3D automatic scanning water tank

Abstract

The invention relates to a 3D automatic scanning water tank which comprises a water tank body, a motor, a screw mechanism and a scanning probe. The screw mechanism comprises guide rails X, Y and Z, the guide rail X is fixed on the tank body horizontally, the guide rail Z is placed vertically and connected to the guide rail X via a first slide block, the guide rail Y is horizontal, and vertical to the guide rail Z, a second slide block is fixed in one end of the guide rail Z, the guide rail Z is connected with the guide rail Y via the second slide block, a third slide block is arranged on the guide rail Y, and the scanning probe is fixed in the upper portion of the third slide block; first, second and third precise stepping motors control the first, second and third slide blocks on guide rails of the themselves respectively; and a reference probe is fixed on the scanning water tank. The 3D automatic scanning water tank can scan and measure X rays and electron beams of different models of medical linear accelerators as well as radiation-field dosage distribution parameters of an MM50 cyclotron, an X knife and a 60 Co long-distance therapeutic apparatus rapidly, conveniently and accurately.

Description

technical field [0001] The invention relates to a medical device, in particular to a three-dimensional automatic scanning water tank for radiotherapy. Background technique [0002] Tumor radiation therapy is one of the main methods and means to treat and control tumors. According to the statistics of the World Health Organization, the incidence of tumors is increasing year by year, so hospitals have purchased large-scale medical equipment for tumor radiotherapy. Such as medical linear accelerator, X-knife, etc., these equipment must have specialized professionals to carry out strict quality assurance and quality control, in order to ensure the accurate treatment of patients according to the plan, so as to improve the tumor cure rate and control rate. [0003] In the past, most hospitals used dosimeters and small water tanks for their quality assurance and quality control. The small water tanks are not equipped with motors, and they need to be manually pushed to move the box...

AI Technical Summary

Problems solved by technology

However, after the vertical scanning of this 3D scanning system is completed, it is necessary to remove the single-axis screw mechanism and the vertical adjustment block, then reinstall the horizontal adjustment block and the single-axis screw mechanism, and re-adjust the level. The scanning system is not equipped with a reference scanning probe. If the dose rate fluctuates during the test, the three-dimensional curve drawn will have peak glitches, which will affect the accuracy of the measurement results and may even cause serious consequences.

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