CN2736014Y - Turn-to-close type gamma ray radiation device - Google Patents
Turn-to-close type gamma ray radiation device Download PDFInfo
- Publication number
- CN2736014Y CN2736014Y CN 200420090204 CN200420090204U CN2736014Y CN 2736014 Y CN2736014 Y CN 2736014Y CN 200420090204 CN200420090204 CN 200420090204 CN 200420090204 U CN200420090204 U CN 200420090204U CN 2736014 Y CN2736014 Y CN 2736014Y
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- CN
- China
- Prior art keywords
- rotating shaft
- collimator
- source
- gamma ray
- rotary shaft
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Radiation-Therapy Devices (AREA)
- Nuclear Medicine (AREA)
Abstract
The utility model discloses a turn-to-close type gamma ray radiation device. The both sides of the box wall in a box body are supported with a stepped rotary shaft. A rectangular slot is arranged on the long cylinder of the rotary shaft along the direction of the shaft, and a source clamp is arranged in the rectangular slot. Source bodies which are arranged in a straight line, distributed in a fan shape and focused on one point are arranged in the source clamp. A main shielding block and an auxiliary shielding block are arranged on the outside of the rotary shaft and the outside of the shaft sleeve. A primary collimating device is arranged on the auxiliary shielding block, and a secondary collimating device is arranged on the outside of the auxiliary shielding block. One end of the rotary shaft is provided with a positioning rob capable of rotating, and the box body is provided with the limit switch of the positioning rob. The utility model can be convenient mounted and dismounted from a main machine. By adopting the high density materials which are wolfram 95 and uranium 238 for shielding, the gamma ray radiation device in a split type structure can be easily provided with few slit surface. After the rotary shaft driven by the motor rotates 180 degrees, the closing of the radioactive source can be effectively realized, so that the control is easy and the shielding is reliable.
Description
Technical field
This utility model relates to a kind of rotary closing type gamma ray radiator.
Background technology
Gamma ray radiator is the leakage that prevents lonizing radiation, must have campaign-styled parts to intercept ray channel under the non-therapeutic state, certainly will cause the complex structure, bulky of radiation appliance like this.Its result makes radiation appliance can not finish some complicated resultant motions neatly and is not easy to dismounting like a cork from the main frame, changes the work of radioactive source.
Summary of the invention
The purpose of this utility model is to provide a kind of rotary closing type gamma ray radiator, not only simple in structure, control easily, and shielding is reliable, the leakage that can prevent lonizing radiation effectively.
The technical scheme that its technical problem that solves this utility model adopts is:
At the intravital tank wall two-side supporting of case step-like rotating shaft is arranged, axis direction has rectangular slot on the rotating shaft elongated cylinder, the source folder is housed in the rectangular slot, to be equipped with in the source folder be in line arranges, centrage is the point-foussed source of fan-shaped distribution body, axle sleeve is inserted in rotating shaft elongated cylinder outside, case lid is housed on the casing, rotating shaft and axle sleeve are equipped with main shield piece and secondary shielding slab outward, on the secondary shielding slab example of primary collimator is installed, secondary collimator is contained in outside the example of primary collimator, axle sleeve, all have linear array on example of primary collimator and the secondary collimator, centrage is the through hole that fan-shaped distribution focuses on the focus of source body, and source body and axle sleeve, example of primary collimator, through hole on the secondary collimator can be aimed at mutually, expose outer rotating shaft one end of casing the locating rod that can rotate with rotating shaft is housed, the limit switch of locating rod is housed on the casing.
Main shield piece and secondary shielding slab are nuclear screening material uranium 238, and example of primary collimator and secondary collimator are high density material tungsten 95.
The useful effect that the utlity model has is:
1. this utility model is an independent structures, and volume is little, in light weight, adopts the opposite opened housing seal to install, and is convenient with the main frame mounting or dismounting;
2. rotating shaft of the present utility model is by driven by motor, can realize closing radioactive source effectively behind the Rotate 180 °, control easily, shielding is reliable;
3. collimator of the present utility model can be changed, and helps treating the focus that all size does not wait.
Description of drawings
Fig. 1 is a structural principle sketch map of the present utility model;
Fig. 2 is the A-A cutaway view of Fig. 1.
Among the figure: 1, casing, 2, the main shield piece, 3, axle sleeve, 4, rotating shaft, 5, source folder, 6, the source body, 7, big bearing, 8, locating rod, 9, the bearing dustproof cover plate, 10, case lid, 11, secondary shielding slab, 12, example of primary collimator, 13, secondary collimator, 14, little bearing, 15, the bearing dustproof cover plate, 16, limit switch, 17, screw hole.
The specific embodiment
The utility model is described in further detail below in conjunction with drawings and Examples.
As Fig. 1, shown in Figure 2, this utility model comprises: the little bearing 14 of the tank wall both sides in casing 1 and big bearing 7 are supported with step-like rotating shaft 4 respectively, little bearing 14 and the big bearing 7 outer bearing dustproof cover plates 15 that are stamped respectively, 9, axis direction has rectangular slot on rotating shaft 4 elongated cylinder, source folder 5 is housed in the rectangular slot, to be equipped with in the source folder 5 be in line arranges, centrage is the point-foussed source of fan-shaped distribution body 6, axle sleeve 3 is inserted in rotating shaft 4 elongated cylinder outside, case lid 10 is housed on the casing 1, rotating shaft 4 and axle sleeve 3 outer main shield piece 2 and the secondary shielding slabs 11 of being equipped with, on the secondary shielding slab 11 example of primary collimator 12 is installed, secondary collimator 13 is contained in outside the example of primary collimator 12, axle sleeve 3, all have linear array on example of primary collimator 12 and the secondary collimator 13, centrage is the through hole that fan-shaped distribution focuses on the focus of source body 6, and source body 6 and axle sleeve 3, example of primary collimator 12, through hole on the secondary collimator 13 can be aimed at mutually, exposing casing 1 outer rotating shaft 4 one ends is equipped with and can the limit switch 16 of locating rod 8 be housed on the casing 1 with the locating rod 8 of rotating shaft 4 rotations.
The outer ends that locating rod 8 is housed of rotating shaft 4 are installed belt pulleys, and belt pulley links to each other with motor by band synchronously, and machine operation will 4 rotations of driven rotary axle, can close radioactive source behind rotating shaft 4 Rotate 180s °; The motor reverse rotation, open radioactive source behind rotating shaft 4 Rotate 180s °, locating rod 8 makes limit switch 16 work can close power machine, radiates the through-hole alignment of body 6 centers and axle sleeve 3, example of primary collimator 12, secondary collimator 13 in a steady stream, and radiation appliance enters therapeutic state.
The background radiation device is installed on the frame by screw hole 17, and the revolution of frame drives radiation appliance focus is scanned irradiation.
Claims (2)
1. rotary closing type gamma ray radiator, it is characterized in that: the tank wall two-side supporting in casing (1) has step-like rotating shaft (4), axis direction has rectangular slot on rotating shaft (4) elongated cylinder, source folder (5) is housed in the rectangular slot, to be equipped with in the source folder (5) be in line arranges, centrage is the point-foussed source of fan-shaped distribution body (6), axle sleeve (3) is inserted in rotating shaft (4) elongated cylinder outside, case lid (10) is housed on the casing (1), outer main shield piece (2) and the secondary shielding slab (11) of being equipped with of rotating shaft (4) and axle sleeve (3), secondary shielding slab (11) is gone up example of primary collimator (12) is installed, secondary collimator (13) is contained in outside the example of primary collimator (12), axle sleeve (3), all have linear array on example of primary collimator (12) and the secondary collimator (13), centrage is the through hole that fan-shaped distribution focuses on source body (6) focus, and source body (6) and axle sleeve (3), example of primary collimator (12), through hole on the secondary collimator (13) can be aimed at mutually, exposing outer rotating shaft (4) one ends of casing (1) is equipped with and can the limit switch (16) of locating rod (8) be housed on the casing (1) with the locating rod (8) of rotating shaft (4) rotation.
2. a kind of rotary closing type gamma ray radiator according to claim 1 is characterized in that: main shield piece (2) and secondary shielding slab (11) are nuclear screening material uranium 238, and example of primary collimator (12) and secondary collimator (13) are high density material tungsten 95.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420090204 CN2736014Y (en) | 2004-09-15 | 2004-09-15 | Turn-to-close type gamma ray radiation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420090204 CN2736014Y (en) | 2004-09-15 | 2004-09-15 | Turn-to-close type gamma ray radiation device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2736014Y true CN2736014Y (en) | 2005-10-26 |
Family
ID=35306751
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420090204 Expired - Fee Related CN2736014Y (en) | 2004-09-15 | 2004-09-15 | Turn-to-close type gamma ray radiation device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2736014Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104795121A (en) * | 2014-01-22 | 2015-07-22 | 上海联影医疗科技有限公司 | Split type primary collimator |
| WO2016011604A1 (en) * | 2014-07-22 | 2016-01-28 | 数码医疗集团 | Radioactive source assembly and treatment head and gamma knife having radioactive source assembly |
| CN106456991A (en) * | 2015-08-04 | 2017-02-22 | 西安大医数码技术有限公司 | Focussed radiotherapy apparatus and radiation therapy device |
-
2004
- 2004-09-15 CN CN 200420090204 patent/CN2736014Y/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104795121A (en) * | 2014-01-22 | 2015-07-22 | 上海联影医疗科技有限公司 | Split type primary collimator |
| CN104795121B (en) * | 2014-01-22 | 2019-02-01 | 上海联影医疗科技有限公司 | Split type example of primary collimator |
| WO2016011604A1 (en) * | 2014-07-22 | 2016-01-28 | 数码医疗集团 | Radioactive source assembly and treatment head and gamma knife having radioactive source assembly |
| CN105705201A (en) * | 2014-07-22 | 2016-06-22 | 深圳市奥沃医学新技术发展有限公司 | Radioactive source assembly and treatment head and gamma knife having radioactive source assembly |
| CN105705201B (en) * | 2014-07-22 | 2019-02-19 | 深圳市奥沃医学新技术发展有限公司 | Radiation source assemblies and treatment head and gamma knife with the radiation source assemblies |
| CN106456991A (en) * | 2015-08-04 | 2017-02-22 | 西安大医数码技术有限公司 | Focussed radiotherapy apparatus and radiation therapy device |
| CN106456991B (en) * | 2015-08-04 | 2019-03-19 | 西安大医集团有限公司 | Focus radiotheraphy device and radiotherapy equipment |
| US10716952B2 (en) | 2015-08-04 | 2020-07-21 | Our United Corporation | Focused radiotherapy apparatus and radiotherapy equipment thereof |
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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 |