WO2022141569A1 - 放疗系统 - Google Patents
放疗系统 Download PDFInfo
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- WO2022141569A1 WO2022141569A1 PCT/CN2020/142498 CN2020142498W WO2022141569A1 WO 2022141569 A1 WO2022141569 A1 WO 2022141569A1 CN 2020142498 W CN2020142498 W CN 2020142498W WO 2022141569 A1 WO2022141569 A1 WO 2022141569A1
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- radiation source
- drives
- gear
- transmission assembly
- source mechanism
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- 238000001959 radiotherapy Methods 0.000 title claims abstract description 60
- 230000007246 mechanism Effects 0.000 claims abstract description 457
- 230000005855 radiation Effects 0.000 claims abstract description 241
- 230000005540 biological transmission Effects 0.000 claims abstract description 123
- 208000032370 Secondary transmission Diseases 0.000 claims description 63
- 238000006243 chemical reaction Methods 0.000 claims description 33
- 208000032369 Primary transmission Diseases 0.000 claims description 28
- 238000001514 detection method Methods 0.000 claims description 26
- 239000003638 chemical reducing agent Substances 0.000 claims description 24
- 238000011282 treatment Methods 0.000 abstract description 110
- 201000010099 disease Diseases 0.000 abstract description 4
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 abstract description 4
- 238000000034 method Methods 0.000 description 19
- 230000008569 process Effects 0.000 description 14
- 238000010586 diagram Methods 0.000 description 6
- 230000007306 turnover Effects 0.000 description 5
- 206010028980 Neoplasm Diseases 0.000 description 4
- 201000011510 cancer Diseases 0.000 description 4
- 230000003902 lesion Effects 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000001960 triggered effect Effects 0.000 description 2
- 229910001018 Cast iron Inorganic materials 0.000 description 1
- 229910000640 Fe alloy Inorganic materials 0.000 description 1
- 206010028851 Necrosis Diseases 0.000 description 1
- 229910000805 Pig iron Inorganic materials 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 238000011243 body radiation therapy Methods 0.000 description 1
- 210000000746 body region Anatomy 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 230000017074 necrotic cell death Effects 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 230000002285 radioactive effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000001225 therapeutic effect Effects 0.000 description 1
- 238000002560 therapeutic procedure Methods 0.000 description 1
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B6/00—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N5/00—Radiation therapy
- A61N5/10—X-ray therapy; Gamma-ray therapy; Particle-irradiation therapy
Definitions
- the embodiments of the present application relate to the technical field of radiotherapy, and in particular, to a radiotherapy system.
- Radiotherapy is one of the main methods of cancer treatment. the goal of.
- the radiation source mechanism in the radiotherapy equipment is fixed on the frame of the equipment, and the radiation generated by the radiation source mechanism can only be focused on a fixed focus, so the treatment range of the equipment is small.
- the purpose of the present application is to propose a radiotherapy system, which is used to realize the reversal of the radiation source mechanism in the radiotherapy system and expand the treatment range of the radiotherapy system.
- An embodiment of the present application provides a radiotherapy system
- the radiotherapy system includes: a conversion mechanism, a frame, and a radiation source mechanism;
- the conversion mechanism is disposed on the frame, and the conversion mechanism includes: a driving mechanism and a transmission mechanism
- the transmission mechanism is connected with the radiation source mechanism to drive the radiation source mechanism to convert between different working positions under the driving of the driving mechanism, wherein the beams emitted by the radiation source mechanism are in different The beam direction of the work station is different.
- the transmission mechanism includes at least a primary transmission component and a secondary transmission component; the primary transmission components are respectively connected with the driving mechanism, and the secondary transmission component is connected with the radiation source mechanism the drive mechanism drives the primary transmission assembly, the primary transmission assembly drives the secondary transmission assembly, and the secondary transmission assembly drives the radiation source mechanism to switch between different working positions.
- the primary transmission assembly and/or the secondary transmission assembly is one of a sliding transmission mechanism, a link transmission mechanism, a gear transmission mechanism, and a transmission belt mechanism.
- the primary transmission assembly includes: a sliding rail and a sliding block; the sliding rail is provided on the beam of the frame, and the sliding block is provided on the sliding rail; the secondary The transmission assembly is respectively connected with the sliding block and the radiation source mechanism; the driving mechanism drives the sliding block to move along the sliding rail, the sliding block drives the secondary transmission assembly, and the secondary transmission assembly The radiation source mechanism is driven to switch between different working positions.
- the secondary transmission assembly includes a connecting rod; one end of the connecting rod is rotatably connected with the slider, and the other end of the connecting rod is rotatably connected with the edge of the radiation source mechanism;
- the slider drives the connecting rod, and the connecting rod drives the radiation source mechanism to switch between different working positions.
- the transmission mechanism is provided on two opposite beams of the frame.
- any one of the two transmission mechanisms is provided with a lead screw, and the lead screw is arranged on the slide rail through the slider; the drive mechanism drives the lead screw , the screw drives the slider to move along the slide rail.
- the primary transmission assembly includes a first gear; the first gear is rotatably connected with the driving mechanism, the first gear is meshed with the secondary transmission assembly, and the driving mechanism The first gear is driven to rotate, and the first gear drives the secondary transmission assembly, so that the secondary transmission assembly drives the radiation source mechanism to switch between different working positions.
- the secondary transmission assembly includes a second gear; the second gear is fixedly connected with the rotation shaft of the radiation source mechanism, and the second gear is externally meshed with the first gear, The first gear drives the second gear to rotate, and the second gear drives the radiation source mechanism to switch between different working positions.
- the secondary transmission assembly includes a chain; the chain is engaged with the first gear, and two ends of the chain are respectively connected to the edges of the two ends of the radiation source mechanism.
- the gear drives the chain to move, and the chain drives the radiation source mechanism to switch between different working positions.
- the driving mechanism includes: a motor; the motor is fixed to the beam of the frame; the motor drives the transmission mechanism, so that the transmission mechanism drives the radiation source mechanism in different Convert between work bits.
- the drive mechanism further includes: a reducer; an input shaft of the reducer is connected to an output shaft of the motor, an output shaft of the reducer is connected to the transmission mechanism, and the speed reducer is connected to the transmission mechanism.
- the actuator drives the transmission mechanism, so that the transmission mechanism drives the radiation source mechanism to switch between different working positions.
- the radiation source mechanism is disposed on the frame, the driving mechanism is fixed to the frame, and the transmission mechanism is respectively connected with the driving mechanism and the radiation source mechanism.
- the radiation source mechanism is provided on the conversion mechanism.
- the radiation source mechanism can be translated and/or raised and lowered on the frame.
- the radiotherapy system further includes a position detection mechanism; the position detection mechanism is used to detect the position of the radiation source mechanism.
- the radiotherapy system further includes a locking mechanism; the position detection mechanism sends a locking instruction to the locking mechanism when detecting that the radiation source mechanism is switched to a specified position; the locking The mechanism locks the radiation source mechanism to the designated position according to the locking instruction.
- the conversion mechanism in the radiotherapy system is arranged on the frame. Driven by the conversion mechanism, the radiation source mechanism can be converted between different working positions. In this way, the radiation source mechanism can be converted according to actual needs.
- the rays are focused on different focal points for disease treatment, expanding the treatment range of the radiotherapy system.
- FIG. 1 is a schematic structural diagram of a radiotherapy system according to an embodiment of the application
- FIG. 2 is a schematic structural diagram of another radiotherapy system provided by an embodiment of the present application.
- FIG. 3 is a schematic structural diagram of another radiotherapy system provided by an embodiment of the present application.
- Radiotherapy equipment generally includes a rack and a radiation source mechanism arranged on the rack, wherein an active box is placed in the radiation source mechanism, and a radiation source is arranged in the source box.
- Radiotherapy equipment mainly focuses the rays generated by the radioactive source on the lesion area, so that the lesion area produces focal necrosis or functional changes to achieve the purpose of treating the disease.
- radiotherapy equipment In conventional radiotherapy equipment, the radiation source mechanism is fixed on the frame, the radiation generated by the radiation source mechanism can only be focused on a fixed focus, and the treatment range is small.
- radiotherapy equipment is generally divided into two categories according to the treatment area: head radiotherapy equipment for the treatment of the head area, and body radiotherapy equipment for the treatment of other areas than the head.
- the radiation source mechanism in the head radiotherapy equipment, the radiation source mechanism is placed vertically on the frame, at this time, the direction of the beam emitted by the radiation source mechanism is the horizontal direction; in the body radiation therapy equipment, the radiation source mechanism is placed horizontally in the horizontal direction. Above the rack, the direction of the beam emitted by the radiation source mechanism is the vertical direction.
- one radiotherapy equipment can only be used for the treatment of cancer in a certain area, and cannot take into account the treatment of cancer in the head area and the cancer in the body area at the same time. Therefore, in order to adapt to more treatments It is necessary to purchase head radiotherapy equipment and body radiotherapy equipment at the same time, and the cost is relatively high.
- the radiation therapy system can make the radiation source mechanism switch between different working positions, thereby expanding the treatment range of the radiation therapy system.
- the switching mechanism can make the source mechanism flip between 0° and 90°. It can be understood that the radiation source mechanism within the range of 0°-90° can be used to treat the body; similarly, the radiation source mechanism within the range of 0°-90° can be used to treat the head .
- the radiation source mechanism When the radiation source mechanism is in the horizontal position, that is, the radiation source mechanism can perform the treatment of the body region at the 0° position, and the radiation source mechanism is in the body treatment working position; when the radiation source mechanism is turned over, the turning angle is greater than When the temperature is 0°, the treatment of the head area can be performed, and the radiation source mechanism is in the head treatment working position at this time.
- the position when the turning angle of the radiation source mechanism is 54.5° can be used as the head treatment working position. At this time, the rays generated by the radiation source mechanism can be better focused on the head lesion area. .
- FIG. 1 is a schematic structural diagram of a radiotherapy system provided by an embodiment of the present application.
- the radiotherapy system includes: a conversion mechanism, a frame 1 and a radiation source mechanism 2; the conversion mechanism is arranged on the frame, and the conversion mechanism includes: a driving mechanism 3 and a transmission mechanism 4; 3 drives the radiation source mechanism 2 to switch between different working positions, wherein the beams emitted by the radiation source mechanism 2 have different beam directions in different working positions.
- the working positions of the radiation source mechanism 2 may include: a body treatment working position and a head treatment working position.
- the beam direction is the centerline of the focused beam formed by the multiple radiation sources in the radiation source mechanism 2, and the centerline is away from the direction of the radiation source mechanism.
- the beam direction is perpendicular to the horizontal plane; when the source device 2 is at the 90° position, the beam direction is parallel to the horizontal plane; when the source device 2 is at the 54.5° position, the beam direction is the same as the horizontal plane.
- the horizontal plane is at an angle of 54.5°.
- the body treatment working position is that the radiation source device 2 is at the 0° position;
- the head treatment working position is that the radiation source device 2 is at the 54.5° position.
- the frame 1 may be a support frame having any shape that can support the radiation source mechanism 2 to be turned over.
- the rack 1 may be composed of multiple components.
- Rack 1 can be composed of 4 supporting columns and 2 beams. Specifically, the four support columns can be fixed on the ground of the computer room where the radiotherapy system is installed, the connecting lines of the four fixed points form a rectangle, the beams are arranged between the support columns, and the two beams are parallel to each other.
- the support column can be a column with any shape, and can be a groove-shaped column welded by sheet metal; it can also be an integrally formed solid column, such as a solid column with a rectangular cross-section. Alternatively, the integrally formed solid column with a circular cross-section, etc.
- the material of the frame 1 is not limited. In order to improve the support strength of the frame 1, preferably, commonly used metal materials such as steel, pig iron, iron alloy, cast iron, etc. can be used.
- the conversion mechanism includes: a driving mechanism 3 and a transmission mechanism 4 ; the transmission mechanism 4 is respectively connected with the driving mechanism 3 and the radiation source mechanism 2 . Under the driving of the driving mechanism, the radiation source mechanism is driven to switch between different working positions.
- the conversion mechanism is fixed on the beam of the frame.
- the driving mechanism 3 may be any component capable of providing power (driving torque) to the transmission mechanism 4, and the specific form of the driving mechanism 3 is not limited in the embodiment of the present application.
- the transmission mechanism 4 in the embodiment of the present application is a mechanism that transmits the power (driving torque) provided by the driving mechanism 3 to the radiation source mechanism 2 so as to turn the radiation source mechanism 2 over and then switch between different working positions.
- the specific form of the transmission mechanism 4 is not limited.
- the transmission mechanism 4 may be one of a sliding transmission mechanism, a link transmission mechanism, a transmission belt mechanism, and the like.
- the transmission mechanism 4 may be a multi-stage transmission mechanism, wherein each stage of the transmission mechanism may be one of a sliding transmission mechanism, a link transmission mechanism, a transmission belt mechanism, and the like. That is to say, the transmission mechanism 4 may be a combination of the above-mentioned various transmission mechanisms.
- the radiation source mechanism is arranged on the frame, the driving mechanism is fixed on the frame, and the transmission mechanism is respectively connected with the driving mechanism and the radiation source mechanism.
- the radiation source mechanism 2 may be disposed between two beams of the rack 1 and flipped relative to the beams, and the rotation axis of the radiation source mechanism 2 may be perpendicular to the above-mentioned two beams.
- the radiation source mechanism 2 can be flipped on both sides around its rotation axis, as shown in FIG. 1 , it can be flipped to the left, or it can be flipped to the right. Flip to switch between different work positions. Since the directions of the beams emitted by the radiation source mechanism 2 are different when in different working positions, the radiation generated by the radiation source mechanism 2 can be focused on different focal points according to actual needs to perform disease treatment.
- the radiation source mechanism is provided on the conversion mechanism.
- the conversion mechanism is arranged on the frame, that is, the drive mechanism 3 and the transmission mechanism 4 are both arranged on the frame.
- the radiation source mechanism 2 is fixedly arranged on the conversion mechanism, and is fixed to the frame 1 through the conversion mechanism.
- conversion mechanisms are provided on both beams, and the radiation source mechanism 2 may be disposed between the conversion mechanisms on the two beams.
- the conversion mechanism can drive the radiation source mechanism 2 to turn over to switch between different working positions.
- the radiation source mechanism can be translated and/or raised and lowered on the gantry.
- the radiation source mechanism 2 is fixedly arranged on the conversion mechanism, and is fixed to the frame 1 through the conversion mechanism.
- the rack 1 is provided with a guide rail, the conversion mechanism is fixed on the guide rail, and can realize translation on the guide rail, and the radiation source mechanism 2 is driven to translate on the rack through the translation of the conversion mechanism.
- the conversion mechanism is fixed on the rack 1 by the lifting mechanism, the conversion mechanism is lifted and lowered by the lifting mechanism, and the radiation source mechanism 2 is moved up and down by the lifting and lowering of the conversion mechanism.
- the rack 1 is provided with guide rails
- the guide rails are provided with sliders
- the conversion mechanism is connected with the sliders through the lifting mechanism
- the sliders can translate on the sliding rails to drive the lifting mechanism and the radiation source mechanism 2 on the rack.
- Translate, and the lifting mechanism can be used to realize the lifting and lowering of the conversion mechanism, and the radiation source mechanism 2 is driven to rise and fall through the lifting and lowering of the conversion mechanism.
- the lifting mechanism may be a scissor lifting mechanism, a cylinder lifting mechanism, etc., and the lifting mechanism is not specifically limited in this embodiment.
- the transmission mechanism 4 may at least include: a primary transmission component and a secondary transmission component; the primary transmission component is connected to the driving mechanism 3, and the secondary transmission component is connected to the radiation source mechanism 2; the driving mechanism 3 drives a The primary transmission assembly drives the secondary transmission assembly, and the secondary transmission assembly drives the radiation source mechanism 2 to switch between different working positions.
- the primary transmission mechanism may be directly connected with the secondary transmission mechanism, or a multi-stage transmission mechanism may be arranged between the connection of the primary transmission mechanism and the secondary transmission mechanism, and the driving mechanism 3 drives the primary transmission assembly, a
- the stage transmission assembly drives the multi-stage transmission mechanism
- the multi-stage transmission mechanism drives the secondary transmission assembly
- the secondary transmission assembly drives the radiation source mechanism 2 to switch between different working positions.
- the specific forms of the above-mentioned primary transmission assembly and secondary transmission assembly are also not limited.
- the primary transmission assembly may be any one of a sliding transmission mechanism, a connecting rod transmission mechanism, a gear transmission mechanism, a transmission belt mechanism, etc.; similarly, the secondary transmission assembly may also be a sliding transmission mechanism , any kind of transmission mechanism in connecting rod transmission mechanism, gear transmission mechanism, transmission belt mechanism, etc.
- the sliding transmission mechanism may specifically be: a mechanism composed of a slider and a sliding rail, and the sliding block moves along the sliding rail for power transmission;
- the link transmission mechanism may specifically be: connecting one or more connecting rods through a rotating pair
- the gear transmission mechanism can specifically be: a gear train formed by meshing a plurality of gears, and the power is transmitted through the meshing between the gears;
- the transmission belt mechanism can specifically be: a chain transmission mechanism, a belt transmission mechanism, etc.
- the embodiments of the present application do not limit the specific combination between the primary transmission assembly and the secondary transmission assembly.
- the primary transmission assembly is a screw transmission assembly
- the secondary transmission assembly can be a connecting rod transmission assembly.
- the screw transmission assembly is respectively connected with the drive mechanism 3 and the connecting rod transmission assembly
- the rod transmission assembly is connected with the shooting rod transmission assembly.
- the source mechanism 2 is connected, the drive mechanism 3 drives the screw transmission assembly, and the screw transmission assembly drives the connecting rod transmission assembly, so that the connecting rod transmission assembly drives the radiation source mechanism 2 to convert between different working positions; or, the primary transmission assembly
- Both the primary gear transmission assembly and the secondary gear transmission assembly are gear transmission assemblies (respectively, the primary gear transmission assembly and the secondary gear transmission assembly).
- the primary gear transmission assembly is connected to the drive mechanism 3 and the secondary gear transmission assembly
- the first stage gear transmission assembly is connected with the radiation source mechanism 2, the driving mechanism 3 drives the first stage gear transmission assembly, and the first stage gear transmission assembly drives the second stage gear transmission assembly, so that the second stage gear transmission assembly drives the radiation source mechanism 2 in different working positions.
- the secondary transmission component may be a chain transmission component.
- the gear transmission component is connected to the drive mechanism 3 and the chain transmission component respectively, and the chain transmission component is connected to the chain transmission component.
- the radiation source mechanism 2 is connected, the driving mechanism 3 drives the gear transmission assembly, and the gear transmission assembly drives the chain transmission assembly, so that the chain transmission assembly drives the radiation source mechanism 2 to switch between different working positions.
- the primary transmission assembly may include: slide rails 41 and sliders 42 ; the slide rails 41 are arranged on the beam of the frame 1 , and the sliders 42 are arranged on the slide rails 41 ; the secondary transmission The components are respectively connected with the slider 42 and the source mechanism 2; the drive mechanism 3 drives the slider 42 to move along the slide rail 41, the slider 42 drives the secondary transmission assembly, and the secondary transmission assembly drives the radiation source mechanism 2 between different working positions to convert.
- the specific shape of the slide rail 41 is not limited, for example, it may be a rail with a circular cross-section, a rail with a square cross-section, or a rail with an irregular cross-section, and so on.
- the sliding block 42 may be a seat cover with any shape that is arranged on the sliding rail 41 and can move along the sliding block 42 .
- the materials of the slide rail 41 and the slider 42 are not limited, and can be determined according to actual needs.
- the working position switching mode of the radiation source mechanism 2 can be divided into the following three situations: first, the radiation source mechanism 2 can only be turned to the left to switch from the body treatment working position It is the head treatment working position; the second type: the radiation source mechanism 2 can only be turned to the right to switch from the body treatment working position to the head treatment working position; the third type, the radiation source mechanism 2 can be turned to the left. It can be turned over and turned to the right to switch from the body treatment working position to the head treatment working position.
- the radiation source mechanism 2 can only be turned to the left to switch from the body treatment working position to the head treatment working position.
- the slider 42 is located on the slide rail 41 Then, as the slider 42 moves to the left along the slide rail 41, the slider 42 can drive the secondary transmission assembly, and the secondary transmission assembly then drives the radiation source mechanism 2 to turn left around its rotational axis to remove the The body treatment working position is switched to the head treatment working position.
- the radiation source mechanism 2 can only be turned to the right to switch from the body treatment working position to the head treatment working position.
- the slider 42 is located on the slide rail 41 Then, as the slider 42 moves to the right along the slide rail 41, the slider 42 can drive the secondary transmission assembly, and the secondary transmission assembly then drives the radiation source mechanism 2 to turn right around its rotational axis to remove the The body treatment working position is switched to the head treatment working position.
- the radiation source mechanism 2 can be turned to the left or the right to switch from the body treatment working position to the head treatment working position, when the radiation source mechanism 2 is in the horizontal position,
- the slider 42 is located in the middle of the slide rail 41.
- the slider 42 can drive the secondary transmission assembly, which in turn drives the radiation source mechanism 2 around its rotation axis Turn to the right to switch from the body treatment working position to the head treatment working position; if the slider 42 moves to the left along the slide rail 41, the slider 42 can drive the secondary transmission assembly, and the secondary transmission assembly drives the injection
- the source mechanism 2 is turned to the left around its rotational axis to switch from the body treatment working position to the head treatment working position.
- the secondary transmission assembly includes a connecting rod 43; 42 drives the connecting rod 43, and the connecting rod 43 drives the radiation source mechanism 2 to switch between different working positions.
- the slider 42 In the process of turning the radiation source mechanism 2 from the horizontal position to the vertical position, the slider 42 The connecting rod 43 is driven, and the connecting rod 43 pushes the radiation source mechanism 2 to realize the inversion of the radiation source mechanism 2, thereby making the radiation source mechanism 2 switch from the body treatment working position to the head treatment working position;
- the slider 42 drives the connecting rod 43, and the connecting rod 43 pulls the radiation source mechanism 2 to realize the inversion of the radiation source mechanism 2, so as to move the radiation source mechanism 2 from the head treatment working position to the rear. Switch back to the body therapy workstation.
- the radiation source mechanism 2 can be turned to the left or the right
- the slider 42 moves to the left , the connecting rod 43 is driven, and the connecting rod 43 pushes the radiation source mechanism 2 to turn the radiation source mechanism 2 to the left, thereby making the radiation source mechanism 2 switch from the body treatment working position to the head treatment working position;
- the slider 42 moves to the right, driving the connecting rod 43, and the connecting rod 43 pulls the source mechanism 2, so as to realize the inversion of the source mechanism 2, thereby turning the source mechanism 2 Switch from the head treatment working position to the body treatment working position;
- the slider 42 moves to the right, driving the connecting rod 43, and the connecting rod 43 pulls The radiation source mechanism 2 is turned to the right, so that the radiation source mechanism 2 is switched from the
- the slider 42 moves to the left, driving the connecting rod 43, and the connecting rod 43 pushes the radiation source mechanism 2, so as to realize the rotation of the radiation source mechanism 2, thereby switching the radiation source mechanism 2 from the head treatment working position back to the body part.
- Therapeutic workstation
- the connecting rod 43 in the embodiment of the present application may be a rod with a cross-section of any shape, for example, the cross-section may be a rectangle, a trapezoid, a square, a circle, and the like.
- the The above-mentioned transmission mechanism 4 including the primary transmission assembly and the secondary transmission assembly is provided on the two opposite beams of the frame 1 .
- any one of the above-mentioned two transmission mechanisms 4 is provided with a screw rod 44, and the screw rod 44 is arranged on the slide rail 41 through the slider 42; the driving mechanism 3 drives the screw rod 44, and the screw rod 44 The sliding block 42 is driven to move along the sliding rail 41 .
- one end of the screw rod 44 can be fixedly connected with the output shaft of the drive mechanism 3, and the other end of the screw rod 44 is disposed on the slide rail 41 through the slider 42.
- the screw 44 drives the slider 42 to move along the slide rail 41
- the slider 42 drives the connecting rod 43
- the connecting rod 43 drives the radiation source mechanism 2 to turn over.
- FIG. 2 is a schematic structural diagram of another radiotherapy system provided by an embodiment of the application.
- the first-stage transmission assembly may include: a first gear 45 ; the first gear 45 is rotatably connected to the drive mechanism 3 , the first gear 45 is meshed with the secondary transmission assembly, the drive mechanism 3 drives the first gear 45 to rotate, and the first gear 45 drives the secondary transmission assembly, so that the secondary transmission assembly drives the radiation source mechanism 2 to turn over.
- the basic structural parameters of the first gear 45 are not limited, and can be determined according to actual needs.
- the specific form of the secondary transmission assembly is also not limited, for example, the secondary transmission assembly may be a gear transmission assembly, or a chain transmission assembly or the like.
- the working position switching mode of the radiation source mechanism 2 can also be divided into the following three situations: First, the radiation source mechanism 2 can only be turned to the left to treat the working position from the body. Switch to the head treatment working position; the second type: the radiation source mechanism 2 can only be turned to the right to switch from the body treatment working position to the head treatment working position; the third type, the radiation source mechanism 2 can be turned to the left It can be turned to the right side to switch from the body treatment working position to the head treatment working position.
- the radiation source mechanism 2 can only be turned to the left to switch from the body treatment working position to the head treatment working position, when the radiation source mechanism 2 is turned from the horizontal position to the vertical position, the first gear 45 rotates clockwise to drive the secondary transmission assembly, so that the secondary transmission assembly drives the radiation source mechanism 2 to turn over, so as to switch from the body treatment working position to the head treatment working position.
- the radiation source mechanism 2 can only be turned to the right to switch from the body treatment working position to the head treatment working position, when the radiation source mechanism 2 is turned from the horizontal position to the vertical position, the first gear 45 rotates in the counterclockwise direction, and then drives the secondary transmission assembly, so that the secondary transmission assembly drives the radiation source mechanism 2 to turn over, so as to switch from the body treatment working position to the head treatment working position.
- the radiation source mechanism 2 can be turned to the left or the right to switch from the body treatment working position to the head treatment working position, when the radiation source mechanism 2 is in the horizontal position, If the first gear 45 rotates counterclockwise, the radiation source mechanism 2 is turned to the right to switch from the body treatment working position to the head treatment working position; if the first gear 45 rotates clockwise, the radiation source The mechanism 2 is turned to the left to switch from the body treatment working position to the head treatment working position.
- the secondary transmission assembly may include a second gear 46 ; the second gear 46 is fixedly connected to the rotation shaft of the radiation source mechanism 2 , and the second gear 46 is externally meshed with the first gear 45 , The first gear 45 drives the second gear 46 to rotate, and the second gear 46 drives the radiation source mechanism 2 to switch between different working positions.
- the second gear 46 can be any gear that can be externally meshed with the first gear 45 , and the basic structural parameters of the second gear 46 are not limited and can be determined according to actual needs.
- the second gear 46 may be a sector gear.
- the angle formed by the two sides of the sector gear is not limited, and can be set according to actual needs.
- the radiation source mechanism 2 can only be turned to the left to switch from the body treatment working position to the head treatment working position, when the radiation source mechanism 2 is in the horizontal position, the first The gear 45 and the second gear 46 mesh with the leftmost side of the second gear 46 (sector gear).
- the first gear 45 rotates in the clockwise direction
- the second gear 46 is driven to rotate in the counterclockwise direction, thereby driving the radiation source mechanism 2 to turn to the left, so as to switch from the body treatment working position to the head treatment working position.
- the radiation source mechanism 2 can only be turned to the right to switch from the body treatment working position to the head treatment working position, when the radiation source mechanism 2 is in the horizontal position, the first gear 45 and the The second gear 46 meshes with the rightmost side of the second gear 46 (sector gear).
- the first gear 45 rotates in the counterclockwise direction, thereby driving the second gear 45.
- the gear 46 rotates in the clockwise direction, thereby driving the radiation source mechanism 2 to turn to the right, so as to switch from the body treatment working position to the head treatment working position.
- the radiation source mechanism 2 can be turned to the left or the right to switch from the body treatment working position to the head treatment working position, when the radiation source mechanism 2 is in the horizontal position
- the first gear 45 and the second gear 46 mesh with the middle position of the second gear 46 (sector gear).
- the second gear 46 rotates counterclockwise.
- the radiation source mechanism 2 to turn to the left to switch from the body treatment working position to the head treatment working position; if the first gear 45 rotates counterclockwise, the second gear 46 rotates clockwise to drive the radiation source
- the mechanism 2 is turned to the right to switch from the body treatment working position to the head treatment working position.
- FIG. 3 is a schematic structural diagram of another radiotherapy system provided by an embodiment of the present application.
- the secondary transmission assembly may include: a chain 47; the chain 47 is meshed with the first gear 45, the two ends of the chain 47 are respectively connected with the edges of the two ends of the radiation source mechanism 2, and the first gear 45 drives the chain 47 to move , the chain 47 drives the radiation source mechanism 2 to switch between different working positions.
- the specific shape and type of the chain 47 are also not limited.
- the edges of the chain 47 and the two ends of the radiation source mechanism 2 may be fixedly connected, or may be rotationally connected.
- the working position switching mode of the radiation source mechanism 2 can also be divided into the following three cases: the first one, the radiation source mechanism 2 can only be turned to the left to switch from the body treatment working position to The head treatment working position; the second type: the radiation source mechanism 2 can only be turned to the right to switch from the body treatment working position to the head treatment working position; the third type, the radiation source mechanism 2 can be turned to the left. , and can be turned to the right to switch from the body treatment position to the head treatment position.
- the radiation source mechanism 2 can only be turned to the left to switch from the body treatment working position to the head treatment working position, when the radiation source mechanism 2 is in the horizontal position, the first The gear 45 and the chain 47 are meshed with the leftmost end of the chain 47.
- the first gear 45 rotates in the counterclockwise direction, thereby driving the chain 47 to move to the left, thereby driving the The radiation source mechanism 2 is turned to the left to switch from the body treatment working position to the head treatment working position.
- the radiation source mechanism 2 can only be turned to the right to switch from the body treatment working position to the head treatment working position, when the radiation source mechanism 2 is in the horizontal position, the first gear 45 and the The chain 47 is engaged with the rightmost end of the chain 47.
- the first gear 45 rotates in a clockwise direction, thereby driving the chain 47 to move to the right, and then driving the radiation source mechanism. 2Flip to the right to switch from the body treatment position to the head treatment position.
- the radiation source mechanism 2 can be turned to the left or the right to switch from the body treatment working position to the head treatment working position, when the radiation source mechanism 2 is in the horizontal position
- the first gear 45 and the chain 47 are engaged in the middle position of the chain 47.
- the chain 47 moves to the right, which in turn drives the radiation source mechanism 2 to turn to the right, so that the Switch from the body treatment working position to the head treatment working position;
- the first gear 45 rotates in the counterclockwise direction, the chain 47 moves to the left, and then drives the radiation source mechanism 2 to turn to the left, so that the body treatment working position is Switch to head treatment station.
- the driving mechanism 3 may include a motor, and the motor is fixed on the beam of the frame 1 .
- the parameters of the motor such as the type of the motor, the output torque, the output speed, etc., are not limited, and can be selected according to actual needs.
- the drive mechanism 3 may further include: a reducer; the input shaft of the reducer is connected with the output shaft of the motor, and the reducer drives the transmission mechanism 4, so that the transmission mechanism 4 drives the radiation source mechanism 2 in different working positions convert between.
- the motor is used to generate driving torque to provide power (driving torque) for realizing the inversion of the radiation source mechanism 2; the reducer transmits the driving torque generated by the motor to the transmission mechanism 4, and at the same time, reduces the output to the transmission mechanism 4 speed.
- the type of the reducer is not limited, for example, a worm gear reducer can be selected, and a gear reducer can also be selected.
- the advantages of the worm gear reducer are: it has a reverse self-locking function and a large reduction ratio, but it also has the following disadvantages: large volume, low transmission efficiency, and low precision.
- the gear reduction machine has the advantages of small size, large transmission torque, high transmission efficiency and low energy consumption. Therefore, the appropriate type of reducer can be selected according to actual needs.
- the parameters of the reducer such as: reduction ratio, transmission torque, etc.
- the parameters of the reducer are not limited, and can be selected according to actual needs.
- the radiotherapy system further includes a position detection mechanism; the position detection mechanism is used to detect the position of the radiation source mechanism.
- the position detection mechanism detects the rotation position of the radiation source mechanism 2 in real time.
- the position detection mechanism may be one of an encoder, a grating ruler, and a detection switch.
- the encoder and the grating scale can detect the flip angle of the radiation source mechanism 2 in real time.
- the output of the encoder or grating scale can be the corresponding moving distance or flip angle.
- the position detection device may be a detection switch, the detection switch is provided on the rack 1 , and the radiation source mechanism 2 is provided with a switch striker.
- the switch striker on the radiation source mechanism 2 touches the detection switch on the frame 1 to trigger the detection switch, and the radiation source mechanism 2 reaches the specified position.
- the specified position is the position of the radiation source mechanism 2 at 54.5°.
- a detection switch is provided on the rack 1 corresponding to the position where the radiation source mechanism 2 is turned 54.5°.
- the radiation source The switch striker on the mechanism 2 triggers the detection switch, and when the detection switch is triggered, the radiation source mechanism 2 flips to the designated position.
- the radiotherapy system further includes a locking mechanism; when the position detection mechanism detects that the radiation source mechanism is switched to a designated position, it sends a locking instruction to the locking mechanism; the locking mechanism locks the radiation source mechanism according to the locking instruction to the specified position.
- the radiation source mechanism 2 is locked to the specified position by the locking device, so that the radiation source mechanism 2 is more stable when working at the specified position.
- the locking mechanism may be a speed reducer in the driving mechanism, and the locking mechanism may also be any device capable of fixing a position.
- the position detection mechanism is an encoder or a grating ruler. During the flipping process of the radiation source mechanism 2, the encoder or the grating ruler detects the flip angle of the radiation source mechanism 2 in real time.
- the encoder or grating ruler When it is detected that the radiation source mechanism 2 is flipped to 54.5° , the encoder or grating ruler sends a locking instruction to the reducer; or the encoder or grating ruler sends an in-position instruction to the controller, and the controller sends a locking instruction to the reducer after receiving the in-position instruction; After the tightening command, lock the radiation source mechanism 2 to the 54.5° position.
- the position detection mechanism is a detection switch provided on the rack and a switch striker provided on the radiation source mechanism 2 .
- the switch bump on the radiation source mechanism 2 triggers the detection switch on the frame 1, and after the detection switch is triggered, a locking instruction is sent to the reducer;
- the controller sends an in-position command, and after receiving the in-position command, the controller sends a locking command to the reducer; after receiving the locking command, the reducer locks the radiation source mechanism 2 to the 54.5° position.
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Abstract
一种放疗系统，包括：转换机构、机架（1）以及射源机构（2）；转换机构设置在机架（1）上，转换机构包括：驱动机构（3）和传动机构（4）；传动机构（4）与射源机构（2）连接，以在驱动机构（3）的驱动下带动射源机构（2）在不同工作位之间进行转换，其中，射源机构（2）发出的射束在不同工作位的射束方向不同。放疗系统中的转换机构设置于机架（1）上，在转换机构的带动下，射源机构（2）可以在不同工作位之间进行转换，从而可以根据实际需要将射源机构（2）产生的射线聚焦于不同的焦点，进行疾病治疗，扩大了放疗系统的治疗范围。
Description
本申请实施例涉及放射治疗技术领域，尤其涉及一种放疗系统。
放疗是目前癌症治疗的主要手段之一，其主要原理是：通过放疗设备射源机构产生的射线聚焦于病变区域(靶点)，使得病变区域产生局灶性的坏死或功能改变而达到治疗疾病的目的。
现阶段，放疗设备中的射源机构固定于设备的机架之上，射源机构产生的射线只能聚焦于某一固定焦点，因此，设备治疗范围较小。
发明内容
本申请的目的在于提出一种放疗系统，用于实现对放疗系统中射源机构的翻转，扩大放疗系统的治疗范围。
本申请实施例提供了一种放疗系统，所述放疗系统包括：转换机构、机架以及射源机构；所述转换机构设置在所述机架上，所述转换机构包括：驱动机构和传动机构；所述传动机构与所述射源机构连接，以在所述驱动机构的驱动下带动所述射源机构在不同工作位之间进行转换，其中，所述射源机构发出的射束在不同工作位的射束方向不同。
在其中一个实施例中，所述传动机构至少包括一级传动组件以及二级传动组件；所述一级传动组件分别与所述驱动机构连接，所述二级传动组件与所述射源机构连接；所述驱动机构驱动所述一级传动组件，所述一级传动组件带动所述二级传动组件，所述二级传动组件带动所述射源机构在不同工作位之间进行转换。
在其中一个实施例中，所述一级传动组件和/或所述二级传动组件 为滑动传动机构、连杆传动机构、齿轮传动机构、传动带机构中的一种。
在其中一个实施例中，所述一级传动组件包括：滑轨以及滑块；所述滑轨设置于所述机架的横梁，所述滑块设置于所述滑轨上；所述二级传动组件分别与所述滑块以及所述射源机构连接；所述驱动机构驱动所述滑块沿所述滑轨运动，所述滑块带动所述二级传动组件，所述二级传动组件带动所述射源机构在不同工作位之间进行转换。
在其中一个实施例中，所述二级传动组件包括连杆；所述连杆的一端与所述滑块转动连接，所述连杆的另一端与所述射源机构的边沿转动连接；所述滑块带动所述连杆，所述连杆带动所述射源机构在不同工作位之间进行转换。
在其中一个实施例中，所述机架相对的两根横梁上均设置有所述传动机构。
在其中一个实施例中，两个所述传动机构中的任意一个上设置有丝杆，所述丝杆穿过所述滑块设置于所述滑轨上；所述驱动机构驱动所述丝杆，所述丝杆带动所述滑块沿所述滑轨运动。
在其中一个实施例中，所述一级传动组件包括第一齿轮；所述第一齿轮与所述驱动机构转动连接，所述第一齿轮与所述二级传动组件啮合连接，所述驱动机构驱动所述第一齿轮旋转，所述第一齿轮带动所述二级传动组件，以使所述二级传动组件带动所述射源机构在不同工作位之间进行转换。
在其中一个实施例中，所述二级传动组件包括第二齿轮；所述第二齿轮与所述射源机构的旋转轴固定连接，所述第二齿轮与所述第一齿轮外啮合连接，所述第一齿轮带动所述第二齿轮旋转，所述第二齿轮带动所述射源机构在不同工作位之间进行转换。
在其中一个实施例中，所述二级传动组件包括链条；所述链条与所述第一齿轮啮合连接，所述链条的两端分别与所述射源机构两端的边沿连 接，所述第一齿轮带动所述链条移动，所述链条带动所述射源机构在不同工作位之间进行转换。
在其中一个实施例中，所述驱动机构包括：电机；所述电机固定于所述机架的横梁；所述电机驱动所述传动机构，以使所述传动机构带动所述射源机构在不同工作位之间进行转换。
在其中一个实施例中，所述驱动机构还包括：减速器；所述减速器的输入轴与所述电机的输出轴连接，所述减速器的输出轴与所述传动机构连接，所述减速器驱动所述传动机构，以使所述传动机构带动所述射源机构在不同工作位之间进行转换。
在其中一个实施例中，所述射源机构设置于所述机架上，所述驱动机构固定于所述机架，所述传动机构分别与所述驱动机构以及所述射源机构连接。
在其中一个实施例中，所述射源机构设置在所述转换机构上。
在其中一个实施例中，所述射源机构可在机架上平移和/或升降。
在其中一个实施例中，所述放疗系统还包括位置检测机构；所述位置检测机构用于检测所述射源机构的位置。
在其中一个实施例中，所述放疗系统还包括锁紧机构；所述位置检测机构检测到所述射源机构转换到指定位置时，向所述锁紧机构发送锁紧指令；所述锁紧机构根据所述锁紧指令将所述射源机构锁紧至所述指定位置。
本申请实施例中，放疗系统中的转换机构设置于机架上，在转换机构的带动下，射源机构可以在不同工作位之间进行转换，这样，可以根据实际需要将射源机构产生的射线聚焦于不同的焦点，进行疾病治疗，扩大了放疗系统的治疗范围。
通过阅读参照以下附图所作的对非限制性实施例所作的详细描述，本申请的其它特征、目的和优点将会变得更明显：
图1为本申请实施例提供的一种放疗系统的结构示意图；
图2为本申请实施例提供的另一种放疗系统的结构示意图；
图3为本申请实施例提供的又一种放疗系统的结构示意图。
标号说明
1、机架 2、射源机构
3、驱动机构 4、传动机构
41、滑轨 42、滑块
43、连杆 44、丝杆
45、第一齿轮 46、第二齿轮
47、链条
在本申请的术语是仅仅出于描述特定实施例的目的，而非旨在限制本申请。在本申请和所附权利要求书中所使用的单数形式的“一种”、“所述”和“该”也旨在包括多数形式，除非上下文清楚地表示其他含义。还应当理解，本文中使用的术语“和/或”是指并包含一个或多个相关联的列出项目的任何或所有可能组合。
应当理解，本申请说明书以及权利要求书中使用的“第一”“第二”以及类似的词语并不表示任何顺序、数量或者重要性，而只是用来区分不同的组成部分。同样，“一个”或者“一”等类似词语也不表示数量限制，而是表示存在至少一个。除非另行指出，“前部”、“后部”、“下部”和/或 “上部”等类似词语只是为了便于说明，而并非限于一个位置或者一种空间定向。“包括”或者“包含”等类似词语意指出现在“包括”或者“包含”前面的元件或者物件涵盖出现在“包括”或者“包含”后面列举的元件或者物件及其等同，并不排除其他元件或者物件。“连接”或者“相连”等类似的词语并非限定于物理的或者机械的连接，而且可以包括电性的连接，不管是直接的还是间接的。
放疗设备一般包括机架和设置在机架上的射源机构，其中，射源机构中放置有源匣，源匣内设置有放射源。放疗设备主要是通过放射源产生的射线聚焦于病变区域，来使得病变区域产生局灶性的坏死或功能改变而达到治疗疾病的目的。
常规放疗设备中，射源机构是固定在机架之上的，射源机构产生的射线只能聚焦于某一固定焦点，治疗范围较小。基于上述原因，根据治疗区域的不同，通常将放疗设备分为两类：用于头部区域治疗的头部放疗设备，和用于除头部以外的其他区域治疗的体部放疗设备。其中，在头部放疗设备中，射源机构竖直放置于机架之上，此时，射源机构发出的射束的方向为水平方向；在体部放疗设备中，射源机构水平放置于机架之上，射源机构发出的射束的方向为竖直方向。
目前，由于现有放疗设备的治疗范围有限，一台放疗设备只能用于某一区域癌症的治疗，无法同时兼顾头部区域癌症和体部区域癌症的治疗，因此，为适应更多的治疗需求，需要同时购置头部放疗设备和体部放疗设备，成本较高。
本申请实施例提供的放疗系统，可以使得射源机构在不同工作位之间进行转换，扩大放疗系统的治疗范围。示例的，转换机构可以使得射源机构 在0°-90°之间进行翻转。可以理解的，射源机构在0°-90°范围内，都可以用于对体部进行治疗；同样的，射源机构在0°-90°范围内，都可以用于对头部进行治疗。当射源机构位于水平位置时，也即射源机构在0°位置可以进行体部区域的治疗，此时射源机构处于体部治疗工作位；当射源机构进行翻转时，即翻转角度大于0°时，可以进行头部区域的治疗，此时射源机构处于头部治疗工作位。优选地，为了获得更好的治疗效果，可以将射源机构翻转角度为54.5°时的位置作为头部治疗工作位，此时，射源机构产生的射线能够更好地聚焦于头部病变区域。
参见图1，图1为本申请实施例提供的一种放疗系统的结构示意图。放疗系统包括：转换机构、机架1以及射源机构2；转换机构设置在机架上，转换机构包括：驱动机构3和传动机构4；传动机构4与射源机构2连接，以在驱动机构3的驱动下带动射源机构2在不同工作位之间进行转换，其中，射源机构2发出的射束在不同工作位的射束方向不同。
示例的，射源机构2的工作位可以包括：体部治疗工作位和头部治疗工作位。射源机构2位于不同工作位时，射束方向也不同。射束方向为射源机构2中多个射线源形成的聚焦束的中心线，该中心线远离射源机构的方向。例如，射源装置2在0°位置时，射束方向垂直于水平面；射源装置2在90°位置时，射束方向平行于水平面；射源装置2在54.5°位置时，射束方向与水平面呈54.5°夹角。示例的，体部治疗工作位为射源装置2在0°位置；头部治疗工作位为射源装置2在54.5°位置。
本申请实施例中，机架1可以为能够支撑射源机构2进行翻转的具有任意形状的支撑架。示例的，机架1可以由多个部件组合而成。例如：机架1可以由4个支撑立柱，以及2个横梁组成。具体的，4个支撑立柱可以固定于安装放疗系统的机房地面，4个固定点的连线形成长方形，横梁设置于支撑立柱之间，2个横梁相互平行。
示例的，支撑立柱可以为具有任意形状的柱体，可以为由钣金焊接而成的凹槽形柱体；也可以为一体成型的实体立柱，例如：一体成型的截面为长方形的实体立柱，或者，一体成型的截面为圆形的实体立柱等等。本申请实施例中，对于机架1的材料也不做限定，为提高机架1的支撑强度，优选地，可以采用钢、生铁、铁合金、铸铁等常用的金属材料。
示例的，转换机构包括：驱动机构3和传动机构4；传动机构4分别分别与驱动机构3和射源机构2连接。以在所述驱动机构的驱动下带动所述射源机构在不同工作位之间进行转换。转换机构固定在机架的横梁上。示例的，驱动机构3可以为任意的能够向传动机构4提供动力(驱动转矩)的组件，本申请实施例中对于驱动机构3的具体形式不做限定。本申请实施例中的传动机构4是将驱动机构3提供的动力(驱动转矩)传动至射源机构2，以使射源机构2翻转，进而在不同工作位之间转换的机构。对于传动机构4的具体形式不做限定。例如，传动机构4可以为滑动传动机构、连杆传动机构、传动带机构等中的一种。示例的，传动机构4可以为多级传动机构，其中，每一级传动机构都可以是滑动传动机构、连杆传动机构、传动带机构等中的一种。也就是说，传动机构4可以为上述多种传动机构之间的组合。
在其中一个实施例中，射源机构设置于机架上，驱动机构固定于机架，传动机构分别与驱动机构以及射源机构连接。
示例的，射源机构2可以设置在机架1的两个横梁之间且相对于横梁翻转，射源机构2的旋转轴可以垂直于上述2个横梁。射源机构2可以绕其旋转轴向两侧翻转，如图1所示，可以向左侧翻转，或者，可以向右侧翻转。通过翻转以在不同工作位之间进行切换。由于处于不同工作位时，射源机构2发出的射束的方向不同，因此，可以根据实际需要将射源机构2产生的射线聚焦于不同的焦点，进行疾病治疗。
在其中一个实施例中，射源机构设置在转换机构上。
示例的，转换机构设置在机架上，也就是驱动机构3以及传动机构4均设置于机架上。射源机构2固定设置在转换机构上，通过转换机构与机架1固定。示例的，两个横梁上均设置有转换机构，射源机构2可以设置在两个横梁上的转换机构之间。转换机构可以带动射源机构2翻转，以在不同工作位之间进行切换。
在其中一个实施例中，射源机构可在机架上平移和/或升降。
示例的，射源机构2固定设置在转换机构上，通过转换机构与机架1固定。机架1上设置有导轨，转换机构固定在导轨上，并可以在导轨上实现平移，通过转换机构的平移带动射源机构2在机架上进行平移。示例的，转换机构通过升降机构固定在机架1上，通过升降机构实现转换机构的升降，通过转换机构的升降带动射源机构2进行升降。示例的，机架1上设置有导轨，导轨上设置有滑块，转换机构通过升降机构与滑块连接，滑块能够在滑轨上平移，以带动升降机构以及射源机构2在机架上平移，并且可以通过升降机构实现转换机构的升降，通过转换机构的升降带动射源机构2进行升降。其中，升降机构可以是剪叉升降机构、气缸升降机构等，本实施例不对升降机构做具体限定。通过射源机构的平移和/或升降，能够使射源机构在不同工作位置时，产生的射线聚焦于相同的焦点。
在其中一个实施例中，传动机构4至少可以包括：一级传动组件以及二级传动组件；一级传动组件与驱动机构3连接，二级传动组件与射源机构2连接；驱动机构3驱动一级传动组件，一级传动组件带动二级传动组件，二级传动组件带动射源机构2在不同工作位之间进行转换。
本申请实施例中，一级传动机构可以直接与二级传动机构连接，也可以在一级传动机构和二级传动机构连接之间设置多级传动机构，驱动机构3驱动一级传动组件，一级传动组件带动多级传动机构，多级传动机构带动二级传动组件，二级传动组件带动射源机构2在不同工作位之间进行转换。对于上述一级传动组件以及二级传动组件的具体形式也不做限定。在 其中一个实施例中，一级传动组件可以为滑动传动机构、连杆传动机构、齿轮传动机构、传动带机构等中的任意一种传动机构；同样地，二级传动组件也可以为滑动传动机构、连杆传动机构、齿轮传动机构、传动带机构等中的任意一种传动机构。其中，滑动传动机构具体可以为：由滑块和滑轨组成的机构，滑块沿滑轨运动，以进行动力传递；连杆传动机构具体可以为：通过转动副将1个或多个连杆联接而成的机构；齿轮传动机构具体可以为：由多个齿轮啮合而成的齿轮系，通过齿轮之间的啮合来进行动力的传递；传动带机构具体可以为：链条传动机构、带传动机构等。
示例的，本申请实施例中对于一级传动组件和二级传动组件之间具体如何组合也不做限定。例如，一级传动组件为丝杆传动组件时，二级传动组件可以为连杆传动组件，此种情况下，丝杆传动组件分别与驱动机构3和连杆传动组件连接，杆传动组件与射源机构2连接，驱动机构3驱动丝杆传动组件，丝杆传动组件带动连杆传动组件，以使连杆传动组件带动射源机构2在不同工作位之间进行转换；或者，一级传动组件和二级传动组件均为齿轮传动组件(分别为一级齿轮传动组件和二级齿轮传动组件)，此种情况下，一级齿轮传动组件分别与驱动机构3和二级齿轮传动组件连接，二级齿轮传动组件与射源机构2连接，驱动机构3驱动一级齿轮传动组件，一级齿轮传动组件带动二级齿轮传动组件，以使二级齿轮传动组件带动射源机构2在不同工作位之间进行转换；又或者，一级传动组件为齿轮传动组件时，二级传动组件可以为链条传动组件，此种情况下，齿轮传动组件分别与驱动机构3和链条传动组件连接，链条传动组件与射源机构2连接，驱动机构3驱动齿轮传动组件，齿轮传动组件带动链条传动组件，以使链条传动组件带动射源机构2在不同工作位之间进行转换。
参见图1，在其中一个实施例中，一级传动组件可以包括：滑轨41以及滑块42；滑轨41设置于机架1的横梁，滑块42设置于滑轨41上；二级传动组件分别与滑块42以及射源机构2连接；驱动机构3驱动滑块 42沿滑轨41运动，滑块42带动二级传动组件，二级传动组件带动射源机构2在不同工作位之间进行转换。
本申请实施例中，对于滑轨41的具体形状不做限定，例如：可以是截面为圆形的轨道，也可以是截面为方形的轨道，还可以是截面为不规则形状的轨道等等。滑块42可以为设置在滑轨41上，且可沿滑块42运动的具有任意形状的座套。
示例的，本申请实施例中，对于滑轨41和滑块42的材料也不做限定，可以根据实际需要确定。
参见图1，本申请实施例中，射源机构2的工作位切换方式可以分为以下三种情况：第一种，射源机构2仅能向左侧翻转，以从体部治疗工作位切换为头部治疗工作位；第二种：射源机构2仅能向右侧翻转，以从体部治疗工作位切换为头部治疗工作位；第三种，射源机构2既可以向左侧翻转，又可以向右侧翻转，以从体部治疗工作位切换为头部治疗工作位。
针对上述第一种情况：射源机构2仅能向左侧翻转，以从体部治疗工作位切换为头部治疗工作位，当射源机构2位于水平位置时，滑块42位于滑轨41的最右端，之后，随着滑块42沿滑轨41向左移动，滑块42可以带动二级传动组件，二级传动组件再带动射源机构2绕其旋转轴向左侧翻转，以从体部治疗工作位切换为头部治疗工作位。
针对上述第二种情况：射源机构2仅能向右侧翻转，以从体部治疗工作位切换为头部治疗工作位，当射源机构2位于水平位置时，滑块42位于滑轨41的最左端，之后，随着滑块42沿滑轨41向右移动，滑块42可以带动二级传动组件，二级传动组件再带动射源机构2绕其旋转轴向右侧翻转，以从体部治疗工作位切换为头部治疗工作位。
针对上述第三种情况：射源机构2既可以向左侧翻转，又可以向右侧翻转，以从体部治疗工作位切换为头部治疗工作位，当射源机构2位于水平位置时，滑块42位于滑轨41的中间位置，之后，若滑块42沿滑轨41向右移动，则滑块42可以带动二级传动组件，二级传动组件再带动射源机构2绕其旋转轴向右侧翻转，以从体部治疗工作位切换为头部治疗工作位；若滑块42沿滑轨41向左移动，则滑块42可以带动二级传动组件，二级传动组件再带动射源机构2绕其旋转轴向左侧翻转，以从体部治疗工作位切换为头部治疗工作位。
参见图1，在其中一个实施例中，二级传动组件包括连杆43；连杆43的一端与滑块42转动连接，连杆43的另一端与射源机构2的边沿转动连接；滑块42带动连杆43，连杆43带动射源机构2在不同工作位之间进行转换。
示例的，针对射源机构2仅能向一侧(左侧或者右侧)翻转，以进行工作位切换的情况，在将射源机构2由水平位置向垂直位置翻转的过程中，滑块42带动连杆43，连杆43推动射源机构2，以实现射源机构2的翻转，进而使得射源机构2从体部治疗工作位切换至头部治疗工作位；在将射源机构2由垂直位置向水平位置翻转的过程中，滑块42带动连杆43，连杆43则拉动射源机构2，以实现射源机构2的翻转，从而将射源机构2从头部治疗工作位再切换回体部治疗工作位。
参见图1，针对射源机构2既可以向左侧翻转，又可以向右侧翻转的情况，在将射源机构2由水平位置沿左侧翻转至垂直位置过程中，滑块42向左移动，带动连杆43，连杆43推动射源机构2，以实现射源机构2向左翻转，进而使得射源机构2从体部治疗工作位切换至头部治疗工作位；此后，在将射源机构2由垂直位置翻转回水平位置过程中，滑块42向右移动，带动连杆43，连杆43则拉动射源机构2，以实现射源机构2的翻转，从而将射源机构 2从头部治疗工作位再切换回体部治疗工作位；在将射源机构2由水平位置沿右侧翻转至垂直位置过程中，滑块42向右移动，带动连杆43，连杆43拉动射源机构2，以实现射源机构2向右翻转，进而使得射源机构2从体部治疗工作位切换至头部治疗工作位；此后，在将射源机构2由垂直位置翻转回水平位置过程中，滑块42向左移动，带动连杆43，连杆43则推动射源机构2，以实现射源机构2回转，从而将射源机构2从头部治疗工作位再切换回体部治疗工作位。
本申请实施例中的连杆43可以是截面为任意形状的杆，例如：截面可以为长方形、梯形、正方形、圆形等等。
由于射源机构2的尺寸和质量均较大，为避免射源机构2在翻转过程中出现卡滞，保证射源机构2的翻转更加顺畅，参见图1，在其中一个实施例中，可以在机架1相对的两根横梁上均设置上述包括一级传动组件以及二级传动组件的传动机构4。
在其中一个实施例中，上述两个传动机构4中的任意一个上设置有丝杆44，丝杆44穿过滑块42设置于滑轨41上；驱动机构3驱动丝杆44，丝杆44带动滑块42沿滑轨41运动。
示例的，丝杆44的一端可以与驱动机构3的输出轴固连，丝杆44的另一端穿过滑块42设置于滑轨41上，驱动机构3的输出轴带动丝杆44转动时，丝杆44则带动滑块42沿滑轨41运动，滑块42带动连杆43，连杆43则带动射源机构2进行翻转。
参见图2，图2为本申请实施例提供的另一种放疗系统的结构示意图，在该实施例中，一级传动组件可以包括：第一齿轮45；第一齿轮45与驱动机构3转动连接，第一齿轮45与二级传动组件啮合连接，驱动机构3驱动第一齿轮45旋转，第一齿轮45带动二级传动组件，以使二级传动组件带动 射源机构2翻转。
本申请实施例中，对于第一齿轮45的基本结构参数不做限定，可以根据实际需要来确定。另外，对于二级传动组件的具体形式也不做限定，例如，二级传动组件可以为齿轮传动组件，也可以为链条传动组件等。
参见图2，本申请实施例中，射源机构2的工作位切换方式也可以分为以下三种情况：第一种，射源机构2仅能向左侧翻转，以从体部治疗工作位切换为头部治疗工作位；第二种：射源机构2仅能向右侧翻转，以从体部治疗工作位切换为头部治疗工作位；第三种，射源机构2既可以向左侧翻转，又可以向右侧翻转，以从体部治疗工作位切换为头部治疗工作位。
针对上述第一种情况：射源机构2仅能向左侧翻转，以从体部治疗工作位切换为头部治疗工作位，当射源机构2从水平位置向垂直位置翻转时，第一齿轮45沿顺时针方向转动，进而带动二级传传动组件，以使二级传动组件带动射源机构2翻转，以从体部治疗工作位切换为头部治疗工作位。
针对上述第二种情况：射源机构2仅能向右侧翻转，以从体部治疗工作位切换为头部治疗工作位，当射源机构2从水平位置向垂直位置翻转时，第一齿轮45沿逆时针方向转动，进而带动二级传动组件，以使二级传动组件带动射源机构2翻转，以从体部治疗工作位切换为头部治疗工作位。
针对上述第三种情况：射源机构2既可以向左侧翻转，又可以向右侧翻转，以从体部治疗工作位切换为头部治疗工作位，当射源机构2位于水平位置时，若第一齿轮45沿逆时针方向转动，则射源机构2向右侧翻转，以从体部治疗工作位切换为头部治疗工作位；若第一齿轮45沿顺时针方向转动，则射源机构2向左侧翻转，以从体部治疗工作位切换为头部治疗工作位。
参见图2，在其中一个实施例中，二级传动组件可以包括第二齿轮46；第二齿轮46与射源机构2的旋转轴固定连接，第二齿轮46与第一齿轮45外啮合连接，第一齿轮45带动第二齿轮46旋转，第二齿轮46带动射源机构2在不同工作位之间进行转换。
本申请实施例中，第二齿轮46可以为任意的能够与第一齿轮45外啮合连接的齿轮，对于第二齿轮46的基本结构参数不做限定，可以根据实际需要来确定。
示例的，为了节省空间，第二齿轮46可以为扇形齿轮。本申请实施例中，对于扇形齿轮的两个边形成的夹角不做限定，可以根据实际需要来设定。
示例的，针对上述第一种情况：射源机构2仅能向左侧翻转，以从体部治疗工作位切换为头部治疗工作位的情况，当射源机构2位于水平位置时，第一齿轮45与第二齿轮46啮合于第二齿轮46(扇形齿轮)的最左侧，在将射源机构2由水平位置向垂直位置翻转的过程中，第一齿轮45沿顺时针方向转动，进而带动第二齿轮46沿逆时针方向转动，进而带动射源机构2向左侧翻转，以从体部治疗工作位切换为头部治疗工作位。
针对上述第二种情况：射源机构2仅能向右侧翻转，以从体部治疗工作位切换为头部治疗工作位的情况，当射源机构2位于水平位置时，第一齿轮45与第二齿轮46啮合于第二齿轮46(扇形齿轮)的最右侧，在将射源机构2由水平位置向垂直位置翻转的过程中，第一齿轮45沿逆时针方向转动，进而带动第二齿轮46沿顺时针方向转动，进而带动射源机构2向右侧翻转，以从体部治疗工作位切换为头部治疗工作位。
针对上述第三种情况：射源机构2既可以向左侧翻转，又可以向右侧翻转，以从体部治疗工作位切换为头部治疗工作位的情况，当射源机构2位于水平位置时，第一齿轮45与第二齿轮46啮合于第二齿轮46(扇形齿轮) 的中间位置，此时，若第一齿轮45沿顺时针方向转动，则第二齿轮46沿逆时针方向转动，带动射源机构2向左侧翻转，以从体部治疗工作位切换为头部治疗工作位；若第一齿轮45沿逆时针方向转动，则第二齿轮46沿顺时针方向转动，带动射源机构2向右侧翻转，以从体部治疗工作位切换为头部治疗工作位。
参见图3，图3为本申请实施例提供的又一种放疗系统的结构示意图。在该实施例中，二级传动组件可以包括：链条47；链条47与第一齿轮45啮合连接，链条47的两端分别与射源机构2两端的边沿连接，第一齿轮45带动链条47移动，链条47带动射源机构2在不同工作位之间进行转换。
本申请实施例中，对于链条47的具体形状和类型也不做限定。链条47与射源机构2两端的边沿可以为固定连接，也可以为旋转连接。
图3所示实施例中，射源机构2的工作位切换方式也可以分为以下三种情况：第一种，射源机构2仅能向左侧翻转，以从体部治疗工作位切换为头部治疗工作位；第二种：射源机构2仅能向右侧翻转，以从体部治疗工作位切换为头部治疗工作位；第三种，射源机构2既可以向左侧翻转，又可以向右侧翻转，以从体部治疗工作位切换为头部治疗工作位。
示例的，针对上述第一种情况：射源机构2仅能向左侧翻转，以从体部治疗工作位切换为头部治疗工作位的情况，当射源机构2位于水平位置时，第一齿轮45与链条47啮合于链条47的最左端，在将射源机构2由水平位置向垂直位置翻转的过程中，第一齿轮45沿逆时针方向转动，进而带动链条47向左移动，进而带动射源机构2向左侧翻转，以从体部治疗工作位切换为头部治疗工作位。
针对上述第二种情况：射源机构2仅能向右侧翻转，以从体部治疗工作位切换为头部治疗工作位的情况，当射源机构2位于水平位置时，第一齿 轮45与链条47啮合于链条47的最右端，在将射源机构2由水平位置向垂直位置翻转的过程中，第一齿轮45沿顺时针方向转动，进而带动链条47向右移动，进而带动射源机构2向右侧翻转，以从体部治疗工作位切换为头部治疗工作位。
针对上述第三种情况：射源机构2既可以向左侧翻转，又可以向右侧翻转，以从体部治疗工作位切换为头部治疗工作位的情况，当射源机构2位于水平位置时，第一齿轮45与链条47啮合于链条47的中间位置，此时，若第一齿轮45沿顺时针方向转动，则链条47向右移动，进而带动射源机构2向右侧翻转，以从体部治疗工作位切换为头部治疗工作位；若第一齿轮45沿逆时针方向转动，则链条47向左移动，进而带动射源机构2向左侧翻转，以从体部治疗工作位切换为头部治疗工作位。
在其中一个实施例中，驱动机构3可以包括：电机，电机固定于机架1的横梁上。
本申请实施例中，对于电机的参数，例如：电机的类型、输出扭矩、输出转速等均不做限定，可以根据实际需要来选择。
在另外的实施例中，驱动机构3还可以包括：减速器；减速器的输入轴与电机的输出轴连接，减速器驱动传动机构4，以使传动机构4带动射源机构2在不同工作位之间进行转换。
示例的，电机用于产生驱动转矩，为实现射源机构2的翻转提供动力(驱动转矩)；减速器将电机产生的驱动转矩传递至传动机构4，同时，降低输出至传动机构4的转速。
本申请实施例中，对于减速器的类型不做限定，例如：可以选择使用蜗轮蜗杆减速器，也可以选择使用齿轮减速器等。其中，蜗轮蜗杆减速器的 优点在于：具有反向自锁功能，具有较大的减速比，但也具有如下缺点：体积较大，传动效率不高，精度不高。齿轮减速机器则具有体积小，传递扭矩大、传动效率高，耗能低等优点。因此，可以根据实际需要来选择合适类型的减速器。
另外，本申请实施例中，对于减速器的参数，例如：减速比、传动扭矩等也均不做限定，可以根据实际需要来选择。
在其中一个实施例中，放疗系统还包括位置检测机构；位置检测机构用于检测所述射源机构的位置。
示例的，转换机构带动射源机构2在不同工作位之间转换时，也就是在射源机构2翻转时，位置检测机构实时检测射源机构2的旋转位置。例如，位置检测机构可以是编码器、光栅尺以及检测开关中的一种。示例的，编码器和光栅尺能够实时的检测射源机构2的翻转角度。例如，当射源机构2翻转至20°时，编码器或光栅尺的输出可以为相应的移动距离或翻转角度。示例的，位置检测装置可以是检测开关，检测开关设置在机架1上，射源机构2上设置有开关撞块。当射源机构2翻转至指定位置时，射源机构2上的开关撞块，和机架1上的检测开关触碰，触发检测开关，射源机构2到达指定位置。例如，指定位置是射源机构2在54.5°的位置，此时，机架1上对应射源机构2翻转54.5°的位置设置有检测开关，当射源机构2翻转至54.5°时，射源机构2上的开关撞块触发检测开关，当检测开关被触发之后射源机构2翻转至指定位置。通过设置位置检测机构能够使射源机构2的翻转角度更加的精准。
在其中一个实施例中，放疗系统还包括锁紧机构；位置检测机构检测到射源机构转换到指定位置时，向锁紧机构发送锁紧指令；锁紧机构根据锁 紧指令将射源机构锁紧至指定位置。
示例的，当射源机构2翻转至指定位置之后，通过锁紧装置将射源机构2锁紧至指定位置，以使射源机构2在指定位置工作时更加的稳定。其中，锁紧机构可以是驱动机构中的减速器，锁紧机构也可以是任意能够固定位置的装置。示例的，位置检测机构为编码器或光栅尺，射源机构2在翻转的过程中，编码器或光栅尺实时检测射源机构2的翻转角度，当检测到射源机构2翻转至54.5°时，编码器或光栅尺向减速器发送锁紧指令；或编码器或光栅尺向控制器发送到位指令，控制器在接收到到位指令后，向减速器发送锁紧指令；减速器在接收到锁紧指令之后，将射源机构2锁紧至54.5°位置。示例的，位置检测机构为机架上设置的检测开关以及射源机构2上设置的开关撞块。射源机构2在翻转至54.5°位置时，射源机构2上的开关撞块触发机架1上的检测开关，检测开关被触发之后向减速机发送锁紧指令；或检测开关被触发之后向控制器发送到位指令，控制器在接收到到位指令后，向减速器发送锁紧指令；减速器在接收到锁紧指令之后，将射源机构2锁紧至54.5°位置。
需要说明的是，术语“包括”、“包含”或者其任何其他变体意在涵盖非排他性的包含，从而使得包括一系列要素的过程、方法、商品或者设备不仅包括那些要素，而且还包括没有明确列出的其他要素，或者是还包括为这种过程、方法、商品或者设备所固有的要素。在没有更多限制的情况下，由语句“包括一个……”限定的要素，并不排除在包括所述要素的过程、方法、商品或者设备中还存在另外的相同要素。
本说明书中的各个实施例均采用递进的方式描述，各个实施例之间相同相似的部分互相参见即可，每个实施例重点说明的都是与其他实施例的不 同之处。
以上所述仅为本申请的实施例而已，并不用于限制本申请。对于本领域技术人员来说，本申请可以有各种更改和变化。凡在本申请的精神和原理之内所作的任何修改、等同替换、改进等，均应包含在本申请的权利要求范围之内。
Claims (17)
- 一种放疗系统，其特征在于，所述放疗系统包括：转换机构、机架以及射源机构；所述转换机构设置在所述机架上，所述转换机构包括：驱动机构和传动机构；所述传动机构与所述射源机构连接，以在所述驱动机构的驱动下带动所述射源机构在不同工作位之间进行转换，其中，所述射源机构发出的射束在不同工作位的射束方向不同。
- 根据权利要求1所述的放疗系统，其特征在于，所述传动机构至少包括一级传动组件以及二级传动组件；所述一级传动组件与所述驱动机构连接，所述二级传动组件与所述射源机构连接；所述驱动机构驱动所述一级传动组件，所述一级传动组件带动所述二级传动组件，所述二级传动组件带动所述射源机构在不同工作位之间进行转换。
- 根据权利要求2所述的放疗系统，其特征在于，所述一级传动组件和/或所述二级传动组件为滑动传动机构、连杆传动机构、齿轮传动机构、传动带机构中的一种。
- 根据权利要求2所述的放疗系统，其特征在于，所述一级传动组件包括：滑轨以及滑块；所述滑轨设置于所述机架的横梁，所述滑块设置于所述滑轨上；所述二级传动组件分别与所述滑块以及所述射源机构连接；所述驱动机构驱动所述滑块沿所述滑轨运动，所述滑块带动所述二级传动组件，所述二级传动组件带动所述射源机构在不同工作位之间进行转换。
- 根据权利要求4所述的放疗系统，其特征在于，所述二级传动组件包括连杆；所述连杆的一端与所述滑块转动连接，所述连杆的另一端与所述射源机构的边沿转动连接；所述滑块带动所述连杆，所述连杆带动所述射源机构在不同工作位之间进行转换。
- 根据权利要求5所述的放疗系统，其特征在于，所述机架相对的两根横梁上均设置有所述传动机构。
- 根据权利要求6所述的放疗系统，其特征在于，两个所述传动机构中的任意一个上设置有丝杆，所述丝杆穿过所述滑块设置于所述滑轨上；所述驱动机构驱动所述丝杆，所述丝杆带动所述滑块沿所述滑轨运动。
- 根据权利要求2所述的放疗系统，其特征在于，所述一级传动组件包括第一齿轮；所述第一齿轮与所述驱动机构转动连接，所述第一齿轮与所述二级传动组件啮合连接，所述驱动机构驱动所述第一齿轮旋转，所述第一齿轮带动所述二级传动组件，以使所述二级传动组件带动所述射源机构在不同工作位之间进行转换。
- 根据权利要求8所述的放疗系统，其特征在于，所述二级传动组件包括第二齿轮；所述第二齿轮与所述射源机构的旋转轴固定连接，所述第二齿轮与所述第一齿轮外啮合连接，所述第一齿轮带动所述第二齿轮旋转，所述第二齿轮带动所述射源机构在不同工作位之间进行转换。
- 根据权利要求8所述的放疗系统，其特征在于，所述二级传动组件包括链条；所述链条与所述第一齿轮啮合连接，所述链条的两端分别与所述射源机构两端的边沿连接，所述第一齿轮带动所述链条移动，所述链条带动所述射源机构在不同工作位之间进行转换。
- 根据权利要求1所述的放疗系统，其特征在于，所述驱动机构包括：电机；所述电机固定于所述机架的横梁；所述电机驱动所述传动机构，以使所述传动机构带动所述射源机构在不同工作位之间进行转换。
- 根据权利要求11所述的放疗系统，其特征在于，所述驱动机构还 包括：减速器；所述减速器的输入轴与所述电机的输出轴连接，所述减速器的输出轴与所述传动机构连接，所述减速器驱动所述传动机构，以使所述传动机构带动所述射源机构在不同工作位之间进行转换。
- 根据权利要求1所述的放疗系统，其特征在于，所述射源机构设置于所述机架上，所述驱动机构固定于所述机架，所述传动机构分别与所述驱动机构以及所述射源机构连接。
- 根据权利要求1所述的放疗系统，其特征在于，所述射源机构设置在所述转换机构上。
- 根据权利要求1所述的放疗系统，其特征在于，所述射源机构可在机架上平移和/或升降。
- 根据权利要求1所述的放疗系统，其特征在于，所述放疗系统还包括位置检测机构；所述位置检测机构用于检测所述射源机构的位置。
- 根据权利要求1所述的放疗系统，其特征在于，所述放疗系统还包括锁紧机构；所述位置检测机构检测到所述射源机构转换到指定位置时，向所述锁紧机构发送锁紧指令；所述锁紧机构根据所述锁紧指令将所述射源机构锁紧至所述指定位置。
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| CN103386168A (zh) * | 2013-07-17 | 2013-11-13 | 官爱平 | 一种集成数字成像设备的放疗系统 |
| CN203694432U (zh) * | 2014-02-08 | 2014-07-09 | 郑晓天 | 一种立体定向全身放疗装置 |
| CN108175955A (zh) * | 2018-01-15 | 2018-06-19 | 西安大医数码科技有限公司 | 一种放疗设备 |
| CN108969906A (zh) * | 2018-06-15 | 2018-12-11 | 岑永娟 | 优化igrt图像引导一致性的头部放射治疗设备 |
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