CN203763683U - Fine ray collimator - Google Patents
Fine ray collimator Download PDFInfo
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- CN203763683U CN203763683U CN201420136958.9U CN201420136958U CN203763683U CN 203763683 U CN203763683 U CN 203763683U CN 201420136958 U CN201420136958 U CN 201420136958U CN 203763683 U CN203763683 U CN 203763683U
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Abstract
The utility model relates to a fine ray collimator in the medical equipment field. The collimator is formed by a shell (1) and baffle blocks (2) fixed into the shell (1). A center of the baffle blocks (2) is processed with a through hole (3). The collimator is characterized in that the baffle blocks (2) are multistage structures; each stage of the baffle blocks (2) is in a cylindrical shape; a top is processed with an outer convex cone platform (4); a bottom is processed with an inner concave taper groove (5); the adjacent baffle blocks (2) form interstage cone positioning (6) through the inner concave taper groove (5) of a superior baffle block bottom and the outer convex cone platform (4) of an inferior baffle block top. In the prior art, it is difficult to process a fine ray collimator. By using the fine ray collimator of the utility model, the above defect is overcome. The provided fine ray collimator can collimate a high-energy X-ray below 1mm so that a precise radiotherapy system can carry out radiotherapy of a small target lesion. Simultaneously, compared to processing and installation of a collimation baffle block with a tiny aperture, the processing and installation of a collimation baffle block with a large diameter are easy.
Description
Affiliated technical field
This utility model relates to field of medical, is specially a kind of meticulous ray collimator.
Background technology
Noinvasive radiotherapy is one of important means of carrying out oncotherapy.Radiotherapy is that to radiate physics, radiobiology be basis, and the comprehensively general knowledge such as clinical, oncology, surgery, internal medicine, image is utilized the means of radiation cure disease, is mainly used to treat malignant tumor and some benign diseases.The object of tumour radiotherapy is the therapeutic dose to tumor target area maximum, and the exposure dose minimum that normal surrounding tissue and organ are subject to, to improve the Partial controll rate of tumor, reduces the complication of normal structure, namely pinpoint radiotherapy.Reach this object, carrying out radiotherapy when work, must accomplish " four essences ", be i.e. Precise Diagnosis, accurately design, accurately location and accurate treatment.Along with the arrival in accurate radiotherapy epoch, also there is great variety in radiotherapy apparatus in recent years, and the fineness of equipment obtains larger raising.Wherein, Chinese patent CN201310115139 disclosed " robot noinvasive radiotherapy system " is a kind of robot therapy system based on the guiding of six degree of freedom G arm realtime imaging.This system, under the guiding of G arm image, both can be carried out the conformal modulating radiotherapy of tumor, also has non-invasive therapy cardiovascular disease, and as atrial fibrillation, treatment kidney neuroregulation disease, as the ability of hypertension, diabetes etc." robot noinvasive radiotherapy system " is carrying out treating cardiovascular disease and kidney neuroregulation disease noinvasive radiocurable time, because the diameter of cardiovascular and kidney nerve only has several millimeters, the blood vessel that exists diameter to change from 1mm to 5mm such as renal artery pipe clump, in order to carry out accurate radiotherapy, reduce the infringement of critical tissue and organ around, high-energy X-ray beam need to be controlled to 0.1-0.5mm left and right.And prior art is mentioned all only for imaging system, the radiation source of imaging system belongs to the X-ray of mental retardation, γ light etc., and for radiocurable be all X-ray that energy is higher etc.In addition, the thickness of the absorbing material being used for the treatment of need to reach larger size, and such as for 6MVX light, absorbing material tungsten alloy, more than its thickness need to reach 600mm, could meet the clinical requirement of " robot noinvasive radiotherapy system ".But existing process technology processing diameter is less than 0.5mm, the absorbing material that length is greater than 600mm is the comparatively difficulty of meticulous ray collimator block of tungsten, lead etc.
Summary of the invention
The purpose of this utility model is to process the comparatively defect of difficulty of meticulous ray collimator block in order to overcome prior art, provide one high-energy X-ray can be collimated to below 1mm, meet accurate radiotherapy system and carry out the radiotherapy of little target area pathological changes, simultaneously the meticulous ray collimator of big L/D ratio micro-aperture block handling ease.
The purpose of this utility model is achieved through the following technical solutions:
Meticulous ray collimator of the present utility model is by shell (1) and be fixed on block (2) formation in shell (1), block (2) center is processed with through hole (3), it is characterized in that block (2) is multilevel hierarchy, blocks at different levels (2) are cylindrical, top is processed with evagination frustum (4), bottom is processed with interior concave cone groove (5), between adjacent blockers (2), forms inter-stage conical surface location (6) by the interior concave cone groove (5) of higher level's stop bottom and the evagination frustum (4) at subordinate's block top.
In such scheme, in described block (2), the block (2) of most end one-level, top is processed with evagination frustum (4), and bottom does not have interior concave cone groove.
In such scheme, the front end of described shell (1) is provided with the platform matching with the evagination frustum (4) at block (2) top, and first order block (2) is stuck in the front end of shell (1); Most end one-level block (2) is located by alignment pin (7) with shell (1) end, be connected by screw and be fixed in shell (1) end, or be fixed in shell (1) end by back-up ring (8), back-up ring (8) is connected with shell (1) end by screw thread.
In such scheme, the front end of described shell (1) is provided with ring flange (9), and ring flange (9) is connected with accelerator end.
In such scheme, described block (2) refers to 2 ~ 4 level structures for multilevel hierarchy.
In such scheme, the shape of the through hole (3) at described block (2) center, for a kind of or wherein combination of two kinds in cylindrical, prismatic and taper, through hole (3) end diameter at previous stage block (2) center is more than or equal to the point diameter of the through hole (3) at next stage block (2) center.
Meticulous ray collimator of the present utility model adopts the design of multistage block, big L/D ratio block is divided into the multistage block of the conical surface location that adopts high-axiality, high-energy X-ray can be collimated to below 1mm, meet accurate radiotherapy system and carry out the radiotherapy of little target area pathological changes, overcome the problem that collimates block processing difficulties in big L/D ratio micro-aperture collimator simultaneously.The conical surface location of high-axiality is installed easily multistage block, can guarantee that the multilevel center through hole of 0.1mm is aligned with each other.
To sum up, meticulous ray collimator of the present utility model has overcome prior art and has processed the comparatively defect of difficulty of meticulous ray collimator, the meticulous ray collimator providing can be collimated to high-energy X-ray below 1mm, meet accurate radiotherapy system and carry out the radiotherapy of little target area pathological changes, the collimation block of big L/D ratio micro-aperture processing simultaneously and installation are easily.
Brief description of the drawings
Fig. 1 is the schematic diagram of utility model.
Fig. 2 is block schematic diagram of the present utility model.
Fig. 3 is block schematic perspective view of the present utility model.
Fig. 4 is schematic perspective view of the present utility model.
Fig. 5 is the schematic perspective view that this utility model is added with flange.
Fig. 6 is the schematic diagram of this utility model embodiment bis-.
Fig. 7 is the schematic diagram of this utility model embodiment tetra-.
In accompanying drawing, 1: shell; 2: block; 3: through hole; 4: evagination frustum; 5: interior concave cone groove; 6: inter-stage conical surface location; 7: alignment pin; 8: back-up ring; 9: ring flange.
Specific embodiment
Be described in further detail this utility model below in conjunction with drawings and Examples, but this utility model is not limited only to described embodiment.
Embodiment mono-
The meticulous ray collimator of this example as shown in Figure 1, Figure 2, shown in Fig. 3, Fig. 4 and Fig. 5, formed by shell 1 and the block 2 being fixed in shell 1, block 2 centers are processed with through hole 3, it is characterized in that block 2 is for secondary structure, blocks 2 at different levels are cylindrical, top is processed with evagination frustum 4, and bottom is processed with interior concave cone groove 5, between adjacent blockers 2, forms inter-stage conical surface location 6 by the interior concave cone groove 5 of higher level's stop bottom and the evagination frustum 4 at subordinate's block top.
The block 2 of most end one-level, top is processed with evagination frustum 4, and bottom does not have interior concave cone groove.
The front end of shell 1 is provided with the platform matching with the evagination frustum 4 at block 2 tops, and first order block 2 is stuck in the front end of shell 1; Most end one-level block 2 is located by alignment pin 7 with shell 1 end, is connected by screw and is fixed in shell 1 end, or be fixed in shell 1 end by back-up ring 8, and back-up ring 8 is connected with shell 1 end by screw thread.
The front end of shell 1 is provided with ring flange 9, and ring flange 9 is connected with accelerator end.
The shape of the through hole 3 at block 2 centers, for cylindrical, through hole 3 end diameters at previous stage block 2 centers equal the point diameter of the through hole 3 at next stage block 2 centers.
Block 2 is made up of ray absorbent material.
Ray absorbent material is tungsten alloy material.
Embodiment bis-
As shown in Figure 6, except block 2 is tertiary structure, all the other are with embodiment mono-for the meticulous ray collimator of this example.
Embodiment tri-
The meticulous ray collimator of this example except block 2 be quarternary structure, all the other are with embodiment mono-.
Embodiment tetra-
The meticulous ray collimator of this example as shown in Figure 7, removes the shape of the through hole 3 at block 2 centers, and outside the combination for cylindrical and taper, all the other are with embodiment bis-.
Embodiment five
The meticulous ray collimator of this example is except the shape of the through hole 3 at block 2 centers, and outside four prism type, all the other are with embodiment mono-.
Embodiment six
The meticulous ray collimator of this example is except the taper that is shaped as of the through hole 3 at block 2 centers, and through hole 3 end diameters at previous stage block 2 centers are greater than outside the point diameter of through hole 3 at next stage block 2 centers, and all the other are with embodiment mono-.
Claims (6)
1. a meticulous ray collimator, formed by shell (1) and the block (2) that is fixed in shell (1), block (2) center is processed with through hole (3), it is characterized in that block (2) is multilevel hierarchy, blocks at different levels (2) are cylindrical, top is processed with evagination frustum (4), and bottom is processed with interior concave cone groove (5), between adjacent blockers (2), forms inter-stage conical surface location (6) by the interior concave cone groove (5) of higher level's stop bottom and the evagination frustum (4) at subordinate's block top.
2. meticulous ray collimator according to claim 1, is characterized in that in described block (2), the block (2) of most end one-level, and top is processed with evagination frustum (4), and bottom does not have interior concave cone groove.
3. meticulous ray collimator according to claim 1, is characterized in that the front end of described shell (1) is provided with the platform matching with the evagination frustum (4) at block (2) top, and first order block (2) is stuck in the front end of shell (1); Most end one-level block (2) is located by alignment pin (7) with shell (1) end, be connected by screw and be fixed in shell (1) end, or be fixed in shell (1) end by back-up ring (8), back-up ring (8) is connected with shell (1) end by screw thread.
4. meticulous ray collimator according to claim 1, is characterized in that the front end of described shell (1) is provided with ring flange (9), and ring flange (9) is connected with accelerator end.
5. meticulous ray collimator according to claim 1, is characterized in that described block (2) refers to 2 ~ 4 level structures for multilevel hierarchy.
6. meticulous ray collimator according to claim 1, it is characterized in that the shape of the through hole (3) at described block (2) center, for a kind of or wherein combination of two kinds in cylindrical, prismatic and taper, through hole (3) end diameter at previous stage block (2) center is more than or equal to the point diameter of the through hole (3) at next stage block (2) center.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420136958.9U CN203763683U (en) | 2014-03-25 | 2014-03-25 | Fine ray collimator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420136958.9U CN203763683U (en) | 2014-03-25 | 2014-03-25 | Fine ray collimator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203763683U true CN203763683U (en) | 2014-08-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420136958.9U Expired - Fee Related CN203763683U (en) | 2014-03-25 | 2014-03-25 | Fine ray collimator |
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| Country | Link |
|---|---|
| CN (1) | CN203763683U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112786231A (en) * | 2021-01-05 | 2021-05-11 | 中国原子能科学研究院 | Diaphragm structure and proton beam irradiation device |
-
2014
- 2014-03-25 CN CN201420136958.9U patent/CN203763683U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112786231A (en) * | 2021-01-05 | 2021-05-11 | 中国原子能科学研究院 | Diaphragm structure and proton beam irradiation device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: WU DAKE Free format text: FORMER OWNER: CHENGDU WEIMING TECHNOLOGY CO., LTD. Effective date: 20140930 Owner name: YAO JIN WEI CHONGGAO Effective date: 20140930 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 610000 CHENGDU, SICHUAN PROVINCE TO: 610041 CHENGDU, SICHUAN PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20140930 Address after: 2 610041 yuan 7, Section 8, No. four, No. 55, South Renmin Road, Chengdu, Sichuan, Wuhou District Patentee after: Wu Dake Patentee after: Yao Jin Patentee after: Wei Chonggao Address before: 108, room 6, building 1480, hi tech incubator Park, north section of Tianfu Road, Chengdu hi tech Zone, Sichuan, 610000 Patentee before: Chengdu Weiming Technology Co., Ltd. |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180202 Address after: Pixian 611730 Sichuan city of Chengdu province Chengdu modern industrial port area benevolence Port Road No. 128 Patentee after: Rui Dima medical science and technology company limited Address before: 2 610041 yuan 7, Section 8, No. four, No. 55, South Renmin Road, Chengdu, Sichuan, Wuhou District Co-patentee before: Yao Jin Patentee before: Wu Dake Co-patentee before: Wei Chonggao |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140813 Termination date: 20200325 |