Implantable wireless passive intracranial pressure monitoring system

Abstract

The invention discloses an implantable wireless passive intracranial pressure monitoring system. The system comprises an intracranial pressure monitor and an in vitro detector, the intracranial pressure monitor is implanted into a cranium and comprises a shell, a pressure sensor and a circuit module, the pressure sensor is a piezoresistive pressure sensor, thin high-elastic layers are arranged atthe upper end and the lower end of the shell, the circuit module comprises a wireless charging module, a signal transmission module and a signal processing module, the pressure sensor is connected with the circuit module through a long wire, and the intracranial pressure monitor is connected with the in vitro detector through a wireless signal. The system is characterized in that the work time ofmonitoring equipment can be greatly prolonged, the risk that a patient is infected when using the system is reduced, the cost of the patient on the medical services is reduced, the accuracy and convenience of clinical doctors on pathogenic condition judgement is improved, the work quality of the neurosurgery department is improved, and the clinical academic research level is improved.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to an implantable wireless passive intracranial pressure monitoring system. Background technique [0002] Intracranial pressure, that is, the pressure of the cerebrospinal fluid in the cranial cavity, is normally 100-150 mm of water column, 10-15 mm of mercury column, because the cerebrospinal fluid in the subarachnoid space and the brain pool is between the wall of the cranial cavity and the brain tissue, and in the The cerebral ventricle and the subarachnoid space in the spinal cavity are connected, so the hydrostatic pressure of the cerebrospinal fluid can represent the intracranial pressure. Usually, when the intracranial pressure continues to exceed 180 mm of water column, it lasts for more than 5 minutes, and it is clinically called intracranial pressure. increased. Increased intracranial pressure can lead to a series of physiological dysfunction and pathological chan...

AI Technical Summary

Problems solved by technology

The problem of this invention is that 1. It is necessary to paste the external patch reader outside the cranium, and the patient can easily cause the external patch reader to fall off when the patient turns over the body, causing the device to fail to work normally; 2. Intracranial pressure The surface of the sensor is uneven, and due to the inconsistent distribution of intracranial pressure, measurement errors are prone to occur, which is not allowed for intracranial pressure detection, which requires high precision measurements

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