CN206103130U - Medical accelerator high strength beam treatment device - Google Patents
Medical accelerator high strength beam treatment device Download PDFInfo
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- CN206103130U CN206103130U CN201620515025.XU CN201620515025U CN206103130U CN 206103130 U CN206103130 U CN 206103130U CN 201620515025 U CN201620515025 U CN 201620515025U CN 206103130 U CN206103130 U CN 206103130U
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- target
- accelerating tube
- electron gun
- medical accelerator
- therapeutic system
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Abstract
The utility model relates to a medical accelerator high strength beam treatment device belongs to the medical instrument field, including accelerating tube (6), accelerating tube (6) bottom sets up target (1), it sets up collimater (2) to correspond target (1) in the below, collimater (2) below sets up ionization chamber (4), ionization chamber (4) below sets up and shines first corresponding tungsten door (5), electron gun (14) is linked to the input of accelerating tube (6), electron gun power (15) is connected in electron gun (14), waveguide window (16) of accelerating tube (6) are connected in power source (22) through microwave transmission system (13). The utility model has the advantages of simple and reasonable structure, can shorten patient's treatment time, improve treatment efficiency, the local control that can effectively improve the tumour is rateed, reduces the complication of normal structure, has improved the existence quality after the patient treats.
Description
Technical field
The utility model is related to a kind of medical accelerator high-intensity beams therapeutic system, belongs to medical instruments field.
Background technology
Malignant tumour is the first big killer of the mankind, and current oncotherapy mode mainly has radiotherapy, chemotherapy and operative treatment
Three kinds of major ways, and radiotherapy is one of most common method in current oncotherapy.
Conventional radiotherapy is that requirement carries out expansion to dosage distribution in open country, is to need to produce accelerating tube electronic target
Raw X-ray passes through expansion device so as to obtain the beam that clinically required dosage is evenly distributed, while GB is to expansion
Degree also has certain standard to require.The advantage of this Therapeutic mode is that dosage is evenly distributed in launched field, in being conducive to therapeutic process
Rapid Dose Calculation and control, have the disadvantage after equal monoblock expansion, most dosage can be lost, the close rate after expansion can compare
Reduce many before expansion, its direct result for producing is to cause treatment time long.Treatment time is assessment radiosurgery technology
An important clinical factor. because treatment time it is long, increase patient body burden, while can make to normal histocyte
Into damage, secondary carcinogenic possibility is produced.Recently as the development of accurate radiotherapy, accurate radiotherapy pursues high dose less by several times
Pattern, while target area exposure dose is improved, effectively reduces target area external dose and has become the urgent difficulty for solving of current needs
Topic.
With the development of accelerator art, the research for cancelling expansion filter increases year by year, by the research of technology, can be with
It was found that medical FFF patterns (cancelling expansion filter) have preferably impact on the radiance of the whole machine of accelerator.Abroad in Recent Years
The companies such as producer Varian, Accury have all developed the commercialization accelerator products of similar FFF patterns (cancelling expansion filter),
The TrueBeam products of Varian companies have X-ray to provide FFF patterns, i.e. 6MV FFF patterns, its 6MV FFF depth dose point
Cloth characteristic is similar to 4MV FF patterns, the 6MV FFF pattern depths of the Tomotherapy and Cyberknife products of Accury companies
Degree dose distribution is also similarly to 4MV FF pattern X-rays, and this is TrueBeam, Tomotherapy and Cyberknife
Weak point, the high-intensity beams Therapeutic mode that our company is studied not only with FFF patterns high dose rate and also have with
The similar beam depth dose characteristics of integral pattern, efficiently solve the deficiency of above FFF pattern, and have higher than above product
Close rate.
Utility model content
According to deficiency of the prior art above, problem to be solved in the utility model is：There is provided a kind of simple structure to close
Reason, can shorten patient's treatment time, improve therapeutic efficiency, can effectively improve the Partial controll rate of tumour, reduce normal structure
Complication, improve patient treat after life quality medical accelerator high-intensity beams therapeutic system.
The utility model solves the technical scheme that its technical problem adopted：
Described medical accelerator high-intensity beams therapeutic system, including accelerating tube, accelerate bottom of the tube to arrange target, correspondence target
Collimater is set in lower section, collimater lower section arranges ionisation chamber, and ionisation chamber lower section arranges the tungsten door corresponding with irradiation head, accelerates
The input link electron gun of pipe, electron gun connection electron gun power supply, power source connects accelerating tube by microwave transmission system
Waveguide window.
Under the roentgenotherapia pattern of medical accelerator, eliminate the expansion being installed on inside accelerator treatment head and filter
Device, the entrance microwave power of accelerating tube and the |input paramete of electron gun it is controllable, and by improve system microwave power
Or adjustment accelerates the injection parameter of tube electron gun, or the injection of tube electron gun is accelerated by the microwave power and adjustment that improve system
Parameter two ways is combined, and makes the depth dose characteristics and conventional accelerator of X-ray beam produced by final medical accelerator
There are the depth dose characteristics of the Conventional beam after expansion device expansion basically identical.Simultaneously because microwave power and electron gun injection ginseng
Several change so that X-ray output dose rate more individually removes expansion device and do not change the note of system microwave power and electron gun
Enter to have under Parameter Conditions and more greatly improve, clinical tumor patient radiotherapy can be effectively served in.
It is further preferably, target using single material tungsten target or gold target or be not limited to single material or structure tungsten target and
The composition target of the composition target of gold target or any multiple material.It is easy to use.
Further preferably accelerating tube is uprightly installed in accelerator treatment head, and target is arranged on the end of accelerating tube.Electronics
Line accelerates to acceleration pipe end and directly practices shooting generation X-ray.
Further preferably accelerating tube is horizontal to be installed in frame, accelerates pipe end connection deflection magnet, deflection magnet bottom
Portion is installed by target.Electron beam is accelerated to and accelerates pipe end target practice after the clinical angle for needing carries out magnetic deflection to produce X-ray, should
Angle is not limited to 0 ° to 360 ° any range.
Further preferred, power source is using magnetron or klystron.
Further preferred, electron gun adopts three pole grided electron guns.
Further preferred, target is fixedly mounted on the end for accelerating pipe end or target that accelerating tube is arranged on by moving parts
End；
Further preferably moving parts includes mounting seat, arranges in mounting seat and arrange in track, track target holder, target holder
Driving means of the connect setting in mounting seat, set location detection means in mounting seat, target is fixed on target holder.
The utility model is had an advantageous effect in that：
Medical accelerator high-intensity beams therapeutic system described in the utility model can be greatly improved the agent of beam
Dose rate, while the depth dose characteristics as conventional expansion beam can be obtained, the technology can be applied to accurate radiotherapy, enter one
Step shortens patient's treatment time, improves therapeutic efficiency, so as to reach the Partial controll rate that can effectively improve tumour, reduces normal group
The complication knitted, improves the purpose of the life quality after patient treats, simple structure, with stronger practicality.
Description of the drawings
Fig. 1 is prior art construction schematic diagram
Fig. 2 is structural representation of the present utility model；
Fig. 3 is uprightly to install accelerating tube structural representation；
Fig. 4 is horizontal installation accelerating tube structural representation；
Fig. 5 is to fix target structure schematic diagram；
Fig. 6 is running target structural representation；
Fig. 7 is the structural representation of moving parts；
Fig. 8 is high intensity pattern accelerator system composition frame chart；
Fig. 9 is accelerator treatment head flatness filter carrousel system schematic
In figure, 1, target；2nd, collimater；3rd, expansion filter；4th, ionisation chamber；5th, tungsten door；6th, accelerating tube；7th, deflection magnet；
8th, mounting seat；9th, track；10th, driving means；11st, position detecting device；12nd, target holder；13rd, microwave transmission system；14th, electronics
Rifle；15th, electron gun power supply；16th, waveguide window；17th, moving parts；18th, fixed disk；19th, gear detection and fixation kit；20th, turn
Moving plate；21st, drive component；22nd, power source.
Specific embodiment
Embodiment of the present utility model is described further below in conjunction with the accompanying drawings：
As shown in figure 1, prior art is the bottom of accelerating tube 6 arranging target 1, correspondence target 1 arranges collimater 2, collimation in lower section
The corresponding expansion filter 3 in the lower section of device 2, the lower section of expansion filter 3 arranges ionisation chamber 4, and the lower section of ionisation chamber 4 arranges relative with irradiation head
The tungsten door 5 answered,
As shown in Fig. 2-Fig. 8, medical accelerator high-intensity beams therapeutic system described in the utility model, including accelerating tube
6, the bottom of accelerating tube 6 arranges target 1, and correspondence target 1 arranges collimater 2 in lower section, and the lower section of collimater 2 arranges ionisation chamber 4, ionisation chamber 4
Lower section arranges the tungsten door 5 corresponding with irradiation head, the input link electron gun 14 of accelerating tube 6, the connection electron gun of electron gun 14
Power supply 15, power source 22 connects the waveguide window 16 of accelerating tube 6 by microwave transmission system 13.
Described target 1 using single material tungsten target or gold target or be not limited to the tungsten target and gold target of single material or structure
The composition target of composition target or any multiple material.Described power source 22 adopts three using magnetron or klystron, electron gun 14
Pole grided electron gun.
As Figure 3-Figure 4, described accelerating tube 6 is uprightly installed in accelerator treatment head, and target 1 is arranged on accelerating tube 6
End, electric wire accelerates to acceleration pipe end and directly practices shooting generation X-ray；Accelerating tube 6 is horizontal to be installed in frame, accelerating tube
6 ends connect deflection magnet 7, and target 1 is installed in the bottom of deflection magnet 7, and electron beam is accelerated to and accelerates what pipe end needed through clinic
Angle carries out being practiced shooting after magnetic deflection and produces X-ray, and the angle is not limited to 0 ° to 360 ° any range.
As shown in Figure 5-Figure 7, described target 1 is fixedly mounted on the end of accelerating tube 6 or target 1 is arranged on by moving parts 17
The end of accelerating tube 6；Moving parts 17 includes mounting seat 8, arranges in mounting seat 8 and arrange in track 9, track 9 target holder 12, target holder
Driving means 10 of 12 connect settings in mounting seat 8, set location detection means 11 in mounting seat 8, target 1 is fixed on target holder 12
On.
The operation principle of described medical accelerator high-intensity beams therapeutic system and use process：
1) power source 22 injects microwave power into accelerating tube 6 by microwave transmission system 13, forms standing-wave electric field；
2) electron gun 14 is to launching electronics in accelerating tube 6；
3) electron beam accelerates in standing-wave electric field, to accelerate to and (generally reach 4MV-25MV) after certain energy, passes sequentially through
Target 1, collimater 2, ionisation chamber 4 and tungsten door 5 are exported, and form high-intensity beams.The formation of high-intensity beams is by individually improving micro-
Wave power or the individually injection parameter of adjustment electron gun 14, or two kinds of injection parameter for improving microwave power and adjustment electron gun 14
The mode of combination is realized.
Specific embodiment of the utility model：
Accelerator for electron therapy, the launching electronics of electron gun 14 in accelerating tube 6 accelerate in standing wave accelerating cavity chain, accelerate
Practice shooting to after certain energy and produce x-ray.Under conventional therapy pattern, ray does the radiation of various technologies Jing after expansion filter expansion
Treatment, conventional accelerator close rate now Jing after expansion is typically in 400cGy/min.m or so.When needing high-intensity therapeutic mould
During formula, expansion filter 3 is removed, the X-ray of generation of now practicing shooting directly leads out without expansion, and close rate is about Jing after expansion
2.5 times or so of close rate, but now 6MV is low without the depth dose of expansion ray, the depth with 4MV routine expansion beams
Dose Characteristics are similar, therefore to reach the depth dose similar to 6MVX beams after expansion, need to improve the energy of ray.Now may be used
With the output microwave power by improving magnetron, the |input paramete of the electron gun 14 of accelerating tube 6 is adjusted, make accelerating tube outlet defeated
Outgoing heat input is in 7MV or so, while close rate is compared with the improve having before adjustment by a relatively large margin again, up to 1600cGy/min.m
More than, and the now depth dose of non-expansion beam even more high consistent with the depth dose of 6MV X beams after expansion.
Accelerator described in the utility model possesses flatness filter carrousel kinematic system, it is possible to provide two or more stations and treatment
Model selection, expansion filter can carry out position movement or switching according to the demand of Therapeutic mode；Referring specifically to Fig. 9, including solid
Price fixing 18, gear is detected and fixation kit 19, rotation dish 20 and drive component 21；The mechanism can not also take rotating disk mechanism,
Straight-line displacement etc. can also be taken to carry out the arbitrary structures of position conversion；
High-intensity therapeutic pattern described in the utility model is applicable to the single energy of single photon low energy accelerator (for example
Single 6MV) or middle high energy two-photon accelerator any energy gear (such as 6MV, 10MV, 15MV etc.).High-intensity beams
Therapeutic mode is the distribution of nature dosage, off-axis dosage falls comparatively fast, and field dosage is less, the Therapeutic mode by it is supporting specially
TPS treatment planning systems, can be used to realizing 3D-CRT (3 dimensional conformal radiation therapy), SRS (Stereotactic radiosurgery),
SBRT (body portion SRT), IMRT (IMRT), VMAT (volume IMRT) etc..
The utility model can be greatly improved the close rate of beam, while can obtain as conventional expansion beam
Depth dose characteristics, the technology can be applied to accurate radiotherapy, further shorten patient's treatment time, improve therapeutic efficiency, from
And the Partial controll rate of tumour that can effectively improve is reached, and the complication of normal structure is reduced, improve the life quality after patient treats
Purpose, simple structure, with stronger practicality.
Can be achieved by the prior art without the technical characteristic of description in the utility model, will not be described here.This reality
It is not limited in above-mentioned specific embodiment with new, those of ordinary skill in the art do in essential scope of the present utility model
Change, remodeling, addition or the replacement for going out, should also belong to protection domain of the present utility model.
Claims (8)
1. a kind of medical accelerator high-intensity beams therapeutic system, including accelerating tube (6), it is characterised in that：Accelerating tube (6) bottom
Target (1) is set, and correspondence target (1) arranges collimater (2) in lower section, and collimater (2) lower section arranges ionisation chamber (4), under ionisation chamber (4)
Side arranges the tungsten door (5) corresponding with irradiation head, input link electron gun (14) of accelerating tube (6), electron gun (14) connection
Electron gun power supply (15), power source (22) connects the waveguide window (16) of accelerating tube (6) by microwave transmission system (13).
2. medical accelerator high-intensity beams therapeutic system according to claim 1, it is characterised in that：Described target (1)
Using single material tungsten target or gold target or be not limited to single material or the tungsten target of structure and the composition target of gold target or arbitrarily various
The composition target of material.
3. medical accelerator high-intensity beams therapeutic system according to claim 1, it is characterised in that：Described accelerating tube
(6) uprightly it is installed in accelerator treatment head, end of the target (1) installed in accelerating tube (6).
4. medical accelerator high-intensity beams therapeutic system according to claim 1, it is characterised in that：Described accelerating tube
(6) horizontal to be installed in frame, target (1) is installed in accelerating tube (6) end connection deflection magnet (7), deflection magnet (7) bottom.
5. medical accelerator high-intensity beams therapeutic system according to claim 1, it is characterised in that：Described power source
(22) using magnetron or klystron.
6. medical accelerator high-intensity beams therapeutic system according to claim 1, it is characterised in that：Described electron gun
(14) using three pole grided electron guns.
7. medical accelerator high-intensity beams therapeutic system according to claim 1, it is characterised in that：Described target (1)
Be fixedly mounted on accelerating tube (6) end or target (1) by moving parts (17) installed in accelerating tube (6) end.
8. medical accelerator high-intensity beams therapeutic system according to claim 7, it is characterised in that：Described move portion
Part (17) includes mounting seat (8), arranges in mounting seat (8) and arrange in track (9), track (9) target holder (12), target holder (12) connection
The driving means (10) being arranged in mounting seat (8), set location detection means (11) in mounting seat (8), target (1) is fixed on target
In support (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620515025.XU CN206103130U (en) | 2016-05-31 | 2016-05-31 | Medical accelerator high strength beam treatment device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620515025.XU CN206103130U (en) | 2016-05-31 | 2016-05-31 | Medical accelerator high strength beam treatment device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206103130U true CN206103130U (en) | 2017-04-19 |
Family
ID=58509244
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620515025.XU Withdrawn - After Issue CN206103130U (en) | 2016-05-31 | 2016-05-31 | Medical accelerator high strength beam treatment device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206103130U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105879246A (en) * | 2016-05-31 | 2016-08-24 | 山东新华医疗器械股份有限公司 | High-intensity beam treatment device of medical accelerator and treatment method |
-
2016
- 2016-05-31 CN CN201620515025.XU patent/CN206103130U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105879246A (en) * | 2016-05-31 | 2016-08-24 | 山东新华医疗器械股份有限公司 | High-intensity beam treatment device of medical accelerator and treatment method |
| CN105879246B (en) * | 2016-05-31 | 2019-03-05 | 山东新华医疗器械股份有限公司 | Medical accelerator high-intensity beams therapeutic device and control method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20170419 Effective date of abandoning: 20190305 |