CN102688558B - Radiation therapy equipment - Google Patents
Radiation therapy equipment Download PDFInfo
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- CN102688558B CN102688558B CN201210171632.5A CN201210171632A CN102688558B CN 102688558 B CN102688558 B CN 102688558B CN 201210171632 A CN201210171632 A CN 201210171632A CN 102688558 B CN102688558 B CN 102688558B
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Abstract
The invention provide radiation therapy equipment, which comprises a mount base, a therapy bed and a therapy equipment body, wherein the therapy bed and the therapy equipment body are fixedly mounted on the mount base. The therapy equipment body comprises a shield drum, a source drum and a collimator drum component which are sleeved coaxially and capable of rotating relative to each other, wherein the source drum is provided with a detachable radioactive source component, and the collimator drum component is provided with a collimator. Further, radials emitted from the radioactive source component irradiates into the therapy equipment body after being limited by the collimator, and the therapy equipment body surrounds the therapy bed by 360 degrees circumferentially. Rotation and revolution of radials are combined by controlling different matching actions of the radioactive source component with an annular tooth of the radioactive source, so that fixed-point rotary irradiation in any angles and optional rotary arc-discharge irradiation within the range of 360 degrees are realized, focus-skin ratio is increased to the utmost extent, and quality of the focus point is improved.
Description
Technical field
The present invention relates to the radiotherapy equipment in a kind of medical apparatus and instruments, particularly relate to a kind of radiotherapy equipment of gamma ray.
Background technology
Be at present the therapeutic equipment of radioactive source with gamma ray be all generally utilize gamma ray to carry out focusing illumination to reach protection normal structure at patient's target spot place, kill the object of focus.Along with the continuous progress of radiotherapy technology, the mode of ray focusing has developed into rotating focus technology from the mode of static focus.Rotating focus technology is exactly allow gamma ray constantly be rotated around the target spot of patient, improves burnt skin ratio with this, reduces the average shot dosage suffered by normal structure.The mode of rotating focus generally has two kinds: a kind of is that rotation is carried out by a certain axis of patient's target spot in ray edge, and another kind is exactly that ray is along being revolved round the sun by a certain axis of patient's target spot.
Existing radiotherapy equipment, shown in Figure 1, multiple radiation unit is adopted to be distributed on same hemisphere or ball-crown body according to different longitudes and latitudes, shown in Figure 2, its hemisphere or ball-crown body are rotated around the axis a of himself, because the central shaft of now each radiation unit self can cross to a bit at centre of sphere place, because which form bullet beam, joint is exactly rotating focus point, the set-point of focus when namely treating.This type of radiotherapy equipment is owing to only adopting the mode around its central axis rotation, ray is made to lack motility for the avoidance of sensitive organization, burnt skin is than fully not bringing up to optimum state, the dosage field anastomose property irradiated for irregular open country, special open country is inadequate, the dosage field of focal spot is spherical or water-drop-shaped, the mode filled or extend out can only be adopted clinically to adapt to radiate wild irradiation, and the clinical demand of revolving fixed point or arcing irradiation can not be realized, be also difficult to carry out tune strength reason and Inverse Planning simultaneously.In other existing radiotherapy equipments, the mode adopting beam to carry out revolving round the sun around target spot is treated, but because beam can not rotation, be forced to adopt single source to cause focus close rate not reach clinical requirement, multi-source is adopted to cause the dose response function in its target area even not, and in practice due to the restriction of frame for movement and the protection requirement of sensitive organization, its revolution angle does not often reach the whole circle rotation of 360 degree, and can only be the focusing illumination of arc among a small circle under employing certain angle, so just greatly reduce the advantage of revolution, simultaneously owing to there is the unsymmetry that arc irradiates, the quality of design at focus place can be reduced on the contrary.
Summary of the invention
The object of the present invention is to provide a kind of radiotherapy equipment, by arranging being coaxially set-located and revolvable shield cylinder each other in described therapeutic equipment main body, with the source body cylinder of radiation source assemblies, collimation body drum assembly, therapeutic bed 360 degree of complete cycles are surrounded, solving ray can not degree whole circle irradiates around 360 of target spot problem, and by controlling radiation source assemblies with the different actions coordinated between radioactive source ring tooth, the rotation of ray and revolution are combined together, any rotation arcing achieved within the scope of fixed point rotary irradiation at any angle and 360 degree is irradiated, farthest improve burnt skin ratio, improve focus place quality.
The present invention is achieved in that a kind of radiotherapy equipment, comprises a mounting seat, and the therapeutic bed be fixedly installed in described mounting seat and therapeutic equipment main body; Described therapeutic equipment main body comprises a shield cylinder, also comprise the source body cylinder be sheathed in described shield cylinder, and the drum assembly of stretched be surely sheathed in the body cylinder of described source, described source body cylinder and described collimation body drum assembly all coaxial with described shield cylinder, described shield cylinder is fixedly installed in described mounting seat, described source body cylinder is driven by source body Rolling motor can around the 360 degree of rotations of its central shaft, and described collimation body drum assembly can around the 360 degree of rotations of its central shaft by collimating the driving of body Rolling motor; Described therapeutic equipment main body also comprises the radiation source assemblies that can provide ray, described radiation source assemblies is removably installed on the body cylinder of described source, can rotate with source body drum rotating, described collimation body drum assembly comprises collimator, and the ray that described radiation source assemblies radiates is after the limit bundle of described collimator in therapeutic equipment main body described in directive; Described therapeutic bed passes in described therapeutic equipment main body along the central axis direction of described shield cylinder, and is surrounded by described therapeutic equipment main body 360 degree of complete cycles.
Further, described radiation source assemblies comprises penetrates source body, described source body of penetrating has central shaft, also comprise one end and described source of the penetrating body axle penetrated source body and be fixedly connected with, described source body axle of penetrating is positioned at on the described rotary middle spindle penetrating source body, described in penetrate source body axle the other end be fixedly connected with a radioactive source gear; Described therapeutic equipment main body also comprises a radioactive source driving device, described radioactive source driving device comprises one and is installed on radioactive source ring gear in described shield cylinder and coaxial with described shield cylinder, and the radioactive source drive motors that has an output gear, described radioactive source ring gear simultaneously with output gear and the radioactive source gears meshing of radioactive source drive motors.
Further, described source body of penetrating is cone, the wall body of described source body cylinder offers pyramid type through hole, vertical with the rotary middle spindle of described source body cylinder in the radial direction that the central shaft of described pyramid type through hole is positioned at described source body cylinder, the diameter of described pyramid type through hole is reduced gradually by the inside side of lateral surface of described source body cylinder, described in penetrate in the suitable pyramid type through hole being installed on the body cylinder of described source of source body.
Further, the both ends of the surface of described radioactive source ring gear are equipped with latch, the latch of an end face and described radioactive source gears meshing, and the latch of other end engages with the output gear of described radioactive source drive motors.
Further, described therapeutic equipment main body also comprises a dummy source assembly, described dummy source assembly has the structure identical with radiation source assemblies, and and in 180 degree of symmetrical being in opposite directions installed on the body cylinder of described source between radiation source assemblies, in described dummy source assembly, light source is installed.
Further, described collimator is arc multi-vane grating or circular view aligner.
Further, described shield cylinder offers loading of source hole in radial directions, described loading of source hole is symmetrically arranged in opposite directions two through holes, lay respectively at the horizontal two ends of described shield cylinder, described therapeutic equipment main body also comprises two loading of source hole sprues, coordinates respectively install with the loading of source hole on described shield cylinder.
Further, described source body cylinder and collimation body cylinder are respectively equipped with coaxial gear in the both ends of the surface of axis, and described gear is respectively with source body Rolling motor and collimate body Rolling motor and coordinate.
Further, described mounting seat is fixedly arranged on below ground, and described shield drum segment is located at below ground.
Further, the ray that described radiation source assemblies provides is gamma ray.
The beneficial effect of radiotherapy equipment adopting the embodiment of the present invention to provide is: revolved round the sun around the rotary middle spindle of therapeutic equipment main body by the radiation source assemblies that rotarily drives controlling source body cylinder, further drive radiation source assemblies produces rotation, or source body cylinder is static at a certain fixed angle, rotate by controlling radioactive source driven by motor radioactive source ring gear, further drive radiation source assemblies carries out rotation in this fixing angle, thus the rotation arcing achieved in fixed point irradiation at any angle and any range is irradiated, 360 degree of whole circles irradiate, farthest improve burnt skin ratio, improve focus place quality, by adopting the dismountable radiation source assemblies be installed on the body cylinder of described source, achieving the integral replacing of radiation source assemblies, simplifying radioactive source and changing program, decreasing unit one by one simultaneously and change the risk in source, by the setting of dummy source, achieve the visual simulation of visual, the therapeutic process of ray path and focus, by adopting arc multi-vane grating to coordinate with radiation source assemblies, achieve conformal therapy, by arranging the semi-underground installation of shield cylinder, achieving the multiple shield of radioactive source, reducing the risk that radioactive source pollutes, by therapeutic bed and therapeutic equipment main body are installed in mounting seat, achieve realize complete machine factory debugging after on-the-spot integral hoisting, save the installation and debugging time.
Accompanying drawing explanation
Fig. 1 is radiotherapy unit schematic diagram in prior art of the present invention;
Fig. 2 is the ray schematic diagram of prior art radiotherapy unit of the present invention;
Fig. 3 is radiotherapy equipment structural representation of the present invention;
Fig. 4 is radiotherapy equipment structure front section view of the present invention;
Fig. 5 is radiotherapy equipment texture edge sectional view of the present invention;
Fig. 6 is dummy source assembly of the present invention, radiation source assemblies and driving device structure schematic diagram thereof;
Fig. 7 is that the present invention collimates body drum assembly structural representation;
Fig. 8 is shield roller frame schematic diagram of the present invention;
Fig. 9 is source of the present invention body cylinder and collimation body drum assembly structural representation;
Detailed description of the invention
In order to make object of the present invention, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
Fig. 3 is radiotherapy equipment structural representation of the present invention, comprises a mounting seat 3, and the therapeutic bed 2 be fixedly installed in mounting seat 3 and therapeutic equipment main body 1.
Shown in Fig. 4 and Fig. 5, therapeutic equipment main body 1 comprises the shield cylinder 11 being cylindrical barrel shape, source body cylinder 12 and collimation body drum assembly 13, shield cylinder 11 is fixedly installed in mounting seat 3, source body cylinder 12 is sheathed in shield cylinder 11 by clutch shaft bearing 15, collimation body drum assembly is sheathed in source body cylinder 12 by the second bearing 16, this shield cylinder 11, source body cylinder 12 and collimation body drum assembly 13 totally one rotary middle spindle, source body cylinder 12 and collimation body drum assembly 13 can be driven respectively around the 360 degree of rotations of its central shaft by source body Rolling motor (not shown) and collimation body Rolling motor (not shown) respectively, therapeutic equipment main body 1 also comprises the radiation source assemblies 14 that can provide ray, this ray can be gamma ray, this radiation source assemblies 14 is dismountable to be installed on source body cylinder 12, can rotate with source body cylinder 12 and rotate, collimation body drum assembly 13 comprises the collimator 131 that a ray radiated with radiation source assemblies 14 is used in combination, this therapeutic bed 2 is arranged along the central axial direction of shield cylinder 11, through in therapeutic equipment main body 1, and be treated equipment body 360 degree of complete cycles encirclements, drive radiation source assemblies 14 to rotate when source body cylinder 12 rotates, the patient of the ray that radiation source assemblies 14 radiates after the limit bundle of collimator 131 on directive therapeutic equipment main body 1 internal therapy bed 2, can carry out rotating arbitrarily arcing within the scope of 360 degree to focus and irradiate.
The dosage field in launched field is when made to be uniformly distributed as far as possible in order to improve burnt skin, the central shaft that beam is distributed around self that can set up an organization rotates, shown in Fig. 4 and Fig. 6, the radiation source assemblies of the present embodiment is provided with source of the penetrating body 141 that has rotary middle spindle, this is penetrated and source body 141 offers multiple putting hole of installing for radioactive source and ray portals, radioactive source is installed in putting hole, the ray radiated is portalled after expansion by ray and forms the injection of equally distributed in the same way beam, this radiation source assemblies also comprises one end and source of the penetrating body axle 142 penetrated source body 141 and be fixedly connected with, its be positioned at penetrate source body 141 rotary middle spindle on, its other end is fixedly connected with a radioactive source gear 143, therapeutic equipment main body 1 is also provided with a radioactive source driving device 17, comprise the radioactive source drive motors (not shown) that a radioactive source ring gear 171 and has output gear 172, this radioactive source ring gear 171 is installed on by slide block (not shown) in the gathering sill of shield cylinder 11 inwall, and can around its center of rotation coaxial rotation, engage with the output gear 172 of radioactive source drive motors and radioactive source gear 143 while of radioactive source ring gear 171, further, the both ends of the surface of radioactive source ring gear 171 are equipped with latch, the latch of one end engages with radioactive source gear 143, the latch of other end engages with the output gear 172 of radioactive source drive motors, when radioactive source drive motors drives output gear 172 to rotate, radioactive source ring gear 171 is driven to rotate, making to penetrate source body 141 further by drive radioactive source gear 143 rotates again around himself rotary middle spindle rotates, thus achieves beam around the central shaft rotation himself distribute.
Further, shown in Figure 6, source of the penetrating body 141 of the present embodiment is made up of the mount pad 1411 of the concentricity axle be set-located and precollimator 1412, this radioactive source putting hole is positioned on mount pad 1411, this ray portals and is positioned on precollimator 1412, radioactive source putting hole and ray portal corresponding setting can conducting, mutually can rotate along its central shaft between mount pad 1411 and precollimator 1412, this penetrate source body axle 142 by concentricity axle and the axle sleeve 1421 be set-located and rotating shaft 1422 form, this radioactive source gear 143 is made up of mount pad gear 1431 and precollimator gear 1432, this rotating shaft 1422 is inserted in axle sleeve 1421 can rotate mutually, and its one end is fixedly connected with precollimator 1412, the other end is fixedly connected with precollimator gear 1432, this axle sleeve 1421 one end is fixedly connected with mount pad 1411, the other end is fixedly connected with mount pad gear 1431, radioactive source ring gear 171 comprises concentricity axle and the first ring gear 1711 and the second ring gear 1712 be set-located, it is driven by different radioactive source drive motors respectively, can rotate each other around its central shaft, first ring gear 1711 engages with mount pad gear 1431, and the second ring gear 1712 engages with precollimator gear 1432, when motor drives first and second ring gear 1711,1712 synchronous axial system, drive mount pad 1411 and precollimator 1412 synchronous axial system, namely realize penetrating the rotation around its central shaft of source body 141 and the ray that radiates thereof, when the asynchronous driving of motor first and second ring gear 1711,1712 time, it drives mount pad 1411 and precollimator 1412 asynchronous rotary respectively, now, the dislocation of portalling of radioactive source putting hole and ray forms not conducting, radioactive source putting hole one end is by shutoff, ray cannot penetrate, so achieve the control of the beam switch to radiation source assemblies 14.
Shown in Fig. 4 and Fig. 6, penetrate source body 141 for cone, the wall body of source body cylinder 12 offers pyramid type through hole, vertical with the rotary middle spindle of source body cylinder 12 in the radial direction that the central axis of pyramid type through hole is positioned at source body cylinder 12, the diameter of this pyramid type through hole is reduced gradually by the inside side of lateral surface of source body cylinder 12, inside slippage is unlikely to make to penetrate when source body 141 is installed in the pyramid type through hole on this source body cylinder by suitable bearing or slide rail (not shown), be equipped with cone bearing (not shown) or sliding track mechanism (not shown) between the inwall penetrating source body 141 and this pyramid type through hole to support and penetrate source body 141 and rotate around himself central shaft, because this integral embedded type of radiation source assemblies is installed, when source is penetrated in needs replacing, radiation source assemblies entirety can be taken out and change source, reduce the risk that unit one by one changes source.
Shown in Figure 4, the inwall of source body cylinder 12 offers the first circular image guiding device and through hole 121 and rectangular second image guiding device installation through hole 122 are installed, this first, second image guiding device through hole 121,122 is installed and radiation source assemblies 14 coplanar and be 180 degree along the radial direction of source body cylinder and arrange in opposite directions, in addition they and and angle between this radiation source assemblies 14 be 90 degree.The image guiding device of the present embodiment comprises transmitting terminal and receiving terminal, transmitting terminal is installed on the first image guiding device and installs in through hole, receiving terminal is installed on described second image guiding device and installs in through hole, further, the image guiding device of the present embodiment can be DR digital x-ray imaging system, further can be CBCT conical beam CT imaging system.
Further, shown in Fig. 4 and Fig. 6, the therapeutic equipment main body 1 of the present embodiment is also provided with a dummy source assembly 14a, this dummy source assembly 14a has the structure identical with radiation source assemblies 14 and installation form, it is provided with simulation equally and penetrates source body, source body axle and simulated emission source gear are penetrated in simulation, between itself and radiation source assemblies 14 in 180 degree in opposite directions symmetry the source that is installed on body cylinder 12 on pyramid type through hole in, unlike, what install in the putting hole of source of the penetrating body of radiation source assemblies 14 is radioactive source, and what arrange in dummy source assembly 14a is light source, such as laser lamp, rotational source body cylinder 12, radiation source assemblies 14 and dummy source assembly 14a position are exchanged, the visual of ray path and focus is realized by (laser) light open country, the visual simulation of therapeutic process, in addition light open country is adopted also can to meet preliminary Beam's eye view and relevant nuclear physics experiment checking demand.
Shown in Figure 7, the collimation body cylinder 13 of the present embodiment is cylindrical tube shape, can rotate around its central shaft, and it comprises an arc collimator 131, can rotate and rotate with collimation body cylinder 13, and this collimator can be arc multi-vane grating or circular view aligner; Arc multi-vane grating can be made up of multipair blade and many group micro machines, the longitudinal section of its blade for large launched field design requirement can curvedly distribute, be arranged in fan-shaped or spherical crown shape, design requirement for little launched field also can linearly distribute, be arranged in plane, the stroke of each blade of adjustment arc multi-vane grating, to form difform launched field, can reach conformal intensity modulated function, and coordinates the movement velocity of each blade can also realize dynamically adjusting by force; Arc multi-vane grating also can be replaced with circular view aligner, and the conical bore it offering different size is wild with the circle forming different size, the circle of applicable size can be selected wild by rotating collimation body cylinder 13.Collimation body cylinder 13 is also installed with the balancing weight 132 arranged in opposite directions with this collimator 131, make collimation body cylinder 13 Mass Distribution even, can rotate time held stationary, simultaneously, also when therapeutic state, it can be moved to below radiation source assemblies in advance, the rotation angle of sensitive organization need be protected to block; This balancing weight 132 is provided with a platform, the plane of this platform is towards collimator 131, can balancing weight 132 rotated to below, using the platform that this platform is tested as nuclear physics, by making various mark and frock on platform, nuclear physics test can easily be carried out, as placed 3 d water tank, the centers etc. such as verification.Two openings 133,134 that collimation body drum assembly 13 is formed diametrically, for image guiding device reserves image collection space, this two opening 133,134 is between collimator 131 and balancing weight 132, distribute in 90 degree with collimator 131 respectively, two openings 133,134 of the line between through hole 121,122 through this collimation body drum assembly installed by first and second image guiding device, so that image guiding device monitors guiding in real time to the focus being positioned at radiotherapy equipment main body.
Further, shown in Fig. 4 and Fig. 8, shield cylinder 11 offers symmetrically arranged in opposite directions two loading of source holes 111 in radial directions, lay respectively at the horizontal two ends of described shield cylinder 11, loading of source hole 111 uses when being used as new clothes and changing radiation source assemblies, also can be used for ordinary maintenance, and the adjustment and installation etc. of image guiding device, this therapeutic equipment main body 1 is also provided with two loading of source hole sprues 18, coordinate with the loading of source hole 111 on this shield cylinder 11 respectively and install, these two loading of source holes 111 all clog with this sprue 18 usually.
Shown in Figure 9, source body cylinder 12 and collimation body cylinder 13 are installed with coaxial source body ring gear 121 respectively in the both ends of the surface of axis, collimation body ring gear 132, this source body ring gear 121, collimation body ring gear 132 is respectively with source body Rolling motor (not shown) and collimate body Rolling motor (not shown) and coordinate, and driven rotation by it respectively, realize shield cylinder 11, source body cylinder 12 and the mutual rotation collimated between body drum assembly 13, this source body Rolling motor and collimation body Rolling motor are all located at ground less than 4, be installed in mounting seat 3, reduce noise, because each cylinder all adopts independent drive motors, avoid dynamic cabling.
Return hospitality and consult shown in Fig. 4 and Fig. 5, mounting seat 3 is fixedly arranged on floor less than 4, shield cylinder 11 and source body cylinder 12 part are located at floor less than 4, now the under ground portion of source body cylinder 12 forms a screened room, when equipment quits work, radiation source assemblies 14 can be rotated and store under ground portion, strengthen shield effectiveness, reduce the radiocontamination to surrounding enviroment.
When radiotherapy equipment of the present invention is installed, therapeutic equipment main body 1 and therapeutic bed 2 are all fixedly installed in mounting seat 3, therapeutic bed 2 after installing can realize around fixing center of rotation in horizontal direction ± 25 degree rotate and put positions, after therapeutic equipment main body 1 and therapeutic bed 2 all install, the debugging of complete machine factory can be carried out, after, reproduce field integral hoisting, save the installation and debugging time.
Be described below in conjunction with the specific works process of accompanying drawing to the present embodiment radiotherapy equipment:
Motor drive source body cylinder and collimation body drum assembly synchronous axial system before the treatment starts, the present embodiment image guiding device as required to the patient be positioned on therapeutic bed carry out different angles DR image collection or the CBCT image collection of 360 degree of complete cycles, the image information collected is inputed in image coordinate registration arrangement and corrects, the timely adjustment position of patient and the coordinate figure of three-dimensional therapeutic bed, the target spot realized before treatment is accurately located.
During treatment, source body Rolling motor drive source body cylinder 12 rotates, radiation source assemblies 14 is driven to rotate around the central shaft of source body cylinder 12, namely ray revolution is produced, the radioactive source ring gear 171 be now meshed with radioactive source gear 141 in radiation source assemblies 14 remains static, radioactive source gear 141 is caused to rotate around himself central shaft under the effect of radioactive source ring gear 171 latch, thus drive radiation source assemblies 14 to rotate around himself central shaft, so, ray produces rotation while revolution, achieves any rotary arcing action within the scope of 360 degree.
When source body cylinder 12 is arbitrarily angled static, radioactive source drive motors drives its output gear 172 to rotate, thus drive radioactive source ring gear 171 to rotate around himself central shaft and source body drum central axis, radioactive source gear 141 is driven to rotate around himself central shaft more further, thus drive radiation source assemblies 14 to rotate around himself central shaft, namely produce ray rotation, achieve fixed point rotary at any angle and irradiate action.
When source body Rolling motor and radioactive source drive motors all act on, then by regulating its rotating speed to control the rotating speed of source body cylinder 12 and radiation source assemblies 14, realize the combination of different revolution and rotational velocity according to clinical needs.
If meet the situation having sensitive organization to need to avoid protection on the path rotating arcing; can take interim measures; the ray of the radiation source assemblies 14 through this path is closed, waiting by opening it again behind this section of path, realizing 360 degree of continual rotations with this.Wherein close the path place that also balancing weight 132 on collimation body cylinder 13 can be rotated in advance while radiation source assemblies 14 to sensitive organization to be blocked, improve the protected ability of sensitive organization.
Over the course for the treatment of, the image guiding device of the present embodiment also can realize dynamic image collection to patient, in the state of treatments period, monitoring is in real time realized to focus and normal structure, by by timing acquiring to information conveyance carry out registration process to coordinate registration system, synchronous feedback is to the coordinate control system of therapeutic bed 2, make therapeutic bed 2 can the Changing Pattern of synchronized tracking patient focus, the D coordinates value of timely adjustment therapeutic bed 2, allow irradiation field tightly " follow " target area, thus realize real-time accurate treatment.Meanwhile, owing to can realize the treatment of image guiding in real time, the radiotherapy equipment of the present embodiment can be applicable to the treatment of head and body sufferer.
The radiotherapy equipment of the present embodiment is revolved round the sun around the rotary middle spindle of therapeutic equipment main body by the radiation source assemblies that rotarily drives of control source body cylinder, further drive radiation source assemblies produces rotation, or source body cylinder is static at a certain fixed angle, rotate by controlling radioactive source driven by motor radioactive source ring gear, further drive radiation source assemblies carries out rotation in this fixing angle, thus the rotation arcing achieved in fixed point irradiation at any angle and any range is irradiated, 360 degree of whole circles irradiate, farthest improve burnt skin ratio, improve focus place quality; By adopting the dismountable radiation source assemblies be installed on the body cylinder of described source, achieving the integral replacing of radiation source assemblies, simplifying radioactive source and changing program, decreasing unit one by one simultaneously and change the risk in source; By the setting of dummy source, achieve the visual simulation of visual, the therapeutic process of ray path and focus; By adopting arc multi-vane grating to coordinate with radiation source assemblies, achieve conformal therapy; By arranging the semi-underground installation of shield cylinder, achieving the multiple shield of radioactive source, reducing the risk that radioactive source pollutes; By therapeutic bed and therapeutic equipment main body are installed in mounting seat, achieve realize complete machine factory debugging after on-the-spot integral hoisting, save the installation and debugging time.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any amendments done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. a radiotherapy equipment, is characterized in that, comprises a mounting seat, and the therapeutic bed be fixedly installed in described mounting seat and therapeutic equipment main body;
Described therapeutic equipment main body comprises a shield cylinder, the source body cylinder be sheathed in described shield cylinder, the drum assembly of stretched be surely sheathed in the body cylinder of described source, and a radioactive source driving device, described source body cylinder and described collimation body drum assembly all coaxial with described shield cylinder, described shield cylinder is fixedly installed in described mounting seat, described source body cylinder is driven by source body Rolling motor can around the 360 degree of rotations of its central shaft, and described collimation body drum assembly can around the 360 degree of rotations of its central shaft by collimating the driving of body Rolling motor;
Described therapeutic equipment main body also comprises the radiation source assemblies that can provide ray, described radiation source assemblies is removably installed on the body cylinder of described source, can rotate with source body drum rotating, described radiation source assemblies comprise penetrate source body and with the described radioactive source gear penetrated source body and be fixedly connected with, described radioactive source gear engages with described radioactive source driving device, makes to penetrate source body described in the driving of described radioactive source driving device and rotates around himself rotary middle spindle;
Described collimation body drum assembly comprises collimator, and the ray that described radiation source assemblies radiates is after the limit bundle of described collimator in therapeutic equipment main body described in directive;
Described therapeutic bed passes in described therapeutic equipment main body along the central axis direction of described shield cylinder, and is surrounded by described therapeutic equipment main body 360 degree of complete cycles.
2. a kind of radiotherapy equipment as claimed in claim 1, it is characterized in that, described source body of penetrating also comprises one end and described source of the penetrating body axle penetrated source body and be fixedly connected with, described penetrate source body axle be positioned at described in penetrate on the rotary middle spindle of source body, described radioactive source gear is fixedly connected with the described other end penetrating source body axle; Described radioactive source driving device comprises one and is installed on radioactive source ring gear in described shield cylinder and coaxial with described shield cylinder, and the radioactive source drive motors that has an output gear, described radioactive source ring gear simultaneously with output gear and the radioactive source gears meshing of radioactive source drive motors.
3. a kind of radiotherapy equipment as claimed in claim 2, it is characterized in that, described source body of penetrating is cone, the wall body of described source body cylinder offers pyramid type through hole, vertical with the rotary middle spindle of described source body cylinder in the radial direction that the central shaft of described pyramid type through hole is positioned at described source body cylinder, the diameter of described pyramid type through hole is reduced gradually by the inside side of lateral surface of described source body cylinder, described in penetrate in the suitable pyramid type through hole being installed on the body cylinder of described source of source body.
4. a kind of radiotherapy equipment as claimed in claim 2, it is characterized in that, the both ends of the surface of described radioactive source ring gear are equipped with latch, the latch of an end face and described radioactive source gears meshing, and the latch of other end engages with the output gear of described radioactive source drive motors.
5. a kind of radiotherapy equipment as claimed in claim 1, it is characterized in that, described therapeutic equipment main body also comprises a dummy source assembly, described dummy source assembly has the structure identical with radiation source assemblies, and and in 180 degree of symmetrical being in opposite directions installed on the body cylinder of described source between radiation source assemblies, in described dummy source assembly, light source is installed.
6. a kind of radiotherapy equipment as claimed in claim 1, is characterized in that, described collimator is arc multi-vane grating or circular view aligner.
7. a kind of radiotherapy equipment as claimed in claim 1, it is characterized in that, described shield cylinder offers loading of source hole in radial directions, described loading of source hole is symmetrically arranged in opposite directions two through holes, lay respectively at the horizontal two ends of described shield cylinder, described therapeutic equipment main body also comprises two loading of source hole sprues, coordinates respectively install with the loading of source hole on described shield cylinder.
8. a kind of radiotherapy equipment as claimed in claim 1, it is characterized in that, described source body cylinder and collimation body cylinder are provided with coaxial gear respectively in the both ends of the surface of axis, and described source body cylinder and the gear collimating body cylinder are respectively with source body Rolling motor and collimate body Rolling motor and coordinate.
9. a kind of radiotherapy equipment as claimed in claim 1, is characterized in that, described mounting seat is fixedly arranged on below ground, and described shield drum segment is located at below ground.
10. a kind of radiotherapy equipment as described in claim 1 to 9 any one, is characterized in that, the ray that described radiation source assemblies provides is gamma ray.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210171632.5A CN102688558B (en) | 2012-05-29 | 2012-05-29 | Radiation therapy equipment |
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| CN201210171632.5A CN102688558B (en) | 2012-05-29 | 2012-05-29 | Radiation therapy equipment |
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| CN102688558A CN102688558A (en) | 2012-09-26 |
| CN102688558B true CN102688558B (en) | 2015-06-03 |
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| WO2015062093A1 (en) * | 2013-11-01 | 2015-05-07 | 西安大医数码技术有限公司 | Multipurpose radiotherapy system |
| CN109432613B (en) * | 2014-05-22 | 2021-01-08 | 深圳市奥沃医学新技术发展有限公司 | Multi-source focusing therapy and conformal intensity modulated therapy radiotherapy equipment and collimator combination thereof |
| US10716956B2 (en) | 2015-04-21 | 2020-07-21 | Our United Corporation | Radiotherapeutic device |
| US10806949B2 (en) | 2016-11-15 | 2020-10-20 | Our United Corporation | Method and system of generating radiation treatment plan |
| CN108010412B (en) * | 2017-11-27 | 2020-03-17 | 中核控制系统工程有限公司 | Simulated radioactive source |
| CN107773853B (en) * | 2017-11-30 | 2022-02-15 | 上海联影医疗科技股份有限公司 | Linear accelerator system |
| CN108175958B (en) * | 2018-03-16 | 2020-03-17 | 西安大医集团有限公司 | Focusing head, collimator and gamma knife |
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