Fixing device for controlling respiration in tumor radiotherapy

Abstract

The invention discloses a fixing device for controlling respiration in tumor radiotherapy, and belongs to the technical field of radiotherapy auxiliary article equipment. The fixing device for controlling respiration in tumor radiotherapy comprises a supporting base, a supporting vertical column and a supporting horizontal rod, wherein the supporting vertical column is fixedly connected to the topof the supporting base; the supporting horizontal rod is in sliding connection to the side wall of the supporting vertical column; a first telescopic rod is fixedly connected between the supporting horizontal rod and the supporting base; and a fixing disk and a moving disk which are connected through the second telescopic rod are arranged on the supporting horizontal rod. According to the fixingdevice for controlling respiration in tumor radiotherapy disclosed by the invention, traction rods are driven by a traction disk to rotate along a fixing sleeve; when the traction rods on two sides relatively rotate, the constricting plates on the two sides are driven to mutually close, so that the two sides of the body of a patient are clamped; and besides, chest pressing side rods on two sides of a chest pressure plate are used for pressing the chest cavity position of the patient, so that the respiration of the patient is controlled, and the adverse effects brought to the radiotherapy effects because of the existence of rising and falling of respiration are reduced.

Description

technical field [0001] The invention relates to the technical field of radiation therapy auxiliary equipment, in particular to a fixing device for controlling breathing in tumor radiation therapy. Background technique [0002] The basic requirement of precise tumor radiotherapy technology is to achieve "three highs and one low" in the final curative effect of tumors, that is, high precision, high dose, high curative effect and low damage. However, the respiratory movement of the lung organs leads to synchronous respiratory movement of the lung tumor, which will constantly shift relative to the static position of the irradiation point, and the tumor location may exceed the irradiation area formulated in the radiotherapy plan. In order to overcome the influence of respiratory movement on tumor radiotherapy, breathing control technology is often used in radiotherapy to improve the cure rate of dynamic tumors and reduce the complications of surrounding normal tissues. The devel...

AI Technical Summary

Problems solved by technology

[0003] When performing radiotherapy on patients clinically, it is necessary to use a body position fixation device to fix various parts of the patient's body to prevent the irradiated parts from moving during irradiation, thereby reducing the radiation dose to normal tissues. Therefore, the choice of radiotherapy position is very critical. The method usually has a prone position or a supine position. Most of the existing radiotherapy positions are high-energy ray irradiation in the supine position. In the supine position, due to the existence of breathing fluctuations, the irradiated position is likely to be shifted. Devices for immobilizing the patient's position in radioactive mass

Images