Recyclable conformal radioactive particle cabin

Abstract

The invention discloses a recyclable conformal radioactive particle cabin which comprises a fixing plate, a guide column and a plurality of moveable partitioning plates, wherein the guide column is longitudinally arranged at the lower end of the fixing plate; the guide column is made of a flexible material; the moveable partitioning plates are overlapped with one another up and down and are arranged on the guide column in a sliding sleeve manner. According to a preoperative plan, under the image guide, a puncture needle is penetrated into a tumor; the tip position is a tail end particle position of the preoperative plan; a needle core is pulled out, the recyclable conformal radioactive particle cabin is placed into a puncture needle tube and pushed to a particle distribution source position specified in the preoperative plan. As the guide column is made of the flexible material, the guide column can have conformal deformation along with change of the tumor, and the recyclable conformal radioactive particle cabin can be taken out after the tumor is eliminated, radioactive particles can be taken out, the consequence that the distribution sources of the radioactive particles in the tumor can be accumulated with one another to generate high-dosage areas along with reduction of the tumor size and radioactive damage of normal tissue around is caused be effectively prevented, and meanwhile particle migration and complication such as lumen obstruction and thromboembolism can be prevented.

Description

technical field [0001] The invention relates to the field of medical devices, in particular to a recyclable conformable radioactive particle cabin. Background technique [0002] In recent years, with the development of minimally invasive technology, implantation of radioactive particles (such as 125I) has gradually attracted attention due to its advantages of small trauma, simple operation, and good effect. It has stepped into a new field in the treatment of malignant tumors and has great competitive advantages compared with existing treatment methods. However, radioactive seeds implanted into the tumor may have the following disadvantages: 1. The source of radioactive particles in the tumor will gather with each other as the tumor shrinks and produce a high-dose area, causing radiation damage to surrounding normal tissues. 2. The particles implanted in the tumor are not easy to remove, and patients generally carry them for life. 3. During and after radioactive seed implan...

AI Technical Summary

Problems solved by technology

However, radioactive seeds implanted into the tumor may have the following disadvantages: 1. The source of radioactive particles in the tumor will gather with each other as the tumor shrinks and produce a high-dose area, causing radiation damage to surrounding normal tissues

2. It is not easy to take out the particles implanted in the tumor, and patients generally carry them for life

3. During and after radioactive seed implantation, migration may occur, the tumor may fall off after regression, and even lead to complications such as lumen obstruction and vascular embolism, or the existence of radiation energy may easily cause damage to other normal tissues or organs. damage

4. Since the radioactive particles cannot be taken out after being implanted into the tumor, the dose distribution covering the tumor cannot be adjusted according to the change in the target volume of the tumor

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