CN101961530B - Image-guided radiation therapy equipment - Google Patents
Image-guided radiation therapy equipment Download PDFInfo
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- CN101961530B CN101961530B CN2010105215425A CN201010521542A CN101961530B CN 101961530 B CN101961530 B CN 101961530B CN 2010105215425 A CN2010105215425 A CN 2010105215425A CN 201010521542 A CN201010521542 A CN 201010521542A CN 101961530 B CN101961530 B CN 101961530B
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Abstract
The invention discloses image-guided radiation therapy equipment, which comprises a radiation therapy equipment body and a treatment table, wherein the radiation therapy equipment body further comprises a slip ring frame structure, a radiation therapy device and a computed tomography (CT) scanner; the CT scanner and the radiation therapy device are both arranged on the slip ring frame structure; the radiation therapy device comprises a ray source body; and the CT scanner comprises an X-ray tube and an X-ray detector which are arranged to be in front of and behind the ray source body by 90 degrees respectively. The image-guided radiation therapy equipment provided by the invention can realize the real-time positioning of focal points of rays and gross target volumes to realize real-time tracking, extract two-dimensional images and display in real time the variations of lesion target volumes.
Description
Technical field
The present invention relates to the radiotherapy equipment in medical apparatus and instruments, more particularly, relate to a kind of radiotherapy equipment under image-guided.
Background technology
Well-known radiotherapy is one of most important, the most basic means of oncotherapy, and at present, the capital equipment of tumour radiotherapy is linear accelerator, cobalt-60 therapy machine and gamma knife.But, because tumor tissues is held by normal structure, can damage normal tissue when killing tumor.How to eliminate the impact that is subjected to physiological movement of organ in radiotherapy in addition, as the increase of respiratory movement, filling of bladder, enterogastric peristalsis, tumor with reduce, and elastic deformation of organ, the pendulum bit error in interval procedure etc.Make it and can't accurately locate.In therapeutic process, the real-time positioning of the focus of ray and tumor target area, real-time tracking can't be accomplished.Thereby directly have influence on the effect of oncotherapy.
Existing cobalt-60 therapy machine and gamma knife, because the restriction in structure and treatment space can't be installed X ray image monitor (Digital Radiography, DR).Existing on external accelerator the X ray image monitor is installed, but due to accelerator in therapeutic process, can not implement 360 ° of rapid scannings treatments, so the x-ray projection can't extract as the bidimensional image of monitor, can't show in real time the variation of focus target area.
Summary of the invention
The technical problem to be solved in the present invention is,, for the x-ray projection can't being installed as monitor on existing gamma ray radiation therapeutic device or can not implementing the defect of 360 ° of rapid scannings treatments, provides a kind of radiotherapy equipment under image-guided.
The present invention solves the problems of the technologies described above the technical scheme that adopts: a kind of radiotherapy equipment under image-guided is provided, comprise radiotherapy equipment main body and the therapeutic bed that is arranged on a side of described radiotherapy equipment main body, described therapeutic bed is sent in described radiotherapy equipment main body when treatment; Described radiotherapy equipment main body further comprises: slip ring frame mechanism, and be arranged on the in-house radiotherapy unit of described slip ring frame and CT scanner.
In the radiotherapy equipment under image-guided of the present invention, described slip ring rack construction comprises support, and the external shielding body that is arranged on the column on described support;
Be provided with successively from outside to inside coaxial outer rotation slip ring and interior rotation slip ring in described external shielding body, described interior rotation slip ring is nested in described outer rotation slip ring, and described outer rotation slip ring and interior rotation slip ring are arranged on described external shielding body by the swivel becket bearing;
Described external shielding body also is provided with the transporter that transmits described therapeutic bed for the axis direction along described outer rotation slip ring.
In the radiotherapy equipment under image-guided of the present invention, described radiotherapy unit comprises the radiographic source body, described radiographic source body is arranged on described outer rotation slip ring, the radiographic source channel alignment common point of described radiographic source body, described common point overlaps with the center of rotation of described outer rotation slip ring.
In the radiotherapy equipment under image-guided of the present invention, described radiographic source body is linear accelerator, and described radiotherapy unit also comprises the automatic multi-diaphragm collimator that is arranged on described interior rotation slip ring.
In the radiotherapy equipment under image-guided of the present invention, described radiographic source body is the Co 60 isotope, and described radiotherapy unit also comprises the tungsten alloy taper hole collimator that is arranged on described interior rotation slip ring.
In the radiotherapy equipment under image-guided of the present invention, described CT scanner comprises X ray bulb, X-ray detector, described X ray bulb and X-ray detector are arranged on described outer rotation slip ring, and the line of described X ray bulb and X-ray detector is by described common point.
In the radiotherapy equipment under image-guided of the present invention, described X ray bulb and X-ray detector are arranged to respectively 90 ° of the described radiographic source bodies of lead and lag.
In the radiotherapy equipment under image-guided of the present invention, below, described interior rotation slip ring inside is provided with for the shielding slab that shields described radiographic source body when the non-treatment.
In the radiotherapy equipment under image-guided of the present invention, the anglec of rotation is more than 360 ° when treatment for described slip ring rack construction, and rotary speed is per minute 1～6 to turn variable velocity.
Implement the radiotherapy equipment under image-guided of the present invention, has following beneficial effect: CT scanner is installed in therapy equipment, this CT scanner, as monitor, can realize the focus of ray and the real-time positioning of tumor target area as the X ray projection, accomplishes real-time tracking.Simultaneously, the X ray projection has been installed as the radiotherapy equipment of monitor, can have implemented the rapid scanning treatment of 360 °, thereby can extract bidimensional image and the variation of demonstration focus target area in real time.
Description of drawings
The invention will be further described below in conjunction with drawings and Examples, in accompanying drawing:
Fig. 1 is the theory structure front view of the radiotherapy equipment of the present invention under image-guided;
Fig. 2 is A-A directional profile enlarged drawing in Fig. 1;
Fig. 3 is the engineering design plan (EDP) front view of the radiotherapy equipment of the present invention under image-guided;
Fig. 4 is B-B directional profile enlarged drawing in Fig. 3.
The specific embodiment
In the theory structure front view of the radiotherapy equipment under the present invention shown in Fig. 1 is image-guided, and in the Fig. 1 shown in Fig. 2 in A-A directional profile enlarged drawing, image-guided lower X (γ) the ray irradiation therapeutic equipment of the present embodiment, comprise radiotherapy equipment main body and the therapeutic bed 4 that is arranged on a side of described radiotherapy equipment main body, therapeutic bed 4 is the three-dimensional motion therapeutic bed, is sent in described radiotherapy equipment main body when treatment; Described radiotherapy equipment main body further comprises: slip ring frame mechanism, and be arranged on the in-house radiotherapy unit of described slip ring frame and CT scanner.Described radiotherapy unit comprises radiographic source body 6.Described CT scanner comprises X ray bulb 5 and X-ray detector 9 and electronics, electric elements, and described CT scanner can be used as the X ray projection as monitor, implements the rapid scanning of 360 °.
Described slip ring rack construction is approximately 2.0 meters of external diameters, approximately 0.8 meter of internal diameter, and width is the approximate circle cylinder of 1.2 meters approximately, external shielding body 1, swivel becket bearing 2, outer rotation slip ring 7, interior rotation slip ring 8, support 10, actuating device 11, consists of.Rotate outside on slip ring 7 the radiographic source body 6 of packing into, radiographic source body 6 can be that linear accelerator can be also the Co 60 isotope, and linear accelerator produces X ray, and the Co 60 isotope produces gamma-rays.The shape of radiographic source body 6 and big or small TV structure and determine, but no matter radiographic source body 6 is any body, and its one or more radiographic source passages must be aimed at a common point 3.Use linear accelerator as radiographic source body 6, on interior rotation slip ring 8, automatic multi-diaphragm collimator is installed, as radiographic source body 6, use the Co 60 isotope, tungsten alloy taper hole collimator is installed on interior rotation slip ring 8.Shielding slab 12 is arranged on the inner below of interior rotation slip ring 8, is used for shielding radiographic source body 6 when non-treatment.90 ° of radiographic source body 6 lead and lags of rotating outside on slip ring 7 are located, and X ray bulb 5 and X-ray detector 9 and electronics, electric elements are installed respectively, and X ray bulb 5 and X-ray detector 9 and electronics, electric elements form CT scanner.Transporter 11 is arranged on slip ring rack construction one side, is used for transmitting therapeutic bed 4 along the axis direction of outer rotation slip ring 7.
The anglec of rotation of slip ring rack construction is more than 360 °, and rotary speed is per minute 1～6 to turn variable velocity, and center of rotation is common point 3.
Approximately 500 millimeters of therapeutic bed 4 width, the low temperature thermoplastic film is adopted in the therapeutic bed location.During treatment, the stroke of therapeutic bed 4 on three directions be respectively ± 125 millimeters, ± 100 millimeters and ± 1650 millimeters, the external shield stroke of external shielding body axis direction is 1250 millimeters.
Image-guided lower X (γ) the ray irradiation therapeutic equipment of the present embodiment can the relevant image information of Real-time Collection patient, determine therapy area, thereby make the three-dimensional motion therapeutic bed image-guided lower that patient's therapy area is identical with the common point of radiographic source body collimation accurately, implement radiotherapy.Position, whole process CT scanner Real-time Collection focus target area, by the motion real-time tracking focus target area of three-dimensional motion therapeutic bed, therapeutic process is visualized.
In the engineering design plan (EDP) front view of the radiotherapy equipment under the present invention shown in Fig. 3 is image-guided, and in the Fig. 3 shown in Fig. 4 in B-B directional profile enlarged drawing, the image-guided lower gamma ray radiation therapeutic equipment of the present embodiment comprises the radiotherapy equipment main body and is arranged on the therapeutic bed 4 of a side of described radiotherapy equipment main body, therapeutic bed 4 is the three-dimensional motion therapeutic bed, is sent in described radiotherapy equipment main body when treatment; Described radiotherapy equipment main body further comprises: slip ring frame mechanism, and be arranged on the in-house radiotherapy unit of described slip ring frame and CT scanner.Described radiotherapy unit comprises radiographic source body 6.Described CT scanner comprises X ray bulb 5 and X-ray detector 9 and electronics, electric elements, and described CT scanner can be used as the X ray projection as monitor, implements the rapid scanning of 360 °.
Described slip ring rack construction is approximately 2.0 meters of external diameters, approximately 0.8 meter of internal diameter, and width is the approximate circle cylinder of 1.2 meters approximately, external shielding body 1, swivel becket bearing 2, outer rotation slip ring 7, interior rotation slip ring 8, support 10, actuating device 11, consists of.Rotate outside on slip ring 7 the radiographic source body 6 of packing into.Radiographic source body 6 adopts the Co 60 isotope, and decay produces gamma-rays and is used for the treatment of.Radiographic source body 6 is wedges, arranges according to certain rules 42～55 pieces of Co 60 radiographic sources on wedge, and each radiographic source all has passage on radiographic source body 6, and passage axis is all pointed to common point 3, and radiographic source body 6 is placed on outer rotation slip ring 7.The collimator of radiographic source body 6 adopts tungsten alloy taper hole collimator, this tungsten alloy taper hole collimator is divided into three groups, every group of collimation passage aperture is different from from other two groups to change bifocal size, tungsten alloy taper hole collimator has switch valve to be used for the switch collimator channel, and tungsten alloy taper hole collimator is placed on interior rotation slip ring 8.In non-when treatment,, radiographic source body 6 was placed in the below of slip ring rack construction, by mobile shielding slab 12 with its shielding.90 ° of radiographic source body 6 lead and lags of rotating outside on slip ring 7 are located, and X ray bulb 5 and X-ray detector 9 and electronics, electric elements are installed respectively, and X ray bulb 5 and X-ray detector 9 and electronics, electric elements form CT scanner.Transporter 11 is arranged on slip ring rack construction one side, is used for transmitting therapeutic bed 4 along the axis direction of outer rotation slip ring 7.
The slip ring rack construction anglec of rotation is more than 360 °, and rotary speed is per minute 1～6 to turn variable velocity, and center of rotation is common point 3.
Approximately 500 millimeters of therapeutic bed 4 width, the low temperature thermoplastic film is adopted in the therapeutic bed location.During treatment, the stroke of therapeutic bed 4 on three directions be respectively ± 125 millimeters, ± 100 millimeters and ± 1650 millimeters, the external shield stroke of external shielding body axis direction is 1250 millimeters.
The foregoing is only embodiments of the invention; not thereby limit the scope of the claims of the present invention; every equivalent structure transformation that utilizes description of the present invention and accompanying drawing content to do; or directly or indirectly be used in other relevant technical fields, all in like manner be included in scope of patent protection of the present invention.
Claims (8)
1. radiotherapy equipment under image-guided, it is characterized in that, comprise radiotherapy equipment main body and the therapeutic bed (4) that is arranged on a side of described radiotherapy equipment main body, described therapeutic bed (4) is sent in described radiotherapy equipment main body when treatment; Described radiotherapy equipment main body further comprises: slip ring frame mechanism, and be arranged on the in-house radiotherapy unit of described slip ring frame and CT scanner;
Described slip ring rack construction comprises support (10), and the external shielding body (1) that is arranged on the column on described support (10); Be provided with successively from outside to inside coaxial outer rotation slip ring (7) and interior rotation slip ring (8) in described external shielding body, described interior rotation slip ring (8) is nested in described outer rotation slip ring (7), and described outer rotation slip ring (7) and interior rotation slip ring (8) are arranged on described external shielding body (1) by swivel becket bearing (2);
Described CT scanner comprises X ray bulb (5), X-ray detector (9), described X ray bulb (5) and X-ray detector (9) are arranged on described outer rotation slip ring (7), and the line of described X ray bulb (5) and X-ray detector (9) is by common point (3); Described common point (3) overlaps with the center of rotation of described outer rotation slip ring (7).
2. the radiotherapy equipment under image-guided as claimed in claim 1, is characterized in that,
Described external shielding body (1) also is provided with the transporter (11) that transmits described therapeutic bed (4) for the axis direction along described outer rotation slip ring (7).
3. the radiotherapy equipment under image-guided as claimed in claim 2, it is characterized in that, described radiotherapy unit comprises radiographic source body (6), described radiographic source body (6) is arranged on described outer rotation slip ring (7), the described common point of radiographic source channel alignment (3) of described radiographic source body (6).
4. the radiotherapy equipment under image-guided as claimed in claim 3, is characterized in that, described radiographic source body (6) is linear accelerator, and described radiotherapy unit also comprises the automatic multi-diaphragm collimator that is arranged on described interior rotation slip ring (8).
5. the radiotherapy equipment under image-guided as claimed in claim 3, is characterized in that, described radiographic source body (6) is the Co 60 isotope, and described radiotherapy unit also comprises the tungsten alloy taper hole collimator that is arranged on described interior rotation slip ring (8).
6. the radiotherapy equipment under image-guided as claimed in claim 1, is characterized in that, described X ray bulb (5) and X-ray detector (9) are arranged to respectively (6) 90 ° of the described radiographic source bodies of lead and lag.
7. the radiotherapy equipment under image-guided as claimed in claim 1, is characterized in that, the inner below of described interior rotation slip ring (8) is provided with for the shielding slab (12) that shields described radiographic source body (6) when the non-treatment.
8. the radiotherapy equipment under image-guided as claimed in claim 1, is characterized in that, the anglec of rotation is more than 360 ° when treatment for described slip ring rack construction, and rotary speed is per minute 1～6 to turn variable velocity.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010105215425A CN101961530B (en) | 2010-10-27 | 2010-10-27 | Image-guided radiation therapy equipment |
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| CN2010105215425A CN101961530B (en) | 2010-10-27 | 2010-10-27 | Image-guided radiation therapy equipment |
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| CN101961530A CN101961530A (en) | 2011-02-02 |
| CN101961530B true CN101961530B (en) | 2013-11-13 |
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| CN103071241B (en) * | 2011-10-25 | 2015-12-30 | 苏州雷泰医疗科技有限公司 | Stereotactic radiotherapeutic device |
| EP2589412A1 (en) * | 2011-11-07 | 2013-05-08 | Koninklijke Philips Electronics N.V. | Electronic brachytherapy source for use in /near MR scanners |
| CN102698376B (en) * | 2012-06-12 | 2015-04-15 | 复旦大学附属肿瘤医院 | Passive respiration gate control system and regulating and controlling method thereof |
| CN103083822A (en) * | 2013-01-28 | 2013-05-08 | 广东中能加速器科技有限公司 | Single-bearing supporting rack rotating mechanism used for medical linear accelerator |
| EP2986340B1 (en) | 2013-04-18 | 2016-11-23 | Koninklijke Philips N.V. | Radiation therapy system with real-time magnetic resonance monitoring |
| CN105374654B (en) * | 2014-08-25 | 2018-11-06 | 同方威视技术股份有限公司 | Electron source, x-ray source, the equipment for having used the x-ray source |
| CN105167797A (en) * | 2015-10-16 | 2015-12-23 | 广东中能加速器科技有限公司 | High-energy medical electron linear accelerating and image collecting and scanning coaxial all-in-one machine |
| CN105193438B (en) * | 2015-10-23 | 2017-12-19 | 江苏海明医疗器械有限公司 | A kind of tumor-localizing device and method for radiotherapy simulator |
| CN107050669B (en) * | 2017-06-08 | 2020-02-14 | 张春燕 | Image-guided radiation diagnosis and treatment device |
| CN109513116A (en) * | 2017-09-18 | 2019-03-26 | 胡逸民 | A kind of ray intensity modulated therapy device |
| CN108785872B (en) * | 2017-10-24 | 2023-10-13 | 华瑞先锋医学科技(北京)有限公司 | 4 pi multi-mode image guided accurate radiation therapy 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 |
| CN108525140A (en) * | 2018-04-10 | 2018-09-14 | 新瑞阳光粒子医疗装备(无锡)有限公司 | A kind of proton radiotherapy rack with image documentation equipment |
| CN108785873A (en) * | 2018-04-11 | 2018-11-13 | 西安大医数码科技有限公司 | It is a kind of rotatably to focus radiotherapy head, radiotherapy equipment and system |
| CN109107045B (en) * | 2018-06-11 | 2021-01-05 | 广州医科大学附属肿瘤医院 | Individualized non-uniform rotation irradiation method, system and terminal |
| CN113230547B (en) * | 2018-08-24 | 2023-02-21 | 西安大医集团股份有限公司 | Radiotherapy system |
| CN109011219B (en) * | 2018-08-24 | 2023-11-17 | 西安大医集团股份有限公司 | Radiation therapy system and control driving method thereof |
| GB2596575B (en) * | 2020-07-01 | 2023-04-19 | Elekta ltd | An imaging system for a radiotherapy device |
| CN116196027B (en) * | 2023-04-28 | 2023-12-22 | 赛诺威盛科技(北京)股份有限公司 | CT scanning equipment and scanning method for reducing CT radiation in adaptive scanning area |
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