Miniature optical fiber sensing system capable of monitoring brain pressure and brain temperature simultaneously

Abstract

The invention provides a miniature optical fiber sensing system capable of monitoring the brain pressure and the brain temperature simultaneously. An optical fiber sensor is placed in the brain. The optical sensor is connected with one end of an optical fiber connector and the other end of the optical fiber connector is connected with one end of a 1*3 coupler. The other two ends of the coupler are connected with the input ends of two photoelectric detectors respectively. The fourth end of the coupler is connected with a white light source. The output ends of the two photoelectric detectors are connected with the input end of a pressure signal extraction module and a temperature signal extraction module respectively. The output end of the pressure signal extraction module is connected with the input end of a pressure signal amplification module. The temperature signal extraction module is connected with the input end of a temperature signal amplification module. The output end of the pressure signal amplification module and the output end of the temperature signal amplification module are simultaneously connected with the input end of a pressure and temperature signal analysis module. The output end of the pressure and temperature signal analysis module is connected with a display module. By the adoption of the miniature optical fiber sensing system capable of monitoring the brain pressure and the brain temperature simultaneously, the brain pressure and the brain temperature can be simultaneously monitored dynamically and accurately.

Description

technical field [0001] The invention belongs to the technical field of medical devices, and in particular relates to a miniature optical fiber sensing system for simultaneous monitoring of intracranial pressure and temperature. Background technique [0002] At present, the intracranial pressure monitoring used in the market is mainly divided into two types: invasive and non-invasive. The invasive mainly includes: lumbar puncture and intraparenchymal monitoring. Subarachnoid space monitoring, neuroendoscopic monitoring, etc. Noninvasive intracranial pressure monitoring mainly includes: clinical manifestations and imaging detection, retinal venous pressure or arterial pressure method, tympanic membrane displacement method, bregma manometry, noninvasive EEG impedance monitoring, near-infrared spectroscopy technology, etc. Lumbar puncture is the most primitive method, and its disadvantage is that complications such as nerve injury, bleeding, and infection may occur, and there i...

AI Technical Summary

Problems solved by technology

At present, there is no fiber optic sensor for human brain pressure and temperature in China. The fiber optic intracranial pressure monitors of the above two are basically used in major hospitals, and the product is expensive, and the use time is short, which is unbearable for patients.

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