CN2533895Y - Radioactive rays screen door - Google Patents
Radioactive rays screen door Download PDFInfo
- Publication number
- CN2533895Y CN2533895Y CN 02228922 CN02228922U CN2533895Y CN 2533895 Y CN2533895 Y CN 2533895Y CN 02228922 CN02228922 CN 02228922 CN 02228922 U CN02228922 U CN 02228922U CN 2533895 Y CN2533895 Y CN 2533895Y
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- shield door
- shielding door
- radiation
- straight line
- utility
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Abstract
The utility model discloses a radiation shielding door that can automatically open and close which is used to carry out radiation protection for the radioactive source, and is particularly suitable for the shielding of the remaining radiation when each single-source blocks under the state of non-treatment of the gamma knife. The radiation shielding door comprises a left shielding door and a right shielding door positioned on the ray outlet of the radiotherapy machine, and is provided with a straight line guide that is matched with a slider on the machine body of the radiotherapy machine, and the drive system positioned on the radiotherapy machine drives the straight line to open and close. The closing combined position of the left shielding door and the right shielding door can be provided with a sawtooth structure; the drive system can be formed by a stepper motor, a worm gear mechanism, a bevel gear mechanism and a rack and spur gear mechanism that are sequentially connected, and drives the straight line of the shielding door to open and close. The utility model has the advantages of compact structure, reliable shielding, convenient for use and guarantees the radiation protection demands of the radiotherapy machine.
Description
Technical field
This utility model relates to a kind of parts of armarium, specifically a kind of lonizing radiation shield door.It can be applicable on gamma ray such as vertical, horizontal or other energy beam therapy apparatuss, especially is fit to gamma knife remaining stray radiation after each single source obturation under the non-therapeutic state is shielded.
Background technology
The teleradiotherapy facility that employing such as cobalt-60 treating machines, gamma knife radiosiotope is made radioactive source have the painful advantage such as little, easy to use of strong, economic reliable, the patient of ray penetration power and tumor-killing power, are the strong instruments of oncotherapy.But owing to adopt strong radiation source, its radiation can not be cut off by outage as accelerator, can only adopt the method that adds dielectric shielding to protect.As shield improperly, radiation leakage is bigger, will to patient, medical personnel and on every side other staff damage.The strong radiation source therapy apparatus generally adopts thickening medium and closed shield structure on non-orientation treatment, protect comparatively reliable.But on orientation treatment,, can not adopt hermetically-sealed construction, under non-therapeutic state, all use light chopper that ray is blocked, unavoidably have the small part ray and spill for carrying out irradiation treatment.These stray radiations can damage medical personnel and other people member who works around for a long time.Gamma knife particularly, because the radioactive source number is many, complex structure causes that the factor of radiation leakage is many, the probability that its stray radiation works the mischief is bigger.Existing gamma knife generally uses light chopper to cut off lonizing radiation under non-therapeutic state, and shielding is not effectively protected to the stray radiation on the orientation treatment.
Summary of the invention
This utility model purpose is to provide the lonizing radiation shield door of the automatic folding of a kind of energy, and it can shield theratrons such as gamma knife remaining stray radiation after each single source obturation under the non-therapeutic state effectively, reduces to its radiation level minimum.
For realizing above-mentioned utility model purpose, the lonizing radiation shield door is made of the left and right shield door that is positioned at theratron ray exit, which is provided with and be positioned at the line slideway that the slide block on the theratron body is complementary, and drive the straight line folding by the drive system that is positioned on the theratron body.
As improvement of the present utility model, the left and right shield door of lonizing radiation shield door is closed the junction design broached-tooth design.
Above-mentioned drive system can be made of the motor, worm-and-wheel gear, bevel gear mechanism and the pinion and rack that link to each other successively, and drives the folding of shield door straight line.
This utility model is primarily aimed at the gamma knife design, can effectively reduce the stray radiation of gamma knife under non-therapeutic state, has improved the radiation protection level of gamma knife.Be applied on the full length gamma cutter at present, obtained good effect.This utility model also may be used on other kind theratron radiation shields.In a word, this utility model compact conformation, shielding is reliable, and is easy to use, guaranteed the radioprotective requirement of theratron.
Description of drawings
The utility model is described in further detail below in conjunction with drawings and Examples.
Fig. 1 is a structure principle chart of the present utility model;
Fig. 2 is the shield door structure chart of an embodiment of the present utility model, (a) is the shield door structure, (b) is the broached-tooth design of shield door junction, the left and right sides.
Fig. 3 is the driving system structure figure of an embodiment of the present utility model.
The specific embodiment
Structure principle chart of the present utility model as shown in Figure 1, left shield door 3 and right shield door 5 are positioned at the ray exit of theratron 4, are used to seal the irradiation chamber.On the left and right shield door 3 and 5 line slideway 2 is housed, it is complementary with the slide block 1 that is positioned on the theratron body 4, the left and right shield door 3 of drive systems and 5 carries out the straight line open and close movement along slide block 1, and block 6 is used for adjusting and restriction shield door extreme sport position.
Fig. 2 is a kind of specific embodiment of the present utility model, and shield door adopts cast iron to irritate lead material, and left shield door, right shield door 3 and 5 hang on the theratron body 4, and line slideway 2 is installed on it.Drive system is made of motor 10, worm-and-wheel gear 11, bevel gear mechanism 13 and pinion and rack 7, motor 10 is by worm and gear structure 11 like this, through universal drive shaft 12,12 ' and bevel gear structure 13 transfer torque to gear ﹠ rack structure 7, the tooth bar of gear ﹠ rack structure 7 is installed on the shield door, be driven gear driven and carry out open and close movement, and drive the folding of shield door straight line.Drive system can be furnished with manual structure 14, in order to guarantee in particular cases manual folding shield doors such as outage, accident.
For further reducing the possibility of radiation leakage, can be provided with broached-tooth design 8 and 9 at left and right shield door 3 and 5 junctions, hatching place material is a cast iron, blank is filled with lead therebetween.
Claims (3)
1. lonizing radiation shield door, constitute by the left and right shield door that is positioned at theratron ray exit (3,5), it is characterized in that: described left and right shield door (3,5) is provided with and is positioned at the line slideway (2) that the slide block (1) on the theratron body is complementary, and drives the straight line folding by the drive system that is positioned on the theratron body.
2. lonizing radiation shield door according to claim 1 is characterized in that: the junction of closing of left and right shield door (3,5) is provided with broached-tooth design (8,9).
3. lonizing radiation shield door according to claim 1 and 2, it is characterized in that: described drive system is made of the motor (10) that links to each other successively, worm-and-wheel gear (11), bevel gear mechanism (13) and pinion and rack (7), and drives the folding of shield door straight line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02228922 CN2533895Y (en) | 2002-04-03 | 2002-04-03 | Radioactive rays screen door |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02228922 CN2533895Y (en) | 2002-04-03 | 2002-04-03 | Radioactive rays screen door |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2533895Y true CN2533895Y (en) | 2003-02-05 |
Family
ID=33705358
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02228922 Expired - Fee Related CN2533895Y (en) | 2002-04-03 | 2002-04-03 | Radioactive rays screen door |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2533895Y (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1303614C (en) * | 2004-12-17 | 2007-03-07 | 清华大学 | Shaftless rotary gate for nuclear reactor experimental hole shielding |
| CN102485281A (en) * | 2010-12-03 | 2012-06-06 | 深圳市华科核医疗技术有限公司 | Medical irradiation device |
| CN104080516A (en) * | 2011-12-02 | 2014-10-01 | 瓦里安医疗系统公司 | Radiation systems with minimal or no shielding requirement on building |
| US9757593B2 (en) | 2012-09-05 | 2017-09-12 | Varian Medical Systems, Inc. | Radiation systems with minimal or no shielding requirement on building |
| CN107952178A (en) * | 2017-12-13 | 2018-04-24 | 合肥中科离子医学技术装备有限公司 | A kind of Proton therapy system using removable shield door compact layout |
| CN108478942A (en) * | 2018-05-10 | 2018-09-04 | 江南大学附属医院 | A kind of oncology radiotherapeutic positioning device |
| US10499861B2 (en) | 2017-09-06 | 2019-12-10 | Zap Surgical Systems, Inc. | Self-shielded, integrated-control radiosurgery system |
| US11684446B2 (en) | 2019-02-27 | 2023-06-27 | Zap Surgical Systems, Inc. | Device for radiosurgical treatment of uterine fibroids |
| US11826582B2 (en) | 2017-05-05 | 2023-11-28 | Zap Surgical Systems, Inc. | Revolving radiation collimator |
-
2002
- 2002-04-03 CN CN 02228922 patent/CN2533895Y/en not_active Expired - Fee Related
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1303614C (en) * | 2004-12-17 | 2007-03-07 | 清华大学 | Shaftless rotary gate for nuclear reactor experimental hole shielding |
| CN102485281A (en) * | 2010-12-03 | 2012-06-06 | 深圳市华科核医疗技术有限公司 | Medical irradiation device |
| US10449393B2 (en) | 2011-12-02 | 2019-10-22 | Varian Medical Systems, Inc. | Radiation systems with minimal or no shielding requirement on building |
| CN104080516A (en) * | 2011-12-02 | 2014-10-01 | 瓦里安医疗系统公司 | Radiation systems with minimal or no shielding requirement on building |
| US9308395B2 (en) | 2011-12-02 | 2016-04-12 | Varian Medical Systems, Inc. | Radiation systems with minimal or no shielding requirement on building |
| CN104080516B (en) * | 2011-12-02 | 2017-03-15 | 瓦里安医疗系统公司 | There is the radiology system of minimal shielding requirement or unshielded requirement to building |
| US9757593B2 (en) | 2012-09-05 | 2017-09-12 | Varian Medical Systems, Inc. | Radiation systems with minimal or no shielding requirement on building |
| US11826582B2 (en) | 2017-05-05 | 2023-11-28 | Zap Surgical Systems, Inc. | Revolving radiation collimator |
| US10499861B2 (en) | 2017-09-06 | 2019-12-10 | Zap Surgical Systems, Inc. | Self-shielded, integrated-control radiosurgery system |
| US11844637B2 (en) | 2017-09-06 | 2023-12-19 | Zap Surgical Systems, Inc. | Therapeutic radiation beam detector for radiation treatment systems |
| CN107952178B (en) * | 2017-12-13 | 2020-07-07 | 合肥中科离子医学技术装备有限公司 | Proton treatment system adopting movable shielding door compact layout |
| CN107952178A (en) * | 2017-12-13 | 2018-04-24 | 合肥中科离子医学技术装备有限公司 | A kind of Proton therapy system using removable shield door compact layout |
| CN108478942A (en) * | 2018-05-10 | 2018-09-04 | 江南大学附属医院 | A kind of oncology radiotherapeutic positioning device |
| US11684446B2 (en) | 2019-02-27 | 2023-06-27 | Zap Surgical Systems, Inc. | Device for radiosurgical treatment of uterine fibroids |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |