CN203694431U - Radiotherapy apparatus for real-time tracking of digital image target - Google Patents
Radiotherapy apparatus for real-time tracking of digital image target Download PDFInfo
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- CN203694431U CN203694431U CN201420029153.4U CN201420029153U CN203694431U CN 203694431 U CN203694431 U CN 203694431U CN 201420029153 U CN201420029153 U CN 201420029153U CN 203694431 U CN203694431 U CN 203694431U
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Abstract
The utility model provides a radiotherapy apparatus for real-time tracking of a digital image target. The radiotherapy apparatus comprises dual radiation source body devices that are distributed symmetrically in parallel; and the focuses of the radiation source bodies are superposed. A dual-row CT device is arranged in the middle of the dual radiation source body devices and can carry out imaging around the focuses of the dual radiation source bodies. With the radiotherapy apparatus, during the radiotherapy process, a positioning error caused by tumor moving due to breathing and visceral organ motion can be eliminated, thereby obtaining tumor target region image in real time and thus realizing precise radiotherapy.
Description
Technical field
This utility model relates to large medical equipment field, relates in particular to a kind of gamma ray stereotactic radiotherapy device of CT digital picture target spot real-time tracking.
Background technology
Play radiotherapy the seventies in last century and start to adopt CT image, image guided radiation therapy (Image Guiding Radiotherapy, IGRT) has just been pulled open prelude, and then starts to carry out accurate tumor-localizing, accurate treatment plan design.Doctor no longer only determines treatment range of exposures by percussion, radioscopy bone mark, clinical experience or B ultrasonic data etc., but clear tumour 3 D shape the accurate definite position of seeing in patient body, adopt patient image information to carry out Rapid Dose Calculation, by three-dimensional conformal or adjust the technology such as strong to carry out radiotherapy.According to radiobiological effect, patient generally takes the fractionation of radiation mode of 20～35 times.When before treatment, doctor accurately defines oncotherapy region and requires each radiotherapy, accurately repeat.While ensureing patient, knub position and our predetermined position are in full accord, and it is very difficult particularly having the tumor of physiological organ of locomotion (as lung) adjacent locations.Traditional way is to take to expand roentgenization region to ensure tumor control rate; but part normal structure must be subject to how unnecessary irradiation; or lay particular emphasis on protection normal structure but can make tumor boundaries region dosage shortcoming; increase the possibility of tumor recurrence; doctor and patient are usually in the face of awkward selection; the size and shape of tumor can change with the progress for the treatment of simultaneously, if whole therapeutic process adopts single therapeutic scheme also not too appropriate.
Through the unremitting effort of field of radiation therapy scientist's several years, the latest developments of representative image guided radiation treatment (IGRT) after Intensity Modulation Radiated Therapy (IMRT) technology (IMRT).IGRT technology is expected to solve the ray that a variety of causes causes can not meet the problem of tumor, thereby can approach to greatest extent radiocurable ideal goal.But IGRT technology only rests on the front checking to knub position for the treatment of at present, in therapeutic process, can not make real-time tracking because of the organ skew causing of wriggling with tumor, simultaneously can not be from motion tracking, cropping to the tumor target area in wriggling, therefore the IGRT in present degree still has certain limitation in the use.
Utility model content
This utility model provides a kind of radiotheraphy device of digital picture target spot real-time tracking, for solving at Patients During Radiotherapy, owing to breathing and the kinetic tumor of internal organs moves the position error causing, thereby obtain in real time tumor target area image and realize the problem of accurate radiotherapy.
This utility model provides a kind of radiotheraphy device of digital picture target spot real-time tracking, comprises dijection source body device, and described dijection source body device is parallel symmetrical side by side, and each focus of penetrating source body overlaps; In the middle of the body of described dijection source, be provided with double CT device, described double CT device can be around dijection source body focus imaging.
Preferably, each source body of penetrating comprises source body, collimation body, shield and shield door, penetrates source body for two and jointly forms tubular construction.
Preferably, the centre of gyration line of described double CT device is through the focus of dijection source body.
Preferably, tungsten alloy shading ring, described tungsten alloy shading ring is for fixing double CT device, simultaneously for dijection source body is connected to sealing.
Preferably, the material of described tungsten alloy shading ring is high density tungsten alloy.
Preferably, each source body of penetrating also comprises 12-18 radioactive source, and the radiation focus of each radioactive source all coincides with a bit.
Adopt this utility model digital picture target spot real-time tracking radiotheraphy device, can be by gamma ray stereotactic radiotherapy technology, these two kinds of technology of CT imaging technique become one, realize in treatment, obtain in real time target area image, carry out the position real-time verification of target area and target spot, grasp at any time knub position, the variation of shape, guide and guarantee that prescribed dose is administered on target area accurately by real time imaging, the dosage of the raising tumor tissues of maximum possible and reduce as much as possible normal structure exposure dosage, really realize the accurate radiotherapy under real time imaging guiding, greatly improve radiocurable safety.
Brief description of the drawings
Fig. 1 is the radiotheraphy device cross-sectional schematic of a kind of digital picture target spot real-time tracking in this utility model embodiment.
Detailed description of the invention
In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with drawings and Examples, this utility model is further elaborated.Should be appreciated that specific embodiment described herein is only in order to explain this utility model, and be not used in restriction this utility model.
Must understand the technical solution of the utility model for better, applicant illustrates the radiotheraphy device of the digital picture target spot real-time tracking of this utility model embodiment by the detailed description of the invention of Fig. 1.As shown in Figure 1, Fig. 1 is the radiotheraphy device cross-sectional schematic of a kind of digital picture target spot real-time tracking in this utility model embodiment.
As shown in Figure 1, the radiotheraphy device of this digital picture target spot real-time tracking, comprising: underframe 1, rear shield door 2, rear collimation body 3, opisthogenesis body 4, rear shield 5, double CT device 6, tungsten alloy shading ring 7, front shield 8, front source body 9, front collimation body 10, front shield door 11, three-dimensional bed 12 compositions.Wherein underframe 1 is for supporting whole radiotheraphy device.Front and back shield 8 and 5, source, front and back body 9 and 4, front and back collimate body 10 and 3, front and back shield door 11 and 2, jointly form the dijection source body structure of tubular.Two tubulars are penetrated the parallel symmetric arrays arranged side by side of source body, and its two focuses that form respectively focus at center superposition, form dijection source body focusing structure, it should be noted that, each penetrating on the body of source is distributed with 12-18 cobalt-60 radioactive source separately, and all radioactive sources all point to same round dot, i.e. focus point.
Double CT device 6 is arranged between the body of dijection source, is fixed on underframe 1.It should be noted that the centre of gyration line of double CT device 6 and the intersection point of double CT mid-plane overlap with the focus point of dijection source body.Double CT device 6 is around continuous image data in the axis rotary course of focus place.
Tungsten alloy shading ring 7, for fixing double CT device 6, connects dijection source body to seal simultaneously, and the leakage of guarantee equipment is penetrated and is up to state standards.Described tungsten alloy shading ring 7 has adopted highdensity tungsten alloy material, for the protection of double CT device 6 not by radioactive source roentgenization, thereby extend its service life.
Three-dimensional bed 12 is for carrying patient.When treatment, accurately move by X, Y, Z tri-axles of three-dimensional bed, patient's focus is accurately delivered to the focus place of equipment.After having treated, three-dimensional bed is return safe condition automatically.
This utility model is by becoming one gamma ray stereotactic radiotherapy technology, these two kinds of technology of CT imaging technique, realize in treatment, obtain in real time target area image, carry out the position real-time verification of target area and target spot, grasp at any time the variation of knub position, shape, guide and guarantee that prescribed dose is administered on target area accurately by real time imaging, the dosage of the raising tumor tissues of maximum possible and reduce as much as possible normal structure exposure dosage, really realize the accurate radiotherapy under real time imaging guiding, greatly improved radiocurable safety.
The foregoing is only preferred embodiment of the present utility model; not in order to limit this utility model; all any amendments of doing within spirit of the present utility model and principle, be equal to and replace and improvement etc., within all should being included in protection domain of the present utility model.
Claims (6)
1. a radiotheraphy device for digital picture target spot real-time tracking, is characterized in that, comprises dijection source body device, and described dijection source body device is parallel symmetrical side by side, and each focus of penetrating source body overlaps; In the middle of the body device of described dijection source, be provided with double CT device, described double CT device can be around dijection source body focus imaging.
2. the radiotheraphy device of digital picture target spot real-time tracking as claimed in claim 1, its dijection source body forms tubular construction jointly.
3. the radiotheraphy device of digital picture target spot real-time tracking as claimed in claim 1, is characterized in that: the centre of gyration line of described double CT device is through the focus of dijection source body.
4. the radiotheraphy device of digital picture target spot real-time tracking as claimed in claim 1, characterized by further comprising tungsten alloy shading ring, and described tungsten alloy shading ring is for fixing double CT device, simultaneously for dijection source body is connected to sealing.
5. the radiotheraphy device of digital picture target spot real-time tracking as claimed in claim 1, is characterized in that, the material of described tungsten alloy shading ring is high density tungsten alloy.
6. the radiotheraphy device of digital picture target spot real-time tracking as claimed in claim 2, is characterized in that, each source body of penetrating also comprises 12-18 radioactive source, and the radiation focus of each radioactive source all coincides with a bit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420029153.4U CN203694431U (en) | 2014-01-10 | 2014-01-10 | Radiotherapy apparatus for real-time tracking of digital image target |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420029153.4U CN203694431U (en) | 2014-01-10 | 2014-01-10 | Radiotherapy apparatus for real-time tracking of digital image target |
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| CN203694431U true CN203694431U (en) | 2014-07-09 |
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| CN201420029153.4U Expired - Fee Related CN203694431U (en) | 2014-01-10 | 2014-01-10 | Radiotherapy apparatus for real-time tracking of digital image target |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106777976A (en) * | 2016-12-15 | 2017-05-31 | 苏州大学 | Radiotherapy machine human tumour motion estimation prediction system and method based on particle filter |
| CN108635687A (en) * | 2018-08-24 | 2018-10-12 | 西安大医集团有限公司 | A kind of radiotherapy equipment |
| CN109011218A (en) * | 2018-08-24 | 2018-12-18 | 西安大医集团有限公司 | Load source body, radiotherapy apparatus and its control driving method |
| CN109011217A (en) * | 2018-08-24 | 2018-12-18 | 西安大医集团有限公司 | A kind of radiotherapy system and its control driving method |
-
2014
- 2014-01-10 CN CN201420029153.4U patent/CN203694431U/en not_active Expired - Fee Related
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106777976A (en) * | 2016-12-15 | 2017-05-31 | 苏州大学 | Radiotherapy machine human tumour motion estimation prediction system and method based on particle filter |
| CN106777976B (en) * | 2016-12-15 | 2021-06-11 | 苏州大学 | Radiotherapy robot tumor motion estimation prediction system and method based on particle filtering |
| CN109011217A (en) * | 2018-08-24 | 2018-12-18 | 西安大医集团有限公司 | A kind of radiotherapy system and its control driving method |
| CN109011218A (en) * | 2018-08-24 | 2018-12-18 | 西安大医集团有限公司 | Load source body, radiotherapy apparatus and its control driving method |
| WO2020038226A1 (en) * | 2018-08-24 | 2020-02-27 | 西安大医集团有限公司 | Radiotherapy apparatus and system, and control driving method and apparatus |
| WO2020038220A1 (en) * | 2018-08-24 | 2020-02-27 | 西安大医集团有限公司 | Radiotherapy apparatus |
| US20200206537A1 (en) * | 2018-08-24 | 2020-07-02 | Our United Corporation | Radiation treatment device |
| US10953243B2 (en) * | 2018-08-24 | 2021-03-23 | Our United Corporation | Radiation treatment device |
| US20210146159A1 (en) * | 2018-08-24 | 2021-05-20 | Our United Corporation | Radiation treatment device |
| CN108635687A (en) * | 2018-08-24 | 2018-10-12 | 西安大医集团有限公司 | A kind of radiotherapy equipment |
| JP2021533970A (en) * | 2018-08-24 | 2021-12-09 | 西安大医集団股▲ふん▼有限公司 | Radiation therapy equipment |
| JP7250138B2 (en) | 2018-08-24 | 2023-03-31 | 西安大医集団股▲ふん▼有限公司 | radiotherapy equipment |
| US11759657B2 (en) * | 2018-08-24 | 2023-09-19 | Our United Corporation | Radiation treatment device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140709 Termination date: 20160110 |