Radioactive particle implanting device

Abstract

The invention discloses a radioactive particle implanting device which comprises a base. Two sliding rods penetrate the upper portion of the base, the front ends of the sliding rods are fixedly connected with the upper portion of a skewback while the rear ends of the same are fixedly connected with the upper portion of a support, a Ruhr interface and a syringe needle are sequentially connected at a position of a front through hole of the base, a gun pipe is connected at a position of a rear through hole of the base, and a pushing rod is slidably connected in a duct, a rear through hole, a particle passage and a front through hole inside the gun pipe; a sterile injection water injecting pipe is arranged on the rear portion of a clip groove in the base, and a conical pipe is arranged at the front end of the Ruhr interface. The radioactive particle implanting device is simple in structure, easy to process and assemble and convenient to operate; a sliding rail sliding device is adopted, so that accurate positioning can be realized, and stability is high; by arranging digital scales on the surface of the gun tube, positioning distance is visualized; by arranging digital scales on the surface of a piston of a clip, number of remaining seed sources is visualized. By arranging the conical tube, source blocking caused by a gap at a joint of the syringe needle and the Ruhr interface can be prevented.

Description

technical field [0001] The invention relates to a radioactive particle implantation device, which belongs to the field of medical instruments. Background technique [0002] Cancer interstitial radiation therapy, also known as brachytherapy, refers to implanting a sealed seed source containing radioactive substances into the tumor or nearby tissue infiltrated by cancer cells through an implanter under the guidance of imaging. Use the direct effect of radiation emitted by radioactive substances or the indirect effect of free radicals to destroy DNA double strands. When tumor cells divide, because the integrity of their DNA is damaged, they cannot undergo cell division and die, thereby achieving therapeutic and therapeutic effects. The purpose of alleviating tumors. This treatment technology is applicable not only for the treatment of prostate cancer or inoperable tumors, but also for the implantation of residual lesions after primary tumor resection, such as the treatment of ...

AI Technical Summary

Problems solved by technology

However, there are still some deficiencies in implanted devices used for interstitial radiotherapy of cancer, which brings some inconvenience to clinical treatment and delays the clinical promotion of interstitial radiotherapy to a certain extent.

[0003] The publication number is CN 101219253A Chinese patent (disclosure date: July 16, 2008) discloses a radioactive seed source implanter, which solves the problem of reusing the heavy particle magazine of the previous implanter and the "stuck" problem when it is applied clinically. "source" phenomenon, which promotes the application of internal radiotherapy particle implantation treatment technology, but there are also the following shortcomings: the puncture needle buckle cannot be applied to puncture needles of all manufacturers and specifications; The movement distance of the magazine is not accurate; the anticoagulant input hole set in the groove at the bottom of the particle magazine is easy to flow out after the anticoagulant is injected, which will cause pollution to the operating environment

However, this device is positioned by the rolling of the gear in the gear groove. The structure of the rolling part of the gear is complicated, and mechanical failures are prone to occur, and the machining of the tooth groove is more complicated. The entire implanter is relatively heavy, and the operation is prone to fatigue.

[0005] The radioactive particle implantation gun disclosed in the Chinese invention patent with the notification number CN 204502093U (announcement date: July 29, 2015) basically solves the above-mentioned various shortcomings. The device uses slide rails to make the positioning easier. Accurate, but the device is equipped with a disk with a circle of particle holes in the particle chamber. It is necessary to press the pressure rod on the disk hard, and the disk rotates a particle hole, which adds an operation when implanting particles. step, and the device is provided with a hand rocker at the front end of the gun body, the hand rocker is hand-operated, and the slide rail rotates forward, thereby driving the push rod 4 forward. It can be seen that the slide rail of the positioning device is carried out by rotation, and the implantation The operation of the pressure rod and the hand lever during the process increases the complexity of the implantation

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