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Intracranial pressure measuring method and system

A measurement and pressure technology, applied in diagnostic recording/measurement, medical science, acoustic wave diagnosis, etc., can solve problems such as microbubble rupture and brain safety threats

Active Publication Date: 2006-07-26
MICRO-STAR INTERNATIONAL
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Problems solved by technology

However, when the apparent sub-resonant response is excited by the required high pressure, it is often accompanied by the phenomenon that the microbubbles start to collapse
If this method is used to measure intracranial pressure, microbubble rupture may pose a threat to the safety of the brain

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  • Intracranial pressure measuring method and system
  • Intracranial pressure measuring method and system
  • Intracranial pressure measuring method and system

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Embodiment Construction

[0044] The aforementioned and other technical contents, features and effects of the present invention will be clearly presented in the following detailed description of a preferred embodiment in conjunction with the accompanying drawings.

[0045] like figure 2 As shown, the preferred embodiment of the intracranial pressure measurement system of the present invention is to measure the pressure of an internal area of ​​the skull as the measurement target, and inject contrast agent in the way of general intravenous injection in advance, so that there are many microscopic particles in the blood of this area. bubble. The intracranial pressure measurement system includes an ultrasonic probe 21 , a transmitting module 22 and a receiving module 23 connected to the ultrasonic probe 21 , and a signal processing module 20 connected to the receiving module 23 . The signal processing module 20 further includes a filter unit 24 , a low frequency extraction unit 25 , a resonance frequency...

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Abstract

A method for measuring cranial pressure, which can be used to measure cranial inner area which is injected with contrast-medium and forms micro bubble, comprising following steps: (1) emitting a ultrasonic transmitted signal of broad band to cranial inner area; (2) detecting echo-signal from micro bubble;(3) spectrum analyzing the echo-signal to get low-frequency response near to direct current part, the bandwidth of which is near to transmitted signal; (4) calculating the resonance frequency of micro bubble taking the performance feature of bandwidth and strength of low-frequency response as parameter; (5) calculating out the size of micro bubble according to the resonance frequency and cooperating the property of contrast-medium; (6) calculating cranial pressure.

Description

technical field [0001] The invention relates to a method for measuring intracranial pressure, in particular to a non-invasive method for measuring intracranial pressure with ultrasonic contrast agent and special signal processing technology. Background technique [0002] Regarding traumatic intracranial hematoma, intracranial tumor, hemorrhagic cerebrovascular disease, meningitis, or congenital cranial deformity and other diseases, the phenomenon of increased intracranial pressure often occurs when the meninges, blood vessels or nerves are squeezed. , involved, resulting in persistent headaches, paroxysmal exacerbations, vomiting, and even optic nerve atrophy due to papilledema, resulting in irreversible blindness. Therefore, early detection of intracranial hypertension and timely treatment are extremely important. [0003] Generally, for the detection of increased intracranial pressure, in addition to clinical symptoms such as headache and vomiting, it is still necessary t...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B8/00A61B5/03
CPCA61B8/0808
Inventor 吴宗佑周宜宏苏大荣罗孟宗
Owner MICRO-STAR INTERNATIONAL
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