CN102688558A - Radiation therapy equipment - Google Patents
Radiation therapy equipment Download PDFInfo
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- CN102688558A CN102688558A CN2012101716325A CN201210171632A CN102688558A CN 102688558 A CN102688558 A CN 102688558A CN 2012101716325 A CN2012101716325 A CN 2012101716325A CN 201210171632 A CN201210171632 A CN 201210171632A CN 102688558 A CN102688558 A CN 102688558A
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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, relate in particular to a kind of radiotherapy equipment of gamma ray.
Background technology
The therapeutic equipment that at present with the gamma ray is radioactive source generally all is to utilize gamma ray is focused on irradiation to reach the protection normal structure at patient's target spot place, kills the purpose of focus.Along with the continuous progress of radiotherapy technology, the mode of ray focusing has developed into the rotating focus technology from the mode of static focus.The rotating focus technology is exactly that the target spot that lets gamma ray center on the patient constantly is rotated motion, improves burnt skin ratio with this, reduces the suffered average exposure dose of normal structure.The mode of rotating focus generally has two kinds: a kind of is that ray carries out rotation along a certain axis through patient's target spot, and another kind is exactly that ray revolves round the sun along a certain axis through patient's target spot.
Existing radiotherapy equipment referring to shown in Figure 1, adopts a plurality of radiation unit to be distributed on same hemisphere or the ball-crown body according to different longitudes and latitudes; Referring to shown in Figure 2; Its hemisphere or ball-crown body are rotated motion around the axis a of himself, because the central shaft of each radiation unit self can cross to a bit at centre of sphere place at this moment, have therefore formed the bullet beam; Joint is exactly the rotating focus point, the set-point of focus when just treating.This type of radiotherapy equipment is owing to only adopt the mode around self central shaft rotation; Make ray lack motility for the avoidance of sensitive organization; Burnt skin is than fully not bringing up to optimum state; Dosage field anastomose property for irregular open country, special wild irradiation is not enough, and the dosage field of focal spot is sphere or water droplet shape, can only adopt the mode of filling or extending out to adapt to the wild irradiation of radiation clinically; And can not realize the clinical demand of revolving fixed point or arcing irradiation, also be difficult to transfer simultaneously strength reason and reverse plan.In other existing radiotherapy equipments; Adopt beam to treat around the mode that target spot revolves round the sun; But because beam can not rotation, or compelledly adopt single source to cause the focus close rate not reach clinical requirement, or adopt multi-source to cause the dosage field distribution its target area in even inadequately; And in practice because 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 to adopt the arc among a small circle under the certain angle to focus on irradiation, so just greatly reduces the advantage of revolution; Owing to there is the unsymmetry of arc irradiation, can reduce the quality of design of along on the contrary simultaneously.
Summary of the invention
The object of the present invention is to provide a kind of radiotherapy equipment; Through being provided with that coaxial on the said therapeutic equipment main body is set-located and revolvable each other shield cylinder, the source body cylinder that has radiation source assemblies, collimation body drum assembly; Therapeutic bed 360 degree complete cycles are surrounded, solved ray and can not spend the problem of whole circle irradiation, and moved with the difference that cooperates between the radioactive source ring tooth through the control radiation source assemblies around 360 of target spot; The rotation and the revolution of ray are combined; Realized fixing a point at any angle any rotation arcing irradiation in rotary irradiation and the 360 degree scopes farthest improves burnt skin ratio, improves the along quality.
The present invention is achieved in that a kind of radiotherapy equipment, comprises a mounting seat, and is fixedly installed in therapeutic bed and therapeutic equipment main body on the said mounting seat; Said therapeutic equipment main body comprises a shield cylinder; Also comprise a source body cylinder that is sheathed in the said shield cylinder; And be sheathed on the drum assembly of stretched surely in the body cylinder of said source; Said source body cylinder and said collimation body drum assembly are all coaxial with said shield cylinder; Said shield cylinder is fixedly installed on the said mounting seat, and said source body cylinder is driven by source body Rolling motor can be around its central shaft 360 degree rotations, and said collimation body drum assembly is driven by collimation body Rolling motor can be around its central shaft 360 degree rotations; Said therapeutic equipment main body comprises that also one can provide the radiation source assemblies of ray; Said radiation source assemblies is removably installed on the body cylinder of said source; Can rotate with source body cylinder; Said collimation body drum assembly comprises a collimator, and the ray that said radiation source assemblies radiates is through in the said therapeutic equipment main body of directive behind the limit bundle of said collimator; Said therapeutic bed passes in the said therapeutic equipment main body along the central axis direction of said shield cylinder, and is surrounded by said therapeutic equipment main body 360 degree complete cycles.
Further; Said radiation source assemblies comprises penetrates the source body; The said source body of penetrating has central shaft; Comprise that also an end penetrates the source of the penetrating axon that the source body is fixedly connected with said, said penetrate the source axon be positioned at the said rotary middle spindle of penetrating the source body on, the said other end of penetrating the source axon is fixedly connected a radioactive source gear; Said therapeutic equipment main body also comprises a radioactive source driving device; Said radioactive source driving device comprise one be installed in the said shield cylinder and with the co-axial radioactive source ring gear of said shield cylinder; And one have an output gear the radioactive source drive motors, said radioactive source ring gear simultaneously with the output gear and the radioactive source gears engaged of radioactive source drive motors.
Further; The said source body of penetrating is a cone; Offer the pyramid type through hole on the wall body of said source body cylinder; The footpath that the central shaft of said pyramid type through hole is positioned at said source body cylinder upwards and vertical with the rotary middle spindle of said source body cylinder, the diameter of said pyramid type through hole is reduced by the inside side of lateral surface of said source body cylinder gradually, saidly penetrates adaptive being installed in the pyramid type through hole on the body cylinder of said source of source bulk phase.
Further, the both ends of the surface of said radioactive source ring gear are equipped with latch, the latch of an end face and said radioactive source gears engaged, the output gear engagement of the latch of other end and said radioactive source drive motors.
Further; Said therapeutic equipment main body also comprises a dummy source assembly; Said dummy source assembly has the structure identical with radiation source assemblies, and and radiation source assemblies between be 180 the degree symmetric in opposite directions being installed on the body cylinder of said source, in the said dummy source assembly light source is installed.
Further, said collimator is arc multi-leaf optical grating or circular view aligner.
Further; Said shield cylinder is offering the loading of source hole in the radial direction; Said loading of source hole is symmetrically arranged in opposite directions two through holes; Lay respectively at the horizontal two ends of said shield cylinder, said therapeutic equipment main body also comprises two loading of source hole sprues, respectively with said shield cylinder on the loading of source hole cooperate installation.
Further, said source body cylinder and collimation body cylinder are respectively equipped with co-axial gear on axial both ends of the surface, and said gear cooperates with source body Rolling motor and collimation body Rolling motor respectively.
Further, said mounting seat is fixedly arranged on below ground, and said shield drum segment is located at below ground.
Further, the ray that provides of said radiation source assemblies is a gamma ray.
The beneficial effect of the radiotherapy equipment that the employing embodiment of the invention provides is: the rotary middle spindle that centers on the therapeutic equipment main body through the rotation drive radiation source assemblies of controlling source body cylinder revolves round the sun; Further drive radiation source assemblies and produce rotation; Perhaps body cylinder in source is static at a certain fixed angle; Rotate through control radioactive source driven by motor radioactive source ring gear, further drive radiation source assemblies and carry out rotation, thereby realized the whole circle irradiation of rotation arcing irradiation, 360 degree in fixed point irradiation at any angle and any range in this fixed angle; Farthest improve burnt skin ratio, improve the along quality; Be installed on the dismountable radiation source assemblies on the body cylinder of said source through employing, realized the integral replacing of radiation source assemblies, simplified radioactive source and changed program, also reduced the risk that unit one by one changes the source simultaneously; Through the setting of dummy source, realized the visual simulation of visual, the therapeutic process of ray path and focus; Through adopting the arc multi-leaf optical grating to cooperate, realized conformal therapy with radiation source assemblies; Through the semi-underground installation of shield cylinder is set, realized the multiple shield of radioactive source, reduced the risk that radioactive source pollutes; Through therapeutic bed and therapeutic equipment main body are installed on the mounting seat, realized the on-the-spot integral hoisting after the debugging of complete machine factory finishes, saved the Installation and Debugging time.
Description of drawings
Fig. 1 is a radiotherapy unit sketch map in the prior art of the present invention;
Fig. 2 is the ray sketch map of prior art radiotherapy unit of the present invention;
Fig. 3 is a radiotherapy equipment structural representation of the present invention;
Fig. 4 is a radiotherapy equipment structure front section view of the present invention;
Fig. 5 is a radiotherapy equipment texture edge cutaway view of the present invention;
Fig. 6 is dummy source assembly of the present invention, radiation source assemblies and driving device structure sketch map thereof;
Fig. 7 is a collimation body drum assembly structural representation of the present invention;
Fig. 8 is a shield roller frame sketch map of the present invention;
Fig. 9 is source of the present invention body cylinder and collimation body drum assembly structural representation;
The specific embodiment
In order to make the object of the invention, technical scheme and advantage clearer,, the present invention is further elaborated below in conjunction with accompanying drawing and embodiment.Should be appreciated that specific embodiment described herein only in order to explanation the present invention, and be not used in qualification the present invention.
Fig. 3 is a radiotherapy equipment structural representation of the present invention, comprises a mounting seat 3, and is fixedly installed in therapeutic bed 2 and therapeutic equipment main body 1 on the mounting seat 3.
Referring to Fig. 4 and shown in Figure 5; Therapeutic equipment main body 1 comprises shield cylinder 11, source body cylinder 12 and the collimation body drum assembly 13 that is the cylindrical drum shape; Shield cylinder 11 is fixedly installed on the mounting seat 3; Source body cylinder 12 is sheathed in the shield cylinder 11 through clutch shaft bearing 15; Collimation body drum assembly is sheathed in the source body cylinder 12 through second bearing 16, and this shield cylinder 11, source body cylinder 12 and collimation body drum assembly 13 be totally one rotary middle spindle, and source body cylinder 12 and collimation body drum assembly 13 can be driven respectively by source body Rolling motor (figure does not show) and collimation body Rolling motor (figure does not show) respectively spends rotation around its central shaft 360; Therapeutic equipment main body 1 comprises that also one can provide the radiation source assemblies 14 of ray; This ray can be gamma ray; These radiation source assemblies 14 dismountable being installed on the source body cylinder 12; Can rotate with source body cylinder 12, collimation body drum assembly 13 comprises the collimator 131 that matches and use with ray that radiation source assemblies 14 radiates; This therapeutic bed 2 is arranged along the central axial direction of shield cylinder 11; Pass in the therapeutic equipment main body 1; And by the 360 degree complete cycles encirclements of therapeutic equipment main body; When 12 rotations of source body cylinder, drive radiation source assemblies 14 rotations, the ray that radiation source assemblies 14 radiates can carry out rotation arcing irradiation arbitrarily in the 360 degree scopes to focus through the patient on the directive therapeutic equipment main body 1 internal therapy bed 2 behind the limit bundle of collimator 131.
When make the dosage field uniform distribution as far as possible in the launched field in order to improve burnt skin; Can set up an organization and make beam center on self center of distribution axle to be rotated; Referring to Fig. 4 and shown in Figure 6; The radiation source assemblies of present embodiment be provided with one have a rotary middle spindle the source of penetrating body 141, this is penetrated and offers putting hole and the ray that a plurality of confession radioactive sources install on the source body 141 and portal, radioactive source is installed in the putting hole; The ray that radiates portals through ray and forms equally distributed in the same way beam behind the expansion and penetrate; This radiation source assemblies also comprises an end and penetrates the source of the penetrating axon 142 that source body 141 is fixedly connected, and it is positioned on the rotary middle spindle of penetrating source body 141, and its other end is fixedly connected a radioactive source gear 143; Also be provided with a radioactive source driving device 17 on the therapeutic equipment main body 1; Comprise that a radioactive source ring gear 171 and has the radioactive source drive motors of output gear 172 (figure does not show); This radioactive source ring gear 171 is installed in the gathering sill of shield cylinder 11 inwalls through slide block (figure does not show), and can center on its center of rotation coaxial rotation, and output gear 172 and the radioactive source gear 143 of 171 whiles of radioactive source ring gear with the radioactive source drive motors meshes; Further; The both ends of the surface of radioactive source ring gear 171 are equipped with latch, the latch of one end and 143 engagements of radioactive source gear, output gear 172 engagements of the latch of other end and radioactive source drive motors; When the radioactive source drive motors drives output gear 172 rotations; Driving radioactive source ring gear 171 rotates; Further rotate to make again and penetrate source body 141, thereby realized that beam is around himself center of distribution axle rotation around himself rotary middle spindle rotation through drive radioactive source gear 143.
Further; Referring to shown in Figure 6, the source of the penetrating body 141 of present embodiment is made up of the mount pad 1411 and the precollimator 1412 of the concentricity axle that is set-located, and this radioactive source putting hole is positioned on the mount pad 1411; This ray portals and is positioned on the precollimator 1412; The corresponding setting conducting but radioactive source putting hole and ray portal can be rotated along its central shaft between mount pad 1411 and the precollimator 1412 each other, and this is penetrated source axon 142 and is made up of concentricity axle and the axle sleeve 1421 and the rotating shaft 1422 that are set-located; This radioactive source gear 143 is made up of mount pad gear 1431 and precollimator gear 1432; This rotating shaft 1422 is inserted in the axle sleeve 1421 and can rotates each other, and the one of which end is fixedly connected precollimator 1412, other end fixed connection precollimator gear 1432; These axle sleeve 1,421 one ends are fixedly connected mount pad 1411, and the other end is fixedly connected mount pad gear 1431; Radioactive source ring gear 171 comprises concentricity axle and first ring gear 1711 and second ring gear 1712 that are set-located; It is respectively by different radioactive source drive motor drives; Can rotate each other around its central shaft; First ring gear 1711 and 1431 engagements of mount pad gear, second ring gear 1712 and 1432 engagements of precollimator gear; When first and second ring gear 1711,1712 of motor-driven rotates synchronously; Drive mount pad 1411 and rotate synchronously with precollimator 1412, i.e. realization penetrate source body 141 and the ray that radiates around the rotation of its central shaft, when first and second ring gear of the asynchronous driving of motor 1711,1712; It drives mount pad 1411 and precollimator 1412 asynchronous rotations respectively; At this moment, radioactive source putting hole and ray portal to misplace and form not conducting, and radioactive source putting hole one end is by shutoff; Ray can't penetrate, so realized the control to the beam switch of radiation source assemblies 14.
Referring to Fig. 4 and shown in Figure 6; Penetrate source body 141 and be cone; Offer the pyramid type through hole on the wall body of source body cylinder 12; The footpath that the central axis of pyramid type through hole is positioned at source body cylinder 12 upwards and vertical with the rotary middle spindle of source body cylinder 12; The diameter of this pyramid type through hole is reduced by the inside side of lateral surface of source body cylinder 12 gradually; Be unlikely to inside slippage so that penetrate when source body 141 is installed in the pyramid type through hole on this source body cylinder through suitable bearing or slide rail (figure does not show), penetrate and be equipped with cone bearing (figure does not show) or sliding track mechanism (figure does not show) between the inwall of source body 141 and this pyramid type through hole and support and penetrate source body 141 and rotate around himself central shaft; Because the embedded installation of this integral body of radiation source assemblies, change when penetrating the source when needs, can whole taking-up of radiation source assemblies be changed the source, reduce the risk that unit one by one changes the source.
Referring to shown in Figure 4; Offer the circular first image guiding device installation through holes 121 and the rectangular second image guiding device installation through holes 122 on the inwall of source body cylinder 12; This first, second image guiding device installation through holes 121,122 and radiation source assemblies 14 coplanes and along the source 180 degree that radially are of body cylinder are provided with in opposite directions, in addition they and and this radiation source assemblies 14 between angle be 90 degree.The image guiding device of present embodiment comprises transmitting terminal and receiving terminal; Transmitting terminal is installed in the first image guiding device installation through holes; Receiving terminal is installed in the said second image guiding device installation through holes; Further, the image guiding device of present embodiment can be DR digital x-ray imaging system, further can be CBCT conical beam CT imaging system.
Further; Referring to Fig. 4 and shown in Figure 6, the therapeutic equipment main body 1 of present embodiment also is provided with a dummy source assembly 14a, and this dummy source assembly 14a has structure and the installation form identical with radiation source assemblies 14; It is provided with equally, and the source body is penetrated in simulation, source axon and simulated emission source gear are penetrated in simulation; Be between itself and the radiation source assemblies 14 in the symmetric in opposite directions pyramid type through hole that is installed on the source body cylinder 12 of 180 degree, different is that what to install in the putting hole of the source of the penetrating body of radiation source assemblies 14 is radioactive source; And what be provided with among the dummy source assembly 14a is light source; Such as laser lamp, rotational source body cylinder 12 is exchanged radiation source assemblies 14 and dummy source assembly 14a position; Can be through the wild visual simulation that realizes visual, the therapeutic process of ray path and focus of (laser) light, adopt the light open country also can satisfy preliminary launched field checking in addition and relevant nuclear physics experiment is verified demand.
Referring to shown in Figure 7, the collimation body cylinder 13 of present embodiment is a cylindrical tube shape, can be around its central shaft rotation, and it comprises an arc collimator 131, can rotate with collimation body cylinder 13, this collimator can be arc multi-leaf optical grating or circular view aligner; The arc multi-leaf optical grating can be made up of blade and many group micro machines many; The longitudinal section of its blade can curvedly distribute for the design requirement of big launched field, is arranged in fan-shaped or the spherical crown shape, also can linearly distribute for the design requirement of little launched field; Be arranged in plane; The stroke of each blade of adjustment arc multi-leaf optical grating can reach conformal intensity modulated function, and cooperate the movement velocity of each blade can also realize dynamically transferring strong to form difform launched field; The arc multi-leaf optical grating also can be replaced with circular view aligner, and the conical bore that offers different sizes on it can select to be fit to the circular wild of size to form the circular wild of different size through rotation collimation body cylinder 13.Also be installed with the balancing weight 132 that is provided with in opposite directions with this collimator 131 on the collimation body cylinder 13; Make that collimation body cylinder 13 Mass Distribution are even; Can be when rotating held stationary; Simultaneously, also can be when therapeutic state it be moved to below the radiation source assemblies in advance, protect the radiation angle of sensitive organization to block need; This balancing weight 132 is provided with a platform; The plane of this platform is towards collimator 131, can be below balancing weight 132 be rotated to after, with the platform of this platform as the nuclear physics test; Through on platform, making various signs and frock; Can easily carry out the nuclear physics test, as placing 3 d water tank, centers such as verification etc.Two openings 133,134 that collimation body drum assembly 13 forms diametrically; For the image guiding device is reserved the image collection space; This two opening 133,134 is between collimator 131 and balancing weight 132; Being 90 degree with collimator 131 respectively distributes; First and second image guiding device installation through holes 121, the line between 122 pass two openings 133,134 of this collimation body drum assembly, so that the image guiding device is monitored guiding in real time to being positioned at the intravital focus of radiotherapy equipment master.
Further; Referring to Fig. 4 and shown in Figure 8, shield cylinder 11 is offering symmetrically arranged in opposite directions two loading of source holes 111 in the radial direction, lays respectively at the horizontal two ends of said shield cylinder 11; When being used as new clothes and changing radiation source assemblies, loading of source hole 111 uses; Also can be used for ordinary maintenance, and the debugging installation of image guiding device etc., this therapeutic equipment main body 1 also is provided with two loading of source hole sprues 18; Respectively with this shield cylinder 11 on loading of source hole 111 cooperate installation, these two loading of source holes 111 all use this stifled fast 18 to clog usually.
Referring to shown in Figure 9; Source body cylinder 12 and collimation body cylinder 13 are installed with co-axial source body ring gear 121, collimation body ring gear 132 respectively on axial both ends of the surface, this source body ring gear 121, collimation body ring gear 132 cooperate with source body Rolling motor (figure does not show) and collimation body Rolling motor (figure does not show) respectively, and respectively by its driven in rotation; Realize the mutual rotation between shield cylinder 11, source body cylinder 12 and the collimation body drum assembly 13; This source body Rolling motor and collimation body Rolling motor all are located at ground below 4, are installed on the mounting seat 3, have reduced noise; Because each cylinder all adopts independent drive motors, has avoided dynamic cabling.
Return hospitality and consult Fig. 4 and shown in Figure 5; Mounting seat 3 is fixedly arranged on the floor below 4, and shield cylinder 11 and source body cylinder 12 parts are located at the floor below 4, and the under ground portion of source body cylinder 12 forms a screened room at this moment; When equipment quits work; Can radiation source assemblies 14 be rotated to the under ground portion storage, strengthen shield effectiveness, reduce radiocontamination surrounding enviroment.
When radiotherapy equipment of the present invention is installed; Therapeutic equipment main body 1 and therapeutic bed 2 all are fixedly installed on the mounting seat 3, and the therapeutic bed 2 after installing can be realized on the horizontal direction around fixed center of rotation ± 25 degree rotation pendulum positions, after therapeutic equipment main body 1 and therapeutic bed 2 all install; Can carry out the debugging of complete machine factory; After finishing, reproduce an integral hoisting, saved the Installation and Debugging time.
Describe below in conjunction with the concrete work process of accompanying drawing the present embodiment radiotherapy equipment:
Rotate synchronously at treatment beginning front motor drive source body cylinder and collimation body drum assembly; Present embodiment image guiding device as required to be positioned at patient on the therapeutic bed carry out different angles the DR image collection or the CBCT image collection of 360 degree complete cycles; The image information that collects inputed in the image coordinate registration arrangement proofread and correct; In time adjustment patient's the position and the coordinate figure of three-dimensional therapeutic bed realize that the target spot before the treatment is accurately located.
During treatment; Body Rolling motor drive source body cylinder 12 rotations in source drive the central shaft rotation of radiation source assemblies 14 body cylinder 12 around the source, promptly produce the ray revolution; The radioactive source ring gear 171 that is meshed of radioactive source gear 141 remains static on this moment and the radiation source assemblies 14; Cause radioactive source gear 141 under the effect of radioactive source ring gear 171 latches around the rotation of himself central shaft, thereby drive radiation source assemblies 14 around himself central shaft rotation, so; Ray produces rotation in revolution, realized any rotary arcing action in the 360 degree scopes.
When source body cylinder 12 arbitrarily angled static; Its output gear 172 of radioactive source drive motor drives rotates; Thereby driving radioactive source ring gear 171 is source body drum central axis rotation around himself central shaft, further drives radioactive source gear 141 again around himself central shaft rotation, thereby drives radiation source assemblies 14 around himself central shaft rotation; Promptly produce the ray rotation, the rotary irradiation action has realized fixing a point at any angle.
When source body Rolling motor and radioactive source drive motors are all done the time spent, then can control the rotating speed of source body cylinder 12 and radiation source assemblies 14 through regulating its rotating speed, realize the combination of different revolution and rotational velocity according to clinical needs.
If on the path of rotation arcing, meeting has sensitive organization need avoid the situation of protection; Can take interim measures; The ray of the radiation source assemblies 14 in the time of will passing through this path is closed, and waits through opening it behind this section path again, realizes the continual rotation of 360 degree with this.Block at the place, path that also can the balancing weight 132 on the collimation body cylinder 13 be rotated in advance sensitive organization when wherein closing radiation source assemblies 14, improves the protected ability of sensitive organization.
In therapeutic process; The image guiding device of present embodiment also can be realized the dynamic image collection to the patient; Focus and the normal structure state during treating is realized monitoring in real time, through with timing acquiring to information conveyance to coordinate registration arrangement carry out registration process, the coordinate control system of synchronous feedback to therapeutic bed 2; Make therapeutic bed 2 can follow the tracks of the Changing Pattern of patient's focus synchronously; In time the D coordinates value of adjustment therapeutic bed 2 lets irradiation field tightly " follow " target area, thereby realizes real-time accurate treatment.Simultaneously, owing to can realize the treatment of image guiding in real time, the radiotherapy equipment of present embodiment can be applicable to the treatment of head and body sufferer.
The radiotherapy equipment of present embodiment revolves round the sun through the rotary middle spindle that the rotation drive radiation source assemblies of controlling source body cylinder centers on the therapeutic equipment main body; Further drive radiation source assemblies and produce rotation; Perhaps body cylinder in source is static at a certain fixed angle; Rotate through control radioactive source driven by motor radioactive source ring gear, further drive radiation source assemblies and carry out rotation, thereby realized the whole circle irradiation of rotation arcing irradiation, 360 degree in fixed point irradiation at any angle and any range in this fixed angle; Farthest improve burnt skin ratio, improve the along quality; Be installed on the dismountable radiation source assemblies on the body cylinder of said source through employing, realized the integral replacing of radiation source assemblies, simplified radioactive source and changed program, also reduced the risk that unit one by one changes the source simultaneously; Through the setting of dummy source, realized the visual simulation of visual, the therapeutic process of ray path and focus; Through adopting the arc multi-leaf optical grating to cooperate, realized conformal therapy with radiation source assemblies; Through the semi-underground installation of shield cylinder is set, realized the multiple shield of radioactive source, reduced the risk that radioactive source pollutes; Through therapeutic bed and therapeutic equipment main body are installed on the mounting seat, realized the on-the-spot integral hoisting after the debugging of complete machine factory finishes, saved the Installation and Debugging time.
The above is merely preferred embodiment of the present invention, not in order to restriction the present invention, all any modifications of within spirit of the present invention and principle, being done, is equal to and replaces 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 is fixedly installed in therapeutic bed and therapeutic equipment main body on the said mounting seat;
Said therapeutic equipment main body comprises a shield cylinder; Also comprise a source body cylinder that is sheathed in the said shield cylinder; And be sheathed on the drum assembly of stretched surely in the body cylinder of said source; Said source body cylinder and said collimation body drum assembly are all coaxial with said shield cylinder; Said shield cylinder is fixedly installed on the said mounting seat, and said source body cylinder is driven by source body Rolling motor can be around its central shaft 360 degree rotations, and said collimation body drum assembly is driven by collimation body Rolling motor can be around its central shaft 360 degree rotations;
Said therapeutic equipment main body comprises that also one can provide the radiation source assemblies of ray; Said radiation source assemblies is removably installed on the body cylinder of said source; Can rotate with source body cylinder; Said collimation body drum assembly comprises a collimator, and the ray that said radiation source assemblies radiates is through in the said therapeutic equipment main body of directive behind the limit bundle of said collimator;
Said therapeutic bed passes in the said therapeutic equipment main body along the central axis direction of said shield cylinder, and is surrounded by said therapeutic equipment main body 360 degree complete cycles.
2. a kind of radiotherapy equipment as claimed in claim 1; It is characterized in that; Said radiation source assemblies comprises penetrates the source body, and the said source body of penetrating has central shaft, comprises that also an end penetrates the source of the penetrating axon that the source body is fixedly connected with said; The said source axon of penetrating is positioned on the said rotary middle spindle of penetrating the source body, and the said other end of penetrating the source axon is fixedly connected a radioactive source gear; Said therapeutic equipment main body also comprises a radioactive source driving device; Said radioactive source driving device comprise one be installed in the said shield cylinder and with the co-axial radioactive source ring gear of said shield cylinder; And one have an output gear the radioactive source drive motors, said radioactive source ring gear simultaneously with the output gear and the radioactive source gears engaged of radioactive source drive motors.
3. a kind of radiotherapy equipment as claimed in claim 2; It is characterized in that; The said source body of penetrating is a cone, offers the pyramid type through hole on the wall body of said source body cylinder, and the footpath that the central shaft of said pyramid type through hole is positioned at said source body cylinder upwards and vertical with the rotary middle spindle of said source body cylinder; The diameter of said pyramid type through hole is reduced by the inside side of lateral surface of said source body cylinder gradually, saidly penetrates adaptive being installed in the pyramid type through hole on the body cylinder of said source of source bulk phase.
4. a kind of radiotherapy equipment as claimed in claim 2; It is characterized in that; The both ends of the surface of said radioactive source ring gear are equipped with latch, the latch of an end face and said radioactive source gears engaged, the output gear engagement of the latch of other end and said radioactive source drive motors.
5. a kind of radiotherapy equipment as claimed in claim 1; It is characterized in that; Said therapeutic equipment main body also comprises a dummy source assembly; Said dummy source assembly has the structure identical with radiation source assemblies, and and radiation source assemblies between be 180 the degree symmetric in opposite directions being installed on the body cylinder of said source, in the said dummy source assembly light source is installed.
6. a kind of radiotherapy equipment as claimed in claim 1 is characterized in that, said collimator is arc multi-leaf optical grating or circular view aligner.
7. a kind of radiotherapy equipment as claimed in claim 1; It is characterized in that; Said shield cylinder is offering the loading of source hole in the radial direction, and said loading of source hole is symmetrically arranged in opposite directions two through holes, lays respectively at the horizontal two ends of said shield cylinder; Said therapeutic equipment main body also comprises two loading of source hole sprues, respectively with said shield cylinder on the loading of source hole cooperate installation.
8. a kind of radiotherapy equipment as claimed in claim 1; It is characterized in that; Said source body cylinder and collimation body cylinder are provided with co-axial gear respectively on axial both ends of the surface, said source body cylinder cooperates with source body Rolling motor and collimation body Rolling motor respectively with the gear of collimation body cylinder.
9. a kind of radiotherapy equipment as claimed in claim 1 is characterized in that said mounting seat is fixedly arranged on below ground, and said shield drum segment is located at below ground.
10. like any described a kind of radiotherapy equipment of claim 1 to 9, it is characterized in that the ray that said radiation source assemblies provides is a gamma ray.
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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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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015176265A1 (en) * | 2014-05-22 | 2015-11-26 | 数码医疗集团 | Multi-source focusing treatment and conformal intensity modulated radiotherapy equipment and collimator combination thereof |
| CN107773853A (en) * | 2017-11-30 | 2018-03-09 | 上海联影医疗科技有限公司 | A kind of linear accelerator system |
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| CN108245787B (en) * | 2013-11-01 | 2020-06-19 | 西安大医集团股份有限公司 | Multipurpose radiotherapy system |
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| WO2015176265A1 (en) * | 2014-05-22 | 2015-11-26 | 数码医疗集团 | Multi-source focusing treatment and conformal intensity modulated radiotherapy equipment and collimator combination thereof |
| CN106163613B (en) * | 2014-05-22 | 2019-01-08 | 深圳市奥沃医学新技术发展有限公司 | Multi-source focusing therapy and conformal intensity modulated treatment radiotherapy apparatus and its collimator arrangement |
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| CN108010412B (en) * | 2017-11-27 | 2020-03-17 | 中核控制***工程有限公司 | Simulated radioactive source |
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| 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 |
| CN107773853A (en) * | 2017-11-30 | 2018-03-09 | 上海联影医疗科技有限公司 | A kind of 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 |
| WO2019174461A1 (en) * | 2018-03-16 | 2019-09-19 | 西安大医集团有限公司 | Focusing head, collimator and gamma knife |
| CN108175958A (en) * | 2018-03-16 | 2018-06-19 | 西安大医数码科技有限公司 | Focus head, collimator and gamma knife |
| CN108364707A (en) * | 2018-03-20 | 2018-08-03 | 合肥美亚光电技术股份有限公司 | Ray collimator and ray radiation apparatus |
| CN108364707B (en) * | 2018-03-20 | 2023-09-22 | 合肥美亚光电技术股份有限公司 | Ray collimator and ray radiation device |
| CN108811295B (en) * | 2018-07-04 | 2019-10-15 | 中国原子能科学研究院 | Target drone structure is rotatably changed used in a kind of cyclotron |
| CN108811295A (en) * | 2018-07-04 | 2018-11-13 | 中国原子能科学研究院 | Rotary used in a kind of cyclotron changes target drone structure |
| CN109674486A (en) * | 2019-01-29 | 2019-04-26 | 北京纳米维景科技有限公司 | Preceding collimator apparatus and its static state CT imaging system for static CT imaging system |
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