CN205924726U - Radiation therapy system - Google Patents
Radiation therapy system Download PDFInfo
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- CN205924726U CN205924726U CN201620581538.0U CN201620581538U CN205924726U CN 205924726 U CN205924726 U CN 205924726U CN 201620581538 U CN201620581538 U CN 201620581538U CN 205924726 U CN205924726 U CN 205924726U
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- ray
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- radiotherapy
- radiographic source
- arc guide
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Abstract
The utility model provides a radiation therapy system, include: gamma ray source, support, two X ray bulbs, two detectors, treatment bed still include the roof, and the roof links firmly and be equipped with circular guide slot A with the ceiling, the upper portion of support is passed through the slider and is connected in circular guide slot A and can rotate along circular guide slot A, the support is equipped with an arc guide slot A that open side down, still include a telescoping device, in the upper end connection arc guide slot A of telescoping device, the lower extreme links firmly with the gamma ray source, X ray bulb and support link firmly and can rotate thereupon, and central points such as two X ray bulbs and radiation therapy are in same vertical plane, the detector is located the below of treatment bed, can the synchronous rotation on the horizontal plane along with the rotation of X ray bulb. Radiation therapy system simple structure, control convenient, non - coplane radiotherapy scope is big, the ray decay is little, the ray that sends of image guiding device does not receive and blockking simultaneously.
Description
Technical field
This utility model is related to a kind of radiotherapy medical equipment, more particularly, to a kind of radiotherapy system.
Background technology
Latest data shows, cancer is already known to endanger a big killer of human health.Radiotherapy（Hereinafter referred to as put
Treat）As a kind of important means for the treatment of cancer, obtain development continuously and healthily, also occur in that various radiotherapies therewith
Equipment.But, mostly there is complex structure in current radiotherapy apparatus, the defect such as the scope of non-co-planar radiotherapy is little.
The Cyberknife system that Accurary company of the U.S. develops is a much progress of radiotherapy apparatus, and this system utilizes
Two sets of X-ray bulbs and detector form the position that image guide obtains target area, to enter to target area in Patients During Radiotherapy
Row is followed the trail of.Electron linear accelerator install on a robotic arm, by mechanical hand-motion linear accelerator multi-faceted around patient,
With multi-angle accurate radiotherapy is carried out to target area.The deficiency of Cyberknife system is：1.X ray tube is fixed on ceiling
On, in Patients During Radiotherapy, the ray that mechanical hand and accelerator can send to image guide produces and stops, and then affect imaging and
Follow the trail of；2. this system cannot carry out to target area rotating arcing radiotherapy, and the efficiency of radiotherapy 3. this system that have much room for improvement use machinery
Handss because mechanical hand is the series connection of multistage joint, in cantilever design, current mechanical hand at most can only capture 200kg about X ripple
Section electron linear accelerator, helpless to the C-band electron linear accelerator of the 400kg that weighs, and C-band electronic line of sight accelerates
Utensil has good stability, accelerating tube easy processing, has obtained rapid development the advantages of cost is relatively low.
The Chinese granted patent of Application No. 201520685366.7 discloses a kind of non-co-planar radiotherapy system, and this is
System includes two sets and intersects the X ray image system being arranged on c-type turning arm both sides, and this Image Location System is in radiotherapy with C
Type turning arm rotates, and target area is tracked, and radiographic source and image system rotate to realize non-co-planar radiotherapy around revolution foundation.
This mode solves the problems, such as that the X-ray that image guide sends is stopped, however, this is this is to sacrifice non-co-planar to put
The ray incidence range treated is cost, because the track in image system and radiographic source rotation for this structure essentially forms
One face of cylinder, if the angle of revolution is excessive, can have that image system and radiographic source are interfered with therapeutic bed.
The Chinese granted patent of Application No. 95102563.5 discloses a kind of stereo directional radiotherapy apparatus, this device bag
Include treatment head and motion frame, motion frame includes the vertical telescopic mechanism being linked in sequence, vertical slew gear, move horizontally and lead
To mechanism and horizontal fixed guide mechanism composition, this device has structure simply, and the advantages of easy to control, shortcoming is：1. no
Method carries out to target area rotating arcing radiotherapy, and radiotherapy is inefficient；2. Duo Ge mechanism is linked in sequence, and the error of mechanism can be made to produce
Accumulation is so that whole device machine error is larger；3. this radiotheraphy device there is no image guide it is impossible to real IGRT (image draws
Lead radiotherapy) so that radiotherapy precision is not high.
Additionally, according to nuclear physics relevant knowledge, ray after radiographic source injection, aerial intensity and distance
Square it is inversely proportional to, in order that radiation attenuation is little, radiographic source should be positioned as close to focus.But current radiotherapy equipment
The distance of radiographic source to focus be all changeless, after this can make ray reach focus, intensity reduces, and meanwhile, ray leaves
Can collide with air and scatter, thus causing the injury of normal tissue after radiographic source.
Utility model content
The purpose of this utility model is to overcome the above-mentioned problems in the prior art, providing a kind of radiotherapy system
System, this system structure is simple, easy to control, and non-co-planar radiotherapy scope is big, and ray attenuation is little, and image guide sends simultaneously
Ray is not stopped.
This utility model employs the following technical solutions to realize.
A kind of radiotherapy system, including radiographic source, is used for fixing radiogenic support, two X-ray bulbs and X and penetrates
Ray tube corresponding two detectors, therapeutic bed, also include top board, and described top board and ceiling are connected and are provided with circular guide
A；The top of described support is connected in described circular guide A by slide block and can rotate along circular guide A；Described support
It is provided with an arc guide barrel A that Open Side Down；Also include a retractor device, the upper end of described retractor device connects described arc
In guide groove A, lower end is connected with radiographic source, and described retractor device drives radiographic source both can rotate along arc track A, may be used again
With moving radially along arc track A；Described X-ray bulb and support be connected and can concomitant rotation, two X-ray bulbs and
Radiotherapy isocenter point is in same perpendicular；Described detector is located at the lower section of therapeutic bed, can be with X-ray bulb
Rotation and in the horizontal plane synchronous axial system so that X-ray bulb to send ray vertical with the receiving plane of corresponding detector all the time.
In such scheme, described arc guide barrel A is located at the middle part of support, and it is in water that the bottom of described support is provided with two openings
Flat relative arc guide barrel B；The center of described arc guide barrel A and arc guide barrel B is respectively positioned on radiotherapy isocenter point.
In such scheme, also include a support ring, described support ring is entangled radiographic source and contacted with radiographic source all the time, lead to
Cross slide block to be connected in arc guide barrel B and can be along arc guide barrel B and described retractor device synchronous axial system.
In such scheme, also include a base plate, above described base plate, be provided with circular guide B, described detector passes through to slide
Block is connected in described circular guide and can rotate along circular guide, and described therapeutic bed is located above base plate.
In such scheme, described support is made up of rack body and two support cantilever arms, two support cantilever arms with regard to
Arc guide barrel place plane symmetry, X-ray bulb is arranged on support cantilever arm.
In such scheme, described therapeutic bed is sextuple therapeutic bed, and is fabricated by by full carbon fiber.
In such scheme, described radiographic source is C-band electron linear accelerator.
The beneficial effects of the utility model are as follows.
（1）Rotated along arc track around vertical axis rotation and radiographic source with support using radiographic source, realize penetrating
Line source arbitrary orientation, unspecified angle can send ray to target area and carry out non-co-planar rotation arcing radiotherapy above human body, carry
High burnt skin ratio, reduces the infringement to human body for the ray, the efficiency high of radiotherapy simultaneously.
（2）It is only that two-stage rotates, structure is simpler, reduces the machine error of accumulation, also improves load capacity simultaneously,
Allow to drive the electron linear accelerator of the C-band of the 400kg that weighs.
（3）For image guidance system, send X-ray from arc guide barrel using two X-ray bulbs on top board
Target area is incided in both sides, simultaneously in holder pivots, X-ray bulb and detector therewith synchronous axial system so that X-ray will not be subject to
To stopping, improve the quality of image guide.
（4）Radiographic source is designed to scalable form, realizes " roll adjustment radiotherapy " to focus, reduces the decay of ray, with
When decrease ray and air and collide and produce the injury to tissue for the scattering.
Brief description
Fig. 1 is the structural representation of an embodiment of the present utility model.
Fig. 2 is the sectional view when arc track A is vertical with therapeutic bed axis for the embodiment of the present utility model.
Fig. 3 is the schematic diagram of the support of an embodiment of the present utility model.
Fig. 4 is that the radiographic source of an embodiment of the present utility model is ined succession the schematic diagram of support ring and retractor device.
Fig. 5 is the schematic diagram of the top board of an embodiment of the present utility model.
In figure：1 radiographic source；2 supports；3X ray tube；4 detectors；5 therapeutic bed；6 top boards；7 arc guide barrel A；8 stretch
Device；9 isocenter points；10 base plates；11 circular guide B；12 arc guide barrel B；13 circular guide A；14 supporting members；15 support masters
Body；16 support cantilever arms.
Specific embodiment
With reference to the accompanying drawings and detailed description this utility model is described in further detail.
As depicted in figs. 1 and 2, a kind of radiotherapy system, including radiographic source 1, the support 2, two for fixing radiographic source 1
Platform X-ray bulb 3 two detectors 4 corresponding with X-ray bulb 3, therapeutic bed 5, also include top board 6, top board 6 and ceiling
It is connected.Support 2 is provided with an arc guide barrel A7 that Open Side Down.Also include a retractor device 8, the upper end of retractor device 8 is even
Connect in arc guide barrel A7, lower end is connected with radiographic source 1, retractor device 8 drives radiographic source 1 both can turn along arc track A7
Dynamic, again can moving radially along arc track A7, retractor device here using hydraulic cylinder naturally it is also possible to adopt ball wire
Thick stick or pneumatic cylinder etc., according to the fat or thin difference of different patients, in the case of ensureing patient not to radiotherapy system interference, as far as possible
Shorten the distance between patient and radiographic source 1 to reduce the decay of ray.X-ray bulb 3 is connected with support 2 and can turn therewith
Move, in same perpendicular, two X-ray bulbs 3 are located at and prop up here for two X-ray bulbs 3 and radiotherapy isocenter point 9
The top of frame 2, and be connected in circular guide A13 by slide block, so in order to mitigate two X-ray bulbs 3 to whole support 2
Load and in order to attractive in appearance, certainly, two X-ray bulbs 3 can also be connected in arc track A7 or the arc track of support 2
The both sides of B12.Detector 4 is located at the lower section of therapeutic bed 5, is connected in circular guide 11 by slide block and can lead along circle
Groove 11 rotate so that X-ray bulb 3 to send ray vertical with the receiving plane of corresponding detector 4 all the time, because ray and receiving plane
Detection efficient can be brought during out of plumb low, image quality difference the problems such as.Therapeutic bed 5 is sextuple therapeutic bed, before radiotherapy or put
Can be according to image guide during treatment（It is made up of X-ray bulb 3 and detector 4）After target location is detected, will control
Treat bed 5 and move to appropriate position, and therapeutic bed 5 is fabricated by by full carbon fiber, the X so sending in X-ray bulb 3 penetrates
Line penetrates absorbed amount during therapeutic bed 5 and seldom, improves image quality.Radiographic source 1 selects stability high, lower-cost C ripple
Section electron linear accelerator.The top of support 2 is connected in circular guide A13 by slide block and can be along circular guide A13
Rotate；Arc guide barrel A7 is located at the middle part of support 2, and the bottom of support 2 is provided with the arc guide barrel B that two openings are in level of relative；
The center of arc guide barrel A and arc guide barrel B is respectively positioned on radiotherapy isocenter point 9.
As shown in figure 3, support 2 is made up of rack body 15 and two support cantilever arms 16, two support cantilever arms 16 close
In arc guide barrel place plane symmetry, X-ray bulb（This is not shown）It is arranged on support cantilever arm 16.Under support 2
The arc guide barrel B12 being provided with level of relative of side, support ring（This is not shown）It is connected to arc guide barrel B12.When radiographic source 1
Rotate along arc guide barrel B12, and the axis of radiographic source 1 is in vertical direction, support ring plays to radiographic source 1 well
Supporting role, it is to avoid 1 effect by retractor device 8 of radiographic source forms cantilever design.
As shown in figure 4, support ring 14 is entangled radiographic source 1 and contacted with radiographic source 1 all the time, arc is connected to by slide block and leads
Groove B（This is not shown）Interior and can rotate along arc guide barrel B.
As shown in figure 5, top board is provided with circular guide A, support 2 is connected in circular guide A13 and can be rotated with 360 °.
The operation principle of the present embodiment is：Before radiotherapy, patient is transferred to the target that appropriate position makes patient by therapeutic bed
After area is located at the isocenter point of this radiotherapy system, there are Three models can select：（1）Support rotates 360 ° along circular guide A
After suspend, radiographic source rotates certain angle along arc track, and support continues on circular guide A and rotates 360 °；（2）Support
Continuously rotate along circular guide A, radiographic source rotates along arc track and continuously rotates back and forth simultaneously；（3）Radiographic source is along arc
Shape track suspends after side turns to opposite side, and support rotates certain angle along circular guide A, then radiographic source along
Arc track rotates back to original side.Corresponding pattern can be selected according to practical situation during use.Meanwhile, figure guiding dress
Put, in radiotherapy, location tracking is carried out to target area, when finding that initial position is deviateed in target area, just utilize the sextuple motion of therapeutic bed
Patient is carried out put position so that the target area of patient comes back to the isocenter point of this radiotherapy system.So, it is achieved that using figure
As guiding, arbitrarily angled above patient carries out 360 ° of rotation arcing radiotherapies to target area, farthest improves burnt skin ratio, changes
Kind radiotherapy quality.
The above, be only preferred embodiment of the present utility model, not this utility model is made any formal
Restriction.Any those of ordinary skill in the art, without departing under technical solutions of the utility model ambit, all available
The methods and techniques content of the disclosure above makes many possible variations and modification to technical solutions of the utility model, or is revised as
The Equivalent embodiments of equivalent variations.Therefore, every content without departing from technical solutions of the utility model, according to of the present utility model
Technical spirit, to any simple modification made for any of the above embodiments, equivalent variations and modification, all still falls within this utility model technology
In the range of scheme protection.
Claims (7)
1. a kind of radiotherapy system, including radiographic source, is used for fixing radiogenic support, two X-ray bulbs and X-ray
Corresponding two detectors of bulb, therapeutic bed it is characterised in that：
Also include top board, described top board and ceiling are connected and are provided with circular guide A；
The top of described support is connected in described circular guide A by slide block and can rotate along circular guide A；
Described support is provided with an arc guide barrel A that Open Side Down；
Also include a retractor device, the upper end of described retractor device is connected in described arc guide barrel A, lower end is solid with radiographic source
Even, described retractor device drives radiographic source both can rotate along arc track A, can move along the radial direction of arc track A again
Dynamic；
Described X-ray bulb and support be connected and can concomitant rotation, two X-ray bulbs are with radiotherapy isocenter point same
In perpendicular；
Described detector is located at the lower section of therapeutic bed, can with the rotation of X-ray bulb synchronous axial system in the horizontal plane, make
X-ray bulb to send ray vertical with the receiving plane of corresponding detector all the time.
2. radiotherapy system according to claim 1 it is characterised in that：Described arc guide barrel A is located at the middle part of support,
The bottom of described support is provided with the arc guide barrel B that two openings are in level of relative；In described arc guide barrel A and arc guide barrel B
The heart is respectively positioned on radiotherapy isocenter point.
3. radiotherapy system according to claim 1 it is characterised in that：Also include a support ring, described support ring
Entangle radiographic source and contact with radiographic source all the time, be connected in arc guide barrel B by slide block and can be along arc guide barrel B and institute
State retractor device synchronous axial system.
4. radiotherapy system according to claim 1 it is characterised in that：Also include a base plate, above described base plate
Side is provided with circular guide B, and described detector is connected in described circular guide by slide block and can rotate along circular guide,
Described therapeutic bed is located above base plate.
5. the radiotherapy system described in claim 1 or 2 it is characterised in that：Described support is by rack body and two supports
Cantilever arm forms, and with regard to arc guide barrel place plane symmetry, X-ray bulb is arranged on support cantilever arm to two support cantilever arms
On.
6. the radiotherapy system described in claim 1 or 4 it is characterised in that：Described therapeutic bed is sextuple therapeutic bed, and by complete
Carbon fiber is fabricated by.
7. the radiotherapy system according to claim 1 or 3 it is characterised in that：Described radiographic source is C-band electronic line of sight
Accelerator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620581538.0U CN205924726U (en) | 2016-06-16 | 2016-06-16 | Radiation therapy system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620581538.0U CN205924726U (en) | 2016-06-16 | 2016-06-16 | Radiation therapy system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205924726U true CN205924726U (en) | 2017-02-08 |
Family
ID=57932084
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620581538.0U Withdrawn - After Issue CN205924726U (en) | 2016-06-16 | 2016-06-16 | Radiation therapy system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205924726U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105920745A (en) * | 2016-06-16 | 2016-09-07 | 四川大学 | Radiation therapy system |
| CN108175955A (en) * | 2018-01-15 | 2018-06-19 | 西安大医数码科技有限公司 | A kind of radiotherapy apparatus |
| WO2022140987A1 (en) * | 2020-12-28 | 2022-07-07 | 西安大医集团股份有限公司 | Image-guided cooperation method and system, and electronic device and computer storage medium |
-
2016
- 2016-06-16 CN CN201620581538.0U patent/CN205924726U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105920745A (en) * | 2016-06-16 | 2016-09-07 | 四川大学 | Radiation therapy system |
| CN105920745B (en) * | 2016-06-16 | 2019-02-15 | 四川大学 | Radiotherapy system |
| CN108175955A (en) * | 2018-01-15 | 2018-06-19 | 西安大医数码科技有限公司 | A kind of radiotherapy apparatus |
| WO2022140987A1 (en) * | 2020-12-28 | 2022-07-07 | 西安大医集团股份有限公司 | Image-guided cooperation method and system, and electronic device and computer storage medium |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20170208 Effective date of abandoning: 20190215 |