CN104001269A - Medical radioactive source device - Google Patents
Medical radioactive source device Download PDFInfo
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- CN104001269A CN104001269A CN201410251899.4A CN201410251899A CN104001269A CN 104001269 A CN104001269 A CN 104001269A CN 201410251899 A CN201410251899 A CN 201410251899A CN 104001269 A CN104001269 A CN 104001269A
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Abstract
The invention relates to a medical radioactive source device. The medical radioactive source device comprises a radioactive source body and a collimation body. A radioactive source hole is formed in the radioactive source body. A collimator with a collimation hole is arranged in the collimation body. The medical radioactive source device further comprises a source storage body arranged in the radioactive source body. The source storage body and the radioactive source body are in rotating fit. A radioactive source is fixedly arranged in the source storage body. The irradiation direction of radioactive source rays penetrates through a pre-collimation hole in the source storage body, the radioactive source hole in the radioactive source body and the collimation hole in the collimation body and faces the common focus of all the rays. The medical radioactive source device further comprises a source storage body driving mechanism driving the source storage body rotate around the axis of the source storage body. According to the medical radioactive source device, the important organs of a patient can be safely and effectively protected against radiation damage caused by the rays under treatment, the radiation quantity can be flexibly and rapidly adjusted, and the shape of an irradiation target spot can be flexibility and rapidly changed so that damage to healthy tissue of the patient is reduced.
Description
Technical field
The present invention relates to a kind of medical radiation source apparatus.
Background technology
General medical radiation therapy apparatus, is mainly made up of radioactive source body, switch body and whole collimation body, and wherein switch body is an entirety, makes the pre-collimating aperture on the middle collimating aperture stray radiation source body on it by displacement, causes switch radioactive source.When this structure is opened, all radiation paths can be opened, while closing, all radiation paths can be closed, be unfavorable for adjusting flexibly the irradiation dose of focus.
Chinese patent CN 101156980A discloses a kind of medical radiation therapy apparatus structure, and this apparatus structure installs radioactive source hole and pre-collimating aperture on radioactive source body, in described radioactive source hole, radioactive source is housed; Described switch body be several cylinder devices in radioactive source body, on described each cylinder top, device of rotation driving is housed, on described cylinder, be equipped with in the middle of collimating aperture; The described body device of collimation eventually, in described radioactive source body inner side, is equipped with whole collimating aperture on the described body of collimation eventually.This patent is controlled respectively each cylinder by device of rotation driving and is rotated, and in the middle of causing, collimating aperture departs from pre-collimating aperture, reaches the object of switch radioactive source.
Although above-mentioned patent technology has more in the past improved the motility that exit dose is adjusted, but in the process of adjustment exit dose, the direction of illumination of radioactive source does not change, therefore in whole therapeutic process, it is target spot that the direction of illumination of radioactive source ray has been aimed at public focus all the time, because the radioactive intensity along its direction of illumination of radioactive source ray is the highest, what therefore in therapeutic process, be subject in the tissue including lesion tissue of target spot is continual high-dose irradiation, this radiation modality is difficult to make health tissues to obtain best protection when lesion tissue obtains medical treatment.
Summary of the invention
The object of this invention is to provide a kind of medical radiation source apparatus, this medical radiation source apparatus not only can be adjusted exit dose neatly, and the infringement that makes health tissues suffer in irradiation process has been reduced to minimum degree, has realized the protection to health tissues.
For achieving the above object, the present invention has adopted following technical scheme: a kind of medical radiation source apparatus, comprise radioactive source body and collimation body, described radioactive source body is provided with radioactive source hole, in collimation body, be provided with the collimator with collimating aperture, this device also comprises the source of bank savings body being arranged in radioactive source body, and described source of bank savings body and radioactive source body formation are rotatably assorted; In source of bank savings body, be installed with radioactive source, the direction of illumination of described radioactive source ray is through the collimating aperture on the pre-collimating aperture on source of bank savings body, radioactive source hole and collimation body on radioactive source body and towards the public focus of all rays; This device also comprises the source of bank savings body driving mechanism that drives source of bank savings body to rotate around himself axis.
The present invention can also be able to further realization by following technical measures:
Preferably, the rotation axis of the position deviation source of bank savings body of the radiation port of described radioactive source.
Further, the spacing between the radiation port of described radioactive source and source of bank savings body rotation axis be at least greater than described collimating aperture bore dia 1/2nd.
Preferably, described source of bank savings body driving mechanism comprises the connecting rod being located in radioactive source body, and one end of described connecting rod and source of bank savings body are fixedly connected, and the other end of connecting rod stretches out radioactive source body and is connected with power source independently.
Further, this device also comprises and is connected to drive source of bank savings body rotate and make the direction of illumination of ray depart from the resetting-mechanism of public focus with described connecting rod and/or source of bank savings body.
Further, described resetting-mechanism is the reset wind spring in radioactive source body one end that stretches out that is arranged on connecting rod.
Preferably, described source of bank savings body is oval column, on source of bank savings body, is disposed with multiple radioactive sources along its rotation axis direction, and the radiation port of the radioactive source on same source of bank savings body and the distance of public focus are all different.
Preferably, this device also comprises the external shielding body that is coated on the external side of radioactive source, forms and is rotatably assorted, and also form and be rotatably assorted between radioactive source body and collimation body between described radioactive source body and external shielding body; It is common rotating shaft line that described radioactive source body has common axis of rotation line with collimation body; This device also comprises the radioactive source body driving mechanism that drives radioactive source body to rotate around common rotating shaft line, and the collimation body driving mechanism that drives collimation body to rotate around common rotating shaft line.
Further, described source of bank savings body is provided with multiple, and multiple source of bank savings body is uniformly distributed along the taper seat taking common rotating shaft line as axis or barrel surface.
Compared to the prior art the present invention has following beneficial effect:
1), the present invention is installed in radioactive source on source of bank savings body, source of bank savings body driving mechanism drives source of bank savings body to rotate, thereby makes ray that radioactive source sends in towards public focus or depart from two kinds of location status of public focus.The ray sending when radioactive source is during towards public focus, and this device is to irradiating in the lesion tissue at public focus place; When the ray sending when radioactive source departs from public focus, the ray that radioactive source sends departs from human body, thereby has realized the protection to health tissues.
2), the rotation axis of the position deviation source of bank savings body of the radiation port of radioactive source in the present invention; when this design makes ray that radioactive source sends depart from public focus rotating when source of bank savings body; the radiation port of radioactive source can't be aimed at the collimating aperture on collimation body; although now radioactive source send ray towards collimation body collimating aperture one side still there is radioactivity; but the roentgendosis that enters described collimating aperture is less; thereby further strengthen controlled to exposure dose, protected health tissue.
3), in the present invention the spacing between the radiation port of radioactive source and source of bank savings body rotation axis be at least greater than described collimating aperture bore dia 1/2nd; not direct projection of ray collimating aperture has been guaranteed in this design, has realized the protection to greatest extent to health tissue.
4), source of bank savings body is provided with multiplely in the present invention, and multiple source of bank savings body is uniformly distributed along the taper seat taking common rotating shaft line as axis or barrel surface, and each source of bank savings body is provided with independently power source simultaneously.This design all can independently be controlled the radioactive source on any one source of bank savings body, also independent opening and closing all can be realized in the optional position that radioactive source on same source of bank savings body rotates at radioactive source body, thereby not only having realized public focus is the conformal of target spot, also there is certain tune powerful.
5), be provided with in the present invention and drive source of bank savings body to rotate and make the direction of illumination of ray depart from the resetting-mechanism of public focus, be also this device in the time of off-position or off position, the ray that the radioactive source on source of bank savings body sends departs from public focus; In the time of energising or work, under the driving in independent power source, the collimating aperture on the ray direct projection collimation body that radioactive source sends, and realize the irradiation to target spot.In fact resetting-mechanism is guarantees automatically to close the protector of radioactive source after power-off, thereby can provide maximum safety assurance for patient.
6) source of bank savings body, in the present invention is oval column, on source of bank savings body, is disposed with multiple radioactive sources along its rotation axis direction, and the radiation port of the radioactive source on same source of bank savings body and the distance of public focus are all different.
From the above, radioactive source in the present invention on same source of bank savings body is linear arrangement, and the radioactive source on same source of bank savings body and the distance of public focus are all unequal, also be that the present invention has adopted the non-equidistant type of focusing, this non-equidistant type of focusing can enlarge markedly and extend treatment space, thereby makes patient's head treatment region extend to cervical region.
7) the radioactive source body, in the present invention and collimation body all can rotate, and source of bank savings body, radioactive source body, collimation body rotate each other and work in coordination in the time of work, have realized preferably conformal to target spot, have realized the tune powerful irradiating simultaneously.
Brief description of the drawings
Fig. 1 is structural representation of the present invention.
Fig. 2 is the structural representation of A-A section in Fig. 1, and the radioactive source in this figure is in open mode.
Fig. 3 is the structural representation of A-A section in Fig. 1, and the radioactive source in this figure is in closed condition.
In figure, the implication of labelling is as follows:
1-external shielding body, 2-radioactive source body, 3-radioactive source, 4-source of bank savings body
5-pre-collimating aperture 6-collimating aperture 7-collimation body 8-connecting rod
9-reset wind spring, 10-power source, 11-travelling gear, 12-public focus
13-common rotating shaft line
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention is elaborated.
As shown in Figure 1, external shielding body 1 is the main shield body that contains radioactive source body 2 peripheries, and its Main Function is the security mask of the 60Co-γ rays for radioactive source 3 is sent.
Radioactive source body 2 is the hollow-core construction of tubular or taper, on radioactive source body 2, be provided with the N group installing hole of circumference uniform distribution, source of bank savings body 4 is installed in installing hole, bearings is all used in the rear and front end of radioactive source body 2, the rear end of radioactive source body 2 is provided with the radioactive source body driving mechanism that drives radioactive source body 2 to rotate, can make radioactive source body 2 rotate according to setting speed, to reach 60Co-γ rays multiple spot continuous radiation (scanning) mode.
Source of bank savings body 4 is oval column type, be arranged with n Co 60 radioactive source along its axial linear, below each radioactive source, be equipped with a pre-collimating aperture 5, described pre-collimating aperture 5 all points to the public focus 12 on common rotating shaft line 13 by the collimating aperture 6 on corresponding collimation body 7, and the pre-collimating aperture 5 on same source of bank savings body 4 is fan-shaped distribution.The two ends of source of bank savings body 4 are with bearings, and one end of source of bank savings body 4 causes external shielding body rear end by connecting rod 8 and connects with independent power source 10.The end of the shield rear end that extends of described connecting rod 8 is provided with reset wind spring 9 and power source 10.
As shown in Figure 2,3, each radioactive source 3 all higher than the axis of rotation of source of bank savings body 4, is also the rotation axis of the position deviation source of bank savings body 4 of the radiation port of radioactive source 3 at the installation end face of source of bank savings body 4.In addition, the spacing e between the radiation port of described radioactive source 3 and source of bank savings body 4 rotation axiss is greater than the bore dia φ of described collimating aperture 6, as shown in Figure 3.
Each source of bank savings body 4 its independently driving control device be all can do under the driving of the power source 10≤rotation of 90 °.
Collimation body 7 is cylindrical structure, the collimation profile of body 7 and the inner chamber of radioactive source body 2 coincide, collimation body 7 is arranged in the inner chamber of radioactive source body 2, and the rear end of collimation body 7 is provided with the collimation body driving mechanism that drives collimation body 7 to rotate, and can match and realize bit selecting and tracking rotary with radioactive source body 2.In the cylindrical wall of collimation body 7, radially arrange in an orderly manner by n collimator, the collimating aperture 6 of this n collimator is corresponding one by one with the pre-collimating aperture 5 on source of bank savings body 4, the common collimation passage that forms of corresponding pre-collimating aperture 5 and collimating aperture 6, all collimation passages converge at public focus 12 places of common rotating shaft line 13.
Described common rotating shaft line 13 is also the rotation axis of radioactive source body 2 and collimation body 7.
Be described further below in conjunction with 1～3 pair of work process of the present invention of Figure of description:
As shown in Figure 1, 2, in the time of the work of this device, the ray that the radioactive source 3 in each source of bank savings body 4 sends all converges to public focus 12 places through corresponding pre-collimating aperture 5, radioactive source hole, collimating aperture 6, to realize the irradiation to target spot.
As shown in Figure 3; when need to close in a certain source of bank savings body 4 radioactive source 3 time; power source 10 moves; source of bank savings body 4 is driven and half-twist angle; thereby the radioactive source 3 in this source of bank savings body 4 and the pre-equal half-twist of collimating aperture 5; the ray that now radioactive source 3 sends no longer irradiates human body through collimating aperture 6, thereby has realized the protection to health tissue.
Meanwhile, radioactive source body 2 and collimation body 7 all can rotate around common rotating shaft line 13 under the effect of its corresponding driving mechanism, thereby realize the conformal of target spot and adjust strong.
In fact source of bank savings body 4 in the present invention is corner-type switch valve, and its axle head is that power source 10 is connected with driving device, rotates around Pivot Point Center, and the angular displacement of source of bank savings body 4 is from 0 ° of (opening)～90 ° (pass).Each source of bank savings body 4 all can be realized separately independently corner and drive control, because the driving device of source of bank savings body 4 is built on the radioactive source body 2 of rotation, thereby form n source of bank savings body 4 at unique texture that again can independent autobiography in common rotating shaft line 13 revolves round the sun, not only guarantee the fast-response and the reliability that regulate, be also realize that radiophysics pursues conformal, adjust powerful key point.
Claims (10)
1. a medical radiation source apparatus, comprise radioactive source body (2) and collimation body (7), described radioactive source body (2) is provided with radioactive source hole, in collimation body (7), be provided with the collimator with collimating aperture (6), it is characterized in that: this device also comprises the source of bank savings body (4) being arranged in radioactive source body (2), described source of bank savings body (4) forms and is rotatably assorted with radioactive source body (2); In source of bank savings body (4), be installed with radioactive source (3), the direction of illumination of described radioactive source (3) ray is through the collimating aperture (6) on the pre-collimating aperture (5) on source of bank savings body (4), radioactive source hole and collimation body (7) on radioactive source body (2) and towards the public focus (12) of all rays; This device also comprises the source of bank savings body driving mechanism that drives source of bank savings body (4) to rotate around himself axis.
2. medical radiation source apparatus according to claim 1, is characterized in that: the rotation axis of the position deviation source of bank savings body (4) of the radiation port of described radioactive source (3).
3. medical radiation source apparatus according to claim 2, is characterized in that: the spacing (e) between the radiation port of described radioactive source (3) and source of bank savings body (4) rotation axis be at least greater than described collimating aperture (6) bore dia (φ) 1/2nd.
4. medical radiation source apparatus according to claim 1, it is characterized in that: described source of bank savings body driving mechanism comprises the connecting rod (8) being located in radioactive source body (2), one end of described connecting rod (8) and source of bank savings body (4) are fixedly connected, and the other end of connecting rod (8) stretches out radioactive source body (2) and is connected with power source (10) independently.
5. medical radiation source apparatus according to claim 4, is characterized in that: this device also comprise be connected with described connecting rod (8) and/or source of bank savings body (4) with drive source of bank savings body (4) rotate and make the direction of illumination of ray depart from the resetting-mechanism of public focus.
6. medical radiation source apparatus according to claim 5, is characterized in that: described resetting-mechanism is for being arranged on the reset wind spring (9) in radioactive source body (2) one end that stretches out of connecting rod (8).
7. according to the medical radiation source apparatus described in claim 1～6 any one, it is characterized in that: described source of bank savings body (4) is oval column, source of bank savings body (4) is upper is disposed with multiple radioactive sources (3) along its rotation axis direction, and the radiation port of the radioactive source (3) on same source of bank savings body (4) and the distance of public focus (12) are all different.
8. medical radiation source apparatus according to claim 1, it is characterized in that: this device also comprises the external shielding body (1) that is coated on radioactive source body (2) outside, between described radioactive source body (2) and external shielding body (1), form and be rotatably assorted, and also form and be rotatably assorted between radioactive source body (2) and collimation body (7); It is common rotating shaft line (13) that described radioactive source body (2) has common axis of rotation line with collimation body (7); This device also comprises the radioactive source body driving mechanism that drives radioactive source body (2) to rotate around common rotating shaft line (13), and the collimation body driving mechanism that drives collimation body (7) to rotate around common rotating shaft line (13).
9. medical radiation source apparatus according to claim 7, it is characterized in that: this device also comprises the external shielding body (1) that is coated on radioactive source body (2) outside, between described radioactive source body (2) and external shielding body (1), form and be rotatably assorted, and also form and be rotatably assorted between radioactive source body (2) and collimation body (7); It is common rotating shaft line (13) that described radioactive source body (2) has common axis of rotation line with collimation body (7); This device also comprises the radioactive source body driving mechanism that drives radioactive source body (2) to rotate around common rotating shaft line (13), and the collimation body driving mechanism that drives collimation body (7) to rotate around common rotating shaft line (13).
10. medical radiation source apparatus according to claim 8 or claim 9, it is characterized in that: described source of bank savings body (4) is provided with multiple, and multiple source of bank savings body (4) is uniformly distributed along taper seat or barrel surface taking common rotating shaft line (13) as axis.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410251899.4A CN104001269B (en) | 2014-06-09 | 2014-06-09 | A kind of medical radiation source apparatus |
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| CN201410251899.4A CN104001269B (en) | 2014-06-09 | 2014-06-09 | A kind of medical radiation source apparatus |
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| CN104001269A true CN104001269A (en) | 2014-08-27 |
| CN104001269B CN104001269B (en) | 2016-07-06 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018009665A1 (en) | 2016-07-06 | 2018-01-11 | Clemson University Research Foundation | Radiation delivery devices and applications thereof |
| 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 |
| CN111803735A (en) * | 2020-07-10 | 2020-10-23 | 珠海丽珠试剂股份有限公司 | Blood irradiation treatment method and blood irradiation instrument |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1586670A (en) * | 2004-09-15 | 2005-03-02 | 杭州华源伽玛医疗设备投资有限公司 | Rotary closing type gamma ray radiator |
| US20080084968A1 (en) * | 2006-10-08 | 2008-04-10 | Yanxiong Qiu | Configuration of a Medical Radiotherapeutic Instrument |
| CN202005958U (en) * | 2011-03-29 | 2011-10-12 | 张华伟 | Radiotherapy equipment |
| CN203898948U (en) * | 2014-06-09 | 2014-10-29 | 武汉新奥沃医疗新技术有限公司 | Medical radiation source device |
-
2014
- 2014-06-09 CN CN201410251899.4A patent/CN104001269B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1586670A (en) * | 2004-09-15 | 2005-03-02 | 杭州华源伽玛医疗设备投资有限公司 | Rotary closing type gamma ray radiator |
| US20080084968A1 (en) * | 2006-10-08 | 2008-04-10 | Yanxiong Qiu | Configuration of a Medical Radiotherapeutic Instrument |
| CN202005958U (en) * | 2011-03-29 | 2011-10-12 | 张华伟 | Radiotherapy equipment |
| CN203898948U (en) * | 2014-06-09 | 2014-10-29 | 武汉新奥沃医疗新技术有限公司 | Medical radiation source device |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018009665A1 (en) | 2016-07-06 | 2018-01-11 | Clemson University Research Foundation | Radiation delivery devices and applications thereof |
| EP3482401A4 (en) * | 2016-07-06 | 2020-03-04 | Clemson University Research Foundation | Radiation delivery devices and applications thereof |
| US10720255B2 (en) | 2016-07-06 | 2020-07-21 | Clemson University | Radiation delivery devices and applications thereof |
| 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 |
| CN111803735A (en) * | 2020-07-10 | 2020-10-23 | 珠海丽珠试剂股份有限公司 | Blood irradiation treatment method and blood irradiation instrument |
| CN111803735B (en) * | 2020-07-10 | 2023-02-14 | 珠海丽珠试剂股份有限公司 | Blood irradiation treatment method and blood irradiation instrument |
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