Vibration feeding-type radioactive seeds automatic filling equipment

Abstract

The invention is vibration feeding-type radioactive seeds automatic filling equipment, which comprises: a box part, a seed sorting part, and a cartridge feeding part; The seed sorting part includes acircumferential electromagnetic vibrator, a vibrating plate, and a vibrating plate baffle plate; the cartridge feeding part includes a cartridge tray connection block and a cartridge tray; the vibrating plate is installed on a vibration plate connection plate of the circumferential electromagnetic vibrator, the cartridge tray connection block is fixedly installed at the outlet of the vibrating plate, the feed port of the cartridge tray connection block is aligned with the feed port of the vibrating plate, a vibrating plate material channel is provided on the inner wall of the side of the vibrating plate, the end section of the vibrating plate material channel can only pass one radioactive seed, the cartridge is inserted in the cartridge tray, the cartridge tray is inserted in the cartridgetray connection block, and the upper surface of the cartridge tray connection block is provided with a radioactive seed passage that allows only one seed to pass through. The equipment can improve the filling efficiency of radioactive seeds and reduce the operator's exposure to radioactive seeds.

Description

technical field [0001] The invention relates to medical clinical and medical instruments and equipment, in particular to an auxiliary device for permanently implanting iodine-125 seeds into a human body for radiation treatment of tumors, which can realize automatic loading of iodine-125 seeds magazines. Background technique [0002] Radiation therapy is one of the important means of medical clinical treatment of tumors. It has a history of more than 100 years. With the rapid development of precision treatment technology, the permanent implantation of seeds as a method of brachytherapy between tissues has been used in clinical practice. It has been widely used in the world and has become an effective means of clinical precision treatment of malignant tumors. Seed is the source that absorbs the radionuclide liquid on the silver rod or silver wire, and puts it into the sealed titanium tube. During clinical treatment, the seed is loaded into the bullet of the implanted gun and d...

AI Technical Summary

Problems solved by technology

The pneumatic method requires a stable gas source and the required gas is a clean inert gas to blow the particles into the guide groove of the particle plate, and the radioactive particles can enter the hole in the particle plate under the action of the gas pressure The axis moves into and out of the particle tube. The structure of the radioactive seed filling equipment designed with these two orientation methods is complex, the filling cost is high, and the filling equipment cannot be miniaturized.

[0004] 2. The structure of the automatic loading of radioactive seeds is complicated: to realize the automatic loading of radioactive seeds, it is first necessary to realize the precise docking of the magazine clip and the orientation mechanism. Realize positioning and precise positioning of the clip, the structural design of the feed part of the clip is too complicated

Secondly, it is necessary to automatically load the particles into the magazine. The current method is mechanical. The push rod is used to push the particles into the magazine. The structure is relatively complicated, and the particles of different structural sizes also need to use devices with corresponding structural sizes. filling

[0005] 3. The loading efficiency of radioactive seeds is low: the size of commonly used iodine-125 (125I) seeds is: length 4.5mm, diameter 0.8mm

In the filling equipment that adopts pneumatic method for grain orientation, the orientation of the particles is to blow the particles into the guide groove on the particle plate through the circular arc plate with the porous air pipe, and the particles that are not blown into the guide groove return to the multi-hole through the inclined plate. The vicinity of the air hole tube is blown into the guide groove on the particle board again. These two orientation methods are random and the filling efficiency is low.

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