heads or all conformal heads, and the treatment heads are not particularly limited in the embodiments of the present invention, and are only exemplified in the above.
In the embodiment of the invention, the radiation head comprises two treatment heads and an imaging head. Alternatively, the radiation head comprises two imaging heads and one treatment head. Alternatively, the radiation head comprises a treatment head and an imaging head.
In the embodiment of the present invention, a radiation head includes two treatment heads and an imaging head as an example, the radiation head includes two treatment heads and an imaging head as shown in fig. 6, the radiation head includes a first treatment head 13, a second treatment head 17 and an imaging head 14, the radiation treatment apparatus includes a moving detector 15 as an example, the first treatment head 13, the second treatment head 17 and the imaging head 14 are fixed on a first gantry 11 (ring drum), and the first treatment head 13, the second treatment head 17 and the imaging head 14 are driven by the first gantry 11 to rotate circumferentially. The second gantry is located radially inside the ring drum, along which the detector 15 is movable. When the detector 15 moves to the corresponding position of the first treatment head 13, it receives the radiation beam emitted by the first treatment head 13, and can verify the beam dose of the first treatment head 13, or image the lesion area by using the radiation beam emitted by the first treatment head 13 and passing through the lesion of the human body, and can be used for positioning before treatment or tumor tracking during treatment. When the detector 15 moves to the corresponding position of the second treatment head 17, it receives the radiation beam emitted by the second treatment head 17, and can verify the beam dose of the second treatment head 17, or image the lesion area by using the radiation beam emitted by the second treatment head 17 and passing through the lesion of the human body, and can be used for positioning before treatment or tumor tracking during treatment. When the detector 15 moves the corresponding position of the imaging head 14, it receives the radiation beam emitted by the imaging head 14, and can receive the radiation beam emitted by the imaging head 14 and passing through the focus of the human body, so as to image the focus area, and can be used for positioning before treatment or tumor tracking during treatment.
It should be noted that the first therapy head 13 and the second therapy head 17 can be both Co-60 therapy heads or both accelerator therapy heads, or the first therapy head 13 is a Co-60 therapy head and the second therapy head 17 is an accelerator therapy head. If the first treatment head 13 and the second treatment head 17 are both Co-60 treatment heads, the first treatment head 13 and the second treatment head 17 may be a focusing head and a conformal head, respectively, or both may be focusing heads or both may be conformal heads. If the first treatment head 13 and the second treatment head 17 are accelerator treatment heads, the radiation source can be an x-ray source, an electron source, a synchrotron radiation source or a neutron source, etc. The specific type of the therapy head in this embodiment is not particularly limited, and the above is only an example. In addition, the second housing 12 may be independently operable with respect to the first housing.
The embodiment of the invention provides another specific embodiment for explaining, taking the example that the ray head comprises two imaging heads and a treatment head, and the detector comprises a fixed detector and a movable detector. As shown in figure 8, the radiation head comprises a treatment head 13, a first imaging head 14 and a second imaging head 18, and the detectors comprise a fixed detector 16 and a movable detector 15. The first frame 11 is a ring drum, the first treatment head 13, the first imaging head 14 and the second imaging head 18 are disposed on the ring drum, and the fixed detector 15 is disposed on the radial inner side of the ring drum. The radial inner side of the annular roller is also provided with an arc-shaped guide rail (namely, a second rack 12), and the moving detector is arranged on the arc-shaped guide rail and can move along the arc-shaped guide rail.
A stationary detector 16 is positioned opposite the first imaging head 14 for receiving the radiation beam from the first imaging head 14 for imaging a region of the lesion, for pre-treatment positioning, or for tumor tracking during treatment. The movable detector 15 can be located at a corresponding position of the second imaging head 18 by moving on the arc-shaped guide rail, so as to receive the radiation beam emitted by the second imaging head 18 and penetrating through the human body lesion, so as to image the lesion area, and can be used for positioning before treatment or tumor tracking during treatment. The movable detector 15 is disposed on the arc-shaped guide rail, and when the movable detector 15 slides to a corresponding position of the treatment head 13, the radiation beam emitted by the treatment head 13 can be received, so as to perform dose verification on the radiation beam emitted by the treatment head 13. Or, during the treatment process, the radiation beam which is emitted by the treatment head 13 and passes through the focus of the human body is received, and the focus area of the human body is imaged. Thus, the stationary detector 16 and the moving detector 15 can image the lesion from different directions, thereby forming a three-dimensional image of the lesion.
In the embodiment of the invention, referring to fig. 8, in the case that the radiation head comprises two imaging heads and one treatment head, the two imaging heads are arranged on two sides of the treatment head. The angle between the two imaging heads is less than 180 degrees, for example, the angle between the two imaging heads may be 175 degrees, 160 degrees, 145 degrees, 90 degrees, etc. Preferably, the angle between the two imaging heads is less than 120 degrees. In addition, the smaller the included angle between the treatment head and the imaging head is, the better, and the included angle between the treatment head and the imaging head is not particularly limited in the embodiment of the present invention.
In the embodiment of the invention, in the case that the radiation head comprises a treatment head and an imaging head, the included angle between the treatment head and the imaging head is less than 90 degrees. Similarly, the smaller the included angle between the treatment head and the imaging head is, the better the included angle is, and the included angle between the treatment head and the imaging head is not particularly limited in the embodiment of the present invention.
The foregoing is a more detailed description of the invention in connection with specific preferred embodiments and it is not intended that the invention be limited to these specific details. For those skilled in the art to which the invention pertains, several simple deductions or substitutions can be made without departing from the spirit of the invention, and all shall be considered as belonging to the protection scope of the invention.
Claims (18)
1. A therapeutic apparatus, comprising: the radiation detector comprises at least two ray heads and at least one detector, wherein at least one of the detectors is a movable detector which can move relative to the ray heads so as to be respectively opposite to at least two positions in different ray heads, and thus the radiation beams emitted by different ray heads are respectively received;
the at least two radiation heads comprise at least one treatment head.
2. The treatment apparatus according to claim 1, wherein when the movable detector is in the first position, the radiation beam from one of the radiation heads impinges on the movable detector, and when the movable detector is in the second position, the radiation beam from the other of the radiation heads impinges on the movable detector; or when one of the ray heads is positioned at the first position, the ray beam emitted by the ray head irradiates on the mobile detector; when the other ray head is positioned at the first position, the ray beam emitted by the ray head irradiates the mobile detector.
3. The treatment apparatus of claim 2, further comprising a first gantry on which the radiation head is disposed and a second gantry on which the motion detector is disposed;
the ray head is driven by the first frame to move; alternatively, the beaming head is movable along the first gantry; or the mobile detector is driven by the second rack to move; alternatively, the motion detector is movable along the second gantry.
4. The treatment apparatus according to claim 3, wherein the first frame is an endless drum, and the second frame is disposed in parallel with the first frame in an axial direction of the endless drum, or the second frame is located inside the endless drum in a radial direction of the endless drum.
5. Therapeutic device according to claim 4, characterized in that the movement detector is movable in the radial and/or axial direction of the annular drum.
6. Therapeutic device according to claim 4, characterized in that the radiation head is movable in the radial and/or axial direction of the annular drum.
7. The treatment apparatus of claim 4, wherein the second gantry is a toroidal drum, a circular rail, or an arcuate rail.
8. The treatment apparatus according to claim 7, wherein in the case where the second gantry is an arc-shaped rail, a central angle thereof is less than 180 degrees.
9. A treatment device according to claim 1 or 2, characterized in that the treatment device further comprises a stationary detector.
10. The treatment apparatus according to any one of claims 3-8, wherein the treatment apparatus further comprises a stationary detector.
11. The treatment apparatus according to claim 10, wherein in a case where the first frame is a ring drum, the fixed detector is disposed inside the ring drum in a radial direction of the ring drum.
12. The treatment apparatus according to claim 1, wherein the number of radiation heads is equal to or greater than the number of detectors.
13. The treatment apparatus of claim 1, wherein the at least two radiation heads comprise at least one treatment head and at least one imaging head.
14. The treatment apparatus of claim 13, wherein the treatment head is any one of a focusing head, a conformal head, or an accelerator.
15. The treatment apparatus of claim 13, wherein the radiation head comprises two treatment heads and one imaging head; or,
the ray head comprises two imaging heads and a treatment head; or,
the radiation head comprises a treatment head and an imaging head.
16. The treatment apparatus according to claim 15, wherein in case the radiation head comprises two imaging heads and one treatment head, the two imaging heads are arranged on both sides of the treatment head; or,
in the case where the radiation head comprises a treatment head and an imaging head, the angle between the treatment head and the imaging head is less than 90 degrees.
17. A treatment device as claimed in claim 15, in which, where the radiation head comprises two imaging heads, the angle between the two imaging heads is less than 180 degrees.
18. The treatment apparatus of claim 2, further comprising a robotic arm on which the motion detector is disposed and driven by the robotic arm to move relative to the radiation head.
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| WO2018145317A1 (en) * | 2017-02-13 | 2018-08-16 | 西安大医数码技术有限公司 | Radiation therapy device |
| CN110366389B (en) * | 2017-06-19 | 2023-03-03 | 深圳市奥沃医学新技术发展有限公司 | System and device for determining target point position by using radiotherapy equipment and radiotherapy equipment |
| WO2018232568A1 (en) | 2017-06-19 | 2018-12-27 | 深圳市奥沃医学新技术发展有限公司 | Method for tracking and irradiating target using radiotherapy apparatus, device and radiotherapy apparatus |
| WO2019136660A1 (en) | 2018-01-11 | 2019-07-18 | Shenzhen United Imaging Healthcare Co., Ltd. | Systems and methods for intrafractional ct imaging in image-guided radiotherapy |
| CN112107803A (en) * | 2020-09-23 | 2020-12-22 | 上海联影医疗科技股份有限公司 | Radiotherapy apparatus |
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| CN1919372B (en) * | 2005-08-25 | 2011-10-19 | 深圳市海博科技有限公司 | Radiation therapeutical device |
| JP4714269B2 (en) * | 2006-07-27 | 2011-06-29 | ドイチェス クレープスフォルシュングスツェントルム | Irradiation device and collimator |
| CN101879071A (en) * | 2010-07-01 | 2010-11-10 | 上海世鹏实验室科技发展有限公司 | Radiation treatment system |
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Application publication date: 20170111 Assignee: CYBERMED RADIOTHERAPY TECHNOLOGIES Co.,Ltd. Assignor: Shenzhen Aowo Medical New Technology Development Co.,Ltd. Contract record no.: 2018610000030 Denomination of invention: Treatment device Granted publication date: 20181116 License type: Common License Record date: 20181120 |
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Address after: 518122 104, Building F, Building 5, Shenzhen Kaiwopingshan New Energy Automobile Base, No. 1, Huibei Road, Shatian Community, Kengzi Street, Pingshan District, Shenzhen, Guangdong Patentee after: Shenzhen Dayi Gamma Knife Technology Co.,Ltd. Country or region after: China Address before: 518000 8, 801-803 and 805-811, block B, Fu Hua Science and technology building, 9116 North Ring Road, Nanshan District, Shenzhen, Guangdong. Patentee before: Shenzhen Aowo Medical New Technology Development Co.,Ltd. Country or region before: China |