CN205964716U - High accuracy combination formula gamma knife collimation body - Google Patents
High accuracy combination formula gamma knife collimation body Download PDFInfo
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- CN205964716U CN205964716U CN201620513732.5U CN201620513732U CN205964716U CN 205964716 U CN205964716 U CN 205964716U CN 201620513732 U CN201620513732 U CN 201620513732U CN 205964716 U CN205964716 U CN 205964716U
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- ring
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- middle ring
- collimater
- gamma knife
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Abstract
The utility model discloses a high accuracy combination formula gamma knife collimation body, holding ring under last holding ring, middle ring sum, the body group is cut apart by a plurality of to middle ring, and a plurality of annulus of cutting apart forms ring in the middle of annular to the block mount, and the body of cutting apart of middle ring is gone up the design and is had a plurality of collimater holes, and the collimater hole is annular arrangement on the ring of centre, sets up a plurality of shield openings of answering with the collimater pore pair on cutting apart body edge, goes up the holding ring and installs suitable for reading at the centre ring, and the end opening at the centre ring is installed to lower holding ring. The utility model discloses a components of a whole that can function independently scheme reduces the collimation body processing degree of difficulty itself, improves the precision of collimation body part and the surface quality in collimater hole greatly, and the requirement of degree of focus is ensured to the detection error of reducing the product.
Description
Technical field
This utility model is related to field of medical device, and specifically a kind of high accuracy combination type gamma knife collimates body.
Background technology
Domestic gamma knife generally adopts foundry goods as collimation body material, adds other essences, carries out antirust；Product is from material
There is problems with four aspects such as material, processing, precision, detection；
1）Collimation body wall thickness is thicker, and casting flaw cannot avoid；Because product is semi-spherical shape, there is limitation, no in flaw detection
Method is comprehensive to be gone out to report；
2）Foundry goods processing characteristics itself is bad, and part hemisphere surface has tens to one hundred many collimator holes, Zhi Nengyong
Special purpose machine tool and five-axis machine tool processing, using conventional machining process such as brill, boring, hinges in technique, are extremely difficult to high-quality, Gao Pin
Matter, high-precision hole；Process also extremely difficult, cost is also high simultaneously；
3）The collimator holes that traditional handicraft is worked it out, in the hole have step, taper, ellipse, cross cut, irregular etc., hole
Surface is drawn trace, is crossed and cut, and relatively rough, the precision of collimator holes can not ensure, degree of focus is typically in S 0.3-0.5mm.
4）Collimator holes vary, and check bar must be done a lot；The surface quality in hole is very poor, and check bar is easy to damage；Hole
There are the defects such as step, ellipse, measurement error is had a significant impact it is impossible to truly reflect the practical situation in hole.
Utility model content
The purpose of this utility model is to provide a kind of solution production and testing error, reduces difficulty of processing, improves product
Precision, improve using curative effect high accuracy combination type gamma knife collimate body, with solve the problems, such as in above-mentioned background technology propose.
For achieving the above object, this utility model provides following technical scheme：
A kind of high accuracy combination type gamma knife collimates body, including upper locating ring, middle ring and lower locating ring, described middle ring
It is made up of multiple dividing bodies, and the combination of multiple dividing body ring is assembled to form the middle ring of ring-type, the dividing body of described middle ring
On be designed with multiple collimator holes, and collimator holes annularly arrange on middle ring, dividing body edge offers and collimates
The corresponding shield opening in device hole, described upper locating ring is arranged on the suitable for reading of middle ring, and described lower locating ring is arranged under middle ring
Mouthful.
As further program of the utility model：Described collimation body is by upper locating ring, middle ring and lower positioning ring group
Conjunction forms.
As this utility model further scheme：Described dividing body assembling docking using shield opening docking or shields
Panel docks.
Degree of focus requires S 0.1 to refer to：Sphere is all, and to install the collimator holes axis and benchmark axially bored line center that crosses necessary
It is inclusive in theoretical center point for the ball of a diameter of 0.1mm of the centre of sphere.
Collimator holes axis：The centripetal hole of collimation body Surface Machining, for installing collimator.
Benchmark axially bored line：Collimation body reference for installation itself.
Shield opening refers to：It is used for loading the hole used by shielding rod, shielding rod effect is shielding radioactive substance.
Collimator holes refer to：It is used for loading the hole used by collimator, collimator effect is guiding radioactive substance.
Compared with prior art, the beneficial effects of the utility model are：
1st, within the focusing accuracy of raising collimation body reaches S 0.1；Ensure product quality.
2nd, reduce the use of special lathe, improve the rate that comes into force；
3rd, product is to split structure, improves machining accuracy and reduces difficulty of processing, because part is less, it is possible to use little is high-precision
Degree process equipment just can complete processing it is not necessary to use special lathe；
4th, because part is little, interiors of products defect can be reduced using being suitable for processing, the sheet material of good processability and forging；
If 5 Product checking are problematic can reduce scrappage with local replacing；
6th, processing cost, improve production efficiency are saved；
7th, improve radiotherapy apparatus treatment precision, and then improve radiotherapeutic effect.
8th, adopt split scheme, reduce collimation body difficulty of processing itself, greatly improve precision and the hole of collimation body part
Surface quality, reduces the detection error of product it is ensured that degree of focus requires S 0.1.
Brief description
Fig. 1 is the structural representation that high accuracy combination type gamma knife collimates body.
Fig. 2 is the schematic diagram of the dividing body of perforate.
Fig. 3 is the schematic diagram of the dividing body after perforate.
In figure：The upper locating ring of 1-；Ring in the middle of 2-；20- shield opening；21- dividing body；22- collimator holes；Locating ring under 3-.
Specific embodiment
Below in conjunction with the accompanying drawing in this utility model embodiment, the technical scheme in this utility model embodiment is carried out
Clearly and completely description is it is clear that described embodiment is only a part of embodiment of this utility model rather than whole
Embodiment.Based on the embodiment in this utility model, those of ordinary skill in the art are not under the premise of making creative work
The every other embodiment being obtained, broadly falls into the scope of this utility model protection.
Refer to Fig. 1～3, in this utility model embodiment, a kind of high accuracy combination type gamma knife collimates body, including on fixed
Position ring 1, middle ring 2 and lower locating ring 3, middle ring 2 is made up of multiple dividing bodies 21, and the combination assembling of multiple dividing body 21 ring
Form the middle ring 2 of ring-type, the back cut diameter of middle ring 2 is more than lower port diameter, the dividing body 21 of middle ring 2 offers multiple
Collimator holes 22, and collimator holes 22 annularly arrange on middle ring, and dividing body 21 edge offers and collimator holes 22
Corresponding shield opening 20, shield opening 20 combination on adjacent dividing body 21 forms a complete circular hole, and upper locating ring 1 is installed
Suitable for reading in middle ring 2, lower locating ring 3 is arranged on the lower mouth of middle ring 1.
The material of upper locating ring 1, middle ring 2 and lower locating ring 3 is carbon steel or steel alloy.
Using one of the following two kinds mode, one kind is using in shield opening 20 position for the assembling docking of all dividing bodies 21
Docking, a kind of employing in shield opening 20 position shields panel docking.
The procedure of processing that high accuracy combination type gamma knife collimates body is as follows：
（1）Dividing body designs, and carries out three-dimensional segmentation to middle ring, cuts into dividing body；
（2）Carbon steel or steel alloy are selected according to specific requirement, dividing body is carried out with heat treatment, remove internal stress；Material
Using steel or the forging of good processability, inherently can improve the crudy of endoporus, reach Ra0.4-Ra0.6；
（3）Dividing body is carried out with roughed surface, flaw detection, and provide correlation report；
（4）Carry out polish using precision optical machinery to dividing body to be processed, machining benchmark, and positioning collimator holes；
（5）All collimator holes on processing dividing body, using silk thread cutting technique of being careful, the surface smoothness of collimator holes reaches
To Ra0.4-Ra0.8, the diameter of collimator holes reaches H7 tolerance；
（6）Measure the degree of focus of collimator holes on dividing body using projector, within the requirement S 0.05mm of degree of focus；
（7）The accurate dividing body of assembling, according to positioning datum and mark, is assembled in order；
（8）It is inserted into check bar in collimator holes, the precision of check bar dimensional tolerance control ± 0.002mm, by measurement error
Littleization, with three Coordinates degree of focus, within degree of focus requires S 0.1mm, and provides measurement report；
（9）Surface antirust treatment is carried out to the collimation body assembling, warehouse-in.
It is obvious to a person skilled in the art that this utility model is not limited to the details of above-mentioned one exemplary embodiment, and
And in the case of without departing substantially from spirit or essential attributes of the present utility model, this practicality can be realized in other specific forms new
Type.Therefore, no matter from the point of view of which point, embodiment all should be regarded as exemplary, and be nonrestrictive, this practicality is new
The scope of type is limited by claims rather than described above, it is intended that the containing of equivalency that will fall in claim
All changes in justice and scope are included in this utility model.Any reference in claim should not be considered as limiting
Involved claim.
Claims (3)
1. a kind of high accuracy combination type gamma knife collimates body, include upper locating ring, centre ring and lower locating ring it is characterised in that
Described middle ring is made up of multiple dividing bodies, and the combination of multiple dividing body ring is assembled to form the middle ring of ring-type, described centre
It is designed with multiple collimator holes on the dividing body of ring, and collimator holes annularly arrange on middle ring, dividing body is opened on edge
It is provided with multiple shield openings corresponding with collimator holes, described upper locating ring is arranged on the suitable for reading of middle ring, described lower locating ring peace
It is contained in the lower mouth of middle ring.
2. high accuracy combination type gamma knife collimation body according to claim 1 is it is characterised in that described collimation body is by upper
Locating ring, middle ring and lower locating ring combine.
3. high accuracy combination type gamma knife according to claim 1 collimates body it is characterised in that described dividing body assembles
Docking is using shield opening docking or shielding panel docking.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620513732.5U CN205964716U (en) | 2016-05-31 | 2016-05-31 | High accuracy combination formula gamma knife collimation body |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620513732.5U CN205964716U (en) | 2016-05-31 | 2016-05-31 | High accuracy combination formula gamma knife collimation body |
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| Publication Number | Publication Date |
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| CN205964716U true CN205964716U (en) | 2017-02-22 |
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ID=58020205
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| Application Number | Title | Priority Date | Filing Date |
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| CN201620513732.5U Active CN205964716U (en) | 2016-05-31 | 2016-05-31 | High accuracy combination formula gamma knife collimation body |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105854192A (en) * | 2016-05-31 | 2016-08-17 | 武汉瑞祥安精密制造有限责任公司 | High-precision combined type gamma knife collimator and machining method therefore |
-
2016
- 2016-05-31 CN CN201620513732.5U patent/CN205964716U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105854192A (en) * | 2016-05-31 | 2016-08-17 | 武汉瑞祥安精密制造有限责任公司 | High-precision combined type gamma knife collimator and machining method therefore |
| CN105854192B (en) * | 2016-05-31 | 2022-08-23 | 武汉瑞祥安精密制造有限责任公司 | High-precision combined gamma knife collimating body and processing method thereof |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 436032, Hubei, Gedian Ezhou Development Zone, Pioneer Road, commercial control, China top industrial park, No. 16-2 Patentee after: Wuhan Ruixiang an Polytron Technologies Inc Address before: 436000 Gedian Hubei Development Zone Ezhou Pioneer Road commercial control Hua top industrial park, 16-2# Patentee before: Wuhan Ruixiangan Precision Manufacturing Co.,Ltd. |