Circuit system of multi-mode sensor for acquiring intracranial physiological and biochemical information

Abstract

The invention provides a circuit system of a multi-mode sensor for acquiring intracranial physiological and biochemical information. The multi-mode sensor comprises a pressure sensor or a shear force sensor, a temperature sensor, an oxygen partial pressure sensor, a potassium and sodium ion sensor and a flexible electrode. The circuit system comprises a power management module, a resistance detection module, a current detection module, a potential detection module, a nerve electricity detection module, an impedance detection module, a digital processing and communication module and an electrical stimulation module.

Description

technical field [0001] The invention relates to the technical field of physiological signal monitoring, in particular to a circuit system of a multimodal sensor for obtaining intracranial physiological and biochemical information. Background technique [0002] Traumatic traumatic brain injury is a global health problem with extremely high mortality. About 600,000 people in China suffer from traumatic brain trauma every year, of which about 100,000 die, causing direct and indirect economic losses of more than 10 billion yuan. Preliminary statistics from the China Traumatic Brain Trauma Database show that among more than 13,000 inpatients with acute traumatic brain trauma in 47 hospitals in China, the fatality rate of severe traumatic brain trauma is greater than 20%, and the severe disability rate is greater than 50%. Foreign data show that for patients with severe traumatic brain injury with Glasgow Coma Scale (GCS) ≤ 8, the mortality rate is as high as 35% to 45%. [0003]...

AI Technical Summary

Problems solved by technology

[0012] To summarize the above statements, the current monitoring of intracranial physiological indicators mostly uses implantable sensor probes, which bring about problems such as large wound area, susceptibility to infection, and inconvenient wire connection, which significantly limit its clinical application.

At present, there is no highly integrated instrument and method at home and abroad that can monitor multi-modal intracranial cerebral cortex signals simultaneously in real time.

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