CN1107374A - Rotary focus type radioactive therapeutic apparatus - Google Patents
Rotary focus type radioactive therapeutic apparatus Download PDFInfo
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- CN1107374A CN1107374A CN 94102458 CN94102458A CN1107374A CN 1107374 A CN1107374 A CN 1107374A CN 94102458 CN94102458 CN 94102458 CN 94102458 A CN94102458 A CN 94102458A CN 1107374 A CN1107374 A CN 1107374A
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Abstract
The focus-rotating type radioactive therapeutic apparatus features that high-energy electron beam from electronic linear accelerator is rotated at 360 deg. under the action of deflection coil and a group of deflection coils is used to make the rotating electron beam focus into affected tissue in various direction sequentially at different angles, so decreasing the damage to health tissue and increasing curative rate. Its special aligning system can ensure better focus.
Description
The present invention proposes a kind of focusing lonizing radiation device, belongs to medical radiation cure equipment.
Existing medical radiotherapy apparatus, be that the x-ray that produces of the electron beam that produces with electron linear accelerator or beam bombardment target is to the tumor direct irradiation, because tumor is at inside of human body, ray is to continue to pass through health tissues from a direction to arrive focus in the therapeutic process, thereby make health tissues and pathological tissues be subjected to the same extent width of cloth photograph, certainly will cause very big damage health tissues.Therefore, each treatment can only be with dosage seldom, and repeatedly reirradiation will continue a plurality of courses of treatment usually, and time even reach some months, not only patient is very painful, and curative effect is also undesirable.
The objective of the invention is to provide a kind of rotary focus type radioactive therapeutic apparatus, and the irradiation pathological tissues that it can be heavy dose of has reduced the injury to health tissues again.
The objective of the invention is to take following mode to finish: rotary focus type radioactive therapeutic apparatus is installed in the port of export of electron linear accelerator, and it comprises a tubaeform support, rack-mount rotary deflecting coil and focus deflection coil.The eck of tubaeform support upper end communicates with the electron linear accelerator outlet, cervical region at support is equipped with a rotary deflecting coil, some focus deflection coils have been arranged by angle of circumference in tubaeform inclined-plane along support, and the action of a magnetic field force direction of these focus deflection coils is from a public focus of radial direction alignment bracket inboard.When the high-power electron beam of electron linear accelerator generation passes through the cervical region of tubaeform support, be subjected to the rotation magnetic deflection field effect of rotary deflecting coil, electron beam deflects and does 360 degree revolutions along the bevel direction of tubaeform support, when rotating electron beam passes some focus deflection coil on the support inclined-plane, be subjected to the action of a magnetic field of this deflection coil, secondary deflection takes place, pass public focus in the support by the direction of the action of a magnetic field power, analogize for surplus time, when angle of revolution electron beam revolution is passed next focus deflection coil, secondary deflection takes place once more, pass public focus in the support again by the action of a magnetic field force direction of this coil, after electron beam returned three-sixth turn, public focus just had been subjected to along the circumferential direction the order width of cloth of different angles and has penetrated.In the actual therapeutic process, with positioner focus is placed the public focus place, when the focus deflection coil is enough big along the angle of circumference arranging density, the successive revolution of electron beam focuses on and just makes the focus point be subjected to being similar to successive heavy dose of width of cloth photograph, and the health tissues around it only is subjected to interrupted instantaneous irradiation.In order to improve the focusing performance of ray, the collimator that is used to proofread and correct focus point is equipped with in the present invention in tubaeform support, aims at public focus through the electron beam of secondary deflection by the collimating aperture of collimator, guarantees collimation and focusing that ray is good.
The technical scheme that the present invention proposes is utilized magnetic deflection field to make high-power electron beam repeatedly change direction and is focused on focus from different perspectives in proper order, and the suffered width of cloth of health tissues is far smaller than focus according to dosage, thereby make the degree of injury of health tissues reduce to minimum, so each treatment can be killed pathological tissues with bigger dose irradiation, improved therapeutic effect greatly, shorten treatment cycle, alleviated patient's misery.
Be described further below in conjunction with drawings and Examples.
Fig. 1 is the structural representation of the embodiment of the invention.
With reference to Fig. 1, the device that present embodiment provides is connected with the outlet of electron linear accelerator by an adapter (1), and the eck of tubaeform support (3) communicates with adapter (1), and the electron beam ray is represented in double dot dash line.Cervical region at support (3) is equipped with rotary deflecting coil (2), for improving focus point (8) width of cloth according to intensity, focus deflection coil (4) is pressed the angle of circumference arrangement of gradients on support (3) inclined-plane, have enough arranging densities, can guarantee the focusing effect of focus point (8).Because focus coil (4) arrangement of gradients, all different with respect to the focusing angle of focus point (8), so each focus coil all has independent design, guarantee that its action of a magnetic field force direction aims at focus point (8).For the consideration that improves focusing, collimator (6) is housed in support (3), collimator (6) has some consistent with focus deflection coil (4) the action of a magnetic field force direction, aim at the collimating aperture (7) of focus point (8) from radial direction, can focus on focus (8) accurately by collimating aperture (7) through the electron beam of secondary deflection.The installation of collimator (6) can be taked two kinds of forms, the one, collimator (6) and tubaeform support (3) are fixedly connected, the number of collimating aperture (7) is corresponding with focus deflection coil (4) with arrangement, shown in Figure 1 as present embodiment, the 2nd, collimator (6) is connected with support (3) by a gyroaxis, collimator (6) can be done 360 degree revolutions in tubaeform support (3), collimating aperture (7) becomes single-row vertical arrangement, each collimating aperture (7) is corresponding to the focusing angle of each focus deflection coil (4), the rotating electron beam that computerizeds control after collimator (6) and the deflection turns round synchronously, when rotating electron beam was subjected to the action of a magnetic field generation secondary deflection of focus deflection coil (4), its focused beam focused on focus point (8) by focusing on the corresponding collimating aperture (7) in angle with this coil.In the present embodiment, also be equipped with between focus deflection coil (4) and the collimator (6) and the corresponding target of collimating aperture (7) (5), when this special target (5) of beam bombardment of secondary deflection, can produce X ray, X ray has stronger penetration capacity, has better effect for the tumor for the treatment of the human body deep.
Claims (7)
1, a kind of medical focus type radioactive therapeutic apparatus, it is installed in the port of export of electron linear accelerator, it is characterized in that this device comprises a tubaeform support (3), be installed in rotary deflecting coil (2) and focus deflection coil (4) on the support (3), the eck of support (3) upper end communicates with the electron linear accelerator outlet, cervical region at support (3) is equipped with a rotary deflecting coil (2), some focus deflection coils (4) have been arranged by angle of circumference in tubaeform inclined-plane along support (3), and the action of a magnetic field force direction of these focus deflection coils (4) is from the inboard public focus (8) of radial direction alignment bracket (3).
2, radiotherapy apparatus according to claim 1 is characterized in that focus deflection coil (4) presses the angle of circumference arrangement of gradients on the tubaeform inclined-plane of support (3).
3, radiotherapy apparatus according to claim 1 and 2, it is characterized in that being equipped with in the support (3) collimator (6), collimator (6) has some consistent with focus deflection coil (4) the action of a magnetic field force direction, aims at the collimating aperture (7) of focus (8) from radial direction.
4, radiotherapy apparatus according to claim 3 is characterized in that collimator (6) and support (3) are fixedly connected, and the number of collimating aperture (7) is corresponding with focus deflection coil (4) with arrangement.
5, radiotherapy apparatus according to claim 3, it is characterized in that collimator (6) connects with support (3) by a gyroaxis, collimating aperture (7) becomes single-row vertical arrangement, and each collimating aperture (7) is corresponding to the focusing angle of each focus deflection coil (4).
6, radiotherapy apparatus according to claim 3 is characterized in that being equipped with between focus deflection coil (4) and the collimator (6) and the corresponding target of collimating aperture (7) (5).
7,, it is characterized in that the eck of support (3) communicates with the outlet of electron linear accelerator by an adapter (1) according to the described radiotherapy apparatus of claim 3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN94102458A CN1051723C (en) | 1994-02-26 | 1994-02-26 | Rotary focus type radioactive therapeutic apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN94102458A CN1051723C (en) | 1994-02-26 | 1994-02-26 | Rotary focus type radioactive therapeutic apparatus |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1107374A true CN1107374A (en) | 1995-08-30 |
| CN1051723C CN1051723C (en) | 2000-04-26 |
Family
ID=5030668
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN94102458A Expired - Fee Related CN1051723C (en) | 1994-02-26 | 1994-02-26 | Rotary focus type radioactive therapeutic apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1051723C (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1050062C (en) * | 1996-12-17 | 2000-03-08 | 深圳奥沃国际科技发展有限公司 | Rotary gamma ray radiation unit |
| CN1052919C (en) * | 1997-03-15 | 2000-05-31 | 深圳奥沃国际科技发展有限公司 | Three-dimensional irradiation tech. and equipment with charged particle having Bragg peak character |
| CN106075748A (en) * | 2016-07-29 | 2016-11-09 | 中国原子能科学研究院 | Wobbling magnet diffusion proton beam is utilized to carry out the method and device of oncotherapy |
| CN106110522A (en) * | 2016-07-29 | 2016-11-16 | 中国原子能科学研究院 | Utilize the method and device of the wobbling magnet diffusion proton beam therapy tumor of variable voltage |
| CN108478941A (en) * | 2018-04-28 | 2018-09-04 | 西安大医数码科技有限公司 | Radiotherapy unit |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60195900A (en) * | 1984-02-21 | 1985-10-04 | シーメンス、アクチエンゲゼルシヤフト | Electron accelerator |
| US4638814A (en) * | 1984-09-11 | 1987-01-27 | Siemens Medical Laboratories | Electron accelerator unit for electron beam therapy |
| US4827491A (en) * | 1986-10-30 | 1989-05-02 | New York University | Radiosurgical collimator knife |
| US5267294A (en) * | 1992-04-22 | 1993-11-30 | Hitachi Medical Corporation | Radiotherapy apparatus |
-
1994
- 1994-02-26 CN CN94102458A patent/CN1051723C/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1050062C (en) * | 1996-12-17 | 2000-03-08 | 深圳奥沃国际科技发展有限公司 | Rotary gamma ray radiation unit |
| CN1052919C (en) * | 1997-03-15 | 2000-05-31 | 深圳奥沃国际科技发展有限公司 | Three-dimensional irradiation tech. and equipment with charged particle having Bragg peak character |
| CN106075748A (en) * | 2016-07-29 | 2016-11-09 | 中国原子能科学研究院 | Wobbling magnet diffusion proton beam is utilized to carry out the method and device of oncotherapy |
| CN106110522A (en) * | 2016-07-29 | 2016-11-16 | 中国原子能科学研究院 | Utilize the method and device of the wobbling magnet diffusion proton beam therapy tumor of variable voltage |
| CN106075748B (en) * | 2016-07-29 | 2018-10-09 | 中国原子能科学研究院 | The device of oncotherapy is carried out using wobbling magnet diffusion proton beam |
| CN106110522B (en) * | 2016-07-29 | 2018-10-09 | 中国原子能科学研究院 | The device of proton beam therapy tumour is spread using the wobbling magnet of variable voltage |
| CN108478941A (en) * | 2018-04-28 | 2018-09-04 | 西安大医数码科技有限公司 | Radiotherapy unit |
| CN108478941B (en) * | 2018-04-28 | 2021-04-27 | 西安大医集团股份有限公司 | Radiotherapy device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1051723C (en) | 2000-04-26 |
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