CN2788832Y - Radioactive sealed seed source - Google Patents
Radioactive sealed seed source Download PDFInfo
- Publication number
- CN2788832Y CN2788832Y CN 200520056167 CN200520056167U CN2788832Y CN 2788832 Y CN2788832 Y CN 2788832Y CN 200520056167 CN200520056167 CN 200520056167 CN 200520056167 U CN200520056167 U CN 200520056167U CN 2788832 Y CN2788832 Y CN 2788832Y
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- CN
- China
- Prior art keywords
- groove
- seed source
- sealed seed
- radioactive
- outer shell
- 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
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Abstract
The utility model discloses a radioactive sealed seed source, which comprises a radioactive nuclide 1 and an outer shell 2. One or more than one groove, or concave hole, or bulge is arranged on the surface of the outer shell 2. The groove can be an annular groove 3 which can be encircled on the outer shell along a circumferential direction. Three annular grooves 3 are distributed at intervals along a symmetrical shaft of the outer shell. The groove can be a spiral line-shaped groove which uses the symmetrical shaft of the outer shell as a spiral shaft. The radioactive sealed seed source of the utility model is not easy to swim in tissues, can be stably fixed in target tissues and can not cause unnecessary radiation to non target tissues. The safe performance and the practicability of the radioactive sealed seed source which is embedded into a body are increased.
Description
Technical field
This utility model relates to a kind of radioactive sealed seed source, the particularly shell in seed source.
Background technology
Treatment is that radionuclide is sealed in metal or the composite with radioactive sealed seed source, implants as radioactive source.A large amount of in the world clinical trials show, after treatment implanted with radioactive sealed seed source, low coverage was shone some tumor, are that a kind of damage is less, curative effect Therapeutic Method preferably.Radioactive seed source close-range treatment tumor makes its clinical practice show wide prospect because its wound is little, target dose is evenly distributed and normal surrounding tissue is damaged characteristics such as little.
Radioactive sealed seed source commonly used now, shell is cylindrical, smooth in appearance.Behind implanting tissue, because smooth in appearance, the easy migration in seed source of implantation causes non-target tissue to be subjected to unnecessary radiation, even causes the necrosis of indivedual tissues or blood vessel in its hetero-organization or blood vessel.
Summary of the invention
The purpose of this utility model provides a kind of radioactive sealed seed source, is difficult for migration in tissue, can stably be fixed in the target tissue.
A kind of radioactive sealed seed described in the utility model source comprises radionuclide and shell, and one or above groove or shrinkage pool or projection are arranged on the case surface.
Described groove can be for being looped around the annular recess on the shell.There are three annular recess to be uniformly distributed on the shell.
Described groove also can be circular helix shape groove.
Above-mentioned radioactive sealed seed source, behind implanting tissue, the groove on the case surface has increased the frictional force of seed source and surrounding tissue, makes it be difficult for migration in tissue.Therefore radioactive sealed seed of the present utility model source is difficult for migration in tissue, can stably be fixed in the target tissue, can not cause unnecessary radiation to non-target tissue, has increased safety and practicality that radioactive sealed seed source implants greatly.
Also can be on the case surface without groove, and increase frictional force with forms such as shrinkage pool or projections.
Below in conjunction with the drawings and specific embodiments this utility model is described in further detail.
Description of drawings
Fig. 1 is the profile that this utility model has annular recess.
Fig. 2 is the outside drawing that this utility model has annular recess.
Fig. 3 is the outside drawing that this utility model has cylindrical screw wire groove.
Fig. 4 is the bossed outside drawing of this utility model.
The specific embodiment
Embodiment 1
Referring to Fig. 1 and Fig. 2, the shell 2 in the radioactive sealed seed source of present embodiment is the high-density titanium alloy pipe, built-in radionuclide 1---full pole brand iodine [
125I] isotopic palladium silk.Titanium alloy tube diameter 0.8mm, length 4.5mm, wall thickness 0.05mm.Three annular recess 3 that are looped around on the shell 2 are arranged on shell 2 surfaces, be uniformly distributed on the shell 2.
The radioactive sealed seed source of present embodiment can be by the puncture technique transplanting in entity tumor; Also can be on groove when using tie up and form a stringly in that needs are a large amount of, be put on the surgical wound surface with line.
Referring to Fig. 3, cylindrical screw wire groove 4 is arranged on shell 2 surfaces.All the other are with embodiment 1.
Embodiment 3
Referring to Fig. 4, titanium alloy tube diameter 0.75mm, shell has projection 5 on 2 surfaces.All the other are with embodiment 1.
Claims (4)
1. a radioactive sealed seed source comprises radionuclide (1) and shell (2), it is characterized in that, one or above groove or shrinkage pool or projection (5) are arranged on shell (2) surface.
2. radioactive sealed seed according to claim 1 source is characterized in that, described groove is for being looped around the annular recess (3) on the shell (2).
3. radioactive sealed seed according to claim 2 source is characterized in that, has three annular recess (3) to be uniformly distributed on the shell (2).
4. radioactive sealed seed according to claim 1 source is characterized in that, described groove is a cylindrical screw wire groove (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520056167 CN2788832Y (en) | 2005-03-29 | 2005-03-29 | Radioactive sealed seed source |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520056167 CN2788832Y (en) | 2005-03-29 | 2005-03-29 | Radioactive sealed seed source |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2788832Y true CN2788832Y (en) | 2006-06-21 |
Family
ID=36789173
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520056167 Expired - Fee Related CN2788832Y (en) | 2005-03-29 | 2005-03-29 | Radioactive sealed seed source |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2788832Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105188845A (en) * | 2013-03-14 | 2015-12-23 | C·R·巴德股份有限公司 | Brachytherapy seed insertion and fixation system |
| CN105749300A (en) * | 2016-02-24 | 2016-07-13 | 赛昂国际医疗技术（中国）有限公司 | Marker and transferring device thereof |
| US9431138B2 (en) | 2009-07-10 | 2016-08-30 | Ge-Hitachi Nuclear Energy Americas, Llc | Method of generating specified activities within a target holding device |
| CN111148477A (en) * | 2017-10-31 | 2020-05-12 | 4科技有限公司 | Tissue anchor with hemostatic features |
-
2005
- 2005-03-29 CN CN 200520056167 patent/CN2788832Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9431138B2 (en) | 2009-07-10 | 2016-08-30 | Ge-Hitachi Nuclear Energy Americas, Llc | Method of generating specified activities within a target holding device |
| CN105188845A (en) * | 2013-03-14 | 2015-12-23 | C·R·巴德股份有限公司 | Brachytherapy seed insertion and fixation system |
| US9884205B2 (en) | 2013-03-14 | 2018-02-06 | C. R. Bard, Inc. | Brachytherapy seed insertion and fixation system |
| CN105749300A (en) * | 2016-02-24 | 2016-07-13 | 赛昂国际医疗技术（中国）有限公司 | Marker and transferring device thereof |
| CN111148477A (en) * | 2017-10-31 | 2020-05-12 | 4科技有限公司 | Tissue anchor with hemostatic features |
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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 |