CN104338245A - Ion beam radiation field simulation parallel light field indication device and method - Google Patents
Ion beam radiation field simulation parallel light field indication device and method Download PDFInfo
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Abstract
The invention relates to the technical field of radiation field simulation in ion beam distribution systems, in particular to an ion beam radiation field simulation parallel light field indication device and a an ion beam radiation field simulation parallel light field indication method. The device is characterized by comprising a rotating base, a translation pedestal and two groups of parallel beam laser indication units, wherein the parallel beam laser indication units are arranged on the translation pedestal, and can move relative to each other; each parallel beam laser indication unit is of a matrix structure formed by closely arranging a plurality of laser indication bars at an equal interval, and the laser indication bars are formed by connecting servo motor drivers with laser light sources; a single laser light source is transversely driven by the corresponding servo motor driver to reach an intersection of a radiation field outline and a movement path, and longitudinally emits a laser ray for indication along a beam direction, so that the two groups of laser indication units drive the laser light sources to simulate the radiation field outline, i.e. a light field, in a dot matrix mode according to equally-spaced sampling points of the radiation field outline. The device and the method have a radiation field laser indication and distance measurement functions, and also have a function of actively sketching a specific tumor target outline of a patient.
Description
Technical field
The present invention relates to launched field analogue technique field in ion beam delivery system, especially relate to a kind of wild indicating device of directional light and the method for simulating ion beam launched field.
Background technology
Conventional ray irradiation treatment needs leaving x-ray source a distance and produce the irradiation field of X-ray, to carry out radiotherapy to the tumor of a certain size and shape in patient body.The profile of irradiation field defines the scope of radiation, if the scope that machine is specified is inconsistent with actual scope of irradiating, the part that target area can be made to have is missed irradiation, seriously can also be irradiated to neighbouring critical organ.Medical electronic linear accelerator indicates the scope of irradiation field by simulation light open country.When posture radiotherapy is carried out to patient, usually determine the position of beam radiation by light open country, must be consistent with irradiation field so light is wild.Therefore, in tumour radiotherapy, the accordance that is wild and launched field of the light in irradiation field characteristic check is an important content of radiotherapy physical technique quality assurance.
In conventional ray irradiation treatment, x-ray source is a point source, and the distance different from point source will produce the different radiation field size of size.Ion beam (proton, heavy ion) radiotherapy needs to produce the radiation field size of a certain size and shape equally, but different from the diversity of conventional ray, and ion beam has the parallel direction of height when accelerator is drawn.Therefore in medical ion accelerator illuminated optical analog systems, need application source of parallel light to simulate ion beam irradiation open country or irradiation field.
In current conventional ray irradiation treatment, the wild analog systems (optics indication mechanism) of medical electronic linear accelerator light mainly comprises: the wild indicating device (analog modulation) of light and distance display lamp (light carpenters square).Analog modulation analog radiation source, simultaneously optical analog radiation field size center and its shape; Light carpenters square is used to refer to the central axis of radiation field size, thus instruction radiation source is to the vertical dimension of patient body-surface.
The effect of analog modulation mirror assembly is the radiation field size formed by diaphragm with common optical analog radiation source.Light is the same with radiation, is all straightline propagation from occurring source.Reflection law according to light: angle of incidence equals this feature of angle of reflection, as long as make the light source points such as simulation equal the distance of radiation source point to same perspective plane to the light path on perspective plane, the position of analog modulation light source point and the position relative reflection minute surface of radiation source point symmetrical, just can go out the size and shape of radiation field size usually with the projection of visible ray (claim light wild) analog representation.
When prior art Problems existing and prior art are applied to ion beam radiation therapy, Problems existing is as follows:
(1) actual make to use up wild analog systems time, owing to manufacture and the wild problem do not overlapped of the light that brings of rigging error always exists.Such as analog modulation light source point does not have error in the angle of theoretical position or reflecting mirror, and these all can cause the optical analog error of radiation field size, causes simulated light open country not overlap with radiation field size;
(2) due to the divergence characterization of point source, in the wild analog systems of existing light, point source cannot the parallel ion beam launched field of simulated altitude, and the wild obscurity boundary of light that ordinary light source is formed after diaphragm, there is with radiation field size the index error that overlaps;
(3) in conventional ray irradiation treatment, the wild analog systems major function of medical electronic linear accelerator light is that simulation points radiation of light source is wild passively, cannot accomplish to delineate or depict irradiation field profile on one's own initiative, also cannot indicate at patient body-surface the situation that overlaps that irradiation field projects with body surface target area specifically.
Summary of the invention
The object of the invention is to the problem solving the parallel line irradiation field simulation in ion beam irradiation field and pointing technology, the wild indicating means of a kind of directional light for simulating irradiation field in ion beam current delivery system and device are provided, it adopts the LASER Light Source group of driven by servomotor, accurately determine irradiation field profile, both there is irradiation field laser designation and distance measurement function, what also have the tumor target profile of patient-specific initiatively delineates function, can also verify the matching degree that multi-leaf optical grating configuration and patient tumors target area project simultaneously.Also can solve light source indication mechanism in conventional ray irradiation treatment electron linear accelerator and can not read the technical problem of irradiating irradiation field data file and multi-leaf optical grating data file in control system in real time.
For achieving the above object, the technical scheme that the present invention takes is: described a kind of wild indicating device of directional light of simulating ion beam launched field, be characterized in comprising rotating base, described rotating base is provided with translation base, translation base is provided with two groups of parallel beam laser designation unit of relative motion; The matrix structure that the equidistant close-packed arrays of laser designation bar that described parallel beam laser designation unit is formed by multiple motor servo driver connection LASER Light Source is formed, LASER Light Source is arranged on motor servo driver front end, single LASER Light Source is laterally driven by motor servo driver and arrives irradiation field profile and moving line intersection point, LASER Light Source longitudinally sends laser rays and indicates along beam direction, and two groups of laser designation unit simulate irradiation field profile according to the equidistant sample point driving laser light sources of irradiation field configuration profile with dot pattern and form light open country.
Described rotating base realizes revolving turnback around beam axis with the step-length of 0.5 degree; Translation base is with the step-length of 0.2mm along guide rail movement 10-20mm, and the translation base direction of motion is vertical with beam axis; Parallel beam laser designation unit motion direction is vertical with beam axis, vertical with translation base direction of displacement; The motion of translation base, rotating base and laser designation bar three achieves the three-degree-of-freedom motion of laser designation bar.
Described LASER Light Source is auto-collimation laser diode, and the Laser emission direction of LASER Light Source is vertical with motor movement direction, parallel with beam direction.
Described rotating base ensures that laser designation unit has conformal flexibility ratio in instruction particular configuration as during concave polygon irradiation field; Translation base provides the technology guarantee improving during laser designation unit active drawing target outline profile and delineate resolution.It had both had laser designation and the distance measurement function of irradiation field scope, and what also have the tumor target profile of patient-specific initiatively delineates function simultaneously.
Described a kind of wild indicating device of directional light of simulating ion beam launched field, has two kinds of mode of operations: conventional pointing-type: it is wild that the instruction of laser designation unit specifically has canonical sized ion beam irradiation, as 10 × 10cm during its work
2irradiation field; Initiatively delineate pattern: laser designation unit simulates the wild profile sample point of ion beam irradiation according to the equidistant sample point driving laser light sources of tumor target projected outline with dot pattern, namely the wild profile of light is formed, help to determine the profile of tumor target at body surface projection, or coordinate multi-leaf optical grating configuration, by the matching degree between the relation comparison multi-leaf optical grating configuration of the parallel line of ion and tumor target projected outline.Laser designation mechanism passes through translation base global displacement where necessary to increase laser designation resolution, improves the accuracy describing irradiation field.Laser designation mechanism is communicated with TPS data base or other medical information data storehouses by DICOM (DICOMRT) communication protocol and RS232 serial interface communication mode, obtains the data such as irradiation field data or target area projected outline.
Described a kind of wild indicating means of directional light of simulating ion beam launched field, is characterized in comprising the steps:
(1) functional mode is selected, and the work functions pattern of the wild indicating device of directional light is divided into conventional launched field pointing-type and initiatively delineates pattern, when selecting conventional launched field pointing-type, directly reading launched field data and carrying out laser positioning instruction;
(2) when select initiatively delineate pattern time, first data communication is carried out with ion beam therapy planning system (or irradiating control system) by DICOM (DICOMRT) communication protocol and RS232 serial interface communication mode, obtain the target area projected outline data of tumor target on beam direction or irradiation field outline data, outline data comprises the file header and coordinate data of indicating Data Source, attribute, transition matrix;
(3) be optimized calculating and obtain laser positioning data, driving laser light source carries out the instruction of laser fixed point; Adopt polygon scan filling algorithm, obtain the LASER Light Source direction of motion and the intersection point locator data of irradiation field contour line, after the calculating such as Coordinate Conversion, convert LASER Light Source displacement data to, servomotor accordingly driving laser lamp motion to assigned address;
(4) when the laser positioning precision needing raising irradiation field to delineate, the repeatedly optimization adopting the optimized algorithm in third step to carry out laser positioning data according to translation base global displacement data calculates, obtain the intersection point locator data of the more intensive LASER Light Source direction of motion of arrangement and irradiation field contour line, convert LASER Light Source displacement data rear drive LASER Light Source to and carry out repeatedly the instruction of laser fixed point; Repeatedly to cause anchor point to distribute more intensive for the instruction of laser fixed point, makes to draw line segment and real contour line matching degree is higher, and irradiation field is delineated more accurate; Optimized algorithm generally adopts polygon scan filling algorithm, the intersection point locator data of the LASER Light Source direction of motion and irradiation field contour line is obtained after Coordinate Conversion etc. calculates, convert LASER Light Source displacement data to, servomotor accordingly driving laser lamp motion to assigned address;
(5) connect each anchor point by pointwise, complete irradiation field and initiatively delineate program.
The invention has the beneficial effects as follows: the described a kind of wild indicating means of directional light and device of simulating launched field, it has the communication function that real-time reception irradiates irradiation field data file in control system, driven by servomotor LASER Light Source group is adopted to form light wild, the instruction of irradiation field profile accurately fast, both had laser designation and the distance measurement function of irradiation field scope, what also have the tumor target profile of patient-specific initiatively delineates function simultaneously.The wild laser indication device of ion beam irradiation has filled up the blank that ion beam irradiation field does not have the wild indication mechanism of special ion beam irradiation.The beneficial effect that technical solution of the present invention is brought mainly contains following 3 points:
(1) laser diode light source through collimation has that diversity is little, the advantage of good linearity, the high directivity that especially LASER Light Source is exclusive, the feature that monochromaticity is good, can the parallel and low ion beam current dispersed of accurate simulation height.
(2) the wild laser indication device of the ion beam irradiation several functions that has instruction concurrently, locate and delineate.Owing to having the function of carrying out data communication with treatment planning systems (or treating control system), LASER Light Source is driven by motor, the wild edge of ion beam irradiation can be indicated from line launched field angle fixed point neatly according to locator data, therefore both there is the function of conventional irradiation field instruction, what also have confession technical staff's positioning tumor target area projected outline initiatively delineates function, also solves the technical problem be easily blocked with easy deformation.Utilize the parallel relation of ion beam current, the wild laser indication device of ion beam irradiation can also matching degree between comparison multi-leaf optical grating configuration and tumor target projected outline.
(3) the wild laser indication device of whole ion beam irradiation is driven by motor, its compact conformation, and volume is little, and accurately fast, reliability is high, also improves ease for maintenance in motion; Laser diode light source power little (1-10mw magnitude), monochromaticity is good, and precision is high, and safety and stability is high; Laser pointer system entirety is a rigid structure, and its installation difficulty is compared conventional point source light indication mechanism and obtained very large reduction with rigging error; Therefore, whole system cost is low, practicality and reliability high.
Accompanying drawing illustrates:
Fig. 1 is the wild laser indication device structure chart of ion beam irradiation of the present invention;
Fig. 2 is heavy ion beam current dispensing light open country simulation schematic diagram;
Fig. 3 is the wild laser designation method flow diagram of ion beam irradiation of the present invention;
Fig. 4 is the tumor target maximal projection profile that the present invention is calculated by HIRTPS;
Fig. 5 is the irradiation field profile that the present invention initiatively delineates initial laser under pattern and fixes a point to delineate;
Fig. 6 is the irradiation field profile initiatively delineated secondary laser under pattern and fix a point to delineate of the present invention.
Shown in figure: 1. rotating base, 2. translation base 3. motor servo driver, 4. LASER Light Source, 5. irradiation field profile, 6. light is wild.
Detailed description of the invention
Below in conjunction with accompanying drawing shownschematically preferred example be described in further detail:
As illustrated in fig. 1 and 2, described a kind of wild indicating device of directional light of simulating ion beam launched field, be characterized in comprising rotating base 1, described rotating base 1 is provided with translation base 2, translation base 2 is provided with two groups of parallel beam laser designation unit of relative motion, described parallel beam laser designation unit connects by multiple motor servo driver 3 matrix structure that the equidistant close-packed arrays of laser designation bar that LASER Light Source 4 formed formed, LASER Light Source 4 is arranged on motor servo driver 3 front end, single LASER Light Source is laterally driven by motor servo driver and arrives irradiation field profile and moving line intersection point, LASER Light Source 4 longitudinally sends laser rays and indicates along beam direction, two groups of laser designation unit simulate irradiation field profile 5 according to the equidistant sample point driving laser light sources of irradiation field configuration profile with dot pattern and form light open country 6.
Described rotating base 1 realizes revolving turnback around beam axis with the step-length of 0.5 degree; Translation base 2 is with the step-length of 0.2mm along guide rail movement 10-20mm, and translation base 2 direction of motion is vertical with beam axis; Parallel beam laser designation unit motion direction is vertical with beam axis, vertical with translation base 2 direction of displacement; The motion of translation base 2, rotating base 1 and laser designation bar three achieves the three-degree-of-freedom motion of laser designation bar.
Described LASER Light Source 4 is auto-collimation laser diode, and the Laser emission direction of LASER Light Source 4 is vertical with motor movement direction, parallel with beam direction.
Described rotating base 1 ensures that laser designation unit has conformal flexibility ratio in instruction particular configuration as during concave polygon irradiation field; Translation base provides during laser designation unit active drawing target outline profile and improves the technological means of delineating resolution.It had both had laser designation and the distance measurement function of irradiation field scope, and what also have the tumor target profile of patient-specific initiatively delineates function simultaneously.
Described a kind of wild indicating device of directional light of simulating ion beam launched field, has two kinds of mode of operations: conventional pointing-type: it is wild that the instruction of laser designation unit specifically has canonical sized ion beam irradiation, as 10 × 10cm during its work
2irradiation field; Initiatively delineate pattern: laser designation unit initiatively fixes a point to indicate the wild profile sample point of ion beam irradiation according to tumor target data for projection, help to determine the profile of tumor target at body surface projection, or coordinate multi-leaf optical grating configuration, by the matching degree between the relation comparison multi-leaf optical grating configuration of the parallel line of ion and tumor target projected outline.Laser designation mechanism passes through translation base global displacement where necessary to increase laser designation resolution, improves the accuracy describing irradiation field.Laser designation mechanism control system is communicated with TPS data base or other medical information data storehouses by DICOM (DICOMRT) communication protocol and RS232 serial interface communication mode, obtains the data such as irradiation field data or target area projected outline.
Described a kind of wild indicating device of directional light of simulating ion beam launched field, has two kinds of mode of operations: 1, conventional pointing-type: it is wild that the instruction of laser designation unit specifically has canonical sized ion beam irradiation, as 10 × 10cm during its work
2irradiation field; 2, initiatively delineate pattern: laser designation unit simulates the wild profile sample point of ion beam irradiation according to the equidistant sample point driving laser light sources of tumor target projected outline 5 with dot pattern, namely the wild profile 6 of light is formed, help to determine the profile of tumor target at body surface projection, or coordinate multi-leaf optical grating configuration, by the matching degree between the relation comparison multi-leaf optical grating configuration of the parallel line of ion and tumor target projected outline.Laser designation mechanism passes through translation base 2 global displacement where necessary to increase laser designation resolution, improves the accuracy describing irradiation field.Laser designation mechanism is communicated with TPS data base or other medical information data storehouses by DICOM (DICOMRT) communication protocol and RS232 serial interface communication mode, obtains the data such as irradiation field data or target area projected outline.
As shown in Figure 3, described a kind of wild indicating means of directional light of simulating ion beam launched field, is characterized in comprising the steps:
(1) functional mode is selected, and the work functions pattern of the wild indicating device of directional light is divided into conventional launched field pointing-type and initiatively delineates pattern, when selecting conventional launched field pointing-type, directly reading launched field data and carrying out laser positioning instruction;
(2) when select initiatively delineate pattern time, first data communication is carried out with ion beam therapy planning system (or irradiating control system) by DICOM (DICOMRT) communication protocol and RS232 serial interface communication mode, obtain the target area projected outline data of tumor target on beam direction or irradiation field outline data, outline data comprises the file header and coordinate data of indicating Data Source, attribute, transition matrix;
(3) be optimized calculating and obtain laser positioning data, driving laser light source carries out the instruction of laser fixed point; Adopt polygon scan filling algorithm, obtain the LASER Light Source direction of motion and the intersection point locator data of contour line, after the calculating such as Coordinate Conversion, convert LASER Light Source displacement data to, servomotor accordingly driving laser lamp motion to assigned address; (4) when the laser positioning precision needing raising irradiation field to delineate, the repeatedly optimization adopting the optimized algorithm in third step to carry out laser positioning data according to translation base global displacement data calculates, obtain the intersection point locator data of the more intensive LASER Light Source direction of motion of arrangement and contour line, convert LASER Light Source displacement data rear drive LASER Light Source to and carry out repeatedly the instruction of laser fixed point; Repeatedly laser fixed point instruction, anchor point is more intensive, makes to draw line segment and real contour line matching degree is higher, and irradiation field is delineated more accurate; Optimized algorithm generally adopts polygon scan filling algorithm, the intersection point locator data of the LASER Light Source direction of motion and contour line is obtained after Coordinate Conversion etc. calculates, convert LASER Light Source displacement data to, servomotor accordingly driving laser lamp motion to assigned address;
(5) connect each anchor point by pointwise, complete irradiation field and initiatively delineate program.
As shown in Fig. 4,5 and 6, described a kind of wild indicating means of directional light of simulating launched field, basic input data carry out data communication by laser designation mechanism and ion beam therapy planning system (or irradiating control system) by DICOM (DICOMRT) communication protocol and RS232 serial interface communication mode, target area projected outline data on beam direction of the tumor target of acquisition or irradiation field outline data; Outline data comprises the file header and coordinate data of indicating Data Source, attribute, transition matrix etc.Be shown in Fig. 4, laser designation mechanism by communication protocol from the CAS Institute of Modern Physics have that the heavy ion three dimensional radiotherapy treatment planning system (HIRTPS) of independent intellectual property right obtains based on 20 × 20 virtual × 20cm
3the target area that rule Water ball is delineated, target area maximal projection profile on the beam direction utilizing the projection algorithm of Three-dimension Reconstruction Model to obtain.
As shown in Figure 5, laser designation mechanism is optimized to calculate and obtains laser positioning data, and driving laser light source carries out the instruction of laser fixed point; Adopt polygon scan filling algorithm, the intersection point locator data of the first acquisition LASER Light Source direction of motion and contour line is totally 7 right, often couple of anchor point lateral separation 10mm, after Coordinate Conversion etc. calculates, convert LASER Light Source displacement data to, drive motors accordingly driving laser light sources indicates the first anchor point of irradiation field profile with equidistant dot pattern on Water ball surface.Connect the relative laser designation unit (totally 14 laser positioning points) of 7 groups of interval 10mm on Water ball surface and can form the wild profile of primary irradiation.In figure, the wild profile of visible primary irradiation is compared with irradiation field projected outline, and line-fitting degree is lower, and resolution is 10mm, and conformal goodness of fit is poor.
As shown in Figure 6, for increasing laser designation resolution, improve accuracy and the matching degree of initiatively delineating irradiation field, by the motion of translation base, laser designation whole mechanism is shifted 5mm to x-axis negative direction, subsequently according to data parameters and file generated second positioning data, laser designation mechanism indicates irradiation field profile second positioning point with equidistant dot pattern on Water ball surface equally.The irradiation field profile that namely 7 groups of laser positioning points define more smoothly, goodness of fit is higher connecting primary laser anchor point on Water ball surface and increase newly, the resolution of now laser positioning is 5mm, and conformal matching degree is compared the profile of irradiation field shown in Fig. 5 and is doubled.
By that analogy, can continue, with less step-length translation (or rotation) laser designation mechanism, to obtain less positioning resolution, sketch out the irradiation field profile that the goodness of fit of more pressing close to theoretical projected outline is higher.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (4)
1. simulate the wild indicating device of directional light of ion beam launched field, it is characterized in that comprising rotating base, described rotating base is provided with translation base, translation base is provided with two groups of parallel beam laser designation unit of relative motion; The matrix structure that the equidistant close-packed arrays of laser designation bar that described parallel beam laser designation unit is formed by multiple motor servo driver connection LASER Light Source is formed, LASER Light Source is arranged on motor servo driver front end, single LASER Light Source is laterally driven by motor servo driver and arrives irradiation field profile and moving line intersection point, LASER Light Source longitudinally sends laser rays and indicates along beam direction, and two groups of laser designation unit simulate irradiation field profile according to the equidistant sample point driving laser light sources of irradiation field configuration profile with dot pattern and form light open country.
2. a kind of wild indicating device of directional light of simulating ion beam launched field according to claim 1, is characterized in that: described rotating base realizes revolving turnback around beam axis with the step-length of 0.5 degree; Translation base is with the step-length of 0.2mm along guide rail movement 10-20mm, and the translation base direction of motion is vertical with beam axis; Parallel beam laser designation unit motion direction is vertical with beam axis, vertical with translation base direction of displacement; The motion of translation base, rotating base and laser designation bar three achieves the three-degree-of-freedom motion of laser designation bar.
3. a kind of wild indicating device of directional light of simulating ion beam launched field according to claim 1, it is characterized in that: described LASER Light Source is auto-collimation laser diode, the Laser emission direction of LASER Light Source is vertical with motor movement direction, parallel with beam direction.
4. a kind of wild indicating means of directional light of simulating ion beam launched field according to claim 1, is characterized in comprising the steps:
(1) functional mode is selected, and the work functions pattern of the wild indicating device of directional light is divided into conventional launched field pointing-type and initiatively delineates pattern, when selecting conventional launched field pointing-type, directly reading launched field data and carrying out laser positioning instruction;
(2) when select initiatively delineate pattern time, first data communication is carried out with ion beam therapy planning system (or irradiating control system) by DICOM (DICOMRT) communication protocol and RS232 serial interface communication mode, obtain the target area projected outline data of tumor target on beam direction or irradiation field outline data, outline data comprises the file header and coordinate data of indicating Data Source, attribute, transition matrix;
(3) be optimized calculating and obtain laser positioning data, driving laser light source carries out the instruction of laser fixed point; Adopt polygon scan filling algorithm, obtain the LASER Light Source direction of motion and the intersection point locator data of irradiation field contour line, after the calculating such as Coordinate Conversion, convert LASER Light Source displacement data to, servomotor accordingly driving laser lamp motion to assigned address;
(4) when the laser positioning precision needing raising irradiation field to delineate, the repeatedly optimization adopting the optimized algorithm in third step to carry out laser positioning data according to translation base global displacement data calculates, obtain the intersection point locator data of the more intensive LASER Light Source direction of motion of arrangement and irradiation field contour line, convert LASER Light Source displacement data rear drive LASER Light Source to and carry out repeatedly the instruction of laser fixed point; Repeatedly to cause anchor point to distribute more intensive for the instruction of laser fixed point, makes to draw line segment and real contour line matching degree is higher, and irradiation field is delineated more accurate; Optimized algorithm generally adopts polygon scan filling algorithm, the intersection point locator data of the LASER Light Source direction of motion and irradiation field contour line is obtained after Coordinate Conversion etc. calculates, convert LASER Light Source displacement data to, servomotor accordingly driving laser lamp motion to assigned address;
(5) connect each anchor point by pointwise, complete irradiation field and initiatively delineate program.
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| CN107510896A (en) * | 2017-09-18 | 2017-12-26 | 苏州雷泰医疗科技有限公司 | It is a kind of to be used for the radiotherapy equipment with launched field boundary marking function |
| CN107510897A (en) * | 2017-09-18 | 2017-12-26 | 苏州雷泰医疗科技有限公司 | A kind of radiotherapy equipment with new launched field boundary marking function |
| CN107519584A (en) * | 2017-09-18 | 2017-12-29 | 苏州雷泰医疗科技有限公司 | Radiotherapy equipment with launched field boundary marking function |
| CN109464753A (en) * | 2018-10-12 | 2019-03-15 | 高飞 | The radiation beam guiding mechanism of radiotherapy apparatus |
| CN109745634A (en) * | 2018-12-25 | 2019-05-14 | 江苏海明医疗器械有限公司 | A kind of medical accelerator multi-diaphragm collimator test device |
| CN110141800A (en) * | 2019-05-10 | 2019-08-20 | 苏州雷泰医疗科技有限公司 | A kind of accelerator light carpenters square equipment, scaling method and optical moment ruler generation method |
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| CN107510896A (en) * | 2017-09-18 | 2017-12-26 | 苏州雷泰医疗科技有限公司 | It is a kind of to be used for the radiotherapy equipment with launched field boundary marking function |
| CN107510897A (en) * | 2017-09-18 | 2017-12-26 | 苏州雷泰医疗科技有限公司 | A kind of radiotherapy equipment with new launched field boundary marking function |
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| CN109464753A (en) * | 2018-10-12 | 2019-03-15 | 高飞 | The radiation beam guiding mechanism of radiotherapy apparatus |
| CN109464753B (en) * | 2018-10-12 | 2020-10-27 | 高飞 | Radiation beam guiding mechanism of radiotherapy apparatus |
| CN109745634A (en) * | 2018-12-25 | 2019-05-14 | 江苏海明医疗器械有限公司 | A kind of medical accelerator multi-diaphragm collimator test device |
| CN110141800A (en) * | 2019-05-10 | 2019-08-20 | 苏州雷泰医疗科技有限公司 | A kind of accelerator light carpenters square equipment, scaling method and optical moment ruler generation method |
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