CN217611105U - Detection apparatus for X ray beam axis is skew relative to isocenter - Google Patents
Detection apparatus for X ray beam axis is skew relative to isocenter Download PDFInfo
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- CN217611105U CN217611105U CN202220665623.0U CN202220665623U CN217611105U CN 217611105 U CN217611105 U CN 217611105U CN 202220665623 U CN202220665623 U CN 202220665623U CN 217611105 U CN217611105 U CN 217611105U
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Abstract
The utility model discloses a detection apparatus for X ray beam axis is for isocenter skew, the test platform comprises a support, frame one side is provided with the frame, and adopts the transmission shaft to be connected between frame and the frame, the bottom of frame top one end is provided with the X line target and penetrates the head, the bottom of frame one end is provided with the treatment bed, the one end of treatment bed is provided with film coordinate mechanism, the bottom of treatment bed is provided with the bedstand, the one end fixedly connected with carousel of bedstand. The utility model discloses a be equipped with film coordinate mechanism, be favorable to making this radiotherapy equipment realize fitting out the actual position of isocenter, solved the radiation beam axle and be difficult to the simultaneous measurement's a difficult problem for the isocenter skew, the device can also measure simultaneously and shine indexes such as wild digital indicator, the wild instruction of light and isocenter instruction, when setting up different angles to frame, aircraft nose and treatment bed simultaneously very much, all can realize measuring, easy operation, accuracy height.
Description
Technical Field
The utility model belongs to the technical field of medical equipment, in particular to detection device of X ray beam axis for the skew of isocenter.
Background
The medical accelerator is designed according to the isocentric principle, the treatment couch and the frame of the medical accelerator rotate around a common center, the X-ray beam axis passes through a minimum sphere which takes the point as the center, the point is the geometric isocenter of the medical accelerator, and the diameter of the sphere reflects the precision of the rotation center of the common center of the equipment. The problem of cancer is more serious in the present society, the radiation therapy by a medical accelerator becomes one of the most mature radiation therapy techniques, and as the primary factor to be considered in the quality assurance and quality control of the equipment, the accuracy of the position of the isocenter is crucial, and the accuracy of the position of the radiation therapy of the cancer patient is directly related; meanwhile, the digital indication, the light field indication and the isocenter indication of the irradiation field are also quality control detection indexes of the medical accelerator.
At present, the method for daily detection of the isocenter of the medical accelerator by each radiotherapy unit is generally similar, mostly, the isocenter is manually searched by using a laser indicator lamp and a light distance ruler of the medical accelerator, the methods are complex to operate and have large random errors, and a manufacturer spends long time and has high cost in strict regular detection of equipment specialties.
Therefore, in combination with years of detection experience, a detection device for detecting the deviation of the X-ray beam axis relative to the isocenter is invented to solve the problems, so as to be popularized and applied in the future.
SUMMERY OF THE UTILITY MODEL
To the above problem, the utility model provides a detection device of X ray beam axis for the skew of isocenter to solve the problem that proposes in the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a detection apparatus for X ray beam axis is for isocenter skew, includes the frame, frame one side is provided with the frame, and adopts the transmission shaft to be connected between frame and the frame, the bottom of frame top one end is provided with the X line target and penetrates the head, the bottom of frame one end is provided with the treatment bed, the one end of treatment bed is provided with film coordinate mechanism, the bottom of treatment bed is provided with the bedstand, the one end fixedly connected with carousel of bedstand.
Further, film coordinate mechanism includes U-shaped cardboard and preceding pointer, U-shaped cardboard one end joint at treatment bed tip, and with adopt bolt fixed connection between the treatment bed, the shifting chute has been seted up to the U-shaped cardboard other end, the inside sliding connection of shifting chute has the connecting rod, connecting rod one end is rotated and is connected with the rotation axis, and is provided with the calibrated scale between connecting rod and the rotation axis, the first film panel of rotation axis tip fixedly connected with, first film panel surface is provided with the second film panel.
Furthermore, the other end of the connecting rod is provided with a limiting disc, the outer diameter of the limiting disc is larger than the inner diameter of the moving groove, the surface of the connecting rod is in threaded sleeve connection with a locking nut, one side of the dial is fixedly connected with the end of the connecting rod, and the surface of the rotating shaft is in threaded sleeve connection with a fastening nut.
Furthermore, the connecting rod is located the equal fixedly connected with locating piece in a section both sides of shifting chute inside, and the shifting chute is inside seted up with locating piece assorted constant head tank.
Furthermore, the front pointer, the central axis of the first film panel and the central axis of the rotary table are the same axis, the X-ray target shooting head is arranged in parallel with the first film panel, and the front pointer is fixedly connected with the rack through a fixing frame.
Further, the edge position of the first film panel further comprises a level gauge, the surface of the level gauge is provided with scale marks in the XY direction, and the first film panel and the second film panel can be fixed through bolts.
Furthermore, one end of the transmission shaft is fixedly connected with the rack, the other end of the transmission shaft extends into the base and is connected with external transmission equipment through an electric control switch, and the bottom of the rotary table is connected with the external transmission equipment through the electric control switch.
The utility model discloses a technological effect and advantage:
1. the utility model discloses a be equipped with film coordinate mechanism, be favorable to making this radiotherapy equipment realize fitting out the actual position of isocenter, solved X radiation beam axle and be difficult to the simultaneous measurement's a difficult problem for the isocenter skew, the device can also measure simultaneously and shine indexes such as wild digital indicator, the wild instruction of light and isocenter instruction, when setting up different angles to frame, aircraft nose and treatment bed simultaneously very much, all can realize measuring, easy operation, accuracy height.
Additional features and advantages of the invention will be set forth in the description which follows, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and drawings.
Drawings
In order to clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the description below are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 shows a schematic overall structure diagram of an embodiment of the present invention;
FIG. 2 shows an enlarged view of the portion A of FIG. 1 according to an embodiment of the present invention;
fig. 3 shows a schematic diagram of a film coordinate mechanism of an embodiment of the present invention;
in the figure: 1. a machine base; 2. a frame; 3. a drive shaft; 4. an X-ray target shooting head; 5. a treatment couch; 6. a film coordinate mechanism; 601. a U-shaped clamping plate; 602. a front pointer; 603. a moving groove; 604. a connecting rod; 605. A rotating shaft; 606. a dial scale; 607. a first film panel; 608. a second film panel; 609. a limiting disc; 610. locking the nut; 611. fastening a nut; 612. positioning a block; 613. positioning a groove; 614. a level gauge; 7. a bed base; 8. a turntable.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings in the embodiments of the present invention are combined below to clearly and completely illustrate the technical solutions in the embodiments of the present invention. It is to be understood that the embodiments described are only some of the embodiments of the present invention, and not all of them. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
The utility model provides a detection device for X-ray beam axis to squint relative to isocenter, as shown in figure 1-3, comprising a frame 1, wherein one side of the frame 1 is provided with a frame 2, the frame 2 is connected with the frame 1 through a transmission shaft 3, the bottom of one end of the top of the frame 2 is provided with an X-ray target shooting head 4, the bottom of one end of the frame 2 is provided with a treatment bed 5, one end of the treatment bed 5 is provided with a film coordinate mechanism 6, the bottom of the treatment bed 5 is provided with a bed base 7, and one end of the bed base 7 is fixedly connected with a turntable 8; one end of the transmission shaft 3 is fixedly connected with the rack 2, the other end of the transmission shaft extends into the base 1 and is connected with external transmission equipment through an electric control switch, and the bottom of the rotary table 8 is connected with the external transmission equipment through the electric control switch.
The film coordinate mechanism 6 comprises a U-shaped clamping plate 601 and a front pointer 602, one end of the U-shaped clamping plate 601 is clamped at the end part of the treatment bed 5 and fixedly connected with the treatment bed 5 through a bolt, the other end of the U-shaped clamping plate 601 is provided with a moving groove 603, a connecting rod 604 is connected in the moving groove 603 in a sliding manner, one end of the connecting rod 604 is rotatably connected with a rotating shaft 605, a dial 606 is arranged between the connecting rod 604 and the rotating shaft 605, the end part of the rotating shaft 605 is fixedly connected with a first film panel 607, and the surface of the first film panel 607 is provided with a second film panel 608; a limiting disc 609 is arranged at the other end of the connecting rod 604, the outer diameter of the limiting disc 609 is larger than the inner diameter of the moving groove 603, a locking nut 610 is sleeved on the surface of the connecting rod 604 in a threaded manner, one side of the dial 606 is fixedly connected with the end of the connecting rod 604, and a fastening nut 611 is sleeved on the surface of the rotating shaft 605 in a threaded manner; positioning blocks 612 are fixedly connected to two sides of a section of the connecting rod 604 located inside the moving groove 603, and positioning grooves 613 matched with the positioning blocks 612 are formed inside the moving groove 603; the front pointer 602, the first film panel 607 and the central axis of the turntable 8 are the same axis, the X-ray target shooting head 4 and the first film panel 607 are arranged in parallel, and the front pointer 602 is fixedly connected with the frame 2 by a fixing frame; the edge position of the first film panel 607 further includes a level 614, and the surface is provided with XY-direction scale marks, and the first film panel 607 and the second film panel 608 can be fixed by bolts.
When the device is used, firstly, the film coordinate mechanism 6 is utilized to find the installation position of the film, the mode is that the U-shaped clamping plate 601 is clamped at one end of the treatment bed 5, then the U-shaped clamping plate 601 and the treatment bed 5 are fixed by using the bolt, then the connecting rod 604 is moved to enable the connecting rod 604 to move in the moving groove 603, after the connecting rod is moved to the proper position, the limiting disc 609 and the U-shaped clamping plate 601 are firmly fixed by using the locking nut 610, thereby stabilizing the position of the connecting rod 604, then the rotating shaft 605 is rotated to enable the first film panel 607 to rotate, the rotating angle is read by the dial 606, after the current pointer 602 is aligned with the center of the first film panel 607, the rotating shaft 605 and the connecting rod 604 are fixed by using the fastening nut 611, then, coordinates are read according to the dial 606 and XY axis scale lines on the first film panel 607, finally, a film to be used is bonded on the first film panel 607, the second film panel 608 is used for fixing the film between the first film panel 607 and the second film panel 608, so that the radiotherapy equipment can realize fitting of the actual position of the isocenter, the problem that the radiation beam axis of an accelerator deviates relative to the isocenter and is difficult to measure simultaneously is solved, and meanwhile, the device can also measure indexes such as digital indication, light field indication and isocenter indication of a radiation field, especially when different angles are set for the rack 2, the head and the treatment couch 5 simultaneously, the measurement can be realized, the operation is simple, and the accuracy is high.
Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art will understand that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.
Claims (7)
1. A device for detecting the offset of the axis of an X-ray beam with respect to an isocenter, comprising a machine base (1), characterized in that: frame (1) one side is provided with frame (2), and adopts transmission shaft (3) to be connected between frame (2) and frame (1), the bottom of frame (2) top one end is provided with X line target and penetrates head (4), the bottom of frame (2) one end is provided with treatment bed (5), the one end of treatment bed (5) is provided with film coordinate mechanism (6), the bottom of treatment bed (5) is provided with bedrest (7), the one end fixedly connected with carousel (8) of bedrest (7).
2. A device for detecting the displacement of an X-ray beam axis with respect to an isocenter as defined in claim 1, wherein: film coordinate mechanism (6) are including U-shaped cardboard (601) and preceding pointer (602), U-shaped cardboard (601) one end joint is at treatment bed (5) tip, and with adopt bolt fixed connection between treatment bed (5), shifting chute (603) have been seted up to U-shaped cardboard (601) other end, the inside sliding connection of shifting chute (603) has connecting rod (604), connecting rod (604) one end is rotated and is connected with rotation axis (605), and is provided with calibrated scale (606) between connecting rod (604) and rotation axis (605), rotation axis (605) tip fixedly connected with first film panel (607), first film panel (607) surface is provided with second film panel (608).
3. A device for detecting the displacement of an X-ray beam axis with respect to an isocenter as defined in claim 2, wherein: the other end of the connecting rod (604) is provided with a limiting disc (609), the outer diameter of the limiting disc (609) is larger than the inner diameter of the movable groove (603), a locking nut (610) is sleeved on the surface of the connecting rod (604) in a threaded mode, one side of the dial (606) is fixedly connected with the end portion of the connecting rod (604), and a fastening nut (611) is sleeved on the surface of the rotating shaft (605) in a threaded mode.
4. A device for detecting an offset of an X-ray beam axis with respect to an isocenter as defined in claim 2, wherein: the connecting rod (604) is located a section of both sides of the inside of the moving groove (603) and is fixedly connected with a positioning block (612), and a positioning groove (613) matched with the positioning block (612) is formed in the moving groove (603).
5. A device for detecting the displacement of an X-ray beam axis with respect to an isocenter as defined in claim 2, wherein: the front pointer (602) and the central axes of the first film panel (607) and the rotary disc (8) are the same axis, the X-ray target shooting head (4) and the first film panel (607) are arranged in parallel, and the front pointer (602) is fixedly connected with the frame (2) by adopting a fixing frame.
6. A device for detecting the displacement of an X-ray beam axis with respect to an isocenter as defined in claim 2, wherein: the edge position of the first film panel (607) further comprises a level (614), the surface of the level is provided with XY-direction scale marks, and the first film panel (607) and the second film panel (608) can be fixed through bolts.
7. The apparatus of claim 1, wherein the X-ray beam axis is offset with respect to the isocenter: one end and frame (2) fixed connection of transmission shaft (3), the other end extend to inside and be connected with external transmission equipment through electric control switch of frame (1), carousel (8) bottom is connected with external transmission equipment through electric control switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220665623.0U CN217611105U (en) | 2022-03-24 | 2022-03-24 | Detection apparatus for X ray beam axis is skew relative to isocenter |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220665623.0U CN217611105U (en) | 2022-03-24 | 2022-03-24 | Detection apparatus for X ray beam axis is skew relative to isocenter |
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| CN217611105U true CN217611105U (en) | 2022-10-21 |
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| CN202220665623.0U Active CN217611105U (en) | 2022-03-24 | 2022-03-24 | Detection apparatus for X ray beam axis is skew relative to isocenter |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116105642A (en) * | 2023-02-17 | 2023-05-12 | 成都利尼科医学技术发展有限公司 | Measurement device, assembly and measurement method for isocentric consistency |
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2022
- 2022-03-24 CN CN202220665623.0U patent/CN217611105U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116105642A (en) * | 2023-02-17 | 2023-05-12 | 成都利尼科医学技术发展有限公司 | Measurement device, assembly and measurement method for isocentric consistency |
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