CN209645666U - A kind of radiotherapy system - Google Patents
A kind of radiotherapy system Download PDFInfo
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- CN209645666U CN209645666U CN201821380057.9U CN201821380057U CN209645666U CN 209645666 U CN209645666 U CN 209645666U CN 201821380057 U CN201821380057 U CN 201821380057U CN 209645666 U CN209645666 U CN 209645666U
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Abstract
This application discloses a kind of radiotherapy systems, belong to field of medical technology.A kind of radiotherapy system, the radiotherapy system includes penetrating source device, the source device of penetrating includes multiple radiographic sources and collimation body, the source point of the multiple radiographic source is within the scope of the predetermined angle in longitudinal, multiple collimating aperture groups are provided on the collimation body, each collimating aperture group is being preset in angular range in the angle of longitudinal；Each collimating aperture group includes multiple collimating apertures, and the beam that the multiple radiographic source issues intersects at a public focus after each collimating aperture of the collimating aperture group.
Description
Technical field
This application involves field of medical technology, in particular to a kind of radiotherapy system.
Background technique
With the development of medical technology, radiotherapy is more and more widely used in the treatment to tumour.
It is existing for treat the radiotherapy system on head mainly to include gamma-knife on head, exemplary, institute as shown in Figure 1, Figure 2
Show, including penetrate source device and therapeutic bed, it is generally bowl-shape to penetrate source device, including shield, carries source body and collimation body, wherein screen
Body is covered for shielding ray.As shown in figure 3, radioactive source is divided into six groups, every group includes that total 30 of five sources are put for radioactive source arrangement
Source is penetrated, is distributed on the body of load source.Multiple collimating channels are provided on collimation body, the ray that radioactive source issues passes through collimating channel
Compared to intersection point.Collimating body includes six groups of collimating channel groups, and six groups of collimating channel groups are corresponding with six groups of source positions, Mei Gezhun
Straight channel group includes four groups, and each group includes 5 collimating apertures, and the collimating aperture of different groups is of different sizes.Therapeutic bed is used
It in carrying patient, and is moved to inside the treatment tank for penetrating source device, so that patient's lesion is located at point of intersection to radiate
Treatment.
It drives Dynamic Loading body and collimation body mutually rotates, to switch different size of collimating aperture, but the size of six groups of collimating apertures
Switch simultaneously, cannot individually control one group therein.Therefore, over the course for the treatment of, eyes (sensitive organization's device) are avoided only
It can be by adjusting gamma angle, i.e., so that ray is always without eyes.
Utility model content
This application provides a kind of radiotherapy systems, without adjusting gamma angle, can protect sensitivity over the course for the treatment of
Histoorgan.
On the one hand, a kind of radiotherapy system is provided, the radiotherapy system includes penetrating source device, described to penetrate source dress
It sets including multiple radiographic sources and collimation body, the source point of the multiple radiographic source is within the scope of the predetermined angle in longitudinal, institute
State and be provided with multiple collimating aperture groups on collimation body, each collimating aperture group longitudinal angle in default angular range
It is interior；
Each collimating aperture group includes multiple collimating apertures, and the beam that the multiple radiographic source issues passes through the collimating aperture
A public focus is intersected at after each collimating aperture of group.
Technical solution provided by the present application has the benefit that
It include penetrating source device this application provides a kind of radiotherapy system, penetrating source device includes multiple radiographic sources and collimation
Body, the source point of multiple radiographic sources collimate within the scope of the predetermined angle in longitudinal and are provided with multiple collimating aperture groups on body, often
A collimating aperture group is being preset in angular range in the angle of longitudinal；Each collimating aperture group includes multiple collimating apertures, multiple to penetrate
The beam that line source issues intersects at a public focus after each collimating aperture of collimating aperture group.Then radiotherapy system can lead to
Overload source body drives multiple radiographic sources along the center axis rotation of radiotherapy apparatus, when by sensitive organization or organ, by radiographic source
Carry out pass source；Radiographic source is increased income when by normal tissue organ, so as in head tumor therapeutic process, to guarantor
Eyeshield Jing Deng sensitive organization organ is protected, and additional injury is avoided.
Detailed description of the invention
It, below will be to required in embodiment description in order to illustrate more clearly of the technical scheme in the embodiment of the utility model
Attached drawing to be used is briefly described, it should be apparent that, the drawings in the following description are only some examples of the present application,
For those of ordinary skill in the art, without creative efforts, it can also be obtained according to these attached drawings
Other attached drawings.
Fig. 1 is a kind of structural schematic diagram of existing radiotherapy apparatus provided by the embodiments of the present application；
Fig. 2 is the existing structural schematic diagram for penetrating source device of one kind provided by the embodiments of the present application；
Fig. 3 is a kind of overlooking structure diagram of existing load source body provided by the embodiments of the present application；
Fig. 4 is the overlooking structure diagram of the existing collimation body of one kind provided by the embodiments of the present application；
Fig. 5 is a kind of schematic illustration of X-ray beam provided by the embodiments of the present application；
Fig. 6 is a kind of load source body schematic diagram provided by the embodiments of the present application；
Fig. 7 is a kind of collimation body schematic diagram provided by the embodiments of the present application；
Fig. 8 is a kind of radiotherapy system schematic diagram provided by the embodiments of the present application；
Fig. 9 is another radiotherapy system schematic diagram provided by the embodiments of the present application；
Figure 10 is another load source provided by the embodiments of the present application body schematic diagram；
Figure 11 is another collimation body schematic diagram provided by the embodiments of the present application；
Figure 12 is another radiotherapy system schematic diagram provided by the embodiments of the present application；
Figure 13 is another radiotherapy system schematic diagram provided by the embodiments of the present application；
Figure 14 is another collimation body schematic diagram provided by the embodiments of the present application；
Figure 15 is a kind of switch body schematic diagram provided by the embodiments of the present application；
Figure 16 is a kind of control driving method schematic diagram provided by the embodiments of the present application；
Figure 17 is provided by the embodiments of the present application a kind of to treat irradiates schematic diagram；
Figure 18 is another control driving method schematic diagram provided by the embodiments of the present application；
Figure 19 is another treatment irradiates schematic diagram provided by the embodiments of the present application；
Figure 20 is another control driving method schematic diagram provided by the embodiments of the present application；
Figure 21 is another control driving method schematic diagram provided by the embodiments of the present application；
Figure 22 is another control driving method schematic diagram provided by the embodiments of the present application.
Specific embodiment
To keep the purposes, technical schemes and advantages of the application clearer, below in conjunction with attached drawing to the application embodiment party
Formula is described in further detail.
The existing radiotherapy apparatus that can be used for head tumor, the principle of the radiotherapy of head tumor institute as shown in Figure 1, Figure 2
Show, carries source body 22 and multiple radioactive sources 111 are installed, the beam that multiple radioactive sources 111 issue is by the collimating aperture on collimation body 23
After intersect at a public focus Q1, and public focus Q1 is located at the penetrating in the cavity of source device 11 of radiotherapy apparatus.Therapeutic bed
12 for carrying patient, and is moved to inside the treatment tank for penetrating source device 11 so that patient's lesion be located at point of intersection with into
Row radiotherapy.
Wherein, its load source body 22 of existing radiotherapy apparatus is illustrated in figure 3 bowl-shape, and it is six groups that radioactive source 111, which divides, every group of packet
It includes five sources and amounts to 30 radioactive sources 111, be distributed on load source body 22.Collimation body 23 on collimation body 23 as shown in figure 4, set
It is equipped with including six groups of collimating channel groups, six groups of collimating channel groups are corresponding with six groups of 111 positions of radioactive source, each collimating channel group packet
Four groups are included, solid tungsten bar are filled in the collimating aperture of one of group to realize that pass source shields, each group in addition wraps
5 collimating apertures are included, the collimating aperture of different groups is of different sizes.
Treatment when, can drive Dynamic Loading body 22 and collimation body 23 mutually rotate, come switch different size of collimating aperture with
And radioactive source 111 is shielded to realize switch source by collimation body 23, but the size of six groups of collimating apertures switches and switch source is cut simultaneously
It changes, cannot individually control one group therein.Therefore, over the course for the treatment of, to avoid eyes (sensitive organization's organ) can only pass through
Gamma angle is adjusted, so that ray avoids eyes.
A kind of radiotherapy system provided by the present application, radiotherapy system include penetrating source device 11, penetrate the packet of source device 11
Multiple radiographic sources and collimation body 23 are included, the source point of multiple radiographic sources collimates body 23 within the scope of the predetermined angle in longitudinal
On be provided with multiple collimating aperture groups, each collimating aperture group longitudinal angle in default angular range；Each collimating aperture
Group includes multiple collimating apertures, and the beam that multiple radiographic sources issue intersects at a public coke after each collimating aperture of collimating aperture group
Point Q1.
It should be noted that radiographic source can be X-ray acceleration system in the application, then beam is X-ray beam；Alternatively,
It is gamma ray radiator 111 (also referred to as radioactive source 111 below) that radiographic source, which can be radiographic source, then beam is beam,gamma-ray.If beam is X
Beam, principle are that electron beam is beaten on target body, generate X-ray beam, then the source point of radiographic source can be 5 figures such as and show X
The intersection point of the reverse extending line of beam.If beam is beam,gamma-ray, the source point of radiographic source is that can be isotope radioactive source
111, such as cobalt -60.
It is separately below that X-ray acceleration system and gamma ray radiator 111 are illustrated to radiographic source.
Exemplary, using radiographic source as 111 cobalt -60 of radioactive source, i.e., radiographic source is gamma ray radiator 111, and penetrating source device 11 includes
Load source body 22 carries and is provided with multiple gamma ray radiators 111 on source body 22, and multiple gamma ray radiators 111 are distributed in pre- in longitudinal
If in angular range.Exemplary, as shown in Figure 8, Figure 9 radiotherapy system, carry source body 22 can be as shown in fig. 6,
It is provided with multiple gamma ray radiators 111 on load source body 22, collimation body 23 can be as shown in fig. 7, carrying source body 22 and collimating body 23 and be
Bowl-shape, longitudinal is as shown by arrows in figure, moves towards direction for 0 ° -360 ° of longitude.Alternatively, radiation as shown in figure 12 is controlled
Treatment system, penetrating source device 11 can also be tubular, and carrying source body 22 can be as shown in Figure 10, and collimation body 23 can be such as Figure 11 institute
Show, carrying source body 22 and collimation body 23 is tubular, and longitudinal is as shown by arrows in figure, moves towards direction for 0 ° -360 ° of longitude.
Rotary table both ends are in the same size in Figure 12, naturally it is also possible to be it is of different sizes, it is exemplary as shown in figure 13.The application is for penetrating source dress
11 concrete shape is set without limitation, only for above-mentioned.
By taking Fig. 8, radiation therapy treatment system shown in Fig. 9 as an example, illustrate the angular range of the application.As shown in fig. 6, radioactive source
111 longitudinal the angle angle that be with the center of radioactive source 111 be with reference to formation.It is necessary to be noted that
If radioactive source 111 includes a row, and positioned at the center of multiple radioactive sources 111 of same row on same meridian, then it is assumed that should
Multiple radioactive sources 111 are zero degree in the angle of longitudinal, in the application, preset angular range and are more than or equal to zero degree.Such as Fig. 7 institute
Show, it is angle with reference to formation that collimate body 23, which in the angle of longitudinal be with the center for collimating body 23,.It needs exist for especially saying
It is bright, if collimation body 23 includes a row, and is then recognized on same meridian positioned at the center of multiple collimation bodies 23 of same row
In the angle of longitudinal it is zero degree for multiple collimation body 23, in the application, presets angular range and be more than or equal to zero degree.
As shown in fig. 6, being a kind of load source body 22 provided by the present application, carries and be provided with multiple radioactive sources 111 on source body 22, it is more
A radioactive source 111 is A in the angle of longitudinal.Exemplary, which can be 15 ° -60 °, i.e. and 15 °≤A≤
60 °, default angular range A can be any angle within the scope of 15 ° -60 °, exemplary, which can be
5 ° -60 °, i.e. 5 °≤A≤60 °, default angular range A can be any angle within the scope of 5 ° -60 °, exemplary, preset angle
Range A can be 5 °, 8 °, 10 °, 12 °, 18 °, 20 °, 25 °, 30 °, 40 °, 45 °, 50 ° or 60 °.For of radioactive source 111
Several and arrangement mode, without limitation, the number of corresponding radioactive source 111 generally can be 20-180 to the application, such as can be with
It is 30 or 180.Only only illustrated by taking 24 radioactive sources 111 as an example shown in Fig. 6.
It is exemplary, as shown in fig. 7, the collimation body 23 bowl-shape for one kind provided by the present application, Fig. 7 are arranged on body 23 with collimating
For having 4 collimating aperture groups, respectively 1. number collimating aperture group, 2. number collimating aperture group, 3. number collimating aperture group, and 4. number collimating aperture
Group, each collimating aperture group respectively include 24 collimating apertures, and corresponding with the distribution of radioactive source 111.By taking 1. number collimating aperture group as an example,
The beam that multiple radioactive sources 111 issue intersects at a public focus Q1 after 1. each collimating aperture of number collimating aperture group.Wherein,
1. number collimating aperture group, 2. number collimating aperture group, 3. number collimating aperture group, and 4. number collimating aperture group in the angle of longitudinal in default folder
In angular region, Fig. 7 is by taking 1. number collimating aperture group as an example, 1. folder of number collimating aperture group in longitudinal (arrow direction shown in Fig. 7)
Angle is A, exemplary, which, with the default angle for the radioactive source 111 for carrying source body 22, is 5 ° -60 °.
Multiple collimating aperture groups are provided on collimation body 23, can collimate and be provided with two or more collimating apertures on body 23
Group, Fig. 7 are only illustrated for collimating and 4 collimating aperture groups are arranged on body 23.Each collimating aperture group includes multiple collimations
Hole, multiple collimating aperture correspond to radioactive source 111 number and arrangement mode with carry source body 22 on multiple radioactive sources 111 it is corresponding,
So that the beam that radioactive source 111 issues intersects at a public focus Q1 after passing through collimating aperture.
It is exemplary, it as shown in figure 12, penetrates source device 11 and is also possible to tubular, then as shown in Figure 10, carrying source body 22 can also be with
It is tubular as shown in Figure 10, longitudinal is direction shown in arrow in Figure 10.It is big to carry 22 both ends of source body for tubular in Figure 10
It is small it is consistent for.For the specific number and arrangement mode of radioactive source 111, the application without limitation, only to include 20 in Figure 10
It is illustrated for a radioactive source 111.Collimation body 23 is also possible to tubular as shown in figure 11, and multiple collimating aperture is corresponding
The number and arrangement mode of radioactive source 111, this will not be repeated here.The application is for collimating the number of the collimating aperture group on body 23 not
It limits, to collimate on body 23 setting there are two for collimating aperture group in Figure 11, and each collimating aperture group includes 20 collimating apertures
For illustrated.
Certainly, source device 11 is penetrated to be also possible to as shown in figure 13, penetrate source device 11 and be also possible to tubular, tubular in Figure 13
Load source 22 both ends of body are of different sizes.
A kind of radiotherapy system provided by the present application include penetrate source device 11, penetrate source device 11 include multiple radiographic sources and
Body 23 is collimated, the source point of multiple radiographic sources collimates within the scope of the predetermined angle in longitudinal and is provided with multiple standards on body 23
Straight hole group, each collimating aperture group are being preset in angular range in the angle of longitudinal；Each collimating aperture group includes multiple collimations
Hole, the beam that multiple radiographic sources issue intersect at a public focus Q1 after each collimating aperture of collimating aperture group.Then radiation is controlled
Treatment system can drive multiple radiographic sources along the center axis rotation of radiotherapy apparatus by carrying source body 22, pass through sensitive organization or device
When official, radiographic source is subjected to pass source；Radiographic source is increased income when by normal tissue organ, so as to control in head tumor
During treatment, sensitive organizations' organs such as protection eyes are protected, additional injury is avoided.
Radiotherapy system provided by the present application, radiotherapy system further include driving device, penetrate source device for driving
11 movements.Exemplary, driving device can be driving ray source movement, and/or driving collimation body 23 moves.
Below specifically to be illustrated to load source provided by the present application body 22 shown in Fig. 6.
Exemplary, load source provided by the present application body 22, in longitudinal, multiple radioactive sources 111 divide for multiple groups, and adjacent two
The angular range of group radioactive source 111 is 2 ° -15 °.It is exemplary, in multiple groups radioactive source 111, two groups of radioactive sources 111 of arbitrary neighborhood
Angle it is all the same, alternatively, the angle of different two adjacent groups radioactive sources 111 is different, the application is not limited this, Fig. 6 institute
Show that only one kind illustrates.As shown in fig. 6, it is 5 groups that multiple radioactive sources 111, which divide, the angle of two groups of adjacent radioactive sources 111 is
For B (Fig. 6 is for two groups illustrated), which can be 2 ° -15 °, i.e. 2 °≤B≤15 °, and default included angle B can be
Any angle within the scope of 2 ° -15 °, it is exemplary, default angular range B can be 2 °, 2.5 °, 3,5 °, 6 °, 8 °, 10 °, 12 or
15°。
Load source provided by the present application body 22, multiple radioactive sources 111 are 20 ° -60 ° in latitudinal angular range.Example
, as shown in fig. 6, carry source body 22 is provided with multiple radioactive sources 111 in the preset range C of longitudinal.Exemplary, this is default
Angular range C can be 20 ° -60 °, i.e. 20 °≤C≤60 °, and default angular range C can be any folder within the scope of 20 ° -60 °
Angle, exemplary, default angular range C can be 20 °, 25 °, 30 °, 38 °, 40 °, 45 °, 50 °, 53 ° or 60 °.
It is exemplary, load source provided by the present application body 22, on latitude direction, the angle of two radioactive sources 111 of arbitrary neighborhood
Range is 1 ° -10 °.It is exemplary, in multiple groups radioactive source 111, the angle of two groups of radioactive sources 111 of arbitrary neighborhood on latitude direction
All the same, alternatively, the angle of two groups of radioactive sources 111 of arbitrary neighborhood is different on latitude direction, the application does not limit this
It is fixed, it is only that one kind illustrates shown in Fig. 6.It is exemplary, as shown in fig. 6, this two put by taking two of them radioactive source 111 as an example
It is D that source 111, which is penetrated, in latitudinal angle, and angle D can be 1 ° -10 °, i.e. 1 °≤D≤10 °, and default angle D can be
Any angle within the scope of 1 ° -10 °, exemplary, default angular range D can be 1 °, 2 °, 3,5 °, 6 °, 8 °, 9 ° or 10 °.
Load source shown in fig. 6 body 22, in longitudinal include with radioactive source 111 it is multiple rows of, positioned at the radioactive source 111 of same row
Longitude is identical, be also classified on latitude direction it is multiple rows of, positioned at 111 latitude of radioactive source of same row it is identical for.Further, it is
Example realizes noncoplanar irradiation, preferably protects normal tissue, load source provided by the present application body 22, radioactive source 111 is in latitude direction
On, position is different.I.e. each its latitude of radioactive source 111 is different.
Load source provided by the present application body 22 carries and is provided with multiple 111 holes of radioactive source on source body 22, the fixed peace of radioactive source 111
In 111 hole of radioactive source.It is provided with the source casket position to match with source box shape on source body 22 alternatively, carrying, source casket can fix peace
At the casket position of source, multiple radioactive sources 111 are installed on the casket of source.Exemplary, source casket position can be through-hole, be also possible to blind hole,
And multiple collimating apertures are provided on carrying source body 22, it is issued so that the beam that radioactive source 111 issues can pass through the collimating aperture.
The application for source casket and source casket position shape and structure without limitation.
Active casket interconnecting piece is also set up on load source body 22, for the fixed source casket being located at source casket position.Similarly, on the casket of source
It is provided with the interconnecting piece for connecting with source casket position.Exemplary, carrying source body 22 and source casket can be and be connected by screw to, can also be with
To be connected by a snap, the connection and fixed form for source casket and source casket position, the application without limitation, only for above-mentioned into
Row illustrates.
Load source provided by the present application body 22 is additionally provided with the interconnecting piece for taking source casket on the casket of source.It is exemplary, source casket interconnecting piece
It can be screw hole, it can be by being threadedly coupled with stem bar.Connect alternatively, source casket interconnecting piece and stem bar can be magnet absorption
It connects.Mode is taken for the connection and source casket of source casket and stem bar, the application without limitation, only shown for above-mentioned
Example explanation.
The material of load source provided by the present application body 22, the source source Xia Yuzai body 22 is different.Exemplary, source casket can be to be closed by tungsten
Gold is formed, and load source body 22 can be to be formed by cast iron.
Below specifically to be illustrated to collimation body 23 provided by the present application shown in Fig. 7.
Collimation body 23 provided by the present application, in longitudinal, the spacing of two neighboring collimating aperture is greater than radioactive source 111
Size.To can also only be misplaced smaller angle by collimate body 23 and radioactive source 111, so that between collimating aperture
Away from radioactive source 111 is shielded, avoid shielding using mask bit P1, because only needing the smaller angle that misplaces, so as to realize
High-speed switch source.
It is exemplary, collimation body 23 provided by the present application, in longitudinal, each collimating aperture group include it is multiple rows of, adjacent two
The angular range for arranging radioactive source 111 is 2 ° -15 °.Exemplary, in collimating aperture group, two rows of angles of arbitrary neighborhood are all the same, or
The angle of person, different adjacent two rows are different, and the application does not limit this, and are only that one kind illustrates shown in Fig. 7.Such as Fig. 7
Shown, multiple radioactive sources 111 divide for 4 rows, for the angle of adjacent row's collimating aperture is B (Figure 11 is by taking the two rows illustrated as an example),
The included angle B can be 2 ° -15 °, i.e. 2 °≤B≤15 °, and default included angle B can be any angle within the scope of 2 ° -15 °, example
, default angular range B can be 2 °, 2.5 °, 3,5 °, 6 °, 8 °, 10 °, 12 or 15 °.
Collimation body 23 provided by the present application, collimating aperture group are 20 ° -60 ° in latitudinal angular range.It is exemplary, such as
Shown in Fig. 7, which can be 20 ° -60 °, i.e. 20 °≤C≤60 °, and default angular range C can be 20 ° -60 °
Any angle in range, it is exemplary, default angular range C can be 20 °, 25 °, 30 °, 38 °, 40 °, 45 °, 50 °, 53 ° or
60°。
It is exemplary, collimation body 23 provided by the present application, on latitude direction, the angular range of two collimating apertures of arbitrary neighborhood
It is 1 ° -10 °.Exemplary, the angle of two collimating apertures of arbitrary neighborhood is all the same on latitude direction, alternatively, in latitude direction
The angle of two collimating apertures of upper arbitrary neighborhood is different, and the application does not limit this, and is only that one kind illustrates shown in Fig. 7.
It is exemplary, as shown in fig. 7, two collimating apertures are D in latitudinal angle, angle D by taking two of them collimating aperture as an example
Can be 1 ° -10 °, i.e. 1 °≤D≤10 °, default angle D can be any angle within the scope of 1 ° -10 °, and it is exemplary, it presets
Angular range D can be 1 °, 2 °, 3,5 °, 6 °, 8 °, 9 ° or 10 °.
Collimation body 23 shown in Fig. 7, in longitudinal include with the collimating aperture of collimating aperture group it is multiple rows of, positioned at putting for same row
It is identical to penetrate 111 longitude of source, be also classified on latitude direction it is multiple rows of, positioned at 111 latitude of radioactive source of same row it is identical for.Into
One step, for realize noncoplanar irradiation, preferably protect normal tissue, load source provided by the present application body 22, collimating aperture is in latitude
It spends on direction, position is different.I.e. each its latitude of collimating aperture is different.
Collimation body 23 provided by the present application, collimation body 23 further includes mask bit P1, for shielding penetrating for multiple radioactive sources 111
Beam.Pass source can be realized by the ray of the shielding radioactive source 111 of collimation body 23.The application is shielding mask bit P1
The specific location of body 21 without limitation, is illustrated so that mask bit P1 is opposite with each collimating aperture group position as an example in Fig. 7.
Exemplary, collimation body 23 provided by the present application, mask bit P1 is located at two of arbitrary neighborhood in multiple collimating aperture groups
Between collimating aperture group.It is exemplary, as shown in figure 14, be positioned at 2. number collimating aperture group and 3. between number collimating aperture group with mask bit P1
Example is illustrated.
In Figure 14 only for including a mask bit P1, collimation body 23 provided by the present application, collimation body 23 includes multiple
Mask bit P1.For example, it is also possible to which mask bit P1 is arranged between 1. number collimating aperture group and 2. number collimating aperture group.It is also possible to 3.
Number collimating aperture group and 4. mask bit P1 is set between number collimating aperture group.It is also possible between each two adjacent collimating aperture groups
Mask bit P1 is set.The application for multiple mask bit P1 number and distribution without limitation, example is only carried out for above-mentioned
Explanation.
Collimation body 23 provided by the present application is provided with shield 21 in mask bit P1, and the density of material of shield 21 is greater than
Collimate the density of material of body 23.Exemplary, shield 21 is fixedly connected with collimation body 23, and shield 21 can be by tungsten block or lead
Fast or its composition of alloy.Collimation body 23 can be to be made of cast iron.To which shield 21 can be realized to the more preferable of radioactive source 111
Shielding.The application for mask bit P1 position without limitation, it is exemplary as shown in figure 14, be also possible to be located at different collimations
Between the group of hole.
Collimation body 23 provided by the present application, collimation body 23 includes the interior collimation body 23 and outer collimation body 23 being fixedly connected, interior
The collimating aperture on collimating aperture and outer collimation body 23 on collimation body 23 is correspondingly arranged.That is collimation body 23 can be including bilayer, should
Interior collimation body 23 and outer collimation body 23 can be and be connected by screw to fixation.
Collimation body 23 provided by the present application, collimation body 23 include interior collimation body 23 and outer collimation body 23, interior 23 He of collimation body
Outer collimation body 23 can relative rotation.It is exemplary, over the course for the treatment of, if accident occurs, it can be realized fastly by interior collimation body 23
Fast Guan Yuan, then rotate outer collimation body 23 and mask bit P1 is made to be directed at radioactive source 111, it, further will be interior to shield radioactive source 111
The mask bit P1 alignment radioactive source 111 for collimating body 23 closes source to realize completely.
Collimation body 23 provided by the present application, the interior collimating aperture collimated on body 23 are taper hole, and/or, on outer collimation body 23
Collimating aperture is straight hole.It is exemplary, it can be for straight hole on interior collimation body 23, outer collimation body 23 is also straight hole；Alternatively, interior collimation
Body 23 is taper hole, and outer collimation body 23 is straight hole；Being also possible to interior collimation body 23 and outer collimation body 23 is taper hole.
A kind of radiotherapy system provided by the present application, penetrating source device 11 further includes switch body 24, and switch body 24, which is located at, to be carried
Between source body 22 and collimation body 23；At least two groups hole location corresponding with radioactive source 111 is provided in switch body 24, wherein one group of hole
Position is through-hole, remaining each group hole location includes through-hole and mask bit P1.It is exemplary, as shown in figure 15,5 are provided in switch body 24
Group hole location, that is, a-e group hole location, wherein a hole location is through-hole, only using a row is through-hole remaining each hole location as mask bit in b hole location
It is mask bit P1 that two rows, which are through-hole remaining each hole location, in P1, c hole location, and it is mask bit that three rows, which are through-hole remaining each hole location, in d hole location
It is mask bit P1 that four rows, which are through-hole remaining each hole location, in P1, e hole location.It should be noted that mask bit P1 can be in switch body
Hole is not provided on 24, being also possible to be provided in switch body 24 in hole but aperture can be filled with tungsten bar, to shield radioactive source
111。
Radiotherapy system provided by the present application, in longitudinal, the spacing of two neighboring collimating aperture is greater than radioactive source
111 size.To can also only be misplaced smaller angle by collimate body 23 and radioactive source 111 so that collimating aperture it
Between spacing shield radioactive source 111, avoid shielding using mask bit P1 because only needing the smaller angle that misplaces, so as to
To realize high-speed switch source.
Radiotherapy system provided by the present application, beam are X-ray beam, and radiotherapy system includes that one or more X is penetrated
Line acceleration system；One X-ray acceleration system issues multiple X-ray beams in beam angular range out；Alternatively, driving multiple X-rays
Acceleration system issues multiple X-ray beams in beam angular range out.X-ray acceleration system is to beat to generate on target body by electron beam
X-ray beam, the source point of radiographic source can be the intersection point for being illustrated in figure 5 the reverse extending line of X beam in the application.Then the application
Radiotherapy system can be including an X-ray acceleration system, which issues electron beam, the electronics
Beam is beaten on the target body of different target bodys or different location, issues multiple X-rays respectively.Alternatively, radiotherapy system, can be packet
Multiple X-ray acceleration systems are included, each X-ray acceleration system issues electron beam respectively, and it is more which plays the sending on target body
A X-ray.Related accelerator issues the specific structure of X-ray beam, and the application is not repeated them here here.
Over the course for the treatment of, it needs for the tumour of patient to be accurately located at public focus Q1, so that radioactive ray will swell
Oncocyte kills.But if patient moves in therapeutic process, and radioactive ray shift, and are also harmful to not only bad for treatment
Patient health is penetrated in the cavity of source device 11, then nothing in therapeutic process since existing radiotherapy apparatus its public focus Q1 is located at
Method is monitored to whether the head of patient moves.Radiotherapy system provided by the present application, public focus Q1, which is located at, penetrates source dress
It sets except 11 end face.It is exemplary, as shown in Fig. 9, Figure 12 and Figure 13, public focus Q1 be located at penetrate source device 11 end face it
Outside, then facilitate look at and monitor whether patient moves over the course for the treatment of.
Radiotherapy system provided by the present application, radiotherapy system further include imaging device 13, and imaging device 13 is along penetrating
The side for penetrating source device 11 is arranged in the central axis direction of source device 11, and public focus Q1 is located at the imaging region of imaging device 13
It is interior.The patient tumors being located in imaging region can be imaged by imaging device 13, confirm that patient is according to image
It is no to be subjected to displacement.The precision for carrying out displacement monitoring using image is high.
The radiotherapy system of the application, imaging device 13 be x-ray imaging device 13, CT imaging device 13, ultrasound at
As any combination of any one or its in device 13, DSA imaging device 13, MR imaging device 13, PET imaging device 13.
Such as imaging device 13 is x-ray imaging device 13, and it is exemplary, it may include that an X is penetrated as shown in Fig. 9, Figure 12 and Figure 13
Ray tube 132 and a plate detection.Or it is also possible to include that two X-ray bulbs 132 and two plates detect, this two
The beam crossover that X-ray bulb 132 issues.Certainly, imaging device 13 is also possible to two or more any different imaging devices
13 combination, such as imaging device 13 can be the combination of x-ray imaging device 13 and DSA imaging device 13.The application for
The specific set-up mode of imaging device 13 without limitation, is only illustrated for above-mentioned.
Exemplary, in the case where imaging device 13 includes imaging center point, public focus Q1 is overlapped with imaging center point.
For example, imaging device 13 includes two X-ray bulbs 132 and the corresponding beam for receiving each sending of X ray tube 132
Two X-ray plates 131, the beam crossover that two X-ray bulbs 132 issue is in public focus Q1.
Radiotherapy system provided by the present application, imaging device 13 are rotatable along 11 central axis of source device is penetrated.Such as Fig. 9, figure
Shown in 12 and Figure 13, if imaging device 13 includes an X-ray bulb 132 and an X ray plate 131, if patient is such as
Shown in Fig. 9, Figure 12 and Figure 13, shown in up and down direction issue movement, can not be judged according to image.Therefore, if imaging device 13
11 center axis rotation of source device is penetrated on edge, then the patient image under its available different angle, so as to true under each angle
Recognize whether patient issues movement.
Imaging device 13 rotates, and can be and installs rotating device by imaging device 13, such as can be and pass through gear teeth
Circle is also possible to through slip ring driving etc..The application for imaging device 13 driving method without limitation.
Radiotherapy system provided by the present application, imaging device 13, which is fixedly connected on, to be penetrated in source device 11.It is exemplary, imaging
Device 13 is fixedly connected with either one or two of source body 22 or collimation body 23 is carried.For shown in Fig. 9, ray tube 132 and X-ray
Plate 131 can be to be fixedly connected with load source body 22, thus, it carries the rotation of source body 22 and imaging device 13 is driven to rotate, avoid independent
The rotation drive device of imaging is set.Certainly, imaging device 13 is also possible to be fixedly connected on switch body 24 or collimation body 23,
The application does not limit this.
A kind of radiotherapy system provided by the present application, radiotherapy apparatus further include screening arrangement 14, and screening arrangement 14 is located at
The side of source device 11 is penetrated, the beam that radioactive source 111 issues is shielded after passing through public focus Q1 by screening arrangement 14.It is exemplary,
As shown in Fig. 9, Figure 12 and Figure 13, screening arrangement 14 is located at the side for penetrating the public focus Q1 of source device 11, and radioactive source 111 is sent out
Beam out is shielded after passing through public focus Q1 by screening arrangement 14, to avoid radiation extra in therapeutic room.It is exemplary, shielding
Device 14 is ring bodies, then radioactive source 111 is received by screening arrangement 14 around one week ray of center axis rotation.Alternatively, shielding
Device 14 is shielding slab, can be along 11 center axis rotation of source device is penetrated, to follow 111 Rotation of receiver of radioactive source to pass through public coke
Ray after point Q1.It should be noted that therapeutic bed 12 carries patient's movement, then channel is offered on screening arrangement 14, with side
Just therapeutic bed 12 is mobile.
Exemplary, the position of screening arrangement 14 and imaging device 13 is arranged without limitation in the application, such as imaging device
13 can be independent fixed setting, be also possible to be arranged inside screening arrangement 14.
Radiotherapy system provided by the present application further includes shield door 15, and shield door 15 is openable or is closed radiotherapy
The cavity of system.For shown in Fig. 9, shield door 15 be can be outside the cavity for being arranged in and penetrating source device 11, openable or closure
The cavity for penetrating source device 11 can be folding up and down, be also possible to opening and closing left and right.Thus within the non-treatment time, Ke Yitong
It crosses shield door 15 and shields beam.Certainly, shield door 15 is also possible to be arranged between imaging device 13 and screening arrangement 14, or
The outside of shield door 15 is arranged in person's shield door 15.The application for shield door 15 specific setting position without limitation, only with
It is illustrated for shown in Fig. 9.
Radiotherapy system provided by the present application, as shown in figure 8, being additionally provided between collimation body 23 and load source body 22 anti-
Sinking component.Further, penetrating source device 11 further includes the shield 21 outside load source body 22, in shield 21 and carries source
Anti-sinking component is additionally provided between body 22.Exemplary, anti-sinking component can be bearing, to avoid collimation body 23 and load source
In the case that body 22 drives rotation at one end, the other end occurs sagging.
A kind of control driving method of radiotherapy system provided by the present application, radiotherapy system include multiple rays
Source, the source point of multiple radiographic sources is within the scope of the predetermined angle in longitudinal.
It should be noted that radiographic source can be X-ray acceleration system in the application, then beam is X-ray beam；Alternatively,
It is gamma ray radiator that radiographic source, which can be radiographic source, then beam is beam,gamma-ray.If beam is X beam, principle is electron beam
It beats on target body, generates X-ray beam, then the source point of radiographic source can be 14 figures such as and show the friendship of the reverse extending line of X beam
Point.If beam is beam,gamma-ray, the source point of radiographic source is that can be isotope radioactive source, such as cobalt -60.
As shown in figure 16, control driving method includes:
Step S1: it obtains at least one and goes out beam angular range.
Step S2: driving radiotherapy system issues beam in beam angular range out and intersects at a public focus.
It should be noted that being controlled since preset zero-bit is generally arranged in the driving device in radiotherapy system in radiation
With the zero-bit to refer to during treatment, confirmation driving angle range is driven.In the application, beam angular range, which can be, out is controlled
Doctor is treated according to the tumor image of patient, include in the corresponding treatment plan of formulation needs radiotherapy system to issue beam
It is irradiated the angular range for the treatment of, and the angular range is the angular range of driving device driving.It is exemplary, such as Figure 17 institute
Show, treating physician is according to the tumor image of patient, and in the works, radiotherapy system is shone the corresponding treatment of formulation in the section B1
Treatment is penetrated, and (region A1 is the irradiation area for including two eyes, and ray damage is avoided to regard without irradiation treatment in the section A1
Nerve), then the driving angle range that beam angular range drives radiographic source to be irradiated in the section B1 out for driving device, shielding angle
Degree range is that driving device drives radiographic source to avoid the driving angle range being irradiated in the section A1.Only in B1 when radiotherapy
Rotary irradiation within the scope of the driving angle that section is irradiated, so as to avoid irradiation eyes from injuring sensitive organization.Show
Example, driving angle range is the rotation angle of motor.And in the application, if radiotherapy system rotation drives more than 360 °
Angular range is also above 360 °.Alternatively, if rotating cycle, and different circles more than 360 °, are demarcated in radiotherapy system rotation
The corresponding driving angle range of number.
Certainly, 1 region of corresponding A is also possible to when radiotherapy and the region B1 carries out rotary irradiation, then beam angle degree model out
The driving angle range to be irradiated in the section A1 and the region B1 is enclosed, such as can be 360 °.At this point it is possible to pass through reduction
Irradiation time reduces the received dosage of sensitive organization's such as optic nerve, to protect sensitive organization's organ.
A kind of control driving method provided by the present application, radiotherapy system include multiple radiographic sources, multiple radiographic sources
Source point is within the scope of the predetermined angle in longitudinal, control driving method include: at least one is obtained to go out beam angular range, and
Driving radiotherapy system issues beam in beam angular range out and intersects at a public focus, to treat in head tumor
Cheng Zhong protects sensitive organizations' organs such as protection eyes, avoids additional injury.
A kind of control driving method provided by the present application, as shown in figure 18, further includes:
Step S3: at least one degree of protection range is obtained.At least one degree of protection range is less than 360 °.
As shown in figure 19, radiotherapy system is irradiated treatment in the section B1 and B2, and the section A1 and A2 without
Irradiation treatment (A1 and A2 correspond to eye areas, avoid ray damage optic nerve), then beam angular range is driving device driving out
The driving angle range that radiographic source is irradiated in the section B1 and B2, degree of protection range are that driving device drives radiographic source in A1
The driving angle range being irradiated is avoided with the section A2.
Step S4: driving radiotherapy system, so that the beam of the radiographic source within the scope of degree of protection does not issue.
A kind of control driving method provided by the present application, radiotherapy system include multiple radiographic sources, multiple radiographic sources
Source point is within the scope of the predetermined angle in longitudinal, control driving method include: obtain at least one go out beam angular range with
And at least one degree of protection range, and drive radiotherapy system to issue beam in beam angular range out and intersect at a public affairs
Confocal, the beam of the radiographic source within the scope of degree of protection does not issue.So as in head tumor therapeutic process, to guarantor
Eyeshield Jing Deng sensitive organization organ is protected, and additional injury is avoided.
Exemplary, at least one of which goes out beam angular range and one of degree of protection range is adjacent.Such as Figure 19 institute
Show, the section B1 and B2 is irradiated treatment, and in the section A1 and A2 without irradiation treatment, due to the section B1 and the section A1 phase
Neighbour, then the degree of protection range for going out 1 section of beam angular range and corresponding A for corresponding to the section B1 are adjacent.
Control driving method provided by the present application obtains multiple beam angular ranges out, and at least two go out in beam angular range
The speed of radiotherapy system is different.Exemplary, referring to Fig.1 shown in 9, the section B1 and B2 is irradiated treatment, then obtains correspondence
The beam angular range out for going out beam angular range and the corresponding section B2 in the section B1, and in radiotherapy system in the corresponding section B1
The speed of beam angular range is V1 out, and the speed for going out beam angular range in the corresponding section B2 is V2, V1 ≠ V2, so as to logical
Speed is crossed to adjust the irradiation time at different location and then adjust the dosage of focus.
Exemplary, as shown in figure 17, when radiotherapy, 1 region of corresponding A and the region B1 carry out rotary irradiation, then beam out
Angular range is the driving angle range being irradiated in the section A1 and the region B1.It can be, go out beam in the corresponding section B1
The speed of angular range is V1, and the speed for going out beam angular range in 1 section of corresponding A is V2, V1 < V2.I.e. so that in the section A1
When speed be greater than the section B1 speed, thus reduce in the section A1 the received dosage of sensitive organization, to protect sensitive organization
Organ.
It should be noted that in the application driving angle range be motor rotation angle, then driving angle range also above
360°.Such as motor is more than 360 °, then demarcates rotating cycle, and the corresponding driving angle range of different circle numbers.At least two
The speed of beam angular range internal radiotherapy system is different out, can not correspond to its driving speed of same irradiation section when different circle numbers
Degree is different.For example, radiotherapy treatment planning treatment time is 2min, motor driven rotation, which is turned around, needs 1min, as shown in figure 19,
Beam angle degree range then is irised out to be V1 in the driving speed that the region B1 is irradiated first, and irising out beam angular range second is
It is V2, V1 ≠ V2 in the driving speed that the region B1 is irradiated.
Control driving method provided by the present application, exemplary, as shown above, different two of speed go out beam angular range
It is adjacent.
Control driving method provided by the present application, driving radiotherapy system move back and forth in beam angular range out.Show
Example, if only obtaining one goes out beam angular range, radiotherapy system can be moved back and forth changing in beam angular range, with
Increase the received dosage of tumour.Certainly, if obtain multiple beam angular ranges out, radiotherapy system can also be by changing
It is moved back and forth in beam angular range, the received dosage of Lai Zengjia tumour.
Control driving method provided by the present application, beam are beam,gamma-ray or X-ray beam.Below to two kinds of different beams
It is illustrated respectively.
Control driving method provided by the present application, radiographic source are gamma ray radiator, and radiotherapy system includes load source body and standard
Stretched carries and is provided with multiple gamma ray radiators on the body of source, and multiple gamma ray radiators are distributed within the scope of the predetermined angle in longitudinal,
Multiple collimating aperture groups are provided on collimation body, each collimating aperture group is distributed within the scope of the predetermined angle in longitudinal.Put
Penetrating treatment system can be the radiotherapy system as shown in Fig. 8, Fig. 9, Figure 12 and Figure 13.Then such as step in Figure 16 and Figure 18
S2 specifically: driving radiotherapy system, so that the beam that multiple gamma ray radiators issue is sent out after passing through the collimating aperture on collimation body
Out and intersect at a public focus.It is exemplary, it can be and drive Dynamic Loading body and collimation body rotation, so that carrying the radiation on the body of source
Source issues after passing through the collimating aperture on collimation body and intersects at a public focus.
Control driving method provided by the present application, radiographic source are gamma ray radiator, and radiotherapy system includes load source body and standard
Stretched carries and is provided with multiple gamma ray radiators on the body of source, and multiple gamma ray radiators are distributed within the scope of the predetermined angle in longitudinal,
Multiple collimating aperture groups are provided on collimation body, each collimating aperture group is distributed within the scope of the predetermined angle in longitudinal.Ibid
Described, i.e., radiotherapy system can be the radiotherapy system as shown in Fig. 8, Fig. 9, Figure 12 and Figure 13.Then as walked in Figure 18
Rapid S4 specifically: driving radiotherapy system, so that the beam that multiple gamma ray radiators issue is collimated body shielding.It is exemplary, it can
To be to drive Dynamic Loading body and collimation body dislocation, so that carrying the gap screen that the radioactive source on the body of source is collimated between the collimating aperture on body
It covers, since dislocation Shi Zaiyuan body and collimation body only need to misplace to rotate smaller angle, high-speed switch source may be implemented；Or
It is also possible to drive Dynamic Loading body and collimates body dislocation, so that carries the shielding bit mask that the radioactive source on the body of source is collimated on body.
Control driving method provided by the present application, radiotherapy system further include Guan Yuanti, i.e., the pass source body is for switching
Source.Then such as step S4 in Figure 18 specifically: driving radiotherapy system, so that the beam that multiple gamma ray radiators issue is by Guan Yuanti
Shielding.Further to close the setting of source body on collimation body, i.e. Guan Yuanti, which can be, is located at collimation body shielding bit positions.
Control driving method provided by the present application, radiotherapy system further include switch body, switch body be located at load source body and
It collimates between body, at least two groups hole location corresponding with gamma ray radiator is provided in switch body, wherein one group of hole location is through-hole,
Remaining each group hole location includes through-hole position and mask bit.For shown in Figure 16, as shown in figure 20, drive control method is also wrapped
It includes:
Step S5: driving switch body, so that the part beam that multiple gamma ray radiators issue is switched on and off the shielding bit mask of body.
Certainly, drive control method as shown in figure 18 is also possible to include step S5, and Figure 20 only to be shown in Figure 16
Example.
Switch body is as shown in figure 15, driving switch body, so that the part beam that multiple gamma ray radiators issue is switched on and off body
Shield bit mask, it can by switch body mask bit come the beam of shielded segment radioactive source, to realize the mesh of regulating dosage
's.
Control driving method provided by the present application, in longitudinal, two neighboring collimating aperture in same collimating aperture group
Spacing is greater than the size of gamma ray radiator.Then such as step S4 in Figure 18 specifically: driving radiotherapy system, so that multiple γ are radiated
Source and collimating aperture misplace, and the beam that part of gamma ray radiator issues is collimated the fringe region shielding of hole group, remaining γ radiation
The beam that source issues is collimated the pitch area shielding between hole.It is exemplary, it can be and drive Dynamic Loading body and collimation body dislocation, make
The gap shielding that the radioactive source on the body of load source is collimated between the collimating aperture on body is obtained, due to dislocation Shi Zaiyuan body and collimates body only
It needs to misplace and rotates smaller angle, therefore high-speed switch source may be implemented.
Control driving method provided by the present application, beam are X-ray beam, and radiotherapy system includes that one or more X is penetrated
Line acceleration system.
When radiotherapy system includes an X-ray acceleration system, then the step S2 as shown in Figure 16 or Figure 18 is specific
Are as follows: one X-ray acceleration system of driving issues multiple X-ray beams in beam angular range out.
Further, step S4 as shown in figure 18 specifically: close all or part of X of an X-ray acceleration system
Beam.It is exemplary, close X-ray acceleration system can be by close microwave device or close accelerating tube come close all or
Partial x-ray beam.
Alternatively, then the step S2 as shown in Figure 16 or Figure 18 has when radiotherapy system includes multiple X-ray acceleration systems
Body are as follows: multiple X-ray acceleration systems is driven to issue multiple X-ray beams in beam angular range out.
Further, step S4 as shown in figure 18 specifically: close all or part in multiple X-ray acceleration systems
X-ray acceleration system.Exemplary, closing multiple X-ray acceleration systems can be by closing the micro- of multiple X-ray acceleration systems
Wave apparatus closes accelerating tube to close all or part of X-ray beam.
Exemplary, the radiotherapy system as shown in Fig. 9, Figure 12 and Figure 13, public focus is located at the end face for penetrating source device
Except.Radiotherapy system further includes imaging device, and public focus is located in the imaging region of imaging device.As shown in figure 21,
Drive control method further include:
Step S6: imaging device is controlled to obtain the image of patient.
Step S7: according to the image of patient, confirm beam angular range.
It should be noted that going out in step S1, before beam angular range can be radiotherapy, treating physician is according to patient
Image confirmation go out beam angular range, in therapeutic process, can be confirmed according to the image of acquisition or be adjusted should go out beam angle degree model
It encloses.
Exemplary, the radiotherapy system as shown in Fig. 9, Figure 12 and Figure 13, radiotherapy system further includes imaging device,
Public focus is located in the imaging region of imaging device；As shown in figure 22, drive control method further include:
Step S8: imaging device is controlled to obtain the image of patient.
Step S9: according to the image of patient, confirm degree of protection range.
Similarly, before the degree of protection range in step S3 can be radiotherapy, treating physician is true according to the image of patient
The degree of protection range recognized in therapeutic process, can confirm according to the image of acquisition or adjust the degree of protection range.
It should be noted that control driving method provided by the present application, the application does not do the sequence of above each step
It limits, the application is only illustrated for diagrammatically shown.
Hereinafter, be a kind of control driving device of the control driving method of corresponding radiotherapy system provided by the present application,
Part description in relation to the driving device can refer to control driving method, not repeat them here following.
A kind of control driving device of radiotherapy system provided by the present application, radiotherapy system include multiple rays
Source, the source point of multiple radiographic sources is within the scope of the predetermined angle in longitudinal；Controlling driving device includes processor, processor
Go out beam angular range for obtaining at least one；And driving radiotherapy system issues beam and phase in beam angular range out
Meet at a public focus.
Control driving device provided by the present application, processor are also used to obtain at least one degree of protection range；And it drives
Dynamic radiotherapy system, so that the beam of the radiographic source within the scope of degree of protection does not issue.
Control driving device provided by the present application, processor are also used to obtain multiple beam angular ranges out, and at least two go out
The speed of beam angular range internal radiotherapy system is different.
Control driving device provided by the present application, processor are also used to drive radiotherapy system in beam angular range out
It moves back and forth.
Control driving device provided by the present application, radiographic source are gamma ray radiator, and radiotherapy system includes load source body and standard
Stretched carries and is provided with multiple gamma ray radiators on the body of source, and multiple gamma ray radiators are distributed within the scope of the predetermined angle in longitudinal,
Multiple collimating aperture groups are provided on collimation body, each collimating aperture group is distributed within the scope of the predetermined angle in longitudinal；Processing
Device is for driving radiotherapy system, so that the beam that multiple gamma ray radiators issue issues after passing through the collimating aperture on collimation body.
Control driving device provided by the present application, radiographic source are gamma ray radiator, and radiotherapy system includes load source body and standard
Stretched carries and is provided with multiple gamma ray radiators on the body of source, and multiple gamma ray radiators are distributed within the scope of the predetermined angle in longitudinal,
Multiple collimating aperture groups are provided on collimation body, each collimating aperture group is distributed within the scope of the predetermined angle in longitudinal；Processing
Device is for driving radiotherapy system, so that the beam that multiple gamma ray radiators issue is collimated body shielding.
Control driving device provided by the present application, radiotherapy system further include Guan Yuanti, and processor is also used to drive and put
Treatment system is penetrated, so that the beam that multiple gamma ray radiators issue is closed the shielding of source body.
Control driving device provided by the present application, radiotherapy system further include switch body, switch body be located at load source body and
It collimates between body, at least two groups hole location corresponding with gamma ray radiator is provided in switch body, wherein one group of hole location is through-hole,
Remaining each group hole location includes through-hole position and mask bit；Processor is also used to driving switch body, so that the portion that multiple gamma ray radiators issue
Point beam is switched on and off the shielding bit mask of body.
Control driving device provided by the present application, in longitudinal, two neighboring collimating aperture in same collimating aperture group
Spacing is greater than the size of gamma ray radiator；Processor is also used to drive radiotherapy system, so that multiple gamma ray radiators and collimating aperture
Dislocation, the beam that part of gamma ray radiator issues are collimated the fringe region shielding of hole group, and what remaining gamma ray radiator issued penetrates
Beam is collimated the pitch area shielding between hole.
Control driving device provided by the present application, beam are X-ray beam, and radiotherapy system includes that one or more X is penetrated
Line acceleration system；Processor is for driving an X-ray acceleration system to issue multiple X-ray beams in beam angular range out；Alternatively,
Multiple X-ray acceleration systems are driven to issue multiple X beams in beam angular range out.
Control driving device provided by the present application, beam are X-ray beam, and radiotherapy system includes that one or more X is penetrated
Line acceleration system；Processor is used to close all or part of X-ray beam of an X-ray acceleration system；Alternatively, closing multiple X
All or part of X-ray acceleration system in ray acceleration system.
Control driving device provided by the present application, radiotherapy system further include imaging device, and public focus is located at imaging
In the imaging region of device；Processor is also used to control imaging device to obtain the image of patient；And the figure according to patient
Picture confirms beam angular range.
Control driving device provided by the present application, radiotherapy system further include imaging device, and public focus is located at imaging
In the imaging region of device；Processor is also used to control imaging device to obtain the image of patient；And the figure according to patient
Picture confirms degree of protection range.
The foregoing is merely the alternative embodiments of the application, not to limit the application, it is all in spirit herein and
Within principle, any modification, equivalent replacement, improvement and so on be should be included within the scope of protection of this application.
Claims (11)
1. a kind of radiotherapy system, which is characterized in that the radiotherapy system includes penetrating source device and therapeutic bed, described to penetrate
Source device includes multiple radiographic sources and collimation body, predetermined angle range of the source point of the multiple radiographic source in longitudinal
It is interior, be provided with multiple collimating aperture groups on the collimation body, each collimating aperture group longitudinal angle in default angle
In range；
Each collimating aperture group includes multiple collimating apertures, and the beam that the multiple radiographic source issues is by the collimating aperture group
A public focus is intersected at after each collimating aperture.
2. radiotherapy system according to claim 1, which is characterized in that the default angular range is 5 ° -60 °.
3. radiotherapy system according to claim 1, which is characterized in that the radiotherapy system further includes driving dress
It sets, penetrates the movement of at least one of source device and the collimation body for driving.
4. radiotherapy system according to claim 1, which is characterized in that the beam is beam,gamma-ray or X-ray beam.
5. radiotherapy system according to claim 1, which is characterized in that the radiographic source is gamma ray radiator, described to penetrate
Source device includes load source body, and multiple gamma ray radiators are provided on the body of the load source, and the multiple gamma ray radiator is distributed in longitude side
Within the scope of upward predetermined angle.
6. radiotherapy system according to claim 5, which is characterized in that the collimation body further includes mask bit, is used for
Shield the beam of the multiple radioactive source.
7. radiotherapy system according to claim 5, which is characterized in that the source device of penetrating further includes switch body, institute
Switch body is stated to be located between load source body and collimation body；
At least two groups hole location corresponding with the radioactive source is provided in the switch body, wherein one group of hole location is through-hole,
Remaining each group hole location includes through-hole and mask bit.
8. radiotherapy system according to claim 5, which is characterized in that in longitudinal, in same collimating aperture group
The spacing of two neighboring collimating aperture is greater than the size of radioactive source.
9. radiotherapy system according to claim 1, which is characterized in that the beam is X-ray beam, and the radiation is controlled
Treatment system includes one or more X-ray acceleration systems；One X-ray acceleration system issues multiple X in beam angular range out and penetrates
Harness；Alternatively, multiple X-ray acceleration systems is driven to issue multiple X-ray beams in beam angular range out.
10. radiotherapy system according to claim 1, which is characterized in that the public focus is located at the source of penetrating and fills
Except the end face set.
11. radiotherapy system according to claim 1, which is characterized in that the radiotherapy system further includes imaging
Device, the side for penetrating source device is arranged in the central axis direction that the imaging device penetrates source device described in, described public
Focus is located in the imaging region of the imaging device.
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| CN109011219B (en) * | 2018-08-24 | 2023-11-17 | 西安大医集团股份有限公司 | Radiation therapy system and control driving method thereof |
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Address after: 710018 Xi'an Economic and Technological Development Zone, Shaanxi Province, No.66, Fengcheng 12 Road, No.28 Building, International City Business Center, Unit 1, Floor 3, Room 10301 Patentee after: Xi'an Dayi Group Co., Ltd Address before: 710018 Xi'an Economic and Technological Development Zone, Shaanxi Province, No.66, Fengcheng 12 Road, No.28 Building, International City Business Center, Unit 1, Floor 3, Room 10301 Patentee before: Xi'an great medicine group Co., Ltd. |