CN114146324A - Manufacturing process of PET scattering die body - Google Patents
Manufacturing process of PET scattering die body Download PDFInfo
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- CN114146324A CN114146324A CN202010926354.4A CN202010926354A CN114146324A CN 114146324 A CN114146324 A CN 114146324A CN 202010926354 A CN202010926354 A CN 202010926354A CN 114146324 A CN114146324 A CN 114146324A
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- solid water
- tungsten
- equivalent
- placing
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N5/00—Radiation therapy
- A61N5/10—X-ray therapy; Gamma-ray therapy; Particle-irradiation therapy
- A61N5/1048—Monitoring, verifying, controlling systems and methods
- A61N5/1071—Monitoring, verifying, controlling systems and methods for verifying the dose delivered by the treatment plan
Abstract
The invention discloses a manufacturing process of a PET scattering die body, which comprises the following steps: (1) preparing materials: solid water, tungsten balls, tungsten rings and equivalent rods; (2) material treatment: uniformly mixing solid water, performing ultrasonic treatment for 10 minutes, placing the treated solid water in a vacuum drying oven, vacuumizing for 30 minutes to discharge bubbles, then placing the solid water in a cube mold which is hollow inside and is provided with an opening at the upper end face, and reserving a part of solid water for later use; (3) manufacturing a mold body: filling a tungsten ball, a tungsten ring and an equivalent rod in a square mould filled with solid water by adopting mechanical filling, and sealing the gap by using treated retained solid water; (4) sealing the square mould filled with solid water, tungsten balls, tungsten rings and equivalent rods, putting the square mould into a vacuum drying oven, and curing for 2 hours at 75 ℃; (5) and (6) demolding. The PET scattering die body is manufactured by the traditional process, mechanical manufacturing is utilized, the precision is higher, and the manufacturing cost is lower.
Description
Technical Field
The invention relates to the field of medical instruments, in particular to a manufacturing process of a PET scattering die body.
Background
Surgery, chemotherapy and radiotherapy are three major means for treating malignant tumors, and 50% -70% of patients need radiotherapy in the tumor treatment process. While the quality control of radiotherapy is a prerequisite for correct implementation of radiotherapy, the dose verification before radiotherapy needs to be verified by using a phantom. In the using process, the coincidence degree of the radiation field and the light field indicated by the angles of 90 degrees, 180 degrees, 270 degrees and 360 degrees of the linear accelerator and the simulation positioning machine needs to be verified, namely, multi-angle verification needs to be carried out, and angle verification of 45 degrees, 315 degrees and the like needs to be carried out.
Disclosure of Invention
In view of the above-mentioned drawbacks and deficiencies of the prior art, it is desirable to provide a process for fabricating a PET scattering phantom.
According to the technical scheme provided by the embodiment of the application, the manufacturing process of the PET scattering die body comprises the following steps:
(1) preparing materials: solid water, tungsten balls, tungsten rings and equivalent rods;
(2) material treatment: uniformly mixing solid water, performing ultrasonic treatment for 10 minutes, placing the treated solid water in a vacuum drying oven, vacuumizing for 30 minutes to discharge bubbles, then placing the solid water in a cube mold which is hollow inside and is provided with an opening at the upper end face, and reserving a part of solid water for later use;
(3) manufacturing a mold body: filling a tungsten ball, a tungsten ring and an equivalent rod in a square mould filled with solid water by adopting mechanical filling, and sealing the gap by using treated retained solid water;
(4) sealing the square mould filled with solid water, tungsten balls, tungsten rings and equivalent rods, putting the mould box into a vacuum drying oven, and curing at 75 ℃ for 2 hours;
(5) and (5) demolding and molding the mold body.
In the invention, during mechanical loading, the placing depth and the placing angle of the tungsten ball, the tungsten ring and the equivalent rod can be adjusted.
In the invention, the equivalent rod is made of black PVC material, and the density is consistent with the density of human bones.
To sum up, the beneficial effect of this application: the PET scattering die body is manufactured by the traditional process, mechanical manufacturing is utilized, the precision is higher, and the manufacturing cost is lower.
Drawings
Other features, objects and advantages of the present application will become more apparent upon reading of the following detailed description of non-limiting embodiments thereof, made with reference to the accompanying drawings in which:
FIG. 1 is a schematic perspective view of a PET scattering phantom according to the present invention.
Reference numbers in the figures: a die body-1; tungsten ball-2; tungsten ring-3; equivalent rod-4.
Detailed Description
The present application will be described in further detail with reference to the following drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the relevant invention and not restrictive of the invention. It should be noted that, for convenience of description, only the portions related to the present invention are shown in the drawings.
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.
A manufacturing process of a PET scattering die body comprises the following steps:
(1) preparing materials: solid water, tungsten balls, tungsten rings and equivalent rods;
(2) material treatment: uniformly mixing solid water, performing ultrasonic treatment for 10 minutes, placing the treated solid water in a vacuum drying oven, vacuumizing for 30 minutes to discharge bubbles, then placing the solid water in a cube mold which is hollow inside and is provided with an opening at the upper end face, and reserving a part of solid water for later use;
(3) manufacturing a mold body: filling a tungsten ball, a tungsten ring and an equivalent rod in a square mould filled with solid water by adopting mechanical filling, and sealing the gap by using treated retained solid water;
(4) sealing the square mould filled with solid water, tungsten balls, tungsten rings and equivalent rods, putting the mould box into a vacuum drying oven, and curing at 75 ℃ for 2 hours;
(5) and (5) demolding and molding the mold body.
During mechanical loading, the placing depth and the placing angle of the tungsten ball, the tungsten ring and the equivalent rod can be adjusted. The equivalent rod is made of black PVC material, and the density is consistent with the human bone density.
The mechanical filling adopts an automatic mechanical arm to grasp the filling materials for direct filling.
The foregoing description is only exemplary of the preferred embodiments of the application and is provided for the purpose of illustrating the general principles of the technology and the like. Meanwhile, the scope of the invention according to the present application is not limited to the technical solutions in which the above-described technical features are combined in a specific manner, and also covers other technical solutions in which the above-described technical features or their equivalent are combined arbitrarily without departing from the inventive concept described above. For example, the above features may be replaced with (but not limited to) features having similar functions disclosed in the present application.
Claims (3)
1. A manufacturing process of a PET scattering die body is characterized by comprising the following steps: the method comprises the following steps:
(1) preparing materials: solid water, tungsten balls, tungsten rings and equivalent rods;
(2) material treatment: uniformly mixing solid water, performing ultrasonic treatment for 10 minutes, placing the treated solid water in a vacuum drying oven, vacuumizing for 30 minutes to discharge bubbles, then placing the solid water in a cube mold which is hollow inside and is provided with an opening at the upper end face, and reserving a part of solid water for later use;
(3) manufacturing a mold body: filling a tungsten ball, a tungsten ring and an equivalent rod in a square mould filled with solid water by adopting mechanical filling, and sealing the gap by using treated retained solid water;
(4) sealing the square mould filled with solid water, tungsten balls, tungsten rings and equivalent rods, putting the mould box into a vacuum drying oven, and curing at 75 ℃ for 2 hours;
(5) and (5) demolding and molding the mold body.
2. The process of claim 1, wherein the process comprises the following steps: during mechanical loading, the placing depth and the placing angle of the tungsten ball, the tungsten ring and the equivalent rod can be adjusted.
3. The process of claim 1, wherein the process comprises the following steps: the equivalent rod is made of black PVC material, and the density is consistent with the human bone density.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010926354.4A CN114146324A (en) | 2020-09-07 | 2020-09-07 | Manufacturing process of PET scattering die body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010926354.4A CN114146324A (en) | 2020-09-07 | 2020-09-07 | Manufacturing process of PET scattering die body |
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| Publication Number | Publication Date |
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| CN114146324A true CN114146324A (en) | 2022-03-08 |
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| CN202010926354.4A Pending CN114146324A (en) | 2020-09-07 | 2020-09-07 | Manufacturing process of PET scattering die body |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5625137A (en) * | 1995-05-25 | 1997-04-29 | Wisconsin Alumni Research Foundation | Very low scatter liquid and solid tissue mimicking material for ultrasound phantoms and method of making the same |
| US20050095296A1 (en) * | 2003-11-05 | 2005-05-05 | Lowman Anthony M. | Hydrogel compositions and manufacturing process for ultrasound couplants |
| DE202011104321U1 (en) * | 2011-08-12 | 2011-11-16 | Universitätsklinikum Frankfurt am Main | Measuring phantoms for checking the positioning accuracy of patient positioning devices in percutaneous radiotherapy on CTs, simulators and linear accelerators as well as the imaging properties of their imaging systems and the correct data transmission and data handling between the different systems (NK-100) |
| US20160015356A1 (en) * | 2014-07-18 | 2016-01-21 | Gammex, Inc. | Brain Tissue Equivalent Material And Phantom Device Comprising The Same |
| WO2016058898A2 (en) * | 2014-10-13 | 2016-04-21 | Universität Rostock | Method for the production of standardized tumor phantoms, and apparatus and method for validating devices for medical-tomographic imaging systems |
| US20170050052A1 (en) * | 2015-07-09 | 2017-02-23 | Eric A. Burgett | Patient-specific, multi-material, multi-dimensional anthropomorphic human equivalent phantom and hardware fabrication method |
| US20170333007A1 (en) * | 2016-05-17 | 2017-11-23 | Korea Research Institute Of Standards And Science | Ultrasound phantom for focused ultrasound, method for manufacturing the same, biomimetic hydrogel phantom, method for manufacturing the same, discoloring method and drug delivering method using the same |
| DE202020001211U1 (en) * | 2020-03-27 | 2020-07-13 | Deutsches Krebsforschungszentrum Stiftung des öffentlichen Rechts | Phantom for aligning the beam and imaging isocenter of a magnetic resonance linear accelerator |
-
2020
- 2020-09-07 CN CN202010926354.4A patent/CN114146324A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5625137A (en) * | 1995-05-25 | 1997-04-29 | Wisconsin Alumni Research Foundation | Very low scatter liquid and solid tissue mimicking material for ultrasound phantoms and method of making the same |
| US20050095296A1 (en) * | 2003-11-05 | 2005-05-05 | Lowman Anthony M. | Hydrogel compositions and manufacturing process for ultrasound couplants |
| DE202011104321U1 (en) * | 2011-08-12 | 2011-11-16 | Universitätsklinikum Frankfurt am Main | Measuring phantoms for checking the positioning accuracy of patient positioning devices in percutaneous radiotherapy on CTs, simulators and linear accelerators as well as the imaging properties of their imaging systems and the correct data transmission and data handling between the different systems (NK-100) |
| US20160015356A1 (en) * | 2014-07-18 | 2016-01-21 | Gammex, Inc. | Brain Tissue Equivalent Material And Phantom Device Comprising The Same |
| WO2016058898A2 (en) * | 2014-10-13 | 2016-04-21 | Universität Rostock | Method for the production of standardized tumor phantoms, and apparatus and method for validating devices for medical-tomographic imaging systems |
| US20170050052A1 (en) * | 2015-07-09 | 2017-02-23 | Eric A. Burgett | Patient-specific, multi-material, multi-dimensional anthropomorphic human equivalent phantom and hardware fabrication method |
| US20170333007A1 (en) * | 2016-05-17 | 2017-11-23 | Korea Research Institute Of Standards And Science | Ultrasound phantom for focused ultrasound, method for manufacturing the same, biomimetic hydrogel phantom, method for manufacturing the same, discoloring method and drug delivering method using the same |
| DE202020001211U1 (en) * | 2020-03-27 | 2020-07-13 | Deutsches Krebsforschungszentrum Stiftung des öffentlichen Rechts | Phantom for aligning the beam and imaging isocenter of a magnetic resonance linear accelerator |
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