CN205672127U - Orthotype radioactivity sclera applicator - Google Patents
Orthotype radioactivity sclera applicator Download PDFInfo
- Publication number
- CN205672127U CN205672127U CN201620192844.5U CN201620192844U CN205672127U CN 205672127 U CN205672127 U CN 205672127U CN 201620192844 U CN201620192844 U CN 201620192844U CN 205672127 U CN205672127 U CN 205672127U
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- China
- Prior art keywords
- source
- sclera
- radioactivity
- orthotype
- directional type
- Prior art date
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- 210000003786 sclera Anatomy 0.000 title claims abstract description 42
- 229910052737 gold Inorganic materials 0.000 claims abstract description 4
- 239000002184 metal Substances 0.000 claims abstract 2
- 229910052751 metal Inorganic materials 0.000 claims abstract 2
- 239000000463 material Substances 0.000 claims description 2
- 206010028980 Neoplasm Diseases 0.000 abstract description 9
- 201000011510 cancer Diseases 0.000 abstract description 2
- 230000000191 radiation effect Effects 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 3
- 230000005855 radiation Effects 0.000 description 3
- 230000002285 radioactive effect Effects 0.000 description 3
- 241000050051 Chelone glabra Species 0.000 description 2
- 231100000987 absorbed dose Toxicity 0.000 description 2
- 230000005251 gamma ray Effects 0.000 description 2
- 210000003733 optic disk Anatomy 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 229910001069 Ti alloy Inorganic materials 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 238000005253 cladding Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
- 229960001866 silicon dioxide Drugs 0.000 description 1
- 210000001519 tissue Anatomy 0.000 description 1
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- Prostheses (AREA)
Abstract
The utility model discloses a kind of " orthotype radioactivity sclera applicator " being made up of mini-radioactive resource, flexible source torr and directional type radome.Wherein mini-radioactive resource uses125I or103Pd sealed seed source；Described flexible source is held in the palm and is evenly equipped with the long square groove inlaying seed source on its spherical outside surface；Described directional type radome is the polar caps having retaining ring, manufactures with metal Ta or Au, and stretches out 23 " earrings " from retaining ring edge.Feature of the present utility model is to be inlaid with in the source torr overall embedment directional type radome of seed source, the back side making source hold in the palm is shielded with the low-energyγ-ray of week edge emitting, only allow the front side emitter low-energyγ-ray that source is held in the palm, thus strengthen the radiation effect killing intraocular cancer cell, reduce normal tissue and produce unnecessary irradiation.The invention also discloses without groove and the technical parameter having groove directed type radioactivity sclera applicator, for treatment different size, the intraocular tumour of different parts.
Description
Technical field
The utility model relates to a kind of close-range treatment apparatus.It is more specifically a kind of that " orthotype radioactivity sclera applies
Patch device ".It belongs to the category of radioactivity sclera applicator.
Background technology
Disclosed commonly125I radioactivity sclera applicator is made up of mini-radioactive resource, flexible source torr and radome.First
The radioactive source is selected to be125I sealed seed source.Flexible source torr uses medical silica-gel torr, (refers to convex surface position) uniform multiple outside it
Long square groove, i.e. forms irradiation parts after inlaying neutron source.(referring to concave surface position) inside it is low-energyγ-ray launch site, can
Irradiate intraocular tumour.Radome is then used for shielding source and holds in the palm the low-energyγ-ray that (i.e. the source torr back side) launches laterally.But, this
Class125I radioactivity sclera applicator, the source being combined with radome torr (is inlaid with125I seals neutron source), its thickness nearly has
2mm.When applicator is temporarily fixed on eye sclera, has part low-energyγ-ray and just scattering to intraocular from source torr periphery
Often tissue, causes unnecessary radiation.
Additionally, for published125I groove-shaped radioactivity sclera applicator, be by mini-radioactive resource, slot type source hold in the palm and
Slot type radome is constituted.When slot type source torr and the assembling of slot type radome, also run into same problem.γ from source torr periphery scattering
Part intraocular normal structure can be caused unnecessary irradiation by ray.
Content of the invention
The utility model objective is in order to overcome the defect of existing radioactivity sclera applicator and to design and manufacture.Its mesh
Be to increase radiation to the effect killing intraocular cancer cell, reduce radiation and the side effect producing irradiated to intraocular normal structure.
The utility model appellation " orthotype radioactivity sclera applicator ", is by mini-radioactive resource, flexible source torr and " orientation
Formula " radome is constituted.Described mini-radioactive resource uses125I or103Pd sealed seed source.
Described source torr is evenly equipped with the long square groove that can inlay seed source on its spherical outside surface.Source torr gross thickness less than 2mm, due to
Directly not contacting with sclera during use, the edge of source torr is not necessarily to chamfering.
Described directional type radome is maximum feature of the present utility model.It is by polar caps (being similar to outward skull cap) and retaining ring
(like hat brim) is integrally formed, and is made by the thick metal-back (Au or Ta) of 0.5mm.
Inlay the source after seed source to hold in the palm when assembling with directional type radome, directional type shielding can be wholly embedded into from retaining ring mouth
In cover.The advantage of this construction is apparent.On the one hand, described directional type shielding is covered with the high retaining ring of ＜ 3mm, is equivalent in source
Torr peripheral direction too increases one barrier, makes embedment in it or speech encloses its interior source torr from its edge scatter low energy out
Gamma-rays is shielded.On the other hand, owing to the spherical outside surface of source torr is identical with the radius of curvature of the Internal Spherical Surface of directional type radome,
Because of capillary effect, not only fit very tight, and completely avoid applicator in use occur seed source take off
The potential risk falling.
Described orthotype radioactivity sclera applicator, is divided into " without groove " and " having groove " two serial products.The latter
It is specifically designed to long oncotherapy near optic disk.
For " without groove " orthotype radioactivity sclera applicator series of products, when the spherical outside surface of directional type radome
Size be respectively the 16th, the 18th, the 20th, 22mm when, the source torr matching with directional type radome, the seed source number that can inlay successively is 18
Grain, 20,24,30.
For the orthotype radioactivity sclera applicator series of products of " having groove ", when the shielding of " having groove " directional type
Cover spherical outside surface size be respectively the 16th, the 18th, the 20th, 22mm when, its groove width is 7mm, and corresponding trench length is then followed successively by
6、7、8、9mm.Additionally, also there is identical groove chi with " having groove " source torr that " having groove " directional type radome matches
Very little.
For the orthotype radioactivity sclera applicator of " having groove ", match with " having groove " directional type radome
Source is held in the palm " to have groove ", and the seed source number inlayed successively is 15,18,20,27.
No matter described orthotype radioactivity sclera applicator, have groove or without groove, the source torr of different size be respectively provided with one
Fixed active region diameter, selects for during hospital surgical.
Brief description
The directional type radome three-dimensional view that Fig. 1 is " without groove " orthotype radioactivity sclera applicator.
The flexible source torr front view that Fig. 2 is " without groove " orthotype radioactivity sclera applicator.
The directional type radome three-dimensional view that Fig. 3 is " having groove " orthotype radioactivity sclera applicator.
Detailed description of the invention
The utility model appellation " orthotype radioactivity sclera applicator ", by mini-radioactive resource, flexible source torr and " orientation
Formula " radome is constituted.
Described mini-radioactive resource uses125I sealed seed source or103Pd sealed seed source.Two class seed source product performances are such as
Under: the half-life of I-125 is 59.4 days, average energy of γ ray 27-28keV；The half-life of Pd-103 is 16.96 days, averagely
Energy of γ ray 21-23keV.The cladding materials of two class seed sources is titanium alloy, and outside dimension is Φ 0.8mm × 4.5mm, wall
Thick is 0.05mm, and radioactive activity requires ＞ 0.7mCi/ grain.
Fig. 1 show the directional type radome three-dimensional view of " without groove " orthotype radioactivity sclera applicator.Disclosed
Directional type radome be polar caps (the be similar to outward skull cap) retaining ring (similar hat brim) high with ＜ 3mm to be integrally formed, by 0.5mm
Thick metal-back (Au or Ta) is made.Radome edge processing 2-3 " earrings ", it is simple to will with suture through its center hole during operation
Applicator is fixed on eye sclera.
Fig. 2 show the flexible source torr front view of " without groove " orthotype radioactivity sclera applicator.Thickness ＜ is held in the palm in source
2mm, edge is not necessarily to chamfering.Use computer three-dimensional software on the spherical outside surface of source torr, design and be machined with multiple rectangular grain, with
Guarantee seed source inlay after source torr obtain the Spatial dose that is evenly distributed.
Sealed seed source, when practical set, is first embedded in flexible source torr by described orthotype radioactivity type sclera applicator
On, then in the directional type radome that its overall embedment or inclosure are matched.Internal Spherical Surface and source due to directional type radome
The spherical outside surface of torr has same curvature radius (R12.5 ± 0.1mm), can fit very tight.In addition, the putting of this structure
The back side and side (referring to periphery) that penetrating property sclera applicator holds in the palm due to source have gamma shield, only leave the front of applicator
(referring to the concave surface that source is held in the palm), as the launch window of single direction cover intraocular tumour, result for the treatment of more preferably, uses and also more pacifies
Entirely.
Fig. 3 show the directional type radome three-dimensional view of " having groove " orthotype radioactivity sclera applicator.This type is put
Penetrating property sclera applicator is specifically designed to the tumour near treatment optic disk.For fluted directional type radome, its outside dimension is advised
The 16th, lattice are respectively the 18th, the 20th, 22mm, and their groove width is 7mm, and the 7th, the 8th, the 6th, corresponding trench length be then followed successively by
9mm.As for " having groove " source torr that " having groove " directional type radome matches, also there is identical groove dimensions.
For " without groove " orthotype radioactivity sclera applicator series of products, when the spherical outside surface of directional type radome
Size be respectively the 16th, the 18th, the 20th, 22mm when, the source torr matching with directional type radome, the seed source number that can inlay successively is 18
Grain, 20,24,30.
For " having groove " orthotype radioactivity sclera applicator, there is ditch with fluted directional type radome matches
The source torr of groove, the seed source number inlayed successively is 15,18,20,27.
No matter described orthotype radioactivity sclera applicator, have groove or without groove, the source torr of different size be respectively provided with not
With the active region diameter of size, select for during hospital surgical.
When specifically chosen orthotype radioactivity sclera applicator product, the first growth position according to patient's intraocular tumour
Put, determine and use without groove or fluted series of products；Secondly, the active region diameter according to applicator should be able to cover patient
The end footpath of tumour, and beyond the requirement at its edge 2-3mm (referring to radial direction) determining the concrete specification of selected series of products, bag
Include source torr (quantity containing seed source) and directional type radome specification: again, should be according to patient tumors height, when applicator dispatches from the factory
Radioactive activity (is pressed125I or103The correction of Pd decay table was to the operation date on the same day), and the sclera applicator axle that specification is given
To absorbed dose rate distribution curve, calculate the irradiation time reaching needed for optimal total absorbed dose.
Claims (8)
1. an orthotype radioactivity sclera applicator, it is characterised in that include mini-radioactive resource, flexible source torr and directional type screen
Covering cover, described mini-radioactive resource uses125I or103Pd sealed seed source；Described flexible source is held in the palm and is evenly equipped with on its spherical outside surface and can inlay
The long square groove of seed source；Described directional type radome is the polar caps having retaining ring, manufactures with metal Ta or Au, and stretches from retaining ring edge
Go out 2-3 earrings.
2. orthotype radioactivity sclera applicator according to claim 1, it is characterised in that the thickness ＜ of flexible source torr
2mm, is wholly embedded in directional type radome.
3. orthotype radioactivity sclera applicator according to claim 1, it is characterised in that the material of directional type radome
Thickness is 0.5mm, retaining ring height ＜ 3mm.
4. the orthotype radioactivity sclera applicator according to claim 1-3 any claim, it is characterised in that orientation
The Internal Spherical Surface of formula radome has identical radius of curvature with the spherical outside surface of flexible source torr.
5. orthotype radioactivity sclera applicator according to claim 1, it is characterised in that directional type radome is for without ditch
The directional type radome of groove or fluted directional type radome.
6. orthotype radioactivity sclera applicator according to claim 5, it is characterised in that when the directional type screen without groove
Cover the spherical outside surface size of cover be respectively the 16th, the 18th, the 20th, 22mm when, the matched flexible source torr without groove, inlay 18 successively
Grain, 20,24,30 seed sources.
7. orthotype radioactivity sclera applicator according to claim 5, it is characterised in that when fluted directional type screen
Cover the spherical outside surface size of cover be respectively the 16th, the 18th, the 20th, 22mm when, the 6th, its corresponding trench length is followed successively by the 7th, the 8th, 9mm, ditch groove width
Degree is 7mm；Matched fluted flexible source torr has identical trench length and groove width.
8. the orthotype radioactivity sclera applicator according to claim 5 and 7 any claim, it is characterised in that when having
The spherical outside surface size of the directional type radome of groove be respectively the 16th, the 18th, the 20th, 22mm when, matched fluted flexibility
Source is held in the palm, and inlays 15,18,20,27 seed sources successively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620192844.5U CN205672127U (en) | 2016-03-15 | 2016-03-15 | Orthotype radioactivity sclera applicator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620192844.5U CN205672127U (en) | 2016-03-15 | 2016-03-15 | Orthotype radioactivity sclera applicator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205672127U true CN205672127U (en) | 2016-11-09 |
Family
ID=57438413
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620192844.5U Active CN205672127U (en) | 2016-03-15 | 2016-03-15 | Orthotype radioactivity sclera applicator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205672127U (en) |
-
2016
- 2016-03-15 CN CN201620192844.5U patent/CN205672127U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200422 Address after: Room 2068, building 1, No. 6, Nanjiang Second Road, Zhujiang street, Nansha District, Guangzhou City, Guangdong Province Patentee after: Guangzhou Kangjin Medical Technology Co., Ltd Address before: 100081 No. 12 South Street, Beijing, China Academy of Agricultural Sciences, 3-1206, Zhongguancun Patentee before: Cai Shanyu |
|
| TR01 | Transfer of patent right |