Single coil and characteristic frequency-based non-contact acute cerebral ischemia detection device

Abstract

The invention provides a single coil and characteristic frequency-based non-contact acute cerebral ischemia detection device. The single coil and characteristic frequency-based non-contact acute cerebral ischemia detection device includes a vector signal source which outputs sine wave excitation signals in a certain frequency range, a signal separation module which separates two paths of signals outputted by the vector signal source and separates excitation signals and detection reflected signals, and extracts out the detection reflected signals, a detection module which is a single annular coil, a signal acquisition module which acquires reflected signals outputted by the detection device and reference signals outputted by the vector signal source, and a signal processing module which processes detection signals and reference signals which are received by the signal acquisition module; a detected skull is arranged at the axial center of the single annular coil. The single coil and characteristic frequency-based non-contact acute cerebral ischemia detection device of the invention has high detection sensitivity and can distinguish different ischemia levels. An experiment carried out by using the detection device has high repeatability.

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 acute cerebral ischemia detection device based on a single coil and characteristic frequency. Background technique [0002] Cerebral ischemia refers to a brain pathological state in which tissue ischemia and hypoxia are caused by insufficient blood supply to the brain due to sudden vascular obstruction or embolism. Cerebral ischemia is the most important type of stroke, accounting for about 50%-80% of stroke. According to the statistics of the World Health Organization, 1 out of 6 people in the world may suffer from stroke, 1 person dies from stroke every 6 seconds, and 1 person becomes permanently disabled due to stroke every 6 seconds. In my country, stroke has become the number one cause of death among residents and the number one killer of people's life and health. More seriously, there are nearly 100 million p...

AI Technical Summary

Problems solved by technology

[0005] Aiming at the problems of complex and expensive acute cerebral ischemia detection in the prior art, a simple and effective non-contact acute cerebral ischemia detection device based on single coil and characteristic frequency is proposed, which improves the sensitivity and stability of the detection system

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