CN208852267U - A kind of radiotherapy quality control movement die body - Google Patents
A kind of radiotherapy quality control movement die body Download PDFInfo
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- CN208852267U CN208852267U CN201721641507.0U CN201721641507U CN208852267U CN 208852267 U CN208852267 U CN 208852267U CN 201721641507 U CN201721641507 U CN 201721641507U CN 208852267 U CN208852267 U CN 208852267U
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Abstract
The utility model discloses a kind of radiotherapy quality to control with movement die body, it solves the problems, such as that radiotherapy respiration gate control quality control die body is only capable of measurement setup accuracy of dose in the prior art, has the measurement that can be realized intended dose precision measure and irradiation field position precision to movement target area；Wild position precision measurement can be irradiated to horizontal plane and sagittal plane；Its technical solution are as follows: including die body measuring unit and driving unit, driving unit has direction switching mechanism and connects plate；Liftable infrared ray flat pad is set on driving unit；The die body measuring unit is equipped with through its internal plugboard trough compatible with the plate.
Description
Technical field
The utility model relates to radiation therapy technology field more particularly to a kind of radiotherapy quality control movement moulds
Body.
Background technique
Respiratory movement not only can be such that the tissue of lung is subjected to displacement, but also can involve upper abdomen internal organs, that is to say, that lung
Portion, pancreas, liver and other thorax abdomen organs tumour, can with respiratory movement generate displacement.Some breathings cause displacement
Studies have shown that the movement maximum of tumour can reach 3cm.Therefore, for Continuous irradiation target tissue during exercise, it is necessary to movement
It controlled, tracked.
Respiration gate control is to be monitored by monitoring of respiration equipment to respiratory movement；Patient is fixed on by shooting simultaneously
The X ray image of body surface or the metal marker object to implant, identifies the motion state of target location.By respiratory movement and target
Zone position sets up therebetween curved line relation, opens treatment beam only in preset position by computer control,
To achieve the purpose that Continuous irradiation target tissue during exercise.
In recent years, respiratory gating technology clinically using more and more common.This die body is developed to be intended to radiotherapy
Respiratory gating technology in practice carries out quality control efforts.
Utility model content
A kind of radiotherapy quality that in order to overcome the deficiencies of the prior art, the utility model provides control movement mould
Body has the measurement that can be realized intended dose precision measure and irradiation field position precision to movement target area；It can be in water
Plane and sagittal plane measure irradiation field position precision.
The utility model adopts the following technical solutions:
A kind of radiotherapy quality control movement die body, including die body measuring unit and driving unit, driving unit tool
There is direction switching mechanism and connect plate, plate direction is changed by direction switching mechanism and is realized in horizontal plane, sagittal plane
The measurement of irradiation field position precision；Liftable infrared ray flat pad, the fluctuating fortune of simulation human body thorax are set on driving unit
It is dynamic；Driving unit drives plate to move in die body measuring unit, to realize during the motion to intended dose precision and photograph
The measurement of launched field position precision.
Further, the die body measuring unit is equipped with through its internal plugboard trough compatible with the plate.
Further, the plate is ionisation chamber plate, and the inside of ionisation chamber plate is equipped with ionisation chamber center hub and electricity
From room bias jack, development length of the ionisation chamber bias jack inside plate is greater than the development length of center hub.
Further, the plate is film cassette plate, and the center of film cassette plate is equipped with center positioning hole,
Circumferentially positioned hole is diagonally equipped in the circumferential direction of center positioning hole.
Further, the driving unit includes cross bar, internal box and the driving motor being set in internal box, direction turn
It changes planes structure, driving motor is connected by direction switching mechanism with cross bar, equipped with answering between the direction switching mechanism and internal box
Position spring.
Further, the direction switching mechanism includes guide rod and rotating part, and one end of the guide rod is equipped with protrusion,
Groove is arranged in the two sides of protrusion；The rotating part is equipped with the ellipse arc protrusion matched with groove.
Further, the two sides of the guide rod are equipped with multiple pulleys, and the two sides of internal box are equipped with to be matched with pulley
Sliding slot.
Further, the infrared ray flat pad is connected by the elevating lever of cross-articulation with cross bar, infrared ray transmitting
The side of platform is equipped with sliding slot.
Further, the end of the cross bar is radially equipped with multiple threaded holes, and the angle of adjacent screw holes is 90 °.
Further, the driving unit and infrared ray flat pad are set to inside outer case, the bottom of the outer case
Equipped with bolt is adjusted, the top of outer case is equipped with control button.
Compared with prior art, the utility model has the beneficial effects that
(1) plate of the utility model is divided into ionisation chamber plate and film cassette plate, by converting die body measuring unit
In plate, it can be achieved that movement target area intended dose precision measure and irradiation field position precision measurement；
(2) rotary motion of motor can be converted into water by the driving unit setting direction switching mechanism of the utility model
Flat movement, to drive movement of the plate in die body measuring unit centerboard slot；Infrared ray flat pad moves up and down simultaneously,
Simulate the undulatory motion of human body thorax；Realize the survey in motion process to the irradiation field position precision on horizontal plane and sagittal plane
Amount.
Detailed description of the invention
The accompanying drawings constituting a part of this application is used to provide further understanding of the present application, and the application's shows
Meaning property embodiment and its explanation are not constituted an undue limitation on the present application for explaining the application.
Fig. 1 is the overall structure diagram of the utility model；
Fig. 2 is the driving unit schematic diagram of internal structure of the utility model；
Fig. 3 is the driving unit top view of the utility model；
Fig. 4 is the driving unit overall structure diagram of the utility model；
Fig. 5 is the die body measuring unit structural schematic diagram of the utility model；
Fig. 6 is the die body measuring unit cross-sectional view of the utility model；
Fig. 7 is the film cassette board plug structure schematic diagram of the utility model；
Fig. 8 is the ionisation chamber board plug structure schematic diagram of the utility model；
Fig. 9 is that the plate of the utility model and cross bar split connection schematic diagram；
Figure 10 is the cross bar cross-sectional view of the utility model；
Wherein, 1- die body measuring unit, 2- go up and down sliding slot, 3- infrared ray flat pad, 4- outer case, 5- internal box, 6-
Guide chute, 7- adjust bolt, 8- elevating lever, 9- cross bar, 10- plugboard trough, 11- driving motor, 12- reset spring, 13- guiding
Bar, the switching mechanism of the direction 14-, 15- center positioning hole, 16- control button, 17- film cassette plate, 18- threaded hole, 19- are inserted
Plate, 20- bias jack, 21- center hub, 22- ionisation chamber plate, 23- ionisation chamber jack, the circumferentially positioned hole 24-, 25- bolt.
Specific embodiment
It is noted that following detailed description is all illustrative, it is intended to provide further instruction to the application.Unless another
It indicates, all technical and scientific terms used herein has usual with the application person of an ordinary skill in the technical field
The identical meanings of understanding.
It should be noted that term used herein above is merely to describe specific embodiment, and be not intended to restricted root
According to the illustrative embodiments of the application.As used herein, unless the context clearly indicates otherwise, otherwise singular
Also it is intended to include plural form, additionally, it should be understood that, when in the present specification using term "comprising" and/or " packet
Include " when, indicate existing characteristics, step, operation, device, component and/or their combination.
As background technique is introduced, radiotherapy respiration gate control quality control die body exists in the prior art and is only capable of surveying
The deficiency that meter draws accuracy of dose, cannot detect irradiation field position precision, in order to solve technical problem as above, the application is proposed
A kind of radiotherapy quality control movement die body.
In a kind of typical embodiment of the application, as shown in Fig. 1-Figure 10, a kind of radiotherapy quality control is provided
System movement die body, including die body measuring unit 1 and driving unit, driving unit connect plate 19, are controlled by driving unit
Plate 19 moves in die body measuring unit 1, the displacement that analog detection tumour is generated with respiratory movement.
As shown in figs 2-4, driving unit includes outer case 4, cross bar 9, infrared ray flat pad 3,11 and of driving motor
The motor shaft of direction switching mechanism 14, driving motor 11 is connected with direction switching mechanism 14 and the two is set in internal box 5, side
To reset spring 12 is arranged between switching mechanism 11 and the side wall of internal box 5, the driving motor 11 passes through direction switching mechanism
14, reset spring 12 is connected with cross bar 9, and the rotary motion of motor shaft is converted into the horizontal of cross bar 9 and transported by direction switching mechanism 14
Dynamic, reset spring 12 realizes the resetting movement of cross bar 9.
As shown in Fig. 2, being equipped with guide chute 6 in the two sides of internal box 5；The direction switching mechanism 14 includes guide rod 13
And rotating part, one end of the guide rod 13 are equipped with protrusion, groove, the other end and cross bar of guide rod 13 is arranged in raised two sides
9 are connected；The rotating part is fixed on the motor shaft of driving motor 11, and the end of rotating part is equipped with the ellipse matched with groove
Arc convex；When driving motor 11 drives rotating part rotation, groove, the projection contacts of ellipse arc bulge clearance and guide rod,
Complete the conversion of rotary motion to horizontal movement.
The two sides of the guide rod 13 are respectively equipped with multiple pulleys, and the pulley is set to the guide chute 6 of 5 two sides of internal box
In, guide chute 6 plays the supporting role to guide rod 13.
The infrared ray flat pad 3 is connected by the elevating lever 8 of two groups of interconnections with cross bar 9, and infrared ray transmitting is flat
The two sides of platform 3 are respectively equipped with lifting sliding slot 2, and one end of an elevating lever 8 is set in lifting sliding slot 2 by pulley, it is another and this
One end of the elevating lever 8 of 8 cross-articulation of elevating lever joins in the side of infrared ray flat pad 3；Two one end of elevating lever 8 are hinged
In on cross bar 9；The elevating movement of infrared ray flat pad 3 is driven by the resetting movement of cross bar 9；Liftable infrared ray transmitting
Platform 3, for simulating the undulatory motion of human body thorax.
4 top section of outer case for accommodating infrared ray flat pad 3, which is higher by, accommodates 11 part of driving motor, institute's outer case 4
The top for accommodating 3 part of infrared ray flat pad is equipped with fluting, and infrared ray flat pad 3 is made to be moveable to the outside of outer case 4,
But not fully the elevating lever 8 of 3 two sides of infrared ray flat pad is avoided to cause personnel in operating process beyond 4 top of outer case
Crush.
The bottom of the outer case 4 be equipped with adjust bolt 7, by adjust bolt 7 adjust driving unit height, make its with
1 plugboard trough 10 is corresponding in die body measuring unit；The top that outer case accommodates 11 part of driving motor is equipped with control button 16,
The start and stop of driving motor 11 are controlled by control button 16.
As shown in Fig. 9-Figure 10, the cross bar 9 and plate 19 are connected by bolt 25, the end of cross bar 9 radially
Equipped with 4 threaded holes 18, the angle between adjacent screw holes 18 is 90 °；It converts on cross bar and inserts by direction switching mechanism 14
Plate 19 relative to threaded hole 18, realize to the intended dose precision measure and irradiation field position precision in horizontal plane, sagittal plane
Measurement.
The plate 19 includes probe portion and interconnecting piece, and probe portion is rectangular parallelepiped structure, and interconnecting piece is cylindrical structure, institute
Interconnecting piece is stated to be fixed on one end of probe portion and be connected as one with probe portion；The interconnecting piece is matched with cross bar 9, cross bar 9
One end be equipped with the groove that matches with 9 size of cross bar, interconnecting piece is inserted into groove and is connected by bolt 25.
The plate 19 divides for film cassette plate 17 and ionisation chamber plate 22, places glue inside film cassette plate 17
Piece, the center on film cassette plate 17 are equipped with center positioning hole 15, center positioning hole 15 circumferential direction diagonally just
To equipped with circumferentially positioned hole 24；4 non-coplanar gold marks are embedded in film cassette plate 17, by measuring film cassette plate 17
On gold mark design, also this die body can be applied to intended dose precision measure to ejected wave knife gold mark tracer technique and irradiation field
The measurement of position precision.
Ionisation chamber jack 23 is arranged in the inside of the ionisation chamber plate 22, and the ionisation chamber jack 23 includes center hub 21
With eccentric jack 20；It is equipped with center hub 21 along axial centre, is equipped with eccentric jack 20 in the side of center hub 21, it is described inclined
Development length of the heart jack 20 inside plate is greater than the development length of center hub 21.By in transformation die body measuring unit
Plate 19, it can be achieved that movement target area intended dose precision measure and irradiation field position precision measurement.
The die body measuring unit 1 is equipped with through its internal plugboard trough 10 compatible with plate 19, die body measurement
The section of unit 1 is in ellipse arc, and bottom surface is plane.
As shown in Figure 5 and Figure 6, the section of die body measuring unit 1 is the ellipse that a part is clipped in bottom surface, oval length
Shaft length is 280mm, minor axis length 230mm, and the length of truncated part is 30mm, therefore, the bottom surface of die body measuring unit 1 away from
The distance of top highest point is 200mm；The ionisation chamber plate 23 being arranged in plugboard trough 10, eccentric jack 20 and center hub 21
Distance be 35mm, eccentric jack 20 is 35mm bigger than the length of center hub 21；The total length of the die body measuring unit 1 is
200mm。
The length of film cassette plate 17 and ionisation chamber plate 22 is 30cm, width 18cm, is highly 2cm；Plate is long
Degree is greater than die body length, when moving plate in die body, will not generate in die body " cavity ".
The threaded hole of 9 end of cross bar is having a size of outer diameter 6cm, internal diameter 4cm, depth 4cm.
The die body measuring unit 1 of above-mentioned size is depending on artificial human body model size.
The foregoing is merely preferred embodiment of the present application, are not intended to limit this application, for the skill of this field
For art personnel, various changes and changes are possible in this application.Within the spirit and principles of this application, made any to repair
Change, equivalent replacement, improvement etc., should be included within the scope of protection of this application.
Claims (9)
1. a kind of radiotherapy quality control movement die body, which is characterized in that including die body measuring unit and driving unit, drive
Moving cell has direction switching mechanism and connects plate；Liftable infrared ray flat pad is set on driving unit；The mould
Bulk measurement unit is equipped with through its internal plugboard trough compatible with the plate.
2. a kind of radiotherapy quality control movement die body according to claim 1, which is characterized in that the plate is
Ionisation chamber plate, the inside of ionisation chamber plate are equipped with ionisation chamber center hub and ionisation chamber bias jack, and the ionisation chamber is eccentric
Development length of the jack inside plate is greater than the development length of center hub.
3. a kind of radiotherapy quality control movement die body according to claim 1, which is characterized in that the plate is
Film cassette plate, the center of film cassette plate are equipped with center positioning hole, center positioning hole circumferential direction diagonally
Direction is equipped with circumferentially positioned hole.
4. a kind of radiotherapy quality control movement die body according to claim 1, which is characterized in that the driving is single
Member includes cross bar, internal box and the driving motor being set in internal box, direction switching mechanism, and driving motor is converted by direction
Mechanism is connected with cross bar, and reset spring is equipped between the direction switching mechanism and internal box.
5. a kind of radiotherapy quality control movement die body according to claim 1 or 4, which is characterized in that the side
It include guide rod and rotating part to switching mechanism, one end of the guide rod is equipped with protrusion, and groove is arranged in raised two sides；It is described
Rotating part is equipped with the ellipse arc protrusion matched with groove.
6. a kind of radiotherapy quality control movement die body according to claim 5, which is characterized in that the guide rod
Two sides be equipped with multiple pulleys, the two sides of internal box are equipped with the sliding slot matched with pulley.
7. a kind of radiotherapy quality control movement die body according to claim 4, which is characterized in that the infrared ray
Flat pad is connected by the elevating lever of cross-articulation with cross bar, and the side of infrared ray flat pad is equipped with sliding slot.
8. a kind of radiotherapy quality control movement die body according to claim 4, which is characterized in that the cross bar
End is radially equipped with multiple threaded holes, and the angle of adjacent screw holes is 90 °.
9. a kind of radiotherapy quality control movement die body according to claim 1, which is characterized in that the driving is single
Member and infrared ray flat pad are set to inside outer case, and the bottom of the outer case, which is equipped with, adjusts bolt, are set at the top of outer case
There is control button.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721641507.0U CN208852267U (en) | 2017-11-30 | 2017-11-30 | A kind of radiotherapy quality control movement die body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721641507.0U CN208852267U (en) | 2017-11-30 | 2017-11-30 | A kind of radiotherapy quality control movement die body |
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| Publication Number | Publication Date |
|---|---|
| CN208852267U true CN208852267U (en) | 2019-05-14 |
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ID=66409836
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| Application Number | Title | Priority Date | Filing Date |
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| CN201721641507.0U Active CN208852267U (en) | 2017-11-30 | 2017-11-30 | A kind of radiotherapy quality control movement die body |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115061177A (en) * | 2022-06-14 | 2022-09-16 | 四川大学华西医院 | Physical dose measuring instrument for simulating lung movement for radiotherapy |
-
2017
- 2017-11-30 CN CN201721641507.0U patent/CN208852267U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115061177A (en) * | 2022-06-14 | 2022-09-16 | 四川大学华西医院 | Physical dose measuring instrument for simulating lung movement for radiotherapy |
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