CN2309157Y - Irradiation light-limiting drum for curing tumor of pelvis - Google Patents
Irradiation light-limiting drum for curing tumor of pelvis Download PDFInfo
- Publication number
- CN2309157Y CN2309157Y CN 97239903 CN97239903U CN2309157Y CN 2309157 Y CN2309157 Y CN 2309157Y CN 97239903 CN97239903 CN 97239903 CN 97239903 U CN97239903 U CN 97239903U CN 2309157 Y CN2309157 Y CN 2309157Y
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- calimator
- short shaft
- projection
- ellipse
- arc
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Abstract
The utility model relates to an irradiation light-limiting drum for curing the tumor of a pelvis, which is a component of a linear accelerator. The utility model is characterized in that an elliptical annular light-limiting drum is connected to an annular cylinder base; the external wall at the upper part is a cylinder; the inner wall is an elliptic cylinder and the lower part is a circular cylinder. A convex block is arranged at the positive end of an elliptical short shaft at the upper end surface of the light-limiting drum; a left and a right end surface ends of the convex block are respectively coincident with one end surface of a circular arc surface; the other end surface of the circular arc surface is coincident with an inclined surface passing through the negative end of the elliptical short shaft; a notch is arranged on the upper end ring surface of the elliptic cylinder between the negative direction of the elliptical short shaft and the positive direction of an elliptical long shaft. The utility model proved by test and clinic trial has the advantages good therapeutic efficacy, small injury to prophetical soft tissue, etc.
Description
This utility model belongs to radiation and treats technical field, is specifically related to the parts of linear accelerator.
Calimator is the adnexa of linear accelerator, is used for the ray of linear accelerator emission is played the qualification effect, makes ray can kill the irradiation field inner tumour cell better, and can reduce damage to normal surrounding tissue.In tumor resection, tumor tissues and surrounding tissue are carried out radiotherapy with linear accelerator, it is a kind of new method of current combined therapy of tumour, used calimator is a cylindrical shape at present, the end face that contacts with human body is the plane, be applied to shine in the belly cavity tumor art of part thoracic cavity, because pelvic cavity is to borrow the pelvis wall and go up the soft tissue that covers to form re-entrant cavity, tub wall slopes inwardly, be inclusive with bladder in the pelvic cavity, internal organs such as rectum, contacting end face with human body is the position that planar calimator can not fully contain the needs irradiation, the calimator end face can not closely paste platform with the pelvic cavity face, has influence on the dose distribution of lonizing radiation, directly has influence on therapeutic effect.
The purpose of this utility model is to overcome the shortcoming of above-mentioned linear accelerator calimator, and a kind of position of closely pasting platform with human body pelvic tissue face, can fully contain the needs irradiation, the calimator that dose radiation is evenly distributed are provided.
For achieving the above object, the solution that this utility model adopts is: be provided with calimator on annular cylinder base.The profile in the upper level cross section of this utility model annular cylinder base is that circle, interior shape are ellipse, and the bottom of annular cylinder base is a cylindrical shape.Calimator of the present utility model is the oval ring calimator, forward at oval ring calimator upper end anchor ring minor axis has a projection, the left and right sides face end of this projection is kissed with an end face of an arc surface respectively and is connect, the other end of arc surface connects with the inclined-plane kiss of process ellipse short shaft negative sense, and a groove is arranged on ellipse ring surface between oval ring calimator upper surface ellipse short shaft negative sense and the transverse forward.
The projection of oval ring calimator of the present utility model upper end anchor ring minor axis forward is a projection that vertical section is a circular arc, two arc surfaces that connect with end, projection two sides kiss are about the symmetric arc surface of ellipse short shaft, and two inclined-planes that connect with two arc surface other ends kiss are about the symmetric inclined-plane of ellipse short shaft.Groove between oval ring calimator upper surface ellipse short shaft negative sense and the transverse forward on the ellipse ring surface is an arc groove.
The radius R of oval ring calimator of the present utility model upper surface circular arc projection
1Span is: 10mm≤R
1≤ 40mm; The radius R of two arc surfaces that connect with circular arc projection kiss
2Span is: 50mm≤R
2≤ 250mm; The span of the inclined-plane of process ellipse short shaft negative sense and the dihedral angle α of horizontal plane is: 10 °≤α≤35 °.
This utility model is that planar cylindrical shape calimator is compared with the end face that contacts with human body of linear accelerator, have with human body pelvic tissue face paste closely that platform, irradiation treatment are effective, ray leak the amount of penetrating few, to advantages such as surrounding soft tissue's damage are little, can be used for straight line and quicken therapeutic apparatus irradiation treatment in the tumor of pelvic cavity art.
Fig. 1 is the structural representation of an embodiment of this utility model.
Fig. 2 is the front view of annular cylinder base among Fig. 1.
Fig. 3 is the vertical view of Fig. 2.
Fig. 4 is the expanded view of oval ring calimator 1/2 upper surface among Fig. 1.
Below in conjunction with drawings and Examples this utility model is further described.
Fig. 1 has provided the structural representation of an embodiment of this utility model, in Fig. 1,2,3,4, is connected with oval ring calimator 1 with screw threads for fastening connector 3 in annular cylinder base 2.The profile of this utility model annular cylinder base 2 the first half horizontal sections is oval for circle, interior shape, and annular cylinder base 2 bottoms are divided into cylindrical shape.The lower surface of this utility model oval ring calimator 1 is the oval ring plane, interior long axis of ellipse is that 120mm, minor axis are 110mm, interior long axis of ellipse and minor axis also can be selected other physical dimension for use, annular cylindroid major axis of cylinder base 2 inwalls and minor axis should be slightly larger than cylindroid major axis of oval ring calimator 1 outer wall and minor axis, so that oval ring calimator 1 is fixed on the annular cylinder base 2.The forward of the upper end anchor ring minor axis of oval ring calimator 1 has a R
1Be the circular arc projection 1-1 of 40mm, the left surface end of circular arc projection 1-1 and a R
2For the end face of 250mm arc surface 1-2 kiss meets circular arc projection 1-1 right flank end and a R
2For the end face of 250mm arc surface 1-2 kiss connects, two arc surface 1-2 are about the ellipse short shaft symmetry, the other end of left circles cambered surface 1-2 connects with the inclined-plane 1-3 kiss of process ellipse short shaft negative sense, the other end of right circles cambered surface 1-2 connects with the inclined-plane 1-3 kiss of process ellipse short shaft negative sense, and the dihedral angle of inclined-plane 1-3 and horizontal plane is 35 °.On the ellipse ring surface between oval ring calimator 1 upper surface ellipse short shaft negative sense and the transverse forward, a semi-circular recesses 1-4 is arranged, circular arc projection 1-1, arc surface 1-2, inclined-plane 1-3, semi-circular recesses 1-4 that present embodiment oval ring calimator 1 upper surface is processed, make the upper surface of oval ring calimator 1 closely to paste platform, improved therapeutic effect with the human pelvis face.This utility model shows that through the test of Farmer 2570 dosers and through clinic trial the flatness of irradiation field of the present utility model, symmetry, the leakage amount of penetrating etc. all can satisfy clinical instructions for use.
The designer has provided second embodiment of this utility model.In the present embodiment, the R of the circular arc projection 1-1 of oval ring calimator 1 upper surface minor axis forward
1Be 10mm, the R of circular arc 1-2
2Be 50mm, inclined-plane 1-3 is 10 ° through the angle of ellipse short shaft negative sense and horizontal plane.The groove 1-4 between oval ring calimator 1 upper surface ellipse short shaft negative sense and the transverse forward on the ellipse ring surface and the geometry of annular cylinder base 2 are identical with first embodiment.
The designer has provided the 3rd embodiment of this utility model.In the present embodiment, the R of the circular arc projection 1-1 of oval ring calimator 1 upper surface minor axis forward
1Be 25mm, the R of circular arc 1-2
2Being 150mm, is 22.5 ° through the inclined-plane 1-3 of ellipse short shaft negative sense and the angle of horizontal plane.The groove 1-4 between oval ring calimator 1 upper surface ellipse short shaft negative sense and the transverse forward on the ellipse ring surface and the geometry of annular cylinder base 2 are identical with first embodiment.
Also can go out in the tumor of pelvic cavity art of another concrete structure to shine calimator according to above-mentioned principle design.
Claims (3)
1. shine calimator in a tumor of pelvic cavity art, be provided with calimator on annular cylinder base [2], it is characterized in that: the profile in above-mentioned annular cylinder base [2] upper level cross section is ellipse for circular, interior shape, and the bottom of annular cylinder base [2] is a cylindrical shape; Above-mentioned calimator is oval ring calimator [1], forward at oval ring calimator [1] upper end anchor ring ellipse short shaft has a projection [1-1], the left and right sides face end of this projection [1-1] is kissed with an end face of an arc surface [1-2] respectively and is connect, the other end of arc surface [1-2] connects with inclined-plane [1-3] kiss of process ellipse short shaft negative sense, on the ellipse ring surface groove [1-4] is being arranged between oval ring calimator [1] upper surface ellipse short shaft negative sense and the transverse forward
2. according to shining calimator in the described tumor of pelvic cavity art of claim 1, it is characterized in that: said oval ring calimator [1] upper end anchor ring minor axis forward projection [1-1] is the projection [1-1] that a vertical section is a circular arc; Said two arc surfaces [1-2] that connect with projection [1-1] two sides end kiss are about the symmetric arc surface of ellipse short shaft [1-2]; Said two inclined-planes [1-3] that connect with two arc surface mouth [1-2] other ends kiss are about the symmetric inclined-plane of ellipse short shaft [1-3]; Said groove [1-4] is a circular arc.
3. according to shining calimator in claim 1 or the 2 described tumor of pelvic cavity arts, it is characterized in that said oval ring calimator [1] upper end projection [1-1] vertical section arc radius R
1Span be: 10mm≤R
1≤ 40mm; Said arc surface [1-2] radius R
2Span be: 50mm≤R
2≤ 250mm; The inclined-plane [1-3] of said process ellipse short shaft negative sense with the span of the dihedral angle α of horizontal plane is: 10 °≤α≤35 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97239903 CN2309157Y (en) | 1997-07-24 | 1997-07-24 | Irradiation light-limiting drum for curing tumor of pelvis |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97239903 CN2309157Y (en) | 1997-07-24 | 1997-07-24 | Irradiation light-limiting drum for curing tumor of pelvis |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2309157Y true CN2309157Y (en) | 1999-03-03 |
Family
ID=33949796
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 97239903 Expired - Fee Related CN2309157Y (en) | 1997-07-24 | 1997-07-24 | Irradiation light-limiting drum for curing tumor of pelvis |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2309157Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102100949A (en) * | 2009-12-17 | 2011-06-22 | 卡尔·蔡斯外科有限公司 | Application device for X-ray therapy, fixing device and radiotherapy device |
| CN104436450A (en) * | 2013-09-25 | 2015-03-25 | 苏州雷泰医疗科技有限公司 | Light limiting device for radiotherapy device and radiotherapy device |
-
1997
- 1997-07-24 CN CN 97239903 patent/CN2309157Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102100949A (en) * | 2009-12-17 | 2011-06-22 | 卡尔·蔡斯外科有限公司 | Application device for X-ray therapy, fixing device and radiotherapy device |
| CN102100949B (en) * | 2009-12-17 | 2015-09-23 | 卡尔蔡斯医药技术股份公司 | For the radiocurable apparatus for wave-energy source device of X-ray and radiotherapy equipment |
| CN104436450A (en) * | 2013-09-25 | 2015-03-25 | 苏州雷泰医疗科技有限公司 | Light limiting device for radiotherapy device and radiotherapy device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |