Electric rack-and-pinion-type prostate particle implanter

Abstract

The invention discloses an electric rack-and-pinion-type prostate particle implanter, and relates to the technical field of medical instruments. The electric rack-and-pinion-type prostate particle implanter comprises a base plate, an external pin driver module, an internal pin driver module, an external pin, an internal pin, a limit block, and a radioactive particle supply module. The electric rack-and-pinion-type prostate particle implanter is characterized in that the base plate is fixedly connected with an external pin driving stepper motor and an internal pin driving stepper motor; the external pin is fixedly connected with an external pin clamping sleeve; the internal pin is connected with the internal pin driver module via a friction pair; the internal pin is a solid needle; the external pin is a hallow needle; and the internal pin is capable of performing linear sliding along the axial direction in the external pin. According to the electric rack-and-pinion-type prostate particle implanter, friction wheel driving is adopted for realizing internal pin implantation; and rack-and-pinion transmission is adopted for realizing feeding of the external pin. Compared with existing manual particle implantation mechanisms, the electric rack-and-pinion-type prostate particle implanter is capable of realizing continuous particle implantation process, so that operation efficiency is improved so as to have operation time shortened. The electric rack-and-pinion-type prostate particle implanter is simple in whole-apparatus structure that locking is realized by threaded connection, sothat the electric rack-and-pinion-type prostate particle implanter is convenient to assemble and disassemble; and moreover, the electric rack-and-pinion-type prostate particle implanter is compact inoverall structure and light in weight.

Description

technical field [0001] The invention belongs to the technical field of medical devices, in particular to an electric rack and pinion prostate particle implanter. Background technique [0002] Proximate radioactive seed implantation provides a new and effective way for the treatment of prostate cancer, and has been widely used due to its good therapeutic effect, uniform dose distribution in target tissue, and little damage to normal tissue. At present, in the puncture implantation surgery guided by ultrasound, CT, and MRI, doctors mostly use manual implantation. [0003] However, in the process of manual implantation, the technical level of doctors is strictly required, the therapeutic effect depends on the doctor's surgical experience, and the quality of the operation is not stable. In addition, the workload of particle implantation surgery is heavy and the operation time is long, which causes fatigue of doctors and affects the accuracy of particle implantation. Contents ...

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Problems solved by technology

[0003] However, in the process of manual implantation, the technical level of doctors is strictly required, the treatment effect depends on the doctor's surgical experience, and the quality of surgery is

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