System, method and device for measuring neurocranium pressure

Abstract

The embodiment of the invention discloses a system, method and device for measuring neurocranium pressure. The system comprises in-vitro processing equipment and a pressure sensor used for being implanted into the ventricle. The in-vitro processing equipment comprises a wireless transceiver and a signal processor. The wireless transceiver is used for transmitting a wireless exciting signal to the pressure sensor and receiving a wireless detection signal generated by the pressure sensor according to the neurocranium pressure. The signal processor is connected with the wireless transceiver and used for controlling the wireless transceiver to transmit the wireless exciting signal and calculating the neurocranium pressure according to the wireless detection signal received by the wireless transceiver. The pressure sensor comprises an antenna and a piezoelectric sensitive unit. The antenna is connected with the piezoelectric sensitive unit. The antenna is used for allowing the pressure sensor to receive the wireless exciting signal transmitted by the wireless transceiver. The piezoelectric sensitive unit changes the resonant frequency according to the neurocranium pressure. The antenna is also used for transmitting the wireless detection signal according to the resonant frequency. Wireless passive measurement and continuous measurement of the neurocranium pressure are achieved, the pain of a patient is relieved, and the infection risk is reduced.

Description

technical field [0001] The embodiments of the present invention relate to the technical field of measurement, and in particular to a system, method and device for measuring intracranial pressure. Background technique [0002] When atmospheric pressure acts on the large extracranial veins, brain tissue, cerebrospinal fluid, and blood exert pressure on the walls of the cranial cavity, which is intracranial pressure. The measurement of intracranial pressure is very important for patients with hydrocephalus, cerebral edema or craniocerebral injury, and it is an important indicator for neurosurgeons to diagnose. [0003] Intracranial pressure measurement is mainly divided into two categories, non-invasive and invasive measurement methods. The former mainly uses CT or MRI images to judge whether the intracranial pressure has increased, and accurate measurement values ​​cannot be obtained, and this method requires the patient to be brought to a special device, requiring the patien...

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Problems solved by technology

The former mainly uses CT or MRI images to judge whether the intracranial pressure has increased, and accurate measurement values ​​cannot be obtained, and this method requires the patient to be brought to a special device, requiring the patient to be stable, continuous measurement cannot be achieved, and the measurement cost is high; the latter It can also be divided into wired and wireless measurements. In the wired intracranial pressure measurement method, there is a method known as the gold standard for intracranial pressure measurement. Specifically, a catheter is connected (or lumbar puncture) in the ventricle, and then the cerebrospinal fluid is drained. To the pressure transducer, the measured intracranial pressure is obtained. This method is more accurate in measuring the structure and is convenient for zero-point detection, but the patient's activities are restricted and there is a high risk of infection.

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