Gamma knife collimator

Abstract

The invention relates to a gamma knife collimator. The gamma knife collimator mainly comprises a frame and a number of aperture blades which are stacked in the frame. The inner sides of a number of aperture blades form a center through hole with variable diameter together. The frame comprises a fixed base plate, a fixed cover plate and a number of connection rods which are used for fixedly connecting the fixed base plate and the fixed cover plate, wherein the fixed base plate and the fixed cover plate are arranged in parallel. The fixed base plate and the fixed cover plate are provided with through holes, wherein a ray runs through the through holes. The aperture blades are fixed between the fixed base plate and the fixed cover plate. Each aperture blade is provided with a rotary shaft fixed near the outer circumference of the fixed base plate, and a transmission shaft which is slidably connected with a driving plate. The rotatably movably connected driving plate and a number of chutes which slidably match the transmission shafts are arranged on the outer side of the fixed cover plate. The driving plate positively and reversely rotates. The chutes match the transmission shafts to form synchronous rotation of a number of aperture blades to adjust the size of the center through hole composed of a number of aperture blades. The intensity and size of the gamma ray are controlled. The gamma knife collimator has the advantages of high control accuracy and easy operation, is provided with a shielding tungsten alloy trap, and solves the problem of complex and inaccurate operation of a professional gamma knife surgery.

Description

technical field [0001] The invention relates to a medical operation equipment, more specifically to a gamma knife collimator. Background technique [0002] At present, most gamma knives used in surgery are complicated to operate, and the control of gamma knife rays is not precise, which leads to inaccurate positioning of the patient's part during surgery and improper control of the intensity of gamma rays, which is not conducive to the operation of the gamma knife. In the surgical operation of the patient's focus, sometimes the improper control of the gamma ray aperture may even cause the failure of the operation, which brings unnecessary pain to the patient, fails to achieve the effect of surgical treatment, and is not conducive to Gamma Knife radiation therapy. [0003] Therefore, it is necessary to develop a Gamma Knife collimator that precisely controls the size of the central through hole. Contents of the invention [0004] The purpose of the present invention is to ...

AI Technical Summary

Problems solved by technology

[0002] At present, most gamma knives used in surgery are complicated to operate, and the control of gamma knife rays is not precise, which leads to inaccurate positioning of the patient's part during surgery and improper control of the intensity of gamma rays, which is not conducive to the operation of the gamma knife. In the surgical operation of the patient's focus, sometimes the improper control of the gamma ray aperture may even cause the failure of the operation, which will bring unnecessary pain to the patient, fail to achieve the effect of surgical treatment, and is not conducive to Gamma Knife radiation therapy

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