Cerebral edema simulator

Abstract

The invention discloses a cerebral edema simulator. The upper end of a support frame is provided with a lower shell on which an injector is arranged; the upper end of the lower shell is provided with a spherical shell formed by an upper shell; the top of the upper shell is provided with a head cover, the upper part is provided with an exciting coil, and the lower part is provided with a detectioncoil; the injector is communicated with a skin expander arranged in the spherical shell by a communication pipe, sodium chloride solution with the same electrical conductivity as normal brain tissuesis filled in the spherical shell, and sodium chloride solution with the same electrical conductivity as cerebral edema tissues is injected in the skin expander. The skin expander forms irregular cerebral edema zones in different positions in a skull model to truly stimulate the existing situation of cerebral edema in skull, the severity of cerebral edema can be stimulated by regulating the concentration (namely electrical conductivity) of sodium chloride solution in the skin expander, and the geometric size of cerebral edema can be stimulated by regulating the volume of sodium chloride solution in the skin expander. The invention can be applied to the research of a cerebral edema monitoring technology.

Description

technical field [0001] The invention belongs to the technical field of biomedical medical devices, and in particular relates to a brain edema simulation device. Background technique [0002] Intracerebral surgical diseases such as various craniocerebral trauma, brain tumor resection, cerebral ischemia, brain tumor, encephalitis, and high altitude cerebral edema have entered the top three common fatal lesions in terms of morbidity and mortality. These intracerebral surgical diseases are accompanied by symptoms of cerebral edema. Monitoring the severity of cerebral edema is an important basis for doctors to understand the true condition of the disease and guide treatment. [0003] At present, there are mainly two routine detection methods for cerebral edema patients at home and abroad. One is to diagnose with CT, MRI and other equipment. This method is not only expensive, but also not suitable for patients who are critically ill and cannot be moved repeatedly. The other is ma...

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Problems solved by technology

[0005] At present, in the research of brain edema monitoring technology, the plexiglass ball model and agar block are used to simulate brain edema. The production of agar block for simulating brain edema is not convenient to adjust the geometric size, the change of electrical conductivity and the formation of irregular shapes in the experiment.

Scholars in Mexico and the United States used the experimental model of double-layer plexiglass spheres to simulate brain edema, which realized the convenient adjustment of the volume of brain edema in the experiment, but it could not simulate the irregularity of the actual region of brain edema and the formation of arbitrary positions.

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