CN205403853U - After adorn radiation therapy machine and matter accuse measuring device thereof - Google Patents
After adorn radiation therapy machine and matter accuse measuring device thereof Download PDFInfo
- Publication number
- CN205403853U CN205403853U CN201620182653.0U CN201620182653U CN205403853U CN 205403853 U CN205403853 U CN 205403853U CN 201620182653 U CN201620182653 U CN 201620182653U CN 205403853 U CN205403853 U CN 205403853U
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- photographic head
- radioactive source
- measuring device
- measurement apparatus
- graduated scale
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Abstract
The utility model relates to an after adorn radiation therapy machine and matter accuse measuring device thereof, this matter accuse measuring device includes a conducting pipe, a plurality of camera and camera mount of lining up one row, conducting pipe is made by transparent material to on locating the graduated scale, its one end is used for fixed therapeutical passageway of carried forward dress therapy apparatus, every camera is all fixed through the camera mount and is set for the position directly over one graduated scale. Can the simultaneous measurement radiation source change required meaurement of time device in the precision that targets in place, dwell -time, the motion mean speed the when position changes, the position of a plurality of positions, the device easy operation, error are little, with low costs.
Description
Technical field
This utility model relates to a kind of Afterloading radiotherapy machine and the Quality Control measurement apparatus for Afterloading radiotherapy machine.
Background technology
Afterloading radiotherapy machine, is called for short afterloading unit, i.e. plesioradiotherapy machine, is a kind of tumor treatment equipment, can carry out Afterloading radiotherapy.Afterloading radiotherapy refers to and the treatment container without radioactive source is placed in therapentic part, Computerized remote-control motor radioactive source is sent into container and carry out radiotherapy, so can avoid placing medical worker in treatment container processes injured because radiating.This just requires that the position that radioactive source is accurately transported to patients needing treatment safely carries out radiotherapy.
Afterloading unit general work process is: change road device under the manipulation of computer, is directed at a treatment passage of adapter dish every time, and then steel wire rope enters dummy pipe, computer be accurately controlled the output length of steel wire rope, makes radioactive source arrive therapentic part.
Afterloading radiotherapy dose distribution and radioactive source have direct relation in each position time of staying, therefore the in-placing precision of radioactive source, residence time, radioactive source change position required time, the average speed that changes position directly influences therapeutic effect, is also afterloading unit quality control and quality assurance important content.
At present, the assay method of precision of right-position of radioactive source is mainly Film Dosimeter.The method needs nigrometer or these specific purpose tools of Film scanner, complicated operation, it is necessary to significantly high operant skill, and error is big.Additionally, film can not reuse, use cost is high.
Summary of the invention
The purpose of this utility model is to provide a kind of Afterloading radiotherapy machine and is used on afterloader, can measure the measurement apparatus of the radioactive source motion average speed when the in-placing precision of multiple positions, residence time, position change, position change required time simultaneously, and this device is simple to operate, error is little, cost is low.
The technical solution of the utility model is: a kind of Afterloading radiotherapy machine Quality Control measurement apparatus, this device includes a conducting tube, multiple photographic head being arranged in a row and lens supporting structure, conducting tube is made of clear material, and it is located on graduated scale, its one end is for connecing the treatment passage that afterloader one is fixing；Each photographic head is fixed on the surface of one setting position of graduated scale by lens supporting structure.
Preferably, multiple photographic head 0 spacing are arranged in a row.
Further, photographic head is connected with computer.
A kind of Afterloading radiotherapy machine that this utility model provides, including above-mentioned measurement apparatus.
Further, radioactive source fault can be triggered during described conducting tube wrong channel outlet chain, make afterloading unit can not drive radiation source movements.
Adopting the measurement of this utility model device, beneficial effect has:
1) with multiple photographic head just to scale, it is possible to multiple transmission in-placing deviations of interpretation radioactive source, simple, direct, very clear；Error is little, and precision can reach below 0.1mm；Comparing the single photographic head of employing can only just to a scale, and other scales can only tiltedly be clapped, it is clear that its precision is higher；
2) also be able to measure the residence time of radioactive source, position change time motion average speed, position change required time；
3) device can be reused, and use cost is extremely low.
Accompanying drawing explanation
Accompanying drawing 1 is this utility model structural representation.
Detailed description of the invention
As it is shown in figure 1, precision of right-position of radioactive source of the present utility model and residence time measurement apparatus include a conducting tube 2, multiple photographic head 4 being closely arranged in a row and lens supporting structure 5.Conducting tube 2 is made of clear material, and is located on graduated scale 3.The distance that the scale of scale moves with radioactive source is consistent.Radioactive source carried by steel wire rope 6 in conducting tube 2.The move distance of radioactive source is in the overall coverage of all photographic head 4.Photographic head 4 is connected with computer each through transmission data wire.
The treatment passage that conducting tube 2 one of the present utility model termination afterloader one is fixing.So, radioactive source fault can be triggered when conducting tube 2 wrong channel outlet chain, make afterloading unit can not drive radiation source movements.
This utility model is adopted to carry out precision of right-position of radioactive source as follows with the method that residence time is measured:
1) conducting tube 2 one end is connected in a fixing treatment channel outlet 1 of afterloader；
2) multiple photographic head 4 are fixed on by lens supporting structure 5 appropriate location, top of conducting tube；Each photographic head is fixed on above graduated scale such as through lens supporting structure, and is in the surface of a setting position (setting according to practical situation)；
3) by data wire, photographic head and computer are connected, open photographic head and computer, make each photographic head can photograph a part of scale of conducting tube 2 clearly；
4) shut the protective door of therapeutic room, afterloading unit inputs the residence time of the multiple setting position of radioactive source, it is desirable to there is a photographic head surface of each setting position, start；
5) analyze software and provide the after-loading therapy machine radioactive source motion average speed when the in-placing precision of each position, residence time, position change, position change required time etc. according to corresponding data.Method is as follows:
Clearly interpretation can go out the actual position of radioactive source from shooting figure, then precision of right-position of radioactive source is the difference of physical location and setting position；
From screen record analysis, if a certain setting position of radioactive source arrival is K1 frame screen, and leaving this setting position is K2 frame screen, and video capture speed is n frame per second, then residence time is (K2-K1)/n,
Assuming that set residence time as T1, then the error of residence time is (K2-K1)/n-T1, and certainty of measurement can reach the 1/n second；
Radioactive source moves to another location from a certain position, leaving a certain setting position is K2 frame screen, and arriving another location is K3 frame screen, then traveling time is (K3-K2)/n, assuming that two location gap are from for L, then radioactive source rolling average speed is Ln/(K3-K2)；
All the other each data calculate in this approach.
Claims (5)
1. an Afterloading radiotherapy machine Quality Control measurement apparatus, it is characterized in that this device includes a conducting tube, multiple photographic head being arranged in a row and lens supporting structure, conducting tube is made of clear material, and it is located on graduated scale, its one end is for connecing the treatment passage that one, Afterloading radiotherapy machine is fixing；Each photographic head is fixed on the surface of one setting position of graduated scale by lens supporting structure.
2. measurement apparatus according to claim 1, it is characterised in that multiple photographic head 0 spacing are arranged in a row.
3. measurement apparatus according to claim 1, it is characterised in that photographic head is connected with computer.
4. an Afterloading radiotherapy machine, it is characterised in that include the measurement apparatus that one of claim 1 ~ 3 is described.
5. Afterloading radiotherapy machine according to claim 4, it is characterised in that can trigger radioactive source fault during described conducting tube wrong channel outlet chain, makes Afterloading radiotherapy machine can not drive radiation source movements.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620182653.0U CN205403853U (en) | 2016-03-10 | 2016-03-10 | After adorn radiation therapy machine and matter accuse measuring device thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620182653.0U CN205403853U (en) | 2016-03-10 | 2016-03-10 | After adorn radiation therapy machine and matter accuse measuring device thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205403853U true CN205403853U (en) | 2016-07-27 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620182653.0U Expired - Fee Related CN205403853U (en) | 2016-03-10 | 2016-03-10 | After adorn radiation therapy machine and matter accuse measuring device thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205403853U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108478937A (en) * | 2018-03-27 | 2018-09-04 | 中国医学科学院北京协和医院 | A kind of radiotherapy afterloading unit Quality Control device |
-
2016
- 2016-03-10 CN CN201620182653.0U patent/CN205403853U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108478937A (en) * | 2018-03-27 | 2018-09-04 | 中国医学科学院北京协和医院 | A kind of radiotherapy afterloading unit Quality Control device |
| CN108478937B (en) * | 2018-03-27 | 2020-06-26 | 中国医学科学院北京协和医院 | Machine matter accuse device is installed after radiotherapy |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160727 Termination date: 20190310 |