Cerebral hemorrhage and cerebral ischemia distinguishing system based on non-contact magnetic induction

Abstract

The invention discloses a cerebral hemorrhage and cerebral ischemia distinguishing system based on non-contact magnetic induction. The cerebral hemorrhage and cerebral ischemia distinguishing system comprises a signal generator, a power amplifier, a transmitting coil, a receiving coil, a data collection card and a computer. The transmitting coil and the receiving coil are square, are the same in size and are parallel. A detected head is placed in the space of the middle of the two coils. Signals output by the receiving coil and reference signals output by the signal generator are connected to the two input ends of the data collection card. The electric conductivity of the detected head can be reflected by measuring the phase difference between the signals at the two input ends of the data collection card. Due to the fact that the direction of integrated brain electric conductivity changes caused by cerebral hemorrhage is opposite to the direction of integrated brain electric conductivity changes caused by cerebral ischemia, the cerebral hemorrhage and cerebral ischemia distinguishing system achieves non-contact novel magnetic induction detection, and is free of wounds, easy and convenient to use and capable of achieving rapid measurement.

Description

technical field [0001] The invention belongs to the technical field of biomedical medical devices, and in particular relates to a non-contact magnetic induction device for distinguishing cerebral hemorrhage and cerebral ischemia in neurology and surgery. Background technique [0002] The incidence of stroke in my country is constantly rising, presenting five characteristics of high incidence, high disability rate, high mortality rate, high recurrence rate, and high economic burden, and has become the first cause of death among residents. As of December 2014, in the past five years, the annual growth rate of the standardized incidence rate of cerebral apoplexy in the whole population of the whole country was 13.19%, and the incidence rate of high-risk groups was 14.01%. stroke. According to statistics, there are about 2 million new strokes in my country every year, and nearly half of them die. Among the surviving stroke patients, about 3 / 4 have lost their ability to work to ...

AI Technical Summary

Problems solved by technology

But it takes a lot of time from when a patient develops stroke symptoms to being transported to the hospital and doing a CT or MRI examination

For cerebral ischemia, the best time for thrombolytic therapy is 4.5 hours after the onset of symptoms, if it exceeds 4.5 hours, the effect is not good and there is a risk of bleeding complications

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