CN204170301U - Radiotherapy system - Google Patents
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- CN204170301U CN204170301U CN201420605966.3U CN201420605966U CN204170301U CN 204170301 U CN204170301 U CN 204170301U CN 201420605966 U CN201420605966 U CN 201420605966U CN 204170301 U CN204170301 U CN 204170301U
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Abstract
This utility model relates to a kind of radiotherapy medical equipment, particularly relate to a kind of radiotherapy system, comprise five degree of freedom O-arm radiotherapy system and six-freedom parallel radiation therapeutical bed, wherein, five degree of freedom O-arm radiotherapy system comprises O-arm motion, linear accelerating apparatus, radiation dose checkout gear and two X-ray machine image detent mechanism, and O-arm motion comprises O-arm, accelerator gearshift, swing offset device, flip bit moving device, horizontal cross gearshift and horizontal length travel device; Two X-ray machine image detent mechanism comprises X-ray emitter and X-ray receptor; Six-freedom parallel radiation therapeutical bed comprises base assembly, link assembly and chair assembly; Radiotherapy system of the present utility model realizes five degree of freedom control radiation therapy process, control accuracy is higher and degree of stability is higher, radiation therapeutical bed spatial pose is comparatively flexible and positioning precision is high.
Description
Technical field
This utility model relates to a kind of radiotherapy medical equipment, particularly relates to a kind of radiotherapy system.
Background technology
Tumor is one of principal disease of harm humans health.The Main Means of current treatment tumor has three: operation, radiation and Drug therapy, the tissue wherein using radiation to destroy pathological changes is widely used method in radiological medicine, WHO Report has the tumor of 45% to cure, and the tumor that wherein radiotherapy can be cured reaches 18%.For being employed herein the equipment utilizing high-energy electromagnetic radiation (X-radiation, gamma radiation) or particle radiation (electronics, proton, carbon ion).In radiocurable process, require accurately to locate to ensure to make body region to be illuminated tumor particularly to be illuminated be subject to sufficiently high radiation dose to patient, but damage the health tissues of patient as few as possible simultaneously, this radiation be used in kilovolt (kV) energy range generally by x-ray imaging method is carried out, undertaken by computer tomography especially, the radiation used in radiotherapy subsequently is then typically positioned at the energy range of megavolt (MV).
Chinese Patent Application No. is the utility model patent of CN200710005399.2, disclose a kind of radiotherapy system, comprise tumble drive unit, O ring, mobile gantry, head tremor pendulum device and irradiation unit, wherein, irradiation unit is irradiation treatment lonizing radiation under the control of radiotherapy equipment controller, and this radiotherapy line can utilize mobile and rotate and the center such as to be irradiated to from either direction; Tumble drive unit supports O ring in substrate support, and O ring can be rotated around rotating shaft, and radiotherapy equipment also comprises mobile driver element, and this moves driver element under the control of radiotherapy equipment controller around rotating shaft gantry in rotary moving; But this radiotherapy system, the controllable degrees of freedom of its radiation therapy process is more, but the quality of O ring is usually larger, tumble drive unit for supporting O ring is difficult to the rotation of accurately control O ring, the rotation of adding mobile gantry will cause the Mass Distribution of O ring left and right sides uneven, and control accuracy is difficult to be effectively guaranteed.Chinese Patent Application No. is the utility model patent of CN201310115139.6, disclose a kind of Noninvasive radiotherapy system for robot, six degree of freedom G arc real-time imaging system is by G arc, G arm slide rail, the rotating shaft of G arm, G arm pitch axis is connected successively with G arm slide, x-ray source and the dynamic flat panel detector of X-ray are one group, two groups of correspondences are arranged in G arc, G arm slide is arranged in track, on the sky rail of track installation on therapeutic room's ceiling or ground, G arc can move up and down, the bootable two groups of x-ray sources of G arm slide rail and the dynamic flat panel detector of X-ray do the motion being greater than 90 degree, G arc can be rotated around G arm rotating shaft ± 90 °, can around G arm pitch axis swing ± 15 °, but in this radiotherapy system, G arc real-time imaging mass of system is but installed on the ceiling comparatively greatly usually, not only high requirement is proposed to the enabling capabilities of ceiling and installing/dismounting is comparatively inconvenient, simultaneously, what the mode of upper support made G arc easily occur going up largely in rotary course rocks, and affects radiocurable precision.
Existing radiotherapy system is described above, usually only irradiation unit is designed, make it have the feature of multiple degrees of freedom movement, and be generally fixing with the matching used radiation therapeutical bed of radiotherapy head or only there is the function of single-way moving, Chinese patent notification number is the utility model patent of CN202876109U, namely a kind of therapeutic bed of such radiotherapy system is disclosed, comprise longitudinal sliding motion bed board, longitudinal side rails, longitudinal sliding motion slide block, laterally slide bed board, detection probe, lifting bed board, pedestal, longitudinal sliding motion bed board is positioned at the top of longitudinal sliding motion slide block, longitudinal side rails is connected with longitudinal sliding motion skid, horizontal slip bed board is positioned at the below of longitudinal side rails, detection probe is fixed on one end of horizontal slip bed board, lifting bed board is positioned at the below of horizontal slip bed board, pedestal is positioned at the below of lifting bed board, but in use there is various problems in existing radiation therapeutical bed: 1) routine clinical radiotheraphy device is as X-ray machine, bore-60 therapy apparatuss, betatron, electron linear accelerator, cyclotron etc., its coverage field is limited, maximum coverage field is generally 40cm, the lesion region of some client need radiotherapy actual is elongated, length can reach 60cm (as spinal cord cancer), although can treat piecemeal by the method for launched field segmentation for the lesion region exceeding the maximum coverage field of equipment, but inevitably have the phenomenon that overlapping or some lesion region of coverage field fails to be irradiated, affect the treatment, and efficiency is very low, existing radiation therapeutical bed is difficult to the adjustment realizing large range displacement, to meet the requirement of coverage field, 2) the position random distribution at tumor place, very likely block by other organ, the pose by adjusting therapeutic bed is needed to reach best therapeutic effect with the treatment of partner treatment head, avoid health tissues to be damaged, and existing radiation therapeutical bed is difficult to the adjustment realizing angle, pose on a large scale.
Because above-mentioned defect, the design people, actively in addition research and innovation, to founding a kind of radiotherapy system of new structure, make it have more value in industry.
Utility model content
For solving the problems of the technologies described above, the purpose of this utility model is to provide and a kind ofly realizes that five degree of freedom controls radiation therapy process, control accuracy is higher and degree of stability is higher, radiation therapeutical bed spatial pose comparatively flexibly and the high radiotherapy system of positioning precision.
Radiotherapy system of the present utility model, comprises five degree of freedom O-arm radiotherapy system and six-freedom parallel radiation therapeutical bed, wherein,
Described five degree of freedom O-arm radiotherapy system, comprise O-arm motion, linear accelerating apparatus, radiation dose checkout gear and two X-ray machine image detent mechanism, described O-arm motion comprises O-arm, accelerator gearshift, swing offset device, flip bit moving device, horizontal cross gearshift and horizontal length travel device; Described horizontal length travel device, comprise the first power unit of the first slide rail, the first slide and driving the first slide relative sliding on the first slide rail being arranged on O-arm both sides, described first slide rail and the first slide are two groups; Described horizontal cross gearshift, comprise the second slide rail be arranged on the first slide, the second slide and drive the second power unit of the second slide relative sliding on the second slide rail, described second slide rail and the second slide are two groups, and described second slide is mutually vertical with the glide direction of the first slide; Described flip bit moving device, comprise and being arranged on the second slide and the 3rd power unit for overturning described swing offset device, the upset plane of described swing offset device is mutually vertical with the glide direction of described second slide; Described swing offset device, comprise the overturning seat and the 4th power unit that are arranged on the 3rd power unit outfan, described O-arm is arranged on described in two groups between overturning seat, and described 4th power unit is for driving the relative displacement of described O-arm on described overturning seat; Described linear accelerating apparatus is arranged in described O-arm by described accelerator gearshift, described accelerator gearshift is for driving described linear accelerating apparatus towards the relative displacement of described O-arm center, and described radiation dose checkout gear is arranged on the opposite side of relatively described linear accelerating apparatus in O-arm; Described pair of X-ray machine image detent mechanism comprises the X-ray emitter be arranged in O-arm and the X-ray receptor being arranged on relative X-ray emitter opposite side in O-arm, and described X-ray emitter and X-ray receptor are two groups.
Described six-freedom parallel radiation therapeutical bed, comprises base assembly, link assembly and chair assembly, wherein, and base assembly, the power unit comprising base, be disposed side by side on many slide rails on base and be fixed on base; Link assembly, comprises slide and connecting rod, described slide under the driving of described power unit on described slide rail relative sliding, bottom and the described slide of described connecting rod are rotatedly connected; Chair assembly, comprises main bed board, and top and the described main bed board of described connecting rod are rotatedly connected.
Further, the side of described O-arm is provided with the chute of multiple annular, and the both sides of the rear and front end of described overturning seat are all fixed with limiting plate, and the inner side of described limiting plate is provided with and is installed in chute and the slide block of relative sliding.
Further, described first power unit comprises the first servomotor, the first screw mandrel and the first screw rod bushing, described first screw mandrel is arranged on the outfan of described first servomotor and is parallel to each other with described first slide rail, described first screw rod bushing is fixed on the bottom of the first slide, and described first screw rod bushing relatively rotates on the first screw mandrel.
Further, described second power unit comprises the second servomotor, the second screw mandrel and the second screw rod bushing, described second screw mandrel is arranged on the outfan of described second servomotor and is parallel to each other with described second slide rail, described second screw rod bushing is fixed on the bottom of the second slide, and described second screw rod bushing relatively rotates on the second screw mandrel.
Further, described 3rd power unit comprises the 3rd servomotor be fixed on the second slide, and described overturning seat is fixed on the outfan of described 3rd servomotor.
Further, described 4th power unit comprises the 4th servomotor be fixed on overturning seat and the driving gear being arranged on the 4th servomotor outfan, the lateral surface of described O-arm is provided with Timing Belt, described 4th servomotor by the cooperatively interacting of driving gear and Timing Belt, drive the relative displacement of described O-arm on overturning seat.
Further, described accelerator gearshift comprises the seat board be fixed in O-arm, the 5th servomotor be fixed on seat board, multiple 3rd screw rod bushings of being vertically fixed on multiple 3rd screw mandrel bottom seat board and being fixed on linear accelerating apparatus, and described 3rd screw rod bushing relatively rotates on the 3rd screw mandrel.
Further, described slide rail is six, and wherein three slide rails are set in parallel in the front side end face of described base, and other three slide rails are set in parallel in the rear side end face of described base, described link assembly is six groups, and the slide of link assembly described in six groups relative sliding on corresponding slide rail.
Further, described base assembly also comprise be arranged on front side of base with the bearing spider of rear side end face and the screw mandrel that be arranged in parallel with slide rail, in the middle part of the end face of described base described power unit is set between described extreme, one end of described screw mandrel is arranged on described bearing spider by bearing, and the other end of described screw mandrel is connected with described power unit transmission; The bottom of described slide is provided with nut sleeve, and described nut sleeve and described screw mandrel relatively rotate.
Further, the bottom of described connecting rod is rotatedly connected by the first cross axle and described slide, and the bottom of described connecting rod is rotatedly connected by the Hooke's hinge bottom the second cross axle and described main bed board.
Concrete, be provided with bearing between Hooke's hinge between bottom described first cross axle and described connecting rod, between the first cross axle and slide, between the second cross axle and connecting rod top and bottom the second cross axle and main bed board.
Further, described connecting rod comprises connecting rod and lower link, thrust bearing is provided with between the top of described lower link and upper connecting rod bottom, and the bottom of described lower link is also provided with the end cap for limiting upper connecting rod and lower link relative position, be also provided with outside described lower link top and the copper sheathing matched bottom upper connecting rod.
Further, described chair assembly also comprises middle bed board, and described middle bed board and described main bed board are fixedly linked, and described main bed board is master metal bed board, and described middle bed board is bed board in the middle of carbon fiber.
Further, described chair assembly also comprises additional bed board, and described additional bed board is fixed on the end of described middle bed board by hanging fixture.
By such scheme, this utility model at least has the following advantages: in five degree of freedom O-arm radiotherapy system, the first power unit drives O-arm along the displacement of horizontal longitudinal direction, second power unit drives O-arm along the displacement of horizontal transverse direction, 3rd power unit drives O-arm to realize flip-flop movement, 4th power unit drives O-arm to realize the rotation of centrally position, accelerator gearshift drives linear accelerating apparatus along the relative movement towards O-arm center, like this, by the adjustment of five degree of freedom, the radiation therapy process of all-dimensional multi-angle can be realized, control accuracy is higher and degree of stability is higher, two X-ray machine image detent mechanism, the radiation be used in kilovolt (kV) energy range by x-ray imaging method is carried out, and the radiation that linear accelerating apparatus and radiation dose checkout gear use in radiotherapy is positioned at the energy range of megavolt (MV).Meanwhile, six-freedom parallel radiation therapeutical bed overcomes the defect that existing radiation therapeutical bed spatial pose is dumb, positioning precision is low, bearing capacity is poor, radiotherapy system of the present utility model, pose is flexible, positioning precision is high, bearing capacity is strong, can meet the requirement of precise radiotherapy.
Above-mentioned explanation is only the general introduction of technical solutions of the utility model, in order to better understand technological means of the present utility model, and can be implemented according to the content of description, coordinates accompanying drawing to be described in detail as follows below with preferred embodiment of the present utility model.
Accompanying drawing explanation
Fig. 1 is the front view of this utility model radiotherapy system;
Fig. 2 is the rearview of this utility model radiotherapy system;
Fig. 3 is the side view of this utility model radiotherapy system;
Fig. 4 is the partial enlarged drawing in A portion in Fig. 1;
Fig. 5 is the partial enlarged drawing in B portion in Fig. 2;
Fig. 6 is the partial enlarged drawing in C portion in Fig. 3;
Fig. 7 is the structural representation of six-freedom parallel radiation therapeutical bed in this utility model radiotherapy system;
Fig. 8 is the side view of six-freedom parallel radiation therapeutical bed in this utility model radiotherapy system;
Fig. 9 is the structural representation of link assembly in this utility model radiotherapy system;
Figure 10 is the structural representation of upper connecting rod and lower link junction in this utility model radiotherapy system;
Figure 11 is the structural representation of middle bed board and additional bed board junction in this utility model radiotherapy system.
Detailed description of the invention
Below in conjunction with drawings and Examples, detailed description of the invention of the present utility model is described in further detail.Following examples for illustration of this utility model, but are not used for limiting scope of the present utility model.
In description of the present utility model, it will be appreciated that, term " " center ", " longitudinal direction ", " transverse direction ", " length ", " width ", " thickness ", " on ", D score, " front ", " afterwards ", " left side ", " right side ", " vertically ", " level ", " top ", " end " " interior ", " outward ", " clockwise ", orientation or the position relationship of the instruction such as " counterclockwise " are based on orientation shown in the drawings or position relationship, only this utility model and simplified characterization for convenience of description, instead of indicate or imply that the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore can not be interpreted as restriction of the present utility model.
In addition, term " first ", " second " only for describing object, and can not be interpreted as instruction or hint relative importance or imply the quantity indicating indicated technical characteristic.Thus, be limited with " first ", the feature of " second " can express or impliedly comprise one or more these features.In description of the present utility model, the implication of " multiple " is two or more, unless otherwise expressly limited specifically.
In this utility model, unless otherwise clearly defined and limited, the term such as term " installation ", " being connected ", " connection ", " fixing " should be interpreted broadly, and such as, can be fixedly connected with, also can be removably connect, or integral; Can be mechanical connection, also can be electrical connection; Can be directly be connected, also indirectly can be connected by intermediary, can be the connection of two element internals or the interaction relationship of two elements.For the ordinary skill in the art, the concrete meaning of above-mentioned term in this utility model can be understood as the case may be.
In this utility model, unless otherwise clearly defined and limited, fisrt feature second feature it " on " or D score can comprise the first and second features and directly contact, also can comprise the first and second features and not be directly contact but by the other characterisation contact between them.And, fisrt feature second feature " on ", " top " and " above " comprise fisrt feature directly over second feature and oblique upper, or only represent that fisrt feature level height is higher than second feature.Fisrt feature second feature " under ", " below " and " below " comprise fisrt feature immediately below second feature and tiltedly below, or only represent that fisrt feature level height is less than second feature.
See Fig. 1 to Fig. 6, radiotherapy system of the present utility model, comprise five degree of freedom O-arm radiotherapy system and six-freedom parallel radiation therapeutical bed, wherein, five degree of freedom O-arm radiotherapy system, comprise O-arm motion, linear accelerating apparatus 101, radiation dose checkout gear 102 and two X-ray machine image detent mechanism, O-arm motion comprises O-arm 201, accelerator gearshift, swing offset device, flip bit moving device, horizontal cross gearshift and horizontal length travel device.
Horizontal length travel device, the first power unit 213, first slide rail 211 and the first slide 212 that comprise the first slide rail 211, first slide 212 and driving the first slide 212 relative sliding on the first slide rail 211 being arranged on O-arm both sides are two groups; The implementation of the first power unit is multiple, such as, 1) mode adopting hydraulic jack to promote, the first power unit is hydraulic jack, and the first slide is arranged on the outfan of hydraulic jack, is promoted the relative sliding of the first slide by hydraulic jack; 2) adopt the mode of teeth occlusion, the first power unit is motor, and the outfan of motor is provided with gear, the first slide is provided with the teeth matched with gear, is driven the relative sliding of the first slide by the rotation of gear; 3) mode of screw mandrel is adopted, first power unit comprises the first servomotor, the first screw mandrel 214 and the first screw rod bushing (not shown), first screw mandrel 214 is arranged on the outfan of the first servomotor and is parallel to each other with the first slide rail 211, first screw rod bushing is fixed on the bottom of the first slide 212, and the first screw rod bushing relatively rotates on the first screw mandrel 214.These are only the preferred implementation of the first power unit; be not limited to this utility model; it should be pointed out that every first power unit that can realize driving first slide relative sliding on the first slide rail, protection domain of the present utility model all should be fallen into.In addition, due to the horizontal length travel device of O-arm wherein side, arrange the first power unit and can realize above-mentioned functions, thus the first power unit is set to one group or two groups.
Horizontal cross gearshift, comprise the second slide rail 221, second slide 222 be arranged on the first slide 212 and the second power unit 223 driving the second slide 222 relative sliding on the second slide rail 221, second slide rail 221 and the second slide 222 are two groups, and the second slide 222 is mutually vertical with the glide direction of the second slide 212; The implementation of the second power unit is multiple, such as, 1) mode adopting hydraulic jack to promote, the second power unit is hydraulic jack, and the second slide is arranged on the outfan of hydraulic jack, is promoted the relative sliding of the second slide by hydraulic jack; 2) adopt the mode of teeth occlusion, the second power unit is motor, and the outfan of motor is provided with gear, the second slide is provided with the teeth matched with gear, is driven the relative sliding of the second slide by the rotation of gear; 3) mode of screw mandrel is adopted, second power unit comprises the second servomotor, the second screw mandrel 224 and the second screw rod bushing (not shown), second screw mandrel 224 is arranged on the outfan of the second servomotor and is parallel to each other with the second slide rail 221, second screw rod bushing is fixed on the bottom of the second slide 222, and the second screw rod bushing relatively rotates on the second screw mandrel 224.These are only the preferred implementation of the second power unit; be not limited to this utility model; it should be pointed out that every first power unit that can realize driving first slide relative sliding on the first slide rail, protection domain of the present utility model all should be fallen into.In addition, due to the horizontal cross gearshift of O-arm wherein side, arrange the second power unit and can realize above-mentioned functions, thus the second power unit is set to one group or two groups.
Flip bit moving device, comprise and being arranged on the second slide 222 and the 3rd power unit 231 for overturning swing offset device, the upset plane of swing offset device is mutually vertical with the glide direction of the second slide 222; The implementation of flip bit moving device is multiple, such as, swing offset device connects driven gear, and arranges driving gear at the outfan of the 3rd power unit, is controlled by the mode of gears meshing; Comparatively simple, controlled by the mode of electric machine rotation, that is, the 3rd power unit comprises the 3rd servomotor be fixed on the second slide, and overturning seat is fixed on the outfan of the 3rd servomotor.These are only the preferred implementation of flip bit moving device, be not limited to this utility model, it should be pointed out that every flip bit moving device that can realize driving upset swing offset device, protection domain of the present utility model all should be fallen into.In addition, due to the flip bit moving device of O-arm wherein side, arrange the 3rd power unit and can realize above-mentioned functions, thus the 3rd power unit is set to one group or two groups.
Swing offset device, comprise the overturning seat 241 and the 4th power unit 242 that are arranged on the 3rd power unit 231 outfan, O-arm 201 is arranged between two groups of overturning seats 241, and the 4th power unit 242 is for driving the relative displacement of O-arm 201 on overturning seat 241; Swing offset device is for the rotary actuation of O-arm, implementation has multiple, comparatively simple and stable, 4th power unit comprises the 4th servomotor be fixed on overturning seat 241 and the driving gear 243 being arranged on the 4th servomotor outfan, the lateral surface of O-arm 201 is provided with Timing Belt 244, the 4th servomotor by the cooperatively interacting of driving gear 243 and Timing Belt 244, drive the relative displacement of O-arm 201 on overturning seat 241.These are only the preferred implementation of swing offset device, be not limited to this utility model, it should be pointed out that every swing offset device that can realize driving O-arm to rotate, protection domain of the present utility model all should be fallen into.In order to effectively stablize the slip of O-arm 201 on overturning seat 241 accurately to control, five degree of freedom O-arm radiotherapy system of the present utility model, the side of O-arm 201 is provided with the chute 245 of multiple annular, the both sides of the rear and front end of overturning seat 241 are all fixed with limiting plate 246, and the inner side of limiting plate 246 is provided with and is installed in chute and the slide block of relative sliding.In addition, due to the swing offset device of O-arm wherein side, arrange the 4th power unit and can realize above-mentioned functions, thus the 4th power unit is set to one group or two groups.
Linear accelerating apparatus 101 is arranged in O-arm 201 by accelerator gearshift, accelerator gearshift is for driving linear accelerating apparatus 101 towards the relative displacement of O-arm 201 center, and radiation dose checkout gear 102 is arranged on the opposite side of relative rectilinear accelerator installation 101 in O-arm 201; Two X-ray machine image detent mechanism comprises the X-ray emitter 103 be arranged in O-arm 201 and the X-ray receptor 104 being arranged on relative X-ray emitter 103 opposite side in O-arm 201, and X-ray emitter 103 and X-ray receptor 104 are two groups.The implementation of accelerator gearshift has multiple, comparatively simple and stable, accelerator gearshift comprises the seat board 251 be fixed in O-arm, the 5th servomotor 252 be fixed on seat board, be vertically fixed on multiple 3rd screw mandrel 253 bottom seat board and multiple 3rd screw rod bushing the 254, three screw rod bushings 254 be fixed on linear accelerating apparatus relatively rotate on the 3rd screw mandrel 253.These are only the preferred implementation of accelerator gearshift, be not limited to this utility model, it should be pointed out that every accelerator gearshift that can realize driving the relative displacement of linear accelerating apparatus, protection domain of the present utility model all should be fallen into.
See Fig. 7 to Figure 11, six-freedom parallel radiation therapeutical bed in radiotherapy system of the present utility model, comprise base assembly 3, link assembly 4 and chair assembly 5, wherein, base assembly 3 power unit 303 that comprises base 301, be disposed side by side on many slide rails 302 on base and be fixed on base; Link assembly 4 comprises slide 401 and connecting rod 402, slide 401 under the driving of power unit 303 on slide rail 302 relative sliding, bottom and the slide 401 of connecting rod 402 are rotatedly connected; Chair assembly 5 comprises main bed board 501, and top and the main bed board 501 of connecting rod 402 are rotatedly connected; In order to realize six degree of freedom, multidigit appearance adjusts flexibly, slide rail 302 is six, wherein three slide rails 302 are set in parallel in the front side end face of base 301, other three slide rails 302 are set in parallel in the rear side end face of base, link assembly 4 is six groups, and the slide 401 of six groups of link assemblies 4 relative sliding on corresponding slide rail 302.
It should be noted that the embodiment of base assembly is various, every base assembly that can realize driving slide relative sliding on slide rail, all should fall into protection domain of the present utility model, such as, power unit is set to cylinder or hydraulic jack, and is connected with slide with the outfan of hydraulic jack by cylinder, in order to the stability that controls and degree of accuracy, radiotherapy system of the present utility model, base assembly 3 also comprise be arranged on front side of base 301 with the bearing spider 304 of rear side end face and the screw mandrel 305 that be arranged in parallel with slide rail 302, slide rail 302 and bearing spider 304 are arranged on the boss of base 301 end face, in the middle part of the end face of base 301 power unit 303 is set between slide rail 302 end, one end of screw mandrel 305 is arranged on bearing spider by bearing, the other end of screw mandrel 305 is connected with power unit 303 transmission, power unit is comparatively simply set to servomotor, the bottom of slide 401 is provided with nut sleeve (not shown), and nut sleeve and screw mandrel 305 relatively rotate, and by the servomotor forward or reverse that computer system control is different, controls the rotation of screw mandrel, and then the elevating movement of mobile link.
In order to realize connecting rod and freely rotating between slide and main bed board, radiotherapy system of the present utility model, the bottom of connecting rod 402 is rotatedly connected with slide 401 by the first cross axle 403, and the bottom of connecting rod 402 is rotatedly connected with the Hooke's hinge 407 bottom main bed board 501 by the second cross axle 404; Meanwhile, bearing 408 is provided with between Hooke's hinge between bottom the first cross axle 403 and connecting rod 402, between the first cross axle 403 and slide 401, between the second cross axle 404 and connecting rod 402 top and bottom the second cross axle 404 and main bed board 501.
Radiotherapy system of the present utility model, connecting rod 402 comprises connecting rod 405 and lower link 406, thrust bearing 409 is provided with between the top of lower link 406 and upper connecting rod 405 bottom, and the bottom of lower link 405 is also provided with for limiting upper connecting rod 405 and the end cap 410 of lower link 406 relative position, is also provided with and the copper sheathing 411 matched bottom upper connecting rod 405 outside lower link 405 top; Utilize the circumference location of the upper connecting rod of copper sheathing realization, utilize thrust bearing to realize the axial location of upper connecting rod, utilize the fastening of the upper connecting rod of end cap realization, lower link.
Radiotherapy system of the present utility model, chair assembly 5 also comprises middle bed board 502 and additional bed board 503, and middle bed board and main bed board are fixedly linked, and additional bed board is fixed on the end of middle bed board by hanging fixture, main bed board is master metal bed board, and middle bed board is bed board in the middle of carbon fiber; When treating head and carrying out radiotherapy, can not have metal material between treatment head and the receptor below it, metal material can affect the imaging in receptor, in order to save carbon fibre material, bed board is designed to three-stage structure.Main bed board is metal material, and middle bed board is carbon fibre material, and front two sections of bed boards are connected by screw together, when treatment of a head, only needs this two sections of bed boards.When needs treatment thorax abdomen, when will add bed board installation, owing to not adopting metal material, therefore both being connected by similar buckle structure, installation and removal all rotate a certain angle and can complete.
Workflow of the present utility model is: 1) data acquisition and Modling model: adjustment O-arm and radiation therapeutical bed, gathers multi-mode image by the two X-ray machine image detent mechanism x-ray of O-arm; Founding mathematical models; With the definition of location coordinate and scale, carry out the collection of radiotherapy system physical dosage parameter; 2) pretreatment before radiotherapy: registration multi-mode image and mathematical model being carried out multi-mode image, again with coordinate system in conjunction with Modling model and dynamic three-dimensional display, then formulate Radiation treatment plans in conjunction with radiotherapy system physical dosage parameter designing, carry out dynamic analog treatment overall process according to Radiation treatment plans and dynamic three-dimensional display; 3) process in radiotherapy: adjustment O-arm, the middle target area 3-D view that obtains medical treatment of combining with model and dynamic three-dimensional display, the in real time result of dosage verifying is again located and registration, carry out the intervention in therapeutic process and correction, and correction situation is returned Radiation treatment plans design construction step; Intervention in therapeutic process is treated overall process co-controlling with correction and dynamic analog and is carried out automatic track and localization irradiation.
The above is only preferred implementation of the present utility model; be not limited to this utility model; should be understood that; for those skilled in the art; under the prerequisite not departing from this utility model know-why; can also make some improvement and modification, these improve and modification also should be considered as protection domain of the present utility model.
Claims (10)
1. a radiotherapy system, is characterized in that: comprise five degree of freedom O-arm radiotherapy system and six-freedom parallel radiation therapeutical bed, wherein,
Described five degree of freedom O-arm radiotherapy system, comprise O-arm motion, linear accelerating apparatus, radiation dose checkout gear and two X-ray machine image detent mechanism, described O-arm motion comprises O-arm, accelerator gearshift, swing offset device, flip bit moving device, horizontal cross gearshift and horizontal length travel device; Described horizontal length travel device, comprise the first power unit of the first slide rail, the first slide and driving the first slide relative sliding on the first slide rail being arranged on O-arm both sides, described first slide rail and the first slide are two groups; Described horizontal cross gearshift, comprise the second slide rail be arranged on the first slide, the second slide and drive the second power unit of the second slide relative sliding on the second slide rail, described second slide rail and the second slide are two groups, and described second slide is mutually vertical with the glide direction of the first slide; Described flip bit moving device, comprise and being arranged on the second slide and the 3rd power unit for overturning described swing offset device, the upset plane of described swing offset device is mutually vertical with the glide direction of described second slide; Described swing offset device, comprise the overturning seat and the 4th power unit that are arranged on the 3rd power unit outfan, described O-arm is arranged on described in two groups between overturning seat, and described 4th power unit is for driving the relative displacement of described O-arm on described overturning seat; Described linear accelerating apparatus is arranged in described O-arm by described accelerator gearshift, described accelerator gearshift is for driving described linear accelerating apparatus towards the relative displacement of described O-arm center, and described radiation dose checkout gear is arranged on the opposite side of relatively described linear accelerating apparatus in O-arm; Described pair of X-ray machine image detent mechanism comprises the X-ray emitter be arranged in O-arm and the X-ray receptor being arranged on relative X-ray emitter opposite side in O-arm, and described X-ray emitter and X-ray receptor are two groups.
Described six-freedom parallel radiation therapeutical bed, comprises base assembly, link assembly and chair assembly, wherein, and base assembly, the power unit comprising base, be disposed side by side on many slide rails on base and be fixed on base; Link assembly, comprises slide and connecting rod, described slide under the driving of described power unit on described slide rail relative sliding, bottom and the described slide of described connecting rod are rotatedly connected; Chair assembly, comprises main bed board, and top and the described main bed board of described connecting rod are rotatedly connected.
2. radiotherapy system according to claim 1, it is characterized in that: the side of described O-arm is provided with the chute of multiple annular, the both sides of the rear and front end of described overturning seat are all fixed with limiting plate, and the inner side of described limiting plate is provided with and is installed in chute and the slide block of relative sliding.
3. radiotherapy system according to claim 1, it is characterized in that: described first power unit comprises the first servomotor, the first screw mandrel and the first screw rod bushing, described first screw mandrel is arranged on the outfan of described first servomotor and is parallel to each other with described first slide rail, described first screw rod bushing is fixed on the bottom of the first slide, and described first screw rod bushing relatively rotates on the first screw mandrel; Described second power unit comprises the second servomotor, the second screw mandrel and the second screw rod bushing, described second screw mandrel is arranged on the outfan of described second servomotor and is parallel to each other with described second slide rail, described second screw rod bushing is fixed on the bottom of the second slide, and described second screw rod bushing relatively rotates on the second screw mandrel.
4. radiotherapy system according to claim 1, is characterized in that: described 3rd power unit comprises the 3rd servomotor be fixed on the second slide, and described overturning seat is fixed on the outfan of described 3rd servomotor.
5. radiotherapy system according to claim 1, it is characterized in that: described 4th power unit comprises the 4th servomotor be fixed on overturning seat and the driving gear being arranged on the 4th servomotor outfan, the lateral surface of described O-arm is provided with Timing Belt, described 4th servomotor by the cooperatively interacting of driving gear and Timing Belt, drive the relative displacement of described O-arm on overturning seat.
6. radiotherapy system according to claim 1, it is characterized in that: described accelerator gearshift comprises the seat board be fixed in O-arm, the 5th servomotor be fixed on seat board, multiple 3rd screw rod bushings of being vertically fixed on multiple 3rd screw mandrel bottom seat board and being fixed on linear accelerating apparatus, and described 3rd screw rod bushing relatively rotates on the 3rd screw mandrel.
7. radiotherapy system according to claim 1, it is characterized in that: described slide rail is six, wherein three slide rails are set in parallel in the front side end face of described base, other three slide rails are set in parallel in the rear side end face of described base, described link assembly is six groups, and the slide of link assembly described in six groups relative sliding on corresponding slide rail; Described base assembly also comprise be arranged on front side of base with the bearing spider of rear side end face and the screw mandrel that be arranged in parallel with slide rail, in the middle part of the end face of described base described power unit is set between described extreme, one end of described screw mandrel is arranged on described bearing spider by bearing, and the other end of described screw mandrel is connected with described power unit transmission; The bottom of described slide is provided with nut sleeve, and described nut sleeve and described screw mandrel relatively rotate.
8. radiotherapy system according to claim 1, is characterized in that: the bottom of described connecting rod is rotatedly connected by the first cross axle and described slide, and the bottom of described connecting rod is rotatedly connected by the Hooke's hinge bottom the second cross axle and described main bed board.
9. radiotherapy system according to claim 1, it is characterized in that: described connecting rod comprises connecting rod and lower link, thrust bearing is provided with between the top of described lower link and upper connecting rod bottom, and the bottom of described lower link is also provided with the end cap for limiting upper connecting rod and lower link relative position, be also provided with outside described lower link top and the copper sheathing matched bottom upper connecting rod.
10. radiotherapy system according to claim 1, it is characterized in that: described chair assembly also comprises middle bed board and additional bed board, described middle bed board and described main bed board are fixedly linked, described additional bed board is fixed on the end of described middle bed board by hanging fixture, described main bed board is master metal bed board, and described middle bed board is bed board in the middle of carbon fiber.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420605966.3U CN204170301U (en) | 2014-10-20 | 2014-10-20 | Radiotherapy system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201420605966.3U CN204170301U (en) | 2014-10-20 | 2014-10-20 | Radiotherapy system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104307113A (en) * | 2014-10-20 | 2015-01-28 | 苏州大学张家港工业技术研究院 | Radiation therapy system |
| CN104771839A (en) * | 2015-04-30 | 2015-07-15 | 上海联影医疗科技有限公司 | Radiating therapeutic apparatus |
| CN109731240A (en) * | 2018-12-28 | 2019-05-10 | 郭震 | A kind of tumor-localizing device |
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2014
- 2014-10-20 CN CN201420605966.3U patent/CN204170301U/en active Active
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104307113A (en) * | 2014-10-20 | 2015-01-28 | 苏州大学张家港工业技术研究院 | Radiation therapy system |
| WO2016061877A1 (en) * | 2014-10-20 | 2016-04-28 | 苏州大学张家港工业技术研究院 | Radiation therapy system |
| CN104307113B (en) * | 2014-10-20 | 2017-01-25 | 苏州大学张家港工业技术研究院 | Radiation therapy system |
| US10293186B2 (en) | 2014-10-20 | 2019-05-21 | Soochow University | Radiation therapy system |
| CN104771839A (en) * | 2015-04-30 | 2015-07-15 | 上海联影医疗科技有限公司 | Radiating therapeutic apparatus |
| CN104771839B (en) * | 2015-04-30 | 2017-12-22 | 上海联影医疗科技有限公司 | radiotherapy apparatus |
| CN109731240A (en) * | 2018-12-28 | 2019-05-10 | 郭震 | A kind of tumor-localizing device |
| CN109731240B (en) * | 2018-12-28 | 2020-09-22 | 郭震 | Tumor positioning device |
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