CN206577258U - A kind of positioner of gamma knife quality testing die body - Google Patents
A kind of positioner of gamma knife quality testing die body Download PDFInfo
- Publication number
- CN206577258U CN206577258U CN201621267732.8U CN201621267732U CN206577258U CN 206577258 U CN206577258 U CN 206577258U CN 201621267732 U CN201621267732 U CN 201621267732U CN 206577258 U CN206577258 U CN 206577258U
- Authority
- CN
- China
- Prior art keywords
- die body
- gamma knife
- quality testing
- positioner
- angle
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Measurement Of Radiation (AREA)
Abstract
The utility model discloses a kind of positioner of gamma knife quality testing die body, the supporting plate being be arranged in parallel including substrate with two be arranged on substrate, the top ends of one supporting plate indicate disk provided with angle, the angle indicate disk center and another supporting plate corresponding thereto on be equipped with angle adjustment holes, rotatable ear post is equipped with the angle adjustment holes, the end that the ear post is located on the outside of two supporting plates is respectively provided with locking device, then gamma knife quality testing die body with two ear posts by being connected, and in the presence of locking device, realize the angle positioning of gamma knife quality testing die body.The utility model positioner is connected by rotatable ear post with gamma knife quality testing die body, and in the presence of angle indicates instruction and the locking device of disk, realizes and the angle of gamma knife quality testing die body is positioned.Also by setting rotation support bar, the convenient, flexible angular adjustment for realizing die body further realizes the accuracy of angular adjustment.
Description
Technical field
The utility model is related to gamma knife technical field of quality detection, more particularly to a kind of gamma knife quality testing die body
Positioner.
Background technology
Currently, since gamma rays stereotactic surgery treatment system (abbreviation gamma knife) is applied to clinical radiotherapy,
Good effect is achieved in lung cancer, head tumor etc..Gamma knife is by many60The gamma rays that Co sources are produced carries out disposable
Heavy dose of ground focusing illumination tumor target, surrounding tissue is barely affected, so as to reach the purpose for the treatment of tumour.In gamma knife
Heart dosage is maximum, and dosage is gradually decreased to edge extension, is had good therapeutic effect to tumour, is had a extensive future.
In recent years, the Body Gamma-knife grown up, gyro knife, super gamma-knife radiosurgery etc., more expand national tumour radiotherapy
The application for the treatment of.However, gamma knife is complicated, the normal factor that is affected of running is more, stores the shielding thickness in source
It is qualified not require nothing more than, to prevent sand permeation；More importantly radioactive source goes out the accuracy of beam position and the degree of accuracy of output dose, more
It is related to the life and health of patient.While gamma knife is widely used in treatment tumour, to its quality assurance and quality control
Work is also increasingly brought into schedule.In order to improve tumor cure rate, ensure the quality of life of patient conscientiously, to gamma knife quality control
The detection of dosimeter index also just seems abnormal important.At present, detection gamma knife Main Basiss are GBZ168-2005, and content is detailed
It is real, but need it is further update with it is perfect, for example embodiment does not enter row bound to diameter 16mm collimater in standard
Binding occurrence, needs the method with difference and the size of field size is fitted with reference to the isodose curve of launched field 50% herein.Therefore,
The test method of quality control of gamma knife is improved, to meet the requirement of national diagnosis and treatment administrative provisions.Particularly improve gamma knife
The detection content and step of the quality control dosimeter index of technology are very important and are very urgent.
Gamma knife dosimeter index at home health and professional standard in expressly stated otherwise, mainly include center dosage
The specific Testing index such as rate, field size, launched field penumbra and dose deviations, detects that these indexs are required to be applied to film dosimetry
Meter.But different types of equipment detection method has certain difference, the technical merit to tester requires higher, should be familiar with
The operation principle and self-characteristic of dosimeter are, it is necessary to substantial amounts of practical experience and knowledge accumulation, in addition it is also necessary to further dosimeter
Data analysis, it is often more important that the suitable dosimeter of selection and testing tool.There is scholar to use Kodak EDR both at home and abroad2With
Gafchromic EBT3Film carries out quality controling research work to gamma knife radiation field size dosimeter index, achieves good
Effect.But film badge needs to carry out scale in standard dosimetry laboratory before testing, otherwise directly influences film
The qualitatively and quantitatively function of dosimeter.Analysis produces the possible cause of difference and the in-placing precision of therapeutic bed, focal spot measurement bay are put
The factors such as position repeatability, geometric coordinate centralized positioning and film analysis software resolution ratio are relevant.Early stage is applied to oncotherapy
It is gamma-knife on head, the positioning requirements precision at focal spot center is higher, and gamma knife gradually develops into full length gamma cutter at present, carries
Show that equipment manufacturer, engineer, technical staff should focus on being accurately positioned for ray focusing position.Radiotherapy physics teacher is according to tumor target
Different-diameter collimater is selected to determine target dose when treatment plan is done in area.Whether the field size and penumbra of correspondence collimater
Meet given nominal value, be related to the dosage for actually giving patient tumors.
Thus, the application founds a kind of positioner of new gamma knife quality testing die body, with accurate, sensitive, conveniently
The positioning for realizing the gamma knife quality testing die body, for improve gamma knife technology quality control dosimeter index detection in
Hold and step provides the foundation.
Utility model content
The technical problems to be solved in the utility model is to provide a kind of positioner of gamma knife quality testing die body, makes it
Accurately, positioning that is sensitive, easily realizing the gamma knife quality testing die body.
In order to solve the above technical problems, the utility model provides a kind of positioner of gamma knife quality testing die body, bag
The supporting plate for including substrate and setting on the substrate two to be arranged in parallel, the top ends of one supporting plate are provided with angle
Indicate disk, the angle indicate disk center and another supporting plate corresponding thereto on be equipped with angular adjustment
Rotatable ear post is equipped with hole, the angle adjustment holes, the ear post is respectively provided with positioned at described two supporting plate outboard ends
Locking device, then the gamma knife quality testing die body is with described two ear posts by being connected, and in the locking device
Under effect, the angle positioning of the gamma knife quality testing die body is realized.
As a kind of improvement of the present utility model, the positioner also includes being used to connect the gamma knife quality testing
The support annulus of die body and described two ear posts.
Further improve, the support annulus inner ring and described two ear column ends and the gamma knife quality testing mould
Connected between the stretching ear end of body using snap-in structure.
Further improve, the angle indicates to be additionally provided with rotation support bar on the ear post of disk side.
Further improve, multiple horizontal adjustment screw rods are provided with the substrate.
Further improve, supporting plate reinforcing strip is provided between the middle and lower part of described two supporting plates.
Further improve, the gamma knife quality testing die body is spherical phantom or focus measuring stick.
After such design, the utility model at least has advantages below：
The utility model positioner is connected by rotatable ear post with gamma knife quality testing die body, and is referred in angle
Show under the instruction of disk, realize and the angle of gamma knife quality testing die body is positioned.
The utility model also rotates support bar by designing, the convenient, flexible angular adjustment for realizing die body, further
Realize the accuracy of angular adjustment.
The utility model is also by the horizontal adjustment screw rod being arranged on substrate, and flexible realization is to the positioner
Horizontal adjustment.
Brief description of the drawings
Above-mentioned is only the general introduction of technical solutions of the utility model, in order to better understand technology hand of the present utility model
Section, below in conjunction with accompanying drawing, the utility model is described in further detail with embodiment.
Fig. 1 is positioner and the structural representation of ball-type die body cooperation in the utility model.
Fig. 2 is the front view of positioner in the utility model.
Fig. 3 is positioner and the front view of ball-type die body cooperation in the utility model.
Fig. 4 is positioner and the structural representation of focus measuring stick cooperation in the utility model.
Embodiment
The present embodiment is carried out specifically by taking ball-type die body and focus measuring stick as an example to positioner of the present utility model
Bright, it is any limitation to the application that should not be understood.
Referring to the drawings shown in 1 and 2, the positioner of the utility model gamma knife quality testing die body, including substrate 1 and set
Put two on the substrate 1 supporting plates be arrangeding in parallel 3.The top of one supporting plate 3 indicates disk 6, the angle provided with angle
Degree indicate disk 6 center and another supporting plate 3 corresponding thereto on be equipped with angle adjustment holes, the angle adjustment holes
In be equipped with rotatable ear post 9, the ear post 9 is respectively provided with locking device 4 positioned at two outboard ends of supporting plate 3.
The positioner and spherical phantom 5 with the use of when, the bindiny mechanisms of the both sides of spherical phantom 5 by with this two
Individual ear post 9 is in mating connection, is arranged between two supporting plates 3, rotation and its upper locking device 4 by two ear posts 9
Collective effect, can be achieved the spherical phantom 5 angle positioning.
Referring to the drawings shown in 3, the both sides of the spherical phantom of this in the present embodiment 5 are respectively arranged with stretching ear, the positioner
Also include being used for connecting the support annulus 10 that the ball-type die body stretches out ear and ear post 9, the inner ring of the support annulus 10 with this two
The connection for stretching out ear end of the end of ear post 9 and the spherical phantom is designed using snap-in structure.
Referring to the drawings shown in 1 and 3, the anglec of rotation for being easy to that the ball-type die body is adjusted flexibly is alsoed for, the positioner is also
Including rotation support bar 11.The more excellent rotation support bar 11 is arranged on the ear post 9 that the side of disk 6 is indicated provided with angle, then is passed through
Turning effort to the rotation support bar 11, can more accurately realize angle adjustment and the positioning to the spherical phantom 5.
For horizontal adjustment of the flexible realization to the positioner, the substrate 1 is provided with horizontal adjustment screw rod 2.
It is more excellent to be provided with 3 horizontal adjustment screw rods 2, the horizontal adjustment of spherical phantom is realized indirectly.
Supporting plate reinforcing strip 7 is provided between the middle and lower part of two supporting plates 3 of this in the present embodiment, for improving the positioning
The steadiness of device.
Referring to the drawings shown in 4, for using cooperatively for the positioner and focus measuring stick 8, the both sides of focus measuring stick 8
Bindiny mechanism is arranged between two supporting plates 3 by being engaged with two ear posts 9, by the rotations of two ear posts 9 and
The collective effect of its upper locking device 4, can be achieved the angle positioning of the focus measuring stick 8.
All parts in the utility model positioner are made using pmma material, can so prevent this from determining
Scattering of the position device to ray.
Spherical phantom is made from lucite in the present embodiment, a diameter of 160mm, including two hemisphere, two stretchings
Ear, two fanning strips, its accessory include waiting centralized positioning plate, horizontal stand, fixing device, burnt skin ratio measurement plate, dosage field point
Cloth measures magazine and PTW 0.015cc ionisation chamber plates etc..
It is any with positioning, Level tune, fixation, regulation when the die body is used cooperatively with the utility model positioner
The function of ball modular angle degree, with horizontal positioned, can not only measure the size and the function of penumbra of the radiation field size in three directions of gamma knife；
Die body angle can also be adjusted, at any angle the size of the radiation field size in three directions and the function of penumbra；And the die body has
Assign different small sensitive volume ionisation chambers and lay thermoluminescent dosemeter, for measuring different launched field centers close rate and center
Dosage.
The utility model positioning device structure is simple, easy to use, angular adjustment efficient, and detection dosimeter can be aided in crucial
Index, shortens pendulum position, installation, debugging and data acquisition time, meets state's Inner irradiation application present situation, and has a extensive future, can
Medical department, testing agency, or even environmental protection, quality inspection and drug administration department can be used for.
It is described above, only it is preferred embodiment of the present utility model, not makees any formal to the utility model
Limitation, those skilled in the art make a little simple modification, equivalent variations or modification using the technology contents of the disclosure above,
Fall in protection domain of the present utility model.
Claims (7)
1. a kind of positioner of gamma knife quality testing die body, it is characterised in that including substrate and setting on the substrate
Two supporting plates for be arrangeding in parallel, the top ends of one supporting plate indicate disk provided with angle, and the angle indicates disk
It is equipped with angle adjustment holes, the angle adjustment holes and is equipped with center and another supporting plate corresponding thereto
Rotatable ear post, the ear post is respectively provided with locking device positioned at described two supporting plate outboard ends, then the gamma knife quality
Detect that die body, by being connected with described two ear posts, and in the presence of the locking device, realizes the gamma knife quality
Detect the angle positioning of die body.
2. the positioner of gamma knife quality testing die body according to claim 1, it is characterised in that the positioner
Also include the support annulus for being used to connect the gamma knife quality testing die body and described two ear posts.
3. the positioner of gamma knife quality testing die body according to claim 2, it is characterised in that the support annulus
Snap-in structure is used between inner ring and described two ear column ends and the stretching ear end of the gamma knife quality testing die body
Connection.
4. the positioner of gamma knife quality testing die body according to claim 1, it is characterised in that the angle is indicated
Rotation support bar is additionally provided with the ear post of disk side.
5. the positioner of gamma knife quality testing die body according to claim 1, it is characterised in that set on the substrate
It is equipped with multiple horizontal adjustment screw rods.
6. the positioner of gamma knife quality testing die body according to claim 1, it is characterised in that described two supports
Supporting plate reinforcing strip is provided between the middle and lower part of plate.
7. the positioner of gamma knife quality testing die body according to claim 1, it is characterised in that the gamma knife matter
Amount detection die body is spherical phantom or focus measuring stick.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621267732.8U CN206577258U (en) | 2016-11-23 | 2016-11-23 | A kind of positioner of gamma knife quality testing die body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621267732.8U CN206577258U (en) | 2016-11-23 | 2016-11-23 | A kind of positioner of gamma knife quality testing die body |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206577258U true CN206577258U (en) | 2017-10-24 |
Family
ID=60108877
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621267732.8U Expired - Fee Related CN206577258U (en) | 2016-11-23 | 2016-11-23 | A kind of positioner of gamma knife quality testing die body |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206577258U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111257917A (en) * | 2020-01-20 | 2020-06-09 | 广州瑞多思医疗科技有限公司 | Auxiliary device for ray dose measurement |
-
2016
- 2016-11-23 CN CN201621267732.8U patent/CN206577258U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111257917A (en) * | 2020-01-20 | 2020-06-09 | 广州瑞多思医疗科技有限公司 | Auxiliary device for ray dose measurement |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Rowshanfarzad et al. | Isocenter verification for linac‐based stereotactic radiation therapy: review of principles and techniques | |
| ES2527310T3 (en) | Method and apparatus for real-time dosimetry | |
| Rowshanfarzad et al. | Verification of the linac isocenter for stereotactic radiosurgery using cine‐EPID imaging and arc delivery | |
| JPH02504230A (en) | Measuring device for checking the radiated electromagnetic field from treatment machines for radiotherapy | |
| WO2018029392A1 (en) | Method for the automation of the dose calibration, reconstruction and verification of complex radiotherapy treatments, integrated into one environment, and system for implementing same | |
| Alhujaili et al. | Quality assurance of Cyberknife robotic stereotactic radiosurgery using an angularly independent silicon detector | |
| CN206577258U (en) | A kind of positioner of gamma knife quality testing die body | |
| Wang et al. | Verification of eye lens dose in IMRT by MOSFET measurement | |
| Wootton et al. | Code of practice for x‐ray therapy linear accelerators | |
| WO2021033823A1 (en) | Radiation therapy dose verification apparatus and method using patient-specific tumor-shaped scintillator | |
| Piermattei et al. | ASi EPIDs for the in-vivo dosimetry of static and dynamic beams | |
| Moutinho et al. | Scintillating fiber optic dosimeters for breast and prostate brachytherapy | |
| Mukwada et al. | Commissioning of a well type chamber for HDR and LDR brachytherapy applications: a review of methodology and outcomes | |
| US20140107392A1 (en) | Method of Dose Comparison for In Vivo Dosimetry | |
| Shen et al. | Comprehensive evaluations of gantry and couch rotation isocentricities for implementing proton stereotactic radiosurgery | |
| Schott et al. | EPID-based dosimetry | |
| Abdullah et al. | Measurement of dosimetric parameters and dose verification in stereotactic radiosurgery (SRS) | |
| Rickels | Characterization of Physical and Dosimetric Aspects of SRS HyperArc Treatment Technique | |
| CN208860957U (en) | A kind of detection support measuring linear accelerator leakage rediation | |
| KR101822398B1 (en) | Irradiation device for stereotactic irradiation of gamma-rays and experimental method thereof | |
| Roed et al. | EP-1513: Polymer gels enable volumetric dosimetry of dose distributions from an MR-guided linac | |
| Perrett et al. | Evaluation of radiation detectors for the determination of field output factors in Leksell Gamma Knife dosimetry using 3D printed phantom inserts | |
| Pichler | IMRT plan delivery verification utilizing a spiral phantom with radiochromic film dosimetry | |
| Randall et al. | Teletherapy Alignment: A simplified method of quality control | |
| Reilly | Evaluation of a new electronic portal imaging device (EPID) for in vivo dosimetry applications |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| 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: 20171024 Termination date: 20181123 |