CN117414539A - Multifunctional rack of radiotherapy equipment - Google Patents

Multifunctional rack of radiotherapy equipment Download PDF

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Publication number
CN117414539A
CN117414539A CN202210815374.3A CN202210815374A CN117414539A CN 117414539 A CN117414539 A CN 117414539A CN 202210815374 A CN202210815374 A CN 202210815374A CN 117414539 A CN117414539 A CN 117414539A
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CN
China
Prior art keywords
panel
radiotherapy
frame
mri imaging
imaging host
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202210815374.3A
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Chinese (zh)
Inventor
宋世鹏
张千护
朱小浪
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Shanghai Aikrosi Medical Technology Co ltd
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Hanstai Medical Technology Suzhou Co ltd
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Priority to CN202210815374.3A priority Critical patent/CN117414539A/en
Publication of CN117414539A publication Critical patent/CN117414539A/en
Pending legal-status Critical Current

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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
    • A61N5/00—Radiation therapy
    • A61N5/10—X-ray therapy; Gamma-ray therapy; Particle-irradiation therapy
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
    • A61N5/00—Radiation therapy
    • A61N5/10—X-ray therapy; Gamma-ray therapy; Particle-irradiation therapy
    • A61N5/1048—Monitoring, verifying, controlling systems and methods
    • A61N5/1049—Monitoring, verifying, controlling systems and methods for verifying the position of the patient with respect to the radiation beam
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
    • A61N5/00—Radiation therapy
    • A61N5/10—X-ray therapy; Gamma-ray therapy; Particle-irradiation therapy
    • A61N5/1048—Monitoring, verifying, controlling systems and methods
    • A61N5/1049—Monitoring, verifying, controlling systems and methods for verifying the position of the patient with respect to the radiation beam
    • A61N2005/1055—Monitoring, verifying, controlling systems and methods for verifying the position of the patient with respect to the radiation beam using magnetic resonance imaging [MRI]
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
    • A61N5/00—Radiation therapy
    • A61N5/10—X-ray therapy; Gamma-ray therapy; Particle-irradiation therapy
    • A61N2005/1092—Details
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
    • A61N5/00—Radiation therapy
    • A61N5/10—X-ray therapy; Gamma-ray therapy; Particle-irradiation therapy
    • A61N2005/1092—Details
    • A61N2005/1094—Shielding, protecting against radiation

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  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • 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 invention discloses a multifunctional rack of radiotherapy equipment, which comprises: the frame body forms an accommodating space of the radiotherapy system and the MRI imaging host; the frame panel is at least partially arranged on the side surface of the frame body to form double shielding for rays and electromagnetic fields; the movable door is arranged on one side of the stand body close to the MRI imaging host, can be opened or closed when the MRI imaging host enters or exits from the accommodating space, isolates the radiotherapy system from the MRI imaging host, and provides the radiation shielding and external magnetic field shielding effects for the radiotherapy system. The multifunctional stand can play a role in supporting and fixing the existing stand, has double shielding effects, can shield rays of a radiotherapy system, avoid the leakage of the rays, isolate external electromagnetic wave interference, ensure the stable work of an MRI imaging host, and is also used for isolating the radiotherapy system from the MRI imaging host and avoiding interference of the MRI imaging host to the radiotherapy system.

Description

Multifunctional rack of radiotherapy equipment
Technical Field
The invention relates to the field of radiotherapy, in particular to a multifunctional rack of radiotherapy equipment.
Background
The radiotherapy equipment is medical equipment for tumor treatment, and the principle is that a radiotherapy system irradiates therapeutic rays into a focus of a patient, and kills tumor cells by using the rays; in the existing radiotherapy equipment, in order to improve the treatment effect and ensure the ray positioning accuracy, part of radiotherapy equipment selects to carry an MRI imaging host machine so as to perform imaging positioning on a focus of a patient.
In clinical use, because radiation therapy system itself can produce the ray, and MRI imaging host computer also need be in the operation of no interference environment, current radiotherapy equipment who carries on MRI imaging host computer needs to build dedicated shielding computer lab, and the inside multiunit of shielding layer that does not contact with the wall that not only needs to set up of shielding computer lab, and lets in the inside wire rod of magnetic resonance room all need install the wave filter additional, this just makes the holistic use cost in radiotherapy equipment and place higher, also needs to keep throwing in the later maintenance simultaneously.
The rack of the existing radiotherapy equipment is generally provided with a fixed radiotherapy system and an imaging host, and only plays a simple fixed supporting role in the radiotherapy equipment, and as the radiotherapy system and the MRI imaging host have specific requirements on working environments, the radiotherapy system and the MRI imaging host can also have working interference (the strong magnetism of the MRI imaging host can influence the working of the radiotherapy system), so that the functions of the existing rack can not meet the component requirements of the radiotherapy equipment. In addition, the existing radiotherapy equipment needs to be built with a specific shielding machine room, and on one hand, the occupied space and the use cost of the radiotherapy equipment are increased due to the construction of the machine room, and on the other hand, the convenience of the radiotherapy equipment is also affected.
Disclosure of Invention
The invention aims to solve the defects in the prior art and provides a multifunctional rack of radiotherapy equipment.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
a multi-functional gantry for a radiotherapy apparatus, the radiotherapy apparatus carrying a radiotherapy system and an MRI imaging host, wherein the gantry comprises:
a gantry body forming an accommodation space for the radiation therapy system and the MRI imaging host;
the rack panel is at least partially arranged on the side surface of the rack body, so as to form double shielding for rays and electromagnetic fields;
the movable door is arranged on one side of the stand body close to the MRI imaging host, and can be opened or closed when the MRI imaging host enters or exits the accommodating space;
when the radiotherapy equipment enters an imaging state, the MRI imaging host enters the accommodating space, and the multifunctional rack is used as an anti-interference shielding body of the MRI imaging host;
when the radiotherapy equipment enters a radiotherapy state, the MRI imaging host computer exits from the accommodating space, and the multifunctional stand isolates the radiotherapy system and the MRI imaging host computer from each other and provides the radiation shielding and external magnetic field shielding effects for the radiotherapy system.
In some embodiments: the frame body is a frame body, the frame body comprises a first side face and a second side face opposite to the first side face, the second side face is provided with a movable door, the movable door is a normally closed door, when the MRI imaging host is ready to enter the accommodating space, the movable door is instantaneously opened, and when the MRI imaging host is ready to exit the accommodating space, the movable door is instantaneously closed.
In some embodiments, the frame further includes a third side and a fourth side opposite to the third side, the rack panel includes a first panel, a second panel, and a third panel, the first panel is fixedly disposed on the first side or integrally formed with the frame, and the second panel and the third panel are respectively disposed on the third side and the fourth side.
In some embodiments: the second panel and/or the third panel has a convex structure, preferably, at least one of the second panel or the third panel is provided with a transparent window or an access opening.
In some embodiments: the frame panel and the movable door are both made of multi-layer composite structure plates, and the middle layer of the multi-layer composite structure plates is a ray shielding layer; preferably, the multi-layer composite structural plate comprises a stainless steel plate, a lead plate sandwich layer and a carbon steel plate, wherein the stainless steel plate is positioned at the outermost side.
In some embodiments: the second side of the frame body frame is provided with a guide rail frame of the movable door, the guide rail frame comprises a first guide rail frame and a second guide rail frame, and the second guide rail frame is an extension frame of the first guide rail frame.
In some embodiments: the second guide rail frame is integrally formed or connected with the first guide rail frame in a split mode, and extends to the left side, the right side or the upper side of the first guide rail frame so that the movable door can be completely opened; preferably, the second rail frame extends in a lateral direction, and the second rail frame is fixed to the second panel or the third panel by a support frame.
In some embodiments: the first and second guide frames are provided with a plurality of pulley rolling bodies on both sides of the moving direction of the moving door.
In some embodiments: the frame panel of the first side face is provided with a central hole, a bearing is arranged in the central hole, the radiotherapy equipment comprises a turntable, the outer ring of the bearing is fixedly arranged in the central hole, and the inner ring of the bearing is fixedly connected with the turntable; preferably, the center of the turntable is provided with an annular shaft which is integrally formed or fixed with the turntable and penetrates through the turntable, and the inner ring of the bearing is fixed on the annular shaft of the turntable.
In some embodiments: the shielding door is installed on the outer side of the frame panel of the first side, and preferably, the shielding door is two doors which can be sealed after being closed.
The invention has the following beneficial effects:
the multifunctional rack comprises a rack body, wherein the rack body forms an accommodating space of the radiotherapy system and the MRI imaging host, the accommodating space is used as a treatment space for radiotherapy on one hand, and on the other hand, the MRI imaging host can enter the space where the radiotherapy system is located for imaging and positioning, so that conditions are provided for superposition of a treatment isocenter during radiotherapy and an influence center during imaging of the MRI imaging host.
The multifunctional rack of the application further comprises a rack panel and a movable door, the multifunctional rack forms a double shielding effect on rays and electromagnetic fields, and can effectively avoid ray leakage of a radiation treatment system in a radiation treatment state and electromagnetic influence of the magnetic field of an external MRI imaging host on a linear electron accelerator of the treatment system.
The flexible switching between the imaging state and the radiotherapy state of the radiotherapy equipment in the same space is creatively realized through the multifunctional stand, namely, when the radiotherapy equipment enters the imaging state, the MRI imaging host enters the accommodating space of the stand for imaging and positioning, and the multifunctional stand is used as an anti-interference shielding body of the MRI imaging host; when the radiotherapy equipment enters a radiotherapy state, the MRI imaging host exits the accommodating space, the multifunctional stand isolates the radiotherapy system and the MRI imaging host from each other, and meanwhile, radiation shielding is provided for the radiotherapy system and the influence of an external magnetic field on the radiation source is shielded.
The design of this multi-functional frame for radiotherapy equipment need not to additionally build dedicated shielding room just can normal use, has better economic benefits and use convenience in use cost and later maintenance.
Drawings
FIG. 1 is a schematic structural view of a frame body of a multifunctional rack of a radiotherapy apparatus according to an embodiment of the present invention;
FIG. 2 is a schematic structural view of a multifunctional gantry of a radiotherapy apparatus according to an embodiment of the present invention, in which a front shielding door and a treatment couch of the radiotherapy apparatus are hidden, and an MRI imaging host is in an imaging state (located inside the gantry);
FIG. 3 is a schematic view showing a frame with a panel of a radiotherapy apparatus according to an embodiment of the present invention in another direction;
FIG. 4 is a schematic view of the frame panel (second panel and third panel) shown in FIG. 2 or FIG. 3 with a convex structure;
fig. 5 is a schematic diagram of the overall structure of the radiotherapy apparatus according to the present invention;
FIG. 6 is a schematic view of a hidden part of a frame structure of a radiotherapy apparatus according to the present invention;
fig. 7 is a schematic structural view of a hidden part of a rack structure of the radiotherapy apparatus in another direction;
FIG. 8 is a longitudinal cross-sectional view of the treatment apparatus of the present invention;
fig. 9 is a schematic diagram of the forward structure of the radiotherapy apparatus of the present invention.
Detailed Description
The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are only some of the preferred embodiments of the present invention, but not all of the preferred embodiments do not limit the scope of the present invention, and based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making any inventive effort are within the scope of the present invention.
In the description of the present invention, it should be noted that, directions or positional relationships indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., are based on directions or positional relationships shown in the drawings, are merely for convenience of description and simplification of description, and do not indicate or imply that the apparatus or element to be referred to must have a specific direction, be constructed and operated in the specific direction, and thus should not be construed as limiting the present invention; the terms "first," "second," "third," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, and furthermore, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "coupled," and the like are to be construed broadly, and may be fixedly coupled, detachably coupled, or integrally coupled, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
As shown in fig. 1 to 3 and 6, the present invention provides a multifunctional gantry of a radiotherapy apparatus, on which a radiotherapy system 2 and an MRI imaging host 3 are mounted, the multifunctional gantry comprising: a gantry body 1, the gantry body 1 forming an accommodation space for the radiation therapy system 2 and the MRI imaging main unit 3; the rack panel is at least partially arranged on the side surface of the rack body 1 to form double shielding for rays and electromagnetic fields; the movable door 103 is arranged on one side surface of the stand body 1, which is close to the MRI imaging host 3, and can be opened or closed when the MRI imaging host 3 enters or exits from the accommodating space, and when the radiotherapy equipment enters an imaging state, the MRI imaging host 3 enters into the accommodating space, and the multifunctional stand is used as an anti-interference shielding body of the MRI imaging host 3, so that the influence of the external environment on the interference of an MRI magnetic field on the imaging positioning effect can be avoided; when the radiotherapy equipment enters a radiotherapy state, the MRI imaging host 3 exits from the accommodating space, and the multifunctional stand isolates the radiotherapy system 2 and the MRI imaging host 3 from each other, so that on one hand, people or objects in the surrounding environment are prevented from being radiated by radioactive rays, and on the other hand, the influence of the MRI imaging host 3 with a strong magnetic field, which is positioned outside the stand, on the radiation source of the radiotherapy system is avoided.
The accommodating space in the multifunctional rack can selectively enable the MRI imaging host 3 to enter the accommodating space for imaging and positioning besides accommodating the whole radiotherapy system, and is also used for placing a treatment bed in the radiotherapy process; the gantry body 1 is provided with a moving door 103, and by controlling the automatic closing of the moving door 103, the MRI imaging host 3 can be made to enter the accommodating space or exit the accommodating space, whether the MRI imaging host 3 enters the accommodating space depends on the working state of the radiotherapy equipment, when the radiotherapy equipment enters the imaging state, the MRI imaging host enters the accommodating space, when the radiotherapy equipment enters the radiotherapy state, the MRI imaging host exits the accommodating space, and it should be understood that the imaging state entering in the invention includes a preparation state, namely, a preparation time stage before entering, and the radiotherapy state is also entered, namely, a preparation time stage before entering the radiotherapy equipment.
As shown in fig. 1, in this embodiment, the gantry body 1 preferably adopts a frame, and the frame includes a first side 101 and a second side 102 opposite to the first side 101, where the second side 102 is provided with a moving door 103, and the moving door 103 is a normally closed door, when the radiotherapy apparatus is ready to enter the imaging position, the MRI imaging host 3 starts to move into the imaging position, and when the radiotherapy apparatus completely enters the accommodating space, the moving door 103 is instantaneously and automatically closed; when the imaging positioning is finished, the radiotherapy equipment is ready to enter a treatment state, the MRI imaging host 3 starts to exit, and when the MRI imaging host completely exits the accommodating space, the movable door 103 is automatically closed again; in addition, the multifunctional rack is not limited to a square frame, and in other feasible embodiments, the multifunctional rack can also adopt a cylindrical or other polyhedral structure as long as the overall appearance requirements of space and radiotherapy equipment are met.
As shown in fig. 2-3, the frame further includes a third side 104 and a fourth side 105 opposite to the third side 104, the rack panel includes a first panel 106, a second panel 107, and a third panel 108, the first panel 106 is fixedly disposed on the first side 101 or integrally formed with the frame, and the second panel 107 and the third panel 108 are disposed on the third side 104 and the fourth side 105, respectively.
As shown in fig. 4, the second panel 107 and/or the third panel 108 has a protruding structure 109, in this embodiment, the second panel 107 and the third panel 108 are provided with protruding structures 109, and of course, in other embodiments, a protruding structure 109 may be provided on a side of the frame panel, such as the two panels 107 or the third panel 108, where the protruding structure 109 is provided to cooperate with a radiation therapy mechanism 201 of a radiotherapy apparatus to move more outwards when moving to a position for an MRI imaging host, so that the overall volume of the frame body 1 does not need to be enlarged, so that the design volume of the frame body 1 is smaller and the cost is lower. In other embodiments of the present invention, a radiotherapy apparatus access port may be provided in the second panel 107 or the third panel 108 of the gantry body 1, for example, the second panel 107 or the third panel 108 may be provided as a movable structure or a movable access port may be provided thereon, so as to facilitate daily maintenance and repair of the apparatus. Further, with respect to the rack panel, it should be understood that the rack panel includes panels of sides other than the moving door 103 to which the second side 102 of the frame of the rack body 1 is mounted, such as a first panel 106, a second panel 107, a third panel 108, and top and bottom panels.
In this embodiment, the frame panel and the sliding door 103 each use a multi-layer composite structural plate, in which the middle layer is a radiation shielding layer, that is, the middle layer may use a high density radiation shielding material such as a lead plate or a tungsten plate, and of course, in view of cost, the embodiment preferably uses a lead plate, and the multi-layer composite structural plate includes a stainless steel plate, a lead plate sandwich layer, and a carbon steel plate, in which the stainless steel plate and the carbon steel plate may be located on the inner side or the outer side of the multi-layer composite structural plate, but in view of the appearance of the frame, it is preferable to use a stainless steel plate as the outer side plate of the composite structural plate, even if the stainless steel plate is located on the outermost side of the frame panel and the sliding door. The adoption of the multi-layer composite structural plate not only ensures the strength of the frame panel and the movable door, but also can shield the influence of the strong magnetic field on the radiation source of the radiation therapy system 2 when the radiation leakage in the radiation therapy process and the MRI imaging host 3 in the radiation therapy process are positioned outside. Of course, in other possible embodiments, the multi-layer composite structural plate may be carbon steel plates on both the inner and outer sides. In addition, in other embodiments, the sliding door 103 may be a tungsten plate with high cost or a relatively inexpensive reinforced cement door with a certain thickness and density capable of playing a shielding role.
In the following, the mounting situation of the sliding door 103 according to the present invention will be described, and as shown in fig. 2, the second side 102 of the frame of the gantry body 1 is provided with a guide rail frame of the sliding door 103, where the guide rail frame includes a first guide rail frame 110 and a second guide rail frame 111, where the second guide rail frame 111 is an extension frame of the first guide rail frame 110, for enabling the sliding door to have a moving space with an equal width, so as to be fully opened to enable the MRI imaging host 3 to enter the frame for imaging positioning or exit the frame, where the second guide rail frame 111 may be integrally formed with the first guide rail frame 110, or may be separately connected with the first guide rail frame 110, and where the second guide rail frame 111 may extend to the left side or the right side of the first guide rail frame 110, i.e., where the second guide rail frame 111 extends along a lateral direction so that the sliding door 103 can be moved left and right to be fully opened, and as shown in fig. 2, for example, where the second guide rail frame 111 extends laterally along the first guide rail frame 110 toward one side of the second panel 107, and the second guide rail frame 111 may be fixed to the other side of the third guide rail frame 108 by a support member 113 that is parallel to the upper and lower side of the third guide rail frame 108, and may extend along the lateral side of the same. However, in addition to this, in other possible embodiments, the second rail frame 111 may also extend upward, i.e., vertically, of the first rail frame 110, so that the moving door 103 moves up and down to be fully opened.
Further, since the moving door 103 generally has a certain weight, the first and second rail frames 110 and 111 are provided with a plurality of pulley rolling bodies 112 on both sides in the moving direction of the moving door 103 in order to facilitate smooth opening and closing of the moving door 103.
The multifunctional rack of the invention is used as a carrier of radiotherapy equipment, and the radiotherapy equipment using the multifunctional rack of the invention and the cooperation of the multifunctional rack and the radiotherapy equipment will be described below.
Referring to fig. 5-8, besides the multifunctional gantry, the radiotherapy device mainly includes a radiotherapy system 2 and an MRI imaging host 3, where the radiotherapy system 2 includes a radiotherapy mechanism 201 and a turntable 202, the turntable 202 is connected with the first side 101 of the gantry body 1 through a bearing 207, a first driving motor is disposed on the turntable 202, and an output shaft of the first driving motor can drive a sprocket 208 to rotate through a chain, so as to drive the turntable 202 to rotate. Specifically, as shown in fig. 1 and 8, a central hole 114 is formed in a frame panel of the first side 101 of the frame body 1, a bearing 207 is installed in the central hole 114, the radiotherapy device comprises a turntable 202, an outer ring of the bearing 207 is fixedly installed in the central hole 114, an inner ring of the bearing 207 is matched with an annular bearing in the central hole 114 of the turntable 202, a sprocket 208 is fixed on an annular shaft 206 of the turntable 202, and when a chain drives the sprocket 208 to rotate, the turntable 202 is driven to rotate. The annular bearing at the center of the turntable 202 may be fixedly penetrating the turntable 202 or integrally formed with the turntable 202, and regarding the rotation driving mode of the turntable 202, in other specific possible embodiments, a transmission mode such as a gear, a belt, etc. may also be used.
In addition to the rotation of the radiation treatment mechanism 201 along with the rotation of the rotation disc 202, in order to improve the efficient irradiation of the focus point of the patient and reduce the damage to normal tissues and cells of the human body, and improve the coke-skin ratio, the treatment head of the treatment mechanism 201 also swings in an arc shape except the rotation of the treatment mechanism 201 along with the rotation disc 202, and the specific structure and swing of the treatment mechanism 201 can be implemented with reference to the prior art, which is not the focus of the present invention, and is not repeated here.
In addition, in the radiotherapy apparatus according to the present invention, in order to reduce the volume of the radiotherapy apparatus, the radiotherapy mechanism 201 is slidably disposed on the turntable 202, and the radiotherapy mechanism 201 has at least a avoidance space and a working position, that is, a avoidance space for the MRI imaging host machine 3, and a radiotherapy working position for radiotherapy, specifically, a guide rail 203 and a slide carriage 204 are further disposed between the radiotherapy mechanism 201 and the turntable 202, the guide rail 203 is formed on the turntable, the slide carriage 204 is slidably engaged with the guide rail, and is fixedly connected with the radiotherapy mechanism 201, so that the radiotherapy mechanism 201 can move on the guide rail 203 through the slide carriage 204, so that when the MRI imaging host machine 3 enters the internal space of the gantry body 1, the radiotherapy mechanism 201 moves radially in an opposite direction to the center of the turntable, so as to avoid the space for the MRI imaging host machine 3, and a second driving motor is further disposed between the radiotherapy mechanism 201 and the turntable 202, and in order to increase the avoidance space of the radiotherapy mechanism, and in order to increase the second panel 107 or the third panel 108, the radiotherapy mechanism 109 is disposed on the side of the slide carriage 204, and when the MRI imaging host machine 3 enters the internal space of the MRI imaging host machine 1, the MRI imaging host machine 3, the radiotherapy mechanism 201 moves in a direction opposite direction to the opposite direction of the center of the turntable 1, and then the radiotherapy mechanism 201 moves to the position of the MRI host machine when the MRI host machine 3, and the radiotherapy mechanism 201 moves in the opposite direction. It can be seen that the protruding structure of the side cover 306 protruding outwards can enable the radiotherapy mechanism 201 to provide more avoidance space for the MRI imaging host 3, so that the volume of the gantry 2 does not need to be enlarged, and the design volume of the gantry 2 can be relatively reduced.
The outside of carousel 202 of radiation therapy system 2 still is provided with sliding ring 209 and power supply system, and the sliding ring can follow carousel 202 and rotate together, has the multiturn annular conductor on the sliding ring, contacts through the annular conductor and the carbon brush of sliding ring in the rotation in-process to provide electric energy and transmission signal for therapy system all the time.
In this embodiment, the gantry body 1 further includes a base 4, where the base 4 includes two parts, one part is located in the gantry body 1 and the other part is located outside the gantry body 1, a guide rail for moving the MRI imaging host 3 is disposed on the base 4, and the MRI imaging host 3 can move along the guide rail through a driving assembly, and enter or exit the accommodating space of the gantry body 1. The third motor and the ball screw can be adopted for the driving assembly, or other existing driving transmission modes such as motor and gear rack can be adopted.
Finally, referring to fig. 9, in the present embodiment, a shielding door 5 is mounted on a frame panel of the first side 101 of the frame body 1, the shielding door 5 is preferably two shielding doors capable of being sealed after being closed, the shielding door 5 mainly has the effect of avoiding the influence of the external environment on the magnetic field of the MRI imaging host 3 when the MRI imaging host 3 is positioned in an imaging manner, and the radiation overflows from the front of the radiotherapy device in the radiotherapy process, the shielding door and a frame of the frame body are preferably made of stainless steel, in addition, in order to facilitate the automatic opening and closing of the shielding door 5, an electric cylinder 501 is arranged between the inner sides of the two shielding doors 5 and the frame panel of the first side 101 of the frame body, and the automatic opening and closing of the shielding door 5 are realized through the driving control of the electric cylinder 501. When the radiotherapy equipment is used, after the two shielding doors 5 are opened, a patient receiving radiotherapy enters the radiotherapy equipment from the two shielding doors, and lies on a treatment bed of the radiotherapy equipment, and the treatment bed enters the cavity space through the driving device to perform imaging positioning and radiotherapy. The multifunctional rack can ensure that the radiotherapy equipment does not need to be additionally arranged in the shielding machine room for use, does not need to provide a separate shielding machine room for a treatment system and MRI (magnetic resonance imaging) image equipment, reduces the use cost of the equipment, reduces the volume of the radiotherapy equipment, and has smaller occupied space and more convenient use.
Finally, it should be noted that: the foregoing description is only illustrative of the preferred embodiments of the present invention, and although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements or changes may be made without departing from the spirit and principles of the present invention.

Claims (10)

1. A multifunctional gantry for a radiotherapy apparatus, the radiotherapy apparatus carrying a radiotherapy system and an MRI imaging host, comprising:
a gantry body forming an accommodation space for the radiation therapy system and the MRI imaging host;
the rack panel is at least partially arranged on the side surface of the rack body, so as to form double shielding for rays and electromagnetic fields;
the movable door is arranged on one side of the stand body close to the MRI imaging host, and can be opened or closed when the MRI imaging host enters or exits the accommodating space;
when the radiotherapy equipment enters an imaging state, the MRI imaging host enters the accommodating space, and the multifunctional rack is used as an anti-interference shielding body of the MRI imaging host;
when the radiotherapy equipment enters a radiotherapy state, the MRI imaging host computer exits from the accommodating space, and the multifunctional stand isolates the radiotherapy system and the MRI imaging host computer from each other and provides the radiation shielding and external magnetic field shielding effects for the radiotherapy system.
2. The multi-purpose rack for a radiotherapy apparatus of claim 1, wherein: the frame body is a frame body, the frame body comprises a first side face and a second side face opposite to the first side face, the second side face is provided with a movable door, the movable door is a normally closed door, when the MRI imaging host is ready to enter the accommodating space, the movable door is instantaneously opened, and when the MRI imaging host is ready to exit the accommodating space, the movable door is instantaneously closed.
3. The multi-functional rack of a radiotherapy apparatus of claim 2, wherein the frame further comprises a third side and a fourth side opposite to the third side, the rack panel comprises a first panel, a second panel and a third panel, the first panel is fixedly arranged on the first side or integrally formed with the frame, and the second panel and the third panel are respectively arranged on the third side and the fourth side.
4. A multi-purpose housing for a radiotherapy apparatus according to claim 3, wherein: the second panel and/or the third panel has a convex structure, preferably, at least one of the second panel or the third panel is provided with a transparent window or an access opening.
5. The multi-purpose rack for a radiotherapy apparatus of claim 2, wherein: the frame panel and the movable door are both made of multi-layer composite structure plates, and the middle layer of the multi-layer composite structure plates is a ray shielding layer; preferably, the multi-layer composite structural plate comprises a stainless steel plate, a lead plate sandwich layer and a carbon steel plate, wherein the stainless steel plate is positioned at the outermost side.
6. The multi-purpose rack for a radiotherapy apparatus of claim 2, wherein: the second side of the frame body frame is provided with a guide rail frame of the movable door, the guide rail frame comprises a first guide rail frame and a second guide rail frame, and the second guide rail frame is an extension frame of the first guide rail frame.
7. The multi-purpose rack for a radiotherapy apparatus of claim 6, wherein: the second guide rail frame is integrally formed or connected with the first guide rail frame in a split mode, and extends to the left side, the right side or the upper side of the first guide rail frame so that the movable door can be completely opened; preferably, the second rail frame extends in a lateral direction, and the second rail frame is fixed to the second panel or the third panel by a support frame.
8. The multi-purpose rack for a radiotherapy apparatus of claim 6, wherein: the first and second guide frames are provided with a plurality of pulley rolling bodies on both sides of the moving direction of the moving door.
9. The multi-purpose rack for a radiotherapy apparatus of claim 2, wherein: the frame panel of the first side face is provided with a central hole, a bearing is arranged in the central hole, the radiotherapy equipment comprises a turntable, the outer ring of the bearing is fixedly arranged in the central hole, and the inner ring of the bearing is fixedly connected with the turntable; preferably, the center of the turntable is provided with an annular shaft which is integrally formed or fixed with the turntable and penetrates through the turntable, and the inner ring of the bearing is fixed on the annular shaft of the turntable.
10. The multi-purpose rack for a radiotherapy apparatus of claim 2, wherein: the shielding door is installed on the outer side of the frame panel of the first side, and preferably, the shielding door is two doors which can be sealed after being closed.
CN202210815374.3A 2022-07-11 2022-07-11 Multifunctional rack of radiotherapy equipment Pending CN117414539A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202210815374.3A CN117414539A (en) 2022-07-11 2022-07-11 Multifunctional rack of radiotherapy equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202210815374.3A CN117414539A (en) 2022-07-11 2022-07-11 Multifunctional rack of radiotherapy equipment

Publications (1)

Publication Number Publication Date
CN117414539A true CN117414539A (en) 2024-01-19

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN202210815374.3A Pending CN117414539A (en) 2022-07-11 2022-07-11 Multifunctional rack of radiotherapy equipment

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Country Link
CN (1) CN117414539A (en)

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