Simulation device for human body pleuroperitoneal cavity movement caused by breathing

Abstract

The invention discloses a simulation device for human body pleuroperitoneal cavity movement caused by breathing. The simulation device comprises a workbench, a base, a support, a drive motor, lead screw, a slide block, a push plate, a needle cylinder body, a needle cylinder piston and a push rod, wherein the base and the support are sequentially arranged on the workbench, the drive motor is arranged on the base, the lead screw is connected with the output end of the drive motor through a coupling, the slide block is arranged on the lead screw and can move leftwards and rightwards along with rotation of the lead screw, and the push plate is perpendicularly arranged at the top of the slide block; the needle cylinder body is arranged on the support, a needle cylinder piston is arranged in the needle cylinder body, and the push rod is connected with the exterior of the needle cylinder piston; the push rod is fixedly connected with the push plate, meanwhile a needle nozzle of the needle cylinder body is provided with a balloon for in-vivo simulation, and the outer side of the balloon for in-vivo simulation is sleeved with balloon for body surface simulation. The simulation device has the advantages that relevance three-dimensional movement of the chest wall body surface and in-vivo tumor generated when a human body breathes is represented, an accurate movement model is provided for breathing tracking and positioning research of tumor radiotherapy, and the accurate positioning function of breathing motion compensation on the image-guided radiation therapy.

Description

technical field [0001] The invention belongs to the field of auxiliary simulation devices for medical equipment, and in particular relates to a human body chest and abdominal cavity motion simulation device caused by breathing. Background technique [0002] Tumor radiation therapy is a local treatment method for tumors treated with radiation. About 70% of cancer patients need radiation therapy during the treatment of cancer, and about 40% of cancers can be cured with radiation therapy. The role and status of radiotherapy in tumor treatment has become increasingly prominent, and it has become one of the main means of treating malignant tumors. In recent years, image-guided precision radiotherapy technology has become the development trend of tumor radiotherapy. The images of the target area are obtained through CT, X-ray, etc. and accurately registered, which greatly improves the accuracy of positioning and dose delivery in radiotherapy. [0003] However, under the influence...

AI Technical Summary

Problems solved by technology

However, due to the complex internal structure of the high-fidelity human simulator, it is inconvenient to directly obtain the movement trajectory signal of the internal tumor

Some simulators driven by linear slides can only simulate the two-dimensional movement of the chest wall, while others can simulate the three-dimensional movement of the chest wall but cannot realize the correlation between chest wall movement and tumor movement

None of the existing human breathing simulation devices can accurately simulate the three-dimensional correlation movement between the surface of the thoracic and abdominal cavity and the tumor in the body

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