CN1817385A - Radiant device for sliding and replacing integrated multiple collimator - Google Patents
Radiant device for sliding and replacing integrated multiple collimator Download PDFInfo
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- CN1817385A CN1817385A CN 200610049691 CN200610049691A CN1817385A CN 1817385 A CN1817385 A CN 1817385A CN 200610049691 CN200610049691 CN 200610049691 CN 200610049691 A CN200610049691 A CN 200610049691A CN 1817385 A CN1817385 A CN 1817385A
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- collimator
- slide block
- primary
- case lid
- primary collimator
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Abstract
A radiation device able to exchange the integrated multiple collimators by translation is composed of case and its cover, upper and lower shielding plates, the radiation source, primary collimator and secondary collimator, which are installed in the recess of upper shielding plate, two guide tracks, slide block sliding on said guide tracks and with a rectangular window for arranging more than two secondary collimators in it, leading screw and its nut, and motor. The one of secondary collimator can be easily aligned with the primary one.
Description
Technical field
The present invention relates to radiate the treatment field, especially relate to the radiation appliance of incorporate a plurality of collimator sliding and replacings.
Background technology
Gamma ray therapeutic apparatus will reach the purpose of effective kill tumor cell, requires the gamma ray of the radiation appliance emission of equipment can control the size of beam diameter, and certain close rate is arranged when arriving lesions position.So radiation appliance is the core component of gamma ray therapeutic apparatus.The method of the beam diameter size of the gamma ray that radiation appliance control is launched normally adopts the collimator of changing different pore sizes, comes the gamma ray of outside, radiation-screening hole.Utilize the artificial collimator of changing, both taken muscle power, time, again operator are caused x radiation x danger.On collimator, reserve the collimating aperture of several groups of different-diameter sizes, utilize the motor-driven collimator, allow one group of collimating aperture and radioactive source formation gamma ray path of work.The frame for movement of this radiation appliance mostly is dome shape, and is bulky, heavy.And be stored in the collimator storehouse with flat collimator, exchanging automatically during treatment, this just need set up the collimator storehouse and adopt mechanical hand to come the pick-and-place collimator, and the replacing time is longer, and system accuracy is had relatively high expectations.
Summary of the invention
The object of the present invention is to provide the radiation appliance of incorporate a plurality of collimator sliding and replacings.
The technical solution adopted for the present invention to solve the technical problems is:
In casing, from bottom to top be equipped with successively flat following shielding slab, spill on shielding slab and orthogonal case lid, the radioactive source body from bottom to top is installed successively, by quiet example of primary collimator and secondary collimator of forming with the example of primary collimator motion block of example of primary collimator in the groove of last shielding slab.It is characterized in that: two guide rails are fixed on the minor face both sides of rectangle case lid, and two guide rails are slidingly connected with the middle slide block that has slot, and the secondary collimator in different apertures more than two is installed in the slot of slide block; The one side fixed installation feed screw nut of slide block, feed screw nut is formed the turn-screw pair with the leading screw that is contained in case lid one side, leading screw is fixedlyed connected with belt wheel, belt wheel links to each other with motor by being with synchronously, slide block can along two guide rails with respect to case lid be the Y of radiation appliance to moving, the hole of any one secondary collimator in the secondary collimator in different apertures more than two of installing in the slot of slide block is aimed at the focal aperture that radioactive source body, quiet of example of primary collimator and example of primary collimator motion block form.
Gamma ray radiator of the present invention is combined into one gamma-ray source, shielding slab, automatic switch over example of primary collimator, automatic switch type secondary collimator etc., example of primary collimator and secondary collimator are independently controlled the function of finishing respectively separately, the example of primary collimator major function is the switch radiographic source, and secondary collimator forms the gamma ray irradiation field.
The present invention has the collimator of five different pore sizes to lie in together, be installed on the slide block that an energy translation moves, motor is by the transmission mechanism control slide block movement, select the hole of a collimator of requirement to aim at, form the gamma ray bundle that requires diameter with the focal aperture that radioactive source body, quiet of example of primary collimator and example of primary collimator motion block form.Secondary collimator can standby how different apertures collimator, change to apparatus for automatic change by hand and get on.
The useful effect that the present invention has is:
The invention has the advantages that with the collimator that can select different apertures more than two in once treating realize changing automatically real-time, the replacing time was less than six seconds.A plurality of collimator parallel-moving types are changed, and make the radiation appliance designs simplification, weight saving, and cost reduces.
Description of drawings
Fig. 1 is the front view of background radiation device;
Fig. 2 is the vertical view of background radiation device;
Fig. 3 is the right view of background radiation device.
Among the figure: 1-casing, shielding slab under the 2-, 3-radioactive source body, the last shielding slab of 4-, quiet of 5-example of primary collimator, 6-example of primary collimator motion block, the 7-secondary collimator, the 8-slide block, the 9-motor, 10-is with synchronously, the 11-belt wheel, the 12-leading screw, the 13-feed screw nut, the 14-guide rail, 15-is accurate drive mechanism just, the 16-case lid.
The specific embodiment
The invention will be further described below in conjunction with drawings and Examples.
As Fig. 1, Fig. 2, shown in Figure 3, present invention resides in last shielding slab 4 and orthogonal case lid 16 that flat following shielding slab 2, spill from bottom to top are housed in the casing 1 successively, the example of primary collimator and the secondary collimator 7 that radioactive source body 3 from bottom to top are installed in the groove of last shielding slab 4 successively, form by quiet 5 of example of primary collimator and example of primary collimator motion block 6.Two guide rails 14 are fixed on the minor face both sides of rectangle case lid 16, and two guide rails 14 are slidingly connected with the middle slide block 8 that has slot, and the secondary collimator 7 in different apertures more than two is installed in the slot of slide block 8; The one side fixed installation feed screw nut 13 of slide block 8, feed screw nut 13 is formed the turn-screw pairs with the leading screw 12 that is contained in case lid 16 1 sides, leading screw 12 is fixedlyed connected with belt wheel 11, belt wheel 11 is by being with 10 to link to each other with motor 9 synchronously, slide block 8 can along two guide rails 14 with respect to case lid 16 be the Y of radiation appliance to moving, the hole of any one secondary collimator 7 in the secondary collimator 7 in different apertures more than two of installing in the slot of slide block 8 is aimed at the focal aperture that radioactive source body 3, quiet 5 of example of primary collimator and example of primary collimator motion block 6 form.
Described more than two the secondary collimator 7 in different apertures be five.
Work process of the present invention is as follows:
At ordinary times, the concavo-convex groove face of quiet 5 of example of primary collimator and example of primary collimator motion block 6 is closely interlock mutually, and the gamma ray of radioactive source body 3 emissions is closed by example of primary collimator.
Start working, motor 9 by be with 10 synchronously, belt wheel 11 drives leading screws 12 rotations, leading screw 12 is made Y along two guide rails 14 with respect to radiation appliance by feed screw nut 13 drive slide blocks 8 and is moved to translation, it is punctual that the secondary collimator 7 of the pore size of a requirement of installing on slide block 8 moves to the focal aperture and 3 pairs of the radioactive source bodies of example of primary collimator, and motor 9 quits work.
Then, example of primary collimator motion block 6 is driven by first accurate drive mechanism 15, with respect to quiet 5 translational motion of example of primary collimator (detailed work process can be 2004100257661 patent application with reference to the inventor's application number), the concavo-convex groove face of open example of primary collimator quiet 5 and example of primary collimator motion block 6 forms the example of primary collimator passage of the gamma ray of radioactive source body 3.
At this moment, the gamma ray that radioactive source body 3 sends can carry out radiotherapy to the patient's tumor focus by the passage of example of primary collimator and the hole of secondary collimator 7.Change the secondary collimator 7 of different pore sizes, can change the size of the energy of gamma ray output, realize the treatment of various dose gamma ray.
Claims (2)
1, the radiation appliance of incorporate a plurality of collimator sliding and replacings, the last shielding slab (4) and the orthogonal case lid (16) of flat following shielding slab (2), spill from bottom to top are housed successively, the example of primary collimator and the secondary collimator (7) that radioactive source body (3) from bottom to top are installed in the groove of last shielding slab (4) successively, form by example of primary collimator quiet (5) and example of primary collimator motion block (6) in casing (1); It is characterized in that: two guide rails (14) are fixed on the minor face both sides of rectangle case lid (16), two guide rails (14) are slidingly connected with the middle slide block (8) that has slot, and the secondary collimator (7) in different apertures more than two is installed in the slot of slide block (8); The one side fixed installation feed screw nut (13) of slide block (8), feed screw nut (13) and the leading screw (12) that is contained in case lid (16) one sides are formed the turn-screw pair, leading screw (12) is fixedlyed connected with belt wheel (11), belt wheel (11) links to each other with motor (9) by being with (10) synchronously, slide block (8) can along two guide rails (14) with respect to case lid (16) be the Y of radiation appliance to motion, make the hole and the radioactive source body (3) of any one secondary collimator (7) in the secondary collimator (7) in different apertures more than two of installing in the slot of slide block (8), the focal aperture that example of primary collimator quiet (5) and example of primary collimator motion block (6) form is aimed at.
2, the radiation appliance of incorporate a plurality of collimator sliding and replacings according to claim 1 is characterized in that: described more than two the secondary collimator (7) in different apertures be five.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610049691 CN1817385A (en) | 2006-03-03 | 2006-03-03 | Radiant device for sliding and replacing integrated multiple collimator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610049691 CN1817385A (en) | 2006-03-03 | 2006-03-03 | Radiant device for sliding and replacing integrated multiple collimator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1817385A true CN1817385A (en) | 2006-08-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200610049691 Pending CN1817385A (en) | 2006-03-03 | 2006-03-03 | Radiant device for sliding and replacing integrated multiple collimator |
Country Status (1)
| Country | Link |
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| CN (1) | CN1817385A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102332318A (en) * | 2011-07-18 | 2012-01-25 | 中国原子能科学研究院 | First collimator adjusting device of neutron texture diffractometer |
| CN103027697A (en) * | 2011-09-30 | 2013-04-10 | Ge医疗***环球技术有限公司 | Collimator changing vehicle for changing collimators in detector |
| CN103027697B (en) * | 2011-09-30 | 2016-11-30 | Ge医疗***环球技术有限公司 | More change trains for changing the collimator of the collimator in detector |
| CN107773853A (en) * | 2017-11-30 | 2018-03-09 | 上海联影医疗科技有限公司 | A kind of linear accelerator system |
-
2006
- 2006-03-03 CN CN 200610049691 patent/CN1817385A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102332318A (en) * | 2011-07-18 | 2012-01-25 | 中国原子能科学研究院 | First collimator adjusting device of neutron texture diffractometer |
| CN103027697A (en) * | 2011-09-30 | 2013-04-10 | Ge医疗***环球技术有限公司 | Collimator changing vehicle for changing collimators in detector |
| CN103027697B (en) * | 2011-09-30 | 2016-11-30 | Ge医疗***环球技术有限公司 | More change trains for changing the collimator of the collimator in detector |
| CN107773853A (en) * | 2017-11-30 | 2018-03-09 | 上海联影医疗科技有限公司 | A kind of linear accelerator system |
| CN107773853B (en) * | 2017-11-30 | 2022-02-15 | 上海联影医疗科技股份有限公司 | Linear accelerator system |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |