CN106110516A - A kind of imaging collimation body, treatment head and therapeutic equipment - Google Patents
A kind of imaging collimation body, treatment head and therapeutic equipment Download PDFInfo
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- CN106110516A CN106110516A CN201610440231.3A CN201610440231A CN106110516A CN 106110516 A CN106110516 A CN 106110516A CN 201610440231 A CN201610440231 A CN 201610440231A CN 106110516 A CN106110516 A CN 106110516A
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- 238000003384 imaging method Methods 0.000 title claims abstract description 83
- 230000001225 therapeutic effect Effects 0.000 title claims abstract description 17
- 230000005855 radiation Effects 0.000 claims abstract description 73
- 230000002285 radioactive effect Effects 0.000 claims abstract description 56
- 239000000945 filler Substances 0.000 claims description 23
- 239000000463 material Substances 0.000 claims description 15
- 238000001228 spectrum Methods 0.000 claims description 8
- 238000001914 filtration Methods 0.000 claims description 7
- 230000003902 lesion Effects 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 12
- 238000001959 radiotherapy Methods 0.000 description 6
- 208000027418 Wounds and injury Diseases 0.000 description 4
- 230000007423 decrease Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- GUTLYIVDDKVIGB-OUBTZVSYSA-N Cobalt-60 Chemical compound [60Co] GUTLYIVDDKVIGB-OUBTZVSYSA-N 0.000 description 2
- 206010052428 Wound Diseases 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 208000014674 injury Diseases 0.000 description 2
- 230000005469 synchrotron radiation Effects 0.000 description 2
- 241000208340 Araliaceae Species 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 description 1
- 235000003140 Panax quinquefolius Nutrition 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 235000008434 ginseng Nutrition 0.000 description 1
- 231100000915 pathological change Toxicity 0.000 description 1
- 230000036285 pathological change Effects 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 208000011581 secondary neoplasm Diseases 0.000 description 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 239000010937 tungsten Substances 0.000 description 1
Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N5/00—Radiation therapy
- A61N5/10—X-ray therapy; Gamma-ray therapy; Particle-irradiation therapy
-
- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21K—TECHNIQUES FOR HANDLING PARTICLES OR IONISING RADIATION NOT OTHERWISE PROVIDED FOR; IRRADIATION DEVICES; GAMMA RAY OR X-RAY MICROSCOPES
- G21K1/00—Arrangements for handling particles or ionising radiation, e.g. focusing or moderating
- G21K1/02—Arrangements for handling particles or ionising radiation, e.g. focusing or moderating using diaphragms, collimators
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- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Pathology (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Radiology & Medical Imaging (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- General Engineering & Computer Science (AREA)
- High Energy & Nuclear Physics (AREA)
- Radiation-Therapy Devices (AREA)
Abstract
The invention provides a kind of imaging collimation body, treatment head and therapeutic equipment, relate to technical field of medical instruments, the treatment bundle that radioactive source sends imaging after this imaging collimation body, it is possible to the lesion image that degree of being contrasted is high, and reduce the additional radiation that patient receives.A kind of imaging collimation body, including: stop body, described stop body is provided with at least one hollow part, described hollow part includes a bottom surface and a side, described stop body decays to particular energy for the radiation beam sent by radioactive source, described hollow part retrains for the radiation beam sending radioactive source, to form the angular-spread beam with given shape.
Description
Technical field
The present invention relates to technical field of medical instruments, particularly relate to a kind of imaging collimation body, treatment head and therapeutic equipment.
Background technology
Radiotherapy is to send ray irradiation line by radioactive source, and lonizing radiation ray focusing is in same focus target spot so that
This focus target spot is corresponding with the position of body foci or other focuses, focus is killed by lonizing radiation ray, thus realizes nothing
The treatment means of wound treatment.
The core component of existing therapeutic equipment is as it is shown in figure 1, include treatment 11 and image guide, wherein,
Image guide includes bulb 21 and first detector 22 corresponding with bulb 21.Treatment 11 sends putting for the treatment of level energy
Ray, irradiates for focus 10.Bulb 21 is used for sending x-ray, and the focus 10 passing patient is received by the first detector 22,
First detector 22 obtains focus data according to the x-ray through body foci 10 received, and becomes the focus 10 of human body
Picture, follows the trail of, so that focus 10 receives specific dose at target position with the pendulum position before treating and the focus in treatment
The radiation beam of amount irradiates.
On the one hand, the treatment head of existing therapeutic equipment is relatively big, causes treatment cavity space less, and image guide
Have compressed treatment space further, add system complexity.On the other hand, image guide is expensive, uses multiple
Detector adds equipment cost.Therefore, some manufacturers utilize the treatment Shu Jinhang imaging for the treatment of head, i.e. as in figure 2 it is shown, treat
Equipment include treatment 11 and with treatment 11 the second corresponding detectors 12.Putting of a treatment 11 treatment level energy sent
Ray is received by the second detector 12 through body foci 10, with focus 10 imaging to human body.
Although so can reduce cost, but the energy treating the treatment level power radiation bundle that hair goes out is higher, penetrance
By force, the strength retrogression in different material distinguishes not quite, thus the contrast directly utilizing treatment Shu Suocheng image is poor.And
Utilizing the pendulum position before treatment level power radiation Shu Jinhang treatment, patient can receive substantial amounts of additional radiation dosage, it is possible to can draw
Send out secondary tumor and other pathological changes, be unfavorable for the health of patient.
Summary of the invention
Embodiments of the invention provide a kind of imaging collimation body, treatment head and therapeutic equipment, the treatment bundle that radioactive source sends
Imaging after this imaging collimation body, it is possible to the high lesion image being contrasted, and reduce the additional radiation that patient receives.
For reaching above-mentioned purpose, embodiments of the invention adopt the following technical scheme that
First aspect, embodiments provides a kind of imaging collimation body, and including stop body, described stop body sets
Being equipped with at least one hollow part, described hollow part includes a bottom surface and a side, and the beam that radioactive source sends is through described
The hollow part of imaging collimation body, forms the angular-spread beam with particular energy and shape.
Optionally, described stop body is run through in the bottom surface of described hollow part.
Optionally, described hollow part also includes end face, described side between described end face and described bottom surface, described top
Face is less than described bottom surface.
Optionally, bottom surface and/or the end face of described hollow part runs through described stop body.
Optionally, being provided with filler in described hollow part, described filler is less than described block to the attenuation quotient of beam
The main body attenuation quotient to beam.
Optionally, in described hollow part, be provided with at least two filler, from the center of described hollow part to side, described in fill out
The mean attenuation coefficient of material is gradually increased.
Optionally, the subregion of described hollow part filled by described filler.
Optionally, from the central area of described hollow part to marginal area side, the thickness of described filler increases.
Optionally, described stop body includes the sub-block of at least two.
Optionally, described hollow part is circular cone.
Optionally, described hollow part is round platform.
Optionally, described stop body is additionally provided with at least one collimating aperture.
On the other hand, embodiments provide one and treat head, provide including radioactive source and the embodiment of the present invention
Arbitrary described imaging collimation body, wherein, described radioactive source is positioned at the described stop body side away from described bottom surface.
Optionally, described treatment head also includes filtration layer, for changing intensity and/or the light of the radiation beam that radioactive source sends
Spectrum.
Optionally, described radioactive source is just to described hollow part.
Optionally, described stop body is cylinder, is additionally provided with the feelings of at least one collimating aperture in described stop body
Under condition, described collimating aperture and described hollow part circle distribution are in described stop body；
Staggering with described radioactive source in the axis of described stop body, described stop body can be able to be revolved around described axis
Turn, so that the lonizing radiation that described radioactive source sends are penetrated by described collimating aperture or blocked by described stop body.
On the other hand, a kind of therapeutic equipment, the arbitrary institute provided including the embodiment of the present invention are embodiments provided
The treatment head stated.
The embodiment provides a kind of imaging collimation body, treatment head and therapeutic equipment, the embodiment of the present invention provides
Imaging collimation body be applied to radiotherapy equipment, the radiation beam energy that the radioactive source of radiotherapy equipment sends is higher, pass through
After this imaging collimation body, the energy of radiation beam can not only be reduced, the angular-spread beam of given shape can also be formed by hollow part.
This angular-spread beam is used for the imaging of focus, owing to this angular-spread beam energy is relatively low, thus (such as focus in the different material of human body
And surrounding tissue) strength retrogression's difference relatively big, thus the picture contrast formed is bigger, it is possible to form focus figure clearly
Picture.And the energy of radiation beam is relatively low, the secondary injury to patient can be reduced for imaging.
Accompanying drawing explanation
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
In having technology to describe, the required accompanying drawing used is briefly described, it should be apparent that, the accompanying drawing in describing below is only this
Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, it is also possible to
Other accompanying drawing is obtained according to these accompanying drawings.
Fig. 1 is existing therapeutic equipment schematic diagram；
Fig. 2 is existing therapeutic equipment schematic diagram；
A kind of imaging collimation body schematic diagram that Fig. 3 provides for the embodiment of the present invention；
Fig. 4 is the schematic diagram that the radiation beam utilizing the imaging collimation body shown in Fig. 3 to send radioactive source retrains；
The another kind of imaging collimation body schematic diagram that Fig. 5 provides for the embodiment of the present invention；
The another kind of imaging collimation body schematic diagram that Fig. 6 provides for the embodiment of the present invention；
The another kind of imaging collimation body schematic diagram that Fig. 7 provides for the embodiment of the present invention；
Fig. 8 is the spot energy distribution schematic diagram of the radiation beam that radioactive source sends；
The another kind of imaging collimation body schematic diagram that Fig. 9 provides for the embodiment of the present invention；
The another kind of imaging collimation body schematic diagram that Figure 10 provides for the embodiment of the present invention；
Figure 11 is the plan structure schematic diagram of the imaging collimation body shown in Figure 10；
Figure 12 is the treatment head schematic diagram including the imaging collimation body shown in Figure 11.
Reference:
1-radioactive source；3-imaging collimation body；4-filler；10-focus；11-treats head；12-the second detector；21-bulb；
22-the first detector；30-stop body；31-hollow part；32-collimating aperture；33-axis；311-bottom surface；312-side；
313-end face.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Describe, it is clear that described embodiment is only a part of embodiment of the present invention rather than whole embodiments wholely.Based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under not making creative work premise
Embodiment, broadly falls into the scope of protection of the invention.
Embodiments provide a kind of imaging collimation body 3, as it is shown on figure 3, include stop body 30, stop body 30
Being provided with at least one hollow part 31, hollow part 31 includes a bottom surface 311 and a side 312.Stop body 30 is used for will
The radiation beam that radioactive source sends decays to particular energy, and hollow part retrains for the radiation beam sending radioactive source, with shape
Become there is the angular-spread beam of given shape.
First, in therapeutic equipment, radioactive source can be nucleic source, such as cobalt-60, it is also possible to is synchrotron radiation or neutron
Source etc..The light-emitting area size of radioactive source is relatively big it is thus desirable to the radiation beam sending radioactive source retrains, to form little focus
Angular-spread beam.The energy that radioactive source sends is higher, during constraint, it is carried out appropriateness and filters and decay, so that angular-spread beam
There is the relatively low power spectrum of applicable imaging.
It should be noted that in the embodiment of the present invention, stop body can be formed by ferrum, lead or tungsten etc., thus right
The radiation beam energy that radioactive source sends has stronger attenuation, and due to the different materials energy decay estimation to radiation beam
Difference, such that it is able to the radiation beam sent by radioactive source decays to particular energy.Certainly, according to the requirement of radiation beam energy not
With, imaging collimation body can also is that and formed by other materials.Additionally, imaging collimation body can be rectangular block shape, it is also possible to be round
Column, it is also possible to being that other are irregularly shaped etc., the shape of stop body is not specifically limited by the embodiment of the present invention.
With reference to shown in Fig. 4, radioactive source 1 is used for treating, and the radiation beam sent is generally high-energy (energy is all higher than 1MeV)
Radiation beam and dissipate to four sides, owing to imaging collimation body 3 has energy attenuation effect, it is possible to reduce through imaging collimation the putting of body
The energy of beam.Such as imaging collimation body is formed by lead, and its thickness is D, reaches as a example by 10 half layers that decline by thickness D, radioactive source 1
The radiation beam sent through this imaging collimation body after, its energy attenuation to less than 0.1%, and the radiation beam warp that radioactive source 1 sends
When crossing hollow part 31, damping capacity substantially equal to thickness is the attenuation of the imaging collimation body of D-d1, through the decay of hollow part
Amount substantially can be less than the 30% of primary power, the such as radiation beam after hollow part 31 have primary power 20%,
10%, 5% or 1% etc. is zero.Example, be as a example by 5 half layers that decline by the thickness of d1, then the radiation beam after hollow part 31
Have primary power about 3% energy.Certainly, the size of this energy and the height of hollow part and the thickness of imaging collimation body
Degree and material etc. are relevant, can carry out the selection of different materials and thickness in the specific implementation as required.
Additionally, with reference to shown in Fig. 4, as a example by hollow part 31 is as circular cone, then the radiation beam that radioactive source 1 sends is through hollow part
For taper angular-spread beam after 3.I.e. hollow part 31 can retrain the shape of radiation beam further, thus formed and have sending out of given shape
Debunching.Certainly, the shape of hollow part can also is that cylinder, tetrahedron etc., and Fig. 3, Fig. 4 are only carried out as a example by hollow part is as circular cone in detail
Describe in detail bright.
The imaging collimation body embodiment of the present invention provided is applied to radiotherapy equipment, the radioactive source of radiotherapy equipment
The radiation beam energy sent is higher, after this imaging collimation body, can not only reduce the energy of radiation beam, by hollow part also
The angular-spread beam of given shape can be formed.This angular-spread beam is used for the imaging of focus, owing to this angular-spread beam energy is relatively low, thus
In the different material of human body, strength retrogression's difference of (such as focus and surrounding tissue) is relatively big, thus the picture contrast formed is relatively
Greatly, it is possible to form lesion image clearly.And the energy of radiation beam is relatively low, the wound of the secondary to patient can be reduced for imaging
Evil.
Imaging collimation body 3 in the embodiment of the present invention can also is that as it is shown in figure 5, block master is run through in the bottom surface of hollow part 31
Body 30.Then through hollow part 31 radiation beam energy mainly by hollow part top to imaging collimation body surface distance (i.e.
D2) determine.Then can determine that hollow part top collimates the surface of body to imaging according to the demand of the energy size to radiation beam
Distance.
A kind of imaging collimation body 3 that the embodiment of the present invention provides, as shown in Figure 6, hollow part 31 also includes end face 313, side
Face 312 is between end face 313 and bottom surface 311, and end face 313 is less than bottom surface 311.Example, hollow part 31 can be round platform.When
So, hollow part can also terrace with edge etc., the shape of hollow part is not specifically limited by the embodiment of the present invention.With reference to shown in Fig. 6, with sky
As a example by heart portion 31 is round platform, then the radiation beam that radioactive source sends can form the radiation beam of taper after hollow part 31.It is right
The decay of the radiation beam that radioactive source sends is affected by height and the height of imaging collimation body and the material etc. of round platform, permissible
Specific design according to actual needs.
A kind of imaging collimation body that the embodiment of the present invention provides, bottom surface and/or the end face of hollow part run through stop body.Then
Radiation beam energy through hollow part does not have the energy of the radiation beam that bigger decay, substantially equal to radioactive source send, hollow
Portion is only used for retraining the shape of radiation beam, and the radiation beam that the situation going for needing energy bigger or radioactive source send is less
Situation.
A kind of imaging collimation body 3 that the embodiment of the present invention provides, as it is shown in fig. 7, be provided with filler 4 in hollow part 31, fills out
Material 4 is less than the stop body 30 attenuation quotient to beam to the attenuation quotient of beam.
Relative to hollow part without situation about filling out, it is filled with filler at hollow part, it is possible to reduce through hollow part further
The energy of radiation beam.And filler 4 is less than the stop body 30 attenuation quotient to beam, Ke Yijin to the attenuation quotient of beam
One step ensures to be unlikely to the least through the energy of the radiation beam of hollow part 31.Certainly, filler to the attenuation quotient of radiation beam with filling out
The material of material is relevant, different fillers can be selected to fill out according to the energy requirement to radiation beam in actual use
Fill.
The difference of the material according to filler, original beam and filler generation Compton scattering can also change radiation further
The spectrum of bundle.
Further, at least two filler it is provided with in hollow part, such as so that from the center of hollow part to side, fill out
The mean attenuation coefficient of material is gradually increased, and forms the effect being gradually reduced from center to lateral stiffness that light open country is corresponding, to patient
Imaging decrease in dose while also enhance gained projection picture quality.
A kind of imaging collimation body 3 that the embodiment of the present invention provides, as it is shown in figure 9, the part district of hollow part 31 filled by filler 4
Territory.And further, so that the energy that the hot spot of radiation beam is in central area is relatively big, the energy in other regions is less, also
Being can be from the central area of hollow part to marginal area side, the thickness of filler increases.
Or, as it is shown in figure 9, the both sides of hollow part 31 filled by filler 4, thus formed light open country corresponding from center to side
The effect that intensity is gradually reduced, to the picture quality also enhancing gained projection while the imaging decrease in dose of patient.
Certainly, relatively big in order to realize the hot spot of the radiation beam energy in central area, the energy in other regions is less, also may be used
There to be other various ways, the embodiment of the present invention differs an illustration.
A kind of imaging collimation body that the embodiment of the present invention provides, stop body includes the sub-block of at least two.I.e. imaging is accurate
Stretched is made up of many sub-blocks, such that it is able to convenient fills filler etc. in hollow part.
Embodiments provide a kind of imaging collimation body 3, as shown in Figure 10, Figure 11, stop body 30 also sets up
There is at least one collimating aperture 32.As shown in figure 11, in the case of stop body 30 is provided with multiple collimating aperture 32, Duo Gezhun
The pore size of straight hole 32 can be different, such that it is able to the size of regulation radiation beam and energy, it is adaptable to different radiotherapies.
General, collimating aperture as shown in Figure 10, is through hole, its for radiation beam that radioactive source is sent carry out restrainting shape and
Focusing.Such as, multiple collimating aperture circumference array form a collimating aperture group, through the putting of multiple collimating apertures of same collimating aperture group
Beam-focusing is in a bit.
Size and the arrangement of embodiment of the present invention alignment straight hole are not specifically limited, and only say as a example by shown in the drawings
Bright.
Additionally, the imaging collimation body that the embodiment of the present invention provides, it is also possible to it is to include multiple hollow part, multiple hollow parts
Size can be different, thus identical radiation beam is different by the beam energy after different hollow parts, can for different building shape or
The patient at age selects different hollow parts to carry out imaging.Certainly, the filler in multiple hollow parts can also be different, with further
Adjust radiation beam by the beam energy after hollow part.
Embodiments provide one and treat head, with reference to shown in Fig. 4, including radioactive source 1 and as the present invention implements
Arbitrary imaging collimation body 3 that example provides, wherein, radioactive source 1 is positioned at the stop body 30 side away from bottom surface.Certainly, treatment head
Also include miscellaneous part, such as, include switch body, carry source body etc., unrelated with the inventive point of the present invention due to it, at this not to it
Do specific description.
Concrete, radioactive source is used for treating in treatment head, and it sends the lonizing radiation for the treatment of level energy, general beam energy
Amount is all higher than 1MeV, in the embodiment of the present invention, collimates body by imaging, and the energy of the radiation beam that can be sent by radiation beam reduces
For primary power less than 30%.Such that it is able to form lesion image clearly.And the energy of radiation beam is relatively low, can for imaging
To reduce the secondary injury to patient.
Further, treatment head also includes filtration layer, for changing intensity and/or the light of the radiation beam that radioactive source sends
Spectrum.Concrete, filtration layer may be located between radioactive source and imaging collimation body, or is positioned at imaging collimation body away from radioactive source
Side.Filtration layer may be used for changing the energy of radiation beam, or for changing the spectrum of radiation beam, it is also possible to it is to change simultaneously
The energy of radiation beam and spectrum.Example, filtration layer can be to be formed by aluminum, copper, carbon etc., and radiation beam is after filtration layer filters
Can improve spectrum in photon energy rectangular histogram, improve the contrast of imaging further.
The one that the embodiment of the present invention provides treats head, and with reference to shown in 4, radioactive source 1 is just to hollow part 31.
The one that the embodiment of the present invention provides treats head, in the case of the end face of hollow part runs through stop body, and radiation
Subordinate block is also included between source and imaging collimation body.This subordinate block is for reducing the energy of the radiation beam that radioactive source sends.
Certainly, subordinate block can also be in the imaging collimation body opposite side away from radioactive source, and it is not done by the embodiment of the present invention has
Body limits.
The one that the embodiment of the present invention provides treats head, and as shown in figure 12, stop body 30 is cylinder, in stop body 30
On be additionally provided with at least one collimating aperture 32 in the case of, collimating aperture 32 and hollow part 31 circle distribution are in stop body.Ginseng
According to shown in Figure 12, staggering with radioactive source 1 in the axis 33 of stop body 30, stop body 30 is rotatable around axis 33, so that
The lonizing radiation that send of radioactive source 1 are penetrated by collimating aperture 32 or are blocked by stop body 30.
Example, with reference to shown in Figure 11, Figure 12, imaging is collimated body half-twist counterclockwise, then radioactive source 1 will be with hollow
Portion 31 is the most right, now, relatively low through the energy of the radiation beam of this imaging collimation body 3, can be used in the pendulum position before treatment or treatment
Focus follow the trail of.Again this imaging is collimated body half-twist, then the radiation beam that radioactive source 1 sends is imaged collimation body 3 and decays to
Zero, i.e. realize source, pass.
A kind of therapeutic equipment, the treatment head provided including the embodiment of the present invention are be provided.
Example, this therapeutic equipment also includes circular-cylindrical, and circular-cylindrical has a central opening, and therapeutic bed can be at this
Central opening moves.Treatment head is arranged on circular-cylindrical, and circular-cylindrical is rotatable, thus drives treatment head around the center of cylinder
Line rotates.Certainly, this therapeutic equipment can also is that and includes multiple treatment head, and treatment head can be with focus head, it is also possible to be conformal head.
Radioactive source can be nucleic source, such as cobalt-60, it is also possible to being synchrotron radiation or neutron source etc., the embodiment of the present invention is to radioactive source
It is not specifically limited.
The above, the only detailed description of the invention of the present invention, but protection scope of the present invention is not limited thereto, and any
Those familiar with the art, in the technical scope that the invention discloses, can readily occur in change or replace, should contain
Cover within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with described scope of the claims.
Claims (17)
1. an imaging collimation body, it is characterised in that including: stop body, it is hollow that described stop body is provided with at least one
Portion, described hollow part includes a bottom surface and a side, and described stop body is for the radiation beam decay sent by radioactive source
For particular energy, described hollow part retrains for the radiation beam sending radioactive source, has sending out of given shape to be formed
Debunching.
Imaging the most according to claim 1 collimation body, it is characterised in that described block master is run through in the bottom surface of described hollow part
Body.
Imaging the most according to claim 1 collimation body, it is characterised in that described hollow part also includes end face, described side
Between described end face and described bottom surface, described end face is less than described bottom surface.
Imaging the most according to claim 3 collimation body, it is characterised in that bottom surface and/or the end face of described hollow part run through
Described stop body.
Imaging the most according to claim 1 collimation body, it is characterised in that be provided with filler in described hollow part, described in fill out
Expect that the attenuation quotient to beam is less than the described stop body attenuation quotient to beam.
Imaging the most according to claim 5 collimation body, it is characterised in that be provided with at least two in described hollow part and fill out
Material, from the center of described hollow part to side, the mean attenuation coefficient of described filler is gradually increased.
Imaging the most according to claim 5 collimation body, it is characterised in that the part district of described hollow part filled by described filler
Territory.
Imaging the most according to claim 6 collimation body, it is characterised in that from the central area of described hollow part to marginal zone
Side, territory, the thickness of described filler increases.
Imaging the most according to claim 1 collimation body, it is characterised in that described stop body includes that at least two keeps off
Block.
Imaging the most according to claim 1 collimation body, it is characterised in that described hollow part is circular cone.
11. imaging according to claim 3 collimation bodies, it is characterised in that described hollow part is round platform.
12. collimate body according to the imaging described in any one of claim 1-11, it is characterised in that also set up in described stop body
There is at least one collimating aperture.
13. 1 kinds for the treatment of heads, it is characterised in that include radioactive source and the collimation of the imaging as described in any one of claim 1-12
Body, wherein, described radioactive source is positioned at the described stop body side away from described bottom surface.
14. treatment heads according to claim 13, it is characterised in that described treatment head also includes filtration layer, is used for changing
The intensity of the radiation beam that radioactive source sends and/or spectrum.
15. treatment heads according to claim 13, it is characterised in that described radioactive source is just to described hollow part.
16. treatment heads according to claim 13, it is characterised in that described stop body is cylinder, described block master
In the case of being additionally provided with at least one collimating aperture on body, described collimating aperture and described hollow part circle distribution are described block master
On body；
Staggering with described radioactive source in the axis of described stop body, described stop body is rotatable around described axis, so that
The lonizing radiation that send of described radioactive source are penetrated by described collimating aperture or are blocked by described stop body.
17. 1 kinds of therapeutic equipments, it is characterised in that include the treatment head described in any one of claim 13-16.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610440231.3A CN106110516A (en) | 2016-06-17 | 2016-06-17 | A kind of imaging collimation body, treatment head and therapeutic equipment |
| PCT/CN2017/088774 WO2017215659A1 (en) | 2016-06-17 | 2017-06-16 | Imaging collimator, treatment head, and treatment device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610440231.3A CN106110516A (en) | 2016-06-17 | 2016-06-17 | A kind of imaging collimation body, treatment head and therapeutic equipment |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017215659A1 (en) * | 2016-06-17 | 2017-12-21 | 深圳市奥沃医学新技术发展有限公司 | Imaging collimator, treatment head, and treatment device |
| CN107890612A (en) * | 2017-12-05 | 2018-04-10 | 西安大医数码科技有限公司 | One kind focuses on radiotheraphy device and equipment |
| CN113082559A (en) * | 2018-08-24 | 2021-07-09 | 西安大医集团股份有限公司 | Carrier source body, collimating body, radiation source device and radiotherapy system |
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Also Published As
| Publication number | Publication date |
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| WO2017215659A1 (en) | 2017-12-21 |
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