Internal radiotherapy device which can be easily removed from body

A radioactive source and spacer technology, which is applied in the field of medical devices, can solve the problems of patients' mental or physical burden, radioactive source falling off or migrating, and dose distribution changes, so as to reduce unnecessary exposure, avoid falling off or migrating, and have no residue Effect

Inactive Publication Date: 2019-01-11
天津赛德医药研究院有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, this method (radioactive interstitial implantation therapy) also has some disadvantages, such as (1) the position and arrangement of the radioactive source are affected by organ activities after implantation, resulting in changes in dose distribution and affecting the therapeutic effect; (2) the presence of radioactive source Falling off or migrating; (3) The radioactive source remains in the body and is difficult to remove after treatment, which brings a certain burden to the patient's heart or body; (4) The clinical operation is relatively complicated and the operation time is long

Method used

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  • Internal radiotherapy device which can be easily removed from body
  • Internal radiotherapy device which can be easily removed from body
  • Internal radiotherapy device which can be easily removed from body

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Embodiment Construction

[0019] The present invention will be further described below in conjunction with the accompanying drawings.

[0020] an internal radiotherapy device that is easily removed from the body (see figure 1 ), including a medical material tube 1, in which a radioactive source 2 and a spacer 3 are arranged, and the number of the spacer is one more than the radioactive source.

[0021] The inner diameter of the medical material tube 1 is preferably 0.85mm, and any number from 0.3mm to 2mm can be selected, such as 0.3mm, 0.5mm, 0.8mm, 1.2mm, 2mm, etc.

[0022] The length is preferably 60 mm, and any number from 10 mm to 1000 mm can be selected, such as 10 mm, 50 mm, 80 mm, 100 mm, 150 mm, 300 mm, 500 mm, 1000 mm, etc.

[0023] The medical material is preferably nickel-titanium shape memory alloy, and gold, silver, platinum, tantalum, niobium, zirconium, 316L medical stainless steel, 304 medical stainless steel, commercial pure titanium, medical TC4 titanium alloy, Co-Cr-Mo alloy, Co -...

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Abstract

The invention discloses an internal radiotherapy device which can be easily removed from a body, comprising a medical material tube, wherein a radiation source and a spacer are arranged in the medicalmaterial tube, and the number of the spacers is more than one than the radiation source. The invention has the advantages of simple operation and short operation time. Accurate localization of radioactive source in tumor can be realized to avoid the change of radioactive source position caused by organ activity. The invention avoids the shedding or migration of the radioactive source, reduces theside effect and has good curative effect; after treatment, the radioactive source can be conveniently removed from the body without residue, unnecessary irradiation of normal tissues is reduced, andside effects are reduced; the invention can maintain organs intact and has complete functions.

Description

technical field [0001] The invention belongs to the technical field of medical devices, and relates to an internal radiotherapy device that can be easily taken out from the body. Background technique [0002] Malignant tumors have become a common and multiple disease that seriously threatens human health. At present, radiation therapy has become one of the three main means of treating tumors. Radiation therapy mainly uses the different biological response mechanisms of normal tissues and tumor cells to radiation when rays penetrate human tissues to control the growth and proliferation of tumor cells. Compared with surgical treatment and chemotherapy, radiotherapy can preserve the function of the treated organ, has less side effects, and can effectively guarantee the quality of life of patients after recovery. [0003] Implanting radioactive particles into tumors for internal radiation therapy, also known as brachytherapy, is to implant a certain amount of radioactive sourc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61N5/10
CPCA61N5/1007
Inventor 阎尔坤白红升白鹏飞朱辉李佳苗永涛
Owner 天津赛德医药研究院有限公司
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