CN201877140U - Sealed radioactive source for tumor implantation therapy - Google Patents
Sealed radioactive source for tumor implantation therapy Download PDFInfo
- Publication number
- CN201877140U CN201877140U CN2010205827643U CN201020582764U CN201877140U CN 201877140 U CN201877140 U CN 201877140U CN 2010205827643 U CN2010205827643 U CN 2010205827643U CN 201020582764 U CN201020582764 U CN 201020582764U CN 201877140 U CN201877140 U CN 201877140U
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- radioactive source
- sealed
- sealed radioactive
- pipe shape
- shape body
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- Expired - Fee Related
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Abstract
The utility model discloses a sealed radioactive source for tumor implantation therapy, which comprises a round tube body, wherein two ends of the round tube body are in sealing connection with a pyramid which is formed by connecting isosceles triangular plates, and a metal rod containing radionuclide is arranged in a cavity which is enclosed by the round tube body and two irregular pyramids. The two ends of the sealed radioactive source for tumor implantation therapy are the pyramids which are formed by connecting isosceles triangular plates and the thickness of the triangular plates is as the same as the thickness of the round tube body wall, so the metal rod containing radionuclide in the cavity can uniformly radiate radials to the tumor tissues around the sealed radioactive source and the therapeutic action is excellent. The top of the pyramid is beneficial to implant tumor tissues, so as to relieve the pain of patient, caused by implanting the sealed radioactive source.
Description
Technical field
The utility model relates to a kind of sealed radioactive source, relates to a kind of sealed radioactive source that is used for oncotherapy specifically.
Background technology
Implant treatment or plesioradiotherapy between the sealed radioactive source tissue and be the new technology of the oncotherapy that grows up the nearly more than ten years, be with around sealed radioactive source implantation tumour or the tumour, the ray kill cancer cell that utilizes the radioactive nuclide of sealed radioactive source source core to emit reaches treatment and alleviates the purpose of disease.It mainly is adapted to the treatment of various entity tumors, as prostate cancer, breast cancer, liver cancer, brain tumor and oophoroma etc., has obtained excellent curative, and spinoff is little, and recurrence rate is low, and the patient need not be in hospital.This treatment technology from external introduction, through popularization and the clinical practice in nearly ten years, relies on its superior result of treatment at the beginning of 90, obtained domestic clinician and patient's approval, and the market demand is flourish.This treatment technology sealed radioactive source commonly used has iodine-125 sealed radioactive source, palladium-103 sealed radioactive source and cesium-131 sealed radioactive source.At present, the domestic and international sealed radioactive source of making that is used for the tumour implanted treatment, adopt the two ends of the pipe shape body of electron beam, argon arc welding machine or laser welding technology sealing sealed radioactive source, two ends are semicircular body, the wall thickness of the two ends semicircular body of such pipe shape body is about 5～10 times of pipe shape body wall thickness, because being used for the used radioactive nuclide of sealed radioactive source of tumour implanted treatment is low-energy, therefore, existing plug sealing technology causes the dose distribution of sealed radioactive source inhomogeneous, thereby influences result of treatment.Simultaneously, two ends are that the sealed radioactive source generalized case weldering end of semicircular body is slightly thicker than pipe shape body external diameter, when occurring " card rifle " phenomenon sometimes when tumour is implanted, and are difficult for entering in the tumor tissues when implanting, and use inconvenience.
The utility model content
The purpose of this utility model is to overcome the deficiency that prior art exists, and a kind of sealed radioactive source that is used for oncotherapy is provided.
The technical solution of the utility model is summarized as follows:
A kind of sealed radioactive source that is used for oncotherapy, comprise pipe shape body, the sealed at both ends shuttle cone that is formed by connecting by the isosceles triangle plate that is connected with of described pipe shape body is provided with the metal bar that contains radioactive nuclide in the cavity that described pipe shape body and two shuttle cones are surrounded.
Isosceles triangle plate quantity is preferably 3-12.
The diameter of pipe shape body is that 0.5～1.0mm, length are 3.0～10.0mm.
The diameter that contains the metal bar of radioactive nuclide is that 0.1～0.7mm, length are 2.0～3.5mm.
Radioactive nuclide is iodine-125, palladium-103 or cesium-131.
Advantage of the present utility model:
The two ends that are used for the sealed radioactive source of oncotherapy of the present utility model are the shuttle cones that are formed by connecting by triangular plate, the thickness of triangular plate is selected the consistency of thickness with pipe shape tube body wall for use, therefore, the metal bar that contains radioactive nuclide in cavity is the tumor tissues divergent-ray around sealed radioactive source evenly, play the good curing effect, simultaneously, because the top of shuttle cone is beneficial to the implantation tumour tissue, alleviates and implant the misery that sealed radioactive source causes the patient.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Embodiment
Below in conjunction with accompanying drawing the utility model is further described.
A kind of sealed radioactive source that is used for oncotherapy, comprise pipe shape body 1, the sealed at both ends shuttle cone 2 that is formed by connecting by the isosceles triangle plate that is connected with of pipe shape body is provided with the metal bar that contains radioactive nuclide in the cavity that pipe shape body and two shuttle cones are surrounded.
Isosceles triangle plate quantity is preferably 3-12.
The diameter of pipe shape body is that 0.5～1.0mm, length are 3.0～10.0mm.
The diameter that contains the metal bar of radioactive nuclide is that 0.1～0.7mm, length are 2.0～3.5mm.
Radioactive nuclide is iodine-125, palladium-103 or cesium-131.
Preparation process is: the metal bar that will contain radioactive nuclide is packed in the pipe shape body, and the two ends of pipe shape body are adopted laser to cut welding technology a plurality of triangular plates are welded into two shuttle cones, again with two shuttle cones and pipe shape body welded seal.
Claims (5)
1. sealed radioactive source that is used for oncotherapy, comprise pipe shape body, the sealed at both ends shuttle cone that is formed by connecting by the isosceles triangle plate that is connected with that it is characterized in that described pipe shape body is provided with the metal bar that contains radioactive nuclide in the cavity that described pipe shape body and two shuttle cones are surrounded.
2. a kind of sealed radioactive source that is used for oncotherapy according to claim 1 is characterized in that described isosceles triangle plate quantity is 3-12.
3. a kind of sealed radioactive source that is used for oncotherapy according to claim 1, the diameter that it is characterized in that described pipe shape body are that 0.5～1.0mm, length are 3.0～10.0mm.
4. a kind of sealed radioactive source that is used for oncotherapy according to claim 1 is characterized in that the described diameter that contains the metal bar of radioactive nuclide is that 0.1～0.7mm, length are 2.0～3.5mm.
5. according to claim 1 or 4 described a kind of sealed radioactive sources that are used for oncotherapy, it is characterized in that described radioactive nuclide is iodine-125, palladium-103 or cesium-131.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205827643U CN201877140U (en) | 2010-10-29 | 2010-10-29 | Sealed radioactive source for tumor implantation therapy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205827643U CN201877140U (en) | 2010-10-29 | 2010-10-29 | Sealed radioactive source for tumor implantation therapy |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201877140U true CN201877140U (en) | 2011-06-22 |
Family
ID=44165053
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205827643U Expired - Fee Related CN201877140U (en) | 2010-10-29 | 2010-10-29 | Sealed radioactive source for tumor implantation therapy |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201877140U (en) |
-
2010
- 2010-10-29 CN CN2010205827643U patent/CN201877140U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Sealed radioactive source for tumor implantation therapy Effective date of registration: 20120530 Granted publication date: 20110622 Pledgee: Pudong Shanghai Development Bank Limited by Share Ltd Tianjin branch Pledgor: Tianjin Saide Biological Pharmaceutical Co., Ltd. Registration number: 2012990000249 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20190523 Granted publication date: 20110622 Pledgee: Pudong Shanghai Development Bank Limited by Share Ltd Tianjin branch Pledgor: Tianjin Saide Biological Pharmaceutical Co., Ltd. Registration number: 2012990000249 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110622 Termination date: 20181029 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |