Pen type inner irradiation particle implanter

Abstract

The invention discloses a pen type inner irradiation particle implanter. The pen type inner irradiation particle implanter comprises a handle, a particle magazine, a mobile device ensuring that the particle magazine moves along the axial direction of a pushing rod duct according to a certain distance and a paracentetic needle depth positioning device which is used to control the depth of a paracentetic needle in human body which is used in the operation. The particle magazine is provided with a through pushing rod pore, the top of the particle magazine is provided with a particle cartridge magazine, the front wall of the particle magazine is provided with a paracentetic needle universal interface and the back wall of the particle magazine is provided with the pushing rod duct. The bottom of the particle magazine is provided with a blood return releasing hole, a space which is a blood return collecting-releasing slot is arranged below the particle magazine and the blood return releasing hole is communicated with the blood return collecting-releasing slot. The pen type inner irradiation particle implanter is characterized in that the structure is simple, the weight is light and the magazine can be accurately moved; the particle implanter is suitable for all specifications of paracentetic needles of all manufacturers, the source blockage phenomenon and the reuse of the particle magazine are avoided, the cross-infection of the patient can be prevented; and the particle implanter is convenient in use. The pen type inner irradiation particle implanter is more suitable for clinical implantation for curing tumor.

Description

technical field [0001] The invention relates to a medical instrument for radioactive particle implantation treatment between tumor tissues, in particular to a pen-type internal radiotherapy particle implanter. Background technique [0002] Interstitial radioactive seed implantation therapy, also known as internal radiotherapy seed implantation therapy, is to implant radioactive particles into the tumor or around the tumor, and use the radiation emitted by the particle source core to kill cancer cells and achieve the purpose of treating and alleviating the disease. Interstitial radioactive seed implantation therapy has been used in the treatment of various solid tumors, such as prostate cancer, breast cancer, liver cancer, brain tumor and ovarian cancer, and has achieved the same therapeutic effect as surgery and external radiation therapy, with less trauma , less side effects and low recurrence rate. Good therapeutic effects have been achieved in clinical practice, and have...

AI Technical Summary

Problems solved by technology

Good therapeutic effects have been achieved in clinical practice, and have gradually been accepted and recognized by doctors and patients. However, there are some shortcomings in the implantation equipment used for internal radiotherapy seed implantation, which brings some inconvenience to clinical treatment and affects the quality of internal radiotherapy. Clinical promotion of particle implantation therapy

[0003] Publication number is CN1846804A, and its disclosure date is that the Chinese patent application on October 18, 2006 discloses a kind of " internal radiotherapy particle implantation gun ", although solved the problem of radioactive particle implantation, there is following deficiency: (1 ) The particle magazine of the internal radiotherapy particle implantation gun is reused, which is prone to cross-infection; (2) When implanting particles in the tumor, first use the push rod to implant the radiation therapy particles into the tumor through the puncture needle, and then pull out the push rod At this time, the blood in the tumor will flow back into the particle magazine and the particle magazine through the puncture needle, and coagulation will occur, and the subsequent radiotherapy particles will appear "stuck source" and cannot be implanted

[0004] The publication number is CN101219253A, and its publication date is that the Chinese patent on July 16, 2008 discloses a radioactive seed source implanter, which can solve the problem of repeated use of particle magazines and the phenomenon of "stuck source" when applied clinically , has promoted the application of internal radiotherapy particle implantation treatment technology, but also has the following disadvantages: (1) the puncture needle buckle cannot be applied to puncture needles of all manufacturers and specifications; (2) the operation of implanting particles in the tumor , the movement distance of the particle magazine is inaccurate; (3) 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, and occasionally "stuck source" Phenomenon

[0005] The announcement number is 201807076U, and its announcement date is April 27, 2011. The Chinese utility model patent discloses a slide bar type radioactive particle implant gun. The implant gun is provided with a positioning rack for adjusting the advancement and retreat of the particle magazine. Accurately control the withdrawal of the puncture needle and implant the radioactive particles. The slide bar runs through the particle magazine of the implant gun to support and stabilize the particle magazine. The disadvantages are: (1) It cannot be applied to all manufacturers and specifications. Puncture needle; (2) The implanter is too long, heavy in weight, and prone to fatigue during operation; (3) The particle magazine of the implant gun is reused, which is prone to cross-infection; (4) The operation of implanting particles in the tumor When there is a "card source" phenomenon

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