A non-contact magnetic induction cerebral hemorrhage detection device based on characteristic frequency band

Abstract

The invention discloses a non-contact magnetic induction cerebral hemorrhage detecting device based on a feature band. The non-contact magnetic induction cerebral hemorrhage detecting device based on the feature band comprises a signal generator, an exciting and detecting device, a signal collecting unit and a signal processing unit. The signal generator is used for outputting sine wave excitation signals which are operated in a scanning mode, and the frequency of the sine wave excitation signals is in linear variation. The exciting and detecting device is arranged on the periphery of the head to be detected and comprises an exciting coil and a detecting coil. The signal collecting unit is used for collecting detection signals and reference signals output by the exciting and detecting device. The signal processing unit is used for processing the detection signals and the reference signals received by the signal collecting unit, and the signal processing unit comprises a feature band determining unit, a feedback unit, a phase difference calculating unit and a B-F image drawing unit. According to the non-contact magnetic induction cerebral hemorrhage detecting device based on the feature band, firstly, the feature band is determined, then the working frequency range of a detecting system is set to be equal to the feature band, the sensitivity and the stability of the detection are greatly improved, and conditions are provided for subsequent analysis and processing.

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 cerebral hemorrhage detection device based on characteristic frequency bands. Background technique [0002] As a type of stroke, cerebral hemorrhage has the characteristics of high morbidity, high disability rate, high mortality rate and heavy economic burden. Research by the World Health Organization shows that the incidence of stroke in my country is increasing at an annual rate of about 9%, and it has become the number one cause of death. About 30% of the patients died, and 70% of the survivors had disabilities such as hemiplegia and aphasia. Prevention and control The situation is dire. Cerebral hemorrhage generally causes a variety of secondary lesions, such as: cerebral edema, increased intracranial pressure, cerebral herniation, etc., among which cerebral edema and cerebral herniation lead to intracranial hype...

AI Technical Summary

Problems solved by technology

[0006] The purpose of the embodiment of the present invention is to provide a non-contact magnetic induction cerebral hemorrhage detection device based on the characteristic frequency band, aiming to solve the problems of low sensitivity and poor stability of the existing magnetic induction measurement device

Images