Protective sleeve of brachytherapy source particle bin

Abstract

The invention provides a protective sleeve of a brachytherapy source particle bin. The protective sleeve comprises a cover body assembly and a base, wherein the cover body assembly is in cooperation connection with the base; the cover body assembly comprises a cover body, a pressing rod, an elastic device and a pressing block; the pressing rod penetrates through the top of the cover body, and is connected with the cover body through threads; the elastic device is arranged at the tail end of the pressing rod; the pressing block is arranged at one end away from the pressing rod, of the elastic device; a hollow cavity is formed in the base, and is used for accommodating the particle bin; the pressing rod can move relative to the cover body through the threads, and can actuate the elastic device to generate elastic force; and the elastic force is used for enabling the pressing block to be in contact with one end of the particle bin. According to the protective sleeve of the brachytherapy source particle bin provided by the invention, omnidirectional protection of the brachytherapy source particle bin can be completed, and high-efficiency and safe transportation and movement are performed; brachytherapy sources in the brachytherapy source particle bin are effectively protected from being extruded and deformed, array malposition cannot generate, and environmental pollution caused byoutward leakage of radioactive substances is avoided.

Description

technical field [0001] The invention belongs to the field of radioactive substances, and in particular relates to a protective cover for sealing a seed source particle chamber. Background technique [0002] In clinical practice, the sealed seed source particle chamber is often used in conjunction with the implanter to complete the implantation of the sealed seed source. During the transportation of the sealed seed source particle bin in the prior art, due to insufficient protection, the push rod of the sealed seed source particle bin is often squeezed by external force, and the sealed seed source is often deformed and misaligned due to the extrusion of the push rod. Phenomenon, when the sealed seed source particle chamber is used in conjunction with the implanter for implantation, due to the deformation and misalignment of the sealed seed source, "source jamming" will often occur, which will greatly affect the effect of implantation, and even cause implantation failure , se...

AI Technical Summary

Problems solved by technology

During the transportation of the sealed seed source particle bin in the prior art, due to insufficient protection, the push rod of the sealed seed source particle bin is often squeezed by external force, and the sealed seed source is often deformed and misaligned due to the extrusion of the push rod. Phenomenon, when the sealed seed source particle chamber is used together with the implanter for implantation, due to the deformation and misalignment of the sealed seed source, "source jamming" will often occur, which will greatly affect the effect of implantation, and even cause implantation failure , seriously delaying the treatment process, and causing a large number of sealed seed sources to be damaged and wasted; because the I-125 contained in the sealed seed source is radioactive, when the titanium alloy cladding is crushed and damaged, the contained I-125 radioactive substances It will leak out, causing radioactive pollution to the human body and the surrounding environment

[0003] In addition, the return spring in the particle chamber of the sealed seed source that is in contact with the push rod keeps the push rod in contact with the sealed seed source through elastic force, so that the sealed seed sources are closely arranged, but the elastic force of the return spring in the particle chamber of the sealed seed source is relatively small. Avoid extrusion and deformation of the sealed seed source under normal conditions; therefore, during transportation, due to irregular operators, throwing, throwing, or even violent sorting, etc., the inertia force of the push rod in the sealed seed source particle bin is greater than When the elastic force of the return spring, the push rod is separated from the sealed seed source, the sealed seed source will be loose and cause misalignment, or even fall out of the sealed seed source particle bin

[0004] Therefore, when the existing sealed seed source particle warehouse is moved and transported, there are poor protection, and the sealed seed source particles are prone to extrusion, deformation, damage, and misalignment, resulting in poor implantation effect, and even the sealed seed source particles are lost from the sealed seed source. Problems such as falling out of the source particle bin

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